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d30b8254 | 1 | C********************************************************************* |
2 | C********************************************************************* | |
3 | C* ** | |
4 | C* March 1997 ** | |
5 | C* ** | |
6 | C* The Lund Monte Carlo for Hadronic Processes ** | |
7 | C* ** | |
8 | C* PYTHIA version 6.1 ** | |
9 | C* ** | |
10 | C* Torbjorn Sjostrand ** | |
11 | C* Department of Theoretical Physics 2 ** | |
12 | C* Lund University ** | |
13 | C* Solvegatan 14A, S-223 62 Lund, Sweden ** | |
14 | C* phone +46 - 46 - 222 48 16 ** | |
15 | C* E-mail torbjorn@thep.lu.se ** | |
16 | C* ** | |
17 | C* SUSY parts by ** | |
18 | C* Stephen Mrenna ** | |
19 | C* Argonne National Laboratory ** | |
20 | C* 9700 South Cass Avenue, Argonne, IL 60439, USA ** | |
21 | C* phone + 1 - 630 - 252 - 7615 ** | |
22 | C* E-mail mrenna@hep.anl.gov ** | |
23 | C* ** | |
24 | C* Several parts are written by Hans-Uno Bengtsson ** | |
25 | C* PYSHOW is written together with Mats Bengtsson ** | |
26 | C* advanced popcorn baryon production written by Patrik Eden ** | |
27 | C* CTEQ 3 parton distributions are by the CTEQ collaboration ** | |
28 | C* GRV 94 parton distributions are by Glueck, Reya and Vogt ** | |
29 | C* SaS photon parton distributions together with Gerhard Schuler ** | |
30 | C* g + g and q + qbar -> t + tbar + H code by Zoltan Kunszt ** | |
31 | C* MSSM Higgs mass calculation code by M. Carena, ** | |
32 | C* J.R. Espinosa, M. Quiros and C.E.M. Wagner ** | |
33 | C* PYGAUS adapted from CERN library (K.S. Kolbig) ** | |
34 | C* ** | |
35 | C* The latest program version and documentation is found on WWW ** | |
36 | C* http://www.thep.lu.se/tf2/staff/torbjorn/Pythia.html ** | |
37 | C* ** | |
38 | C* Copyright Torbjorn Sjostrand, Lund 1997 ** | |
39 | C* ** | |
40 | C********************************************************************* | |
41 | C********************************************************************* | |
42 | C * | |
43 | C List of subprograms in order of appearance, with main purpose * | |
44 | C (S = subroutine, F = function, B = block data) * | |
45 | C * | |
46 | C B PYDATA to contain all default values * | |
47 | C S PYTEST to test the proper functioning of the package * | |
48 | C S PYHEPC to convert between /PYJETS/ and /HEPEVT/ records * | |
49 | C * | |
50 | C S PYINIT to administer the initialization procedure * | |
51 | C S PYEVNT to administer the generation of an event * | |
52 | C S PYSTAT to print cross-section and other information * | |
53 | C S PYINRE to initialize treatment of resonances * | |
54 | C S PYINBM to read in beam, target and frame choices * | |
55 | C S PYINKI to initialize kinematics of incoming particles * | |
56 | C S PYINPR to set up the selection of included processes * | |
57 | C S PYXTOT to give total, elastic and diffractive cross-sect. * | |
58 | C S PYMAXI to find differential cross-section maxima * | |
59 | C S PYPILE to select multiplicity of pileup events * | |
60 | C S PYSAVE to save alternatives for gamma-p and gamma-gamma * | |
61 | C S PYRAND to select subprocess and kinematics for event * | |
62 | C S PYSCAT to set up kinematics and colour flow of event * | |
63 | C S PYSSPA to simulate initial state spacelike showers * | |
64 | C S PYRESD to perform resonance decays * | |
65 | C S PYMULT to generate multiple interactions * | |
66 | C S PYREMN to add on target remnants * | |
67 | C S PYDIFF to set up kinematics for diffractive events * | |
68 | C S PYDOCU to compute cross-sections and handle documentation * | |
69 | C S PYFRAM to perform boosts between different frames * | |
70 | C S PYWIDT to calculate full and partial widths of resonances * | |
71 | C S PYOFSH to calculate partial width into off-shell channels * | |
72 | C S PYRECO to handle colour reconnection in W+W- events * | |
73 | C S PYKLIM to calculate borders of allowed kinematical region * | |
74 | C S PYKMAP to construct value of kinematical variable * | |
75 | C S PYSIGH to calculate differential cross-sections * | |
76 | C S PYPDFU to evaluate parton distributions * | |
77 | C S PYPDFL to evaluate parton distributions at low x and Q^2 * | |
78 | C S PYPDEL to evaluate electron parton distributions * | |
79 | C S PYPDGA to evaluate photon parton distributions (generic) * | |
80 | C S PYGGAM to evaluate photon parton distributions (SaS sets) * | |
81 | C S PYGVMD to evaluate VMD part of photon parton distributions * | |
82 | C S PYGANO to evaluate anomalous part of photon pdf's * | |
83 | C S PYGBEH to evaluate Bethe-Heitler part of photon pdf's * | |
84 | C S PYGDIR to evaluate direct contribution to photon pdf's * | |
85 | C S PYPDPI to evaluate pion parton distributions * | |
86 | C S PYPDPR to evaluate proton parton distributions * | |
87 | C F PYCTEQ to evaluate the CTEQ 3 proton parton distributions * | |
88 | C S PYGRVL to evaluate the GRV 94L pronton parton distributions * | |
89 | C S PYGRVM to evaluate the GRV 94M pronton parton distributions * | |
90 | C S PYGRVD to evaluate the GRV 94D pronton parton distributions * | |
91 | C F PYGRVV auxiliary to the PYGRV* routines * | |
92 | C F PYGRVW auxiliary to the PYGRV* routines * | |
93 | C F PYGRVS auxiliary to the PYGRV* routines * | |
94 | C F PYHFTH to evaluate threshold factor for heavy flavour * | |
95 | C S PYSPLI to find flavours left in hadron when one removed * | |
96 | C F PYGAMM to evaluate ordinary Gamma function Gamma(x) * | |
97 | C S PYWAUX to evaluate auxiliary functions W1(s) and W2(s) * | |
98 | C S PYI3AU to evaluate auxiliary function I3(s,t,u,v) * | |
99 | C F PYSPEN to evaluate Spence (dilogarithm) function Sp(x) * | |
100 | C S PYQQBH to evaluate matrix element for g + g -> Q + Qbar + H * | |
101 | C * | |
102 | C S PYMSIN to initialize the supersymmetry simulation * | |
103 | C S PYAPPS to determine MSSM parameters from SUGRA input * | |
104 | C F PYRNMQ to determine running quark masses * | |
105 | C F PYRNMT to determine running top mass * | |
106 | C S PYTHRG to calculate sfermion third-gen. mass eigenstates * | |
107 | C S PYINOM to calculate neutralino/chargino mass eigenstates * | |
108 | C F PYRNM3 to determine running M3, gluino mass * | |
109 | C S PYEIG4 to calculate eigenvalues and -vectors in 4*4 matrix * | |
110 | C S PYHGGM to determine Higgs mass spectrum * | |
111 | C S PYSUBH to determine Higgs masses in the MSSM * | |
112 | C S PYPOLE to determine Higgs masses in the MSSM * | |
113 | C S PYVACU to determine Higgs masses in the MSSM * | |
114 | C S PYRGHM auxiliary to PYVACU * | |
115 | C S PYGFXX auxiliary to PYRGHM * | |
116 | C F PYFINT auxiliary to PYVACU * | |
117 | C F PYFISB auxiliary to PYFINT * | |
118 | C S PYSFDC to calculate sfermion decay partial widths * | |
119 | C S PYGLUI to calculate gluino decay partial widths * | |
120 | C S PYTBBN to calculate 3-body decay of gluino to neutralino * | |
121 | C S PYTBBC to calculate 3-body decay of gluino to chargino * | |
122 | C S PYNJDC to calculate neutralino decay partial widths * | |
123 | C S PYCJDC to calculate chargino decay partial widths * | |
124 | C F PYXXZ5 auxiliary for neutralino 3-body decay * | |
125 | C F PYXXW5 auxiliary for ino charge change 3-body decay * | |
126 | C F PYXXGA auxiliary for ino -> ino + gamma decay * | |
127 | C F PYX2XG auxiliary for ino -> ino + gauge boson decay * | |
128 | C F PYX2XH auxiliary for ino -> ino + Higgs decay * | |
129 | C F PYXXZ2 auxiliary for chargino 3-body decay * | |
130 | C S PYHEXT to calculate non-SM Higgs decay partial widths * | |
131 | C F PYH2XX auxiliary for H -> ino + ino decay * | |
132 | C F PYGAUS to perform Gaussian integration * | |
133 | C F PYSIMP to perform Simpson integration * | |
134 | C F PYLAMF to evaluate the lambda kinematics function * | |
135 | C S PYTBDY to perform 3-body decay of gauginos * | |
136 | C * | |
137 | C S PY1ENT to fill one entry (= parton or particle) * | |
138 | C S PY2ENT to fill two entries * | |
139 | C S PY3ENT to fill three entries * | |
140 | C S PY4ENT to fill four entries * | |
141 | C S PYJOIN to connect entries with colour flow information * | |
142 | C S PYGIVE to fill (or query) commonblock variables * | |
143 | C S PYEXEC to administrate fragmentation and decay chain * | |
144 | C S PYPREP to rearrange showered partons along strings * | |
145 | C S PYSTRF to do string fragmentation of jet system * | |
146 | C S PYINDF to do independent fragmentation of one or many jets * | |
147 | C S PYDECY to do the decay of a particle * | |
148 | C S PYDCYK to select parton and hadron flavours in decays * | |
149 | C S PYKFDI to select parton and hadron flavours in fragm * | |
150 | C S PYNMES to select number of popcorn mesons * | |
151 | C S PYKFIN to calculate falvour prod. ratios from input params. * | |
152 | C S PYPTDI to select transverse momenta in fragm * | |
153 | C S PYZDIS to select longitudinal scaling variable in fragm * | |
154 | C S PYSHOW to do timelike parton shower evolution * | |
155 | C S PYBOEI to include Bose-Einstein effects (crudely) * | |
156 | C F PYMASS to give the mass of a particle or parton * | |
157 | C S PYNAME to give the name of a particle or parton * | |
158 | C F PYCHGE to give three times the electric charge * | |
159 | C F PYCOMP to compress standard KF flavour code to internal KC * | |
160 | C S PYERRM to write error messages and abort faulty run * | |
161 | C F PYALEM to give the alpha_electromagnetic value * | |
162 | C F PYALPS to give the alpha_strong value * | |
163 | C F PYANGL to give the angle from known x and y components * | |
164 | C F PYR to provide a random number generator * | |
165 | C S PYRGET to save the state of the random number generator * | |
166 | C S PYRSET to set the state of the random number generator * | |
167 | C S PYROBO to rotate and/or boost an event * | |
168 | C S PYEDIT to remove unwanted entries from record * | |
169 | C S PYLIST to list event record or particle data * | |
170 | C S PYLOGO to write a logo * | |
171 | C S PYUPDA to update particle data * | |
172 | C F PYK to provide integer-valued event information * | |
173 | C F PYP to provide real-valued event information * | |
174 | C S PYSPHE to perform sphericity analysis * | |
175 | C S PYTHRU to perform thrust analysis * | |
176 | C S PYCLUS to perform three-dimensional cluster analysis * | |
177 | C S PYCELL to perform cluster analysis in (eta, phi, E_T) * | |
178 | C S PYJMAS to give high and low jet mass of event * | |
179 | C S PYFOWO to give Fox-Wolfram moments * | |
180 | C S PYTABU to analyze events, with tabular output * | |
181 | C * | |
182 | C S PYEEVT to administrate the generation of an e+e- event * | |
183 | C S PYXTEE to give the total cross-section at given CM energy * | |
184 | C S PYRADK to generate initial state photon radiation * | |
185 | C S PYXKFL to select flavour of primary qqbar pair * | |
186 | C S PYXJET to select (matrix element) jet multiplicity * | |
187 | C S PYX3JT to select kinematics of three-jet event * | |
188 | C S PYX4JT to select kinematics of four-jet event * | |
189 | C S PYXDIF to select angular orientation of event * | |
190 | C S PYONIA to perform generation of onium decay to gluons * | |
191 | C * | |
192 | C S PYBOOK to book a histogram * | |
193 | C S PYFILL to fill an entry in a histogram * | |
194 | C S PYFACT to multiply histogram contents by a factor * | |
195 | C S PYOPER to perform operations between histograms * | |
196 | C S PYHIST to print and reset all histograms * | |
197 | C S PYPLOT to print a single histogram * | |
198 | C S PYNULL to reset contents of a single histogram * | |
199 | C S PYDUMP to dump histogram contents onto a file * | |
200 | C * | |
201 | C S PYKCUT dummy routine for user kinematical cuts * | |
202 | C S PYEVWT dummy routine for weighting events * | |
203 | C S PYUPIN dummy routine to initialize a user process * | |
204 | C S PYUPEV dummy routine to generate a user process event * | |
205 | C S PDFSET dummy routine to be removed when using PDFLIB * | |
206 | C S STRUCTM dummy routine to be removed when using PDFLIB * | |
207 | C S PYTAUD dummy routine for interface to tau decay libraries * | |
208 | C S PYTIME dummy routine for giving date and time * | |
209 | C * | |
210 | C********************************************************************* | |
211 | ||
212 | C...PYDATA | |
213 | C...Default values for switches and parameters, | |
214 | C...and particle, decay and process data. | |
215 | ||
216 | BLOCK DATA PYDATA | |
217 | ||
218 | C...Double precision and integer declarations. | |
219 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
220 | INTEGER PYK,PYCHGE,PYCOMP | |
221 | C...Commonblocks. | |
222 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
223 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
224 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
225 | COMMON/PYDAT4/CHAF(500,2) | |
226 | CHARACTER CHAF*16 | |
227 | COMMON/PYDATR/MRPY(6),RRPY(100) | |
228 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
229 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
230 | COMMON/PYINT1/MINT(400),VINT(400) | |
231 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
232 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
233 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
234 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
235 | COMMON/PYINT6/PROC(0:500) | |
236 | CHARACTER PROC*28 | |
237 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
238 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
239 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
240 | &SFMIX(16,4) | |
241 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
242 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYDAT4/,/PYDATR/,/PYSUBS/, | |
243 | &/PYPARS/,/PYINT1/,/PYINT2/,/PYINT3/,/PYINT4/,/PYINT5/, | |
244 | &/PYINT6/,/PYINT7/,/PYMSSM/,/PYSSMT/,/PYBINS/ | |
245 | ||
246 | C...PYDAT1, containing status codes and most parameters. | |
247 | DATA MSTU/ | |
248 | & 0, 0, 0, 4000,10000, 500, 4000, 0, 0, 2, | |
249 | 1 6, 1, 1, 0, 1, 1, 0, 0, 0, 0, | |
250 | 2 2, 10, 0, 0, 1, 10, 0, 0, 0, 0, | |
251 | 3 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
252 | 4 2, 2, 1, 4, 2, 1, 1, 0, 0, 0, | |
253 | 5 25, 24, 0, 1, 0, 0, 0, 0, 0, 0, | |
254 | 6 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
255 | 7 30*0, | |
256 | 1 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
257 | 2 1, 5, 3, 5, 0, 0, 0, 0, 0, 0, | |
258 | & 80*0/ | |
259 | DATA PARU/ | |
260 | & 3.141592653589793D0, 6.283185307179586D0, | |
261 | & 0.197327D0, 5.06773D0, 0.389380D0, 2.56819D0, 4*0D0, | |
262 | 1 0.001D0, 0.09D0, 0.01D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
263 | 2 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
264 | 3 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
265 | 4 2.0D0, 1.0D0, 0.25D0, 2.5D0, 0.05D0, | |
266 | 4 0D0, 0D0, 0.0001D0, 0D0, 0D0, | |
267 | 5 2.5D0,1.5D0,7.0D0,1.0D0,0.5D0,2.0D0,3.2D0, 0D0, 0D0, 0D0, | |
268 | 6 40*0D0, | |
269 | & 0.00729735D0, 0.232D0, 0.007764D0, 1.0D0, 1.16639D-5, | |
270 | & 0D0, 0D0, 0D0, 0D0, 0D0, | |
271 | 1 0.20D0, 0.25D0, 1.0D0, 4.0D0, 10D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
272 | 2 -0.693D0, -1.0D0, 0.387D0, 1.0D0, -0.08D0, | |
273 | 2 -1.0D0, 1.0D0, 1.0D0, 1.0D0, 0D0, | |
274 | 3 1.0D0,-1.0D0, 1.0D0,-1.0D0, 1.0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
275 | 4 5.0D0, 1.0D0, 1.0D0, 0D0, 1.0D0, 1.0D0, 0D0, 0D0, 0D0, 0D0, | |
276 | 5 1.0D0, 0D0, 0D0, 0D0, 1000D0, 1.0D0, 1.0D0, 1.0D0, 1.0D0,0D0, | |
277 | 6 1.0D0, 1.0D0, 1.0D0, 1.0D0, 1.0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
278 | 7 1.0D0, 1.0D0, 1.0D0, 1.0D0, 1.0D0, 1.0D0, 1.0D0, 0D0,0D0,0D0, | |
279 | 8 1.0D0, 1.0D0, 1.0D0, 0.0D0, 0.0D0, 1.0D0, 1.0D0, 0D0,0D0,0D0, | |
280 | 9 0D0, 0D0, 0D0, 0D0, 1.0D0, 0D0, 0D0, 0D0, 0D0, 0D0/ | |
281 | DATA MSTJ/ | |
282 | & 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, | |
283 | 1 4, 2, 0, 1, 0, 0, 0, 0, 0, 0, | |
284 | 2 2, 1, 1, 2, 1, 2, 2, 0, 0, 0, | |
285 | 3 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
286 | 4 2, 2, 4, 2, 5, 3, 3, 0, 0, 3, | |
287 | 5 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, | |
288 | 6 40*0, | |
289 | & 5, 2, 7, 5, 1, 1, 0, 2, 0, 2, | |
290 | 1 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, | |
291 | 2 80*0/ | |
292 | DATA PARJ/ | |
293 | & 0.10D0, 0.30D0, 0.40D0, 0.05D0, 0.50D0, | |
294 | & 0.50D0, 0.50D0, 0.6D0, 1.2D0, 0.6D0, | |
295 | 1 0.50D0,0.60D0,0.75D0, 0D0, 0D0, 0D0, 0D0, 1.0D0, 1.0D0, 0D0, | |
296 | 2 0.36D0, 1.0D0,0.01D0, 2.0D0,1.0D0,0.4D0, 0D0, 0D0, 0D0, 0D0, | |
297 | 3 0.10D0, 1.0D0, 0.8D0, 1.5D0,0D0,2.0D0,0.2D0,2.5D0,0.6D0,0D0, | |
298 | 4 0.3D0, 0.58D0, 0.5D0, 0.9D0,0.5D0,1.0D0,1.0D0,1.0D0,0D0,0D0, | |
299 | 5 0.77D0, 0.77D0, 0.77D0, -0.05D0, -0.005D0, | |
300 | 5 -0.00001D0, -0.00001D0, -0.00001D0, 1.0D0, 0D0, | |
301 | 6 4.5D0, 0.7D0, 0D0,0.003D0, 0.5D0, 0.5D0, 0D0, 0D0, 0D0, 0D0, | |
302 | 7 10D0, 1000D0, 100D0, 1000D0, 0D0, 0.7D0,10D0, 0D0, 0D0, 0D0, | |
303 | 8 0.29D0, 1.0D0, 1.0D0, 0D0, 10D0, 10D0, 0D0, 0D0, 0D0, 0D0, | |
304 | 9 0.02D0, 1.0D0, 0.2D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
305 | & 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
306 | 1 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
307 | 2 1.0D0, 0.25D0,91.187D0,2.489D0, 0.01D0, | |
308 | 2 2.0D0, 1.0D0, 0.25D0,0.002D0, 0D0, | |
309 | 3 0D0, 0D0, 0D0, 0D0, 0.01D0, 0.99D0, 0D0, 0D0, 0.2D0, 0D0, | |
310 | 4 60*0D0/ | |
311 | ||
312 | C...PYDAT2, with particle data and flavour treatment parameters. | |
313 | DATA (KCHG(I,1),I= 1, 500)/-1,2,-1,2,-1,2,-1,2,2*0,-3,0,-3,0, | |
314 | &-3,0,-3,6*0,3,9*0,3,2*0,3,0,-1,12*0,3,2*0,3,28*0,2,-1,20*0,4*3, | |
315 | &8*0,3*3,4*0,3*3,3*0,3*3,7*0,3*3,3*0,3*3,3*0,-2,-3,2*1,3*0,4,3*3, | |
316 | &6,2*-2,2*-3,0,2*1,2*0,2*3,-2,2*-3,2*0,-3,2*1,2*0,3,0,2*4,2*3,2*6, | |
317 | &3,2*1,2*0,2*3,2*0,4,2*3,2*6,2*3,6,2*-2,2*-3,0,-3,0,2*1,2*0,2*3,0, | |
318 | &3,2*-2,2*-3,2*0,2*-3,0,2*1,2*0,2*3,2*0,2*3,-2,2*-3,2*0,2*-3,2*0, | |
319 | &-3,2*0,2*3,4*0,2*3,2*0,2*3,2*0,2*3,4*0,2*3,2*0,2*3,3*0,3,2*0,3,0, | |
320 | &3,0,3,2*0,3,0,3,3*0,-1,2,-1,2,-1,2,-3,0,-3,0,-3,4*0,3,2*0,3,0,-1, | |
321 | &2,-1,2,-1,2,-3,0,-3,0,-3,0,-1,2,-3,164*0/ | |
322 | DATA (KCHG(I,2),I= 1, 500)/8*1,12*0,2,16*0,2,1,113*0,-1,0,2*-1, | |
323 | &3*0,-1,4*0,2*-1,3*0,2*-1,4*0,-1,5*0,2*-1,4*0,2*-1,5*0,2*-1,6*0, | |
324 | &-1,7*0,2*-1,5*0,2*-1,6*0,2*-1,7*0,2*-1,8*0,-1,56*0,6*1,6*0,2,7*0, | |
325 | &6*1,6*0,2*1,165*0/ | |
326 | DATA (KCHG(I,3),I= 1, 500)/8*1,2*0,8*1,5*0,1,9*0,1,2*0,1,0,2*1, | |
327 | &11*0,1,2*0,1,26*0,1,0,2*1,20*0,4*1,5*0,6*1,4*0,9*1,4*0,12*1,3*0, | |
328 | &102*1,2*0,2*1,2*0,4*1,2*0,6*1,2*0,8*1,3*0,1,0,2*1,0,3*1,0,4*1, | |
329 | &3*0,12*1,3*0,1,2*0,1,0,16*1,163*0/ | |
330 | DATA (KCHG(I,4),I= 1, 293)/1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, | |
331 | &16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36, | |
332 | &37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57, | |
333 | &58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78, | |
334 | &79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99, | |
335 | &100,110,111,113,115,130,210,211,213,215,220,221,223,225,310,311, | |
336 | &313,315,321,323,325,330,331,333,335,411,413,415,421,423,425,431, | |
337 | &433,435,440,441,443,445,511,513,515,521,523,525,531,533,535,541, | |
338 | &543,545,551,553,555,1103,1114,2101,2103,2110,2112,2114,2203,2210, | |
339 | &2212,2214,2224,3101,3103,3112,3114,3122,3201,3203,3212,3214,3222, | |
340 | &3224,3303,3312,3314,3322,3324,3334,4101,4103,4112,4114,4122,4132, | |
341 | &4201,4203,4212,4214,4222,4224,4232,4301,4303,4312,4314,4322,4324, | |
342 | &4332,4334,4403,4412,4414,4422,4424,4432,4434,4444,5101,5103,5112, | |
343 | &5114,5122,5132,5142,5201,5203,5212,5214,5222,5224,5232,5242,5301, | |
344 | &5303,5312,5314,5322,5324,5332,5334,5342,5401,5403,5412,5414,5422, | |
345 | &5424,5432,5434,5442,5444,5503,5512,5514,5522,5524,5532,5534,5542, | |
346 | &5544,5554,10111,10113,10211,10213,10221,10223,10311,10313,10321, | |
347 | &10323,10331,10333,10411,10413,10421,10423,10431,10433,10441, | |
348 | &10443,10511,10513,10521,10523,10531,10533,10541,10543,10551, | |
349 | &10553,20113,20213,20223,20313,20323,20333,20413,20423,20433/ | |
350 | DATA (KCHG(I,4),I= 294, 500)/20443,20513,20523,20533,20543,20553, | |
351 | &100443,100553,1000001,1000002,1000003,1000004,1000005,1000006, | |
352 | &1000011,1000012,1000013,1000014,1000015,1000016,1000021,1000022, | |
353 | &1000023,1000024,1000025,1000035,1000037,1000039,2000001,2000002, | |
354 | &2000003,2000004,2000005,2000006,2000011,2000012,2000013,2000014, | |
355 | &2000015,2000016,4000001,4000002,4000011,4000012,163*0/ | |
356 | DATA (PMAS(I,1),I= 1, 214)/0.0099D0,0.0056D0,0.199D0,1.35D0, | |
357 | &5D0,175D0,2*400D0,2*0D0,0.00051D0,0D0,0.10566D0,0D0,1.777D0,0D0, | |
358 | &400D0,5*0D0,91.187D0,80.33D0,80D0,6*0D0,500D0,900D0,500D0, | |
359 | &3*300D0,350D0,200D0,5000D0,10*0D0,3*100D0,3*200D0,26*0D0,1D0,2D0, | |
360 | &5D0,16*0D0,0.13498D0,0.7685D0,1.318D0,0.49767D0,0D0,0.13957D0, | |
361 | &0.7669D0,1.318D0,0D0,0.54745D0,0.78194D0,1.275D0,2*0.49767D0, | |
362 | &0.8961D0,1.432D0,0.4936D0,0.8916D0,1.425D0,0D0,0.95777D0, | |
363 | &1.0194D0,1.525D0,1.8693D0,2.01D0,2.46D0,1.8645D0,2.0067D0,2.46D0, | |
364 | &1.9685D0,2.1124D0,2.5735D0,0D0,2.9798D0,3.09688D0,3.5562D0, | |
365 | &5.2792D0,5.3248D0,5.83D0,5.2789D0,5.3248D0,5.83D0,5.3693D0, | |
366 | &5.4163D0,6.07D0,6.594D0,6.602D0,7.35D0,9.4D0,9.4603D0,9.9132D0, | |
367 | &0.77133D0,1.234D0,0.57933D0,0.77133D0,0D0,0.93957D0,1.233D0, | |
368 | &0.77133D0,0D0,0.93827D0,1.232D0,1.231D0,0.80473D0,0.92953D0, | |
369 | &1.19744D0,1.3872D0,1.11568D0,0.80473D0,0.92953D0,1.19255D0, | |
370 | &1.3837D0,1.18937D0,1.3828D0,1.09361D0,1.3213D0,1.535D0,1.3149D0, | |
371 | &1.5318D0,1.67245D0,1.96908D0,2.00808D0,2.4521D0,2.5D0,2.2849D0, | |
372 | &2.4703D0,1.96908D0,2.00808D0,2.4535D0,2.5D0,2.4529D0,2.5D0, | |
373 | &2.4656D0,2.15432D0,2.17967D0,2.55D0,2.63D0,2.55D0,2.63D0,2.704D0, | |
374 | &2.8D0,3.27531D0,3.59798D0,3.65648D0,3.59798D0,3.65648D0, | |
375 | &3.78663D0,3.82466D0,4.91594D0,5.38897D0,5.40145D0,5.8D0,5.81D0/ | |
376 | DATA (PMAS(I,1),I= 215, 500)/5.641D0,5.84D0,7.00575D0,5.38897D0, | |
377 | &5.40145D0,5.8D0,5.81D0,5.8D0,5.81D0,5.84D0,7.00575D0,5.56725D0, | |
378 | &5.57536D0,5.96D0,5.97D0,5.96D0,5.97D0,6.12D0,6.13D0,7.19099D0, | |
379 | &6.67143D0,6.67397D0,7.03724D0,7.0485D0,7.03724D0,7.0485D0, | |
380 | &7.21101D0,7.219D0,8.30945D0,8.31325D0,10.07354D0,10.42272D0, | |
381 | &10.44144D0,10.42272D0,10.44144D0,10.60209D0,10.61426D0, | |
382 | &11.70767D0,11.71147D0,15.11061D0,0.9835D0,1.231D0,0.9835D0, | |
383 | &1.231D0,1D0,1.17D0,1.429D0,1.29D0,1.429D0,1.29D0,2*1.4D0,2.272D0, | |
384 | &2.424D0,2.272D0,2.424D0,2.5D0,2.536D0,3.4151D0,3.46D0,5.68D0, | |
385 | &5.73D0,5.68D0,5.73D0,5.92D0,5.97D0,7.25D0,7.3D0,9.8598D0,9.875D0, | |
386 | &2*1.23D0,1.282D0,2*1.402D0,1.427D0,2*2.372D0,2.56D0,3.5106D0, | |
387 | &2*5.78D0,6.02D0,7.3D0,9.8919D0,3.686D0,10.0233D0,32*500D0, | |
388 | &4*400D0,163*0D0/ | |
389 | DATA (PMAS(I,2),I= 1, 500)/5*0D0,1.4D0,16*0D0,2.47833D0, | |
390 | &2.069D0,0.00295D0,6*0D0,14.67788D0,0D0,16.79392D0,8.45231D0, | |
391 | &4.93534D0,5.80468D0,19.1898D0,0.39162D0,417.35283D0,62*0D0, | |
392 | &0.151D0,0.107D0,3*0D0,0.149D0,0.107D0,2*0D0,0.00843D0,0.185D0, | |
393 | &2*0D0,0.0505D0,0.109D0,0D0,0.0498D0,0.098D0,0D0,0.0002D0, | |
394 | &0.00443D0,0.076D0,2*0D0,0.023D0,2*0D0,0.023D0,2*0D0,0.015D0,0D0, | |
395 | &0.0013D0,0D0,0.002D0,2*0D0,0.02D0,2*0D0,0.02D0,2*0D0,0.02D0, | |
396 | &2*0D0,0.02D0,4*0D0,0.12D0,4*0D0,0.12D0,3*0D0,2*0.12D0,3*0D0, | |
397 | &0.0394D0,4*0D0,0.036D0,0D0,0.0358D0,2*0D0,0.0099D0,0D0,0.0091D0, | |
398 | &74*0D0,0.06D0,0.142D0,0.06D0,0.142D0,0D0,0.36D0,0.287D0,0.09D0, | |
399 | &0.287D0,0.09D0,0.25D0,0.08D0,0.05D0,0.02D0,0.05D0,0.02D0,0.05D0, | |
400 | &0D0,0.014D0,0.01D0,8*0.05D0,0D0,0.01D0,2*0.4D0,0.025D0,2*0.174D0, | |
401 | &0.053D0,3*0.05D0,0.0009D0,4*0.05D0,3*0D0,19*1D0,0D0,7*1D0,0D0, | |
402 | &1D0,0D0,1D0,0D0,2.60511D0,2.60839D0,0.42904D0,0.41921D0,163*0D0/ | |
403 | DATA (PMAS(I,3),I= 1, 500)/5*0D0,14D0,16*0D0,24.78326D0, | |
404 | &20.69D0,0.02954D0,6*0D0,146.77876D0,0D0,167.93924D0,84.52308D0, | |
405 | &49.35344D0,58.04675D0,191.89803D0,3.91624D0,4173.5283D0,62*0D0, | |
406 | &0.4D0,0.25D0,3*0D0,0.4D0,0.25D0,2*0D0,0.1D0,0.17D0,2*0D0,0.2D0, | |
407 | &0.12D0,0D0,0.2D0,0.12D0,0D0,0.002D0,0.015D0,0.2D0,2*0D0,0.12D0, | |
408 | &2*0D0,0.12D0,2*0D0,0.05D0,0D0,0.005D0,0D0,0.01D0,2*0D0,0.05D0, | |
409 | &2*0D0,0.05D0,2*0D0,0.05D0,2*0D0,0.05D0,4*0D0,0.14D0,4*0D0,0.14D0, | |
410 | &3*0D0,2*0.14D0,3*0D0,0.04D0,4*0D0,0.035D0,0D0,0.035D0,2*0D0, | |
411 | &0.05D0,0D0,0.05D0,74*0D0,0.05D0,0.25D0,0.05D0,0.25D0,0D0,0.2D0, | |
412 | &0.4D0,0.005D0,0.4D0,0.01D0,0.35D0,0.001D0,0.1D0,0.08D0,0.1D0, | |
413 | &0.08D0,0.1D0,0D0,0.05D0,0.02D0,6*0.1D0,0.05D0,0.1D0,0D0,0.02D0, | |
414 | &2*0.3D0,0.05D0,2*0.3D0,0.02D0,2*0.1D0,0.03D0,0.001D0,4*0.1D0, | |
415 | &3*0D0,19*10D0,0.00001D0,7*10D0,0.00001D0,10D0,0.00001D0,10D0, | |
416 | &0.00001D0,26.05109D0,26.08388D0,4.29043D0,4.19206D0,163*0D0/ | |
417 | DATA (PMAS(I,4),I= 1, 500)/12*0D0,658654D0,0D0,0.0872D0,68*0D0, | |
418 | &0.1D0,0.387D0,16*0D0,0.00003D0,2*0D0,15500D0,0D0,7804.5D0,6*0D0, | |
419 | &26.762D0,3*0D0,3709D0,6*0D0,0.317D0,2*0D0,0.1244D0,2*0D0,0.14D0, | |
420 | &6*0D0,0.468D0,2*0D0,0.462D0,2*0D0,0.483D0,2*0D0,0.15D0,19*0D0, | |
421 | &44.34D0,0D0,78.88D0,4*0D0,23.96D0,2*0D0,49.1D0,0D0,87.1D0,0D0, | |
422 | &24.6D0,4*0D0,0.0618D0,0.029D0,6*0D0,0.106D0,6*0D0,0.019D0,2*0D0, | |
423 | &7*0.1D0,4*0D0,0.342D0,2*0.387D0,6*0D0,2*0.387D0,6*0D0,0.387D0, | |
424 | &0D0,0.387D0,2*0D0,8*0.387D0,0D0,9*0.387D0,83*0D0,163*0D0/ | |
425 | DATA PARF/ | |
426 | & 0.5D0,0.25D0, 0.5D0,0.25D0, 1D0, 0.5D0, 0D0, 0D0, 0D0, 0D0, | |
427 | 1 0.5D0, 0D0, 0.5D0, 0D0, 1D0, 1D0, 0D0, 0D0, 0D0, 0D0, | |
428 | 2 0.5D0, 0D0, 0.5D0, 0D0, 1D0, 1D0, 0D0, 0D0, 0D0, 0D0, | |
429 | 3 0.5D0, 0D0, 0.5D0, 0D0, 1D0, 1D0, 0D0, 0D0, 0D0, 0D0, | |
430 | 4 0.5D0, 0D0, 0.5D0, 0D0, 1D0, 1D0, 0D0, 0D0, 0D0, 0D0, | |
431 | 5 0.5D0, 0D0, 0.5D0, 0D0, 1D0, 1D0, 0D0, 0D0, 0D0, 0D0, | |
432 | 6 0.75D0, 0.5D0, 0D0,0.1667D0,0.0833D0,0.1667D0,0D0,0D0,0D0, 0D0, | |
433 | 7 0D0, 0D0, 1D0,0.3333D0,0.6667D0,0.3333D0,0D0,0D0,0D0, 0D0, | |
434 | 8 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
435 | 9 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
436 | & 0.325D0,0.325D0,0.5D0,1.6D0, 5.0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
437 | 1 0D0,0.11D0,0.16D0,0.048D0,0.50D0,0.45D0,0.55D0,0.60D0,0D0,0D0, | |
438 | 2 0.2D0, 0.1D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, 0D0, | |
439 | 3 60*0D0, | |
440 | 4 0.2D0, 0.5D0, 8*0D0, | |
441 | 5 1800*0D0/ | |
442 | DATA ((VCKM(I,J),J=1,4),I=1,4)/ | |
443 | & 0.95113D0, 0.04884D0, 0.00003D0, 0.00000D0, | |
444 | & 0.04884D0, 0.94940D0, 0.00176D0, 0.00000D0, | |
445 | & 0.00003D0, 0.00176D0, 0.99821D0, 0.00000D0, | |
446 | & 0.00000D0, 0.00000D0, 0.00000D0, 1.00000D0/ | |
447 | ||
448 | C...PYDAT3, with particle decay parameters and data. | |
449 | DATA (MDCY(I,1),I= 1, 500)/5*0,3*1,6*0,1,0,1,5*0,3*1,6*0,1,0, | |
450 | &7*1,10*0,2*1,0,3*1,26*0,3*1,16*0,3*1,3*0,2*1,0,7*1,0,2*1,0,12*1, | |
451 | &0,18*1,0,1,4*0,1,3*0,2*1,2*0,3*1,2*0,4*1,0,5*1,2*0,4*1,2*0,5*1, | |
452 | &2*0,6*1,0,7*1,2*0,5*1,2*0,6*1,2*0,7*1,2*0,8*1,0,75*1,0,7*1,0,1,0, | |
453 | &1,0,4*1,163*0/ | |
454 | DATA (MDCY(I,2),I= 1, 500)/1,9,17,25,33,41,54,64,2*0,74,78,80, | |
455 | &85,87,141,143,148,2*0,151,160,172,188,208,6*0,287,0,309,332,414, | |
456 | &494,521,524,525,10*0,534,539,0,544,564,588,26*0,606,607,611,16*0, | |
457 | &620,622,627,636,0,645,647,649,0,656,664,670,679,681,683,686,696, | |
458 | &702,705,0,716,722,733,739,802,805,813,874,876,884,917,919,0,923, | |
459 | &924,927,929,965,966,974,1010,1011,1019,1058,1059,1063,1094,1095, | |
460 | &1099,1100,1109,0,1111,4*0,1112,3*0,1115,1118,2*0,1119,1121,1124, | |
461 | &2*0,1128,1129,1132,1135,0,1138,1143,1145,1148,1150,2*0,1154,1155, | |
462 | &1156,1232,2*0,1236,1237,1238,1239,1240,2*0,1244,1245,1247,1248, | |
463 | &1250,1254,0,1255,1259,1263,1267,1271,1275,1279,2*0,1283,1284, | |
464 | &1285,1302,1311,2*0,1320,1321,1322,1323,1324,1333,2*0,1342,1343, | |
465 | &1344,1345,1346,1355,1356,2*0,1365,1374,1383,1392,1401,1410,1419, | |
466 | &1428,0,1437,1446,1455,1464,1473,1482,1491,1500,1509,1518,1519, | |
467 | &1520,1521,1522,1527,1530,1532,1537,1539,1544,1551,1555,1557,1559, | |
468 | &1561,1563,1565,1567,1569,1570,1572,1574,1576,1578,1580,1582,1584, | |
469 | &1586,1588,1589,1591,1593,1607,1609,1611,1615,1617,1619,1621,1623, | |
470 | &1625,1627,1629,1631,1633,1644,1658,1670,1682,1694,1706,1718,1731, | |
471 | &1742,1753,1764,1775,1786,1797,1858,1863,1965,2021,2139,2273,0, | |
472 | &2344,2360,2376,2392,2408,2424,2440,0,2455,0,2470,0,2485,2489, | |
473 | &2493,2496,163*0/ | |
474 | DATA (MDCY(I,3),I= 1, 500)/5*8,13,2*10,2*0,4,2,5,2,54,2,5,3, | |
475 | &2*0,9,12,16,20,79,6*0,22,0,23,82,80,27,3,1,9,10*0,2*5,0,20,24,18, | |
476 | &26*0,1,4,9,16*0,2,5,2*9,0,2*2,7,0,8,6,9,2*2,3,10,6,3,11,0,6,11,6, | |
477 | &63,3,8,61,2,8,33,2,4,0,1,3,2,36,1,8,36,1,8,39,1,4,31,1,4,1,9,2,0, | |
478 | &1,4*0,3,3*0,3,1,2*0,2,3,4,2*0,1,3*3,0,5,2,3,2,4,2*0,2*1,76,4,2*0, | |
479 | &4*1,4,2*0,1,2,1,2,4,1,0,7*4,2*0,2*1,17,2*9,2*0,4*1,2*9,2*0,4*1,9, | |
480 | &1,9,2*0,8*9,0,9*9,4*1,5,3,2,5,2,5,7,4,7*2,1,9*2,1,2*2,14,2*2,4, | |
481 | &9*2,11,14,5*12,13,6*11,61,5,102,56,118,134,71,0,6*16,15,0,15,0, | |
482 | &15,0,2*4,3,2,163*0/ | |
483 | DATA (MDME(I,1),I= 1,4000)/6*1,-1,7*1,-1,7*1,-1,7*1,-1,7*1,-1, | |
484 | &7*1,-1,1,-1,12*1,2*-1,8*1,2*-1,73*1,-1,2*1,-1,6*1,2*-1,7*1,2*-1, | |
485 | &3*1,-1,6*1,2*-1,6*1,2*-1,3*1,-1,3*1,-1,3*1,5*-1,3*1,-1,85*1,2*-1, | |
486 | &6*1,8*-1,3*1,-1,3*1,-1,3*1,5*-1,3*1,4*-1,197*1,2*-1,2*1,-1,20*1, | |
487 | &2*-1,6*1,2*-1,7*1,-1,3*1,-1,3*1,5*-1,3*1,-1,1,-1,6*1,2*-1,6*1, | |
488 | &2*-1,1892*1,1503*0/ | |
489 | DATA (MDME(I,2),I= 1,4000)/43*102,4*0,102,0,4*53,3*102,4*0,102, | |
490 | &2*0,3*102,4*0,102,2*0,6*102,42,6*102,2*42,2*0,8*41,2*0,36*41, | |
491 | &8*102,0,102,0,102,2*0,21*102,8*32,8*0,16*32,21*0,62*53,8*32,14*0, | |
492 | &16*32,27*0,62*53,18*0,62*53,9*0,18*53,3*32,0,6*32,3*0,2*32,3*0, | |
493 | &2*32,7*0,8*32,12*0,16*32,6*0,8*32,8*0,12,2*42,2*11,9*42,0,2,3, | |
494 | &15*0,4*42,5*0,3,12*0,2,3*0,1,0,3,16*0,2*3,15*0,2*42,2*3,18*0,2*3, | |
495 | &3*0,1,11*0,22*42,41*0,2*3,9*0,16*42,45*0,3,10*0,10*42,20*0,2*13, | |
496 | &6*0,12,2*0,12,0,12,14*42,16*0,48,3*13,2*42,9*0,14*42,16*0,48, | |
497 | &3*13,2*42,9*0,14*42,19*0,48,3*13,2*42,6*0,2*11,28*42,5*0,32,3*0, | |
498 | &4*32,2*4,0,32,45*0,14*42,52*0,10*13,2*42,2*11,4*0,2*42,2*11,6*0, | |
499 | &2*42,2*11,0,2*42,2*11,2*42,2*11,2*42,2*11,2*42,2*11,2*42,2*11, | |
500 | &2*42,2*11,2*42,2*11,2*0,3*42,8*0,48,3*13,20*42,4*0,18*42,4*0, | |
501 | &9*42,0,162*42,50*0,2*12,17*0,2*32,33*0,12,9*0,32,2*0,12,11*0, | |
502 | &4*32,2*4,5*0,828*53,1515*0/ | |
503 | DATA (BRAT(I) ,I= 1, 418)/43*0D0,0.00003D0,0.00177D0,0.9982D0, | |
504 | &33*0D0,1D0,6*0D0,0.1783D0,0.1735D0,0.1131D0,0.2494D0,0.003D0, | |
505 | &0.09D0,0.0027D0,0.01D0,0.0014D0,0.0012D0,2*0.00025D0,0.0071D0, | |
506 | &0.012D0,0.0004D0,0.00075D0,0.00006D0,2*0.00078D0,0.0034D0,0.08D0, | |
507 | &0.011D0,0.0191D0,0.00006D0,0.005D0,0.0133D0,0.0067D0,0.0005D0, | |
508 | &0.0035D0,0.0006D0,0.0015D0,0.00021D0,0.0002D0,0.00075D0,0.0001D0, | |
509 | &0.0002D0,0.0011D0,3*0.0002D0,0.00022D0,0.0004D0,0.0001D0, | |
510 | &2*0.00205D0,2*0.00069D0,0.00025D0,0.00051D0,0.00025D0,35*0D0, | |
511 | &0.15403D0,0.11945D0,0.15402D0,0.11931D0,0.15215D0,3*0D0, | |
512 | &0.03357D0,0.0668D0,0.03357D0,0.0668D0,0.0335D0,0.0668D0,2*0D0, | |
513 | &0.32139D0,0.0165D0,2*0D0,0.0165D0,0.32067D0,2*0D0,0.00001D0, | |
514 | &0.00059D0,6*0D0,2*0.10814D0,0.10806D0,3*0D0,0.00031D0,0.04438D0, | |
515 | &0.88031D0,4*0D0,0.0002D0,0.05531D0,0D0,0.01838D0,0.00071D0,0D0, | |
516 | &0.00009D0,0.00032D0,62*0D0,0.14449D0,0.11223D0,0.14449D0, | |
517 | &0.11223D0,0.14443D0,0.05782D0,2*0D0,0.03172D0,0.06305D0, | |
518 | &0.03172D0,0.06305D0,0.03172D0,0.06305D0,8*0D0,0.24928D0,0.0128D0, | |
519 | &0.00001D0,0D0,0.0128D0,0.24882D0,0.00039D0,0D0,0.00001D0, | |
520 | &0.00046D0,0.22153D0,5*0D0,2*0.08464D0,0.08463D0,7*0D0,0.00005D0, | |
521 | &0.00097D0,5*0D0,0.00007D0,0D0,0.00049D0,0.00001D0,0.00006D0, | |
522 | &0.30591D0,0.68863D0,0D0,0.0038D0,66*0D0,0.00008D0,0.00167D0/ | |
523 | DATA (BRAT(I) ,I= 419, 722)/5*0D0,0.00013D0,0D0,0.00294D0, | |
524 | &0.00001D0,3*0D0,0.99517D0,63*0D0,0.00002D0,0.07231D0,2*0D0, | |
525 | &0.00001D0,0.00269D0,0D0,0.92497D0,18*0D0,0.0024D0,0.99483D0, | |
526 | &0.00278D0,1D0,3*0.21511D0,0.21478D0,2*0D0,2*0.06995D0,2*0D0,1D0, | |
527 | &3*0D0,0.95D0,0.05D0,3*0D0,4*0.25D0,16*0D0,4*0.25D0,20*0D0,1D0, | |
528 | &17*0D0,1D0,2*0.08D0,0.76D0,0.08D0,2*0.105D0,0.04D0,0.5D0,0.08D0, | |
529 | &0.14D0,0.01D0,0.015D0,0.005D0,0.988D0,0.012D0,0.998739D0, | |
530 | &0.00079D0,0.00038D0,0.000046D0,0.000045D0,2*0.34725D0,0.144D0, | |
531 | &0.104D0,0.0245D0,2*0.01225D0,0.0028D0,0.0057D0,0.2112D0,0.1256D0, | |
532 | &2*0.1939D0,2*0.1359D0,0.002D0,0.001D0,0.0006D0,0.999877D0, | |
533 | &0.000123D0,0.99955D0,0.00045D0,2*0.34725D0,0.144D0,0.104D0, | |
534 | &0.049D0,0.0028D0,0.0057D0,0.3923D0,0.321D0,0.2317D0,0.0478D0, | |
535 | &0.0049D0,0.0013D0,0.0003D0,0.0007D0,0.89D0,0.08693D0,0.0221D0, | |
536 | &0.00083D0,2*0.00007D0,0.564D0,0.282D0,0.072D0,0.028D0,0.023D0, | |
537 | &2*0.0115D0,0.005D0,0.003D0,0.6861D0,0.3139D0,2*0.5D0,0.665D0, | |
538 | &0.333D0,0.002D0,0.333D0,0.166D0,0.168D0,0.084D0,0.087D0,0.043D0, | |
539 | &0.059D0,2*0.029D0,0.002D0,0.6352D0,0.2116D0,0.0559D0,0.0173D0, | |
540 | &0.0482D0,0.0318D0,0.666D0,0.333D0,0.001D0,0.332D0,0.166D0, | |
541 | &0.168D0,0.084D0,0.086D0,0.043D0,0.059D0,2*0.029D0,2*0.002D0, | |
542 | &0.437D0,0.208D0,0.302D0,0.0302D0,0.0212D0,0.0016D0,0.48947D0/ | |
543 | DATA (BRAT(I) ,I= 723, 897)/0.34D0,3*0.043D0,0.027D0,0.0126D0, | |
544 | &0.0013D0,0.0003D0,0.00025D0,0.00008D0,0.444D0,2*0.222D0,0.104D0, | |
545 | &2*0.004D0,0.07D0,0.065D0,2*0.005D0,2*0.011D0,5*0.001D0,0.07D0, | |
546 | &0.065D0,2*0.005D0,2*0.011D0,5*0.001D0,0.026D0,0.019D0,0.066D0, | |
547 | &0.041D0,0.045D0,0.076D0,0.0073D0,2*0.0047D0,0.026D0,0.001D0, | |
548 | &0.0006D0,0.0066D0,0.005D0,2*0.003D0,2*0.0006D0,2*0.001D0,0.006D0, | |
549 | &0.005D0,0.012D0,0.0057D0,0.067D0,0.008D0,0.0022D0,0.027D0, | |
550 | &0.004D0,0.019D0,0.012D0,0.002D0,0.009D0,0.0218D0,0.001D0,0.022D0, | |
551 | &0.087D0,0.001D0,0.0019D0,0.0015D0,0.0028D0,0.683D0,0.306D0, | |
552 | &0.011D0,0.3D0,0.15D0,0.16D0,0.08D0,0.13D0,0.06D0,0.08D0,0.04D0, | |
553 | &0.034D0,0.027D0,2*0.002D0,2*0.004D0,2*0.002D0,0.034D0,0.027D0, | |
554 | &2*0.002D0,2*0.004D0,2*0.002D0,0.0365D0,0.045D0,0.073D0,0.062D0, | |
555 | &3*0.021D0,0.0061D0,0.015D0,0.025D0,0.0088D0,0.074D0,0.0109D0, | |
556 | &0.0041D0,0.002D0,0.0035D0,0.0011D0,0.001D0,0.0027D0,2*0.0016D0, | |
557 | &0.0018D0,0.011D0,0.0063D0,0.0052D0,0.018D0,0.016D0,0.0034D0, | |
558 | &0.0036D0,0.0009D0,0.0006D0,0.015D0,0.0923D0,0.018D0,0.022D0, | |
559 | &0.0077D0,0.009D0,0.0075D0,0.024D0,0.0085D0,0.067D0,0.0511D0, | |
560 | &0.017D0,0.0004D0,0.0028D0,0.619D0,0.381D0,0.3D0,0.15D0,0.16D0, | |
561 | &0.08D0,0.13D0,0.06D0,0.08D0,0.04D0,0.01D0,2*0.02D0,0.03D0, | |
562 | &2*0.005D0,2*0.02D0,0.03D0,2*0.005D0,0.015D0,0.037D0,0.028D0/ | |
563 | DATA (BRAT(I) ,I= 898,1063)/0.079D0,0.095D0,0.052D0,0.0078D0, | |
564 | &4*0.001D0,0.028D0,0.033D0,0.026D0,0.05D0,0.01D0,4*0.005D0,0.25D0, | |
565 | &0.0952D0,0.94D0,0.06D0,2*0.4D0,2*0.1D0,1D0,0.0602D0,0.0601D0, | |
566 | &0.8797D0,0.135D0,0.865D0,0.02D0,0.055D0,2*0.005D0,0.008D0, | |
567 | &0.012D0,0.02D0,0.055D0,2*0.005D0,0.008D0,0.012D0,0.01D0,0.03D0, | |
568 | &0.0035D0,0.011D0,0.0055D0,0.0042D0,0.009D0,0.018D0,0.015D0, | |
569 | &0.0185D0,0.0135D0,0.025D0,0.0004D0,0.0007D0,0.0008D0,0.0014D0, | |
570 | &0.0019D0,0.0025D0,0.4291D0,0.08D0,0.07D0,0.02D0,0.015D0,0.005D0, | |
571 | &1D0,0.3D0,0.15D0,0.16D0,0.08D0,0.13D0,0.06D0,0.08D0,0.04D0, | |
572 | &0.02D0,0.055D0,2*0.005D0,0.008D0,0.012D0,0.02D0,0.055D0, | |
573 | &2*0.005D0,0.008D0,0.012D0,0.01D0,0.03D0,0.0035D0,0.011D0, | |
574 | &0.0055D0,0.0042D0,0.009D0,0.018D0,0.015D0,0.0185D0,0.0135D0, | |
575 | &0.025D0,0.0004D0,0.0007D0,0.0008D0,0.0014D0,0.0019D0,0.0025D0, | |
576 | &0.4291D0,0.08D0,0.07D0,0.02D0,0.015D0,0.005D0,1D0,0.3D0,0.15D0, | |
577 | &0.16D0,0.08D0,0.13D0,0.06D0,0.08D0,0.04D0,0.02D0,0.055D0, | |
578 | &2*0.005D0,0.008D0,0.012D0,0.02D0,0.055D0,2*0.005D0,0.008D0, | |
579 | &0.012D0,0.01D0,0.03D0,0.0035D0,0.011D0,0.0055D0,0.0042D0,0.009D0, | |
580 | &0.018D0,0.015D0,0.0185D0,0.0135D0,0.025D0,2*0.0002D0,0.0007D0, | |
581 | &2*0.0004D0,0.0014D0,0.001D0,0.0009D0,0.0025D0,0.4291D0,0.08D0, | |
582 | &0.07D0,0.02D0,0.015D0,0.005D0,1D0,2*0.3D0,2*0.2D0,0.047D0/ | |
583 | DATA (BRAT(I) ,I=1064,1254)/0.122D0,0.006D0,0.012D0,0.035D0, | |
584 | &0.012D0,0.035D0,0.003D0,0.007D0,0.15D0,0.037D0,0.008D0,0.002D0, | |
585 | &0.05D0,0.015D0,0.003D0,0.001D0,0.014D0,0.042D0,0.014D0,0.042D0, | |
586 | &0.24D0,0.065D0,0.012D0,0.003D0,0.001D0,0.002D0,0.001D0,0.002D0, | |
587 | &0.014D0,0.003D0,1D0,2*0.3D0,2*0.2D0,1D0,0.0252D0,0.0248D0, | |
588 | &0.0267D0,0.015D0,0.045D0,0.015D0,0.045D0,0.7743D0,0.029D0,0.22D0, | |
589 | &0.78D0,1D0,0.331D0,0.663D0,0.006D0,0.663D0,0.331D0,0.006D0,1D0, | |
590 | &0.999D0,0.001D0,0.88D0,2*0.06D0,0.639D0,0.358D0,0.002D0,0.001D0, | |
591 | &1D0,0.88D0,2*0.06D0,0.516D0,0.483D0,0.001D0,0.88D0,2*0.06D0, | |
592 | &0.9988D0,0.0001D0,0.0006D0,0.0004D0,0.0001D0,0.667D0,0.333D0, | |
593 | &0.9954D0,0.0011D0,0.0035D0,0.333D0,0.667D0,0.676D0,0.234D0, | |
594 | &0.085D0,0.005D0,2*1D0,0.018D0,2*0.005D0,0.003D0,0.002D0, | |
595 | &2*0.006D0,0.018D0,2*0.005D0,0.003D0,0.002D0,2*0.006D0,0.0066D0, | |
596 | &0.025D0,0.016D0,0.0088D0,2*0.005D0,0.0058D0,0.005D0,0.0055D0, | |
597 | &4*0.004D0,2*0.002D0,2*0.004D0,0.003D0,0.002D0,2*0.003D0, | |
598 | &3*0.002D0,2*0.001D0,0.002D0,2*0.001D0,2*0.002D0,0.0013D0, | |
599 | &0.0018D0,5*0.001D0,4*0.003D0,2*0.005D0,2*0.002D0,2*0.001D0, | |
600 | &2*0.002D0,2*0.001D0,0.2432D0,0.057D0,2*0.035D0,0.15D0,2*0.075D0, | |
601 | &0.03D0,2*0.015D0,2*0.08D0,0.76D0,0.08D0,4*1D0,2*0.08D0,0.76D0, | |
602 | &0.08D0,1D0,2*0.5D0,1D0,2*0.5D0,2*0.08D0,0.76D0,0.08D0,1D0/ | |
603 | DATA (BRAT(I) ,I=1255,1447)/2*0.08D0,0.76D0,3*0.08D0,0.76D0, | |
604 | &3*0.08D0,0.76D0,3*0.08D0,0.76D0,3*0.08D0,0.76D0,3*0.08D0,0.76D0, | |
605 | &3*0.08D0,0.76D0,0.08D0,2*1D0,2*0.105D0,0.04D0,0.0077D0,0.02D0, | |
606 | &0.0235D0,0.0285D0,0.0435D0,0.0011D0,0.0022D0,0.0044D0,0.4291D0, | |
607 | &0.08D0,0.07D0,0.02D0,0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0, | |
608 | &0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0, | |
609 | &0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,4*1D0,2*0.105D0,0.04D0, | |
610 | &0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0,0.04D0, | |
611 | &0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,4*1D0,2*0.105D0, | |
612 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,1D0,2*0.105D0, | |
613 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
614 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
615 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
616 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
617 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
618 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
619 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
620 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
621 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0, | |
622 | &0.04D0,0.5D0,0.08D0,0.14D0,0.01D0,0.015D0,0.005D0,2*0.105D0/ | |
623 | DATA (BRAT(I) ,I=1448,1648)/0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
624 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
625 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
626 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
627 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
628 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
629 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
630 | &0.015D0,0.005D0,2*0.105D0,0.04D0,0.5D0,0.08D0,0.14D0,0.01D0, | |
631 | &0.015D0,0.005D0,4*1D0,0.52D0,0.26D0,0.11D0,2*0.055D0,0.333D0, | |
632 | &0.334D0,0.333D0,0.667D0,0.333D0,0.28D0,0.14D0,0.313D0,0.157D0, | |
633 | &0.11D0,0.667D0,0.333D0,0.28D0,0.14D0,0.313D0,0.157D0,0.11D0, | |
634 | &0.36D0,0.18D0,0.03D0,2*0.015D0,2*0.2D0,4*0.25D0,0.667D0,0.333D0, | |
635 | &0.667D0,0.333D0,0.667D0,0.333D0,0.667D0,0.333D0,4*0.5D0,0.007D0, | |
636 | &0.993D0,1D0,0.667D0,0.333D0,0.667D0,0.333D0,0.667D0,0.333D0, | |
637 | &0.667D0,0.333D0,8*0.5D0,0.02D0,0.98D0,1D0,4*0.5D0,3*0.146D0, | |
638 | &3*0.05D0,0.15D0,2*0.05D0,4*0.024D0,0.066D0,0.667D0,0.333D0, | |
639 | &0.667D0,0.333D0,4*0.25D0,0.667D0,0.333D0,0.667D0,0.333D0,2*0.5D0, | |
640 | &0.273D0,0.727D0,0.667D0,0.333D0,0.667D0,0.333D0,4*0.5D0,0.35D0, | |
641 | &0.65D0,2*0.0083D0,0.1866D0,0.324D0,0.184D0,0.027D0,0.001D0, | |
642 | &0.093D0,0.087D0,0.078D0,0.0028D0,3*0.014D0,0.008D0,0.024D0/ | |
643 | DATA (BRAT(I) ,I=1649,4000)/0.008D0,0.024D0,0.425D0,0.02D0, | |
644 | &0.185D0,0.088D0,0.043D0,0.067D0,0.066D0,827*0D0,0.8516D0, | |
645 | &0.00539D0,0.04483D0,0.09819D0,0.85053D0,0.02152D0,0.02989D0, | |
646 | &0.09806D0,0.29439D0,0.10943D0,0.59618D0,0.38983D0,0.61017D0, | |
647 | &1503*0D0/ | |
648 | DATA (KFDP(I,1),I= 1, 375)/21,22,23,4*-24,25,21,22,23,4*24,25, | |
649 | &21,22,23,4*-24,25,21,22,23,4*24,25,21,22,23,4*-24,25,21,22,23, | |
650 | &4*24,25,37,1000022,1000023,1000025,1000035,21,22,23,4*-24,25, | |
651 | &2*-37,21,22,23,4*24,25,2*37,22,23,-24,25,23,24,-12,22,23,-24,25, | |
652 | &23,24,-12,-14,48*16,22,23,-24,25,23,24,22,23,-24,25,-37,23,24,37, | |
653 | &1,2,3,4,5,6,7,8,21,1,2,3,4,5,6,7,8,11,13,15,17,1,2,3,4,5,6,7,8, | |
654 | &11,12,13,14,15,16,17,18,4*-1,4*-3,4*-5,4*-7,-11,-13,-15,-17,1,2, | |
655 | &3,4,5,6,7,8,11,13,15,17,21,2*22,23,24,1000022,2*1000023, | |
656 | &3*1000025,4*1000035,2*1000024,2*1000037,1000001,2000001,1000001, | |
657 | &-1000001,1000002,2000002,1000002,-1000002,1000003,2000003, | |
658 | &1000003,-1000003,1000004,2000004,1000004,-1000004,1000005, | |
659 | &2000005,1000005,-1000005,1000006,2000006,1000006,-1000006, | |
660 | &1000011,2000011,1000011,-1000011,1000012,2000012,1000012, | |
661 | &-1000012,1000013,2000013,1000013,-1000013,1000014,2000014, | |
662 | &1000014,-1000014,1000015,2000015,1000015,-1000015,1000016, | |
663 | &2000016,1000016,-1000016,1,2,3,4,5,6,7,8,11,12,13,14,15,16,17,18, | |
664 | &24,37,2*23,25,35,4*-1,4*-3,4*-5,4*-7,-11,-13,-15,-17,3*24,1,2,3, | |
665 | &4,5,6,7,8,11,13,15,17,21,2*22,23,24,23,25,36,1000022,2*1000023, | |
666 | &3*1000025,4*1000035,2*1000024,2*1000037,1000001,2000001,1000001, | |
667 | &-1000001,1000002,2000002,1000002,-1000002,1000003,2000003/ | |
668 | DATA (KFDP(I,1),I= 376, 606)/1000003,-1000003,1000004,2000004, | |
669 | &1000004,-1000004,1000005,2000005,1000005,-1000005,1000006, | |
670 | &2000006,1000006,-1000006,1000011,2000011,1000011,-1000011, | |
671 | &1000012,2000012,1000012,-1000012,1000013,2000013,1000013, | |
672 | &-1000013,1000014,2000014,1000014,-1000014,1000015,2000015, | |
673 | &1000015,-1000015,1000016,2000016,1000016,-1000016,1,2,3,4,5,6,7, | |
674 | &8,11,13,15,17,21,2*22,23,24,23,1000022,2*1000023,3*1000025, | |
675 | &4*1000035,2*1000024,2*1000037,1000001,2000001,1000001,-1000001, | |
676 | &1000002,2000002,1000002,-1000002,1000003,2000003,1000003, | |
677 | &-1000003,1000004,2000004,1000004,-1000004,1000005,2000005, | |
678 | &1000005,-1000005,1000006,2000006,1000006,-1000006,1000011, | |
679 | &2000011,1000011,-1000011,1000012,2000012,1000012,-1000012, | |
680 | &1000013,2000013,1000013,-1000013,1000014,2000014,1000014, | |
681 | &-1000014,1000015,2000015,1000015,-1000015,1000016,2000016, | |
682 | &1000016,-1000016,-1,-3,-5,-7,-11,-13,-15,-17,24,2*1000022, | |
683 | &2*1000023,2*1000025,2*1000035,1000006,2000006,1000006,2000006, | |
684 | &-1000001,-1000003,-1000011,-1000013,-1000015,-2000015,5,6,21,2,1, | |
685 | &2,3,4,5,6,11,13,15,4,5,11,13,15,2*4,-11,-13,-15,2*24,2*52,1,2,3, | |
686 | &4,5,6,7,8,11,12,13,14,15,16,17,18,2*24,2*52,4*-1,4*-3,4*-5,4*-7, | |
687 | &-11,-13,-15,-17,22,23,1,2,3,4,5,6,7,8,11,12,13,14,15,16,17,18,82/ | |
688 | DATA (KFDP(I,1),I= 607,1001)/-11,-13,2*2,-12,-14,-16,2*-2,2*-4, | |
689 | &-2,-4,2*22,211,111,221,13,11,213,-213,221,223,321,130,310,111, | |
690 | &331,111,211,-12,12,-14,14,211,111,22,-13,-11,2*211,213,113,221, | |
691 | &223,321,211,331,22,111,211,2*22,211,22,111,211,22,211,221,111,11, | |
692 | &211,111,2*211,321,130,310,221,111,211,111,130,310,321,2*311,321, | |
693 | &311,323,313,323,313,321,3*311,-13,3*211,12,14,311,2*321,311,321, | |
694 | &313,323,313,323,311,4*321,211,111,3*22,111,321,130,-213,113,213, | |
695 | &211,22,111,11,13,211,321,130,310,221,211,111,11*-11,11*-13,-311, | |
696 | &-313,-311,-313,-20313,2*-311,-313,-311,-313,2*111,2*221,2*331, | |
697 | &2*113,2*223,2*333,-311,-313,2*-321,211,-311,-321,333,-311,-313, | |
698 | &-321,211,2*-321,2*-311,-321,211,113,421,2*411,421,411,423,413, | |
699 | &423,413,421,411,8*-11,8*-13,-321,-323,-321,-323,-311,2*-313,-311, | |
700 | &-313,2*-311,-321,-10323,-321,-323,-321,-311,2*-313,211,111,333, | |
701 | &3*-321,-311,-313,-321,-313,310,333,211,2*-321,-311,-313,-311,211, | |
702 | &-321,3*-311,211,113,321,2*421,411,421,413,423,413,423,411,421, | |
703 | &-15,5*-11,5*-13,221,331,333,221,331,333,10221,211,213,211,213, | |
704 | &321,323,321,323,2212,221,331,333,221,2*2,2*431,421,411,423,413, | |
705 | &82,11,13,82,443,82,6*12,6*14,2*16,3*-411,3*-413,2*-411,2*-413, | |
706 | &2*441,2*443,2*20443,2*2,2*4,2,4,511,521,511,523,513,523,513,521, | |
707 | &511,6*12,6*14,2*16,3*-421,3*-423,2*-421,2*-423,2*441,2*443/ | |
708 | DATA (KFDP(I,1),I=1002,1428)/2*20443,2*2,2*4,2,4,521,511,521,513, | |
709 | &523,513,523,511,521,6*12,6*14,2*16,3*-431,3*-433,2*-431,2*-433, | |
710 | &3*441,3*443,3*20443,2*2,2*4,2,4,531,521,511,523,513,16,2*4,2*12, | |
711 | &2*14,2*16,4*2,4*4,2*-11,2*-13,2*-1,2*-3,2*-11,2*-13,2*-1,541,511, | |
712 | &521,513,523,21,11,13,15,1,2,3,4,21,22,553,21,2112,2212,2*2112, | |
713 | &2212,2112,2*2212,2112,-12,3122,3212,3112,2212,2*2112,-12,2*3122, | |
714 | &3222,3112,2212,2112,2212,3122,3222,3212,3122,3112,-12,-14,-12, | |
715 | &3322,3312,2*3122,3212,3322,3312,3122,3322,3312,-12,2*4122,7*-11, | |
716 | &7*-13,2*2224,2*2212,2*2214,2*3122,2*3212,2*3214,5*3222,4*3224, | |
717 | &2*3322,3324,2*2224,7*2212,5*2214,2*2112,2*2114,2*3122,2*3212, | |
718 | &2*3214,2*3222,2*3224,4*2,3,2*2,1,2*2,-11,-13,2*2,4*4122,-11,-13, | |
719 | &2*2,3*4132,3*4232,-11,-13,2*2,4332,-11,-13,2*2,-11,-13,2*2,-11, | |
720 | &-13,2*2,-11,-13,2*2,-11,-13,2*2,-11,-13,2*2,-11,-13,2*2,2*5122, | |
721 | &-12,-14,-16,5*4122,441,443,20443,2*-2,2*-4,-2,-4,-12,-14,-16, | |
722 | &2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,4*5122,-12,-14,-16, | |
723 | &2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,2*5132,2*5232,-12, | |
724 | &-14,-16,2*-2,2*-4,-2,-4,5332,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14, | |
725 | &-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2, | |
726 | &2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2, | |
727 | &-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12/ | |
728 | DATA (KFDP(I,1),I=1429,1710)/-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16, | |
729 | &2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2, | |
730 | &2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2, | |
731 | &-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,-12, | |
732 | &-14,-16,2*-2,2*-4,-2,-4,-12,-14,-16,2*-2,2*-4,-2,-4,221,223,221, | |
733 | &223,211,111,321,130,310,213,113,-213,321,311,321,311,323,313, | |
734 | &2*311,321,311,321,313,323,321,211,111,321,130,310,2*211,313,-313, | |
735 | &323,-323,421,411,423,413,411,421,413,423,411,421,423,413,443, | |
736 | &2*82,521,511,523,513,511,521,513,523,521,511,523,513,511,521,513, | |
737 | &523,553,2*21,213,-213,113,213,10211,10111,-10211,2*221,213,2*113, | |
738 | &-213,2*321,2*311,113,323,2*313,323,313,-313,323,-323,423,2*413, | |
739 | &2*423,413,443,82,523,2*513,2*523,2*513,523,553,21,11,13,82,4*443, | |
740 | &10441,20443,445,441,11,13,15,1,2,3,4,21,22,2*553,10551,20553,555, | |
741 | &1000039,-1000024,-1000037,1000022,1000023,1000025,1000035, | |
742 | &1000002,2000002,1000002,2000002,1000021,1000039,1000024,1000037, | |
743 | &1000022,1000023,1000025,1000035,1000001,2000001,1000001,2000001, | |
744 | &1000021,1000039,-1000024,-1000037,1000022,1000023,1000025, | |
745 | &1000035,1000004,2000004,1000004,2000004,1000021,1000039,1000024, | |
746 | &1000037,1000022,1000023,1000025,1000035,1000003,2000003,1000003, | |
747 | &2000003,1000021,1000039,-1000024,-1000037,1000022,1000023/ | |
748 | DATA (KFDP(I,1),I=1711,1900)/1000025,1000035,1000006,2000006, | |
749 | &1000006,2000006,1000021,1000039,1000024,1000037,1000022,1000023, | |
750 | &1000025,1000035,1000005,2000005,1000005,2000005,1000021,1000022, | |
751 | &1000039,-1000024,-1000037,1000022,1000023,1000025,1000035, | |
752 | &1000012,2000012,1000012,2000012,1000039,1000024,1000037,1000022, | |
753 | &1000023,1000025,1000035,1000011,2000011,1000011,2000011,1000039, | |
754 | &-1000024,-1000037,1000022,1000023,1000025,1000035,1000014, | |
755 | &2000014,1000014,2000014,1000039,1000024,1000037,1000022,1000023, | |
756 | &1000025,1000035,1000013,2000013,1000013,2000013,1000039,-1000024, | |
757 | &-1000037,1000022,1000023,1000025,1000035,1000016,2000016,1000016, | |
758 | &2000016,1000039,1000024,1000037,1000022,1000023,1000025,1000035, | |
759 | &1000015,2000015,1000015,2000015,1000039,1000001,-1000001,2000001, | |
760 | &-2000001,1000002,-1000002,2000002,-2000002,1000003,-1000003, | |
761 | &2000003,-2000003,1000004,-1000004,2000004,-2000004,1000005, | |
762 | &-1000005,2000005,-2000005,1000006,-1000006,2000006,-2000006, | |
763 | &6*1000022,6*1000023,6*1000025,6*1000035,1000024,-1000024,1000024, | |
764 | &-1000024,1000024,-1000024,1000037,-1000037,1000037,-1000037, | |
765 | &1000037,-1000037,10*1000039,16*1000022,1000024,-1000024,1000024, | |
766 | &-1000024,1000024,-1000024,1000024,-1000024,1000024,-1000024, | |
767 | &1000024,-1000024,1000037,-1000037,1000037,-1000037,1000037/ | |
768 | DATA (KFDP(I,1),I=1901,2095)/-1000037,1000037,-1000037,1000037, | |
769 | &-1000037,1000037,-1000037,1000024,-1000024,1000037,-1000037, | |
770 | &1000001,-1000001,2000001,-2000001,1000002,-1000002,2000002, | |
771 | &-2000002,1000003,-1000003,2000003,-2000003,1000004,-1000004, | |
772 | &2000004,-2000004,1000005,-1000005,2000005,-2000005,1000006, | |
773 | &-1000006,2000006,-2000006,1000011,-1000011,2000011,-2000011, | |
774 | &1000012,-1000012,2000012,-2000012,1000013,-1000013,2000013, | |
775 | &-2000013,1000014,-1000014,2000014,-2000014,1000015,-1000015, | |
776 | &2000015,-2000015,1000016,-1000016,2000016,-2000016,5*1000021, | |
777 | &2*1000039,6*1000022,6*1000023,6*1000025,6*1000035,1000022, | |
778 | &1000023,1000025,1000035,1000002,2000002,-1000001,-2000001, | |
779 | &1000004,2000004,-1000003,-2000003,1000006,2000006,-1000005, | |
780 | &-2000005,1000012,2000012,-1000011,-2000011,1000014,2000014, | |
781 | &-1000013,-2000013,1000016,2000016,-1000015,-2000015,2*1000021, | |
782 | &5*1000039,16*1000022,16*1000023,1000024,-1000024,1000024, | |
783 | &-1000024,1000024,-1000024,1000024,-1000024,1000024,-1000024, | |
784 | &1000024,-1000024,1000037,-1000037,1000037,-1000037,1000037, | |
785 | &-1000037,1000037,-1000037,1000037,-1000037,1000037,-1000037, | |
786 | &1000024,-1000024,1000037,-1000037,1000001,-1000001,2000001, | |
787 | &-2000001,1000002,-1000002,2000002,-2000002,1000003,-1000003/ | |
788 | DATA (KFDP(I,1),I=2096,2323)/2000003,-2000003,1000004,-1000004, | |
789 | &2000004,-2000004,1000005,-1000005,2000005,-2000005,1000006, | |
790 | &-1000006,2000006,-2000006,1000011,-1000011,2000011,-2000011, | |
791 | &1000012,-1000012,2000012,-2000012,1000013,-1000013,2000013, | |
792 | &-2000013,1000014,-1000014,2000014,-2000014,1000015,-1000015, | |
793 | &2000015,-2000015,1000016,-1000016,2000016,-2000016,5*1000021, | |
794 | &5*1000039,16*1000022,16*1000023,16*1000025,1000024,-1000024, | |
795 | &1000024,-1000024,1000024,-1000024,1000024,-1000024,1000024, | |
796 | &-1000024,1000024,-1000024,1000037,-1000037,1000037,-1000037, | |
797 | &1000037,-1000037,1000037,-1000037,1000037,-1000037,1000037, | |
798 | &-1000037,1000024,-1000024,1000037,-1000037,1000001,-1000001, | |
799 | &2000001,-2000001,1000002,-1000002,2000002,-2000002,1000003, | |
800 | &-1000003,2000003,-2000003,1000004,-1000004,2000004,-2000004, | |
801 | &1000005,-1000005,2000005,-2000005,1000006,-1000006,2000006, | |
802 | &-2000006,1000011,-1000011,2000011,-2000011,1000012,-1000012, | |
803 | &2000012,-2000012,1000013,-1000013,2000013,-2000013,1000014, | |
804 | &-1000014,2000014,-2000014,1000015,-1000015,2000015,-2000015, | |
805 | &1000016,-1000016,2000016,-2000016,5*1000021,2*1000039,15*1000024, | |
806 | &6*1000022,6*1000023,6*1000025,6*1000035,1000022,1000023,1000025, | |
807 | &1000035,1000002,2000002,-1000001,-2000001,1000004,2000004/ | |
808 | DATA (KFDP(I,1),I=2324,4000)/-1000003,-2000003,1000006,2000006, | |
809 | &-1000005,-2000005,1000012,2000012,-1000011,-2000011,1000014, | |
810 | &2000014,-1000013,-2000013,1000016,2000016,-1000015,-2000015, | |
811 | &2*1000021,1000039,-1000024,-1000037,1000022,1000023,1000025, | |
812 | &1000035,4*1000001,1000002,2000002,1000002,2000002,1000021, | |
813 | &1000039,1000024,1000037,1000022,1000023,1000025,1000035, | |
814 | &4*1000002,1000001,2000001,1000001,2000001,1000021,1000039, | |
815 | &-1000024,-1000037,1000022,1000023,1000025,1000035,4*1000003, | |
816 | &1000004,2000004,1000004,2000004,1000021,1000039,1000024,1000037, | |
817 | &1000022,1000023,1000025,1000035,4*1000004,1000003,2000003, | |
818 | &1000003,2000003,1000021,1000039,-1000024,-1000037,1000022, | |
819 | &1000023,1000025,1000035,4*1000005,1000006,2000006,1000006, | |
820 | &2000006,1000021,1000039,1000024,1000037,1000022,1000023,1000025, | |
821 | &1000035,4*1000006,1000005,2000005,1000005,2000005,1000021, | |
822 | &1000039,-1000024,-1000037,1000022,1000023,1000025,1000035, | |
823 | &4*1000011,1000012,2000012,1000012,2000012,1000039,-1000024, | |
824 | &-1000037,1000022,1000023,1000025,1000035,4*1000013,1000014, | |
825 | &2000014,1000014,2000014,1000039,-1000024,-1000037,1000022, | |
826 | &1000023,1000025,1000035,4*1000015,1000016,2000016,1000016, | |
827 | &2000016,21,22,23,-24,21,22,23,24,22,23,-24,23,24,1503*0/ | |
828 | DATA (KFDP(I,2),I= 1, 337)/3*1,2,4,6,8,1,3*2,1,3,5,7,2,3*3,2,4, | |
829 | &6,8,3,3*4,1,3,5,7,4,3*5,2,4,6,8,5,3*6,1,3,5,7,6,5,4*1000006,3*7, | |
830 | &2,4,6,8,7,4,6,3*8,1,3,5,7,8,5,7,2*11,12,11,12,2*11,2*13,14,13,14, | |
831 | &13,11,13,-211,-213,-211,-213,-211,-213,-211,-213,2*-211,-321, | |
832 | &-323,-321,2*-323,3*-321,4*-211,-213,-211,-213,-211,-213,-211, | |
833 | &-213,-211,-213,3*-211,-213,4*-211,-323,-321,2*-211,2*-321,3*-211, | |
834 | &2*15,16,15,16,15,2*17,18,17,2*18,2*17,-1,-2,-3,-4,-5,-6,-7,-8,21, | |
835 | &-1,-2,-3,-4,-5,-6,-7,-8,-11,-13,-15,-17,-1,-2,-3,-4,-5,-6,-7,-8, | |
836 | &-11,-12,-13,-14,-15,-16,-17,-18,2,4,6,8,2,4,6,8,2,4,6,8,2,4,6,8, | |
837 | &12,14,16,18,-1,-2,-3,-4,-5,-6,-7,-8,-11,-13,-15,-17,21,22,2*23, | |
838 | &-24,2*1000022,1000023,1000022,1000023,1000025,1000022,1000023, | |
839 | &1000025,1000035,-1000024,-1000037,-1000024,-1000037,-1000001, | |
840 | &2*-2000001,2000001,-1000002,2*-2000002,2000002,-1000003, | |
841 | &2*-2000003,2000003,-1000004,2*-2000004,2000004,-1000005, | |
842 | &2*-2000005,2000005,-1000006,2*-2000006,2000006,-1000011, | |
843 | &2*-2000011,2000011,-1000012,2*-2000012,2000012,-1000013, | |
844 | &2*-2000013,2000013,-1000014,2*-2000014,2000014,-1000015, | |
845 | &2*-2000015,2000015,-1000016,2*-2000016,2000016,-1,-2,-3,-4,-5,-6, | |
846 | &-7,-8,-11,-12,-13,-14,-15,-16,-17,-18,-24,-37,22,25,2*36,2,4,6,8, | |
847 | &2,4,6,8,2,4,6,8,2,4,6,8,12,14,16,18,23,22,25,-1,-2,-3,-4,-5,-6/ | |
848 | DATA (KFDP(I,2),I= 338, 524)/-7,-8,-11,-13,-15,-17,21,22,2*23, | |
849 | &-24,2*25,36,2*1000022,1000023,1000022,1000023,1000025,1000022, | |
850 | &1000023,1000025,1000035,-1000024,-1000037,-1000024,-1000037, | |
851 | &-1000001,2*-2000001,2000001,-1000002,2*-2000002,2000002,-1000003, | |
852 | &2*-2000003,2000003,-1000004,2*-2000004,2000004,-1000005, | |
853 | &2*-2000005,2000005,-1000006,2*-2000006,2000006,-1000011, | |
854 | &2*-2000011,2000011,-1000012,2*-2000012,2000012,-1000013, | |
855 | &2*-2000013,2000013,-1000014,2*-2000014,2000014,-1000015, | |
856 | &2*-2000015,2000015,-1000016,2*-2000016,2000016,-1,-2,-3,-4,-5,-6, | |
857 | &-7,-8,-11,-13,-15,-17,21,22,2*23,-24,25,2*1000022,1000023, | |
858 | &1000022,1000023,1000025,1000022,1000023,1000025,1000035,-1000024, | |
859 | &-1000037,-1000024,-1000037,-1000001,2*-2000001,2000001,-1000002, | |
860 | &2*-2000002,2000002,-1000003,2*-2000003,2000003,-1000004, | |
861 | &2*-2000004,2000004,-1000005,2*-2000005,2000005,-1000006, | |
862 | &2*-2000006,2000006,-1000011,2*-2000011,2000011,-1000012, | |
863 | &2*-2000012,2000012,-1000013,2*-2000013,2000013,-1000014, | |
864 | &2*-2000014,2000014,-1000015,2*-2000015,2000015,-1000016, | |
865 | &2*-2000016,2000016,2,4,6,8,12,14,16,18,25,1000024,1000037, | |
866 | &1000024,1000037,1000024,1000037,1000024,1000037,2*-1000005, | |
867 | &2*-2000005,1000002,1000004,1000012,1000014,2*1000016,-5,-6,21,11/ | |
868 | DATA (KFDP(I,2),I= 525, 940)/-3,-4,-5,-6,-7,-8,-13,-15,-17,-4,-5, | |
869 | &-11,-13,-15,-5,-3,12,14,16,-24,-52,-24,-52,-1,-2,-3,-4,-5,-6,-7, | |
870 | &-8,-11,-12,-13,-14,-15,-16,-17,-18,23,51,23,51,2,4,6,8,2,4,6,8,2, | |
871 | &4,6,8,2,4,6,8,12,14,16,18,2*51,-1,-2,-3,-4,-5,-6,-7,-8,-11,-12, | |
872 | &-13,-14,-15,-16,-17,-18,-82,12,14,-1,-3,11,13,15,1,4,3,4,1,3,22, | |
873 | &11,-211,2*22,-13,-11,-211,211,111,211,-321,130,310,22,2*111,-211, | |
874 | &11,-11,13,-13,-211,111,22,14,12,111,22,111,3*211,-311,22,211,22, | |
875 | &111,-211,211,11,-211,13,22,-211,111,-211,22,111,-11,-211,111, | |
876 | &2*-211,-321,130,310,221,111,-211,111,2*0,-211,111,22,-211,111, | |
877 | &-211,111,-211,211,-213,113,223,221,14,111,211,111,-11,-13,211, | |
878 | &111,22,211,111,211,111,2*211,213,113,223,221,22,-211,111,113,223, | |
879 | &22,111,-321,310,211,111,2*-211,221,22,-11,-13,-211,-321,130,310, | |
880 | &221,-211,111,11*12,11*14,2*211,2*213,211,20213,2*321,2*323,211, | |
881 | &213,211,213,211,213,211,213,211,213,211,213,3*211,213,211,2*321, | |
882 | &8*211,2*113,3*211,111,22,211,111,211,111,4*211,8*12,8*14,2*211, | |
883 | &2*213,2*111,221,2*113,223,333,20213,211,2*321,323,2*311,313,-211, | |
884 | &111,113,2*211,321,2*211,311,321,310,211,-211,4*211,321,4*211,113, | |
885 | &2*211,-321,111,22,-211,111,-211,111,-211,211,-211,211,16,5*12, | |
886 | &5*14,3*211,3*213,211,2*111,2*113,2*-311,2*-313,-2112,3*321,323, | |
887 | &2*-1,22,111,321,311,321,311,-82,-11,-13,-82,22,-82,6*-11,6*-13/ | |
888 | DATA (KFDP(I,2),I= 941,1318)/2*-15,211,213,20213,211,213,20213, | |
889 | &431,433,431,433,311,313,311,313,311,313,-1,-4,-3,-4,-1,-3,22, | |
890 | &-211,111,-211,111,-211,211,-211,211,6*-11,6*-13,2*-15,211,213, | |
891 | &20213,211,213,20213,431,433,431,433,321,323,321,323,321,323,-1, | |
892 | &-4,-3,-4,-1,-3,22,211,111,211,111,4*211,6*-11,6*-13,2*-15,211, | |
893 | &213,20213,211,213,20213,431,433,431,433,221,331,333,221,331,333, | |
894 | &221,331,333,-1,-4,-3,-4,-1,-3,22,-321,-311,-321,-311,-15,-3,-1, | |
895 | &2*-11,2*-13,2*-15,-1,-4,-3,-4,-3,-4,-1,-4,2*12,2*14,2,3,2,3,2*12, | |
896 | &2*14,2,1,22,411,421,411,421,21,-11,-13,-15,-1,-2,-3,-4,2*21,22, | |
897 | &21,2*-211,111,22,111,211,22,211,-211,11,2*-211,111,-211,111,22, | |
898 | &11,22,111,-211,211,111,211,22,211,111,211,-211,22,11,13,11,-211, | |
899 | &2*111,2*22,111,211,-321,-211,111,11,2*-211,7*12,7*14,-321,-323, | |
900 | &-311,-313,-311,-313,211,213,211,213,211,213,111,221,331,113,223, | |
901 | &111,221,113,223,321,323,321,-211,-213,111,221,331,113,223,333, | |
902 | &10221,111,221,331,113,223,211,213,211,213,321,323,321,323,321, | |
903 | &323,311,313,311,313,2*-1,-3,-1,2203,3201,3203,2203,2101,2103,12, | |
904 | &14,-1,-3,2*111,2*211,12,14,-1,-3,22,111,2*22,111,22,12,14,-1,-3, | |
905 | &22,12,14,-1,-3,12,14,-1,-3,12,14,-1,-3,12,14,-1,-3,12,14,-1,-3, | |
906 | &12,14,-1,-3,12,14,-1,-3,2*-211,11,13,15,-211,-213,-20213,-431, | |
907 | &-433,3*3122,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1/ | |
908 | DATA (KFDP(I,2),I=1319,1774)/3,2*111,2*211,11,13,15,1,4,3,4,1,3, | |
909 | &11,13,15,1,4,3,4,1,3,4*22,11,13,15,1,4,3,4,1,3,22,11,13,15,1,4,3, | |
910 | &4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4, | |
911 | &1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1, | |
912 | &3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3, | |
913 | &11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3, | |
914 | &11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3, | |
915 | &11,13,15,1,4,3,4,1,3,11,13,15,1,4,3,4,1,3,2*111,2*211,-211,111, | |
916 | &-321,130,310,-211,111,211,-211,111,-213,113,-211,111,223,211,111, | |
917 | &213,113,211,111,223,-211,111,-321,130,310,2*-211,-311,311,-321, | |
918 | &321,211,111,211,111,-211,111,-211,111,311,2*321,311,22,2*-82, | |
919 | &-211,111,-211,111,211,111,211,111,-321,-311,-321,-311,411,421, | |
920 | &411,421,22,2*21,-211,2*211,111,-211,111,2*211,111,-211,211,111, | |
921 | &211,-321,2*-311,-321,22,-211,111,211,111,-311,311,-321,321,211, | |
922 | &111,-211,111,321,311,22,-82,-211,111,211,111,-321,-311,411,421, | |
923 | &22,21,-11,-13,-82,211,111,221,111,4*22,-11,-13,-15,-1,-2,-3,-4, | |
924 | &2*21,211,111,3*22,1,2*2,4*1,2*-24,2*-37,1,2,2*1,4*2,2*24,2*37,2, | |
925 | &3,2*4,4*3,2*-24,2*-37,3,4,2*3,4*4,2*24,2*37,4,5,2*6,4*5,2*-24, | |
926 | &2*-37,5,6,2*5,4*6,2*24,2*37,6,4,11,2*12,4*11,2*-24,2*-37,12,2*11, | |
927 | &4*12,2*24,2*37,13,2*14,4*13,2*-24,2*-37,14,2*13,4*14,2*24,2*37/ | |
928 | DATA (KFDP(I,2),I=1775,2218)/15,2*16,4*15,2*-24,2*-37,16,2*15, | |
929 | &4*16,2*24,2*37,21,-1,1,-1,1,-2,2,-2,2,-3,3,-3,3,-4,4,-4,4,-5,5, | |
930 | &-5,5,-6,6,-6,6,1,3,5,2,4,6,1,3,5,2,4,6,1,3,5,2,4,6,1,3,5,2,4,6,1, | |
931 | &-1,3,-3,5,-5,1,-1,3,-3,5,-5,22,23,25,35,36,22,23,25,35,36,22,23, | |
932 | &11,13,15,12,14,16,1,3,5,2,4,25,35,36,-24,24,11,-11,13,-13,15,-15, | |
933 | &1,-1,3,-3,-24,24,11,-11,13,-13,15,-15,1,-1,3,-3,-37,37,-37,37,-1, | |
934 | &1,-1,1,-2,2,-2,2,-3,3,-3,3,-4,4,-4,4,-5,5,-5,5,-6,6,-6,6,-11,11, | |
935 | &-11,11,-12,12,-12,12,-13,13,-13,13,-14,14,-14,14,-15,15,-15,15, | |
936 | &-16,16,-16,16,1,3,5,2,4,24,37,24,-11,-13,-15,-1,-3,24,-11,-13, | |
937 | &-15,-1,-3,24,-11,-13,-15,-1,-3,24,-11,-13,-15,-1,-3,4*37,2*-1, | |
938 | &2*2,2*-3,2*4,2*-5,2*6,2*-11,2*12,2*-13,2*14,2*-15,2*16,-1,-3,22, | |
939 | &23,25,35,36,22,23,11,13,15,12,14,16,1,3,5,2,4,25,35,36,22,23,11, | |
940 | &13,15,12,14,16,1,3,5,2,4,25,35,36,-24,24,11,-11,13,-13,15,-15,1, | |
941 | &-1,3,-3,-24,24,11,-11,13,-13,15,-15,1,-1,3,-3,-37,37,-37,37,-1,1, | |
942 | &-1,1,-2,2,-2,2,-3,3,-3,3,-4,4,-4,4,-5,5,-5,5,-6,6,-6,6,-11,11, | |
943 | &-11,11,-12,12,-12,12,-13,13,-13,13,-14,14,-14,14,-15,15,-15,15, | |
944 | &-16,16,-16,16,1,3,5,2,4,22,23,25,35,36,22,23,11,13,15,12,14,16,1, | |
945 | &3,5,2,4,25,35,36,22,23,11,13,15,12,14,16,1,3,5,2,4,25,35,36,22, | |
946 | &23,11,13,15,12,14,16,1,3,5,2,4,25,35,36,-24,24,11,-11,13,-13,15, | |
947 | &-15,1,-1,3,-3,-24,24,11,-11,13,-13,15,-15,1,-1,3,-3,-37,37,-37/ | |
948 | DATA (KFDP(I,2),I=2219,4000)/37,-1,1,-1,1,-2,2,-2,2,-3,3,-3,3,-4, | |
949 | &4,-4,4,-5,5,-5,5,-6,6,-6,6,-11,11,-11,11,-12,12,-12,12,-13,13, | |
950 | &-13,13,-14,14,-14,14,-15,15,-15,15,-16,16,-16,16,1,3,5,2,4,24,37, | |
951 | &23,11,13,15,12,14,16,1,3,5,2,4,25,35,36,24,-11,-13,-15,-1,-3,24, | |
952 | &-11,-13,-15,-1,-3,24,-11,-13,-15,-1,-3,24,-11,-13,-15,-1,-3,4*37, | |
953 | &2*-1,2*2,2*-3,2*4,2*-5,2*6,2*-11,2*12,2*-13,2*14,2*-15,2*16,-1, | |
954 | &-3,1,2*2,4*1,23,25,35,36,2*-24,2*-37,1,2,2*1,4*2,23,25,35,36, | |
955 | &2*24,2*37,2,3,2*4,4*3,23,25,35,36,2*-24,2*-37,3,4,2*3,4*4,23,25, | |
956 | &35,36,2*24,2*37,4,5,2*6,4*5,23,25,35,36,2*-24,2*-37,5,6,2*5,4*6, | |
957 | &23,25,35,36,2*24,2*37,6,11,2*12,4*11,23,25,35,36,2*-24,2*-37,13, | |
958 | &2*14,4*13,23,25,35,36,2*-24,2*-37,15,2*16,4*15,23,25,35,36,2*-24, | |
959 | &2*-37,3*1,4*2,1,2*11,2*12,11,1503*0/ | |
960 | DATA (KFDP(I,3),I= 1,1087)/79*0,14,6*0,2*16,2*0,6*111,310,130, | |
961 | &2*0,3*111,310,130,321,113,211,223,221,2*113,2*211,2*223,2*221, | |
962 | &2*113,221,2*113,2*213,-213,113,2*111,310,130,310,130,2*310,130, | |
963 | &470*0,4*3,4*4,1,4,3,2*2,0,-11,8*0,-211,5*0,2*111,211,-211,211, | |
964 | &-211,10*0,111,4*0,2*111,-211,-11,11,-13,22,111,3*0,22,3*0,111, | |
965 | &211,4*0,111,11*0,111,-211,6*0,-211,3*111,7*0,111,-211,5*0,2*221, | |
966 | &3*0,111,5*0,111,11*0,-311,-313,-311,-321,-313,-323,111,221,331, | |
967 | &113,223,-311,-313,-311,-321,-313,-323,111,221,331,113,223,22*0, | |
968 | &111,113,2*211,-211,-311,211,111,3*211,-211,7*211,7*0,111,-211, | |
969 | &111,-211,-321,-323,-311,-321,-313,-323,-211,-213,-321,-323,-311, | |
970 | &-321,-313,-323,-211,-213,22*0,111,113,-311,2*-211,211,-211,310, | |
971 | &-211,2*111,211,2*-211,-321,-211,2*211,-211,111,-211,2*211,6*0, | |
972 | &111,-211,111,-211,0,221,331,333,321,311,221,331,333,321,311,20*0, | |
973 | &3,13*0,-411,-413,-10413,-10411,-20413,-415,-411,-413,-10413, | |
974 | &-10411,-20413,-415,-411,-413,16*0,-4,-1,-4,-3,2*-2,5*0,111,-211, | |
975 | &111,-211,-421,-423,-10423,-10421,-20423,-425,-421,-423,-10423, | |
976 | &-10421,-20423,-425,-421,-423,16*0,-4,-1,-4,-3,2*-2,5*0,111,-211, | |
977 | &111,-211,-431,-433,-10433,-10431,-20433,-435,-431,-433,-10433, | |
978 | &-10431,-20433,-435,-431,-433,19*0,-4,-1,-4,-3,2*-2,8*0,441,443, | |
979 | &441,443,441,443,-4,-1,-4,-3,-4,-3,-4,-1,531,533,531,533,3,2,3,2/ | |
980 | DATA (KFDP(I,3),I=1088,2186)/511,513,511,513,1,2,13*0,2*21,11*0, | |
981 | &2112,6*0,2212,12*0,2*3122,3212,10*0,3322,2*0,3122,3212,3214,2112, | |
982 | &2114,2212,2112,3122,3212,3214,2112,2114,2212,2112,52*0,3*3,1,6*0, | |
983 | &4*3,4*0,4*3,6*0,4*3,0,28*3,2*0,3*4122,8*0,4,1,4,3,2*2,4*4,1,4,3, | |
984 | &2*2,4*4,1,4,3,2*2,4*0,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*0,4*4,1,4,3, | |
985 | &2*2,0,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2, | |
986 | &4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4, | |
987 | &3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2, | |
988 | &4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4,3,2*2,4*4,1,4, | |
989 | &3,2*2,31*0,211,111,45*0,-211,2*111,-211,3*111,-211,111,211,30*0, | |
990 | &-211,111,13*0,2*21,-211,111,167*0,-1,-3,-5,-2,-4,-6,-1,-3,-5,-2, | |
991 | &-4,-6,-1,-3,-5,-2,-4,-6,-1,-3,-5,-2,-4,-6,-2,2,-4,4,-6,6,-2,2,-4, | |
992 | &4,-6,6,12*0,-11,-13,-15,-12,-14,-16,-1,-3,-5,-2,-4,5*0,-12,12, | |
993 | &-14,14,-16,16,-2,2,-4,4,2*0,-12,12,-14,14,-16,16,-2,2,-4,4,52*0, | |
994 | &-1,-3,-5,-2,-4,3*0,12,14,16,2,4,0,12,14,16,2,4,0,12,14,16,2,4,0, | |
995 | &12,14,16,2,4,28*0,2,4,7*0,-11,-13,-15,-12,-14,-16,-1,-3,-5,-2,-4, | |
996 | &5*0,-11,-13,-15,-12,-14,-16,-1,-3,-5,-2,-4,5*0,-12,12,-14,14,-16, | |
997 | &16,-2,2,-4,4,2*0,-12,12,-14,14,-16,16,-2,2,-4,4,52*0,-1,-3,-5,-2, | |
998 | &-4,7*0,-11,-13,-15,-12,-14,-16,-1,-3,-5,-2,-4,5*0,-11,-13,-15, | |
999 | &-12,-14,-16,-1,-3,-5,-2,-4,5*0,-11,-13,-15,-12,-14,-16,-1,-3,-5/ | |
1000 | DATA (KFDP(I,3),I=2187,4000)/-2,-4,5*0,-12,12,-14,14,-16,16,-2,2, | |
1001 | &-4,4,2*0,-12,12,-14,14,-16,16,-2,2,-4,4,52*0,-1,-3,-5,-2,-4,3*0, | |
1002 | &-11,-13,-15,-12,-14,-16,-1,-3,-5,-2,-4,4*0,12,14,16,2,4,0,12,14, | |
1003 | &16,2,4,0,12,14,16,2,4,0,12,14,16,2,4,28*0,2,4,1657*0/ | |
1004 | DATA (KFDP(I,4),I= 1,4000)/92*0,4*111,6*0,111,2*0,-211,0,-211, | |
1005 | &3*0,111,2*-211,0,111,0,2*111,113,221,2*111,-213,-211,211,113, | |
1006 | &6*111,310,2*130,470*0,13*81,41*0,-11,10*0,111,-211,4*0,111,62*0, | |
1007 | &111,211,111,211,7*0,111,211,111,211,35*0,2*-211,2*111,211,111, | |
1008 | &-211,2*211,2*-211,13*0,-211,111,-211,111,4*0,-211,111,-211,111, | |
1009 | &34*0,111,-211,3*111,3*-211,2*111,3*-211,14*0,-321,-311,3*0,-321, | |
1010 | &-311,20*0,-3,43*0,6*1,39*0,6*2,42*0,6*3,14*0,8*4,4*0,4*-5,4*0, | |
1011 | &2*-5,67*0,-211,111,5*0,-211,111,52*0,2101,2103,2*2101,6*0,4*81, | |
1012 | &4*0,4*81,6*0,4*81,0,28*81,13*0,6*2101,18*81,4*0,18*81,4*0,9*81,0, | |
1013 | &162*81,31*0,-211,111,2450*0/ | |
1014 | DATA (KFDP(I,5),I= 1,4000)/94*0,2*111,17*0,111,7*0,2*111,0, | |
1015 | &3*111,0,111,665*0,-211,2*111,-211,111,-211,111,65*0,111,-211, | |
1016 | &3*111,-211,111,3127*0/ | |
1017 | ||
1018 | C...PYDAT4, with particle names (character strings). | |
1019 | DATA (CHAF(I,1),I= 1, 190)/'d','u','s','c','b','t','b''','t''', | |
1020 | &2*' ','e-','nu_e','mu-','nu_mu','tau-','nu_tau','tau''-', | |
1021 | &'nu''_tau',2*' ','g','gamma','Z0','W+','h0',2*' ','reggeon', | |
1022 | &'pomeron',2*' ','Z''0','Z"0','W''+','H0','A0','H+','eta_tech0', | |
1023 | &'LQ_ue','R0',10*' ','pi_tech0','pi_tech+','pi''_tech0', | |
1024 | &'rho_tech0','rho_tech+','omega_tech',24*' ','specflav', | |
1025 | &'rndmflav','phasespa','c-hadron','b-hadron',5*' ','cluster', | |
1026 | &'string','indep.','CMshower','SPHEaxis','THRUaxis','CLUSjet', | |
1027 | &'CELLjet','table',' ','rho_diff0','pi0','rho0','a_20','K_L0', | |
1028 | &'pi_diffr+','pi+','rho+','a_2+','omega_di','eta','omega','f_2', | |
1029 | &'K_S0','K0','K*0','K*_20','K+','K*+','K*_2+','phi_diff','eta''', | |
1030 | &'phi','f''_2','D+','D*+','D*_2+','D0','D*0','D*_20','D_s+', | |
1031 | &'D*_s+','D*_2s+','J/psi_di','eta_c','J/psi','chi_2c','B0','B*0', | |
1032 | &'B*_20','B+','B*+','B*_2+','B_s0','B*_s0','B*_2s0','B_c+', | |
1033 | &'B*_c+','B*_2c+','eta_b','Upsilon','chi_2b','dd_1','Delta-', | |
1034 | &'ud_0','ud_1','n_diffr0','n0','Delta0','uu_1','p_diffr+','p+', | |
1035 | &'Delta+','Delta++','sd_0','sd_1','Sigma-','Sigma*-','Lambda0', | |
1036 | &'su_0','su_1','Sigma0','Sigma*0','Sigma+','Sigma*+','ss_1','Xi-', | |
1037 | &'Xi*-','Xi0','Xi*0','Omega-','cd_0','cd_1','Sigma_c0', | |
1038 | &'Sigma*_c0','Lambda_c+','Xi_c0','cu_0','cu_1','Sigma_c+'/ | |
1039 | DATA (CHAF(I,1),I= 191, 317)/'Sigma*_c+','Sigma_c++', | |
1040 | &'Sigma*_c++','Xi_c+','cs_0','cs_1','Xi''_c0','Xi*_c0','Xi''_c+', | |
1041 | &'Xi*_c+','Omega_c0','Omega*_c0','cc_1','Xi_cc+','Xi*_cc+', | |
1042 | &'Xi_cc++','Xi*_cc++','Omega_cc+','Omega*_cc+','Omega*_ccc++', | |
1043 | &'bd_0','bd_1','Sigma_b-','Sigma*_b-','Lambda_b0','Xi_b-', | |
1044 | &'Xi_bc0','bu_0','bu_1','Sigma_b0','Sigma*_b0','Sigma_b+', | |
1045 | &'Sigma*_b+','Xi_b0','Xi_bc+','bs_0','bs_1','Xi''_b-','Xi*_b-', | |
1046 | &'Xi''_b0','Xi*_b0','Omega_b-','Omega*_b-','Omega_bc0','bc_0', | |
1047 | &'bc_1','Xi''_bc0','Xi*_bc0','Xi''_bc+','Xi*_bc+','Omega''_bc0', | |
1048 | &'Omega*_bc0','Omega_bcc+','Omega*_bcc+','bb_1','Xi_bb-', | |
1049 | &'Xi*_bb-','Xi_bb0','Xi*_bb0','Omega_bb-','Omega*_bb-', | |
1050 | &'Omega_bbc0','Omega*_bbc0','Omega*_bbb-','a_00','b_10','a_0+', | |
1051 | &'b_1+','f_0','h_1','K*_00','K_10','K*_0+','K_1+','f''_0','h''_1', | |
1052 | &'D*_0+','D_1+','D*_00','D_10','D*_0s+','D_1s+','chi_0c','h_1c', | |
1053 | &'B*_00','B_10','B*_0+','B_1+','B*_0s0','B_1s0','B*_0c+','B_1c+', | |
1054 | &'chi_0b','h_1b','a_10','a_1+','f_1','K*_10','K*_1+','f''_1', | |
1055 | &'D*_1+','D*_10','D*_1s+','chi_1c','B*_10','B*_1+','B*_1s0', | |
1056 | &'B*_1c+','chi_1b','psi''','Upsilon''','~d_L','~u_L','~s_L', | |
1057 | &'~c_L','~b_1','~t_1','~e_L-','~nu_eL','~mu_L-','~nu_muL', | |
1058 | &'~tau_1-','~nu_tauL','~g','~chi_10','~chi_20','~chi_1+'/ | |
1059 | DATA (CHAF(I,1),I= 318, 500)/'~chi_30','~chi_40','~chi_2+', | |
1060 | &'~gravitino','~d_R','~u_R','~s_R','~c_R','~b_2','~t_2','~e_R-', | |
1061 | &'~nu_eR','~mu_R-','~nu_muR','~tau_2-','~nu_tauR','d*','u*','e*-', | |
1062 | &'nu*_e0',163*' '/ | |
1063 | DATA (CHAF(I,2),I= 1, 206)/'dbar','ubar','sbar','cbar','bbar', | |
1064 | &'tbar','b''bar','t''bar',2*' ','e+','nu_ebar','mu+','nu_mubar', | |
1065 | &'tau+','nu_taubar','tau''+','nu''_taubar',5*' ','W-',9*' ', | |
1066 | &'W''-',2*' ','H-',' ','LQ_uebar','Rbar0',11*' ','pi_tech-',2*' ', | |
1067 | &'rho_tech-',26*' ','rndmflavbar',' ','c-hadronbar','b-hadronbar', | |
1068 | &20*' ','pi_diffr-','pi-','rho-','a_2-',5*' ','Kbar0','K*bar0', | |
1069 | &'K*_2bar0','K-','K*-','K*_2-',4*' ','D-','D*-','D*_2-','Dbar0', | |
1070 | &'D*bar0','D*_2bar0','D_s-','D*_s-','D*_2s-',4*' ','Bbar0', | |
1071 | &'B*bar0','B*_2bar0','B-','B*-','B*_2-','B_sbar0','B*_sbar0', | |
1072 | &'B*_2sbar0','B_c-','B*_c-','B*_2c-',3*' ','dd_1bar','Deltabar+', | |
1073 | &'ud_0bar','ud_1bar','n_diffrbar0','nbar0','Deltabar0','uu_1bar', | |
1074 | &'p_diffrbar-','pbar-','Deltabar-','Deltabar--','sd_0bar', | |
1075 | &'sd_1bar','Sigmabar+','Sigma*bar+','Lambdabar0','su_0bar', | |
1076 | &'su_1bar','Sigmabar0','Sigma*bar0','Sigmabar-','Sigma*bar-', | |
1077 | &'ss_1bar','Xibar+','Xi*bar+','Xibar0','Xi*bar0','Omegabar+', | |
1078 | &'cd_0bar','cd_1bar','Sigma_cbar0','Sigma*_cbar0','Lambda_cbar-', | |
1079 | &'Xi_cbar0','cu_0bar','cu_1bar','Sigma_cbar-','Sigma*_cbar-', | |
1080 | &'Sigma_cbar--','Sigma*_cbar--','Xi_cbar-','cs_0bar','cs_1bar', | |
1081 | &'Xi''_cbar0','Xi*_cbar0','Xi''_cbar-','Xi*_cbar-','Omega_cbar0', | |
1082 | &'Omega*_cbar0','cc_1bar','Xi_ccbar-','Xi*_ccbar-','Xi_ccbar--'/ | |
1083 | DATA (CHAF(I,2),I= 207, 324)/'Xi*_ccbar--','Omega_ccbar-', | |
1084 | &'Omega*_ccbar-','Omega*_cccbar-','bd_0bar','bd_1bar', | |
1085 | &'Sigma_bbar+','Sigma*_bbar+','Lambda_bbar0','Xi_bbar+', | |
1086 | &'Xi_bcbar0','bu_0bar','bu_1bar','Sigma_bbar0','Sigma*_bbar0', | |
1087 | &'Sigma_bbar-','Sigma*_bbar-','Xi_bbar0','Xi_bcbar-','bs_0bar', | |
1088 | &'bs_1bar','Xi''_bbar+','Xi*_bbar+','Xi''_bbar0','Xi*_bbar0', | |
1089 | &'Omega_bbar+','Omega*_bbar+','Omega_bcbar0','bc_0bar','bc_1bar', | |
1090 | &'Xi''_bcbar0','Xi*_bcbar0','Xi''_bcbar-','Xi*_bcbar-', | |
1091 | &'Omega''_bcba','Omega*_bcbar0','Omega_bccbar-','Omega*_bccbar-', | |
1092 | &'bb_1bar','Xi_bbbar+','Xi*_bbbar+','Xi_bbbar0','Xi*_bbbar0', | |
1093 | &'Omega_bbbar+','Omega*_bbbar+','Omega_bbcbar0','Omega*_bbcbar0', | |
1094 | &'Omega*_bbbbar+',2*' ','a_0-','b_1-',2*' ','K*_0bar0','K_1bar0', | |
1095 | &'K*_0-','K_1-',2*' ','D*_0-','D_1-','D*_0bar0','D_1bar0', | |
1096 | &'D*_0s-','D_1s-',2*' ','B*_0bar0','B_1bar0','B*_0-','B_1-', | |
1097 | &'B*_0sbar0','B_1sbar0','B*_0c-','B_1c-',3*' ','a_1-',' ', | |
1098 | &'K*_1bar0','K*_1-',' ','D*_1-','D*_1bar0','D*_1s-',' ', | |
1099 | &'B*_1bar0','B*_1-','B*_1sbar0','B*_1c-',3*' ','~d_Lbar', | |
1100 | &'~u_Lbar','~s_Lbar','~c_Lbar','~b_1bar','~t_1bar','~e_L+', | |
1101 | &'~nu_eLbar','~mu_L+','~nu_muLbar','~tau_1+','~nu_tauLbar',3*' ', | |
1102 | &'~chi_1-',2*' ','~chi_2-',' ','~d_Rbar','~u_Rbar','~s_Rbar'/ | |
1103 | DATA (CHAF(I,2),I= 325, 500)/'~c_Rbar','~b_2bar','~t_2bar', | |
1104 | &'~e_R+','~nu_eRbar','~mu_R+','~nu_muRbar','~tau_2+', | |
1105 | &'~nu_tauRbar','d*bar','u*bar','e*bar+','nu*_ebar0',163*' '/ | |
1106 | ||
1107 | C...PYDATR, with initial values for the random number generator. | |
1108 | DATA MRPY/19780503,0,0,97,33,0/ | |
1109 | ||
1110 | C...Default values for allowed processes and kinematics constraints. | |
1111 | DATA MSEL/1/ | |
1112 | DATA MSUB/500*0/ | |
1113 | DATA ((KFIN(I,J),J=-40,40),I=1,2)/16*0,4*1,4*0,6*1,5*0,5*1,0, | |
1114 | &5*1,5*0,6*1,4*0,4*1,16*0,16*0,4*1,4*0,6*1,5*0,5*1,0,5*1,5*0, | |
1115 | &6*1,4*0,4*1,16*0/ | |
1116 | DATA CKIN/ | |
1117 | & 2.0D0, -1.0D0, 0.0D0, -1.0D0, 1.0D0, | |
1118 | & 1.0D0, -10D0, 10D0, -10D0, 10D0, | |
1119 | 1 -10D0, 10D0, -10D0, 10D0, -10D0, | |
1120 | 1 10D0, -1.0D0, 1.0D0, -1.0D0, 1.0D0, | |
1121 | 2 0.0D0, 1.0D0, 0.0D0, 1.0D0, -1.0D0, | |
1122 | 2 1.0D0, -1.0D0, 1.0D0, 0D0, 0D0, | |
1123 | 3 2.0D0, -1.0D0, 0D0, 0D0, 0.0D0, | |
1124 | 3 -1.0D0, 0.0D0, -1.0D0, 4.0D0, -1.0D0, | |
1125 | 4 12.0D0, -1.0D0, 12.0D0, -1.0D0, 12.0D0, | |
1126 | 4 -1.0D0, 12.0D0, -1.0D0, 0D0, 0D0, | |
1127 | 5 0.0D0, -1.0D0, 0.0D0, -1.0D0, 0.0D0, | |
1128 | 5 -1.0D0, 0D0, 0D0, 0D0, 0D0, | |
1129 | 6 140*0D0/ | |
1130 | ||
1131 | C...Default values for main switches and parameters. Reset information. | |
1132 | DATA (MSTP(I),I=1,100)/ | |
1133 | & 3, 1, 2, 0, 0, 0, 0, 0, 0, 0, | |
1134 | 1 1, 0, 1, 0, 5, 0, 0, 0, 0, 0, | |
1135 | 2 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, | |
1136 | 3 1, 2, 0, 1, 0, 2, 1, 5, 2, 0, | |
1137 | 4 1, 1, 3, 7, 3, 1, 1, 0, 1, 0, | |
1138 | 5 4, 1, 3, 1, 5, 1, 1, 6, 1, 7, | |
1139 | 6 1, 3, 2, 2, 1, 1, 2, 0, 0, 0, | |
1140 | 7 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1141 | 8 1, 1, 100, 0, 0, 0, 0, 0, 0, 0, | |
1142 | 9 1, 4, 1, 2, 0, 0, 0, 0, 0, 0/ | |
1143 | DATA (MSTP(I),I=101,200)/ | |
1144 | & 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, | |
1145 | 1 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, | |
1146 | 2 0, 1, 2, 1, 1, 50, 0, 0, 10, 0, | |
1147 | 3 0, 4, 0, 1, 0, 0, 0, 0, 0, 0, | |
1148 | 4 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1149 | 5 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1150 | 6 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1151 | 7 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, | |
1152 | 8 6, 115, 1998, 01, 27, 0, 0, 0, 0, 0, | |
1153 | 9 0, 0, 0, 0, 0, 0, 0, 0, 0, 0/ | |
1154 | DATA (PARP(I),I=1,100)/ | |
1155 | & 0.25D0, 10D0, 8*0D0, | |
1156 | 1 0D0, 0D0, 1.0D0, 0.01D0, 0.6D0, 1.0D0, 1.0D0, 3*0D0, | |
1157 | 2 10*0D0, | |
1158 | 3 1.5D0,2.0D0,0.075D0,1.0D0,0.2D0,0D0,2.0D0,0.70D0,0.006D0,0D0, | |
1159 | 4 0.02D0,2.0D0,0.10D0,1000D0,2054D0, 123D0, 246D0, 50D0, 2*0D0, | |
1160 | 5 1.0D0, 9*0D0, | |
1161 | 6 0.25D0, 1.0D0,0.25D0, 1.0D0, 2.0D0,1D-3, 4.0D0,1D-3,2*0D0, | |
1162 | 7 4.0D0, 0.25D0, 8*0D0, | |
1163 | 8 1.40D0,1.55D0,0.5D0, 0.2D0,0.33D0,0.66D0, 0.7D0, 0.5D0,2*0D0, | |
1164 | 9 0.44D0,0.20D0,2.0D0,1.0D0,0D0,3.0D0,1.0D0,0.75D0,0.44D0,2.0D0/ | |
1165 | DATA (PARP(I),I=101,200)/ | |
1166 | & 0.5D0, 0.28D0, 1.0D0, 0.8D0, 6*0D0, | |
1167 | 1 2.0D0, 3*0D0, 1.5D0, 0.5D0, 0.6D0, 2.5D0, 2.0D0, 1.0D0, | |
1168 | 2 1.0D0, 0.4D0, 8*0D0, | |
1169 | 3 0.01D0, 9*0D0, | |
1170 | 4 0.33333D0, 82D0, 1D0, 4D0, 200D0, 5*0D0, | |
1171 | 5 0D0, 0D0, 0D0, 0D0, 6*0D0, | |
1172 | 6 2.20D0, 23.6D0, 18.4D0, 11.5D0, 6*0D0, | |
1173 | 7 0D0, 0D0, 0D0, 1.0D0, 6*0D0, | |
1174 | 8 20*0D0/ | |
1175 | DATA MSTI/200*0/ | |
1176 | DATA PARI/200*0D0/ | |
1177 | DATA MINT/400*0/ | |
1178 | DATA VINT/400*0D0/ | |
1179 | ||
1180 | C...Constants for the generation of the various processes. | |
1181 | DATA (ISET(I),I=1,100)/ | |
1182 | & 1, 1, 1, -1, 3, -1, -1, 3, -2, 2, | |
1183 | 1 2, 2, 2, 2, 2, 2, -1, 2, 2, 2, | |
1184 | 2 -1, 2, 2, 2, 2, 2, -1, 2, 2, 2, | |
1185 | 3 2, -1, 2, 2, 2, 2, -1, -1, -1, -1, | |
1186 | 4 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
1187 | 5 -1, -1, 2, 2, -1, -1, -1, 2, -1, -1, | |
1188 | 6 -1, -1, -1, -1, -1, -1, -1, 2, 2, 2, | |
1189 | 7 4, 4, 4, -1, -1, 4, 4, -1, -1, 2, | |
1190 | 8 2, 2, 2, 2, 2, 2, 2, 2, 2, -2, | |
1191 | 9 0, 0, 0, 0, 0, 9, -2, -2, -2, -2/ | |
1192 | DATA (ISET(I),I=101,200)/ | |
1193 | & -1, 1, 1, -2, -2, 2, 2, 2, -2, 2, | |
1194 | 1 2, 2, 2, 2, 2, -1, -1, -1, -2, -2, | |
1195 | 2 5, 5, 5, 5, -2, -2, -2, -2, -2, -2, | |
1196 | 3 -1, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
1197 | 4 1, 1, 1, 1, 1, -2, 1, 1, 1, -2, | |
1198 | 5 1, 1, 1, -2, -2, 1, 1, 1, -2, -2, | |
1199 | 6 2, 2, 2, 2, 2, 2, 2, 2, -2, -2, | |
1200 | 7 2, 2, 5, 5, -2, 2, 2, 5, 5, -2, | |
1201 | 8 5, 5, -2, -2, -2, 5, 5, -2, -2, -2, | |
1202 | 9 1, 1, 1, 2, -2, -2, -2, -2, -2, -2/ | |
1203 | DATA (ISET(I),I=201,300)/ | |
1204 | & 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
1205 | 1 2, 2, 2, 2, -2, 2, 2, 2, 2, 2, | |
1206 | 2 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
1207 | 3 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
1208 | 4 2, 2, 2, 2, -1, 2, 2, 2, 2, 2, | |
1209 | 5 2, 2, 2, 2, -1, 2, -1, 2, 2, -2, | |
1210 | 6 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, | |
1211 | 7 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
1212 | 8 -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | |
1213 | 9 -2, -2, -2, -2, -2, -2, -2, -2, -2, -2/ | |
1214 | DATA (ISET(I),I=301,500)/200*-2/ | |
1215 | DATA ((KFPR(I,J),J=1,2),I=1,50)/ | |
1216 | & 23, 0, 24, 0, 25, 0, 24, 0, 25, 0, | |
1217 | & 24, 0, 23, 0, 25, 0, 0, 0, 0, 0, | |
1218 | 1 0, 0, 0, 0, 21, 21, 21, 22, 21, 23, | |
1219 | 1 21, 24, 21, 25, 22, 22, 22, 23, 22, 24, | |
1220 | 2 22, 25, 23, 23, 23, 24, 23, 25, 24, 24, | |
1221 | 2 24, 25, 25, 25, 0, 21, 0, 22, 0, 23, | |
1222 | 3 0, 24, 0, 25, 0, 21, 0, 22, 0, 23, | |
1223 | 3 0, 24, 0, 25, 0, 21, 0, 22, 0, 23, | |
1224 | 4 0, 24, 0, 25, 0, 21, 0, 22, 0, 23, | |
1225 | 4 0, 24, 0, 25, 0, 21, 0, 22, 0, 23/ | |
1226 | DATA ((KFPR(I,J),J=1,2),I=51,100)/ | |
1227 | 5 0, 24, 0, 25, 0, 0, 0, 0, 0, 0, | |
1228 | 5 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1229 | 6 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1230 | 6 0, 0, 0, 0, 21, 21, 24, 24, 23, 24, | |
1231 | 7 23, 23, 24, 24, 23, 24, 23, 25, 22, 22, | |
1232 | 7 23, 23, 24, 24, 24, 25, 25, 25, 0, 211, | |
1233 | 8 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1234 | 8 443, 21,10441, 21,20443, 21, 445, 21, 0, 0, | |
1235 | 9 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1236 | 9 0, 0, 0, 0, 0, 0, 0, 0, 0, 0/ | |
1237 | DATA ((KFPR(I,J),J=1,2),I=101,150)/ | |
1238 | & 23, 0, 25, 0, 25, 0, 0, 0, 0, 0, | |
1239 | & 443, 22, 443, 21, 443, 22, 0, 0, 22, 25, | |
1240 | 1 21, 25, 0, 25, 21, 25, 22, 22, 21, 22, | |
1241 | 1 22, 23, 23, 23, 24, 24, 0, 0, 0, 0, | |
1242 | 2 25, 6, 25, 6, 25, 0, 25, 0, 0, 0, | |
1243 | 2 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1244 | 3 23, 5, 0, 0, 0, 0, 0, 0, 0, 0, | |
1245 | 3 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
1246 | 4 32, 0, 34, 0, 37, 0, 40, 0, 39, 0, | |
1247 | 4 0, 0, 4000001, 0, 4000002, 0, 38, 0, 0, 0/ | |
1248 | DATA ((KFPR(I,J),J=1,2),I=151,200)/ | |
1249 | 5 35, 0, 35, 0, 35, 0, 0, 0, 0, 0, | |
1250 | 5 36, 0, 36, 0, 36, 0, 0, 0, 0, 0, | |
1251 | 6 6, 37, 39, 0, 39, 39, 39, 39, 11, 0, | |
1252 | 6 11, 0, 0, 4000001, 0, 4000002, 0, 0, 0, 0, | |
1253 | 7 23, 35, 24, 35, 35, 0, 35, 0, 0, 0, | |
1254 | 7 23, 36, 24, 36, 36, 0, 36, 0, 0, 0, | |
1255 | 8 35, 6, 35, 6, 0, 0, 0, 0, 0, 0, | |
1256 | 8 36, 6, 36, 6, 0, 0, 0, 0, 0, 0, | |
1257 | 9 54, 0, 55, 0, 56, 0, 11, 0, 0, 0, | |
1258 | 9 0, 0, 0, 0, 0, 0, 0, 0, 0, 0/ | |
1259 | DATA ((KFPR(I,J),J=1,2),I=201,240)/ | |
1260 | & 1000011, 1000011, 2000011, 2000011, 1000011, | |
1261 | & 2000011, 1000013, 1000013, 2000013, 2000013, | |
1262 | & 1000013, 2000013, 1000015, 1000015, 2000015, | |
1263 | & 2000015, 1000015, 2000015, 1000011, 1000012, | |
1264 | 1 1000015, 1000016, 2000015, 1000016, 1000012, | |
1265 | 1 1000012, 1000016, 1000016, 0, 0, | |
1266 | 1 1000022, 1000022, 1000023, 1000023, 1000025, | |
1267 | 1 1000025, 1000035, 1000035, 1000022, 1000023, | |
1268 | 2 1000022, 1000025, 1000022, 1000035, 1000023, | |
1269 | 2 1000025, 1000023, 1000035, 1000025, 1000035, | |
1270 | 2 1000024, 1000024, 1000037, 1000037, 1000024, | |
1271 | 2 1000037, 1000022, 1000024, 1000023, 1000024, | |
1272 | 3 1000025, 1000024, 1000035, 1000024, 1000022, | |
1273 | 3 1000037, 1000023, 1000037, 1000025, 1000037, | |
1274 | 3 1000035, 1000037, 1000021, 1000022, 1000021, | |
1275 | 3 1000023, 1000021, 1000025, 1000021, 1000035/ | |
1276 | DATA ((KFPR(I,J),J=1,2),I=241,280)/ | |
1277 | 4 1000021, 1000024, 1000021, 1000037, 1000021, | |
1278 | 4 1000021, 1000021, 1000021, 0, 0, | |
1279 | 4 1000002, 1000022, 2000002, 1000022, 1000002, | |
1280 | 4 1000023, 2000002, 1000023, 1000002, 1000025, | |
1281 | 5 2000002, 1000025, 1000002, 1000035, 2000002, | |
1282 | 5 1000035, 1000001, 1000024, 2000005, 1000024, | |
1283 | 5 1000001, 1000037, 2000005, 1000037, 1000002, | |
1284 | 5 1000021, 2000002, 1000021, 0, 0, | |
1285 | 6 1000006, 1000006, 2000006, 2000006, 1000006, | |
1286 | 6 2000006, 1000006, 1000006, 2000006, 2000006, | |
1287 | 6 0, 0, 0, 0, 0, | |
1288 | 6 0, 0, 0, 0, 0, | |
1289 | 7 1000002, 1000002, 2000002, 2000002, 1000002, | |
1290 | 7 2000002, 1000002, 1000002, 2000002, 2000002, | |
1291 | 7 1000002, 2000002, 1000002, 1000002, 2000002, | |
1292 | 7 2000002, 1000002, 1000002, 2000002, 2000002/ | |
1293 | DATA ((KFPR(I,J),J=1,2),I=281,500)/440*0/ | |
1294 | DATA COEF/10000*0D0/ | |
1295 | DATA (((ICOL(I,J,K),K=1,2),J=1,4),I=1,40)/ | |
1296 | &4,0,3,0,2,0,1,0,3,0,4,0,1,0,2,0,2,0,0,1,4,0,0,3,3,0,0,4,1,0,0,2, | |
1297 | &3,0,0,4,1,4,3,2,4,0,0,3,4,2,1,3,2,0,4,1,4,0,2,3,4,0,3,4,2,0,1,2, | |
1298 | &3,2,1,0,1,4,3,0,4,3,3,0,2,1,1,0,3,2,1,4,1,0,0,2,2,4,3,1,2,0,0,1, | |
1299 | &3,2,1,4,1,4,3,2,4,2,1,3,4,2,1,3,3,4,4,3,1,2,2,1,2,0,3,1,2,0,0,0, | |
1300 | &4,2,1,0,0,0,1,0,3,0,0,3,1,2,0,0,4,0,0,4,0,0,1,2,2,0,0,1,4,4,3,3, | |
1301 | &2,2,1,1,4,4,3,3,3,3,4,4,1,1,2,2,3,2,1,3,1,2,0,0,4,2,1,4,0,0,1,2, | |
1302 | &4,0,0,0,4,0,1,3,0,0,3,0,2,4,3,0,3,4,0,0,1,0,0,1,0,0,3,4,2,0,0,2, | |
1303 | &3,0,0,0,1,0,0,0,0,0,3,0,2,0,0,0,2,0,3,1,2,0,0,0,3,2,1,0,1,0,0,0, | |
1304 | &4,4,3,3,2,2,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1305 | &0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0/ | |
1306 | ||
1307 | C...Treatment of resonances. | |
1308 | DATA (MWID(I) ,I= 1, 500)/5*0,3*1,8*0,1,5*0,3*1,6*0,1,0,7*1, | |
1309 | &10*0,2*1,0,3*1,245*0,19*2,0,7*2,0,2,0,2,0,4*1,163*0/ | |
1310 | ||
1311 | C...Character constants: name of processes. | |
1312 | DATA PROC(0)/ 'All included subprocesses '/ | |
1313 | DATA (PROC(I),I=1,20)/ | |
1314 | &'f + fbar -> gamma*/Z0 ', 'f + fbar'' -> W+/- ', | |
1315 | &'f + fbar -> h0 ', 'gamma + W+/- -> W+/- ', | |
1316 | &'Z0 + Z0 -> h0 ', 'Z0 + W+/- -> W+/- ', | |
1317 | &' ', 'W+ + W- -> h0 ', | |
1318 | &' ', 'f + f'' -> f + f'' (QFD) ', | |
1319 | 1'f + f'' -> f + f'' (QCD) ','f + fbar -> f'' + fbar'' ', | |
1320 | 1'f + fbar -> g + g ', 'f + fbar -> g + gamma ', | |
1321 | 1'f + fbar -> g + Z0 ', 'f + fbar'' -> g + W+/- ', | |
1322 | 1'f + fbar -> g + h0 ', 'f + fbar -> gamma + gamma ', | |
1323 | 1'f + fbar -> gamma + Z0 ', 'f + fbar'' -> gamma + W+/- '/ | |
1324 | DATA (PROC(I),I=21,40)/ | |
1325 | 2'f + fbar -> gamma + h0 ', 'f + fbar -> Z0 + Z0 ', | |
1326 | 2'f + fbar'' -> Z0 + W+/- ', 'f + fbar -> Z0 + h0 ', | |
1327 | 2'f + fbar -> W+ + W- ', 'f + fbar'' -> W+/- + h0 ', | |
1328 | 2'f + fbar -> h0 + h0 ', 'f + g -> f + g ', | |
1329 | 2'f + g -> f + gamma ', 'f + g -> f + Z0 ', | |
1330 | 3'f + g -> f'' + W+/- ', 'f + g -> f + h0 ', | |
1331 | 3'f + gamma -> f + g ', 'f + gamma -> f + gamma ', | |
1332 | 3'f + gamma -> f + Z0 ', 'f + gamma -> f'' + W+/- ', | |
1333 | 3'f + gamma -> f + h0 ', 'f + Z0 -> f + g ', | |
1334 | 3'f + Z0 -> f + gamma ', 'f + Z0 -> f + Z0 '/ | |
1335 | DATA (PROC(I),I=41,60)/ | |
1336 | 4'f + Z0 -> f'' + W+/- ', 'f + Z0 -> f + h0 ', | |
1337 | 4'f + W+/- -> f'' + g ', 'f + W+/- -> f'' + gamma ', | |
1338 | 4'f + W+/- -> f'' + Z0 ', 'f + W+/- -> f'' + W+/- ', | |
1339 | 4'f + W+/- -> f'' + h0 ', 'f + h0 -> f + g ', | |
1340 | 4'f + h0 -> f + gamma ', 'f + h0 -> f + Z0 ', | |
1341 | 5'f + h0 -> f'' + W+/- ', 'f + h0 -> f + h0 ', | |
1342 | 5'g + g -> f + fbar ', 'g + gamma -> f + fbar ', | |
1343 | 5'g + Z0 -> f + fbar ', 'g + W+/- -> f + fbar'' ', | |
1344 | 5'g + h0 -> f + fbar ', 'gamma + gamma -> f + fbar ', | |
1345 | 5'gamma + Z0 -> f + fbar ', 'gamma + W+/- -> f + fbar'' '/ | |
1346 | DATA (PROC(I),I=61,80)/ | |
1347 | 6'gamma + h0 -> f + fbar ', 'Z0 + Z0 -> f + fbar ', | |
1348 | 6'Z0 + W+/- -> f + fbar'' ', 'Z0 + h0 -> f + fbar ', | |
1349 | 6'W+ + W- -> f + fbar ', 'W+/- + h0 -> f + fbar'' ', | |
1350 | 6'h0 + h0 -> f + fbar ', 'g + g -> g + g ', | |
1351 | 6'gamma + gamma -> W+ + W- ', 'gamma + W+/- -> Z0 + W+/- ', | |
1352 | 7'Z0 + Z0 -> Z0 + Z0 ', 'Z0 + Z0 -> W+ + W- ', | |
1353 | 7'Z0 + W+/- -> Z0 + W+/- ', 'Z0 + Z0 -> Z0 + h0 ', | |
1354 | 7'W+ + W- -> gamma + gamma ', 'W+ + W- -> Z0 + Z0 ', | |
1355 | 7'W+/- + W+/- -> W+/- + W+/- ', 'W+/- + h0 -> W+/- + h0 ', | |
1356 | 7'h0 + h0 -> h0 + h0 ', 'q + gamma -> q'' + pi+/- '/ | |
1357 | DATA (PROC(I),I=81,100)/ | |
1358 | 8'q + qbar -> Q + Qbar, mass ', 'g + g -> Q + Qbar, massive ', | |
1359 | 8'f + q -> f'' + Q, massive ', 'g + gamma -> Q + Qbar, mass ', | |
1360 | 8'gamma + gamma -> F + Fbar, m', 'g + g -> J/Psi + g ', | |
1361 | 8'g + g -> chi_0c + g ', 'g + g -> chi_1c + g ', | |
1362 | 8'g + g -> chi_2c + g ', ' ', | |
1363 | 9'Elastic scattering ', 'Single diffractive (XB) ', | |
1364 | 9'Single diffractive (AX) ', 'Double diffractive ', | |
1365 | 9'Low-pT scattering ', 'Semihard QCD 2 -> 2 ', | |
1366 | 9' ', ' ', | |
1367 | 9' ', ' '/ | |
1368 | DATA (PROC(I),I=101,120)/ | |
1369 | &'g + g -> gamma*/Z0 ', 'g + g -> h0 ', | |
1370 | &'gamma + gamma -> h0 ', ' ', | |
1371 | &' ', 'g + g -> J/Psi + gamma ', | |
1372 | &'gamma + g -> J/Psi + g ', 'gamma+gamma -> J/Psi + gamma', | |
1373 | &' ', 'f + fbar -> gamma + h0 ', | |
1374 | 1'f + fbar -> g + h0 ', 'q + g -> q + h0 ', | |
1375 | 1'g + g -> g + h0 ', 'g + g -> gamma + gamma ', | |
1376 | 1'g + g -> g + gamma ', 'g + g -> gamma + Z0 ', | |
1377 | 1'g + g -> Z0 + Z0 ', 'g + g -> W+ + W- ', | |
1378 | 1' ', ' '/ | |
1379 | DATA (PROC(I),I=121,140)/ | |
1380 | 2'g + g -> Q + Qbar + h0 ', 'q + qbar -> Q + Qbar + h0 ', | |
1381 | 2'f + f'' -> f + f'' + h0 ', | |
1382 | 2'f + f'' -> f" + f"'' + h0 ', | |
1383 | 2' ', ' ', | |
1384 | 2' ', ' ', | |
1385 | 2' ', ' ', | |
1386 | 3'g + g -> Z0 + q + qbar ', ' ', | |
1387 | 3' ', ' ', | |
1388 | 3' ', ' ', | |
1389 | 3' ', ' ', | |
1390 | 3' ', ' '/ | |
1391 | DATA (PROC(I),I=141,160)/ | |
1392 | 4'f + fbar -> gamma*/Z0/Z''0 ', 'f + fbar'' -> W''+/- ', | |
1393 | 4'f + fbar'' -> H+/- ', 'f + fbar'' -> R ', | |
1394 | 4'q + l -> LQ ', ' ', | |
1395 | 4'd + g -> d* ', 'u + g -> u* ', | |
1396 | 4'g + g -> eta_techni ', ' ', | |
1397 | 5'f + fbar -> H0 ', 'g + g -> H0 ', | |
1398 | 5'gamma + gamma -> H0 ', ' ', | |
1399 | 5' ', 'f + fbar -> A0 ', | |
1400 | 5'g + g -> A0 ', 'gamma + gamma -> A0 ', | |
1401 | 5' ', ' '/ | |
1402 | DATA (PROC(I),I=161,180)/ | |
1403 | 6'f + g -> f'' + H+/- ', 'q + g -> LQ + lbar ', | |
1404 | 6'g + g -> LQ + LQbar ', 'q + qbar -> LQ + LQbar ', | |
1405 | 6'f + fbar -> f'' + fbar'' (g/Z)', | |
1406 | 6'f +fbar'' -> f" + fbar"'' (W) ', | |
1407 | 6'q + q'' -> q" + d* ', 'q + q'' -> q" + u* ', | |
1408 | 6' ', ' ', | |
1409 | 7'f + fbar -> Z0 + H0 ', 'f + fbar'' -> W+/- + H0 ', | |
1410 | 7'f + f'' -> f + f'' + H0 ', | |
1411 | 7'f + f'' -> f" + f"'' + H0 ', | |
1412 | 7' ', 'f + fbar -> Z0 + A0 ', | |
1413 | 7'f + fbar'' -> W+/- + A0 ', | |
1414 | 7'f + f'' -> f + f'' + A0 ', | |
1415 | 7'f + f'' -> f" + f"'' + A0 ', | |
1416 | 7' '/ | |
1417 | DATA (PROC(I),I=181,200)/ | |
1418 | 8'g + g -> Q + Qbar + H0 ', 'q + qbar -> Q + Qbar + H0 ', | |
1419 | 8' ', ' ', | |
1420 | 8' ', 'g + g -> Q + Qbar + A0 ', | |
1421 | 8'q + qbar -> Q + Qbar + A0 ', ' ', | |
1422 | 8' ', ' ', | |
1423 | 9'f + fbar -> rho_tech0 ', 'f + f'' -> rho_tech+/- ', | |
1424 | 9'f + fbar -> omega_tech0 ', 'f+fbar -> f''+fbar'' (technic)', | |
1425 | 9' ', ' ', | |
1426 | 9' ', ' ', | |
1427 | 9' ', ' '/ | |
1428 | DATA (PROC(I),I=201,220)/ | |
1429 | &'f + fbar -> ~e_L + ~e_Lbar ', 'f + fbar -> ~e_R + ~e_Rbar ', | |
1430 | &'f + fbar -> ~e_R + ~e_Lbar ', 'f + fbar -> ~mu_L + ~mu_Lbar', | |
1431 | &'f + fbar -> ~mu_R + ~mu_Rbar', 'f + fbar -> ~mu_L + ~mu_Rbar', | |
1432 | &'f+fbar -> ~tau_1 + ~tau_1bar', 'f+fbar -> ~tau_2 + ~tau_2bar', | |
1433 | &'f+fbar -> ~tau_1 + ~tau_2bar', 'q + qbar'' -> ~l_L + ~nulbar ', | |
1434 | 1'q+qbar''-> ~tau_1 + ~nutaubar', 'q+qbar''-> ~tau_2 + ~nutaubar', | |
1435 | 1'f + fbar -> ~nul + ~nulbar ', 'f+fbar -> ~nutau + ~nutaubar', | |
1436 | 1' ', 'f + fbar -> ~chi1 + ~chi1 ', | |
1437 | 1'f + fbar -> ~chi2 + ~chi2 ', 'f + fbar -> ~chi3 + ~chi3 ', | |
1438 | 1'f + fbar -> ~chi4 + ~chi4 ', 'f + fbar -> ~chi1 + ~chi2 '/ | |
1439 | DATA (PROC(I),I=221,240)/ | |
1440 | 2'f + fbar -> ~chi1 + ~chi3 ', 'f + fbar -> ~chi1 + ~chi4 ', | |
1441 | 2'f + fbar -> ~chi2 + ~chi3 ', 'f + fbar -> ~chi2 + ~chi4 ', | |
1442 | 2'f + fbar -> ~chi3 + ~chi4 ', 'f+fbar -> ~chi+-1 + ~chi-+1 ', | |
1443 | 2'f+fbar -> ~chi+-2 + ~chi-+2 ', 'f+fbar -> ~chi+-1 + ~chi-+2 ', | |
1444 | 2'q + qbar'' -> ~chi1 + ~chi+-1', 'q + qbar'' -> ~chi2 + ~chi+-1', | |
1445 | 3'q + qbar'' -> ~chi3 + ~chi+-1', 'q + qbar'' -> ~chi4 + ~chi+-1', | |
1446 | 3'q + qbar'' -> ~chi1 + ~chi+-2', 'q + qbar'' -> ~chi2 + ~chi+-2', | |
1447 | 3'q + qbar'' -> ~chi3 + ~chi+-2', 'q + qbar'' -> ~chi4 + ~chi+-2', | |
1448 | 3'q + qbar -> ~chi1 + ~g ', 'q + qbar -> ~chi2 + ~g ', | |
1449 | 3'q + qbar -> ~chi3 + ~g ', 'q + qbar -> ~chi4 + ~g '/ | |
1450 | DATA (PROC(I),I=241,260)/ | |
1451 | 4'q + qbar'' -> ~chi+-1 + ~g ', 'q + qbar'' -> ~chi+-2 + ~g ', | |
1452 | 4'q + qbar -> ~g + ~g ', 'g + g -> ~g + ~g ', | |
1453 | 4' ', 'qj + g -> ~qj_L + ~chi1 ', | |
1454 | 4'qj + g -> ~qj_R + ~chi1 ', 'qj + g -> ~qj_L + ~chi2 ', | |
1455 | 4'qj + g -> ~qj_R + ~chi2 ', 'qj + g -> ~qj_L + ~chi3 ', | |
1456 | 5'qj + g -> ~qj_R + ~chi3 ', 'qj + g -> ~qj_L + ~chi4 ', | |
1457 | 5'qj + g -> ~qj_R + ~chi4 ', 'qj + g -> ~qk_L + ~chi+-1 ', | |
1458 | 5'qj + g -> ~qk_R + ~chi+-1 ', 'qj + g -> ~qk_L + ~chi+-2 ', | |
1459 | 5'qj + g -> ~qk_R + ~chi+-2 ', 'qj + g -> ~qj_L + ~g ', | |
1460 | 5'qj + g -> ~qj_R + ~g ', ' '/ | |
1461 | DATA (PROC(I),I=261,280)/ | |
1462 | 6'f + fbar -> ~t_1 + ~t_1bar ', 'f + fbar -> ~t_2 + ~t_2bar ', | |
1463 | 6'f + fbar -> ~t_1 + ~t_2bar ', 'g + g -> ~t_1 + ~t_1bar ', | |
1464 | 6'g + g -> ~t_2 + ~t_2bar ', ' ', | |
1465 | 6' ', ' ', | |
1466 | 6' ', ' ', | |
1467 | 7'qi + qj -> ~qi_L + ~qj_L ', 'qi + qj -> ~qi_R + ~qj_R ', | |
1468 | 7'qi + qj -> ~qi_L + ~qj_R ', 'qi+qjbar -> ~qi_L + ~qj_Lbar', | |
1469 | 7'qi+qjbar -> ~qi_R + ~qj_Rbar', 'qi+qjbar -> ~qi_L + ~qj_Rbar', | |
1470 | 7'f + fbar -> ~qi_L + ~qi_Lbar', 'f + fbar -> ~qi_R + ~qi_Rbar', | |
1471 | 7'g + g -> ~qi_L + ~qi_Lbar ', 'g + g -> ~qi_R + ~qi_Rbar '/ | |
1472 | DATA (PROC(I),I=281,500)/220*' '/ | |
1473 | ||
1474 | C...Cross sections and slope offsets. | |
1475 | DATA SIGT/294*0D0/ | |
1476 | ||
1477 | C...Supersymmetry switches and parameters. | |
1478 | DATA IMSS/0, | |
1479 | & 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, | |
1480 | 1 89*0/ | |
1481 | DATA RMSS/0D0, | |
1482 | & 80D0,160D0,500D0,800D0,2D0,250D0,200D0,800D0,700D0,800D0, | |
1483 | 1 700D0,500D0,250D0,200D0,800D0,400D0,0D0,0.1D0,850D0,0.041D0, | |
1484 | 2 1D0,800D0,1D4,1D4,1D4,0D0,0D0,24D17,2*0D0, | |
1485 | 3 69*0D0/ | |
1486 | ||
1487 | C...Data for histogramming routines. | |
1488 | DATA IHIST/1000,20000,55,1/ | |
1489 | DATA INDX/1000*0/ | |
1490 | ||
1491 | END | |
1492 | ||
1493 | C********************************************************************* | |
1494 | ||
1495 | C...PYTEST | |
1496 | C...A simple program (disguised as subroutine) to run at installation | |
1497 | C...as a check that the program works as intended. | |
1498 | ||
1499 | SUBROUTINE PYTEST(MTEST) | |
1500 | ||
1501 | C...Double precision and integer declarations. | |
1502 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
1503 | INTEGER PYK,PYCHGE,PYCOMP | |
1504 | C...Commonblocks. | |
1505 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
1506 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
1507 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
1508 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
1509 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
1510 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
1511 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/ | |
1512 | C...Local arrays. | |
1513 | DIMENSION PSUM(5),PINI(6),PFIN(6) | |
1514 | ||
1515 | C...Save defaults for values that are changed. | |
1516 | MSTJ1=MSTJ(1) | |
1517 | MSTJ3=MSTJ(3) | |
1518 | MSTJ11=MSTJ(11) | |
1519 | MSTJ42=MSTJ(42) | |
1520 | MSTJ43=MSTJ(43) | |
1521 | MSTJ44=MSTJ(44) | |
1522 | PARJ17=PARJ(17) | |
1523 | PARJ22=PARJ(22) | |
1524 | PARJ43=PARJ(43) | |
1525 | PARJ54=PARJ(54) | |
1526 | MST101=MSTJ(101) | |
1527 | MST104=MSTJ(104) | |
1528 | MST105=MSTJ(105) | |
1529 | MST107=MSTJ(107) | |
1530 | MST116=MSTJ(116) | |
1531 | ||
1532 | C...First part: loop over simple events to be generated. | |
1533 | IF(MTEST.GE.1) CALL PYTABU(20) | |
1534 | NERR=0 | |
1535 | DO 180 IEV=1,500 | |
1536 | ||
1537 | C...Reset parameter values. Switch on some nonstandard features. | |
1538 | MSTJ(1)=1 | |
1539 | MSTJ(3)=0 | |
1540 | MSTJ(11)=1 | |
1541 | MSTJ(42)=2 | |
1542 | MSTJ(43)=4 | |
1543 | MSTJ(44)=2 | |
1544 | PARJ(17)=0.1D0 | |
1545 | PARJ(22)=1.5D0 | |
1546 | PARJ(43)=1D0 | |
1547 | PARJ(54)=-0.05D0 | |
1548 | MSTJ(101)=5 | |
1549 | MSTJ(104)=5 | |
1550 | MSTJ(105)=0 | |
1551 | MSTJ(107)=1 | |
1552 | IF(IEV.EQ.301.OR.IEV.EQ.351.OR.IEV.EQ.401) MSTJ(116)=3 | |
1553 | ||
1554 | C...Ten events each for some single jets configurations. | |
1555 | IF(IEV.LE.50) THEN | |
1556 | ITY=(IEV+9)/10 | |
1557 | MSTJ(3)=-1 | |
1558 | IF(ITY.EQ.3.OR.ITY.EQ.4) MSTJ(11)=2 | |
1559 | IF(ITY.EQ.1) CALL PY1ENT(1,1,15D0,0D0,0D0) | |
1560 | IF(ITY.EQ.2) CALL PY1ENT(1,3101,15D0,0D0,0D0) | |
1561 | IF(ITY.EQ.3) CALL PY1ENT(1,-2203,15D0,0D0,0D0) | |
1562 | IF(ITY.EQ.4) CALL PY1ENT(1,-4,30D0,0D0,0D0) | |
1563 | IF(ITY.EQ.5) CALL PY1ENT(1,21,15D0,0D0,0D0) | |
1564 | ||
1565 | C...Ten events each for some simple jet systems; string fragmentation. | |
1566 | ELSEIF(IEV.LE.130) THEN | |
1567 | ITY=(IEV-41)/10 | |
1568 | IF(ITY.EQ.1) CALL PY2ENT(1,1,-1,40D0) | |
1569 | IF(ITY.EQ.2) CALL PY2ENT(1,4,-4,30D0) | |
1570 | IF(ITY.EQ.3) CALL PY2ENT(1,2,2103,100D0) | |
1571 | IF(ITY.EQ.4) CALL PY2ENT(1,21,21,40D0) | |
1572 | IF(ITY.EQ.5) CALL PY3ENT(1,2101,21,-3203,30D0,0.6D0,0.8D0) | |
1573 | IF(ITY.EQ.6) CALL PY3ENT(1,5,21,-5,40D0,0.9D0,0.8D0) | |
1574 | IF(ITY.EQ.7) CALL PY3ENT(1,21,21,21,60D0,0.7D0,0.5D0) | |
1575 | IF(ITY.EQ.8) CALL PY4ENT(1,2,21,21,-2,40D0, | |
1576 | & 0.4D0,0.64D0,0.6D0,0.12D0,0.2D0) | |
1577 | ||
1578 | C...Seventy events with independent fragmentation and momentum cons. | |
1579 | ELSEIF(IEV.LE.200) THEN | |
1580 | ITY=1+(IEV-131)/16 | |
1581 | MSTJ(2)=1+MOD(IEV-131,4) | |
1582 | MSTJ(3)=1+MOD((IEV-131)/4,4) | |
1583 | IF(ITY.EQ.1) CALL PY2ENT(1,4,-5,40D0) | |
1584 | IF(ITY.EQ.2) CALL PY3ENT(1,3,21,-3,40D0,0.9D0,0.4D0) | |
1585 | IF(ITY.EQ.3) CALL PY4ENT(1,2,21,21,-2,40D0, | |
1586 | & 0.4D0,0.64D0,0.6D0,0.12D0,0.2D0) | |
1587 | IF(ITY.GE.4) CALL PY4ENT(1,2,-3,3,-2,40D0, | |
1588 | & 0.4D0,0.64D0,0.6D0,0.12D0,0.2D0) | |
1589 | ||
1590 | C...A hundred events with random jets (check invariant mass). | |
1591 | ELSEIF(IEV.LE.300) THEN | |
1592 | 100 DO 110 J=1,5 | |
1593 | PSUM(J)=0D0 | |
1594 | 110 CONTINUE | |
1595 | NJET=2D0+6D0*PYR(0) | |
1596 | DO 130 I=1,NJET | |
1597 | KFL=21 | |
1598 | IF(I.EQ.1) KFL=INT(1D0+4D0*PYR(0)) | |
1599 | IF(I.EQ.NJET) KFL=-INT(1D0+4D0*PYR(0)) | |
1600 | EJET=5D0+20D0*PYR(0) | |
1601 | THETA=ACOS(2D0*PYR(0)-1D0) | |
1602 | PHI=6.2832D0*PYR(0) | |
1603 | IF(I.LT.NJET) CALL PY1ENT(-I,KFL,EJET,THETA,PHI) | |
1604 | IF(I.EQ.NJET) CALL PY1ENT(I,KFL,EJET,THETA,PHI) | |
1605 | IF(I.EQ.1.OR.I.EQ.NJET) MSTJ(93)=1 | |
1606 | IF(I.EQ.1.OR.I.EQ.NJET) PSUM(5)=PSUM(5)+PYMASS(KFL) | |
1607 | DO 120 J=1,4 | |
1608 | PSUM(J)=PSUM(J)+P(I,J) | |
1609 | 120 CONTINUE | |
1610 | 130 CONTINUE | |
1611 | IF(PSUM(4)**2-PSUM(1)**2-PSUM(2)**2-PSUM(3)**2.LT. | |
1612 | & (PSUM(5)+PARJ(32))**2) GOTO 100 | |
1613 | ||
1614 | C...Fifty e+e- continuum events with matrix elements. | |
1615 | ELSEIF(IEV.LE.350) THEN | |
1616 | MSTJ(101)=2 | |
1617 | CALL PYEEVT(0,40D0) | |
1618 | ||
1619 | C...Fifty e+e- continuum event with varying shower options. | |
1620 | ELSEIF(IEV.LE.400) THEN | |
1621 | MSTJ(42)=1+MOD(IEV,2) | |
1622 | MSTJ(43)=1+MOD(IEV/2,4) | |
1623 | MSTJ(44)=MOD(IEV/8,3) | |
1624 | CALL PYEEVT(0,90D0) | |
1625 | ||
1626 | C...Fifty e+e- continuum events with coherent shower. | |
1627 | ELSEIF(IEV.LE.450) THEN | |
1628 | CALL PYEEVT(0,500D0) | |
1629 | ||
1630 | C...Fifty Upsilon decays to ggg or gammagg with coherent shower. | |
1631 | ELSE | |
1632 | CALL PYONIA(5,9.46D0) | |
1633 | ENDIF | |
1634 | ||
1635 | C...Generate event. Find total momentum, energy and charge. | |
1636 | DO 140 J=1,4 | |
1637 | PINI(J)=PYP(0,J) | |
1638 | 140 CONTINUE | |
1639 | PINI(6)=PYP(0,6) | |
1640 | CALL PYEXEC | |
1641 | DO 150 J=1,4 | |
1642 | PFIN(J)=PYP(0,J) | |
1643 | 150 CONTINUE | |
1644 | PFIN(6)=PYP(0,6) | |
1645 | ||
1646 | C...Check conservation of energy, momentum and charge; | |
1647 | C...usually exact, but only approximate for single jets. | |
1648 | MERR=0 | |
1649 | IF(IEV.LE.50) THEN | |
1650 | IF((PFIN(1)-PINI(1))**2+(PFIN(2)-PINI(2))**2.GE.4D0) | |
1651 | & MERR=MERR+1 | |
1652 | EPZREM=PINI(4)+PINI(3)-PFIN(4)-PFIN(3) | |
1653 | IF(EPZREM.LT.0D0.OR.EPZREM.GT.2D0*PARJ(31)) MERR=MERR+1 | |
1654 | IF(ABS(PFIN(6)-PINI(6)).GT.2.1D0) MERR=MERR+1 | |
1655 | ELSE | |
1656 | DO 160 J=1,4 | |
1657 | IF(ABS(PFIN(J)-PINI(J)).GT.0.0001D0*PINI(4)) MERR=MERR+1 | |
1658 | 160 CONTINUE | |
1659 | IF(ABS(PFIN(6)-PINI(6)).GT.0.1D0) MERR=MERR+1 | |
1660 | ENDIF | |
1661 | IF(MERR.NE.0) WRITE(MSTU(11),5000) (PINI(J),J=1,4),PINI(6), | |
1662 | & (PFIN(J),J=1,4),PFIN(6) | |
1663 | ||
1664 | C...Check that all KF codes are known ones, and that partons/particles | |
1665 | C...satisfy energy-momentum-mass relation. Store particle statistics. | |
1666 | DO 170 I=1,N | |
1667 | IF(K(I,1).GT.20) GOTO 170 | |
1668 | IF(PYCOMP(K(I,2)).EQ.0) THEN | |
1669 | WRITE(MSTU(11),5100) I | |
1670 | MERR=MERR+1 | |
1671 | ENDIF | |
1672 | PD=P(I,4)**2-P(I,1)**2-P(I,2)**2-P(I,3)**2-P(I,5)**2 | |
1673 | IF(ABS(PD).GT.MAX(0.1D0,0.001D0*P(I,4)**2).OR.P(I,4).LT.0D0) | |
1674 | & THEN | |
1675 | WRITE(MSTU(11),5200) I | |
1676 | MERR=MERR+1 | |
1677 | ENDIF | |
1678 | 170 CONTINUE | |
1679 | IF(MTEST.GE.1) CALL PYTABU(21) | |
1680 | ||
1681 | C...List all erroneous events and some normal ones. | |
1682 | IF(MERR.NE.0.OR.MSTU(24).NE.0.OR.MSTU(28).NE.0) THEN | |
1683 | IF(MERR.GE.1) WRITE(MSTU(11),6400) | |
1684 | CALL PYLIST(2) | |
1685 | ELSEIF(MTEST.GE.1.AND.MOD(IEV-5,100).EQ.0) THEN | |
1686 | CALL PYLIST(1) | |
1687 | ENDIF | |
1688 | ||
1689 | C...Stop execution if too many errors. | |
1690 | IF(MERR.NE.0) NERR=NERR+1 | |
1691 | IF(NERR.GE.10) THEN | |
1692 | WRITE(MSTU(11),6300) | |
1693 | CALL PYLIST(1) | |
1694 | STOP | |
1695 | ENDIF | |
1696 | 180 CONTINUE | |
1697 | ||
1698 | C...Summarize result of run. | |
1699 | IF(MTEST.GE.1) CALL PYTABU(22) | |
1700 | ||
1701 | C...Reset commonblock variables changed during run. | |
1702 | MSTJ(1)=MSTJ1 | |
1703 | MSTJ(3)=MSTJ3 | |
1704 | MSTJ(11)=MSTJ11 | |
1705 | MSTJ(42)=MSTJ42 | |
1706 | MSTJ(43)=MSTJ43 | |
1707 | MSTJ(44)=MSTJ44 | |
1708 | PARJ(17)=PARJ17 | |
1709 | PARJ(22)=PARJ22 | |
1710 | PARJ(43)=PARJ43 | |
1711 | PARJ(54)=PARJ54 | |
1712 | MSTJ(101)=MST101 | |
1713 | MSTJ(104)=MST104 | |
1714 | MSTJ(105)=MST105 | |
1715 | MSTJ(107)=MST107 | |
1716 | MSTJ(116)=MST116 | |
1717 | ||
1718 | C...Second part: complete events of various kinds. | |
1719 | C...Common initial values. Loop over initiating conditions. | |
1720 | MSTP(122)=MAX(0,MIN(2,MTEST)) | |
1721 | MDCY(PYCOMP(111),1)=0 | |
1722 | DO 230 IPROC=1,8 | |
1723 | ||
1724 | C...Reset process type, kinematics cuts, and the flags used. | |
1725 | MSEL=0 | |
1726 | DO 190 ISUB=1,500 | |
1727 | MSUB(ISUB)=0 | |
1728 | 190 CONTINUE | |
1729 | CKIN(1)=2D0 | |
1730 | CKIN(3)=0D0 | |
1731 | MSTP(2)=1 | |
1732 | MSTP(11)=0 | |
1733 | MSTP(33)=0 | |
1734 | MSTP(81)=1 | |
1735 | MSTP(82)=1 | |
1736 | MSTP(111)=1 | |
1737 | MSTP(131)=0 | |
1738 | MSTP(133)=0 | |
1739 | PARP(131)=0.01D0 | |
1740 | ||
1741 | C...Prompt photon production at fixed target. | |
1742 | IF(IPROC.EQ.1) THEN | |
1743 | PZSUM=300D0 | |
1744 | PESUM=SQRT(PZSUM**2+PYMASS(211)**2)+PYMASS(2212) | |
1745 | PQSUM=2D0 | |
1746 | MSEL=10 | |
1747 | CKIN(3)=5D0 | |
1748 | CALL PYINIT('FIXT','pi+','p',PZSUM) | |
1749 | ||
1750 | C...QCD processes at ISR energies. | |
1751 | ELSEIF(IPROC.EQ.2) THEN | |
1752 | PESUM=63D0 | |
1753 | PZSUM=0D0 | |
1754 | PQSUM=2D0 | |
1755 | MSEL=1 | |
1756 | CKIN(3)=5D0 | |
1757 | CALL PYINIT('CMS','p','p',PESUM) | |
1758 | ||
1759 | C...W production + multiple interactions at CERN Collider. | |
1760 | ELSEIF(IPROC.EQ.3) THEN | |
1761 | PESUM=630D0 | |
1762 | PZSUM=0D0 | |
1763 | PQSUM=0D0 | |
1764 | MSEL=12 | |
1765 | CKIN(1)=20D0 | |
1766 | MSTP(82)=4 | |
1767 | MSTP(2)=2 | |
1768 | MSTP(33)=3 | |
1769 | CALL PYINIT('CMS','p','pbar',PESUM) | |
1770 | ||
1771 | C...W/Z gauge boson pairs + pileup events at the Tevatron. | |
1772 | ELSEIF(IPROC.EQ.4) THEN | |
1773 | PESUM=1800D0 | |
1774 | PZSUM=0D0 | |
1775 | PQSUM=0D0 | |
1776 | MSUB(22)=1 | |
1777 | MSUB(23)=1 | |
1778 | MSUB(25)=1 | |
1779 | CKIN(1)=200D0 | |
1780 | MSTP(111)=0 | |
1781 | MSTP(131)=1 | |
1782 | MSTP(133)=2 | |
1783 | PARP(131)=0.04D0 | |
1784 | CALL PYINIT('CMS','p','pbar',PESUM) | |
1785 | ||
1786 | C...Higgs production at LHC. | |
1787 | ELSEIF(IPROC.EQ.5) THEN | |
1788 | PESUM=15400D0 | |
1789 | PZSUM=0D0 | |
1790 | PQSUM=2D0 | |
1791 | MSUB(3)=1 | |
1792 | MSUB(102)=1 | |
1793 | MSUB(123)=1 | |
1794 | MSUB(124)=1 | |
1795 | PMAS(25,1)=300D0 | |
1796 | CKIN(1)=200D0 | |
1797 | MSTP(81)=0 | |
1798 | MSTP(111)=0 | |
1799 | CALL PYINIT('CMS','p','p',PESUM) | |
1800 | ||
1801 | C...Z' production at SSC. | |
1802 | ELSEIF(IPROC.EQ.6) THEN | |
1803 | PESUM=40000D0 | |
1804 | PZSUM=0D0 | |
1805 | PQSUM=2D0 | |
1806 | MSEL=21 | |
1807 | PMAS(32,1)=600D0 | |
1808 | CKIN(1)=400D0 | |
1809 | MSTP(81)=0 | |
1810 | MSTP(111)=0 | |
1811 | CALL PYINIT('CMS','p','p',PESUM) | |
1812 | ||
1813 | C...W pair production at 1 TeV e+e- collider. | |
1814 | ELSEIF(IPROC.EQ.7) THEN | |
1815 | PESUM=1000D0 | |
1816 | PZSUM=0D0 | |
1817 | PQSUM=0D0 | |
1818 | MSUB(25)=1 | |
1819 | MSUB(69)=1 | |
1820 | MSTP(11)=1 | |
1821 | CALL PYINIT('CMS','e+','e-',PESUM) | |
1822 | ||
1823 | C...Deep inelastic scattering at a LEP+LHC ep collider. | |
1824 | ELSEIF(IPROC.EQ.8) THEN | |
1825 | P(1,1)=0D0 | |
1826 | P(1,2)=0D0 | |
1827 | P(1,3)=8000D0 | |
1828 | P(2,1)=0D0 | |
1829 | P(2,2)=0D0 | |
1830 | P(2,3)=-80D0 | |
1831 | PESUM=8080D0 | |
1832 | PZSUM=7920D0 | |
1833 | PQSUM=0D0 | |
1834 | MSUB(10)=1 | |
1835 | CKIN(3)=50D0 | |
1836 | MSTP(111)=0 | |
1837 | CALL PYINIT('USER','p','e-',PESUM) | |
1838 | ENDIF | |
1839 | ||
1840 | C...Generate 20 events of each required type. | |
1841 | DO 220 IEV=1,20 | |
1842 | CALL PYEVNT | |
1843 | PESUMM=PESUM | |
1844 | IF(IPROC.EQ.4) PESUMM=MSTI(41)*PESUM | |
1845 | ||
1846 | C...Check conservation of energy/momentum/flavour. | |
1847 | PINI(1)=0D0 | |
1848 | PINI(2)=0D0 | |
1849 | PINI(3)=PZSUM | |
1850 | PINI(4)=PESUMM | |
1851 | PINI(6)=PQSUM | |
1852 | DO 200 J=1,4 | |
1853 | PFIN(J)=PYP(0,J) | |
1854 | 200 CONTINUE | |
1855 | PFIN(6)=PYP(0,6) | |
1856 | MERR=0 | |
1857 | DEVE=ABS(PFIN(4)-PINI(4))+ABS(PFIN(3)-PINI(3)) | |
1858 | DEVT=ABS(PFIN(1)-PINI(1))+ABS(PFIN(2)-PINI(2)) | |
1859 | DEVQ=ABS(PFIN(6)-PINI(6)) | |
1860 | IF(DEVE.GT.2D-3*PESUM.OR.DEVT.GT.MAX(0.01D0,1D-4*PESUM).OR. | |
1861 | & DEVQ.GT.0.1D0) MERR=1 | |
1862 | IF(MERR.NE.0) WRITE(MSTU(11),5000) (PINI(J),J=1,4),PINI(6), | |
1863 | & (PFIN(J),J=1,4),PFIN(6) | |
1864 | ||
1865 | C...Check that all KF codes are known ones, and that partons/particles | |
1866 | C...satisfy energy-momentum-mass relation. | |
1867 | DO 210 I=1,N | |
1868 | IF(K(I,1).GT.20) GOTO 210 | |
1869 | IF(PYCOMP(K(I,2)).EQ.0) THEN | |
1870 | WRITE(MSTU(11),5100) I | |
1871 | MERR=MERR+1 | |
1872 | ENDIF | |
1873 | PD=P(I,4)**2-P(I,1)**2-P(I,2)**2-P(I,3)**2-P(I,5)**2* | |
1874 | & SIGN(1D0,P(I,5)) | |
1875 | IF(ABS(PD).GT.MAX(0.1D0,0.002D0*P(I,4)**2,0.002D0*P(I,5)**2) | |
1876 | & .OR.(P(I,5).GE.0D0.AND.P(I,4).LT.0D0)) THEN | |
1877 | WRITE(MSTU(11),5200) I | |
1878 | MERR=MERR+1 | |
1879 | ENDIF | |
1880 | 210 CONTINUE | |
1881 | ||
1882 | C...Listing of erroneous events, and first event of each type. | |
1883 | IF(MERR.GE.1) NERR=NERR+1 | |
1884 | IF(NERR.GE.10) THEN | |
1885 | WRITE(MSTU(11),6300) | |
1886 | CALL PYLIST(1) | |
1887 | STOP | |
1888 | ENDIF | |
1889 | IF(MTEST.GE.1.AND.(MERR.GE.1.OR.IEV.EQ.1)) THEN | |
1890 | IF(MERR.GE.1) WRITE(MSTU(11),6400) | |
1891 | CALL PYLIST(1) | |
1892 | ENDIF | |
1893 | 220 CONTINUE | |
1894 | ||
1895 | C...List statistics for each process type. | |
1896 | IF(MTEST.GE.1) CALL PYSTAT(1) | |
1897 | 230 CONTINUE | |
1898 | ||
1899 | C...Summarize result of run. | |
1900 | IF(NERR.EQ.0) WRITE(MSTU(11),6500) | |
1901 | IF(NERR.GT.0) WRITE(MSTU(11),6600) NERR | |
1902 | ||
1903 | C...Format statements for output. | |
1904 | 5000 FORMAT(/' Momentum, energy and/or charge were not conserved ', | |
1905 | &'in following event'/' sum of',9X,'px',11X,'py',11X,'pz',11X, | |
1906 | &'E',8X,'charge'/' before',2X,4(1X,F12.5),1X,F8.2/' after',3X, | |
1907 | &4(1X,F12.5),1X,F8.2) | |
1908 | 5100 FORMAT(/5X,'Entry no.',I4,' in following event not known code') | |
1909 | 5200 FORMAT(/5X,'Entry no.',I4,' in following event has faulty ', | |
1910 | &'kinematics') | |
1911 | 6300 FORMAT(/5X,'This is the tenth error experienced! Something is ', | |
1912 | &'wrong.'/5X,'Execution will be stopped after listing of event.') | |
1913 | 6400 FORMAT(5X,'Faulty event follows:') | |
1914 | 6500 FORMAT(//5X,'End result of PYTEST: no errors detected.') | |
1915 | 6600 FORMAT(//5X,'End result of PYTEST:',I2,' errors detected.'/ | |
1916 | &5X,'This should not have happened!') | |
1917 | ||
1918 | RETURN | |
1919 | END | |
1920 | ||
1921 | C********************************************************************* | |
1922 | ||
1923 | C...PYHEPC | |
1924 | C...Converts PYTHIA event record contents to or from | |
1925 | C...the standard event record commonblock. | |
1926 | ||
1927 | SUBROUTINE PYHEPC(MCONV) | |
1928 | ||
1929 | C...Double precision and integer declarations. | |
1930 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
1931 | INTEGER PYK,PYCHGE,PYCOMP | |
1932 | C...Commonblocks. | |
1933 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
1934 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
1935 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
1936 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
1937 | C...HEPEVT commonblock. | |
1938 | PARAMETER (NMXHEP=4000) | |
1939 | COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP), | |
1940 | &JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP) | |
1941 | DOUBLE PRECISION PHEP,VHEP | |
1942 | SAVE /HEPEVT/ | |
1943 | ||
1944 | C...Conversion from PYTHIA to standard, the easy part. | |
1945 | IF(MCONV.EQ.1) THEN | |
1946 | NEVHEP=0 | |
1947 | IF(N.GT.NMXHEP) CALL PYERRM(8, | |
1948 | & '(PYHEPC:) no more space in /HEPEVT/') | |
1949 | NHEP=MIN(N,NMXHEP) | |
1950 | DO 140 I=1,NHEP | |
1951 | ISTHEP(I)=0 | |
1952 | IF(K(I,1).GE.1.AND.K(I,1).LE.10) ISTHEP(I)=1 | |
1953 | IF(K(I,1).GE.11.AND.K(I,1).LE.20) ISTHEP(I)=2 | |
1954 | IF(K(I,1).GE.21.AND.K(I,1).LE.30) ISTHEP(I)=3 | |
1955 | IF(K(I,1).GE.31.AND.K(I,1).LE.100) ISTHEP(I)=K(I,1) | |
1956 | IDHEP(I)=K(I,2) | |
1957 | JMOHEP(1,I)=K(I,3) | |
1958 | JMOHEP(2,I)=0 | |
1959 | IF(K(I,1).NE.3.AND.K(I,1).NE.13.AND.K(I,1).NE.14) THEN | |
1960 | JDAHEP(1,I)=K(I,4) | |
1961 | JDAHEP(2,I)=K(I,5) | |
1962 | ELSE | |
1963 | JDAHEP(1,I)=0 | |
1964 | JDAHEP(2,I)=0 | |
1965 | ENDIF | |
1966 | DO 100 J=1,5 | |
1967 | PHEP(J,I)=P(I,J) | |
1968 | 100 CONTINUE | |
1969 | DO 110 J=1,4 | |
1970 | VHEP(J,I)=V(I,J) | |
1971 | 110 CONTINUE | |
1972 | ||
1973 | C...Check if new event (from pileup). | |
1974 | IF(I.EQ.1) THEN | |
1975 | INEW=1 | |
1976 | ELSE | |
1977 | IF(K(I,1).EQ.21.AND.K(I-1,1).NE.21) INEW=I | |
1978 | ENDIF | |
1979 | ||
1980 | C...Fill in missing mother information. | |
1981 | IF(I.GE.INEW+2.AND.K(I,1).EQ.21.AND.K(I,3).EQ.0) THEN | |
1982 | IMO1=I-2 | |
1983 | IF(I.GE.INEW+3.AND.K(I-1,1).EQ.21.AND.K(I-1,3).EQ.0) | |
1984 | & IMO1=IMO1-1 | |
1985 | JMOHEP(1,I)=IMO1 | |
1986 | JMOHEP(2,I)=IMO1+1 | |
1987 | ELSEIF(K(I,2).GE.91.AND.K(I,2).LE.93) THEN | |
1988 | I1=K(I,3)-1 | |
1989 | 120 I1=I1+1 | |
1990 | IF(I1.GE.I) CALL PYERRM(8, | |
1991 | & '(PYHEPC:) translation of inconsistent event history') | |
1992 | IF(I1.LT.I.AND.K(I1,1).NE.1.AND.K(I1,1).NE.11) GOTO 120 | |
1993 | KC=PYCOMP(K(I1,2)) | |
1994 | IF(I1.LT.I.AND.KC.EQ.0) GOTO 120 | |
1995 | IF(I1.LT.I.AND.KCHG(KC,2).EQ.0) GOTO 120 | |
1996 | JMOHEP(2,I)=I1 | |
1997 | ELSEIF(K(I,2).EQ.94) THEN | |
1998 | NJET=2 | |
1999 | IF(NHEP.GE.I+3.AND.K(I+3,3).LE.I) NJET=3 | |
2000 | IF(NHEP.GE.I+4.AND.K(I+4,3).LE.I) NJET=4 | |
2001 | JMOHEP(2,I)=MOD(K(I+NJET,4)/MSTU(5),MSTU(5)) | |
2002 | IF(JMOHEP(2,I).EQ.JMOHEP(1,I)) JMOHEP(2,I)= | |
2003 | & MOD(K(I+1,4)/MSTU(5),MSTU(5)) | |
2004 | ENDIF | |
2005 | ||
2006 | C...Fill in missing daughter information. | |
2007 | IF(K(I,2).EQ.94.AND.MSTU(16).NE.2) THEN | |
2008 | DO 130 I1=JDAHEP(1,I),JDAHEP(2,I) | |
2009 | I2=MOD(K(I1,4)/MSTU(5),MSTU(5)) | |
2010 | JDAHEP(1,I2)=I | |
2011 | 130 CONTINUE | |
2012 | ENDIF | |
2013 | IF(K(I,2).GE.91.AND.K(I,2).LE.94) GOTO 140 | |
2014 | I1=JMOHEP(1,I) | |
2015 | IF(I1.LE.0.OR.I1.GT.NHEP) GOTO 140 | |
2016 | IF(K(I1,1).NE.13.AND.K(I1,1).NE.14) GOTO 140 | |
2017 | IF(JDAHEP(1,I1).EQ.0) THEN | |
2018 | JDAHEP(1,I1)=I | |
2019 | ELSE | |
2020 | JDAHEP(2,I1)=I | |
2021 | ENDIF | |
2022 | 140 CONTINUE | |
2023 | DO 150 I=1,NHEP | |
2024 | IF(K(I,1).NE.13.AND.K(I,1).NE.14) GOTO 150 | |
2025 | IF(JDAHEP(2,I).EQ.0) JDAHEP(2,I)=JDAHEP(1,I) | |
2026 | 150 CONTINUE | |
2027 | ||
2028 | C...Conversion from standard to PYTHIA, the easy part. | |
2029 | ELSE | |
2030 | IF(NHEP.GT.MSTU(4)) CALL PYERRM(8, | |
2031 | & '(PYHEPC:) no more space in /PYJETS/') | |
2032 | N=MIN(NHEP,MSTU(4)) | |
2033 | NKQ=0 | |
2034 | KQSUM=0 | |
2035 | DO 180 I=1,N | |
2036 | K(I,1)=0 | |
2037 | IF(ISTHEP(I).EQ.1) K(I,1)=1 | |
2038 | IF(ISTHEP(I).EQ.2) K(I,1)=11 | |
2039 | IF(ISTHEP(I).EQ.3) K(I,1)=21 | |
2040 | K(I,2)=IDHEP(I) | |
2041 | K(I,3)=JMOHEP(1,I) | |
2042 | K(I,4)=JDAHEP(1,I) | |
2043 | K(I,5)=JDAHEP(2,I) | |
2044 | DO 160 J=1,5 | |
2045 | P(I,J)=PHEP(J,I) | |
2046 | 160 CONTINUE | |
2047 | DO 170 J=1,4 | |
2048 | V(I,J)=VHEP(J,I) | |
2049 | 170 CONTINUE | |
2050 | V(I,5)=0D0 | |
2051 | IF(ISTHEP(I).EQ.2.AND.PHEP(4,I).GT.PHEP(5,I)) THEN | |
2052 | I1=JDAHEP(1,I) | |
2053 | IF(I1.GT.0.AND.I1.LE.NHEP) V(I,5)=(VHEP(4,I1)-VHEP(4,I))* | |
2054 | & PHEP(5,I)/PHEP(4,I) | |
2055 | ENDIF | |
2056 | ||
2057 | C...Fill in missing information on colour connection in jet systems. | |
2058 | IF(ISTHEP(I).EQ.1) THEN | |
2059 | KC=PYCOMP(K(I,2)) | |
2060 | KQ=0 | |
2061 | IF(KC.NE.0) KQ=KCHG(KC,2)*ISIGN(1,K(I,2)) | |
2062 | IF(KQ.NE.0) NKQ=NKQ+1 | |
2063 | IF(KQ.NE.2) KQSUM=KQSUM+KQ | |
2064 | IF(KQ.NE.0.AND.KQSUM.NE.0) THEN | |
2065 | K(I,1)=2 | |
2066 | ELSEIF(KQ.EQ.2.AND.I.LT.N) THEN | |
2067 | IF(K(I+1,2).EQ.21) K(I,1)=2 | |
2068 | ENDIF | |
2069 | ENDIF | |
2070 | 180 CONTINUE | |
2071 | IF(NKQ.EQ.1.OR.KQSUM.NE.0) CALL PYERRM(8, | |
2072 | & '(PYHEPC:) input parton configuration not colour singlet') | |
2073 | ENDIF | |
2074 | ||
2075 | END | |
2076 | ||
2077 | C********************************************************************* | |
2078 | ||
2079 | C...PYINIT | |
2080 | C...Initializes the generation procedure; finds maxima of the | |
2081 | C...differential cross-sections to be used for weighting. | |
2082 | ||
2083 | SUBROUTINE PYINIT(FRAME,BEAM,TARGET,WIN) | |
2084 | ||
2085 | C...Double precision and integer declarations. | |
2086 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
2087 | INTEGER PYK,PYCHGE,PYCOMP | |
2088 | C...Commonblocks. | |
2089 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
2090 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
2091 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
2092 | COMMON/PYDAT4/CHAF(500,2) | |
2093 | CHARACTER CHAF*16 | |
2094 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
2095 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
2096 | COMMON/PYINT1/MINT(400),VINT(400) | |
2097 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
2098 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
2099 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYDAT4/,/PYSUBS/,/PYPARS/, | |
2100 | &/PYINT1/,/PYINT2/,/PYINT5/ | |
2101 | C...Local arrays and character variables. | |
2102 | DIMENSION ALAMIN(20),NFIN(20) | |
2103 | CHARACTER*(*) FRAME,BEAM,TARGET | |
2104 | CHARACTER CHFRAM*8,CHBEAM*8,CHTARG*8,CHLH(2)*6 | |
2105 | ||
2106 | C...Interface to PDFLIB. | |
2107 | COMMON/W50512/QCDL4,QCDL5 | |
2108 | SAVE /W50512/ | |
2109 | DOUBLE PRECISION VALUE(20),QCDL4,QCDL5 | |
2110 | CHARACTER*20 PARM(20) | |
2111 | DATA VALUE/20*0D0/,PARM/20*' '/ | |
2112 | ||
2113 | C...Data:Lambda and n_f values for parton distributions; months. | |
2114 | DATA ALAMIN/0.177D0,0.239D0,0.247D0,0.2322D0,0.248D0,0.248D0, | |
2115 | &14*0.2D0/,NFIN/20*4/ | |
2116 | DATA CHLH/'lepton','hadron'/ | |
2117 | ||
2118 | C...Reset MINT and VINT arrays. Write headers. | |
2119 | DO 100 J=1,400 | |
2120 | MINT(J)=0 | |
2121 | VINT(J)=0D0 | |
2122 | 100 CONTINUE | |
2123 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
2124 | IF(MSTP(122).GE.1) WRITE(MSTU(11),5100) | |
2125 | ||
2126 | C...Maximum 4 generations; set maximum number of allowed flavours. | |
2127 | MSTP(1)=MIN(4,MSTP(1)) | |
2128 | MSTU(114)=MIN(MSTU(114),2*MSTP(1)) | |
2129 | MSTP(58)=MIN(MSTP(58),2*MSTP(1)) | |
2130 | ||
2131 | C...Sum up Cabibbo-Kobayashi-Maskawa factors for each quark/lepton. | |
2132 | DO 120 I=-20,20 | |
2133 | VINT(180+I)=0D0 | |
2134 | IA=IABS(I) | |
2135 | IF(IA.GE.1.AND.IA.LE.2*MSTP(1)) THEN | |
2136 | DO 110 J=1,MSTP(1) | |
2137 | IB=2*J-1+MOD(IA,2) | |
2138 | IF(IB.GE.6.AND.MSTP(9).EQ.0) GOTO 110 | |
2139 | IPM=(5-ISIGN(1,I))/2 | |
2140 | IDC=J+MDCY(IA,2)+2 | |
2141 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.IPM) VINT(180+I)= | |
2142 | & VINT(180+I)+VCKM((IA+1)/2,(IB+1)/2) | |
2143 | 110 CONTINUE | |
2144 | ELSEIF(IA.GE.11.AND.IA.LE.10+2*MSTP(1)) THEN | |
2145 | VINT(180+I)=1D0 | |
2146 | ENDIF | |
2147 | 120 CONTINUE | |
2148 | ||
2149 | C...Initialize parton distributions: PDFLIB. | |
2150 | IF(MSTP(52).EQ.2) THEN | |
2151 | PARM(1)='NPTYPE' | |
2152 | VALUE(1)=1 | |
2153 | PARM(2)='NGROUP' | |
2154 | VALUE(2)=MSTP(51)/1000 | |
2155 | PARM(3)='NSET' | |
2156 | VALUE(3)=MOD(MSTP(51),1000) | |
2157 | PARM(4)='TMAS' | |
2158 | VALUE(4)=PMAS(6,1) | |
2159 | CALL PDFSET(PARM,VALUE) | |
2160 | MINT(93)=1000000+MSTP(51) | |
2161 | ENDIF | |
2162 | ||
2163 | C...Choose Lambda value to use in alpha-strong. | |
2164 | MSTU(111)=MSTP(2) | |
2165 | IF(MSTP(3).GE.2) THEN | |
2166 | ALAM=0.2D0 | |
2167 | NF=4 | |
2168 | IF(MSTP(52).EQ.1.AND.MSTP(51).GE.1.AND.MSTP(51).LE.10) THEN | |
2169 | ALAM=ALAMIN(MSTP(51)) | |
2170 | NF=NFIN(MSTP(51)) | |
2171 | ELSEIF(MSTP(52).EQ.2) THEN | |
2172 | ALAM=QCDL4 | |
2173 | NF=4 | |
2174 | ENDIF | |
2175 | PARP(1)=ALAM | |
2176 | PARP(61)=ALAM | |
2177 | PARP(72)=ALAM | |
2178 | PARU(112)=ALAM | |
2179 | MSTU(112)=NF | |
2180 | IF(MSTP(3).EQ.3) PARJ(81)=ALAM | |
2181 | ENDIF | |
2182 | ||
2183 | C...Initialize the SUSY generation: couplings, masses, | |
2184 | C...decay modes, branching ratios, and so on. | |
2185 | CALL PYMSIN | |
2186 | ||
2187 | C...Initialize widths and partial widths for resonances. | |
2188 | CALL PYINRE | |
2189 | C...Set Z0 mass and width for e+e- routines. | |
2190 | PARJ(123)=PMAS(23,1) | |
2191 | PARJ(124)=PMAS(23,2) | |
2192 | ||
2193 | C...Identify beam and target particles and frame of process. | |
2194 | CHFRAM=FRAME//' ' | |
2195 | CHBEAM=BEAM//' ' | |
2196 | CHTARG=TARGET//' ' | |
2197 | CALL PYINBM(CHFRAM,CHBEAM,CHTARG,WIN) | |
2198 | IF(MINT(65).EQ.1) GOTO 170 | |
2199 | ||
2200 | C...For gamma-p or gamma-gamma allow many (3 or 6) alternatives. | |
2201 | C...For e-gamma allow 2 alternatives. | |
2202 | MINT(121)=1 | |
2203 | MINT(123)=MSTP(14) | |
2204 | IF(MSTP(14).EQ.10.AND.(MSEL.EQ.1.OR.MSEL.EQ.2)) THEN | |
2205 | IF((MINT(11).EQ.22.OR.MINT(12).EQ.22).AND. | |
2206 | & (IABS(MINT(11)).GE.28.OR.IABS(MINT(12)).GE.28)) MINT(121)=3 | |
2207 | IF(MINT(11).EQ.22.AND.MINT(12).EQ.22) MINT(121)=6 | |
2208 | IF((MINT(11).EQ.22.OR.MINT(12).EQ.22).AND. | |
2209 | & (IABS(MINT(11)).EQ.11.OR.IABS(MINT(12)).EQ.11)) MINT(121)=2 | |
2210 | ENDIF | |
2211 | ||
2212 | C...Set up kinematics of process. | |
2213 | CALL PYINKI(0) | |
2214 | ||
2215 | C...Precalculate flavour selection weights | |
2216 | CALL PYKFIN | |
2217 | ||
2218 | C...Loop over gamma-p or gamma-gamma alternatives. | |
2219 | DO 160 IGA=1,MINT(121) | |
2220 | MINT(122)=IGA | |
2221 | ||
2222 | C...Select partonic subprocesses to be included in the simulation. | |
2223 | CALL PYINPR | |
2224 | ||
2225 | C...Count number of subprocesses on. | |
2226 | MINT(48)=0 | |
2227 | DO 130 ISUB=1,500 | |
2228 | IF(MINT(50).EQ.0.AND.ISUB.GE.91.AND.ISUB.LE.96.AND. | |
2229 | & MSUB(ISUB).EQ.1) THEN | |
2230 | WRITE(MSTU(11),5200) ISUB,CHLH(MINT(41)),CHLH(MINT(42)) | |
2231 | STOP | |
2232 | ELSEIF(MSUB(ISUB).EQ.1.AND.ISET(ISUB).EQ.-1) THEN | |
2233 | WRITE(MSTU(11),5300) ISUB | |
2234 | STOP | |
2235 | ELSEIF(MSUB(ISUB).EQ.1.AND.ISET(ISUB).LE.-2) THEN | |
2236 | WRITE(MSTU(11),5400) ISUB | |
2237 | STOP | |
2238 | ELSEIF(MSUB(ISUB).EQ.1) THEN | |
2239 | MINT(48)=MINT(48)+1 | |
2240 | ENDIF | |
2241 | 130 CONTINUE | |
2242 | IF(MINT(48).EQ.0) THEN | |
2243 | WRITE(MSTU(11),5500) | |
2244 | STOP | |
2245 | ENDIF | |
2246 | MINT(49)=MINT(48)-MSUB(91)-MSUB(92)-MSUB(93)-MSUB(94) | |
2247 | ||
2248 | C...Reset variables for cross-section calculation. | |
2249 | DO 150 I=0,500 | |
2250 | DO 140 J=1,3 | |
2251 | NGEN(I,J)=0 | |
2252 | XSEC(I,J)=0D0 | |
2253 | 140 CONTINUE | |
2254 | 150 CONTINUE | |
2255 | ||
2256 | C...Find parametrized total cross-sections. | |
2257 | CALL PYXTOT | |
2258 | ||
2259 | C...Maxima of differential cross-sections. | |
2260 | IF(MSTP(121).LE.1) CALL PYMAXI | |
2261 | ||
2262 | C...Initialize possibility of pileup events. | |
2263 | IF(MINT(121).GT.1) MSTP(131)=0 | |
2264 | IF(MSTP(131).NE.0) CALL PYPILE(1) | |
2265 | ||
2266 | C...Initialize multiple interactions with variable impact parameter. | |
2267 | IF(MINT(50).EQ.1.AND.(MINT(49).NE.0.OR.MSTP(131).NE.0).AND. | |
2268 | & MSTP(82).GE.2) CALL PYMULT(1) | |
2269 | ||
2270 | C...Save results for gamma-p and gamma-gamma alternatives. | |
2271 | IF(MINT(121).GT.1) CALL PYSAVE(1,IGA) | |
2272 | 160 CONTINUE | |
2273 | ||
2274 | C...Initialization finished. | |
2275 | 170 IF(MSTP(122).GE.1) WRITE(MSTU(11),5600) | |
2276 | ||
2277 | C...Formats for initialization information. | |
2278 | 5100 FORMAT('1',18('*'),1X,'PYINIT: initialization of PYTHIA ', | |
2279 | &'routines',1X,17('*')) | |
2280 | 5200 FORMAT(1X,'Error: process number ',I3,' not meaningful for ',A6, | |
2281 | &'-',A6,' interactions.'/1X,'Execution stopped!') | |
2282 | 5300 FORMAT(1X,'Error: requested subprocess',I4,' not implemented.'/ | |
2283 | &1X,'Execution stopped!') | |
2284 | 5400 FORMAT(1X,'Error: requested subprocess',I4,' not existing.'/ | |
2285 | &1X,'Execution stopped!') | |
2286 | 5500 FORMAT(1X,'Error: no subprocess switched on.'/ | |
2287 | &1X,'Execution stopped.') | |
2288 | 5600 FORMAT(/1X,22('*'),1X,'PYINIT: initialization completed',1X, | |
2289 | &22('*')) | |
2290 | ||
2291 | RETURN | |
2292 | END | |
2293 | ||
2294 | C********************************************************************* | |
2295 | ||
2296 | C...PYEVNT | |
2297 | C...Administers the generation of a high-pT event via calls to | |
2298 | C...a number of subroutines. | |
2299 | ||
2300 | SUBROUTINE PYEVNT | |
2301 | ||
2302 | C...Double precision and integer declarations. | |
2303 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
2304 | INTEGER PYK,PYCHGE,PYCOMP | |
2305 | C...Commonblocks. | |
2306 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
2307 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
2308 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
2309 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
2310 | COMMON/PYINT1/MINT(400),VINT(400) | |
2311 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
2312 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
2313 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
2314 | COMMON/PYUPPR/NUP,KUP(20,7),NFUP,IFUP(10,2),PUP(20,5),Q2UP(0:10) | |
2315 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/,/PYINT2/, | |
2316 | &/PYINT4/,/PYINT5/,/PYUPPR/ | |
2317 | C...Local array. | |
2318 | DIMENSION VTX(4) | |
2319 | ||
2320 | C...Initial values for some counters. | |
2321 | N=0 | |
2322 | MINT(5)=MINT(5)+1 | |
2323 | MINT(7)=0 | |
2324 | MINT(8)=0 | |
2325 | MINT(83)=0 | |
2326 | MINT(84)=MSTP(126) | |
2327 | MSTU(24)=0 | |
2328 | MSTU70=0 | |
2329 | MSTJ14=MSTJ(14) | |
2330 | ||
2331 | C...If variable energies: redo incoming kinematics and cross-section. | |
2332 | MSTI(61)=0 | |
2333 | IF(MSTP(171).EQ.1) THEN | |
2334 | CALL PYINKI(1) | |
2335 | IF(MSTI(61).EQ.1) THEN | |
2336 | MINT(5)=MINT(5)-1 | |
2337 | RETURN | |
2338 | ENDIF | |
2339 | IF(MINT(121).GT.1) CALL PYSAVE(3,1) | |
2340 | CALL PYXTOT | |
2341 | ENDIF | |
2342 | ||
2343 | C...Loop over number of pileup events; check space left. | |
2344 | IF(MSTP(131).LE.0) THEN | |
2345 | NPILE=1 | |
2346 | ELSE | |
2347 | CALL PYPILE(2) | |
2348 | NPILE=MINT(81) | |
2349 | ENDIF | |
2350 | DO 260 IPILE=1,NPILE | |
2351 | IF(MINT(84)+100.GE.MSTU(4)) THEN | |
2352 | CALL PYERRM(11, | |
2353 | & '(PYEVNT:) no more space in PYJETS for pileup events') | |
2354 | IF(MSTU(21).GE.1) GOTO 270 | |
2355 | ENDIF | |
2356 | MINT(82)=IPILE | |
2357 | ||
2358 | C...Generate variables of hard scattering. | |
2359 | MINT(51)=0 | |
2360 | MSTI(52)=0 | |
2361 | 100 CONTINUE | |
2362 | IF(MINT(51).NE.0.OR.MSTU(24).NE.0) MSTI(52)=MSTI(52)+1 | |
2363 | MINT(31)=0 | |
2364 | MINT(51)=0 | |
2365 | MINT(57)=0 | |
2366 | CALL PYRAND | |
2367 | IF(MSTI(61).EQ.1) THEN | |
2368 | MINT(5)=MINT(5)-1 | |
2369 | RETURN | |
2370 | ENDIF | |
2371 | IF(MINT(51).EQ.2) RETURN | |
2372 | ISUB=MINT(1) | |
2373 | IF(MSTP(111).EQ.-1) GOTO 250 | |
2374 | ||
2375 | IF(ISUB.LE.90.OR.ISUB.GE.95) THEN | |
2376 | C...Hard scattering (including low-pT): | |
2377 | C...reconstruct kinematics and colour flow of hard scattering. | |
2378 | 110 MINT(51)=0 | |
2379 | CALL PYSCAT | |
2380 | IF(MINT(51).EQ.1) GOTO 100 | |
2381 | IPU1=MINT(84)+1 | |
2382 | IPU2=MINT(84)+2 | |
2383 | IF(ISUB.EQ.95) GOTO 130 | |
2384 | ||
2385 | C...Showering of initial state partons (optional). | |
2386 | ALAMSV=PARJ(81) | |
2387 | PARJ(81)=PARP(72) | |
2388 | IF(MSTP(61).GE.1.AND.MINT(47).GE.2) CALL PYSSPA(IPU1,IPU2) | |
2389 | PARJ(81)=ALAMSV | |
2390 | IF(MINT(51).EQ.1) GOTO 100 | |
2391 | ||
2392 | C...Showering of final state partons (optional). | |
2393 | ALAMSV=PARJ(81) | |
2394 | PARJ(81)=PARP(72) | |
2395 | IF(MSTP(71).GE.1.AND.ISET(ISUB).GE.2.AND.ISET(ISUB).LE.10) | |
2396 | & THEN | |
2397 | IPU3=MINT(84)+3 | |
2398 | IPU4=MINT(84)+4 | |
2399 | IF(ISET(ISUB).EQ.5) IPU4=-3 | |
2400 | QMAX=VINT(55) | |
2401 | IF(ISET(ISUB).EQ.2) QMAX=SQRT(PARP(71))*VINT(55) | |
2402 | CALL PYSHOW(IPU3,IPU4,QMAX) | |
2403 | ELSEIF(MSTP(71).GE.1.AND.ISET(ISUB).EQ.11.AND.NFUP.GE.1) THEN | |
2404 | DO 120 IUP=1,NFUP | |
2405 | IPU3=IFUP(IUP,1)+MINT(84) | |
2406 | IPU4=IFUP(IUP,2)+MINT(84) | |
2407 | QMAX=SQRT(MAX(0D0,Q2UP(IUP))) | |
2408 | CALL PYSHOW(IPU3,IPU4,QMAX) | |
2409 | 120 CONTINUE | |
2410 | ENDIF | |
2411 | PARJ(81)=ALAMSV | |
2412 | ||
2413 | C...Decay of final state resonances. | |
2414 | MINT(32)=0 | |
2415 | IF(MSTP(41).GE.1.AND.ISET(ISUB).LE.10) CALL PYRESD(0) | |
2416 | IF(MINT(51).EQ.1) GOTO 100 | |
2417 | MINT(52)=N | |
2418 | ||
2419 | C...Multiple interactions. | |
2420 | IF(MSTP(81).GE.1.AND.MINT(50).EQ.1) CALL PYMULT(6) | |
2421 | MINT(53)=N | |
2422 | ||
2423 | C...Hadron remnants and primordial kT. | |
2424 | 130 CALL PYREMN(IPU1,IPU2) | |
2425 | IF(MINT(51).EQ.1.AND.MINT(57).GE.1.AND.MINT(57).LE.5) GOTO 110 | |
2426 | IF(MINT(51).EQ.1) GOTO 100 | |
2427 | ||
2428 | ELSE | |
2429 | C...Diffractive and elastic scattering. | |
2430 | CALL PYDIFF | |
2431 | ENDIF | |
2432 | ||
2433 | C...Check that no odd resonance left undecayed. | |
2434 | IF(MSTP(111).GE.1) THEN | |
2435 | NFIX=N | |
2436 | DO 140 I=MINT(84)+1,NFIX | |
2437 | IF(K(I,1).GE.1.AND.K(I,1).LE.10.AND.K(I,2).NE.21.AND. | |
2438 | & K(I,2).NE.22) THEN | |
2439 | IF(MWID(PYCOMP(K(I,2))).NE.0) THEN | |
2440 | CALL PYRESD(I) | |
2441 | IF(MINT(51).EQ.1) GOTO 100 | |
2442 | ENDIF | |
2443 | ENDIF | |
2444 | 140 CONTINUE | |
2445 | ENDIF | |
2446 | ||
2447 | C...Recalculate energies from momenta and masses (if desired). | |
2448 | IF(MSTP(113).GE.1) THEN | |
2449 | DO 150 I=MINT(83)+1,N | |
2450 | IF(K(I,1).GT.0.AND.K(I,1).LE.10) P(I,4)=SQRT(P(I,1)**2+ | |
2451 | & P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
2452 | 150 CONTINUE | |
2453 | NRECAL=N | |
2454 | ENDIF | |
2455 | ||
2456 | C...Rearrange partons along strings, check invariant mass cuts. | |
2457 | MSTU(28)=0 | |
2458 | IF(MSTP(111).LE.0) MSTJ(14)=-1 | |
2459 | CALL PYPREP(MINT(84)+1) | |
2460 | MSTJ(14)=MSTJ14 | |
2461 | IF(MSTP(112).EQ.1.AND.MSTU(28).EQ.3) GOTO 100 | |
2462 | IF(MSTP(125).EQ.0.OR.MSTP(125).EQ.1) THEN | |
2463 | DO 180 I=MINT(84)+1,N | |
2464 | IF(K(I,2).EQ.94) THEN | |
2465 | DO 170 I1=I+1,MIN(N,I+3) | |
2466 | IF(K(I1,3).EQ.I) THEN | |
2467 | K(I1,3)=MOD(K(I1,4)/MSTU(5),MSTU(5)) | |
2468 | IF(K(I1,3).EQ.0) THEN | |
2469 | DO 160 II=MINT(84)+1,I-1 | |
2470 | IF(K(II,2).EQ.K(I1,2)) THEN | |
2471 | IF(MOD(K(II,4),MSTU(5)).EQ.I1.OR. | |
2472 | & MOD(K(II,5),MSTU(5)).EQ.I1) K(I1,3)=II | |
2473 | ENDIF | |
2474 | 160 CONTINUE | |
2475 | IF(K(I+1,3).EQ.0) K(I+1,3)=K(I,3) | |
2476 | ENDIF | |
2477 | ENDIF | |
2478 | 170 CONTINUE | |
2479 | ENDIF | |
2480 | 180 CONTINUE | |
2481 | CALL PYEDIT(12) | |
2482 | CALL PYEDIT(14) | |
2483 | IF(MSTP(125).EQ.0) CALL PYEDIT(15) | |
2484 | IF(MSTP(125).EQ.0) MINT(4)=0 | |
2485 | DO 200 I=MINT(83)+1,N | |
2486 | IF(K(I,1).EQ.11.AND.K(I,4).EQ.0.AND.K(I,5).EQ.0) THEN | |
2487 | DO 190 I1=I+1,N | |
2488 | IF(K(I1,3).EQ.I.AND.K(I,4).EQ.0) K(I,4)=I1 | |
2489 | IF(K(I1,3).EQ.I) K(I,5)=I1 | |
2490 | 190 CONTINUE | |
2491 | ENDIF | |
2492 | 200 CONTINUE | |
2493 | ENDIF | |
2494 | ||
2495 | C...Introduce separators between sections in PYLIST event listing. | |
2496 | IF(IPILE.EQ.1.AND.MSTP(125).LE.0) THEN | |
2497 | MSTU70=1 | |
2498 | MSTU(71)=N | |
2499 | ELSEIF(IPILE.EQ.1) THEN | |
2500 | MSTU70=3 | |
2501 | MSTU(71)=2 | |
2502 | MSTU(72)=MINT(4) | |
2503 | MSTU(73)=N | |
2504 | ENDIF | |
2505 | ||
2506 | C...Go back to lab frame (needed for vertices, also in fragmentation). | |
2507 | CALL PYFRAM(1) | |
2508 | ||
2509 | C...Set nonvanishing production vertex (optional). | |
2510 | IF(MSTP(151).EQ.1) THEN | |
2511 | DO 210 J=1,4 | |
2512 | VTX(J)=PARP(150+J)*SQRT(-2D0*LOG(MAX(1D-10,PYR(0))))* | |
2513 | & SIN(PARU(2)*PYR(0)) | |
2514 | 210 CONTINUE | |
2515 | DO 230 I=MINT(83)+1,N | |
2516 | DO 220 J=1,4 | |
2517 | V(I,J)=V(I,J)+VTX(J) | |
2518 | 220 CONTINUE | |
2519 | 230 CONTINUE | |
2520 | ENDIF | |
2521 | ||
2522 | C...Perform hadronization (if desired). | |
2523 | IF(MSTP(111).GE.1) THEN | |
2524 | CALL PYEXEC | |
2525 | IF(MSTU(24).NE.0) GOTO 100 | |
2526 | ENDIF | |
2527 | IF(MSTP(113).GE.1) THEN | |
2528 | DO 240 I=NRECAL,N | |
2529 | IF(P(I,5).GT.0D0) P(I,4)=SQRT(P(I,1)**2+ | |
2530 | & P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
2531 | 240 CONTINUE | |
2532 | ENDIF | |
2533 | IF(MSTP(125).EQ.0.OR.MSTP(125).EQ.1) CALL PYEDIT(14) | |
2534 | ||
2535 | C...Store event information and calculate Monte Carlo estimates of | |
2536 | C...subprocess cross-sections. | |
2537 | 250 IF(IPILE.EQ.1) CALL PYDOCU | |
2538 | ||
2539 | C...Set counters for current pileup event and loop to next one. | |
2540 | MSTI(41)=IPILE | |
2541 | IF(IPILE.GE.2.AND.IPILE.LE.10) MSTI(40+IPILE)=ISUB | |
2542 | IF(MSTU70.LT.10) THEN | |
2543 | MSTU70=MSTU70+1 | |
2544 | MSTU(70+MSTU70)=N | |
2545 | ENDIF | |
2546 | MINT(83)=N | |
2547 | MINT(84)=N+MSTP(126) | |
2548 | IF(IPILE.LT.NPILE) CALL PYFRAM(2) | |
2549 | 260 CONTINUE | |
2550 | ||
2551 | C...Generic information on pileup events. Reconstruct missing history. | |
2552 | IF(MSTP(131).EQ.1.AND.MSTP(133).GE.1) THEN | |
2553 | PARI(91)=VINT(132) | |
2554 | PARI(92)=VINT(133) | |
2555 | PARI(93)=VINT(134) | |
2556 | IF(MSTP(133).GE.2) PARI(93)=PARI(93)*XSEC(0,3)/VINT(131) | |
2557 | ENDIF | |
2558 | CALL PYEDIT(16) | |
2559 | ||
2560 | C...Transform to the desired coordinate frame. | |
2561 | 270 CALL PYFRAM(MSTP(124)) | |
2562 | MSTU(70)=MSTU70 | |
2563 | PARU(21)=VINT(1) | |
2564 | ||
2565 | RETURN | |
2566 | END | |
2567 | ||
2568 | C*********************************************************************** | |
2569 | ||
2570 | C...PYSTAT | |
2571 | C...Prints out information about cross-sections, decay widths, branching | |
2572 | C...ratios, kinematical limits, status codes and parameter values. | |
2573 | ||
2574 | SUBROUTINE PYSTAT(MSTAT) | |
2575 | ||
2576 | C...Double precision and integer declarations. | |
2577 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
2578 | INTEGER PYK,PYCHGE,PYCOMP | |
2579 | C...Parameter statement to help give large particle numbers. | |
2580 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
2581 | C...Commonblocks. | |
2582 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
2583 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
2584 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
2585 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
2586 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
2587 | COMMON/PYINT1/MINT(400),VINT(400) | |
2588 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
2589 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
2590 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
2591 | COMMON/PYINT6/PROC(0:500) | |
2592 | CHARACTER PROC*28 | |
2593 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
2594 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
2595 | &/PYINT2/,/PYINT4/,/PYINT5/,/PYINT6/,/PYMSSM/ | |
2596 | C...Local arrays, character variables and data. | |
2597 | DIMENSION WDTP(0:200),WDTE(0:200,0:5) | |
2598 | CHARACTER PROGA(6)*28,CHAU*16,CHKF*16,CHD1*16,CHD2*16,CHD3*16, | |
2599 | &CHIN(2)*12,STATE(-1:5)*4,CHKIN(21)*18,DISGA(2)*28 | |
2600 | DATA PROGA/ | |
2601 | &'VMD/hadron * VMD ','VMD/hadron * direct ', | |
2602 | &'VMD/hadron * anomalous ','direct * direct ', | |
2603 | &'direct * anomalous ','anomalous * anomalous '/ | |
2604 | DATA DISGA/'e * VMD','e * anomalous'/ | |
2605 | DATA STATE/'----','off ','on ','on/+','on/-','on/1','on/2'/, | |
2606 | &CHKIN/' m_hard (GeV/c^2) ',' p_T_hard (GeV/c) ', | |
2607 | &'m_finite (GeV/c^2)',' y*_subsystem ',' y*_large ', | |
2608 | &' y*_small ',' eta*_large ',' eta*_small ', | |
2609 | &'cos(theta*)_large ','cos(theta*)_small ',' x_1 ', | |
2610 | &' x_2 ',' x_F ',' cos(theta_hard) ', | |
2611 | &'m''_hard (GeV/c^2) ',' tau ',' y* ', | |
2612 | &'cos(theta_hard^-) ','cos(theta_hard^+) ',' x_T^2 ', | |
2613 | &' tau'' '/ | |
2614 | ||
2615 | C...Cross-sections. | |
2616 | IF(MSTAT.LE.1) THEN | |
2617 | IF(MINT(121).GT.1) CALL PYSAVE(5,0) | |
2618 | WRITE(MSTU(11),5000) | |
2619 | WRITE(MSTU(11),5100) | |
2620 | WRITE(MSTU(11),5200) 0,PROC(0),NGEN(0,3),NGEN(0,1),XSEC(0,3) | |
2621 | DO 100 I=1,500 | |
2622 | IF(MSUB(I).NE.1) GOTO 100 | |
2623 | WRITE(MSTU(11),5200) I,PROC(I),NGEN(I,3),NGEN(I,1),XSEC(I,3) | |
2624 | 100 CONTINUE | |
2625 | IF(MINT(121).GT.1) THEN | |
2626 | WRITE(MSTU(11),5300) | |
2627 | DO 110 IGA=1,MINT(121) | |
2628 | CALL PYSAVE(3,IGA) | |
2629 | IF(MINT(121).EQ.2) THEN | |
2630 | WRITE(MSTU(11),5200) IGA,DISGA(IGA),NGEN(0,3),NGEN(0,1), | |
2631 | & XSEC(0,3) | |
2632 | ELSE | |
2633 | WRITE(MSTU(11),5200) IGA,PROGA(IGA),NGEN(0,3),NGEN(0,1), | |
2634 | & XSEC(0,3) | |
2635 | ENDIF | |
2636 | 110 CONTINUE | |
2637 | CALL PYSAVE(5,0) | |
2638 | ENDIF | |
2639 | WRITE(MSTU(11),5400) 1D0-DBLE(NGEN(0,3))/ | |
2640 | & MAX(1D0,DBLE(NGEN(0,2))) | |
2641 | ||
2642 | C...Decay widths and branching ratios. | |
2643 | ELSEIF(MSTAT.EQ.2) THEN | |
2644 | WRITE(MSTU(11),5500) | |
2645 | WRITE(MSTU(11),5600) | |
2646 | DO 140 KC=1,500 | |
2647 | KF=KCHG(KC,4) | |
2648 | CALL PYNAME(KF,CHKF) | |
2649 | IOFF=0 | |
2650 | IF(KC.LE.22) THEN | |
2651 | IF(KC.GT.2*MSTP(1).AND.KC.LE.10) GOTO 140 | |
2652 | IF(KC.GT.10+2*MSTP(1).AND.KC.LE.20) GOTO 140 | |
2653 | IF(KC.LE.5.OR.(KC.GE.11.AND.KC.LE.16)) IOFF=1 | |
2654 | IF(KC.EQ.18.AND.PMAS(18,1).LT.1D0) IOFF=1 | |
2655 | IF(KC.EQ.21.OR.KC.EQ.22) IOFF=1 | |
2656 | ELSE | |
2657 | IF(MWID(KC).LE.0) GOTO 140 | |
2658 | IF(IMSS(1).LE.0.AND.(KF/KSUSY1.EQ.1.OR. | |
2659 | & KF/KSUSY1.EQ.2)) GOTO 140 | |
2660 | ENDIF | |
2661 | C...Off-shell branchings. | |
2662 | IF(IOFF.EQ.1) THEN | |
2663 | NGP=0 | |
2664 | IF(KC.LE.20) NGP=(MOD(KC,10)+1)/2 | |
2665 | IF(NGP.LE.MSTP(1)) WRITE(MSTU(11),5700) KF,CHKF(1:10), | |
2666 | & PMAS(KC,1),0D0,0D0,STATE(MDCY(KC,1)),0D0 | |
2667 | DO 120 J=1,MDCY(KC,3) | |
2668 | IDC=J+MDCY(KC,2)-1 | |
2669 | NGP1=0 | |
2670 | IF(IABS(KFDP(IDC,1)).LE.20) NGP1= | |
2671 | & (MOD(IABS(KFDP(IDC,1)),10)+1)/2 | |
2672 | NGP2=0 | |
2673 | IF(IABS(KFDP(IDC,2)).LE.20) NGP2= | |
2674 | & (MOD(IABS(KFDP(IDC,2)),10)+1)/2 | |
2675 | CALL PYNAME(KFDP(IDC,1),CHD1) | |
2676 | CALL PYNAME(KFDP(IDC,2),CHD2) | |
2677 | IF(KFDP(IDC,3).EQ.0) THEN | |
2678 | IF(MDME(IDC,2).EQ.102.AND.NGP1.LE.MSTP(1).AND. | |
2679 | & NGP2.LE.MSTP(1)) WRITE(MSTU(11),5800) IDC,CHD1(1:10), | |
2680 | & CHD2(1:10),0D0,0D0,STATE(MDME(IDC,1)),0D0 | |
2681 | ELSE | |
2682 | CALL PYNAME(KFDP(IDC,3),CHD3) | |
2683 | IF(MDME(IDC,2).EQ.102.AND.NGP1.LE.MSTP(1).AND. | |
2684 | & NGP2.LE.MSTP(1)) WRITE(MSTU(11),5900) IDC,CHD1(1:10), | |
2685 | & CHD2(1:10),CHD3(1:10),0D0,0D0,STATE(MDME(IDC,1)),0D0 | |
2686 | ENDIF | |
2687 | 120 CONTINUE | |
2688 | C...On-shell decays. | |
2689 | ELSE | |
2690 | CALL PYWIDT(KF,PMAS(KC,1)**2,WDTP,WDTE) | |
2691 | BRFIN=1D0 | |
2692 | IF(WDTE(0,0).LE.0D0) BRFIN=0D0 | |
2693 | WRITE(MSTU(11),5700) KF,CHKF(1:10),PMAS(KC,1),WDTP(0),1D0, | |
2694 | & STATE(MDCY(KC,1)),BRFIN | |
2695 | DO 130 J=1,MDCY(KC,3) | |
2696 | IDC=J+MDCY(KC,2)-1 | |
2697 | NGP1=0 | |
2698 | IF(IABS(KFDP(IDC,1)).LE.20) NGP1= | |
2699 | & (MOD(IABS(KFDP(IDC,1)),10)+1)/2 | |
2700 | NGP2=0 | |
2701 | IF(IABS(KFDP(IDC,2)).LE.20) NGP2= | |
2702 | & (MOD(IABS(KFDP(IDC,2)),10)+1)/2 | |
2703 | BRFIN=0D0 | |
2704 | IF(WDTE(0,0).GT.0D0) BRFIN=WDTE(J,0)/WDTE(0,0) | |
2705 | CALL PYNAME(KFDP(IDC,1),CHD1) | |
2706 | CALL PYNAME(KFDP(IDC,2),CHD2) | |
2707 | IF(KFDP(IDC,3).EQ.0) THEN | |
2708 | IF(NGP1.LE.MSTP(1).AND.NGP2.LE.MSTP(1)) | |
2709 | & WRITE(MSTU(11),5800) IDC,CHD1(1:10), | |
2710 | & CHD2(1:10),WDTP(J),WDTP(J)/WDTP(0), | |
2711 | & STATE(MDME(IDC,1)),BRFIN | |
2712 | ELSE | |
2713 | CALL PYNAME(KFDP(IDC,3),CHD3) | |
2714 | IF(NGP1.LE.MSTP(1).AND.NGP2.LE.MSTP(1)) | |
2715 | & WRITE(MSTU(11),5900) IDC,CHD1(1:10), | |
2716 | & CHD2(1:10),CHD3(1:10),WDTP(J),WDTP(J)/WDTP(0), | |
2717 | & STATE(MDME(IDC,1)),BRFIN | |
2718 | ENDIF | |
2719 | 130 CONTINUE | |
2720 | ENDIF | |
2721 | 140 CONTINUE | |
2722 | WRITE(MSTU(11),6000) | |
2723 | ||
2724 | C...Allowed incoming partons/particles at hard interaction. | |
2725 | ELSEIF(MSTAT.EQ.3) THEN | |
2726 | WRITE(MSTU(11),6100) | |
2727 | CALL PYNAME(MINT(11),CHAU) | |
2728 | CHIN(1)=CHAU(1:12) | |
2729 | CALL PYNAME(MINT(12),CHAU) | |
2730 | CHIN(2)=CHAU(1:12) | |
2731 | WRITE(MSTU(11),6200) CHIN(1),CHIN(2) | |
2732 | DO 150 I=-20,22 | |
2733 | IF(I.EQ.0) GOTO 150 | |
2734 | IA=IABS(I) | |
2735 | IF(IA.GT.MSTP(58).AND.IA.LE.10) GOTO 150 | |
2736 | IF(IA.GT.10+2*MSTP(1).AND.IA.LE.20) GOTO 150 | |
2737 | CALL PYNAME(I,CHAU) | |
2738 | WRITE(MSTU(11),6300) CHAU,STATE(KFIN(1,I)),CHAU, | |
2739 | & STATE(KFIN(2,I)) | |
2740 | 150 CONTINUE | |
2741 | WRITE(MSTU(11),6400) | |
2742 | ||
2743 | C...User-defined limits on kinematical variables. | |
2744 | ELSEIF(MSTAT.EQ.4) THEN | |
2745 | WRITE(MSTU(11),6500) | |
2746 | WRITE(MSTU(11),6600) | |
2747 | SHRMAX=CKIN(2) | |
2748 | IF(SHRMAX.LT.0D0) SHRMAX=VINT(1) | |
2749 | WRITE(MSTU(11),6700) CKIN(1),CHKIN(1),SHRMAX | |
2750 | PTHMIN=MAX(CKIN(3),CKIN(5)) | |
2751 | PTHMAX=CKIN(4) | |
2752 | IF(PTHMAX.LT.0D0) PTHMAX=0.5D0*SHRMAX | |
2753 | WRITE(MSTU(11),6800) CKIN(3),PTHMIN,CHKIN(2),PTHMAX | |
2754 | WRITE(MSTU(11),6900) CHKIN(3),CKIN(6) | |
2755 | DO 160 I=4,14 | |
2756 | WRITE(MSTU(11),6700) CKIN(2*I-1),CHKIN(I),CKIN(2*I) | |
2757 | 160 CONTINUE | |
2758 | SPRMAX=CKIN(32) | |
2759 | IF(SPRMAX.LT.0D0) SPRMAX=VINT(1) | |
2760 | WRITE(MSTU(11),6700) CKIN(31),CHKIN(15),SPRMAX | |
2761 | WRITE(MSTU(11),7000) | |
2762 | ||
2763 | C...Status codes and parameter values. | |
2764 | ELSEIF(MSTAT.EQ.5) THEN | |
2765 | WRITE(MSTU(11),7100) | |
2766 | WRITE(MSTU(11),7200) | |
2767 | DO 170 I=1,100 | |
2768 | WRITE(MSTU(11),7300) I,MSTP(I),PARP(I),100+I,MSTP(100+I), | |
2769 | & PARP(100+I) | |
2770 | 170 CONTINUE | |
2771 | ||
2772 | C...List of all processes implemented in the program. | |
2773 | ELSEIF(MSTAT.EQ.6) THEN | |
2774 | WRITE(MSTU(11),7400) | |
2775 | WRITE(MSTU(11),7500) | |
2776 | DO 180 I=1,500 | |
2777 | IF(ISET(I).LT.0) GOTO 180 | |
2778 | WRITE(MSTU(11),7600) I,PROC(I),ISET(I),KFPR(I,1),KFPR(I,2) | |
2779 | 180 CONTINUE | |
2780 | WRITE(MSTU(11),7700) | |
2781 | ENDIF | |
2782 | ||
2783 | C...Formats for printouts. | |
2784 | 5000 FORMAT('1',9('*'),1X,'PYSTAT: Statistics on Number of ', | |
2785 | &'Events and Cross-sections',1X,9('*')) | |
2786 | 5100 FORMAT(/1X,78('=')/1X,'I',34X,'I',28X,'I',12X,'I'/1X,'I',12X, | |
2787 | &'Subprocess',12X,'I',6X,'Number of points',6X,'I',4X,'Sigma',3X, | |
2788 | &'I'/1X,'I',34X,'I',28X,'I',12X,'I'/1X,'I',34('-'),'I',28('-'), | |
2789 | &'I',4X,'(mb)',4X,'I'/1X,'I',34X,'I',28X,'I',12X,'I'/1X,'I',1X, | |
2790 | &'N:o',1X,'Type',25X,'I',4X,'Generated',9X,'Tried',1X,'I',12X, | |
2791 | &'I'/1X,'I',34X,'I',28X,'I',12X,'I'/1X,78('=')/1X,'I',34X,'I',28X, | |
2792 | &'I',12X,'I') | |
2793 | 5200 FORMAT(1X,'I',1X,I3,1X,A28,1X,'I',1X,I12,1X,I13,1X,'I',1X,1P, | |
2794 | &D10.3,1X,'I') | |
2795 | 5300 FORMAT(1X,'I',34X,'I',28X,'I',12X,'I'/1X,78('=')/ | |
2796 | &1X,'I',34X,'I',28X,'I',12X,'I') | |
2797 | 5400 FORMAT(1X,'I',34X,'I',28X,'I',12X,'I'/1X,78('=')// | |
2798 | &1X,'********* Fraction of events that fail fragmentation ', | |
2799 | &'cuts =',1X,F8.5,' *********'/) | |
2800 | 5500 FORMAT('1',27('*'),1X,'PYSTAT: Decay Widths and Branching ', | |
2801 | &'Ratios',1X,27('*')) | |
2802 | 5600 FORMAT(/1X,98('=')/1X,'I',49X,'I',13X,'I',12X,'I',6X,'I',12X,'I'/ | |
2803 | &1X,'I',5X,'Mother --> Branching/Decay Channel',8X,'I',1X, | |
2804 | &'Width (GeV)',1X,'I',7X,'B.R.',1X,'I',1X,'Stat',1X,'I',2X, | |
2805 | &'Eff. B.R.',1X,'I'/1X,'I',49X,'I',13X,'I',12X,'I',6X,'I',12X,'I'/ | |
2806 | &1X,98('=')) | |
2807 | 5700 FORMAT(1X,'I',49X,'I',13X,'I',12X,'I',6X,'I',12X,'I'/1X,'I',1X, | |
2808 | &I8,2X,A10,3X,'(m =',F10.3,')',2X,'-->',5X,'I',2X,1P,D10.3,0P,1X, | |
2809 | &'I',1X,1P,D10.3,0P,1X,'I',1X,A4,1X,'I',1X,1P,D10.3,0P,1X,'I') | |
2810 | 5800 FORMAT(1X,'I',1X,I8,2X,A10,1X,'+',1X,A10,15X,'I',2X, | |
2811 | &1P,D10.3,0P,1X,'I',1X,1P,D10.3,0P,1X,'I',1X,A4,1X,'I',1X, | |
2812 | &1P,D10.3,0P,1X,'I') | |
2813 | 5900 FORMAT(1X,'I',1X,I8,2X,A10,1X,'+',1X,A10,1X,'+',1X,A10,2X,'I',2X, | |
2814 | &1P,D10.3,0P,1X,'I',1X,1P,D10.3,0P,1X,'I',1X,A4,1X,'I',1X, | |
2815 | &1P,D10.3,0P,1X,'I') | |
2816 | 6000 FORMAT(1X,'I',49X,'I',13X,'I',12X,'I',6X,'I',12X,'I'/1X,98('=')) | |
2817 | 6100 FORMAT('1',7('*'),1X,'PYSTAT: Allowed Incoming Partons/', | |
2818 | &'Particles at Hard Interaction',1X,7('*')) | |
2819 | 6200 FORMAT(/1X,78('=')/1X,'I',38X,'I',37X,'I'/1X,'I',1X, | |
2820 | &'Beam particle:',1X,A12,10X,'I',1X,'Target particle:',1X,A12,7X, | |
2821 | &'I'/1X,'I',38X,'I',37X,'I'/1X,'I',1X,'Content',6X,'State',19X, | |
2822 | &'I',1X,'Content',6X,'State',18X,'I'/1X,'I',38X,'I',37X,'I'/1X, | |
2823 | &78('=')/1X,'I',38X,'I',37X,'I') | |
2824 | 6300 FORMAT(1X,'I',1X,A9,5X,A4,19X,'I',1X,A9,5X,A4,18X,'I') | |
2825 | 6400 FORMAT(1X,'I',38X,'I',37X,'I'/1X,78('=')) | |
2826 | 6500 FORMAT('1',12('*'),1X,'PYSTAT: User-Defined Limits on ', | |
2827 | &'Kinematical Variables',1X,12('*')) | |
2828 | 6600 FORMAT(/1X,78('=')/1X,'I',76X,'I') | |
2829 | 6700 FORMAT(1X,'I',16X,1P,D10.3,0P,1X,'<',1X,A,1X,'<',1X,1P,D10.3,0P, | |
2830 | &16X,'I') | |
2831 | 6800 FORMAT(1X,'I',3X,1P,D10.3,0P,1X,'(',1P,D10.3,0P,')',1X,'<',1X,A, | |
2832 | &1X,'<',1X,1P,D10.3,0P,16X,'I') | |
2833 | 6900 FORMAT(1X,'I',29X,A,1X,'=',1X,1P,D10.3,0P,16X,'I') | |
2834 | 7000 FORMAT(1X,'I',76X,'I'/1X,78('=')) | |
2835 | 7100 FORMAT('1',12('*'),1X,'PYSTAT: Summary of Status Codes and ', | |
2836 | &'Parameter Values',1X,12('*')) | |
2837 | 7200 FORMAT(/3X,'I',4X,'MSTP(I)',9X,'PARP(I)',20X,'I',4X,'MSTP(I)',9X, | |
2838 | &'PARP(I)'/) | |
2839 | 7300 FORMAT(1X,I3,5X,I6,6X,1P,D10.3,0P,18X,I3,5X,I6,6X,1P,D10.3) | |
2840 | 7400 FORMAT('1',13('*'),1X,'PYSTAT: List of implemented processes', | |
2841 | &1X,13('*')) | |
2842 | 7500 FORMAT(/1X,65('=')/1X,'I',34X,'I',28X,'I'/1X,'I',12X, | |
2843 | &'Subprocess',12X,'I',1X,'ISET',2X,'KFPR(I,1)',2X,'KFPR(I,2)',1X, | |
2844 | &'I'/1X,'I',34X,'I',28X,'I'/1X,65('=')/1X,'I',34X,'I',28X,'I') | |
2845 | 7600 FORMAT(1X,'I',1X,I3,1X,A28,1X,'I',1X,I4,1X,I10,1X,I10,1X,'I') | |
2846 | 7700 FORMAT(1X,'I',34X,'I',28X,'I'/1X,65('=')) | |
2847 | ||
2848 | RETURN | |
2849 | END | |
2850 | ||
2851 | C********************************************************************* | |
2852 | ||
2853 | C...PYINRE | |
2854 | C...Calculates full and effective widths of gauge bosons, stores | |
2855 | C...masses and widths, rescales coefficients to be used for | |
2856 | C...resonance production generation. | |
2857 | ||
2858 | SUBROUTINE PYINRE | |
2859 | ||
2860 | C...Double precision and integer declarations. | |
2861 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
2862 | INTEGER PYK,PYCHGE,PYCOMP | |
2863 | C...Parameter statement to help give large particle numbers. | |
2864 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
2865 | C...Commonblocks. | |
2866 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
2867 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
2868 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
2869 | COMMON/PYDAT4/CHAF(500,2) | |
2870 | CHARACTER CHAF*16 | |
2871 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
2872 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
2873 | COMMON/PYINT1/MINT(400),VINT(400) | |
2874 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
2875 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
2876 | COMMON/PYINT6/PROC(0:500) | |
2877 | CHARACTER PROC*28 | |
2878 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
2879 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYDAT4/,/PYSUBS/,/PYPARS/, | |
2880 | &/PYINT1/,/PYINT2/,/PYINT4/,/PYINT6/,/PYMSSM/ | |
2881 | C...Local arrays and data. | |
2882 | DIMENSION WDTP(0:200),WDTE(0:200,0:5),WDTPM(0:200), | |
2883 | &WDTEM(0:200,0:5),KCORD(500),PMORD(500) | |
2884 | ||
2885 | C...Born level couplings in MSSM Higgs doublet sector. | |
2886 | XW=PARU(102) | |
2887 | XWV=XW | |
2888 | IF(MSTP(8).GE.2) XW=1D0-(PMAS(24,1)/PMAS(23,1))**2 | |
2889 | XW1=1D0-XW | |
2890 | IF(MSTP(4).EQ.2) THEN | |
2891 | TANBE=PARU(141) | |
2892 | RATBE=((1D0-TANBE**2)/(1D0+TANBE**2))**2 | |
2893 | SQMZ=PMAS(23,1)**2 | |
2894 | SQMW=PMAS(24,1)**2 | |
2895 | SQMH=PMAS(25,1)**2 | |
2896 | SQMA=SQMH*(SQMZ-SQMH)/(SQMZ*RATBE-SQMH) | |
2897 | SQMHP=0.5D0*(SQMA+SQMZ+SQRT((SQMA+SQMZ)**2-4D0*SQMA*SQMZ*RATBE)) | |
2898 | SQMHC=SQMA+SQMW | |
2899 | IF(SQMH.GE.SQMZ.OR.MIN(SQMA,SQMHP,SQMHC).LE.0D0) THEN | |
2900 | WRITE(MSTU(11),5000) | |
2901 | STOP | |
2902 | ENDIF | |
2903 | PMAS(35,1)=SQRT(SQMHP) | |
2904 | PMAS(36,1)=SQRT(SQMA) | |
2905 | PMAS(37,1)=SQRT(SQMHC) | |
2906 | ALSU=0.5D0*ATAN(2D0*TANBE*(SQMA+SQMZ)/((1D0-TANBE**2)* | |
2907 | & (SQMA-SQMZ))) | |
2908 | BESU=ATAN(TANBE) | |
2909 | PARU(142)=1D0 | |
2910 | PARU(143)=1D0 | |
2911 | PARU(161)=-SIN(ALSU)/COS(BESU) | |
2912 | PARU(162)=COS(ALSU)/SIN(BESU) | |
2913 | PARU(163)=PARU(161) | |
2914 | PARU(164)=SIN(BESU-ALSU) | |
2915 | PARU(165)=PARU(164) | |
2916 | PARU(168)=SIN(BESU-ALSU)+0.5D0*COS(2D0*BESU)*SIN(BESU+ALSU)/XW | |
2917 | PARU(171)=COS(ALSU)/COS(BESU) | |
2918 | PARU(172)=SIN(ALSU)/SIN(BESU) | |
2919 | PARU(173)=PARU(171) | |
2920 | PARU(174)=COS(BESU-ALSU) | |
2921 | PARU(175)=PARU(174) | |
2922 | PARU(176)=COS(2D0*ALSU)*COS(BESU+ALSU)-2D0*SIN(2D0*ALSU)* | |
2923 | & SIN(BESU+ALSU) | |
2924 | PARU(177)=COS(2D0*BESU)*COS(BESU+ALSU) | |
2925 | PARU(178)=COS(BESU-ALSU)-0.5D0*COS(2D0*BESU)*COS(BESU+ALSU)/XW | |
2926 | PARU(181)=TANBE | |
2927 | PARU(182)=1D0/TANBE | |
2928 | PARU(183)=PARU(181) | |
2929 | PARU(184)=0D0 | |
2930 | PARU(185)=PARU(184) | |
2931 | PARU(186)=COS(BESU-ALSU) | |
2932 | PARU(187)=SIN(BESU-ALSU) | |
2933 | PARU(188)=PARU(186) | |
2934 | PARU(189)=PARU(187) | |
2935 | PARU(190)=0D0 | |
2936 | PARU(195)=COS(BESU-ALSU) | |
2937 | ENDIF | |
2938 | ||
2939 | C...Reset effective widths of gauge bosons. | |
2940 | DO 110 I=1,500 | |
2941 | DO 100 J=1,5 | |
2942 | WIDS(I,J)=1D0 | |
2943 | 100 CONTINUE | |
2944 | 110 CONTINUE | |
2945 | ||
2946 | C...Order resonances by increasing mass (except Z0 and W+/-). | |
2947 | NRES=0 | |
2948 | DO 140 KC=1,500 | |
2949 | KF=KCHG(KC,4) | |
2950 | IF(KF.EQ.0) GOTO 140 | |
2951 | IF(MWID(KC).EQ.0) GOTO 140 | |
2952 | IF(KC.EQ.7.OR.KC.EQ.8.OR.KC.EQ.17.OR.KC.EQ.18) THEN | |
2953 | IF(MSTP(1).LE.3) GOTO 140 | |
2954 | ENDIF | |
2955 | IF(KF/KSUSY1.EQ.1.OR.KF/KSUSY1.EQ.2) THEN | |
2956 | IF(IMSS(1).LE.0) GOTO 140 | |
2957 | ENDIF | |
2958 | NRES=NRES+1 | |
2959 | PMRES=PMAS(KC,1) | |
2960 | IF(KC.EQ.23.OR.KC.EQ.24) PMRES=0D0 | |
2961 | DO 120 I1=NRES-1,1,-1 | |
2962 | IF(PMRES.GE.PMORD(I1)) GOTO 130 | |
2963 | KCORD(I1+1)=KCORD(I1) | |
2964 | PMORD(I1+1)=PMORD(I1) | |
2965 | 120 CONTINUE | |
2966 | 130 KCORD(I1+1)=KC | |
2967 | PMORD(I1+1)=PMRES | |
2968 | 140 CONTINUE | |
2969 | ||
2970 | C...Loop over possible resonances. | |
2971 | DO 180 I=1,NRES | |
2972 | KC=KCORD(I) | |
2973 | KF=KCHG(KC,4) | |
2974 | ||
2975 | C...Check that no fourth generation channels on by mistake. | |
2976 | IF(MSTP(1).LE.3) THEN | |
2977 | DO 150 J=1,MDCY(KC,3) | |
2978 | IDC=J+MDCY(KC,2)-1 | |
2979 | KFA1=IABS(KFDP(IDC,1)) | |
2980 | KFA2=IABS(KFDP(IDC,2)) | |
2981 | IF(KFA1.EQ.7.OR.KFA1.EQ.8.OR.KFA1.EQ.17.OR.KFA1.EQ.18.OR. | |
2982 | & KFA2.EQ.7.OR.KFA2.EQ.8.OR.KFA2.EQ.17.OR.KFA2.EQ.18) | |
2983 | & MDME(IDC,1)=-1 | |
2984 | 150 CONTINUE | |
2985 | ENDIF | |
2986 | ||
2987 | C...Check that no supersymmetric channels on by mistake. | |
2988 | IF(IMSS(1).LE.0) THEN | |
2989 | DO 160 J=1,MDCY(KC,3) | |
2990 | IDC=J+MDCY(KC,2)-1 | |
2991 | KFA1S=IABS(KFDP(IDC,1))/KSUSY1 | |
2992 | KFA2S=IABS(KFDP(IDC,2))/KSUSY1 | |
2993 | IF(KFA1S.EQ.1.OR.KFA1S.EQ.2.OR.KFA2S.EQ.1.OR.KFA2S.EQ.2) | |
2994 | & MDME(IDC,1)=-1 | |
2995 | 160 CONTINUE | |
2996 | ENDIF | |
2997 | ||
2998 | C...Find mass and evaluate width. | |
2999 | PMR=PMAS(KC,1) | |
3000 | IF(KF.EQ.25.OR.KF.EQ.35.OR.KF.EQ.36) MINT(62)=1 | |
3001 | IF(MWID(KC).EQ.3) MINT(63)=1 | |
3002 | CALL PYWIDT(KF,PMR**2,WDTP,WDTE) | |
3003 | MINT(51)=0 | |
3004 | ||
3005 | C...Evaluate suppression factors due to non-simulated channels. | |
3006 | IF(KCHG(KC,3).EQ.0) THEN | |
3007 | WIDS(KC,1)=((WDTE(0,1)+WDTE(0,2))**2+ | |
3008 | & 2D0*(WDTE(0,1)+WDTE(0,2))*(WDTE(0,4)+WDTE(0,5))+ | |
3009 | & 2D0*WDTE(0,4)*WDTE(0,5))/WDTP(0)**2 | |
3010 | WIDS(KC,2)=(WDTE(0,1)+WDTE(0,2)+WDTE(0,4))/WDTP(0) | |
3011 | WIDS(KC,3)=0D0 | |
3012 | WIDS(KC,4)=0D0 | |
3013 | WIDS(KC,5)=0D0 | |
3014 | ELSE | |
3015 | IF(MWID(KC).EQ.3) MINT(63)=1 | |
3016 | CALL PYWIDT(-KF,PMR**2,WDTPM,WDTEM) | |
3017 | MINT(51)=0 | |
3018 | WIDS(KC,1)=((WDTE(0,1)+WDTE(0,2))*(WDTEM(0,1)+WDTEM(0,3))+ | |
3019 | & (WDTE(0,1)+WDTE(0,2))*(WDTEM(0,4)+WDTEM(0,5))+ | |
3020 | & (WDTE(0,4)+WDTE(0,5))*(WDTEM(0,1)+WDTEM(0,3))+ | |
3021 | & WDTE(0,4)*WDTEM(0,5)+WDTE(0,5)*WDTEM(0,4))/WDTP(0)**2 | |
3022 | WIDS(KC,2)=(WDTE(0,1)+WDTE(0,2)+WDTE(0,4))/WDTP(0) | |
3023 | WIDS(KC,3)=(WDTEM(0,1)+WDTEM(0,3)+WDTEM(0,4))/WDTP(0) | |
3024 | WIDS(KC,4)=((WDTE(0,1)+WDTE(0,2))**2+ | |
3025 | & 2D0*(WDTE(0,1)+WDTE(0,2))*(WDTE(0,4)+WDTE(0,5))+ | |
3026 | & 2D0*WDTE(0,4)*WDTE(0,5))/WDTP(0)**2 | |
3027 | WIDS(KC,5)=((WDTEM(0,1)+WDTEM(0,3))**2+ | |
3028 | & 2D0*(WDTEM(0,1)+WDTEM(0,3))*(WDTEM(0,4)+WDTEM(0,5))+ | |
3029 | & 2D0*WDTEM(0,4)*WDTEM(0,5))/WDTP(0)**2 | |
3030 | ENDIF | |
3031 | ||
3032 | C...Set resonance widths and branching ratios; | |
3033 | C...also on/off switch for decays. | |
3034 | IF(MWID(KC).EQ.1.OR.MWID(KC).EQ.3) THEN | |
3035 | PMAS(KC,2)=WDTP(0) | |
3036 | PMAS(KC,3)=MIN(0.9D0*PMAS(KC,1),10D0*PMAS(KC,2)) | |
3037 | MDCY(KC,1)=MSTP(41) | |
3038 | DO 170 J=1,MDCY(KC,3) | |
3039 | IDC=J+MDCY(KC,2)-1 | |
3040 | BRAT(IDC)=0D0 | |
3041 | IF(WDTP(0).GT.0D0) BRAT(IDC)=WDTP(J)/WDTP(0) | |
3042 | 170 CONTINUE | |
3043 | ENDIF | |
3044 | 180 CONTINUE | |
3045 | ||
3046 | C...Flavours of leptoquark: redefine charge and name. | |
3047 | KFLQQ=KFDP(MDCY(39,2),1) | |
3048 | KFLQL=KFDP(MDCY(39,2),2) | |
3049 | KCHG(39,1)=KCHG(PYCOMP(KFLQQ),1)*ISIGN(1,KFLQQ)+ | |
3050 | &KCHG(PYCOMP(KFLQL),1)*ISIGN(1,KFLQL) | |
3051 | LL=1 | |
3052 | IF(IABS(KFLQL).EQ.13) LL=2 | |
3053 | IF(IABS(KFLQL).EQ.15) LL=3 | |
3054 | CHAF(39,1)='LQ_'//CHAF(IABS(KFLQQ),1)(1:1)// | |
3055 | &CHAF(IABS(KFLQL),1)(1:LL)//' ' | |
3056 | CHAF(39,2)=CHAF(39,2)(1:4+LL)//'bar ' | |
3057 | ||
3058 | C...Special cases in treatment of gamma*/Z0: redefine process name. | |
3059 | IF(MSTP(43).EQ.1) THEN | |
3060 | PROC(1)='f + fbar -> gamma*' | |
3061 | PROC(15)='f + fbar -> g + gamma*' | |
3062 | PROC(19)='f + fbar -> gamma + gamma*' | |
3063 | PROC(30)='f + g -> f + gamma*' | |
3064 | PROC(35)='f + gamma -> f + gamma*' | |
3065 | ELSEIF(MSTP(43).EQ.2) THEN | |
3066 | PROC(1)='f + fbar -> Z0' | |
3067 | PROC(15)='f + fbar -> g + Z0' | |
3068 | PROC(19)='f + fbar -> gamma + Z0' | |
3069 | PROC(30)='f + g -> f + Z0' | |
3070 | PROC(35)='f + gamma -> f + Z0' | |
3071 | ELSEIF(MSTP(43).EQ.3) THEN | |
3072 | PROC(1)='f + fbar -> gamma*/Z0' | |
3073 | PROC(15)='f + fbar -> g + gamma*/Z0' | |
3074 | PROC(19)='f + fbar -> gamma + gamma*/Z0' | |
3075 | PROC(30)='f + g -> f + gamma*/Z0' | |
3076 | PROC(35)='f + gamma -> f + gamma*/Z0' | |
3077 | ENDIF | |
3078 | ||
3079 | C...Special cases in treatment of gamma*/Z0/Z'0: redefine process name. | |
3080 | IF(MSTP(44).EQ.1) THEN | |
3081 | PROC(141)='f + fbar -> gamma*' | |
3082 | ELSEIF(MSTP(44).EQ.2) THEN | |
3083 | PROC(141)='f + fbar -> Z0' | |
3084 | ELSEIF(MSTP(44).EQ.3) THEN | |
3085 | PROC(141)='f + fbar -> Z''0' | |
3086 | ELSEIF(MSTP(44).EQ.4) THEN | |
3087 | PROC(141)='f + fbar -> gamma*/Z0' | |
3088 | ELSEIF(MSTP(44).EQ.5) THEN | |
3089 | PROC(141)='f + fbar -> gamma*/Z''0' | |
3090 | ELSEIF(MSTP(44).EQ.6) THEN | |
3091 | PROC(141)='f + fbar -> Z0/Z''0' | |
3092 | ELSEIF(MSTP(44).EQ.7) THEN | |
3093 | PROC(141)='f + fbar -> gamma*/Z0/Z''0' | |
3094 | ENDIF | |
3095 | ||
3096 | C...Special cases in treatment of WW -> WW: redefine process name. | |
3097 | IF(MSTP(45).EQ.1) THEN | |
3098 | PROC(77)='W+ + W+ -> W+ + W+' | |
3099 | ELSEIF(MSTP(45).EQ.2) THEN | |
3100 | PROC(77)='W+ + W- -> W+ + W-' | |
3101 | ELSEIF(MSTP(45).EQ.3) THEN | |
3102 | PROC(77)='W+/- + W+/- -> W+/- + W+/-' | |
3103 | ENDIF | |
3104 | ||
3105 | C...Format for error information. | |
3106 | 5000 FORMAT(1X,'Error: unphysical input tan^2(beta) and m_H ', | |
3107 | &'combination'/1X,'Execution stopped!') | |
3108 | ||
3109 | RETURN | |
3110 | END | |
3111 | ||
3112 | C********************************************************************* | |
3113 | ||
3114 | C...PYINBM | |
3115 | C...Identifies the two incoming particles and the choice of frame. | |
3116 | ||
3117 | SUBROUTINE PYINBM(CHFRAM,CHBEAM,CHTARG,WIN) | |
3118 | ||
3119 | C...Double precision and integer declarations. | |
3120 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
3121 | INTEGER PYK,PYCHGE,PYCOMP | |
3122 | C...Commonblocks. | |
3123 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
3124 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
3125 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
3126 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
3127 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
3128 | COMMON/PYINT1/MINT(400),VINT(400) | |
3129 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYSUBS/,/PYPARS/,/PYINT1/ | |
3130 | C...Local arrays, character variables and data. | |
3131 | CHARACTER CHFRAM*8,CHBEAM*8,CHTARG*8,CHCOM(3)*8,CHALP(2)*26, | |
3132 | &CHIDNT(3)*8,CHTEMP*8,CHCDE(29)*8,CHINIT*76 | |
3133 | DIMENSION LEN(3),KCDE(29),PM(2) | |
3134 | DATA CHALP/'abcdefghijklmnopqrstuvwxyz', | |
3135 | &'ABCDEFGHIJKLMNOPQRSTUVWXYZ'/ | |
3136 | DATA CHCDE/'e- ','e+ ','nu_e ','nu_ebar ', | |
3137 | &'mu- ','mu+ ','nu_mu ','nu_mubar','tau- ', | |
3138 | &'tau+ ','nu_tau ','nu_tauba','pi+ ','pi- ', | |
3139 | &'n0 ','nbar0 ','p+ ','pbar- ','gamma ', | |
3140 | &'lambda0 ','sigma- ','sigma0 ','sigma+ ','xi- ', | |
3141 | &'xi0 ','omega- ','pi0 ','reggeon ','pomeron '/ | |
3142 | DATA KCDE/11,-11,12,-12,13,-13,14,-14,15,-15,16,-16, | |
3143 | &211,-211,2112,-2112,2212,-2212,22,3122,3112,3212,3222, | |
3144 | &3312,3322,3334,111,28,29/ | |
3145 | ||
3146 | C...Store initial energy. Default frame. | |
3147 | VINT(290)=WIN | |
3148 | MINT(111)=0 | |
3149 | ||
3150 | C...Convert character variables to lowercase and find their length. | |
3151 | CHCOM(1)=CHFRAM | |
3152 | CHCOM(2)=CHBEAM | |
3153 | CHCOM(3)=CHTARG | |
3154 | DO 130 I=1,3 | |
3155 | LEN(I)=8 | |
3156 | DO 110 LL=8,1,-1 | |
3157 | IF(LEN(I).EQ.LL.AND.CHCOM(I)(LL:LL).EQ.' ') LEN(I)=LL-1 | |
3158 | DO 100 LA=1,26 | |
3159 | IF(CHCOM(I)(LL:LL).EQ.CHALP(2)(LA:LA)) CHCOM(I)(LL:LL)= | |
3160 | & CHALP(1)(LA:LA) | |
3161 | 100 CONTINUE | |
3162 | 110 CONTINUE | |
3163 | CHIDNT(I)=CHCOM(I) | |
3164 | ||
3165 | C...Fix up bar, underscore and charge in particle name (if needed). | |
3166 | DO 120 LL=1,6 | |
3167 | IF(CHIDNT(I)(LL:LL).EQ.'~') THEN | |
3168 | CHTEMP=CHIDNT(I) | |
3169 | CHIDNT(I)=CHTEMP(1:LL-1)//'bar'//CHTEMP(LL+1:6)//' ' | |
3170 | ENDIF | |
3171 | 120 CONTINUE | |
3172 | IF(CHIDNT(I)(7:7).EQ.'~') CHIDNT(I)(7:8)='ba' | |
3173 | IF(CHIDNT(I)(1:2).EQ.'nu'.AND.CHIDNT(I)(3:3).NE.'_') THEN | |
3174 | CHTEMP=CHIDNT(I) | |
3175 | CHIDNT(I)='nu_'//CHTEMP(3:7) | |
3176 | ELSEIF(CHIDNT(I)(1:2).EQ.'n ') THEN | |
3177 | CHIDNT(I)(1:3)='n0 ' | |
3178 | ELSEIF(CHIDNT(I)(1:4).EQ.'nbar') THEN | |
3179 | CHIDNT(I)(1:5)='nbar0' | |
3180 | ELSEIF(CHIDNT(I)(1:2).EQ.'p ') THEN | |
3181 | CHIDNT(I)(1:3)='p+ ' | |
3182 | ELSEIF(CHIDNT(I)(1:4).EQ.'pbar'.OR. | |
3183 | & CHIDNT(I)(1:2).EQ.'p-') THEN | |
3184 | CHIDNT(I)(1:5)='pbar-' | |
3185 | ELSEIF(CHIDNT(I)(1:6).EQ.'lambda') THEN | |
3186 | CHIDNT(I)(7:7)='0' | |
3187 | ELSEIF(CHIDNT(I)(1:3).EQ.'reg') THEN | |
3188 | CHIDNT(I)(1:7)='reggeon' | |
3189 | ELSEIF(CHIDNT(I)(1:3).EQ.'pom') THEN | |
3190 | CHIDNT(I)(1:7)='pomeron' | |
3191 | ENDIF | |
3192 | 130 CONTINUE | |
3193 | ||
3194 | C...Identify free initialization. | |
3195 | IF(CHCOM(1)(1:2).EQ.'no') THEN | |
3196 | MINT(65)=1 | |
3197 | RETURN | |
3198 | ENDIF | |
3199 | ||
3200 | C...Identify incoming beam and target particles. | |
3201 | DO 150 I=1,2 | |
3202 | DO 140 J=1,29 | |
3203 | IF(CHIDNT(I+1).EQ.CHCDE(J)) MINT(10+I)=KCDE(J) | |
3204 | 140 CONTINUE | |
3205 | PM(I)=PYMASS(MINT(10+I)) | |
3206 | VINT(2+I)=PM(I) | |
3207 | 150 CONTINUE | |
3208 | IF(MINT(11).EQ.0) WRITE(MSTU(11),5000) CHBEAM(1:LEN(2)) | |
3209 | IF(MINT(12).EQ.0) WRITE(MSTU(11),5100) CHTARG(1:LEN(3)) | |
3210 | IF(MINT(11).EQ.0.OR.MINT(12).EQ.0) STOP | |
3211 | ||
3212 | C...Identify choice of frame and input energies. | |
3213 | CHINIT=' ' | |
3214 | ||
3215 | C...Events defined in the CM frame. | |
3216 | IF(CHCOM(1)(1:2).EQ.'cm') THEN | |
3217 | MINT(111)=1 | |
3218 | S=WIN**2 | |
3219 | IF(MSTP(122).GE.1) THEN | |
3220 | IF(CHCOM(2)(1:1).NE.'e') THEN | |
3221 | LOFFS=(31-(LEN(2)+LEN(3)))/2 | |
3222 | CHINIT(LOFFS+1:76)='PYTHIA will be initialized for a '// | |
3223 | & CHCOM(2)(1:LEN(2))//' on '//CHCOM(3)(1:LEN(3))// | |
3224 | & ' collider'//' ' | |
3225 | ELSE | |
3226 | LOFFS=(30-(LEN(2)+LEN(3)))/2 | |
3227 | CHINIT(LOFFS+1:76)='PYTHIA will be initialized for an '// | |
3228 | & CHCOM(2)(1:LEN(2))//' on '//CHCOM(3)(1:LEN(3))// | |
3229 | & ' collider'//' ' | |
3230 | ENDIF | |
3231 | WRITE(MSTU(11),5200) CHINIT | |
3232 | WRITE(MSTU(11),5300) WIN | |
3233 | ENDIF | |
3234 | ||
3235 | C...Events defined in fixed target frame. | |
3236 | ELSEIF(CHCOM(1)(1:3).EQ.'fix') THEN | |
3237 | MINT(111)=2 | |
3238 | S=PM(1)**2+PM(2)**2+2D0*PM(2)*SQRT(PM(1)**2+WIN**2) | |
3239 | IF(MSTP(122).GE.1) THEN | |
3240 | LOFFS=(29-(LEN(2)+LEN(3)))/2 | |
3241 | CHINIT(LOFFS+1:76)='PYTHIA will be initialized for '// | |
3242 | & CHCOM(2)(1:LEN(2))//' on '//CHCOM(3)(1:LEN(3))// | |
3243 | & ' fixed target'//' ' | |
3244 | WRITE(MSTU(11),5200) CHINIT | |
3245 | WRITE(MSTU(11),5400) WIN | |
3246 | WRITE(MSTU(11),5500) SQRT(S) | |
3247 | ENDIF | |
3248 | ||
3249 | C...Frame defined by user three-vectors. | |
3250 | ELSEIF(CHCOM(1)(1:3).EQ.'use') THEN | |
3251 | MINT(111)=3 | |
3252 | P(1,5)=PM(1) | |
3253 | P(2,5)=PM(2) | |
3254 | P(1,4)=SQRT(P(1,1)**2+P(1,2)**2+P(1,3)**2+P(1,5)**2) | |
3255 | P(2,4)=SQRT(P(2,1)**2+P(2,2)**2+P(2,3)**2+P(2,5)**2) | |
3256 | S=(P(1,4)+P(2,4))**2-(P(1,1)+P(2,1))**2-(P(1,2)+P(2,2))**2- | |
3257 | & (P(1,3)+P(2,3))**2 | |
3258 | IF(MSTP(122).GE.1) THEN | |
3259 | LOFFS=(12-(LEN(2)+LEN(3)))/2 | |
3260 | CHINIT(LOFFS+1:76)='PYTHIA will be initialized for '// | |
3261 | & CHCOM(2)(1:LEN(2))//' on '//CHCOM(3)(1:LEN(3))// | |
3262 | & ' user-specified configuration'//' ' | |
3263 | WRITE(MSTU(11),5200) CHINIT | |
3264 | WRITE(MSTU(11),5600) | |
3265 | WRITE(MSTU(11),5700) CHCOM(2),P(1,1),P(1,2),P(1,3),P(1,4) | |
3266 | WRITE(MSTU(11),5700) CHCOM(3),P(2,1),P(2,2),P(2,3),P(2,4) | |
3267 | WRITE(MSTU(11),5500) SQRT(MAX(0D0,S)) | |
3268 | ENDIF | |
3269 | ||
3270 | C...Frame defined by user four-vectors. | |
3271 | ELSEIF(CHCOM(1)(1:4).EQ.'four') THEN | |
3272 | MINT(111)=4 | |
3273 | PMS1=P(1,4)**2-P(1,1)**2-P(1,2)**2-P(1,3)**2 | |
3274 | P(1,5)=SIGN(SQRT(ABS(PMS1)),PMS1) | |
3275 | PMS2=P(2,4)**2-P(2,1)**2-P(2,2)**2-P(2,3)**2 | |
3276 | P(2,5)=SIGN(SQRT(ABS(PMS2)),PMS2) | |
3277 | S=(P(1,4)+P(2,4))**2-(P(1,1)+P(2,1))**2-(P(1,2)+P(2,2))**2- | |
3278 | & (P(1,3)+P(2,3))**2 | |
3279 | IF(MSTP(122).GE.1) THEN | |
3280 | LOFFS=(12-(LEN(2)+LEN(3)))/2 | |
3281 | CHINIT(LOFFS+1:76)='PYTHIA will be initialized for '// | |
3282 | & CHCOM(2)(1:LEN(2))//' on '//CHCOM(3)(1:LEN(3))// | |
3283 | & ' user-specified configuration'//' ' | |
3284 | WRITE(MSTU(11),5200) CHINIT | |
3285 | WRITE(MSTU(11),5600) | |
3286 | WRITE(MSTU(11),5700) CHCOM(2),P(1,1),P(1,2),P(1,3),P(1,4) | |
3287 | WRITE(MSTU(11),5700) CHCOM(3),P(2,1),P(2,2),P(2,3),P(2,4) | |
3288 | WRITE(MSTU(11),5500) SQRT(MAX(0D0,S)) | |
3289 | ENDIF | |
3290 | ||
3291 | C...Frame defined by user five-vectors. | |
3292 | ELSEIF(CHCOM(1)(1:4).EQ.'five') THEN | |
3293 | MINT(111)=5 | |
3294 | S=(P(1,4)+P(2,4))**2-(P(1,1)+P(2,1))**2-(P(1,2)+P(2,2))**2- | |
3295 | & (P(1,3)+P(2,3))**2 | |
3296 | IF(MSTP(122).GE.1) THEN | |
3297 | LOFFS=(12-(LEN(2)+LEN(3)))/2 | |
3298 | CHINIT(LOFFS+1:76)='PYTHIA will be initialized for '// | |
3299 | & CHCOM(2)(1:LEN(2))//' on '//CHCOM(3)(1:LEN(3))// | |
3300 | & ' user-specified configuration'//' ' | |
3301 | WRITE(MSTU(11),5200) CHINIT | |
3302 | WRITE(MSTU(11),5600) | |
3303 | WRITE(MSTU(11),5700) CHCOM(2),P(1,1),P(1,2),P(1,3),P(1,4) | |
3304 | WRITE(MSTU(11),5700) CHCOM(3),P(2,1),P(2,2),P(2,3),P(2,4) | |
3305 | WRITE(MSTU(11),5500) SQRT(MAX(0D0,S)) | |
3306 | ENDIF | |
3307 | ||
3308 | C...Unknown frame. Error for too low CM energy. | |
3309 | ELSE | |
3310 | WRITE(MSTU(11),5800) CHFRAM(1:LEN(1)) | |
3311 | STOP | |
3312 | ENDIF | |
3313 | IF(S.LT.PARP(2)**2) THEN | |
3314 | WRITE(MSTU(11),5900) SQRT(S) | |
3315 | STOP | |
3316 | ENDIF | |
3317 | ||
3318 | C...Formats for initialization and error information. | |
3319 | 5000 FORMAT(1X,'Error: unrecognized beam particle ''',A,'''D0'/ | |
3320 | &1X,'Execution stopped!') | |
3321 | 5100 FORMAT(1X,'Error: unrecognized target particle ''',A,'''D0'/ | |
3322 | &1X,'Execution stopped!') | |
3323 | 5200 FORMAT(/1X,78('=')/1X,'I',76X,'I'/1X,'I',A76,'I') | |
3324 | 5300 FORMAT(1X,'I',18X,'at',1X,F10.3,1X,'GeV center-of-mass energy', | |
3325 | &19X,'I'/1X,'I',76X,'I'/1X,78('=')) | |
3326 | 5400 FORMAT(1X,'I',22X,'at',1X,F10.3,1X,'GeV/c lab-momentum',22X,'I') | |
3327 | 5500 FORMAT(1X,'I',76X,'I'/1X,'I',11X,'corresponding to',1X,F10.3,1X, | |
3328 | &'GeV center-of-mass energy',12X,'I'/1X,'I',76X,'I'/1X,78('=')) | |
3329 | 5600 FORMAT(1X,'I',76X,'I'/1X,'I',18X,'px (GeV/c)',3X,'py (GeV/c)',3X, | |
3330 | &'pz (GeV/c)',6X,'E (GeV)',9X,'I') | |
3331 | 5700 FORMAT(1X,'I',8X,A8,4(2X,F10.3,1X),8X,'I') | |
3332 | 5800 FORMAT(1X,'Error: unrecognized coordinate frame ''',A,'''D0'/ | |
3333 | &1X,'Execution stopped!') | |
3334 | 5900 FORMAT(1X,'Error: too low CM energy,',F8.3,' GeV for event ', | |
3335 | &'generation.'/1X,'Execution stopped!') | |
3336 | ||
3337 | RETURN | |
3338 | END | |
3339 | ||
3340 | C********************************************************************* | |
3341 | ||
3342 | C...PYINKI | |
3343 | C...Sets up kinematics, including rotations and boosts to/from CM frame. | |
3344 | ||
3345 | SUBROUTINE PYINKI(MODKI) | |
3346 | ||
3347 | C...Double precision and integer declarations. | |
3348 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
3349 | INTEGER PYK,PYCHGE,PYCOMP | |
3350 | C...Commonblocks. | |
3351 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
3352 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
3353 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
3354 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
3355 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
3356 | COMMON/PYINT1/MINT(400),VINT(400) | |
3357 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYSUBS/,/PYPARS/,/PYINT1/ | |
3358 | ||
3359 | C...Set initial flavour state. | |
3360 | N=2 | |
3361 | DO 100 I=1,2 | |
3362 | K(I,1)=1 | |
3363 | K(I,2)=MINT(10+I) | |
3364 | 100 CONTINUE | |
3365 | ||
3366 | C...Reset boost. Do kinematics for various cases. | |
3367 | DO 110 J=6,10 | |
3368 | VINT(J)=0D0 | |
3369 | 110 CONTINUE | |
3370 | ||
3371 | C...Set up kinematics for events defined in CM frame. | |
3372 | IF(MINT(111).EQ.1) THEN | |
3373 | WIN=VINT(290) | |
3374 | IF(MODKI.EQ.1) WIN=PARP(171)*VINT(290) | |
3375 | S=WIN**2 | |
3376 | P(1,5)=VINT(3) | |
3377 | P(2,5)=VINT(4) | |
3378 | P(1,1)=0D0 | |
3379 | P(1,2)=0D0 | |
3380 | P(2,1)=0D0 | |
3381 | P(2,2)=0D0 | |
3382 | P(1,3)=SQRT(((S-P(1,5)**2-P(2,5)**2)**2-(2D0*P(1,5)*P(2,5))**2)/ | |
3383 | & (4D0*S)) | |
3384 | P(2,3)=-P(1,3) | |
3385 | P(1,4)=SQRT(P(1,3)**2+P(1,5)**2) | |
3386 | P(2,4)=SQRT(P(2,3)**2+P(2,5)**2) | |
3387 | ||
3388 | C...Set up kinematics for fixed target events. | |
3389 | ELSEIF(MINT(111).EQ.2) THEN | |
3390 | WIN=VINT(290) | |
3391 | IF(MODKI.EQ.1) WIN=PARP(171)*VINT(290) | |
3392 | P(1,5)=VINT(3) | |
3393 | P(2,5)=VINT(4) | |
3394 | P(1,1)=0D0 | |
3395 | P(1,2)=0D0 | |
3396 | P(2,1)=0D0 | |
3397 | P(2,2)=0D0 | |
3398 | P(1,3)=WIN | |
3399 | P(1,4)=SQRT(P(1,3)**2+P(1,5)**2) | |
3400 | P(2,3)=0D0 | |
3401 | P(2,4)=P(2,5) | |
3402 | S=P(1,5)**2+P(2,5)**2+2D0*P(2,4)*P(1,4) | |
3403 | VINT(10)=P(1,3)/(P(1,4)+P(2,4)) | |
3404 | CALL PYROBO(0,0,0D0,0D0,0D0,0D0,-VINT(10)) | |
3405 | ||
3406 | C...Set up kinematics for events in user-defined frame. | |
3407 | ELSEIF(MINT(111).EQ.3) THEN | |
3408 | P(1,5)=VINT(3) | |
3409 | P(2,5)=VINT(4) | |
3410 | P(1,4)=SQRT(P(1,1)**2+P(1,2)**2+P(1,3)**2+P(1,5)**2) | |
3411 | P(2,4)=SQRT(P(2,1)**2+P(2,2)**2+P(2,3)**2+P(2,5)**2) | |
3412 | DO 120 J=1,3 | |
3413 | VINT(7+J)=(P(1,J)+P(2,J))/(P(1,4)+P(2,4)) | |
3414 | 120 CONTINUE | |
3415 | CALL PYROBO(0,0,0D0,0D0,-VINT(8),-VINT(9),-VINT(10)) | |
3416 | VINT(7)=PYANGL(P(1,1),P(1,2)) | |
3417 | CALL PYROBO(0,0,0D0,-VINT(7),0D0,0D0,0D0) | |
3418 | VINT(6)=PYANGL(P(1,3),P(1,1)) | |
3419 | CALL PYROBO(0,0,-VINT(6),0D0,0D0,0D0,0D0) | |
3420 | S=P(1,5)**2+P(2,5)**2+2D0*(P(1,4)*P(2,4)-P(1,3)*P(2,3)) | |
3421 | ||
3422 | C...Set up kinematics for events with user-defined four-vectors. | |
3423 | ELSEIF(MINT(111).EQ.4) THEN | |
3424 | PMS1=P(1,4)**2-P(1,1)**2-P(1,2)**2-P(1,3)**2 | |
3425 | P(1,5)=SIGN(SQRT(ABS(PMS1)),PMS1) | |
3426 | PMS2=P(2,4)**2-P(2,1)**2-P(2,2)**2-P(2,3)**2 | |
3427 | P(2,5)=SIGN(SQRT(ABS(PMS2)),PMS2) | |
3428 | DO 130 J=1,3 | |
3429 | VINT(7+J)=(P(1,J)+P(2,J))/(P(1,4)+P(2,4)) | |
3430 | 130 CONTINUE | |
3431 | CALL PYROBO(0,0,0D0,0D0,-VINT(8),-VINT(9),-VINT(10)) | |
3432 | VINT(7)=PYANGL(P(1,1),P(1,2)) | |
3433 | CALL PYROBO(0,0,0D0,-VINT(7),0D0,0D0,0D0) | |
3434 | VINT(6)=PYANGL(P(1,3),P(1,1)) | |
3435 | CALL PYROBO(0,0,-VINT(6),0D0,0D0,0D0,0D0) | |
3436 | S=(P(1,4)+P(2,4))**2 | |
3437 | ||
3438 | C...Set up kinematics for events with user-defined five-vectors. | |
3439 | ELSEIF(MINT(111).EQ.5) THEN | |
3440 | DO 140 J=1,3 | |
3441 | VINT(7+J)=(P(1,J)+P(2,J))/(P(1,4)+P(2,4)) | |
3442 | 140 CONTINUE | |
3443 | CALL PYROBO(0,0,0D0,0D0,-VINT(8),-VINT(9),-VINT(10)) | |
3444 | VINT(7)=PYANGL(P(1,1),P(1,2)) | |
3445 | CALL PYROBO(0,0,0D0,-VINT(7),0D0,0D0,0D0) | |
3446 | VINT(6)=PYANGL(P(1,3),P(1,1)) | |
3447 | CALL PYROBO(0,0,-VINT(6),0D0,0D0,0D0,0D0) | |
3448 | S=(P(1,4)+P(2,4))**2 | |
3449 | ENDIF | |
3450 | ||
3451 | C...Return or error for too low CM energy. | |
3452 | IF(MODKI.EQ.1.AND.S.LT.PARP(2)**2) THEN | |
3453 | IF(MSTP(172).LE.1) THEN | |
3454 | CALL PYERRM(23, | |
3455 | & '(PYINKI:) too low invariant mass in this event') | |
3456 | ELSE | |
3457 | MSTI(61)=1 | |
3458 | RETURN | |
3459 | ENDIF | |
3460 | ENDIF | |
3461 | ||
3462 | C...Save information on incoming particles. | |
3463 | VINT(1)=SQRT(S) | |
3464 | VINT(2)=S | |
3465 | IF(MINT(111).GE.4) VINT(3)=P(1,5) | |
3466 | IF(MINT(111).GE.4) VINT(4)=P(2,5) | |
3467 | VINT(5)=P(1,3) | |
3468 | IF(MODKI.EQ.0) VINT(289)=S | |
3469 | DO 150 J=1,5 | |
3470 | V(1,J)=0D0 | |
3471 | V(2,J)=0D0 | |
3472 | VINT(290+J)=P(1,J) | |
3473 | VINT(295+J)=P(2,J) | |
3474 | 150 CONTINUE | |
3475 | ||
3476 | C...Store pT cut-off and related constants to be used in generation. | |
3477 | IF(MODKI.EQ.0) VINT(285)=CKIN(3) | |
3478 | IF(MSTP(82).LE.1) THEN | |
3479 | IF(MINT(121).GT.1) PARP(81)=1.30D0+0.15D0*LOG(VINT(1)/200D0)/ | |
3480 | & LOG(900D0/200D0) | |
3481 | PTMN=PARP(81) | |
3482 | ELSE | |
3483 | IF(MINT(121).GT.1) PARP(82)=1.25D0+0.15D0*LOG(VINT(1)/200D0)/ | |
3484 | & LOG(900D0/200D0) | |
3485 | PTMN=PARP(82) | |
3486 | ENDIF | |
3487 | VINT(149)=4D0*PTMN**2/S | |
3488 | ||
3489 | RETURN | |
3490 | END | |
3491 | ||
3492 | C********************************************************************* | |
3493 | ||
3494 | C...PYINPR | |
3495 | C...Selects partonic subprocesses to be included in the simulation. | |
3496 | ||
3497 | SUBROUTINE PYINPR | |
3498 | ||
3499 | C...Double precision and integer declarations. | |
3500 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
3501 | INTEGER PYK,PYCHGE,PYCOMP | |
3502 | C...Commonblocks. | |
3503 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
3504 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
3505 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
3506 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
3507 | COMMON/PYINT1/MINT(400),VINT(400) | |
3508 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
3509 | SAVE /PYDAT1/,/PYDAT3/,/PYSUBS/,/PYPARS/,/PYINT1/,/PYINT2/ | |
3510 | ||
3511 | C...Reset processes to be included. | |
3512 | IF(MSEL.NE.0) THEN | |
3513 | DO 100 I=1,500 | |
3514 | MSUB(I)=0 | |
3515 | 100 CONTINUE | |
3516 | ENDIF | |
3517 | ||
3518 | C...For e-gamma witn MSTP(14)=10 allow mixture of VMD and anomalous. | |
3519 | IF(MINT(121).EQ.2) THEN | |
3520 | MSUB(10)=1 | |
3521 | MINT(123)=MINT(122)+1 | |
3522 | ||
3523 | C...For gamma-p or gamma-gamma with MSTP(14)=10 allow mixture. | |
3524 | C...Here also set a few parameters otherwise normally not touched. | |
3525 | ELSEIF(MINT(121).GT.1) THEN | |
3526 | ||
3527 | C...Parton distributions dampened at small Q2; go to low energies, | |
3528 | C...alpha_s <1; no minimum pT cut-off a priori. | |
3529 | MSTP(57)=3 | |
3530 | MSTP(85)=0 | |
3531 | PARP(2)=2D0 | |
3532 | PARU(115)=1D0 | |
3533 | CKIN(5)=0.2D0 | |
3534 | CKIN(6)=0.2D0 | |
3535 | ||
3536 | C...Define pT cut-off parameters and whether run involves low-pT. | |
3537 | IF(MSTP(82).LE.1) THEN | |
3538 | PTMVMD=1.30D0+0.15D0*LOG(VINT(1)/200D0)/LOG(900D0/200D0) | |
3539 | ELSE | |
3540 | PTMVMD=1.25D0+0.15D0*LOG(VINT(1)/200D0)/LOG(900D0/200D0) | |
3541 | ENDIF | |
3542 | PTMDIR=PARP(15) | |
3543 | PTMANO=PTMVMD | |
3544 | IF(MSTP(15).EQ.5) PTMANO=0.60D0+ | |
3545 | & 0.125D0*LOG(1D0+0.10D0*VINT(1))**2 | |
3546 | IPTL=1 | |
3547 | IF(VINT(285).GT.MAX(PTMVMD,PTMDIR,PTMANO)) IPTL=0 | |
3548 | IF(MSEL.EQ.2) IPTL=1 | |
3549 | ||
3550 | C...Set up for p/VMD * VMD. | |
3551 | IF(MINT(122).EQ.1) THEN | |
3552 | MINT(123)=2 | |
3553 | MSUB(11)=1 | |
3554 | MSUB(12)=1 | |
3555 | MSUB(13)=1 | |
3556 | MSUB(28)=1 | |
3557 | MSUB(53)=1 | |
3558 | MSUB(68)=1 | |
3559 | IF(IPTL.EQ.1) MSUB(95)=1 | |
3560 | IF(MSEL.EQ.2) THEN | |
3561 | MSUB(91)=1 | |
3562 | MSUB(92)=1 | |
3563 | MSUB(93)=1 | |
3564 | MSUB(94)=1 | |
3565 | ENDIF | |
3566 | PARP(81)=PTMVMD | |
3567 | PARP(82)=PTMVMD | |
3568 | IF(IPTL.EQ.1) CKIN(3)=0D0 | |
3569 | ||
3570 | C...Set up for p/VMD * direct gamma. | |
3571 | ELSEIF(MINT(122).EQ.2) THEN | |
3572 | MINT(123)=0 | |
3573 | IF(MINT(121).EQ.6) MINT(123)=5 | |
3574 | MSUB(33)=1 | |
3575 | MSUB(54)=1 | |
3576 | IF(IPTL.EQ.1) CKIN(3)=PTMDIR | |
3577 | ||
3578 | C...Set up for p/VMD * anomalous gamma. | |
3579 | ELSEIF(MINT(122).EQ.3) THEN | |
3580 | MINT(123)=3 | |
3581 | IF(MINT(121).EQ.6) MINT(123)=7 | |
3582 | MSUB(11)=1 | |
3583 | MSUB(12)=1 | |
3584 | MSUB(13)=1 | |
3585 | MSUB(28)=1 | |
3586 | MSUB(53)=1 | |
3587 | MSUB(68)=1 | |
3588 | IF(MSTP(82).GE.2) MSTP(85)=1 | |
3589 | IF(IPTL.EQ.1) CKIN(3)=PTMANO | |
3590 | ||
3591 | C...Set up for direct * direct gamma (switch off leptons). | |
3592 | ELSEIF(MINT(122).EQ.4) THEN | |
3593 | MINT(123)=0 | |
3594 | MSUB(58)=1 | |
3595 | DO 110 II=MDCY(22,2),MDCY(22,2)+MDCY(22,3)-1 | |
3596 | IF(IABS(KFDP(II,1)).GE.10) MDME(II,1)=MIN(0,MDME(II,1)) | |
3597 | 110 CONTINUE | |
3598 | IF(IPTL.EQ.1) CKIN(3)=PTMDIR | |
3599 | ||
3600 | C...Set up for direct * anomalous gamma. | |
3601 | ELSEIF(MINT(122).EQ.5) THEN | |
3602 | MINT(123)=6 | |
3603 | MSUB(33)=1 | |
3604 | MSUB(54)=1 | |
3605 | IF(IPTL.EQ.1) CKIN(3)=PTMANO | |
3606 | ||
3607 | C...Set up for anomalous * anomalous gamma. | |
3608 | ELSEIF(MINT(122).EQ.6) THEN | |
3609 | MINT(123)=3 | |
3610 | MSUB(11)=1 | |
3611 | MSUB(12)=1 | |
3612 | MSUB(13)=1 | |
3613 | MSUB(28)=1 | |
3614 | MSUB(53)=1 | |
3615 | MSUB(68)=1 | |
3616 | IF(MSTP(82).GE.2) MSTP(85)=1 | |
3617 | IF(IPTL.EQ.1) CKIN(3)=PTMANO | |
3618 | ENDIF | |
3619 | ||
3620 | C...End of special set up for gamma-p and gamma-gamma. | |
3621 | CKIN(1)=2D0*CKIN(3) | |
3622 | ENDIF | |
3623 | ||
3624 | C...Flavour information for individual beams. | |
3625 | DO 120 I=1,2 | |
3626 | MINT(40+I)=1 | |
3627 | IF(MINT(123).GE.1.AND.MINT(10+I).EQ.22) MINT(40+I)=2 | |
3628 | IF(IABS(MINT(10+I)).GT.100) MINT(40+I)=2 | |
3629 | IF(MINT(10+I).EQ.28.OR.MINT(10+I).EQ.29) MINT(40+I)=2 | |
3630 | MINT(44+I)=MINT(40+I) | |
3631 | IF(MSTP(11).GE.1.AND.IABS(MINT(10+I)).EQ.11) MINT(44+I)=3 | |
3632 | 120 CONTINUE | |
3633 | ||
3634 | C...If two gammas, whereof one direct, pick the first. | |
3635 | IF(MINT(11).EQ.22.AND.MINT(12).EQ.22) THEN | |
3636 | IF(MINT(123).GE.4.AND.MINT(123).LE.6) THEN | |
3637 | MINT(41)=1 | |
3638 | MINT(45)=1 | |
3639 | ENDIF | |
3640 | ELSEIF(MINT(11).EQ.22.OR.MINT(12).EQ.22) THEN | |
3641 | IF(MINT(123).GE.4) CALL PYERRM(26, | |
3642 | & '(PYINPR:) unallowed MSTP(14) code for single photon') | |
3643 | ENDIF | |
3644 | ||
3645 | C...Flavour information on combination of incoming particles. | |
3646 | MINT(43)=2*MINT(41)+MINT(42)-2 | |
3647 | MINT(44)=MINT(43) | |
3648 | IF(MINT(123).LE.0) THEN | |
3649 | IF(MINT(11).EQ.22) MINT(43)=MINT(43)+2 | |
3650 | IF(MINT(12).EQ.22) MINT(43)=MINT(43)+1 | |
3651 | ELSEIF(MINT(123).LE.3) THEN | |
3652 | IF(MINT(11).EQ.22) MINT(44)=MINT(44)-2 | |
3653 | IF(MINT(12).EQ.22) MINT(44)=MINT(44)-1 | |
3654 | ELSEIF(MINT(11).EQ.22.AND.MINT(12).EQ.22) THEN | |
3655 | MINT(43)=4 | |
3656 | MINT(44)=1 | |
3657 | ENDIF | |
3658 | MINT(47)=2*MIN(2,MINT(45))+MIN(2,MINT(46))-2 | |
3659 | IF(MIN(MINT(45),MINT(46)).EQ.3) MINT(47)=5 | |
3660 | MINT(50)=0 | |
3661 | IF(MINT(41).EQ.2.AND.MINT(42).EQ.2) MINT(50)=1 | |
3662 | IF((MINT(11).EQ.22.OR.MINT(12).EQ.22).AND.MINT(123).GE.3) | |
3663 | &MINT(50)=0 | |
3664 | MINT(107)=0 | |
3665 | IF(MINT(11).EQ.22) THEN | |
3666 | MINT(107)=MINT(123) | |
3667 | IF(MINT(123).GE.4) MINT(107)=0 | |
3668 | IF(MINT(123).EQ.7) MINT(107)=2 | |
3669 | ENDIF | |
3670 | MINT(108)=0 | |
3671 | IF(MINT(12).EQ.22) THEN | |
3672 | MINT(108)=MINT(123) | |
3673 | IF(MINT(123).GE.4) MINT(108)=MINT(123)-3 | |
3674 | IF(MINT(123).EQ.7) MINT(108)=3 | |
3675 | ENDIF | |
3676 | ||
3677 | C...Select default processes according to incoming beams | |
3678 | C...(already done for gamma-p and gamma-gamma with MSTP(14)=10). | |
3679 | IF(MINT(121).GT.1) THEN | |
3680 | ELSEIF(MSEL.EQ.1.OR.MSEL.EQ.2) THEN | |
3681 | ||
3682 | IF(MINT(43).EQ.1) THEN | |
3683 | C...Lepton + lepton -> gamma/Z0 or W. | |
3684 | IF(MINT(11)+MINT(12).EQ.0) MSUB(1)=1 | |
3685 | IF(MINT(11)+MINT(12).NE.0) MSUB(2)=1 | |
3686 | ||
3687 | ELSEIF(MINT(43).LE.3.AND.MINT(123).EQ.0.AND. | |
3688 | & (MINT(11).EQ.22.OR.MINT(12).EQ.22)) THEN | |
3689 | C...Unresolved photon + lepton: Compton scattering. | |
3690 | MSUB(34)=1 | |
3691 | ||
3692 | ELSEIF(MINT(43).LE.3) THEN | |
3693 | C...Lepton + hadron: deep inelastic scattering. | |
3694 | MSUB(10)=1 | |
3695 | ||
3696 | ELSEIF(MINT(123).EQ.0.AND.MINT(11).EQ.22.AND. | |
3697 | & MINT(12).EQ.22) THEN | |
3698 | C...Two unresolved photons: fermion pair production. | |
3699 | MSUB(58)=1 | |
3700 | ||
3701 | ELSEIF((MINT(123).EQ.0.AND.(MINT(11).EQ.22.OR.MINT(12).EQ.22)) | |
3702 | & .OR.(MINT(123).GE.4.AND.MINT(123).LE.6.AND.MINT(11).EQ.22.AND. | |
3703 | & MINT(12).EQ.22)) THEN | |
3704 | C...Unresolved photon + hadron: photon-parton scattering. | |
3705 | MSUB(33)=1 | |
3706 | MSUB(34)=1 | |
3707 | MSUB(54)=1 | |
3708 | ||
3709 | ELSEIF(MSEL.EQ.1) THEN | |
3710 | C...High-pT QCD processes: | |
3711 | MSUB(11)=1 | |
3712 | MSUB(12)=1 | |
3713 | MSUB(13)=1 | |
3714 | MSUB(28)=1 | |
3715 | MSUB(53)=1 | |
3716 | MSUB(68)=1 | |
3717 | IF(MSTP(82).LE.1.AND.CKIN(3).LT.PARP(81)) MSUB(95)=1 | |
3718 | IF(MSTP(82).GE.2.AND.CKIN(3).LT.PARP(82)) MSUB(95)=1 | |
3719 | IF(MSUB(95).EQ.1.AND.MINT(50).EQ.0) MSUB(95)=0 | |
3720 | ||
3721 | ELSE | |
3722 | C...All QCD processes: | |
3723 | MSUB(11)=1 | |
3724 | MSUB(12)=1 | |
3725 | MSUB(13)=1 | |
3726 | MSUB(28)=1 | |
3727 | MSUB(53)=1 | |
3728 | MSUB(68)=1 | |
3729 | MSUB(91)=1 | |
3730 | MSUB(92)=1 | |
3731 | MSUB(93)=1 | |
3732 | MSUB(94)=1 | |
3733 | MSUB(95)=1 | |
3734 | ENDIF | |
3735 | ||
3736 | ELSEIF(MSEL.GE.4.AND.MSEL.LE.8) THEN | |
3737 | C...Heavy quark production. | |
3738 | MSUB(81)=1 | |
3739 | MSUB(82)=1 | |
3740 | MSUB(84)=1 | |
3741 | DO 130 J=1,MIN(8,MDCY(21,3)) | |
3742 | MDME(MDCY(21,2)+J-1,1)=0 | |
3743 | 130 CONTINUE | |
3744 | MDME(MDCY(21,2)+MSEL-1,1)=1 | |
3745 | MSUB(85)=1 | |
3746 | DO 140 J=1,MIN(12,MDCY(22,3)) | |
3747 | MDME(MDCY(22,2)+J-1,1)=0 | |
3748 | 140 CONTINUE | |
3749 | MDME(MDCY(22,2)+MSEL-1,1)=1 | |
3750 | ||
3751 | ELSEIF(MSEL.EQ.10) THEN | |
3752 | C...Prompt photon production: | |
3753 | MSUB(14)=1 | |
3754 | MSUB(18)=1 | |
3755 | MSUB(29)=1 | |
3756 | ||
3757 | ELSEIF(MSEL.EQ.11) THEN | |
3758 | C...Z0/gamma* production: | |
3759 | MSUB(1)=1 | |
3760 | ||
3761 | ELSEIF(MSEL.EQ.12) THEN | |
3762 | C...W+/- production: | |
3763 | MSUB(2)=1 | |
3764 | ||
3765 | ELSEIF(MSEL.EQ.13) THEN | |
3766 | C...Z0 + jet: | |
3767 | MSUB(15)=1 | |
3768 | MSUB(30)=1 | |
3769 | ||
3770 | ELSEIF(MSEL.EQ.14) THEN | |
3771 | C...W+/- + jet: | |
3772 | MSUB(16)=1 | |
3773 | MSUB(31)=1 | |
3774 | ||
3775 | ELSEIF(MSEL.EQ.15) THEN | |
3776 | C...Z0 & W+/- pair production: | |
3777 | MSUB(19)=1 | |
3778 | MSUB(20)=1 | |
3779 | MSUB(22)=1 | |
3780 | MSUB(23)=1 | |
3781 | MSUB(25)=1 | |
3782 | ||
3783 | ELSEIF(MSEL.EQ.16) THEN | |
3784 | C...h0 production: | |
3785 | MSUB(3)=1 | |
3786 | MSUB(102)=1 | |
3787 | MSUB(103)=1 | |
3788 | MSUB(123)=1 | |
3789 | MSUB(124)=1 | |
3790 | ||
3791 | ELSEIF(MSEL.EQ.17) THEN | |
3792 | C...h0 & Z0 or W+/- pair production: | |
3793 | MSUB(24)=1 | |
3794 | MSUB(26)=1 | |
3795 | ||
3796 | ELSEIF(MSEL.EQ.18) THEN | |
3797 | C...h0 production; interesting processes in e+e-. | |
3798 | MSUB(24)=1 | |
3799 | MSUB(103)=1 | |
3800 | MSUB(123)=1 | |
3801 | MSUB(124)=1 | |
3802 | ||
3803 | ELSEIF(MSEL.EQ.19) THEN | |
3804 | C...h0, H0 and A0 production; interesting processes in e+e-. | |
3805 | MSUB(24)=1 | |
3806 | MSUB(103)=1 | |
3807 | MSUB(123)=1 | |
3808 | MSUB(124)=1 | |
3809 | MSUB(153)=1 | |
3810 | MSUB(171)=1 | |
3811 | MSUB(173)=1 | |
3812 | MSUB(174)=1 | |
3813 | MSUB(158)=1 | |
3814 | MSUB(176)=1 | |
3815 | MSUB(178)=1 | |
3816 | MSUB(179)=1 | |
3817 | ||
3818 | ELSEIF(MSEL.EQ.21) THEN | |
3819 | C...Z'0 production: | |
3820 | MSUB(141)=1 | |
3821 | ||
3822 | ELSEIF(MSEL.EQ.22) THEN | |
3823 | C...W'+/- production: | |
3824 | MSUB(142)=1 | |
3825 | ||
3826 | ELSEIF(MSEL.EQ.23) THEN | |
3827 | C...H+/- production: | |
3828 | MSUB(143)=1 | |
3829 | ||
3830 | ELSEIF(MSEL.EQ.24) THEN | |
3831 | C...R production: | |
3832 | MSUB(144)=1 | |
3833 | ||
3834 | ELSEIF(MSEL.EQ.25) THEN | |
3835 | C...LQ (leptoquark) production. | |
3836 | MSUB(145)=1 | |
3837 | MSUB(162)=1 | |
3838 | MSUB(163)=1 | |
3839 | MSUB(164)=1 | |
3840 | ||
3841 | ELSEIF(MSEL.GE.35.AND.MSEL.LE.38) THEN | |
3842 | C...Production of one heavy quark (W exchange): | |
3843 | MSUB(83)=1 | |
3844 | DO 150 J=1,MIN(8,MDCY(21,3)) | |
3845 | MDME(MDCY(21,2)+J-1,1)=0 | |
3846 | 150 CONTINUE | |
3847 | MDME(MDCY(21,2)+MSEL-31,1)=1 | |
3848 | ||
3849 | CMRENNA++Define SUSY alternatives. | |
3850 | ELSEIF(MSEL.EQ.39) THEN | |
3851 | C...Turn on all SUSY processes. | |
3852 | IF(MINT(43).EQ.4) THEN | |
3853 | C...Hadron-hadron processes. | |
3854 | DO 160 I=201,280 | |
3855 | IF(ISET(I).GE.0) MSUB(I)=1 | |
3856 | 160 CONTINUE | |
3857 | ELSEIF(MINT(43).EQ.1) THEN | |
3858 | C...Lepton-lepton processes: QED production of squarks. | |
3859 | DO 170 I=201,214 | |
3860 | MSUB(I)=1 | |
3861 | 170 CONTINUE | |
3862 | MSUB(210)=0 | |
3863 | MSUB(211)=0 | |
3864 | MSUB(212)=0 | |
3865 | DO 180 I=216,228 | |
3866 | MSUB(I)=1 | |
3867 | 180 CONTINUE | |
3868 | DO 190 I=261,263 | |
3869 | MSUB(I)=1 | |
3870 | 190 CONTINUE | |
3871 | MSUB(277)=1 | |
3872 | MSUB(278)=1 | |
3873 | ENDIF | |
3874 | ||
3875 | ELSEIF(MSEL.EQ.40) THEN | |
3876 | C...Gluinos and squarks. | |
3877 | IF(MINT(43).EQ.4) THEN | |
3878 | MSUB(243)=1 | |
3879 | MSUB(244)=1 | |
3880 | MSUB(258)=1 | |
3881 | MSUB(259)=1 | |
3882 | MSUB(261)=1 | |
3883 | MSUB(262)=1 | |
3884 | MSUB(264)=1 | |
3885 | MSUB(265)=1 | |
3886 | DO 200 I=271,280 | |
3887 | MSUB(I)=1 | |
3888 | 200 CONTINUE | |
3889 | ELSEIF(MINT(43).EQ.1) THEN | |
3890 | MSUB(277)=1 | |
3891 | MSUB(278)=1 | |
3892 | ENDIF | |
3893 | ||
3894 | ELSEIF(MSEL.EQ.41) THEN | |
3895 | C...Stop production. | |
3896 | MSUB(261)=1 | |
3897 | MSUB(262)=1 | |
3898 | MSUB(263)=1 | |
3899 | IF(MINT(43).EQ.4) THEN | |
3900 | MSUB(264)=1 | |
3901 | MSUB(265)=1 | |
3902 | ENDIF | |
3903 | ||
3904 | ELSEIF(MSEL.EQ.42) THEN | |
3905 | C...Slepton production. | |
3906 | DO 210 I=201,214 | |
3907 | MSUB(I)=1 | |
3908 | 210 CONTINUE | |
3909 | IF(MINT(43).NE.4) THEN | |
3910 | MSUB(210)=0 | |
3911 | MSUB(211)=0 | |
3912 | MSUB(212)=0 | |
3913 | ENDIF | |
3914 | ||
3915 | ELSEIF(MSEL.EQ.43) THEN | |
3916 | C...Neutralino/Chargino + Gluino/Squark. | |
3917 | IF(MINT(43).EQ.4) THEN | |
3918 | DO 220 I=237,242 | |
3919 | MSUB(I)=1 | |
3920 | 220 CONTINUE | |
3921 | DO 230 I=246,257 | |
3922 | MSUB(I)=1 | |
3923 | 230 CONTINUE | |
3924 | ENDIF | |
3925 | ||
3926 | ELSEIF(MSEL.EQ.44) THEN | |
3927 | C...Neutralino/Chargino pair production. | |
3928 | IF(MINT(43).EQ.4) THEN | |
3929 | DO 240 I=216,236 | |
3930 | MSUB(I)=1 | |
3931 | 240 CONTINUE | |
3932 | ELSEIF(MINT(43).EQ.1) THEN | |
3933 | DO 250 I=216,228 | |
3934 | MSUB(I)=1 | |
3935 | 250 CONTINUE | |
3936 | ENDIF | |
3937 | ENDIF | |
3938 | ||
3939 | C...Find heaviest new quark flavour allowed in processes 81-84. | |
3940 | KFLQM=1 | |
3941 | DO 260 I=1,MIN(8,MDCY(21,3)) | |
3942 | IDC=I+MDCY(21,2)-1 | |
3943 | IF(MDME(IDC,1).LE.0) GOTO 260 | |
3944 | KFLQM=I | |
3945 | 260 CONTINUE | |
3946 | IF(MSTP(7).GE.1.AND.MSTP(7).LE.8.AND.(MSEL.LE.3.OR.MSEL.GE.9)) | |
3947 | &KFLQM=MSTP(7) | |
3948 | MINT(55)=KFLQM | |
3949 | KFPR(81,1)=KFLQM | |
3950 | KFPR(81,2)=KFLQM | |
3951 | KFPR(82,1)=KFLQM | |
3952 | KFPR(82,2)=KFLQM | |
3953 | KFPR(83,1)=KFLQM | |
3954 | KFPR(84,1)=KFLQM | |
3955 | KFPR(84,2)=KFLQM | |
3956 | ||
3957 | C...Find heaviest new fermion flavour allowed in process 85. | |
3958 | KFLFM=1 | |
3959 | DO 270 I=1,MIN(12,MDCY(22,3)) | |
3960 | IDC=I+MDCY(22,2)-1 | |
3961 | IF(MDME(IDC,1).LE.0) GOTO 270 | |
3962 | KFLFM=KFDP(IDC,1) | |
3963 | 270 CONTINUE | |
3964 | IF(((MSTP(7).GE.1.AND.MSTP(7).LE.8).OR.(MSTP(7).GE.11.AND. | |
3965 | &MSTP(7).LE.18)).AND.(MSEL.LE.3.OR.MSEL.GE.9)) KFLFM=MSTP(7) | |
3966 | MINT(56)=KFLFM | |
3967 | KFPR(85,1)=KFLFM | |
3968 | KFPR(85,2)=KFLFM | |
3969 | ||
3970 | RETURN | |
3971 | END | |
3972 | ||
3973 | C********************************************************************* | |
3974 | ||
3975 | C...PYXTOT | |
3976 | C...Parametrizes total, elastic and diffractive cross-sections | |
3977 | C...for different energies and beams. Donnachie-Landshoff for | |
3978 | C...total and Schuler-Sjostrand for elastic and diffractive. | |
3979 | C...Process code IPROC: | |
3980 | C...= 1 : p + p; | |
3981 | C...= 2 : pbar + p; | |
3982 | C...= 3 : pi+ + p; | |
3983 | C...= 4 : pi- + p; | |
3984 | C...= 5 : pi0 + p; | |
3985 | C...= 6 : phi + p; | |
3986 | C...= 7 : J/psi + p; | |
3987 | C...= 11 : rho + rho; | |
3988 | C...= 12 : rho + phi; | |
3989 | C...= 13 : rho + J/psi; | |
3990 | C...= 14 : phi + phi; | |
3991 | C...= 15 : phi + J/psi; | |
3992 | C...= 16 : J/psi + J/psi; | |
3993 | C...= 21 : gamma + p (DL); | |
3994 | C...= 22 : gamma + p (VDM). | |
3995 | C...= 23 : gamma + pi (DL); | |
3996 | C...= 24 : gamma + pi (VDM); | |
3997 | C...= 25 : gamma + gamma (DL); | |
3998 | C...= 26 : gamma + gamma (VDM). | |
3999 | ||
4000 | SUBROUTINE PYXTOT | |
4001 | ||
4002 | C...Double precision and integer declarations. | |
4003 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
4004 | INTEGER PYK,PYCHGE,PYCOMP | |
4005 | C...Commonblocks. | |
4006 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
4007 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
4008 | COMMON/PYINT1/MINT(400),VINT(400) | |
4009 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
4010 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
4011 | SAVE /PYDAT1/,/PYPARS/,/PYINT1/,/PYINT5/,/PYINT7/ | |
4012 | C...Local arrays. | |
4013 | DIMENSION NPROC(30),XPAR(30),YPAR(30),IHADA(20),IHADB(20), | |
4014 | &PMHAD(4),BHAD(4),BETP(4),IFITSD(20),IFITDD(20),CEFFS(10,8), | |
4015 | &CEFFD(10,9),SIGTMP(6,0:5) | |
4016 | ||
4017 | C...Common constants. | |
4018 | DATA EPS/0.0808D0/, ETA/-0.4525D0/, ALP/0.25D0/, CRES/2D0/, | |
4019 | &PMRC/1.062D0/, SMP/0.880D0/, FACEL/0.0511D0/, FACSD/0.0336D0/, | |
4020 | &FACDD/0.0084D0/ | |
4021 | ||
4022 | C...Number of multiple processes to be evaluated (= 0 : undefined). | |
4023 | DATA NPROC/7*1,3*0,6*1,4*0,4*3,2*6,4*0/ | |
4024 | C...X and Y parameters of sigmatot = X * s**epsilon + Y * s**(-eta). | |
4025 | DATA XPAR/2*21.70D0,3*13.63D0,10.01D0,0.970D0,3*0D0, | |
4026 | &8.56D0,6.29D0,0.609D0,4.62D0,0.447D0,0.0434D0,4*0D0, | |
4027 | &0.0677D0,0.0534D0,0.0425D0,0.0335D0,2.11D-4,1.31D-4,4*0D0/ | |
4028 | DATA YPAR/ | |
4029 | &56.08D0,98.39D0,27.56D0,36.02D0,31.79D0,-1.51D0,-0.146D0,3*0D0, | |
4030 | &13.08D0,-0.62D0,-0.060D0,0.030D0,-0.0028D0,0.00028D0,4*0D0, | |
4031 | &0.129D0,0.115D0,0.081D0,0.072D0,2.15D-4,1.70D-4,4*0D0/ | |
4032 | ||
4033 | C...Beam and target hadron class: | |
4034 | C...= 1 : p/n ; = 2 : pi/rho/omega; = 3 : phi; = 4 : J/psi. | |
4035 | DATA IHADA/2*1,3*2,3,4,3*0,3*2,2*3,4,4*0/ | |
4036 | DATA IHADB/7*1,3*0,2,3,4,3,2*4,4*0/ | |
4037 | C...Characteristic class masses, slope parameters, beta = sqrt(X). | |
4038 | DATA PMHAD/0.938D0,0.770D0,1.020D0,3.097D0/ | |
4039 | DATA BHAD/2.3D0,1.4D0,1.4D0,0.23D0/ | |
4040 | DATA BETP/4.658D0,2.926D0,2.149D0,0.208D0/ | |
4041 | ||
4042 | C...Fitting constants used in parametrizations of diffractive results. | |
4043 | DATA IFITSD/2*1,3*2,3,4,3*0,5,6,7,8,9,10,4*0/ | |
4044 | DATA IFITDD/2*1,3*2,3,4,3*0,5,6,7,8,9,10,4*0/ | |
4045 | DATA ((CEFFS(J1,J2),J2=1,8),J1=1,10)/ | |
4046 | &0.213D0, 0.0D0, -0.47D0, 150D0, 0.213D0, 0.0D0, -0.47D0, 150D0, | |
4047 | &0.213D0, 0.0D0, -0.47D0, 150D0, 0.267D0, 0.0D0, -0.47D0, 100D0, | |
4048 | &0.213D0, 0.0D0, -0.47D0, 150D0, 0.232D0, 0.0D0, -0.47D0, 110D0, | |
4049 | &0.213D0, 7.0D0, -0.55D0, 800D0, 0.115D0, 0.0D0, -0.47D0, 110D0, | |
4050 | &0.267D0, 0.0D0, -0.46D0, 75D0, 0.267D0, 0.0D0, -0.46D0, 75D0, | |
4051 | &0.232D0, 0.0D0, -0.46D0, 85D0, 0.267D0, 0.0D0, -0.48D0, 100D0, | |
4052 | &0.115D0, 0.0D0, -0.50D0, 90D0, 0.267D0, 6.0D0, -0.56D0, 420D0, | |
4053 | &0.232D0, 0.0D0, -0.48D0, 110D0, 0.232D0, 0.0D0, -0.48D0, 110D0, | |
4054 | &0.115D0, 0.0D0, -0.52D0, 120D0, 0.232D0, 6.0D0, -0.56D0, 470D0, | |
4055 | &0.115D0, 5.5D0, -0.58D0, 570D0, 0.115D0, 5.5D0, -0.58D0, 570D0/ | |
4056 | DATA ((CEFFD(J1,J2),J2=1,9),J1=1,10)/ | |
4057 | &3.11D0, -7.34D0, 9.71D0, 0.068D0, -0.42D0, 1.31D0, | |
4058 | &-1.37D0, 35.0D0, 118D0, 3.11D0, -7.10D0, 10.6D0, | |
4059 | &0.073D0, -0.41D0, 1.17D0, -1.41D0, 31.6D0, 95D0, | |
4060 | &3.12D0, -7.43D0, 9.21D0, 0.067D0, -0.44D0, 1.41D0, | |
4061 | &-1.35D0, 36.5D0, 132D0, 3.13D0, -8.18D0, -4.20D0, | |
4062 | &0.056D0, -0.71D0, 3.12D0, -1.12D0, 55.2D0, 1298D0, | |
4063 | &3.11D0, -6.90D0, 11.4D0, 0.078D0, -0.40D0, 1.05D0, | |
4064 | &-1.40D0, 28.4D0, 78D0, 3.11D0, -7.13D0, 10.0D0, | |
4065 | &0.071D0, -0.41D0, 1.23D0, -1.34D0, 33.1D0, 105D0, | |
4066 | &3.12D0, -7.90D0, -1.49D0, 0.054D0, -0.64D0, 2.72D0, | |
4067 | &-1.13D0, 53.1D0, 995D0, 3.11D0, -7.39D0, 8.22D0, | |
4068 | &0.065D0, -0.44D0, 1.45D0, -1.36D0, 38.1D0, 148D0, | |
4069 | &3.18D0, -8.95D0, -3.37D0, 0.057D0, -0.76D0, 3.32D0, | |
4070 | &-1.12D0, 55.6D0, 1472D0, 4.18D0, -29.2D0, 56.2D0, | |
4071 | &0.074D0, -1.36D0, 6.67D0, -1.14D0, 116.2D0, 6532D0/ | |
4072 | ||
4073 | C...Parameters. Combinations of the energy. | |
4074 | AEM=PARU(101) | |
4075 | PMTH=PARP(102) | |
4076 | S=VINT(2) | |
4077 | SRT=VINT(1) | |
4078 | SEPS=S**EPS | |
4079 | SETA=S**ETA | |
4080 | SLOG=LOG(S) | |
4081 | ||
4082 | C...Ratio of gamma/pi (for rescaling in parton distributions). | |
4083 | VINT(281)=(XPAR(22)*SEPS+YPAR(22)*SETA)/ | |
4084 | &(XPAR(5)*SEPS+YPAR(5)*SETA) | |
4085 | IF(MINT(50).NE.1) RETURN | |
4086 | ||
4087 | C...Order flavours of incoming particles: KF1 < KF2. | |
4088 | IF(IABS(MINT(11)).LE.IABS(MINT(12))) THEN | |
4089 | KF1=IABS(MINT(11)) | |
4090 | KF2=IABS(MINT(12)) | |
4091 | IORD=1 | |
4092 | ELSE | |
4093 | KF1=IABS(MINT(12)) | |
4094 | KF2=IABS(MINT(11)) | |
4095 | IORD=2 | |
4096 | ENDIF | |
4097 | ISGN12=ISIGN(1,MINT(11)*MINT(12)) | |
4098 | ||
4099 | C...Find process number (for lookup tables). | |
4100 | IF(KF1.GT.1000) THEN | |
4101 | IPROC=1 | |
4102 | IF(ISGN12.LT.0) IPROC=2 | |
4103 | ELSEIF(KF1.GT.100.AND.KF2.GT.1000) THEN | |
4104 | IPROC=3 | |
4105 | IF(ISGN12.LT.0) IPROC=4 | |
4106 | IF(KF1.EQ.111) IPROC=5 | |
4107 | ELSEIF(KF1.GT.100) THEN | |
4108 | IPROC=11 | |
4109 | ELSEIF(KF2.GT.1000) THEN | |
4110 | IPROC=21 | |
4111 | IF(MINT(123).EQ.2) IPROC=22 | |
4112 | ELSEIF(KF2.GT.100) THEN | |
4113 | IPROC=23 | |
4114 | IF(MINT(123).EQ.2) IPROC=24 | |
4115 | ELSE | |
4116 | IPROC=25 | |
4117 | IF(MINT(123).EQ.2) IPROC=26 | |
4118 | ENDIF | |
4119 | ||
4120 | C... Number of multiple processes to be stored; beam/target side. | |
4121 | NPR=NPROC(IPROC) | |
4122 | MINT(101)=1 | |
4123 | MINT(102)=1 | |
4124 | IF(NPR.EQ.3) THEN | |
4125 | MINT(100+IORD)=4 | |
4126 | ELSEIF(NPR.EQ.6) THEN | |
4127 | MINT(101)=4 | |
4128 | MINT(102)=4 | |
4129 | ENDIF | |
4130 | N1=0 | |
4131 | IF(MINT(101).EQ.4) N1=4 | |
4132 | N2=0 | |
4133 | IF(MINT(102).EQ.4) N2=4 | |
4134 | ||
4135 | C...Do not do any more for user-set or undefined cross-sections. | |
4136 | IF(MSTP(31).LE.0) RETURN | |
4137 | IF(NPR.EQ.0) CALL PYERRM(26, | |
4138 | &'(PYXTOT:) cross section for this process not yet implemented') | |
4139 | ||
4140 | C...Parameters. Combinations of the energy. | |
4141 | AEM=PARU(101) | |
4142 | PMTH=PARP(102) | |
4143 | S=VINT(2) | |
4144 | SRT=VINT(1) | |
4145 | SEPS=S**EPS | |
4146 | SETA=S**ETA | |
4147 | SLOG=LOG(S) | |
4148 | ||
4149 | C...Loop over multiple processes (for VDM). | |
4150 | DO 110 I=1,NPR | |
4151 | IF(NPR.EQ.1) THEN | |
4152 | IPR=IPROC | |
4153 | ELSEIF(NPR.EQ.3) THEN | |
4154 | IPR=I+4 | |
4155 | IF(KF2.LT.1000) IPR=I+10 | |
4156 | ELSEIF(NPR.EQ.6) THEN | |
4157 | IPR=I+10 | |
4158 | ENDIF | |
4159 | ||
4160 | C...Evaluate hadron species, mass, slope contribution and fit number. | |
4161 | IHA=IHADA(IPR) | |
4162 | IHB=IHADB(IPR) | |
4163 | PMA=PMHAD(IHA) | |
4164 | PMB=PMHAD(IHB) | |
4165 | BHA=BHAD(IHA) | |
4166 | BHB=BHAD(IHB) | |
4167 | ISD=IFITSD(IPR) | |
4168 | IDD=IFITDD(IPR) | |
4169 | ||
4170 | C...Skip if energy too low relative to masses. | |
4171 | DO 100 J=0,5 | |
4172 | SIGTMP(I,J)=0D0 | |
4173 | 100 CONTINUE | |
4174 | IF(SRT.LT.PMA+PMB+PARP(104)) GOTO 110 | |
4175 | ||
4176 | C...Total cross-section. Elastic slope parameter and cross-section. | |
4177 | SIGTMP(I,0)=XPAR(IPR)*SEPS+YPAR(IPR)*SETA | |
4178 | BEL=2D0*BHA+2D0*BHB+4D0*SEPS-4.2D0 | |
4179 | SIGTMP(I,1)=FACEL*SIGTMP(I,0)**2/BEL | |
4180 | ||
4181 | C...Diffractive scattering A + B -> X + B. | |
4182 | BSD=2D0*BHB | |
4183 | SQML=(PMA+PMTH)**2 | |
4184 | SQMU=S*CEFFS(ISD,1)+CEFFS(ISD,2) | |
4185 | SUM1=LOG((BSD+2D0*ALP*LOG(S/SQML))/ | |
4186 | & (BSD+2D0*ALP*LOG(S/SQMU)))/(2D0*ALP) | |
4187 | BXB=CEFFS(ISD,3)+CEFFS(ISD,4)/S | |
4188 | SUM2=CRES*LOG(1D0+((PMA+PMRC)/(PMA+PMTH))**2)/ | |
4189 | & (BSD+2D0*ALP*LOG(S/((PMA+PMTH)*(PMA+PMRC)))+BXB) | |
4190 | SIGTMP(I,2)=FACSD*XPAR(IPR)*BETP(IHB)*MAX(0D0,SUM1+SUM2) | |
4191 | ||
4192 | C...Diffractive scattering A + B -> A + X. | |
4193 | BSD=2D0*BHA | |
4194 | SQML=(PMB+PMTH)**2 | |
4195 | SQMU=S*CEFFS(ISD,5)+CEFFS(ISD,6) | |
4196 | SUM1=LOG((BSD+2D0*ALP*LOG(S/SQML))/ | |
4197 | & (BSD+2D0*ALP*LOG(S/SQMU)))/(2D0*ALP) | |
4198 | BAX=CEFFS(ISD,7)+CEFFS(ISD,8)/S | |
4199 | SUM2=CRES*LOG(1D0+((PMB+PMRC)/(PMB+PMTH))**2)/ | |
4200 | & (BSD+2D0*ALP*LOG(S/((PMB+PMTH)*(PMB+PMRC)))+BAX) | |
4201 | SIGTMP(I,3)=FACSD*XPAR(IPR)*BETP(IHA)*MAX(0D0,SUM1+SUM2) | |
4202 | ||
4203 | C...Order single diffractive correctly. | |
4204 | IF(IORD.EQ.2) THEN | |
4205 | SIGSAV=SIGTMP(I,2) | |
4206 | SIGTMP(I,2)=SIGTMP(I,3) | |
4207 | SIGTMP(I,3)=SIGSAV | |
4208 | ENDIF | |
4209 | ||
4210 | C...Double diffractive scattering A + B -> X1 + X2. | |
4211 | YEFF=LOG(S*SMP/((PMA+PMTH)*(PMB+PMTH))**2) | |
4212 | DEFF=CEFFD(IDD,1)+CEFFD(IDD,2)/SLOG+CEFFD(IDD,3)/SLOG**2 | |
4213 | SUM1=DEFF+YEFF*(LOG(MAX(1D-10,YEFF/DEFF))-1D0)/(2D0*ALP) | |
4214 | IF(YEFF.LE.0) SUM1=0D0 | |
4215 | SQMU=S*(CEFFD(IDD,4)+CEFFD(IDD,5)/SLOG+CEFFD(IDD,6)/SLOG**2) | |
4216 | SLUP=LOG(MAX(1.1D0,S/(ALP*(PMA+PMTH)**2*(PMB+PMTH)*(PMB+PMRC)))) | |
4217 | SLDN=LOG(MAX(1.1D0,S/(ALP*SQMU*(PMB+PMTH)*(PMB+PMRC)))) | |
4218 | SUM2=CRES*LOG(1D0+((PMB+PMRC)/(PMB+PMTH))**2)*LOG(SLUP/SLDN)/ | |
4219 | & (2D0*ALP) | |
4220 | SLUP=LOG(MAX(1.1D0,S/(ALP*(PMB+PMTH)**2*(PMA+PMTH)*(PMA+PMRC)))) | |
4221 | SLDN=LOG(MAX(1.1D0,S/(ALP*SQMU*(PMA+PMTH)*(PMA+PMRC)))) | |
4222 | SUM3=CRES*LOG(1D0+((PMA+PMRC)/(PMA+PMTH))**2)*LOG(SLUP/SLDN)/ | |
4223 | & (2D0*ALP) | |
4224 | BXX=CEFFD(IDD,7)+CEFFD(IDD,8)/SRT+CEFFD(IDD,9)/S | |
4225 | SLRR=LOG(S/(ALP*(PMA+PMTH)*(PMA+PMRC)*(PMB+PMTH)*(PMB*PMRC))) | |
4226 | SUM4=CRES**2*LOG(1D0+((PMA+PMRC)/(PMA+PMTH))**2)* | |
4227 | & LOG(1D0+((PMB+PMRC)/(PMB+PMTH))**2)/MAX(0.1D0,2D0*ALP*SLRR+BXX) | |
4228 | SIGTMP(I,4)=FACDD*XPAR(IPR)*MAX(0D0,SUM1+SUM2+SUM3+SUM4) | |
4229 | ||
4230 | C...Non-diffractive by unitarity. | |
4231 | SIGTMP(I,5)=SIGTMP(I,0)-SIGTMP(I,1)-SIGTMP(I,2)-SIGTMP(I,3)- | |
4232 | & SIGTMP(I,4) | |
4233 | 110 CONTINUE | |
4234 | ||
4235 | C...Put temporary results in output array: only one process. | |
4236 | IF(MINT(101).EQ.1.AND.MINT(102).EQ.1) THEN | |
4237 | DO 120 J=0,5 | |
4238 | SIGT(0,0,J)=SIGTMP(1,J) | |
4239 | 120 CONTINUE | |
4240 | ||
4241 | C...Beam multiple processes. | |
4242 | ELSEIF(MINT(101).EQ.4.AND.MINT(102).EQ.1) THEN | |
4243 | DO 140 I=1,4 | |
4244 | CONV=AEM/PARP(160+I) | |
4245 | I1=MAX(1,I-1) | |
4246 | DO 130 J=0,5 | |
4247 | SIGT(I,0,J)=CONV*SIGTMP(I1,J) | |
4248 | 130 CONTINUE | |
4249 | 140 CONTINUE | |
4250 | DO 150 J=0,5 | |
4251 | SIGT(0,0,J)=SIGT(1,0,J)+SIGT(2,0,J)+SIGT(3,0,J)+SIGT(4,0,J) | |
4252 | 150 CONTINUE | |
4253 | ||
4254 | C...Target multiple processes. | |
4255 | ELSEIF(MINT(101).EQ.1.AND.MINT(102).EQ.4) THEN | |
4256 | DO 170 I=1,4 | |
4257 | CONV=AEM/PARP(160+I) | |
4258 | IV=MAX(1,I-1) | |
4259 | DO 160 J=0,5 | |
4260 | SIGT(0,I,J)=CONV*SIGTMP(IV,J) | |
4261 | 160 CONTINUE | |
4262 | 170 CONTINUE | |
4263 | DO 180 J=0,5 | |
4264 | SIGT(0,0,J)=SIGT(0,1,J)+SIGT(0,2,J)+SIGT(0,3,J)+SIGT(0,4,J) | |
4265 | 180 CONTINUE | |
4266 | ||
4267 | C...Both beam and target multiple processes. | |
4268 | ELSE | |
4269 | DO 210 I1=1,4 | |
4270 | DO 200 I2=1,4 | |
4271 | CONV=AEM**2/(PARP(160+I1)*PARP(160+I2)) | |
4272 | IF(I1.LE.2) THEN | |
4273 | IV=MAX(1,I2-1) | |
4274 | ELSEIF(I2.LE.2) THEN | |
4275 | IV=MAX(1,I1-1) | |
4276 | ELSEIF(I1.EQ.I2) THEN | |
4277 | IV=2*I1-2 | |
4278 | ELSE | |
4279 | IV=5 | |
4280 | ENDIF | |
4281 | DO 190 J=0,5 | |
4282 | JV=J | |
4283 | IF(I2.GT.I1.AND.(J.EQ.2.OR.J.EQ.3)) JV=5-J | |
4284 | SIGT(I1,I2,J)=CONV*SIGTMP(IV,JV) | |
4285 | 190 CONTINUE | |
4286 | 200 CONTINUE | |
4287 | 210 CONTINUE | |
4288 | DO 230 J=0,5 | |
4289 | DO 220 I=1,4 | |
4290 | SIGT(I,0,J)=SIGT(I,1,J)+SIGT(I,2,J)+SIGT(I,3,J)+SIGT(I,4,J) | |
4291 | SIGT(0,I,J)=SIGT(1,I,J)+SIGT(2,I,J)+SIGT(3,I,J)+SIGT(4,I,J) | |
4292 | 220 CONTINUE | |
4293 | SIGT(0,0,J)=SIGT(1,0,J)+SIGT(2,0,J)+SIGT(3,0,J)+SIGT(4,0,J) | |
4294 | 230 CONTINUE | |
4295 | ENDIF | |
4296 | ||
4297 | C...Scale up uniformly for Donnachie-Landshoff parametrization. | |
4298 | IF(IPROC.EQ.21.OR.IPROC.EQ.23.OR.IPROC.EQ.25) THEN | |
4299 | RFAC=(XPAR(IPROC)*SEPS+YPAR(IPROC)*SETA)/SIGT(0,0,0) | |
4300 | DO 260 I1=0,N1 | |
4301 | DO 250 I2=0,N2 | |
4302 | DO 240 J=0,5 | |
4303 | SIGT(I1,I2,J)=RFAC*SIGT(I1,I2,J) | |
4304 | 240 CONTINUE | |
4305 | 250 CONTINUE | |
4306 | 260 CONTINUE | |
4307 | ENDIF | |
4308 | ||
4309 | RETURN | |
4310 | END | |
4311 | ||
4312 | C********************************************************************* | |
4313 | ||
4314 | C...PYMAXI | |
4315 | C...Finds optimal set of coefficients for kinematical variable selection | |
4316 | C...and the maximum of the part of the differential cross-section used | |
4317 | C...in the event weighting. | |
4318 | ||
4319 | SUBROUTINE PYMAXI | |
4320 | ||
4321 | C...Double precision and integer declarations. | |
4322 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
4323 | INTEGER PYK,PYCHGE,PYCOMP | |
4324 | C...Parameter statement to help give large particle numbers. | |
4325 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
4326 | C...Commonblocks. | |
4327 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
4328 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
4329 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
4330 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
4331 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
4332 | COMMON/PYINT1/MINT(400),VINT(400) | |
4333 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
4334 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
4335 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
4336 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
4337 | COMMON/PYINT6/PROC(0:500) | |
4338 | CHARACTER PROC*28 | |
4339 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
4340 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
4341 | &/PYINT2/,/PYINT3/,/PYINT4/,/PYINT5/,/PYINT6/,/PYINT7/ | |
4342 | C...Local arrays, character variables and data. | |
4343 | CHARACTER CVAR(4)*4 | |
4344 | DIMENSION NPTS(4),MVARPT(500,4),VINTPT(500,30),SIGSPT(500), | |
4345 | &NAREL(7),WTREL(7),WTMAT(7,7),WTRELN(7),COEFU(7),COEFO(7), | |
4346 | &IACCMX(4),SIGSMX(4),SIGSSM(3),PMMN(2) | |
4347 | DATA CVAR/'tau ','tau''','y* ','cth '/ | |
4348 | DATA SIGSSM/3*0D0/ | |
4349 | ||
4350 | C...Select subprocess to study: skip cases not applicable. | |
4351 | NPOSI=0 | |
4352 | VINT(143)=1D0 | |
4353 | VINT(144)=1D0 | |
4354 | XSEC(0,1)=0D0 | |
4355 | DO 460 ISUB=1,500 | |
4356 | MINT(51)=0 | |
4357 | IF(ISET(ISUB).EQ.11) THEN | |
4358 | XSEC(ISUB,1)=1.00001D0*COEF(ISUB,1) | |
4359 | NPOSI=NPOSI+1 | |
4360 | GOTO 450 | |
4361 | ELSEIF(ISUB.GE.91.AND.ISUB.LE.95) THEN | |
4362 | XSEC(ISUB,1)=SIGT(0,0,ISUB-90) | |
4363 | IF(MSUB(ISUB).NE.1) GOTO 460 | |
4364 | NPOSI=NPOSI+1 | |
4365 | GOTO 450 | |
4366 | ELSEIF(ISUB.EQ.96) THEN | |
4367 | IF(MINT(50).EQ.0) GOTO 460 | |
4368 | IF(MSUB(95).NE.1.AND.MSTP(81).LE.0.AND.MSTP(131).LE.0) | |
4369 | & GOTO 460 | |
4370 | IF(MINT(49).EQ.0.AND.MSTP(131).EQ.0) GOTO 460 | |
4371 | ELSEIF(ISUB.EQ.11.OR.ISUB.EQ.12.OR.ISUB.EQ.13.OR.ISUB.EQ.28.OR. | |
4372 | & ISUB.EQ.53.OR.ISUB.EQ.68) THEN | |
4373 | IF(MSUB(ISUB).NE.1.OR.MSUB(95).EQ.1) GOTO 460 | |
4374 | ELSE | |
4375 | IF(MSUB(ISUB).NE.1) GOTO 460 | |
4376 | ENDIF | |
4377 | MINT(1)=ISUB | |
4378 | ISTSB=ISET(ISUB) | |
4379 | IF(ISUB.EQ.96) ISTSB=2 | |
4380 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5000) ISUB | |
4381 | MWTXS=0 | |
4382 | IF(MSTP(142).GE.1.AND.ISUB.NE.96.AND.MSUB(91)+MSUB(92)+MSUB(93)+ | |
4383 | & MSUB(94)+MSUB(95).EQ.0) MWTXS=1 | |
4384 | ||
4385 | C...Find resonances (explicit or implicit in cross-section). | |
4386 | MINT(72)=0 | |
4387 | KFR1=0 | |
4388 | IF(ISTSB.EQ.1.OR.ISTSB.EQ.3.OR.ISTSB.EQ.5) THEN | |
4389 | KFR1=KFPR(ISUB,1) | |
4390 | ELSEIF(ISUB.EQ.24.OR.ISUB.EQ.25.OR.ISUB.EQ.110.OR.ISUB.EQ.165 | |
4391 | & .OR.ISUB.EQ.171.OR.ISUB.EQ.176) THEN | |
4392 | KFR1=23 | |
4393 | ELSEIF(ISUB.EQ.23.OR.ISUB.EQ.26.OR.ISUB.EQ.166.OR.ISUB.EQ.172 | |
4394 | & .OR.ISUB.EQ.177) THEN | |
4395 | KFR1=24 | |
4396 | ELSEIF(ISUB.GE.71.AND.ISUB.LE.77) THEN | |
4397 | KFR1=25 | |
4398 | IF(MSTP(46).EQ.5) THEN | |
4399 | KFR1=30 | |
4400 | PMAS(30,1)=PARP(45) | |
4401 | PMAS(30,2)=PARP(45)**3/(96D0*PARU(1)*PARP(47)**2) | |
4402 | ENDIF | |
4403 | ELSEIF(ISUB.EQ.194) THEN | |
4404 | KFR1=54 | |
4405 | ENDIF | |
4406 | CKMX=CKIN(2) | |
4407 | IF(CKMX.LE.0D0) CKMX=VINT(1) | |
4408 | KCR1=PYCOMP(KFR1) | |
4409 | IF(KFR1.NE.0) THEN | |
4410 | IF(CKIN(1).GT.PMAS(KCR1,1)+20D0*PMAS(KCR1,2).OR. | |
4411 | & CKMX.LT.PMAS(KCR1,1)-20D0*PMAS(KCR1,2)) KFR1=0 | |
4412 | ENDIF | |
4413 | IF(KFR1.NE.0) THEN | |
4414 | TAUR1=PMAS(KCR1,1)**2/VINT(2) | |
4415 | GAMR1=PMAS(KCR1,1)*PMAS(KCR1,2)/VINT(2) | |
4416 | MINT(72)=1 | |
4417 | MINT(73)=KFR1 | |
4418 | VINT(73)=TAUR1 | |
4419 | VINT(74)=GAMR1 | |
4420 | ENDIF | |
4421 | KFR2=0 | |
4422 | IF(ISUB.EQ.141.OR.ISUB.EQ.194) THEN | |
4423 | KFR2=23 | |
4424 | IF(ISUB.EQ.194) KFR2=56 | |
4425 | KCR2=PYCOMP(KFR2) | |
4426 | TAUR2=PMAS(KCR2,1)**2/VINT(2) | |
4427 | GAMR2=PMAS(KCR2,1)*PMAS(KCR2,2)/VINT(2) | |
4428 | IF(CKIN(1).GT.PMAS(KCR2,1)+20D0*PMAS(KCR2,2).OR. | |
4429 | & CKMX.LT.PMAS(KCR2,1)-20D0*PMAS(KCR2,2)) KFR2=0 | |
4430 | IF(KFR2.NE.0.AND.KFR1.NE.0) THEN | |
4431 | MINT(72)=2 | |
4432 | MINT(74)=KFR2 | |
4433 | VINT(75)=TAUR2 | |
4434 | VINT(76)=GAMR2 | |
4435 | ELSEIF(KFR2.NE.0) THEN | |
4436 | KFR1=KFR2 | |
4437 | TAUR1=TAUR2 | |
4438 | GAMR1=GAMR2 | |
4439 | MINT(72)=1 | |
4440 | MINT(73)=KFR1 | |
4441 | VINT(73)=TAUR1 | |
4442 | VINT(74)=GAMR1 | |
4443 | KFR2=0 | |
4444 | ENDIF | |
4445 | ENDIF | |
4446 | ||
4447 | C...Find product masses and minimum pT of process. | |
4448 | SQM3=0D0 | |
4449 | SQM4=0D0 | |
4450 | MINT(71)=0 | |
4451 | VINT(71)=CKIN(3) | |
4452 | VINT(80)=1D0 | |
4453 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) THEN | |
4454 | NBW=0 | |
4455 | DO 110 I=1,2 | |
4456 | PMMN(I)=0D0 | |
4457 | IF(KFPR(ISUB,I).EQ.0) THEN | |
4458 | ELSEIF(MSTP(42).LE.0.OR.PMAS(PYCOMP(KFPR(ISUB,I)),2).LT. | |
4459 | & PARP(41)) THEN | |
4460 | IF(I.EQ.1) SQM3=PMAS(PYCOMP(KFPR(ISUB,I)),1)**2 | |
4461 | IF(I.EQ.2) SQM4=PMAS(PYCOMP(KFPR(ISUB,I)),1)**2 | |
4462 | ELSE | |
4463 | NBW=NBW+1 | |
4464 | C...This prevents SUSY/t particles from becoming too light. | |
4465 | KFLW=KFPR(ISUB,I) | |
4466 | IF(KFLW/KSUSY1.EQ.1.OR.KFLW/KSUSY1.EQ.2) THEN | |
4467 | KCW=PYCOMP(KFLW) | |
4468 | PMMN(I)=PMAS(KCW,1) | |
4469 | DO 100 IDC=MDCY(KCW,2),MDCY(KCW,2)+MDCY(KCW,3)-1 | |
4470 | IF(MDME(IDC,1).GT.0.AND.BRAT(IDC).GT.1E-4) THEN | |
4471 | PMSUM=PMAS(PYCOMP(KFDP(IDC,1)),1)+ | |
4472 | & PMAS(PYCOMP(KFDP(IDC,2)),1) | |
4473 | IF(KFDP(IDC,3).NE.0) PMSUM=PMSUM+ | |
4474 | & PMAS(PYCOMP(KFDP(IDC,3)),1) | |
4475 | PMMN(I)=MIN(PMMN(I),PMSUM) | |
4476 | ENDIF | |
4477 | 100 CONTINUE | |
4478 | ELSEIF(KFLW.EQ.6) THEN | |
4479 | PMMN(I)=PMAS(24,1)+PMAS(5,1) | |
4480 | ENDIF | |
4481 | ENDIF | |
4482 | 110 CONTINUE | |
4483 | IF(NBW.GE.1) THEN | |
4484 | CKIN41=CKIN(41) | |
4485 | CKIN43=CKIN(43) | |
4486 | CKIN(41)=MAX(PMMN(1),CKIN(41)) | |
4487 | CKIN(43)=MAX(PMMN(2),CKIN(43)) | |
4488 | CALL PYOFSH(3,0,KFPR(ISUB,1),KFPR(ISUB,2),0D0,PQM3,PQM4) | |
4489 | CKIN(41)=CKIN41 | |
4490 | CKIN(43)=CKIN43 | |
4491 | IF(MINT(51).EQ.1) THEN | |
4492 | WRITE(MSTU(11),5100) ISUB | |
4493 | MSUB(ISUB)=0 | |
4494 | GOTO 460 | |
4495 | ENDIF | |
4496 | SQM3=PQM3**2 | |
4497 | SQM4=PQM4**2 | |
4498 | ENDIF | |
4499 | IF(MIN(SQM3,SQM4).LT.CKIN(6)**2) MINT(71)=1 | |
4500 | IF(MINT(71).EQ.1) VINT(71)=MAX(CKIN(3),CKIN(5)) | |
4501 | IF(ISUB.EQ.96.AND.MSTP(82).LE.1) VINT(71)=PARP(81) | |
4502 | IF(ISUB.EQ.96.AND.MSTP(82).GE.2) VINT(71)=0.08D0*PARP(82) | |
4503 | ENDIF | |
4504 | VINT(63)=SQM3 | |
4505 | VINT(64)=SQM4 | |
4506 | ||
4507 | C...Prepare for additional variable choices in 2 -> 3. | |
4508 | IF(ISTSB.EQ.5) THEN | |
4509 | VINT(201)=0D0 | |
4510 | IF(KFPR(ISUB,2).GT.0) VINT(201)=PMAS(PYCOMP(KFPR(ISUB,2)),1) | |
4511 | VINT(206)=VINT(201) | |
4512 | VINT(204)=PMAS(23,1) | |
4513 | IF(ISUB.EQ.124) VINT(204)=PMAS(24,1) | |
4514 | IF(ISUB.EQ.121.OR.ISUB.EQ.122.OR.ISUB.EQ.181.OR.ISUB.EQ.182 | |
4515 | & .OR.ISUB.EQ.186.OR.ISUB.EQ.187) VINT(204)=VINT(201) | |
4516 | VINT(209)=VINT(204) | |
4517 | ENDIF | |
4518 | ||
4519 | C...Number of points for each variable: tau, tau', y*, cos(theta-hat). | |
4520 | NPTS(1)=2+2*MINT(72) | |
4521 | IF(MINT(47).EQ.1) THEN | |
4522 | IF(ISTSB.EQ.1.OR.ISTSB.EQ.2) NPTS(1)=1 | |
4523 | ELSEIF(MINT(47).EQ.5) THEN | |
4524 | IF(ISTSB.LE.2.OR.ISTSB.GT.5) NPTS(1)=NPTS(1)+1 | |
4525 | ENDIF | |
4526 | NPTS(2)=1 | |
4527 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) THEN | |
4528 | IF(MINT(47).GE.2) NPTS(2)=2 | |
4529 | IF(MINT(47).EQ.5) NPTS(2)=3 | |
4530 | ENDIF | |
4531 | NPTS(3)=1 | |
4532 | IF(MINT(47).GE.4) NPTS(3)=3 | |
4533 | IF(MINT(45).EQ.3) NPTS(3)=NPTS(3)+1 | |
4534 | IF(MINT(46).EQ.3) NPTS(3)=NPTS(3)+1 | |
4535 | NPTS(4)=1 | |
4536 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) NPTS(4)=5 | |
4537 | NTRY=NPTS(1)*NPTS(2)*NPTS(3)*NPTS(4) | |
4538 | ||
4539 | C...Reset coefficients of cross-section weighting. | |
4540 | DO 120 J=1,20 | |
4541 | COEF(ISUB,J)=0D0 | |
4542 | 120 CONTINUE | |
4543 | COEF(ISUB,1)=1D0 | |
4544 | COEF(ISUB,8)=0.5D0 | |
4545 | COEF(ISUB,9)=0.5D0 | |
4546 | COEF(ISUB,13)=1D0 | |
4547 | COEF(ISUB,18)=1D0 | |
4548 | MCTH=0 | |
4549 | MTAUP=0 | |
4550 | METAUP=0 | |
4551 | VINT(23)=0D0 | |
4552 | VINT(26)=0D0 | |
4553 | SIGSAM=0D0 | |
4554 | ||
4555 | C...Find limits and select tau, y*, cos(theta-hat) and tau' values, | |
4556 | C...in grid of phase space points. | |
4557 | CALL PYKLIM(1) | |
4558 | METAU=MINT(51) | |
4559 | NACC=0 | |
4560 | DO 150 ITRY=1,NTRY | |
4561 | MINT(51)=0 | |
4562 | IF(METAU.EQ.1) GOTO 150 | |
4563 | IF(MOD(ITRY-1,NPTS(2)*NPTS(3)*NPTS(4)).EQ.0) THEN | |
4564 | MTAU=1+(ITRY-1)/(NPTS(2)*NPTS(3)*NPTS(4)) | |
4565 | IF(MTAU.GT.2+2*MINT(72)) MTAU=7 | |
4566 | RTAU=0.5D0 | |
4567 | C...Special case when both resonances have same mass, | |
4568 | C...as is often the case in process 194. | |
4569 | IF(MINT(72).EQ.2) THEN | |
4570 | IF(ABS(PMAS(KCR2,1)-PMAS(KCR1,1)).LT. | |
4571 | & 0.01D0*(PMAS(KCR2,1)+PMAS(KCR1,1))) THEN | |
4572 | IF(MTAU.EQ.3.OR.MTAU.EQ.4) THEN | |
4573 | RTAU=0.4D0 | |
4574 | ELSEIF(MTAU.EQ.5.OR.MTAU.EQ.6) THEN | |
4575 | RTAU=0.6D0 | |
4576 | ENDIF | |
4577 | ENDIF | |
4578 | ENDIF | |
4579 | CALL PYKMAP(1,MTAU,RTAU) | |
4580 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) CALL PYKLIM(4) | |
4581 | METAUP=MINT(51) | |
4582 | ENDIF | |
4583 | IF(METAUP.EQ.1) GOTO 150 | |
4584 | IF(ISTSB.GE.3.AND.ISTSB.LE.5.AND.MOD(ITRY-1,NPTS(3)*NPTS(4)) | |
4585 | & .EQ.0) THEN | |
4586 | MTAUP=1+MOD((ITRY-1)/(NPTS(3)*NPTS(4)),NPTS(2)) | |
4587 | CALL PYKMAP(4,MTAUP,0.5D0) | |
4588 | ENDIF | |
4589 | IF(MOD(ITRY-1,NPTS(3)*NPTS(4)).EQ.0) THEN | |
4590 | CALL PYKLIM(2) | |
4591 | MEYST=MINT(51) | |
4592 | ENDIF | |
4593 | IF(MEYST.EQ.1) GOTO 150 | |
4594 | IF(MOD(ITRY-1,NPTS(4)).EQ.0) THEN | |
4595 | MYST=1+MOD((ITRY-1)/NPTS(4),NPTS(3)) | |
4596 | IF(MYST.EQ.4.AND.MINT(45).NE.3) MYST=5 | |
4597 | CALL PYKMAP(2,MYST,0.5D0) | |
4598 | CALL PYKLIM(3) | |
4599 | MECTH=MINT(51) | |
4600 | ENDIF | |
4601 | IF(MECTH.EQ.1) GOTO 150 | |
4602 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) THEN | |
4603 | MCTH=1+MOD(ITRY-1,NPTS(4)) | |
4604 | CALL PYKMAP(3,MCTH,0.5D0) | |
4605 | ENDIF | |
4606 | IF(ISUB.EQ.96) VINT(25)=VINT(21)*(1D0-VINT(23)**2) | |
4607 | ||
4608 | C...Store position and limits. | |
4609 | MINT(51)=0 | |
4610 | CALL PYKLIM(0) | |
4611 | IF(MINT(51).EQ.1) GOTO 150 | |
4612 | NACC=NACC+1 | |
4613 | MVARPT(NACC,1)=MTAU | |
4614 | MVARPT(NACC,2)=MTAUP | |
4615 | MVARPT(NACC,3)=MYST | |
4616 | MVARPT(NACC,4)=MCTH | |
4617 | DO 130 J=1,30 | |
4618 | VINTPT(NACC,J)=VINT(10+J) | |
4619 | 130 CONTINUE | |
4620 | ||
4621 | C...Normal case: calculate cross-section. | |
4622 | IF(ISTSB.NE.5) THEN | |
4623 | CALL PYSIGH(NCHN,SIGS) | |
4624 | IF(MWTXS.EQ.1) THEN | |
4625 | CALL PYEVWT(WTXS) | |
4626 | SIGS=WTXS*SIGS | |
4627 | ENDIF | |
4628 | ||
4629 | C..2 -> 3: find highest value out of a number of tries. | |
4630 | ELSE | |
4631 | SIGS=0D0 | |
4632 | DO 140 IKIN3=1,MSTP(129) | |
4633 | CALL PYKMAP(5,0,0D0) | |
4634 | IF(MINT(51).EQ.1) GOTO 140 | |
4635 | CALL PYSIGH(NCHN,SIGTMP) | |
4636 | IF(MWTXS.EQ.1) THEN | |
4637 | CALL PYEVWT(WTXS) | |
4638 | SIGTMP=WTXS*SIGTMP | |
4639 | ENDIF | |
4640 | IF(SIGTMP.GT.SIGS) SIGS=SIGTMP | |
4641 | 140 CONTINUE | |
4642 | ENDIF | |
4643 | ||
4644 | C...Store cross-section. | |
4645 | SIGSPT(NACC)=SIGS | |
4646 | IF(SIGS.GT.SIGSAM) SIGSAM=SIGS | |
4647 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5200) MTAU,MYST,MCTH,MTAUP, | |
4648 | & VINT(21),VINT(22),VINT(23),VINT(26),SIGS | |
4649 | 150 CONTINUE | |
4650 | IF(NACC.EQ.0) THEN | |
4651 | WRITE(MSTU(11),5100) ISUB | |
4652 | MSUB(ISUB)=0 | |
4653 | GOTO 460 | |
4654 | ELSEIF(SIGSAM.EQ.0D0) THEN | |
4655 | WRITE(MSTU(11),5300) ISUB | |
4656 | MSUB(ISUB)=0 | |
4657 | GOTO 460 | |
4658 | ENDIF | |
4659 | IF(ISUB.NE.96) NPOSI=NPOSI+1 | |
4660 | ||
4661 | C...Calculate integrals in tau over maximal phase space limits. | |
4662 | TAUMIN=VINT(11) | |
4663 | TAUMAX=VINT(31) | |
4664 | ATAU1=LOG(TAUMAX/TAUMIN) | |
4665 | IF(NPTS(1).GE.2) THEN | |
4666 | ATAU2=(TAUMAX-TAUMIN)/(TAUMAX*TAUMIN) | |
4667 | ENDIF | |
4668 | IF(NPTS(1).GE.4) THEN | |
4669 | ATAU3=LOG(TAUMAX/TAUMIN*(TAUMIN+TAUR1)/(TAUMAX+TAUR1))/TAUR1 | |
4670 | ATAU4=(ATAN((TAUMAX-TAUR1)/GAMR1)-ATAN((TAUMIN-TAUR1)/GAMR1))/ | |
4671 | & GAMR1 | |
4672 | ENDIF | |
4673 | IF(NPTS(1).GE.6) THEN | |
4674 | ATAU5=LOG(TAUMAX/TAUMIN*(TAUMIN+TAUR2)/(TAUMAX+TAUR2))/TAUR2 | |
4675 | ATAU6=(ATAN((TAUMAX-TAUR2)/GAMR2)-ATAN((TAUMIN-TAUR2)/GAMR2))/ | |
4676 | & GAMR2 | |
4677 | ENDIF | |
4678 | IF(NPTS(1).GT.2+2*MINT(72)) THEN | |
4679 | ATAU7=LOG(MAX(2D-6,1D0-TAUMIN)/MAX(2D-6,1D0-TAUMAX)) | |
4680 | ENDIF | |
4681 | ||
4682 | C...Reset. Sum up cross-sections in points calculated. | |
4683 | DO 320 IVAR=1,4 | |
4684 | IF(NPTS(IVAR).EQ.1) GOTO 320 | |
4685 | IF(ISUB.EQ.96.AND.IVAR.EQ.4) GOTO 320 | |
4686 | NBIN=NPTS(IVAR) | |
4687 | DO 170 J1=1,NBIN | |
4688 | NAREL(J1)=0 | |
4689 | WTREL(J1)=0D0 | |
4690 | COEFU(J1)=0D0 | |
4691 | DO 160 J2=1,NBIN | |
4692 | WTMAT(J1,J2)=0D0 | |
4693 | 160 CONTINUE | |
4694 | 170 CONTINUE | |
4695 | DO 180 IACC=1,NACC | |
4696 | IBIN=MVARPT(IACC,IVAR) | |
4697 | IF(IVAR.EQ.1.AND.IBIN.EQ.7) IBIN=3+2*MINT(72) | |
4698 | IF(IVAR.EQ.3.AND.IBIN.EQ.5.AND.MINT(45).NE.3) IBIN=4 | |
4699 | NAREL(IBIN)=NAREL(IBIN)+1 | |
4700 | WTREL(IBIN)=WTREL(IBIN)+SIGSPT(IACC) | |
4701 | ||
4702 | C...Sum up tau cross-section pieces in points used. | |
4703 | IF(IVAR.EQ.1) THEN | |
4704 | TAU=VINTPT(IACC,11) | |
4705 | WTMAT(IBIN,1)=WTMAT(IBIN,1)+1D0 | |
4706 | WTMAT(IBIN,2)=WTMAT(IBIN,2)+(ATAU1/ATAU2)/TAU | |
4707 | IF(NBIN.GE.4) THEN | |
4708 | WTMAT(IBIN,3)=WTMAT(IBIN,3)+(ATAU1/ATAU3)/(TAU+TAUR1) | |
4709 | WTMAT(IBIN,4)=WTMAT(IBIN,4)+(ATAU1/ATAU4)*TAU/ | |
4710 | & ((TAU-TAUR1)**2+GAMR1**2) | |
4711 | ENDIF | |
4712 | IF(NBIN.GE.6) THEN | |
4713 | WTMAT(IBIN,5)=WTMAT(IBIN,5)+(ATAU1/ATAU5)/(TAU+TAUR2) | |
4714 | WTMAT(IBIN,6)=WTMAT(IBIN,6)+(ATAU1/ATAU6)*TAU/ | |
4715 | & ((TAU-TAUR2)**2+GAMR2**2) | |
4716 | ENDIF | |
4717 | IF(NBIN.GT.2+2*MINT(72)) THEN | |
4718 | WTMAT(IBIN,NBIN)=WTMAT(IBIN,NBIN)+(ATAU1/ATAU7)* | |
4719 | & TAU/MAX(2D-6,1D0-TAU) | |
4720 | ENDIF | |
4721 | ||
4722 | C...Sum up tau' cross-section pieces in points used. | |
4723 | ELSEIF(IVAR.EQ.2) THEN | |
4724 | TAU=VINTPT(IACC,11) | |
4725 | TAUP=VINTPT(IACC,16) | |
4726 | TAUPMN=VINTPT(IACC,6) | |
4727 | TAUPMX=VINTPT(IACC,26) | |
4728 | ATAUP1=LOG(TAUPMX/TAUPMN) | |
4729 | ATAUP2=((1D0-TAU/TAUPMX)**4-(1D0-TAU/TAUPMN)**4)/(4D0*TAU) | |
4730 | WTMAT(IBIN,1)=WTMAT(IBIN,1)+1D0 | |
4731 | WTMAT(IBIN,2)=WTMAT(IBIN,2)+(ATAUP1/ATAUP2)* | |
4732 | & (1D0-TAU/TAUP)**3/TAUP | |
4733 | IF(NBIN.GE.3) THEN | |
4734 | ATAUP3=LOG(MAX(2D-6,1D0-TAUPMN)/MAX(2D-6,1D0-TAUPMX)) | |
4735 | WTMAT(IBIN,3)=WTMAT(IBIN,3)+(ATAUP1/ATAUP3)* | |
4736 | & TAUP/MAX(2D-6,1D0-TAUP) | |
4737 | ENDIF | |
4738 | ||
4739 | C...Sum up y* cross-section pieces in points used. | |
4740 | ELSEIF(IVAR.EQ.3) THEN | |
4741 | YST=VINTPT(IACC,12) | |
4742 | YSTMIN=VINTPT(IACC,2) | |
4743 | YSTMAX=VINTPT(IACC,22) | |
4744 | AYST0=YSTMAX-YSTMIN | |
4745 | AYST1=0.5D0*(YSTMAX-YSTMIN)**2 | |
4746 | AYST2=AYST1 | |
4747 | AYST3=2D0*(ATAN(EXP(YSTMAX))-ATAN(EXP(YSTMIN))) | |
4748 | WTMAT(IBIN,1)=WTMAT(IBIN,1)+(AYST0/AYST1)*(YST-YSTMIN) | |
4749 | WTMAT(IBIN,2)=WTMAT(IBIN,2)+(AYST0/AYST2)*(YSTMAX-YST) | |
4750 | WTMAT(IBIN,3)=WTMAT(IBIN,3)+(AYST0/AYST3)/COSH(YST) | |
4751 | IF(MINT(45).EQ.3) THEN | |
4752 | TAUE=VINTPT(IACC,11) | |
4753 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUE=VINTPT(IACC,16) | |
4754 | YST0=-0.5D0*LOG(TAUE) | |
4755 | AYST4=LOG(MAX(1D-6,EXP(YST0-YSTMIN)-1D0)/ | |
4756 | & MAX(1D-6,EXP(YST0-YSTMAX)-1D0)) | |
4757 | WTMAT(IBIN,4)=WTMAT(IBIN,4)+(AYST0/AYST4)/ | |
4758 | & MAX(1D-6,1D0-EXP(YST-YST0)) | |
4759 | ENDIF | |
4760 | IF(MINT(46).EQ.3) THEN | |
4761 | TAUE=VINTPT(IACC,11) | |
4762 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUE=VINTPT(IACC,16) | |
4763 | YST0=-0.5D0*LOG(TAUE) | |
4764 | AYST5=LOG(MAX(1D-6,EXP(YST0+YSTMAX)-1D0)/ | |
4765 | & MAX(1D-6,EXP(YST0+YSTMIN)-1D0)) | |
4766 | WTMAT(IBIN,NBIN)=WTMAT(IBIN,NBIN)+(AYST0/AYST5)/ | |
4767 | & MAX(1D-6,1D0-EXP(-YST-YST0)) | |
4768 | ENDIF | |
4769 | ||
4770 | C...Sum up cos(theta-hat) cross-section pieces in points used. | |
4771 | ELSE | |
4772 | RM34=MAX(1D-20,2D0*SQM3*SQM4/(VINTPT(IACC,11)*VINT(2))**2) | |
4773 | RSQM=1D0+RM34 | |
4774 | CTHMAX=SQRT(1D0-4D0*VINT(71)**2/(TAUMAX*VINT(2))) | |
4775 | CTHMIN=-CTHMAX | |
4776 | IF(CTHMAX.GT.0.9999D0) RM34=MAX(RM34,2D0*VINT(71)**2/ | |
4777 | & (TAUMAX*VINT(2))) | |
4778 | ACTH1=CTHMAX-CTHMIN | |
4779 | ACTH2=LOG(MAX(RM34,RSQM-CTHMIN)/MAX(RM34,RSQM-CTHMAX)) | |
4780 | ACTH3=LOG(MAX(RM34,RSQM+CTHMAX)/MAX(RM34,RSQM+CTHMIN)) | |
4781 | ACTH4=1D0/MAX(RM34,RSQM-CTHMAX)-1D0/MAX(RM34,RSQM-CTHMIN) | |
4782 | ACTH5=1D0/MAX(RM34,RSQM+CTHMIN)-1D0/MAX(RM34,RSQM+CTHMAX) | |
4783 | CTH=VINTPT(IACC,13) | |
4784 | WTMAT(IBIN,1)=WTMAT(IBIN,1)+1D0 | |
4785 | WTMAT(IBIN,2)=WTMAT(IBIN,2)+(ACTH1/ACTH2)/ | |
4786 | & MAX(RM34,RSQM-CTH) | |
4787 | WTMAT(IBIN,3)=WTMAT(IBIN,3)+(ACTH1/ACTH3)/ | |
4788 | & MAX(RM34,RSQM+CTH) | |
4789 | WTMAT(IBIN,4)=WTMAT(IBIN,4)+(ACTH1/ACTH4)/ | |
4790 | & MAX(RM34,RSQM-CTH)**2 | |
4791 | WTMAT(IBIN,5)=WTMAT(IBIN,5)+(ACTH1/ACTH5)/ | |
4792 | & MAX(RM34,RSQM+CTH)**2 | |
4793 | ENDIF | |
4794 | 180 CONTINUE | |
4795 | ||
4796 | C...Check that equation system solvable. | |
4797 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5400) CVAR(IVAR) | |
4798 | MSOLV=1 | |
4799 | WTRELS=0D0 | |
4800 | DO 190 IBIN=1,NBIN | |
4801 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5500) (WTMAT(IBIN,IRED), | |
4802 | & IRED=1,NBIN),WTREL(IBIN) | |
4803 | IF(NAREL(IBIN).EQ.0) MSOLV=0 | |
4804 | WTRELS=WTRELS+WTREL(IBIN) | |
4805 | 190 CONTINUE | |
4806 | IF(ABS(WTRELS).LT.1D-20) MSOLV=0 | |
4807 | ||
4808 | C...Solve to find relative importance of cross-section pieces. | |
4809 | IF(MSOLV.EQ.1) THEN | |
4810 | DO 200 IBIN=1,NBIN | |
4811 | WTRELN(IBIN)=MAX(0.1D0,WTREL(IBIN)/WTRELS) | |
4812 | 200 CONTINUE | |
4813 | DO 230 IRED=1,NBIN-1 | |
4814 | DO 220 IBIN=IRED+1,NBIN | |
4815 | IF(ABS(WTMAT(IRED,IRED)).LT.1D-20) THEN | |
4816 | MSOLV=0 | |
4817 | GOTO 260 | |
4818 | ENDIF | |
4819 | RQT=WTMAT(IBIN,IRED)/WTMAT(IRED,IRED) | |
4820 | WTREL(IBIN)=WTREL(IBIN)-RQT*WTREL(IRED) | |
4821 | DO 210 ICOE=IRED,NBIN | |
4822 | WTMAT(IBIN,ICOE)=WTMAT(IBIN,ICOE)-RQT*WTMAT(IRED,ICOE) | |
4823 | 210 CONTINUE | |
4824 | 220 CONTINUE | |
4825 | 230 CONTINUE | |
4826 | DO 250 IRED=NBIN,1,-1 | |
4827 | DO 240 ICOE=IRED+1,NBIN | |
4828 | WTREL(IRED)=WTREL(IRED)-WTMAT(IRED,ICOE)*COEFU(ICOE) | |
4829 | 240 CONTINUE | |
4830 | COEFU(IRED)=WTREL(IRED)/WTMAT(IRED,IRED) | |
4831 | 250 CONTINUE | |
4832 | ENDIF | |
4833 | ||
4834 | C...Share evenly if failure. | |
4835 | 260 IF(MSOLV.EQ.0) THEN | |
4836 | DO 270 IBIN=1,NBIN | |
4837 | COEFU(IBIN)=1D0 | |
4838 | WTRELN(IBIN)=0.1D0 | |
4839 | IF(WTRELS.GT.0D0) WTRELN(IBIN)=MAX(0.1D0, | |
4840 | & WTREL(IBIN)/WTRELS) | |
4841 | 270 CONTINUE | |
4842 | ENDIF | |
4843 | ||
4844 | C...Normalize coefficients, with piece shared democratically. | |
4845 | COEFSU=0D0 | |
4846 | WTRELS=0D0 | |
4847 | DO 280 IBIN=1,NBIN | |
4848 | COEFU(IBIN)=MAX(0D0,COEFU(IBIN)) | |
4849 | COEFSU=COEFSU+COEFU(IBIN) | |
4850 | WTRELS=WTRELS+WTRELN(IBIN) | |
4851 | 280 CONTINUE | |
4852 | IF(COEFSU.GT.0D0) THEN | |
4853 | DO 290 IBIN=1,NBIN | |
4854 | COEFO(IBIN)=PARP(122)/NBIN+(1D0-PARP(122))*0.5D0* | |
4855 | & (COEFU(IBIN)/COEFSU+WTRELN(IBIN)/WTRELS) | |
4856 | 290 CONTINUE | |
4857 | ELSE | |
4858 | DO 300 IBIN=1,NBIN | |
4859 | COEFO(IBIN)=1D0/NBIN | |
4860 | 300 CONTINUE | |
4861 | ENDIF | |
4862 | IF(IVAR.EQ.1) IOFF=0 | |
4863 | IF(IVAR.EQ.2) IOFF=17 | |
4864 | IF(IVAR.EQ.3) IOFF=7 | |
4865 | IF(IVAR.EQ.4) IOFF=12 | |
4866 | DO 310 IBIN=1,NBIN | |
4867 | ICOF=IOFF+IBIN | |
4868 | IF(IVAR.EQ.1.AND.IBIN.GT.2+2*MINT(72)) ICOF=7 | |
4869 | IF(IVAR.EQ.3.AND.IBIN.EQ.4.AND.MINT(45).NE.3) ICOF=ICOF+1 | |
4870 | COEF(ISUB,ICOF)=COEFO(IBIN) | |
4871 | 310 CONTINUE | |
4872 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5600) CVAR(IVAR), | |
4873 | & (COEFO(IBIN),IBIN=1,NBIN) | |
4874 | 320 CONTINUE | |
4875 | ||
4876 | C...Find two most promising maxima among points previously determined. | |
4877 | DO 330 J=1,4 | |
4878 | IACCMX(J)=0 | |
4879 | SIGSMX(J)=0D0 | |
4880 | 330 CONTINUE | |
4881 | NMAX=0 | |
4882 | DO 390 IACC=1,NACC | |
4883 | DO 340 J=1,30 | |
4884 | VINT(10+J)=VINTPT(IACC,J) | |
4885 | 340 CONTINUE | |
4886 | IF(ISTSB.NE.5) THEN | |
4887 | CALL PYSIGH(NCHN,SIGS) | |
4888 | IF(MWTXS.EQ.1) THEN | |
4889 | CALL PYEVWT(WTXS) | |
4890 | SIGS=WTXS*SIGS | |
4891 | ENDIF | |
4892 | ELSE | |
4893 | SIGS=0D0 | |
4894 | DO 350 IKIN3=1,MSTP(129) | |
4895 | CALL PYKMAP(5,0,0D0) | |
4896 | IF(MINT(51).EQ.1) GOTO 350 | |
4897 | CALL PYSIGH(NCHN,SIGTMP) | |
4898 | IF(MWTXS.EQ.1) THEN | |
4899 | CALL PYEVWT(WTXS) | |
4900 | SIGTMP=WTXS*SIGTMP | |
4901 | ENDIF | |
4902 | IF(SIGTMP.GT.SIGS) SIGS=SIGTMP | |
4903 | 350 CONTINUE | |
4904 | ENDIF | |
4905 | IEQ=0 | |
4906 | DO 360 IMV=1,NMAX | |
4907 | IF(ABS(SIGS-SIGSMX(IMV)).LT.1D-4*(SIGS+SIGSMX(IMV))) IEQ=IMV | |
4908 | 360 CONTINUE | |
4909 | IF(IEQ.EQ.0) THEN | |
4910 | DO 370 IMV=NMAX,1,-1 | |
4911 | IIN=IMV+1 | |
4912 | IF(SIGS.LE.SIGSMX(IMV)) GOTO 380 | |
4913 | IACCMX(IMV+1)=IACCMX(IMV) | |
4914 | SIGSMX(IMV+1)=SIGSMX(IMV) | |
4915 | 370 CONTINUE | |
4916 | IIN=1 | |
4917 | 380 IACCMX(IIN)=IACC | |
4918 | SIGSMX(IIN)=SIGS | |
4919 | IF(NMAX.LE.1) NMAX=NMAX+1 | |
4920 | ENDIF | |
4921 | 390 CONTINUE | |
4922 | ||
4923 | C...Read out starting position for search. | |
4924 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5700) | |
4925 | SIGSAM=SIGSMX(1) | |
4926 | DO 440 IMAX=1,NMAX | |
4927 | IACC=IACCMX(IMAX) | |
4928 | MTAU=MVARPT(IACC,1) | |
4929 | MTAUP=MVARPT(IACC,2) | |
4930 | MYST=MVARPT(IACC,3) | |
4931 | MCTH=MVARPT(IACC,4) | |
4932 | VTAU=0.5D0 | |
4933 | VYST=0.5D0 | |
4934 | VCTH=0.5D0 | |
4935 | VTAUP=0.5D0 | |
4936 | ||
4937 | C...Starting point and step size in parameter space. | |
4938 | DO 430 IRPT=1,2 | |
4939 | DO 420 IVAR=1,4 | |
4940 | IF(NPTS(IVAR).EQ.1) GOTO 420 | |
4941 | IF(IVAR.EQ.1) VVAR=VTAU | |
4942 | IF(IVAR.EQ.2) VVAR=VTAUP | |
4943 | IF(IVAR.EQ.3) VVAR=VYST | |
4944 | IF(IVAR.EQ.4) VVAR=VCTH | |
4945 | IF(IVAR.EQ.1) MVAR=MTAU | |
4946 | IF(IVAR.EQ.2) MVAR=MTAUP | |
4947 | IF(IVAR.EQ.3) MVAR=MYST | |
4948 | IF(IVAR.EQ.4) MVAR=MCTH | |
4949 | IF(IRPT.EQ.1) VDEL=0.1D0 | |
4950 | IF(IRPT.EQ.2) VDEL=MAX(0.01D0,MIN(0.05D0,VVAR-0.02D0, | |
4951 | & 0.98D0-VVAR)) | |
4952 | IF(IRPT.EQ.1) VMAR=0.02D0 | |
4953 | IF(IRPT.EQ.2) VMAR=0.002D0 | |
4954 | IMOV0=1 | |
4955 | IF(IRPT.EQ.1.AND.IVAR.EQ.1) IMOV0=0 | |
4956 | DO 410 IMOV=IMOV0,8 | |
4957 | ||
4958 | C...Define new point in parameter space. | |
4959 | IF(IMOV.EQ.0) THEN | |
4960 | INEW=2 | |
4961 | VNEW=VVAR | |
4962 | ELSEIF(IMOV.EQ.1) THEN | |
4963 | INEW=3 | |
4964 | VNEW=VVAR+VDEL | |
4965 | ELSEIF(IMOV.EQ.2) THEN | |
4966 | INEW=1 | |
4967 | VNEW=VVAR-VDEL | |
4968 | ELSEIF(SIGSSM(3).GE.MAX(SIGSSM(1),SIGSSM(2)).AND. | |
4969 | & VVAR+2D0*VDEL.LT.1D0-VMAR) THEN | |
4970 | VVAR=VVAR+VDEL | |
4971 | SIGSSM(1)=SIGSSM(2) | |
4972 | SIGSSM(2)=SIGSSM(3) | |
4973 | INEW=3 | |
4974 | VNEW=VVAR+VDEL | |
4975 | ELSEIF(SIGSSM(1).GE.MAX(SIGSSM(2),SIGSSM(3)).AND. | |
4976 | & VVAR-2D0*VDEL.GT.VMAR) THEN | |
4977 | VVAR=VVAR-VDEL | |
4978 | SIGSSM(3)=SIGSSM(2) | |
4979 | SIGSSM(2)=SIGSSM(1) | |
4980 | INEW=1 | |
4981 | VNEW=VVAR-VDEL | |
4982 | ELSEIF(SIGSSM(3).GE.SIGSSM(1)) THEN | |
4983 | VDEL=0.5D0*VDEL | |
4984 | VVAR=VVAR+VDEL | |
4985 | SIGSSM(1)=SIGSSM(2) | |
4986 | INEW=2 | |
4987 | VNEW=VVAR | |
4988 | ELSE | |
4989 | VDEL=0.5D0*VDEL | |
4990 | VVAR=VVAR-VDEL | |
4991 | SIGSSM(3)=SIGSSM(2) | |
4992 | INEW=2 | |
4993 | VNEW=VVAR | |
4994 | ENDIF | |
4995 | ||
4996 | C...Convert to relevant variables and find derived new limits. | |
4997 | ILERR=0 | |
4998 | IF(IVAR.EQ.1) THEN | |
4999 | VTAU=VNEW | |
5000 | CALL PYKMAP(1,MTAU,VTAU) | |
5001 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) THEN | |
5002 | CALL PYKLIM(4) | |
5003 | IF(MINT(51).EQ.1) ILERR=1 | |
5004 | ENDIF | |
5005 | ENDIF | |
5006 | IF(IVAR.LE.2.AND.ISTSB.GE.3.AND.ISTSB.LE.5.AND. | |
5007 | & ILERR.EQ.0) THEN | |
5008 | IF(IVAR.EQ.2) VTAUP=VNEW | |
5009 | CALL PYKMAP(4,MTAUP,VTAUP) | |
5010 | ENDIF | |
5011 | IF(IVAR.LE.2.AND.ILERR.EQ.0) THEN | |
5012 | CALL PYKLIM(2) | |
5013 | IF(MINT(51).EQ.1) ILERR=1 | |
5014 | ENDIF | |
5015 | IF(IVAR.LE.3.AND.ILERR.EQ.0) THEN | |
5016 | IF(IVAR.EQ.3) VYST=VNEW | |
5017 | CALL PYKMAP(2,MYST,VYST) | |
5018 | CALL PYKLIM(3) | |
5019 | IF(MINT(51).EQ.1) ILERR=1 | |
5020 | ENDIF | |
5021 | IF((ISTSB.EQ.2.OR.ISTSB.EQ.4.OR.ISTSB.EQ.6).AND. | |
5022 | & ILERR.EQ.0) THEN | |
5023 | IF(IVAR.EQ.4) VCTH=VNEW | |
5024 | CALL PYKMAP(3,MCTH,VCTH) | |
5025 | ENDIF | |
5026 | IF(ISUB.EQ.96) VINT(25)=VINT(21)*(1.-VINT(23)**2) | |
5027 | ||
5028 | C...Evaluate cross-section. Save new maximum. Final maximum. | |
5029 | IF(ILERR.NE.0) THEN | |
5030 | SIGS=0. | |
5031 | ELSEIF(ISTSB.NE.5) THEN | |
5032 | CALL PYSIGH(NCHN,SIGS) | |
5033 | IF(MWTXS.EQ.1) THEN | |
5034 | CALL PYEVWT(WTXS) | |
5035 | SIGS=WTXS*SIGS | |
5036 | ENDIF | |
5037 | ELSE | |
5038 | SIGS=0D0 | |
5039 | DO 400 IKIN3=1,MSTP(129) | |
5040 | CALL PYKMAP(5,0,0D0) | |
5041 | IF(MINT(51).EQ.1) GOTO 400 | |
5042 | CALL PYSIGH(NCHN,SIGTMP) | |
5043 | IF(MWTXS.EQ.1) THEN | |
5044 | CALL PYEVWT(WTXS) | |
5045 | SIGTMP=WTXS*SIGTMP | |
5046 | ENDIF | |
5047 | IF(SIGTMP.GT.SIGS) SIGS=SIGTMP | |
5048 | 400 CONTINUE | |
5049 | ENDIF | |
5050 | SIGSSM(INEW)=SIGS | |
5051 | IF(SIGS.GT.SIGSAM) SIGSAM=SIGS | |
5052 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5800) IMAX,IVAR,MVAR, | |
5053 | & IMOV,VNEW,VINT(21),VINT(22),VINT(23),VINT(26),SIGS | |
5054 | 410 CONTINUE | |
5055 | 420 CONTINUE | |
5056 | 430 CONTINUE | |
5057 | 440 CONTINUE | |
5058 | IF(MSTP(121).EQ.1) SIGSAM=PARP(121)*SIGSAM | |
5059 | XSEC(ISUB,1)=1.05D0*SIGSAM | |
5060 | 450 CONTINUE | |
5061 | IF(MSTP(173).EQ.1.AND.ISUB.NE.96) XSEC(ISUB,1)= | |
5062 | & PARP(174)*XSEC(ISUB,1) | |
5063 | IF(ISUB.NE.96) XSEC(0,1)=XSEC(0,1)+XSEC(ISUB,1) | |
5064 | 460 CONTINUE | |
5065 | MINT(51)=0 | |
5066 | ||
5067 | C...Print summary table. | |
5068 | IF(NPOSI.EQ.0) THEN | |
5069 | WRITE(MSTU(11),5900) | |
5070 | STOP | |
5071 | ENDIF | |
5072 | IF(MSTP(122).GE.1) THEN | |
5073 | WRITE(MSTU(11),6000) | |
5074 | WRITE(MSTU(11),6100) | |
5075 | DO 470 ISUB=1,500 | |
5076 | IF(MSUB(ISUB).NE.1.AND.ISUB.NE.96) GOTO 470 | |
5077 | IF(ISUB.EQ.96.AND.MINT(50).EQ.0) GOTO 470 | |
5078 | IF(ISUB.EQ.96.AND.MSUB(95).NE.1.AND.MSTP(81).LE.0) GOTO 470 | |
5079 | IF(ISUB.EQ.96.AND.MINT(49).EQ.0.AND.MSTP(131).EQ.0) GOTO 470 | |
5080 | IF(MSUB(95).EQ.1.AND.(ISUB.EQ.11.OR.ISUB.EQ.12.OR.ISUB.EQ.13 | |
5081 | & .OR.ISUB.EQ.28.OR.ISUB.EQ.53.OR.ISUB.EQ.68)) GOTO 470 | |
5082 | WRITE(MSTU(11),6200) ISUB,PROC(ISUB),XSEC(ISUB,1) | |
5083 | 470 CONTINUE | |
5084 | WRITE(MSTU(11),6300) | |
5085 | ENDIF | |
5086 | ||
5087 | C...Format statements for maximization results. | |
5088 | 5000 FORMAT(/1X,'Coefficient optimization and maximum search for ', | |
5089 | &'subprocess no',I4/1X,'Coefficient modes tau',10X,'y*',9X, | |
5090 | &'cth',9X,'tau''',7X,'sigma') | |
5091 | 5100 FORMAT(1X,'Warning: requested subprocess ',I3,' has no allowed ', | |
5092 | &'phase space.'/1X,'Process switched off!') | |
5093 | 5200 FORMAT(1X,4I4,F12.8,F12.6,F12.7,F12.8,1P,D12.4) | |
5094 | 5300 FORMAT(1X,'Warning: requested subprocess ',I3,' has vanishing ', | |
5095 | &'cross-section.'/1X,'Process switched off!') | |
5096 | 5400 FORMAT(1X,'Coefficients of equation system to be solved for ',A4) | |
5097 | 5500 FORMAT(1X,1P,8D11.3) | |
5098 | 5600 FORMAT(1X,'Result for ',A4,':',7F9.4) | |
5099 | 5700 FORMAT(1X,'Maximum search for given coefficients'/2X,'MAX VAR ', | |
5100 | &'MOD MOV VNEW',7X,'tau',7X,'y*',8X,'cth',7X,'tau''',7X,'sigma') | |
5101 | 5800 FORMAT(1X,4I4,F8.4,F11.7,F9.3,F11.6,F11.7,1P,D12.4) | |
5102 | 5900 FORMAT(1X,'Error: no requested process has non-vanishing ', | |
5103 | &'cross-section.'/1X,'Execution stopped!') | |
5104 | 6000 FORMAT(/1X,8('*'),1X,'PYMAXI: summary of differential ', | |
5105 | &'cross-section maximum search',1X,8('*')) | |
5106 | 6100 FORMAT(/11X,58('=')/11X,'I',38X,'I',17X,'I'/11X,'I ISUB ', | |
5107 | &'Subprocess name',15X,'I Maximum value I'/11X,'I',38X,'I', | |
5108 | &17X,'I'/11X,58('=')/11X,'I',38X,'I',17X,'I') | |
5109 | 6200 FORMAT(11X,'I',2X,I3,3X,A28,2X,'I',2X,1P,D12.4,3X,'I') | |
5110 | 6300 FORMAT(11X,'I',38X,'I',17X,'I'/11X,58('=')) | |
5111 | ||
5112 | RETURN | |
5113 | END | |
5114 | ||
5115 | C********************************************************************* | |
5116 | ||
5117 | C...PYPILE | |
5118 | C...Initializes multiplicity distribution and selects mutliplicity | |
5119 | C...of pileup events, i.e. several events occuring at the same | |
5120 | C...beam crossing. | |
5121 | ||
5122 | SUBROUTINE PYPILE(MPILE) | |
5123 | ||
5124 | C...Double precision and integer declarations. | |
5125 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
5126 | INTEGER PYK,PYCHGE,PYCOMP | |
5127 | C...Commonblocks. | |
5128 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
5129 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
5130 | COMMON/PYINT1/MINT(400),VINT(400) | |
5131 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
5132 | SAVE /PYDAT1/,/PYPARS/,/PYINT1/,/PYINT7/ | |
5133 | C...Local arrays and saved variables. | |
5134 | DIMENSION WTI(0:200) | |
5135 | SAVE IMIN,IMAX,WTI,WTS | |
5136 | ||
5137 | C...Sum of allowed cross-sections for pileup events. | |
5138 | IF(MPILE.EQ.1) THEN | |
5139 | VINT(131)=SIGT(0,0,5) | |
5140 | IF(MSTP(132).GE.2) VINT(131)=VINT(131)+SIGT(0,0,4) | |
5141 | IF(MSTP(132).GE.3) VINT(131)=VINT(131)+SIGT(0,0,2)+SIGT(0,0,3) | |
5142 | IF(MSTP(132).GE.4) VINT(131)=VINT(131)+SIGT(0,0,1) | |
5143 | IF(MSTP(133).LE.0) RETURN | |
5144 | ||
5145 | C...Initialize multiplicity distribution at maximum. | |
5146 | XNAVE=VINT(131)*PARP(131) | |
5147 | IF(XNAVE.GT.120D0) WRITE(MSTU(11),5000) XNAVE | |
5148 | INAVE=MAX(1,MIN(200,NINT(XNAVE))) | |
5149 | WTI(INAVE)=1D0 | |
5150 | WTS=WTI(INAVE) | |
5151 | WTN=WTI(INAVE)*INAVE | |
5152 | ||
5153 | C...Find shape of multiplicity distribution below maximum. | |
5154 | IMIN=INAVE | |
5155 | DO 100 I=INAVE-1,1,-1 | |
5156 | IF(MSTP(133).EQ.1) WTI(I)=WTI(I+1)*(I+1)/XNAVE | |
5157 | IF(MSTP(133).GE.2) WTI(I)=WTI(I+1)*I/XNAVE | |
5158 | IF(WTI(I).LT.1D-6) GOTO 110 | |
5159 | WTS=WTS+WTI(I) | |
5160 | WTN=WTN+WTI(I)*I | |
5161 | IMIN=I | |
5162 | 100 CONTINUE | |
5163 | ||
5164 | C...Find shape of multiplicity distribution above maximum. | |
5165 | 110 IMAX=INAVE | |
5166 | DO 120 I=INAVE+1,200 | |
5167 | IF(MSTP(133).EQ.1) WTI(I)=WTI(I-1)*XNAVE/I | |
5168 | IF(MSTP(133).GE.2) WTI(I)=WTI(I-1)*XNAVE/(I-1) | |
5169 | IF(WTI(I).LT.1D-6) GOTO 130 | |
5170 | WTS=WTS+WTI(I) | |
5171 | WTN=WTN+WTI(I)*I | |
5172 | IMAX=I | |
5173 | 120 CONTINUE | |
5174 | 130 VINT(132)=XNAVE | |
5175 | VINT(133)=WTN/WTS | |
5176 | IF(MSTP(133).EQ.1.AND.IMIN.EQ.1) VINT(134)= | |
5177 | & WTS/(WTS+WTI(1)/XNAVE) | |
5178 | IF(MSTP(133).EQ.1.AND.IMIN.GT.1) VINT(134)=1D0 | |
5179 | IF(MSTP(133).GE.2) VINT(134)=XNAVE | |
5180 | ||
5181 | C...Pick multiplicity of pileup events. | |
5182 | ELSE | |
5183 | IF(MSTP(133).LE.0) THEN | |
5184 | MINT(81)=MAX(1,MSTP(134)) | |
5185 | ELSE | |
5186 | WTR=WTS*PYR(0) | |
5187 | DO 140 I=IMIN,IMAX | |
5188 | MINT(81)=I | |
5189 | WTR=WTR-WTI(I) | |
5190 | IF(WTR.LE.0D0) GOTO 150 | |
5191 | 140 CONTINUE | |
5192 | 150 CONTINUE | |
5193 | ENDIF | |
5194 | ENDIF | |
5195 | ||
5196 | C...Format statement for error message. | |
5197 | 5000 FORMAT(1X,'Warning: requested average number of events per bunch', | |
5198 | &'crossing too large, ',1P,D12.4) | |
5199 | ||
5200 | RETURN | |
5201 | END | |
5202 | ||
5203 | C********************************************************************* | |
5204 | ||
5205 | C...PYSAVE | |
5206 | C...Saves and restores parameter and cross section values for the | |
5207 | C...3 gamma-p and 6 gamma-gamma alnternatives. Also makes random | |
5208 | C...choice between alternatives. | |
5209 | ||
5210 | SUBROUTINE PYSAVE(ISAVE,IGA) | |
5211 | ||
5212 | C...Double precision and integer declarations. | |
5213 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
5214 | INTEGER PYK,PYCHGE,PYCOMP | |
5215 | C...Commonblocks. | |
5216 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
5217 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
5218 | COMMON/PYINT1/MINT(400),VINT(400) | |
5219 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
5220 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
5221 | SAVE /PYSUBS/,/PYPARS/,/PYINT1/,/PYINT2/,/PYINT5/ | |
5222 | C...Local arrays and saved variables. | |
5223 | DIMENSION NCP(10),NSUBCP(10,20),MSUBCP(10,20),COEFCP(10,20,20), | |
5224 | &NGENCP(10,0:20,3),XSECCP(10,0:20,3),INTCP(10,20),RECP(10,20) | |
5225 | SAVE NCP,NSUBCP,MSUBCP,COEFCP,NGENCP,XSECCP,INTCP,RECP | |
5226 | ||
5227 | C...Save list of subprocesses and cross-section information. | |
5228 | IF(ISAVE.EQ.1) THEN | |
5229 | ICP=0 | |
5230 | DO 120 I=1,500 | |
5231 | IF(MSUB(I).EQ.0.AND.I.NE.96.AND.I.NE.97) GOTO 120 | |
5232 | ICP=ICP+1 | |
5233 | NSUBCP(IGA,ICP)=I | |
5234 | MSUBCP(IGA,ICP)=MSUB(I) | |
5235 | DO 100 J=1,20 | |
5236 | COEFCP(IGA,ICP,J)=COEF(I,J) | |
5237 | 100 CONTINUE | |
5238 | DO 110 J=1,3 | |
5239 | NGENCP(IGA,ICP,J)=NGEN(I,J) | |
5240 | XSECCP(IGA,ICP,J)=XSEC(I,J) | |
5241 | 110 CONTINUE | |
5242 | 120 CONTINUE | |
5243 | NCP(IGA)=ICP | |
5244 | DO 130 J=1,3 | |
5245 | NGENCP(IGA,0,J)=NGEN(0,J) | |
5246 | XSECCP(IGA,0,J)=XSEC(0,J) | |
5247 | 130 CONTINUE | |
5248 | C...Save various common process variables. | |
5249 | DO 140 J=1,10 | |
5250 | INTCP(IGA,J)=MINT(40+J) | |
5251 | 140 CONTINUE | |
5252 | INTCP(IGA,11)=MINT(101) | |
5253 | INTCP(IGA,12)=MINT(102) | |
5254 | INTCP(IGA,13)=MINT(107) | |
5255 | INTCP(IGA,14)=MINT(108) | |
5256 | INTCP(IGA,15)=MINT(123) | |
5257 | RECP(IGA,1)=CKIN(3) | |
5258 | ||
5259 | C...Save cross-section information only. | |
5260 | ELSEIF(ISAVE.EQ.2) THEN | |
5261 | DO 160 ICP=1,NCP(IGA) | |
5262 | I=NSUBCP(IGA,ICP) | |
5263 | DO 150 J=1,3 | |
5264 | NGENCP(IGA,ICP,J)=NGEN(I,J) | |
5265 | XSECCP(IGA,ICP,J)=XSEC(I,J) | |
5266 | 150 CONTINUE | |
5267 | 160 CONTINUE | |
5268 | DO 170 J=1,3 | |
5269 | NGENCP(IGA,0,J)=NGEN(0,J) | |
5270 | XSECCP(IGA,0,J)=XSEC(0,J) | |
5271 | 170 CONTINUE | |
5272 | ||
5273 | C...Choose between allowed alternatives. | |
5274 | ELSEIF(ISAVE.EQ.3.OR.ISAVE.EQ.4) THEN | |
5275 | IF(ISAVE.EQ.4) THEN | |
5276 | XSUMCP=0D0 | |
5277 | DO 180 IG=1,MINT(121) | |
5278 | XSUMCP=XSUMCP+XSECCP(IG,0,1) | |
5279 | 180 CONTINUE | |
5280 | XSUMCP=XSUMCP*PYR(0) | |
5281 | DO 190 IG=1,MINT(121) | |
5282 | IGA=IG | |
5283 | XSUMCP=XSUMCP-XSECCP(IG,0,1) | |
5284 | IF(XSUMCP.LE.0D0) GOTO 200 | |
5285 | 190 CONTINUE | |
5286 | 200 CONTINUE | |
5287 | ENDIF | |
5288 | ||
5289 | C...Restore cross-section information. | |
5290 | DO 210 I=1,500 | |
5291 | MSUB(I)=0 | |
5292 | 210 CONTINUE | |
5293 | DO 240 ICP=1,NCP(IGA) | |
5294 | I=NSUBCP(IGA,ICP) | |
5295 | MSUB(I)=MSUBCP(IGA,ICP) | |
5296 | DO 220 J=1,20 | |
5297 | COEF(I,J)=COEFCP(IGA,ICP,J) | |
5298 | 220 CONTINUE | |
5299 | DO 230 J=1,3 | |
5300 | NGEN(I,J)=NGENCP(IGA,ICP,J) | |
5301 | XSEC(I,J)=XSECCP(IGA,ICP,J) | |
5302 | 230 CONTINUE | |
5303 | 240 CONTINUE | |
5304 | DO 250 J=1,3 | |
5305 | NGEN(0,J)=NGENCP(IGA,0,J) | |
5306 | XSEC(0,J)=XSECCP(IGA,0,J) | |
5307 | 250 CONTINUE | |
5308 | ||
5309 | C...Restore various common process variables. | |
5310 | DO 260 J=1,10 | |
5311 | MINT(40+J)=INTCP(IGA,J) | |
5312 | 260 CONTINUE | |
5313 | MINT(101)=INTCP(IGA,11) | |
5314 | MINT(102)=INTCP(IGA,12) | |
5315 | MINT(107)=INTCP(IGA,13) | |
5316 | MINT(108)=INTCP(IGA,14) | |
5317 | MINT(123)=INTCP(IGA,15) | |
5318 | CKIN(3)=RECP(IGA,1) | |
5319 | CKIN(1)=2D0*CKIN(3) | |
5320 | ||
5321 | C...Sum up cross-section info (for PYSTAT). | |
5322 | ELSEIF(ISAVE.EQ.5) THEN | |
5323 | DO 270 I=1,500 | |
5324 | MSUB(I)=0 | |
5325 | NGEN(I,1)=0 | |
5326 | NGEN(I,3)=0 | |
5327 | XSEC(I,3)=0D0 | |
5328 | 270 CONTINUE | |
5329 | NGEN(0,1)=0 | |
5330 | NGEN(0,2)=0 | |
5331 | NGEN(0,3)=0 | |
5332 | XSEC(0,3)=0 | |
5333 | DO 290 IG=1,MINT(121) | |
5334 | DO 280 ICP=1,NCP(IG) | |
5335 | I=NSUBCP(IG,ICP) | |
5336 | IF(MSUBCP(IG,ICP).EQ.1) MSUB(I)=1 | |
5337 | NGEN(I,1)=NGEN(I,1)+NGENCP(IG,ICP,1) | |
5338 | NGEN(I,3)=NGEN(I,3)+NGENCP(IG,ICP,3) | |
5339 | XSEC(I,3)=XSEC(I,3)+XSECCP(IG,ICP,3) | |
5340 | 280 CONTINUE | |
5341 | NGEN(0,1)=NGEN(0,1)+NGENCP(IG,0,1) | |
5342 | NGEN(0,2)=NGEN(0,2)+NGENCP(IG,0,2) | |
5343 | NGEN(0,3)=NGEN(0,3)+NGENCP(IG,0,3) | |
5344 | XSEC(0,3)=XSEC(0,3)+XSECCP(IG,0,3) | |
5345 | 290 CONTINUE | |
5346 | ENDIF | |
5347 | ||
5348 | RETURN | |
5349 | END | |
5350 | ||
5351 | C********************************************************************* | |
5352 | ||
5353 | C...PYRAND | |
5354 | C...Generates quantities characterizing the high-pT scattering at the | |
5355 | C...parton level according to the matrix elements. Chooses incoming, | |
5356 | C...reacting partons, their momentum fractions and one of the possible | |
5357 | C...subprocesses. | |
5358 | ||
5359 | SUBROUTINE PYRAND | |
5360 | ||
5361 | C...Double precision and integer declarations. | |
5362 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
5363 | INTEGER PYK,PYCHGE,PYCOMP | |
5364 | C...Parameter statement to help give large particle numbers. | |
5365 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
5366 | C...Commonblocks. | |
5367 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
5368 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
5369 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
5370 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
5371 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
5372 | COMMON/PYINT1/MINT(400),VINT(400) | |
5373 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
5374 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
5375 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
5376 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
5377 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
5378 | COMMON/PYUPPR/NUP,KUP(20,7),NFUP,IFUP(10,2),PUP(20,5),Q2UP(0:10) | |
5379 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
5380 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
5381 | &/PYINT2/,/PYINT3/,/PYINT4/,/PYINT5/,/PYINT7/,/PYUPPR/,/PYMSSM/ | |
5382 | C...Local arrays. | |
5383 | DIMENSION XPQ(-25:25),PMM(2),PDIF(4),BHAD(4),PMMN(2) | |
5384 | ||
5385 | C...Parameters and data used in elastic/diffractive treatment. | |
5386 | DATA EPS/0.0808D0/, ALP/0.25D0/, CRES/2D0/, PMRC/1.062D0/, | |
5387 | &SMP/0.880D0/, BHAD/2.3D0,1.4D0,1.4D0,0.23D0/ | |
5388 | ||
5389 | C...Initial values, specifically for (first) semihard interaction. | |
5390 | MINT(10)=0 | |
5391 | MINT(17)=0 | |
5392 | MINT(18)=0 | |
5393 | VINT(143)=1D0 | |
5394 | VINT(144)=1D0 | |
5395 | MFAIL=0 | |
5396 | IF(MSTP(171).EQ.1.AND.MSTP(172).EQ.2) MFAIL=1 | |
5397 | ISUB=0 | |
5398 | LOOP=0 | |
5399 | 100 LOOP=LOOP+1 | |
5400 | MINT(51)=0 | |
5401 | ||
5402 | C...Choice of process type - first event of pileup. | |
5403 | IF(MINT(82).EQ.1.AND.(ISUB.LE.90.OR.ISUB.GT.96)) THEN | |
5404 | ||
5405 | C...For gamma-p or gamma-gamma first pick between alternatives. | |
5406 | IF(MINT(121).GT.1) CALL PYSAVE(4,IGA) | |
5407 | MINT(122)=IGA | |
5408 | ||
5409 | C...For gamma + gamma with different nature, flip at random. | |
5410 | IF(MINT(11).EQ.22.AND.MINT(12).EQ.22.AND.MINT(123).GE.4.AND. | |
5411 | & PYR(0).GT.0.5D0) THEN | |
5412 | MINTSV=MINT(41) | |
5413 | MINT(41)=MINT(42) | |
5414 | MINT(42)=MINTSV | |
5415 | MINTSV=MINT(45) | |
5416 | MINT(45)=MINT(46) | |
5417 | MINT(46)=MINTSV | |
5418 | MINTSV=MINT(107) | |
5419 | MINT(107)=MINT(108) | |
5420 | MINT(108)=MINTSV | |
5421 | IF(MINT(47).EQ.2.OR.MINT(47).EQ.3) MINT(47)=5-MINT(47) | |
5422 | ENDIF | |
5423 | ||
5424 | C...Pick process type. | |
5425 | RSUB=XSEC(0,1)*PYR(0) | |
5426 | DO 110 I=1,500 | |
5427 | IF(MSUB(I).NE.1) GOTO 110 | |
5428 | ISUB=I | |
5429 | RSUB=RSUB-XSEC(I,1) | |
5430 | IF(RSUB.LE.0D0) GOTO 120 | |
5431 | 110 CONTINUE | |
5432 | 120 IF(ISUB.EQ.95) ISUB=96 | |
5433 | IF(ISUB.EQ.96) CALL PYMULT(2) | |
5434 | ||
5435 | C...Choice of inclusive process type - pileup events. | |
5436 | ELSEIF(MINT(82).GE.2.AND.ISUB.EQ.0) THEN | |
5437 | RSUB=VINT(131)*PYR(0) | |
5438 | ISUB=96 | |
5439 | IF(RSUB.GT.SIGT(0,0,5)) ISUB=94 | |
5440 | IF(RSUB.GT.SIGT(0,0,5)+SIGT(0,0,4)) ISUB=93 | |
5441 | IF(RSUB.GT.SIGT(0,0,5)+SIGT(0,0,4)+SIGT(0,0,3)) ISUB=92 | |
5442 | IF(RSUB.GT.SIGT(0,0,5)+SIGT(0,0,4)+SIGT(0,0,3)+SIGT(0,0,2)) | |
5443 | & ISUB=91 | |
5444 | IF(ISUB.EQ.96) CALL PYMULT(2) | |
5445 | ENDIF | |
5446 | IF(MINT(82).EQ.1) NGEN(0,1)=NGEN(0,1)+1 | |
5447 | IF(MINT(82).EQ.1) NGEN(ISUB,1)=NGEN(ISUB,1)+1 | |
5448 | IF(ISUB.EQ.96.AND.LOOP.EQ.1.AND.MINT(82).EQ.1) | |
5449 | &NGEN(97,1)=NGEN(97,1)+1 | |
5450 | MINT(1)=ISUB | |
5451 | ISTSB=ISET(ISUB) | |
5452 | ||
5453 | C...Random choice of flavour for some SUSY processes. | |
5454 | IF(ISUB.GE.201.AND.ISUB.LE.280) THEN | |
5455 | C...~e_L ~nu_e or ~mu_L ~nu_mu. | |
5456 | IF(ISUB.EQ.210) THEN | |
5457 | KFPR(ISUB,1)=KSUSY1+11+2*INT(0.5D0+PYR(0)) | |
5458 | KFPR(ISUB,2)=KFPR(ISUB,1)+1 | |
5459 | C...~nu_e ~nu_e(bar) or ~nu_mu ~nu_mu(bar). | |
5460 | ELSEIF(ISUB.EQ.213) THEN | |
5461 | KFPR(ISUB,1)=KSUSY1+12+2*INT(0.5D0+PYR(0)) | |
5462 | KFPR(ISUB,2)=KFPR(ISUB,1) | |
5463 | C...~q ~chi/~g; ~q = ~d, ~u, ~s, ~c or ~b. | |
5464 | ELSEIF(ISUB.GE.246.AND.ISUB.LE.259) THEN | |
5465 | IF(MOD(ISUB,2).EQ.0) THEN | |
5466 | KFPR(ISUB,1)=KSUSY1+1+INT(5D0*PYR(0)) | |
5467 | ELSE | |
5468 | KFPR(ISUB,1)=KSUSY2+1+INT(5D0*PYR(0)) | |
5469 | ENDIF | |
5470 | C...~q1 ~q2; ~q = ~d, ~u, ~s, ~c or ~b. | |
5471 | ELSEIF(ISUB.GE.271.AND.ISUB.LE.276) THEN | |
5472 | IF(ISUB.EQ.271.OR.ISUB.EQ.274) THEN | |
5473 | KSU1=KSUSY1 | |
5474 | KSU2=KSUSY1 | |
5475 | ELSEIF(ISUB.EQ.272.OR.ISUB.EQ.275) THEN | |
5476 | KSU1=KSUSY2 | |
5477 | KSU2=KSUSY2 | |
5478 | ELSEIF(PYR(0).LT.0.5D0) THEN | |
5479 | KSU1=KSUSY1 | |
5480 | KSU2=KSUSY2 | |
5481 | ELSE | |
5482 | KSU1=KSUSY2 | |
5483 | KSU2=KSUSY1 | |
5484 | ENDIF | |
5485 | KFPR(ISUB,1)=KSU1+1+INT(5D0*PYR(0)) | |
5486 | KFPR(ISUB,2)=KSU2+1+INT(5D0*PYR(0)) | |
5487 | C...~q ~q(bar); ~q = ~d, ~u, ~s, ~c or ~b. | |
5488 | ELSEIF(ISUB.EQ.277.OR.ISUB.EQ.279) THEN | |
5489 | KFPR(ISUB,1)=KSUSY1+1+INT(5D0*PYR(0)) | |
5490 | KFPR(ISUB,2)=KFPR(ISUB,1) | |
5491 | ELSEIF(ISUB.EQ.278.OR.ISUB.EQ.280) THEN | |
5492 | KFPR(ISUB,1)=KSUSY2+1+INT(5D0*PYR(0)) | |
5493 | KFPR(ISUB,2)=KFPR(ISUB,1) | |
5494 | ENDIF | |
5495 | ENDIF | |
5496 | ||
5497 | C...Find resonances (explicit or implicit in cross-section). | |
5498 | MINT(72)=0 | |
5499 | KFR1=0 | |
5500 | IF(ISTSB.EQ.1.OR.ISTSB.EQ.3.OR.ISTSB.EQ.5) THEN | |
5501 | KFR1=KFPR(ISUB,1) | |
5502 | ELSEIF(ISUB.EQ.24.OR.ISUB.EQ.25.OR.ISUB.EQ.110.OR.ISUB.EQ.165.OR. | |
5503 | & ISUB.EQ.171.OR.ISUB.EQ.176) THEN | |
5504 | KFR1=23 | |
5505 | ELSEIF(ISUB.EQ.23.OR.ISUB.EQ.26.OR.ISUB.EQ.166.OR.ISUB.EQ.172.OR. | |
5506 | & ISUB.EQ.177) THEN | |
5507 | KFR1=24 | |
5508 | ELSEIF(ISUB.GE.71.AND.ISUB.LE.77) THEN | |
5509 | KFR1=25 | |
5510 | IF(MSTP(46).EQ.5) THEN | |
5511 | KFR1=30 | |
5512 | PMAS(30,1)=PARP(45) | |
5513 | PMAS(30,2)=PARP(45)**3/(96D0*PARU(1)*PARP(47)**2) | |
5514 | ENDIF | |
5515 | ELSEIF(ISUB.EQ.194) THEN | |
5516 | KFR1=54 | |
5517 | ENDIF | |
5518 | CKMX=CKIN(2) | |
5519 | IF(CKMX.LE.0D0) CKMX=VINT(1) | |
5520 | KCR1=PYCOMP(KFR1) | |
5521 | IF(KFR1.NE.0) THEN | |
5522 | IF(CKIN(1).GT.PMAS(KCR1,1)+20D0*PMAS(KCR1,2).OR. | |
5523 | & CKMX.LT.PMAS(KCR1,1)-20D0*PMAS(KCR1,2)) KFR1=0 | |
5524 | ENDIF | |
5525 | IF(KFR1.NE.0) THEN | |
5526 | TAUR1=PMAS(KCR1,1)**2/VINT(2) | |
5527 | GAMR1=PMAS(KCR1,1)*PMAS(KCR1,2)/VINT(2) | |
5528 | MINT(72)=1 | |
5529 | MINT(73)=KFR1 | |
5530 | VINT(73)=TAUR1 | |
5531 | VINT(74)=GAMR1 | |
5532 | ENDIF | |
5533 | IF(ISUB.EQ.141.OR.ISUB.EQ.194) THEN | |
5534 | KFR2=23 | |
5535 | IF(ISUB.EQ.194) KFR2=56 | |
5536 | KCR2=PYCOMP(KFR2) | |
5537 | TAUR2=PMAS(KCR2,1)**2/VINT(2) | |
5538 | GAMR2=PMAS(KCR2,1)*PMAS(KCR2,2)/VINT(2) | |
5539 | IF(CKIN(1).GT.PMAS(KCR2,1)+20D0*PMAS(KCR2,2).OR. | |
5540 | & CKMX.LT.PMAS(KCR2,1)-20D0*PMAS(KCR2,2)) KFR2=0 | |
5541 | IF(KFR2.NE.0.AND.KFR1.NE.0) THEN | |
5542 | MINT(72)=2 | |
5543 | MINT(74)=KFR2 | |
5544 | VINT(75)=TAUR2 | |
5545 | VINT(76)=GAMR2 | |
5546 | ELSEIF(KFR2.NE.0) THEN | |
5547 | KFR1=KFR2 | |
5548 | TAUR1=TAUR2 | |
5549 | GAMR1=GAMR2 | |
5550 | MINT(72)=1 | |
5551 | MINT(73)=KFR1 | |
5552 | VINT(73)=TAUR1 | |
5553 | VINT(74)=GAMR1 | |
5554 | ENDIF | |
5555 | ENDIF | |
5556 | ||
5557 | C...Find product masses and minimum pT of process, | |
5558 | C...optionally with broadening according to a truncated Breit-Wigner. | |
5559 | VINT(63)=0D0 | |
5560 | VINT(64)=0D0 | |
5561 | MINT(71)=0 | |
5562 | VINT(71)=CKIN(3) | |
5563 | IF(MINT(82).GE.2) VINT(71)=0D0 | |
5564 | VINT(80)=1D0 | |
5565 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) THEN | |
5566 | NBW=0 | |
5567 | DO 140 I=1,2 | |
5568 | PMMN(I)=0D0 | |
5569 | IF(KFPR(ISUB,I).EQ.0) THEN | |
5570 | ELSEIF(MSTP(42).LE.0.OR.PMAS(PYCOMP(KFPR(ISUB,I)),2).LT. | |
5571 | & PARP(41)) THEN | |
5572 | VINT(62+I)=PMAS(PYCOMP(KFPR(ISUB,I)),1)**2 | |
5573 | ELSE | |
5574 | NBW=NBW+1 | |
5575 | C...This prevents SUSY/t particles from becoming too light. | |
5576 | KFLW=KFPR(ISUB,I) | |
5577 | IF(KFLW/KSUSY1.EQ.1.OR.KFLW/KSUSY1.EQ.2) THEN | |
5578 | KCW=PYCOMP(KFLW) | |
5579 | PMMN(I)=PMAS(KCW,1) | |
5580 | DO 130 IDC=MDCY(KCW,2),MDCY(KCW,2)+MDCY(KCW,3)-1 | |
5581 | IF(MDME(IDC,1).GT.0.AND.BRAT(IDC).GT.1E-4) THEN | |
5582 | PMSUM=PMAS(PYCOMP(KFDP(IDC,1)),1)+ | |
5583 | & PMAS(PYCOMP(KFDP(IDC,2)),1) | |
5584 | IF(KFDP(IDC,3).NE.0) PMSUM=PMSUM+ | |
5585 | & PMAS(PYCOMP(KFDP(IDC,3)),1) | |
5586 | PMMN(I)=MIN(PMMN(I),PMSUM) | |
5587 | ENDIF | |
5588 | 130 CONTINUE | |
5589 | ELSEIF(KFLW.EQ.6) THEN | |
5590 | PMMN(I)=PMAS(24,1)+PMAS(5,1) | |
5591 | ENDIF | |
5592 | ENDIF | |
5593 | 140 CONTINUE | |
5594 | IF(NBW.GE.1) THEN | |
5595 | CKIN41=CKIN(41) | |
5596 | CKIN43=CKIN(43) | |
5597 | CKIN(41)=MAX(PMMN(1),CKIN(41)) | |
5598 | CKIN(43)=MAX(PMMN(2),CKIN(43)) | |
5599 | CALL PYOFSH(4,0,KFPR(ISUB,1),KFPR(ISUB,2),0D0,PQM3,PQM4) | |
5600 | CKIN(41)=CKIN41 | |
5601 | CKIN(43)=CKIN43 | |
5602 | IF(MINT(51).EQ.1) THEN | |
5603 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5604 | IF(MFAIL.EQ.1) THEN | |
5605 | MSTI(61)=1 | |
5606 | RETURN | |
5607 | ENDIF | |
5608 | GOTO 100 | |
5609 | ENDIF | |
5610 | VINT(63)=PQM3**2 | |
5611 | VINT(64)=PQM4**2 | |
5612 | ENDIF | |
5613 | IF(MIN(VINT(63),VINT(64)).LT.CKIN(6)**2) MINT(71)=1 | |
5614 | IF(MINT(71).EQ.1) VINT(71)=MAX(CKIN(3),CKIN(5)) | |
5615 | ENDIF | |
5616 | ||
5617 | C...Prepare for additional variable choices in 2 -> 3. | |
5618 | IF(ISTSB.EQ.5) THEN | |
5619 | VINT(201)=0D0 | |
5620 | IF(KFPR(ISUB,2).GT.0) VINT(201)=PMAS(PYCOMP(KFPR(ISUB,2)),1) | |
5621 | VINT(206)=VINT(201) | |
5622 | VINT(204)=PMAS(23,1) | |
5623 | IF(ISUB.EQ.124) VINT(204)=PMAS(24,1) | |
5624 | IF(ISUB.EQ.121.OR.ISUB.EQ.122.OR.ISUB.EQ.181.OR.ISUB.EQ.182.OR. | |
5625 | & ISUB.EQ.186.OR.ISUB.EQ.187) VINT(204)=VINT(201) | |
5626 | VINT(209)=VINT(204) | |
5627 | ENDIF | |
5628 | ||
5629 | C...Select incoming VDM particle (rho/omega/phi/J/psi). | |
5630 | IF(ISTSB.NE.0.AND.(MINT(101).GE.2.OR.MINT(102).GE.2).AND. | |
5631 | &(MINT(123).EQ.2.OR.MINT(123).EQ.5.OR.MINT(123).EQ.7)) THEN | |
5632 | VRN=PYR(0)*SIGT(0,0,5) | |
5633 | IF(MINT(101).LE.1) THEN | |
5634 | I1MN=0 | |
5635 | I1MX=0 | |
5636 | ELSE | |
5637 | I1MN=1 | |
5638 | I1MX=MINT(101) | |
5639 | ENDIF | |
5640 | IF(MINT(102).LE.1) THEN | |
5641 | I2MN=0 | |
5642 | I2MX=0 | |
5643 | ELSE | |
5644 | I2MN=1 | |
5645 | I2MX=MINT(102) | |
5646 | ENDIF | |
5647 | DO 160 I1=I1MN,I1MX | |
5648 | KFV1=110*I1+3 | |
5649 | DO 150 I2=I2MN,I2MX | |
5650 | KFV2=110*I2+3 | |
5651 | VRN=VRN-SIGT(I1,I2,5) | |
5652 | IF(VRN.LE.0D0) GOTO 170 | |
5653 | 150 CONTINUE | |
5654 | 160 CONTINUE | |
5655 | 170 IF(MINT(101).GE.2) MINT(103)=KFV1 | |
5656 | IF(MINT(102).GE.2) MINT(104)=KFV2 | |
5657 | ENDIF | |
5658 | ||
5659 | IF(ISTSB.EQ.0) THEN | |
5660 | C...Elastic scattering or single or double diffractive scattering. | |
5661 | ||
5662 | C...Select incoming particle (rho/omega/phi/J/psi for VDM) and mass. | |
5663 | MINT(103)=MINT(11) | |
5664 | MINT(104)=MINT(12) | |
5665 | PMM(1)=VINT(3) | |
5666 | PMM(2)=VINT(4) | |
5667 | IF(MINT(101).GE.2.OR.MINT(102).GE.2) THEN | |
5668 | JJ=ISUB-90 | |
5669 | VRN=PYR(0)*SIGT(0,0,JJ) | |
5670 | IF(MINT(101).LE.1) THEN | |
5671 | I1MN=0 | |
5672 | I1MX=0 | |
5673 | ELSE | |
5674 | I1MN=1 | |
5675 | I1MX=MINT(101) | |
5676 | ENDIF | |
5677 | IF(MINT(102).LE.1) THEN | |
5678 | I2MN=0 | |
5679 | I2MX=0 | |
5680 | ELSE | |
5681 | I2MN=1 | |
5682 | I2MX=MINT(102) | |
5683 | ENDIF | |
5684 | DO 190 I1=I1MN,I1MX | |
5685 | KFV1=110*I1+3 | |
5686 | DO 180 I2=I2MN,I2MX | |
5687 | KFV2=110*I2+3 | |
5688 | VRN=VRN-SIGT(I1,I2,JJ) | |
5689 | IF(VRN.LE.0D0) GOTO 200 | |
5690 | 180 CONTINUE | |
5691 | 190 CONTINUE | |
5692 | 200 IF(MINT(101).GE.2) THEN | |
5693 | MINT(103)=KFV1 | |
5694 | PMM(1)=PYMASS(KFV1) | |
5695 | ENDIF | |
5696 | IF(MINT(102).GE.2) THEN | |
5697 | MINT(104)=KFV2 | |
5698 | PMM(2)=PYMASS(KFV2) | |
5699 | ENDIF | |
5700 | ENDIF | |
5701 | ||
5702 | C...Side/sides of diffractive system. | |
5703 | MINT(17)=0 | |
5704 | MINT(18)=0 | |
5705 | IF(ISUB.EQ.92.OR.ISUB.EQ.94) MINT(17)=1 | |
5706 | IF(ISUB.EQ.93.OR.ISUB.EQ.94) MINT(18)=1 | |
5707 | ||
5708 | C...Find masses of particles and minimal masses of diffractive states. | |
5709 | DO 210 JT=1,2 | |
5710 | PDIF(JT)=PMM(JT) | |
5711 | VINT(66+JT)=PDIF(JT) | |
5712 | IF(MINT(16+JT).EQ.1) PDIF(JT)=PDIF(JT)+PARP(102) | |
5713 | 210 CONTINUE | |
5714 | SH=VINT(2) | |
5715 | SQM1=PMM(1)**2 | |
5716 | SQM2=PMM(2)**2 | |
5717 | SQM3=PDIF(1)**2 | |
5718 | SQM4=PDIF(2)**2 | |
5719 | SMRES1=(PMM(1)+PMRC)**2 | |
5720 | SMRES2=(PMM(2)+PMRC)**2 | |
5721 | ||
5722 | C...Find elastic slope and lower limit diffractive slope. | |
5723 | IHA=MAX(2,IABS(MINT(103))/110) | |
5724 | IF(IHA.GE.5) IHA=1 | |
5725 | IHB=MAX(2,IABS(MINT(104))/110) | |
5726 | IF(IHB.GE.5) IHB=1 | |
5727 | IF(ISUB.EQ.91) THEN | |
5728 | BMN=2D0*BHAD(IHA)+2D0*BHAD(IHB)+4D0*SH**EPS-4.2D0 | |
5729 | ELSEIF(ISUB.EQ.92) THEN | |
5730 | BMN=MAX(2D0,2D0*BHAD(IHB)) | |
5731 | ELSEIF(ISUB.EQ.93) THEN | |
5732 | BMN=MAX(2D0,2D0*BHAD(IHA)) | |
5733 | ELSEIF(ISUB.EQ.94) THEN | |
5734 | BMN=2D0*ALP*4D0 | |
5735 | ENDIF | |
5736 | ||
5737 | C...Determine maximum possible t range and coefficient of generation. | |
5738 | SQLA12=(SH-SQM1-SQM2)**2-4D0*SQM1*SQM2 | |
5739 | SQLA34=(SH-SQM3-SQM4)**2-4D0*SQM3*SQM4 | |
5740 | THA=SH-(SQM1+SQM2+SQM3+SQM4)+(SQM1-SQM2)*(SQM3-SQM4)/SH | |
5741 | THB=SQRT(MAX(0D0,SQLA12))*SQRT(MAX(0D0,SQLA34))/SH | |
5742 | THC=(SQM3-SQM1)*(SQM4-SQM2)+(SQM1+SQM4-SQM2-SQM3)* | |
5743 | & (SQM1*SQM4-SQM2*SQM3)/SH | |
5744 | THL=-0.5D0*(THA+THB) | |
5745 | THU=THC/THL | |
5746 | THRND=EXP(MAX(-50D0,BMN*(THL-THU)))-1D0 | |
5747 | ||
5748 | C...Select diffractive mass/masses according to dm^2/m^2. | |
5749 | 220 DO 230 JT=1,2 | |
5750 | IF(MINT(16+JT).EQ.0) THEN | |
5751 | PDIF(2+JT)=PDIF(JT) | |
5752 | ELSE | |
5753 | PMMIN=PDIF(JT) | |
5754 | PMMAX=MAX(VINT(2+JT),VINT(1)-PDIF(3-JT)) | |
5755 | PDIF(2+JT)=PMMIN*(PMMAX/PMMIN)**PYR(0) | |
5756 | ENDIF | |
5757 | 230 CONTINUE | |
5758 | SQM3=PDIF(3)**2 | |
5759 | SQM4=PDIF(4)**2 | |
5760 | ||
5761 | C..Additional mass factors, including resonance enhancement. | |
5762 | IF(PDIF(3)+PDIF(4).GE.VINT(1)) GOTO 220 | |
5763 | IF(ISUB.EQ.92) THEN | |
5764 | FSD=(1D0-SQM3/SH)*(1D0+CRES*SMRES1/(SMRES1+SQM3)) | |
5765 | IF(FSD.LT.PYR(0)*(1D0+CRES)) GOTO 220 | |
5766 | ELSEIF(ISUB.EQ.93) THEN | |
5767 | FSD=(1D0-SQM4/SH)*(1D0+CRES*SMRES2/(SMRES2+SQM4)) | |
5768 | IF(FSD.LT.PYR(0)*(1D0+CRES)) GOTO 220 | |
5769 | ELSEIF(ISUB.EQ.94) THEN | |
5770 | FDD=(1D0-(PDIF(3)+PDIF(4))**2/SH)*(SH*SMP/ | |
5771 | & (SH*SMP+SQM3*SQM4))*(1D0+CRES*SMRES1/(SMRES1+SQM3))* | |
5772 | & (1D0+CRES*SMRES2/(SMRES2+SQM4)) | |
5773 | IF(FDD.LT.PYR(0)*(1D0+CRES)**2) GOTO 220 | |
5774 | ENDIF | |
5775 | ||
5776 | C...Select t according to exp(Bmn*t) and correct to right slope. | |
5777 | TH=THU+LOG(1D0+THRND*PYR(0))/BMN | |
5778 | IF(ISUB.GE.92) THEN | |
5779 | IF(ISUB.EQ.92) THEN | |
5780 | BADD=2D0*ALP*LOG(SH/SQM3) | |
5781 | IF(BHAD(IHB).LT.1D0) BADD=MAX(0D0,BADD+2D0*BHAD(IHB)-2D0) | |
5782 | ELSEIF(ISUB.EQ.93) THEN | |
5783 | BADD=2D0*ALP*LOG(SH/SQM4) | |
5784 | IF(BHAD(IHA).LT.1D0) BADD=MAX(0D0,BADD+2D0*BHAD(IHA)-2D0) | |
5785 | ELSEIF(ISUB.EQ.94) THEN | |
5786 | BADD=2D0*ALP*(LOG(EXP(4D0)+SH/(ALP*SQM3*SQM4))-4D0) | |
5787 | ENDIF | |
5788 | IF(EXP(MAX(-50D0,BADD*(TH-THU))).LT.PYR(0)) GOTO 220 | |
5789 | ENDIF | |
5790 | ||
5791 | C...Check whether m^2 and t choices are consistent. | |
5792 | SQLA34=(SH-SQM3-SQM4)**2-4D0*SQM3*SQM4 | |
5793 | THA=SH-(SQM1+SQM2+SQM3+SQM4)+(SQM1-SQM2)*(SQM3-SQM4)/SH | |
5794 | THB=SQRT(MAX(0D0,SQLA12))*SQRT(MAX(0D0,SQLA34))/SH | |
5795 | IF(THB.LE.1D-8) GOTO 220 | |
5796 | THC=(SQM3-SQM1)*(SQM4-SQM2)+(SQM1+SQM4-SQM2-SQM3)* | |
5797 | & (SQM1*SQM4-SQM2*SQM3)/SH | |
5798 | THLM=-0.5D0*(THA+THB) | |
5799 | THUM=THC/THLM | |
5800 | IF(TH.LT.THLM.OR.TH.GT.THUM) GOTO 220 | |
5801 | ||
5802 | C...Information to output. | |
5803 | VINT(21)=1D0 | |
5804 | VINT(22)=0D0 | |
5805 | VINT(23)=MIN(1D0,MAX(-1D0,(THA+2D0*TH)/THB)) | |
5806 | VINT(45)=TH | |
5807 | VINT(59)=2D0*SQRT(MAX(0D0,-(THC+THA*TH+TH**2)))/THB | |
5808 | VINT(63)=PDIF(3)**2 | |
5809 | VINT(64)=PDIF(4)**2 | |
5810 | ||
5811 | C...Note: in the following, by In is meant the integral over the | |
5812 | C...quantity multiplying coefficient cn. | |
5813 | C...Choose tau according to h1(tau)/tau, where | |
5814 | C...h1(tau) = c1 + I1/I2*c2*1/tau + I1/I3*c3*1/(tau+tau_R) + | |
5815 | C...I1/I4*c4*tau/((s*tau-m^2)^2+(m*Gamma)^2) + | |
5816 | C...I1/I5*c5*1/(tau+tau_R') + | |
5817 | C...I1/I6*c6*tau/((s*tau-m'^2)^2+(m'*Gamma')^2) + | |
5818 | C...I1/I7*c7*tau/(1.-tau), and | |
5819 | C...c1 + c2 + c3 + c4 + c5 + c6 + c7 = 1. | |
5820 | ELSEIF(ISTSB.GE.1.AND.ISTSB.LE.5) THEN | |
5821 | CALL PYKLIM(1) | |
5822 | IF(MINT(51).NE.0) THEN | |
5823 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5824 | IF(MFAIL.EQ.1) THEN | |
5825 | MSTI(61)=1 | |
5826 | RETURN | |
5827 | ENDIF | |
5828 | GOTO 100 | |
5829 | ENDIF | |
5830 | RTAU=PYR(0) | |
5831 | MTAU=1 | |
5832 | IF(RTAU.GT.COEF(ISUB,1)) MTAU=2 | |
5833 | IF(RTAU.GT.COEF(ISUB,1)+COEF(ISUB,2)) MTAU=3 | |
5834 | IF(RTAU.GT.COEF(ISUB,1)+COEF(ISUB,2)+COEF(ISUB,3)) MTAU=4 | |
5835 | IF(RTAU.GT.COEF(ISUB,1)+COEF(ISUB,2)+COEF(ISUB,3)+COEF(ISUB,4)) | |
5836 | & MTAU=5 | |
5837 | IF(RTAU.GT.COEF(ISUB,1)+COEF(ISUB,2)+COEF(ISUB,3)+COEF(ISUB,4)+ | |
5838 | & COEF(ISUB,5)) MTAU=6 | |
5839 | IF(RTAU.GT.COEF(ISUB,1)+COEF(ISUB,2)+COEF(ISUB,3)+COEF(ISUB,4)+ | |
5840 | & COEF(ISUB,5)+COEF(ISUB,6)) MTAU=7 | |
5841 | CALL PYKMAP(1,MTAU,PYR(0)) | |
5842 | ||
5843 | C...2 -> 3, 4 processes: | |
5844 | C...Choose tau' according to h4(tau,tau')/tau', where | |
5845 | C...h4(tau,tau') = c1 + I1/I2*c2*(1 - tau/tau')^3/tau' + | |
5846 | C...I1/I3*c3*1/(1 - tau'), and c1 + c2 + c3 = 1. | |
5847 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) THEN | |
5848 | CALL PYKLIM(4) | |
5849 | IF(MINT(51).NE.0) THEN | |
5850 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5851 | IF(MFAIL.EQ.1) THEN | |
5852 | MSTI(61)=1 | |
5853 | RETURN | |
5854 | ENDIF | |
5855 | GOTO 100 | |
5856 | ENDIF | |
5857 | RTAUP=PYR(0) | |
5858 | MTAUP=1 | |
5859 | IF(RTAUP.GT.COEF(ISUB,18)) MTAUP=2 | |
5860 | IF(RTAUP.GT.COEF(ISUB,18)+COEF(ISUB,19)) MTAUP=3 | |
5861 | CALL PYKMAP(4,MTAUP,PYR(0)) | |
5862 | ENDIF | |
5863 | ||
5864 | C...Choose y* according to h2(y*), where | |
5865 | C...h2(y*) = I0/I1*c1*(y*-y*min) + I0/I2*c2*(y*max-y*) + | |
5866 | C...I0/I3*c3*1/cosh(y*) + I0/I4*c4*1/(1-exp(y*-y*max)) + | |
5867 | C...I0/I5*c5*1/(1-exp(-y*-y*min)), I0 = y*max-y*min, | |
5868 | C...and c1 + c2 + c3 + c4 + c5 = 1. | |
5869 | CALL PYKLIM(2) | |
5870 | IF(MINT(51).NE.0) THEN | |
5871 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5872 | IF(MFAIL.EQ.1) THEN | |
5873 | MSTI(61)=1 | |
5874 | RETURN | |
5875 | ENDIF | |
5876 | GOTO 100 | |
5877 | ENDIF | |
5878 | RYST=PYR(0) | |
5879 | MYST=1 | |
5880 | IF(RYST.GT.COEF(ISUB,8)) MYST=2 | |
5881 | IF(RYST.GT.COEF(ISUB,8)+COEF(ISUB,9)) MYST=3 | |
5882 | IF(RYST.GT.COEF(ISUB,8)+COEF(ISUB,9)+COEF(ISUB,10)) MYST=4 | |
5883 | IF(RYST.GT.COEF(ISUB,8)+COEF(ISUB,9)+COEF(ISUB,10)+ | |
5884 | & COEF(ISUB,11)) MYST=5 | |
5885 | CALL PYKMAP(2,MYST,PYR(0)) | |
5886 | ||
5887 | C...2 -> 2 processes: | |
5888 | C...Choose cos(theta-hat) (cth) according to h3(cth), where | |
5889 | C...h3(cth) = c0 + I0/I1*c1*1/(A - cth) + I0/I2*c2*1/(A + cth) + | |
5890 | C...I0/I3*c3*1/(A - cth)^2 + I0/I4*c4*1/(A + cth)^2, | |
5891 | C...A = 1 + 2*(m3*m4/sh)^2 (= 1 for massless products), | |
5892 | C...and c0 + c1 + c2 + c3 + c4 = 1. | |
5893 | CALL PYKLIM(3) | |
5894 | IF(MINT(51).NE.0) THEN | |
5895 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5896 | IF(MFAIL.EQ.1) THEN | |
5897 | MSTI(61)=1 | |
5898 | RETURN | |
5899 | ENDIF | |
5900 | GOTO 100 | |
5901 | ENDIF | |
5902 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) THEN | |
5903 | RCTH=PYR(0) | |
5904 | MCTH=1 | |
5905 | IF(RCTH.GT.COEF(ISUB,13)) MCTH=2 | |
5906 | IF(RCTH.GT.COEF(ISUB,13)+COEF(ISUB,14)) MCTH=3 | |
5907 | IF(RCTH.GT.COEF(ISUB,13)+COEF(ISUB,14)+COEF(ISUB,15)) MCTH=4 | |
5908 | IF(RCTH.GT.COEF(ISUB,13)+COEF(ISUB,14)+COEF(ISUB,15)+ | |
5909 | & COEF(ISUB,16)) MCTH=5 | |
5910 | CALL PYKMAP(3,MCTH,PYR(0)) | |
5911 | ENDIF | |
5912 | ||
5913 | C...2 -> 3 : select pT1, phi1, pT2, phi2, y3 for 3 outgoing. | |
5914 | IF(ISTSB.EQ.5) THEN | |
5915 | CALL PYKMAP(5,0,0D0) | |
5916 | IF(MINT(51).NE.0) THEN | |
5917 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5918 | IF(MFAIL.EQ.1) THEN | |
5919 | MSTI(61)=1 | |
5920 | RETURN | |
5921 | ENDIF | |
5922 | GOTO 100 | |
5923 | ENDIF | |
5924 | ENDIF | |
5925 | ||
5926 | C...Low-pT or multiple interactions (first semihard interaction). | |
5927 | ELSEIF(ISTSB.EQ.9) THEN | |
5928 | CALL PYMULT(3) | |
5929 | ISUB=MINT(1) | |
5930 | ||
5931 | C...Generate user-defined process: kinematics plus weight. | |
5932 | ELSEIF(ISTSB.EQ.11) THEN | |
5933 | MSTI(51)=0 | |
5934 | CALL PYUPEV(ISUB,SIGS) | |
5935 | IF(NUP.LE.0) THEN | |
5936 | MINT(51)=2 | |
5937 | MSTI(51)=1 | |
5938 | IF(MINT(82).EQ.1) THEN | |
5939 | NGEN(0,1)=NGEN(0,1)-1 | |
5940 | NGEN(0,2)=NGEN(0,2)-1 | |
5941 | NGEN(ISUB,1)=NGEN(ISUB,1)-1 | |
5942 | ENDIF | |
5943 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
5944 | RETURN | |
5945 | ENDIF | |
5946 | ||
5947 | C...Construct 'trivial' kinematical variables needed. | |
5948 | KFL1=KUP(1,2) | |
5949 | KFL2=KUP(2,2) | |
5950 | VINT(41)=2D0*PUP(1,4)/VINT(1) | |
5951 | VINT(42)=2D0*PUP(2,4)/VINT(1) | |
5952 | VINT(21)=VINT(41)*VINT(42) | |
5953 | VINT(22)=0.5D0*LOG(VINT(41)/VINT(42)) | |
5954 | VINT(44)=VINT(21)*VINT(2) | |
5955 | VINT(43)=SQRT(MAX(0D0,VINT(44))) | |
5956 | VINT(56)=Q2UP(0) | |
5957 | VINT(55)=SQRT(MAX(0D0,VINT(56))) | |
5958 | ||
5959 | C...Construct other kinematical variables needed (approximately). | |
5960 | VINT(23)=0D0 | |
5961 | VINT(26)=VINT(21) | |
5962 | VINT(45)=-0.5D0*VINT(44) | |
5963 | VINT(46)=-0.5D0*VINT(44) | |
5964 | VINT(49)=VINT(43) | |
5965 | VINT(50)=VINT(44) | |
5966 | VINT(51)=VINT(55) | |
5967 | VINT(52)=VINT(56) | |
5968 | VINT(53)=VINT(55) | |
5969 | VINT(54)=VINT(56) | |
5970 | VINT(25)=0D0 | |
5971 | VINT(48)=0D0 | |
5972 | DO 240 IUP=3,NUP | |
5973 | IF(KUP(IUP,1).EQ.1) VINT(25)=VINT(25)+2D0*(PUP(IUP,5)**2+ | |
5974 | & PUP(IUP,1)**2+PUP(IUP,2)**2)/VINT(1) | |
5975 | IF(KUP(IUP,1).EQ.1) VINT(48)=VINT(48)+0.5D0*(PUP(IUP,1)**2+ | |
5976 | & PUP(IUP,2)**2) | |
5977 | 240 CONTINUE | |
5978 | VINT(47)=SQRT(VINT(48)) | |
5979 | ||
5980 | C...Calculate parton distribution weights. | |
5981 | IF(MINT(47).GE.2) THEN | |
5982 | DO 260 I=3-MIN(2,MINT(45)),MIN(2,MINT(46)) | |
5983 | MINT(105)=MINT(102+I) | |
5984 | MINT(109)=MINT(106+I) | |
5985 | IF(MSTP(57).LE.1) THEN | |
5986 | CALL PYPDFU(MINT(10+I),VINT(40+I),Q2UP(0),XPQ) | |
5987 | ELSE | |
5988 | CALL PYPDFL(MINT(10+I),VINT(40+I),Q2UP(0),XPQ) | |
5989 | ENDIF | |
5990 | DO 250 KFL=-25,25 | |
5991 | XSFX(I,KFL)=XPQ(KFL) | |
5992 | 250 CONTINUE | |
5993 | 260 CONTINUE | |
5994 | ENDIF | |
5995 | ENDIF | |
5996 | ||
5997 | C...Choose azimuthal angle. | |
5998 | VINT(24)=PARU(2)*PYR(0) | |
5999 | ||
6000 | C...Check against user cuts on kinematics at parton level. | |
6001 | MINT(51)=0 | |
6002 | IF((ISUB.LE.90.OR.ISUB.GT.100).AND.ISTSB.LE.10) CALL PYKLIM(0) | |
6003 | IF(MINT(51).NE.0) THEN | |
6004 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6005 | IF(MFAIL.EQ.1) THEN | |
6006 | MSTI(61)=1 | |
6007 | RETURN | |
6008 | ENDIF | |
6009 | GOTO 100 | |
6010 | ENDIF | |
6011 | IF(MINT(82).EQ.1.AND.MSTP(141).GE.1.AND.ISTSB.LE.10) THEN | |
6012 | MCUT=0 | |
6013 | IF(MSUB(91)+MSUB(92)+MSUB(93)+MSUB(94)+MSUB(95).EQ.0) | |
6014 | & CALL PYKCUT(MCUT) | |
6015 | IF(MCUT.NE.0) THEN | |
6016 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6017 | IF(MFAIL.EQ.1) THEN | |
6018 | MSTI(61)=1 | |
6019 | RETURN | |
6020 | ENDIF | |
6021 | GOTO 100 | |
6022 | ENDIF | |
6023 | ENDIF | |
6024 | ||
6025 | C...Calculate differential cross-section for different subprocesses. | |
6026 | IF(ISTSB.LE.10) CALL PYSIGH(NCHN,SIGS) | |
6027 | SIGSOR=SIGS | |
6028 | SIGLPT=SIGT(0,0,5) | |
6029 | ||
6030 | C...Multiply cross-section by user-defined weights. | |
6031 | IF(MSTP(173).EQ.1) THEN | |
6032 | SIGS=PARP(173)*SIGS | |
6033 | DO 270 ICHN=1,NCHN | |
6034 | SIGH(ICHN)=PARP(173)*SIGH(ICHN) | |
6035 | 270 CONTINUE | |
6036 | SIGLPT=PARP(173)*SIGLPT | |
6037 | ENDIF | |
6038 | WTXS=1D0 | |
6039 | SIGSWT=SIGS | |
6040 | VINT(99)=1D0 | |
6041 | VINT(100)=1D0 | |
6042 | IF(MINT(82).EQ.1.AND.MSTP(142).GE.1) THEN | |
6043 | IF(ISUB.NE.96.AND.MSUB(91)+MSUB(92)+MSUB(93)+MSUB(94)+ | |
6044 | & MSUB(95).EQ.0) CALL PYEVWT(WTXS) | |
6045 | SIGSWT=WTXS*SIGS | |
6046 | VINT(99)=WTXS | |
6047 | IF(MSTP(142).EQ.1) VINT(100)=1D0/WTXS | |
6048 | ENDIF | |
6049 | ||
6050 | C...Calculations for Monte Carlo estimate of all cross-sections. | |
6051 | IF(MINT(82).EQ.1.AND.ISUB.LE.90.OR.ISUB.GE.96) THEN | |
6052 | IF(MSTP(142).LE.1) THEN | |
6053 | XSEC(ISUB,2)=XSEC(ISUB,2)+SIGS | |
6054 | ELSE | |
6055 | XSEC(ISUB,2)=XSEC(ISUB,2)+SIGSWT | |
6056 | ENDIF | |
6057 | ELSEIF(MINT(82).EQ.1) THEN | |
6058 | XSEC(ISUB,2)=XSEC(ISUB,2)+SIGS | |
6059 | ENDIF | |
6060 | IF((ISUB.EQ.95.OR.ISUB.EQ.96).AND.LOOP.EQ.1.AND.MINT(82).EQ.1) | |
6061 | &XSEC(97,2)=XSEC(97,2)+SIGLPT | |
6062 | ||
6063 | C...Multiple interactions: store results of cross-section calculation. | |
6064 | IF(MINT(50).EQ.1.AND.MSTP(82).GE.3) THEN | |
6065 | VINT(153)=SIGSOR | |
6066 | CALL PYMULT(4) | |
6067 | ENDIF | |
6068 | ||
6069 | C...Check that weight not negative. | |
6070 | VIOL=SIGSWT/XSEC(ISUB,1) | |
6071 | IF(ISUB.EQ.96.AND.MSTP(173).EQ.1) VIOL=VIOL/PARP(174) | |
6072 | IF(MSTP(123).LE.0) THEN | |
6073 | IF(VIOL.LT.-1D-3) THEN | |
6074 | WRITE(MSTU(11),5000) VIOL,NGEN(0,3)+1 | |
6075 | IF(MSTP(122).GE.1) WRITE(MSTU(11),5100) ISUB,VINT(21), | |
6076 | & VINT(22),VINT(23),VINT(26) | |
6077 | STOP | |
6078 | ENDIF | |
6079 | ELSE | |
6080 | IF(VIOL.LT.MIN(-1D-3,VINT(109))) THEN | |
6081 | VINT(109)=VIOL | |
6082 | WRITE(MSTU(11),5200) VIOL,NGEN(0,3)+1 | |
6083 | IF(MSTP(122).GE.1) WRITE(MSTU(11),5100) ISUB,VINT(21), | |
6084 | & VINT(22),VINT(23),VINT(26) | |
6085 | ENDIF | |
6086 | ENDIF | |
6087 | ||
6088 | C...Weighting using estimate of maximum of differential cross-section. | |
6089 | IF(MFAIL.EQ.0) THEN | |
6090 | IF(VIOL.LT.PYR(0)) THEN | |
6091 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6092 | GOTO 100 | |
6093 | ENDIF | |
6094 | ELSEIF(ISUB.NE.95.AND.ISUB.NE.96) THEN | |
6095 | IF(VIOL.LT.PYR(0)) THEN | |
6096 | MSTI(61)=1 | |
6097 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6098 | RETURN | |
6099 | ENDIF | |
6100 | ELSE | |
6101 | RATND=SIGLPT/XSEC(95,1) | |
6102 | IF(LOOP.EQ.1.AND.RATND.LT.PYR(0)) THEN | |
6103 | MSTI(61)=1 | |
6104 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6105 | RETURN | |
6106 | ENDIF | |
6107 | VIOL=VIOL/RATND | |
6108 | IF(VIOL.LT.PYR(0)) THEN | |
6109 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6110 | GOTO 100 | |
6111 | ENDIF | |
6112 | ENDIF | |
6113 | ||
6114 | C...Check for possible violation of estimated maximum of differential | |
6115 | C...cross-section used in weighting. | |
6116 | IF(MSTP(123).LE.0) THEN | |
6117 | IF(VIOL.GT.1D0) THEN | |
6118 | WRITE(MSTU(11),5300) VIOL,NGEN(0,3)+1 | |
6119 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5100) ISUB,VINT(21), | |
6120 | & VINT(22),VINT(23),VINT(26) | |
6121 | STOP | |
6122 | ENDIF | |
6123 | ELSEIF(MSTP(123).EQ.1) THEN | |
6124 | IF(VIOL.GT.VINT(108)) THEN | |
6125 | VINT(108)=VIOL | |
6126 | IF(VIOL.GT.1D0) THEN | |
6127 | MINT(10)=1 | |
6128 | WRITE(MSTU(11),5400) VIOL,NGEN(0,3)+1 | |
6129 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5100) ISUB,VINT(21), | |
6130 | & VINT(22),VINT(23),VINT(26) | |
6131 | ENDIF | |
6132 | ENDIF | |
6133 | ELSEIF(VIOL.GT.VINT(108)) THEN | |
6134 | VINT(108)=VIOL | |
6135 | IF(VIOL.GT.1D0) THEN | |
6136 | MINT(10)=1 | |
6137 | XDIF=XSEC(ISUB,1)*(VIOL-1D0) | |
6138 | XSEC(ISUB,1)=XSEC(ISUB,1)+XDIF | |
6139 | IF(MSUB(ISUB).EQ.1.AND.(ISUB.LE.90.OR.ISUB.GT.96)) | |
6140 | & XSEC(0,1)=XSEC(0,1)+XDIF | |
6141 | WRITE(MSTU(11),5400) VIOL,NGEN(0,3)+1 | |
6142 | IF(MSTP(122).GE.2) WRITE(MSTU(11),5100) ISUB,VINT(21), | |
6143 | & VINT(22),VINT(23),VINT(26) | |
6144 | IF(ISUB.LE.9) THEN | |
6145 | WRITE(MSTU(11),5500) ISUB,XSEC(ISUB,1) | |
6146 | ELSEIF(ISUB.LE.99) THEN | |
6147 | WRITE(MSTU(11),5600) ISUB,XSEC(ISUB,1) | |
6148 | ELSE | |
6149 | WRITE(MSTU(11),5700) ISUB,XSEC(ISUB,1) | |
6150 | ENDIF | |
6151 | VINT(108)=1D0 | |
6152 | ENDIF | |
6153 | ENDIF | |
6154 | ||
6155 | C...Multiple interactions: choose impact parameter. | |
6156 | VINT(148)=1D0 | |
6157 | IF(MINT(50).EQ.1.AND.(ISUB.LE.90.OR.ISUB.GE.96).AND. | |
6158 | &MSTP(82).GE.3) THEN | |
6159 | CALL PYMULT(5) | |
6160 | IF(VINT(150).LT.PYR(0)) THEN | |
6161 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6162 | IF(MFAIL.EQ.1) THEN | |
6163 | MSTI(61)=1 | |
6164 | RETURN | |
6165 | ENDIF | |
6166 | GOTO 100 | |
6167 | ENDIF | |
6168 | ENDIF | |
6169 | IF(MINT(82).EQ.1) NGEN(0,2)=NGEN(0,2)+1 | |
6170 | IF(MINT(82).EQ.1.AND.MSUB(95).EQ.1) THEN | |
6171 | IF(ISUB.LE.90.OR.ISUB.GE.95) NGEN(95,1)=NGEN(95,1)+1 | |
6172 | IF(ISUB.LE.90.OR.ISUB.GE.96) NGEN(96,2)=NGEN(96,2)+1 | |
6173 | ENDIF | |
6174 | IF(ISUB.LE.90.OR.ISUB.GE.96) MINT(31)=MINT(31)+1 | |
6175 | ||
6176 | C...Choose flavour of reacting partons (and subprocess). | |
6177 | IF(ISTSB.GE.11) GOTO 290 | |
6178 | RSIGS=SIGS*PYR(0) | |
6179 | QT2=VINT(48) | |
6180 | RQQBAR=PARP(87)*(1D0-(QT2/(QT2+(PARP(88)*PARP(82))**2))**2) | |
6181 | IF(ISUB.NE.95.AND.(ISUB.NE.96.OR.MSTP(82).LE.1.OR. | |
6182 | &PYR(0).GT.RQQBAR)) THEN | |
6183 | DO 280 ICHN=1,NCHN | |
6184 | KFL1=ISIG(ICHN,1) | |
6185 | KFL2=ISIG(ICHN,2) | |
6186 | MINT(2)=ISIG(ICHN,3) | |
6187 | RSIGS=RSIGS-SIGH(ICHN) | |
6188 | IF(RSIGS.LE.0D0) GOTO 290 | |
6189 | 280 CONTINUE | |
6190 | ||
6191 | C...Multiple interactions: choose qqbar preferentially at small pT. | |
6192 | ELSEIF(ISUB.EQ.96) THEN | |
6193 | MINT(105)=MINT(103) | |
6194 | MINT(109)=MINT(107) | |
6195 | CALL PYSPLI(MINT(11),21,KFL1,KFLDUM) | |
6196 | MINT(105)=MINT(104) | |
6197 | MINT(109)=MINT(108) | |
6198 | CALL PYSPLI(MINT(12),21,KFL2,KFLDUM) | |
6199 | MINT(1)=11 | |
6200 | MINT(2)=1 | |
6201 | IF(KFL1.EQ.KFL2.AND.PYR(0).LT.0.5D0) MINT(2)=2 | |
6202 | ||
6203 | C...Low-pT: choose string drawing configuration. | |
6204 | ELSE | |
6205 | KFL1=21 | |
6206 | KFL2=21 | |
6207 | RSIGS=6D0*PYR(0) | |
6208 | MINT(2)=1 | |
6209 | IF(RSIGS.GT.1D0) MINT(2)=2 | |
6210 | IF(RSIGS.GT.2D0) MINT(2)=3 | |
6211 | ENDIF | |
6212 | ||
6213 | C...Reassign QCD process. Partons before initial state radiation. | |
6214 | 290 IF(MINT(2).GT.10) THEN | |
6215 | MINT(1)=MINT(2)/10 | |
6216 | MINT(2)=MOD(MINT(2),10) | |
6217 | ENDIF | |
6218 | IF(MINT(82).EQ.1.AND.MSTP(111).GE.0) NGEN(MINT(1),2)= | |
6219 | &NGEN(MINT(1),2)+1 | |
6220 | MINT(15)=KFL1 | |
6221 | MINT(16)=KFL2 | |
6222 | MINT(13)=MINT(15) | |
6223 | MINT(14)=MINT(16) | |
6224 | VINT(141)=VINT(41) | |
6225 | VINT(142)=VINT(42) | |
6226 | VINT(151)=0D0 | |
6227 | VINT(152)=0D0 | |
6228 | ||
6229 | C...Calculate x value of photon for parton inside photon inside e. | |
6230 | DO 320 JT=1,2 | |
6231 | MINT(18+JT)=0 | |
6232 | VINT(154+JT)=0D0 | |
6233 | MSPLI=0 | |
6234 | IF(JT.EQ.1.AND.MINT(43).LE.2) MSPLI=1 | |
6235 | IF(JT.EQ.2.AND.MOD(MINT(43),2).EQ.1) MSPLI=1 | |
6236 | IF(IABS(MINT(14+JT)).LE.8.OR.MINT(14+JT).EQ.21) MSPLI=MSPLI+1 | |
6237 | IF(MSPLI.EQ.2) THEN | |
6238 | KFLH=MINT(14+JT) | |
6239 | XHRD=VINT(140+JT) | |
6240 | Q2HRD=VINT(54) | |
6241 | MINT(105)=MINT(102+JT) | |
6242 | MINT(109)=MINT(106+JT) | |
6243 | IF(MSTP(57).LE.1) THEN | |
6244 | CALL PYPDFU(22,XHRD,Q2HRD,XPQ) | |
6245 | ELSE | |
6246 | CALL PYPDFL(22,XHRD,Q2HRD,XPQ) | |
6247 | ENDIF | |
6248 | WTMX=4D0*XPQ(KFLH) | |
6249 | IF(MSTP(13).EQ.2) THEN | |
6250 | Q2PMS=Q2HRD/PMAS(11,1)**2 | |
6251 | WTMX=WTMX*LOG(MAX(2D0,Q2PMS*(1D0-XHRD)/XHRD**2)) | |
6252 | ENDIF | |
6253 | 300 XE=XHRD**PYR(0) | |
6254 | XG=MIN(0.999999D0,XHRD/XE) | |
6255 | IF(MSTP(57).LE.1) THEN | |
6256 | CALL PYPDFU(22,XG,Q2HRD,XPQ) | |
6257 | ELSE | |
6258 | CALL PYPDFL(22,XG,Q2HRD,XPQ) | |
6259 | ENDIF | |
6260 | WT=(1D0+(1D0-XE)**2)*XPQ(KFLH) | |
6261 | IF(MSTP(13).EQ.2) WT=WT*LOG(MAX(2D0,Q2PMS*(1D0-XE)/XE**2)) | |
6262 | IF(WT.LT.PYR(0)*WTMX) GOTO 300 | |
6263 | MINT(18+JT)=1 | |
6264 | VINT(154+JT)=XE | |
6265 | DO 310 KFLS=-25,25 | |
6266 | XSFX(JT,KFLS)=XPQ(KFLS) | |
6267 | 310 CONTINUE | |
6268 | ENDIF | |
6269 | 320 CONTINUE | |
6270 | ||
6271 | C...Pick scale where photon is resolved. | |
6272 | IF(MINT(107).EQ.3) VINT(283)=PARP(15)**2* | |
6273 | &(VINT(54)/PARP(15)**2)**PYR(0) | |
6274 | IF(MINT(108).EQ.3) VINT(284)=PARP(15)**2* | |
6275 | &(VINT(54)/PARP(15)**2)**PYR(0) | |
6276 | IF(MINT(121).GT.1) CALL PYSAVE(2,IGA) | |
6277 | ||
6278 | C...Format statements for differential cross-section maximum violations. | |
6279 | 5000 FORMAT(/1X,'Error: negative cross-section fraction',1P,D11.3,1X, | |
6280 | &'in event',1X,I7,'D0'/1X,'Execution stopped!') | |
6281 | 5100 FORMAT(1X,'ISUB = ',I3,'; Point of violation:'/1X,'tau =',1P, | |
6282 | &D11.3,', y* =',D11.3,', cthe = ',0P,F11.7,', tau'' =',1P,D11.3) | |
6283 | 5200 FORMAT(/1X,'Warning: negative cross-section fraction',1P,D11.3,1X, | |
6284 | &'in event',1X,I7) | |
6285 | 5300 FORMAT(/1X,'Error: maximum violated by',1P,D11.3,1X, | |
6286 | &'in event',1X,I7,'D0'/1X,'Execution stopped!') | |
6287 | 5400 FORMAT(/1X,'Advisory warning: maximum violated by',1P,D11.3,1X, | |
6288 | &'in event',1X,I7) | |
6289 | 5500 FORMAT(1X,'XSEC(',I1,',1) increased to',1P,D11.3) | |
6290 | 5600 FORMAT(1X,'XSEC(',I2,',1) increased to',1P,D11.3) | |
6291 | 5700 FORMAT(1X,'XSEC(',I3,',1) increased to',1P,D11.3) | |
6292 | ||
6293 | RETURN | |
6294 | END | |
6295 | ||
6296 | C********************************************************************* | |
6297 | ||
6298 | C...PYSCAT | |
6299 | C...Finds outgoing flavours and event type; sets up the kinematics | |
6300 | C...and colour flow of the hard scattering | |
6301 | ||
6302 | SUBROUTINE PYSCAT | |
6303 | ||
6304 | C...Double precision and integer declarations | |
6305 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
6306 | INTEGER PYK,PYCHGE,PYCOMP | |
6307 | C...Parameter statement to help give large particle numbers. | |
6308 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
6309 | C...Commonblocks | |
6310 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
6311 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
6312 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
6313 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
6314 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
6315 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
6316 | COMMON/PYINT1/MINT(400),VINT(400) | |
6317 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
6318 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
6319 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
6320 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
6321 | COMMON/PYUPPR/NUP,KUP(20,7),NFUP,IFUP(10,2),PUP(20,5),Q2UP(0:10) | |
6322 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
6323 | &SFMIX(16,4) | |
6324 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/, | |
6325 | &/PYINT1/,/PYINT2/,/PYINT3/,/PYINT4/,/PYINT5/,/PYUPPR/,/PYSSMT/ | |
6326 | C...Local arrays and saved variables | |
6327 | DIMENSION WDTP(0:200),WDTE(0:200,0:5),PMQ(2),Z(2),CTHE(2), | |
6328 | &PHI(2),KUPPO(20),VINTSV(41:66) | |
6329 | SAVE VINTSV | |
6330 | ||
6331 | C...Read out process | |
6332 | ISUB=MINT(1) | |
6333 | ISUBSV=ISUB | |
6334 | ||
6335 | C...Restore information for low-pT processes | |
6336 | IF(ISUB.EQ.95.AND.MINT(57).GE.1) THEN | |
6337 | DO 100 J=41,66 | |
6338 | 100 VINT(J)=VINTSV(J) | |
6339 | ENDIF | |
6340 | ||
6341 | C...Convert H' or A process into equivalent H one | |
6342 | IHIGG=1 | |
6343 | KFHIGG=25 | |
6344 | IF((ISUB.GE.151.AND.ISUB.LE.160).OR.(ISUB.GE.171.AND. | |
6345 | &ISUB.LE.190)) THEN | |
6346 | IHIGG=2 | |
6347 | IF(MOD(ISUB-1,10).GE.5) IHIGG=3 | |
6348 | KFHIGG=33+IHIGG | |
6349 | IF(ISUB.EQ.151.OR.ISUB.EQ.156) ISUB=3 | |
6350 | IF(ISUB.EQ.152.OR.ISUB.EQ.157) ISUB=102 | |
6351 | IF(ISUB.EQ.153.OR.ISUB.EQ.158) ISUB=103 | |
6352 | IF(ISUB.EQ.171.OR.ISUB.EQ.176) ISUB=24 | |
6353 | IF(ISUB.EQ.172.OR.ISUB.EQ.177) ISUB=26 | |
6354 | IF(ISUB.EQ.173.OR.ISUB.EQ.178) ISUB=123 | |
6355 | IF(ISUB.EQ.174.OR.ISUB.EQ.179) ISUB=124 | |
6356 | IF(ISUB.EQ.181.OR.ISUB.EQ.186) ISUB=121 | |
6357 | IF(ISUB.EQ.182.OR.ISUB.EQ.187) ISUB=122 | |
6358 | ENDIF | |
6359 | ||
6360 | C...Choice of subprocess, number of documentation lines | |
6361 | IDOC=6+ISET(ISUB) | |
6362 | IF(ISUB.EQ.95) IDOC=8 | |
6363 | IF(ISET(ISUB).EQ.5) IDOC=9 | |
6364 | IF(ISET(ISUB).EQ.11) IDOC=4+NUP | |
6365 | MINT(3)=IDOC-6 | |
6366 | IF(IDOC.GE.9.AND.ISET(ISUB).LE.4) IDOC=IDOC+2 | |
6367 | MINT(4)=IDOC | |
6368 | IPU1=MINT(84)+1 | |
6369 | IPU2=MINT(84)+2 | |
6370 | IPU3=MINT(84)+3 | |
6371 | IPU4=MINT(84)+4 | |
6372 | IPU5=MINT(84)+5 | |
6373 | IPU6=MINT(84)+6 | |
6374 | ||
6375 | C...Reset K, P and V vectors. Store incoming particles | |
6376 | DO 120 JT=1,MSTP(126)+20 | |
6377 | I=MINT(83)+JT | |
6378 | DO 110 J=1,5 | |
6379 | K(I,J)=0 | |
6380 | P(I,J)=0D0 | |
6381 | V(I,J)=0D0 | |
6382 | 110 CONTINUE | |
6383 | 120 CONTINUE | |
6384 | DO 140 JT=1,2 | |
6385 | I=MINT(83)+JT | |
6386 | K(I,1)=21 | |
6387 | K(I,2)=MINT(10+JT) | |
6388 | DO 130 J=1,5 | |
6389 | P(I,J)=VINT(285+5*JT+J) | |
6390 | 130 CONTINUE | |
6391 | 140 CONTINUE | |
6392 | MINT(6)=2 | |
6393 | KFRES=0 | |
6394 | ||
6395 | C...Store incoming partons in their CM-frame | |
6396 | SH=VINT(44) | |
6397 | SHR=SQRT(SH) | |
6398 | SHP=VINT(26)*VINT(2) | |
6399 | SHPR=SQRT(SHP) | |
6400 | SHUSER=SHR | |
6401 | IF(ISET(ISUB).GE.3.AND.ISET(ISUB).LE.5) SHUSER=SHPR | |
6402 | DO 150 JT=1,2 | |
6403 | I=MINT(84)+JT | |
6404 | K(I,1)=14 | |
6405 | K(I,2)=MINT(14+JT) | |
6406 | K(I,3)=MINT(83)+2+JT | |
6407 | P(I,3)=0.5D0*SHUSER*(-1D0)**(JT-1) | |
6408 | P(I,4)=0.5D0*SHUSER | |
6409 | 150 CONTINUE | |
6410 | ||
6411 | C...Copy incoming partons to documentation lines | |
6412 | DO 170 JT=1,2 | |
6413 | I1=MINT(83)+4+JT | |
6414 | I2=MINT(84)+JT | |
6415 | K(I1,1)=21 | |
6416 | K(I1,2)=K(I2,2) | |
6417 | K(I1,3)=I1-2 | |
6418 | DO 160 J=1,5 | |
6419 | P(I1,J)=P(I2,J) | |
6420 | 160 CONTINUE | |
6421 | 170 CONTINUE | |
6422 | ||
6423 | C...Choose new quark/lepton flavour for relevant annihilation graphs | |
6424 | IF(ISUB.EQ.12.OR.ISUB.EQ.53.OR.ISUB.EQ.54.OR.ISUB.EQ.58) THEN | |
6425 | IGLGA=21 | |
6426 | IF(ISUB.EQ.58) IGLGA=22 | |
6427 | CALL PYWIDT(IGLGA,SH,WDTP,WDTE) | |
6428 | 180 RKFL=(WDTE(0,1)+WDTE(0,2)+WDTE(0,4))*PYR(0) | |
6429 | DO 190 I=1,MDCY(IGLGA,3) | |
6430 | KFLF=KFDP(I+MDCY(IGLGA,2)-1,1) | |
6431 | RKFL=RKFL-(WDTE(I,1)+WDTE(I,2)+WDTE(I,4)) | |
6432 | IF(RKFL.LE.0D0) GOTO 200 | |
6433 | 190 CONTINUE | |
6434 | 200 CONTINUE | |
6435 | IF(ISUB.EQ.12.AND.MSTP(5).EQ.1.AND.IABS(MINT(15)).LE.2.AND. | |
6436 | & IABS(KFLF).GE.3) THEN | |
6437 | FACQQB=VINT(58)**2*4D0/9D0*(VINT(45)**2+VINT(46)**2)/ | |
6438 | & VINT(44)**2 | |
6439 | FACCIB=VINT(46)**2/PARU(155)**4 | |
6440 | IF(FACQQB/(FACQQB+FACCIB).LT.PYR(0)) GOTO 180 | |
6441 | ELSEIF(ISUB.EQ.54) THEN | |
6442 | IF((KCHG(PYCOMP(KFLF),1)/2D0)**2.LT.PYR(0)) GOTO 180 | |
6443 | ELSEIF(ISUB.EQ.58) THEN | |
6444 | IF((KCHG(PYCOMP(KFLF),1)/3D0)**2.LT.PYR(0)) GOTO 180 | |
6445 | ENDIF | |
6446 | ENDIF | |
6447 | ||
6448 | C...Final state flavours and colour flow: default values | |
6449 | JS=1 | |
6450 | MINT(21)=MINT(15) | |
6451 | MINT(22)=MINT(16) | |
6452 | MINT(23)=0 | |
6453 | MINT(24)=0 | |
6454 | KCC=20 | |
6455 | KCS=ISIGN(1,MINT(15)) | |
6456 | ||
6457 | IF(ISET(ISUB).EQ.11) THEN | |
6458 | C...User-defined processes: find products | |
6459 | IRUP=0 | |
6460 | DO 210 IUP=3,NUP | |
6461 | IF(KUP(IUP,1).NE.1) THEN | |
6462 | ELSEIF(IRUP.LE.5) THEN | |
6463 | IRUP=IRUP+1 | |
6464 | MINT(20+IRUP)=KUP(IUP,2) | |
6465 | ENDIF | |
6466 | 210 CONTINUE | |
6467 | ||
6468 | ELSEIF(ISUB.LE.10) THEN | |
6469 | IF(ISUB.EQ.1) THEN | |
6470 | C...f + fbar -> gamma*/Z0 | |
6471 | KFRES=23 | |
6472 | ||
6473 | ELSEIF(ISUB.EQ.2) THEN | |
6474 | C...f + fbar' -> W+/- | |
6475 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
6476 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
6477 | KFRES=ISIGN(24,KCH1+KCH2) | |
6478 | ||
6479 | ELSEIF(ISUB.EQ.3) THEN | |
6480 | C...f + fbar -> h0 (or H0, or A0) | |
6481 | KFRES=KFHIGG | |
6482 | ||
6483 | ELSEIF(ISUB.EQ.4) THEN | |
6484 | C...gamma + W+/- -> W+/- | |
6485 | ||
6486 | ELSEIF(ISUB.EQ.5) THEN | |
6487 | C...Z0 + Z0 -> h0 | |
6488 | XH=SH/SHP | |
6489 | MINT(21)=MINT(15) | |
6490 | MINT(22)=MINT(16) | |
6491 | PMQ(1)=PYMASS(MINT(21)) | |
6492 | PMQ(2)=PYMASS(MINT(22)) | |
6493 | 220 JT=INT(1.5D0+PYR(0)) | |
6494 | ZMIN=2D0*PMQ(JT)/SHPR | |
6495 | ZMAX=1D0-PMQ(3-JT)/SHPR-(SH-PMQ(JT)**2)/ | |
6496 | & (SHPR*(SHPR-PMQ(3-JT))) | |
6497 | ZMAX=MIN(1D0-XH,ZMAX) | |
6498 | Z(JT)=ZMIN+(ZMAX-ZMIN)*PYR(0) | |
6499 | IF(-1D0+(1D0+XH)/(1D0-Z(JT))-XH/(1D0-Z(JT))**2.LT. | |
6500 | & (1D0-XH)**2/(4D0*XH)*PYR(0)) GOTO 220 | |
6501 | SQC1=1D0-4D0*PMQ(JT)**2/(Z(JT)**2*SHP) | |
6502 | IF(SQC1.LT.1.D-8) GOTO 220 | |
6503 | C1=SQRT(SQC1) | |
6504 | C2=1D0+2D0*(PMAS(23,1)**2-PMQ(JT)**2)/(Z(JT)*SHP) | |
6505 | CTHE(JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
6506 | CTHE(JT)=MIN(1D0,MAX(-1D0,CTHE(JT))) | |
6507 | Z(3-JT)=1D0-XH/(1D0-Z(JT)) | |
6508 | SQC1=1D0-4D0*PMQ(3-JT)**2/(Z(3-JT)**2*SHP) | |
6509 | IF(SQC1.LT.1.D-8) GOTO 220 | |
6510 | C1=SQRT(SQC1) | |
6511 | C2=1D0+2D0*(PMAS(23,1)**2-PMQ(3-JT)**2)/(Z(3-JT)*SHP) | |
6512 | CTHE(3-JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
6513 | CTHE(3-JT)=MIN(1D0,MAX(-1D0,CTHE(3-JT))) | |
6514 | PHIR=PARU(2)*PYR(0) | |
6515 | CPHI=COS(PHIR) | |
6516 | ANG=CTHE(1)*CTHE(2)-SQRT(1D0-CTHE(1)**2)* | |
6517 | & SQRT(1D0-CTHE(2)**2)*CPHI | |
6518 | Z1=2D0-Z(JT) | |
6519 | Z2=ANG*SQRT(Z(JT)**2-4D0*PMQ(JT)**2/SHP) | |
6520 | Z3=1D0-Z(JT)-XH+(PMQ(1)**2+PMQ(2)**2)/SHP | |
6521 | Z(3-JT)=2D0/(Z1**2-Z2**2)*(Z1*Z3+Z2*SQRT(Z3**2-(Z1**2-Z2**2)* | |
6522 | & PMQ(3-JT)**2/SHP)) | |
6523 | ZMIN=2D0*PMQ(3-JT)/SHPR | |
6524 | ZMAX=1D0-PMQ(JT)/SHPR-(SH-PMQ(3-JT)**2)/(SHPR*(SHPR-PMQ(JT))) | |
6525 | ZMAX=MIN(1D0-XH,ZMAX) | |
6526 | IF(Z(3-JT).LT.ZMIN.OR.Z(3-JT).GT.ZMAX) GOTO 220 | |
6527 | KCC=22 | |
6528 | KFRES=25 | |
6529 | ||
6530 | ELSEIF(ISUB.EQ.6) THEN | |
6531 | C...Z0 + W+/- -> W+/- | |
6532 | ||
6533 | ELSEIF(ISUB.EQ.7) THEN | |
6534 | C...W+ + W- -> Z0 | |
6535 | ||
6536 | ELSEIF(ISUB.EQ.8) THEN | |
6537 | C...W+ + W- -> h0 | |
6538 | XH=SH/SHP | |
6539 | 230 DO 260 JT=1,2 | |
6540 | I=MINT(14+JT) | |
6541 | IA=IABS(I) | |
6542 | IF(IA.LE.10) THEN | |
6543 | RVCKM=VINT(180+I)*PYR(0) | |
6544 | DO 240 J=1,MSTP(1) | |
6545 | IB=2*J-1+MOD(IA,2) | |
6546 | IPM=(5-ISIGN(1,I))/2 | |
6547 | IDC=J+MDCY(IA,2)+2 | |
6548 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 240 | |
6549 | MINT(20+JT)=ISIGN(IB,I) | |
6550 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
6551 | IF(RVCKM.LE.0D0) GOTO 250 | |
6552 | 240 CONTINUE | |
6553 | ELSE | |
6554 | IB=2*((IA+1)/2)-1+MOD(IA,2) | |
6555 | MINT(20+JT)=ISIGN(IB,I) | |
6556 | ENDIF | |
6557 | 250 PMQ(JT)=PYMASS(MINT(20+JT)) | |
6558 | 260 CONTINUE | |
6559 | JT=INT(1.5D0+PYR(0)) | |
6560 | ZMIN=2D0*PMQ(JT)/SHPR | |
6561 | ZMAX=1D0-PMQ(3-JT)/SHPR-(SH-PMQ(JT)**2)/ | |
6562 | & (SHPR*(SHPR-PMQ(3-JT))) | |
6563 | ZMAX=MIN(1D0-XH,ZMAX) | |
6564 | IF(ZMIN.GE.ZMAX) GOTO 230 | |
6565 | Z(JT)=ZMIN+(ZMAX-ZMIN)*PYR(0) | |
6566 | IF(-1D0+(1D0+XH)/(1D0-Z(JT))-XH/(1D0-Z(JT))**2.LT. | |
6567 | & (1D0-XH)**2/(4D0*XH)*PYR(0)) GOTO 230 | |
6568 | SQC1=1D0-4D0*PMQ(JT)**2/(Z(JT)**2*SHP) | |
6569 | IF(SQC1.LT.1.D-8) GOTO 230 | |
6570 | C1=SQRT(SQC1) | |
6571 | C2=1D0+2D0*(PMAS(24,1)**2-PMQ(JT)**2)/(Z(JT)*SHP) | |
6572 | CTHE(JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
6573 | CTHE(JT)=MIN(1D0,MAX(-1D0,CTHE(JT))) | |
6574 | Z(3-JT)=1D0-XH/(1D0-Z(JT)) | |
6575 | SQC1=1D0-4D0*PMQ(3-JT)**2/(Z(3-JT)**2*SHP) | |
6576 | IF(SQC1.LT.1.D-8) GOTO 230 | |
6577 | C1=SQRT(SQC1) | |
6578 | C2=1D0+2D0*(PMAS(24,1)**2-PMQ(3-JT)**2)/(Z(3-JT)*SHP) | |
6579 | CTHE(3-JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
6580 | CTHE(3-JT)=MIN(1D0,MAX(-1D0,CTHE(3-JT))) | |
6581 | PHIR=PARU(2)*PYR(0) | |
6582 | CPHI=COS(PHIR) | |
6583 | ANG=CTHE(1)*CTHE(2)-SQRT(1D0-CTHE(1)**2)* | |
6584 | & SQRT(1D0-CTHE(2)**2)*CPHI | |
6585 | Z1=2D0-Z(JT) | |
6586 | Z2=ANG*SQRT(Z(JT)**2-4D0*PMQ(JT)**2/SHP) | |
6587 | Z3=1D0-Z(JT)-XH+(PMQ(1)**2+PMQ(2)**2)/SHP | |
6588 | Z(3-JT)=2D0/(Z1**2-Z2**2)*(Z1*Z3+Z2*SQRT(Z3**2-(Z1**2-Z2**2)* | |
6589 | & PMQ(3-JT)**2/SHP)) | |
6590 | ZMIN=2D0*PMQ(3-JT)/SHPR | |
6591 | ZMAX=1D0-PMQ(JT)/SHPR-(SH-PMQ(3-JT)**2)/(SHPR*(SHPR-PMQ(JT))) | |
6592 | ZMAX=MIN(1D0-XH,ZMAX) | |
6593 | IF(Z(3-JT).LT.ZMIN.OR.Z(3-JT).GT.ZMAX) GOTO 230 | |
6594 | KCC=22 | |
6595 | KFRES=25 | |
6596 | ||
6597 | ELSEIF(ISUB.EQ.10) THEN | |
6598 | C...f + f' -> f + f' (gamma/Z/W exchange); th = (p(f)-p(f))**2 | |
6599 | IF(MINT(2).EQ.1) THEN | |
6600 | KCC=22 | |
6601 | ELSE | |
6602 | C...W exchange: need to mix flavours according to CKM matrix | |
6603 | DO 280 JT=1,2 | |
6604 | I=MINT(14+JT) | |
6605 | IA=IABS(I) | |
6606 | IF(IA.LE.10) THEN | |
6607 | RVCKM=VINT(180+I)*PYR(0) | |
6608 | DO 270 J=1,MSTP(1) | |
6609 | IB=2*J-1+MOD(IA,2) | |
6610 | IPM=(5-ISIGN(1,I))/2 | |
6611 | IDC=J+MDCY(IA,2)+2 | |
6612 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 270 | |
6613 | MINT(20+JT)=ISIGN(IB,I) | |
6614 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
6615 | IF(RVCKM.LE.0D0) GOTO 280 | |
6616 | 270 CONTINUE | |
6617 | ELSE | |
6618 | IB=2*((IA+1)/2)-1+MOD(IA,2) | |
6619 | MINT(20+JT)=ISIGN(IB,I) | |
6620 | ENDIF | |
6621 | 280 CONTINUE | |
6622 | KCC=22 | |
6623 | ENDIF | |
6624 | ENDIF | |
6625 | ||
6626 | ELSEIF(ISUB.LE.20) THEN | |
6627 | IF(ISUB.EQ.11) THEN | |
6628 | C...f + f' -> f + f' (g exchange); th = (p(f)-p(f))**2 | |
6629 | KCC=MINT(2) | |
6630 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
6631 | ||
6632 | ELSEIF(ISUB.EQ.12) THEN | |
6633 | C...f + fbar -> f' + fbar'; th = (p(f)-p(f'))**2 | |
6634 | MINT(21)=ISIGN(KFLF,MINT(15)) | |
6635 | MINT(22)=-MINT(21) | |
6636 | KCC=4 | |
6637 | ||
6638 | ELSEIF(ISUB.EQ.13) THEN | |
6639 | C...f + fbar -> g + g; th arbitrary | |
6640 | MINT(21)=21 | |
6641 | MINT(22)=21 | |
6642 | KCC=MINT(2)+4 | |
6643 | ||
6644 | ELSEIF(ISUB.EQ.14) THEN | |
6645 | C...f + fbar -> g + gamma; th arbitrary | |
6646 | IF(PYR(0).GT.0.5D0) JS=2 | |
6647 | MINT(20+JS)=21 | |
6648 | MINT(23-JS)=22 | |
6649 | KCC=17+JS | |
6650 | ||
6651 | ELSEIF(ISUB.EQ.15) THEN | |
6652 | C...f + fbar -> g + Z0; th arbitrary | |
6653 | IF(PYR(0).GT.0.5D0) JS=2 | |
6654 | MINT(20+JS)=21 | |
6655 | MINT(23-JS)=23 | |
6656 | KCC=17+JS | |
6657 | ||
6658 | ELSEIF(ISUB.EQ.16) THEN | |
6659 | C...f + fbar' -> g + W+/-; th = (p(f)-p(W-))**2 or (p(fbar')-p(W+))**2 | |
6660 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
6661 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
6662 | IF(MINT(15)*(KCH1+KCH2).LT.0) JS=2 | |
6663 | MINT(20+JS)=21 | |
6664 | MINT(23-JS)=ISIGN(24,KCH1+KCH2) | |
6665 | KCC=17+JS | |
6666 | ||
6667 | ELSEIF(ISUB.EQ.17) THEN | |
6668 | C...f + fbar -> g + h0; th arbitrary | |
6669 | IF(PYR(0).GT.0.5D0) JS=2 | |
6670 | MINT(20+JS)=21 | |
6671 | MINT(23-JS)=25 | |
6672 | KCC=17+JS | |
6673 | ||
6674 | ELSEIF(ISUB.EQ.18) THEN | |
6675 | C...f + fbar -> gamma + gamma; th arbitrary | |
6676 | MINT(21)=22 | |
6677 | MINT(22)=22 | |
6678 | ||
6679 | ELSEIF(ISUB.EQ.19) THEN | |
6680 | C...f + fbar -> gamma + Z0; th arbitrary | |
6681 | IF(PYR(0).GT.0.5D0) JS=2 | |
6682 | MINT(20+JS)=22 | |
6683 | MINT(23-JS)=23 | |
6684 | ||
6685 | ELSEIF(ISUB.EQ.20) THEN | |
6686 | C...f + fbar' -> gamma + W+/-; th = (p(f)-p(W-))**2 or | |
6687 | C...(p(fbar')-p(W+))**2 | |
6688 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
6689 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
6690 | IF(MINT(15)*(KCH1+KCH2).LT.0) JS=2 | |
6691 | MINT(20+JS)=22 | |
6692 | MINT(23-JS)=ISIGN(24,KCH1+KCH2) | |
6693 | ENDIF | |
6694 | ||
6695 | ELSEIF(ISUB.LE.30) THEN | |
6696 | IF(ISUB.EQ.21) THEN | |
6697 | C...f + fbar -> gamma + h0; th arbitrary | |
6698 | IF(PYR(0).GT.0.5D0) JS=2 | |
6699 | MINT(20+JS)=22 | |
6700 | MINT(23-JS)=25 | |
6701 | ||
6702 | ELSEIF(ISUB.EQ.22) THEN | |
6703 | C...f + fbar -> Z0 + Z0; th arbitrary | |
6704 | MINT(21)=23 | |
6705 | MINT(22)=23 | |
6706 | ||
6707 | ELSEIF(ISUB.EQ.23) THEN | |
6708 | C...f + fbar' -> Z0 + W+/-; th = (p(f)-p(W-))**2 or (p(fbar')-p(W+))**2 | |
6709 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
6710 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
6711 | IF(MINT(15)*(KCH1+KCH2).LT.0) JS=2 | |
6712 | MINT(20+JS)=23 | |
6713 | MINT(23-JS)=ISIGN(24,KCH1+KCH2) | |
6714 | ||
6715 | ELSEIF(ISUB.EQ.24) THEN | |
6716 | C...f + fbar -> Z0 + h0 (or H0, or A0); th arbitrary | |
6717 | IF(PYR(0).GT.0.5D0) JS=2 | |
6718 | MINT(20+JS)=23 | |
6719 | MINT(23-JS)=KFHIGG | |
6720 | ||
6721 | ELSEIF(ISUB.EQ.25) THEN | |
6722 | C...f + fbar -> W+ + W-; th = (p(f)-p(W-))**2 | |
6723 | MINT(21)=-ISIGN(24,MINT(15)) | |
6724 | MINT(22)=-MINT(21) | |
6725 | ||
6726 | ELSEIF(ISUB.EQ.26) THEN | |
6727 | C...f + fbar' -> W+/- + h0 (or H0, or A0); | |
6728 | C...th = (p(f)-p(W-))**2 or (p(fbar')-p(W+))**2 | |
6729 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
6730 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
6731 | IF(MINT(15)*(KCH1+KCH2).GT.0) JS=2 | |
6732 | MINT(20+JS)=ISIGN(24,KCH1+KCH2) | |
6733 | MINT(23-JS)=KFHIGG | |
6734 | ||
6735 | ELSEIF(ISUB.EQ.27) THEN | |
6736 | C...f + fbar -> h0 + h0 | |
6737 | ||
6738 | ELSEIF(ISUB.EQ.28) THEN | |
6739 | C...f + g -> f + g; th = (p(f)-p(f))**2 | |
6740 | KCC=MINT(2)+6 | |
6741 | IF(MINT(15).EQ.21) KCC=KCC+2 | |
6742 | IF(MINT(15).NE.21) KCS=ISIGN(1,MINT(15)) | |
6743 | IF(MINT(16).NE.21) KCS=ISIGN(1,MINT(16)) | |
6744 | ||
6745 | ELSEIF(ISUB.EQ.29) THEN | |
6746 | C...f + g -> f + gamma; th = (p(f)-p(f))**2 | |
6747 | IF(MINT(15).EQ.21) JS=2 | |
6748 | MINT(23-JS)=22 | |
6749 | KCC=15+JS | |
6750 | KCS=ISIGN(1,MINT(14+JS)) | |
6751 | ||
6752 | ELSEIF(ISUB.EQ.30) THEN | |
6753 | C...f + g -> f + Z0; th = (p(f)-p(f))**2 | |
6754 | IF(MINT(15).EQ.21) JS=2 | |
6755 | MINT(23-JS)=23 | |
6756 | KCC=15+JS | |
6757 | KCS=ISIGN(1,MINT(14+JS)) | |
6758 | ENDIF | |
6759 | ||
6760 | ELSEIF(ISUB.LE.40) THEN | |
6761 | IF(ISUB.EQ.31) THEN | |
6762 | C...f + g -> f' + W+/-; th = (p(f)-p(f'))**2; choose flavour f' | |
6763 | IF(MINT(15).EQ.21) JS=2 | |
6764 | I=MINT(14+JS) | |
6765 | IA=IABS(I) | |
6766 | MINT(23-JS)=ISIGN(24,KCHG(IA,1)*I) | |
6767 | RVCKM=VINT(180+I)*PYR(0) | |
6768 | DO 290 J=1,MSTP(1) | |
6769 | IB=2*J-1+MOD(IA,2) | |
6770 | IPM=(5-ISIGN(1,I))/2 | |
6771 | IDC=J+MDCY(IA,2)+2 | |
6772 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 290 | |
6773 | MINT(20+JS)=ISIGN(IB,I) | |
6774 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
6775 | IF(RVCKM.LE.0D0) GOTO 300 | |
6776 | 290 CONTINUE | |
6777 | 300 KCC=15+JS | |
6778 | KCS=ISIGN(1,MINT(14+JS)) | |
6779 | ||
6780 | ELSEIF(ISUB.EQ.32) THEN | |
6781 | C...f + g -> f + h0; th = (p(f)-p(f))**2 | |
6782 | IF(MINT(15).EQ.21) JS=2 | |
6783 | MINT(23-JS)=25 | |
6784 | KCC=15+JS | |
6785 | KCS=ISIGN(1,MINT(14+JS)) | |
6786 | ||
6787 | ELSEIF(ISUB.EQ.33) THEN | |
6788 | C...f + gamma -> f + g; th=(p(f)-p(f))**2 | |
6789 | IF(MINT(15).EQ.22) JS=2 | |
6790 | MINT(23-JS)=21 | |
6791 | KCC=24+JS | |
6792 | KCS=ISIGN(1,MINT(14+JS)) | |
6793 | ||
6794 | ELSEIF(ISUB.EQ.34) THEN | |
6795 | C...f + gamma -> f + gamma; th=(p(f)-p(f))**2 | |
6796 | IF(MINT(15).EQ.22) JS=2 | |
6797 | KCC=22 | |
6798 | KCS=ISIGN(1,MINT(14+JS)) | |
6799 | ||
6800 | ELSEIF(ISUB.EQ.35) THEN | |
6801 | C...f + gamma -> f + Z0; th=(p(f)-p(f))**2 | |
6802 | IF(MINT(15).EQ.22) JS=2 | |
6803 | MINT(23-JS)=23 | |
6804 | KCC=22 | |
6805 | ||
6806 | ELSEIF(ISUB.EQ.36) THEN | |
6807 | C...f + gamma -> f' + W+/-; th=(p(f)-p(f'))**2 | |
6808 | IF(MINT(15).EQ.22) JS=2 | |
6809 | I=MINT(14+JS) | |
6810 | IA=IABS(I) | |
6811 | MINT(23-JS)=ISIGN(24,KCHG(IA,1)*I) | |
6812 | IF(IA.LE.10) THEN | |
6813 | RVCKM=VINT(180+I)*PYR(0) | |
6814 | DO 310 J=1,MSTP(1) | |
6815 | IB=2*J-1+MOD(IA,2) | |
6816 | IPM=(5-ISIGN(1,I))/2 | |
6817 | IDC=J+MDCY(IA,2)+2 | |
6818 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 310 | |
6819 | MINT(20+JS)=ISIGN(IB,I) | |
6820 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
6821 | IF(RVCKM.LE.0D0) GOTO 320 | |
6822 | 310 CONTINUE | |
6823 | ELSE | |
6824 | IB=2*((IA+1)/2)-1+MOD(IA,2) | |
6825 | MINT(20+JS)=ISIGN(IB,I) | |
6826 | ENDIF | |
6827 | 320 KCC=22 | |
6828 | ||
6829 | ELSEIF(ISUB.EQ.37) THEN | |
6830 | C...f + gamma -> f + h0 | |
6831 | ||
6832 | ELSEIF(ISUB.EQ.38) THEN | |
6833 | C...f + Z0 -> f + g | |
6834 | ||
6835 | ELSEIF(ISUB.EQ.39) THEN | |
6836 | C...f + Z0 -> f + gamma | |
6837 | ||
6838 | ELSEIF(ISUB.EQ.40) THEN | |
6839 | C...f + Z0 -> f + Z0 | |
6840 | ENDIF | |
6841 | ||
6842 | ELSEIF(ISUB.LE.50) THEN | |
6843 | IF(ISUB.EQ.41) THEN | |
6844 | C...f + Z0 -> f' + W+/- | |
6845 | ||
6846 | ELSEIF(ISUB.EQ.42) THEN | |
6847 | C...f + Z0 -> f + h0 | |
6848 | ||
6849 | ELSEIF(ISUB.EQ.43) THEN | |
6850 | C...f + W+/- -> f' + g | |
6851 | ||
6852 | ELSEIF(ISUB.EQ.44) THEN | |
6853 | C...f + W+/- -> f' + gamma | |
6854 | ||
6855 | ELSEIF(ISUB.EQ.45) THEN | |
6856 | C...f + W+/- -> f' + Z0 | |
6857 | ||
6858 | ELSEIF(ISUB.EQ.46) THEN | |
6859 | C...f + W+/- -> f' + W+/- | |
6860 | ||
6861 | ELSEIF(ISUB.EQ.47) THEN | |
6862 | C...f + W+/- -> f' + h0 | |
6863 | ||
6864 | ELSEIF(ISUB.EQ.48) THEN | |
6865 | C...f + h0 -> f + g | |
6866 | ||
6867 | ELSEIF(ISUB.EQ.49) THEN | |
6868 | C...f + h0 -> f + gamma | |
6869 | ||
6870 | ELSEIF(ISUB.EQ.50) THEN | |
6871 | C...f + h0 -> f + Z0 | |
6872 | ENDIF | |
6873 | ||
6874 | ELSEIF(ISUB.LE.60) THEN | |
6875 | IF(ISUB.EQ.51) THEN | |
6876 | C...f + h0 -> f' + W+/- | |
6877 | ||
6878 | ELSEIF(ISUB.EQ.52) THEN | |
6879 | C...f + h0 -> f + h0 | |
6880 | ||
6881 | ELSEIF(ISUB.EQ.53) THEN | |
6882 | C...g + g -> f + fbar; th arbitrary | |
6883 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
6884 | MINT(21)=ISIGN(KFLF,KCS) | |
6885 | MINT(22)=-MINT(21) | |
6886 | KCC=MINT(2)+10 | |
6887 | ||
6888 | ELSEIF(ISUB.EQ.54) THEN | |
6889 | C...g + gamma -> f + fbar; th arbitrary | |
6890 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
6891 | MINT(21)=ISIGN(KFLF,KCS) | |
6892 | MINT(22)=-MINT(21) | |
6893 | KCC=27 | |
6894 | IF(MINT(16).EQ.21) KCC=28 | |
6895 | ||
6896 | ELSEIF(ISUB.EQ.55) THEN | |
6897 | C...g + Z0 -> f + fbar | |
6898 | ||
6899 | ELSEIF(ISUB.EQ.56) THEN | |
6900 | C...g + W+/- -> f + fbar' | |
6901 | ||
6902 | ELSEIF(ISUB.EQ.57) THEN | |
6903 | C...g + h0 -> f + fbar | |
6904 | ||
6905 | ELSEIF(ISUB.EQ.58) THEN | |
6906 | C...gamma + gamma -> f + fbar; th arbitrary | |
6907 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
6908 | MINT(21)=ISIGN(KFLF,KCS) | |
6909 | MINT(22)=-MINT(21) | |
6910 | KCC=21 | |
6911 | ||
6912 | ELSEIF(ISUB.EQ.59) THEN | |
6913 | C...gamma + Z0 -> f + fbar | |
6914 | ||
6915 | ELSEIF(ISUB.EQ.60) THEN | |
6916 | C...gamma + W+/- -> f + fbar' | |
6917 | ENDIF | |
6918 | ||
6919 | ELSEIF(ISUB.LE.70) THEN | |
6920 | IF(ISUB.EQ.61) THEN | |
6921 | C...gamma + h0 -> f + fbar | |
6922 | ||
6923 | ELSEIF(ISUB.EQ.62) THEN | |
6924 | C...Z0 + Z0 -> f + fbar | |
6925 | ||
6926 | ELSEIF(ISUB.EQ.63) THEN | |
6927 | C...Z0 + W+/- -> f + fbar' | |
6928 | ||
6929 | ELSEIF(ISUB.EQ.64) THEN | |
6930 | C...Z0 + h0 -> f + fbar | |
6931 | ||
6932 | ELSEIF(ISUB.EQ.65) THEN | |
6933 | C...W+ + W- -> f + fbar | |
6934 | ||
6935 | ELSEIF(ISUB.EQ.66) THEN | |
6936 | C...W+/- + h0 -> f + fbar' | |
6937 | ||
6938 | ELSEIF(ISUB.EQ.67) THEN | |
6939 | C...h0 + h0 -> f + fbar | |
6940 | ||
6941 | ELSEIF(ISUB.EQ.68) THEN | |
6942 | C...g + g -> g + g; th arbitrary | |
6943 | KCC=MINT(2)+12 | |
6944 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
6945 | ||
6946 | ELSEIF(ISUB.EQ.69) THEN | |
6947 | C...gamma + gamma -> W+ + W-; th arbitrary | |
6948 | MINT(21)=24 | |
6949 | MINT(22)=-24 | |
6950 | KCC=21 | |
6951 | ||
6952 | ELSEIF(ISUB.EQ.70) THEN | |
6953 | C...gamma + W+/- -> Z0 + W+/-; th=(p(W)-p(W))**2 | |
6954 | IF(MINT(15).EQ.22) MINT(21)=23 | |
6955 | IF(MINT(16).EQ.22) MINT(22)=23 | |
6956 | KCC=21 | |
6957 | ENDIF | |
6958 | ||
6959 | ELSEIF(ISUB.LE.80) THEN | |
6960 | IF(ISUB.EQ.71.OR.ISUB.EQ.72) THEN | |
6961 | C...Z0 + Z0 -> Z0 + Z0; Z0 + Z0 -> W+ + W- | |
6962 | XH=SH/SHP | |
6963 | MINT(21)=MINT(15) | |
6964 | MINT(22)=MINT(16) | |
6965 | PMQ(1)=PYMASS(MINT(21)) | |
6966 | PMQ(2)=PYMASS(MINT(22)) | |
6967 | 330 JT=INT(1.5D0+PYR(0)) | |
6968 | ZMIN=2D0*PMQ(JT)/SHPR | |
6969 | ZMAX=1D0-PMQ(3-JT)/SHPR-(SH-PMQ(JT)**2)/ | |
6970 | & (SHPR*(SHPR-PMQ(3-JT))) | |
6971 | ZMAX=MIN(1D0-XH,ZMAX) | |
6972 | Z(JT)=ZMIN+(ZMAX-ZMIN)*PYR(0) | |
6973 | IF(-1D0+(1D0+XH)/(1D0-Z(JT))-XH/(1D0-Z(JT))**2.LT. | |
6974 | & (1D0-XH)**2/(4D0*XH)*PYR(0)) GOTO 330 | |
6975 | SQC1=1D0-4D0*PMQ(JT)**2/(Z(JT)**2*SHP) | |
6976 | IF(SQC1.LT.1.D-8) GOTO 330 | |
6977 | C1=SQRT(SQC1) | |
6978 | C2=1D0+2D0*(PMAS(23,1)**2-PMQ(JT)**2)/(Z(JT)*SHP) | |
6979 | CTHE(JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
6980 | CTHE(JT)=MIN(1D0,MAX(-1D0,CTHE(JT))) | |
6981 | Z(3-JT)=1D0-XH/(1D0-Z(JT)) | |
6982 | SQC1=1D0-4D0*PMQ(3-JT)**2/(Z(3-JT)**2*SHP) | |
6983 | IF(SQC1.LT.1.D-8) GOTO 330 | |
6984 | C1=SQRT(SQC1) | |
6985 | C2=1D0+2D0*(PMAS(23,1)**2-PMQ(3-JT)**2)/(Z(3-JT)*SHP) | |
6986 | CTHE(3-JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
6987 | CTHE(3-JT)=MIN(1D0,MAX(-1D0,CTHE(3-JT))) | |
6988 | PHIR=PARU(2)*PYR(0) | |
6989 | CPHI=COS(PHIR) | |
6990 | ANG=CTHE(1)*CTHE(2)-SQRT(1D0-CTHE(1)**2)* | |
6991 | & SQRT(1D0-CTHE(2)**2)*CPHI | |
6992 | Z1=2D0-Z(JT) | |
6993 | Z2=ANG*SQRT(Z(JT)**2-4D0*PMQ(JT)**2/SHP) | |
6994 | Z3=1D0-Z(JT)-XH+(PMQ(1)**2+PMQ(2)**2)/SHP | |
6995 | Z(3-JT)=2D0/(Z1**2-Z2**2)*(Z1*Z3+Z2*SQRT(Z3**2-(Z1**2-Z2**2)* | |
6996 | & PMQ(3-JT)**2/SHP)) | |
6997 | ZMIN=2D0*PMQ(3-JT)/SHPR | |
6998 | ZMAX=1D0-PMQ(JT)/SHPR-(SH-PMQ(3-JT)**2)/(SHPR*(SHPR-PMQ(JT))) | |
6999 | ZMAX=MIN(1D0-XH,ZMAX) | |
7000 | IF(Z(3-JT).LT.ZMIN.OR.Z(3-JT).GT.ZMAX) GOTO 330 | |
7001 | KCC=22 | |
7002 | ||
7003 | ELSEIF(ISUB.EQ.73) THEN | |
7004 | C...Z0 + W+/- -> Z0 + W+/- | |
7005 | JS=MINT(2) | |
7006 | XH=SH/SHP | |
7007 | 340 JT=3-MINT(2) | |
7008 | I=MINT(14+JT) | |
7009 | IA=IABS(I) | |
7010 | IF(IA.LE.10) THEN | |
7011 | RVCKM=VINT(180+I)*PYR(0) | |
7012 | DO 350 J=1,MSTP(1) | |
7013 | IB=2*J-1+MOD(IA,2) | |
7014 | IPM=(5-ISIGN(1,I))/2 | |
7015 | IDC=J+MDCY(IA,2)+2 | |
7016 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 350 | |
7017 | MINT(20+JT)=ISIGN(IB,I) | |
7018 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
7019 | IF(RVCKM.LE.0D0) GOTO 360 | |
7020 | 350 CONTINUE | |
7021 | ELSE | |
7022 | IB=2*((IA+1)/2)-1+MOD(IA,2) | |
7023 | MINT(20+JT)=ISIGN(IB,I) | |
7024 | ENDIF | |
7025 | 360 PMQ(JT)=PYMASS(MINT(20+JT)) | |
7026 | MINT(23-JT)=MINT(17-JT) | |
7027 | PMQ(3-JT)=PYMASS(MINT(23-JT)) | |
7028 | JT=INT(1.5D0+PYR(0)) | |
7029 | ZMIN=2D0*PMQ(JT)/SHPR | |
7030 | ZMAX=1D0-PMQ(3-JT)/SHPR-(SH-PMQ(JT)**2)/ | |
7031 | & (SHPR*(SHPR-PMQ(3-JT))) | |
7032 | ZMAX=MIN(1D0-XH,ZMAX) | |
7033 | IF(ZMIN.GE.ZMAX) GOTO 340 | |
7034 | Z(JT)=ZMIN+(ZMAX-ZMIN)*PYR(0) | |
7035 | IF(-1D0+(1D0+XH)/(1D0-Z(JT))-XH/(1D0-Z(JT))**2.LT. | |
7036 | & (1D0-XH)**2/(4D0*XH)*PYR(0)) GOTO 340 | |
7037 | SQC1=1D0-4D0*PMQ(JT)**2/(Z(JT)**2*SHP) | |
7038 | IF(SQC1.LT.1.D-8) GOTO 340 | |
7039 | C1=SQRT(SQC1) | |
7040 | C2=1D0+2D0*(PMAS(23,1)**2-PMQ(JT)**2)/(Z(JT)*SHP) | |
7041 | CTHE(JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
7042 | CTHE(JT)=MIN(1D0,MAX(-1D0,CTHE(JT))) | |
7043 | Z(3-JT)=1D0-XH/(1D0-Z(JT)) | |
7044 | SQC1=1D0-4D0*PMQ(3-JT)**2/(Z(3-JT)**2*SHP) | |
7045 | IF(SQC1.LT.1.D-8) GOTO 340 | |
7046 | C1=SQRT(SQC1) | |
7047 | C2=1D0+2D0*(PMAS(23,1)**2-PMQ(3-JT)**2)/(Z(3-JT)*SHP) | |
7048 | CTHE(3-JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
7049 | CTHE(3-JT)=MIN(1D0,MAX(-1D0,CTHE(3-JT))) | |
7050 | PHIR=PARU(2)*PYR(0) | |
7051 | CPHI=COS(PHIR) | |
7052 | ANG=CTHE(1)*CTHE(2)-SQRT(1D0-CTHE(1)**2)* | |
7053 | & SQRT(1D0-CTHE(2)**2)*CPHI | |
7054 | Z1=2D0-Z(JT) | |
7055 | Z2=ANG*SQRT(Z(JT)**2-4D0*PMQ(JT)**2/SHP) | |
7056 | Z3=1D0-Z(JT)-XH+(PMQ(1)**2+PMQ(2)**2)/SHP | |
7057 | Z(3-JT)=2D0/(Z1**2-Z2**2)*(Z1*Z3+Z2*SQRT(Z3**2-(Z1**2-Z2**2)* | |
7058 | & PMQ(3-JT)**2/SHP)) | |
7059 | ZMIN=2D0*PMQ(3-JT)/SHPR | |
7060 | ZMAX=1D0-PMQ(JT)/SHPR-(SH-PMQ(3-JT)**2)/(SHPR*(SHPR-PMQ(JT))) | |
7061 | ZMAX=MIN(1D0-XH,ZMAX) | |
7062 | IF(Z(3-JT).LT.ZMIN.OR.Z(3-JT).GT.ZMAX) GOTO 340 | |
7063 | KCC=22 | |
7064 | ||
7065 | ELSEIF(ISUB.EQ.74) THEN | |
7066 | C...Z0 + h0 -> Z0 + h0 | |
7067 | ||
7068 | ELSEIF(ISUB.EQ.75) THEN | |
7069 | C...W+ + W- -> gamma + gamma | |
7070 | ||
7071 | ELSEIF(ISUB.EQ.76.OR.ISUB.EQ.77) THEN | |
7072 | C...W+ + W- -> Z0 + Z0; W+ + W- -> W+ + W- | |
7073 | XH=SH/SHP | |
7074 | 370 DO 400 JT=1,2 | |
7075 | I=MINT(14+JT) | |
7076 | IA=IABS(I) | |
7077 | IF(IA.LE.10) THEN | |
7078 | RVCKM=VINT(180+I)*PYR(0) | |
7079 | DO 380 J=1,MSTP(1) | |
7080 | IB=2*J-1+MOD(IA,2) | |
7081 | IPM=(5-ISIGN(1,I))/2 | |
7082 | IDC=J+MDCY(IA,2)+2 | |
7083 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 380 | |
7084 | MINT(20+JT)=ISIGN(IB,I) | |
7085 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
7086 | IF(RVCKM.LE.0D0) GOTO 390 | |
7087 | 380 CONTINUE | |
7088 | ELSE | |
7089 | IB=2*((IA+1)/2)-1+MOD(IA,2) | |
7090 | MINT(20+JT)=ISIGN(IB,I) | |
7091 | ENDIF | |
7092 | 390 PMQ(JT)=PYMASS(MINT(20+JT)) | |
7093 | 400 CONTINUE | |
7094 | JT=INT(1.5D0+PYR(0)) | |
7095 | ZMIN=2D0*PMQ(JT)/SHPR | |
7096 | ZMAX=1D0-PMQ(3-JT)/SHPR-(SH-PMQ(JT)**2)/ | |
7097 | & (SHPR*(SHPR-PMQ(3-JT))) | |
7098 | ZMAX=MIN(1D0-XH,ZMAX) | |
7099 | IF(ZMIN.GE.ZMAX) GOTO 370 | |
7100 | Z(JT)=ZMIN+(ZMAX-ZMIN)*PYR(0) | |
7101 | IF(-1D0+(1D0+XH)/(1D0-Z(JT))-XH/(1D0-Z(JT))**2.LT. | |
7102 | & (1D0-XH)**2/(4D0*XH)*PYR(0)) GOTO 370 | |
7103 | SQC1=1D0-4D0*PMQ(JT)**2/(Z(JT)**2*SHP) | |
7104 | IF(SQC1.LT.1.D-8) GOTO 370 | |
7105 | C1=SQRT(SQC1) | |
7106 | C2=1D0+2D0*(PMAS(24,1)**2-PMQ(JT)**2)/(Z(JT)*SHP) | |
7107 | CTHE(JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
7108 | CTHE(JT)=MIN(1D0,MAX(-1D0,CTHE(JT))) | |
7109 | Z(3-JT)=1D0-XH/(1D0-Z(JT)) | |
7110 | SQC1=1D0-4D0*PMQ(3-JT)**2/(Z(3-JT)**2*SHP) | |
7111 | IF(SQC1.LT.1.D-8) GOTO 370 | |
7112 | C1=SQRT(SQC1) | |
7113 | C2=1D0+2D0*(PMAS(24,1)**2-PMQ(3-JT)**2)/(Z(3-JT)*SHP) | |
7114 | CTHE(3-JT)=(C2-(C2**2-C1**2)/(C2+(2D0*PYR(0)-1D0)*C1))/C1 | |
7115 | CTHE(3-JT)=MIN(1D0,MAX(-1D0,CTHE(3-JT))) | |
7116 | PHIR=PARU(2)*PYR(0) | |
7117 | CPHI=COS(PHIR) | |
7118 | ANG=CTHE(1)*CTHE(2)-SQRT(1D0-CTHE(1)**2)* | |
7119 | & SQRT(1D0-CTHE(2)**2)*CPHI | |
7120 | Z1=2D0-Z(JT) | |
7121 | Z2=ANG*SQRT(Z(JT)**2-4D0*PMQ(JT)**2/SHP) | |
7122 | Z3=1D0-Z(JT)-XH+(PMQ(1)**2+PMQ(2)**2)/SHP | |
7123 | Z(3-JT)=2D0/(Z1**2-Z2**2)*(Z1*Z3+Z2*SQRT(Z3**2-(Z1**2-Z2**2)* | |
7124 | & PMQ(3-JT)**2/SHP)) | |
7125 | ZMIN=2D0*PMQ(3-JT)/SHPR | |
7126 | ZMAX=1D0-PMQ(JT)/SHPR-(SH-PMQ(3-JT)**2)/(SHPR*(SHPR-PMQ(JT))) | |
7127 | ZMAX=MIN(1D0-XH,ZMAX) | |
7128 | IF(Z(3-JT).LT.ZMIN.OR.Z(3-JT).GT.ZMAX) GOTO 370 | |
7129 | KCC=22 | |
7130 | ||
7131 | ELSEIF(ISUB.EQ.78) THEN | |
7132 | C...W+/- + h0 -> W+/- + h0 | |
7133 | ||
7134 | ELSEIF(ISUB.EQ.79) THEN | |
7135 | C...h0 + h0 -> h0 + h0 | |
7136 | ||
7137 | ELSEIF(ISUB.EQ.80) THEN | |
7138 | C...q + gamma -> q' + pi+/-; th=(p(q)-p(q'))**2 | |
7139 | IF(MINT(15).EQ.22) JS=2 | |
7140 | I=MINT(14+JS) | |
7141 | IA=IABS(I) | |
7142 | MINT(23-JS)=ISIGN(211,KCHG(IA,1)*I) | |
7143 | IB=3-IA | |
7144 | MINT(20+JS)=ISIGN(IB,I) | |
7145 | KCC=22 | |
7146 | ENDIF | |
7147 | ||
7148 | ELSEIF(ISUB.LE.90) THEN | |
7149 | IF(ISUB.EQ.81) THEN | |
7150 | C...q + qbar -> Q + Qbar; th = (p(q)-p(Q))**2 | |
7151 | MINT(21)=ISIGN(MINT(55),MINT(15)) | |
7152 | MINT(22)=-MINT(21) | |
7153 | KCC=4 | |
7154 | ||
7155 | ELSEIF(ISUB.EQ.82) THEN | |
7156 | C...g + g -> Q + Qbar; th arbitrary | |
7157 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7158 | MINT(21)=ISIGN(MINT(55),KCS) | |
7159 | MINT(22)=-MINT(21) | |
7160 | KCC=MINT(2)+10 | |
7161 | ||
7162 | ELSEIF(ISUB.EQ.83) THEN | |
7163 | C...f + q -> f' + Q; th = (p(f) - p(f'))**2 | |
7164 | KFOLD=MINT(16) | |
7165 | IF(MINT(2).EQ.2) KFOLD=MINT(15) | |
7166 | KFAOLD=IABS(KFOLD) | |
7167 | IF(KFAOLD.GT.10) THEN | |
7168 | KFANEW=KFAOLD+2*MOD(KFAOLD,2)-1 | |
7169 | ELSE | |
7170 | RCKM=VINT(180+KFOLD)*PYR(0) | |
7171 | IPM=(5-ISIGN(1,KFOLD))/2 | |
7172 | KFANEW=-MOD(KFAOLD+1,2) | |
7173 | 410 KFANEW=KFANEW+2 | |
7174 | IDC=MDCY(KFAOLD,2)+(KFANEW+1)/2+2 | |
7175 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.IPM) THEN | |
7176 | IF(MOD(KFAOLD,2).EQ.0) RCKM=RCKM- | |
7177 | & VCKM(KFAOLD/2,(KFANEW+1)/2) | |
7178 | IF(MOD(KFAOLD,2).EQ.1) RCKM=RCKM- | |
7179 | & VCKM(KFANEW/2,(KFAOLD+1)/2) | |
7180 | ENDIF | |
7181 | IF(KFANEW.LE.6.AND.RCKM.GT.0D0) GOTO 410 | |
7182 | ENDIF | |
7183 | IF(MINT(2).EQ.1) THEN | |
7184 | MINT(21)=ISIGN(MINT(55),MINT(15)) | |
7185 | MINT(22)=ISIGN(KFANEW,MINT(16)) | |
7186 | ELSE | |
7187 | MINT(21)=ISIGN(KFANEW,MINT(15)) | |
7188 | MINT(22)=ISIGN(MINT(55),MINT(16)) | |
7189 | JS=2 | |
7190 | ENDIF | |
7191 | KCC=22 | |
7192 | ||
7193 | ELSEIF(ISUB.EQ.84) THEN | |
7194 | C...g + gamma -> Q + Qbar; th arbitary | |
7195 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7196 | MINT(21)=ISIGN(MINT(55),KCS) | |
7197 | MINT(22)=-MINT(21) | |
7198 | KCC=27 | |
7199 | IF(MINT(16).EQ.21) KCC=28 | |
7200 | ||
7201 | ELSEIF(ISUB.EQ.85) THEN | |
7202 | C...gamma + gamma -> F + Fbar; th arbitary | |
7203 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7204 | MINT(21)=ISIGN(MINT(56),KCS) | |
7205 | MINT(22)=-MINT(21) | |
7206 | KCC=21 | |
7207 | ||
7208 | ELSEIF(ISUB.GE.86.AND.ISUB.LE.89) THEN | |
7209 | C...g + g -> (J/Psi, chi_0c, chi_1c or chi_2c) + g | |
7210 | MINT(21)=KFPR(ISUB,1) | |
7211 | MINT(22)=KFPR(ISUB,2) | |
7212 | KCC=24 | |
7213 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7214 | ENDIF | |
7215 | ||
7216 | ELSEIF(ISUB.LE.100) THEN | |
7217 | IF(ISUB.EQ.95) THEN | |
7218 | C...Low-pT ( = energyless g + g -> g + g) | |
7219 | KCC=MINT(2)+12 | |
7220 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7221 | ||
7222 | ELSEIF(ISUB.EQ.96) THEN | |
7223 | C...Multiple interactions (should be reassigned to QCD process) | |
7224 | ENDIF | |
7225 | ||
7226 | ELSEIF(ISUB.LE.110) THEN | |
7227 | IF(ISUB.EQ.101) THEN | |
7228 | C...g + g -> gamma*/Z0 | |
7229 | KCC=21 | |
7230 | KFRES=22 | |
7231 | ||
7232 | ELSEIF(ISUB.EQ.102) THEN | |
7233 | C...g + g -> h0 (or H0, or A0) | |
7234 | KCC=21 | |
7235 | KFRES=KFHIGG | |
7236 | ||
7237 | ELSEIF(ISUB.EQ.103) THEN | |
7238 | C...gamma + gamma -> h0 (or H0, or A0) | |
7239 | KCC=21 | |
7240 | KFRES=KFHIGG | |
7241 | ||
7242 | ELSEIF(ISUB.EQ.106) THEN | |
7243 | C...g + g -> J/Psi + gamma | |
7244 | MINT(21)=KFPR(ISUB,1) | |
7245 | MINT(22)=KFPR(ISUB,2) | |
7246 | KCC=21 | |
7247 | ||
7248 | ELSEIF(ISUB.EQ.107) THEN | |
7249 | C...g + gamma -> J/Psi + g | |
7250 | MINT(21)=KFPR(ISUB,1) | |
7251 | MINT(22)=KFPR(ISUB,2) | |
7252 | KCC=22 | |
7253 | IF(MINT(16).EQ.22) KCC=33 | |
7254 | ||
7255 | ELSEIF(ISUB.EQ.108) THEN | |
7256 | C...gamma + gamma -> J/Psi + gamma | |
7257 | MINT(21)=KFPR(ISUB,1) | |
7258 | MINT(22)=KFPR(ISUB,2) | |
7259 | ||
7260 | ELSEIF(ISUB.EQ.110) THEN | |
7261 | C...f + fbar -> gamma + h0; th arbitrary | |
7262 | IF(PYR(0).GT.0.5D0) JS=2 | |
7263 | MINT(20+JS)=22 | |
7264 | MINT(23-JS)=KFHIGG | |
7265 | ENDIF | |
7266 | ||
7267 | ELSEIF(ISUB.LE.120) THEN | |
7268 | IF(ISUB.EQ.111) THEN | |
7269 | C...f + fbar -> g + h0; th arbitrary | |
7270 | IF(PYR(0).GT.0.5D0) JS=2 | |
7271 | MINT(20+JS)=21 | |
7272 | MINT(23-JS)=25 | |
7273 | KCC=17+JS | |
7274 | ||
7275 | ELSEIF(ISUB.EQ.112) THEN | |
7276 | C...f + g -> f + h0; th = (p(f) - p(f))**2 | |
7277 | IF(MINT(15).EQ.21) JS=2 | |
7278 | MINT(23-JS)=25 | |
7279 | KCC=15+JS | |
7280 | KCS=ISIGN(1,MINT(14+JS)) | |
7281 | ||
7282 | ELSEIF(ISUB.EQ.113) THEN | |
7283 | C...g + g -> g + h0; th arbitrary | |
7284 | IF(PYR(0).GT.0.5D0) JS=2 | |
7285 | MINT(23-JS)=25 | |
7286 | KCC=22+JS | |
7287 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7288 | ||
7289 | ELSEIF(ISUB.EQ.114) THEN | |
7290 | C...g + g -> gamma + gamma; th arbitrary | |
7291 | IF(PYR(0).GT.0.5D0) JS=2 | |
7292 | MINT(21)=22 | |
7293 | MINT(22)=22 | |
7294 | KCC=21 | |
7295 | ||
7296 | ELSEIF(ISUB.EQ.115) THEN | |
7297 | C...g + g -> g + gamma; th arbitrary | |
7298 | IF(PYR(0).GT.0.5D0) JS=2 | |
7299 | MINT(23-JS)=22 | |
7300 | KCC=22+JS | |
7301 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7302 | ||
7303 | ELSEIF(ISUB.EQ.116) THEN | |
7304 | C...g + g -> gamma + Z0 | |
7305 | ||
7306 | ELSEIF(ISUB.EQ.117) THEN | |
7307 | C...g + g -> Z0 + Z0 | |
7308 | ||
7309 | ELSEIF(ISUB.EQ.118) THEN | |
7310 | C...g + g -> W+ + W- | |
7311 | ENDIF | |
7312 | ||
7313 | ELSEIF(ISUB.LE.140) THEN | |
7314 | IF(ISUB.EQ.121) THEN | |
7315 | C...g + g -> Q + Qbar + h0 | |
7316 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7317 | MINT(21)=ISIGN(KFPR(ISUBSV,2),KCS) | |
7318 | MINT(22)=-MINT(21) | |
7319 | KCC=11+INT(0.5D0+PYR(0)) | |
7320 | KFRES=KFHIGG | |
7321 | ||
7322 | ELSEIF(ISUB.EQ.122) THEN | |
7323 | C...q + qbar -> Q + Qbar + h0 | |
7324 | MINT(21)=ISIGN(KFPR(ISUBSV,2),MINT(15)) | |
7325 | MINT(22)=-MINT(21) | |
7326 | KCC=4 | |
7327 | KFRES=KFHIGG | |
7328 | ||
7329 | ELSEIF(ISUB.EQ.123) THEN | |
7330 | C...f + f' -> f + f' + h0 (or H0, or A0) (Z0 + Z0 -> h0 as | |
7331 | C...inner process) | |
7332 | KCC=22 | |
7333 | KFRES=KFHIGG | |
7334 | ||
7335 | ELSEIF(ISUB.EQ.124) THEN | |
7336 | C...f + f' -> f" + f"' + h0 (or H0, or A) (W+ + W- -> h0 as | |
7337 | C...inner process) | |
7338 | DO 430 JT=1,2 | |
7339 | I=MINT(14+JT) | |
7340 | IA=IABS(I) | |
7341 | IF(IA.LE.10) THEN | |
7342 | RVCKM=VINT(180+I)*PYR(0) | |
7343 | DO 420 J=1,MSTP(1) | |
7344 | IB=2*J-1+MOD(IA,2) | |
7345 | IPM=(5-ISIGN(1,I))/2 | |
7346 | IDC=J+MDCY(IA,2)+2 | |
7347 | IF(MDME(IDC,1).NE.1.AND.MDME(IDC,1).NE.IPM) GOTO 420 | |
7348 | MINT(20+JT)=ISIGN(IB,I) | |
7349 | RVCKM=RVCKM-VCKM((IA+1)/2,(IB+1)/2) | |
7350 | IF(RVCKM.LE.0D0) GOTO 430 | |
7351 | 420 CONTINUE | |
7352 | ELSE | |
7353 | IB=2*((IA+1)/2)-1+MOD(IA,2) | |
7354 | MINT(20+JT)=ISIGN(IB,I) | |
7355 | ENDIF | |
7356 | 430 CONTINUE | |
7357 | KCC=22 | |
7358 | KFRES=KFHIGG | |
7359 | ||
7360 | ELSEIF(ISUB.EQ.131) THEN | |
7361 | C...g + g -> Z0 + q + qbar | |
7362 | ENDIF | |
7363 | ||
7364 | ELSEIF(ISUB.LE.160) THEN | |
7365 | IF(ISUB.EQ.141) THEN | |
7366 | C...f + fbar -> gamma*/Z0/Z'0 | |
7367 | KFRES=32 | |
7368 | ||
7369 | ELSEIF(ISUB.EQ.142) THEN | |
7370 | C...f + fbar' -> W'+/- | |
7371 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7372 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7373 | KFRES=ISIGN(34,KCH1+KCH2) | |
7374 | ||
7375 | ELSEIF(ISUB.EQ.143) THEN | |
7376 | C...f + fbar' -> H+/- | |
7377 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7378 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7379 | KFRES=ISIGN(37,KCH1+KCH2) | |
7380 | ||
7381 | ELSEIF(ISUB.EQ.144) THEN | |
7382 | C...f + fbar' -> R | |
7383 | KFRES=ISIGN(40,MINT(15)+MINT(16)) | |
7384 | ||
7385 | ELSEIF(ISUB.EQ.145) THEN | |
7386 | C...q + l -> LQ (leptoquark) | |
7387 | IF(IABS(MINT(16)).LE.8) JS=2 | |
7388 | KFRES=ISIGN(39,MINT(14+JS)) | |
7389 | KCC=28+JS | |
7390 | KCS=ISIGN(1,MINT(14+JS)) | |
7391 | ||
7392 | ELSEIF(ISUB.EQ.147.OR.ISUB.EQ.148) THEN | |
7393 | C...q + g -> q* (excited quark) | |
7394 | IF(MINT(15).EQ.21) JS=2 | |
7395 | KFRES=ISIGN(KFPR(ISUB,1),MINT(14+JS)) | |
7396 | KCC=30+JS | |
7397 | KCS=ISIGN(1,MINT(14+JS)) | |
7398 | ||
7399 | ELSEIF(ISUB.EQ.149) THEN | |
7400 | C...g + g -> eta_techni | |
7401 | KFRES=38 | |
7402 | KCC=23 | |
7403 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7404 | ENDIF | |
7405 | ||
7406 | ELSEIF(ISUB.LE.200) THEN | |
7407 | IF(ISUB.EQ.161) THEN | |
7408 | C...f + g -> f' + H+/-; th = (p(f)-p(f'))**2 | |
7409 | IF(MINT(15).EQ.21) JS=2 | |
7410 | I=MINT(14+JS) | |
7411 | IA=IABS(I) | |
7412 | MINT(23-JS)=ISIGN(37,KCHG(IA,1)*I) | |
7413 | IB=IA+MOD(IA,2)-MOD(IA+1,2) | |
7414 | MINT(20+JS)=ISIGN(IB,I) | |
7415 | KCC=15+JS | |
7416 | KCS=ISIGN(1,MINT(14+JS)) | |
7417 | ||
7418 | ELSEIF(ISUB.EQ.162) THEN | |
7419 | C...q + g -> LQ + lbar; LQ=leptoquark; th=(p(q)-p(LQ))^2 | |
7420 | IF(MINT(15).EQ.21) JS=2 | |
7421 | MINT(20+JS)=ISIGN(39,MINT(14+JS)) | |
7422 | KFLQL=KFDP(MDCY(39,2),2) | |
7423 | MINT(23-JS)=-ISIGN(KFLQL,MINT(14+JS)) | |
7424 | KCC=15+JS | |
7425 | KCS=ISIGN(1,MINT(14+JS)) | |
7426 | ||
7427 | ELSEIF(ISUB.EQ.163) THEN | |
7428 | C...g + g -> LQ + LQbar; LQ=leptoquark; th arbitrary | |
7429 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7430 | MINT(21)=ISIGN(39,KCS) | |
7431 | MINT(22)=-MINT(21) | |
7432 | KCC=MINT(2)+10 | |
7433 | ||
7434 | ELSEIF(ISUB.EQ.164) THEN | |
7435 | C...q + qbar -> LQ + LQbar; LQ=leptoquark; th=(p(q)-p(LQ))**2 | |
7436 | MINT(21)=ISIGN(39,MINT(15)) | |
7437 | MINT(22)=-MINT(21) | |
7438 | KCC=4 | |
7439 | ||
7440 | ELSEIF(ISUB.EQ.165) THEN | |
7441 | C...q + qbar -> l- + l+; th=(p(q)-p(l-))**2 | |
7442 | MINT(21)=ISIGN(KFPR(ISUB,1),MINT(15)) | |
7443 | MINT(22)=-MINT(21) | |
7444 | ||
7445 | ELSEIF(ISUB.EQ.166) THEN | |
7446 | C...q + qbar' -> l + nu; th=(p(u)-p(nu))**2 or (p(ubar)-p(nubar))**2 | |
7447 | IF(MOD(MINT(15),2).EQ.0) THEN | |
7448 | MINT(21)=ISIGN(KFPR(ISUB,1)+1,MINT(15)) | |
7449 | MINT(22)=ISIGN(KFPR(ISUB,1),MINT(16)) | |
7450 | ELSE | |
7451 | MINT(21)=ISIGN(KFPR(ISUB,1),MINT(15)) | |
7452 | MINT(22)=ISIGN(KFPR(ISUB,1)+1,MINT(16)) | |
7453 | ENDIF | |
7454 | ||
7455 | ELSEIF(ISUB.EQ.167.OR.ISUB.EQ.168) THEN | |
7456 | C...q + q' -> q" + q* (excited quark) | |
7457 | KFQSTR=KFPR(ISUB,2) | |
7458 | KFQEXC=MOD(KFQSTR,KEXCIT) | |
7459 | JS=MINT(2) | |
7460 | MINT(20+JS)=ISIGN(KFQSTR,MINT(14+JS)) | |
7461 | IF(IABS(MINT(15)).NE.KFQEXC.AND.IABS(MINT(16)).NE.KFQEXC) | |
7462 | & MINT(23-JS)=ISIGN(KFQEXC,MINT(17-JS)) | |
7463 | KCC=22 | |
7464 | ||
7465 | ELSEIF(ISUB.EQ.191) THEN | |
7466 | C...f + fbar -> rho_tech0. | |
7467 | KFRES=54 | |
7468 | ||
7469 | ELSEIF(ISUB.EQ.192) THEN | |
7470 | C...f + fbar' -> rho_tech+/- | |
7471 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7472 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7473 | KFRES=ISIGN(55,KCH1+KCH2) | |
7474 | ||
7475 | ELSEIF(ISUB.EQ.193) THEN | |
7476 | C...f + fbar -> omega_tech0. | |
7477 | KFRES=56 | |
7478 | ||
7479 | ELSEIF(ISUB.EQ.194) THEN | |
7480 | C...f + fbar -> f' + fbar' via mixture of s-channel | |
7481 | C...rho_tech and omega_tech; th=(p(f)-p(f'))**2 | |
7482 | MINT(21)=ISIGN(KFPR(ISUB,1),MINT(15)) | |
7483 | MINT(22)=-MINT(21) | |
7484 | ENDIF | |
7485 | ||
7486 | CMRENNA++ | |
7487 | ELSEIF(ISUB.LE.215) THEN | |
7488 | IF(ISUB.EQ.201) THEN | |
7489 | C...f + fbar -> ~e_L + ~e_Lbar | |
7490 | MINT(21)=ISIGN(KSUSY1+11,KCS) | |
7491 | MINT(22)=-MINT(21) | |
7492 | ||
7493 | ELSEIF(ISUB.EQ.202) THEN | |
7494 | C...f + fbar -> ~e_R + ~e_Rbar | |
7495 | MINT(21)=ISIGN(KSUSY2+11,KCS) | |
7496 | MINT(22)=-MINT(21) | |
7497 | ||
7498 | ELSEIF(ISUB.EQ.203) THEN | |
7499 | C...f + fbar -> ~e_R + ~e_Lbar | |
7500 | KCS=1 | |
7501 | IF(MINT(2).EQ.2) KCS=-1 | |
7502 | MINT(21)=ISIGN(KSUSY1+11,KCS) | |
7503 | MINT(22)=-ISIGN(KSUSY2+11,KCS) | |
7504 | ||
7505 | ELSEIF(ISUB.EQ.204) THEN | |
7506 | C...f + fbar -> ~mu_L + ~mu_Lbar | |
7507 | MINT(21)=ISIGN(KSUSY1+13,KCS) | |
7508 | MINT(22)=-MINT(21) | |
7509 | ||
7510 | ELSEIF(ISUB.EQ.205) THEN | |
7511 | C...f + fbar -> ~mu_R + ~mu_Rbar | |
7512 | MINT(21)=ISIGN(KSUSY2+13,KCS) | |
7513 | MINT(22)=-MINT(21) | |
7514 | ||
7515 | ELSEIF(ISUB.EQ.206) THEN | |
7516 | C...f + fbar -> ~mu_L + ~mu_Rbar | |
7517 | KCS=1 | |
7518 | IF(MINT(2).EQ.2) KCS=-1 | |
7519 | MINT(21)=ISIGN(KSUSY1+13,KCS) | |
7520 | MINT(22)=-ISIGN(KSUSY2+13,KCS) | |
7521 | ||
7522 | ELSEIF(ISUB.EQ.207) THEN | |
7523 | C...f + fbar -> ~tau_1 + ~tau_1bar | |
7524 | MINT(21)=ISIGN(KSUSY1+15,KCS) | |
7525 | MINT(22)=-MINT(21) | |
7526 | ||
7527 | ELSEIF(ISUB.EQ.208) THEN | |
7528 | C...f + fbar -> ~tau_2 + ~tau_2bar | |
7529 | MINT(21)=ISIGN(KSUSY2+15,KCS) | |
7530 | MINT(22)=-MINT(21) | |
7531 | ||
7532 | ELSEIF(ISUB.EQ.209) THEN | |
7533 | C...f + fbar -> ~tau_1 + ~tau_2bar | |
7534 | KCS=1 | |
7535 | IF(MINT(2).EQ.2) KCS=-1 | |
7536 | MINT(21)=ISIGN(KSUSY1+15,KCS) | |
7537 | MINT(22)=-ISIGN(KSUSY2+15,KCS) | |
7538 | ||
7539 | ELSEIF(ISUB.EQ.210) THEN | |
7540 | C...q + qbar' -> ~l_L + ~nulbar; th arbitrary | |
7541 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7542 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7543 | MINT(21)=-ISIGN(KFPR(ISUB,1),KCH1+KCH2) | |
7544 | MINT(22)=ISIGN(KFPR(ISUB,2),KCH1+KCH2) | |
7545 | ||
7546 | ELSEIF(ISUB.EQ.211) THEN | |
7547 | C...q + qbar'-> ~tau_1 + ~nutaubar; th arbitrary | |
7548 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7549 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7550 | MINT(21)=-ISIGN(KSUSY1+15,KCH1+KCH2) | |
7551 | MINT(22)=ISIGN(KSUSY1+16,KCH1+KCH2) | |
7552 | ||
7553 | ELSEIF(ISUB.EQ.212) THEN | |
7554 | C...q + qbar'-> ~tau_2 + ~nutaubar; th arbitrary | |
7555 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7556 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7557 | MINT(21)=-ISIGN(KSUSY2+15,KCH1+KCH2) | |
7558 | MINT(22)=ISIGN(KSUSY1+16,KCH1+KCH2) | |
7559 | ||
7560 | ELSEIF(ISUB.EQ.213) THEN | |
7561 | C...f + fbar -> ~nul + ~nulbar | |
7562 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
7563 | MINT(22)=-MINT(21) | |
7564 | ||
7565 | ELSEIF(ISUB.EQ.214) THEN | |
7566 | C...f + fbar -> ~nutau + ~nutaubar | |
7567 | MINT(21)=ISIGN(KSUSY1+16,KCS) | |
7568 | MINT(22)=-MINT(21) | |
7569 | ENDIF | |
7570 | ||
7571 | ELSEIF(ISUB.LE.225) THEN | |
7572 | IF(ISUB.EQ.216) THEN | |
7573 | C...f + fbar -> ~chi01 + ~chi01 | |
7574 | MINT(21)=KSUSY1+22 | |
7575 | MINT(22)=KSUSY1+22 | |
7576 | ||
7577 | ELSEIF(ISUB.EQ.217) THEN | |
7578 | C...f + fbar -> ~chi02 + ~chi02 | |
7579 | MINT(21)=KSUSY1+23 | |
7580 | MINT(22)=KSUSY1+23 | |
7581 | ||
7582 | ELSEIF(ISUB.EQ.218 ) THEN | |
7583 | C...f + fbar -> ~chi03 + ~chi03 | |
7584 | MINT(21)=KSUSY1+25 | |
7585 | MINT(22)=KSUSY1+25 | |
7586 | ||
7587 | ELSEIF(ISUB.EQ.219 ) THEN | |
7588 | C...f + fbar -> ~chi04 + ~chi04 | |
7589 | MINT(21)=KSUSY1+35 | |
7590 | MINT(22)=KSUSY1+35 | |
7591 | ||
7592 | ELSEIF(ISUB.EQ.220 ) THEN | |
7593 | C...f + fbar -> ~chi01 + ~chi02 | |
7594 | IF(PYR(0).GT.0.5D0) JS=2 | |
7595 | MINT(20+JS)=KSUSY1+22 | |
7596 | MINT(23-JS)=KSUSY1+23 | |
7597 | ||
7598 | ELSEIF(ISUB.EQ.221 ) THEN | |
7599 | C...f + fbar -> ~chi01 + ~chi03 | |
7600 | IF(PYR(0).GT.0.5D0) JS=2 | |
7601 | MINT(20+JS)=KSUSY1+22 | |
7602 | MINT(23-JS)=KSUSY1+25 | |
7603 | ||
7604 | ELSEIF(ISUB.EQ.222) THEN | |
7605 | C...f + fbar -> ~chi01 + ~chi04 | |
7606 | IF(PYR(0).GT.0.5D0) JS=2 | |
7607 | MINT(20+JS)=KSUSY1+22 | |
7608 | MINT(23-JS)=KSUSY1+35 | |
7609 | ||
7610 | ELSEIF(ISUB.EQ.223) THEN | |
7611 | C...f + fbar -> ~chi02 + ~chi03 | |
7612 | IF(PYR(0).GT.0.5D0) JS=2 | |
7613 | MINT(20+JS)=KSUSY1+23 | |
7614 | MINT(23-JS)=KSUSY1+25 | |
7615 | ||
7616 | ELSEIF(ISUB.EQ.224) THEN | |
7617 | C...f + fbar -> ~chi02 + ~chi04 | |
7618 | IF(PYR(0).GT.0.5D0) JS=2 | |
7619 | MINT(20+JS)=KSUSY1+23 | |
7620 | MINT(23-JS)=KSUSY1+35 | |
7621 | ||
7622 | ELSEIF(ISUB.EQ.225) THEN | |
7623 | C...f + fbar -> ~chi03 + ~chi04 | |
7624 | IF(PYR(0).GT.0.5D0) JS=2 | |
7625 | MINT(20+JS)=KSUSY1+25 | |
7626 | MINT(23-JS)=KSUSY1+35 | |
7627 | ENDIF | |
7628 | ||
7629 | ELSEIF(ISUB.LE.236) THEN | |
7630 | IF(ISUB.EQ.226) THEN | |
7631 | C...f + fbar -> ~chi+-1 + ~chi-+1 | |
7632 | C...th=(p(q)-p(chi+))**2 or (p(qbar)-p(chi-))**2 | |
7633 | MINT(21)=ISIGN(KSUSY1+24,MINT(15)) | |
7634 | MINT(22)=-MINT(21) | |
7635 | ||
7636 | ELSEIF(ISUB.EQ.227) THEN | |
7637 | C...f + fbar -> ~chi+-2 + ~chi-+2 | |
7638 | MINT(21)=ISIGN(KSUSY1+37,MINT(15)) | |
7639 | MINT(22)=-MINT(21) | |
7640 | ||
7641 | ELSEIF(ISUB.EQ.228) THEN | |
7642 | C...f + fbar -> ~chi+-1 + ~chi-+2 | |
7643 | C...th=(p(q)-p(chi1+))**2 or th=(p(qbar)-p(chi1-))**2 | |
7644 | C...js=1 if pyr<.5, js=2 if pyr>.5 | |
7645 | C...if 15=q, 16=qbar and js=1, chi1+ + chi2-, th=(q-chi1+)**2 | |
7646 | C...if 15=qbar, 16=q and js=1, chi2- + chi1+, th=(q-chi1+)**2 | |
7647 | C...if 15=q, 16=qbar and js=2, chi1- + chi2+, th=(qbar-chi1-)**2 | |
7648 | C...if 15=qbar, 16=q and js=2, chi2+ + chi1-, th=(q-chi1-)**2 | |
7649 | KCH1=ISIGN(1,MINT(15)) | |
7650 | KCH2=INT(1-KCH1)/2 | |
7651 | IF(MINT(2).EQ.1) THEN | |
7652 | MINT(22-KCH2)= -(KSUSY1+24) | |
7653 | MINT(21+KCH2)= KSUSY1+37 | |
7654 | IF(KCH2.EQ.0) JS=2 | |
7655 | ELSE | |
7656 | MINT(21+KCH2)= KSUSY1+24 | |
7657 | MINT(22-KCH2)= -(KSUSY1+37) | |
7658 | IF(KCH2.EQ.1) JS=2 | |
7659 | ENDIF | |
7660 | ||
7661 | ELSEIF(ISUB.EQ.229) THEN | |
7662 | C...q + qbar' -> ~chi01 + ~chi+-1 | |
7663 | C...th=(p(u)-p(chi+))**2 or (p(ubar)-p(chi-))**2 | |
7664 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7665 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7666 | C...CHECK THIS | |
7667 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7668 | MINT(20+JS)=KSUSY1+22 | |
7669 | MINT(23-JS)=ISIGN(KSUSY1+24,KCH1+KCH2) | |
7670 | ||
7671 | ELSEIF(ISUB.EQ.230) THEN | |
7672 | C...q + qbar' -> ~chi02 + ~chi+-1 | |
7673 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7674 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7675 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7676 | MINT(20+JS)=KSUSY1+23 | |
7677 | MINT(23-JS)=ISIGN(KSUSY1+24,KCH1+KCH2) | |
7678 | ||
7679 | ELSEIF(ISUB.EQ.231) THEN | |
7680 | C...q + qbar' -> ~chi03 + ~chi+-1 | |
7681 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7682 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7683 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7684 | MINT(20+JS)=KSUSY1+25 | |
7685 | MINT(23-JS)=ISIGN(KSUSY1+24,KCH1+KCH2) | |
7686 | ||
7687 | ELSEIF(ISUB.EQ.232) THEN | |
7688 | C...q + qbar' -> ~chi04 + ~chi+-1 | |
7689 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7690 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7691 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7692 | MINT(20+JS)=KSUSY1+35 | |
7693 | MINT(23-JS)=ISIGN(KSUSY1+24,KCH1+KCH2) | |
7694 | ||
7695 | ELSEIF(ISUB.EQ.233) THEN | |
7696 | C...q + qbar' -> ~chi01 + ~chi+-2 | |
7697 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7698 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7699 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7700 | MINT(20+JS)=KSUSY1+22 | |
7701 | MINT(23-JS)=ISIGN(KSUSY1+37,KCH1+KCH2) | |
7702 | ||
7703 | ELSEIF(ISUB.EQ.234) THEN | |
7704 | C...q + qbar' -> ~chi02 + ~chi+-2 | |
7705 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7706 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7707 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7708 | MINT(20+JS)=KSUSY1+23 | |
7709 | MINT(23-JS)=ISIGN(KSUSY1+37,KCH1+KCH2) | |
7710 | ||
7711 | ELSEIF(ISUB.EQ.235) THEN | |
7712 | C...q + qbar' -> ~chi03 + ~chi+-2 | |
7713 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7714 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7715 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7716 | MINT(20+JS)=KSUSY1+25 | |
7717 | MINT(23-JS)=ISIGN(KSUSY1+37,KCH1+KCH2) | |
7718 | ||
7719 | ELSEIF(ISUB.EQ.236) THEN | |
7720 | C...q + qbar' -> ~chi04 + ~chi+-2 | |
7721 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7722 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7723 | IF(MOD(MINT(15),2).NE.0) JS=2 | |
7724 | MINT(20+JS)=KSUSY1+35 | |
7725 | MINT(23-JS)=ISIGN(KSUSY1+37,KCH1+KCH2) | |
7726 | ENDIF | |
7727 | ||
7728 | ELSEIF(ISUB.LE.245) THEN | |
7729 | IF(ISUB.EQ.237) THEN | |
7730 | C...q + qbar -> ~chi01 + ~g | |
7731 | C...th arbitrary | |
7732 | IF(PYR(0).GT.0.5D0) JS=2 | |
7733 | MINT(20+JS)=KSUSY1+21 | |
7734 | MINT(23-JS)=KSUSY1+22 | |
7735 | KCC=17+JS | |
7736 | ||
7737 | ELSEIF(ISUB.EQ.238) THEN | |
7738 | C...q + qbar -> ~chi02 + ~g | |
7739 | C...th arbitrary | |
7740 | IF(PYR(0).GT.0.5D0) JS=2 | |
7741 | MINT(20+JS)=KSUSY1+21 | |
7742 | MINT(23-JS)=KSUSY1+23 | |
7743 | KCC=17+JS | |
7744 | ||
7745 | ELSEIF(ISUB.EQ.239) THEN | |
7746 | C...q + qbar -> ~chi03 + ~g | |
7747 | C...th arbitrary | |
7748 | IF(PYR(0).GT.0.5D0) JS=2 | |
7749 | MINT(20+JS)=KSUSY1+21 | |
7750 | MINT(23-JS)=KSUSY1+25 | |
7751 | KCC=17+JS | |
7752 | ||
7753 | ELSEIF(ISUB.EQ.240) THEN | |
7754 | C...q + qbar -> ~chi04 + ~g | |
7755 | C...th arbitrary | |
7756 | IF(PYR(0).GT.0.5D0) JS=2 | |
7757 | MINT(20+JS)=KSUSY1+21 | |
7758 | MINT(23-JS)=KSUSY1+35 | |
7759 | KCC=17+JS | |
7760 | ||
7761 | ELSEIF(ISUB.EQ.241) THEN | |
7762 | C...q + qbar' -> ~chi+-1 + ~g | |
7763 | C...if 15=u, 16=dbar, then (kch1+kch2)>0, js=1, chi+ | |
7764 | C...if 15=d, 16=ubar, then (kch1+kch2)<0, js=2, chi- | |
7765 | C...if 15=ubar, 16=d, then (kch1+kch2)<0, js=1, chi- | |
7766 | C...if 15=dbar, 16=u, then (kch1+kch2)>0, js=2, chi+ | |
7767 | C...th=(p(q)-p(chi+))**2 or (p(qbar')-p(chi-))**2 | |
7768 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7769 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7770 | JS=1 | |
7771 | IF(MINT(15)*(KCH1+KCH2).GT.0) JS=2 | |
7772 | MINT(20+JS)=KSUSY1+21 | |
7773 | MINT(23-JS)=ISIGN(KSUSY1+24,KCH1+KCH2) | |
7774 | KCC=17+JS | |
7775 | ||
7776 | ELSEIF(ISUB.EQ.242) THEN | |
7777 | C...q + qbar' -> ~chi+-2 + ~g | |
7778 | C...if 15=u, 16=dbar, then (kch1+kch2)>0, js=1, chi+ | |
7779 | C...if 15=d, 16=ubar, then (kch1+kch2)<0, js=2, chi- | |
7780 | C...if 15=ubar, 16=d, then (kch1+kch2)<0, js=1, chi- | |
7781 | C...if 15=dbar, 16=u, then (kch1+kch2)>0, js=2, chi+ | |
7782 | C...th=(p(q)-p(chi+))**2 or (p(qbar')-p(chi-))**2 | |
7783 | KCH1=KCHG(IABS(MINT(15)),1)*ISIGN(1,MINT(15)) | |
7784 | KCH2=KCHG(IABS(MINT(16)),1)*ISIGN(1,MINT(16)) | |
7785 | JS=1 | |
7786 | IF(MINT(15)*(KCH1+KCH2).GT.0) JS=2 | |
7787 | MINT(20+JS)=KSUSY1+21 | |
7788 | MINT(23-JS)=ISIGN(KSUSY1+37,KCH1+KCH2) | |
7789 | KCC=17+JS | |
7790 | ||
7791 | ELSEIF(ISUB.EQ.243) THEN | |
7792 | C...q + qbar -> ~g + ~g ; th arbitrary | |
7793 | MINT(21)=KSUSY1+21 | |
7794 | MINT(22)=KSUSY1+21 | |
7795 | KCC=MINT(2)+4 | |
7796 | ||
7797 | ELSEIF(ISUB.EQ.244) THEN | |
7798 | C...g + g -> ~g + ~g ; th arbitrary | |
7799 | KCC=MINT(2)+12 | |
7800 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7801 | MINT(21)=KSUSY1+21 | |
7802 | MINT(22)=KSUSY1+21 | |
7803 | ENDIF | |
7804 | ||
7805 | ELSEIF(ISUB.LE.260) THEN | |
7806 | IF(ISUB.EQ.246) THEN | |
7807 | C...qj + g -> ~qj_L + ~chi01 | |
7808 | IF(MINT(15).EQ.21) JS=2 | |
7809 | I=MINT(14+JS) | |
7810 | IA=IABS(I) | |
7811 | MINT(20+JS)=ISIGN(KSUSY1+IA,I) | |
7812 | MINT(23-JS)=KSUSY1+22 | |
7813 | KCC=15+JS | |
7814 | KCS=ISIGN(1,MINT(14+JS)) | |
7815 | ||
7816 | ELSEIF(ISUB.EQ.247) THEN | |
7817 | C...qj + g -> ~qj_R + ~chi01 | |
7818 | IF(MINT(15).EQ.21) JS=2 | |
7819 | I=MINT(14+JS) | |
7820 | IA=IABS(I) | |
7821 | MINT(20+JS)=ISIGN(KSUSY2+IA,I) | |
7822 | MINT(23-JS)=KSUSY1+22 | |
7823 | KCC=15+JS | |
7824 | KCS=ISIGN(1,MINT(14+JS)) | |
7825 | ||
7826 | ELSEIF(ISUB.EQ.248) THEN | |
7827 | C...qj + g -> ~qj_L + ~chi02 | |
7828 | IF(MINT(15).EQ.21) JS=2 | |
7829 | I=MINT(14+JS) | |
7830 | IA=IABS(I) | |
7831 | MINT(20+JS)=ISIGN(KSUSY1+IA,I) | |
7832 | MINT(23-JS)=KSUSY1+23 | |
7833 | KCC=15+JS | |
7834 | KCS=ISIGN(1,MINT(14+JS)) | |
7835 | ||
7836 | ELSEIF(ISUB.EQ.249) THEN | |
7837 | C...qj + g -> ~qj_R + ~chi02 | |
7838 | IF(MINT(15).EQ.21) JS=2 | |
7839 | I=MINT(14+JS) | |
7840 | IA=IABS(I) | |
7841 | MINT(20+JS)=ISIGN(KSUSY2+IA,I) | |
7842 | MINT(23-JS)=KSUSY1+23 | |
7843 | KCC=15+JS | |
7844 | KCS=ISIGN(1,MINT(14+JS)) | |
7845 | ||
7846 | ELSEIF(ISUB.EQ.250) THEN | |
7847 | C...qj + g -> ~qj_L + ~chi03 | |
7848 | IF(MINT(15).EQ.21) JS=2 | |
7849 | I=MINT(14+JS) | |
7850 | IA=IABS(I) | |
7851 | MINT(20+JS)=ISIGN(KSUSY1+IA,I) | |
7852 | MINT(23-JS)=KSUSY1+25 | |
7853 | KCC=15+JS | |
7854 | KCS=ISIGN(1,MINT(14+JS)) | |
7855 | ||
7856 | ELSEIF(ISUB.EQ.251) THEN | |
7857 | C...qj + g -> ~qj_R + ~chi03 | |
7858 | IF(MINT(15).EQ.21) JS=2 | |
7859 | I=MINT(14+JS) | |
7860 | IA=IABS(I) | |
7861 | MINT(20+JS)=ISIGN(KSUSY2+IA,I) | |
7862 | MINT(23-JS)=KSUSY1+25 | |
7863 | KCC=15+JS | |
7864 | KCS=ISIGN(1,MINT(14+JS)) | |
7865 | ||
7866 | ELSEIF(ISUB.EQ.252) THEN | |
7867 | C...qj + g -> ~qj_L + ~chi04 | |
7868 | IF(MINT(15).EQ.21) JS=2 | |
7869 | I=MINT(14+JS) | |
7870 | IA=IABS(I) | |
7871 | MINT(20+JS)=ISIGN(KSUSY1+IA,I) | |
7872 | MINT(23-JS)=KSUSY1+35 | |
7873 | KCC=15+JS | |
7874 | KCS=ISIGN(1,MINT(14+JS)) | |
7875 | ||
7876 | ELSEIF(ISUB.EQ.253) THEN | |
7877 | C...qj + g -> ~qj_R + ~chi04 | |
7878 | IF(MINT(15).EQ.21) JS=2 | |
7879 | I=MINT(14+JS) | |
7880 | IA=IABS(I) | |
7881 | MINT(20+JS)=ISIGN(KSUSY2+IA,I) | |
7882 | MINT(23-JS)=KSUSY1+35 | |
7883 | KCC=15+JS | |
7884 | KCS=ISIGN(1,MINT(14+JS)) | |
7885 | ||
7886 | ELSEIF(ISUB.EQ.254) THEN | |
7887 | C...qj + g -> ~qk_L + ~chi+-1 | |
7888 | IF(MINT(15).EQ.21) JS=2 | |
7889 | I=MINT(14+JS) | |
7890 | IA=IABS(I) | |
7891 | MINT(23-JS)=ISIGN(KSUSY1+24,KCHG(IA,1)*I) | |
7892 | IB=-IA+INT((IA+1)/2)*4-1 | |
7893 | MINT(20+JS)=ISIGN(KSUSY1+IB,I) | |
7894 | KCC=15+JS | |
7895 | KCS=ISIGN(1,MINT(14+JS)) | |
7896 | ||
7897 | ELSEIF(ISUB.EQ.255) THEN | |
7898 | C...qj + g -> ~qk_L + ~chi+-1 | |
7899 | IF(MINT(15).EQ.21) JS=2 | |
7900 | I=MINT(14+JS) | |
7901 | IA=IABS(I) | |
7902 | MINT(23-JS)=ISIGN(KSUSY1+24,KCHG(IA,1)*I) | |
7903 | IB=-IA+INT((IA+1)/2)*4-1 | |
7904 | MINT(20+JS)=ISIGN(KSUSY2+IB,I) | |
7905 | KCC=15+JS | |
7906 | KCS=ISIGN(1,MINT(14+JS)) | |
7907 | ||
7908 | ELSEIF(ISUB.EQ.256) THEN | |
7909 | C...qj + g -> ~qk_L + ~chi+-2 | |
7910 | IF(MINT(15).EQ.21) JS=2 | |
7911 | I=MINT(14+JS) | |
7912 | IA=IABS(I) | |
7913 | IB=-IA+INT((IA+1)/2)*4-1 | |
7914 | MINT(20+JS)=ISIGN(KSUSY1+IB,I) | |
7915 | MINT(23-JS)=ISIGN(KSUSY1+37,KCHG(IA,1)*I) | |
7916 | KCC=15+JS | |
7917 | KCS=ISIGN(1,MINT(14+JS)) | |
7918 | ||
7919 | ELSEIF(ISUB.EQ.257) THEN | |
7920 | C...qj + g -> ~qk_R + ~chi+-2 | |
7921 | IF(MINT(15).EQ.21) JS=2 | |
7922 | I=MINT(14+JS) | |
7923 | IA=IABS(I) | |
7924 | IB=-IA+INT((IA+1)/2)*4-1 | |
7925 | MINT(20+JS)=ISIGN(KSUSY2+IB,I) | |
7926 | MINT(23-JS)=ISIGN(KSUSY1+37,KCHG(IA,1)*I) | |
7927 | KCC=15+JS | |
7928 | KCS=ISIGN(1,MINT(14+JS)) | |
7929 | ||
7930 | ELSEIF(ISUB.EQ.258) THEN | |
7931 | C...qj + g -> ~qj_L + ~g | |
7932 | IF(MINT(15).EQ.21) JS=2 | |
7933 | I=MINT(14+JS) | |
7934 | IA=IABS(I) | |
7935 | MINT(20+JS)=ISIGN(KSUSY1+IA,I) | |
7936 | MINT(23-JS)=KSUSY1+21 | |
7937 | KCC=MINT(2)+6 | |
7938 | IF(JS.EQ.2) KCC=KCC+2 | |
7939 | KCS=ISIGN(1,I) | |
7940 | ||
7941 | ELSEIF(ISUB.EQ.259) THEN | |
7942 | C...qj + g -> ~qj_R + ~g | |
7943 | IF(MINT(15).EQ.21) JS=2 | |
7944 | I=MINT(14+JS) | |
7945 | IA=IABS(I) | |
7946 | MINT(20+JS)=ISIGN(KSUSY2+IA,I) | |
7947 | MINT(23-JS)=KSUSY1+21 | |
7948 | KCC=MINT(2)+6 | |
7949 | IF(JS.EQ.2) KCC=KCC+2 | |
7950 | KCS=ISIGN(1,I) | |
7951 | ENDIF | |
7952 | ||
7953 | ELSEIF(ISUB.LE.270) THEN | |
7954 | IF(ISUB.EQ.261) THEN | |
7955 | C...f + fbar -> ~t_1 + ~t_1bar; th = (p(q)-p(sq))**2 | |
7956 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
7957 | MINT(22)=-MINT(21) | |
7958 | C...Correct color combination | |
7959 | IF(MINT(43).EQ.4) KCC=4 | |
7960 | ||
7961 | ELSEIF(ISUB.EQ.262) THEN | |
7962 | C...f + fbar -> ~t_2 + ~t_2bar; th = (p(q)-p(sq))**2 | |
7963 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
7964 | MINT(22)=-MINT(21) | |
7965 | C...Correct color combination | |
7966 | IF(MINT(43).EQ.4) KCC=4 | |
7967 | ||
7968 | ELSEIF(ISUB.EQ.263) THEN | |
7969 | C...f + fbar -> ~t_1 + ~t_2bar; th = (p(q)-p(sq))**2 | |
7970 | IF((KCS.GT.0.AND.MINT(2).EQ.1).OR. | |
7971 | & (KCS.LT.0.AND.MINT(2).EQ.2)) THEN | |
7972 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
7973 | MINT(22)=-ISIGN(KFPR(ISUB,2),KCS) | |
7974 | ELSE | |
7975 | JS=2 | |
7976 | MINT(21)=ISIGN(KFPR(ISUB,2),KCS) | |
7977 | MINT(22)=-ISIGN(KFPR(ISUB,1),KCS) | |
7978 | ENDIF | |
7979 | C...Correct color combination | |
7980 | IF(MINT(43).EQ.4) KCC=4 | |
7981 | ||
7982 | ELSEIF(ISUB.EQ.264) THEN | |
7983 | C...g + g -> ~t_1 + ~t_1bar; th arbitrary | |
7984 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7985 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
7986 | MINT(22)=-MINT(21) | |
7987 | KCC=MINT(2)+10 | |
7988 | ||
7989 | ELSEIF(ISUB.EQ.265) THEN | |
7990 | C...g + g -> ~t_2 + ~t_2bar; th arbitrary | |
7991 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
7992 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
7993 | MINT(22)=-MINT(21) | |
7994 | KCC=MINT(2)+10 | |
7995 | ENDIF | |
7996 | ||
7997 | ELSEIF(ISUB.LE.280) THEN | |
7998 | IF(ISUB.EQ.271) THEN | |
7999 | C...qi + qj -> ~qi_L + ~qj_L | |
8000 | KCC=MINT(2) | |
8001 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
8002 | MINT(21)=ISIGN(KSUSY1+IABS(MINT(15)),MINT(15)) | |
8003 | MINT(22)=ISIGN(KSUSY1+IABS(MINT(16)),MINT(16)) | |
8004 | ||
8005 | ELSEIF(ISUB.EQ.272) THEN | |
8006 | C...qi + qj -> ~qi_R + ~qj_R | |
8007 | KCC=MINT(2) | |
8008 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
8009 | MINT(21)=ISIGN(KSUSY2+IABS(MINT(15)),MINT(15)) | |
8010 | MINT(22)=ISIGN(KSUSY2+IABS(MINT(16)),MINT(16)) | |
8011 | ||
8012 | ELSEIF(ISUB.EQ.273) THEN | |
8013 | C...qi + qj -> ~qi_L + ~qj_R | |
8014 | MINT(21)=ISIGN(KFPR(ISUB,1),MINT(15)) | |
8015 | MINT(22)=ISIGN(KFPR(ISUB,2),MINT(16)) | |
8016 | KCC=MINT(2) | |
8017 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
8018 | ||
8019 | ELSEIF(ISUB.EQ.274) THEN | |
8020 | C...qi + qjbar -> ~qi_L + ~qj_Lbar; th = (p(f)-p(sf'))**2 | |
8021 | MINT(21)=ISIGN(KSUSY1+IABS(MINT(15)),MINT(15)) | |
8022 | MINT(22)=ISIGN(KSUSY1+IABS(MINT(16)),MINT(16)) | |
8023 | KCC=MINT(2) | |
8024 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
8025 | ||
8026 | ELSEIF(ISUB.EQ.275) THEN | |
8027 | C...qi + qjbar -> ~qi_R + ~qj_Rbar ; th = (p(f)-p(sf'))**2 | |
8028 | MINT(21)=ISIGN(KSUSY2+IABS(MINT(15)),MINT(15)) | |
8029 | MINT(22)=ISIGN(KSUSY2+IABS(MINT(16)),MINT(16)) | |
8030 | KCC=MINT(2) | |
8031 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
8032 | ||
8033 | ELSEIF(ISUB.EQ.276) THEN | |
8034 | C...qi + qjbar -> ~qi_L + ~qj_Rbar ; th = (p(f)-p(sf'))**2 | |
8035 | MINT(21)=ISIGN(KFPR(ISUB,1),MINT(15)) | |
8036 | MINT(22)=ISIGN(KFPR(ISUB,2),MINT(16)) | |
8037 | KCC=MINT(2) | |
8038 | IF(MINT(15)*MINT(16).LT.0) KCC=KCC+2 | |
8039 | ||
8040 | ELSEIF(ISUB.EQ.277) THEN | |
8041 | C...f + fbar -> ~qi_L + ~qi_Lbar ; th = (p(q)-p(sq))**2 | |
8042 | ISGN=1 | |
8043 | IF(MINT(43).EQ.1.AND.PYR(0).GT.0.5D0) ISGN=-1 | |
8044 | MINT(21)=ISGN*ISIGN(KFPR(ISUB,1),KCS) | |
8045 | MINT(22)=-MINT(21) | |
8046 | IF(MINT(43).EQ.4) KCC=4 | |
8047 | ||
8048 | ELSEIF(ISUB.EQ.278) THEN | |
8049 | C...f + fbar -> ~qi_R + ~qi_Rbar; th = (p(q)-p(sq))**2 | |
8050 | ISGN=1 | |
8051 | IF(MINT(43).EQ.1.AND.PYR(0).GT.0.5D0) ISGN=-1 | |
8052 | MINT(21)=ISGN*ISIGN(KFPR(ISUB,1),KCS) | |
8053 | MINT(22)=-MINT(21) | |
8054 | IF(MINT(43).EQ.4) KCC=4 | |
8055 | ||
8056 | ELSEIF(ISUB.EQ.279) THEN | |
8057 | C...g + g -> ~qi_L + ~qi_Lbar ; th arbitrary | |
8058 | C...pure LL + RR | |
8059 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
8060 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
8061 | MINT(22)=-MINT(21) | |
8062 | KCC=MINT(2)+10 | |
8063 | ||
8064 | ELSEIF(ISUB.EQ.280) THEN | |
8065 | C...g + g -> ~qi_R + ~qi_Rbar ; th arbitrary | |
8066 | KCS=(-1)**INT(1.5D0+PYR(0)) | |
8067 | MINT(21)=ISIGN(KFPR(ISUB,1),KCS) | |
8068 | MINT(22)=-MINT(21) | |
8069 | KCC=MINT(2)+10 | |
8070 | ENDIF | |
8071 | ||
8072 | CMRENNA-- | |
8073 | ENDIF | |
8074 | ||
8075 | IF(ISET(ISUB).EQ.11) THEN | |
8076 | C...Store documentation for user-defined processes | |
8077 | BEZUP=(PUP(1,4)-PUP(2,4))/(PUP(1,4)+PUP(2,4)) | |
8078 | KUPPO(1)=MINT(83)+5 | |
8079 | KUPPO(2)=MINT(83)+6 | |
8080 | I=MINT(83)+6 | |
8081 | DO 450 IUP=3,NUP | |
8082 | KUPPO(IUP)=0 | |
8083 | IF(MSTP(128).GE.2.AND.KUP(IUP,3).NE.0) THEN | |
8084 | IDOC=IDOC-1 | |
8085 | MINT(4)=MINT(4)-1 | |
8086 | GOTO 450 | |
8087 | ENDIF | |
8088 | I=I+1 | |
8089 | KUPPO(IUP)=I | |
8090 | K(I,1)=21 | |
8091 | K(I,2)=KUP(IUP,2) | |
8092 | K(I,3)=0 | |
8093 | IF(KUP(IUP,3).NE.0) K(I,3)=KUPPO(KUP(IUP,3)) | |
8094 | K(I,4)=0 | |
8095 | K(I,5)=0 | |
8096 | DO 440 J=1,5 | |
8097 | P(I,J)=PUP(IUP,J) | |
8098 | 440 CONTINUE | |
8099 | 450 CONTINUE | |
8100 | CALL PYROBO(MINT(83)+7,MINT(83)+4+NUP,0D0,VINT(24),0D0,0D0, | |
8101 | & -BEZUP) | |
8102 | ||
8103 | C...Store final state partons for user-defined processes | |
8104 | N=IPU2 | |
8105 | DO 470 IUP=3,NUP | |
8106 | N=N+1 | |
8107 | K(N,1)=1 | |
8108 | IF(KUP(IUP,1).NE.1) K(N,1)=11 | |
8109 | K(N,2)=KUP(IUP,2) | |
8110 | IF(MSTP(128).LE.0.OR.KUP(IUP,3).EQ.0) THEN | |
8111 | K(N,3)=KUPPO(IUP) | |
8112 | ELSE | |
8113 | K(N,3)=MINT(84)+KUP(IUP,3) | |
8114 | ENDIF | |
8115 | K(N,4)=0 | |
8116 | K(N,5)=0 | |
8117 | DO 460 J=1,5 | |
8118 | P(N,J)=PUP(IUP,J) | |
8119 | 460 CONTINUE | |
8120 | 470 CONTINUE | |
8121 | CALL PYROBO(IPU3,N,0D0,VINT(24),0D0,0D0,-BEZUP) | |
8122 | ||
8123 | C...Arrange colour flow for user-defined processes | |
8124 | N=MINT(84) | |
8125 | DO 480 IUP=1,NUP | |
8126 | N=N+1 | |
8127 | IF(KCHG(PYCOMP(K(N,2)),2).EQ.0) GOTO 480 | |
8128 | IF(K(N,1).EQ.1) K(N,1)=3 | |
8129 | IF(K(N,1).EQ.11) K(N,1)=14 | |
8130 | IF(KUP(IUP,4).NE.0) K(N,4)=K(N,4)+MSTU(5)*(KUP(IUP,4)+ | |
8131 | & MINT(84)) | |
8132 | IF(KUP(IUP,5).NE.0) K(N,5)=K(N,5)+MSTU(5)*(KUP(IUP,5)+ | |
8133 | & MINT(84)) | |
8134 | IF(KUP(IUP,6).NE.0) K(N,4)=K(N,4)+KUP(IUP,6)+MINT(84) | |
8135 | IF(KUP(IUP,7).NE.0) K(N,5)=K(N,5)+KUP(IUP,7)+MINT(84) | |
8136 | 480 CONTINUE | |
8137 | ||
8138 | ELSEIF(IDOC.EQ.7) THEN | |
8139 | C...Resonance not decaying; store kinematics | |
8140 | I=MINT(83)+7 | |
8141 | K(IPU3,1)=1 | |
8142 | K(IPU3,2)=KFRES | |
8143 | K(IPU3,3)=I | |
8144 | P(IPU3,4)=SHUSER | |
8145 | P(IPU3,5)=SHUSER | |
8146 | K(I,1)=21 | |
8147 | K(I,2)=KFRES | |
8148 | P(I,4)=SHUSER | |
8149 | P(I,5)=SHUSER | |
8150 | N=IPU3 | |
8151 | MINT(21)=KFRES | |
8152 | MINT(22)=0 | |
8153 | ||
8154 | C...Special cases: colour flow in coloured resonances | |
8155 | KCRES=PYCOMP(KFRES) | |
8156 | IF(KCHG(KCRES,2).NE.0) THEN | |
8157 | K(IPU3,1)=3 | |
8158 | DO 490 J=1,2 | |
8159 | JC=J | |
8160 | IF(KCS.EQ.-1) JC=3-J | |
8161 | IF(ICOL(KCC,1,JC).NE.0.AND.K(IPU1,1).EQ.14) K(IPU1,J+3)= | |
8162 | & MINT(84)+ICOL(KCC,1,JC) | |
8163 | IF(ICOL(KCC,2,JC).NE.0.AND.K(IPU2,1).EQ.14) K(IPU2,J+3)= | |
8164 | & MINT(84)+ICOL(KCC,2,JC) | |
8165 | IF(ICOL(KCC,3,JC).NE.0.AND.K(IPU3,1).EQ.3) K(IPU3,J+3)= | |
8166 | & MSTU(5)*(MINT(84)+ICOL(KCC,3,JC)) | |
8167 | 490 CONTINUE | |
8168 | ELSE | |
8169 | K(IPU1,4)=IPU2 | |
8170 | K(IPU1,5)=IPU2 | |
8171 | K(IPU2,4)=IPU1 | |
8172 | K(IPU2,5)=IPU1 | |
8173 | ENDIF | |
8174 | ||
8175 | ELSEIF(IDOC.EQ.8) THEN | |
8176 | C...2 -> 2 processes: store outgoing partons in their CM-frame | |
8177 | DO 500 JT=1,2 | |
8178 | I=MINT(84)+2+JT | |
8179 | KCA=PYCOMP(MINT(20+JT)) | |
8180 | K(I,1)=1 | |
8181 | IF(KCHG(KCA,2).NE.0) K(I,1)=3 | |
8182 | K(I,2)=MINT(20+JT) | |
8183 | K(I,3)=MINT(83)+IDOC+JT-2 | |
8184 | KFAA=IABS(K(I,2)) | |
8185 | IF(MWID(KCA).NE.0.AND.KFPR(ISUBSV,1).NE.0) THEN | |
8186 | P(I,5)=SQRT(VINT(63+MOD(JS+JT,2))) | |
8187 | ELSEIF(MWID(KCA).NE.0.AND.KFPR(ISUBSV,2).NE.0) THEN | |
8188 | P(I,5)=SQRT(VINT(64)) | |
8189 | ELSE | |
8190 | P(I,5)=PYMASS(K(I,2)) | |
8191 | ENDIF | |
8192 | IF((KFAA.EQ.6.OR.KFAA.EQ.7.OR.KFAA.EQ.8).AND. | |
8193 | & P(I,5).LT.PARP(42)) P(I,5)=PYMASS(K(I,2)) | |
8194 | 500 CONTINUE | |
8195 | IF(P(IPU3,5)+P(IPU4,5).GE.SHR) THEN | |
8196 | KFA1=IABS(MINT(21)) | |
8197 | KFA2=IABS(MINT(22)) | |
8198 | IF((KFA1.GT.3.AND.KFA1.NE.21).OR.(KFA2.GT.3.AND.KFA2.NE.21)) | |
8199 | & THEN | |
8200 | MINT(51)=1 | |
8201 | RETURN | |
8202 | ENDIF | |
8203 | P(IPU3,5)=0D0 | |
8204 | P(IPU4,5)=0D0 | |
8205 | ENDIF | |
8206 | P(IPU3,4)=0.5D0*(SHR+(P(IPU3,5)**2-P(IPU4,5)**2)/SHR) | |
8207 | P(IPU3,3)=SQRT(MAX(0D0,P(IPU3,4)**2-P(IPU3,5)**2)) | |
8208 | P(IPU4,4)=SHR-P(IPU3,4) | |
8209 | P(IPU4,3)=-P(IPU3,3) | |
8210 | N=IPU4 | |
8211 | MINT(7)=MINT(83)+7 | |
8212 | MINT(8)=MINT(83)+8 | |
8213 | ||
8214 | C...Rotate outgoing partons using cos(theta)=(th-uh)/lam(sh,sqm3,sqm4) | |
8215 | CALL PYROBO(IPU3,IPU4,ACOS(VINT(23)),VINT(24),0D0,0D0,0D0) | |
8216 | ||
8217 | ELSEIF(IDOC.EQ.9) THEN | |
8218 | C...2 -> 3 processes: store outgoing partons in their CM frame | |
8219 | DO 510 JT=1,2 | |
8220 | I=MINT(84)+2+JT | |
8221 | KCA=PYCOMP(MINT(20+JT)) | |
8222 | K(I,1)=1 | |
8223 | IF(KCHG(KCA,2).NE.0) K(I,1)=3 | |
8224 | K(I,2)=MINT(20+JT) | |
8225 | K(I,3)=MINT(83)+IDOC+JT-3 | |
8226 | IF(IABS(K(I,2)).LE.22) THEN | |
8227 | P(I,5)=PYMASS(K(I,2)) | |
8228 | ELSE | |
8229 | P(I,5)=SQRT(VINT(63+MOD(JS+JT,2))) | |
8230 | ENDIF | |
8231 | PT=SQRT(MAX(0D0,VINT(197+5*JT)-P(I,5)**2+VINT(196+5*JT)**2)) | |
8232 | P(I,1)=PT*COS(VINT(198+5*JT)) | |
8233 | P(I,2)=PT*SIN(VINT(198+5*JT)) | |
8234 | 510 CONTINUE | |
8235 | K(IPU5,1)=1 | |
8236 | K(IPU5,2)=KFRES | |
8237 | K(IPU5,3)=MINT(83)+IDOC | |
8238 | P(IPU5,5)=SHR | |
8239 | P(IPU5,1)=-P(IPU3,1)-P(IPU4,1) | |
8240 | P(IPU5,2)=-P(IPU3,2)-P(IPU4,2) | |
8241 | PMS1=P(IPU3,5)**2+P(IPU3,1)**2+P(IPU3,2)**2 | |
8242 | PMS2=P(IPU4,5)**2+P(IPU4,1)**2+P(IPU4,2)**2 | |
8243 | PMS3=P(IPU5,5)**2+P(IPU5,1)**2+P(IPU5,2)**2 | |
8244 | PMT3=SQRT(PMS3) | |
8245 | P(IPU5,3)=PMT3*SINH(VINT(211)) | |
8246 | P(IPU5,4)=PMT3*COSH(VINT(211)) | |
8247 | PMS12=(SHPR-P(IPU5,4))**2-P(IPU5,3)**2 | |
8248 | SQL12=(PMS12-PMS1-PMS2)**2-4D0*PMS1*PMS2 | |
8249 | IF(SQL12.LE.0D0) THEN | |
8250 | MINT(51)=1 | |
8251 | RETURN | |
8252 | ENDIF | |
8253 | P(IPU3,3)=(-P(IPU5,3)*(PMS12+PMS1-PMS2)+ | |
8254 | & VINT(213)*(SHPR-P(IPU5,4))*SQRT(SQL12))/(2D0*PMS12) | |
8255 | P(IPU4,3)=-P(IPU3,3)-P(IPU5,3) | |
8256 | P(IPU3,4)=SQRT(PMS1+P(IPU3,3)**2) | |
8257 | P(IPU4,4)=SQRT(PMS2+P(IPU4,3)**2) | |
8258 | MINT(23)=KFRES | |
8259 | N=IPU5 | |
8260 | MINT(7)=MINT(83)+7 | |
8261 | MINT(8)=MINT(83)+8 | |
8262 | ||
8263 | ELSEIF(IDOC.EQ.11) THEN | |
8264 | C...Z0 + Z0 -> h0, W+ + W- -> h0: store Higgs and outgoing partons | |
8265 | PHI(1)=PARU(2)*PYR(0) | |
8266 | PHI(2)=PHI(1)-PHIR | |
8267 | DO 520 JT=1,2 | |
8268 | I=MINT(84)+2+JT | |
8269 | K(I,1)=1 | |
8270 | IF(KCHG(PYCOMP(MINT(20+JT)),2).NE.0) K(I,1)=3 | |
8271 | K(I,2)=MINT(20+JT) | |
8272 | K(I,3)=MINT(83)+IDOC+JT-2 | |
8273 | P(I,5)=PYMASS(K(I,2)) | |
8274 | IF(0.5D0*SHPR*Z(JT).LE.P(I,5)) THEN | |
8275 | MINT(51)=1 | |
8276 | RETURN | |
8277 | ENDIF | |
8278 | PABS=SQRT(MAX(0D0,(0.5D0*SHPR*Z(JT))**2-P(I,5)**2)) | |
8279 | PTABS=PABS*SQRT(MAX(0D0,1D0-CTHE(JT)**2)) | |
8280 | P(I,1)=PTABS*COS(PHI(JT)) | |
8281 | P(I,2)=PTABS*SIN(PHI(JT)) | |
8282 | P(I,3)=PABS*CTHE(JT)*(-1)**(JT+1) | |
8283 | P(I,4)=0.5D0*SHPR*Z(JT) | |
8284 | IZW=MINT(83)+6+JT | |
8285 | K(IZW,1)=21 | |
8286 | K(IZW,2)=23 | |
8287 | IF(ISUB.EQ.8) K(IZW,2)=ISIGN(24,PYCHGE(MINT(14+JT))) | |
8288 | K(IZW,3)=IZW-2 | |
8289 | P(IZW,1)=-P(I,1) | |
8290 | P(IZW,2)=-P(I,2) | |
8291 | P(IZW,3)=(0.5D0*SHPR-PABS*CTHE(JT))*(-1)**(JT+1) | |
8292 | P(IZW,4)=0.5D0*SHPR*(1D0-Z(JT)) | |
8293 | P(IZW,5)=-SQRT(MAX(0D0,P(IZW,3)**2+PTABS**2-P(IZW,4)**2)) | |
8294 | 520 CONTINUE | |
8295 | I=MINT(83)+9 | |
8296 | K(IPU5,1)=1 | |
8297 | K(IPU5,2)=KFRES | |
8298 | K(IPU5,3)=I | |
8299 | P(IPU5,5)=SHR | |
8300 | P(IPU5,1)=-P(IPU3,1)-P(IPU4,1) | |
8301 | P(IPU5,2)=-P(IPU3,2)-P(IPU4,2) | |
8302 | P(IPU5,3)=-P(IPU3,3)-P(IPU4,3) | |
8303 | P(IPU5,4)=SHPR-P(IPU3,4)-P(IPU4,4) | |
8304 | K(I,1)=21 | |
8305 | K(I,2)=KFRES | |
8306 | DO 530 J=1,5 | |
8307 | P(I,J)=P(IPU5,J) | |
8308 | 530 CONTINUE | |
8309 | N=IPU5 | |
8310 | MINT(23)=KFRES | |
8311 | ||
8312 | ELSEIF(IDOC.EQ.12) THEN | |
8313 | C...Z0 and W+/- scattering: store bosons and outgoing partons | |
8314 | PHI(1)=PARU(2)*PYR(0) | |
8315 | PHI(2)=PHI(1)-PHIR | |
8316 | JTRAN=INT(1.5D0+PYR(0)) | |
8317 | DO 540 JT=1,2 | |
8318 | I=MINT(84)+2+JT | |
8319 | K(I,1)=1 | |
8320 | IF(KCHG(PYCOMP(MINT(20+JT)),2).NE.0) K(I,1)=3 | |
8321 | K(I,2)=MINT(20+JT) | |
8322 | K(I,3)=MINT(83)+IDOC+JT-2 | |
8323 | P(I,5)=PYMASS(K(I,2)) | |
8324 | IF(0.5D0*SHPR*Z(JT).LE.P(I,5)) P(I,5)=0D0 | |
8325 | PABS=SQRT(MAX(0D0,(0.5D0*SHPR*Z(JT))**2-P(I,5)**2)) | |
8326 | PTABS=PABS*SQRT(MAX(0D0,1D0-CTHE(JT)**2)) | |
8327 | P(I,1)=PTABS*COS(PHI(JT)) | |
8328 | P(I,2)=PTABS*SIN(PHI(JT)) | |
8329 | P(I,3)=PABS*CTHE(JT)*(-1)**(JT+1) | |
8330 | P(I,4)=0.5D0*SHPR*Z(JT) | |
8331 | IZW=MINT(83)+6+JT | |
8332 | K(IZW,1)=21 | |
8333 | IF(MINT(14+JT).EQ.MINT(20+JT)) THEN | |
8334 | K(IZW,2)=23 | |
8335 | ELSE | |
8336 | K(IZW,2)=ISIGN(24,PYCHGE(MINT(14+JT))-PYCHGE(MINT(20+JT))) | |
8337 | ENDIF | |
8338 | K(IZW,3)=IZW-2 | |
8339 | P(IZW,1)=-P(I,1) | |
8340 | P(IZW,2)=-P(I,2) | |
8341 | P(IZW,3)=(0.5D0*SHPR-PABS*CTHE(JT))*(-1)**(JT+1) | |
8342 | P(IZW,4)=0.5D0*SHPR*(1D0-Z(JT)) | |
8343 | P(IZW,5)=-SQRT(MAX(0D0,P(IZW,3)**2+PTABS**2-P(IZW,4)**2)) | |
8344 | IPU=MINT(84)+4+JT | |
8345 | K(IPU,1)=3 | |
8346 | K(IPU,2)=KFPR(ISUB,JT) | |
8347 | IF(ISUB.EQ.72.AND.JT.EQ.JTRAN) K(IPU,2)=-K(IPU,2) | |
8348 | IF(ISUB.EQ.73.OR.ISUB.EQ.77) K(IPU,2)=K(IZW,2) | |
8349 | K(IPU,3)=MINT(83)+8+JT | |
8350 | IF(IABS(K(IPU,2)).LE.10.OR.K(IPU,2).EQ.21) THEN | |
8351 | P(IPU,5)=PYMASS(K(IPU,2)) | |
8352 | ELSE | |
8353 | P(IPU,5)=SQRT(VINT(63+MOD(JS+JT,2))) | |
8354 | ENDIF | |
8355 | MINT(22+JT)=K(IPU,2) | |
8356 | 540 CONTINUE | |
8357 | C...Find rotation and boost for hard scattering subsystem | |
8358 | I1=MINT(83)+7 | |
8359 | I2=MINT(83)+8 | |
8360 | BEXCM=(P(I1,1)+P(I2,1))/(P(I1,4)+P(I2,4)) | |
8361 | BEYCM=(P(I1,2)+P(I2,2))/(P(I1,4)+P(I2,4)) | |
8362 | BEZCM=(P(I1,3)+P(I2,3))/(P(I1,4)+P(I2,4)) | |
8363 | GAMCM=(P(I1,4)+P(I2,4))/SHR | |
8364 | BEPCM=BEXCM*P(I1,1)+BEYCM*P(I1,2)+BEZCM*P(I1,3) | |
8365 | PX=P(I1,1)+GAMCM*(GAMCM/(1D0+GAMCM)*BEPCM-P(I1,4))*BEXCM | |
8366 | PY=P(I1,2)+GAMCM*(GAMCM/(1D0+GAMCM)*BEPCM-P(I1,4))*BEYCM | |
8367 | PZ=P(I1,3)+GAMCM*(GAMCM/(1D0+GAMCM)*BEPCM-P(I1,4))*BEZCM | |
8368 | THECM=PYANGL(PZ,SQRT(PX**2+PY**2)) | |
8369 | PHICM=PYANGL(PX,PY) | |
8370 | C...Store hard scattering subsystem. Rotate and boost it | |
8371 | SQLAM=(SH-P(IPU5,5)**2-P(IPU6,5)**2)**2-4D0*P(IPU5,5)**2* | |
8372 | & P(IPU6,5)**2 | |
8373 | PABS=SQRT(MAX(0D0,SQLAM/(4D0*SH))) | |
8374 | CTHWZ=VINT(23) | |
8375 | STHWZ=SQRT(MAX(0D0,1D0-CTHWZ**2)) | |
8376 | PHIWZ=VINT(24)-PHICM | |
8377 | P(IPU5,1)=PABS*STHWZ*COS(PHIWZ) | |
8378 | P(IPU5,2)=PABS*STHWZ*SIN(PHIWZ) | |
8379 | P(IPU5,3)=PABS*CTHWZ | |
8380 | P(IPU5,4)=SQRT(PABS**2+P(IPU5,5)**2) | |
8381 | P(IPU6,1)=-P(IPU5,1) | |
8382 | P(IPU6,2)=-P(IPU5,2) | |
8383 | P(IPU6,3)=-P(IPU5,3) | |
8384 | P(IPU6,4)=SQRT(PABS**2+P(IPU6,5)**2) | |
8385 | CALL PYROBO(IPU5,IPU6,THECM,PHICM,BEXCM,BEYCM,BEZCM) | |
8386 | DO 560 JT=1,2 | |
8387 | I1=MINT(83)+8+JT | |
8388 | I2=MINT(84)+4+JT | |
8389 | K(I1,1)=21 | |
8390 | K(I1,2)=K(I2,2) | |
8391 | DO 550 J=1,5 | |
8392 | P(I1,J)=P(I2,J) | |
8393 | 550 CONTINUE | |
8394 | 560 CONTINUE | |
8395 | N=IPU6 | |
8396 | MINT(7)=MINT(83)+9 | |
8397 | MINT(8)=MINT(83)+10 | |
8398 | ENDIF | |
8399 | ||
8400 | IF(ISET(ISUB).EQ.11) THEN | |
8401 | ELSEIF(IDOC.GE.8) THEN | |
8402 | C...Store colour connection indices | |
8403 | DO 570 J=1,2 | |
8404 | JC=J | |
8405 | IF(KCS.EQ.-1) JC=3-J | |
8406 | IF(ICOL(KCC,1,JC).NE.0.AND.K(IPU1,1).EQ.14) K(IPU1,J+3)= | |
8407 | & K(IPU1,J+3)+MINT(84)+ICOL(KCC,1,JC) | |
8408 | IF(ICOL(KCC,2,JC).NE.0.AND.K(IPU2,1).EQ.14) K(IPU2,J+3)= | |
8409 | & K(IPU2,J+3)+MINT(84)+ICOL(KCC,2,JC) | |
8410 | IF(ICOL(KCC,3,JC).NE.0.AND.K(IPU3,1).EQ.3) K(IPU3,J+3)= | |
8411 | & MSTU(5)*(MINT(84)+ICOL(KCC,3,JC)) | |
8412 | IF(ICOL(KCC,4,JC).NE.0.AND.K(IPU4,1).EQ.3) K(IPU4,J+3)= | |
8413 | & MSTU(5)*(MINT(84)+ICOL(KCC,4,JC)) | |
8414 | 570 CONTINUE | |
8415 | ||
8416 | C...Copy outgoing partons to documentation lines | |
8417 | IMAX=2 | |
8418 | IF(IDOC.EQ.9) IMAX=3 | |
8419 | DO 590 I=1,IMAX | |
8420 | I1=MINT(83)+IDOC-IMAX+I | |
8421 | I2=MINT(84)+2+I | |
8422 | K(I1,1)=21 | |
8423 | K(I1,2)=K(I2,2) | |
8424 | IF(IDOC.LE.9) K(I1,3)=0 | |
8425 | IF(IDOC.GE.11) K(I1,3)=MINT(83)+2+I | |
8426 | DO 580 J=1,5 | |
8427 | P(I1,J)=P(I2,J) | |
8428 | 580 CONTINUE | |
8429 | 590 CONTINUE | |
8430 | ||
8431 | ELSEIF(IDOC.EQ.9) THEN | |
8432 | C...Store colour connection indices | |
8433 | DO 600 J=1,2 | |
8434 | JC=J | |
8435 | IF(KCS.EQ.-1) JC=3-J | |
8436 | IF(ICOL(KCC,1,JC).NE.0.AND.K(IPU1,1).EQ.14) K(IPU1,J+3)= | |
8437 | & K(IPU1,J+3)+MINT(84)+ICOL(KCC,1,JC)+ | |
8438 | & MAX(0,MIN(1,ICOL(KCC,1,JC)-2)) | |
8439 | IF(ICOL(KCC,2,JC).NE.0.AND.K(IPU2,1).EQ.14) K(IPU2,J+3)= | |
8440 | & K(IPU2,J+3)+MINT(84)+ICOL(KCC,2,JC)+ | |
8441 | & MAX(0,MIN(1,ICOL(KCC,2,JC)-2)) | |
8442 | IF(ICOL(KCC,3,JC).NE.0.AND.K(IPU4,1).EQ.3) K(IPU4,J+3)= | |
8443 | & MSTU(5)*(MINT(84)+ICOL(KCC,3,JC)) | |
8444 | IF(ICOL(KCC,4,JC).NE.0.AND.K(IPU5,1).EQ.3) K(IPU5,J+3)= | |
8445 | & MSTU(5)*(MINT(84)+ICOL(KCC,4,JC)) | |
8446 | 600 CONTINUE | |
8447 | ||
8448 | C...Copy outgoing partons to documentation lines | |
8449 | DO 620 I=1,3 | |
8450 | I1=MINT(83)+IDOC-3+I | |
8451 | I2=MINT(84)+2+I | |
8452 | K(I1,1)=21 | |
8453 | K(I1,2)=K(I2,2) | |
8454 | K(I1,3)=0 | |
8455 | DO 610 J=1,5 | |
8456 | P(I1,J)=P(I2,J) | |
8457 | 610 CONTINUE | |
8458 | 620 CONTINUE | |
8459 | ENDIF | |
8460 | ||
8461 | C...Low-pT events: remove gluons used for string drawing purposes | |
8462 | IF(ISUB.EQ.95) THEN | |
8463 | K(IPU3,1)=K(IPU3,1)+10 | |
8464 | K(IPU4,1)=K(IPU4,1)+10 | |
8465 | DO 630 J=41,66 | |
8466 | VINTSV(J)=VINT(J) | |
8467 | VINT(J)=0D0 | |
8468 | 630 CONTINUE | |
8469 | DO 650 I=MINT(83)+5,MINT(83)+8 | |
8470 | DO 640 J=1,5 | |
8471 | P(I,J)=0D0 | |
8472 | 640 CONTINUE | |
8473 | 650 CONTINUE | |
8474 | ENDIF | |
8475 | ||
8476 | RETURN | |
8477 | END | |
8478 | ||
8479 | C********************************************************************* | |
8480 | ||
8481 | C...PYSSPA | |
8482 | C...Generates spacelike parton showers. | |
8483 | ||
8484 | SUBROUTINE PYSSPA(IPU1,IPU2) | |
8485 | ||
8486 | C...Double precision and integer declarations. | |
8487 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
8488 | INTEGER PYK,PYCHGE,PYCOMP | |
8489 | C...Commonblocks. | |
8490 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
8491 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
8492 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
8493 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
8494 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
8495 | COMMON/PYINT1/MINT(400),VINT(400) | |
8496 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
8497 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
8498 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
8499 | &/PYINT2/,/PYINT3/ | |
8500 | C...Local arrays and data. | |
8501 | DIMENSION KFLS(4),IS(2),XS(2),ZS(2),Q2S(2),TEVCSV(2),TEVESV(2), | |
8502 | &XFS(2,-25:25),XFA(-25:25),XFB(-25:25),XFN(-25:25),WTAPC(-25:25), | |
8503 | &WTAPE(-25:25),WTSF(-25:25),THE2(2),ALAM(2),DQ2(3),DPC(3),DPD(4), | |
8504 | &DPB(4),ROBO(5),MORE(2),KFBEAM(2),Q2MNCS(2),KCFI(2),NFIS(2), | |
8505 | &THEFIS(2,2),ISFI(2) | |
8506 | DATA IS/2*0/ | |
8507 | ||
8508 | C...Read out basic information; set global Q^2 scale. | |
8509 | IPUS1=IPU1 | |
8510 | IPUS2=IPU2 | |
8511 | ISUB=MINT(1) | |
8512 | Q2MX=VINT(56) | |
8513 | IF(ISET(ISUB).EQ.2) Q2MX=PARP(67)*VINT(56) | |
8514 | ||
8515 | C...Initialize QCD evolution and check phase space. | |
8516 | Q2MNC=PARP(62)**2 | |
8517 | Q2MNCS(1)=Q2MNC | |
8518 | IF(MSTP(66).EQ.1.AND.MINT(107).EQ.3) | |
8519 | &Q2MNCS(1)=MAX(Q2MNC,VINT(283)) | |
8520 | Q2MNCS(2)=Q2MNC | |
8521 | IF(MSTP(66).EQ.1.AND.MINT(108).EQ.3) | |
8522 | &Q2MNCS(2)=MAX(Q2MNC,VINT(284)) | |
8523 | MCEV=0 | |
8524 | XEC0=2D0*PARP(65)/VINT(1) | |
8525 | ALAMS=PARU(112) | |
8526 | PARU(112)=PARP(61) | |
8527 | FQ2C=1D0 | |
8528 | TCMX=0D0 | |
8529 | IF(MINT(47).GE.2.AND.(MINT(47).NE.5.OR.MSTP(12).GE.1)) THEN | |
8530 | MCEV=1 | |
8531 | IF(MSTP(64).EQ.1) FQ2C=PARP(63) | |
8532 | IF(MSTP(64).EQ.2) FQ2C=PARP(64) | |
8533 | TCMX=LOG(FQ2C*Q2MX/PARP(61)**2) | |
8534 | IF(Q2MX.LT.MAX(Q2MNC,2D0*PARP(61)**2).OR.TCMX.LT.0.2D0) | |
8535 | & MCEV=0 | |
8536 | ENDIF | |
8537 | ||
8538 | C...Initialize QED evolution and check phase space. | |
8539 | Q2MNE=PARP(68)**2 | |
8540 | MEEV=0 | |
8541 | XEE=1D-6 | |
8542 | SPME=PMAS(11,1)**2 | |
8543 | TEMX=0D0 | |
8544 | FWTE=10D0 | |
8545 | IF(MINT(45).EQ.3.OR.MINT(46).EQ.3) THEN | |
8546 | MEEV=1 | |
8547 | TEMX=LOG(Q2MX/SPME) | |
8548 | IF(Q2MX.LE.Q2MNE.OR.TEMX.LT.0.2D0) MEEV=0 | |
8549 | ENDIF | |
8550 | IF(MCEV.EQ.0.AND.MEEV.EQ.0) RETURN | |
8551 | ||
8552 | C...Initial values: flavours, momenta, virtualities. | |
8553 | NS=N | |
8554 | 100 N=NS | |
8555 | DO 120 JT=1,2 | |
8556 | MORE(JT)=1 | |
8557 | KFBEAM(JT)=MINT(10+JT) | |
8558 | IF(MINT(18+JT).EQ.1)KFBEAM(JT)=22 | |
8559 | KFLS(JT)=MINT(14+JT) | |
8560 | KFLS(JT+2)=KFLS(JT) | |
8561 | XS(JT)=VINT(40+JT) | |
8562 | IF(MINT(18+JT).EQ.1) XS(JT)=VINT(40+JT)/VINT(154+JT) | |
8563 | ZS(JT)=1D0 | |
8564 | Q2S(JT)=Q2MX | |
8565 | TEVCSV(JT)=TCMX | |
8566 | ALAM(JT)=PARP(61) | |
8567 | THE2(JT)=100D0 | |
8568 | TEVESV(JT)=TEMX | |
8569 | DO 110 KFL=-25,25 | |
8570 | XFS(JT,KFL)=XSFX(JT,KFL) | |
8571 | 110 CONTINUE | |
8572 | 120 CONTINUE | |
8573 | DSH=VINT(44) | |
8574 | IF(ISET(ISUB).GE.3.AND.ISET(ISUB).LE.5) DSH=VINT(26)*VINT(2) | |
8575 | ||
8576 | C...Find if interference with final state partons. | |
8577 | MFIS=0 | |
8578 | IF(MSTP(67).GE.1.AND.MSTP(67).LE.3) MFIS=MSTP(67) | |
8579 | IF(MFIS.NE.0) THEN | |
8580 | DO 140 I=1,2 | |
8581 | KCFI(I)=0 | |
8582 | KCA=PYCOMP(IABS(KFLS(I))) | |
8583 | IF(KCA.NE.0) KCFI(I)=KCHG(KCA,2)*ISIGN(1,KFLS(I)) | |
8584 | NFIS(I)=0 | |
8585 | IF(KCFI(I).NE.0) THEN | |
8586 | IF(I.EQ.1) IPFS=IPUS1 | |
8587 | IF(I.EQ.2) IPFS=IPUS2 | |
8588 | DO 130 J=1,2 | |
8589 | ICSI=MOD(K(IPFS,3+J),MSTU(5)) | |
8590 | IF(ICSI.GT.0.AND.ICSI.NE.IPUS1.AND.ICSI.NE.IPUS2.AND. | |
8591 | & (KCFI(I).EQ.(-1)**(J+1).OR.KCFI(I).EQ.2)) THEN | |
8592 | NFIS(I)=NFIS(I)+1 | |
8593 | THEFIS(I,NFIS(I))=PYANGL(P(ICSI,3),SQRT(P(ICSI,1)**2+ | |
8594 | & P(ICSI,2)**2)) | |
8595 | IF(I.EQ.2) THEFIS(I,NFIS(I))=PARU(1)-THEFIS(I,NFIS(I)) | |
8596 | ENDIF | |
8597 | 130 CONTINUE | |
8598 | ENDIF | |
8599 | 140 CONTINUE | |
8600 | IF(NFIS(1)+NFIS(2).EQ.0) MFIS=0 | |
8601 | ENDIF | |
8602 | ||
8603 | C...Pick up leg with highest virtuality. | |
8604 | 150 N=N+1 | |
8605 | JT=1 | |
8606 | IF(N.GT.NS+1.AND.Q2S(2).GT.Q2S(1)) JT=2 | |
8607 | IF(MORE(JT).EQ.0) JT=3-JT | |
8608 | KFLB=KFLS(JT) | |
8609 | XB=XS(JT) | |
8610 | DO 160 KFL=-25,25 | |
8611 | XFB(KFL)=XFS(JT,KFL) | |
8612 | 160 CONTINUE | |
8613 | DSHR=2D0*SQRT(DSH) | |
8614 | DSHZ=DSH/ZS(JT) | |
8615 | ||
8616 | C...Check if allowed to branch. | |
8617 | MCEV=0 | |
8618 | IF(IABS(KFLB).LE.10.OR.KFLB.EQ.21) THEN | |
8619 | MCEV=1 | |
8620 | XEC=MAX(XEC0,XB*(1D0/(1D0-PARP(66))-1D0)) | |
8621 | IF(XB.GE.1D0-2D0*XEC) MCEV=0 | |
8622 | ENDIF | |
8623 | MEEV=0 | |
8624 | IF(MINT(44+JT).EQ.3) THEN | |
8625 | MEEV=1 | |
8626 | IF(XB.GE.1D0-2D0*XEE) MEEV=0 | |
8627 | IF((IABS(KFLB).LE.10.OR.KFLB.EQ.21).AND.XB.GE.1D0-2D0*XEC) | |
8628 | & MEEV=0 | |
8629 | C***Currently kill QED shower for resolved photoproduction. | |
8630 | IF(MINT(18+JT).EQ.1) MEEV=0 | |
8631 | C***Currently kill shower for W inside electron. | |
8632 | IF(IABS(KFLB).EQ.24) THEN | |
8633 | MCEV=0 | |
8634 | MEEV=0 | |
8635 | ENDIF | |
8636 | ENDIF | |
8637 | IF(MCEV.EQ.0.AND.MEEV.EQ.0) THEN | |
8638 | Q2B=0D0 | |
8639 | GOTO 250 | |
8640 | ENDIF | |
8641 | ||
8642 | C...Maximum Q2 with or without Q2 ordering. Effective Lambda and n_f. | |
8643 | Q2B=Q2S(JT) | |
8644 | TEVCB=TEVCSV(JT) | |
8645 | TEVEB=TEVESV(JT) | |
8646 | IF(MSTP(62).LE.1) THEN | |
8647 | IF(ZS(JT).GT.0.99999D0) THEN | |
8648 | Q2B=Q2S(JT) | |
8649 | ELSE | |
8650 | Q2B=0.5D0*(1D0/ZS(JT)+1D0)*Q2S(JT)+0.5D0*(1D0/ZS(JT)-1D0)* | |
8651 | & (Q2S(3-JT)-DSH+SQRT((DSH+Q2S(1)+Q2S(2))**2+ | |
8652 | & 8D0*Q2S(1)*Q2S(2)*ZS(JT)/(1D0-ZS(JT)))) | |
8653 | ENDIF | |
8654 | IF(MCEV.EQ.1) TEVCB=LOG(FQ2C*Q2B/ALAM(JT)**2) | |
8655 | IF(MEEV.EQ.1) TEVEB=LOG(Q2B/SPME) | |
8656 | ENDIF | |
8657 | IF(MCEV.EQ.1) THEN | |
8658 | ALSDUM=PYALPS(FQ2C*Q2B) | |
8659 | TEVCB=TEVCB+2D0*LOG(ALAM(JT)/PARU(117)) | |
8660 | ALAM(JT)=PARU(117) | |
8661 | B0=(33D0-2D0*MSTU(118))/6D0 | |
8662 | ENDIF | |
8663 | TEVCBS=TEVCB | |
8664 | TEVEBS=TEVEB | |
8665 | ||
8666 | C...Select side for interference with final state partons. | |
8667 | IF(MFIS.GE.1.AND.N.LE.NS+2) THEN | |
8668 | IFI=N-NS | |
8669 | ISFI(IFI)=0 | |
8670 | IF(IABS(KCFI(IFI)).EQ.1.AND.NFIS(IFI).EQ.1) THEN | |
8671 | ISFI(IFI)=1 | |
8672 | ELSEIF(KCFI(IFI).EQ.2.AND.NFIS(IFI).EQ.1) THEN | |
8673 | IF(PYR(0).GT.0.5D0) ISFI(IFI)=1 | |
8674 | ELSEIF(KCFI(IFI).EQ.2.AND.NFIS(IFI).EQ.2) THEN | |
8675 | ISFI(IFI)=1 | |
8676 | IF(PYR(0).GT.0.5D0) ISFI(IFI)=2 | |
8677 | ENDIF | |
8678 | ENDIF | |
8679 | ||
8680 | C...Calculate Altarelli-Parisi weights. | |
8681 | DO 170 KFL=-25,25 | |
8682 | WTAPC(KFL)=0D0 | |
8683 | WTAPE(KFL)=0D0 | |
8684 | WTSF(KFL)=0D0 | |
8685 | 170 CONTINUE | |
8686 | C...q -> q, g -> q. | |
8687 | IF(IABS(KFLB).LE.10) THEN | |
8688 | WTAPC(KFLB)=(8D0/3D0)*LOG((1D0-XEC-XB)*(XB+XEC)/(XEC*(1D0-XEC))) | |
8689 | WTAPC(21)=0.5D0*(XB/(XB+XEC)-XB/(1D0-XEC)) | |
8690 | C...f -> f, gamma -> f. | |
8691 | ELSEIF(IABS(KFLB).LE.20) THEN | |
8692 | WTAPF1=LOG((1D0-XEE-XB)*(XB+XEE)/(XEE*(1D0-XEE))) | |
8693 | WTAPF2=LOG((1D0-XEE-XB)*(1D0-XEE)/(XEE*(XB+XEE))) | |
8694 | WTAPE(KFLB)=2D0*(WTAPF1+WTAPF2) | |
8695 | IF(MSTP(12).GE.1) WTAPE(22)=XB/(XB+XEE)-XB/(1D0-XEE) | |
8696 | C...f -> g, g -> g. | |
8697 | ELSEIF(KFLB.EQ.21) THEN | |
8698 | WTAPQ=(16D0/3D0)*(SQRT((1D0-XEC)/XB)-SQRT((XB+XEC)/XB)) | |
8699 | DO 180 KFL=1,MSTP(58) | |
8700 | WTAPC(KFL)=WTAPQ | |
8701 | WTAPC(-KFL)=WTAPQ | |
8702 | 180 CONTINUE | |
8703 | WTAPC(21)=6D0*LOG((1D0-XEC-XB)/XEC) | |
8704 | C...f -> gamma, W+, W-. | |
8705 | ELSEIF(KFLB.EQ.22) THEN | |
8706 | WTAPF=LOG((1D0-XEE-XB)*(1D0-XEE)/(XEE*(XB+XEE)))/XB | |
8707 | WTAPE(11)=WTAPF | |
8708 | WTAPE(-11)=WTAPF | |
8709 | ELSEIF(KFLB.EQ.24) THEN | |
8710 | WTAPE(-11)=1D0/(4D0*PARU(102))*LOG((1D0-XEE-XB)*(1D0-XEE)/ | |
8711 | & (XEE*(XB+XEE)))/XB | |
8712 | ELSEIF(KFLB.EQ.-24) THEN | |
8713 | WTAPE(11)=1D0/(4D0*PARU(102))*LOG((1D0-XEE-XB)*(1D0-XEE)/ | |
8714 | & (XEE*(XB+XEE)))/XB | |
8715 | ENDIF | |
8716 | ||
8717 | C...Calculate parton distribution weights and sum. | |
8718 | NTRY=0 | |
8719 | 190 NTRY=NTRY+1 | |
8720 | IF(NTRY.GT.500) THEN | |
8721 | MINT(51)=1 | |
8722 | RETURN | |
8723 | ENDIF | |
8724 | WTSUMC=0D0 | |
8725 | WTSUME=0D0 | |
8726 | XFBO=MAX(1D-10,XFB(KFLB)) | |
8727 | DO 200 KFL=-25,25 | |
8728 | WTSF(KFL)=XFB(KFL)/XFBO | |
8729 | WTSUMC=WTSUMC+WTAPC(KFL)*WTSF(KFL) | |
8730 | WTSUME=WTSUME+WTAPE(KFL)*WTSF(KFL) | |
8731 | 200 CONTINUE | |
8732 | WTSUMC=MAX(0.0001D0,WTSUMC) | |
8733 | WTSUME=MAX(0.0001D0/FWTE,WTSUME) | |
8734 | ||
8735 | C...Choose new t: fix alpha_s, alpha_s(Q^2), alpha_s(k_T^2). | |
8736 | NTRY2=0 | |
8737 | 210 NTRY2=NTRY2+1 | |
8738 | IF(NTRY2.GT.500) THEN | |
8739 | MINT(51)=1 | |
8740 | RETURN | |
8741 | ENDIF | |
8742 | IF(MCEV.EQ.1) THEN | |
8743 | IF(MSTP(64).LE.0) THEN | |
8744 | TEVCB=TEVCB+LOG(PYR(0))*PARU(2)/(PARU(111)*WTSUMC) | |
8745 | ELSEIF(MSTP(64).EQ.1) THEN | |
8746 | TEVCB=TEVCB*EXP(MAX(-50D0,LOG(PYR(0))*B0/WTSUMC)) | |
8747 | ELSE | |
8748 | TEVCB=TEVCB*EXP(MAX(-50D0,LOG(PYR(0))*B0/(5D0*WTSUMC))) | |
8749 | ENDIF | |
8750 | ENDIF | |
8751 | IF(MEEV.EQ.1) THEN | |
8752 | TEVEB=TEVEB*EXP(MAX(-50D0,LOG(PYR(0))*PARU(2)/ | |
8753 | & (PARU(101)*FWTE*WTSUME*TEMX))) | |
8754 | ENDIF | |
8755 | ||
8756 | C...Translate t into Q2 scale; choose between QCD and QED evolution. | |
8757 | 220 IF(MCEV.EQ.1) Q2CB=ALAM(JT)**2*EXP(MAX(-50D0,TEVCB))/FQ2C | |
8758 | IF(MEEV.EQ.1) Q2EB=SPME*EXP(MAX(-50D0,TEVEB)) | |
8759 | MCE=0 | |
8760 | IF(MCEV.EQ.0.AND.MEEV.EQ.0) THEN | |
8761 | ELSEIF(MCEV.EQ.1.AND.MEEV.EQ.0) THEN | |
8762 | IF(Q2CB.GT.Q2MNCS(JT)) MCE=1 | |
8763 | ELSEIF(MCEV.EQ.0.AND.MEEV.EQ.1) THEN | |
8764 | IF(Q2EB.GT.Q2MNE) MCE=2 | |
8765 | ELSEIF(Q2MNCS(JT).GT.Q2MNE) THEN | |
8766 | MCE=1 | |
8767 | IF(Q2EB.GT.Q2CB.OR.Q2CB.LE.Q2MNCS(JT)) MCE=2 | |
8768 | IF(MCE.EQ.2.AND.Q2EB.LE.Q2MNE) MCE=0 | |
8769 | ELSE | |
8770 | MCE=2 | |
8771 | IF(Q2CB.GT.Q2EB.OR.Q2EB.LE.Q2MNE) MCE=1 | |
8772 | IF(MCE.EQ.1.AND.Q2CB.LE.Q2MNCS(JT)) MCE=0 | |
8773 | ENDIF | |
8774 | ||
8775 | C...Evolution possibly ended. Update t values. | |
8776 | IF(MCE.EQ.0) THEN | |
8777 | Q2B=0D0 | |
8778 | GOTO 250 | |
8779 | ELSEIF(MCE.EQ.1) THEN | |
8780 | Q2B=Q2CB | |
8781 | Q2REF=FQ2C*Q2B | |
8782 | IF(MEEV.EQ.1) TEVEB=LOG(Q2B/SPME) | |
8783 | ELSE | |
8784 | Q2B=Q2EB | |
8785 | Q2REF=Q2B | |
8786 | IF(MCEV.EQ.1) TEVCB=LOG(FQ2C*Q2B/ALAM(JT)**2) | |
8787 | ENDIF | |
8788 | ||
8789 | C...Select flavour for branching parton. | |
8790 | IF(MCE.EQ.1) WTRAN=PYR(0)*WTSUMC | |
8791 | IF(MCE.EQ.2) WTRAN=PYR(0)*WTSUME | |
8792 | KFLA=-25 | |
8793 | 230 KFLA=KFLA+1 | |
8794 | IF(MCE.EQ.1) WTRAN=WTRAN-WTAPC(KFLA)*WTSF(KFLA) | |
8795 | IF(MCE.EQ.2) WTRAN=WTRAN-WTAPE(KFLA)*WTSF(KFLA) | |
8796 | IF(KFLA.LE.24.AND.WTRAN.GT.0D0) GOTO 230 | |
8797 | IF(KFLA.EQ.25) THEN | |
8798 | Q2B=0D0 | |
8799 | GOTO 250 | |
8800 | ENDIF | |
8801 | ||
8802 | C...Choose z value and corrective weight. | |
8803 | WTZ=0D0 | |
8804 | C...q -> q + g. | |
8805 | IF(IABS(KFLA).LE.10.AND.IABS(KFLB).LE.10) THEN | |
8806 | Z=1D0-((1D0-XB-XEC)/(1D0-XEC))* | |
8807 | & (XEC*(1D0-XEC)/((XB+XEC)*(1D0-XB-XEC)))**PYR(0) | |
8808 | WTZ=0.5D0*(1D0+Z**2) | |
8809 | C...q -> g + q. | |
8810 | ELSEIF(IABS(KFLA).LE.10.AND.KFLB.EQ.21) THEN | |
8811 | Z=XB/(SQRT(XB+XEC)+PYR(0)*(SQRT(1D0-XEC)-SQRT(XB+XEC)))**2 | |
8812 | WTZ=0.5D0*(1D0+(1D0-Z)**2)*SQRT(Z) | |
8813 | C...f -> f + gamma. | |
8814 | ELSEIF(IABS(KFLA).LE.20.AND.IABS(KFLB).LE.20) THEN | |
8815 | IF(WTAPF1.GT.PYR(0)*(WTAPF1+WTAPF2)) THEN | |
8816 | Z=1D0-((1D0-XB-XEE)/(1D0-XEE))* | |
8817 | & (XEE*(1D0-XEE)/((XB+XEE)*(1D0-XB-XEE)))**PYR(0) | |
8818 | ELSE | |
8819 | Z=XB+XB*(XEE/(1D0-XEE))* | |
8820 | & ((1D0-XB-XEE)*(1D0-XEE)/(XEE*(XB+XEE)))**PYR(0) | |
8821 | ENDIF | |
8822 | WTZ=0.5D0*(1D0+Z**2)*(Z-XB)/(1D0-XB) | |
8823 | C...f -> gamma + f. | |
8824 | ELSEIF(IABS(KFLA).LE.20.AND.KFLB.EQ.22) THEN | |
8825 | Z=XB+XB*(XEE/(1D0-XEE))* | |
8826 | & ((1D0-XB-XEE)*(1D0-XEE)/(XEE*(XB+XEE)))**PYR(0) | |
8827 | WTZ=0.5D0*(1D0+(1D0-Z)**2)*XB*(Z-XB)/Z | |
8828 | C...f -> W+- + f'. | |
8829 | ELSEIF(IABS(KFLA).LE.20.AND.IABS(KFLB).EQ.24) THEN | |
8830 | Z=XB+XB*(XEE/(1D0-XEE))* | |
8831 | & ((1D0-XB-XEE)*(1D0-XEE)/(XEE*(XB+XEE)))**PYR(0) | |
8832 | WTZ=0.5D0*(1D0+(1D0-Z)**2)*(XB*(Z-XB)/Z)* | |
8833 | & (Q2B/(Q2B+PMAS(24,1)**2)) | |
8834 | C...g -> q + qbar. | |
8835 | ELSEIF(KFLA.EQ.21.AND.IABS(KFLB).LE.10) THEN | |
8836 | Z=XB/(1D0-XEC)+PYR(0)*(XB/(XB+XEC)-XB/(1D0-XEC)) | |
8837 | WTZ=1D0-2D0*Z*(1D0-Z) | |
8838 | C...g -> g + g. | |
8839 | ELSEIF(KFLA.EQ.21.AND.KFLB.EQ.21) THEN | |
8840 | Z=1D0/(1D0+((1D0-XEC-XB)/XB)*(XEC/(1D0-XEC-XB))**PYR(0)) | |
8841 | WTZ=(1D0-Z*(1D0-Z))**2 | |
8842 | C...gamma -> f + fbar. | |
8843 | ELSEIF(KFLA.EQ.22.AND.IABS(KFLB).LE.20) THEN | |
8844 | Z=XB/(1D0-XEE)+PYR(0)*(XB/(XB+XEE)-XB/(1D0-XEE)) | |
8845 | WTZ=1D0-2D0*Z*(1D0-Z) | |
8846 | ENDIF | |
8847 | IF(MCE.EQ.2) WTZ=(WTZ/FWTE)*(TEVEB/TEMX) | |
8848 | ||
8849 | C...Option with resummation of soft gluon emission as effective z shift. | |
8850 | IF(MCE.EQ.1) THEN | |
8851 | IF(MSTP(65).GE.1) THEN | |
8852 | RSOFT=6D0 | |
8853 | IF(KFLB.NE.21) RSOFT=8D0/3D0 | |
8854 | Z=Z*(TEVCB/TEVCSV(JT))**(RSOFT*XEC/((XB+XEC)*B0)) | |
8855 | IF(Z.LE.XB) GOTO 210 | |
8856 | ENDIF | |
8857 | ||
8858 | C...Option with alpha_s(k_T^2): demand k_T^2 > cutoff, reweight. | |
8859 | IF(MSTP(64).GE.2) THEN | |
8860 | IF((1D0-Z)*Q2B.LT.Q2MNCS(JT)) GOTO 210 | |
8861 | ALPRAT=TEVCB/(TEVCB+LOG(1D0-Z)) | |
8862 | IF(ALPRAT.LT.5D0*PYR(0)) GOTO 210 | |
8863 | IF(ALPRAT.GT.5D0) WTZ=WTZ*ALPRAT/5D0 | |
8864 | ENDIF | |
8865 | ||
8866 | C...Impose angular constraint in first branching from interference | |
8867 | C...with final state partons. | |
8868 | IF(MFIS.GE.1.AND.N.LE.NS+2.AND.NTRY2.LT.200) THEN | |
8869 | THE2D=(4D0*Q2B)/(DSH*(1D0-Z)) | |
8870 | IF(N.EQ.NS+1.AND.ISFI(1).GE.1) THEN | |
8871 | IF(THE2D.GT.THEFIS(1,ISFI(1))**2) GOTO 210 | |
8872 | ELSEIF(N.EQ.NS+2.AND.ISFI(2).GE.1) THEN | |
8873 | IF(THE2D.GT.THEFIS(2,ISFI(2))**2) GOTO 210 | |
8874 | ENDIF | |
8875 | ENDIF | |
8876 | ||
8877 | C...Option with angular ordering requirement. | |
8878 | IF(MSTP(62).GE.3.AND.NTRY2.LT.200) THEN | |
8879 | THE2T=(4D0*Z**2*Q2B)/(VINT(2)*(1D0-Z)*XB**2) | |
8880 | IF(THE2T.GT.THE2(JT)) GOTO 210 | |
8881 | ENDIF | |
8882 | ENDIF | |
8883 | ||
8884 | C...Weighting with new parton distributions. | |
8885 | MINT(105)=MINT(102+JT) | |
8886 | MINT(109)=MINT(106+JT) | |
8887 | IF(MSTP(57).LE.1) THEN | |
8888 | CALL PYPDFU(KFBEAM(JT),XB,Q2REF,XFN) | |
8889 | ELSE | |
8890 | CALL PYPDFL(KFBEAM(JT),XB,Q2REF,XFN) | |
8891 | ENDIF | |
8892 | XFBN=XFN(KFLB) | |
8893 | IF(XFBN.LT.1D-20) THEN | |
8894 | IF(KFLA.EQ.KFLB) THEN | |
8895 | TEVCB=TEVCBS | |
8896 | TEVEB=TEVEBS | |
8897 | WTAPC(KFLB)=0D0 | |
8898 | WTAPE(KFLB)=0D0 | |
8899 | GOTO 190 | |
8900 | ELSEIF(MCE.EQ.1.AND.TEVCBS-TEVCB.GT.0.2D0) THEN | |
8901 | TEVCB=0.5D0*(TEVCBS+TEVCB) | |
8902 | GOTO 220 | |
8903 | ELSEIF(MCE.EQ.2.AND.TEVEBS-TEVEB.GT.0.2D0) THEN | |
8904 | TEVEB=0.5D0*(TEVEBS+TEVEB) | |
8905 | GOTO 220 | |
8906 | ELSE | |
8907 | XFBN=1D-10 | |
8908 | XFN(KFLB)=XFBN | |
8909 | ENDIF | |
8910 | ENDIF | |
8911 | DO 240 KFL=-25,25 | |
8912 | XFB(KFL)=XFN(KFL) | |
8913 | 240 CONTINUE | |
8914 | XA=XB/Z | |
8915 | IF(MSTP(57).LE.1) THEN | |
8916 | CALL PYPDFU(KFBEAM(JT),XA,Q2REF,XFA) | |
8917 | ELSE | |
8918 | CALL PYPDFL(KFBEAM(JT),XA,Q2REF,XFA) | |
8919 | ENDIF | |
8920 | XFAN=XFA(KFLA) | |
8921 | IF(XFAN.LT.1D-20) GOTO 190 | |
8922 | WTSFA=WTSF(KFLA) | |
8923 | IF(WTZ*XFAN/XFBN.LT.PYR(0)*WTSFA) GOTO 190 | |
8924 | ||
8925 | C...Define two hard scatterers in their CM-frame. | |
8926 | 250 IF(N.EQ.NS+2) THEN | |
8927 | DQ2(JT)=Q2B | |
8928 | DPLCM=SQRT((DSH+DQ2(1)+DQ2(2))**2-4D0*DQ2(1)*DQ2(2))/DSHR | |
8929 | DO 270 JR=1,2 | |
8930 | I=NS+JR | |
8931 | IF(JR.EQ.1) IPO=IPUS1 | |
8932 | IF(JR.EQ.2) IPO=IPUS2 | |
8933 | DO 260 J=1,5 | |
8934 | K(I,J)=0 | |
8935 | P(I,J)=0D0 | |
8936 | V(I,J)=0D0 | |
8937 | 260 CONTINUE | |
8938 | K(I,1)=14 | |
8939 | K(I,2)=KFLS(JR+2) | |
8940 | K(I,4)=IPO | |
8941 | K(I,5)=IPO | |
8942 | P(I,3)=DPLCM*(-1)**(JR+1) | |
8943 | P(I,4)=(DSH+DQ2(3-JR)-DQ2(JR))/DSHR | |
8944 | P(I,5)=-SQRT(DQ2(JR)) | |
8945 | K(IPO,1)=14 | |
8946 | K(IPO,3)=I | |
8947 | K(IPO,4)=MOD(K(IPO,4),MSTU(5))+MSTU(5)*I | |
8948 | K(IPO,5)=MOD(K(IPO,5),MSTU(5))+MSTU(5)*I | |
8949 | 270 CONTINUE | |
8950 | ||
8951 | C...Find maximum allowed mass of timelike parton. | |
8952 | ELSEIF(N.GT.NS+2) THEN | |
8953 | JR=3-JT | |
8954 | DQ2(3)=Q2B | |
8955 | DPC(1)=P(IS(1),4) | |
8956 | DPC(2)=P(IS(2),4) | |
8957 | DPC(3)=0.5D0*(ABS(P(IS(1),3))+ABS(P(IS(2),3))) | |
8958 | DPD(1)=DSH+DQ2(JR)+DQ2(JT) | |
8959 | DPD(2)=DSHZ+DQ2(JR)+DQ2(3) | |
8960 | DPD(3)=SQRT(DPD(1)**2-4D0*DQ2(JR)*DQ2(JT)) | |
8961 | DPD(4)=SQRT(DPD(2)**2-4D0*DQ2(JR)*DQ2(3)) | |
8962 | IKIN=0 | |
8963 | IF(Q2S(JR).GE.0.25D0*Q2MNC.AND.DPD(1)-DPD(3).GE. | |
8964 | & 1D-10*DPD(1)) IKIN=1 | |
8965 | IF(IKIN.EQ.0) DMSMA=(DQ2(JT)/ZS(JT)-DQ2(3))* | |
8966 | & (DSH/(DSH+DQ2(JT))-DSH/(DSHZ+DQ2(3))) | |
8967 | IF(IKIN.EQ.1) DMSMA=(DPD(1)*DPD(2)-DPD(3)*DPD(4))/ | |
8968 | & (2D0*DQ2(JR))-DQ2(JT)-DQ2(3) | |
8969 | ||
8970 | C...Generate timelike parton shower (if required). | |
8971 | IT=N | |
8972 | DO 280 J=1,5 | |
8973 | K(IT,J)=0 | |
8974 | P(IT,J)=0D0 | |
8975 | V(IT,J)=0D0 | |
8976 | 280 CONTINUE | |
8977 | K(IT,1)=3 | |
8978 | C...f -> f + g (gamma). | |
8979 | IF(IABS(KFLB).LE.20.AND.IABS(KFLS(JT+2)).LE.20) THEN | |
8980 | K(IT,2)=21 | |
8981 | IF(IABS(KFLB).GE.11) K(IT,2)=22 | |
8982 | C...f -> g (gamma, W+-) + f. | |
8983 | ELSEIF(IABS(KFLB).LE.20.AND.IABS(KFLS(JT+2)).GT.20) THEN | |
8984 | K(IT,2)=KFLB | |
8985 | IF(KFLS(JT+2).EQ.24) THEN | |
8986 | K(IT,2)=-12 | |
8987 | ELSEIF(KFLS(JT+2).EQ.-24) THEN | |
8988 | K(IT,2)=12 | |
8989 | ENDIF | |
8990 | C...g (gamma) -> f + fbar, g + g. | |
8991 | ELSE | |
8992 | K(IT,2)=-KFLS(JT+2) | |
8993 | IF(KFLS(JT+2).GT.20) K(IT,2)=KFLS(JT+2) | |
8994 | ENDIF | |
8995 | P(IT,5)=PYMASS(K(IT,2)) | |
8996 | IF(DMSMA.LE.P(IT,5)**2) GOTO 100 | |
8997 | IF(MSTP(63).GE.1.AND.MCE.EQ.1) THEN | |
8998 | MSTJ48=MSTJ(48) | |
8999 | PARJ85=PARJ(85) | |
9000 | P(IT,4)=(DSHZ-DSH-P(IT,5)**2)/DSHR | |
9001 | P(IT,3)=SQRT(P(IT,4)**2-P(IT,5)**2) | |
9002 | IF(MSTP(63).EQ.1) THEN | |
9003 | Q2TIM=DMSMA | |
9004 | ELSEIF(MSTP(63).EQ.2) THEN | |
9005 | Q2TIM=MIN(DMSMA,PARP(71)*Q2S(JT)) | |
9006 | ELSE | |
9007 | Q2TIM=DMSMA | |
9008 | MSTJ(48)=1 | |
9009 | IF(IKIN.EQ.0) DPT2=DMSMA*(DSHZ+DQ2(3))/(DSH+DQ2(JT)) | |
9010 | IF(IKIN.EQ.1) DPT2=DMSMA*(0.5D0*DPD(1)*DPD(2)+0.5D0*DPD(3)* | |
9011 | & DPD(4)-DQ2(JR)*(DQ2(JT)+DQ2(3)))/(4D0*DSH*DPC(3)**2) | |
9012 | PARJ(85)=SQRT(MAX(0D0,DPT2))* | |
9013 | & (1D0/P(IT,4)+1D0/P(IS(JT),4)) | |
9014 | ENDIF | |
9015 | CALL PYSHOW(IT,0,SQRT(Q2TIM)) | |
9016 | MSTJ(48)=MSTJ48 | |
9017 | PARJ(85)=PARJ85 | |
9018 | IF(N.GE.IT+1) P(IT,5)=P(IT+1,5) | |
9019 | ENDIF | |
9020 | ||
9021 | C...Reconstruct kinematics of branching: timelike parton shower. | |
9022 | DMS=P(IT,5)**2 | |
9023 | IF(IKIN.EQ.0) DPT2=(DMSMA-DMS)*(DSHZ+DQ2(3))/(DSH+DQ2(JT)) | |
9024 | IF(IKIN.EQ.1) DPT2=(DMSMA-DMS)*(0.5D0*DPD(1)*DPD(2)+ | |
9025 | & 0.5D0*DPD(3)*DPD(4)-DQ2(JR)*(DQ2(JT)+DQ2(3)+DMS))/ | |
9026 | & (4D0*DSH*DPC(3)**2) | |
9027 | IF(DPT2.LT.0D0) GOTO 100 | |
9028 | DPB(1)=(0.5D0*DPD(2)-DPC(JR)*(DSHZ+DQ2(JR)-DQ2(JT)-DMS)/ | |
9029 | & DSHR)/DPC(3)-DPC(3) | |
9030 | P(IT,1)=SQRT(DPT2) | |
9031 | P(IT,3)=DPB(1)*(-1)**(JT+1) | |
9032 | P(IT,4)=SQRT(DPT2+DPB(1)**2+DMS) | |
9033 | IF(N.GE.IT+1) THEN | |
9034 | DPB(1)=SQRT(DPB(1)**2+DPT2) | |
9035 | DPB(2)=SQRT(DPB(1)**2+DMS) | |
9036 | DPB(3)=P(IT+1,3) | |
9037 | DPB(4)=SQRT(DPB(3)**2+DMS) | |
9038 | DBEZ=(DPB(4)*DPB(1)-DPB(3)*DPB(2))/(DPB(4)*DPB(2)-DPB(3)* | |
9039 | & DPB(1)) | |
9040 | CALL PYROBO(IT+1,N,0D0,0D0,0D0,0D0,DBEZ) | |
9041 | THE=PYANGL(P(IT,3),P(IT,1)) | |
9042 | CALL PYROBO(IT+1,N,THE,0D0,0D0,0D0,0D0) | |
9043 | ENDIF | |
9044 | ||
9045 | C...Reconstruct kinematics of branching: spacelike parton. | |
9046 | DO 290 J=1,5 | |
9047 | K(N+1,J)=0 | |
9048 | P(N+1,J)=0D0 | |
9049 | V(N+1,J)=0D0 | |
9050 | 290 CONTINUE | |
9051 | K(N+1,1)=14 | |
9052 | K(N+1,2)=KFLB | |
9053 | P(N+1,1)=P(IT,1) | |
9054 | P(N+1,3)=P(IT,3)+P(IS(JT),3) | |
9055 | P(N+1,4)=P(IT,4)+P(IS(JT),4) | |
9056 | P(N+1,5)=-SQRT(DQ2(3)) | |
9057 | ||
9058 | C...Define colour flow of branching. | |
9059 | K(IS(JT),3)=N+1 | |
9060 | K(IT,3)=N+1 | |
9061 | IM1=N+1 | |
9062 | IM2=N+1 | |
9063 | C...f -> f + gamma (Z, W). | |
9064 | IF(IABS(K(IT,2)).GE.22) THEN | |
9065 | K(IT,1)=1 | |
9066 | ID1=IS(JT) | |
9067 | ID2=IS(JT) | |
9068 | C...f -> gamma (Z, W) + f. | |
9069 | ELSEIF(IABS(K(IS(JT),2)).GE.22) THEN | |
9070 | ID1=IT | |
9071 | ID2=IT | |
9072 | C...gamma -> q + qbar, g + g. | |
9073 | ELSEIF(K(N+1,2).EQ.22) THEN | |
9074 | ID1=IS(JT) | |
9075 | ID2=IT | |
9076 | IM1=ID2 | |
9077 | IM2=ID1 | |
9078 | C...q -> q + g. | |
9079 | ELSEIF(K(N+1,2).GT.0.AND.K(N+1,2).NE.21.AND.K(IT,2).EQ.21) THEN | |
9080 | ID1=IT | |
9081 | ID2=IS(JT) | |
9082 | C...q -> g + q. | |
9083 | ELSEIF(K(N+1,2).GT.0.AND.K(N+1,2).NE.21) THEN | |
9084 | ID1=IS(JT) | |
9085 | ID2=IT | |
9086 | C...qbar -> qbar + g. | |
9087 | ELSEIF(K(N+1,2).LT.0.AND.K(IT,2).EQ.21) THEN | |
9088 | ID1=IS(JT) | |
9089 | ID2=IT | |
9090 | C...qbar -> g + qbar. | |
9091 | ELSEIF(K(N+1,2).LT.0) THEN | |
9092 | ID1=IT | |
9093 | ID2=IS(JT) | |
9094 | C...g -> g + g; g -> q + qbar. | |
9095 | ELSEIF((K(IT,2).EQ.21.AND.PYR(0).GT.0.5D0).OR.K(IT,2).LT.0) THEN | |
9096 | ID1=IS(JT) | |
9097 | ID2=IT | |
9098 | ELSE | |
9099 | ID1=IT | |
9100 | ID2=IS(JT) | |
9101 | ENDIF | |
9102 | IF(IM1.EQ.N+1) K(IM1,4)=K(IM1,4)+ID1 | |
9103 | IF(IM2.EQ.N+1) K(IM2,5)=K(IM2,5)+ID2 | |
9104 | K(ID1,4)=K(ID1,4)+MSTU(5)*IM1 | |
9105 | K(ID2,5)=K(ID2,5)+MSTU(5)*IM2 | |
9106 | IF(ID1.NE.ID2) THEN | |
9107 | K(ID1,5)=K(ID1,5)+MSTU(5)*ID2 | |
9108 | K(ID2,4)=K(ID2,4)+MSTU(5)*ID1 | |
9109 | ENDIF | |
9110 | N=N+1 | |
9111 | ||
9112 | C...Boost to new CM-frame. | |
9113 | DBSVX=(P(N,1)+P(IS(JR),1))/(P(N,4)+P(IS(JR),4)) | |
9114 | DBSVZ=(P(N,3)+P(IS(JR),3))/(P(N,4)+P(IS(JR),4)) | |
9115 | IF(DBSVX**2+DBSVZ**2.GE.1D0) GOTO 100 | |
9116 | CALL PYROBO(NS+1,N,0D0,0D0,-DBSVX,0D0,-DBSVZ) | |
9117 | IR=N+(JT-1)*(IS(1)-N) | |
9118 | CALL PYROBO(NS+1,N,-PYANGL(P(IR,3),P(IR,1)),PARU(2)*PYR(0), | |
9119 | & 0D0,0D0,0D0) | |
9120 | ENDIF | |
9121 | ||
9122 | C...Update kinematics variables. | |
9123 | IS(JT)=N | |
9124 | DQ2(JT)=Q2B | |
9125 | IF(MSTP(62).GE.3) THE2(JT)=THE2T | |
9126 | DSH=DSHZ | |
9127 | ||
9128 | C...Save quantities; loop back. | |
9129 | Q2S(JT)=Q2B | |
9130 | IF((MCEV.EQ.1.AND.Q2B.GE.0.25D0*Q2MNC).OR. | |
9131 | &(MEEV.EQ.1.AND.Q2B.GE.Q2MNE)) THEN | |
9132 | KFLS(JT+2)=KFLS(JT) | |
9133 | KFLS(JT)=KFLA | |
9134 | XS(JT)=XA | |
9135 | ZS(JT)=Z | |
9136 | DO 300 KFL=-25,25 | |
9137 | XFS(JT,KFL)=XFA(KFL) | |
9138 | 300 CONTINUE | |
9139 | TEVCSV(JT)=TEVCB | |
9140 | TEVESV(JT)=TEVEB | |
9141 | ELSE | |
9142 | MORE(JT)=0 | |
9143 | IF(JT.EQ.1) IPU1=N | |
9144 | IF(JT.EQ.2) IPU2=N | |
9145 | ENDIF | |
9146 | IF(N.GT.MSTU(4)-MSTU(32)-10) THEN | |
9147 | CALL PYERRM(11,'(PYSSPA:) no more memory left in PYJETS') | |
9148 | IF(MSTU(21).GE.1) N=NS | |
9149 | IF(MSTU(21).GE.1) RETURN | |
9150 | ENDIF | |
9151 | IF(MORE(1).EQ.1.OR.MORE(2).EQ.1) GOTO 150 | |
9152 | ||
9153 | C...Boost hard scattering partons to frame of shower initiators. | |
9154 | DO 310 J=1,3 | |
9155 | ROBO(J+2)=(P(NS+1,J)+P(NS+2,J))/(P(NS+1,4)+P(NS+2,4)) | |
9156 | 310 CONTINUE | |
9157 | K(N+2,1)=1 | |
9158 | DO 320 J=1,5 | |
9159 | P(N+2,J)=P(NS+1,J) | |
9160 | 320 CONTINUE | |
9161 | ROBOT=ROBO(3)**2+ROBO(4)**2+ROBO(5)**2 | |
9162 | IF(ROBOT.GE.0.999999D0) THEN | |
9163 | ROBOT=1.00001D0*SQRT(ROBOT) | |
9164 | ROBO(3)=ROBO(3)/ROBOT | |
9165 | ROBO(4)=ROBO(4)/ROBOT | |
9166 | ROBO(5)=ROBO(5)/ROBOT | |
9167 | ENDIF | |
9168 | CALL PYROBO(N+2,N+2,0D0,0D0,-ROBO(3),-ROBO(4),-ROBO(5)) | |
9169 | ROBO(2)=PYANGL(P(N+2,1),P(N+2,2)) | |
9170 | ROBO(1)=PYANGL(P(N+2,3),SQRT(P(N+2,1)**2+P(N+2,2)**2)) | |
9171 | CALL PYROBO(MINT(83)+5,NS,ROBO(1),ROBO(2),ROBO(3),ROBO(4), | |
9172 | &ROBO(5)) | |
9173 | ||
9174 | C...Store user information. Reset Lambda value. | |
9175 | K(IPU1,3)=MINT(83)+3 | |
9176 | K(IPU2,3)=MINT(83)+4 | |
9177 | DO 330 JT=1,2 | |
9178 | MINT(12+JT)=KFLS(JT) | |
9179 | VINT(140+JT)=XS(JT) | |
9180 | IF(MINT(18+JT).EQ.1) VINT(140+JT)=VINT(154+JT)*XS(JT) | |
9181 | 330 CONTINUE | |
9182 | PARU(112)=ALAMS | |
9183 | ||
9184 | RETURN | |
9185 | END | |
9186 | ||
9187 | C********************************************************************* | |
9188 | ||
9189 | C...PYRESD | |
9190 | C...Allows resonances to decay (including parton showers for hadronic | |
9191 | C...channels). | |
9192 | ||
9193 | SUBROUTINE PYRESD(IRES) | |
9194 | ||
9195 | C...Double precision and integer declarations. | |
9196 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
9197 | INTEGER PYK,PYCHGE,PYCOMP | |
9198 | C...Parameter statement to help give large particle numbers. | |
9199 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
9200 | C...Commonblocks. | |
9201 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
9202 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
9203 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
9204 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
9205 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
9206 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
9207 | COMMON/PYINT1/MINT(400),VINT(400) | |
9208 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
9209 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
9210 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/, | |
9211 | &/PYINT1/,/PYINT2/,/PYINT4/ | |
9212 | C...Local arrays and complex and character variables. | |
9213 | DIMENSION IREF(50,8),KDCY(3),KFL1(3),KFL2(3),KFL3(3),KEQL(3), | |
9214 | &KCQM(3),KCQ1(3),KCQ2(3),KCQ3(3),NSD(3),PMMN(3),ILIN(6), | |
9215 | &HGZ(3,3),COUP(6,4),CORL(2,2,2),PK(6,4),PKK(6,6),CTHE(3), | |
9216 | &PHI(3),WDTP(0:200),WDTE(0:200,0:5),DBEZQQ(3),DPMO(5),XM(5) | |
9217 | COMPLEX FGK,HA(6,6),HC(6,6) | |
9218 | REAL TIR,UIR | |
9219 | CHARACTER CODE*9,MASS*9 | |
9220 | ||
9221 | C...The F, Xi and Xj functions of Gunion and Kunszt | |
9222 | C...(Phys. Rev. D33, 665, plus errata from the authors). | |
9223 | FGK(I1,I2,I3,I4,I5,I6)=4.*HA(I1,I3)*HC(I2,I6)*(HA(I1,I5)* | |
9224 | &HC(I1,I4)+HA(I3,I5)*HC(I3,I4)) | |
9225 | DIGK(DT,DU)=-4D0*D34*D56+DT*(3D0*DT+4D0*DU)+DT**2*(DT*DU/ | |
9226 | &(D34*D56)-2D0*(1D0/D34+1D0/D56)*(DT+DU)+2D0*(D34/D56+D56/D34)) | |
9227 | DJGK(DT,DU)=8D0*(D34+D56)**2-8D0*(D34+D56)*(DT+DU)-6D0*DT*DU- | |
9228 | &2D0*DT*DU*(DT*DU/(D34*D56)-2D0*(1D0/D34+1D0/D56)*(DT+DU)+ | |
9229 | &2D0*(D34/D56+D56/D34)) | |
9230 | ||
9231 | C...Some general constants. | |
9232 | XW=PARU(102) | |
9233 | XWV=XW | |
9234 | IF(MSTP(8).GE.2) XW=1D0-(PMAS(24,1)/PMAS(23,1))**2 | |
9235 | XW1=1D0-XW | |
9236 | SQMZ=PMAS(23,1)**2 | |
9237 | GMMZ=PMAS(23,1)*PMAS(23,2) | |
9238 | SQMW=PMAS(24,1)**2 | |
9239 | GMMW=PMAS(24,1)*PMAS(24,2) | |
9240 | SH=VINT(44) | |
9241 | ||
9242 | C...Reset original resonance configuration. | |
9243 | DO 100 JT=1,8 | |
9244 | IREF(1,JT)=0 | |
9245 | 100 CONTINUE | |
9246 | ||
9247 | C...Define initial one, two or three objects for subprocess. | |
9248 | IF(IRES.EQ.0) THEN | |
9249 | ISUB=MINT(1) | |
9250 | IF(ISET(ISUB).EQ.1.OR.ISET(ISUB).EQ.3) THEN | |
9251 | IREF(1,1)=MINT(84)+2+ISET(ISUB) | |
9252 | IREF(1,4)=MINT(83)+6+ISET(ISUB) | |
9253 | ELSEIF(ISET(ISUB).EQ.2.OR.ISET(ISUB).EQ.4) THEN | |
9254 | IREF(1,1)=MINT(84)+1+ISET(ISUB) | |
9255 | IREF(1,2)=MINT(84)+2+ISET(ISUB) | |
9256 | IREF(1,4)=MINT(83)+5+ISET(ISUB) | |
9257 | IREF(1,5)=MINT(83)+6+ISET(ISUB) | |
9258 | ELSEIF(ISET(ISUB).EQ.5) THEN | |
9259 | IREF(1,1)=MINT(84)+3 | |
9260 | IREF(1,2)=MINT(84)+4 | |
9261 | IREF(1,3)=MINT(84)+5 | |
9262 | IREF(1,4)=MINT(83)+7 | |
9263 | IREF(1,5)=MINT(83)+8 | |
9264 | IREF(1,6)=MINT(83)+9 | |
9265 | ENDIF | |
9266 | ||
9267 | C...Define original resonance for odd cases. | |
9268 | ELSE | |
9269 | ISUB=0 | |
9270 | IREF(1,1)=IRES | |
9271 | ENDIF | |
9272 | ||
9273 | C...Check if initial resonance has been moved (in resonance + jet). | |
9274 | DO 120 JT=1,3 | |
9275 | IF(IREF(1,JT).GT.0) THEN | |
9276 | IF(K(IREF(1,JT),1).GT.10) THEN | |
9277 | KFA=IABS(K(IREF(1,JT),2)) | |
9278 | IF(KFA.GE.6.AND.KCHG(PYCOMP(KFA),2).NE.0) THEN | |
9279 | DO 110 I=IREF(1,JT)+1,N | |
9280 | IF(K(I,1).LE.10.AND.K(I,2).EQ.K(IREF(1,JT),2)) | |
9281 | & IREF(1,JT)=I | |
9282 | 110 CONTINUE | |
9283 | ELSE | |
9284 | KDA=MOD(K(IREF(1,JT),4),MSTU(4)) | |
9285 | IF(MWID(PYCOMP(KFA)).NE.0.AND.KDA.GT.1) IREF(1,JT)=KDA | |
9286 | ENDIF | |
9287 | ENDIF | |
9288 | ENDIF | |
9289 | 120 CONTINUE | |
9290 | ||
9291 | C...Loop over decay history. | |
9292 | NP=1 | |
9293 | IP=0 | |
9294 | 130 IP=IP+1 | |
9295 | NINH=0 | |
9296 | JTMAX=2 | |
9297 | IF(IREF(IP,2).EQ.0) JTMAX=1 | |
9298 | IF(IREF(IP,3).NE.0) JTMAX=3 | |
9299 | IT4=0 | |
9300 | NSAV=N | |
9301 | ||
9302 | C...Start treatment of one, two or three resonances in parallel. | |
9303 | 140 N=NSAV | |
9304 | DO 220 JT=1,JTMAX | |
9305 | ID=IREF(IP,JT) | |
9306 | KDCY(JT)=0 | |
9307 | KFL1(JT)=0 | |
9308 | KFL2(JT)=0 | |
9309 | KFL3(JT)=0 | |
9310 | KEQL(JT)=0 | |
9311 | NSD(JT)=ID | |
9312 | ||
9313 | C...Check whether particle can/is allowed to decay. | |
9314 | IF(ID.EQ.0) GOTO 210 | |
9315 | KFA=IABS(K(ID,2)) | |
9316 | KCA=PYCOMP(KFA) | |
9317 | IF(MWID(KCA).EQ.0) GOTO 210 | |
9318 | IF(K(ID,1).GT.10.OR.MDCY(KCA,1).EQ.0) GOTO 210 | |
9319 | IF(KFA.EQ.6.OR.KFA.EQ.7.OR.KFA.EQ.8.OR.KFA.EQ.17.OR. | |
9320 | & KFA.EQ.18) IT4=IT4+1 | |
9321 | K(ID,4)=MSTU(5)*(K(ID,4)/MSTU(5)) | |
9322 | K(ID,5)=MSTU(5)*(K(ID,5)/MSTU(5)) | |
9323 | ||
9324 | C...Info for selection of decay channel: sign, pairings. | |
9325 | IF(KCHG(KCA,3).EQ.0) THEN | |
9326 | IPM=2 | |
9327 | ELSE | |
9328 | IPM=(5-ISIGN(1,K(ID,2)))/2 | |
9329 | ENDIF | |
9330 | KFB=0 | |
9331 | IF(JTMAX.EQ.2) THEN | |
9332 | KFB=IABS(K(IREF(IP,3-JT),2)) | |
9333 | ELSEIF(JTMAX.EQ.3) THEN | |
9334 | JT2=JT+1-3*(JT/3) | |
9335 | KFB=IABS(K(IREF(IP,JT2),2)) | |
9336 | IF(KFB.NE.KFA) THEN | |
9337 | JT2=JT+2-3*((JT+1)/3) | |
9338 | KFB=IABS(K(IREF(IP,JT2),2)) | |
9339 | ENDIF | |
9340 | ENDIF | |
9341 | ||
9342 | C...Select decay channel. | |
9343 | IF(ISUB.EQ.1.OR.ISUB.EQ.15.OR.ISUB.EQ.19.OR.ISUB.EQ.22.OR. | |
9344 | & ISUB.EQ.30.OR.ISUB.EQ.35.OR.ISUB.EQ.141) MINT(61)=1 | |
9345 | CALL PYWIDT(KFA,P(ID,5)**2,WDTP,WDTE) | |
9346 | WDTE0S=WDTE(0,1)+WDTE(0,IPM)+WDTE(0,4) | |
9347 | IF(KFB.EQ.KFA) WDTE0S=WDTE0S+WDTE(0,5) | |
9348 | IF(WDTE0S.LE.0D0) GOTO 210 | |
9349 | RKFL=WDTE0S*PYR(0) | |
9350 | IDL=0 | |
9351 | 150 IDL=IDL+1 | |
9352 | IDC=IDL+MDCY(KCA,2)-1 | |
9353 | RKFL=RKFL-(WDTE(IDL,1)+WDTE(IDL,IPM)+WDTE(IDL,4)) | |
9354 | IF(KFB.EQ.KFA) RKFL=RKFL-WDTE(IDL,5) | |
9355 | IF(IDL.LT.MDCY(KCA,3).AND.RKFL.GT.0D0) GOTO 150 | |
9356 | ||
9357 | C...Read out flavours and colour charges of decay channel chosen. | |
9358 | KCQM(JT)=KCHG(KCA,2)*ISIGN(1,K(ID,2)) | |
9359 | IF(KCQM(JT).EQ.-2) KCQM(JT)=2 | |
9360 | KFL1(JT)=KFDP(IDC,1)*ISIGN(1,K(ID,2)) | |
9361 | KFC1A=PYCOMP(IABS(KFL1(JT))) | |
9362 | IF(KCHG(KFC1A,3).EQ.0) KFL1(JT)=IABS(KFL1(JT)) | |
9363 | KCQ1(JT)=KCHG(KFC1A,2)*ISIGN(1,KFL1(JT)) | |
9364 | IF(KCQ1(JT).EQ.-2) KCQ1(JT)=2 | |
9365 | KFL2(JT)=KFDP(IDC,2)*ISIGN(1,K(ID,2)) | |
9366 | KFC2A=PYCOMP(IABS(KFL2(JT))) | |
9367 | IF(KCHG(KFC2A,3).EQ.0) KFL2(JT)=IABS(KFL2(JT)) | |
9368 | KCQ2(JT)=KCHG(KFC2A,2)*ISIGN(1,KFL2(JT)) | |
9369 | IF(KCQ2(JT).EQ.-2) KCQ2(JT)=2 | |
9370 | KFL3(JT)=KFDP(IDC,3)*ISIGN(1,K(ID,2)) | |
9371 | IF(KFL3(JT).NE.0) THEN | |
9372 | KFC3A=PYCOMP(IABS(KFL3(JT))) | |
9373 | IF(KCHG(KFC3A,3).EQ.0) KFL3(JT)=IABS(KFL3(JT)) | |
9374 | KCQ3(JT)=KCHG(KFC3A,2)*ISIGN(1,KFL3(JT)) | |
9375 | IF(KCQ3(JT).EQ.-2) KCQ3(JT)=2 | |
9376 | ENDIF | |
9377 | ||
9378 | C...Set/save further info on channel. | |
9379 | KDCY(JT)=1 | |
9380 | IF(KFB.EQ.KFA) KEQL(JT)=MDME(IDC,1) | |
9381 | NSD(JT)=N | |
9382 | HGZ(JT,1)=VINT(111) | |
9383 | HGZ(JT,2)=VINT(112) | |
9384 | HGZ(JT,3)=VINT(114) | |
9385 | ||
9386 | C...Select masses; to begin with assume resonances narrow. | |
9387 | DO 170 I=1,3 | |
9388 | P(N+I,5)=0D0 | |
9389 | PMMN(I)=0D0 | |
9390 | IF(I.EQ.1) THEN | |
9391 | KFLW=IABS(KFL1(JT)) | |
9392 | KCW=KFC1A | |
9393 | ELSEIF(I.EQ.2) THEN | |
9394 | KFLW=IABS(KFL2(JT)) | |
9395 | KCW=KFC2A | |
9396 | ELSEIF(I.EQ.3) THEN | |
9397 | IF(KFL3(JT).EQ.0) GOTO 170 | |
9398 | KFLW=IABS(KFL3(JT)) | |
9399 | KCW=KFC3A | |
9400 | ENDIF | |
9401 | P(N+I,5)=PMAS(KCW,1) | |
9402 | CMRENNA++ | |
9403 | C...This prevents SUSY/t particles from becoming too light. | |
9404 | IF(KFLW/KSUSY1.EQ.1.OR.KFLW/KSUSY1.EQ.2) THEN | |
9405 | PMMN(I)=PMAS(KCW,1) | |
9406 | DO 160 IDC=MDCY(KCW,2),MDCY(KCW,2)+MDCY(KCW,3)-1 | |
9407 | IF(MDME(IDC,1).GT.0.AND.BRAT(IDC).GT.1E-4) THEN | |
9408 | PMSUM=PMAS(PYCOMP(KFDP(IDC,1)),1)+ | |
9409 | & PMAS(PYCOMP(KFDP(IDC,2)),1) | |
9410 | IF(KFDP(IDC,3).NE.0) PMSUM=PMSUM+ | |
9411 | & PMAS(PYCOMP(KFDP(IDC,3)),1) | |
9412 | PMMN(I)=MIN(PMMN(I),PMSUM) | |
9413 | ENDIF | |
9414 | 160 CONTINUE | |
9415 | CMRENNA-- | |
9416 | ELSEIF(KFLW.EQ.6) THEN | |
9417 | PMMN(I)=PMAS(24,1)+PMAS(5,1) | |
9418 | ENDIF | |
9419 | 170 CONTINUE | |
9420 | ||
9421 | C...Check which two out of three are widest. | |
9422 | IWID1=1 | |
9423 | IWID2=2 | |
9424 | PWID1=PMAS(KFC1A,2) | |
9425 | PWID2=PMAS(KFC2A,2) | |
9426 | KFLW1=IABS(KFL1(JT)) | |
9427 | KFLW2=IABS(KFL2(JT)) | |
9428 | IF(KFL3(JT).NE.0) THEN | |
9429 | PWID3=PMAS(KFC3A,2) | |
9430 | IF(PWID3.GT.PWID1.AND.PWID2.GE.PWID1) THEN | |
9431 | IWID1=3 | |
9432 | PWID1=PWID3 | |
9433 | KFLW1=IABS(KFL3(JT)) | |
9434 | ELSEIF(PWID3.GT.PWID2) THEN | |
9435 | IWID2=3 | |
9436 | PWID2=PWID3 | |
9437 | KFLW2=IABS(KFL3(JT)) | |
9438 | ENDIF | |
9439 | ENDIF | |
9440 | ||
9441 | C...If all narrow then only check that masses consistent. | |
9442 | IF(MSTP(42).LE.0.OR.(PWID1.LT.PARP(41).AND. | |
9443 | & PWID2.LT.PARP(41))) THEN | |
9444 | CMRENNA++ | |
9445 | C....Handle near degeneracy cases. | |
9446 | IF(KFA/KSUSY1.EQ.1.OR.KFA/KSUSY1.EQ.2) THEN | |
9447 | IF(P(N+1,5)+P(N+2,5)+P(N+3,5).GT.P(ID,5)) THEN | |
9448 | P(N+1,5)=P(ID,5)-P(N+2,5)-0.5D0 | |
9449 | IF(P(N+1,5).LT.0D0) P(N+1,5)=0D0 | |
9450 | ENDIF | |
9451 | ENDIF | |
9452 | CMRENNA-- | |
9453 | IF(P(N+1,5)+P(N+2,5)+P(N+3,5)+PARJ(64).GT.P(ID,5)) THEN | |
9454 | CALL PYERRM(13,'(PYRESD:) daughter masses too large') | |
9455 | MINT(51)=1 | |
9456 | RETURN | |
9457 | ENDIF | |
9458 | ||
9459 | C...For three wide resonances select narrower of three | |
9460 | C...according to BW decoupled from rest. | |
9461 | ELSE | |
9462 | PMTOT=P(ID,5) | |
9463 | IF(KFL3(JT).NE.0) THEN | |
9464 | IWID3=6-IWID1-IWID2 | |
9465 | KFLW3=IABS(KFL1(JT))+IABS(KFL2(JT))+IABS(KFL3(JT))- | |
9466 | & KFLW1-KFLW2 | |
9467 | LOOP=0 | |
9468 | 180 LOOP=LOOP+1 | |
9469 | P(N+IWID3,5)=PYMASS(KFLW3) | |
9470 | IF(LOOP.LE.10.AND. P(N+IWID3,5).LE.PMMN(IWID3)) GOTO 180 | |
9471 | PMTOT=PMTOT-P(N+IWID3,5) | |
9472 | ENDIF | |
9473 | C...Select other two correlated within remaining phase space. | |
9474 | IF(IP.EQ.1) THEN | |
9475 | CKIN45=CKIN(45) | |
9476 | CKIN47=CKIN(47) | |
9477 | CKIN(45)=MAX(PMMN(IWID1),CKIN(45)) | |
9478 | CKIN(47)=MAX(PMMN(IWID2),CKIN(47)) | |
9479 | CALL PYOFSH(2,KFA,KFLW1,KFLW2,PMTOT,P(N+IWID1,5), | |
9480 | & P(N+IWID2,5)) | |
9481 | CKIN(45)=CKIN45 | |
9482 | CKIN(47)=CKIN47 | |
9483 | ELSE | |
9484 | CKIN(49)=PMMN(IWID1) | |
9485 | CKIN(50)=PMMN(IWID2) | |
9486 | CALL PYOFSH(5,KFA,KFLW1,KFLW2,PMTOT,P(N+IWID1,5), | |
9487 | & P(N+IWID2,5)) | |
9488 | CKIN(49)=0D0 | |
9489 | CKIN(50)=0D0 | |
9490 | ENDIF | |
9491 | IF(MINT(51).EQ.1) RETURN | |
9492 | ENDIF | |
9493 | ||
9494 | C...Begin fill decay products, with colour flow for coloured objects. | |
9495 | MSTU10=MSTU(10) | |
9496 | MSTU(10)=1 | |
9497 | MSTU(19)=1 | |
9498 | ||
9499 | CMRENNA++ | |
9500 | C...1) Three-body decays of SUSY particles (plus special case top). | |
9501 | IF(KFL3(JT).NE.0) THEN | |
9502 | DO 200 I=N+1,N+3 | |
9503 | DO 190 J=1,5 | |
9504 | K(I,J)=0 | |
9505 | V(I,J)=0D0 | |
9506 | 190 CONTINUE | |
9507 | 200 CONTINUE | |
9508 | XM(1)=P(N+1,5) | |
9509 | XM(2)=P(N+2,5) | |
9510 | XM(3)=P(N+3,5) | |
9511 | XM(5)=P(ID,5) | |
9512 | CALL PYTBDY(XM) | |
9513 | K(N+1,1)=1 | |
9514 | K(N+1,2)=KFL1(JT) | |
9515 | K(N+2,1)=1 | |
9516 | K(N+2,2)=KFL2(JT) | |
9517 | K(N+3,1)=1 | |
9518 | K(N+3,2)=KFL3(JT) | |
9519 | ||
9520 | C...Set colour flow for t -> W + b + Z. | |
9521 | IF(KFA.EQ.6) THEN | |
9522 | K(N+2,1)=3 | |
9523 | ISID=4 | |
9524 | IF(KCQM(JT).EQ.-1) ISID=5 | |
9525 | IDAU=N+2 | |
9526 | K(ID,ISID)=K(ID,ISID)+IDAU | |
9527 | K(IDAU,ISID)=MSTU(5)*ID | |
9528 | ||
9529 | C...Set colour flow in three-body decays - programmed as special cases. | |
9530 | ELSEIF(KFC2A.LE.6) THEN | |
9531 | K(N+2,1)=3 | |
9532 | K(N+3,1)=3 | |
9533 | ISID=4 | |
9534 | IF(KFL2(JT).LT.0) ISID=5 | |
9535 | K(N+2,ISID)=MSTU(5)*(N+3) | |
9536 | K(N+3,9-ISID)=MSTU(5)*(N+2) | |
9537 | ENDIF | |
9538 | IF(KFL1(JT).EQ.KSUSY1+21) THEN | |
9539 | K(N+1,1)=3 | |
9540 | K(N+2,1)=3 | |
9541 | K(N+3,1)=3 | |
9542 | ISID=4 | |
9543 | IF(KFL2(JT).LT.0) ISID=5 | |
9544 | K(N+1,ISID)=MSTU(5)*(N+2) | |
9545 | K(N+1,9-ISID)=MSTU(5)*(N+3) | |
9546 | K(N+2,ISID)=MSTU(5)*(N+1) | |
9547 | K(N+3,9-ISID)=MSTU(5)*(N+1) | |
9548 | ENDIF | |
9549 | IF(KFA.EQ.KSUSY1+21) THEN | |
9550 | K(N+2,1)=3 | |
9551 | K(N+3,1)=3 | |
9552 | ISID=4 | |
9553 | IF(KFL2(JT).LT.0) ISID=5 | |
9554 | K(ID,ISID)=K(ID,ISID)+(N+2) | |
9555 | K(ID,9-ISID)=K(ID,9-ISID)+(N+3) | |
9556 | K(N+2,ISID)=MSTU(5)*ID | |
9557 | K(N+3,9-ISID)=MSTU(5)*ID | |
9558 | ENDIF | |
9559 | N=N+3 | |
9560 | CMRENNA-- | |
9561 | ||
9562 | C...2) Everything else two-body decay. | |
9563 | ELSE | |
9564 | CALL PY2ENT(N+1,KFL1(JT),KFL2(JT),P(ID,5)) | |
9565 | C...First set colour flow as if mother colour singlet. | |
9566 | IF(KCQ1(JT).NE.0) THEN | |
9567 | K(N-1,1)=3 | |
9568 | IF(KCQ1(JT).NE.-1) K(N-1,4)=MSTU(5)*N | |
9569 | IF(KCQ1(JT).NE.1) K(N-1,5)=MSTU(5)*N | |
9570 | ENDIF | |
9571 | IF(KCQ2(JT).NE.0) THEN | |
9572 | K(N,1)=3 | |
9573 | IF(KCQ2(JT).NE.-1) K(N,4)=MSTU(5)*(N-1) | |
9574 | IF(KCQ2(JT).NE.1) K(N,5)=MSTU(5)*(N-1) | |
9575 | ENDIF | |
9576 | C...Then redirect colour flow if mother (anti)triplet. | |
9577 | IF(KCQM(JT).EQ.0) THEN | |
9578 | ELSEIF(KCQM(JT).NE.2) THEN | |
9579 | ISID=4 | |
9580 | IF(KCQM(JT).EQ.-1) ISID=5 | |
9581 | IDAU=N-1 | |
9582 | IF(KCQ1(JT).EQ.0.OR.KCQ2(JT).EQ.2) IDAU=N | |
9583 | K(ID,ISID)=K(ID,ISID)+IDAU | |
9584 | K(IDAU,ISID)=MSTU(5)*ID | |
9585 | C...Then redirect colour flow if mother octet. | |
9586 | ELSEIF(KCQ1(JT).EQ.0.OR.KCQ2(JT).EQ.0) THEN | |
9587 | IDAU=N-1 | |
9588 | IF(KCQ1(JT).EQ.0) IDAU=N | |
9589 | K(ID,4)=K(ID,4)+IDAU | |
9590 | K(ID,5)=K(ID,5)+IDAU | |
9591 | K(IDAU,4)=MSTU(5)*ID | |
9592 | K(IDAU,5)=MSTU(5)*ID | |
9593 | ELSE | |
9594 | ISID=4 | |
9595 | IF(KCQ1(JT).EQ.-1) ISID=5 | |
9596 | IF(KCQ1(JT).EQ.2) ISID=INT(4.5D0+PYR(0)) | |
9597 | K(ID,ISID)=K(ID,ISID)+(N-1) | |
9598 | K(ID,9-ISID)=K(ID,9-ISID)+N | |
9599 | K(N-1,ISID)=MSTU(5)*ID | |
9600 | K(N,9-ISID)=MSTU(5)*ID | |
9601 | ENDIF | |
9602 | ENDIF | |
9603 | ||
9604 | C...End loop over resonances for daughter flavour and mass selection. | |
9605 | MSTU(10)=MSTU10 | |
9606 | 210 IF(MWID(KCA).NE.0.AND.(KFL1(JT).EQ.0.OR.KFL3(JT).NE.0)) | |
9607 | & NINH=NINH+1 | |
9608 | IF(IRES.GT.0.AND.MWID(KCA).NE.0.AND.KFL1(JT).EQ.0) THEN | |
9609 | WRITE(CODE,'(I9)') K(ID,2) | |
9610 | WRITE(MASS,'(F9.3)') P(ID,5) | |
9611 | CALL PYERRM(3,'(PYRESD:) Failed to decay particle'// | |
9612 | & CODE//' with mass'//MASS) | |
9613 | MINT(51)=1 | |
9614 | RETURN | |
9615 | ENDIF | |
9616 | 220 CONTINUE | |
9617 | ||
9618 | C...Check for allowed combinations. Skip if no decays. | |
9619 | IF(JTMAX.EQ.1) THEN | |
9620 | IF(KDCY(1).EQ.0) GOTO 560 | |
9621 | ELSEIF(JTMAX.EQ.2) THEN | |
9622 | IF(KDCY(1).EQ.0.AND.KDCY(2).EQ.0) GOTO 560 | |
9623 | IF(KEQL(1).EQ.4.AND.KEQL(2).EQ.4) GOTO 140 | |
9624 | IF(KEQL(1).EQ.5.AND.KEQL(2).EQ.5) GOTO 140 | |
9625 | ELSEIF(JTMAX.EQ.3) THEN | |
9626 | IF(KDCY(1).EQ.0.AND.KDCY(2).EQ.0.AND.KDCY(3).EQ.0) GOTO 560 | |
9627 | IF(KEQL(1).EQ.4.AND.KEQL(2).EQ.4) GOTO 140 | |
9628 | IF(KEQL(1).EQ.4.AND.KEQL(3).EQ.4) GOTO 140 | |
9629 | IF(KEQL(2).EQ.4.AND.KEQL(3).EQ.4) GOTO 140 | |
9630 | IF(KEQL(1).EQ.5.AND.KEQL(2).EQ.5) GOTO 140 | |
9631 | IF(KEQL(1).EQ.5.AND.KEQL(3).EQ.5) GOTO 140 | |
9632 | IF(KEQL(2).EQ.5.AND.KEQL(3).EQ.5) GOTO 140 | |
9633 | ENDIF | |
9634 | ||
9635 | C...Special case: matrix element option for Z0 decay to quarks. | |
9636 | IF(MSTP(48).EQ.1.AND.ISUB.EQ.1.AND.JTMAX.EQ.1.AND. | |
9637 | &IABS(MINT(11)).EQ.11.AND.IABS(KFL1(1)).LE.5) THEN | |
9638 | ||
9639 | C...Check consistency of MSTJ options set. | |
9640 | IF(MSTJ(109).EQ.2.AND.MSTJ(110).NE.1) THEN | |
9641 | CALL PYERRM(6, | |
9642 | & '(PYRESD:) MSTJ(109) value requires MSTJ(110) = 1') | |
9643 | MSTJ(110)=1 | |
9644 | ENDIF | |
9645 | IF(MSTJ(109).EQ.2.AND.MSTJ(111).NE.0) THEN | |
9646 | CALL PYERRM(6, | |
9647 | & '(PYRESD) MSTJ(109) value requires MSTJ(111) = 0') | |
9648 | MSTJ(111)=0 | |
9649 | ENDIF | |
9650 | ||
9651 | C...Select alpha_strong behaviour. | |
9652 | MST111=MSTU(111) | |
9653 | PAR112=PARU(112) | |
9654 | MSTU(111)=MSTJ(108) | |
9655 | IF(MSTJ(108).EQ.2.AND.(MSTJ(101).EQ.0.OR.MSTJ(101).EQ.1)) | |
9656 | & MSTU(111)=1 | |
9657 | PARU(112)=PARJ(121) | |
9658 | IF(MSTU(111).EQ.2) PARU(112)=PARJ(122) | |
9659 | ||
9660 | C...Find axial fraction in total cross section for scalar gluon model. | |
9661 | PARJ(171)=0D0 | |
9662 | IF((IABS(MSTJ(101)).EQ.1.AND.MSTJ(109).EQ.1).OR. | |
9663 | & (MSTJ(101).EQ.5.AND.MSTJ(49).EQ.1)) THEN | |
9664 | POLL=1D0-PARJ(131)*PARJ(132) | |
9665 | SFF=1D0/(16D0*XW*XW1) | |
9666 | SFW=P(ID,5)**4/((P(ID,5)**2-PARJ(123)**2)**2+ | |
9667 | & (PARJ(123)*PARJ(124))**2) | |
9668 | SFI=SFW*(1D0-(PARJ(123)/P(ID,5))**2) | |
9669 | VE=4D0*XW-1D0 | |
9670 | HF1I=SFI*SFF*(VE*POLL+PARJ(132)-PARJ(131)) | |
9671 | HF1W=SFW*SFF**2*((VE**2+1D0)*POLL+2D0*VE* | |
9672 | & (PARJ(132)-PARJ(131))) | |
9673 | KFLC=IABS(KFL1(1)) | |
9674 | PMQ=PYMASS(KFLC) | |
9675 | QF=KCHG(KFLC,1)/3D0 | |
9676 | VQ=1D0 | |
9677 | IF(MOD(MSTJ(103),2).EQ.1) VQ=SQRT(MAX(0D0, | |
9678 | & 1D0-(2D0*PMQ/P(ID,5))**2)) | |
9679 | VF=SIGN(1D0,QF)-4D0*QF*XW | |
9680 | RFV=0.5D0*VQ*(3D0-VQ**2)*(QF**2*POLL-2D0*QF*VF*HF1I+ | |
9681 | & VF**2*HF1W)+VQ**3*HF1W | |
9682 | IF(RFV.GT.0D0) PARJ(171)=MIN(1D0,VQ**3*HF1W/RFV) | |
9683 | ENDIF | |
9684 | ||
9685 | C...Choice of jet configuration. | |
9686 | CALL PYXJET(P(ID,5),NJET,CUT) | |
9687 | KFLC=IABS(KFL1(1)) | |
9688 | KFLN=21 | |
9689 | IF(NJET.EQ.4) THEN | |
9690 | CALL PYX4JT(NJET,CUT,KFLC,P(ID,5),KFLN,X1,X2,X4,X12,X14) | |
9691 | ELSEIF(NJET.EQ.3) THEN | |
9692 | CALL PYX3JT(NJET,CUT,KFLC,P(ID,5),X1,X3) | |
9693 | ELSE | |
9694 | MSTJ(120)=1 | |
9695 | ENDIF | |
9696 | ||
9697 | C...Fill jet configuration; return if incorrect kinematics. | |
9698 | NC=N-2 | |
9699 | IF(NJET.EQ.2.AND.MSTJ(101).NE.5) THEN | |
9700 | CALL PY2ENT(NC+1,KFLC,-KFLC,P(ID,5)) | |
9701 | ELSEIF(NJET.EQ.2) THEN | |
9702 | CALL PY2ENT(-(NC+1),KFLC,-KFLC,P(ID,5)) | |
9703 | ELSEIF(NJET.EQ.3) THEN | |
9704 | CALL PY3ENT(NC+1,KFLC,21,-KFLC,P(ID,5),X1,X3) | |
9705 | ELSEIF(KFLN.EQ.21) THEN | |
9706 | CALL PY4ENT(NC+1,KFLC,KFLN,KFLN,-KFLC,P(ID,5),X1,X2,X4, | |
9707 | & X12,X14) | |
9708 | ELSE | |
9709 | CALL PY4ENT(NC+1,KFLC,-KFLN,KFLN,-KFLC,P(ID,5),X1,X2,X4, | |
9710 | & X12,X14) | |
9711 | ENDIF | |
9712 | IF(MSTU(24).NE.0) THEN | |
9713 | MINT(51)=1 | |
9714 | MSTU(111)=MST111 | |
9715 | PARU(112)=PAR112 | |
9716 | RETURN | |
9717 | ENDIF | |
9718 | ||
9719 | C...Angular orientation according to matrix element. | |
9720 | IF(MSTJ(106).EQ.1) THEN | |
9721 | CALL PYXDIF(NC,NJET,KFLC,P(ID,5),CHI,THE,PHI) | |
9722 | IF(MINT(11).LT.0) THE=PARU(1)-THE | |
9723 | CTHE(1)=COS(THE) | |
9724 | CALL PYROBO(NC+1,N,0D0,CHI,0D0,0D0,0D0) | |
9725 | CALL PYROBO(NC+1,N,THE,PHI,0D0,0D0,0D0) | |
9726 | ENDIF | |
9727 | ||
9728 | C...Boost partons to Z0 rest frame. | |
9729 | CALL PYROBO(NC+1,N,0D0,0D0,P(ID,1)/P(ID,4), | |
9730 | & P(ID,2)/P(ID,4),P(ID,3)/P(ID,4)) | |
9731 | ||
9732 | C...Mark decayed resonance and add documentation lines, | |
9733 | K(ID,1)=K(ID,1)+10 | |
9734 | IDOC=MINT(83)+MINT(4) | |
9735 | DO 240 I=NC+1,N | |
9736 | I1=MINT(83)+MINT(4)+1 | |
9737 | K(I,3)=I1 | |
9738 | IF(MSTP(128).GE.1) K(I,3)=ID | |
9739 | IF(MSTP(128).LE.1.AND.MINT(4).LT.MSTP(126)) THEN | |
9740 | MINT(4)=MINT(4)+1 | |
9741 | K(I1,1)=21 | |
9742 | K(I1,2)=K(I,2) | |
9743 | K(I1,3)=IREF(IP,4) | |
9744 | DO 230 J=1,5 | |
9745 | P(I1,J)=P(I,J) | |
9746 | 230 CONTINUE | |
9747 | ENDIF | |
9748 | 240 CONTINUE | |
9749 | ||
9750 | C...Generate parton shower. | |
9751 | IF(MSTJ(101).EQ.5) CALL PYSHOW(N-1,N,P(ID,5)) | |
9752 | ||
9753 | C... End special case for Z0: skip ahead. | |
9754 | MSTU(111)=MST111 | |
9755 | PARU(112)=PAR112 | |
9756 | GOTO 550 | |
9757 | ENDIF | |
9758 | ||
9759 | C...Order incoming partons and outgoing resonances. | |
9760 | IF(JTMAX.EQ.2.AND.MSTP(47).GE.1.AND.NINH.EQ.0) THEN | |
9761 | ILIN(1)=MINT(84)+1 | |
9762 | IF(K(MINT(84)+1,2).GT.0) ILIN(1)=MINT(84)+2 | |
9763 | IF(K(ILIN(1),2).EQ.21) ILIN(1)=2*MINT(84)+3-ILIN(1) | |
9764 | ILIN(2)=2*MINT(84)+3-ILIN(1) | |
9765 | IMIN=1 | |
9766 | IF(IREF(IP,7).EQ.25.OR.IREF(IP,7).EQ.35.OR.IREF(IP,7) | |
9767 | & .EQ.36) IMIN=3 | |
9768 | IMAX=2 | |
9769 | IORD=1 | |
9770 | IF(K(IREF(IP,1),2).EQ.23) IORD=2 | |
9771 | IF(K(IREF(IP,1),2).EQ.24.AND.K(IREF(IP,2),2).EQ.-24) IORD=2 | |
9772 | IAKIPD=IABS(K(IREF(IP,IORD),2)) | |
9773 | IF(IAKIPD.EQ.25.OR.IAKIPD.EQ.35.OR.IAKIPD.EQ.36) IORD=3-IORD | |
9774 | IF(KDCY(IORD).EQ.0) IORD=3-IORD | |
9775 | ||
9776 | C...Order decay products of resonances. | |
9777 | DO 250 JT=IORD,3-IORD,3-2*IORD | |
9778 | IF(KDCY(JT).EQ.0) THEN | |
9779 | ILIN(IMAX+1)=NSD(JT) | |
9780 | IMAX=IMAX+1 | |
9781 | ELSEIF(K(NSD(JT)+1,2).GT.0) THEN | |
9782 | ILIN(IMAX+1)=N+2*JT-1 | |
9783 | ILIN(IMAX+2)=N+2*JT | |
9784 | IMAX=IMAX+2 | |
9785 | K(N+2*JT-1,2)=K(NSD(JT)+1,2) | |
9786 | K(N+2*JT,2)=K(NSD(JT)+2,2) | |
9787 | ELSE | |
9788 | ILIN(IMAX+1)=N+2*JT | |
9789 | ILIN(IMAX+2)=N+2*JT-1 | |
9790 | IMAX=IMAX+2 | |
9791 | K(N+2*JT-1,2)=K(NSD(JT)+1,2) | |
9792 | K(N+2*JT,2)=K(NSD(JT)+2,2) | |
9793 | ENDIF | |
9794 | 250 CONTINUE | |
9795 | ||
9796 | C...Find charge, isospin, left- and righthanded couplings. | |
9797 | DO 270 I=IMIN,IMAX | |
9798 | DO 260 J=1,4 | |
9799 | COUP(I,J)=0D0 | |
9800 | 260 CONTINUE | |
9801 | KFA=IABS(K(ILIN(I),2)) | |
9802 | IF(KFA.EQ.0.OR.KFA.GT.20) GOTO 270 | |
9803 | COUP(I,1)=KCHG(KFA,1)/3D0 | |
9804 | COUP(I,2)=(-1)**MOD(KFA,2) | |
9805 | COUP(I,4)=-2D0*COUP(I,1)*XWV | |
9806 | COUP(I,3)=COUP(I,2)+COUP(I,4) | |
9807 | 270 CONTINUE | |
9808 | ||
9809 | C...Full propagator dependence and flavour correlations for 2 gamma*/Z. | |
9810 | IF(ISUB.EQ.22) THEN | |
9811 | DO 300 I=3,5,2 | |
9812 | I1=IORD | |
9813 | IF(I.EQ.5) I1=3-IORD | |
9814 | DO 290 J1=1,2 | |
9815 | DO 280 J2=1,2 | |
9816 | CORL(I/2,J1,J2)=COUP(1,1)**2*HGZ(I1,1)*COUP(I,1)**2/ | |
9817 | & 16D0+COUP(1,1)*COUP(1,J1+2)*HGZ(I1,2)*COUP(I,1)* | |
9818 | & COUP(I,J2+2)/4D0+COUP(1,J1+2)**2*HGZ(I1,3)* | |
9819 | & COUP(I,J2+2)**2 | |
9820 | 280 CONTINUE | |
9821 | 290 CONTINUE | |
9822 | 300 CONTINUE | |
9823 | COWT12=(CORL(1,1,1)+CORL(1,1,2))*(CORL(2,1,1)+CORL(2,1,2))+ | |
9824 | & (CORL(1,2,1)+CORL(1,2,2))*(CORL(2,2,1)+CORL(2,2,2)) | |
9825 | COMX12=(CORL(1,1,1)+CORL(1,1,2)+CORL(1,2,1)+CORL(1,2,2))* | |
9826 | & (CORL(2,1,1)+CORL(2,1,2)+CORL(2,2,1)+CORL(2,2,2)) | |
9827 | IF(COWT12.LT.PYR(0)*COMX12) GOTO 140 | |
9828 | ENDIF | |
9829 | ENDIF | |
9830 | ||
9831 | C...Select angular orientation type - Z'/W' only. | |
9832 | MZPWP=0 | |
9833 | IF(ISUB.EQ.141) THEN | |
9834 | IF(PYR(0).LT.PARU(130)) MZPWP=1 | |
9835 | IF(IP.EQ.2) THEN | |
9836 | IF(IABS(K(IREF(2,1),2)).EQ.37) MZPWP=2 | |
9837 | IAKIR=IABS(K(IREF(2,2),2)) | |
9838 | IF(IAKIR.EQ.25.OR.IAKIR.EQ.35.OR.IAKIR.EQ.36) MZPWP=2 | |
9839 | ENDIF | |
9840 | IF(IP.GE.3) MZPWP=2 | |
9841 | ELSEIF(ISUB.EQ.142) THEN | |
9842 | IF(PYR(0).LT.PARU(136)) MZPWP=1 | |
9843 | IF(IP.EQ.2) THEN | |
9844 | IAKIR=IABS(K(IREF(2,2),2)) | |
9845 | IF(IAKIR.EQ.25.OR.IAKIR.EQ.35.OR.IAKIR.EQ.36) MZPWP=2 | |
9846 | ENDIF | |
9847 | IF(IP.GE.3) MZPWP=2 | |
9848 | ENDIF | |
9849 | ||
9850 | C...Select random angles (begin of weighting procedure). | |
9851 | 310 DO 320 JT=1,JTMAX | |
9852 | IF(KDCY(JT).EQ.0) GOTO 320 | |
9853 | IF(JTMAX.EQ.1.AND.ISUB.NE.0) THEN | |
9854 | CTHE(JT)=VINT(13)+(VINT(33)-VINT(13)+VINT(34)-VINT(14))*PYR(0) | |
9855 | IF(CTHE(JT).GT.VINT(33)) CTHE(JT)=CTHE(JT)+VINT(14)-VINT(33) | |
9856 | PHI(JT)=VINT(24) | |
9857 | ELSE | |
9858 | CTHE(JT)=2D0*PYR(0)-1D0 | |
9859 | PHI(JT)=PARU(2)*PYR(0) | |
9860 | ENDIF | |
9861 | 320 CONTINUE | |
9862 | ||
9863 | IF(JTMAX.EQ.2.AND.MSTP(47).GE.1.AND.NINH.EQ.0) THEN | |
9864 | C...Construct massless four-vectors. | |
9865 | DO 340 I=N+1,N+4 | |
9866 | K(I,1)=1 | |
9867 | DO 330 J=1,5 | |
9868 | P(I,J)=0D0 | |
9869 | V(I,J)=0D0 | |
9870 | 330 CONTINUE | |
9871 | 340 CONTINUE | |
9872 | DO 350 JT=1,JTMAX | |
9873 | IF(KDCY(JT).EQ.0) GOTO 350 | |
9874 | ID=IREF(IP,JT) | |
9875 | P(N+2*JT-1,3)=0.5D0*P(ID,5) | |
9876 | P(N+2*JT-1,4)=0.5D0*P(ID,5) | |
9877 | P(N+2*JT,3)=-0.5D0*P(ID,5) | |
9878 | P(N+2*JT,4)=0.5D0*P(ID,5) | |
9879 | CALL PYROBO(N+2*JT-1,N+2*JT,ACOS(CTHE(JT)),PHI(JT), | |
9880 | & P(ID,1)/P(ID,4),P(ID,2)/P(ID,4),P(ID,3)/P(ID,4)) | |
9881 | 350 CONTINUE | |
9882 | ||
9883 | C...Store incoming and outgoing momenta, with random rotation to | |
9884 | C...avoid accidental zeroes in HA expressions. | |
9885 | DO 370 I=1,IMAX | |
9886 | K(N+4+I,1)=1 | |
9887 | P(N+4+I,4)=SQRT(P(ILIN(I),1)**2+P(ILIN(I),2)**2+ | |
9888 | & P(ILIN(I),3)**2+P(ILIN(I),5)**2) | |
9889 | P(N+4+I,5)=P(ILIN(I),5) | |
9890 | DO 360 J=1,3 | |
9891 | P(N+4+I,J)=P(ILIN(I),J) | |
9892 | 360 CONTINUE | |
9893 | 370 CONTINUE | |
9894 | 380 THERR=ACOS(2D0*PYR(0)-1D0) | |
9895 | PHIRR=PARU(2)*PYR(0) | |
9896 | CALL PYROBO(N+5,N+4+IMAX,THERR,PHIRR,0D0,0D0,0D0) | |
9897 | DO 400 I=1,IMAX | |
9898 | IF(P(N+4+I,1)**2+P(N+4+I,2)**2.LT.1D-4*P(N+4+I,4)**2) GOTO 380 | |
9899 | DO 390 J=1,4 | |
9900 | PK(I,J)=P(N+4+I,J) | |
9901 | 390 CONTINUE | |
9902 | 400 CONTINUE | |
9903 | ||
9904 | C...Calculate internal products. | |
9905 | IF(ISUB.EQ.22.OR.ISUB.EQ.23.OR.ISUB.EQ.25.OR.ISUB.EQ.141.OR. | |
9906 | & ISUB.EQ.142) THEN | |
9907 | DO 420 I1=IMIN,IMAX-1 | |
9908 | DO 410 I2=I1+1,IMAX | |
9909 | HA(I1,I2)=SNGL(SQRT((PK(I1,4)-PK(I1,3))*(PK(I2,4)+ | |
9910 | & PK(I2,3))/(1D-20+PK(I1,1)**2+PK(I1,2)**2)))* | |
9911 | & CMPLX(SNGL(PK(I1,1)),SNGL(PK(I1,2)))- | |
9912 | & SNGL(SQRT((PK(I1,4)+PK(I1,3))*(PK(I2,4)-PK(I2,3))/ | |
9913 | & (1D-20+PK(I2,1)**2+PK(I2,2)**2)))* | |
9914 | & CMPLX(SNGL(PK(I2,1)),SNGL(PK(I2,2))) | |
9915 | HC(I1,I2)=CONJG(HA(I1,I2)) | |
9916 | IF(I1.LE.2) HA(I1,I2)=CMPLX(0.,1.)*HA(I1,I2) | |
9917 | IF(I1.LE.2) HC(I1,I2)=CMPLX(0.,1.)*HC(I1,I2) | |
9918 | HA(I2,I1)=-HA(I1,I2) | |
9919 | HC(I2,I1)=-HC(I1,I2) | |
9920 | 410 CONTINUE | |
9921 | 420 CONTINUE | |
9922 | ENDIF | |
9923 | DO 440 I=1,2 | |
9924 | DO 430 J=1,4 | |
9925 | PK(I,J)=-PK(I,J) | |
9926 | 430 CONTINUE | |
9927 | 440 CONTINUE | |
9928 | DO 460 I1=IMIN,IMAX-1 | |
9929 | DO 450 I2=I1+1,IMAX | |
9930 | PKK(I1,I2)=2D0*(PK(I1,4)*PK(I2,4)-PK(I1,1)*PK(I2,1)- | |
9931 | & PK(I1,2)*PK(I2,2)-PK(I1,3)*PK(I2,3)) | |
9932 | PKK(I2,I1)=PKK(I1,I2) | |
9933 | 450 CONTINUE | |
9934 | 460 CONTINUE | |
9935 | ENDIF | |
9936 | ||
9937 | KFAGM=IABS(IREF(IP,7)) | |
9938 | IF(MSTP(47).LE.0.OR.NINH.NE.0) THEN | |
9939 | C...Isotropic decay selected by user. | |
9940 | WT=1D0 | |
9941 | WTMAX=1D0 | |
9942 | ||
9943 | ELSEIF(JTMAX.EQ.3) THEN | |
9944 | C...Isotropic decay when three mother particles. | |
9945 | WT=1D0 | |
9946 | WTMAX=1D0 | |
9947 | ||
9948 | ELSEIF(IT4.GE.1) THEN | |
9949 | C... Isotropic decay t -> b + W etc for 4th generation q and l. | |
9950 | WT=1D0 | |
9951 | WTMAX=1D0 | |
9952 | ||
9953 | ELSEIF(IREF(IP,7).EQ.25.OR.IREF(IP,7).EQ.35.OR. | |
9954 | & IREF(IP,7).EQ.36) THEN | |
9955 | C...Angular weight for h0 -> Z0 + Z0 or W+ + W- -> 4 quarks/leptons. | |
9956 | IF(IP.EQ.1) WTMAX=SH**2 | |
9957 | IF(IP.GE.2) WTMAX=P(IREF(IP,8),5)**4 | |
9958 | KFA=IABS(K(IREF(IP,1),2)) | |
9959 | IF(KFA.EQ.23) THEN | |
9960 | KFLF1A=IABS(KFL1(1)) | |
9961 | EF1=KCHG(KFLF1A,1)/3D0 | |
9962 | AF1=SIGN(1D0,EF1+0.1D0) | |
9963 | VF1=AF1-4D0*EF1*XWV | |
9964 | KFLF2A=IABS(KFL1(2)) | |
9965 | EF2=KCHG(KFLF2A,1)/3D0 | |
9966 | AF2=SIGN(1D0,EF2+0.1D0) | |
9967 | VF2=AF2-4D0*EF2*XWV | |
9968 | VA12AS=4D0*VF1*AF1*VF2*AF2/((VF1**2+AF1**2)*(VF2**2+AF2**2)) | |
9969 | WT=8D0*(1D0+VA12AS)*PKK(3,5)*PKK(4,6)+ | |
9970 | & 8D0*(1D0-VA12AS)*PKK(3,6)*PKK(4,5) | |
9971 | ELSEIF(KFA.EQ.24) THEN | |
9972 | WT=16D0*PKK(3,5)*PKK(4,6) | |
9973 | ELSE | |
9974 | WT=WTMAX | |
9975 | ENDIF | |
9976 | ||
9977 | ELSEIF((KFAGM.EQ.6.OR.KFAGM.EQ.7.OR.KFAGM.EQ.8.OR. | |
9978 | & KFAGM.EQ.17.OR.KFAGM.EQ.18).AND.IABS(K(IREF(IP,1),2)).EQ.24) | |
9979 | & THEN | |
9980 | C...Angular correlation in f -> f' + W -> f' + 2 quarks/leptons. | |
9981 | I1=IREF(IP,8) | |
9982 | IF(MOD(KFAGM,2).EQ.0) THEN | |
9983 | I2=N+1 | |
9984 | I3=N+2 | |
9985 | ELSE | |
9986 | I2=N+2 | |
9987 | I3=N+1 | |
9988 | ENDIF | |
9989 | I4=IREF(IP,2) | |
9990 | WT=(P(I1,4)*P(I2,4)-P(I1,1)*P(I2,1)-P(I1,2)*P(I2,2)- | |
9991 | & P(I1,3)*P(I2,3))*(P(I3,4)*P(I4,4)-P(I3,1)*P(I4,1)- | |
9992 | & P(I3,2)*P(I4,2)-P(I3,3)*P(I4,3)) | |
9993 | WTMAX=(P(I1,5)**4-P(IREF(IP,1),5)**4)/8D0 | |
9994 | ||
9995 | ELSEIF(ISUB.EQ.1) THEN | |
9996 | C...Angular weight for gamma*/Z0 -> 2 quarks/leptons. | |
9997 | EI=KCHG(IABS(MINT(15)),1)/3D0 | |
9998 | AI=SIGN(1D0,EI+0.1D0) | |
9999 | VI=AI-4D0*EI*XWV | |
10000 | EF=KCHG(IABS(KFL1(1)),1)/3D0 | |
10001 | AF=SIGN(1D0,EF+0.1D0) | |
10002 | VF=AF-4D0*EF*XWV | |
10003 | RMF=MIN(1D0,4D0*PMAS(IABS(KFL1(1)),1)**2/SH) | |
10004 | WT1=EI**2*VINT(111)*EF**2+EI*VI*VINT(112)*EF*VF+ | |
10005 | & (VI**2+AI**2)*VINT(114)*(VF**2+(1D0-RMF)*AF**2) | |
10006 | WT2=RMF*(EI**2*VINT(111)*EF**2+EI*VI*VINT(112)*EF*VF+ | |
10007 | & (VI**2+AI**2)*VINT(114)*VF**2) | |
10008 | WT3=SQRT(1D0-RMF)*(EI*AI*VINT(112)*EF*AF+ | |
10009 | & 4D0*VI*AI*VINT(114)*VF*AF) | |
10010 | WT=WT1*(1D0+CTHE(1)**2)+WT2*(1D0-CTHE(1)**2)+ | |
10011 | & 2D0*WT3*CTHE(1)*ISIGN(1,MINT(15)*KFL1(1)) | |
10012 | WTMAX=2D0*(WT1+ABS(WT3)) | |
10013 | ||
10014 | ELSEIF(ISUB.EQ.2) THEN | |
10015 | C...Angular weight for W+/- -> 2 quarks/leptons. | |
10016 | WT=(1D0+CTHE(1)*ISIGN(1,MINT(15)*KFL1(1)))**2 | |
10017 | WTMAX=4D0 | |
10018 | ||
10019 | ELSEIF(ISUB.EQ.15.OR.ISUB.EQ.19) THEN | |
10020 | C...Angular weight for f + fbar -> gluon/gamma + (gamma*/Z0) -> | |
10021 | C...-> gluon/gamma + 2 quarks/leptons. | |
10022 | CLILF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10023 | & COUP(1,1)*COUP(1,3)*HGZ(2,2)*COUP(3,1)*COUP(3,3)/4D0+ | |
10024 | & COUP(1,3)**2*HGZ(2,3)*COUP(3,3)**2 | |
10025 | CLIRF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10026 | & COUP(1,1)*COUP(1,3)*HGZ(2,2)*COUP(3,1)*COUP(3,4)/4D0+ | |
10027 | & COUP(1,3)**2*HGZ(2,3)*COUP(3,4)**2 | |
10028 | CRILF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10029 | & COUP(1,1)*COUP(1,4)*HGZ(2,2)*COUP(3,1)*COUP(3,3)/4D0+ | |
10030 | & COUP(1,4)**2*HGZ(2,3)*COUP(3,3)**2 | |
10031 | CRIRF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10032 | & COUP(1,1)*COUP(1,4)*HGZ(2,2)*COUP(3,1)*COUP(3,4)/4D0+ | |
10033 | & COUP(1,4)**2*HGZ(2,3)*COUP(3,4)**2 | |
10034 | WT=(CLILF+CRIRF)*(PKK(1,3)**2+PKK(2,4)**2)+ | |
10035 | & (CLIRF+CRILF)*(PKK(1,4)**2+PKK(2,3)**2) | |
10036 | WTMAX=(CLILF+CLIRF+CRILF+CRIRF)* | |
10037 | & ((PKK(1,3)+PKK(1,4))**2+(PKK(2,3)+PKK(2,4))**2) | |
10038 | ||
10039 | ELSEIF(ISUB.EQ.16.OR.ISUB.EQ.20) THEN | |
10040 | C...Angular weight for f + fbar' -> gluon/gamma + W+/- -> | |
10041 | C...-> gluon/gamma + 2 quarks/leptons. | |
10042 | WT=PKK(1,3)**2+PKK(2,4)**2 | |
10043 | WTMAX=(PKK(1,3)+PKK(1,4))**2+(PKK(2,3)+PKK(2,4))**2 | |
10044 | ||
10045 | ELSEIF(ISUB.EQ.22) THEN | |
10046 | C...Angular weight for f + fbar -> Z0 + Z0 -> 4 quarks/leptons. | |
10047 | S34=P(IREF(IP,IORD),5)**2 | |
10048 | S56=P(IREF(IP,3-IORD),5)**2 | |
10049 | TI=PKK(1,3)+PKK(1,4)+S34 | |
10050 | UI=PKK(1,5)+PKK(1,6)+S56 | |
10051 | TIR=REAL(TI) | |
10052 | UIR=REAL(UI) | |
10053 | FGK135=ABS(FGK(1,2,3,4,5,6)/TIR+FGK(1,2,5,6,3,4)/UIR)**2 | |
10054 | FGK145=ABS(FGK(1,2,4,3,5,6)/TIR+FGK(1,2,5,6,4,3)/UIR)**2 | |
10055 | FGK136=ABS(FGK(1,2,3,4,6,5)/TIR+FGK(1,2,6,5,3,4)/UIR)**2 | |
10056 | FGK146=ABS(FGK(1,2,4,3,6,5)/TIR+FGK(1,2,6,5,4,3)/UIR)**2 | |
10057 | FGK253=ABS(FGK(2,1,5,6,3,4)/TIR+FGK(2,1,3,4,5,6)/UIR)**2 | |
10058 | FGK263=ABS(FGK(2,1,6,5,3,4)/TIR+FGK(2,1,3,4,6,5)/UIR)**2 | |
10059 | FGK254=ABS(FGK(2,1,5,6,4,3)/TIR+FGK(2,1,4,3,5,6)/UIR)**2 | |
10060 | FGK264=ABS(FGK(2,1,6,5,4,3)/TIR+FGK(2,1,4,3,6,5)/UIR)**2 | |
10061 | WT= | |
10062 | & CORL(1,1,1)*CORL(2,1,1)*FGK135+CORL(1,1,2)*CORL(2,1,1)*FGK145+ | |
10063 | & CORL(1,1,1)*CORL(2,1,2)*FGK136+CORL(1,1,2)*CORL(2,1,2)*FGK146+ | |
10064 | & CORL(1,2,1)*CORL(2,2,1)*FGK253+CORL(1,2,2)*CORL(2,2,1)*FGK263+ | |
10065 | & CORL(1,2,1)*CORL(2,2,2)*FGK254+CORL(1,2,2)*CORL(2,2,2)*FGK264 | |
10066 | WTMAX=16D0*((CORL(1,1,1)+CORL(1,1,2))*(CORL(2,1,1)+CORL(2,1,2))+ | |
10067 | & (CORL(1,2,1)+CORL(1,2,2))*(CORL(2,2,1)+CORL(2,2,2)))*S34*S56* | |
10068 | & ((TI**2+UI**2+2D0*SH*(S34+S56))/(TI*UI)-S34*S56*(1D0/TI**2+ | |
10069 | & 1D0/UI**2)) | |
10070 | ||
10071 | ELSEIF(ISUB.EQ.23) THEN | |
10072 | C...Angular weight for f + fbar' -> Z0 + W+/- -> 4 quarks/leptons. | |
10073 | D34=P(IREF(IP,IORD),5)**2 | |
10074 | D56=P(IREF(IP,3-IORD),5)**2 | |
10075 | DT=PKK(1,3)+PKK(1,4)+D34 | |
10076 | DU=PKK(1,5)+PKK(1,6)+D56 | |
10077 | FACBW=1D0/((SH-SQMW)**2+SQMW*PMAS(24,2)**2) | |
10078 | CAWZ=COUP(2,3)/DT-2D0*XW1*COUP(1,2)*(SH-SQMW)*FACBW | |
10079 | CBWZ=COUP(1,3)/DU+2D0*XW1*COUP(1,2)*(SH-SQMW)*FACBW | |
10080 | FGK135=ABS(REAL(CAWZ)*FGK(1,2,3,4,5,6)+ | |
10081 | & REAL(CBWZ)*FGK(1,2,5,6,3,4)) | |
10082 | FGK136=ABS(REAL(CAWZ)*FGK(1,2,3,4,6,5)+ | |
10083 | & REAL(CBWZ)*FGK(1,2,6,5,3,4)) | |
10084 | WT=(COUP(5,3)*FGK135)**2+(COUP(5,4)*FGK136)**2 | |
10085 | WTMAX=4D0*D34*D56*(COUP(5,3)**2+COUP(5,4)**2)*(CAWZ**2* | |
10086 | & DIGK(DT,DU)+CBWZ**2*DIGK(DU,DT)+CAWZ*CBWZ*DJGK(DT,DU)) | |
10087 | ||
10088 | ELSEIF(ISUB.EQ.24.OR.ISUB.EQ.171.OR.ISUB.EQ.176) THEN | |
10089 | C...Angular weight for f + fbar -> Z0 + h0 -> 2 quarks/leptons + h0 | |
10090 | C...(or H0, or A0). | |
10091 | WT=((COUP(1,3)*COUP(3,3))**2+(COUP(1,4)*COUP(3,4))**2)* | |
10092 | & PKK(1,3)*PKK(2,4)+((COUP(1,3)*COUP(3,4))**2+(COUP(1,4)* | |
10093 | & COUP(3,3))**2)*PKK(1,4)*PKK(2,3) | |
10094 | WTMAX=(COUP(1,3)**2+COUP(1,4)**2)*(COUP(3,3)**2+COUP(3,4)**2)* | |
10095 | & (PKK(1,3)+PKK(1,4))*(PKK(2,3)+PKK(2,4)) | |
10096 | ||
10097 | ELSEIF(ISUB.EQ.25) THEN | |
10098 | C...Angular weight for f + fbar -> W+ + W- -> 4 quarks/leptons. | |
10099 | D34=P(IREF(IP,IORD),5)**2 | |
10100 | D56=P(IREF(IP,3-IORD),5)**2 | |
10101 | DT=PKK(1,3)+PKK(1,4)+D34 | |
10102 | DU=PKK(1,5)+PKK(1,6)+D56 | |
10103 | FACBW=1D0/((SH-SQMZ)**2+SQMZ*PMAS(23,2)**2) | |
10104 | CDWW=(COUP(1,3)*SQMZ*(SH-SQMZ)*FACBW+COUP(1,2))/SH | |
10105 | CAWW=CDWW+0.5D0*(COUP(1,2)+1D0)/DT | |
10106 | CBWW=CDWW+0.5D0*(COUP(1,2)-1D0)/DU | |
10107 | CCWW=COUP(1,4)*SQMZ*(SH-SQMZ)*FACBW/SH | |
10108 | FGK135=ABS(REAL(CAWW)*FGK(1,2,3,4,5,6)- | |
10109 | & REAL(CBWW)*FGK(1,2,5,6,3,4)) | |
10110 | FGK253=ABS(FGK(2,1,5,6,3,4)-FGK(2,1,3,4,5,6)) | |
10111 | WT=FGK135**2+(CCWW*FGK253)**2 | |
10112 | WTMAX=4D0*D34*D56*(CAWW**2*DIGK(DT,DU)+CBWW**2*DIGK(DU,DT)-CAWW* | |
10113 | & CBWW*DJGK(DT,DU)+CCWW**2*(DIGK(DT,DU)+DIGK(DU,DT)-DJGK(DT,DU))) | |
10114 | ||
10115 | ELSEIF(ISUB.EQ.26.OR.ISUB.EQ.172.OR.ISUB.EQ.177) THEN | |
10116 | C...Angular weight for f + fbar' -> W+/- + h0 -> 2 quarks/leptons + h0 | |
10117 | C...(or H0, or A0). | |
10118 | WT=PKK(1,3)*PKK(2,4) | |
10119 | WTMAX=(PKK(1,3)+PKK(1,4))*(PKK(2,3)+PKK(2,4)) | |
10120 | ||
10121 | ELSEIF(ISUB.EQ.30.OR.ISUB.EQ.35) THEN | |
10122 | C...Angular weight for f + g/gamma -> f + (gamma*/Z0) | |
10123 | C...-> f + 2 quarks/leptons. | |
10124 | CLILF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10125 | & COUP(1,1)*COUP(1,3)*HGZ(2,2)*COUP(3,1)*COUP(3,3)/4D0+ | |
10126 | & COUP(1,3)**2*HGZ(2,3)*COUP(3,3)**2 | |
10127 | CLIRF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10128 | & COUP(1,1)*COUP(1,3)*HGZ(2,2)*COUP(3,1)*COUP(3,4)/4D0+ | |
10129 | & COUP(1,3)**2*HGZ(2,3)*COUP(3,4)**2 | |
10130 | CRILF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10131 | & COUP(1,1)*COUP(1,4)*HGZ(2,2)*COUP(3,1)*COUP(3,3)/4D0+ | |
10132 | & COUP(1,4)**2*HGZ(2,3)*COUP(3,3)**2 | |
10133 | CRIRF=COUP(1,1)**2*HGZ(2,1)*COUP(3,1)**2/16D0+ | |
10134 | & COUP(1,1)*COUP(1,4)*HGZ(2,2)*COUP(3,1)*COUP(3,4)/4D0+ | |
10135 | & COUP(1,4)**2*HGZ(2,3)*COUP(3,4)**2 | |
10136 | IF(K(ILIN(1),2).GT.0) WT=(CLILF+CRIRF)*(PKK(1,4)**2+ | |
10137 | & PKK(3,5)**2)+(CLIRF+CRILF)*(PKK(1,3)**2+PKK(4,5)**2) | |
10138 | IF(K(ILIN(1),2).LT.0) WT=(CLILF+CRIRF)*(PKK(1,3)**2+ | |
10139 | & PKK(4,5)**2)+(CLIRF+CRILF)*(PKK(1,4)**2+PKK(3,5)**2) | |
10140 | WTMAX=(CLILF+CLIRF+CRILF+CRIRF)* | |
10141 | & ((PKK(1,3)+PKK(1,4))**2+(PKK(3,5)+PKK(4,5))**2) | |
10142 | ||
10143 | ELSEIF(ISUB.EQ.31) THEN | |
10144 | C...Angular weight for f + g -> f' + W+/- -> f' + 2 quarks/leptons. | |
10145 | IF(K(ILIN(1),2).GT.0) WT=PKK(1,4)**2+PKK(3,5)**2 | |
10146 | IF(K(ILIN(1),2).LT.0) WT=PKK(1,3)**2+PKK(4,5)**2 | |
10147 | WTMAX=(PKK(1,3)+PKK(1,4))**2+(PKK(3,5)+PKK(4,5))**2 | |
10148 | ||
10149 | ELSEIF(ISUB.EQ.71.OR.ISUB.EQ.72.OR.ISUB.EQ.73.OR.ISUB.EQ.76.OR. | |
10150 | & ISUB.EQ.77) THEN | |
10151 | C...Angular weight for V_L1 + V_L2 -> V_L3 + V_L4 (V = Z/W). | |
10152 | WT=16D0*PKK(3,5)*PKK(4,6) | |
10153 | WTMAX=SH**2 | |
10154 | ||
10155 | ELSEIF(ISUB.EQ.110) THEN | |
10156 | C...Angular weight for f + fbar -> gamma + h0 -> gamma + X is isotropic. | |
10157 | WT=1D0 | |
10158 | WTMAX=1D0 | |
10159 | ||
10160 | ELSEIF(ISUB.EQ.141) THEN | |
10161 | IF(IP.EQ.1.AND.IABS(KFL1(1)).LT.20) THEN | |
10162 | C...Angular weight for f + fbar -> gamma*/Z0/Z'0 -> 2 quarks/leptons. | |
10163 | C...Couplings of incoming flavour. | |
10164 | KFAI=IABS(MINT(15)) | |
10165 | EI=KCHG(KFAI,1)/3D0 | |
10166 | AI=SIGN(1D0,EI+0.1D0) | |
10167 | VI=AI-4D0*EI*XWV | |
10168 | KFAIC=1 | |
10169 | IF(KFAI.LE.10.AND.MOD(KFAI,2).EQ.0) KFAIC=2 | |
10170 | IF(KFAI.GT.10.AND.MOD(KFAI,2).NE.0) KFAIC=3 | |
10171 | IF(KFAI.GT.10.AND.MOD(KFAI,2).EQ.0) KFAIC=4 | |
10172 | VPI=PARU(119+2*KFAIC) | |
10173 | API=PARU(120+2*KFAIC) | |
10174 | C...Couplings of final flavour. | |
10175 | KFAF=IABS(KFL1(1)) | |
10176 | EF=KCHG(KFAF,1)/3D0 | |
10177 | AF=SIGN(1D0,EF+0.1D0) | |
10178 | VF=AF-4D0*EF*XWV | |
10179 | KFAFC=1 | |
10180 | IF(KFAF.LE.10.AND.MOD(KFAF,2).EQ.0) KFAFC=2 | |
10181 | IF(KFAF.GT.10.AND.MOD(KFAF,2).NE.0) KFAFC=3 | |
10182 | IF(KFAF.GT.10.AND.MOD(KFAF,2).EQ.0) KFAFC=4 | |
10183 | VPF=PARU(119+2*KFAFC) | |
10184 | APF=PARU(120+2*KFAFC) | |
10185 | C...Asymmetry and weight. | |
10186 | ASYM=2D0*(EI*AI*VINT(112)*EF*AF+EI*API*VINT(113)*EF*APF+ | |
10187 | & 4D0*VI*AI*VINT(114)*VF*AF+(VI*API+VPI*AI)*VINT(115)* | |
10188 | & (VF*APF+VPF*AF)+4D0*VPI*API*VINT(116)*VPF*APF)/ | |
10189 | & (EI**2*VINT(111)*EF**2+EI*VI*VINT(112)*EF*VF+ | |
10190 | & EI*VPI*VINT(113)*EF*VPF+(VI**2+AI**2)*VINT(114)* | |
10191 | & (VF**2+AF**2)+(VI*VPI+AI*API)*VINT(115)*(VF*VPF+AF*APF)+ | |
10192 | & (VPI**2+API**2)*VINT(116)*(VPF**2+APF**2)) | |
10193 | WT=1D0+ASYM*CTHE(1)*ISIGN(1,MINT(15)*KFL1(1))+CTHE(1)**2 | |
10194 | WTMAX=2D0+ABS(ASYM) | |
10195 | ELSEIF(IP.EQ.1.AND.IABS(KFL1(1)).EQ.24) THEN | |
10196 | C...Angular weight for f + fbar -> Z' -> W+ + W-. | |
10197 | RM1=P(NSD(1)+1,5)**2/SH | |
10198 | RM2=P(NSD(1)+2,5)**2/SH | |
10199 | CCOS2=-(1D0/16D0)*((1D0-RM1-RM2)**2-4D0*RM1*RM2)* | |
10200 | & (1D0-2D0*RM1-2D0*RM2+RM1**2+RM2**2+10D0*RM1*RM2) | |
10201 | CFLAT=-CCOS2+0.5D0*(RM1+RM2)*(1D0-2D0*RM1-2D0*RM2+ | |
10202 | & (RM2-RM1)**2) | |
10203 | WT=CFLAT+CCOS2*CTHE(1)**2 | |
10204 | WTMAX=CFLAT+MAX(0D0,CCOS2) | |
10205 | ELSEIF(IP.EQ.1.AND.(KFL1(1).EQ.25.OR.KFL1(1).EQ.35.OR. | |
10206 | & IABS(KFL1(1)).EQ.37)) THEN | |
10207 | C...Angular weight for f + fbar -> Z' -> h0 + A0, H0 + A0, H+ + H-. | |
10208 | WT=1D0-CTHE(1)**2 | |
10209 | WTMAX=1D0 | |
10210 | ELSEIF(IP.EQ.1.AND.KFL2(1).EQ.25) THEN | |
10211 | C...Angular weight for f + fbar -> Z' -> Z0 + h0. | |
10212 | RM1=P(NSD(1)+1,5)**2/SH | |
10213 | RM2=P(NSD(1)+2,5)**2/SH | |
10214 | FLAM2=MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2) | |
10215 | WT=1D0+FLAM2*(1D0-CTHE(1)**2)/(8D0*RM1) | |
10216 | WTMAX=1D0+FLAM2/(8D0*RM1) | |
10217 | ELSEIF(MZPWP.EQ.0) THEN | |
10218 | C...Angular weight for f + fbar -> Z' -> W+ + W- -> 4 quarks/leptons | |
10219 | C...(W:s like if intermediate Z). | |
10220 | D34=P(IREF(IP,IORD),5)**2 | |
10221 | D56=P(IREF(IP,3-IORD),5)**2 | |
10222 | DT=PKK(1,3)+PKK(1,4)+D34 | |
10223 | DU=PKK(1,5)+PKK(1,6)+D56 | |
10224 | FGK135=ABS(FGK(1,2,3,4,5,6)-FGK(1,2,5,6,3,4)) | |
10225 | FGK253=ABS(FGK(2,1,5,6,3,4)-FGK(2,1,3,4,5,6)) | |
10226 | WT=(COUP(1,3)*FGK135)**2+(COUP(1,4)*FGK253)**2 | |
10227 | WTMAX=4D0*D34*D56*(COUP(1,3)**2+COUP(1,4)**2)* | |
10228 | & (DIGK(DT,DU)+DIGK(DU,DT)-DJGK(DT,DU)) | |
10229 | ELSEIF(MZPWP.EQ.1) THEN | |
10230 | C...Angular weight for f + fbar -> Z' -> W+ + W- -> 4 quarks/leptons | |
10231 | C...(W:s approximately longitudinal, like if intermediate H). | |
10232 | WT=16D0*PKK(3,5)*PKK(4,6) | |
10233 | WTMAX=SH**2 | |
10234 | ELSE | |
10235 | C...Angular weight for f + fbar -> Z' -> H+ + H-, Z0 + h0, h0 + A0, | |
10236 | C...H0 + A0 -> 4 quarks/leptons. | |
10237 | WT=1D0 | |
10238 | WTMAX=1D0 | |
10239 | ENDIF | |
10240 | ||
10241 | ELSEIF(ISUB.EQ.142) THEN | |
10242 | IF(IP.EQ.1.AND.IABS(KFL1(1)).LT.20) THEN | |
10243 | C...Angular weight for f + fbar' -> W'+/- -> 2 quarks/leptons. | |
10244 | KFAI=IABS(MINT(15)) | |
10245 | KFAIC=1 | |
10246 | IF(KFAI.GT.10) KFAIC=2 | |
10247 | VI=PARU(129+2*KFAIC) | |
10248 | AI=PARU(130+2*KFAIC) | |
10249 | KFAF=IABS(KFL1(1)) | |
10250 | KFAFC=1 | |
10251 | IF(KFAF.GT.10) KFAFC=2 | |
10252 | VF=PARU(129+2*KFAFC) | |
10253 | AF=PARU(130+2*KFAFC) | |
10254 | ASYM=8D0*VI*AI*VF*AF/((VI**2+AI**2)*(VF**2+AF**2)) | |
10255 | WT=1D0+ASYM*CTHE(1)*ISIGN(1,MINT(15)*KFL1(1))+CTHE(1)**2 | |
10256 | WTMAX=2D0+ABS(ASYM) | |
10257 | ELSEIF(IP.EQ.1.AND.IABS(KFL2(1)).EQ.23) THEN | |
10258 | C...Angular weight for f + fbar' -> W'+/- -> W+/- + Z0. | |
10259 | RM1=P(NSD(1)+1,5)**2/SH | |
10260 | RM2=P(NSD(1)+2,5)**2/SH | |
10261 | CCOS2=-(1D0/16D0)*((1D0-RM1-RM2)**2-4D0*RM1*RM2)* | |
10262 | & (1D0-2D0*RM1-2D0*RM2+RM1**2+RM2**2+10D0*RM1*RM2) | |
10263 | CFLAT=-CCOS2+0.5D0*(RM1+RM2)*(1D0-2D0*RM1-2D0*RM2+ | |
10264 | & (RM2-RM1)**2) | |
10265 | WT=CFLAT+CCOS2*CTHE(1)**2 | |
10266 | WTMAX=CFLAT+MAX(0D0,CCOS2) | |
10267 | ELSEIF(IP.EQ.1.AND.KFL2(1).EQ.25) THEN | |
10268 | C...Angular weight for f + fbar -> W'+/- -> W+/- + h0. | |
10269 | RM1=P(NSD(1)+1,5)**2/SH | |
10270 | RM2=P(NSD(1)+2,5)**2/SH | |
10271 | FLAM2=MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2) | |
10272 | WT=1D0+FLAM2*(1D0-CTHE(1)**2)/(8D0*RM1) | |
10273 | WTMAX=1D0+FLAM2/(8D0*RM1) | |
10274 | ELSEIF(MZPWP.EQ.0) THEN | |
10275 | C...Angular weight for f + fbar' -> W' -> W + Z0 -> 4 quarks/leptons | |
10276 | C...(W/Z like if intermediate W). | |
10277 | D34=P(IREF(IP,IORD),5)**2 | |
10278 | D56=P(IREF(IP,3-IORD),5)**2 | |
10279 | DT=PKK(1,3)+PKK(1,4)+D34 | |
10280 | DU=PKK(1,5)+PKK(1,6)+D56 | |
10281 | FGK135=ABS(FGK(1,2,3,4,5,6)-FGK(1,2,5,6,3,4)) | |
10282 | FGK136=ABS(FGK(1,2,3,4,6,5)-FGK(1,2,6,5,3,4)) | |
10283 | WT=(COUP(5,3)*FGK135)**2+(COUP(5,4)*FGK136)**2 | |
10284 | WTMAX=4D0*D34*D56*(COUP(5,3)**2+COUP(5,4)**2)* | |
10285 | & (DIGK(DT,DU)+DIGK(DU,DT)-DJGK(DT,DU)) | |
10286 | ELSEIF(MZPWP.EQ.1) THEN | |
10287 | C...Angular weight for f + fbar' -> W' -> W + Z0 -> 4 quarks/leptons | |
10288 | C...(W/Z approximately longitudinal, like if intermediate H). | |
10289 | WT=16D0*PKK(3,5)*PKK(4,6) | |
10290 | WTMAX=SH**2 | |
10291 | ELSE | |
10292 | C...Angular weight for f + fbar -> W' -> W + h0 -> whatever. | |
10293 | WT=1D0 | |
10294 | WTMAX=1D0 | |
10295 | ENDIF | |
10296 | ||
10297 | ELSEIF(ISUB.EQ.145.OR.ISUB.EQ.162.OR.ISUB.EQ.163.OR.ISUB.EQ.164) | |
10298 | & THEN | |
10299 | C...Isotropic decay of leptoquarks (assumed spin 0). | |
10300 | WT=1D0 | |
10301 | WTMAX=1D0 | |
10302 | ||
10303 | ELSEIF(ISUB.EQ.147.OR.ISUB.EQ.148) THEN | |
10304 | C...Decays of (spin 1/2) q* -> q + (g,gamma) or (Z0,W+-). | |
10305 | SIDE=1D0 | |
10306 | IF(MINT(16).EQ.21) SIDE=-1D0 | |
10307 | IF(IP.EQ.1.AND.(KFL1(1).EQ.21.OR.KFL1(1).EQ.22)) THEN | |
10308 | WT=1D0+SIDE*CTHE(1) | |
10309 | WTMAX=2D0 | |
10310 | ELSEIF(IP.EQ.1) THEN | |
10311 | RM1=P(NSD(1)+1,5)**2/SH | |
10312 | WT=1D0+SIDE*CTHE(1)*(1D0-0.5D0*RM1)/(1D0+0.5D0*RM1) | |
10313 | WTMAX=1D0+(1D0-0.5D0*RM1)/(1D0+0.5D0*RM1) | |
10314 | ELSE | |
10315 | C...W/Z decay assumed isotropic, since not known. | |
10316 | WT=1D0 | |
10317 | WTMAX=1D0 | |
10318 | ENDIF | |
10319 | ||
10320 | ELSEIF(ISUB.EQ.149) THEN | |
10321 | C...Isotropic decay of techni-eta. | |
10322 | WT=1D0 | |
10323 | WTMAX=1D0 | |
10324 | ||
10325 | ELSEIF(ISUB.EQ.191) THEN | |
10326 | IF(IP.EQ.1.AND.IABS(KFL1(1)).GT.21) THEN | |
10327 | C...Angular weight for f + fbar -> rho_tech0 -> W+ W-, | |
10328 | C...W+ pi_tech-, pi_tech+ W- or pi_tech+ pi_tech-. | |
10329 | WT=1D0-CTHE(1)**2 | |
10330 | WTMAX=1D0 | |
10331 | ELSEIF(IP.EQ.1) THEN | |
10332 | C...Angular weight for f + fbar -> rho_tech0 -> f fbar. | |
10333 | CTHESG=CTHE(1)*ISIGN(1,MINT(15)) | |
10334 | XWRHT=(1D0-2D0*XW)/(4D0*XW*(1D0-XW)) | |
10335 | BWZR=XWRHT*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
10336 | BWZI=XWRHT*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
10337 | KFAI=IABS(MINT(15)) | |
10338 | EI=KCHG(KFAI,1)/3D0 | |
10339 | AI=SIGN(1D0,EI+0.1D0) | |
10340 | VI=AI-4D0*EI*XWV | |
10341 | VALI=0.5D0*(VI+AI) | |
10342 | VARI=0.5D0*(VI-AI) | |
10343 | ALEFTI=(EI+VALI*BWZR)**2+(VALI*BWZI)**2 | |
10344 | ARIGHI=(EI+VARI*BWZR)**2+(VARI*BWZI)**2 | |
10345 | KFAF=IABS(KFL1(1)) | |
10346 | EF=KCHG(KFAF,1)/3D0 | |
10347 | AF=SIGN(1D0,EF+0.1D0) | |
10348 | VF=AF-4D0*EF*XWV | |
10349 | VALF=0.5D0*(VF+AF) | |
10350 | VARF=0.5D0*(VF-AF) | |
10351 | ALEFTF=(EF+VALF*BWZR)**2+(VALF*BWZI)**2 | |
10352 | ARIGHF=(EF+VARF*BWZR)**2+(VARF*BWZI)**2 | |
10353 | ASAME=ALEFTI*ALEFTF+ARIGHI*ARIGHF | |
10354 | AFLIP=ALEFTI*ARIGHF+ARIGHI*ALEFTF | |
10355 | WT=ASAME*(1D0+CTHESG)**2+AFLIP*(1D0-CTHESG)**2 | |
10356 | WTMAX=4D0*MAX(ASAME,AFLIP) | |
10357 | ELSE | |
10358 | C...Isotropic decay of W/pi_tech produced in rho_tech decay. | |
10359 | WT=1D0 | |
10360 | WTMAX=1D0 | |
10361 | ENDIF | |
10362 | ||
10363 | ELSEIF(ISUB.EQ.192) THEN | |
10364 | IF(IP.EQ.1.AND.IABS(KFL1(1)).GT.21) THEN | |
10365 | C...Angular weight for f + fbar' -> rho_tech+ -> W+ Z0, | |
10366 | C...W+ pi_tech0, pi_tech+ Z0 or pi_tech+ pi_tech0. | |
10367 | WT=1D0-CTHE(1)**2 | |
10368 | WTMAX=1D0 | |
10369 | ELSEIF(IP.EQ.1) THEN | |
10370 | C...Angular weight for f + fbar' -> rho_tech+ -> f fbar'. | |
10371 | CTHESG=CTHE(1)*ISIGN(1,MINT(15)) | |
10372 | WT=(1D0+CTHESG)**2 | |
10373 | WTMAX=4D0 | |
10374 | ELSE | |
10375 | C...Isotropic decay of W/Z/pi_tech produced in rho_tech+ decay. | |
10376 | WT=1D0 | |
10377 | WTMAX=1D0 | |
10378 | ENDIF | |
10379 | ||
10380 | ELSEIF(ISUB.EQ.193) THEN | |
10381 | IF(IP.EQ.1.AND.IABS(KFL1(1)).GT.21) THEN | |
10382 | C...Angular weight for f + fbar -> omega_tech0 -> | |
10383 | C...gamma pi_tech0 or Z0 pi_tech0. | |
10384 | WT=1D0+CTHE(1)**2 | |
10385 | WTMAX=2D0 | |
10386 | ELSEIF(IP.EQ.1) THEN | |
10387 | C...Angular weight for f + fbar -> omega_tech0 -> f fbar. | |
10388 | CTHESG=CTHE(1)*ISIGN(1,MINT(15)) | |
10389 | BWZR=(0.5D0/(1D0-XW))*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
10390 | BWZI=(0.5D0/(1D0-XW))*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
10391 | KFAI=IABS(MINT(15)) | |
10392 | EI=KCHG(KFAI,1)/3D0 | |
10393 | AI=SIGN(1D0,EI+0.1D0) | |
10394 | VI=AI-4D0*EI*XWV | |
10395 | VALI=0.5D0*(VI+AI) | |
10396 | VARI=0.5D0*(VI-AI) | |
10397 | BLEFTI=(EI-VALI*BWZR)**2+(VALI*BWZI)**2 | |
10398 | BRIGHI=(EI-VARI*BWZR)**2+(VARI*BWZI)**2 | |
10399 | KFAF=IABS(KFL1(1)) | |
10400 | EF=KCHG(KFAF,1)/3D0 | |
10401 | AF=SIGN(1D0,EF+0.1D0) | |
10402 | VF=AF-4D0*EF*XWV | |
10403 | VALF=0.5D0*(VF+AF) | |
10404 | VARF=0.5D0*(VF-AF) | |
10405 | BLEFTF=(EF-VALF*BWZR)**2+(VALF*BWZI)**2 | |
10406 | BRIGHF=(EF-VARF*BWZR)**2+(VARF*BWZI)**2 | |
10407 | BSAME=BLEFTI*BLEFTF+BRIGHI*BRIGHF | |
10408 | BFLIP=BLEFTI*BRIGHF+BRIGHI*BLEFTF | |
10409 | WT=BSAME*(1D0+CTHESG)**2+BFLIP*(1D0-CTHESG)**2 | |
10410 | WTMAX=4D0*MAX(BSAME,BFLIP) | |
10411 | ELSE | |
10412 | C...Isotropic decay of Z/pi_tech produced in omega_tech decay. | |
10413 | WT=1D0 | |
10414 | WTMAX=1D0 | |
10415 | ENDIF | |
10416 | ||
10417 | C...Obtain correct angular distribution by rejection techniques. | |
10418 | ELSE | |
10419 | WT=1D0 | |
10420 | WTMAX=1D0 | |
10421 | ENDIF | |
10422 | IF(WT.LT.PYR(0)*WTMAX) GOTO 310 | |
10423 | ||
10424 | C...Construct massive four-vectors using angles chosen. | |
10425 | 470 DO 540 JT=1,JTMAX | |
10426 | IF(KDCY(JT).EQ.0) GOTO 540 | |
10427 | ID=IREF(IP,JT) | |
10428 | DO 480 J=1,5 | |
10429 | DPMO(J)=P(ID,J) | |
10430 | 480 CONTINUE | |
10431 | DPMO(4)=SQRT(DPMO(1)**2+DPMO(2)**2+DPMO(3)**2+DPMO(5)**2) | |
10432 | CMRENNA++ | |
10433 | IF(KFL3(JT).EQ.0) THEN | |
10434 | CALL PYROBO(NSD(JT)+1,NSD(JT)+2,ACOS(CTHE(JT)),PHI(JT), | |
10435 | & DPMO(1)/DPMO(4),DPMO(2)/DPMO(4),DPMO(3)/DPMO(4)) | |
10436 | ELSE | |
10437 | CALL PYROBO(NSD(JT)+1,NSD(JT)+3,ACOS(CTHE(JT)),PHI(JT), | |
10438 | & DPMO(1)/DPMO(4),DPMO(2)/DPMO(4),DPMO(3)/DPMO(4)) | |
10439 | ENDIF | |
10440 | CMRENNA-- | |
10441 | ||
10442 | C...Mark decayed resonances; trace history. | |
10443 | K(ID,1)=K(ID,1)+10 | |
10444 | KFA=IABS(K(ID,2)) | |
10445 | KCA=PYCOMP(KFA) | |
10446 | IF(KCQM(JT).NE.0) THEN | |
10447 | C...Do not kill colour flow through coloured resonance! | |
10448 | ELSE | |
10449 | K(ID,4)=NSD(JT)+1 | |
10450 | K(ID,5)=NSD(JT)+2 | |
10451 | IF(KFL3(JT).NE.0) K(ID,5)=NSD(JT)+3 | |
10452 | ENDIF | |
10453 | ||
10454 | C...Add documentation lines. | |
10455 | IF(ISUB.NE.0) THEN | |
10456 | IDOC=MINT(83)+MINT(4) | |
10457 | CMRENNA+++ | |
10458 | IHI=NSD(JT)+2 | |
10459 | IF(KFL3(JT).NE.0) IHI=IHI+1 | |
10460 | DO 500 I=NSD(JT)+1,IHI | |
10461 | CMRENNA--- | |
10462 | I1=MINT(83)+MINT(4)+1 | |
10463 | K(I,3)=I1 | |
10464 | IF(MSTP(128).GE.1) K(I,3)=ID | |
10465 | IF(MSTP(128).LE.1.AND.MINT(4).LT.MSTP(126)) THEN | |
10466 | MINT(4)=MINT(4)+1 | |
10467 | K(I1,1)=21 | |
10468 | K(I1,2)=K(I,2) | |
10469 | K(I1,3)=IREF(IP,JT+3) | |
10470 | DO 490 J=1,5 | |
10471 | P(I1,J)=P(I,J) | |
10472 | 490 CONTINUE | |
10473 | ENDIF | |
10474 | 500 CONTINUE | |
10475 | ELSE | |
10476 | K(NSD(JT)+1,3)=ID | |
10477 | K(NSD(JT)+2,3)=ID | |
10478 | IF(KFL3(JT).NE.0) K(NSD(JT)+3,3)=ID | |
10479 | ENDIF | |
10480 | ||
10481 | C...Do showering if any of the two/three products can shower. | |
10482 | NSHBEF=N | |
10483 | IF(MSTP(71).GE.1) THEN | |
10484 | ISHOW1=0 | |
10485 | KFL1A=IABS(KFL1(JT)) | |
10486 | IF(KFL1A.LE.22) ISHOW1=1 | |
10487 | ISHOW2=0 | |
10488 | KFL2A=IABS(KFL2(JT)) | |
10489 | IF(KFL2A.LE.22) ISHOW2=1 | |
10490 | ISHOW3=0 | |
10491 | IF(KFL3(JT).NE.0) THEN | |
10492 | KFL3A=IABS(KFL3(JT)) | |
10493 | IF(KFL3A.LE.22) ISHOW3=1 | |
10494 | ENDIF | |
10495 | IF(ISHOW1.EQ.0.AND.ISHOW2.EQ.0.AND.ISHOW3.EQ.0) THEN | |
10496 | ELSEIF(KFL3(JT).EQ.0) THEN | |
10497 | CALL PYSHOW(NSD(JT)+1,NSD(JT)+2,P(ID,5)) | |
10498 | ELSE | |
10499 | NSD1=NSD(JT)+1 | |
10500 | NSD2=NSD(JT)+2 | |
10501 | IF(ISHOW1.EQ.0.AND.ISHOW3.NE.0) THEN | |
10502 | NSD1=NSD(JT)+3 | |
10503 | ELSEIF(ISHOW2.EQ.0.AND.ISHOW3.NE.0) THEN | |
10504 | NSD2=NSD(JT)+3 | |
10505 | ENDIF | |
10506 | PMSHOW=SQRT(MAX(0D0,(P(NSD1,4)+P(NSD2,4))**2- | |
10507 | & (P(NSD1,1)+P(NSD2,1))**2-(P(NSD1,2)+P(NSD2,2))**2- | |
10508 | & (P(NSD1,3)+P(NSD2,3))**2)) | |
10509 | CALL PYSHOW(NSD1,NSD2,PMSHOW) | |
10510 | ENDIF | |
10511 | ENDIF | |
10512 | NSHAFT=N | |
10513 | IF(JT.EQ.1) NAFT1=N | |
10514 | ||
10515 | C...Check if decay products moved by shower. | |
10516 | NSD1=NSD(JT)+1 | |
10517 | NSD2=NSD(JT)+2 | |
10518 | NSD3=NSD(JT)+3 | |
10519 | IF(NSHAFT.GT.NSHBEF) THEN | |
10520 | IF(K(NSD1,1).GT.10) THEN | |
10521 | DO 510 I=NSHBEF+1,NSHAFT | |
10522 | IF(K(I,1).LT.10.AND.K(I,2).EQ.K(NSD1,2)) NSD1=I | |
10523 | 510 CONTINUE | |
10524 | ENDIF | |
10525 | IF(K(NSD2,1).GT.10) THEN | |
10526 | DO 520 I=NSHBEF+1,NSHAFT | |
10527 | IF(K(I,1).LT.10.AND.K(I,2).EQ.K(NSD2,2).AND. | |
10528 | & I.NE.NSD1) NSD2=I | |
10529 | 520 CONTINUE | |
10530 | ENDIF | |
10531 | IF(KFL3(JT).NE.0.AND.K(NSD3,1).GT.10) THEN | |
10532 | DO 530 I=NSHBEF+1,NSHAFT | |
10533 | IF(K(I,1).LT.10.AND.K(I,2).EQ.K(NSD3,2).AND. | |
10534 | & I.NE.NSD1.AND.I.NE.NSD2) NSD3=I | |
10535 | 530 CONTINUE | |
10536 | ENDIF | |
10537 | ENDIF | |
10538 | ||
10539 | C...Store decay products for further treatment. | |
10540 | NP=NP+1 | |
10541 | IREF(NP,1)=NSD1 | |
10542 | IREF(NP,2)=NSD2 | |
10543 | IREF(NP,3)=0 | |
10544 | IF(KFL3(JT).NE.0) IREF(NP,3)=NSD3 | |
10545 | IREF(NP,4)=IDOC+1 | |
10546 | IREF(NP,5)=IDOC+2 | |
10547 | IREF(NP,6)=0 | |
10548 | IF(KFL3(JT).NE.0) IREF(NP,6)=IDOC+3 | |
10549 | IREF(NP,7)=K(IREF(IP,JT),2) | |
10550 | IREF(NP,8)=IREF(IP,JT) | |
10551 | 540 CONTINUE | |
10552 | ||
10553 | C...Fill information for 2 -> 1 -> 2. | |
10554 | 550 IF(JTMAX.EQ.1.AND.KDCY(1).NE.0.AND.ISUB.NE.0) THEN | |
10555 | MINT(7)=MINT(83)+6+2*ISET(ISUB) | |
10556 | MINT(8)=MINT(83)+7+2*ISET(ISUB) | |
10557 | MINT(25)=KFL1(1) | |
10558 | MINT(26)=KFL2(1) | |
10559 | VINT(23)=CTHE(1) | |
10560 | RM3=P(N-1,5)**2/SH | |
10561 | RM4=P(N,5)**2/SH | |
10562 | BE34=SQRT(MAX(0D0,(1D0-RM3-RM4)**2-4D0*RM3*RM4)) | |
10563 | VINT(45)=-0.5D0*SH*(1D0-RM3-RM4-BE34*CTHE(1)) | |
10564 | VINT(46)=-0.5D0*SH*(1D0-RM3-RM4+BE34*CTHE(1)) | |
10565 | VINT(48)=0.25D0*SH*BE34**2*MAX(0D0,1D0-CTHE(1)**2) | |
10566 | VINT(47)=SQRT(VINT(48)) | |
10567 | ENDIF | |
10568 | ||
10569 | C...Possibility of colour rearrangement in W+W- events. | |
10570 | IF(ISUB.EQ.25.AND.MSTP(115).GE.1) THEN | |
10571 | IAKF1=IABS(KFL1(1)) | |
10572 | IAKF2=IABS(KFL1(2)) | |
10573 | IAKF3=IABS(KFL2(1)) | |
10574 | IAKF4=IABS(KFL2(2)) | |
10575 | IF(MIN(IAKF1,IAKF2,IAKF3,IAKF4).GE.1.AND. | |
10576 | & MAX(IAKF1,IAKF2,IAKF3,IAKF4).LE.5) CALL | |
10577 | & PYRECO(IREF(1,1),IREF(1,2),NSD(1),NAFT1) | |
10578 | ENDIF | |
10579 | ||
10580 | C...Loop back if needed. | |
10581 | 560 IF(IP.LT.NP) GOTO 130 | |
10582 | ||
10583 | RETURN | |
10584 | END | |
10585 | ||
10586 | C********************************************************************* | |
10587 | ||
10588 | C...PYMULT | |
10589 | C...Initializes treatment of multiple interactions, selects kinematics | |
10590 | C...of hardest interaction if low-pT physics included in run, and | |
10591 | C...generates all non-hardest interactions. | |
10592 | ||
10593 | SUBROUTINE PYMULT(MMUL) | |
10594 | ||
10595 | C...Double precision and integer declarations. | |
10596 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
10597 | INTEGER PYK,PYCHGE,PYCOMP | |
10598 | C...Commonblocks. | |
10599 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
10600 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
10601 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
10602 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
10603 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
10604 | COMMON/PYINT1/MINT(400),VINT(400) | |
10605 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
10606 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
10607 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
10608 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
10609 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
10610 | &/PYINT2/,/PYINT3/,/PYINT5/,/PYINT7/ | |
10611 | C...Local arrays and saved variables. | |
10612 | DIMENSION NMUL(20),SIGM(20),KSTR(500,2),VINTSV(80) | |
10613 | SAVE XT2,XT2FAC,XC2,XTS,IRBIN,RBIN,NMUL,SIGM | |
10614 | ||
10615 | C...Initialization of multiple interaction treatment. | |
10616 | IF(MMUL.EQ.1) THEN | |
10617 | IF(MSTP(122).GE.1) WRITE(MSTU(11),5000) MSTP(82) | |
10618 | ISUB=96 | |
10619 | MINT(1)=96 | |
10620 | VINT(63)=0D0 | |
10621 | VINT(64)=0D0 | |
10622 | VINT(143)=1D0 | |
10623 | VINT(144)=1D0 | |
10624 | ||
10625 | C...Loop over phase space points: xT2 choice in 20 bins. | |
10626 | 100 SIGSUM=0D0 | |
10627 | DO 120 IXT2=1,20 | |
10628 | NMUL(IXT2)=MSTP(83) | |
10629 | SIGM(IXT2)=0D0 | |
10630 | DO 110 ITRY=1,MSTP(83) | |
10631 | RSCA=0.05D0*((21-IXT2)-PYR(0)) | |
10632 | XT2=VINT(149)*(1D0+VINT(149))/(VINT(149)+RSCA)-VINT(149) | |
10633 | XT2=MAX(0.01D0*VINT(149),XT2) | |
10634 | VINT(25)=XT2 | |
10635 | ||
10636 | C...Choose tau and y*. Calculate cos(theta-hat). | |
10637 | IF(PYR(0).LE.COEF(ISUB,1)) THEN | |
10638 | TAUT=(2D0*(1D0+SQRT(1D0-XT2))/XT2-1D0)**PYR(0) | |
10639 | TAU=XT2*(1D0+TAUT)**2/(4D0*TAUT) | |
10640 | ELSE | |
10641 | TAU=XT2*(1D0+TAN(PYR(0)*ATAN(SQRT(1D0/XT2-1D0)))**2) | |
10642 | ENDIF | |
10643 | VINT(21)=TAU | |
10644 | CALL PYKLIM(2) | |
10645 | RYST=PYR(0) | |
10646 | MYST=1 | |
10647 | IF(RYST.GT.COEF(ISUB,8)) MYST=2 | |
10648 | IF(RYST.GT.COEF(ISUB,8)+COEF(ISUB,9)) MYST=3 | |
10649 | CALL PYKMAP(2,MYST,PYR(0)) | |
10650 | VINT(23)=SQRT(MAX(0D0,1D0-XT2/TAU))*(-1)**INT(1.5D0+PYR(0)) | |
10651 | ||
10652 | C...Calculate differential cross-section. | |
10653 | VINT(71)=0.5D0*VINT(1)*SQRT(XT2) | |
10654 | CALL PYSIGH(NCHN,SIGS) | |
10655 | SIGM(IXT2)=SIGM(IXT2)+SIGS | |
10656 | 110 CONTINUE | |
10657 | SIGSUM=SIGSUM+SIGM(IXT2) | |
10658 | 120 CONTINUE | |
10659 | SIGSUM=SIGSUM/(20D0*MSTP(83)) | |
10660 | ||
10661 | C...Reject result if sigma(parton-parton) is smaller than hadronic one. | |
10662 | IF(SIGSUM.LT.1.1D0*SIGT(0,0,5)) THEN | |
10663 | IF(MSTP(122).GE.1) WRITE(MSTU(11),5100) PARP(82),SIGSUM | |
10664 | PARP(82)=0.9D0*PARP(82) | |
10665 | VINT(149)=4D0*PARP(82)**2/VINT(2) | |
10666 | GOTO 100 | |
10667 | ENDIF | |
10668 | IF(MSTP(122).GE.1) WRITE(MSTU(11),5200) PARP(82), SIGSUM | |
10669 | ||
10670 | C...Start iteration to find k factor. | |
10671 | YKE=SIGSUM/SIGT(0,0,5) | |
10672 | SO=0.5D0 | |
10673 | XI=0D0 | |
10674 | YI=0D0 | |
10675 | XF=0D0 | |
10676 | YF=0D0 | |
10677 | XK=0.5D0 | |
10678 | IIT=0 | |
10679 | 130 IF(IIT.EQ.0) THEN | |
10680 | XK=2D0*XK | |
10681 | ELSEIF(IIT.EQ.1) THEN | |
10682 | XK=0.5D0*XK | |
10683 | ELSE | |
10684 | XK=XI+(YKE-YI)*(XF-XI)/(YF-YI) | |
10685 | ENDIF | |
10686 | ||
10687 | C...Evaluate overlap integrals. | |
10688 | IF(MSTP(82).EQ.2) THEN | |
10689 | SP=0.5D0*PARU(1)*(1D0-EXP(-XK)) | |
10690 | SOP=SP/PARU(1) | |
10691 | ELSE | |
10692 | IF(MSTP(82).EQ.3) DELTAB=0.02D0 | |
10693 | IF(MSTP(82).EQ.4) DELTAB=MIN(0.01D0,0.05D0*PARP(84)) | |
10694 | SP=0D0 | |
10695 | SOP=0D0 | |
10696 | B=-0.5D0*DELTAB | |
10697 | 140 B=B+DELTAB | |
10698 | IF(MSTP(82).EQ.3) THEN | |
10699 | OV=EXP(-B**2)/PARU(2) | |
10700 | ELSE | |
10701 | CQ2=PARP(84)**2 | |
10702 | OV=((1D0-PARP(83))**2*EXP(-MIN(50D0,B**2))+ | |
10703 | & 2D0*PARP(83)*(1D0-PARP(83))*2D0/(1D0+CQ2)* | |
10704 | & EXP(-MIN(50D0,B**2*2D0/(1D0+CQ2)))+ | |
10705 | & PARP(83)**2/CQ2*EXP(-MIN(50D0,B**2/CQ2)))/PARU(2) | |
10706 | ENDIF | |
10707 | PACC=1D0-EXP(-MIN(50D0,PARU(1)*XK*OV)) | |
10708 | SP=SP+PARU(2)*B*DELTAB*PACC | |
10709 | SOP=SOP+PARU(2)*B*DELTAB*OV*PACC | |
10710 | IF(B.LT.1D0.OR.B*PACC.GT.1D-6) GOTO 140 | |
10711 | ENDIF | |
10712 | YK=PARU(1)*XK*SO/SP | |
10713 | ||
10714 | C...Continue iteration until convergence. | |
10715 | IF(YK.LT.YKE) THEN | |
10716 | XI=XK | |
10717 | YI=YK | |
10718 | IF(IIT.EQ.1) IIT=2 | |
10719 | ELSE | |
10720 | XF=XK | |
10721 | YF=YK | |
10722 | IF(IIT.EQ.0) IIT=1 | |
10723 | ENDIF | |
10724 | IF(ABS(YK-YKE).GE.1D-5*YKE) GOTO 130 | |
10725 | ||
10726 | C...Store some results for subsequent use. | |
10727 | VINT(145)=SIGSUM | |
10728 | VINT(146)=SOP/SO | |
10729 | VINT(147)=SOP/SP | |
10730 | ||
10731 | C...Initialize iteration in xT2 for hardest interaction. | |
10732 | ELSEIF(MMUL.EQ.2) THEN | |
10733 | IF(MSTP(82).LE.0) THEN | |
10734 | ELSEIF(MSTP(82).EQ.1) THEN | |
10735 | XT2=1D0 | |
10736 | XT2FAC=XSEC(96,1)/SIGT(0,0,5)*VINT(149)/(1D0-VINT(149)) | |
10737 | ELSEIF(MSTP(82).EQ.2) THEN | |
10738 | XT2=1D0 | |
10739 | XT2FAC=VINT(146)*XSEC(96,1)/SIGT(0,0,5)*VINT(149)* | |
10740 | & (1D0+VINT(149)) | |
10741 | ELSE | |
10742 | XC2=4D0*CKIN(3)**2/VINT(2) | |
10743 | IF(CKIN(3).LE.CKIN(5).OR.MINT(82).GE.2) XC2=0D0 | |
10744 | ENDIF | |
10745 | ||
10746 | ELSEIF(MMUL.EQ.3) THEN | |
10747 | C...Low-pT or multiple interactions (first semihard interaction): | |
10748 | C...choose xT2 according to dpT2/pT2**2*exp(-(sigma above pT2)/norm) | |
10749 | C...or (MSTP(82)>=2) dpT2/(pT2+pT0**2)**2*exp(-....). | |
10750 | ISUB=MINT(1) | |
10751 | IF(MSTP(82).LE.0) THEN | |
10752 | XT2=0D0 | |
10753 | ELSEIF(MSTP(82).EQ.1) THEN | |
10754 | XT2=XT2FAC*XT2/(XT2FAC-XT2*LOG(PYR(0))) | |
10755 | ELSEIF(MSTP(82).EQ.2) THEN | |
10756 | IF(XT2.LT.1D0.AND.EXP(-XT2FAC*XT2/(VINT(149)*(XT2+ | |
10757 | & VINT(149)))).GT.PYR(0)) XT2=1D0 | |
10758 | IF(XT2.GE.1D0) THEN | |
10759 | XT2=(1D0+VINT(149))*XT2FAC/(XT2FAC-(1D0+VINT(149))*LOG(1D0- | |
10760 | & PYR(0)*(1D0-EXP(-XT2FAC/(VINT(149)*(1D0+VINT(149)))))))- | |
10761 | & VINT(149) | |
10762 | ELSE | |
10763 | XT2=-XT2FAC/LOG(EXP(-XT2FAC/(XT2+VINT(149)))+PYR(0)* | |
10764 | & (EXP(-XT2FAC/VINT(149))-EXP(-XT2FAC/(XT2+VINT(149)))))- | |
10765 | & VINT(149) | |
10766 | ENDIF | |
10767 | XT2=MAX(0.01D0*VINT(149),XT2) | |
10768 | ELSE | |
10769 | XT2=(XC2+VINT(149))*(1D0+VINT(149))/(1D0+VINT(149)- | |
10770 | & PYR(0)*(1D0-XC2))-VINT(149) | |
10771 | XT2=MAX(0.01D0*VINT(149),XT2) | |
10772 | ENDIF | |
10773 | VINT(25)=XT2 | |
10774 | ||
10775 | C...Low-pT: choose xT2, tau, y* and cos(theta-hat) fixed. | |
10776 | IF(MSTP(82).LE.1.AND.XT2.LT.VINT(149)) THEN | |
10777 | IF(MINT(82).EQ.1) NGEN(0,1)=NGEN(0,1)-1 | |
10778 | IF(MINT(82).EQ.1) NGEN(ISUB,1)=NGEN(ISUB,1)-1 | |
10779 | ISUB=95 | |
10780 | MINT(1)=ISUB | |
10781 | VINT(21)=0.01D0*VINT(149) | |
10782 | VINT(22)=0D0 | |
10783 | VINT(23)=0D0 | |
10784 | VINT(25)=0.01D0*VINT(149) | |
10785 | ||
10786 | ELSE | |
10787 | C...Multiple interactions (first semihard interaction). | |
10788 | C...Choose tau and y*. Calculate cos(theta-hat). | |
10789 | IF(PYR(0).LE.COEF(ISUB,1)) THEN | |
10790 | TAUT=(2D0*(1D0+SQRT(1D0-XT2))/XT2-1D0)**PYR(0) | |
10791 | TAU=XT2*(1D0+TAUT)**2/(4D0*TAUT) | |
10792 | ELSE | |
10793 | TAU=XT2*(1D0+TAN(PYR(0)*ATAN(SQRT(1D0/XT2-1D0)))**2) | |
10794 | ENDIF | |
10795 | VINT(21)=TAU | |
10796 | CALL PYKLIM(2) | |
10797 | RYST=PYR(0) | |
10798 | MYST=1 | |
10799 | IF(RYST.GT.COEF(ISUB,8)) MYST=2 | |
10800 | IF(RYST.GT.COEF(ISUB,8)+COEF(ISUB,9)) MYST=3 | |
10801 | CALL PYKMAP(2,MYST,PYR(0)) | |
10802 | VINT(23)=SQRT(MAX(0D0,1D0-XT2/TAU))*(-1)**INT(1.5D0+PYR(0)) | |
10803 | ENDIF | |
10804 | VINT(71)=0.5D0*VINT(1)*SQRT(VINT(25)) | |
10805 | ||
10806 | C...Store results of cross-section calculation. | |
10807 | ELSEIF(MMUL.EQ.4) THEN | |
10808 | ISUB=MINT(1) | |
10809 | XTS=VINT(25) | |
10810 | IF(ISET(ISUB).EQ.1) XTS=VINT(21) | |
10811 | IF(ISET(ISUB).EQ.2) | |
10812 | & XTS=(4D0*VINT(48)+2D0*VINT(63)+2D0*VINT(64))/VINT(2) | |
10813 | IF(ISET(ISUB).GE.3.AND.ISET(ISUB).LE.5) XTS=VINT(26) | |
10814 | RBIN=MAX(0.000001D0,MIN(0.999999D0,XTS*(1D0+VINT(149))/ | |
10815 | & (XTS+VINT(149)))) | |
10816 | IRBIN=INT(1D0+20D0*RBIN) | |
10817 | IF(ISUB.EQ.96.AND.MSTP(171).EQ.0) THEN | |
10818 | NMUL(IRBIN)=NMUL(IRBIN)+1 | |
10819 | SIGM(IRBIN)=SIGM(IRBIN)+VINT(153) | |
10820 | ENDIF | |
10821 | ||
10822 | C...Choose impact parameter. | |
10823 | ELSEIF(MMUL.EQ.5) THEN | |
10824 | IF(MSTP(82).EQ.3) THEN | |
10825 | VINT(148)=PYR(0)/(PARU(2)*VINT(147)) | |
10826 | ELSE | |
10827 | RTYPE=PYR(0) | |
10828 | CQ2=PARP(84)**2 | |
10829 | IF(RTYPE.LT.(1D0-PARP(83))**2) THEN | |
10830 | B2=-LOG(PYR(0)) | |
10831 | ELSEIF(RTYPE.LT.1D0-PARP(83)**2) THEN | |
10832 | B2=-0.5D0*(1D0+CQ2)*LOG(PYR(0)) | |
10833 | ELSE | |
10834 | B2=-CQ2*LOG(PYR(0)) | |
10835 | ENDIF | |
10836 | VINT(148)=((1D0-PARP(83))**2*EXP(-MIN(50D0,B2))+2D0*PARP(83)* | |
10837 | & (1D0-PARP(83))*2D0/(1D0+CQ2)*EXP(-MIN(50D0,B2*2D0/(1D0+CQ2)))+ | |
10838 | & PARP(83)**2/CQ2*EXP(-MIN(50D0,B2/CQ2)))/(PARU(2)*VINT(147)) | |
10839 | ENDIF | |
10840 | ||
10841 | C...Multiple interactions (variable impact parameter) : reject with | |
10842 | C...probability exp(-overlap*cross-section above pT/normalization). | |
10843 | RNCOR=(IRBIN-20D0*RBIN)*NMUL(IRBIN) | |
10844 | SIGCOR=(IRBIN-20D0*RBIN)*SIGM(IRBIN) | |
10845 | DO 150 IBIN=IRBIN+1,20 | |
10846 | RNCOR=RNCOR+NMUL(IBIN) | |
10847 | SIGCOR=SIGCOR+SIGM(IBIN) | |
10848 | 150 CONTINUE | |
10849 | SIGABV=(SIGCOR/RNCOR)*VINT(149)*(1D0-XTS)/(XTS+VINT(149)) | |
10850 | IF(MSTP(171).EQ.1) SIGABV=SIGABV*VINT(2)/VINT(289) | |
10851 | VINT(150)=EXP(-MIN(50D0,VINT(146)*VINT(148)* | |
10852 | & SIGABV/SIGT(0,0,5))) | |
10853 | ||
10854 | C...Generate additional multiple semihard interactions. | |
10855 | ELSEIF(MMUL.EQ.6) THEN | |
10856 | ISUBSV=MINT(1) | |
10857 | DO 160 J=11,80 | |
10858 | VINTSV(J)=VINT(J) | |
10859 | 160 CONTINUE | |
10860 | ISUB=96 | |
10861 | MINT(1)=96 | |
10862 | ||
10863 | C...Reconstruct strings in hard scattering. | |
10864 | NMAX=MINT(84)+4 | |
10865 | IF(ISET(ISUBSV).EQ.1) NMAX=MINT(84)+2 | |
10866 | IF(ISET(ISUBSV).EQ.11) NMAX=MINT(84)+2+MINT(3) | |
10867 | NSTR=0 | |
10868 | DO 180 I=MINT(84)+1,NMAX | |
10869 | KCS=KCHG(PYCOMP(K(I,2)),2)*ISIGN(1,K(I,2)) | |
10870 | IF(KCS.EQ.0) GOTO 180 | |
10871 | ||
10872 | DO 170 J=1,4 | |
10873 | IF(KCS.EQ.1.AND.(J.EQ.2.OR.J.EQ.4)) GOTO 170 | |
10874 | IF(KCS.EQ.-1.AND.(J.EQ.1.OR.J.EQ.3)) GOTO 170 | |
10875 | IF(J.LE.2) THEN | |
10876 | IST=MOD(K(I,J+3)/MSTU(5),MSTU(5)) | |
10877 | ELSE | |
10878 | IST=MOD(K(I,J+1),MSTU(5)) | |
10879 | ENDIF | |
10880 | IF(IST.LT.MINT(84).OR.IST.GT.I) GOTO 170 | |
10881 | IF(KCHG(PYCOMP(K(IST,2)),2).EQ.0) GOTO 170 | |
10882 | NSTR=NSTR+1 | |
10883 | IF(J.EQ.1.OR.J.EQ.4) THEN | |
10884 | KSTR(NSTR,1)=I | |
10885 | KSTR(NSTR,2)=IST | |
10886 | ELSE | |
10887 | KSTR(NSTR,1)=IST | |
10888 | KSTR(NSTR,2)=I | |
10889 | ENDIF | |
10890 | 170 CONTINUE | |
10891 | 180 CONTINUE | |
10892 | ||
10893 | C...Set up starting values for iteration in xT2. | |
10894 | XT2=VINT(25) | |
10895 | IF(ISET(ISUBSV).EQ.1) XT2=VINT(21) | |
10896 | IF(ISET(ISUBSV).EQ.2) | |
10897 | & XT2=(4D0*VINT(48)+2D0*VINT(63)+2D0*VINT(64))/VINT(2) | |
10898 | IF(ISET(ISUBSV).GE.3.AND.ISET(ISUBSV).LE.5) XT2=VINT(26) | |
10899 | IF(MSTP(82).LE.1) THEN | |
10900 | XT2FAC=XSEC(ISUB,1)*VINT(149)/((1D0-VINT(149))*SIGT(0,0,5)) | |
10901 | ELSE | |
10902 | XT2FAC=VINT(146)*VINT(148)*XSEC(ISUB,1)/SIGT(0,0,5)* | |
10903 | & VINT(149)*(1D0+VINT(149)) | |
10904 | ENDIF | |
10905 | VINT(63)=0D0 | |
10906 | VINT(64)=0D0 | |
10907 | VINT(143)=1D0-VINT(141) | |
10908 | VINT(144)=1D0-VINT(142) | |
10909 | ||
10910 | C...Iterate downwards in xT2. | |
10911 | 190 IF(MSTP(82).LE.1) THEN | |
10912 | XT2=XT2FAC*XT2/(XT2FAC-XT2*LOG(PYR(0))) | |
10913 | IF(XT2.LT.VINT(149)) GOTO 240 | |
10914 | ELSE | |
10915 | IF(XT2.LE.0.01001D0*VINT(149)) GOTO 240 | |
10916 | XT2=XT2FAC*(XT2+VINT(149))/(XT2FAC-(XT2+VINT(149))* | |
10917 | & LOG(PYR(0)))-VINT(149) | |
10918 | IF(XT2.LE.0D0) GOTO 240 | |
10919 | XT2=MAX(0.01D0*VINT(149),XT2) | |
10920 | ENDIF | |
10921 | VINT(25)=XT2 | |
10922 | ||
10923 | C...Choose tau and y*. Calculate cos(theta-hat). | |
10924 | IF(PYR(0).LE.COEF(ISUB,1)) THEN | |
10925 | TAUT=(2D0*(1D0+SQRT(1D0-XT2))/XT2-1D0)**PYR(0) | |
10926 | TAU=XT2*(1D0+TAUT)**2/(4D0*TAUT) | |
10927 | ELSE | |
10928 | TAU=XT2*(1D0+TAN(PYR(0)*ATAN(SQRT(1D0/XT2-1D0)))**2) | |
10929 | ENDIF | |
10930 | VINT(21)=TAU | |
10931 | CALL PYKLIM(2) | |
10932 | RYST=PYR(0) | |
10933 | MYST=1 | |
10934 | IF(RYST.GT.COEF(ISUB,8)) MYST=2 | |
10935 | IF(RYST.GT.COEF(ISUB,8)+COEF(ISUB,9)) MYST=3 | |
10936 | CALL PYKMAP(2,MYST,PYR(0)) | |
10937 | VINT(23)=SQRT(MAX(0D0,1D0-XT2/TAU))*(-1)**INT(1.5D0+PYR(0)) | |
10938 | ||
10939 | C...Check that x not used up. Accept or reject kinematical variables. | |
10940 | X1M=SQRT(TAU)*EXP(VINT(22)) | |
10941 | X2M=SQRT(TAU)*EXP(-VINT(22)) | |
10942 | IF(VINT(143)-X1M.LT.0.01D0.OR.VINT(144)-X2M.LT.0.01D0) GOTO 190 | |
10943 | VINT(71)=0.5D0*VINT(1)*SQRT(XT2) | |
10944 | CALL PYSIGH(NCHN,SIGS) | |
10945 | IF(SIGS.LT.XSEC(ISUB,1)*PYR(0)) GOTO 190 | |
10946 | ||
10947 | C...Reset K, P and V vectors. Select some variables. | |
10948 | DO 210 I=N+1,N+2 | |
10949 | DO 200 J=1,5 | |
10950 | K(I,J)=0 | |
10951 | P(I,J)=0D0 | |
10952 | V(I,J)=0D0 | |
10953 | 200 CONTINUE | |
10954 | 210 CONTINUE | |
10955 | RFLAV=PYR(0) | |
10956 | PT=0.5D0*VINT(1)*SQRT(XT2) | |
10957 | PHI=PARU(2)*PYR(0) | |
10958 | CTH=VINT(23) | |
10959 | ||
10960 | C...Add first parton to event record. | |
10961 | K(N+1,1)=3 | |
10962 | K(N+1,2)=21 | |
10963 | IF(RFLAV.GE.MAX(PARP(85),PARP(86))) K(N+1,2)= | |
10964 | & 1+INT((2D0+PARJ(2))*PYR(0)) | |
10965 | P(N+1,1)=PT*COS(PHI) | |
10966 | P(N+1,2)=PT*SIN(PHI) | |
10967 | P(N+1,3)=0.25D0*VINT(1)*(VINT(41)*(1D0+CTH)-VINT(42)*(1D0-CTH)) | |
10968 | P(N+1,4)=0.25D0*VINT(1)*(VINT(41)*(1D0+CTH)+VINT(42)*(1D0-CTH)) | |
10969 | P(N+1,5)=0D0 | |
10970 | ||
10971 | C...Add second parton to event record. | |
10972 | K(N+2,1)=3 | |
10973 | K(N+2,2)=21 | |
10974 | IF(K(N+1,2).NE.21) K(N+2,2)=-K(N+1,2) | |
10975 | P(N+2,1)=-P(N+1,1) | |
10976 | P(N+2,2)=-P(N+1,2) | |
10977 | P(N+2,3)=0.25D0*VINT(1)*(VINT(41)*(1D0-CTH)-VINT(42)*(1D0+CTH)) | |
10978 | P(N+2,4)=0.25D0*VINT(1)*(VINT(41)*(1D0-CTH)+VINT(42)*(1D0+CTH)) | |
10979 | P(N+2,5)=0D0 | |
10980 | ||
10981 | IF(RFLAV.LT.PARP(85).AND.NSTR.GE.1) THEN | |
10982 | C....Choose relevant string pieces to place gluons on. | |
10983 | DO 230 I=N+1,N+2 | |
10984 | DMIN=1D8 | |
10985 | DO 220 ISTR=1,NSTR | |
10986 | I1=KSTR(ISTR,1) | |
10987 | I2=KSTR(ISTR,2) | |
10988 | DIST=(P(I,4)*P(I1,4)-P(I,1)*P(I1,1)-P(I,2)*P(I1,2)- | |
10989 | & P(I,3)*P(I1,3))*(P(I,4)*P(I2,4)-P(I,1)*P(I2,1)- | |
10990 | & P(I,2)*P(I2,2)-P(I,3)*P(I2,3))/MAX(1D0,P(I1,4)*P(I2,4)- | |
10991 | & P(I1,1)*P(I2,1)-P(I1,2)*P(I2,2)-P(I1,3)*P(I2,3)) | |
10992 | IF(ISTR.EQ.1.OR.DIST.LT.DMIN) THEN | |
10993 | DMIN=DIST | |
10994 | IST1=I1 | |
10995 | IST2=I2 | |
10996 | ISTM=ISTR | |
10997 | ENDIF | |
10998 | 220 CONTINUE | |
10999 | ||
11000 | C....Colour flow adjustments, new string pieces. | |
11001 | IF(K(IST1,4)/MSTU(5).EQ.IST2) K(IST1,4)=MSTU(5)*I+ | |
11002 | & MOD(K(IST1,4),MSTU(5)) | |
11003 | IF(MOD(K(IST1,5),MSTU(5)).EQ.IST2) K(IST1,5)= | |
11004 | & MSTU(5)*(K(IST1,5)/MSTU(5))+I | |
11005 | K(I,5)=MSTU(5)*IST1 | |
11006 | K(I,4)=MSTU(5)*IST2 | |
11007 | IF(K(IST2,5)/MSTU(5).EQ.IST1) K(IST2,5)=MSTU(5)*I+ | |
11008 | & MOD(K(IST2,5),MSTU(5)) | |
11009 | IF(MOD(K(IST2,4),MSTU(5)).EQ.IST1) K(IST2,4)= | |
11010 | & MSTU(5)*(K(IST2,4)/MSTU(5))+I | |
11011 | KSTR(ISTM,2)=I | |
11012 | KSTR(NSTR+1,1)=I | |
11013 | KSTR(NSTR+1,2)=IST2 | |
11014 | NSTR=NSTR+1 | |
11015 | 230 CONTINUE | |
11016 | ||
11017 | C...String drawing and colour flow for gluon loop. | |
11018 | ELSEIF(K(N+1,2).EQ.21) THEN | |
11019 | K(N+1,4)=MSTU(5)*(N+2) | |
11020 | K(N+1,5)=MSTU(5)*(N+2) | |
11021 | K(N+2,4)=MSTU(5)*(N+1) | |
11022 | K(N+2,5)=MSTU(5)*(N+1) | |
11023 | KSTR(NSTR+1,1)=N+1 | |
11024 | KSTR(NSTR+1,2)=N+2 | |
11025 | KSTR(NSTR+2,1)=N+2 | |
11026 | KSTR(NSTR+2,2)=N+1 | |
11027 | NSTR=NSTR+2 | |
11028 | ||
11029 | C...String drawing and colour flow for qqbar pair. | |
11030 | ELSE | |
11031 | K(N+1,4)=MSTU(5)*(N+2) | |
11032 | K(N+2,5)=MSTU(5)*(N+1) | |
11033 | KSTR(NSTR+1,1)=N+1 | |
11034 | KSTR(NSTR+1,2)=N+2 | |
11035 | NSTR=NSTR+1 | |
11036 | ENDIF | |
11037 | ||
11038 | C...Update remaining energy; iterate. | |
11039 | N=N+2 | |
11040 | IF(N.GT.MSTU(4)-MSTU(32)-10) THEN | |
11041 | CALL PYERRM(11,'(PYMULT:) no more memory left in PYJETS') | |
11042 | IF(MSTU(21).GE.1) RETURN | |
11043 | ENDIF | |
11044 | MINT(31)=MINT(31)+1 | |
11045 | VINT(151)=VINT(151)+VINT(41) | |
11046 | VINT(152)=VINT(152)+VINT(42) | |
11047 | VINT(143)=VINT(143)-VINT(41) | |
11048 | VINT(144)=VINT(144)-VINT(42) | |
11049 | IF(MINT(31).LT.240) GOTO 190 | |
11050 | 240 CONTINUE | |
11051 | MINT(1)=ISUBSV | |
11052 | DO 250 J=11,80 | |
11053 | VINT(J)=VINTSV(J) | |
11054 | 250 CONTINUE | |
11055 | ENDIF | |
11056 | ||
11057 | C...Format statements for printout. | |
11058 | 5000 FORMAT(/1X,'****** PYMULT: initialization of multiple inter', | |
11059 | &'actions for MSTP(82) =',I2,' ******') | |
11060 | 5100 FORMAT(8X,'pT0 =',F5.2,' GeV gives sigma(parton-parton) =',1P, | |
11061 | &D9.2,' mb: rejected') | |
11062 | 5200 FORMAT(8X,'pT0 =',F5.2,' GeV gives sigma(parton-parton) =',1P, | |
11063 | &D9.2,' mb: accepted') | |
11064 | ||
11065 | RETURN | |
11066 | END | |
11067 | ||
11068 | C********************************************************************* | |
11069 | ||
11070 | C...PYREMN | |
11071 | C...Adds on target remnants (one or two from each side) and | |
11072 | C...includes primordial kT for hadron beams. | |
11073 | ||
11074 | SUBROUTINE PYREMN(IPU1,IPU2) | |
11075 | ||
11076 | C...Double precision and integer declarations. | |
11077 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
11078 | INTEGER PYK,PYCHGE,PYCOMP | |
11079 | C...Commonblocks. | |
11080 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
11081 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
11082 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
11083 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
11084 | COMMON/PYINT1/MINT(400),VINT(400) | |
11085 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/ | |
11086 | C...Local arrays. | |
11087 | DIMENSION KFLCH(2),KFLSP(2),CHI(2),PMS(0:6),IS(2),ISN(2),ROBO(5), | |
11088 | &PSYS(0:2,5),PMIN(0:2),QOLD(4),QNEW(4),DBE(3),PSUM(4) | |
11089 | ||
11090 | C...Find event type and remaining energy. | |
11091 | ISUB=MINT(1) | |
11092 | NS=N | |
11093 | IF(MINT(50).EQ.0.OR.MSTP(81).LE.0) THEN | |
11094 | VINT(143)=1D0-VINT(141) | |
11095 | VINT(144)=1D0-VINT(142) | |
11096 | ENDIF | |
11097 | ||
11098 | C...Define initial partons. | |
11099 | NTRY=0 | |
11100 | 100 NTRY=NTRY+1 | |
11101 | DO 130 JT=1,2 | |
11102 | I=MINT(83)+JT+2 | |
11103 | IF(JT.EQ.1) IPU=IPU1 | |
11104 | IF(JT.EQ.2) IPU=IPU2 | |
11105 | K(I,1)=21 | |
11106 | K(I,2)=K(IPU,2) | |
11107 | K(I,3)=I-2 | |
11108 | PMS(JT)=0D0 | |
11109 | VINT(156+JT)=0D0 | |
11110 | VINT(158+JT)=0D0 | |
11111 | IF(MINT(47).EQ.1) THEN | |
11112 | DO 110 J=1,5 | |
11113 | P(I,J)=P(I-2,J) | |
11114 | 110 CONTINUE | |
11115 | ELSEIF(ISUB.EQ.95) THEN | |
11116 | K(I,2)=21 | |
11117 | ELSE | |
11118 | P(I,5)=P(IPU,5) | |
11119 | ||
11120 | C...No primordial kT, or chosen according to truncated Gaussian or | |
11121 | C...exponential, or (for photon) predetermined or power law. | |
11122 | 120 IF(MINT(40+JT).EQ.2.AND.MINT(10+JT).NE.22) THEN | |
11123 | IF(MSTP(91).LE.0) THEN | |
11124 | PT=0D0 | |
11125 | ELSEIF(MSTP(91).EQ.1) THEN | |
11126 | PT=PARP(91)*SQRT(-LOG(PYR(0))) | |
11127 | ELSE | |
11128 | RPT1=PYR(0) | |
11129 | RPT2=PYR(0) | |
11130 | PT=-PARP(92)*LOG(RPT1*RPT2) | |
11131 | ENDIF | |
11132 | IF(PT.GT.PARP(93)) GOTO 120 | |
11133 | ELSEIF(MINT(106+JT).EQ.3) THEN | |
11134 | PT=SQRT(VINT(282+JT)) | |
11135 | PT=PT*0.8D0**MINT(57) | |
11136 | IF(NTRY.GT.10) PT=PT*0.8D0**(NTRY-10) | |
11137 | ELSEIF(IABS(MINT(14+JT)).LE.8.OR.MINT(14+JT).EQ.21) THEN | |
11138 | IF(MSTP(93).LE.0) THEN | |
11139 | PT=0D0 | |
11140 | ELSEIF(MSTP(93).EQ.1) THEN | |
11141 | PT=PARP(99)*SQRT(-LOG(PYR(0))) | |
11142 | ELSEIF(MSTP(93).EQ.2) THEN | |
11143 | RPT1=PYR(0) | |
11144 | RPT2=PYR(0) | |
11145 | PT=-PARP(99)*LOG(RPT1*RPT2) | |
11146 | ELSEIF(MSTP(93).EQ.3) THEN | |
11147 | HA=PARP(99)**2 | |
11148 | HB=PARP(100)**2 | |
11149 | PT=SQRT(MAX(0D0,HA*(HA+HB)/(HA+HB-PYR(0)*HB)-HA)) | |
11150 | ELSE | |
11151 | HA=PARP(99)**2 | |
11152 | HB=PARP(100)**2 | |
11153 | IF(MSTP(93).EQ.5) HB=MIN(VINT(48),PARP(100)**2) | |
11154 | PT=SQRT(MAX(0D0,HA*((HA+HB)/HA)**PYR(0)-HA)) | |
11155 | ENDIF | |
11156 | IF(PT.GT.PARP(100)) GOTO 120 | |
11157 | ELSE | |
11158 | PT=0D0 | |
11159 | ENDIF | |
11160 | VINT(156+JT)=PT | |
11161 | PHI=PARU(2)*PYR(0) | |
11162 | P(I,1)=PT*COS(PHI) | |
11163 | P(I,2)=PT*SIN(PHI) | |
11164 | PMS(JT)=P(I,5)**2+P(I,1)**2+P(I,2)**2 | |
11165 | ENDIF | |
11166 | 130 CONTINUE | |
11167 | IF(MINT(47).EQ.1) RETURN | |
11168 | ||
11169 | C...Kinematics construction for initial partons. | |
11170 | I1=MINT(83)+3 | |
11171 | I2=MINT(83)+4 | |
11172 | IF(ISUB.EQ.95) THEN | |
11173 | SHS=0D0 | |
11174 | SHR=0D0 | |
11175 | ELSE | |
11176 | SHS=VINT(141)*VINT(142)*VINT(2)+(P(I1,1)+P(I2,1))**2+ | |
11177 | & (P(I1,2)+P(I2,2))**2 | |
11178 | SHR=SQRT(MAX(0D0,SHS)) | |
11179 | IF((SHS-PMS(1)-PMS(2))**2-4D0*PMS(1)*PMS(2).LE.0D0) GOTO 100 | |
11180 | P(I1,4)=0.5D0*(SHR+(PMS(1)-PMS(2))/SHR) | |
11181 | P(I1,3)=SQRT(MAX(0D0,P(I1,4)**2-PMS(1))) | |
11182 | P(I2,4)=SHR-P(I1,4) | |
11183 | P(I2,3)=-P(I1,3) | |
11184 | ||
11185 | C...Transform partons to overall CM-frame. | |
11186 | ROBO(3)=(P(I1,1)+P(I2,1))/SHR | |
11187 | ROBO(4)=(P(I1,2)+P(I2,2))/SHR | |
11188 | CALL PYROBO(I1,I2,0D0,0D0,-ROBO(3),-ROBO(4),0D0) | |
11189 | ROBO(2)=PYANGL(P(I1,1),P(I1,2)) | |
11190 | CALL PYROBO(I1,I2,0D0,-ROBO(2),0D0,0D0,0D0) | |
11191 | ROBO(1)=PYANGL(P(I1,3),P(I1,1)) | |
11192 | CALL PYROBO(I1,I2,-ROBO(1),0D0,0D0,0D0,0D0) | |
11193 | CALL PYROBO(I1,MINT(52),ROBO(1),ROBO(2),ROBO(3),ROBO(4),0D0) | |
11194 | ROBO(5)=MAX(-0.999999D0,MIN(0.999999D0,(VINT(141)-VINT(142))/ | |
11195 | & (VINT(141)+VINT(142)))) | |
11196 | CALL PYROBO(I1,MINT(52),0D0,0D0,0D0,0D0,ROBO(5)) | |
11197 | ENDIF | |
11198 | ||
11199 | C...Optionally fix up x and Q2 definitions for leptoproduction. | |
11200 | IDISXQ=0 | |
11201 | IF((MINT(43).EQ.2.OR.MINT(43).EQ.3).AND.((ISUB.EQ.10.AND. | |
11202 | &MSTP(23).GE.1).OR.(ISUB.EQ.83.AND.MSTP(23).GE.2))) IDISXQ=1 | |
11203 | IF(IDISXQ.EQ.1) THEN | |
11204 | ||
11205 | C...Find where incoming and outgoing leptons/partons are sitting. | |
11206 | LESD=1 | |
11207 | IF(MINT(42).EQ.1) LESD=2 | |
11208 | LPIN=MINT(83)+3-LESD | |
11209 | LEIN=MINT(84)+LESD | |
11210 | LQIN=MINT(84)+3-LESD | |
11211 | LEOUT=MINT(84)+2+LESD | |
11212 | LQOUT=MINT(84)+5-LESD | |
11213 | IF(K(LEIN,3).GT.LEIN) LEIN=K(LEIN,3) | |
11214 | IF(K(LQIN,3).GT.LQIN) LQIN=K(LQIN,3) | |
11215 | LSCMS=0 | |
11216 | DO 140 I=MINT(84)+5,N | |
11217 | IF(K(I,2).EQ.94) THEN | |
11218 | LSCMS=I | |
11219 | LEOUT=I+LESD | |
11220 | LQOUT=I+3-LESD | |
11221 | ENDIF | |
11222 | 140 CONTINUE | |
11223 | LQBG=IPU1 | |
11224 | IF(LESD.EQ.1) LQBG=IPU2 | |
11225 | ||
11226 | C...Calculate actual and wanted momentum transfer. | |
11227 | XNOM=VINT(43-LESD) | |
11228 | Q2NOM=-VINT(45) | |
11229 | HPK=2D0*(P(LPIN,4)*P(LEIN,4)-P(LPIN,1)*P(LEIN,1)- | |
11230 | & P(LPIN,2)*P(LEIN,2)-P(LPIN,3)*P(LEIN,3))* | |
11231 | & (P(MINT(83)+LESD,4)*VINT(40+LESD)/P(LEIN,4)) | |
11232 | HPT2=MAX(0D0,Q2NOM*(1D0-Q2NOM/(XNOM*HPK))) | |
11233 | FAC=SQRT(HPT2/(P(LEOUT,1)**2+P(LEOUT,2)**2)) | |
11234 | P(N+1,1)=FAC*P(LEOUT,1) | |
11235 | P(N+1,2)=FAC*P(LEOUT,2) | |
11236 | P(N+1,3)=0.25D0*((HPK-Q2NOM/XNOM)/P(LPIN,4)- | |
11237 | & Q2NOM/(P(MINT(83)+LESD,4)*VINT(40+LESD)))*(-1)**(LESD+1) | |
11238 | P(N+1,4)=SQRT(P(LEOUT,5)**2+P(N+1,1)**2+P(N+1,2)**2+ | |
11239 | & P(N+1,3)**2) | |
11240 | DO 150 J=1,4 | |
11241 | QOLD(J)=P(LEIN,J)-P(LEOUT,J) | |
11242 | QNEW(J)=P(LEIN,J)-P(N+1,J) | |
11243 | 150 CONTINUE | |
11244 | ||
11245 | C...Boost outgoing electron and daughters. | |
11246 | IF(LSCMS.EQ.0) THEN | |
11247 | DO 160 J=1,4 | |
11248 | P(LEOUT,J)=P(N+1,J) | |
11249 | 160 CONTINUE | |
11250 | ELSE | |
11251 | DO 170 J=1,3 | |
11252 | P(N+2,J)=(P(N+1,J)-P(LEOUT,J))/(P(N+1,4)+P(LEOUT,4)) | |
11253 | 170 CONTINUE | |
11254 | PINV=2D0/(1D0+P(N+2,1)**2+P(N+2,2)**2+P(N+2,3)**2) | |
11255 | DO 180 J=1,3 | |
11256 | DBE(J)=PINV*P(N+2,J) | |
11257 | 180 CONTINUE | |
11258 | DO 200 I=LSCMS+1,N | |
11259 | IORIG=I | |
11260 | 190 IORIG=K(IORIG,3) | |
11261 | IF(IORIG.GT.LEOUT) GOTO 190 | |
11262 | IF(I.EQ.LEOUT.OR.IORIG.EQ.LEOUT) | |
11263 | & CALL PYROBO(I,I,0D0,0D0,DBE(1),DBE(2),DBE(3)) | |
11264 | 200 CONTINUE | |
11265 | ENDIF | |
11266 | ||
11267 | C...Copy shower initiator and all outgoing partons. | |
11268 | NCOP=N+1 | |
11269 | K(NCOP,3)=LQBG | |
11270 | DO 210 J=1,5 | |
11271 | P(NCOP,J)=P(LQBG,J) | |
11272 | 210 CONTINUE | |
11273 | DO 240 I=MINT(84)+1,N | |
11274 | ICOP=0 | |
11275 | IF(K(I,1).GT.10) GOTO 240 | |
11276 | IF(I.EQ.LQBG.OR.I.EQ.LQOUT) THEN | |
11277 | ICOP=I | |
11278 | ELSE | |
11279 | IORIG=I | |
11280 | 220 IORIG=K(IORIG,3) | |
11281 | IF(IORIG.EQ.LQBG.OR.IORIG.EQ.LQOUT) THEN | |
11282 | ICOP=IORIG | |
11283 | ELSEIF(IORIG.GT.MINT(84).AND.IORIG.LE.N) THEN | |
11284 | GOTO 220 | |
11285 | ENDIF | |
11286 | ENDIF | |
11287 | IF(ICOP.NE.0) THEN | |
11288 | NCOP=NCOP+1 | |
11289 | K(NCOP,3)=I | |
11290 | DO 230 J=1,5 | |
11291 | P(NCOP,J)=P(I,J) | |
11292 | 230 CONTINUE | |
11293 | ENDIF | |
11294 | 240 CONTINUE | |
11295 | ||
11296 | C...Calculate relative rescaling factors. | |
11297 | SLC=3-2*LESD | |
11298 | PLCSUM=0D0 | |
11299 | DO 250 I=N+2,NCOP | |
11300 | PLCSUM=PLCSUM+(P(I,4)+SLC*P(I,3)) | |
11301 | 250 CONTINUE | |
11302 | DO 260 I=N+2,NCOP | |
11303 | V(I,1)=(P(I,4)+SLC*P(I,3))/PLCSUM | |
11304 | 260 CONTINUE | |
11305 | ||
11306 | C...Transfer extra three-momentum of current. | |
11307 | DO 280 I=N+2,NCOP | |
11308 | DO 270 J=1,3 | |
11309 | P(I,J)=P(I,J)+V(I,1)*(QNEW(J)-QOLD(J)) | |
11310 | 270 CONTINUE | |
11311 | P(I,4)=SQRT(P(I,5)**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
11312 | 280 CONTINUE | |
11313 | ||
11314 | C...Iterate change of initiator momentum to get energy right. | |
11315 | ITER=0 | |
11316 | 290 ITER=ITER+1 | |
11317 | PEEX=-P(N+1,4)-QNEW(4) | |
11318 | PEMV=-P(N+1,3)/P(N+1,4) | |
11319 | DO 300 I=N+2,NCOP | |
11320 | PEEX=PEEX+P(I,4) | |
11321 | PEMV=PEMV+V(I,1)*P(I,3)/P(I,4) | |
11322 | 300 CONTINUE | |
11323 | IF(ABS(PEMV).LT.1D-10) THEN | |
11324 | MINT(51)=1 | |
11325 | MINT(57)=MINT(57)+1 | |
11326 | RETURN | |
11327 | ENDIF | |
11328 | PZCH=-PEEX/PEMV | |
11329 | P(N+1,3)=P(N+1,3)+PZCH | |
11330 | P(N+1,4)=SQRT(P(N+1,5)**2+P(N+1,1)**2+P(N+1,2)**2+P(N+1,3)**2) | |
11331 | DO 310 I=N+2,NCOP | |
11332 | P(I,3)=P(I,3)+V(I,1)*PZCH | |
11333 | P(I,4)=SQRT(P(I,5)**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
11334 | 310 CONTINUE | |
11335 | IF(ITER.LT.10.AND.ABS(PEEX).GT.1D-6*P(N+1,4)) GOTO 290 | |
11336 | ||
11337 | C...Modify momenta in event record. | |
11338 | HBE=2D0*(P(N+1,4)+P(LQBG,4))*(P(N+1,3)-P(LQBG,3))/ | |
11339 | & ((P(N+1,4)+P(LQBG,4))**2+(P(N+1,3)-P(LQBG,3))**2) | |
11340 | IF(ABS(HBE).GT.0.999999D0) THEN | |
11341 | MINT(51)=1 | |
11342 | MINT(57)=MINT(57)+1 | |
11343 | RETURN | |
11344 | ENDIF | |
11345 | I=MINT(83)+5-LESD | |
11346 | CALL PYROBO(I,I,0D0,0D0,0D0,0D0,HBE) | |
11347 | DO 330 I=N+1,NCOP | |
11348 | ICOP=K(I,3) | |
11349 | DO 320 J=1,4 | |
11350 | P(ICOP,J)=P(I,J) | |
11351 | 320 CONTINUE | |
11352 | 330 CONTINUE | |
11353 | ENDIF | |
11354 | ||
11355 | C...Check minimum invariant mass of remnant system(s). | |
11356 | PSYS(0,4)=P(I1,4)+P(I2,4)+0.5D0*VINT(1)*(VINT(151)+VINT(152)) | |
11357 | PSYS(0,3)=P(I1,3)+P(I2,3)+0.5D0*VINT(1)*(VINT(151)-VINT(152)) | |
11358 | PMS(0)=MAX(0D0,PSYS(0,4)**2-PSYS(0,3)**2) | |
11359 | PMIN(0)=SQRT(PMS(0)) | |
11360 | DO 340 JT=1,2 | |
11361 | PSYS(JT,4)=0.5D0*VINT(1)*VINT(142+JT) | |
11362 | PSYS(JT,3)=PSYS(JT,4)*(-1)**(JT-1) | |
11363 | PMIN(JT)=0D0 | |
11364 | IF(MINT(44+JT).EQ.1) GOTO 340 | |
11365 | MINT(105)=MINT(102+JT) | |
11366 | MINT(109)=MINT(106+JT) | |
11367 | CALL PYSPLI(MINT(10+JT),MINT(12+JT),KFLCH(JT),KFLSP(JT)) | |
11368 | IF(KFLCH(JT).NE.0) PMIN(JT)=PMIN(JT)+PYMASS(KFLCH(JT)) | |
11369 | IF(KFLSP(JT).NE.0) PMIN(JT)=PMIN(JT)+PYMASS(KFLSP(JT)) | |
11370 | IF(KFLCH(JT)*KFLSP(JT).NE.0) PMIN(JT)=PMIN(JT)+0.5D0*PARP(111) | |
11371 | PMIN(JT)=SQRT(PMIN(JT)**2+P(MINT(83)+JT+2,1)**2+ | |
11372 | & P(MINT(83)+JT+2,2)**2) | |
11373 | 340 CONTINUE | |
11374 | IF(PMIN(0)+PMIN(1)+PMIN(2).GT.VINT(1).OR.(MINT(45).GE.2.AND. | |
11375 | &PMIN(1).GT.PSYS(1,4)).OR.(MINT(46).GE.2.AND.PMIN(2).GT. | |
11376 | &PSYS(2,4))) THEN | |
11377 | MINT(51)=1 | |
11378 | MINT(57)=MINT(57)+1 | |
11379 | RETURN | |
11380 | ENDIF | |
11381 | ||
11382 | C...Loop over two remnants; skip if none there. | |
11383 | I=NS | |
11384 | DO 410 JT=1,2 | |
11385 | ISN(JT)=0 | |
11386 | IF(MINT(44+JT).EQ.1) GOTO 410 | |
11387 | IF(JT.EQ.1) IPU=IPU1 | |
11388 | IF(JT.EQ.2) IPU=IPU2 | |
11389 | ||
11390 | C...Store first remnant parton. | |
11391 | I=I+1 | |
11392 | IS(JT)=I | |
11393 | ISN(JT)=1 | |
11394 | DO 350 J=1,5 | |
11395 | K(I,J)=0 | |
11396 | P(I,J)=0D0 | |
11397 | V(I,J)=0D0 | |
11398 | 350 CONTINUE | |
11399 | K(I,1)=1 | |
11400 | K(I,2)=KFLSP(JT) | |
11401 | K(I,3)=MINT(83)+JT | |
11402 | P(I,5)=PYMASS(K(I,2)) | |
11403 | ||
11404 | C...First parton colour connections and kinematics. | |
11405 | KCOL=KCHG(PYCOMP(KFLSP(JT)),2) | |
11406 | IF(KCOL.EQ.2) THEN | |
11407 | K(I,1)=3 | |
11408 | K(I,4)=MSTU(5)*IPU+IPU | |
11409 | K(I,5)=MSTU(5)*IPU+IPU | |
11410 | K(IPU,4)=MOD(K(IPU,4),MSTU(5))+MSTU(5)*I | |
11411 | K(IPU,5)=MOD(K(IPU,5),MSTU(5))+MSTU(5)*I | |
11412 | ELSEIF(KCOL.NE.0) THEN | |
11413 | K(I,1)=3 | |
11414 | KFLS=(3-KCOL*ISIGN(1,KFLSP(JT)))/2 | |
11415 | K(I,KFLS+3)=IPU | |
11416 | K(IPU,6-KFLS)=MOD(K(IPU,6-KFLS),MSTU(5))+MSTU(5)*I | |
11417 | ENDIF | |
11418 | IF(KFLCH(JT).EQ.0) THEN | |
11419 | P(I,1)=-P(MINT(83)+JT+2,1) | |
11420 | P(I,2)=-P(MINT(83)+JT+2,2) | |
11421 | PMS(JT)=P(I,5)**2+P(I,1)**2+P(I,2)**2 | |
11422 | PSYS(JT,3)=SQRT(MAX(0D0,PSYS(JT,4)**2-PMS(JT)))*(-1)**(JT-1) | |
11423 | P(I,3)=PSYS(JT,3) | |
11424 | P(I,4)=PSYS(JT,4) | |
11425 | ||
11426 | C...When extra remnant parton or hadron: store extra remnant. | |
11427 | ELSE | |
11428 | I=I+1 | |
11429 | ISN(JT)=2 | |
11430 | DO 360 J=1,5 | |
11431 | K(I,J)=0 | |
11432 | P(I,J)=0D0 | |
11433 | V(I,J)=0D0 | |
11434 | 360 CONTINUE | |
11435 | K(I,1)=1 | |
11436 | K(I,2)=KFLCH(JT) | |
11437 | K(I,3)=MINT(83)+JT | |
11438 | P(I,5)=PYMASS(K(I,2)) | |
11439 | ||
11440 | C...Find parton colour connections of extra remnant. | |
11441 | KCOL=KCHG(PYCOMP(KFLCH(JT)),2) | |
11442 | IF(KCOL.EQ.2) THEN | |
11443 | K(I,1)=3 | |
11444 | K(I,4)=MSTU(5)*IPU+IPU | |
11445 | K(I,5)=MSTU(5)*IPU+IPU | |
11446 | K(IPU,4)=MOD(K(IPU,4),MSTU(5))+MSTU(5)*I | |
11447 | K(IPU,5)=MOD(K(IPU,5),MSTU(5))+MSTU(5)*I | |
11448 | ELSEIF(KCOL.NE.0) THEN | |
11449 | K(I,1)=3 | |
11450 | KFLS=(3-KCOL*ISIGN(1,KFLCH(JT)))/2 | |
11451 | K(I,KFLS+3)=IPU | |
11452 | K(IPU,6-KFLS)=MOD(K(IPU,6-KFLS),MSTU(5))+MSTU(5)*I | |
11453 | ENDIF | |
11454 | ||
11455 | C...Relative transverse momentum when two remnants. | |
11456 | LOOP=0 | |
11457 | 370 LOOP=LOOP+1 | |
11458 | CALL PYPTDI(1,P(I-1,1),P(I-1,2)) | |
11459 | IF(IABS(MINT(10+JT)).LT.20) THEN | |
11460 | P(I-1,1)=0D0 | |
11461 | P(I-1,2)=0D0 | |
11462 | ENDIF | |
11463 | PMS(JT+2)=P(I-1,5)**2+P(I-1,1)**2+P(I-1,2)**2 | |
11464 | P(I,1)=-P(MINT(83)+JT+2,1)-P(I-1,1) | |
11465 | P(I,2)=-P(MINT(83)+JT+2,2)-P(I-1,2) | |
11466 | PMS(JT+4)=P(I,5)**2+P(I,1)**2+P(I,2)**2 | |
11467 | ||
11468 | C...Meson or baryon; photon as meson. For splitup below. | |
11469 | IMB=1 | |
11470 | IF(MOD(MINT(10+JT)/1000,10).NE.0) IMB=2 | |
11471 | ||
11472 | C***Relative distribution for electron into two electrons. Temporary! | |
11473 | IF(IABS(MINT(10+JT)).LT.20.AND.MINT(14+JT).EQ.-MINT(10+JT)) | |
11474 | & THEN | |
11475 | CHI(JT)=PYR(0) | |
11476 | ||
11477 | C...Relative distribution of electron energy into electron plus parton. | |
11478 | ELSEIF(IABS(MINT(10+JT)).LT.20) THEN | |
11479 | XHRD=VINT(140+JT) | |
11480 | XE=VINT(154+JT) | |
11481 | CHI(JT)=(XE-XHRD)/(1D0-XHRD) | |
11482 | ||
11483 | C...Relative distribution of energy for particle into two jets. | |
11484 | ELSEIF(IABS(KFLCH(JT)).LE.10.OR.KFLCH(JT).EQ.21) THEN | |
11485 | CHIK=PARP(92+2*IMB) | |
11486 | IF(MSTP(92).LE.1) THEN | |
11487 | IF(IMB.EQ.1) CHI(JT)=PYR(0) | |
11488 | IF(IMB.EQ.2) CHI(JT)=1D0-SQRT(PYR(0)) | |
11489 | ELSEIF(MSTP(92).EQ.2) THEN | |
11490 | CHI(JT)=1D0-PYR(0)**(1D0/(1D0+CHIK)) | |
11491 | ELSEIF(MSTP(92).EQ.3) THEN | |
11492 | CUT=2D0*0.3D0/VINT(1) | |
11493 | 380 CHI(JT)=PYR(0)**2 | |
11494 | IF((CHI(JT)**2/(CHI(JT)**2+CUT**2))**0.25D0* | |
11495 | & (1D0-CHI(JT))**CHIK.LT.PYR(0)) GOTO 380 | |
11496 | ELSEIF(MSTP(92).EQ.4) THEN | |
11497 | CUT=2D0*0.3D0/VINT(1) | |
11498 | CUTR=(1D0+SQRT(1D0+CUT**2))/CUT | |
11499 | 390 CHIR=CUT*CUTR**PYR(0) | |
11500 | CHI(JT)=(CHIR**2-CUT**2)/(2D0*CHIR) | |
11501 | IF((1D0-CHI(JT))**CHIK.LT.PYR(0)) GOTO 390 | |
11502 | ELSE | |
11503 | CUT=2D0*0.3D0/VINT(1) | |
11504 | CUTA=CUT**(1D0-PARP(98)) | |
11505 | CUTB=(1D0+CUT)**(1D0-PARP(98)) | |
11506 | 400 CHI(JT)=(CUTA+PYR(0)*(CUTB-CUTA))**(1D0/(1D0-PARP(98))) | |
11507 | IF(((CHI(JT)+CUT)**2/(2D0*(CHI(JT)**2+CUT**2)))** | |
11508 | & (0.5D0*PARP(98))*(1D0-CHI(JT))**CHIK.LT.PYR(0)) GOTO 400 | |
11509 | ENDIF | |
11510 | ||
11511 | C...Relative distribution of energy for particle into jet plus particle. | |
11512 | ELSE | |
11513 | IF(MSTP(94).LE.1) THEN | |
11514 | IF(IMB.EQ.1) CHI(JT)=PYR(0) | |
11515 | IF(IMB.EQ.2) CHI(JT)=1D0-SQRT(PYR(0)) | |
11516 | IF(MOD(KFLCH(JT)/1000,10).NE.0) CHI(JT)=1D0-CHI(JT) | |
11517 | ELSEIF(MSTP(94).EQ.2) THEN | |
11518 | CHI(JT)=1D0-PYR(0)**(1D0/(1D0+PARP(93+2*IMB))) | |
11519 | IF(MOD(KFLCH(JT)/1000,10).NE.0) CHI(JT)=1D0-CHI(JT) | |
11520 | ELSEIF(MSTP(94).EQ.3) THEN | |
11521 | CALL PYZDIS(1,0,PMS(JT+4),ZZ) | |
11522 | CHI(JT)=ZZ | |
11523 | ELSE | |
11524 | CALL PYZDIS(1000,0,PMS(JT+4),ZZ) | |
11525 | CHI(JT)=ZZ | |
11526 | ENDIF | |
11527 | ENDIF | |
11528 | ||
11529 | C...Construct total transverse mass; reject if too large. | |
11530 | PMS(JT)=PMS(JT+4)/CHI(JT)+PMS(JT+2)/(1D0-CHI(JT)) | |
11531 | IF(PMS(JT).GT.PSYS(JT,4)**2) THEN | |
11532 | IF(LOOP.LT.10) THEN | |
11533 | GOTO 370 | |
11534 | ELSE | |
11535 | MINT(51)=1 | |
11536 | MINT(57)=MINT(57)+1 | |
11537 | RETURN | |
11538 | ENDIF | |
11539 | ENDIF | |
11540 | PSYS(JT,3)=SQRT(MAX(0D0,PSYS(JT,4)**2-PMS(JT)))*(-1)**(JT-1) | |
11541 | VINT(158+JT)=CHI(JT) | |
11542 | ||
11543 | C...Subdivide longitudinal momentum according to value selected above. | |
11544 | PW1=CHI(JT)*(PSYS(JT,4)+ABS(PSYS(JT,3))) | |
11545 | P(IS(JT)+1,4)=0.5D0*(PW1+PMS(JT+4)/PW1) | |
11546 | P(IS(JT)+1,3)=0.5D0*(PW1-PMS(JT+4)/PW1)*(-1)**(JT-1) | |
11547 | P(IS(JT),4)=PSYS(JT,4)-P(IS(JT)+1,4) | |
11548 | P(IS(JT),3)=PSYS(JT,3)-P(IS(JT)+1,3) | |
11549 | ENDIF | |
11550 | 410 CONTINUE | |
11551 | N=I | |
11552 | ||
11553 | C...Check if longitudinal boosts needed - if so pick two systems. | |
11554 | PDEV=ABS(PSYS(0,4)+PSYS(1,4)+PSYS(2,4)-VINT(1))+ | |
11555 | &ABS(PSYS(0,3)+PSYS(1,3)+PSYS(2,3)) | |
11556 | IF(PDEV.LE.1D-6*VINT(1)) RETURN | |
11557 | IF(ISN(1).EQ.0) THEN | |
11558 | IR=0 | |
11559 | IL=2 | |
11560 | ELSEIF(ISN(2).EQ.0) THEN | |
11561 | IR=1 | |
11562 | IL=0 | |
11563 | ELSEIF(VINT(143).GT.0.2D0.AND.VINT(144).GT.0.2D0) THEN | |
11564 | IR=1 | |
11565 | IL=2 | |
11566 | ELSEIF(VINT(143).GT.0.2D0) THEN | |
11567 | IR=1 | |
11568 | IL=0 | |
11569 | ELSEIF(VINT(144).GT.0.2D0) THEN | |
11570 | IR=0 | |
11571 | IL=2 | |
11572 | ELSEIF(PMS(1)/PSYS(1,4)**2.GT.PMS(2)/PSYS(2,4)**2) THEN | |
11573 | IR=1 | |
11574 | IL=0 | |
11575 | ELSE | |
11576 | IR=0 | |
11577 | IL=2 | |
11578 | ENDIF | |
11579 | IG=3-IR-IL | |
11580 | ||
11581 | C...E+-pL wanted for system to be modified. | |
11582 | IF((IG.EQ.1.AND.ISN(1).EQ.0).OR.(IG.EQ.2.AND.ISN(2).EQ.0)) THEN | |
11583 | PPB=VINT(1) | |
11584 | PNB=VINT(1) | |
11585 | ELSE | |
11586 | PPB=VINT(1)-(PSYS(IG,4)+PSYS(IG,3)) | |
11587 | PNB=VINT(1)-(PSYS(IG,4)-PSYS(IG,3)) | |
11588 | ENDIF | |
11589 | ||
11590 | C...To keep x and Q2 in leptoproduction: do not count scattered lepton. | |
11591 | IF(IDISXQ.EQ.1.AND.IG.NE.0) THEN | |
11592 | PMTB=PPB*PNB | |
11593 | PMTR=PMS(IR) | |
11594 | PMTL=PMS(IL) | |
11595 | SQLAM=SQRT(MAX(0D0,(PMTB-PMTR-PMTL)**2-4D0*PMTR*PMTL)) | |
11596 | SQSGN=SIGN(1D0,PSYS(IR,3)*PSYS(IL,4)-PSYS(IL,3)*PSYS(IR,4)) | |
11597 | RKR=(PMTB+PMTR-PMTL+SQLAM*SQSGN)/(2D0*(PSYS(IR,4)+PSYS(IR,3)) | |
11598 | & *PNB) | |
11599 | RKL=(PMTB+PMTL-PMTR+SQLAM*SQSGN)/(2D0*(PSYS(IL,4)-PSYS(IL,3)) | |
11600 | & *PPB) | |
11601 | BER=(RKR**2-1D0)/(RKR**2+1D0) | |
11602 | BEL=-(RKL**2-1D0)/(RKL**2+1D0) | |
11603 | PPB=PPB-(PSYS(0,4)+PSYS(0,3)) | |
11604 | PNB=PNB-(PSYS(0,4)-PSYS(0,3)) | |
11605 | DO 420 J=1,4 | |
11606 | PSYS(0,J)=0D0 | |
11607 | 420 CONTINUE | |
11608 | DO 450 I=MINT(84)+1,NS | |
11609 | IF(K(I,1).GT.10) GOTO 450 | |
11610 | INCL=0 | |
11611 | IORIG=I | |
11612 | 430 IF(IORIG.EQ.LQOUT.OR.IORIG.EQ.LPIN+2) INCL=1 | |
11613 | IORIG=K(IORIG,3) | |
11614 | IF(IORIG.GT.LPIN) GOTO 430 | |
11615 | IF(INCL.EQ.0) GOTO 450 | |
11616 | DO 440 J=1,4 | |
11617 | PSYS(0,J)=PSYS(0,J)+P(I,J) | |
11618 | 440 CONTINUE | |
11619 | 450 CONTINUE | |
11620 | PMS(0)=MAX(0D0,PSYS(0,4)**2-PSYS(0,3)**2) | |
11621 | PPB=PPB+(PSYS(0,4)+PSYS(0,3)) | |
11622 | PNB=PNB+(PSYS(0,4)-PSYS(0,3)) | |
11623 | ENDIF | |
11624 | ||
11625 | C...Construct longitudinal boosts. | |
11626 | DPMTB=PPB*PNB | |
11627 | DPMTR=PMS(IR) | |
11628 | DPMTL=PMS(IL) | |
11629 | DSQLAM=SQRT(MAX(0D0,(DPMTB-DPMTR-DPMTL)**2-4D0*DPMTR*DPMTL)) | |
11630 | IF(DSQLAM.LE.1D-6*DPMTB) THEN | |
11631 | MINT(51)=1 | |
11632 | MINT(57)=MINT(57)+1 | |
11633 | RETURN | |
11634 | ENDIF | |
11635 | DSQSGN=SIGN(1D0,PSYS(IR,3)*PSYS(IL,4)-PSYS(IL,3)*PSYS(IR,4)) | |
11636 | DRKR=(DPMTB+DPMTR-DPMTL+DSQLAM*DSQSGN)/ | |
11637 | &(2D0*(PSYS(IR,4)+PSYS(IR,3))*PNB) | |
11638 | DRKL=(DPMTB+DPMTL-DPMTR+DSQLAM*DSQSGN)/ | |
11639 | &(2D0*(PSYS(IL,4)-PSYS(IL,3))*PPB) | |
11640 | DBER=(DRKR**2-1D0)/(DRKR**2+1D0) | |
11641 | DBEL=-(DRKL**2-1D0)/(DRKL**2+1D0) | |
11642 | ||
11643 | C...Perform longitudinal boosts. | |
11644 | IF(IR.EQ.1.AND.ISN(1).EQ.1.AND.DBER.LE.-0.99999999D0) THEN | |
11645 | P(IS(1),3)=0D0 | |
11646 | P(IS(1),4)=SQRT(P(IS(1),5)**2+P(IS(1),1)**2+P(IS(1),2)**2) | |
11647 | ELSEIF(IR.EQ.1) THEN | |
11648 | CALL PYROBO(IS(1),IS(1)+ISN(1)-1,0D0,0D0,0D0,0D0,DBER) | |
11649 | ELSEIF(IDISXQ.EQ.1) THEN | |
11650 | DO 470 I=I1,NS | |
11651 | INCL=0 | |
11652 | IORIG=I | |
11653 | 460 IF(IORIG.EQ.LQOUT.OR.IORIG.EQ.LPIN+2) INCL=1 | |
11654 | IORIG=K(IORIG,3) | |
11655 | IF(IORIG.GT.LPIN) GOTO 460 | |
11656 | IF(INCL.EQ.1) CALL PYROBO(I,I,0D0,0D0,0D0,0D0,DBER) | |
11657 | 470 CONTINUE | |
11658 | ELSE | |
11659 | CALL PYROBO(I1,NS,0D0,0D0,0D0,0D0,DBER) | |
11660 | ENDIF | |
11661 | IF(IL.EQ.2.AND.ISN(2).EQ.1.AND.DBEL.GE.0.99999999D0) THEN | |
11662 | P(IS(2),3)=0D0 | |
11663 | P(IS(2),4)=SQRT(P(IS(2),5)**2+P(IS(2),1)**2+P(IS(2),2)**2) | |
11664 | ELSEIF(IL.EQ.2) THEN | |
11665 | CALL PYROBO(IS(2),IS(2)+ISN(2)-1,0D0,0D0,0D0,0D0,DBEL) | |
11666 | ELSEIF(IDISXQ.EQ.1) THEN | |
11667 | DO 490 I=I1,NS | |
11668 | INCL=0 | |
11669 | IORIG=I | |
11670 | 480 IF(IORIG.EQ.LQOUT.OR.IORIG.EQ.LPIN+2) INCL=1 | |
11671 | IORIG=K(IORIG,3) | |
11672 | IF(IORIG.GT.LPIN) GOTO 480 | |
11673 | IF(INCL.EQ.1) CALL PYROBO(I,I,0D0,0D0,0D0,0D0,DBEL) | |
11674 | 490 CONTINUE | |
11675 | ELSE | |
11676 | CALL PYROBO(I1,NS,0D0,0D0,0D0,0D0,DBEL) | |
11677 | ENDIF | |
11678 | ||
11679 | C...Final check that energy-momentum conservation worked. | |
11680 | PESUM=0D0 | |
11681 | PZSUM=0D0 | |
11682 | DO 500 I=MINT(84)+1,N | |
11683 | IF(K(I,1).GT.10) GOTO 500 | |
11684 | PESUM=PESUM+P(I,4) | |
11685 | PZSUM=PZSUM+P(I,3) | |
11686 | 500 CONTINUE | |
11687 | PDEV=ABS(PESUM-VINT(1))+ABS(PZSUM) | |
11688 | IF(PDEV.GT.1D-4*VINT(1)) THEN | |
11689 | MINT(51)=1 | |
11690 | MINT(57)=MINT(57)+1 | |
11691 | RETURN | |
11692 | ENDIF | |
11693 | ||
11694 | C...Calculate rotation and boost from overall CM frame to | |
11695 | C...hadronic CM frame in leptoproduction. | |
11696 | MINT(91)=0 | |
11697 | IF(MINT(82).EQ.1.AND.(MINT(43).EQ.2.OR.MINT(43).EQ.3)) THEN | |
11698 | MINT(91)=1 | |
11699 | LESD=1 | |
11700 | IF(MINT(42).EQ.1) LESD=2 | |
11701 | LPIN=MINT(83)+3-LESD | |
11702 | ||
11703 | C...Sum upp momenta of everything not lepton or photon to define boost. | |
11704 | DO 510 J=1,4 | |
11705 | PSUM(J)=0D0 | |
11706 | 510 CONTINUE | |
11707 | DO 530 I=1,N | |
11708 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 530 | |
11709 | IF(IABS(K(I,2)).GE.11.AND.IABS(K(I,2)).LE.20) GOTO 530 | |
11710 | IF(K(I,2).EQ.22) GOTO 530 | |
11711 | DO 520 J=1,4 | |
11712 | PSUM(J)=PSUM(J)+P(I,J) | |
11713 | 520 CONTINUE | |
11714 | 530 CONTINUE | |
11715 | VINT(223)=-PSUM(1)/PSUM(4) | |
11716 | VINT(224)=-PSUM(2)/PSUM(4) | |
11717 | VINT(225)=-PSUM(3)/PSUM(4) | |
11718 | ||
11719 | C...Boost incoming hadron to hadronic CM frame to determine rotations. | |
11720 | K(N+1,1)=1 | |
11721 | DO 540 J=1,5 | |
11722 | P(N+1,J)=P(LPIN,J) | |
11723 | V(N+1,J)=V(LPIN,J) | |
11724 | 540 CONTINUE | |
11725 | CALL PYROBO(N+1,N+1,0D0,0D0,VINT(223),VINT(224),VINT(225)) | |
11726 | VINT(222)=-PYANGL(P(N+1,1),P(N+1,2)) | |
11727 | CALL PYROBO(N+1,N+1,0D0,VINT(222),0D0,0D0,0D0) | |
11728 | IF(LESD.EQ.2) THEN | |
11729 | VINT(221)=-PYANGL(P(N+1,3),P(N+1,1)) | |
11730 | ELSE | |
11731 | VINT(221)=PYANGL(-P(N+1,3),P(N+1,1)) | |
11732 | ENDIF | |
11733 | ENDIF | |
11734 | ||
11735 | RETURN | |
11736 | END | |
11737 | ||
11738 | C********************************************************************* | |
11739 | ||
11740 | C...PYDIFF | |
11741 | C...Handles diffractive and elastic scattering. | |
11742 | ||
11743 | SUBROUTINE PYDIFF | |
11744 | ||
11745 | C...Double precision and integer declarations. | |
11746 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
11747 | INTEGER PYK,PYCHGE,PYCOMP | |
11748 | C...Commonblocks. | |
11749 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
11750 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
11751 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
11752 | COMMON/PYINT1/MINT(400),VINT(400) | |
11753 | SAVE /PYJETS/,/PYDAT1/,/PYPARS/,/PYINT1/ | |
11754 | ||
11755 | C...Reset K, P and V vectors. Store incoming particles. | |
11756 | DO 110 JT=1,MSTP(126)+10 | |
11757 | I=MINT(83)+JT | |
11758 | DO 100 J=1,5 | |
11759 | K(I,J)=0 | |
11760 | P(I,J)=0D0 | |
11761 | V(I,J)=0D0 | |
11762 | 100 CONTINUE | |
11763 | 110 CONTINUE | |
11764 | N=MINT(84) | |
11765 | MINT(3)=0 | |
11766 | MINT(21)=0 | |
11767 | MINT(22)=0 | |
11768 | MINT(23)=0 | |
11769 | MINT(24)=0 | |
11770 | MINT(4)=4 | |
11771 | DO 130 JT=1,2 | |
11772 | I=MINT(83)+JT | |
11773 | K(I,1)=21 | |
11774 | K(I,2)=MINT(10+JT) | |
11775 | DO 120 J=1,5 | |
11776 | P(I,J)=VINT(285+5*JT+J) | |
11777 | 120 CONTINUE | |
11778 | 130 CONTINUE | |
11779 | MINT(6)=2 | |
11780 | ||
11781 | C...Subprocess; kinematics. | |
11782 | SQLAM=(VINT(2)-VINT(63)-VINT(64))**2-4D0*VINT(63)*VINT(64) | |
11783 | PZ=SQRT(SQLAM)/(2D0*VINT(1)) | |
11784 | DO 200 JT=1,2 | |
11785 | I=MINT(83)+JT | |
11786 | PE=(VINT(2)+VINT(62+JT)-VINT(65-JT))/(2D0*VINT(1)) | |
11787 | KFH=MINT(102+JT) | |
11788 | ||
11789 | C...Elastically scattered particle. | |
11790 | IF(MINT(16+JT).LE.0) THEN | |
11791 | N=N+1 | |
11792 | K(N,1)=1 | |
11793 | K(N,2)=KFH | |
11794 | K(N,3)=I+2 | |
11795 | P(N,3)=PZ*(-1)**(JT+1) | |
11796 | P(N,4)=PE | |
11797 | P(N,5)=SQRT(VINT(62+JT)) | |
11798 | ||
11799 | C...Decay rho from elastic scattering of gamma with sin**2(theta) | |
11800 | C...distribution of decay products (in rho rest frame). | |
11801 | IF(KFH.EQ.113.AND.MINT(10+JT).EQ.22.AND.MSTP(102).EQ.1) THEN | |
11802 | NSAV=N | |
11803 | DBETAZ=P(N,3)/SQRT(P(N,3)**2+P(N,5)**2) | |
11804 | P(N,3)=0D0 | |
11805 | P(N,4)=P(N,5) | |
11806 | CALL PYDECY(NSAV) | |
11807 | IF(N.EQ.NSAV+2.AND.IABS(K(NSAV+1,2)).EQ.211) THEN | |
11808 | PHI=PYANGL(P(NSAV+1,1),P(NSAV+1,2)) | |
11809 | CALL PYROBO(NSAV+1,NSAV+2,0D0,-PHI,0D0,0D0,0D0) | |
11810 | THE=PYANGL(P(NSAV+1,3),P(NSAV+1,1)) | |
11811 | CALL PYROBO(NSAV+1,NSAV+2,-THE,0D0,0D0,0D0,0D0) | |
11812 | 140 CTHE=2D0*PYR(0)-1D0 | |
11813 | IF(1D0-CTHE**2.LT.PYR(0)) GOTO 140 | |
11814 | CALL PYROBO(NSAV+1,NSAV+2,ACOS(CTHE),PHI,0D0,0D0,0D0) | |
11815 | ENDIF | |
11816 | CALL PYROBO(NSAV,NSAV+2,0D0,0D0,0D0,0D0,DBETAZ) | |
11817 | ENDIF | |
11818 | ||
11819 | C...Diffracted particle: low-mass system to two particles. | |
11820 | ELSEIF(VINT(62+JT).LT.(VINT(66+JT)+PARP(103))**2) THEN | |
11821 | N=N+2 | |
11822 | K(N-1,1)=1 | |
11823 | K(N,1)=1 | |
11824 | K(N-1,3)=I+2 | |
11825 | K(N,3)=I+2 | |
11826 | PMMAS=SQRT(VINT(62+JT)) | |
11827 | NTRY=0 | |
11828 | 150 NTRY=NTRY+1 | |
11829 | IF(NTRY.LT.20) THEN | |
11830 | MINT(105)=MINT(102+JT) | |
11831 | MINT(109)=MINT(106+JT) | |
11832 | CALL PYSPLI(KFH,21,KFL1,KFL2) | |
11833 | CALL PYKFDI(KFL1,0,KFL3,KF1) | |
11834 | IF(KF1.EQ.0) GOTO 150 | |
11835 | CALL PYKFDI(KFL2,-KFL3,KFLDUM,KF2) | |
11836 | IF(KF2.EQ.0) GOTO 150 | |
11837 | ELSE | |
11838 | KF1=KFH | |
11839 | KF2=111 | |
11840 | ENDIF | |
11841 | PM1=PYMASS(KF1) | |
11842 | PM2=PYMASS(KF2) | |
11843 | IF(PM1+PM2+PARJ(64).GT.PMMAS) GOTO 150 | |
11844 | K(N-1,2)=KF1 | |
11845 | K(N,2)=KF2 | |
11846 | P(N-1,5)=PM1 | |
11847 | P(N,5)=PM2 | |
11848 | PZP=SQRT(MAX(0D0,(PMMAS**2-PM1**2-PM2**2)**2- | |
11849 | & 4D0*PM1**2*PM2**2))/(2D0*PMMAS) | |
11850 | P(N-1,3)=PZP | |
11851 | P(N,3)=-PZP | |
11852 | P(N-1,4)=SQRT(PM1**2+PZP**2) | |
11853 | P(N,4)=SQRT(PM2**2+PZP**2) | |
11854 | CALL PYROBO(N-1,N,ACOS(2D0*PYR(0)-1D0),PARU(2)*PYR(0), | |
11855 | & 0D0,0D0,0D0) | |
11856 | DBETAZ=PZ*(-1)**(JT+1)/SQRT(PZ**2+PMMAS**2) | |
11857 | CALL PYROBO(N-1,N,0D0,0D0,0D0,0D0,DBETAZ) | |
11858 | ||
11859 | C...Diffracted particle: valence quark kicked out. | |
11860 | ELSEIF(MSTP(101).EQ.1.OR.(MSTP(101).EQ.3.AND.PYR(0).LT. | |
11861 | & PARP(101))) THEN | |
11862 | N=N+2 | |
11863 | K(N-1,1)=2 | |
11864 | K(N,1)=1 | |
11865 | K(N-1,3)=I+2 | |
11866 | K(N,3)=I+2 | |
11867 | MINT(105)=MINT(102+JT) | |
11868 | MINT(109)=MINT(106+JT) | |
11869 | CALL PYSPLI(KFH,21,K(N,2),K(N-1,2)) | |
11870 | P(N-1,5)=PYMASS(K(N-1,2)) | |
11871 | P(N,5)=PYMASS(K(N,2)) | |
11872 | SQLAM=(VINT(62+JT)-P(N-1,5)**2-P(N,5)**2)**2- | |
11873 | & 4D0*P(N-1,5)**2*P(N,5)**2 | |
11874 | P(N-1,3)=(PE*SQRT(SQLAM)+PZ*(VINT(62+JT)+P(N-1,5)**2- | |
11875 | & P(N,5)**2))/(2D0*VINT(62+JT))*(-1)**(JT+1) | |
11876 | P(N-1,4)=SQRT(P(N-1,3)**2+P(N-1,5)**2) | |
11877 | P(N,3)=PZ*(-1)**(JT+1)-P(N-1,3) | |
11878 | P(N,4)=SQRT(P(N,3)**2+P(N,5)**2) | |
11879 | ||
11880 | C...Diffracted particle: gluon kicked out. | |
11881 | ELSE | |
11882 | N=N+3 | |
11883 | K(N-2,1)=2 | |
11884 | K(N-1,1)=2 | |
11885 | K(N,1)=1 | |
11886 | K(N-2,3)=I+2 | |
11887 | K(N-1,3)=I+2 | |
11888 | K(N,3)=I+2 | |
11889 | MINT(105)=MINT(102+JT) | |
11890 | MINT(109)=MINT(106+JT) | |
11891 | CALL PYSPLI(KFH,21,K(N,2),K(N-2,2)) | |
11892 | K(N-1,2)=21 | |
11893 | P(N-2,5)=PYMASS(K(N-2,2)) | |
11894 | P(N-1,5)=0D0 | |
11895 | P(N,5)=PYMASS(K(N,2)) | |
11896 | C...Energy distribution for particle into two jets. | |
11897 | 160 IMB=1 | |
11898 | IF(MOD(KFH/1000,10).NE.0) IMB=2 | |
11899 | CHIK=PARP(92+2*IMB) | |
11900 | IF(MSTP(92).LE.1) THEN | |
11901 | IF(IMB.EQ.1) CHI=PYR(0) | |
11902 | IF(IMB.EQ.2) CHI=1D0-SQRT(PYR(0)) | |
11903 | ELSEIF(MSTP(92).EQ.2) THEN | |
11904 | CHI=1D0-PYR(0)**(1D0/(1D0+CHIK)) | |
11905 | ELSEIF(MSTP(92).EQ.3) THEN | |
11906 | CUT=2D0*0.3D0/VINT(1) | |
11907 | 170 CHI=PYR(0)**2 | |
11908 | IF((CHI**2/(CHI**2+CUT**2))**0.25D0*(1D0-CHI)**CHIK.LT. | |
11909 | & PYR(0)) GOTO 170 | |
11910 | ELSEIF(MSTP(92).EQ.4) THEN | |
11911 | CUT=2D0*0.3D0/VINT(1) | |
11912 | CUTR=(1D0+SQRT(1D0+CUT**2))/CUT | |
11913 | 180 CHIR=CUT*CUTR**PYR(0) | |
11914 | CHI=(CHIR**2-CUT**2)/(2D0*CHIR) | |
11915 | IF((1D0-CHI)**CHIK.LT.PYR(0)) GOTO 180 | |
11916 | ELSE | |
11917 | CUT=2D0*0.3D0/VINT(1) | |
11918 | CUTA=CUT**(1D0-PARP(98)) | |
11919 | CUTB=(1D0+CUT)**(1D0-PARP(98)) | |
11920 | 190 CHI=(CUTA+PYR(0)*(CUTB-CUTA))**(1D0/(1D0-PARP(98))) | |
11921 | IF(((CHI+CUT)**2/(2D0*(CHI**2+CUT**2)))** | |
11922 | & (0.5D0*PARP(98))*(1D0-CHI)**CHIK.LT.PYR(0)) GOTO 190 | |
11923 | ENDIF | |
11924 | IF(CHI.LT.P(N,5)**2/VINT(62+JT).OR.CHI.GT.1D0-P(N-2,5)**2/ | |
11925 | & VINT(62+JT)) GOTO 160 | |
11926 | SQM=P(N-2,5)**2/(1D0-CHI)+P(N,5)**2/CHI | |
11927 | IF((SQRT(SQM)+PARJ(32))**2.GE.VINT(62+JT)) GOTO 160 | |
11928 | PZI=(PE*(VINT(62+JT)-SQM)+PZ*(VINT(62+JT)+SQM))/ | |
11929 | & (2D0*VINT(62+JT)) | |
11930 | PEI=SQRT(PZI**2+SQM) | |
11931 | PQQP=(1D0-CHI)*(PEI+PZI) | |
11932 | P(N-2,3)=0.5D0*(PQQP-P(N-2,5)**2/PQQP)*(-1)**(JT+1) | |
11933 | P(N-2,4)=SQRT(P(N-2,3)**2+P(N-2,5)**2) | |
11934 | P(N-1,4)=0.5D0*(VINT(62+JT)-SQM)/(PEI+PZI) | |
11935 | P(N-1,3)=P(N-1,4)*(-1)**JT | |
11936 | P(N,3)=PZI*(-1)**(JT+1)-P(N-2,3) | |
11937 | P(N,4)=SQRT(P(N,3)**2+P(N,5)**2) | |
11938 | ENDIF | |
11939 | ||
11940 | C...Documentation lines. | |
11941 | K(I+2,1)=21 | |
11942 | IF(MINT(16+JT).EQ.0) K(I+2,2)=KFH | |
11943 | IF(MINT(16+JT).NE.0) K(I+2,2)=10*(KFH/10) | |
11944 | K(I+2,3)=I | |
11945 | P(I+2,3)=PZ*(-1)**(JT+1) | |
11946 | P(I+2,4)=PE | |
11947 | P(I+2,5)=SQRT(VINT(62+JT)) | |
11948 | 200 CONTINUE | |
11949 | ||
11950 | C...Rotate outgoing partons/particles using cos(theta). | |
11951 | IF(VINT(23).LT.0.9D0) THEN | |
11952 | CALL PYROBO(MINT(83)+3,N,ACOS(VINT(23)),VINT(24),0D0,0D0,0D0) | |
11953 | ELSE | |
11954 | CALL PYROBO(MINT(83)+3,N,ASIN(VINT(59)),VINT(24),0D0,0D0,0D0) | |
11955 | ENDIF | |
11956 | ||
11957 | RETURN | |
11958 | END | |
11959 | ||
11960 | C********************************************************************* | |
11961 | ||
11962 | C...PYDOCU | |
11963 | C...Handles the documentation of the process in MSTI and PARI, | |
11964 | C...and also computes cross-sections based on accumulated statistics. | |
11965 | ||
11966 | SUBROUTINE PYDOCU | |
11967 | ||
11968 | C...Double precision and integer declarations. | |
11969 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
11970 | INTEGER PYK,PYCHGE,PYCOMP | |
11971 | C...Commonblocks. | |
11972 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
11973 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
11974 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
11975 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
11976 | COMMON/PYINT1/MINT(400),VINT(400) | |
11977 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
11978 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
11979 | SAVE /PYJETS/,/PYDAT1/,/PYSUBS/,/PYPARS/,/PYINT1/,/PYINT2/, | |
11980 | &/PYINT5/ | |
11981 | ||
11982 | C...Calculate Monte Carlo estimates of cross-sections. | |
11983 | ISUB=MINT(1) | |
11984 | IF(MSTP(111).NE.-1) NGEN(ISUB,3)=NGEN(ISUB,3)+1 | |
11985 | NGEN(0,3)=NGEN(0,3)+1 | |
11986 | XSEC(0,3)=0D0 | |
11987 | DO 100 I=1,500 | |
11988 | IF(I.EQ.96.OR.I.EQ.97) THEN | |
11989 | XSEC(I,3)=0D0 | |
11990 | ELSEIF(MSUB(95).EQ.1.AND.(I.EQ.11.OR.I.EQ.12.OR.I.EQ.13.OR. | |
11991 | & I.EQ.28.OR.I.EQ.53.OR.I.EQ.68)) THEN | |
11992 | XSEC(I,3)=XSEC(96,2)*NGEN(I,3)/MAX(1D0,DBLE(NGEN(96,1))* | |
11993 | & DBLE(NGEN(96,2))) | |
11994 | ELSEIF(MSUB(I).EQ.0.OR.NGEN(I,1).EQ.0) THEN | |
11995 | XSEC(I,3)=0D0 | |
11996 | ELSEIF(NGEN(I,2).EQ.0) THEN | |
11997 | XSEC(I,3)=XSEC(I,2)*NGEN(0,3)/(DBLE(NGEN(I,1))* | |
11998 | & DBLE(NGEN(0,2))) | |
11999 | ELSE | |
12000 | XSEC(I,3)=XSEC(I,2)*NGEN(I,3)/(DBLE(NGEN(I,1))* | |
12001 | & DBLE(NGEN(I,2))) | |
12002 | ENDIF | |
12003 | XSEC(0,3)=XSEC(0,3)+XSEC(I,3) | |
12004 | 100 CONTINUE | |
12005 | ||
12006 | C...Rescale to known low-pT cross-section for standard QCD processes. | |
12007 | IF(MSUB(95).EQ.1) THEN | |
12008 | XSECH=XSEC(11,3)+XSEC(12,3)+XSEC(13,3)+XSEC(28,3)+XSEC(53,3)+ | |
12009 | & XSEC(68,3)+XSEC(95,3) | |
12010 | XSECW=XSEC(97,2)/MAX(1D0,DBLE(NGEN(97,1))) | |
12011 | IF(XSECH.GT.1D-10.AND.XSECW.GT.1D-10) THEN | |
12012 | FAC=XSECW/XSECH | |
12013 | XSEC(11,3)=FAC*XSEC(11,3) | |
12014 | XSEC(12,3)=FAC*XSEC(12,3) | |
12015 | XSEC(13,3)=FAC*XSEC(13,3) | |
12016 | XSEC(28,3)=FAC*XSEC(28,3) | |
12017 | XSEC(53,3)=FAC*XSEC(53,3) | |
12018 | XSEC(68,3)=FAC*XSEC(68,3) | |
12019 | XSEC(95,3)=FAC*XSEC(95,3) | |
12020 | XSEC(0,3)=XSEC(0,3)-XSECH+XSECW | |
12021 | ENDIF | |
12022 | ENDIF | |
12023 | ||
12024 | C...Save information for gamma-p and gamma-gamma. | |
12025 | IF(MINT(121).GT.1) THEN | |
12026 | IGA=MINT(122) | |
12027 | CALL PYSAVE(2,IGA) | |
12028 | CALL PYSAVE(5,0) | |
12029 | ENDIF | |
12030 | ||
12031 | C...Reset information on hard interaction. | |
12032 | DO 110 J=1,200 | |
12033 | MSTI(J)=0 | |
12034 | PARI(J)=0D0 | |
12035 | 110 CONTINUE | |
12036 | ||
12037 | C...Copy integer valued information from MINT into MSTI. | |
12038 | DO 120 J=1,32 | |
12039 | MSTI(J)=MINT(J) | |
12040 | 120 CONTINUE | |
12041 | IF(MINT(121).GT.1) MSTI(9)=MINT(122) | |
12042 | ||
12043 | C...Store cross-section variables in PARI. | |
12044 | PARI(1)=XSEC(0,3) | |
12045 | PARI(2)=XSEC(0,3)/MINT(5) | |
12046 | PARI(9)=VINT(99) | |
12047 | PARI(10)=VINT(100) | |
12048 | VINT(98)=VINT(98)+VINT(100) | |
12049 | IF(MSTP(142).EQ.1) PARI(2)=XSEC(0,3)/VINT(98) | |
12050 | ||
12051 | C...Store kinematics variables in PARI. | |
12052 | PARI(11)=VINT(1) | |
12053 | PARI(12)=VINT(2) | |
12054 | IF(ISUB.NE.95) THEN | |
12055 | DO 130 J=13,26 | |
12056 | PARI(J)=VINT(30+J) | |
12057 | 130 CONTINUE | |
12058 | PARI(31)=VINT(141) | |
12059 | PARI(32)=VINT(142) | |
12060 | PARI(33)=VINT(41) | |
12061 | PARI(34)=VINT(42) | |
12062 | PARI(35)=PARI(33)-PARI(34) | |
12063 | PARI(36)=VINT(21) | |
12064 | PARI(37)=VINT(22) | |
12065 | PARI(38)=VINT(26) | |
12066 | PARI(39)=VINT(157) | |
12067 | PARI(40)=VINT(158) | |
12068 | PARI(41)=VINT(23) | |
12069 | PARI(42)=2D0*VINT(47)/VINT(1) | |
12070 | ENDIF | |
12071 | ||
12072 | C...Store information on scattered partons in PARI. | |
12073 | IF(ISUB.NE.95.AND.MINT(7)*MINT(8).NE.0) THEN | |
12074 | DO 140 IS=7,8 | |
12075 | I=MINT(IS) | |
12076 | PARI(36+IS)=P(I,3)/VINT(1) | |
12077 | PARI(38+IS)=P(I,4)/VINT(1) | |
12078 | PR=MAX(1D-20,P(I,5)**2+P(I,1)**2+P(I,2)**2) | |
12079 | PARI(40+IS)=SIGN(LOG(MIN((SQRT(PR+P(I,3)**2)+ABS(P(I,3)))/ | |
12080 | & SQRT(PR),1D20)),P(I,3)) | |
12081 | PR=MAX(1D-20,P(I,1)**2+P(I,2)**2) | |
12082 | PARI(42+IS)=SIGN(LOG(MIN((SQRT(PR+P(I,3)**2)+ABS(P(I,3)))/ | |
12083 | & SQRT(PR),1D20)),P(I,3)) | |
12084 | PARI(44+IS)=P(I,3)/SQRT(1D-20+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
12085 | PARI(46+IS)=PYANGL(P(I,3),SQRT(P(I,1)**2+P(I,2)**2)) | |
12086 | PARI(48+IS)=PYANGL(P(I,1),P(I,2)) | |
12087 | 140 CONTINUE | |
12088 | ENDIF | |
12089 | ||
12090 | C...Store sum up transverse and longitudinal momenta. | |
12091 | PARI(65)=2D0*PARI(17) | |
12092 | IF(ISUB.LE.90.OR.ISUB.GE.95) THEN | |
12093 | DO 150 I=MSTP(126)+1,N | |
12094 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 150 | |
12095 | PT=SQRT(P(I,1)**2+P(I,2)**2) | |
12096 | PARI(69)=PARI(69)+PT | |
12097 | IF(I.LE.MINT(52)) PARI(66)=PARI(66)+PT | |
12098 | IF(I.GT.MINT(52).AND.I.LE.MINT(53)) PARI(68)=PARI(68)+PT | |
12099 | 150 CONTINUE | |
12100 | PARI(67)=PARI(68) | |
12101 | PARI(71)=VINT(151) | |
12102 | PARI(72)=VINT(152) | |
12103 | PARI(73)=VINT(151) | |
12104 | PARI(74)=VINT(152) | |
12105 | ELSE | |
12106 | PARI(66)=PARI(65) | |
12107 | PARI(69)=PARI(65) | |
12108 | ENDIF | |
12109 | ||
12110 | C...Store various other pieces of information into PARI. | |
12111 | PARI(61)=VINT(148) | |
12112 | PARI(75)=VINT(155) | |
12113 | PARI(76)=VINT(156) | |
12114 | PARI(77)=VINT(159) | |
12115 | PARI(78)=VINT(160) | |
12116 | PARI(81)=VINT(138) | |
12117 | ||
12118 | C...Set information for PYTABU. | |
12119 | IF(ISET(ISUB).EQ.1.OR.ISET(ISUB).EQ.3) THEN | |
12120 | MSTU(161)=MINT(21) | |
12121 | MSTU(162)=0 | |
12122 | ELSEIF(ISET(ISUB).EQ.5) THEN | |
12123 | MSTU(161)=MINT(23) | |
12124 | MSTU(162)=0 | |
12125 | ELSE | |
12126 | MSTU(161)=MINT(21) | |
12127 | MSTU(162)=MINT(22) | |
12128 | ENDIF | |
12129 | ||
12130 | RETURN | |
12131 | END | |
12132 | ||
12133 | C********************************************************************* | |
12134 | ||
12135 | C...PYFRAM | |
12136 | C...Performs transformations between different coordinate frames. | |
12137 | ||
12138 | SUBROUTINE PYFRAM(IFRAME) | |
12139 | ||
12140 | C...Double precision and integer declarations. | |
12141 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
12142 | INTEGER PYK,PYCHGE,PYCOMP | |
12143 | C...Commonblocks. | |
12144 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
12145 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
12146 | COMMON/PYINT1/MINT(400),VINT(400) | |
12147 | SAVE /PYDAT1/,/PYPARS/,/PYINT1/ | |
12148 | ||
12149 | C...Check that transformation can and should be done. | |
12150 | IF(IFRAME.EQ.1.OR.IFRAME.EQ.2.OR.(IFRAME.EQ.3.AND. | |
12151 | &MINT(91).EQ.1)) THEN | |
12152 | IF(IFRAME.EQ.MINT(6)) RETURN | |
12153 | ELSE | |
12154 | WRITE(MSTU(11),5000) IFRAME,MINT(6) | |
12155 | RETURN | |
12156 | ENDIF | |
12157 | ||
12158 | IF(MINT(6).EQ.1) THEN | |
12159 | C...Transform from fixed target or user specified frame to | |
12160 | C...overall CM frame. | |
12161 | CALL PYROBO(0,0,0D0,0D0,-VINT(8),-VINT(9),-VINT(10)) | |
12162 | CALL PYROBO(0,0,0D0,-VINT(7),0D0,0D0,0D0) | |
12163 | CALL PYROBO(0,0,-VINT(6),0D0,0D0,0D0,0D0) | |
12164 | ELSEIF(MINT(6).EQ.3) THEN | |
12165 | C...Transform from hadronic CM frame in DIS to overall CM frame. | |
12166 | CALL PYROBO(0,0,-VINT(221),-VINT(222),-VINT(223),-VINT(224), | |
12167 | & -VINT(225)) | |
12168 | ENDIF | |
12169 | ||
12170 | IF(IFRAME.EQ.1) THEN | |
12171 | C...Transform from overall CM frame to fixed target or user specified | |
12172 | C...frame. | |
12173 | CALL PYROBO(0,0,VINT(6),VINT(7),VINT(8),VINT(9),VINT(10)) | |
12174 | ELSEIF(IFRAME.EQ.3) THEN | |
12175 | C...Transform from overall CM frame to hadronic CM frame in DIS. | |
12176 | CALL PYROBO(0,0,0D0,0D0,VINT(223),VINT(224),VINT(225)) | |
12177 | CALL PYROBO(0,0,0D0,VINT(222),0D0,0D0,0D0) | |
12178 | CALL PYROBO(0,0,VINT(221),0D0,0D0,0D0,0D0) | |
12179 | ENDIF | |
12180 | ||
12181 | C...Set information about new frame. | |
12182 | MINT(6)=IFRAME | |
12183 | MSTI(6)=IFRAME | |
12184 | ||
12185 | 5000 FORMAT(1X,'Error: illegal values in subroutine PYFRAM.',1X, | |
12186 | &'No transformation performed.'/1X,'IFRAME =',1X,I5,'; MINT(6) =', | |
12187 | &1X,I5) | |
12188 | ||
12189 | RETURN | |
12190 | END | |
12191 | ||
12192 | C********************************************************************* | |
12193 | ||
12194 | C...PYWIDT | |
12195 | C...Calculates full and partial widths of resonances. | |
12196 | ||
12197 | SUBROUTINE PYWIDT(KFLR,SH,WDTP,WDTE) | |
12198 | ||
12199 | C...Double precision and integer declarations. | |
12200 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
12201 | INTEGER PYK,PYCHGE,PYCOMP | |
12202 | C...Parameter statement to help give large particle numbers. | |
12203 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
12204 | C...Commonblocks. | |
12205 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
12206 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
12207 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
12208 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
12209 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
12210 | COMMON/PYINT1/MINT(400),VINT(400) | |
12211 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
12212 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
12213 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
12214 | &SFMIX(16,4) | |
12215 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
12216 | &/PYINT4/,/PYMSSM/,/PYSSMT/ | |
12217 | C...Local arrays and saved variables. | |
12218 | DIMENSION WDTP(0:200),WDTE(0:200,0:5),MOFSV(3,2),WIDWSV(3,2), | |
12219 | &WID2SV(3,2) | |
12220 | SAVE MOFSV,WIDWSV,WID2SV | |
12221 | DATA MOFSV/6*0/,WIDWSV/6*0D0/,WID2SV/6*0D0/ | |
12222 | ||
12223 | C...Compressed code and sign; mass. | |
12224 | KFLA=IABS(KFLR) | |
12225 | KFLS=ISIGN(1,KFLR) | |
12226 | KC=PYCOMP(KFLA) | |
12227 | SHR=SQRT(SH) | |
12228 | PMR=PMAS(KC,1) | |
12229 | ||
12230 | C...Reset width information. | |
12231 | DO 110 I=0,200 | |
12232 | WDTP(I)=0D0 | |
12233 | DO 100 J=0,5 | |
12234 | WDTE(I,J)=0D0 | |
12235 | 100 CONTINUE | |
12236 | 110 CONTINUE | |
12237 | ||
12238 | C...Not to be treated as a resonance: return. | |
12239 | IF((MWID(KC).LE.0.OR.MWID(KC).GE.4).AND.KFLA.NE.21.AND. | |
12240 | &KFLA.NE.22) THEN | |
12241 | WDTP(0)=1D0 | |
12242 | WDTE(0,0)=1D0 | |
12243 | MINT(61)=0 | |
12244 | MINT(62)=0 | |
12245 | MINT(63)=0 | |
12246 | RETURN | |
12247 | ||
12248 | C...Treatment as a resonance based on tabulated branching ratios. | |
12249 | ELSEIF(MWID(KC).EQ.2.OR.(MWID(KC).EQ.3.AND.MINT(63).EQ.0)) THEN | |
12250 | C...Loop over possible decay channels; skip irrelevant ones. | |
12251 | DO 120 I=1,MDCY(KC,3) | |
12252 | IDC=I+MDCY(KC,2)-1 | |
12253 | IF(MDME(IDC,1).LT.0) GOTO 120 | |
12254 | ||
12255 | C...Read out decay products and nominal masses. | |
12256 | KFD1=KFDP(IDC,1) | |
12257 | KFC1=PYCOMP(KFD1) | |
12258 | IF(KCHG(KFC1,3).EQ.1) KFD1=KFLS*KFD1 | |
12259 | PM1=PMAS(KFC1,1) | |
12260 | KFD2=KFDP(IDC,2) | |
12261 | KFC2=PYCOMP(KFD2) | |
12262 | IF(KCHG(KFC2,3).EQ.1) KFD2=KFLS*KFD2 | |
12263 | PM2=PMAS(KFC2,1) | |
12264 | KFD3=KFDP(IDC,3) | |
12265 | PM3=0D0 | |
12266 | IF(KFD3.NE.0) THEN | |
12267 | KFC3=PYCOMP(KFD3) | |
12268 | IF(KCHG(KFC3,3).EQ.1) KFD3=KFLS*KFD3 | |
12269 | PM3=PMAS(KFC3,1) | |
12270 | ENDIF | |
12271 | ||
12272 | C...Naive partial width and alternative threshold factors. | |
12273 | WDTP(I)=PMAS(KC,2)*BRAT(IDC)*(SHR/PMR) | |
12274 | IF(MDME(IDC,2).GE.51.AND.MDME(IDC,2).LE.53.AND. | |
12275 | & PM1+PM2+PM3.GE.SHR) THEN | |
12276 | WDTP(I)=0D0 | |
12277 | ELSEIF(MDME(IDC,2).EQ.52.AND.KFD3.EQ.0) THEN | |
12278 | WDTP(I)=WDTP(I)*SQRT(MAX(0D0,(SH-PM1**2-PM2**2)**2- | |
12279 | & 4D0*PM1**2*PM2**2))/SH | |
12280 | ELSEIF(MDME(IDC,2).EQ.52) THEN | |
12281 | PMA=MAX(PM1,PM2,PM3) | |
12282 | PMC=MIN(PM1,PM2,PM3) | |
12283 | PMB=PM1+PM2+PM3-PMA-PMC | |
12284 | PMBC=PMB+PMC+0.5D0*(SHR-PMA-PMC-PMC) | |
12285 | PMAN=PMA**2/SH | |
12286 | PMBN=PMB**2/SH | |
12287 | PMCN=PMC**2/SH | |
12288 | PMBCN=PMBC**2/SH | |
12289 | WDTP(I)=WDTP(I)*SQRT(MAX(0D0, | |
12290 | & ((1D0-PMAN-PMBCN)**2-4D0*PMAN*PMBCN)* | |
12291 | & ((PMBCN-PMBN-PMCN)**2-4D0*PMBN*PMCN)))* | |
12292 | & ((SHR-PMA)**2-(PMB+PMC)**2)* | |
12293 | & (1D0+0.25D0*(PMA+PMB+PMC)/SHR)/ | |
12294 | & ((1D0-PMBCN)*PMBCN*SH) | |
12295 | ELSEIF(MDME(IDC,2).EQ.53.AND.KFD3.EQ.0) THEN | |
12296 | WDTP(I)=WDTP(I)*SQRT( | |
12297 | & MAX(0D0,(SH-PM1**2-PM2**2)**2-4D0*PM1**2*PM2**2)/ | |
12298 | & MAX(1D-4,(PMR**2-PM1**2-PM2**2)**2-4D0*PM1**2*PM2**2)) | |
12299 | ELSEIF(MDME(IDC,2).EQ.53) THEN | |
12300 | PMA=MAX(PM1,PM2,PM3) | |
12301 | PMC=MIN(PM1,PM2,PM3) | |
12302 | PMB=PM1+PM2+PM3-PMA-PMC | |
12303 | PMBC=PMB+PMC+0.5D0*(SHR-PMA-PMB-PMC) | |
12304 | PMAN=PMA**2/SH | |
12305 | PMBN=PMB**2/SH | |
12306 | PMCN=PMC**2/SH | |
12307 | PMBCN=PMBC**2/SH | |
12308 | FACACT=SQRT(MAX(0D0, | |
12309 | & ((1D0-PMAN-PMBCN)**2-4D0*PMAN*PMBCN)* | |
12310 | & ((PMBCN-PMBN-PMCN)**2-4D0*PMBN*PMCN)))* | |
12311 | & ((SHR-PMA)**2-(PMB+PMC)**2)* | |
12312 | & (1D0+0.25D0*(PMA+PMB+PMC)/SHR)/ | |
12313 | & ((1D0-PMBCN)*PMBCN*SH) | |
12314 | PMBC=PMB+PMC+0.5D0*(PMR-PMA-PMB-PMC) | |
12315 | PMAN=PMA**2/PMR**2 | |
12316 | PMBN=PMB**2/PMR**2 | |
12317 | PMCN=PMC**2/PMR**2 | |
12318 | PMBCN=PMBC**2/PMR**2 | |
12319 | FACNOM=SQRT(MAX(0D0, | |
12320 | & ((1D0-PMAN-PMBCN)**2-4D0*PMAN*PMBCN)* | |
12321 | & ((PMBCN-PMBN-PMCN)**2-4D0*PMBN*PMCN)))* | |
12322 | & ((PMR-PMA)**2-(PMB+PMC)**2)* | |
12323 | & (1D0+0.25D0*(PMA+PMB+PMC)/PMR)/ | |
12324 | & ((1D0-PMBCN)*PMBCN*PMR**2) | |
12325 | WDTP(I)=WDTP(I)*FACACT/MAX(1D-6,FACNOM) | |
12326 | ENDIF | |
12327 | WDTP(0)=WDTP(0)+WDTP(I) | |
12328 | ||
12329 | C...Calculate secondary width (at most two identical/opposite). | |
12330 | IF(MDME(IDC,1).GT.0) THEN | |
12331 | IF(KFD2.EQ.KFD1) THEN | |
12332 | IF(KCHG(KFC1,3).EQ.0) THEN | |
12333 | WID2=WIDS(KFC1,1) | |
12334 | ELSEIF(KFD1.GT.0) THEN | |
12335 | WID2=WIDS(KFC1,4) | |
12336 | ELSE | |
12337 | WID2=WIDS(KFC1,5) | |
12338 | ENDIF | |
12339 | IF(KFD3.GT.0) THEN | |
12340 | WID2=WID2*WIDS(KFC3,2) | |
12341 | ELSEIF(KFD3.LT.0) THEN | |
12342 | WID2=WID2*WIDS(KFC3,3) | |
12343 | ENDIF | |
12344 | ELSEIF(KFD2.EQ.-KFD1) THEN | |
12345 | WID2=WIDS(KFC1,1) | |
12346 | IF(KFD3.GT.0) THEN | |
12347 | WID2=WID2*WIDS(KFC3,2) | |
12348 | ELSEIF(KFD3.LT.0) THEN | |
12349 | WID2=WID2*WIDS(KFC3,3) | |
12350 | ENDIF | |
12351 | ELSEIF(KFD3.EQ.KFD1) THEN | |
12352 | IF(KCHG(KFC1,3).EQ.0) THEN | |
12353 | WID2=WIDS(KFC1,1) | |
12354 | ELSEIF(KFD1.GT.0) THEN | |
12355 | WID2=WIDS(KFC1,4) | |
12356 | ELSE | |
12357 | WID2=WIDS(KFC1,5) | |
12358 | ENDIF | |
12359 | IF(KFD2.GT.0) THEN | |
12360 | WID2=WID2*WIDS(KFC2,2) | |
12361 | ELSEIF(KFD2.LT.0) THEN | |
12362 | WID2=WID2*WIDS(KFC2,3) | |
12363 | ENDIF | |
12364 | ELSEIF(KFD3.EQ.-KFD1) THEN | |
12365 | WID2=WIDS(KFC1,1) | |
12366 | IF(KFD2.GT.0) THEN | |
12367 | WID2=WID2*WIDS(KFC2,2) | |
12368 | ELSEIF(KFD2.LT.0) THEN | |
12369 | WID2=WID2*WIDS(KFC2,3) | |
12370 | ENDIF | |
12371 | ELSEIF(KFD3.EQ.KFD2) THEN | |
12372 | IF(KCHG(KFC2,3).EQ.0) THEN | |
12373 | WID2=WIDS(KFC2,1) | |
12374 | ELSEIF(KFD2.GT.0) THEN | |
12375 | WID2=WIDS(KFC2,4) | |
12376 | ELSE | |
12377 | WID2=WIDS(KFC2,5) | |
12378 | ENDIF | |
12379 | IF(KFD1.GT.0) THEN | |
12380 | WID2=WID2*WIDS(KFC1,2) | |
12381 | ELSEIF(KFD1.LT.0) THEN | |
12382 | WID2=WID2*WIDS(KFC1,3) | |
12383 | ENDIF | |
12384 | ELSEIF(KFD3.EQ.-KFD2) THEN | |
12385 | WID2=WIDS(KFC2,1) | |
12386 | IF(KFD1.GT.0) THEN | |
12387 | WID2=WID2*WIDS(KFC1,2) | |
12388 | ELSEIF(KFD1.LT.0) THEN | |
12389 | WID2=WID2*WIDS(KFC1,3) | |
12390 | ENDIF | |
12391 | ELSE | |
12392 | IF(KFD1.GT.0) THEN | |
12393 | WID2=WIDS(KFC1,2) | |
12394 | ELSE | |
12395 | WID2=WIDS(KFC1,3) | |
12396 | ENDIF | |
12397 | IF(KFD2.GT.0) THEN | |
12398 | WID2=WID2*WIDS(KFC2,2) | |
12399 | ELSE | |
12400 | WID2=WID2*WIDS(KFC2,3) | |
12401 | ENDIF | |
12402 | IF(KFD3.GT.0) THEN | |
12403 | WID2=WID2*WIDS(KFC3,2) | |
12404 | ELSEIF(KFD3.LT.0) THEN | |
12405 | WID2=WID2*WIDS(KFC3,3) | |
12406 | ENDIF | |
12407 | ENDIF | |
12408 | ||
12409 | C...Store effective widths according to case. | |
12410 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12411 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12412 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12413 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12414 | ENDIF | |
12415 | 120 CONTINUE | |
12416 | C...Return. | |
12417 | MINT(61)=0 | |
12418 | MINT(62)=0 | |
12419 | MINT(63)=0 | |
12420 | RETURN | |
12421 | ENDIF | |
12422 | ||
12423 | C...Here begins detailed dynamical calculation of resonance widths. | |
12424 | C...Shared treatment of Higgs states. | |
12425 | KFHIGG=25 | |
12426 | IHIGG=1 | |
12427 | IF(KFLA.EQ.35.OR.KFLA.EQ.36) THEN | |
12428 | KFHIGG=KFLA | |
12429 | IHIGG=KFLA-33 | |
12430 | ENDIF | |
12431 | ||
12432 | C...Common electroweak and strong constants. | |
12433 | XW=PARU(102) | |
12434 | XWV=XW | |
12435 | IF(MSTP(8).GE.2) XW=1D0-(PMAS(24,1)/PMAS(23,1))**2 | |
12436 | XW1=1D0-XW | |
12437 | AEM=PYALEM(SH) | |
12438 | IF(MSTP(8).GE.1) AEM=SQRT(2D0)*PARU(105)*PMAS(24,1)**2*XW/PARU(1) | |
12439 | AS=PYALPS(SH) | |
12440 | RADC=1D0+AS/PARU(1) | |
12441 | ||
12442 | IF(KFLA.EQ.6) THEN | |
12443 | C...t quark. | |
12444 | FAC=(AEM/(16D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
12445 | RADCT=1D0-2.5D0*AS/PARU(1) | |
12446 | DO 130 I=1,MDCY(KC,3) | |
12447 | IDC=I+MDCY(KC,2)-1 | |
12448 | IF(MDME(IDC,1).LT.0) GOTO 130 | |
12449 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
12450 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
12451 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 130 | |
12452 | IF(I.GE.4.AND.I.LE.7) THEN | |
12453 | C...t -> W + q; including approximate QCD correction factor. | |
12454 | WDTP(I)=FAC*VCKM(3,I-3)*RADCT* | |
12455 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12456 | & ((1D0-RM2)**2+(1D0+RM2)*RM1-2D0*RM1**2) | |
12457 | IF(KFLR.GT.0) THEN | |
12458 | WID2=WIDS(24,2) | |
12459 | IF(I.EQ.7) WID2=WID2*WIDS(7,2) | |
12460 | ELSE | |
12461 | WID2=WIDS(24,3) | |
12462 | IF(I.EQ.7) WID2=WID2*WIDS(7,3) | |
12463 | ENDIF | |
12464 | ELSEIF(I.EQ.9) THEN | |
12465 | C...t -> H + b. | |
12466 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12467 | & ((1D0+RM2-RM1)*(RM2*PARU(141)**2+1D0/PARU(141)**2)+4D0*RM2) | |
12468 | WID2=WIDS(37,2) | |
12469 | IF(KFLR.LT.0) WID2=WIDS(37,3) | |
12470 | CMRENNA++ | |
12471 | ELSEIF(I.GE.10.AND.I.LE.13.AND.IMSS(1).NE.0) THEN | |
12472 | C...t -> ~t + ~chi_i0, i = 1, 2, 3 or 4. | |
12473 | BETA=ATAN(RMSS(5)) | |
12474 | SINB=SIN(BETA) | |
12475 | TANW=SQRT(PARU(102)/(1D0-PARU(102))) | |
12476 | ET=KCHG(6,1)/3D0 | |
12477 | T3L=SIGN(0.5D0,ET) | |
12478 | KFC1=PYCOMP(KFDP(IDC,1)) | |
12479 | KFC2=PYCOMP(KFDP(IDC,2)) | |
12480 | PMNCHI=PMAS(KFC1,1) | |
12481 | PMSTOP=PMAS(KFC2,1) | |
12482 | IF(SHR.GT.PMNCHI+PMSTOP) THEN | |
12483 | IZ=I-9 | |
12484 | AL=SHR*ZMIX(IZ,4)/(2.0D0*PMAS(24,1)*SINB) | |
12485 | AR=-ET*ZMIX(IZ,1)*TANW | |
12486 | BL=T3L*(ZMIX(IZ,2)-ZMIX(IZ,1)*TANW)-AR | |
12487 | BR=AL | |
12488 | FL=SFMIX(6,1)*AL+SFMIX(6,2)*AR | |
12489 | FR=SFMIX(6,1)*BL+SFMIX(6,2)*BR | |
12490 | PCM=SQRT((SH-(PMNCHI+PMSTOP)**2)* | |
12491 | & (SH-(PMNCHI-PMSTOP)**2))/(2D0*SHR) | |
12492 | WDTP(I)=(0.5D0*PYALEM(SH)/PARU(102))*PCM*((FL**2+FR**2)* | |
12493 | & (SH+PMNCHI**2-PMSTOP**2)+SMZ(IZ)*4D0*SHR*FL*FR)/SH | |
12494 | IF(KFLR.GT.0) THEN | |
12495 | WID2=WIDS(KFC1,2)*WIDS(KFC2,2) | |
12496 | ELSE | |
12497 | WID2=WIDS(KFC1,2)*WIDS(KFC2,3) | |
12498 | ENDIF | |
12499 | ENDIF | |
12500 | CMRENNA-- | |
12501 | ENDIF | |
12502 | WDTP(0)=WDTP(0)+WDTP(I) | |
12503 | IF(MDME(IDC,1).GT.0) THEN | |
12504 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12505 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12506 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12507 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12508 | ENDIF | |
12509 | 130 CONTINUE | |
12510 | ||
12511 | ELSEIF(KFLA.EQ.7) THEN | |
12512 | C...b' quark. | |
12513 | FAC=(AEM/(16D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
12514 | DO 140 I=1,MDCY(KC,3) | |
12515 | IDC=I+MDCY(KC,2)-1 | |
12516 | IF(MDME(IDC,1).LT.0) GOTO 140 | |
12517 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
12518 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
12519 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 140 | |
12520 | IF(I.GE.4.AND.I.LE.7) THEN | |
12521 | C...b' -> W + q. | |
12522 | WDTP(I)=FAC*VCKM(I-3,4)* | |
12523 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12524 | & ((1D0-RM2)**2+(1D0+RM2)*RM1-2D0*RM1**2) | |
12525 | IF(KFLR.GT.0) THEN | |
12526 | WID2=WIDS(24,3) | |
12527 | IF(I.EQ.6) WID2=WID2*WIDS(6,2) | |
12528 | IF(I.EQ.7) WID2=WID2*WIDS(8,2) | |
12529 | ELSE | |
12530 | WID2=WIDS(24,2) | |
12531 | IF(I.EQ.6) WID2=WID2*WIDS(6,3) | |
12532 | IF(I.EQ.7) WID2=WID2*WIDS(8,3) | |
12533 | ENDIF | |
12534 | WID2=WIDS(24,3) | |
12535 | IF(KFLR.LT.0) WID2=WIDS(24,2) | |
12536 | ELSEIF(I.EQ.9.OR.I.EQ.10) THEN | |
12537 | C...b' -> H + q. | |
12538 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12539 | & ((1D0+RM2-RM1)*(PARU(141)**2+RM2/PARU(141)**2)+4D0*RM2) | |
12540 | IF(KFLR.GT.0) THEN | |
12541 | WID2=WIDS(37,3) | |
12542 | IF(I.EQ.10) WID2=WID2*WIDS(6,2) | |
12543 | ELSE | |
12544 | WID2=WIDS(37,2) | |
12545 | IF(I.EQ.10) WID2=WID2*WIDS(6,3) | |
12546 | ENDIF | |
12547 | ENDIF | |
12548 | WDTP(0)=WDTP(0)+WDTP(I) | |
12549 | IF(MDME(IDC,1).GT.0) THEN | |
12550 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12551 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12552 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12553 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12554 | ENDIF | |
12555 | 140 CONTINUE | |
12556 | ||
12557 | ELSEIF(KFLA.EQ.8) THEN | |
12558 | C...t' quark. | |
12559 | FAC=(AEM/(16D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
12560 | DO 150 I=1,MDCY(KC,3) | |
12561 | IDC=I+MDCY(KC,2)-1 | |
12562 | IF(MDME(IDC,1).LT.0) GOTO 150 | |
12563 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
12564 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
12565 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 150 | |
12566 | IF(I.GE.4.AND.I.LE.7) THEN | |
12567 | C...t' -> W + q. | |
12568 | WDTP(I)=FAC*VCKM(4,I-3)* | |
12569 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12570 | & ((1D0-RM2)**2+(1D0+RM2)*RM1-2D0*RM1**2) | |
12571 | IF(KFLR.GT.0) THEN | |
12572 | WID2=WIDS(24,2) | |
12573 | IF(I.EQ.7) WID2=WID2*WIDS(7,2) | |
12574 | ELSE | |
12575 | WID2=WIDS(24,3) | |
12576 | IF(I.EQ.7) WID2=WID2*WIDS(7,3) | |
12577 | ENDIF | |
12578 | ELSEIF(I.EQ.9.OR.I.EQ.10) THEN | |
12579 | C...t' -> H + q. | |
12580 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12581 | & ((1D0+RM2-RM1)*(RM2*PARU(141)**2+1D0/PARU(141)**2)+4D0*RM2) | |
12582 | IF(KFLR.GT.0) THEN | |
12583 | WID2=WIDS(37,2) | |
12584 | IF(I.EQ.10) WID2=WID2*WIDS(7,2) | |
12585 | ELSE | |
12586 | WID2=WIDS(37,3) | |
12587 | IF(I.EQ.10) WID2=WID2*WIDS(7,3) | |
12588 | ENDIF | |
12589 | ENDIF | |
12590 | WDTP(0)=WDTP(0)+WDTP(I) | |
12591 | IF(MDME(IDC,1).GT.0) THEN | |
12592 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12593 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12594 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12595 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12596 | ENDIF | |
12597 | 150 CONTINUE | |
12598 | ||
12599 | ELSEIF(KFLA.EQ.17) THEN | |
12600 | C...tau' lepton. | |
12601 | FAC=(AEM/(16D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
12602 | DO 160 I=1,MDCY(KC,3) | |
12603 | IDC=I+MDCY(KC,2)-1 | |
12604 | IF(MDME(IDC,1).LT.0) GOTO 160 | |
12605 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
12606 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
12607 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 160 | |
12608 | IF(I.EQ.3) THEN | |
12609 | C...tau' -> W + nu'_tau. | |
12610 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12611 | & ((1D0-RM2)**2+(1D0+RM2)*RM1-2D0*RM1**2) | |
12612 | IF(KFLR.GT.0) THEN | |
12613 | WID2=WIDS(24,3) | |
12614 | WID2=WID2*WIDS(18,2) | |
12615 | ELSE | |
12616 | WID2=WIDS(24,2) | |
12617 | WID2=WID2*WIDS(18,3) | |
12618 | ENDIF | |
12619 | ELSEIF(I.EQ.5) THEN | |
12620 | C...tau' -> H + nu'_tau. | |
12621 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12622 | & ((1D0+RM2-RM1)*(PARU(141)**2+RM2/PARU(141)**2)+4D0*RM2) | |
12623 | IF(KFLR.GT.0) THEN | |
12624 | WID2=WIDS(37,3) | |
12625 | WID2=WID2*WIDS(18,2) | |
12626 | ELSE | |
12627 | WID2=WIDS(37,2) | |
12628 | WID2=WID2*WIDS(18,3) | |
12629 | ENDIF | |
12630 | ENDIF | |
12631 | WDTP(0)=WDTP(0)+WDTP(I) | |
12632 | IF(MDME(IDC,1).GT.0) THEN | |
12633 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12634 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12635 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12636 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12637 | ENDIF | |
12638 | 160 CONTINUE | |
12639 | ||
12640 | ELSEIF(KFLA.EQ.18) THEN | |
12641 | C...nu'_tau neutrino. | |
12642 | FAC=(AEM/(16D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
12643 | DO 170 I=1,MDCY(KC,3) | |
12644 | IDC=I+MDCY(KC,2)-1 | |
12645 | IF(MDME(IDC,1).LT.0) GOTO 170 | |
12646 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
12647 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
12648 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 170 | |
12649 | IF(I.EQ.2) THEN | |
12650 | C...nu'_tau -> W + tau'. | |
12651 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12652 | & ((1D0-RM2)**2+(1D0+RM2)*RM1-2D0*RM1**2) | |
12653 | IF(KFLR.GT.0) THEN | |
12654 | WID2=WIDS(24,2) | |
12655 | WID2=WID2*WIDS(17,2) | |
12656 | ELSE | |
12657 | WID2=WIDS(24,3) | |
12658 | WID2=WID2*WIDS(17,3) | |
12659 | ENDIF | |
12660 | ELSEIF(I.EQ.3) THEN | |
12661 | C...nu'_tau -> H + tau'. | |
12662 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))* | |
12663 | & ((1D0+RM2-RM1)*(RM2*PARU(141)**2+1D0/PARU(141)**2)+4D0*RM2) | |
12664 | IF(KFLR.GT.0) THEN | |
12665 | WID2=WIDS(37,2) | |
12666 | WID2=WID2*WIDS(17,2) | |
12667 | ELSE | |
12668 | WID2=WIDS(37,3) | |
12669 | WID2=WID2*WIDS(17,3) | |
12670 | ENDIF | |
12671 | ENDIF | |
12672 | WDTP(0)=WDTP(0)+WDTP(I) | |
12673 | IF(MDME(IDC,1).GT.0) THEN | |
12674 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12675 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12676 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12677 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12678 | ENDIF | |
12679 | 170 CONTINUE | |
12680 | ||
12681 | ELSEIF(KFLA.EQ.21) THEN | |
12682 | C...QCD: | |
12683 | C***Note that widths are not given in dimensional quantities here. | |
12684 | DO 180 I=1,MDCY(KC,3) | |
12685 | IDC=I+MDCY(KC,2)-1 | |
12686 | IF(MDME(IDC,1).LT.0) GOTO 180 | |
12687 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SH | |
12688 | RM2=PMAS(IABS(KFDP(IDC,2)),1)**2/SH | |
12689 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 180 | |
12690 | WID2=1D0 | |
12691 | IF(I.LE.8) THEN | |
12692 | C...QCD -> q + qbar | |
12693 | WDTP(I)=(1D0+2D0*RM1)*SQRT(MAX(0D0,1D0-4D0*RM1)) | |
12694 | IF(I.EQ.6) WID2=WIDS(6,1) | |
12695 | IF((I.EQ.7.OR.I.EQ.8)) WID2=WIDS(I,1) | |
12696 | ENDIF | |
12697 | WDTP(0)=WDTP(0)+WDTP(I) | |
12698 | IF(MDME(IDC,1).GT.0) THEN | |
12699 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12700 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12701 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12702 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12703 | ENDIF | |
12704 | 180 CONTINUE | |
12705 | ||
12706 | ELSEIF(KFLA.EQ.22) THEN | |
12707 | C...QED photon. | |
12708 | C***Note that widths are not given in dimensional quantities here. | |
12709 | DO 190 I=1,MDCY(KC,3) | |
12710 | IDC=I+MDCY(KC,2)-1 | |
12711 | IF(MDME(IDC,1).LT.0) GOTO 190 | |
12712 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SH | |
12713 | RM2=PMAS(IABS(KFDP(IDC,2)),1)**2/SH | |
12714 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 190 | |
12715 | WID2=1D0 | |
12716 | IF(I.LE.8) THEN | |
12717 | C...QED -> q + qbar. | |
12718 | EF=KCHG(I,1)/3D0 | |
12719 | FCOF=3D0*RADC | |
12720 | IF(I.GE.6.AND.MSTP(35).GE.1) FCOF=FCOF*PYHFTH(SH,SH*RM1,1D0) | |
12721 | WDTP(I)=FCOF*EF**2*(1D0+2D0*RM1)*SQRT(MAX(0D0,1D0-4D0*RM1)) | |
12722 | IF(I.EQ.6) WID2=WIDS(6,1) | |
12723 | IF((I.EQ.7.OR.I.EQ.8)) WID2=WIDS(I,1) | |
12724 | ELSEIF(I.LE.12) THEN | |
12725 | C...QED -> l+ + l-. | |
12726 | EF=KCHG(9+2*(I-8),1)/3D0 | |
12727 | WDTP(I)=EF**2*(1D0+2D0*RM1)*SQRT(MAX(0D0,1D0-4D0*RM1)) | |
12728 | IF(I.EQ.12) WID2=WIDS(17,1) | |
12729 | ENDIF | |
12730 | WDTP(0)=WDTP(0)+WDTP(I) | |
12731 | IF(MDME(IDC,1).GT.0) THEN | |
12732 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12733 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12734 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12735 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12736 | ENDIF | |
12737 | 190 CONTINUE | |
12738 | ||
12739 | ELSEIF(KFLA.EQ.23) THEN | |
12740 | C...Z0: | |
12741 | ICASE=1 | |
12742 | XWC=1D0/(16D0*XW*XW1) | |
12743 | FAC=(AEM*XWC/3D0)*SHR | |
12744 | 200 CONTINUE | |
12745 | IF(MINT(61).GE.1.AND.ICASE.EQ.2) THEN | |
12746 | VINT(111)=0D0 | |
12747 | VINT(112)=0D0 | |
12748 | VINT(114)=0D0 | |
12749 | ENDIF | |
12750 | IF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
12751 | KFI=IABS(MINT(15)) | |
12752 | IF(KFI.GT.20) KFI=IABS(MINT(16)) | |
12753 | EI=KCHG(KFI,1)/3D0 | |
12754 | AI=SIGN(1D0,EI) | |
12755 | VI=AI-4D0*EI*XWV | |
12756 | SQMZ=PMAS(23,1)**2 | |
12757 | HZ=SHR*WDTP(0) | |
12758 | IF(MSTP(43).EQ.1.OR.MSTP(43).EQ.3) VINT(111)=1D0 | |
12759 | IF(MSTP(43).EQ.3) VINT(112)= | |
12760 | & 2D0*XWC*SH*(SH-SQMZ)/((SH-SQMZ)**2+HZ**2) | |
12761 | IF(MSTP(43).EQ.2.OR.MSTP(43).EQ.3) VINT(114)= | |
12762 | & XWC**2*SH**2/((SH-SQMZ)**2+HZ**2) | |
12763 | ENDIF | |
12764 | DO 210 I=1,MDCY(KC,3) | |
12765 | IDC=I+MDCY(KC,2)-1 | |
12766 | IF(MDME(IDC,1).LT.0) GOTO 210 | |
12767 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SH | |
12768 | RM2=PMAS(IABS(KFDP(IDC,2)),1)**2/SH | |
12769 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 210 | |
12770 | WID2=1D0 | |
12771 | IF(I.LE.8) THEN | |
12772 | C...Z0 -> q + qbar | |
12773 | EF=KCHG(I,1)/3D0 | |
12774 | AF=SIGN(1D0,EF+0.1D0) | |
12775 | VF=AF-4D0*EF*XWV | |
12776 | FCOF=3D0*RADC | |
12777 | IF(I.GE.6.AND.MSTP(35).GE.1) FCOF=FCOF*PYHFTH(SH,SH*RM1,1D0) | |
12778 | IF(I.EQ.6) WID2=WIDS(6,1) | |
12779 | IF((I.EQ.7.OR.I.EQ.8)) WID2=WIDS(I,1) | |
12780 | ELSEIF(I.LE.16) THEN | |
12781 | C...Z0 -> l+ + l-, nu + nubar | |
12782 | EF=KCHG(I+2,1)/3D0 | |
12783 | AF=SIGN(1D0,EF+0.1D0) | |
12784 | VF=AF-4D0*EF*XWV | |
12785 | FCOF=1D0 | |
12786 | IF((I.EQ.15.OR.I.EQ.16)) WID2=WIDS(2+I,1) | |
12787 | ENDIF | |
12788 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
12789 | IF(ICASE.EQ.1) THEN | |
12790 | WDTP(I)=FAC*FCOF*(VF**2*(1D0+2D0*RM1)+AF**2*(1D0-4D0*RM1))* | |
12791 | & BE34 | |
12792 | ELSEIF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
12793 | WDTP(I)=FAC*FCOF*((EI**2*VINT(111)*EF**2+EI*VI*VINT(112)* | |
12794 | & EF*VF+(VI**2+AI**2)*VINT(114)*VF**2)*(1D0+2D0*RM1)+ | |
12795 | & (VI**2+AI**2)*VINT(114)*AF**2*(1D0-4D0*RM1))*BE34 | |
12796 | ELSEIF(MINT(61).EQ.2.AND.ICASE.EQ.2) THEN | |
12797 | FGGF=FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
12798 | FGZF=FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
12799 | FZZF=FCOF*(VF**2*(1D0+2D0*RM1)+AF**2*(1D0-4D0*RM1))*BE34 | |
12800 | ENDIF | |
12801 | IF(ICASE.EQ.1) WDTP(0)=WDTP(0)+WDTP(I) | |
12802 | IF(MDME(IDC,1).GT.0) THEN | |
12803 | IF((ICASE.EQ.1.AND.MINT(61).NE.1).OR. | |
12804 | & (ICASE.EQ.2.AND.MINT(61).EQ.1)) THEN | |
12805 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12806 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+ | |
12807 | & WDTE(I,MDME(IDC,1)) | |
12808 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12809 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12810 | ENDIF | |
12811 | IF(MINT(61).EQ.2.AND.ICASE.EQ.2) THEN | |
12812 | IF(MSTP(43).EQ.1.OR.MSTP(43).EQ.3) VINT(111)= | |
12813 | & VINT(111)+FGGF*WID2 | |
12814 | IF(MSTP(43).EQ.3) VINT(112)=VINT(112)+FGZF*WID2 | |
12815 | IF(MSTP(43).EQ.2.OR.MSTP(43).EQ.3) VINT(114)= | |
12816 | & VINT(114)+FZZF*WID2 | |
12817 | ENDIF | |
12818 | ENDIF | |
12819 | 210 CONTINUE | |
12820 | IF(MINT(61).GE.1) ICASE=3-ICASE | |
12821 | IF(ICASE.EQ.2) GOTO 200 | |
12822 | ||
12823 | ELSEIF(KFLA.EQ.24) THEN | |
12824 | C...W+/-: | |
12825 | FAC=(AEM/(24D0*XW))*SHR | |
12826 | DO 220 I=1,MDCY(KC,3) | |
12827 | IDC=I+MDCY(KC,2)-1 | |
12828 | IF(MDME(IDC,1).LT.0) GOTO 220 | |
12829 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SH | |
12830 | RM2=PMAS(IABS(KFDP(IDC,2)),1)**2/SH | |
12831 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 220 | |
12832 | WID2=1D0 | |
12833 | IF(I.LE.16) THEN | |
12834 | C...W+/- -> q + qbar' | |
12835 | FCOF=3D0*RADC*VCKM((I-1)/4+1,MOD(I-1,4)+1) | |
12836 | IF(KFLR.GT.0) THEN | |
12837 | IF(MOD(I,4).EQ.3) WID2=WIDS(6,2) | |
12838 | IF(MOD(I,4).EQ.0) WID2=WIDS(8,2) | |
12839 | IF(I.GE.13) WID2=WID2*WIDS(7,3) | |
12840 | ELSE | |
12841 | IF(MOD(I,4).EQ.3) WID2=WIDS(6,3) | |
12842 | IF(MOD(I,4).EQ.0) WID2=WIDS(8,3) | |
12843 | IF(I.GE.13) WID2=WID2*WIDS(7,2) | |
12844 | ENDIF | |
12845 | ELSEIF(I.LE.20) THEN | |
12846 | C...W+/- -> l+/- + nu | |
12847 | FCOF=1D0 | |
12848 | IF(KFLR.GT.0) THEN | |
12849 | IF(I.EQ.20) WID2=WIDS(17,3)*WIDS(18,2) | |
12850 | ELSE | |
12851 | IF(I.EQ.20) WID2=WIDS(17,2)*WIDS(18,3) | |
12852 | ENDIF | |
12853 | ENDIF | |
12854 | WDTP(I)=FAC*FCOF*(2D0-RM1-RM2-(RM1-RM2)**2)* | |
12855 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
12856 | WDTP(0)=WDTP(0)+WDTP(I) | |
12857 | IF(MDME(IDC,1).GT.0) THEN | |
12858 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
12859 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
12860 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
12861 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
12862 | ENDIF | |
12863 | 220 CONTINUE | |
12864 | ||
12865 | ELSEIF(KFLA.EQ.25.OR.KFLA.EQ.35.OR.KFLA.EQ.36) THEN | |
12866 | C...h0 (or H0, or A0): | |
12867 | IF(MSTP(49).EQ.0) THEN | |
12868 | FAC=(AEM/(8D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
12869 | ELSE | |
12870 | FAC=(AEM/(8D0*XW))*(PMAS(KFHIGG,1)/PMAS(24,1))**2*SHR | |
12871 | ENDIF | |
12872 | DO 260 I=1,MDCY(KFHIGG,3) | |
12873 | IDC=I+MDCY(KFHIGG,2)-1 | |
12874 | IF(MDME(IDC,1).LT.0) GOTO 260 | |
12875 | KFC1=PYCOMP(KFDP(IDC,1)) | |
12876 | KFC2=PYCOMP(KFDP(IDC,2)) | |
12877 | RM1=PMAS(KFC1,1)**2/SH | |
12878 | RM2=PMAS(KFC2,1)**2/SH | |
12879 | IF(I.NE.16.AND.I.NE.17.AND.SQRT(RM1)+SQRT(RM2).GT.1D0) | |
12880 | & GOTO 260 | |
12881 | WID2=1D0 | |
12882 | ||
12883 | IF(I.LE.8) THEN | |
12884 | C...h0 -> q + qbar | |
12885 | WDTP(I)=FAC*3D0*RM1*(1D0-4D0*RM1)*SQRT(MAX(0D0, | |
12886 | & 1D0-4D0*RM1))*RADC | |
12887 | IF(MSTP(37).EQ.1.AND.MSTP(2).GE.1) WDTP(I)=WDTP(I)* | |
12888 | & (LOG(MAX(4D0,PARP(37)**2*RM1*SH/PARU(117)**2))/ | |
12889 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0-2D0*MSTU(118))) | |
12890 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
12891 | IF(MOD(I,2).EQ.1) WDTP(I)=WDTP(I)*PARU(151+10*IHIGG)**2 | |
12892 | IF(MOD(I,2).EQ.0) WDTP(I)=WDTP(I)*PARU(152+10*IHIGG)**2 | |
12893 | ENDIF | |
12894 | IF(I.EQ.6) WID2=WIDS(6,1) | |
12895 | IF((I.EQ.7.OR.I.EQ.8)) WID2=WIDS(I,1) | |
12896 | ||
12897 | ELSEIF(I.LE.12) THEN | |
12898 | C...h0 -> l+ + l- | |
12899 | WDTP(I)=FAC*RM1*(1D0-4D0*RM1)*SQRT(MAX(0D0,1D0-4D0*RM1)) | |
12900 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) WDTP(I)=WDTP(I)* | |
12901 | & PARU(153+10*IHIGG)**2 | |
12902 | IF(I.EQ.12) WID2=WIDS(17,1) | |
12903 | ||
12904 | ELSEIF(I.EQ.13) THEN | |
12905 | C...h0 -> g + g; quark loop contribution only | |
12906 | ETARE=0D0 | |
12907 | ETAIM=0D0 | |
12908 | DO 230 J=1,2*MSTP(1) | |
12909 | EPS=(2D0*PMAS(J,1))**2/SH | |
12910 | C...Loop integral; function of eps=4m^2/shat; different for A0. | |
12911 | IF(EPS.LE.1D0) THEN | |
12912 | IF(EPS.GT.1.D-4) THEN | |
12913 | ROOT=SQRT(1D0-EPS) | |
12914 | RLN=LOG((1D0+ROOT)/(1D0-ROOT)) | |
12915 | ELSE | |
12916 | RLN=LOG(4D0/EPS-2D0) | |
12917 | ENDIF | |
12918 | PHIRE=-0.25D0*(RLN**2-PARU(1)**2) | |
12919 | PHIIM=0.5D0*PARU(1)*RLN | |
12920 | ELSE | |
12921 | PHIRE=(ASIN(1D0/SQRT(EPS)))**2 | |
12922 | PHIIM=0D0 | |
12923 | ENDIF | |
12924 | IF(IHIGG.LE.2) THEN | |
12925 | ETAREJ=-0.5D0*EPS*(1D0+(1D0-EPS)*PHIRE) | |
12926 | ETAIMJ=-0.5D0*EPS*(1D0-EPS)*PHIIM | |
12927 | ELSE | |
12928 | ETAREJ=-0.5D0*EPS*PHIRE | |
12929 | ETAIMJ=-0.5D0*EPS*PHIIM | |
12930 | ENDIF | |
12931 | C...Couplings (=1 for standard model Higgs). | |
12932 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
12933 | IF(MOD(J,2).EQ.1) THEN | |
12934 | ETAREJ=ETAREJ*PARU(151+10*IHIGG) | |
12935 | ETAIMJ=ETAIMJ*PARU(151+10*IHIGG) | |
12936 | ELSE | |
12937 | ETAREJ=ETAREJ*PARU(152+10*IHIGG) | |
12938 | ETAIMJ=ETAIMJ*PARU(152+10*IHIGG) | |
12939 | ENDIF | |
12940 | ENDIF | |
12941 | ETARE=ETARE+ETAREJ | |
12942 | ETAIM=ETAIM+ETAIMJ | |
12943 | 230 CONTINUE | |
12944 | ETA2=ETARE**2+ETAIM**2 | |
12945 | WDTP(I)=FAC*(AS/PARU(1))**2*ETA2 | |
12946 | ||
12947 | ELSEIF(I.EQ.14) THEN | |
12948 | C...h0 -> gamma + gamma; quark, lepton, W+- and H+- loop contributions | |
12949 | ETARE=0D0 | |
12950 | ETAIM=0D0 | |
12951 | JMAX=3*MSTP(1)+1 | |
12952 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) JMAX=JMAX+1 | |
12953 | DO 240 J=1,JMAX | |
12954 | IF(J.LE.2*MSTP(1)) THEN | |
12955 | EJ=KCHG(J,1)/3D0 | |
12956 | EPS=(2D0*PMAS(J,1))**2/SH | |
12957 | ELSEIF(J.LE.3*MSTP(1)) THEN | |
12958 | JL=2*(J-2*MSTP(1))-1 | |
12959 | EJ=KCHG(10+JL,1)/3D0 | |
12960 | EPS=(2D0*PMAS(10+JL,1))**2/SH | |
12961 | ELSEIF(J.EQ.3*MSTP(1)+1) THEN | |
12962 | EPS=(2D0*PMAS(24,1))**2/SH | |
12963 | ELSE | |
12964 | EPS=(2D0*PMAS(37,1))**2/SH | |
12965 | ENDIF | |
12966 | C...Loop integral; function of eps=4m^2/shat. | |
12967 | IF(EPS.LE.1D0) THEN | |
12968 | IF(EPS.GT.1.D-4) THEN | |
12969 | ROOT=SQRT(1D0-EPS) | |
12970 | RLN=LOG((1D0+ROOT)/(1D0-ROOT)) | |
12971 | ELSE | |
12972 | RLN=LOG(4D0/EPS-2D0) | |
12973 | ENDIF | |
12974 | PHIRE=-0.25D0*(RLN**2-PARU(1)**2) | |
12975 | PHIIM=0.5D0*PARU(1)*RLN | |
12976 | ELSE | |
12977 | PHIRE=(ASIN(1D0/SQRT(EPS)))**2 | |
12978 | PHIIM=0D0 | |
12979 | ENDIF | |
12980 | IF(J.LE.3*MSTP(1)) THEN | |
12981 | C...Fermion loops: loop integral different for A0; charges. | |
12982 | IF(IHIGG.LE.2) THEN | |
12983 | PHIPRE=-0.5D0*EPS*(1D0+(1D0-EPS)*PHIRE) | |
12984 | PHIPIM=-0.5D0*EPS*(1D0-EPS)*PHIIM | |
12985 | ELSE | |
12986 | PHIPRE=-0.5D0*EPS*PHIRE | |
12987 | PHIPIM=-0.5D0*EPS*PHIIM | |
12988 | ENDIF | |
12989 | IF(J.LE.2*MSTP(1).AND.MOD(J,2).EQ.1) THEN | |
12990 | EJC=3D0*EJ**2 | |
12991 | EJH=PARU(151+10*IHIGG) | |
12992 | ELSEIF(J.LE.2*MSTP(1)) THEN | |
12993 | EJC=3D0*EJ**2 | |
12994 | EJH=PARU(152+10*IHIGG) | |
12995 | ELSE | |
12996 | EJC=EJ**2 | |
12997 | EJH=PARU(153+10*IHIGG) | |
12998 | ENDIF | |
12999 | IF(MSTP(4).EQ.0.AND.IHIGG.EQ.1) EJH=1D0 | |
13000 | ETAREJ=EJC*EJH*PHIPRE | |
13001 | ETAIMJ=EJC*EJH*PHIPIM | |
13002 | ELSEIF(J.EQ.3*MSTP(1)+1) THEN | |
13003 | C...W loops: loop integral and charges. | |
13004 | ETAREJ=0.5D0+0.75D0*EPS*(1D0+(2D0-EPS)*PHIRE) | |
13005 | ETAIMJ=0.75D0*EPS*(2D0-EPS)*PHIIM | |
13006 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
13007 | ETAREJ=ETAREJ*PARU(155+10*IHIGG) | |
13008 | ETAIMJ=ETAIMJ*PARU(155+10*IHIGG) | |
13009 | ENDIF | |
13010 | ELSE | |
13011 | C...Charged H loops: loop integral and charges. | |
13012 | FACHHH=(PMAS(24,1)/PMAS(37,1))**2* | |
13013 | & PARU(158+10*IHIGG+2*(IHIGG/3)) | |
13014 | ETAREJ=EPS*(1D0-EPS*PHIRE)*FACHHH | |
13015 | ETAIMJ=-EPS**2*PHIIM*FACHHH | |
13016 | ENDIF | |
13017 | ETARE=ETARE+ETAREJ | |
13018 | ETAIM=ETAIM+ETAIMJ | |
13019 | 240 CONTINUE | |
13020 | ETA2=ETARE**2+ETAIM**2 | |
13021 | WDTP(I)=FAC*(AEM/PARU(1))**2*0.5D0*ETA2 | |
13022 | ||
13023 | ELSEIF(I.EQ.15) THEN | |
13024 | C...h0 -> gamma + Z0; quark, lepton, W and H+- loop contributions | |
13025 | ETARE=0D0 | |
13026 | ETAIM=0D0 | |
13027 | JMAX=3*MSTP(1)+1 | |
13028 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) JMAX=JMAX+1 | |
13029 | DO 250 J=1,JMAX | |
13030 | IF(J.LE.2*MSTP(1)) THEN | |
13031 | EJ=KCHG(J,1)/3D0 | |
13032 | AJ=SIGN(1D0,EJ+0.1D0) | |
13033 | VJ=AJ-4D0*EJ*XWV | |
13034 | EPS=(2D0*PMAS(J,1))**2/SH | |
13035 | EPSP=(2D0*PMAS(J,1)/PMAS(23,1))**2 | |
13036 | ELSEIF(J.LE.3*MSTP(1)) THEN | |
13037 | JL=2*(J-2*MSTP(1))-1 | |
13038 | EJ=KCHG(10+JL,1)/3D0 | |
13039 | AJ=SIGN(1D0,EJ+0.1D0) | |
13040 | VJ=AJ-4D0*EJ*XWV | |
13041 | EPS=(2D0*PMAS(10+JL,1))**2/SH | |
13042 | EPSP=(2D0*PMAS(10+JL,1)/PMAS(23,1))**2 | |
13043 | ELSE | |
13044 | EPS=(2D0*PMAS(24,1))**2/SH | |
13045 | EPSP=(2D0*PMAS(24,1)/PMAS(23,1))**2 | |
13046 | ENDIF | |
13047 | C...Loop integrals; functions of eps=4m^2/shat and eps'=4m^2/m_Z^2. | |
13048 | IF(EPS.LE.1D0) THEN | |
13049 | ROOT=SQRT(1D0-EPS) | |
13050 | IF(EPS.GT.1.D-4) THEN | |
13051 | RLN=LOG((1D0+ROOT)/(1D0-ROOT)) | |
13052 | ELSE | |
13053 | RLN=LOG(4D0/EPS-2D0) | |
13054 | ENDIF | |
13055 | PHIRE=-0.25D0*(RLN**2-PARU(1)**2) | |
13056 | PHIIM=0.5D0*PARU(1)*RLN | |
13057 | PSIRE=0.5D0*ROOT*RLN | |
13058 | PSIIM=-0.5D0*ROOT*PARU(1) | |
13059 | ELSE | |
13060 | PHIRE=(ASIN(1D0/SQRT(EPS)))**2 | |
13061 | PHIIM=0D0 | |
13062 | PSIRE=SQRT(EPS-1D0)*ASIN(1D0/SQRT(EPS)) | |
13063 | PSIIM=0D0 | |
13064 | ENDIF | |
13065 | IF(EPSP.LE.1D0) THEN | |
13066 | ROOT=SQRT(1D0-EPSP) | |
13067 | IF(EPSP.GT.1.D-4) THEN | |
13068 | RLN=LOG((1D0+ROOT)/(1D0-ROOT)) | |
13069 | ELSE | |
13070 | RLN=LOG(4D0/EPSP-2D0) | |
13071 | ENDIF | |
13072 | PHIREP=-0.25D0*(RLN**2-PARU(1)**2) | |
13073 | PHIIMP=0.5D0*PARU(1)*RLN | |
13074 | PSIREP=0.5D0*ROOT*RLN | |
13075 | PSIIMP=-0.5D0*ROOT*PARU(1) | |
13076 | ELSE | |
13077 | PHIREP=(ASIN(1D0/SQRT(EPSP)))**2 | |
13078 | PHIIMP=0D0 | |
13079 | PSIREP=SQRT(EPSP-1D0)*ASIN(1D0/SQRT(EPSP)) | |
13080 | PSIIMP=0D0 | |
13081 | ENDIF | |
13082 | FXYRE=EPS*EPSP/(8D0*(EPS-EPSP))*(1D0+EPS*EPSP/(EPS-EPSP)* | |
13083 | & (PHIRE-PHIREP)+2D0*EPS/(EPS-EPSP)*(PSIRE-PSIREP)) | |
13084 | FXYIM=EPS**2*EPSP/(8D0*(EPS-EPSP)**2)* | |
13085 | & (EPSP*(PHIIM-PHIIMP)+2D0*(PSIIM-PSIIMP)) | |
13086 | F1RE=-EPS*EPSP/(2D0*(EPS-EPSP))*(PHIRE-PHIREP) | |
13087 | F1IM=-EPS*EPSP/(2D0*(EPS-EPSP))*(PHIIM-PHIIMP) | |
13088 | IF(J.LE.3*MSTP(1)) THEN | |
13089 | C...Fermion loops: loop integral different for A0; charges. | |
13090 | IF(IHIGG.EQ.3) FXYRE=0D0 | |
13091 | IF(IHIGG.EQ.3) FXYIM=0D0 | |
13092 | IF(J.LE.2*MSTP(1).AND.MOD(J,2).EQ.1) THEN | |
13093 | EJC=-3D0*EJ*VJ | |
13094 | EJH=PARU(151+10*IHIGG) | |
13095 | ELSEIF(J.LE.2*MSTP(1)) THEN | |
13096 | EJC=-3D0*EJ*VJ | |
13097 | EJH=PARU(152+10*IHIGG) | |
13098 | ELSE | |
13099 | EJC=-EJ*VJ | |
13100 | EJH=PARU(153+10*IHIGG) | |
13101 | ENDIF | |
13102 | IF(MSTP(4).EQ.0.AND.IHIGG.EQ.1) EJH=1D0 | |
13103 | ETAREJ=EJC*EJH*(FXYRE-0.25D0*F1RE) | |
13104 | ETAIMJ=EJC*EJH*(FXYIM-0.25D0*F1IM) | |
13105 | ELSEIF(J.EQ.3*MSTP(1)+1) THEN | |
13106 | C...W loops: loop integral and charges. | |
13107 | HEPS=(1D0+2D0/EPS)*XW/XW1-(5D0+2D0/EPS) | |
13108 | ETAREJ=-XW1*((3D0-XW/XW1)*F1RE+HEPS*FXYRE) | |
13109 | ETAIMJ=-XW1*((3D0-XW/XW1)*F1IM+HEPS*FXYIM) | |
13110 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
13111 | ETAREJ=ETAREJ*PARU(155+10*IHIGG) | |
13112 | ETAIMJ=ETAIMJ*PARU(155+10*IHIGG) | |
13113 | ENDIF | |
13114 | ELSE | |
13115 | C...Charged H loops: loop integral and charges. | |
13116 | FACHHH=(PMAS(24,1)/PMAS(37,1))**2*(1D0-2D0*XW)* | |
13117 | & PARU(158+10*IHIGG+2*(IHIGG/3)) | |
13118 | ETAREJ=FACHHH*FXYRE | |
13119 | ETAIMJ=FACHHH*FXYIM | |
13120 | ENDIF | |
13121 | ETARE=ETARE+ETAREJ | |
13122 | ETAIM=ETAIM+ETAIMJ | |
13123 | 250 CONTINUE | |
13124 | ETA2=(ETARE**2+ETAIM**2)/(XW*XW1) | |
13125 | WDTP(I)=FAC*(AEM/PARU(1))**2*(1D0-PMAS(23,1)**2/SH)**3*ETA2 | |
13126 | WID2=WIDS(23,2) | |
13127 | ||
13128 | ELSEIF(I.LE.17) THEN | |
13129 | C...h0 -> Z0 + Z0, W+ + W- | |
13130 | PM1=PMAS(IABS(KFDP(IDC,1)),1) | |
13131 | PG1=PMAS(IABS(KFDP(IDC,1)),2) | |
13132 | IF(MINT(62).GE.1) THEN | |
13133 | IF(MSTP(42).EQ.0.OR.(4D0*(PM1+10D0*PG1)**2.LT.SH.AND. | |
13134 | & CKIN(46).LT.CKIN(45).AND.CKIN(48).LT.CKIN(47).AND. | |
13135 | & MAX(CKIN(45),CKIN(47)).LT.PM1-10D0*PG1)) THEN | |
13136 | MOFSV(IHIGG,I-15)=0 | |
13137 | WIDW=(1D0-4D0*RM1+12D0*RM1**2)*SQRT(MAX(0D0, | |
13138 | & 1D0-4D0*RM1)) | |
13139 | WID2=1D0 | |
13140 | ELSE | |
13141 | MOFSV(IHIGG,I-15)=1 | |
13142 | RMAS=SQRT(MAX(0D0,SH)) | |
13143 | CALL PYOFSH(1,KFLA,KFDP(IDC,1),KFDP(IDC,2),RMAS,WIDW, | |
13144 | & WID2) | |
13145 | WIDWSV(IHIGG,I-15)=WIDW | |
13146 | WID2SV(IHIGG,I-15)=WID2 | |
13147 | ENDIF | |
13148 | ELSE | |
13149 | IF(MOFSV(IHIGG,I-15).EQ.0) THEN | |
13150 | WIDW=(1D0-4D0*RM1+12D0*RM1**2)*SQRT(MAX(0D0, | |
13151 | & 1D0-4D0*RM1)) | |
13152 | WID2=1D0 | |
13153 | ELSE | |
13154 | WIDW=WIDWSV(IHIGG,I-15) | |
13155 | WID2=WID2SV(IHIGG,I-15) | |
13156 | ENDIF | |
13157 | ENDIF | |
13158 | WDTP(I)=FAC*WIDW/(2D0*(18-I)) | |
13159 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) WDTP(I)=WDTP(I)* | |
13160 | & PARU(138+I+10*IHIGG)**2 | |
13161 | WID2=WID2*WIDS(7+I,1) | |
13162 | ||
13163 | ELSEIF(I.EQ.18.AND.KFLA.EQ.35) THEN | |
13164 | C***H0 -> Z0 + h0 (not yet implemented). | |
13165 | ||
13166 | ELSEIF(I.EQ.19.AND.KFLA.EQ.35) THEN | |
13167 | C...H0 -> h0 + h0. | |
13168 | WDTP(I)=FAC*PARU(176)**2*0.25D0*PMAS(23,1)**4/SH**2* | |
13169 | & SQRT(MAX(0D0,1D0-4D0*RM1)) | |
13170 | WID2=WIDS(25,2)**2 | |
13171 | ||
13172 | ELSEIF(I.EQ.20.AND.KFLA.EQ.35) THEN | |
13173 | C...H0 -> A0 + A0. | |
13174 | WDTP(I)=FAC*PARU(177)**2*0.25D0*PMAS(23,1)**4/SH**2* | |
13175 | & SQRT(MAX(0D0,1D0-4D0*RM1)) | |
13176 | WID2=WIDS(36,2)**2 | |
13177 | ||
13178 | ELSEIF(I.EQ.18.AND.KFLA.EQ.36) THEN | |
13179 | C...A0 -> Z0 + h0. | |
13180 | WDTP(I)=FAC*PARU(186)**2*0.5D0*SQRT(MAX(0D0, | |
13181 | & (1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13182 | WID2=WIDS(23,2)*WIDS(25,2) | |
13183 | ||
13184 | CMRENNA++ | |
13185 | ELSE | |
13186 | C...Add in SUSY decays (two-body) by rescaling by phase space factor. | |
13187 | RM10=RM1*SH/PMR**2 | |
13188 | RM20=RM2*SH/PMR**2 | |
13189 | WFAC0=1D0+RM10**2+RM20**2-2D0*(RM10+RM20+RM10*RM20) | |
13190 | WFAC=1D0+RM1**2+RM2**2-2D0*(RM1+RM2+RM1*RM2) | |
13191 | IF(WFAC.LE.0D0 .OR. WFAC0.LE.0D0) THEN | |
13192 | WFAC=0D0 | |
13193 | ELSE | |
13194 | WFAC=WFAC/WFAC0 | |
13195 | ENDIF | |
13196 | WDTP(I)=PMAS(KFLA,2)*BRAT(IDC)*(SHR/PMR)*SQRT(WFAC) | |
13197 | CMRENNA-- | |
13198 | IF(KFC2.EQ.KFC1) THEN | |
13199 | WID2=WIDS(KFC1,1) | |
13200 | ELSE | |
13201 | KSGN1=2 | |
13202 | IF(KFDP(IDC,1).LT.0) KSGN1=3 | |
13203 | KSGN2=2 | |
13204 | IF(KFDP(IDC,2).LT.0) KSGN2=3 | |
13205 | WID2=WIDS(KFC1,KSGN1)*WIDS(KFC2,KSGN2) | |
13206 | ENDIF | |
13207 | ENDIF | |
13208 | WDTP(0)=WDTP(0)+WDTP(I) | |
13209 | IF(MDME(IDC,1).GT.0) THEN | |
13210 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13211 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13212 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13213 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13214 | ENDIF | |
13215 | 260 CONTINUE | |
13216 | ||
13217 | ELSEIF(KFLA.EQ.32) THEN | |
13218 | C...Z'0: | |
13219 | ICASE=1 | |
13220 | XWC=1D0/(16D0*XW*XW1) | |
13221 | FAC=(AEM*XWC/3D0)*SHR | |
13222 | VINT(117)=0D0 | |
13223 | 270 CONTINUE | |
13224 | IF(MINT(61).GE.1.AND.ICASE.EQ.2) THEN | |
13225 | VINT(111)=0D0 | |
13226 | VINT(112)=0D0 | |
13227 | VINT(113)=0D0 | |
13228 | VINT(114)=0D0 | |
13229 | VINT(115)=0D0 | |
13230 | VINT(116)=0D0 | |
13231 | ENDIF | |
13232 | IF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
13233 | KFAI=IABS(MINT(15)) | |
13234 | EI=KCHG(KFAI,1)/3D0 | |
13235 | AI=SIGN(1D0,EI+0.1D0) | |
13236 | VI=AI-4D0*EI*XWV | |
13237 | KFAIC=1 | |
13238 | IF(KFAI.LE.10.AND.MOD(KFAI,2).EQ.0) KFAIC=2 | |
13239 | IF(KFAI.GT.10.AND.MOD(KFAI,2).NE.0) KFAIC=3 | |
13240 | IF(KFAI.GT.10.AND.MOD(KFAI,2).EQ.0) KFAIC=4 | |
13241 | VPI=PARU(119+2*KFAIC) | |
13242 | API=PARU(120+2*KFAIC) | |
13243 | SQMZ=PMAS(23,1)**2 | |
13244 | HZ=SHR*FAC*VINT(117) | |
13245 | SQMZP=PMAS(32,1)**2 | |
13246 | HZP=SHR*FAC*WDTP(0) | |
13247 | IF(MSTP(44).EQ.1.OR.MSTP(44).EQ.4.OR.MSTP(44).EQ.5.OR. | |
13248 | & MSTP(44).EQ.7) VINT(111)=1D0 | |
13249 | IF(MSTP(44).EQ.4.OR.MSTP(44).EQ.7) VINT(112)= | |
13250 | & 2D0*XWC*SH*(SH-SQMZ)/((SH-SQMZ)**2+HZ**2) | |
13251 | IF(MSTP(44).EQ.5.OR.MSTP(44).EQ.7) VINT(113)= | |
13252 | & 2D0*XWC*SH*(SH-SQMZP)/((SH-SQMZP)**2+HZP**2) | |
13253 | IF(MSTP(44).EQ.2.OR.MSTP(44).EQ.4.OR.MSTP(44).EQ.6.OR. | |
13254 | & MSTP(44).EQ.7) VINT(114)=XWC**2*SH**2/((SH-SQMZ)**2+HZ**2) | |
13255 | IF(MSTP(44).EQ.6.OR.MSTP(44).EQ.7) VINT(115)= | |
13256 | & 2D0*XWC**2*SH**2*((SH-SQMZ)*(SH-SQMZP)+HZ*HZP)/ | |
13257 | & (((SH-SQMZ)**2+HZ**2)*((SH-SQMZP)**2+HZP**2)) | |
13258 | IF(MSTP(44).EQ.3.OR.MSTP(44).EQ.5.OR.MSTP(44).EQ.6.OR. | |
13259 | & MSTP(44).EQ.7) VINT(116)=XWC**2*SH**2/((SH-SQMZP)**2+HZP**2) | |
13260 | ENDIF | |
13261 | DO 280 I=1,MDCY(KC,3) | |
13262 | IDC=I+MDCY(KC,2)-1 | |
13263 | IF(MDME(IDC,1).LT.0) GOTO 280 | |
13264 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13265 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13266 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0.OR.MDME(IDC,1).LT.0) GOTO 280 | |
13267 | WID2=1D0 | |
13268 | IF(I.LE.16) THEN | |
13269 | IF(I.LE.8) THEN | |
13270 | C...Z'0 -> q + qbar | |
13271 | EF=KCHG(I,1)/3D0 | |
13272 | AF=SIGN(1D0,EF+0.1D0) | |
13273 | VF=AF-4D0*EF*XWV | |
13274 | VPF=PARU(123-2*MOD(I,2)) | |
13275 | APF=PARU(124-2*MOD(I,2)) | |
13276 | FCOF=3D0*RADC | |
13277 | IF(I.GE.6.AND.MSTP(35).GE.1) FCOF=FCOF* | |
13278 | & PYHFTH(SH,SH*RM1,1D0) | |
13279 | IF(I.EQ.6) WID2=WIDS(6,1) | |
13280 | IF((I.EQ.7.OR.I.EQ.8)) WID2=WIDS(I,1) | |
13281 | ELSEIF(I.LE.16) THEN | |
13282 | C...Z'0 -> l+ + l-, nu + nubar | |
13283 | EF=KCHG(I+2,1)/3D0 | |
13284 | AF=SIGN(1D0,EF+0.1D0) | |
13285 | VF=AF-4D0*EF*XWV | |
13286 | VPF=PARU(127-2*MOD(I,2)) | |
13287 | APF=PARU(128-2*MOD(I,2)) | |
13288 | FCOF=1D0 | |
13289 | IF((I.EQ.15.OR.I.EQ.16)) WID2=WIDS(2+I,1) | |
13290 | ENDIF | |
13291 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
13292 | IF(ICASE.EQ.1) THEN | |
13293 | WDTPZ=FCOF*(VF**2*(1D0+2D0*RM1)+AF**2*(1D0-4D0*RM1))*BE34 | |
13294 | WDTP(I)=FAC*FCOF*(VPF**2*(1D0+2D0*RM1)+ | |
13295 | & APF**2*(1D0-4D0*RM1))*BE34 | |
13296 | ELSEIF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
13297 | WDTP(I)=FAC*FCOF*((EI**2*VINT(111)*EF**2+EI*VI*VINT(112)* | |
13298 | & EF*VF+EI*VPI*VINT(113)*EF*VPF+(VI**2+AI**2)*VINT(114)* | |
13299 | & VF**2+(VI*VPI+AI*API)*VINT(115)*VF*VPF+(VPI**2+API**2)* | |
13300 | & VINT(116)*VPF**2)*(1D0+2D0*RM1)+((VI**2+AI**2)*VINT(114)* | |
13301 | & AF**2+(VI*VPI+AI*API)*VINT(115)*AF*APF+(VPI**2+API**2)* | |
13302 | & VINT(116)*APF**2)*(1D0-4D0*RM1))*BE34 | |
13303 | ELSEIF(MINT(61).EQ.2) THEN | |
13304 | FGGF=FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
13305 | FGZF=FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
13306 | FGZPF=FCOF*EF*VPF*(1D0+2D0*RM1)*BE34 | |
13307 | FZZF=FCOF*(VF**2*(1D0+2D0*RM1)+AF**2*(1D0-4D0*RM1))*BE34 | |
13308 | FZZPF=FCOF*(VF*VPF*(1D0+2D0*RM1)+AF*APF*(1D0-4D0*RM1))* | |
13309 | & BE34 | |
13310 | FZPZPF=FCOF*(VPF**2*(1D0+2D0*RM1)+APF**2*(1D0-4D0*RM1))* | |
13311 | & BE34 | |
13312 | ENDIF | |
13313 | ELSEIF(I.EQ.17) THEN | |
13314 | C...Z'0 -> W+ + W- | |
13315 | WDTPZP=PARU(129)**2*XW1**2* | |
13316 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3* | |
13317 | & (1D0+10D0*RM1+10D0*RM2+RM1**2+RM2**2+10D0*RM1*RM2) | |
13318 | IF(ICASE.EQ.1) THEN | |
13319 | WDTPZ=0D0 | |
13320 | WDTP(I)=FAC*WDTPZP | |
13321 | ELSEIF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
13322 | WDTP(I)=FAC*(VPI**2+API**2)*VINT(116)*WDTPZP | |
13323 | ELSEIF(MINT(61).EQ.2) THEN | |
13324 | FGGF=0D0 | |
13325 | FGZF=0D0 | |
13326 | FGZPF=0D0 | |
13327 | FZZF=0D0 | |
13328 | FZZPF=0D0 | |
13329 | FZPZPF=WDTPZP | |
13330 | ENDIF | |
13331 | WID2=WIDS(24,1) | |
13332 | ELSEIF(I.EQ.18) THEN | |
13333 | C...Z'0 -> H+ + H- | |
13334 | CZC=2D0*(1D0-2D0*XW) | |
13335 | BE34C=(1D0-4D0*RM1)*SQRT(MAX(0D0,1D0-4D0*RM1)) | |
13336 | IF(ICASE.EQ.1) THEN | |
13337 | WDTPZ=0.25D0*PARU(142)**2*CZC**2*BE34C | |
13338 | WDTP(I)=FAC*0.25D0*PARU(143)**2*CZC**2*BE34C | |
13339 | ELSEIF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
13340 | WDTP(I)=FAC*0.25D0*(EI**2*VINT(111)+PARU(142)*EI*VI* | |
13341 | & VINT(112)*CZC+PARU(143)*EI*VPI*VINT(113)*CZC+PARU(142)**2* | |
13342 | & (VI**2+AI**2)*VINT(114)*CZC**2+PARU(142)*PARU(143)* | |
13343 | & (VI*VPI+AI*API)*VINT(115)*CZC**2+PARU(143)**2* | |
13344 | & (VPI**2+API**2)*VINT(116)*CZC**2)*BE34C | |
13345 | ELSEIF(MINT(61).EQ.2) THEN | |
13346 | FGGF=0.25D0*BE34C | |
13347 | FGZF=0.25D0*PARU(142)*CZC*BE34C | |
13348 | FGZPF=0.25D0*PARU(143)*CZC*BE34C | |
13349 | FZZF=0.25D0*PARU(142)**2*CZC**2*BE34C | |
13350 | FZZPF=0.25D0*PARU(142)*PARU(143)*CZC**2*BE34C | |
13351 | FZPZPF=0.25D0*PARU(143)**2*CZC**2*BE34C | |
13352 | ENDIF | |
13353 | WID2=WIDS(37,1) | |
13354 | ELSEIF(I.EQ.19) THEN | |
13355 | C...Z'0 -> Z0 + gamma. | |
13356 | ELSEIF(I.EQ.20) THEN | |
13357 | C...Z'0 -> Z0 + h0 | |
13358 | FLAM=SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13359 | WDTPZP=PARU(145)**2*4D0*ABS(1D0-2D0*XW)* | |
13360 | & (3D0*RM1+0.25D0*FLAM**2)*FLAM | |
13361 | IF(ICASE.EQ.1) THEN | |
13362 | WDTPZ=0D0 | |
13363 | WDTP(I)=FAC*WDTPZP | |
13364 | ELSEIF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
13365 | WDTP(I)=FAC*(VPI**2+API**2)*VINT(116)*WDTPZP | |
13366 | ELSEIF(MINT(61).EQ.2) THEN | |
13367 | FGGF=0D0 | |
13368 | FGZF=0D0 | |
13369 | FGZPF=0D0 | |
13370 | FZZF=0D0 | |
13371 | FZZPF=0D0 | |
13372 | FZPZPF=WDTPZP | |
13373 | ENDIF | |
13374 | WID2=WIDS(23,2)*WIDS(25,2) | |
13375 | ELSEIF(I.EQ.21.OR.I.EQ.22) THEN | |
13376 | C...Z' -> h0 + A0 or H0 + A0. | |
13377 | BE34C=SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13378 | IF(I.EQ.21) THEN | |
13379 | CZAH=PARU(186) | |
13380 | CZPAH=PARU(188) | |
13381 | ELSE | |
13382 | CZAH=PARU(187) | |
13383 | CZPAH=PARU(189) | |
13384 | ENDIF | |
13385 | IF(ICASE.EQ.1) THEN | |
13386 | WDTPZ=CZAH**2*BE34C | |
13387 | WDTP(I)=FAC*CZPAH**2*BE34C | |
13388 | ELSEIF(MINT(61).EQ.1.AND.ICASE.EQ.2) THEN | |
13389 | WDTP(I)=FAC*(CZAH**2*(VI**2+AI**2)*VINT(114)+CZAH*CZPAH* | |
13390 | & (VI*VPI+AI*API)*VINT(115)+CZPAH**2*(VPI**2+API**2)* | |
13391 | & VINT(116))*BE34C | |
13392 | ELSEIF(MINT(61).EQ.2) THEN | |
13393 | FGGF=0D0 | |
13394 | FGZF=0D0 | |
13395 | FGZPF=0D0 | |
13396 | FZZF=CZAH**2*BE34C | |
13397 | FZZPF=CZAH*CZPAH*BE34C | |
13398 | FZPZPF=CZPAH**2*BE34C | |
13399 | ENDIF | |
13400 | IF(I.EQ.21) WID2=WIDS(25,2)*WIDS(36,2) | |
13401 | IF(I.EQ.22) WID2=WIDS(35,2)*WIDS(36,2) | |
13402 | ENDIF | |
13403 | IF(ICASE.EQ.1) THEN | |
13404 | VINT(117)=VINT(117)+WDTPZ | |
13405 | WDTP(0)=WDTP(0)+WDTP(I) | |
13406 | ENDIF | |
13407 | IF(MDME(IDC,1).GT.0) THEN | |
13408 | IF((ICASE.EQ.1.AND.MINT(61).NE.1).OR. | |
13409 | & (ICASE.EQ.2.AND.MINT(61).EQ.1)) THEN | |
13410 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13411 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+ | |
13412 | & WDTE(I,MDME(IDC,1)) | |
13413 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13414 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13415 | ENDIF | |
13416 | IF(MINT(61).EQ.2.AND.ICASE.EQ.2) THEN | |
13417 | IF(MSTP(44).EQ.1.OR.MSTP(44).EQ.4.OR.MSTP(44).EQ.5.OR. | |
13418 | & MSTP(44).EQ.7) VINT(111)=VINT(111)+FGGF*WID2 | |
13419 | IF(MSTP(44).EQ.4.OR.MSTP(44).EQ.7) VINT(112)=VINT(112)+ | |
13420 | & FGZF*WID2 | |
13421 | IF(MSTP(44).EQ.5.OR.MSTP(44).EQ.7) VINT(113)=VINT(113)+ | |
13422 | & FGZPF*WID2 | |
13423 | IF(MSTP(44).EQ.2.OR.MSTP(44).EQ.4.OR.MSTP(44).EQ.6.OR. | |
13424 | & MSTP(44).EQ.7) VINT(114)=VINT(114)+FZZF*WID2 | |
13425 | IF(MSTP(44).EQ.6.OR.MSTP(44).EQ.7) VINT(115)=VINT(115)+ | |
13426 | & FZZPF*WID2 | |
13427 | IF(MSTP(44).EQ.3.OR.MSTP(44).EQ.5.OR.MSTP(44).EQ.6.OR. | |
13428 | & MSTP(44).EQ.7) VINT(116)=VINT(116)+FZPZPF*WID2 | |
13429 | ENDIF | |
13430 | ENDIF | |
13431 | 280 CONTINUE | |
13432 | IF(MINT(61).GE.1) ICASE=3-ICASE | |
13433 | IF(ICASE.EQ.2) GOTO 270 | |
13434 | ||
13435 | ELSEIF(KFLA.EQ.34) THEN | |
13436 | C...W'+/-: | |
13437 | FAC=(AEM/(24D0*XW))*SHR | |
13438 | DO 290 I=1,MDCY(KC,3) | |
13439 | IDC=I+MDCY(KC,2)-1 | |
13440 | IF(MDME(IDC,1).LT.0) GOTO 290 | |
13441 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13442 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13443 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 290 | |
13444 | WID2=1D0 | |
13445 | IF(I.LE.20) THEN | |
13446 | IF(I.LE.16) THEN | |
13447 | C...W'+/- -> q + qbar' | |
13448 | FCOF=3D0*RADC*(PARU(131)**2+PARU(132)**2)* | |
13449 | & VCKM((I-1)/4+1,MOD(I-1,4)+1) | |
13450 | IF(KFLR.GT.0) THEN | |
13451 | IF(MOD(I,4).EQ.3) WID2=WIDS(6,2) | |
13452 | IF(MOD(I,4).EQ.0) WID2=WIDS(8,2) | |
13453 | IF(I.GE.13) WID2=WID2*WIDS(7,3) | |
13454 | ELSE | |
13455 | IF(MOD(I,4).EQ.3) WID2=WIDS(6,3) | |
13456 | IF(MOD(I,4).EQ.0) WID2=WIDS(8,3) | |
13457 | IF(I.GE.13) WID2=WID2*WIDS(7,2) | |
13458 | ENDIF | |
13459 | ELSEIF(I.LE.20) THEN | |
13460 | C...W'+/- -> l+/- + nu | |
13461 | FCOF=PARU(133)**2+PARU(134)**2 | |
13462 | IF(KFLR.GT.0) THEN | |
13463 | IF(I.EQ.20) WID2=WIDS(17,3)*WIDS(18,2) | |
13464 | ELSE | |
13465 | IF(I.EQ.20) WID2=WIDS(17,2)*WIDS(18,3) | |
13466 | ENDIF | |
13467 | ENDIF | |
13468 | WDTP(I)=FAC*FCOF*0.5D0*(2D0-RM1-RM2-(RM1-RM2)**2)* | |
13469 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13470 | ELSEIF(I.EQ.21) THEN | |
13471 | C...W'+/- -> W+/- + Z0 | |
13472 | WDTP(I)=FAC*PARU(135)**2*0.5D0*XW1*(RM1/RM2)* | |
13473 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3* | |
13474 | & (1D0+10D0*RM1+10D0*RM2+RM1**2+RM2**2+10D0*RM1*RM2) | |
13475 | IF(KFLR.GT.0) WID2=WIDS(24,2)*WIDS(23,2) | |
13476 | IF(KFLR.LT.0) WID2=WIDS(24,3)*WIDS(23,2) | |
13477 | ELSEIF(I.EQ.23) THEN | |
13478 | C...W'+/- -> W+/- + h0 | |
13479 | FLAM=SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13480 | WDTP(I)=FAC*PARU(146)**2*2D0*(3D0*RM1+0.25D0*FLAM**2)*FLAM | |
13481 | IF(KFLR.GT.0) WID2=WIDS(24,2)*WIDS(25,2) | |
13482 | IF(KFLR.LT.0) WID2=WIDS(24,3)*WIDS(25,2) | |
13483 | ENDIF | |
13484 | WDTP(0)=WDTP(0)+WDTP(I) | |
13485 | IF(MDME(IDC,1).GT.0) THEN | |
13486 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13487 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13488 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13489 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13490 | ENDIF | |
13491 | 290 CONTINUE | |
13492 | ||
13493 | ELSEIF(KFLA.EQ.37) THEN | |
13494 | C...H+/-: | |
13495 | FAC=(AEM/(8D0*XW))*(SH/PMAS(24,1)**2)*SHR | |
13496 | DO 300 I=1,MDCY(KC,3) | |
13497 | IDC=I+MDCY(KC,2)-1 | |
13498 | IF(MDME(IDC,1).LT.0) GOTO 300 | |
13499 | KFC1=PYCOMP(KFDP(IDC,1)) | |
13500 | KFC2=PYCOMP(KFDP(IDC,2)) | |
13501 | RM1=PMAS(KFC1,1)**2/SH | |
13502 | RM2=PMAS(KFC2,1)**2/SH | |
13503 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 300 | |
13504 | WID2=1D0 | |
13505 | IF(I.LE.4) THEN | |
13506 | C...H+/- -> q + qbar' | |
13507 | RM1R=RM1 | |
13508 | IF(MSTP(37).EQ.1.AND.MSTP(2).GE.1) RM1R=RM1* | |
13509 | & (LOG(MAX(4D0,PARP(37)**2*RM1*SH/PARU(117)**2))/ | |
13510 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0-2D0*MSTU(118))) | |
13511 | WDTP(I)=FAC*3D0*RADC*((RM1R*PARU(141)**2+RM2/PARU(141)**2)* | |
13512 | & (1D0-RM1R-RM2)-4D0*RM1R*RM2)* | |
13513 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13514 | IF(KFLR.GT.0) THEN | |
13515 | IF(I.EQ.3) WID2=WIDS(6,2) | |
13516 | IF(I.EQ.4) WID2=WIDS(7,3)*WIDS(8,2) | |
13517 | ELSE | |
13518 | IF(I.EQ.3) WID2=WIDS(6,3) | |
13519 | IF(I.EQ.4) WID2=WIDS(7,2)*WIDS(8,3) | |
13520 | ENDIF | |
13521 | ELSEIF(I.LE.8) THEN | |
13522 | C...H+/- -> l+/- + nu | |
13523 | WDTP(I)=FAC*((RM1*PARU(141)**2+RM2/PARU(141)**2)* | |
13524 | & (1D0-RM1-RM2)-4D0*RM1*RM2)*SQRT(MAX(0D0,(1D0-RM1-RM2)**2- | |
13525 | & 4D0*RM1*RM2)) | |
13526 | IF(KFLR.GT.0) THEN | |
13527 | IF(I.EQ.8) WID2=WIDS(17,3)*WIDS(18,2) | |
13528 | ELSE | |
13529 | IF(I.EQ.8) WID2=WIDS(17,2)*WIDS(18,3) | |
13530 | ENDIF | |
13531 | ELSEIF(I.EQ.9) THEN | |
13532 | C...H+/- -> W+/- + h0. | |
13533 | WDTP(I)=FAC*PARU(195)**2*0.5D0*SQRT(MAX(0D0, | |
13534 | & (1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13535 | IF(KFLR.GT.0) WID2=WIDS(24,2)*WIDS(25,2) | |
13536 | IF(KFLR.LT.0) WID2=WIDS(24,3)*WIDS(25,2) | |
13537 | ||
13538 | CMRENNA++ | |
13539 | ELSE | |
13540 | C...Add in SUSY decays (two-body) by rescaling by phase space factor. | |
13541 | RM10=RM1*SH/PMR**2 | |
13542 | RM20=RM2*SH/PMR**2 | |
13543 | WFAC0=1D0+RM10**2+RM20**2-2D0*(RM10+RM20+RM10*RM20) | |
13544 | WFAC=1D0+RM1**2+RM2**2-2D0*(RM1+RM2+RM1*RM2) | |
13545 | IF(WFAC.LE.0D0 .OR. WFAC0.LE.0D0) THEN | |
13546 | WFAC=0D0 | |
13547 | ELSE | |
13548 | WFAC=WFAC/WFAC0 | |
13549 | ENDIF | |
13550 | WDTP(I)=PMAS(KC,2)*BRAT(IDC)*(SHR/PMR)*SQRT(WFAC) | |
13551 | CMRENNA-- | |
13552 | KSGN1=2 | |
13553 | IF(KFLS*KFDP(IDC,1).LT.0.AND.KCHG(KFC1,3).EQ.1) KSGN1=3 | |
13554 | KSGN2=2 | |
13555 | IF(KFLS*KFDP(IDC,2).LT.0.AND.KCHG(KFC2,3).EQ.1) KSGN2=3 | |
13556 | WID2=WIDS(KFC1,KSGN1)*WIDS(KFC2,KSGN2) | |
13557 | ENDIF | |
13558 | WDTP(0)=WDTP(0)+WDTP(I) | |
13559 | IF(MDME(IDC,1).GT.0) THEN | |
13560 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13561 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13562 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13563 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13564 | ENDIF | |
13565 | 300 CONTINUE | |
13566 | ||
13567 | ELSEIF(KFLA.EQ.38) THEN | |
13568 | C...Techni-eta. | |
13569 | FAC=(SH/PARP(46)**2)*SHR | |
13570 | DO 310 I=1,MDCY(KC,3) | |
13571 | IDC=I+MDCY(KC,2)-1 | |
13572 | IF(MDME(IDC,1).LT.0) GOTO 310 | |
13573 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13574 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13575 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 310 | |
13576 | WID2=1D0 | |
13577 | IF(I.LE.2) THEN | |
13578 | WDTP(I)=FAC*RM1*SQRT(MAX(0D0,1D0-4D0*RM1))/(4D0*PARU(1)) | |
13579 | IF(I.EQ.2) WID2=WIDS(6,1) | |
13580 | ELSE | |
13581 | WDTP(I)=FAC*5D0*AS**2/(96D0*PARU(1)**3) | |
13582 | ENDIF | |
13583 | WDTP(0)=WDTP(0)+WDTP(I) | |
13584 | IF(MDME(IDC,1).GT.0) THEN | |
13585 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13586 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13587 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13588 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13589 | ENDIF | |
13590 | 310 CONTINUE | |
13591 | ||
13592 | ELSEIF(KFLA.EQ.39) THEN | |
13593 | C...LQ (leptoquark). | |
13594 | FAC=(AEM/4D0)*PARU(151)*SHR | |
13595 | DO 320 I=1,MDCY(KC,3) | |
13596 | IDC=I+MDCY(KC,2)-1 | |
13597 | IF(MDME(IDC,1).LT.0) GOTO 320 | |
13598 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13599 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13600 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 320 | |
13601 | WDTP(I)=FAC*SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13602 | WID2=1D0 | |
13603 | WDTP(0)=WDTP(0)+WDTP(I) | |
13604 | IF(MDME(IDC,1).GT.0) THEN | |
13605 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13606 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13607 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13608 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13609 | ENDIF | |
13610 | 320 CONTINUE | |
13611 | ||
13612 | ELSEIF(KFLA.EQ.40) THEN | |
13613 | C...R: | |
13614 | FAC=(AEM/(12D0*XW))*SHR | |
13615 | DO 330 I=1,MDCY(KC,3) | |
13616 | IDC=I+MDCY(KC,2)-1 | |
13617 | IF(MDME(IDC,1).LT.0) GOTO 330 | |
13618 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13619 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13620 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 330 | |
13621 | WID2=1D0 | |
13622 | IF(I.LE.6) THEN | |
13623 | C...R -> q + qbar' | |
13624 | FCOF=3D0*RADC | |
13625 | ELSEIF(I.LE.9) THEN | |
13626 | C...R -> l+ + l'- | |
13627 | FCOF=1D0 | |
13628 | ENDIF | |
13629 | WDTP(I)=FAC*FCOF*(2D0-RM1-RM2-(RM1-RM2)**2)* | |
13630 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13631 | IF(KFLR.GT.0) THEN | |
13632 | IF(I.EQ.4) WID2=WIDS(6,3) | |
13633 | IF(I.EQ.5) WID2=WIDS(7,3) | |
13634 | IF(I.EQ.6) WID2=WIDS(6,2)*WIDS(8,3) | |
13635 | IF(I.EQ.9) WID2=WIDS(17,3) | |
13636 | ELSE | |
13637 | IF(I.EQ.4) WID2=WIDS(6,2) | |
13638 | IF(I.EQ.5) WID2=WIDS(7,2) | |
13639 | IF(I.EQ.6) WID2=WIDS(6,3)*WIDS(8,2) | |
13640 | IF(I.EQ.9) WID2=WIDS(17,2) | |
13641 | ENDIF | |
13642 | WDTP(0)=WDTP(0)+WDTP(I) | |
13643 | IF(MDME(IDC,1).GT.0) THEN | |
13644 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13645 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13646 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13647 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13648 | ENDIF | |
13649 | 330 CONTINUE | |
13650 | ||
13651 | ELSEIF(KFLA.EQ.51.OR.KFLA.EQ.52) THEN | |
13652 | C...Techni-pi0 and techni-pi+-: | |
13653 | FAC=(3D0/(32D0*PARU(1)*PARP(142)**2))*SHR | |
13654 | DO 340 I=1,MDCY(KC,3) | |
13655 | IDC=I+MDCY(KC,2)-1 | |
13656 | IF(MDME(IDC,1).LT.0) GOTO 340 | |
13657 | PM1=PMAS(PYCOMP(KFDP(IDC,1)),1) | |
13658 | PM2=PMAS(PYCOMP(KFDP(IDC,2)),1) | |
13659 | RM1=PM1**2/SH | |
13660 | RM2=PM2**2/SH | |
13661 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 340 | |
13662 | WID2=1D0 | |
13663 | C...pi_tech -> f + f'. | |
13664 | FCOF=1D0 | |
13665 | IF(IABS(KFDP(IDC,1)).LT.10) FCOF=3D0*RADC | |
13666 | WDTP(I)=FAC*FCOF*(PM1+PM2)**2* | |
13667 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13668 | WDTP(0)=WDTP(0)+WDTP(I) | |
13669 | IF(MDME(IDC,1).GT.0) THEN | |
13670 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13671 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13672 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13673 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13674 | ENDIF | |
13675 | 340 CONTINUE | |
13676 | ||
13677 | ELSEIF(KFLA.EQ.53) THEN | |
13678 | C...Techni-pi'0 not yet implemented. | |
13679 | ||
13680 | ELSEIF(KFLA.EQ.54) THEN | |
13681 | C...Techni-rho0: | |
13682 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
13683 | FAC=(ALPRHT/12D0)*SHR | |
13684 | FACF=(1D0/6D0)*(AEM**2/ALPRHT)*(PMAS(KFLA,1)**4/SHR**3) | |
13685 | SQMZ=PMAS(23,1)**2 | |
13686 | GMMZ=PMAS(23,1)*PMAS(23,2) | |
13687 | XWRHT=(1D0-2D0*XW)/(4D0*XW*(1D0-XW)) | |
13688 | BWZR=XWRHT*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
13689 | BWZI=XWRHT*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
13690 | DO 350 I=1,MDCY(KC,3) | |
13691 | IDC=I+MDCY(KC,2)-1 | |
13692 | IF(MDME(IDC,1).LT.0) GOTO 350 | |
13693 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13694 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13695 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 350 | |
13696 | IF(I.EQ.1) THEN | |
13697 | C...rho_tech0 -> W+ + W-. | |
13698 | WDTP(I)=FAC*PARP(141)**4* | |
13699 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13700 | WID2=WIDS(24,1) | |
13701 | ELSEIF(I.EQ.2) THEN | |
13702 | C...rho_tech0 -> W+ + pi_tech-. | |
13703 | WDTP(I)=FAC*PARP(141)**2*(1D0-PARP(141)**2)* | |
13704 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13705 | WID2=WIDS(24,2)*WIDS(52,3) | |
13706 | ELSEIF(I.EQ.3) THEN | |
13707 | C...rho_tech0 -> pi_tech+ + W-. | |
13708 | WDTP(I)=FAC*PARP(141)**2*(1D0-PARP(141)**2)* | |
13709 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13710 | WID2=WIDS(52,2)*WIDS(24,3) | |
13711 | ELSEIF(I.EQ.4) THEN | |
13712 | C...rho_tech0 -> pi_tech+ + pi_tech-. | |
13713 | WDTP(I)=FAC*(1D0-PARP(141)**2)**2* | |
13714 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13715 | WID2=WIDS(52,1) | |
13716 | ELSE | |
13717 | C...rho_tech0 -> f + fbar. | |
13718 | WID2=1D0 | |
13719 | IF(I.LE.12) THEN | |
13720 | IA=I-4 | |
13721 | FCOF=3D0*RADC | |
13722 | IF(IA.GE.6.AND.IA.LE.8) WID2=WIDS(IA,1) | |
13723 | ELSE | |
13724 | IA=I-2 | |
13725 | FCOF=1D0 | |
13726 | IF(IA.GE.17) WID2=WIDS(IA,1) | |
13727 | ENDIF | |
13728 | EI=KCHG(IA,1)/3D0 | |
13729 | AI=SIGN(1D0,EI+0.1D0) | |
13730 | VI=AI-4D0*EI*XWV | |
13731 | VALI=0.5D0*(VI+AI) | |
13732 | VARI=0.5D0*(VI-AI) | |
13733 | WDTP(I)=FACF*FCOF*(1D0-RM1)*SQRT(MAX(0D0,1D0-4D0*RM1))* | |
13734 | & ((EI+VALI*BWZR)**2+(VALI*BWZI)**2+ | |
13735 | & (EI+VARI*BWZR)**2+(VARI*BWZI)**2) | |
13736 | ENDIF | |
13737 | WDTP(0)=WDTP(0)+WDTP(I) | |
13738 | IF(MDME(IDC,1).GT.0) THEN | |
13739 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13740 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13741 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13742 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13743 | ENDIF | |
13744 | 350 CONTINUE | |
13745 | ||
13746 | ELSEIF(KFLA.EQ.55) THEN | |
13747 | C...Techni-rho+/-: | |
13748 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
13749 | FAC=(ALPRHT/12D0)*SHR | |
13750 | SQMW=PMAS(24,1)**2 | |
13751 | GMMW=PMAS(24,1)*PMAS(24,2) | |
13752 | FACF=(1D0/6D0)*(AEM**2/ALPRHT)*(PMAS(KFLA,1)**4/SHR**3)* | |
13753 | & (0.25D0/XW**2)*SH**2/((SH-SQMW)**2+GMMW**2) | |
13754 | DO 360 I=1,MDCY(KC,3) | |
13755 | IDC=I+MDCY(KC,2)-1 | |
13756 | IF(MDME(IDC,1).LT.0) GOTO 360 | |
13757 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13758 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13759 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 360 | |
13760 | IF(I.EQ.1) THEN | |
13761 | C...rho_tech+ -> W+ + Z0. | |
13762 | WDTP(I)=FAC*PARP(141)**4* | |
13763 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13764 | IF(KFLR.GT.0) THEN | |
13765 | WID2=WIDS(24,2)*WIDS(23,2) | |
13766 | ELSE | |
13767 | WID2=WIDS(24,3)*WIDS(23,2) | |
13768 | ENDIF | |
13769 | ELSEIF(I.EQ.2) THEN | |
13770 | C...rho_tech+ -> W+ + pi_tech0. | |
13771 | WDTP(I)=FAC*PARP(141)**2*(1D0-PARP(141)**2)* | |
13772 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13773 | IF(KFLR.GT.0) THEN | |
13774 | WID2=WIDS(24,2)*WIDS(51,2) | |
13775 | ELSE | |
13776 | WID2=WIDS(24,3)*WIDS(51,2) | |
13777 | ENDIF | |
13778 | ELSEIF(I.EQ.3) THEN | |
13779 | C...rho_tech+ -> pi_tech+ + Z0. | |
13780 | WDTP(I)=FAC*PARP(141)**2*(1D0-PARP(141)**2)* | |
13781 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13782 | IF(KFLR.GT.0) THEN | |
13783 | WID2=WIDS(52,2)*WIDS(23,2) | |
13784 | ELSE | |
13785 | WID2=WIDS(52,3)*WIDS(23,2) | |
13786 | ENDIF | |
13787 | ELSEIF(I.EQ.4) THEN | |
13788 | C...rho_tech+ -> pi_tech+ + pi_tech0. | |
13789 | WDTP(I)=FAC*(1D0-PARP(141)**2)**2* | |
13790 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13791 | IF(KFLR.GT.0) THEN | |
13792 | WID2=WIDS(52,2)*WIDS(51,2) | |
13793 | ELSE | |
13794 | WID2=WIDS(52,3)*WIDS(51,2) | |
13795 | ENDIF | |
13796 | ELSE | |
13797 | C...rho_tech+ -> f + fbar'. | |
13798 | IA=I-4 | |
13799 | WID2=1D0 | |
13800 | IF(IA.LE.16) THEN | |
13801 | FCOF=3D0*RADC*VCKM((IA-1)/4+1,MOD(IA-1,4)+1) | |
13802 | IF(KFLR.GT.0) THEN | |
13803 | IF(MOD(IA,4).EQ.3) WID2=WIDS(6,2) | |
13804 | IF(MOD(IA,4).EQ.0) WID2=WIDS(8,2) | |
13805 | IF(IA.GE.13) WID2=WID2*WIDS(7,3) | |
13806 | ELSE | |
13807 | IF(MOD(IA,4).EQ.3) WID2=WIDS(6,3) | |
13808 | IF(MOD(IA,4).EQ.0) WID2=WIDS(8,3) | |
13809 | IF(IA.GE.13) WID2=WID2*WIDS(7,2) | |
13810 | ENDIF | |
13811 | ELSE | |
13812 | FCOF=1D0 | |
13813 | IF(KFLR.GT.0) THEN | |
13814 | IF(IA.EQ.20) WID2=WIDS(17,3)*WIDS(18,2) | |
13815 | ELSE | |
13816 | IF(IA.EQ.20) WID2=WIDS(17,2)*WIDS(18,3) | |
13817 | ENDIF | |
13818 | ENDIF | |
13819 | WDTP(I)=FACF*FCOF*0.5D0*(2D0-RM1-RM2-(RM1-RM2)**2)* | |
13820 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
13821 | ENDIF | |
13822 | WDTP(0)=WDTP(0)+WDTP(I) | |
13823 | IF(MDME(IDC,1).GT.0) THEN | |
13824 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13825 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13826 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13827 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13828 | ENDIF | |
13829 | 360 CONTINUE | |
13830 | ||
13831 | ELSEIF(KFLA.EQ.56) THEN | |
13832 | C...Techni-omega: | |
13833 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
13834 | FAC=(AEM/24D0)*(SHR**3/PARP(145)**2) | |
13835 | FACF=(1D0/6D0)*(AEM**2/ALPRHT)*(PMAS(KFLA,1)**4/SHR**3)* | |
13836 | & (2D0*PARP(143)-1D0)**2 | |
13837 | SQMZ=PMAS(23,1)**2 | |
13838 | GMMZ=PMAS(23,1)*PMAS(23,2) | |
13839 | BWZR=(0.5D0/(1D0-XW))*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
13840 | BWZI=(0.5D0/(1D0-XW))*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
13841 | DO 370 I=1,MDCY(KC,3) | |
13842 | IDC=I+MDCY(KC,2)-1 | |
13843 | IF(MDME(IDC,1).LT.0) GOTO 370 | |
13844 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13845 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13846 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 370 | |
13847 | IF(I.EQ.1) THEN | |
13848 | C...omega_tech0 -> gamma + pi_tech0. | |
13849 | WDTP(I)=FAC* | |
13850 | & SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2))**3 | |
13851 | WID2=WIDS(51,2) | |
13852 | ELSEIF(I.EQ.2) THEN | |
13853 | C...omega_tech0 -> Z0 + pi_tech0 not known. | |
13854 | WDTP(I)=0D0 | |
13855 | WID2=WIDS(23,2)*WIDS(51,2) | |
13856 | ELSE | |
13857 | C...omega_tech0 -> f + fbar. | |
13858 | WID2=1D0 | |
13859 | IF(I.LE.10) THEN | |
13860 | IA=I-2 | |
13861 | FCOF=3D0*RADC | |
13862 | IF(IA.GE.6.AND.IA.LE.8) WID2=WIDS(IA,1) | |
13863 | ELSE | |
13864 | IA=I | |
13865 | FCOF=1D0 | |
13866 | IF(IA.GE.17) WID2=WIDS(IA,1) | |
13867 | ENDIF | |
13868 | EI=KCHG(IA,1)/3D0 | |
13869 | AI=SIGN(1D0,EI+0.1D0) | |
13870 | VI=AI-4D0*EI*XWV | |
13871 | VALI=0.5D0*(VI+AI) | |
13872 | VARI=0.5D0*(VI-AI) | |
13873 | WDTP(I)=FACF*FCOF*(1D0-RM1)*SQRT(MAX(0D0,1D0-4D0*RM1))* | |
13874 | & ((EI-VALI*BWZR)**2+(VALI*BWZI)**2+ | |
13875 | & (EI-VARI*BWZR)**2+(VARI*BWZI)**2) | |
13876 | ENDIF | |
13877 | WDTP(0)=WDTP(0)+WDTP(I) | |
13878 | IF(MDME(IDC,1).GT.0) THEN | |
13879 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13880 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13881 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13882 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13883 | ENDIF | |
13884 | 370 CONTINUE | |
13885 | ||
13886 | ELSEIF(KFLA.EQ.KEXCIT+1) THEN | |
13887 | C...d* excited quark. | |
13888 | FAC=(SH/PARU(155)**2)*SHR | |
13889 | DO 380 I=1,MDCY(KC,3) | |
13890 | IDC=I+MDCY(KC,2)-1 | |
13891 | IF(MDME(IDC,1).LT.0) GOTO 380 | |
13892 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13893 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13894 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 380 | |
13895 | IF(I.EQ.1) THEN | |
13896 | C...d* -> g + d. | |
13897 | WDTP(I)=FAC*AS*PARU(159)**2/3D0 | |
13898 | WID2=1D0 | |
13899 | ELSEIF(I.EQ.2) THEN | |
13900 | C...d* -> gamma + d. | |
13901 | QF=-PARU(157)/2D0+PARU(158)/6D0 | |
13902 | WDTP(I)=FAC*AEM*QF**2/4D0 | |
13903 | WID2=1D0 | |
13904 | ELSEIF(I.EQ.3) THEN | |
13905 | C...d* -> Z0 + d. | |
13906 | QF=-PARU(157)*XW1/2D0-PARU(158)*XW/6D0 | |
13907 | WDTP(I)=FAC*AEM*QF**2/(8D0*XW*XW1)* | |
13908 | & (1D0-RM1)**2*(2D0+RM1) | |
13909 | WID2=WIDS(23,2) | |
13910 | ELSEIF(I.EQ.4) THEN | |
13911 | C...d* -> W- + u. | |
13912 | WDTP(I)=FAC*AEM*PARU(157)**2/(16D0*XW)* | |
13913 | & (1D0-RM1)**2*(2D0+RM1) | |
13914 | IF(KFLR.GT.0) WID2=WIDS(24,3) | |
13915 | IF(KFLR.LT.0) WID2=WIDS(24,2) | |
13916 | ENDIF | |
13917 | WDTP(0)=WDTP(0)+WDTP(I) | |
13918 | IF(MDME(IDC,1).GT.0) THEN | |
13919 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13920 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13921 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13922 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13923 | ENDIF | |
13924 | 380 CONTINUE | |
13925 | ||
13926 | ELSEIF(KFLA.EQ.KEXCIT+2) THEN | |
13927 | C...u* excited quark. | |
13928 | FAC=(SH/PARU(155)**2)*SHR | |
13929 | DO 390 I=1,MDCY(KC,3) | |
13930 | IDC=I+MDCY(KC,2)-1 | |
13931 | IF(MDME(IDC,1).LT.0) GOTO 390 | |
13932 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13933 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13934 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 390 | |
13935 | IF(I.EQ.1) THEN | |
13936 | C...u* -> g + u. | |
13937 | WDTP(I)=FAC*AS*PARU(159)**2/3D0 | |
13938 | WID2=1D0 | |
13939 | ELSEIF(I.EQ.2) THEN | |
13940 | C...u* -> gamma + u. | |
13941 | QF=PARU(157)/2D0+PARU(158)/6D0 | |
13942 | WDTP(I)=FAC*AEM*QF**2/4D0 | |
13943 | WID2=1D0 | |
13944 | ELSEIF(I.EQ.3) THEN | |
13945 | C...u* -> Z0 + u. | |
13946 | QF=PARU(157)*XW1/2D0-PARU(158)*XW/6D0 | |
13947 | WDTP(I)=FAC*AEM*QF**2/(8D0*XW*XW1)* | |
13948 | & (1D0-RM1)**2*(2D0+RM1) | |
13949 | WID2=WIDS(23,2) | |
13950 | ELSEIF(I.EQ.4) THEN | |
13951 | C...u* -> W+ + d. | |
13952 | WDTP(I)=FAC*AEM*PARU(157)**2/(16D0*XW)* | |
13953 | & (1D0-RM1)**2*(2D0+RM1) | |
13954 | IF(KFLR.GT.0) WID2=WIDS(24,2) | |
13955 | IF(KFLR.LT.0) WID2=WIDS(24,3) | |
13956 | ENDIF | |
13957 | WDTP(0)=WDTP(0)+WDTP(I) | |
13958 | IF(MDME(IDC,1).GT.0) THEN | |
13959 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13960 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13961 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13962 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13963 | ENDIF | |
13964 | 390 CONTINUE | |
13965 | ||
13966 | ELSEIF(KFLA.EQ.KEXCIT+11) THEN | |
13967 | C...e* excited lepton. | |
13968 | FAC=(SH/PARU(155)**2)*SHR | |
13969 | DO 400 I=1,MDCY(KC,3) | |
13970 | IDC=I+MDCY(KC,2)-1 | |
13971 | IF(MDME(IDC,1).LT.0) GOTO 400 | |
13972 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
13973 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
13974 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 400 | |
13975 | IF(I.EQ.1) THEN | |
13976 | C...e* -> gamma + e. | |
13977 | QF=-PARU(157)/2D0-PARU(158)/2D0 | |
13978 | WDTP(I)=FAC*AEM*QF**2/4D0 | |
13979 | WID2=1D0 | |
13980 | ELSEIF(I.EQ.2) THEN | |
13981 | C...e* -> Z0 + e. | |
13982 | QF=-PARU(157)*XW1/2D0+PARU(158)*XW/2D0 | |
13983 | WDTP(I)=FAC*AEM*QF**2/(8D0*XW*XW1)* | |
13984 | & (1D0-RM1)**2*(2D0+RM1) | |
13985 | WID2=WIDS(23,2) | |
13986 | ELSEIF(I.EQ.3) THEN | |
13987 | C...e* -> W- + nu. | |
13988 | WDTP(I)=FAC*AEM*PARU(157)**2/(16D0*XW)* | |
13989 | & (1D0-RM1)**2*(2D0+RM1) | |
13990 | IF(KFLR.GT.0) WID2=WIDS(24,3) | |
13991 | IF(KFLR.LT.0) WID2=WIDS(24,2) | |
13992 | ENDIF | |
13993 | WDTP(0)=WDTP(0)+WDTP(I) | |
13994 | IF(MDME(IDC,1).GT.0) THEN | |
13995 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
13996 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
13997 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
13998 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
13999 | ENDIF | |
14000 | 400 CONTINUE | |
14001 | ||
14002 | ELSEIF(KFLA.EQ.KEXCIT+12) THEN | |
14003 | C...nu*_e excited neutrino. | |
14004 | FAC=(SH/PARU(155)**2)*SHR | |
14005 | DO 410 I=1,MDCY(KC,3) | |
14006 | IDC=I+MDCY(KC,2)-1 | |
14007 | IF(MDME(IDC,1).LT.0) GOTO 410 | |
14008 | RM1=PMAS(PYCOMP(KFDP(IDC,1)),1)**2/SH | |
14009 | RM2=PMAS(PYCOMP(KFDP(IDC,2)),1)**2/SH | |
14010 | IF(SQRT(RM1)+SQRT(RM2).GT.1D0) GOTO 410 | |
14011 | IF(I.EQ.1) THEN | |
14012 | C...nu*_e -> Z0 + nu*_e. | |
14013 | QF=PARU(157)*XW1/2D0+PARU(158)*XW/2D0 | |
14014 | WDTP(I)=FAC*AEM*QF**2/(8D0*XW*XW1)* | |
14015 | & (1D0-RM1)**2*(2D0+RM1) | |
14016 | WID2=WIDS(23,2) | |
14017 | ELSEIF(I.EQ.2) THEN | |
14018 | C...nu*_e -> W+ + e. | |
14019 | WDTP(I)=FAC*AEM*PARU(157)**2/(16D0*XW)* | |
14020 | & (1D0-RM1)**2*(2D0+RM1) | |
14021 | IF(KFLR.GT.0) WID2=WIDS(24,2) | |
14022 | IF(KFLR.LT.0) WID2=WIDS(24,3) | |
14023 | ENDIF | |
14024 | WDTP(0)=WDTP(0)+WDTP(I) | |
14025 | IF(MDME(IDC,1).GT.0) THEN | |
14026 | WDTE(I,MDME(IDC,1))=WDTP(I)*WID2 | |
14027 | WDTE(0,MDME(IDC,1))=WDTE(0,MDME(IDC,1))+WDTE(I,MDME(IDC,1)) | |
14028 | WDTE(I,0)=WDTE(I,MDME(IDC,1)) | |
14029 | WDTE(0,0)=WDTE(0,0)+WDTE(I,0) | |
14030 | ENDIF | |
14031 | 410 CONTINUE | |
14032 | ||
14033 | ENDIF | |
14034 | MINT(61)=0 | |
14035 | MINT(62)=0 | |
14036 | MINT(63)=0 | |
14037 | ||
14038 | RETURN | |
14039 | END | |
14040 | ||
14041 | C*********************************************************************** | |
14042 | ||
14043 | C...PYOFSH | |
14044 | C...Calculates partial width and differential cross-section maxima | |
14045 | C...of channels/processes not allowed on mass-shell, and selects | |
14046 | C...masses in such channels/processes. | |
14047 | ||
14048 | SUBROUTINE PYOFSH(MOFSH,KFMO,KFD1,KFD2,PMMO,RET1,RET2) | |
14049 | ||
14050 | C...Double precision and integer declarations. | |
14051 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
14052 | INTEGER PYK,PYCHGE,PYCOMP | |
14053 | C...Commonblocks. | |
14054 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
14055 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
14056 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
14057 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
14058 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
14059 | COMMON/PYINT1/MINT(400),VINT(400) | |
14060 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
14061 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
14062 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/,/PYINT1/, | |
14063 | &/PYINT2/,/PYINT5/ | |
14064 | C...Local arrays. | |
14065 | DIMENSION KFD(2),MBW(2),PMD(2),PGD(2),PMG(2),PML(2),PMU(2), | |
14066 | &PMH(2),ATL(2),ATU(2),ATH(2),RMG(2),INX1(100),XPT1(100), | |
14067 | &FPT1(100),INX2(100),XPT2(100),FPT2(100),WDTP(0:200), | |
14068 | &WDTE(0:200,0:5) | |
14069 | ||
14070 | C...Find if particles equal, maximum mass, matrix elements, etc. | |
14071 | MINT(51)=0 | |
14072 | ISUB=MINT(1) | |
14073 | KFD(1)=IABS(KFD1) | |
14074 | KFD(2)=IABS(KFD2) | |
14075 | MEQL=0 | |
14076 | IF(KFD(1).EQ.KFD(2)) MEQL=1 | |
14077 | MLM=0 | |
14078 | IF(MOFSH.GE.2.AND.MEQL.EQ.1) MLM=INT(1.5D0+PYR(0)) | |
14079 | IF(MOFSH.LE.2.OR.MOFSH.EQ.5) THEN | |
14080 | NOFF=44 | |
14081 | PMMX=PMMO | |
14082 | ELSE | |
14083 | NOFF=40 | |
14084 | PMMX=VINT(1) | |
14085 | IF(CKIN(2).GT.CKIN(1)) PMMX=MIN(CKIN(2),VINT(1)) | |
14086 | ENDIF | |
14087 | MMED=0 | |
14088 | IF((KFMO.EQ.25.OR.KFMO.EQ.35.OR.KFMO.EQ.36).AND.MEQL.EQ.1.AND. | |
14089 | &(KFD(1).EQ.23.OR.KFD(1).EQ.24)) MMED=1 | |
14090 | IF((KFMO.EQ.32.OR.IABS(KFMO).EQ.34).AND.(KFD(1).EQ.23.OR. | |
14091 | &KFD(1).EQ.24).AND.(KFD(2).EQ.23.OR.KFD(2).EQ.24)) MMED=2 | |
14092 | IF((KFMO.EQ.32.OR.IABS(KFMO).EQ.34).AND.(KFD(2).EQ.25.OR. | |
14093 | &KFD(2).EQ.35.OR.KFD(2).EQ.36)) MMED=3 | |
14094 | LOOP=1 | |
14095 | ||
14096 | C...Find where Breit-Wigners are required, else select discrete masses. | |
14097 | 100 DO 110 I=1,2 | |
14098 | KFCA=PYCOMP(KFD(I)) | |
14099 | IF(KFCA.GT.0) THEN | |
14100 | PMD(I)=PMAS(KFCA,1) | |
14101 | PGD(I)=PMAS(KFCA,2) | |
14102 | ELSE | |
14103 | PMD(I)=0D0 | |
14104 | PGD(I)=0D0 | |
14105 | ENDIF | |
14106 | IF(MSTP(42).LE.0.OR.PGD(I).LT.PARP(41)) THEN | |
14107 | MBW(I)=0 | |
14108 | PMG(I)=PMD(I) | |
14109 | RMG(I)=(PMG(I)/PMMX)**2 | |
14110 | ELSE | |
14111 | MBW(I)=1 | |
14112 | ENDIF | |
14113 | 110 CONTINUE | |
14114 | ||
14115 | C...Find allowed mass range and Breit-Wigner parameters. | |
14116 | DO 120 I=1,2 | |
14117 | IF(MOFSH.EQ.1.AND.LOOP.EQ.1.AND.MBW(I).EQ.1) THEN | |
14118 | PML(I)=PARP(42) | |
14119 | PMU(I)=PMMX-PARP(42) | |
14120 | IF(MBW(3-I).EQ.0) PMU(I)=MIN(PMU(I),PMMX-PMD(3-I)) | |
14121 | IF(PMU(I).LT.PML(I)+PARJ(64)) MBW(I)=-1 | |
14122 | ELSEIF(MBW(I).EQ.1.AND.MOFSH.NE.5) THEN | |
14123 | ILM=I | |
14124 | IF(MLM.EQ.2) ILM=3-I | |
14125 | PML(I)=MAX(CKIN(NOFF+2*ILM-1),PARP(42)) | |
14126 | PMU(I)=PMMX-MAX(CKIN(NOFF+5-2*ILM),PARP(42)) | |
14127 | IF(CKIN(NOFF+2*ILM).GT.CKIN(NOFF+2*ILM-1)) PMU(I)=MIN(PMU(I), | |
14128 | & CKIN(NOFF+2*ILM)) | |
14129 | IF(MBW(3-I).EQ.0) PMU(I)=MIN(PMU(I),PMMX-PMD(3-I)) | |
14130 | IF(I.EQ.MLM) PMU(I)=MIN(PMU(I),0.5D0*PMMX) | |
14131 | IF(MEQL.EQ.0) PMH(I)=MIN(PMU(I),0.5D0*PMMX) | |
14132 | IF(PMU(I).LT.PML(I)+PARJ(64)) MBW(I)=-1 | |
14133 | IF(MBW(I).EQ.1) THEN | |
14134 | ATL(I)=ATAN((PML(I)**2-PMD(I)**2)/(PMD(I)*PGD(I))) | |
14135 | ATU(I)=ATAN((PMU(I)**2-PMD(I)**2)/(PMD(I)*PGD(I))) | |
14136 | IF(MEQL.EQ.0) ATH(I)=ATAN((PMH(I)**2-PMD(I)**2)/(PMD(I)* | |
14137 | & PGD(I))) | |
14138 | ENDIF | |
14139 | ELSEIF(MBW(I).EQ.1.AND.MOFSH.EQ.5) THEN | |
14140 | ILM=I | |
14141 | IF(MLM.EQ.2) ILM=3-I | |
14142 | PML(I)=MAX(CKIN(48+I),PARP(42)) | |
14143 | PMU(I)=PMMX-MAX(CKIN(51-I),PARP(42)) | |
14144 | IF(MBW(3-I).EQ.0) PMU(I)=MIN(PMU(I),PMMX-PMD(3-I)) | |
14145 | IF(I.EQ.MLM) PMU(I)=MIN(PMU(I),0.5D0*PMMX) | |
14146 | IF(MEQL.EQ.0) PMH(I)=MIN(PMU(I),0.5D0*PMMX) | |
14147 | IF(PMU(I).LT.PML(I)+PARJ(64)) MBW(I)=-1 | |
14148 | IF(MBW(I).EQ.1) THEN | |
14149 | ATL(I)=ATAN((PML(I)**2-PMD(I)**2)/(PMD(I)*PGD(I))) | |
14150 | ATU(I)=ATAN((PMU(I)**2-PMD(I)**2)/(PMD(I)*PGD(I))) | |
14151 | IF(MEQL.EQ.0) ATH(I)=ATAN((PMH(I)**2-PMD(I)**2)/(PMD(I)* | |
14152 | & PGD(I))) | |
14153 | ENDIF | |
14154 | ENDIF | |
14155 | 120 CONTINUE | |
14156 | IF(MBW(1).LT.0.OR.MBW(2).LT.0.OR.(MBW(1).EQ.0.AND.MBW(2).EQ.0)) | |
14157 | &THEN | |
14158 | CALL PYERRM(3,'(PYOFSH:) no allowed decay product masses') | |
14159 | MINT(51)=1 | |
14160 | RETURN | |
14161 | ENDIF | |
14162 | ||
14163 | C...Calculation of partial width of resonance. | |
14164 | IF(MOFSH.EQ.1) THEN | |
14165 | ||
14166 | C..If only one integration, pick that to be the inner. | |
14167 | IF(MBW(1).EQ.0) THEN | |
14168 | PM2=PMD(1) | |
14169 | PMD(1)=PMD(2) | |
14170 | PGD(1)=PGD(2) | |
14171 | PML(1)=PML(2) | |
14172 | PMU(1)=PMU(2) | |
14173 | ELSEIF(MBW(2).EQ.0) THEN | |
14174 | PM2=PMD(2) | |
14175 | ENDIF | |
14176 | ||
14177 | C...Start outer loop of integration. | |
14178 | IF(MBW(1).EQ.1.AND.MBW(2).EQ.1) THEN | |
14179 | ATL2=ATAN((PML(2)**2-PMD(2)**2)/(PMD(2)*PGD(2))) | |
14180 | ATU2=ATAN((PMU(2)**2-PMD(2)**2)/(PMD(2)*PGD(2))) | |
14181 | NPT2=1 | |
14182 | XPT2(1)=1D0 | |
14183 | INX2(1)=0 | |
14184 | FMAX2=0D0 | |
14185 | ENDIF | |
14186 | 130 IF(MBW(1).EQ.1.AND.MBW(2).EQ.1) THEN | |
14187 | PM2S=PMD(2)**2+PMD(2)*PGD(2)*TAN(ATL2+XPT2(NPT2)*(ATU2-ATL2)) | |
14188 | PM2=MIN(PMU(2),MAX(PML(2),SQRT(MAX(0D0,PM2S)))) | |
14189 | ENDIF | |
14190 | RM2=(PM2/PMMX)**2 | |
14191 | ||
14192 | C...Start inner loop of integration. | |
14193 | PML1=PML(1) | |
14194 | PMU1=MIN(PMU(1),PMMX-PM2) | |
14195 | IF(MEQL.EQ.1) PMU1=MIN(PMU1,PM2) | |
14196 | ATL1=ATAN((PML1**2-PMD(1)**2)/(PMD(1)*PGD(1))) | |
14197 | ATU1=ATAN((PMU1**2-PMD(1)**2)/(PMD(1)*PGD(1))) | |
14198 | IF(PML1+PARJ(64).GE.PMU1.OR.ATL1+1D-7.GE.ATU1) THEN | |
14199 | FUNC2=0D0 | |
14200 | GOTO 180 | |
14201 | ENDIF | |
14202 | NPT1=1 | |
14203 | XPT1(1)=1D0 | |
14204 | INX1(1)=0 | |
14205 | FMAX1=0D0 | |
14206 | 140 PM1S=PMD(1)**2+PMD(1)*PGD(1)*TAN(ATL1+XPT1(NPT1)*(ATU1-ATL1)) | |
14207 | PM1=MIN(PMU1,MAX(PML1,SQRT(MAX(0D0,PM1S)))) | |
14208 | RM1=(PM1/PMMX)**2 | |
14209 | ||
14210 | C...Evaluate function value - inner loop. | |
14211 | FUNC1=SQRT(MAX(0D0,(1D0-RM1-RM2)**2-4D0*RM1*RM2)) | |
14212 | IF(MMED.EQ.1) FUNC1=FUNC1*((1D0-RM1-RM2)**2+8D0*RM1*RM2) | |
14213 | IF(MMED.EQ.2) FUNC1=FUNC1**3*(1D0+10D0*RM1+10D0*RM2+RM1**2+ | |
14214 | & RM2**2+10D0*RM1*RM2) | |
14215 | IF(FUNC1.GT.FMAX1) FMAX1=FUNC1 | |
14216 | FPT1(NPT1)=FUNC1 | |
14217 | ||
14218 | C...Go to next position in inner loop. | |
14219 | IF(NPT1.EQ.1) THEN | |
14220 | NPT1=NPT1+1 | |
14221 | XPT1(NPT1)=0D0 | |
14222 | INX1(NPT1)=1 | |
14223 | GOTO 140 | |
14224 | ELSEIF(NPT1.LE.8) THEN | |
14225 | NPT1=NPT1+1 | |
14226 | IF(NPT1.LE.4.OR.NPT1.EQ.6) ISH1=1 | |
14227 | ISH1=ISH1+1 | |
14228 | XPT1(NPT1)=0.5D0*(XPT1(ISH1)+XPT1(INX1(ISH1))) | |
14229 | INX1(NPT1)=INX1(ISH1) | |
14230 | INX1(ISH1)=NPT1 | |
14231 | GOTO 140 | |
14232 | ELSEIF(NPT1.LT.100) THEN | |
14233 | ISN1=ISH1 | |
14234 | 150 ISH1=ISH1+1 | |
14235 | IF(ISH1.GT.NPT1) ISH1=2 | |
14236 | IF(ISH1.EQ.ISN1) GOTO 160 | |
14237 | DFPT1=ABS(FPT1(ISH1)-FPT1(INX1(ISH1))) | |
14238 | IF(DFPT1.LT.PARP(43)*FMAX1) GOTO 150 | |
14239 | NPT1=NPT1+1 | |
14240 | XPT1(NPT1)=0.5D0*(XPT1(ISH1)+XPT1(INX1(ISH1))) | |
14241 | INX1(NPT1)=INX1(ISH1) | |
14242 | INX1(ISH1)=NPT1 | |
14243 | GOTO 140 | |
14244 | ENDIF | |
14245 | ||
14246 | C...Calculate integral over inner loop. | |
14247 | 160 FSUM1=0D0 | |
14248 | DO 170 IPT1=2,NPT1 | |
14249 | FSUM1=FSUM1+0.5D0*(FPT1(IPT1)+FPT1(INX1(IPT1)))* | |
14250 | & (XPT1(INX1(IPT1))-XPT1(IPT1)) | |
14251 | 170 CONTINUE | |
14252 | FUNC2=FSUM1*(ATU1-ATL1)/PARU(1) | |
14253 | 180 IF(MBW(1).EQ.1.AND.MBW(2).EQ.1) THEN | |
14254 | IF(FUNC2.GT.FMAX2) FMAX2=FUNC2 | |
14255 | FPT2(NPT2)=FUNC2 | |
14256 | ||
14257 | C...Go to next position in outer loop. | |
14258 | IF(NPT2.EQ.1) THEN | |
14259 | NPT2=NPT2+1 | |
14260 | XPT2(NPT2)=0D0 | |
14261 | INX2(NPT2)=1 | |
14262 | GOTO 130 | |
14263 | ELSEIF(NPT2.LE.8) THEN | |
14264 | NPT2=NPT2+1 | |
14265 | IF(NPT2.LE.4.OR.NPT2.EQ.6) ISH2=1 | |
14266 | ISH2=ISH2+1 | |
14267 | XPT2(NPT2)=0.5D0*(XPT2(ISH2)+XPT2(INX2(ISH2))) | |
14268 | INX2(NPT2)=INX2(ISH2) | |
14269 | INX2(ISH2)=NPT2 | |
14270 | GOTO 130 | |
14271 | ELSEIF(NPT2.LT.100) THEN | |
14272 | ISN2=ISH2 | |
14273 | 190 ISH2=ISH2+1 | |
14274 | IF(ISH2.GT.NPT2) ISH2=2 | |
14275 | IF(ISH2.EQ.ISN2) GOTO 200 | |
14276 | DFPT2=ABS(FPT2(ISH2)-FPT2(INX2(ISH2))) | |
14277 | IF(DFPT2.LT.PARP(43)*FMAX2) GOTO 190 | |
14278 | NPT2=NPT2+1 | |
14279 | XPT2(NPT2)=0.5D0*(XPT2(ISH2)+XPT2(INX2(ISH2))) | |
14280 | INX2(NPT2)=INX2(ISH2) | |
14281 | INX2(ISH2)=NPT2 | |
14282 | GOTO 130 | |
14283 | ENDIF | |
14284 | ||
14285 | C...Calculate integral over outer loop. | |
14286 | 200 FSUM2=0D0 | |
14287 | DO 210 IPT2=2,NPT2 | |
14288 | FSUM2=FSUM2+0.5D0*(FPT2(IPT2)+FPT2(INX2(IPT2)))* | |
14289 | & (XPT2(INX2(IPT2))-XPT2(IPT2)) | |
14290 | 210 CONTINUE | |
14291 | FSUM2=FSUM2*(ATU2-ATL2)/PARU(1) | |
14292 | IF(MEQL.EQ.1) FSUM2=2D0*FSUM2 | |
14293 | ELSE | |
14294 | FSUM2=FUNC2 | |
14295 | ENDIF | |
14296 | ||
14297 | C...Save result; second integration for user-selected mass range. | |
14298 | IF(LOOP.EQ.1) WIDW=FSUM2 | |
14299 | WID2=FSUM2 | |
14300 | IF(LOOP.EQ.1.AND.(CKIN(46).GE.CKIN(45).OR.CKIN(48).GE.CKIN(47) | |
14301 | & .OR.MAX(CKIN(45),CKIN(47)).GE.1.01D0*PARP(42))) THEN | |
14302 | LOOP=2 | |
14303 | GOTO 100 | |
14304 | ENDIF | |
14305 | RET1=WIDW | |
14306 | RET2=WID2/WIDW | |
14307 | ||
14308 | C...Select two decay product masses of a resonance. | |
14309 | ELSEIF(MOFSH.EQ.2.OR.MOFSH.EQ.5) THEN | |
14310 | 220 DO 230 I=1,2 | |
14311 | IF(MBW(I).EQ.0) GOTO 230 | |
14312 | PMBW=PMD(I)**2+PMD(I)*PGD(I)*TAN(ATL(I)+PYR(0)* | |
14313 | & (ATU(I)-ATL(I))) | |
14314 | PMG(I)=MIN(PMU(I),MAX(PML(I),SQRT(MAX(0D0,PMBW)))) | |
14315 | RMG(I)=(PMG(I)/PMMX)**2 | |
14316 | 230 CONTINUE | |
14317 | IF((MEQL.EQ.1.AND.PMG(MAX(1,MLM)).GT.PMG(MIN(2,3-MLM))).OR. | |
14318 | & PMG(1)+PMG(2)+PARJ(64).GT.PMMX) GOTO 220 | |
14319 | ||
14320 | C...Weight with matrix element (if none known, use beta factor). | |
14321 | FLAM=SQRT(MAX(0D0,(1D0-RMG(1)-RMG(2))**2-4D0*RMG(1)*RMG(2))) | |
14322 | IF(MMED.EQ.1) THEN | |
14323 | WTBE=FLAM*((1D0-RMG(1)-RMG(2))**2+8D0*RMG(1)*RMG(2)) | |
14324 | ELSEIF(MMED.EQ.2) THEN | |
14325 | WTBE=FLAM**3*(1D0+10D0*RMG(1)+10D0*RMG(2)+RMG(1)**2+ | |
14326 | & RMG(2)**2+10D0*RMG(1)*RMG(2)) | |
14327 | ELSEIF(MMED.EQ.3) THEN | |
14328 | WTBE=FLAM*(RMG(1)+FLAM**2/12D0) | |
14329 | ELSE | |
14330 | WTBE=FLAM | |
14331 | ENDIF | |
14332 | IF(WTBE.LT.PYR(0)) GOTO 220 | |
14333 | RET1=PMG(1) | |
14334 | RET2=PMG(2) | |
14335 | ||
14336 | C...Find suitable set of masses for initialization of 2 -> 2 processes. | |
14337 | ELSEIF(MOFSH.EQ.3) THEN | |
14338 | IF(MBW(1).NE.0.AND.MBW(2).EQ.0) THEN | |
14339 | PMG(1)=MIN(PMD(1),0.5D0*(PML(1)+PMU(1))) | |
14340 | PMG(2)=PMD(2) | |
14341 | ELSEIF(MBW(2).NE.0.AND.MBW(1).EQ.0) THEN | |
14342 | PMG(1)=PMD(1) | |
14343 | PMG(2)=MIN(PMD(2),0.5D0*(PML(2)+PMU(2))) | |
14344 | ELSE | |
14345 | IDIV=-1 | |
14346 | 240 IDIV=IDIV+1 | |
14347 | PMG(1)=MIN(PMD(1),0.1D0*(IDIV*PML(1)+(10-IDIV)*PMU(1))) | |
14348 | PMG(2)=MIN(PMD(2),0.1D0*(IDIV*PML(2)+(10-IDIV)*PMU(2))) | |
14349 | IF(IDIV.LE.9.AND.PMG(1)+PMG(2).GT.0.9D0*PMMX) GOTO 240 | |
14350 | ENDIF | |
14351 | RET1=PMG(1) | |
14352 | RET2=PMG(2) | |
14353 | ||
14354 | C...Evaluate importance of excluded tails of Breit-Wigners. | |
14355 | IF(MEQL.EQ.0.AND.MBW(1).EQ.1.AND.MBW(2).EQ.1.AND.PMD(1)+PMD(2) | |
14356 | & .GT.PMMX.AND.PMH(1).GT.PML(1).AND.PMH(2).GT.PML(2)) MEQL=2 | |
14357 | IF(MEQL.LE.1) THEN | |
14358 | VINT(80)=1D0 | |
14359 | DO 250 I=1,2 | |
14360 | IF(MBW(I).NE.0) VINT(80)=VINT(80)*1.25D0*(ATU(I)-ATL(I))/ | |
14361 | & PARU(1) | |
14362 | 250 CONTINUE | |
14363 | ELSE | |
14364 | VINT(80)=(1.25D0/PARU(1))**2*MAX((ATU(1)-ATL(1))* | |
14365 | & (ATH(2)-ATL(2)),(ATH(1)-ATL(1))*(ATU(2)-ATL(2))) | |
14366 | ENDIF | |
14367 | IF((ISUB.EQ.15.OR.ISUB.EQ.19.OR.ISUB.EQ.30.OR.ISUB.EQ.35).AND. | |
14368 | & MSTP(43).NE.2) VINT(80)=2D0*VINT(80) | |
14369 | IF(ISUB.EQ.22.AND.MSTP(43).NE.2) VINT(80)=4D0*VINT(80) | |
14370 | IF(MEQL.GE.1) VINT(80)=2D0*VINT(80) | |
14371 | ||
14372 | C...Pick one particle to be the lighter (if improves efficiency). | |
14373 | ELSEIF(MOFSH.EQ.4) THEN | |
14374 | IF(MEQL.EQ.0.AND.MBW(1).EQ.1.AND.MBW(2).EQ.1.AND.PMD(1)+PMD(2) | |
14375 | & .GT.PMMX.AND.PMH(1).GT.PML(1).AND.PMH(2).GT.PML(2)) MEQL=2 | |
14376 | 260 IF(MEQL.EQ.2) MLM=INT(1.5D0+PYR(0)) | |
14377 | ||
14378 | C...Select two masses according to Breit-Wigner + flat in s + 1/s. | |
14379 | DO 270 I=1,2 | |
14380 | IF(MBW(I).EQ.0) GOTO 270 | |
14381 | PMV=PMU(I) | |
14382 | IF(MEQL.EQ.2.AND.I.EQ.MLM) PMV=PMH(I) | |
14383 | ATV=ATU(I) | |
14384 | IF(MEQL.EQ.2.AND.I.EQ.MLM) ATV=ATH(I) | |
14385 | RBR=PYR(0) | |
14386 | IF((ISUB.EQ.15.OR.ISUB.EQ.19.OR.ISUB.EQ.22.OR.ISUB.EQ.30.OR. | |
14387 | & ISUB.EQ.35).AND.MSTP(43).NE.2) RBR=2D0*RBR | |
14388 | IF(RBR.LT.0.8D0) THEN | |
14389 | PMSR=PMD(I)**2+PMD(I)*PGD(I)*TAN(ATL(I)+PYR(0)*(ATV-ATL(I))) | |
14390 | PMG(I)=MIN(PMV,MAX(PML(I),SQRT(MAX(0D0,PMSR)))) | |
14391 | ELSEIF(RBR.LT.0.9D0) THEN | |
14392 | PMG(I)=SQRT(MAX(0D0,PML(I)**2+PYR(0)*(PMV**2-PML(I)**2))) | |
14393 | ELSEIF(RBR.LT.1.5D0) THEN | |
14394 | PMG(I)=PML(I)*(PMV/PML(I))**PYR(0) | |
14395 | ELSE | |
14396 | PMG(I)=SQRT(MAX(0D0,PML(I)**2*PMV**2/(PML(I)**2+PYR(0)* | |
14397 | & (PMV**2-PML(I)**2)))) | |
14398 | ENDIF | |
14399 | 270 CONTINUE | |
14400 | IF((MEQL.GE.1.AND.PMG(MAX(1,MLM)).GT.PMG(MIN(2,3-MLM))).OR. | |
14401 | & PMG(1)+PMG(2)+PARJ(64).GT.PMMX) THEN | |
14402 | IF(MINT(48).EQ.1) THEN | |
14403 | NGEN(0,1)=NGEN(0,1)+1 | |
14404 | NGEN(MINT(1),1)=NGEN(MINT(1),1)+1 | |
14405 | GOTO 260 | |
14406 | ELSE | |
14407 | MINT(51)=1 | |
14408 | RETURN | |
14409 | ENDIF | |
14410 | ENDIF | |
14411 | RET1=PMG(1) | |
14412 | RET2=PMG(2) | |
14413 | ||
14414 | C...Give weight for selected mass distribution. | |
14415 | VINT(80)=1D0 | |
14416 | DO 280 I=1,2 | |
14417 | IF(MBW(I).EQ.0) GOTO 280 | |
14418 | PMV=PMU(I) | |
14419 | IF(MEQL.EQ.2.AND.I.EQ.MLM) PMV=PMH(I) | |
14420 | ATV=ATU(I) | |
14421 | IF(MEQL.EQ.2.AND.I.EQ.MLM) ATV=ATH(I) | |
14422 | F0=PMD(I)*PGD(I)/((PMG(I)**2-PMD(I)**2)**2+ | |
14423 | & (PMD(I)*PGD(I))**2)/PARU(1) | |
14424 | F1=1D0 | |
14425 | F2=1D0/PMG(I)**2 | |
14426 | F3=1D0/PMG(I)**4 | |
14427 | FI0=(ATV-ATL(I))/PARU(1) | |
14428 | FI1=PMV**2-PML(I)**2 | |
14429 | FI2=2D0*LOG(PMV/PML(I)) | |
14430 | FI3=1D0/PML(I)**2-1D0/PMV**2 | |
14431 | IF((ISUB.EQ.15.OR.ISUB.EQ.19.OR.ISUB.EQ.22.OR.ISUB.EQ.30.OR. | |
14432 | & ISUB.EQ.35).AND.MSTP(43).NE.2) THEN | |
14433 | VINT(80)=VINT(80)*20D0/(8D0+(FI0/F0)*(F1/FI1+6D0*F2/FI2+ | |
14434 | & 5D0*F3/FI3)) | |
14435 | ELSE | |
14436 | VINT(80)=VINT(80)*10D0/(8D0+(FI0/F0)*(F1/FI1+F2/FI2)) | |
14437 | ENDIF | |
14438 | VINT(80)=VINT(80)*FI0 | |
14439 | 280 CONTINUE | |
14440 | IF(MEQL.GE.1) VINT(80)=2D0*VINT(80) | |
14441 | ENDIF | |
14442 | ||
14443 | RETURN | |
14444 | END | |
14445 | ||
14446 | C*********************************************************************** | |
14447 | ||
14448 | C...PYRECO | |
14449 | C...Handles the possibility of colour reconnection in W+W- events, | |
14450 | C...Based on the main scenarios of the Sjostrand and Khoze study: | |
14451 | C...I, II, II', intermediate and instantaneous; plus one model | |
14452 | C...along the lines of the Gustafson and Hakkinen: GH. | |
14453 | ||
14454 | SUBROUTINE PYRECO(IW1,IW2,NSD1,NAFT1) | |
14455 | ||
14456 | C...Double precision and integer declarations. | |
14457 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
14458 | INTEGER PYK,PYCHGE,PYCOMP | |
14459 | C...Parameter value; number of points in MC integration. | |
14460 | PARAMETER (NPT=100) | |
14461 | C...Commonblocks. | |
14462 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
14463 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
14464 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
14465 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
14466 | COMMON/PYINT1/MINT(400),VINT(400) | |
14467 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/ | |
14468 | C...Local arrays. | |
14469 | DIMENSION NBEG(2),NEND(2),INP(50),INM(50),BEWW(3),XP(3),XM(3), | |
14470 | &V1(3),V2(3),BETP(50,4),DIRP(50,3),BETM(50,4),DIRM(50,3), | |
14471 | &XD(4),XB(4),IAP(NPT),IAM(NPT),WTA(NPT),V1P(3),V2P(3),V1M(3), | |
14472 | &V2M(3),Q(4,3),XPP(3),XMM(3),IPC(20),IMC(20),TC(0:20),TPC(20), | |
14473 | &TMC(20),IJOIN(100) | |
14474 | ||
14475 | C...Functions to give four-product and to do determinants. | |
14476 | FOUR(I,J)=P(I,4)*P(J,4)-P(I,1)*P(J,1)-P(I,2)*P(J,2)-P(I,3)*P(J,3) | |
14477 | DETER(I,J,L)=Q(I,1)*Q(J,2)*Q(L,3)-Q(I,1)*Q(L,2)*Q(J,3)+ | |
14478 | &Q(J,1)*Q(L,2)*Q(I,3)-Q(J,1)*Q(I,2)*Q(L,3)+ | |
14479 | &Q(L,1)*Q(I,2)*Q(J,3)-Q(L,1)*Q(J,2)*Q(I,3) | |
14480 | ||
14481 | C...Only allow fraction of recoupling for GH, intermediate and | |
14482 | C...instantaneous. | |
14483 | IF(MSTP(115).EQ.5.OR.MSTP(115).EQ.11.OR.MSTP(115).EQ.12) THEN | |
14484 | IF(PYR(0).GT.PARP(120)) RETURN | |
14485 | ENDIF | |
14486 | ||
14487 | C...Common part for scenarios I, II, II', and GH. | |
14488 | IF(MSTP(115).EQ.1.OR.MSTP(115).EQ.2.OR.MSTP(115).EQ.3.OR. | |
14489 | &MSTP(115).EQ.5) THEN | |
14490 | ||
14491 | C...Read out frequently-used parameters. | |
14492 | PI=PARU(1) | |
14493 | HBAR=PARU(3) | |
14494 | PMW=PMAS(24,1) | |
14495 | PGW=PMAS(24,2) | |
14496 | TFRAG=PARP(115) | |
14497 | RHAD=PARP(116) | |
14498 | FACT=PARP(117) | |
14499 | BLOWR=PARP(118) | |
14500 | BLOWT=PARP(119) | |
14501 | ||
14502 | C...Find range of decay products of the W's. | |
14503 | C...Background: the W's are stored in IW1 and IW2. | |
14504 | C...Their direct decay products in NSD1+1 through NSD1+4. | |
14505 | C...Products after shower (if any) in NSD1+5 through NAFT1 | |
14506 | C...for first W and in NAFT1+1 through N for the second. | |
14507 | IF(K(IW1,2).GT.0) THEN | |
14508 | JT=1 | |
14509 | ELSE | |
14510 | JT=2 | |
14511 | ENDIF | |
14512 | JR=3-JT | |
14513 | IF(NAFT1.GT.NSD1+4) THEN | |
14514 | NBEG(JT)=NSD1+5 | |
14515 | NEND(JT)=NAFT1 | |
14516 | ELSE | |
14517 | NBEG(JT)=NSD1+1 | |
14518 | NEND(JT)=NSD1+2 | |
14519 | ENDIF | |
14520 | IF(N.GT.NAFT1) THEN | |
14521 | NBEG(JR)=NAFT1+1 | |
14522 | NEND(JR)=N | |
14523 | ELSE | |
14524 | NBEG(JR)=NSD1+3 | |
14525 | NEND(JR)=NSD1+4 | |
14526 | ENDIF | |
14527 | ||
14528 | C...Rearrange parton shower products along strings. | |
14529 | NOLD=N | |
14530 | CALL PYPREP(NSD1+1) | |
14531 | ||
14532 | C...Find partons pointing back to W+ and W-; store them with quark | |
14533 | C...end of string first. | |
14534 | NNP=0 | |
14535 | NNM=0 | |
14536 | ISGP=0 | |
14537 | ISGM=0 | |
14538 | DO 120 I=NOLD+1,N | |
14539 | IF(K(I,1).NE.1.AND.K(I,1).NE.2) GOTO 120 | |
14540 | IF(IABS(K(I,2)).GE.22) GOTO 120 | |
14541 | IF(K(I,3).GE.NBEG(1).AND.K(I,3).LE.NEND(1)) THEN | |
14542 | IF(ISGP.EQ.0) ISGP=ISIGN(1,K(I,2)) | |
14543 | NNP=NNP+1 | |
14544 | IF(ISGP.EQ.1) THEN | |
14545 | INP(NNP)=I | |
14546 | ELSE | |
14547 | DO 100 I1=NNP,2,-1 | |
14548 | INP(I1)=INP(I1-1) | |
14549 | 100 CONTINUE | |
14550 | INP(1)=I | |
14551 | ENDIF | |
14552 | IF(K(I,1).EQ.1) ISGP=0 | |
14553 | ELSEIF(K(I,3).GE.NBEG(2).AND.K(I,3).LE.NEND(2)) THEN | |
14554 | IF(ISGM.EQ.0) ISGM=ISIGN(1,K(I,2)) | |
14555 | NNM=NNM+1 | |
14556 | IF(ISGM.EQ.1) THEN | |
14557 | INM(NNM)=I | |
14558 | ELSE | |
14559 | DO 110 I1=NNM,2,-1 | |
14560 | INM(I1)=INM(I1-1) | |
14561 | 110 CONTINUE | |
14562 | INM(1)=I | |
14563 | ENDIF | |
14564 | IF(K(I,1).EQ.1) ISGM=0 | |
14565 | ENDIF | |
14566 | 120 CONTINUE | |
14567 | ||
14568 | C...Boost to W+W- rest frame (not strictly needed). | |
14569 | DO 130 J=1,3 | |
14570 | BEWW(J)=(P(IW1,J)+P(IW2,J))/(P(IW1,4)+P(IW2,4)) | |
14571 | 130 CONTINUE | |
14572 | CALL PYROBO(IW1,IW1,0D0,0D0,-BEWW(1),-BEWW(2),-BEWW(3)) | |
14573 | CALL PYROBO(IW2,IW2,0D0,0D0,-BEWW(1),-BEWW(2),-BEWW(3)) | |
14574 | CALL PYROBO(NOLD+1,N,0D0,0D0,-BEWW(1),-BEWW(2),-BEWW(3)) | |
14575 | ||
14576 | C...Select decay vertices of W+ and W-. | |
14577 | TP=HBAR*(-LOG(PYR(0)))*P(IW1,4)/ | |
14578 | & SQRT((P(IW1,5)**2-PMW**2)**2+(P(IW1,5)**2*PGW/PMW)**2) | |
14579 | TM=HBAR*(-LOG(PYR(0)))*P(IW2,4)/ | |
14580 | & SQRT((P(IW2,5)**2-PMW**2)**2+(P(IW2,5)**2*PGW/PMW)**2) | |
14581 | GTMAX=MAX(TP,TM) | |
14582 | DO 140 J=1,3 | |
14583 | XP(J)=TP*P(IW1,J)/P(IW1,4) | |
14584 | XM(J)=TM*P(IW2,J)/P(IW2,4) | |
14585 | 140 CONTINUE | |
14586 | ||
14587 | C...Begin scenario I specifics. | |
14588 | IF(MSTP(115).EQ.1) THEN | |
14589 | ||
14590 | C...Reconstruct velocity and direction of W+ string pieces. | |
14591 | DO 170 IIP=1,NNP-1 | |
14592 | IF(K(INP(IIP),2).LT.0) GOTO 170 | |
14593 | I1=INP(IIP) | |
14594 | I2=INP(IIP+1) | |
14595 | P1A=SQRT(P(I1,1)**2+P(I1,2)**2+P(I1,3)**2) | |
14596 | P2A=SQRT(P(I2,1)**2+P(I2,2)**2+P(I2,3)**2) | |
14597 | DO 150 J=1,3 | |
14598 | V1(J)=P(I1,J)/P1A | |
14599 | V2(J)=P(I2,J)/P2A | |
14600 | BETP(IIP,J)=0.5D0*(V1(J)+V2(J)) | |
14601 | DIRP(IIP,J)=V1(J)-V2(J) | |
14602 | 150 CONTINUE | |
14603 | BETP(IIP,4)=1D0/SQRT(1D0-BETP(IIP,1)**2-BETP(IIP,2)**2- | |
14604 | & BETP(IIP,3)**2) | |
14605 | DIRL=SQRT(DIRP(IIP,1)**2+DIRP(IIP,2)**2+DIRP(IIP,3)**2) | |
14606 | DO 160 J=1,3 | |
14607 | DIRP(IIP,J)=DIRP(IIP,J)/DIRL | |
14608 | 160 CONTINUE | |
14609 | 170 CONTINUE | |
14610 | ||
14611 | C...Reconstruct velocity and direction of W- string pieces. | |
14612 | DO 200 IIM=1,NNM-1 | |
14613 | IF(K(INM(IIM),2).LT.0) GOTO 200 | |
14614 | I1=INM(IIM) | |
14615 | I2=INM(IIM+1) | |
14616 | P1A=SQRT(P(I1,1)**2+P(I1,2)**2+P(I1,3)**2) | |
14617 | P2A=SQRT(P(I2,1)**2+P(I2,2)**2+P(I2,3)**2) | |
14618 | DO 180 J=1,3 | |
14619 | V1(J)=P(I1,J)/P1A | |
14620 | V2(J)=P(I2,J)/P2A | |
14621 | BETM(IIM,J)=0.5D0*(V1(J)+V2(J)) | |
14622 | DIRM(IIM,J)=V1(J)-V2(J) | |
14623 | 180 CONTINUE | |
14624 | BETM(IIM,4)=1D0/SQRT(1D0-BETM(IIM,1)**2-BETM(IIM,2)**2- | |
14625 | & BETM(IIM,3)**2) | |
14626 | DIRL=SQRT(DIRM(IIM,1)**2+DIRM(IIM,2)**2+DIRM(IIM,3)**2) | |
14627 | DO 190 J=1,3 | |
14628 | DIRM(IIM,J)=DIRM(IIM,J)/DIRL | |
14629 | 190 CONTINUE | |
14630 | 200 CONTINUE | |
14631 | ||
14632 | C...Loop over number of space-time points. | |
14633 | NACC=0 | |
14634 | SUM=0D0 | |
14635 | DO 250 IPT=1,NPT | |
14636 | ||
14637 | C...Pick x,y,z,t Gaussian (width RHAD and TFRAG, respectively). | |
14638 | R=SQRT(-LOG(PYR(0))) | |
14639 | PHI=2D0*PI*PYR(0) | |
14640 | X=BLOWR*RHAD*R*COS(PHI) | |
14641 | Y=BLOWR*RHAD*R*SIN(PHI) | |
14642 | R=SQRT(-LOG(PYR(0))) | |
14643 | PHI=2D0*PI*PYR(0) | |
14644 | Z=BLOWR*RHAD*R*COS(PHI) | |
14645 | T=GTMAX+BLOWT*SQRT(0.5D0)*TFRAG*R*ABS(SIN(PHI)) | |
14646 | ||
14647 | C...Weight for sample distribution. | |
14648 | WTSMP=EXP(-(X**2+Y**2+Z**2)/(BLOWR*RHAD)**2)* | |
14649 | & EXP(-2D0*(T-GTMAX)**2/(BLOWT*TFRAG)**2) | |
14650 | ||
14651 | C...Loop over W+ string pieces and find one with largest weight. | |
14652 | IMAXP=0 | |
14653 | WTMAXP=1D-10 | |
14654 | XD(1)=X-XP(1) | |
14655 | XD(2)=Y-XP(2) | |
14656 | XD(3)=Z-XP(3) | |
14657 | XD(4)=T-TP | |
14658 | DO 220 IIP=1,NNP-1 | |
14659 | IF(K(INP(IIP),2).LT.0) GOTO 220 | |
14660 | BED=BETP(IIP,1)*XD(1)+BETP(IIP,2)*XD(2)+BETP(IIP,3)*XD(3) | |
14661 | BEDG=BETP(IIP,4)*(BETP(IIP,4)*BED/(1D0+BETP(IIP,4))-XD(4)) | |
14662 | DO 210 J=1,3 | |
14663 | XB(J)=XD(J)+BEDG*BETP(IIP,J) | |
14664 | 210 CONTINUE | |
14665 | XB(4)=BETP(IIP,4)*(XD(4)-BED) | |
14666 | SR2=XB(1)**2+XB(2)**2+XB(3)**2 | |
14667 | SZ2=(DIRP(IIP,1)*XB(1)+DIRP(IIP,2)*XB(2)+ | |
14668 | & DIRP(IIP,3)*XB(3))**2 | |
14669 | WTP=EXP(-(SR2-SZ2)/(2D0*RHAD**2))*EXP(-(XB(4)**2-SZ2)/ | |
14670 | & TFRAG**2) | |
14671 | IF(XB(4)-SQRT(SR2).LT.0D0) WTP=0D0 | |
14672 | IF(WTP.GT.WTMAXP) THEN | |
14673 | IMAXP=IIP | |
14674 | WTMAXP=WTP | |
14675 | ENDIF | |
14676 | 220 CONTINUE | |
14677 | ||
14678 | C...Loop over W- string pieces and find one with largest weight. | |
14679 | IMAXM=0 | |
14680 | WTMAXM=1D-10 | |
14681 | XD(1)=X-XM(1) | |
14682 | XD(2)=Y-XM(2) | |
14683 | XD(3)=Z-XM(3) | |
14684 | XD(4)=T-TM | |
14685 | DO 240 IIM=1,NNM-1 | |
14686 | IF(K(INM(IIM),2).LT.0) GOTO 240 | |
14687 | BED=BETM(IIM,1)*XD(1)+BETM(IIM,2)*XD(2)+BETM(IIM,3)*XD(3) | |
14688 | BEDG=BETM(IIM,4)*(BETM(IIM,4)*BED/(1D0+BETM(IIM,4))-XD(4)) | |
14689 | DO 230 J=1,3 | |
14690 | XB(J)=XD(J)+BEDG*BETM(IIM,J) | |
14691 | 230 CONTINUE | |
14692 | XB(4)=BETM(IIM,4)*(XD(4)-BED) | |
14693 | SR2=XB(1)**2+XB(2)**2+XB(3)**2 | |
14694 | SZ2=(DIRM(IIM,1)*XB(1)+DIRM(IIM,2)*XB(2)+ | |
14695 | & DIRM(IIM,3)*XB(3))**2 | |
14696 | WTM=EXP(-(SR2-SZ2)/(2D0*RHAD**2))*EXP(-(XB(4)**2-SZ2)/ | |
14697 | & TFRAG**2) | |
14698 | IF(XB(4)-SQRT(SR2).LT.0D0) WTM=0D0 | |
14699 | IF(WTM.GT.WTMAXM) THEN | |
14700 | IMAXM=IIM | |
14701 | WTMAXM=WTM | |
14702 | ENDIF | |
14703 | 240 CONTINUE | |
14704 | ||
14705 | C...Result of integration. | |
14706 | WT=0D0 | |
14707 | IF(IMAXP.NE.0.AND.IMAXM.NE.0) THEN | |
14708 | WT=WTMAXP*WTMAXM/WTSMP | |
14709 | SUM=SUM+WT | |
14710 | NACC=NACC+1 | |
14711 | IAP(NACC)=IMAXP | |
14712 | IAM(NACC)=IMAXM | |
14713 | WTA(NACC)=WT | |
14714 | ENDIF | |
14715 | 250 CONTINUE | |
14716 | RES=BLOWR**3*BLOWT*SUM/NPT | |
14717 | ||
14718 | C...Decide whether to reconnect and, if so, where. | |
14719 | IACC=0 | |
14720 | PREC=1D0-EXP(-FACT*RES) | |
14721 | IF(PREC.GT.PYR(0)) THEN | |
14722 | RSUM=PYR(0)*SUM | |
14723 | DO 260 IA=1,NACC | |
14724 | IACC=IA | |
14725 | RSUM=RSUM-WTA(IA) | |
14726 | IF(RSUM.LE.0D0) GOTO 270 | |
14727 | 260 CONTINUE | |
14728 | 270 IIP=IAP(IACC) | |
14729 | IIM=IAM(IACC) | |
14730 | ENDIF | |
14731 | ||
14732 | C...Begin scenario II and II' specifics. | |
14733 | ELSEIF(MSTP(115).EQ.2.OR.MSTP(115).EQ.3) THEN | |
14734 | ||
14735 | C...Loop through all string pieces, one from W+ and one from W-. | |
14736 | NCROSS=0 | |
14737 | TC(0)=0D0 | |
14738 | DO 340 IIP=1,NNP-1 | |
14739 | IF(K(INP(IIP),2).LT.0) GOTO 340 | |
14740 | I1P=INP(IIP) | |
14741 | I2P=INP(IIP+1) | |
14742 | DO 330 IIM=1,NNM-1 | |
14743 | IF(K(INM(IIM),2).LT.0) GOTO 330 | |
14744 | I1M=INM(IIM) | |
14745 | I2M=INM(IIM+1) | |
14746 | ||
14747 | C...Find endpoint velocity vectors. | |
14748 | DO 280 J=1,3 | |
14749 | V1P(J)=P(I1P,J)/P(I1P,4) | |
14750 | V2P(J)=P(I2P,J)/P(I2P,4) | |
14751 | V1M(J)=P(I1M,J)/P(I1M,4) | |
14752 | V2M(J)=P(I2M,J)/P(I2M,4) | |
14753 | 280 CONTINUE | |
14754 | ||
14755 | C...Define q matrix and find t. | |
14756 | DO 290 J=1,3 | |
14757 | Q(1,J)=V2P(J)-V1P(J) | |
14758 | Q(2,J)=-(V2M(J)-V1M(J)) | |
14759 | Q(3,J)=XP(J)-XM(J)-TP*V1P(J)+TM*V1M(J) | |
14760 | Q(4,J)=V1P(J)-V1M(J) | |
14761 | 290 CONTINUE | |
14762 | T=-DETER(1,2,3)/DETER(1,2,4) | |
14763 | ||
14764 | C...Find alpha and beta; i.e. coordinates of crossing point. | |
14765 | S11=Q(1,1)*(T-TP) | |
14766 | S12=Q(2,1)*(T-TM) | |
14767 | S13=Q(3,1)+Q(4,1)*T | |
14768 | S21=Q(1,2)*(T-TP) | |
14769 | S22=Q(2,2)*(T-TM) | |
14770 | S23=Q(3,2)+Q(4,2)*T | |
14771 | DEN=S11*S22-S12*S21 | |
14772 | ALP=(S12*S23-S22*S13)/DEN | |
14773 | BET=(S21*S13-S11*S23)/DEN | |
14774 | ||
14775 | C...Check if solution acceptable. | |
14776 | IANSW=1 | |
14777 | IF(T.LT.GTMAX) IANSW=0 | |
14778 | IF(ALP.LT.0D0.OR.ALP.GT.1D0) IANSW=0 | |
14779 | IF(BET.LT.0D0.OR.BET.GT.1D0) IANSW=0 | |
14780 | ||
14781 | C...Find point of crossing and check that not inconsistent. | |
14782 | DO 300 J=1,3 | |
14783 | XPP(J)=XP(J)+(V1P(J)+ALP*(V2P(J)-V1P(J)))*(T-TP) | |
14784 | XMM(J)=XM(J)+(V1M(J)+BET*(V2M(J)-V1M(J)))*(T-TM) | |
14785 | 300 CONTINUE | |
14786 | D2PM=(XPP(1)-XMM(1))**2+(XPP(2)-XMM(2))**2+ | |
14787 | & (XPP(3)-XMM(3))**2 | |
14788 | D2P=XPP(1)**2+XPP(2)**2+XPP(3)**2 | |
14789 | D2M=XMM(1)**2+XMM(2)**2+XMM(3)**2 | |
14790 | IF(D2PM.GT.1D-4*(D2P+D2M)) IANSW=-1 | |
14791 | ||
14792 | C...Find string eigentimes at crossing. | |
14793 | IF(IANSW.EQ.1) THEN | |
14794 | TAUP=SQRT(MAX(0D0,(T-TP)**2-(XPP(1)-XP(1))**2- | |
14795 | & (XPP(2)-XP(2))**2-(XPP(3)-XP(3))**2)) | |
14796 | TAUM=SQRT(MAX(0D0,(T-TM)**2-(XMM(1)-XM(1))**2- | |
14797 | & (XMM(2)-XM(2))**2-(XMM(3)-XM(3))**2)) | |
14798 | ELSE | |
14799 | TAUP=0D0 | |
14800 | TAUM=0D0 | |
14801 | ENDIF | |
14802 | ||
14803 | C...Order crossings by time. End loop over crossings. | |
14804 | IF(IANSW.EQ.1.AND.NCROSS.LT.20) THEN | |
14805 | NCROSS=NCROSS+1 | |
14806 | DO 310 I1=NCROSS,1,-1 | |
14807 | IF(T.GT.TC(I1-1).OR.I1.EQ.1) THEN | |
14808 | IPC(I1)=IIP | |
14809 | IMC(I1)=IIM | |
14810 | TC(I1)=T | |
14811 | TPC(I1)=TAUP | |
14812 | TMC(I1)=TAUM | |
14813 | GOTO 320 | |
14814 | ELSE | |
14815 | IPC(I1)=IPC(I1-1) | |
14816 | IMC(I1)=IMC(I1-1) | |
14817 | TC(I1)=TC(I1-1) | |
14818 | TPC(I1)=TPC(I1-1) | |
14819 | TMC(I1)=TMC(I1-1) | |
14820 | ENDIF | |
14821 | 310 CONTINUE | |
14822 | 320 CONTINUE | |
14823 | ENDIF | |
14824 | 330 CONTINUE | |
14825 | 340 CONTINUE | |
14826 | ||
14827 | C...Loop over crossings; find first (if any) acceptable one. | |
14828 | IACC=0 | |
14829 | IF(NCROSS.GE.1) THEN | |
14830 | DO 350 IC=1,NCROSS | |
14831 | PNFRAG=EXP(-(TPC(IC)**2+TMC(IC)**2)/TFRAG**2) | |
14832 | IF(PNFRAG.GT.PYR(0)) THEN | |
14833 | C...Scenario II: only compare with fragmentation time. | |
14834 | IF(MSTP(115).EQ.2) THEN | |
14835 | IACC=IC | |
14836 | IIP=IPC(IACC) | |
14837 | IIM=IMC(IACC) | |
14838 | GOTO 360 | |
14839 | C...Scenario II': also require that string length decreases. | |
14840 | ELSE | |
14841 | IIP=IPC(IC) | |
14842 | IIM=IMC(IC) | |
14843 | I1P=INP(IIP) | |
14844 | I2P=INP(IIP+1) | |
14845 | I1M=INM(IIM) | |
14846 | I2M=INM(IIM+1) | |
14847 | ELOLD=FOUR(I1P,I2P)*FOUR(I1M,I2M) | |
14848 | ELNEW=FOUR(I1P,I2M)*FOUR(I1M,I2P) | |
14849 | IF(ELNEW.LT.ELOLD) THEN | |
14850 | IACC=IC | |
14851 | IIP=IPC(IACC) | |
14852 | IIM=IMC(IACC) | |
14853 | GOTO 360 | |
14854 | ENDIF | |
14855 | ENDIF | |
14856 | ENDIF | |
14857 | 350 CONTINUE | |
14858 | 360 CONTINUE | |
14859 | ENDIF | |
14860 | ||
14861 | C...Begin scenario GH specifics. | |
14862 | ELSEIF(MSTP(115).EQ.5) THEN | |
14863 | ||
14864 | C...Loop through all string pieces, one from W+ and one from W-. | |
14865 | IACC=0 | |
14866 | ELMIN=1D0 | |
14867 | DO 380 IIP=1,NNP-1 | |
14868 | IF(K(INP(IIP),2).LT.0) GOTO 380 | |
14869 | I1P=INP(IIP) | |
14870 | I2P=INP(IIP+1) | |
14871 | DO 370 IIM=1,NNM-1 | |
14872 | IF(K(INM(IIM),2).LT.0) GOTO 370 | |
14873 | I1M=INM(IIM) | |
14874 | I2M=INM(IIM+1) | |
14875 | ||
14876 | C...Look for largest decrease of (exponent of) Lambda measure. | |
14877 | ELOLD=FOUR(I1P,I2P)*FOUR(I1M,I2M) | |
14878 | ELNEW=FOUR(I1P,I2M)*FOUR(I1M,I2P) | |
14879 | ELDIF=ELNEW/MAX(1D-10,ELOLD) | |
14880 | IF(ELDIF.LT.ELMIN) THEN | |
14881 | IACC=IIP+IIM | |
14882 | ELMIN=ELDIF | |
14883 | IPC(1)=IIP | |
14884 | IMC(1)=IIM | |
14885 | ENDIF | |
14886 | 370 CONTINUE | |
14887 | 380 CONTINUE | |
14888 | IIP=IPC(1) | |
14889 | IIM=IMC(1) | |
14890 | ENDIF | |
14891 | ||
14892 | C...Common for scenarios I, II, II' and GH: reconnect strings. | |
14893 | IF(IACC.NE.0) THEN | |
14894 | MINT(32)=1 | |
14895 | NJOIN=0 | |
14896 | DO 390 IS=1,NNP+NNM | |
14897 | NJOIN=NJOIN+1 | |
14898 | IF(IS.LE.IIP) THEN | |
14899 | I=INP(IS) | |
14900 | ELSEIF(IS.LE.IIP+NNM-IIM) THEN | |
14901 | I=INM(IS-IIP+IIM) | |
14902 | ELSEIF(IS.LE.IIP+NNM) THEN | |
14903 | I=INM(IS-IIP-NNM+IIM) | |
14904 | ELSE | |
14905 | I=INP(IS-NNM) | |
14906 | ENDIF | |
14907 | IJOIN(NJOIN)=I | |
14908 | IF(K(I,2).LT.0) THEN | |
14909 | CALL PYJOIN(NJOIN,IJOIN) | |
14910 | NJOIN=0 | |
14911 | ENDIF | |
14912 | 390 CONTINUE | |
14913 | ||
14914 | C...Restore original event record if no reconnection. | |
14915 | ELSE | |
14916 | DO 400 I=NSD1+1,NOLD | |
14917 | IF(K(I,1).EQ.13.OR.K(I,1).EQ.14) THEN | |
14918 | K(I,4)=MOD(K(I,4),MSTU(5)**2) | |
14919 | K(I,5)=MOD(K(I,5),MSTU(5)**2) | |
14920 | ENDIF | |
14921 | 400 CONTINUE | |
14922 | DO 410 I=NOLD+1,N | |
14923 | K(K(I,3),1)=3 | |
14924 | 410 CONTINUE | |
14925 | N=NOLD | |
14926 | ENDIF | |
14927 | ||
14928 | C...Boost back system. | |
14929 | CALL PYROBO(IW1,IW1,0D0,0D0,BEWW(1),BEWW(2),BEWW(3)) | |
14930 | CALL PYROBO(IW2,IW2,0D0,0D0,BEWW(1),BEWW(2),BEWW(3)) | |
14931 | IF(N.GT.NOLD) CALL PYROBO(NOLD+1,N,0D0,0D0, | |
14932 | & BEWW(1),BEWW(2),BEWW(3)) | |
14933 | ||
14934 | C...Common part for intermediate and instantaneous scenarios. | |
14935 | ELSEIF(MSTP(115).EQ.11.OR.MSTP(115).EQ.12) THEN | |
14936 | MINT(32)=1 | |
14937 | ||
14938 | C...Remove old shower products and reset showering ones. | |
14939 | N=NSD1+4 | |
14940 | DO 420 I=NSD1+1,NSD1+4 | |
14941 | K(I,1)=3 | |
14942 | K(I,4)=MOD(K(I,4),MSTU(5)**2) | |
14943 | K(I,5)=MOD(K(I,5),MSTU(5)**2) | |
14944 | 420 CONTINUE | |
14945 | ||
14946 | C...Identify quark-antiquark pairs. | |
14947 | IQ1=NSD1+1 | |
14948 | IQ2=NSD1+2 | |
14949 | IQ3=NSD1+3 | |
14950 | IF(K(IQ1,2)*K(IQ3,2).LT.0) IQ3=NSD1+4 | |
14951 | IQ4=2*NSD1+7-IQ3 | |
14952 | ||
14953 | C...Reconnect strings. | |
14954 | IJOIN(1)=IQ1 | |
14955 | IJOIN(2)=IQ4 | |
14956 | CALL PYJOIN(2,IJOIN) | |
14957 | IJOIN(1)=IQ3 | |
14958 | IJOIN(2)=IQ2 | |
14959 | CALL PYJOIN(2,IJOIN) | |
14960 | ||
14961 | C...Do new parton showers in intermediate scenario. | |
14962 | IF(MSTP(71).GE.1.AND.MSTP(115).EQ.11) THEN | |
14963 | MSTJ50=MSTJ(50) | |
14964 | MSTJ(50)=0 | |
14965 | CALL PYSHOW(IQ1,IQ2,P(IW1,5)) | |
14966 | CALL PYSHOW(IQ3,IQ4,P(IW2,5)) | |
14967 | MSTJ(50)=MSTJ50 | |
14968 | ||
14969 | C...Do new parton showers in instantaneous scenario. | |
14970 | ELSEIF(MSTP(71).GE.1.AND.MSTP(115).EQ.12) THEN | |
14971 | PPM2=(P(IQ1,4)+P(IQ4,4))**2-(P(IQ1,1)+P(IQ4,1))**2- | |
14972 | & (P(IQ1,2)+P(IQ4,2))**2-(P(IQ1,3)+P(IQ4,3))**2 | |
14973 | PPM=SQRT(MAX(0D0,PPM2)) | |
14974 | CALL PYSHOW(IQ1,IQ4,PPM) | |
14975 | PPM2=(P(IQ3,4)+P(IQ2,4))**2-(P(IQ3,1)+P(IQ2,1))**2- | |
14976 | & (P(IQ3,2)+P(IQ2,2))**2-(P(IQ3,3)+P(IQ2,3))**2 | |
14977 | PPM=SQRT(MAX(0D0,PPM2)) | |
14978 | CALL PYSHOW(IQ3,IQ2,PPM) | |
14979 | ENDIF | |
14980 | ENDIF | |
14981 | ||
14982 | RETURN | |
14983 | END | |
14984 | ||
14985 | C*********************************************************************** | |
14986 | ||
14987 | C...PYKLIM | |
14988 | C...Checks generated variables against pre-set kinematical limits; | |
14989 | C...also calculates limits on variables used in generation. | |
14990 | ||
14991 | SUBROUTINE PYKLIM(ILIM) | |
14992 | ||
14993 | C...Double precision and integer declarations. | |
14994 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
14995 | INTEGER PYK,PYCHGE,PYCOMP | |
14996 | C...Commonblocks. | |
14997 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
14998 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
14999 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
15000 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
15001 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
15002 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
15003 | COMMON/PYINT1/MINT(400),VINT(400) | |
15004 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
15005 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/, | |
15006 | &/PYINT1/,/PYINT2/ | |
15007 | ||
15008 | C...Common kinematical expressions. | |
15009 | MINT(51)=0 | |
15010 | ISUB=MINT(1) | |
15011 | ISTSB=ISET(ISUB) | |
15012 | IF(ISUB.EQ.96) GOTO 100 | |
15013 | SQM3=VINT(63) | |
15014 | SQM4=VINT(64) | |
15015 | IF(ILIM.NE.0) THEN | |
15016 | IF(ABS(SQM3).LT.1D-4.AND.ABS(SQM4).LT.1D-4) THEN | |
15017 | CKIN09=MAX(CKIN(9),CKIN(13)) | |
15018 | CKIN10=MIN(CKIN(10),CKIN(14)) | |
15019 | CKIN11=MAX(CKIN(11),CKIN(15)) | |
15020 | CKIN12=MIN(CKIN(12),CKIN(16)) | |
15021 | ELSE | |
15022 | CKIN09=MAX(CKIN(9),MIN(0D0,CKIN(13))) | |
15023 | CKIN10=MIN(CKIN(10),MAX(0D0,CKIN(14))) | |
15024 | CKIN11=MAX(CKIN(11),MIN(0D0,CKIN(15))) | |
15025 | CKIN12=MIN(CKIN(12),MAX(0D0,CKIN(16))) | |
15026 | ENDIF | |
15027 | ENDIF | |
15028 | IF(ILIM.NE.1) THEN | |
15029 | TAU=VINT(21) | |
15030 | RM3=SQM3/(TAU*VINT(2)) | |
15031 | RM4=SQM4/(TAU*VINT(2)) | |
15032 | BE34=SQRT(MAX(1D-20,(1D0-RM3-RM4)**2-4D0*RM3*RM4)) | |
15033 | ENDIF | |
15034 | PTHMIN=CKIN(3) | |
15035 | IF(MIN(SQM3,SQM4).LT.CKIN(6)**2.AND.ISTSB.NE.1.AND.ISTSB.NE.3) | |
15036 | &PTHMIN=MAX(CKIN(3),CKIN(5)) | |
15037 | ||
15038 | IF(ILIM.EQ.0) THEN | |
15039 | C...Check generated values of tau, y*, cos(theta-hat), and tau' against | |
15040 | C...pre-set kinematical limits. | |
15041 | YST=VINT(22) | |
15042 | CTH=VINT(23) | |
15043 | TAUP=VINT(26) | |
15044 | TAUE=TAU | |
15045 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUE=TAUP | |
15046 | X1=SQRT(TAUE)*EXP(YST) | |
15047 | X2=SQRT(TAUE)*EXP(-YST) | |
15048 | XF=X1-X2 | |
15049 | IF(MINT(47).NE.1) THEN | |
15050 | IF(TAU*VINT(2).LT.CKIN(1)**2) MINT(51)=1 | |
15051 | IF(CKIN(2).GE.0D0.AND.TAU*VINT(2).GT.CKIN(2)**2) MINT(51)=1 | |
15052 | IF(YST.LT.CKIN(7).OR.YST.GT.CKIN(8)) MINT(51)=1 | |
15053 | IF(XF.LT.CKIN(25).OR.XF.GT.CKIN(26)) MINT(51)=1 | |
15054 | ENDIF | |
15055 | IF(MINT(45).NE.1) THEN | |
15056 | IF(X1.LT.CKIN(21).OR.X1.GT.CKIN(22)) MINT(51)=1 | |
15057 | ENDIF | |
15058 | IF(MINT(46).NE.1) THEN | |
15059 | IF(X2.LT.CKIN(23).OR.X2.GT.CKIN(24)) MINT(51)=1 | |
15060 | ENDIF | |
15061 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) THEN | |
15062 | PTH=0.5D0*BE34*SQRT(TAU*VINT(2)*MAX(0D0,1D0-CTH**2)) | |
15063 | EXPY3=MAX(1.D-10,(1D0+RM3-RM4+BE34*CTH)/ | |
15064 | & MAX(1.D-10,(1D0+RM3-RM4-BE34*CTH))) | |
15065 | EXPY4=MAX(1.D-10,(1D0-RM3+RM4-BE34*CTH)/ | |
15066 | & MAX(1.D-10,(1D0-RM3+RM4+BE34*CTH))) | |
15067 | Y3=YST+0.5D0*LOG(EXPY3) | |
15068 | Y4=YST+0.5D0*LOG(EXPY4) | |
15069 | YLARGE=MAX(Y3,Y4) | |
15070 | YSMALL=MIN(Y3,Y4) | |
15071 | ETALAR=10D0 | |
15072 | ETASMA=-10D0 | |
15073 | STH=SQRT(MAX(0D0,1D0-CTH**2)) | |
15074 | EXSQ3=SQRT(MAX(1D-20,((1D0+RM3-RM4)*COSH(YST)+BE34*SINH(YST)* | |
15075 | & CTH)**2-4D0*RM3)) | |
15076 | EXSQ4=SQRT(MAX(1D-20,((1D0-RM3+RM4)*COSH(YST)-BE34*SINH(YST)* | |
15077 | & CTH)**2-4D0*RM4)) | |
15078 | IF(STH.GE.1.D-6) THEN | |
15079 | EXPET3=((1D0+RM3-RM4)*SINH(YST)+BE34*COSH(YST)*CTH+EXSQ3)/ | |
15080 | & (BE34*STH) | |
15081 | EXPET4=((1D0-RM3+RM4)*SINH(YST)-BE34*COSH(YST)*CTH+EXSQ4)/ | |
15082 | & (BE34*STH) | |
15083 | ETA3=LOG(MIN(1.D10,MAX(1.D-10,EXPET3))) | |
15084 | ETA4=LOG(MIN(1.D10,MAX(1.D-10,EXPET4))) | |
15085 | ETALAR=MAX(ETA3,ETA4) | |
15086 | ETASMA=MIN(ETA3,ETA4) | |
15087 | ENDIF | |
15088 | CTS3=((1D0+RM3-RM4)*SINH(YST)+BE34*COSH(YST)*CTH)/EXSQ3 | |
15089 | CTS4=((1D0-RM3+RM4)*SINH(YST)-BE34*COSH(YST)*CTH)/EXSQ4 | |
15090 | CTSLAR=MIN(1D0,MAX(CTS3,CTS4)) | |
15091 | CTSSMA=MAX(-1D0,MIN(CTS3,CTS4)) | |
15092 | SH=TAU*VINT(2) | |
15093 | RPTS=4D0*VINT(71)**2/SH | |
15094 | BE34L=SQRT(MAX(0D0,(1D0-RM3-RM4)**2-4D0*RM3*RM4-RPTS)) | |
15095 | RM34=MAX(1D-20,2D0*RM3*RM4) | |
15096 | IF(2D0*VINT(71)**2/(VINT(21)*VINT(2)).LT.0.0001D0) | |
15097 | & RM34=MAX(RM34,2D0*VINT(71)**2/(VINT(21)*VINT(2))) | |
15098 | RTHM=(4D0*RM3*RM4+RPTS)/(1D0-RM3-RM4+BE34L) | |
15099 | THA=0.5D0*SH*MAX(RTHM,1D0-RM3-RM4-BE34*CTH) | |
15100 | UHA=0.5D0*SH*MAX(RTHM,1D0-RM3-RM4+BE34*CTH) | |
15101 | IF(PTH.LT.PTHMIN) MINT(51)=1 | |
15102 | IF(CKIN(4).GE.0D0.AND.PTH.GT.CKIN(4)) MINT(51)=1 | |
15103 | IF(YLARGE.LT.CKIN(9).OR.YLARGE.GT.CKIN(10)) MINT(51)=1 | |
15104 | IF(YSMALL.LT.CKIN(11).OR.YSMALL.GT.CKIN(12)) MINT(51)=1 | |
15105 | IF(ETALAR.LT.CKIN(13).OR.ETALAR.GT.CKIN(14)) MINT(51)=1 | |
15106 | IF(ETASMA.LT.CKIN(15).OR.ETASMA.GT.CKIN(16)) MINT(51)=1 | |
15107 | IF(CTSLAR.LT.CKIN(17).OR.CTSLAR.GT.CKIN(18)) MINT(51)=1 | |
15108 | IF(CTSSMA.LT.CKIN(19).OR.CTSSMA.GT.CKIN(20)) MINT(51)=1 | |
15109 | IF(CTH.LT.CKIN(27).OR.CTH.GT.CKIN(28)) MINT(51)=1 | |
15110 | IF(THA.LT.CKIN(35)) MINT(51)=1 | |
15111 | IF(CKIN(36).GE.0D0.AND.THA.GT.CKIN(36)) MINT(51)=1 | |
15112 | IF(UHA.LT.CKIN(37)) MINT(51)=1 | |
15113 | IF(CKIN(38).GE.0D0.AND.UHA.GT.CKIN(38)) MINT(51)=1 | |
15114 | ENDIF | |
15115 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) THEN | |
15116 | IF(TAUP*VINT(2).LT.CKIN(31)**2) MINT(51)=1 | |
15117 | IF(CKIN(32).GE.0D0.AND.TAUP*VINT(2).GT.CKIN(32)**2) MINT(51)=1 | |
15118 | ENDIF | |
15119 | ||
15120 | C...Additional cuts on W2 (approximately) in DIS. | |
15121 | IF(ISUB.EQ.10) THEN | |
15122 | XBJ=X2 | |
15123 | IF(IABS(MINT(12)).LT.20) XBJ=X1 | |
15124 | Q2BJ=THA | |
15125 | W2BJ=Q2BJ*(1D0-XBJ)/XBJ | |
15126 | IF(W2BJ.LT.CKIN(39)) MINT(51)=1 | |
15127 | IF(CKIN(40).GT.0D0.AND.W2BJ.GT.CKIN(40)) MINT(51)=1 | |
15128 | ENDIF | |
15129 | ||
15130 | ELSEIF(ILIM.EQ.1) THEN | |
15131 | C...Calculate limits on tau | |
15132 | C...0) due to definition | |
15133 | TAUMN0=0D0 | |
15134 | TAUMX0=1D0 | |
15135 | C...1) due to limits on subsystem mass | |
15136 | TAUMN1=CKIN(1)**2/VINT(2) | |
15137 | TAUMX1=1D0 | |
15138 | IF(CKIN(2).GE.0D0) TAUMX1=CKIN(2)**2/VINT(2) | |
15139 | C...2) due to limits on pT-hat (and non-overlapping rapidity intervals) | |
15140 | TM3=SQRT(SQM3+PTHMIN**2) | |
15141 | TM4=SQRT(SQM4+PTHMIN**2) | |
15142 | YDCOSH=1D0 | |
15143 | IF(CKIN09.GT.CKIN12) YDCOSH=COSH(CKIN09-CKIN12) | |
15144 | TAUMN2=(TM3**2+2D0*TM3*TM4*YDCOSH+TM4**2)/VINT(2) | |
15145 | TAUMX2=1D0 | |
15146 | C...3) due to limits on pT-hat and cos(theta-hat) | |
15147 | CTH2MN=MIN(CKIN(27)**2,CKIN(28)**2) | |
15148 | CTH2MX=MAX(CKIN(27)**2,CKIN(28)**2) | |
15149 | TAUMN3=0D0 | |
15150 | IF(CKIN(27)*CKIN(28).GT.0D0) TAUMN3= | |
15151 | & (SQRT(SQM3+PTHMIN**2/(1D0-CTH2MN))+ | |
15152 | & SQRT(SQM4+PTHMIN**2/(1D0-CTH2MN)))**2/VINT(2) | |
15153 | TAUMX3=1D0 | |
15154 | IF(CKIN(4).GE.0D0.AND.CTH2MX.LT.1D0) TAUMX3= | |
15155 | & (SQRT(SQM3+CKIN(4)**2/(1D0-CTH2MX))+ | |
15156 | & SQRT(SQM4+CKIN(4)**2/(1D0-CTH2MX)))**2/VINT(2) | |
15157 | C...4) due to limits on x1 and x2 | |
15158 | TAUMN4=CKIN(21)*CKIN(23) | |
15159 | TAUMX4=CKIN(22)*CKIN(24) | |
15160 | C...5) due to limits on xF | |
15161 | TAUMN5=0D0 | |
15162 | TAUMX5=MAX(1D0-CKIN(25),1D0+CKIN(26)) | |
15163 | C...6) due to limits on that and uhat | |
15164 | TAUMN6=(SQM3+SQM4+CKIN(35)+CKIN(37))/VINT(2) | |
15165 | TAUMX6=1D0 | |
15166 | IF(CKIN(36).GT.0D0.AND.CKIN(38).GT.0D0) TAUMX6= | |
15167 | & (SQM3+SQM4+CKIN(36)+CKIN(38))/VINT(2) | |
15168 | ||
15169 | C...Net effect of all separate limits. | |
15170 | VINT(11)=MAX(TAUMN0,TAUMN1,TAUMN2,TAUMN3,TAUMN4,TAUMN5,TAUMN6) | |
15171 | VINT(31)=MIN(TAUMX0,TAUMX1,TAUMX2,TAUMX3,TAUMX4,TAUMX5,TAUMX6) | |
15172 | IF(MINT(47).EQ.1.AND.(ISTSB.EQ.1.OR.ISTSB.EQ.2)) THEN | |
15173 | VINT(11)=0.99999D0 | |
15174 | VINT(31)=1.00001D0 | |
15175 | ELSEIF(MINT(47).EQ.5) THEN | |
15176 | VINT(31)=MIN(VINT(31),0.999998D0) | |
15177 | ENDIF | |
15178 | IF(VINT(31).LE.VINT(11)) MINT(51)=1 | |
15179 | ||
15180 | ELSEIF(ILIM.EQ.2) THEN | |
15181 | C...Calculate limits on y* | |
15182 | TAUE=TAU | |
15183 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUE=VINT(26) | |
15184 | TAURT=SQRT(TAUE) | |
15185 | C...0) due to kinematics | |
15186 | YSTMN0=LOG(TAURT) | |
15187 | YSTMX0=-YSTMN0 | |
15188 | C...1) due to explicit limits | |
15189 | YSTMN1=CKIN(7) | |
15190 | YSTMX1=CKIN(8) | |
15191 | C...2) due to limits on x1 | |
15192 | YSTMN2=LOG(MAX(TAUE,CKIN(21))/TAURT) | |
15193 | YSTMX2=LOG(MAX(TAUE,CKIN(22))/TAURT) | |
15194 | C...3) due to limits on x2 | |
15195 | YSTMN3=-LOG(MAX(TAUE,CKIN(24))/TAURT) | |
15196 | YSTMX3=-LOG(MAX(TAUE,CKIN(23))/TAURT) | |
15197 | C...4) due to limits on xF | |
15198 | YEPMN4=0.5D0*ABS(CKIN(25))/TAURT | |
15199 | YSTMN4=SIGN(LOG(MAX(1D-20,SQRT(1D0+YEPMN4**2)+YEPMN4)),CKIN(25)) | |
15200 | YEPMX4=0.5D0*ABS(CKIN(26))/TAURT | |
15201 | YSTMX4=SIGN(LOG(MAX(1D-20,SQRT(1D0+YEPMX4**2)+YEPMX4)),CKIN(26)) | |
15202 | C...5) due to simultaneous limits on y-large and y-small | |
15203 | YEPSMN=(RM3-RM4)*SINH(CKIN09-CKIN11) | |
15204 | YEPSMX=(RM3-RM4)*SINH(CKIN10-CKIN12) | |
15205 | YDIFMN=ABS(LOG(MAX(1D-20,SQRT(1D0+YEPSMN**2)-YEPSMN))) | |
15206 | YDIFMX=ABS(LOG(MAX(1D-20,SQRT(1D0+YEPSMX**2)-YEPSMX))) | |
15207 | YSTMN5=0.5D0*(CKIN09+CKIN11-YDIFMN) | |
15208 | YSTMX5=0.5D0*(CKIN10+CKIN12+YDIFMX) | |
15209 | C...6) due to simultaneous limits on cos(theta-hat) and y-large or | |
15210 | C... y-small | |
15211 | CTHLIM=SQRT(MAX(0D0,1D0-4D0*PTHMIN**2/(BE34**2*TAUE*VINT(2)))) | |
15212 | RZMN=BE34*MAX(CKIN(27),-CTHLIM) | |
15213 | RZMX=BE34*MIN(CKIN(28),CTHLIM) | |
15214 | YEX3MX=(1D0+RM3-RM4+RZMX)/MAX(1D-10,1D0+RM3-RM4-RZMX) | |
15215 | YEX4MX=(1D0+RM4-RM3-RZMN)/MAX(1D-10,1D0+RM4-RM3+RZMN) | |
15216 | YEX3MN=MAX(1D-10,1D0+RM3-RM4+RZMN)/(1D0+RM3-RM4-RZMN) | |
15217 | YEX4MN=MAX(1D-10,1D0+RM4-RM3-RZMX)/(1D0+RM4-RM3+RZMX) | |
15218 | YSTMN6=CKIN09-0.5D0*LOG(MAX(YEX3MX,YEX4MX)) | |
15219 | YSTMX6=CKIN12-0.5D0*LOG(MIN(YEX3MN,YEX4MN)) | |
15220 | ||
15221 | C...Net effect of all separate limits. | |
15222 | VINT(12)=MAX(YSTMN0,YSTMN1,YSTMN2,YSTMN3,YSTMN4,YSTMN5,YSTMN6) | |
15223 | VINT(32)=MIN(YSTMX0,YSTMX1,YSTMX2,YSTMX3,YSTMX4,YSTMX5,YSTMX6) | |
15224 | IF(MINT(47).EQ.1) THEN | |
15225 | VINT(12)=-0.00001D0 | |
15226 | VINT(32)=0.00001D0 | |
15227 | ELSEIF(MINT(47).EQ.2) THEN | |
15228 | VINT(12)=0.99999D0*YSTMX0 | |
15229 | VINT(32)=1.00001D0*YSTMX0 | |
15230 | ELSEIF(MINT(47).EQ.3) THEN | |
15231 | VINT(12)=-1.00001D0*YSTMX0 | |
15232 | VINT(32)=-0.99999D0*YSTMX0 | |
15233 | ELSEIF(MINT(47).EQ.5) THEN | |
15234 | YSTEE=LOG(0.999999D0/TAURT) | |
15235 | VINT(12)=MAX(VINT(12),-YSTEE) | |
15236 | VINT(32)=MIN(VINT(32),YSTEE) | |
15237 | ENDIF | |
15238 | IF(VINT(32).LE.VINT(12)) MINT(51)=1 | |
15239 | ||
15240 | ELSEIF(ILIM.EQ.3) THEN | |
15241 | C...Calculate limits on cos(theta-hat) | |
15242 | YST=VINT(22) | |
15243 | C...0) due to definition | |
15244 | CTNMN0=-1D0 | |
15245 | CTNMX0=0D0 | |
15246 | CTPMN0=0D0 | |
15247 | CTPMX0=1D0 | |
15248 | C...1) due to explicit limits | |
15249 | CTNMN1=MIN(0D0,CKIN(27)) | |
15250 | CTNMX1=MIN(0D0,CKIN(28)) | |
15251 | CTPMN1=MAX(0D0,CKIN(27)) | |
15252 | CTPMX1=MAX(0D0,CKIN(28)) | |
15253 | C...2) due to limits on pT-hat | |
15254 | CTNMN2=-SQRT(MAX(0D0,1D0-4D0*PTHMIN**2/(BE34**2*TAU*VINT(2)))) | |
15255 | CTPMX2=-CTNMN2 | |
15256 | CTNMX2=0D0 | |
15257 | CTPMN2=0D0 | |
15258 | IF(CKIN(4).GE.0D0) THEN | |
15259 | CTNMX2=-SQRT(MAX(0D0,1D0-4D0*CKIN(4)**2/ | |
15260 | & (BE34**2*TAU*VINT(2)))) | |
15261 | CTPMN2=-CTNMX2 | |
15262 | ENDIF | |
15263 | C...3) due to limits on y-large and y-small | |
15264 | CTNMN3=MIN(0D0,MAX((1D0+RM3-RM4)/BE34*TANH(CKIN11-YST), | |
15265 | & -(1D0-RM3+RM4)/BE34*TANH(CKIN10-YST))) | |
15266 | CTNMX3=MIN(0D0,(1D0+RM3-RM4)/BE34*TANH(CKIN12-YST), | |
15267 | & -(1D0-RM3+RM4)/BE34*TANH(CKIN09-YST)) | |
15268 | CTPMN3=MAX(0D0,(1D0+RM3-RM4)/BE34*TANH(CKIN09-YST), | |
15269 | & -(1D0-RM3+RM4)/BE34*TANH(CKIN12-YST)) | |
15270 | CTPMX3=MAX(0D0,MIN((1D0+RM3-RM4)/BE34*TANH(CKIN10-YST), | |
15271 | & -(1D0-RM3+RM4)/BE34*TANH(CKIN11-YST))) | |
15272 | C...4) due to limits on that | |
15273 | CTNMN4=-1D0 | |
15274 | CTNMX4=0D0 | |
15275 | CTPMN4=0D0 | |
15276 | CTPMX4=1D0 | |
15277 | SH=TAU*VINT(2) | |
15278 | IF(CKIN(35).GT.0D0) THEN | |
15279 | CTLIM=(1D0-RM3-RM4-2D0*CKIN(35)/SH)/BE34 | |
15280 | IF(CTLIM.GT.0D0) THEN | |
15281 | CTPMX4=CTLIM | |
15282 | ELSE | |
15283 | CTPMX4=0D0 | |
15284 | CTNMX4=CTLIM | |
15285 | ENDIF | |
15286 | ENDIF | |
15287 | IF(CKIN(36).GT.0D0) THEN | |
15288 | CTLIM=(1D0-RM3-RM4-2D0*CKIN(36)/SH)/BE34 | |
15289 | IF(CTLIM.LT.0D0) THEN | |
15290 | CTNMN4=CTLIM | |
15291 | ELSE | |
15292 | CTNMN4=0D0 | |
15293 | CTPMN4=CTLIM | |
15294 | ENDIF | |
15295 | ENDIF | |
15296 | C...5) due to limits on uhat | |
15297 | CTNMN5=-1D0 | |
15298 | CTNMX5=0D0 | |
15299 | CTPMN5=0D0 | |
15300 | CTPMX5=1D0 | |
15301 | IF(CKIN(37).GT.0D0) THEN | |
15302 | CTLIM=(2D0*CKIN(37)/SH-(1D0-RM3-RM4))/BE34 | |
15303 | IF(CTLIM.LT.0D0) THEN | |
15304 | CTNMN5=CTLIM | |
15305 | ELSE | |
15306 | CTNMN5=0D0 | |
15307 | CTPMN5=CTLIM | |
15308 | ENDIF | |
15309 | ENDIF | |
15310 | IF(CKIN(38).GT.0D0) THEN | |
15311 | CTLIM=(2D0*CKIN(38)/SH-(1D0-RM3-RM4))/BE34 | |
15312 | IF(CTLIM.GT.0D0) THEN | |
15313 | CTPMX5=CTLIM | |
15314 | ELSE | |
15315 | CTPMX5=0D0 | |
15316 | CTNMX5=CTLIM | |
15317 | ENDIF | |
15318 | ENDIF | |
15319 | ||
15320 | C...Net effect of all separate limits. | |
15321 | VINT(13)=MAX(CTNMN0,CTNMN1,CTNMN2,CTNMN3,CTNMN4,CTNMN5) | |
15322 | VINT(33)=MIN(CTNMX0,CTNMX1,CTNMX2,CTNMX3,CTNMX4,CTNMX5) | |
15323 | VINT(14)=MAX(CTPMN0,CTPMN1,CTPMN2,CTPMN3,CTPMN4,CTPMN5) | |
15324 | VINT(34)=MIN(CTPMX0,CTPMX1,CTPMX2,CTPMX3,CTPMX4,CTPMX5) | |
15325 | IF(VINT(33).LE.VINT(13).AND.VINT(34).LE.VINT(14)) MINT(51)=1 | |
15326 | ||
15327 | ELSEIF(ILIM.EQ.4) THEN | |
15328 | C...Calculate limits on tau' | |
15329 | C...0) due to kinematics | |
15330 | TAPMN0=TAU | |
15331 | IF(ISTSB.EQ.5.AND.KFPR(ISUB,2).GT.0) THEN | |
15332 | PQRAT=2D0*PMAS(PYCOMP(KFPR(ISUB,2)),1)/VINT(1) | |
15333 | TAPMN0=(SQRT(TAU)+PQRAT)**2 | |
15334 | ENDIF | |
15335 | TAPMX0=1D0 | |
15336 | C...1) due to explicit limits | |
15337 | TAPMN1=CKIN(31)**2/VINT(2) | |
15338 | TAPMX1=1D0 | |
15339 | IF(CKIN(32).GE.0D0) TAPMX1=CKIN(32)**2/VINT(2) | |
15340 | ||
15341 | C...Net effect of all separate limits. | |
15342 | VINT(16)=MAX(TAPMN0,TAPMN1) | |
15343 | VINT(36)=MIN(TAPMX0,TAPMX1) | |
15344 | IF(MINT(47).EQ.1) THEN | |
15345 | VINT(16)=0.99999D0 | |
15346 | VINT(36)=1.00001D0 | |
15347 | ENDIF | |
15348 | IF(VINT(36).LE.VINT(16)) MINT(51)=1 | |
15349 | ||
15350 | ENDIF | |
15351 | RETURN | |
15352 | ||
15353 | C...Special case for low-pT and multiple interactions: | |
15354 | C...effective kinematical limits for tau, y*, cos(theta-hat). | |
15355 | 100 IF(ILIM.EQ.0) THEN | |
15356 | ELSEIF(ILIM.EQ.1) THEN | |
15357 | IF(MSTP(82).LE.1) VINT(11)=4D0*PARP(81)**2/VINT(2) | |
15358 | IF(MSTP(82).GE.2) VINT(11)=PARP(82)**2/VINT(2) | |
15359 | VINT(31)=1D0 | |
15360 | ELSEIF(ILIM.EQ.2) THEN | |
15361 | VINT(12)=0.5D0*LOG(VINT(21)) | |
15362 | VINT(32)=-VINT(12) | |
15363 | ELSEIF(ILIM.EQ.3) THEN | |
15364 | IF(MSTP(82).LE.1) ST2EFF=4D0*PARP(81)**2/(VINT(21)*VINT(2)) | |
15365 | IF(MSTP(82).GE.2) ST2EFF=0.01D0*PARP(82)**2/(VINT(21)*VINT(2)) | |
15366 | VINT(13)=-SQRT(MAX(0D0,1D0-ST2EFF)) | |
15367 | VINT(33)=0D0 | |
15368 | VINT(14)=0D0 | |
15369 | VINT(34)=-VINT(13) | |
15370 | ENDIF | |
15371 | ||
15372 | RETURN | |
15373 | END | |
15374 | ||
15375 | C********************************************************************* | |
15376 | ||
15377 | C...PYKMAP | |
15378 | C...Maps a uniform distribution into a distribution of a kinematical | |
15379 | C...variable according to one of the possibilities allowed. It is | |
15380 | C...assumed that kinematical limits have been set by a PYKLIM call. | |
15381 | ||
15382 | SUBROUTINE PYKMAP(IVAR,MVAR,VVAR) | |
15383 | ||
15384 | C...Double precision and integer declarations. | |
15385 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
15386 | INTEGER PYK,PYCHGE,PYCOMP | |
15387 | C...Commonblocks. | |
15388 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
15389 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
15390 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
15391 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
15392 | COMMON/PYINT1/MINT(400),VINT(400) | |
15393 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
15394 | SAVE /PYDAT1/,/PYDAT2/,/PYSUBS/,/PYPARS/,/PYINT1/,/PYINT2/ | |
15395 | ||
15396 | C...Convert VVAR to tau variable. | |
15397 | ISUB=MINT(1) | |
15398 | ISTSB=ISET(ISUB) | |
15399 | IF(IVAR.EQ.1) THEN | |
15400 | TAUMIN=VINT(11) | |
15401 | TAUMAX=VINT(31) | |
15402 | IF(MVAR.EQ.3.OR.MVAR.EQ.4) THEN | |
15403 | TAURE=VINT(73) | |
15404 | GAMRE=VINT(74) | |
15405 | ELSEIF(MVAR.EQ.5.OR.MVAR.EQ.6) THEN | |
15406 | TAURE=VINT(75) | |
15407 | GAMRE=VINT(76) | |
15408 | ENDIF | |
15409 | IF(MINT(47).EQ.1.AND.(ISTSB.EQ.1.OR.ISTSB.EQ.2)) THEN | |
15410 | TAU=1D0 | |
15411 | ELSEIF(MVAR.EQ.1) THEN | |
15412 | TAU=TAUMIN*(TAUMAX/TAUMIN)**VVAR | |
15413 | ELSEIF(MVAR.EQ.2) THEN | |
15414 | TAU=TAUMAX*TAUMIN/(TAUMIN+(TAUMAX-TAUMIN)*VVAR) | |
15415 | ELSEIF(MVAR.EQ.3.OR.MVAR.EQ.5) THEN | |
15416 | RATGEN=(TAURE+TAUMAX)/(TAURE+TAUMIN)*TAUMIN/TAUMAX | |
15417 | TAU=TAURE*TAUMIN/((TAURE+TAUMIN)*RATGEN**VVAR-TAUMIN) | |
15418 | ELSEIF(MVAR.EQ.4.OR.MVAR.EQ.6) THEN | |
15419 | AUPP=ATAN((TAUMAX-TAURE)/GAMRE) | |
15420 | ALOW=ATAN((TAUMIN-TAURE)/GAMRE) | |
15421 | TAU=TAURE+GAMRE*TAN(ALOW+(AUPP-ALOW)*VVAR) | |
15422 | ELSE | |
15423 | AUPP=LOG(MAX(2D-6,1D0-TAUMAX)) | |
15424 | ALOW=LOG(MAX(2D-6,1D0-TAUMIN)) | |
15425 | TAU=1D0-EXP(AUPP+VVAR*(ALOW-AUPP)) | |
15426 | ENDIF | |
15427 | VINT(21)=MIN(TAUMAX,MAX(TAUMIN,TAU)) | |
15428 | ||
15429 | C...Convert VVAR to y* variable. | |
15430 | ELSEIF(IVAR.EQ.2) THEN | |
15431 | YSTMIN=VINT(12) | |
15432 | YSTMAX=VINT(32) | |
15433 | TAUE=VINT(21) | |
15434 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUE=VINT(26) | |
15435 | IF(MINT(47).EQ.1) THEN | |
15436 | YST=0D0 | |
15437 | ELSEIF(MINT(47).EQ.2) THEN | |
15438 | YST=-0.5D0*LOG(TAUE) | |
15439 | ELSEIF(MINT(47).EQ.3) THEN | |
15440 | YST=0.5D0*LOG(TAUE) | |
15441 | ELSEIF(MVAR.EQ.1) THEN | |
15442 | YST=YSTMIN+(YSTMAX-YSTMIN)*SQRT(VVAR) | |
15443 | ELSEIF(MVAR.EQ.2) THEN | |
15444 | YST=YSTMAX-(YSTMAX-YSTMIN)*SQRT(1D0-VVAR) | |
15445 | ELSEIF(MVAR.EQ.3) THEN | |
15446 | AUPP=ATAN(EXP(YSTMAX)) | |
15447 | ALOW=ATAN(EXP(YSTMIN)) | |
15448 | YST=LOG(TAN(ALOW+(AUPP-ALOW)*VVAR)) | |
15449 | ELSEIF(MVAR.EQ.4) THEN | |
15450 | YST0=-0.5D0*LOG(TAUE) | |
15451 | AUPP=LOG(MAX(1D-6,EXP(YST0-YSTMIN)-1D0)) | |
15452 | ALOW=LOG(MAX(1D-6,EXP(YST0-YSTMAX)-1D0)) | |
15453 | YST=YST0-LOG(1D0+EXP(ALOW+VVAR*(AUPP-ALOW))) | |
15454 | ELSE | |
15455 | YST0=-0.5D0*LOG(TAUE) | |
15456 | AUPP=LOG(MAX(1D-6,EXP(YST0+YSTMIN)-1D0)) | |
15457 | ALOW=LOG(MAX(1D-6,EXP(YST0+YSTMAX)-1D0)) | |
15458 | YST=LOG(1D0+EXP(AUPP+VVAR*(ALOW-AUPP)))-YST0 | |
15459 | ENDIF | |
15460 | VINT(22)=MIN(YSTMAX,MAX(YSTMIN,YST)) | |
15461 | ||
15462 | C...Convert VVAR to cos(theta-hat) variable. | |
15463 | ELSEIF(IVAR.EQ.3) THEN | |
15464 | RM34=MAX(1D-20,2D0*VINT(63)*VINT(64)/(VINT(21)*VINT(2))**2) | |
15465 | RSQM=1D0+RM34 | |
15466 | IF(2D0*VINT(71)**2/(VINT(21)*VINT(2)).LT.0.0001D0) | |
15467 | & RM34=MAX(RM34,2D0*VINT(71)**2/(VINT(21)*VINT(2))) | |
15468 | CTNMIN=VINT(13) | |
15469 | CTNMAX=VINT(33) | |
15470 | CTPMIN=VINT(14) | |
15471 | CTPMAX=VINT(34) | |
15472 | IF(MVAR.EQ.1) THEN | |
15473 | ANEG=CTNMAX-CTNMIN | |
15474 | APOS=CTPMAX-CTPMIN | |
15475 | IF(ANEG.GT.0D0.AND.VVAR*(ANEG+APOS).LE.ANEG) THEN | |
15476 | VCTN=VVAR*(ANEG+APOS)/ANEG | |
15477 | CTH=CTNMIN+(CTNMAX-CTNMIN)*VCTN | |
15478 | ELSE | |
15479 | VCTP=(VVAR*(ANEG+APOS)-ANEG)/APOS | |
15480 | CTH=CTPMIN+(CTPMAX-CTPMIN)*VCTP | |
15481 | ENDIF | |
15482 | ELSEIF(MVAR.EQ.2) THEN | |
15483 | RMNMIN=MAX(RM34,RSQM-CTNMIN) | |
15484 | RMNMAX=MAX(RM34,RSQM-CTNMAX) | |
15485 | RMPMIN=MAX(RM34,RSQM-CTPMIN) | |
15486 | RMPMAX=MAX(RM34,RSQM-CTPMAX) | |
15487 | ANEG=LOG(RMNMIN/RMNMAX) | |
15488 | APOS=LOG(RMPMIN/RMPMAX) | |
15489 | IF(ANEG.GT.0D0.AND.VVAR*(ANEG+APOS).LE.ANEG) THEN | |
15490 | VCTN=VVAR*(ANEG+APOS)/ANEG | |
15491 | CTH=RSQM-RMNMIN*(RMNMAX/RMNMIN)**VCTN | |
15492 | ELSE | |
15493 | VCTP=(VVAR*(ANEG+APOS)-ANEG)/APOS | |
15494 | CTH=RSQM-RMPMIN*(RMPMAX/RMPMIN)**VCTP | |
15495 | ENDIF | |
15496 | ELSEIF(MVAR.EQ.3) THEN | |
15497 | RMNMIN=MAX(RM34,RSQM+CTNMIN) | |
15498 | RMNMAX=MAX(RM34,RSQM+CTNMAX) | |
15499 | RMPMIN=MAX(RM34,RSQM+CTPMIN) | |
15500 | RMPMAX=MAX(RM34,RSQM+CTPMAX) | |
15501 | ANEG=LOG(RMNMAX/RMNMIN) | |
15502 | APOS=LOG(RMPMAX/RMPMIN) | |
15503 | IF(ANEG.GT.0D0.AND.VVAR*(ANEG+APOS).LE.ANEG) THEN | |
15504 | VCTN=VVAR*(ANEG+APOS)/ANEG | |
15505 | CTH=RMNMIN*(RMNMAX/RMNMIN)**VCTN-RSQM | |
15506 | ELSE | |
15507 | VCTP=(VVAR*(ANEG+APOS)-ANEG)/APOS | |
15508 | CTH=RMPMIN*(RMPMAX/RMPMIN)**VCTP-RSQM | |
15509 | ENDIF | |
15510 | ELSEIF(MVAR.EQ.4) THEN | |
15511 | RMNMIN=MAX(RM34,RSQM-CTNMIN) | |
15512 | RMNMAX=MAX(RM34,RSQM-CTNMAX) | |
15513 | RMPMIN=MAX(RM34,RSQM-CTPMIN) | |
15514 | RMPMAX=MAX(RM34,RSQM-CTPMAX) | |
15515 | ANEG=1D0/RMNMAX-1D0/RMNMIN | |
15516 | APOS=1D0/RMPMAX-1D0/RMPMIN | |
15517 | IF(ANEG.GT.0D0.AND.VVAR*(ANEG+APOS).LE.ANEG) THEN | |
15518 | VCTN=VVAR*(ANEG+APOS)/ANEG | |
15519 | CTH=RSQM-1D0/(1D0/RMNMIN+ANEG*VCTN) | |
15520 | ELSE | |
15521 | VCTP=(VVAR*(ANEG+APOS)-ANEG)/APOS | |
15522 | CTH=RSQM-1D0/(1D0/RMPMIN+APOS*VCTP) | |
15523 | ENDIF | |
15524 | ELSEIF(MVAR.EQ.5) THEN | |
15525 | RMNMIN=MAX(RM34,RSQM+CTNMIN) | |
15526 | RMNMAX=MAX(RM34,RSQM+CTNMAX) | |
15527 | RMPMIN=MAX(RM34,RSQM+CTPMIN) | |
15528 | RMPMAX=MAX(RM34,RSQM+CTPMAX) | |
15529 | ANEG=1D0/RMNMIN-1D0/RMNMAX | |
15530 | APOS=1D0/RMPMIN-1D0/RMPMAX | |
15531 | IF(ANEG.GT.0D0.AND.VVAR*(ANEG+APOS).LE.ANEG) THEN | |
15532 | VCTN=VVAR*(ANEG+APOS)/ANEG | |
15533 | CTH=1D0/(1D0/RMNMIN-ANEG*VCTN)-RSQM | |
15534 | ELSE | |
15535 | VCTP=(VVAR*(ANEG+APOS)-ANEG)/APOS | |
15536 | CTH=1D0/(1D0/RMPMIN-APOS*VCTP)-RSQM | |
15537 | ENDIF | |
15538 | ENDIF | |
15539 | IF(CTH.LT.0D0) CTH=MIN(CTNMAX,MAX(CTNMIN,CTH)) | |
15540 | IF(CTH.GT.0D0) CTH=MIN(CTPMAX,MAX(CTPMIN,CTH)) | |
15541 | VINT(23)=CTH | |
15542 | ||
15543 | C...Convert VVAR to tau' variable. | |
15544 | ELSEIF(IVAR.EQ.4) THEN | |
15545 | TAU=VINT(21) | |
15546 | TAUPMN=VINT(16) | |
15547 | TAUPMX=VINT(36) | |
15548 | IF(MINT(47).EQ.1) THEN | |
15549 | TAUP=1D0 | |
15550 | ELSEIF(MVAR.EQ.1) THEN | |
15551 | TAUP=TAUPMN*(TAUPMX/TAUPMN)**VVAR | |
15552 | ELSEIF(MVAR.EQ.2) THEN | |
15553 | AUPP=(1D0-TAU/TAUPMX)**4 | |
15554 | ALOW=(1D0-TAU/TAUPMN)**4 | |
15555 | TAUP=TAU/MAX(1D-7,1D0-(ALOW+(AUPP-ALOW)*VVAR)**0.25D0) | |
15556 | ELSE | |
15557 | AUPP=LOG(MAX(2D-6,1D0-TAUPMX)) | |
15558 | ALOW=LOG(MAX(2D-6,1D0-TAUPMN)) | |
15559 | TAUP=1D0-EXP(AUPP+VVAR*(ALOW-AUPP)) | |
15560 | ENDIF | |
15561 | VINT(26)=MIN(TAUPMX,MAX(TAUPMN,TAUP)) | |
15562 | ||
15563 | C...Selection of extra variables needed in 2 -> 3 process: | |
15564 | C...pT1, pT2, phi1, phi2, y3 for three outgoing particles. | |
15565 | C...Since no options are available, the functions of PYKLIM | |
15566 | C...and PYKMAP are joint for these choices. | |
15567 | ELSEIF(IVAR.EQ.5) THEN | |
15568 | ||
15569 | C...Read out total energy and particle masses. | |
15570 | MINT(51)=0 | |
15571 | MPTPK=1 | |
15572 | IF(ISUB.EQ.123.OR.ISUB.EQ.124.OR.ISUB.EQ.173.OR.ISUB.EQ.174 | |
15573 | & .OR.ISUB.EQ.178.OR.ISUB.EQ.179) MPTPK=2 | |
15574 | SHP=VINT(26)*VINT(2) | |
15575 | SHPR=SQRT(SHP) | |
15576 | PM1=VINT(201) | |
15577 | PM2=VINT(206) | |
15578 | PM3=SQRT(VINT(21))*VINT(1) | |
15579 | IF(PM1+PM2+PM3.GT.0.9999D0*SHPR) THEN | |
15580 | MINT(51)=1 | |
15581 | RETURN | |
15582 | ENDIF | |
15583 | PMRS1=VINT(204)**2 | |
15584 | PMRS2=VINT(209)**2 | |
15585 | ||
15586 | C...Specify coefficients of pT choice; upper and lower limits. | |
15587 | IF(MPTPK.EQ.1) THEN | |
15588 | HWT1=0.4D0 | |
15589 | HWT2=0.4D0 | |
15590 | ELSE | |
15591 | HWT1=0.05D0 | |
15592 | HWT2=0.05D0 | |
15593 | ENDIF | |
15594 | HWT3=1D0-HWT1-HWT2 | |
15595 | PTSMX1=((SHP-PM1**2-(PM2+PM3)**2)**2-(2D0*PM1*(PM2+PM3))**2)/ | |
15596 | & (4D0*SHP) | |
15597 | IF(CKIN(52).GT.0D0) PTSMX1=MIN(PTSMX1,CKIN(52)**2) | |
15598 | PTSMN1=CKIN(51)**2 | |
15599 | PTSMX2=((SHP-PM2**2-(PM1+PM3)**2)**2-(2D0*PM2*(PM1+PM3))**2)/ | |
15600 | & (4D0*SHP) | |
15601 | IF(CKIN(54).GT.0D0) PTSMX2=MIN(PTSMX2,CKIN(54)**2) | |
15602 | PTSMN2=CKIN(53)**2 | |
15603 | ||
15604 | C...Select transverse momenta according to | |
15605 | C...dp_T^2 * (a + b/(M^2 + p_T^2) + c/(M^2 + p_T^2)^2). | |
15606 | HMX=PMRS1+PTSMX1 | |
15607 | HMN=PMRS1+PTSMN1 | |
15608 | IF(HMX.LT.1.0001D0*HMN) THEN | |
15609 | MINT(51)=1 | |
15610 | RETURN | |
15611 | ENDIF | |
15612 | HDE=PTSMX1-PTSMN1 | |
15613 | RPT=PYR(0) | |
15614 | IF(RPT.LT.HWT1) THEN | |
15615 | PTS1=PTSMN1+PYR(0)*HDE | |
15616 | ELSEIF(RPT.LT.HWT1+HWT2) THEN | |
15617 | PTS1=MAX(PTSMN1,HMN*(HMX/HMN)**PYR(0)-PMRS1) | |
15618 | ELSE | |
15619 | PTS1=MAX(PTSMN1,HMN*HMX/(HMN+PYR(0)*HDE)-PMRS1) | |
15620 | ENDIF | |
15621 | WTPTS1=HDE/(HWT1+HWT2*HDE/(LOG(HMX/HMN)*(PMRS1+PTS1))+ | |
15622 | & HWT3*HMN*HMX/(PMRS1+PTS1)**2) | |
15623 | HMX=PMRS2+PTSMX2 | |
15624 | HMN=PMRS2+PTSMN2 | |
15625 | IF(HMX.LT.1.0001D0*HMN) THEN | |
15626 | MINT(51)=1 | |
15627 | RETURN | |
15628 | ENDIF | |
15629 | HDE=PTSMX2-PTSMN2 | |
15630 | RPT=PYR(0) | |
15631 | IF(RPT.LT.HWT1) THEN | |
15632 | PTS2=PTSMN2+PYR(0)*HDE | |
15633 | ELSEIF(RPT.LT.HWT1+HWT2) THEN | |
15634 | PTS2=MAX(PTSMN2,HMN*(HMX/HMN)**PYR(0)-PMRS2) | |
15635 | ELSE | |
15636 | PTS2=MAX(PTSMN2,HMN*HMX/(HMN+PYR(0)*HDE)-PMRS2) | |
15637 | ENDIF | |
15638 | WTPTS2=HDE/(HWT1+HWT2*HDE/(LOG(HMX/HMN)*(PMRS2+PTS2))+ | |
15639 | & HWT3*HMN*HMX/(PMRS2+PTS2)**2) | |
15640 | ||
15641 | C...Select azimuthal angles and check pT choice. | |
15642 | PHI1=PARU(2)*PYR(0) | |
15643 | PHI2=PARU(2)*PYR(0) | |
15644 | PHIR=PHI2-PHI1 | |
15645 | PTS3=MAX(0D0,PTS1+PTS2+2D0*SQRT(PTS1*PTS2)*COS(PHIR)) | |
15646 | IF(PTS3.LT.CKIN(55)**2.OR.(CKIN(56).GT.0D0.AND.PTS3.GT. | |
15647 | & CKIN(56)**2)) THEN | |
15648 | MINT(51)=1 | |
15649 | RETURN | |
15650 | ENDIF | |
15651 | ||
15652 | C...Calculate transverse masses and check phase space not closed. | |
15653 | PMS1=PM1**2+PTS1 | |
15654 | PMS2=PM2**2+PTS2 | |
15655 | PMS3=PM3**2+PTS3 | |
15656 | PMT1=SQRT(PMS1) | |
15657 | PMT2=SQRT(PMS2) | |
15658 | PMT3=SQRT(PMS3) | |
15659 | PM12=(PMT1+PMT2)**2 | |
15660 | IF(PMT1+PMT2+PMT3.GT.0.9999D0*SHPR) THEN | |
15661 | MINT(51)=1 | |
15662 | RETURN | |
15663 | ENDIF | |
15664 | ||
15665 | C...Select rapidity for particle 3 and check phase space not closed. | |
15666 | Y3MAX=LOG((SHP+PMS3-PM12+SQRT(MAX(0D0,(SHP-PMS3-PM12)**2- | |
15667 | & 4D0*PMS3*PM12)))/(2D0*SHPR*PMT3)) | |
15668 | IF(Y3MAX.LT.1D-6) THEN | |
15669 | MINT(51)=1 | |
15670 | RETURN | |
15671 | ENDIF | |
15672 | Y3=(2D0*PYR(0)-1D0)*0.999999D0*Y3MAX | |
15673 | PZ3=PMT3*SINH(Y3) | |
15674 | PE3=PMT3*COSH(Y3) | |
15675 | ||
15676 | C...Find momentum transfers in two mirror solutions (in 1-2 frame). | |
15677 | PZ12=-PZ3 | |
15678 | PE12=SHPR-PE3 | |
15679 | PMS12=PE12**2-PZ12**2 | |
15680 | SQL12=SQRT(MAX(0D0,(PMS12-PMS1-PMS2)**2-4D0*PMS1*PMS2)) | |
15681 | IF(SQL12.LT.1D-6*SHP) THEN | |
15682 | MINT(51)=1 | |
15683 | RETURN | |
15684 | ENDIF | |
15685 | PMM1=PMS12+PMS1-PMS2 | |
15686 | PMM2=PMS12+PMS2-PMS1 | |
15687 | TFAC=-SHPR/(2D0*PMS12) | |
15688 | T1P=TFAC*(PE12-PZ12)*(PMM1-SQL12) | |
15689 | T1N=TFAC*(PE12-PZ12)*(PMM1+SQL12) | |
15690 | T2P=TFAC*(PE12+PZ12)*(PMM2-SQL12) | |
15691 | T2N=TFAC*(PE12+PZ12)*(PMM2+SQL12) | |
15692 | ||
15693 | C...Construct relative mirror weights and make choice. | |
15694 | IF(MPTPK.EQ.1) THEN | |
15695 | WTPU=1D0 | |
15696 | WTNU=1D0 | |
15697 | ELSE | |
15698 | WTPU=1D0/((T1P-PMRS1)*(T2P-PMRS2))**2 | |
15699 | WTNU=1D0/((T1N-PMRS1)*(T2N-PMRS2))**2 | |
15700 | ENDIF | |
15701 | WTP=WTPU/(WTPU+WTNU) | |
15702 | WTN=WTNU/(WTPU+WTNU) | |
15703 | EPS=1D0 | |
15704 | IF(WTN.GT.PYR(0)) EPS=-1D0 | |
15705 | ||
15706 | C...Store result of variable choice and associated weights. | |
15707 | VINT(202)=PTS1 | |
15708 | VINT(207)=PTS2 | |
15709 | VINT(203)=PHI1 | |
15710 | VINT(208)=PHI2 | |
15711 | VINT(205)=WTPTS1 | |
15712 | VINT(210)=WTPTS2 | |
15713 | VINT(211)=Y3 | |
15714 | VINT(212)=Y3MAX | |
15715 | VINT(213)=EPS | |
15716 | IF(EPS.GT.0D0) THEN | |
15717 | VINT(214)=1D0/WTP | |
15718 | VINT(215)=T1P | |
15719 | VINT(216)=T2P | |
15720 | ELSE | |
15721 | VINT(214)=1D0/WTN | |
15722 | VINT(215)=T1N | |
15723 | VINT(216)=T2N | |
15724 | ENDIF | |
15725 | VINT(217)=-0.5D0*TFAC*(PE12-PZ12)*(PMM2+EPS*SQL12) | |
15726 | VINT(218)=-0.5D0*TFAC*(PE12+PZ12)*(PMM1+EPS*SQL12) | |
15727 | VINT(219)=0.5D0*(PMS12-PTS3) | |
15728 | VINT(220)=SQL12 | |
15729 | ENDIF | |
15730 | ||
15731 | RETURN | |
15732 | END | |
15733 | ||
15734 | C*********************************************************************** | |
15735 | ||
15736 | C...PYSIGH | |
15737 | C...Differential matrix elements for all included subprocesses | |
15738 | C...Note that what is coded is (disregarding the COMFAC factor) | |
15739 | C...1) for 2 -> 1 processes: s-hat/pi*d(sigma-hat), where, | |
15740 | C...when d(sigma-hat) is given in the zero-width limit, the delta | |
15741 | C...function in tau is replaced by a (modified) Breit-Wigner: | |
15742 | C...1/pi*s*H_res/((s*tau-m_res^2)^2+H_res^2), | |
15743 | C...where H_res = s-hat/m_res*Gamma_res(s-hat); | |
15744 | C...2) for 2 -> 2 processes: (s-hat)**2/pi*d(sigma-hat)/d(t-hat); | |
15745 | C...i.e., dimensionless quantities | |
15746 | C...3) for 2 -> 3 processes: abs(M)^2, where the total cross-section is | |
15747 | C...Integral abs(M)^2/(2shat') * (prod_(i=1)^3 d^3p_i/((2pi)^3*2E_i)) * | |
15748 | C...(2pi)^4 delta^4(P - sum p_i) | |
15749 | C...COMFAC contains the factor pi/s (or equivalent) and | |
15750 | C...the conversion factor from GeV^-2 to mb | |
15751 | ||
15752 | SUBROUTINE PYSIGH(NCHN,SIGS) | |
15753 | ||
15754 | C...Double precision and integer declarations | |
15755 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
15756 | INTEGER PYK,PYCHGE,PYCOMP | |
15757 | C...Parameter statement to help give large particle numbers. | |
15758 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
15759 | C...Commonblocks | |
15760 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
15761 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
15762 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
15763 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
15764 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
15765 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
15766 | COMMON/PYINT1/MINT(400),VINT(400) | |
15767 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
15768 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
15769 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
15770 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
15771 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
15772 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
15773 | &SFMIX(16,4) | |
15774 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYSUBS/,/PYPARS/, | |
15775 | &/PYINT1/,/PYINT2/,/PYINT3/,/PYINT4/,/PYINT5/,/PYINT7/, | |
15776 | &/PYSSMT/ | |
15777 | C...Local arrays and complex variables | |
15778 | DIMENSION X(2),XPQ(-25:25),KFAC(2,-40:40),WDTP(0:200), | |
15779 | &WDTE(0:200,0:5),HGZ(6,3),HL3(3),HR3(3),HL4(3),HR4(3) | |
15780 | COMPLEX A004,A204,A114,A00U,A20U,A11U | |
15781 | COMPLEX CIGTOT,CIZTOT,F0ALP,F1ALP,F2ALP,F0BET,F1BET,F2BET,FIF, | |
15782 | &COULCK,COULCP,COULCD,COULCR,COULCS | |
15783 | REAL A00L,A11L,A20L,COULXX | |
15784 | ||
15785 | C...Reset number of channels and cross-section | |
15786 | NCHN=0 | |
15787 | SIGS=0D0 | |
15788 | ||
15789 | C...Convert H or A process into equivalent h one | |
15790 | ISUB=MINT(1) | |
15791 | ISUBSV=ISUB | |
15792 | IHIGG=1 | |
15793 | KFHIGG=25 | |
15794 | IF((ISUB.GE.151.AND.ISUB.LE.160).OR.(ISUB.GE.171.AND. | |
15795 | &ISUB.LE.190)) THEN | |
15796 | IHIGG=2 | |
15797 | IF(MOD(ISUB-1,10).GE.5) IHIGG=3 | |
15798 | KFHIGG=33+IHIGG | |
15799 | IF(ISUB.EQ.151.OR.ISUB.EQ.156) ISUB=3 | |
15800 | IF(ISUB.EQ.152.OR.ISUB.EQ.157) ISUB=102 | |
15801 | IF(ISUB.EQ.153.OR.ISUB.EQ.158) ISUB=103 | |
15802 | IF(ISUB.EQ.171.OR.ISUB.EQ.176) ISUB=24 | |
15803 | IF(ISUB.EQ.172.OR.ISUB.EQ.177) ISUB=26 | |
15804 | IF(ISUB.EQ.173.OR.ISUB.EQ.178) ISUB=123 | |
15805 | IF(ISUB.EQ.174.OR.ISUB.EQ.179) ISUB=124 | |
15806 | IF(ISUB.EQ.181.OR.ISUB.EQ.186) ISUB=121 | |
15807 | IF(ISUB.EQ.182.OR.ISUB.EQ.187) ISUB=122 | |
15808 | ENDIF | |
15809 | ||
15810 | CMRENNA++ | |
15811 | C...Convert almost equivalent SUSY processes into each other | |
15812 | C...Extract differences in flavours and couplings | |
15813 | IF(ISUB.GE.200.AND.ISUB.LE.280) THEN | |
15814 | ||
15815 | C...Sleptons and sneutrinos | |
15816 | IF(ISUB.EQ.201.OR.ISUB.EQ.204.OR.ISUB.EQ.207) THEN | |
15817 | KFID=MOD(KFPR(ISUB,1),KSUSY1) | |
15818 | ISUB=201 | |
15819 | ILR=0 | |
15820 | ELSEIF(ISUB.EQ.202.OR.ISUB.EQ.205.OR.ISUB.EQ.208) THEN | |
15821 | KFID=MOD(KFPR(ISUB,1),KSUSY1) | |
15822 | ISUB=201 | |
15823 | ILR=1 | |
15824 | ELSEIF(ISUB.EQ.203.OR.ISUB.EQ.206.OR.ISUB.EQ.209) THEN | |
15825 | KFID=MOD(KFPR(ISUB,1),KSUSY1) | |
15826 | ISUB=203 | |
15827 | ELSEIF(ISUB.GE.210.AND.ISUB.LE.212) THEN | |
15828 | IF(ISUB.EQ.210) THEN | |
15829 | RKF=2.0D0 | |
15830 | ELSEIF(ISUB.EQ.211) THEN | |
15831 | RKF=SFMIX(15,1)**2 | |
15832 | ELSEIF(ISUB.EQ.212) THEN | |
15833 | RKF=SFMIX(15,2)**2 | |
15834 | ENDIF | |
15835 | ISUB=210 | |
15836 | ELSEIF(ISUB.EQ.213.OR.ISUB.EQ.214) THEN | |
15837 | IF(ISUB.EQ.213) THEN | |
15838 | KFID=MOD(KFPR(ISUB,1),KSUSY1) | |
15839 | RKF=2.0D0 | |
15840 | ELSEIF(ISUB.EQ.214) THEN | |
15841 | KFID=16 | |
15842 | RKF=1.0D0 | |
15843 | ENDIF | |
15844 | ISUB=213 | |
15845 | ||
15846 | C...Neutralinos | |
15847 | ELSEIF(ISUB.GE.216.AND.ISUB.LE.225) THEN | |
15848 | IF(ISUB.EQ.216) THEN | |
15849 | IZID1=1 | |
15850 | IZID2=1 | |
15851 | ELSEIF(ISUB.EQ.217) THEN | |
15852 | IZID1=2 | |
15853 | IZID2=2 | |
15854 | ELSEIF(ISUB.EQ.218) THEN | |
15855 | IZID1=3 | |
15856 | IZID2=3 | |
15857 | ELSEIF(ISUB.EQ.219) THEN | |
15858 | IZID1=4 | |
15859 | IZID2=4 | |
15860 | ELSEIF(ISUB.EQ.220) THEN | |
15861 | IZID1=1 | |
15862 | IZID2=2 | |
15863 | ELSEIF(ISUB.EQ.221) THEN | |
15864 | IZID1=1 | |
15865 | IZID2=3 | |
15866 | ELSEIF(ISUB.EQ.222) THEN | |
15867 | IZID1=1 | |
15868 | IZID2=4 | |
15869 | ELSEIF(ISUB.EQ.223) THEN | |
15870 | IZID1=2 | |
15871 | IZID2=3 | |
15872 | ELSEIF(ISUB.EQ.224) THEN | |
15873 | IZID1=2 | |
15874 | IZID2=4 | |
15875 | ELSEIF(ISUB.EQ.225) THEN | |
15876 | IZID1=3 | |
15877 | IZID2=4 | |
15878 | ENDIF | |
15879 | ISUB=216 | |
15880 | ||
15881 | C...Charginos | |
15882 | ELSEIF(ISUB.GE.226.AND.ISUB.LE.228) THEN | |
15883 | IF(ISUB.EQ.226) THEN | |
15884 | IZID1=1 | |
15885 | IZID2=1 | |
15886 | ELSEIF(ISUB.EQ.227) THEN | |
15887 | IZID1=2 | |
15888 | IZID2=2 | |
15889 | ELSEIF(ISUB.EQ.228) THEN | |
15890 | IZID1=1 | |
15891 | IZID2=2 | |
15892 | ENDIF | |
15893 | ISUB=226 | |
15894 | ||
15895 | C...Neutralino + chargino | |
15896 | ELSEIF(ISUB.GE.229.AND.ISUB.LE.236) THEN | |
15897 | IF(ISUB.EQ.229) THEN | |
15898 | IZID1=1 | |
15899 | IZID2=1 | |
15900 | ELSEIF(ISUB.EQ.230) THEN | |
15901 | IZID1=1 | |
15902 | IZID2=2 | |
15903 | ELSEIF(ISUB.EQ.231) THEN | |
15904 | IZID1=1 | |
15905 | IZID2=3 | |
15906 | ELSEIF(ISUB.EQ.232) THEN | |
15907 | IZID1=1 | |
15908 | IZID2=4 | |
15909 | ELSEIF(ISUB.EQ.233) THEN | |
15910 | IZID1=2 | |
15911 | IZID2=1 | |
15912 | ELSEIF(ISUB.EQ.234) THEN | |
15913 | IZID1=2 | |
15914 | IZID2=2 | |
15915 | ELSEIF(ISUB.EQ.235) THEN | |
15916 | IZID1=2 | |
15917 | IZID2=3 | |
15918 | ELSEIF(ISUB.EQ.236) THEN | |
15919 | IZID1=2 | |
15920 | IZID2=4 | |
15921 | ENDIF | |
15922 | ISUB=229 | |
15923 | ||
15924 | C...Gluino + neutralino | |
15925 | ELSEIF(ISUB.GE.237.AND.ISUB.LE.240) THEN | |
15926 | IF(ISUB.EQ.237) THEN | |
15927 | IZID=1 | |
15928 | ELSEIF(ISUB.EQ.238) THEN | |
15929 | IZID=2 | |
15930 | ELSEIF(ISUB.EQ.239) THEN | |
15931 | IZID=3 | |
15932 | ELSEIF(ISUB.EQ.240) THEN | |
15933 | IZID=4 | |
15934 | ENDIF | |
15935 | ISUB=237 | |
15936 | ||
15937 | C...Gluino + chargino | |
15938 | ELSEIF(ISUB.GE.241.AND.ISUB.LE.242) THEN | |
15939 | IF(ISUB.EQ.241) THEN | |
15940 | IZID=1 | |
15941 | ELSEIF(ISUB.EQ.242) THEN | |
15942 | IZID=2 | |
15943 | ENDIF | |
15944 | ISUB=241 | |
15945 | ||
15946 | C...Squark + neutralino | |
15947 | ELSEIF(ISUB.GE.246.AND.ISUB.LE.253) THEN | |
15948 | ILR=0 | |
15949 | IF(MOD(ISUB,2).NE.0) ILR=1 | |
15950 | IF(ISUB.LE.247) THEN | |
15951 | IZID=1 | |
15952 | ELSEIF(ISUB.LE.249) THEN | |
15953 | IZID=2 | |
15954 | ELSEIF(ISUB.LE.251) THEN | |
15955 | IZID=3 | |
15956 | ELSEIF(ISUB.LE.253) THEN | |
15957 | IZID=4 | |
15958 | ENDIF | |
15959 | ISUB=246 | |
15960 | RKF=5D0 | |
15961 | ||
15962 | C...Squark + chargino | |
15963 | ELSEIF(ISUB.GE.254.AND.ISUB.LE.257) THEN | |
15964 | IF(ISUB.LE.255) THEN | |
15965 | IZID=1 | |
15966 | ELSEIF(ISUB.LE.257) THEN | |
15967 | IZID=2 | |
15968 | ENDIF | |
15969 | IF(MOD(ISUB,2).EQ.0) THEN | |
15970 | ILR=0 | |
15971 | ELSE | |
15972 | ILR=1 | |
15973 | ENDIF | |
15974 | ISUB=254 | |
15975 | RKF=5D0 | |
15976 | ||
15977 | C...Squark + gluino | |
15978 | ELSEIF(ISUB.EQ.258.OR.ISUB.EQ.259) THEN | |
15979 | ISUB=258 | |
15980 | RKF=5D0 | |
15981 | ||
15982 | C...Stops | |
15983 | ELSEIF(ISUB.EQ.261.OR.ISUB.EQ.262) THEN | |
15984 | ILR=0 | |
15985 | IF(ISUB.EQ.262) ILR=1 | |
15986 | ISUB=261 | |
15987 | ELSEIF(ISUB.EQ.265) THEN | |
15988 | ISUB=264 | |
15989 | ||
15990 | C...Squarks | |
15991 | ELSEIF(ISUB.GE.271.AND.ISUB.LE.280) THEN | |
15992 | ILR=0 | |
15993 | IF(ISUB.LE.273) THEN | |
15994 | IF(ISUB.EQ.273) ILR=1 | |
15995 | ISUB=271 | |
15996 | RKF=25D0 | |
15997 | ELSEIF(ISUB.LE.276) THEN | |
15998 | IF(ISUB.EQ.276) ILR=1 | |
15999 | ISUB=274 | |
16000 | RKF=25D0 | |
16001 | ELSEIF(ISUB.LE.278) THEN | |
16002 | IF(ISUB.EQ.278) ILR=1 | |
16003 | ISUB=277 | |
16004 | RKF=5D0 | |
16005 | ELSE | |
16006 | IF(ISUB.EQ.280) ILR=1 | |
16007 | ISUB=279 | |
16008 | RKF=5D0 | |
16009 | ENDIF | |
16010 | ENDIF | |
16011 | ENDIF | |
16012 | CMRENNA-- | |
16013 | ||
16014 | C...Read kinematical variables and limits | |
16015 | ISTSB=ISET(ISUBSV) | |
16016 | TAUMIN=VINT(11) | |
16017 | YSTMIN=VINT(12) | |
16018 | CTNMIN=VINT(13) | |
16019 | CTPMIN=VINT(14) | |
16020 | TAUPMN=VINT(16) | |
16021 | TAU=VINT(21) | |
16022 | YST=VINT(22) | |
16023 | CTH=VINT(23) | |
16024 | XT2=VINT(25) | |
16025 | TAUP=VINT(26) | |
16026 | TAUMAX=VINT(31) | |
16027 | YSTMAX=VINT(32) | |
16028 | CTNMAX=VINT(33) | |
16029 | CTPMAX=VINT(34) | |
16030 | TAUPMX=VINT(36) | |
16031 | ||
16032 | C...Derive kinematical quantities | |
16033 | TAUE=TAU | |
16034 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUE=TAUP | |
16035 | X(1)=SQRT(TAUE)*EXP(YST) | |
16036 | X(2)=SQRT(TAUE)*EXP(-YST) | |
16037 | IF(MINT(45).EQ.2.AND.ISTSB.GE.1) THEN | |
16038 | IF(X(1).GT.0.9999D0) RETURN | |
16039 | ELSEIF(MINT(45).EQ.3) THEN | |
16040 | X(1)=MIN(0.9999989D0,X(1)) | |
16041 | ENDIF | |
16042 | IF(MINT(46).EQ.2.AND.ISTSB.GE.1) THEN | |
16043 | IF(X(2).GT.0.9999D0) RETURN | |
16044 | ELSEIF(MINT(46).EQ.3) THEN | |
16045 | X(2)=MIN(0.9999989D0,X(2)) | |
16046 | ENDIF | |
16047 | SH=TAU*VINT(2) | |
16048 | SQM3=VINT(63) | |
16049 | SQM4=VINT(64) | |
16050 | RM3=SQM3/SH | |
16051 | RM4=SQM4/SH | |
16052 | BE34=SQRT(MAX(0D0,(1D0-RM3-RM4)**2-4D0*RM3*RM4)) | |
16053 | RPTS=4D0*VINT(71)**2/SH | |
16054 | BE34L=SQRT(MAX(0D0,(1D0-RM3-RM4)**2-4D0*RM3*RM4-RPTS)) | |
16055 | RM34=MAX(1D-20,2D0*RM3*RM4) | |
16056 | RSQM=1D0+RM34 | |
16057 | IF(2D0*VINT(71)**2/(VINT(21)*VINT(2)).LT.0.0001D0) RM34=MAX(RM34, | |
16058 | &2D0*VINT(71)**2/(VINT(21)*VINT(2))) | |
16059 | RTHM=(4D0*RM3*RM4+RPTS)/(1D0-RM3-RM4+BE34L) | |
16060 | IF(ISTSB.EQ.0) THEN | |
16061 | TH=VINT(45) | |
16062 | UH=-0.5D0*SH*MAX(RTHM,1D0-RM3-RM4+BE34*CTH) | |
16063 | SQPTH=MAX(VINT(71)**2,0.25D0*SH*BE34**2*VINT(59)**2) | |
16064 | ELSE | |
16065 | TH=-0.5D0*SH*MAX(RTHM,1D0-RM3-RM4-BE34*CTH) | |
16066 | UH=-0.5D0*SH*MAX(RTHM,1D0-RM3-RM4+BE34*CTH) | |
16067 | SQPTH=MAX(VINT(71)**2,0.25D0*SH*BE34**2*(1D0-CTH**2)) | |
16068 | ENDIF | |
16069 | SHR=SQRT(SH) | |
16070 | SH2=SH**2 | |
16071 | TH2=TH**2 | |
16072 | UH2=UH**2 | |
16073 | ||
16074 | C...Choice of Q2 scale: hard, parton distributions, parton showers | |
16075 | IF(ISTSB.EQ.1.OR.ISTSB.EQ.3.OR.ISTSB.EQ.5) THEN | |
16076 | Q2=SH | |
16077 | ELSEIF(MOD(ISTSB,2).EQ.0.OR.ISTSB.EQ.9) THEN | |
16078 | IF(MSTP(32).EQ.1) THEN | |
16079 | Q2=2D0*SH*TH*UH/(SH**2+TH**2+UH**2) | |
16080 | ELSEIF(MSTP(32).EQ.2) THEN | |
16081 | Q2=SQPTH+0.5D0*(SQM3+SQM4) | |
16082 | ELSEIF(MSTP(32).EQ.3) THEN | |
16083 | Q2=MIN(-TH,-UH) | |
16084 | ELSEIF(MSTP(32).EQ.4) THEN | |
16085 | Q2=SH | |
16086 | ELSEIF(MSTP(32).EQ.5) THEN | |
16087 | Q2=-TH | |
16088 | ENDIF | |
16089 | IF(ISTSB.EQ.9) Q2=SQPTH | |
16090 | IF((ISTSB.EQ.9.AND.MSTP(82).GE.2).OR.(ISTSB.NE.9.AND. | |
16091 | & MSTP(85).EQ.1)) Q2=Q2+PARP(82)**2 | |
16092 | ENDIF | |
16093 | Q2SF=Q2 | |
16094 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) THEN | |
16095 | Q2SF=PMAS(23,1)**2 | |
16096 | IF(ISUB.EQ.8.OR.ISUB.EQ.76.OR.ISUB.EQ.77.OR.ISUB.EQ.124) | |
16097 | & Q2SF=PMAS(24,1)**2 | |
16098 | IF(ISUB.EQ.121.OR.ISUB.EQ.122) THEN | |
16099 | Q2SF=PMAS(PYCOMP(KFPR(ISUBSV,2)),1)**2 | |
16100 | IF(MSTP(39).EQ.2) Q2SF=Q2SF+MAX(VINT(202),VINT(207)) | |
16101 | IF(MSTP(39).EQ.3) Q2SF=SH | |
16102 | IF(MSTP(39).EQ.4) Q2SF=VINT(26)*VINT(2) | |
16103 | ENDIF | |
16104 | ENDIF | |
16105 | Q2PS=Q2SF | |
16106 | Q2SF=Q2SF*PARP(34) | |
16107 | IF(MSTP(68).GE.2.AND.MINT(47).EQ.5) Q2SF=VINT(2) | |
16108 | IF(MSTP(22).GE.1.AND.(ISUB.EQ.10.OR.ISUB.EQ.83).AND. | |
16109 | &(MINT(43).EQ.2.OR.MINT(43).EQ.3)) THEN | |
16110 | XBJ=X(2) | |
16111 | IF(MINT(43).EQ.3) XBJ=X(1) | |
16112 | IF(MSTP(22).EQ.1) THEN | |
16113 | Q2PS=-TH | |
16114 | ELSEIF(MSTP(22).EQ.2) THEN | |
16115 | Q2PS=((1D0-XBJ)/XBJ)*(-TH) | |
16116 | ELSEIF(MSTP(22).EQ.3) THEN | |
16117 | Q2PS=SQRT((1D0-XBJ)/XBJ)*(-TH) | |
16118 | ELSE | |
16119 | Q2PS=(1D0-XBJ)*MAX(1D0,-LOG(XBJ))*(-TH) | |
16120 | ENDIF | |
16121 | ENDIF | |
16122 | IF(MSTP(68).GE.1.AND.MINT(47).EQ.5) Q2PS=VINT(2) | |
16123 | ||
16124 | C...Store derived kinematical quantities | |
16125 | VINT(41)=X(1) | |
16126 | VINT(42)=X(2) | |
16127 | VINT(44)=SH | |
16128 | VINT(43)=SQRT(SH) | |
16129 | VINT(45)=TH | |
16130 | VINT(46)=UH | |
16131 | VINT(48)=SQPTH | |
16132 | VINT(47)=SQRT(SQPTH) | |
16133 | VINT(50)=TAUP*VINT(2) | |
16134 | VINT(49)=SQRT(MAX(0D0,VINT(50))) | |
16135 | VINT(52)=Q2 | |
16136 | VINT(51)=SQRT(Q2) | |
16137 | VINT(54)=Q2SF | |
16138 | VINT(53)=SQRT(Q2SF) | |
16139 | VINT(56)=Q2PS | |
16140 | VINT(55)=SQRT(Q2PS) | |
16141 | ||
16142 | C...Calculate parton distributions | |
16143 | IF(ISTSB.LE.0) GOTO 170 | |
16144 | IF(MINT(47).GE.2) THEN | |
16145 | DO 110 I=3-MIN(2,MINT(45)),MIN(2,MINT(46)) | |
16146 | XSF=X(I) | |
16147 | IF(ISTSB.EQ.9) XSF=X(I)/VINT(142+I) | |
16148 | MINT(105)=MINT(102+I) | |
16149 | MINT(109)=MINT(106+I) | |
16150 | IF(MSTP(57).LE.1) THEN | |
16151 | CALL PYPDFU(MINT(10+I),XSF,Q2SF,XPQ) | |
16152 | ELSE | |
16153 | CALL PYPDFL(MINT(10+I),XSF,Q2SF,XPQ) | |
16154 | ENDIF | |
16155 | DO 100 KFL=-25,25 | |
16156 | XSFX(I,KFL)=XPQ(KFL) | |
16157 | 100 CONTINUE | |
16158 | 110 CONTINUE | |
16159 | ENDIF | |
16160 | ||
16161 | C...Calculate alpha_em, alpha_strong and K-factor | |
16162 | XW=PARU(102) | |
16163 | XWV=XW | |
16164 | IF(MSTP(8).GE.2.OR.(ISUB.GE.71.AND.ISUB.LE.77)) XW= | |
16165 | &1D0-(PMAS(24,1)/PMAS(23,1))**2 | |
16166 | XW1=1D0-XW | |
16167 | XWC=1D0/(16D0*XW*XW1) | |
16168 | AEM=PYALEM(Q2) | |
16169 | IF(MSTP(8).GE.1) AEM=SQRT(2D0)*PARU(105)*PMAS(24,1)**2*XW/PARU(1) | |
16170 | IF(MSTP(33).NE.3) AS=PYALPS(PARP(34)*Q2) | |
16171 | FACK=1D0 | |
16172 | FACA=1D0 | |
16173 | IF(MSTP(33).EQ.1) THEN | |
16174 | FACK=PARP(31) | |
16175 | ELSEIF(MSTP(33).EQ.2) THEN | |
16176 | FACK=PARP(31) | |
16177 | FACA=PARP(32)/PARP(31) | |
16178 | ELSEIF(MSTP(33).EQ.3) THEN | |
16179 | Q2AS=PARP(33)*Q2 | |
16180 | IF(ISTSB.EQ.9.AND.MSTP(82).GE.2) Q2AS=Q2AS+ | |
16181 | & PARU(112)*PARP(82) | |
16182 | AS=PYALPS(Q2AS) | |
16183 | ENDIF | |
16184 | VINT(138)=1D0 | |
16185 | VINT(57)=AEM | |
16186 | VINT(58)=AS | |
16187 | ||
16188 | C...Set flags for allowed reacting partons/leptons | |
16189 | DO 140 I=1,2 | |
16190 | DO 120 J=-25,25 | |
16191 | KFAC(I,J)=0 | |
16192 | 120 CONTINUE | |
16193 | IF(MINT(44+I).EQ.1) THEN | |
16194 | KFAC(I,MINT(10+I))=1 | |
16195 | ELSEIF(MINT(40+I).EQ.1.AND.MSTP(12).EQ.0) THEN | |
16196 | KFAC(I,MINT(10+I))=1 | |
16197 | KFAC(I,22)=1 | |
16198 | KFAC(I,24)=1 | |
16199 | KFAC(I,-24)=1 | |
16200 | ELSE | |
16201 | DO 130 J=-25,25 | |
16202 | KFAC(I,J)=KFIN(I,J) | |
16203 | IF(IABS(J).GT.MSTP(58).AND.IABS(J).LE.10) KFAC(I,J)=0 | |
16204 | IF(XSFX(I,J).LT.1D-10) KFAC(I,J)=0 | |
16205 | 130 CONTINUE | |
16206 | ENDIF | |
16207 | 140 CONTINUE | |
16208 | ||
16209 | C...Lower and upper limit for fermion flavour loops | |
16210 | MMIN1=0 | |
16211 | MMAX1=0 | |
16212 | MMIN2=0 | |
16213 | MMAX2=0 | |
16214 | DO 150 J=-20,20 | |
16215 | IF(KFAC(1,-J).EQ.1) MMIN1=-J | |
16216 | IF(KFAC(1,J).EQ.1) MMAX1=J | |
16217 | IF(KFAC(2,-J).EQ.1) MMIN2=-J | |
16218 | IF(KFAC(2,J).EQ.1) MMAX2=J | |
16219 | 150 CONTINUE | |
16220 | MMINA=MIN(MMIN1,MMIN2) | |
16221 | MMAXA=MAX(MMAX1,MMAX2) | |
16222 | ||
16223 | C...Common resonance mass and width combinations | |
16224 | SQMZ=PMAS(23,1)**2 | |
16225 | SQMW=PMAS(24,1)**2 | |
16226 | SQMH=PMAS(KFHIGG,1)**2 | |
16227 | GMMZ=PMAS(23,1)*PMAS(23,2) | |
16228 | GMMW=PMAS(24,1)*PMAS(24,2) | |
16229 | GMMH=PMAS(KFHIGG,1)*PMAS(KFHIGG,2) | |
16230 | C...MRENNA+++ | |
16231 | ZWID=PMAS(23,2) | |
16232 | WWID=PMAS(24,2) | |
16233 | TANW=SQRT(XW/XW1) | |
16234 | C...MRENNA--- | |
16235 | ||
16236 | C...Phase space integral in tau | |
16237 | COMFAC=PARU(1)*PARU(5)/VINT(2) | |
16238 | IF(MINT(41).EQ.2.AND.MINT(42).EQ.2) COMFAC=COMFAC*FACK | |
16239 | IF((MINT(47).GE.2.OR.(ISTSB.GE.3.AND.ISTSB.LE.5)).AND. | |
16240 | &ISTSB.NE.9) THEN | |
16241 | ATAU1=LOG(TAUMAX/TAUMIN) | |
16242 | ATAU2=(TAUMAX-TAUMIN)/(TAUMAX*TAUMIN) | |
16243 | H1=COEF(ISUBSV,1)+(ATAU1/ATAU2)*COEF(ISUBSV,2)/TAU | |
16244 | IF(MINT(72).GE.1) THEN | |
16245 | TAUR1=VINT(73) | |
16246 | GAMR1=VINT(74) | |
16247 | ATAUD=LOG(TAUMAX/TAUMIN*(TAUMIN+TAUR1)/(TAUMAX+TAUR1)) | |
16248 | ATAU3=ATAUD/TAUR1 | |
16249 | IF(ATAUD.GT.1D-6) H1=H1+ | |
16250 | & (ATAU1/ATAU3)*COEF(ISUBSV,3)/(TAU+TAUR1) | |
16251 | ATAUD=ATAN((TAUMAX-TAUR1)/GAMR1)-ATAN((TAUMIN-TAUR1)/GAMR1) | |
16252 | ATAU4=ATAUD/GAMR1 | |
16253 | IF(ATAUD.GT.1D-6) H1=H1+ | |
16254 | & (ATAU1/ATAU4)*COEF(ISUBSV,4)*TAU/((TAU-TAUR1)**2+GAMR1**2) | |
16255 | ENDIF | |
16256 | IF(MINT(72).EQ.2) THEN | |
16257 | TAUR2=VINT(75) | |
16258 | GAMR2=VINT(76) | |
16259 | ATAUD=LOG(TAUMAX/TAUMIN*(TAUMIN+TAUR2)/(TAUMAX+TAUR2)) | |
16260 | ATAU5=ATAUD/TAUR2 | |
16261 | IF(ATAUD.GT.1D-6) H1=H1+ | |
16262 | & (ATAU1/ATAU5)*COEF(ISUBSV,5)/(TAU+TAUR2) | |
16263 | ATAUD=ATAN((TAUMAX-TAUR2)/GAMR2)-ATAN((TAUMIN-TAUR2)/GAMR2) | |
16264 | ATAU6=ATAUD/GAMR2 | |
16265 | IF(ATAUD.GT.1D-6) H1=H1+ | |
16266 | & (ATAU1/ATAU6)*COEF(ISUBSV,6)*TAU/((TAU-TAUR2)**2+GAMR2**2) | |
16267 | ENDIF | |
16268 | IF(MINT(47).EQ.5.AND.(ISTSB.LE.2.OR.ISTSB.GE.5)) THEN | |
16269 | ATAU7=LOG(MAX(2D-6,1D0-TAUMIN)/MAX(2D-6,1D0-TAUMAX)) | |
16270 | IF(ATAU7.GT.1D-6) H1=H1+(ATAU1/ATAU7)*COEF(ISUBSV,7)*TAU/ | |
16271 | & MAX(2D-6,1D0-TAU) | |
16272 | ENDIF | |
16273 | COMFAC=COMFAC*ATAU1/(TAU*H1) | |
16274 | ENDIF | |
16275 | ||
16276 | C...Phase space integral in y* | |
16277 | IF(MINT(47).GE.4.AND.ISTSB.NE.9) THEN | |
16278 | AYST0=YSTMAX-YSTMIN | |
16279 | IF(AYST0.LT.1D-6) THEN | |
16280 | COMFAC=0D0 | |
16281 | ELSE | |
16282 | AYST1=0.5D0*(YSTMAX-YSTMIN)**2 | |
16283 | AYST2=AYST1 | |
16284 | AYST3=2D0*(ATAN(EXP(YSTMAX))-ATAN(EXP(YSTMIN))) | |
16285 | H2=(AYST0/AYST1)*COEF(ISUBSV,8)*(YST-YSTMIN)+ | |
16286 | & (AYST0/AYST2)*COEF(ISUBSV,9)*(YSTMAX-YST)+ | |
16287 | & (AYST0/AYST3)*COEF(ISUBSV,10)/COSH(YST) | |
16288 | IF(MINT(45).EQ.3) THEN | |
16289 | YST0=-0.5D0*LOG(TAUE) | |
16290 | AYST4=LOG(MAX(1D-6,EXP(YST0-YSTMIN)-1D0)/ | |
16291 | & MAX(1D-6,EXP(YST0-YSTMAX)-1D0)) | |
16292 | IF(AYST4.GT.1D-6) H2=H2+(AYST0/AYST4)*COEF(ISUBSV,11)/ | |
16293 | & MAX(1D-6,1D0-EXP(YST-YST0)) | |
16294 | ENDIF | |
16295 | IF(MINT(46).EQ.3) THEN | |
16296 | YST0=-0.5D0*LOG(TAUE) | |
16297 | AYST5=LOG(MAX(1D-6,EXP(YST0+YSTMAX)-1D0)/ | |
16298 | & MAX(1D-6,EXP(YST0+YSTMIN)-1D0)) | |
16299 | IF(AYST5.GT.1D-6) H2=H2+(AYST0/AYST5)*COEF(ISUBSV,12)/ | |
16300 | & MAX(1D-6,1D0-EXP(-YST-YST0)) | |
16301 | ENDIF | |
16302 | COMFAC=COMFAC*AYST0/H2 | |
16303 | ENDIF | |
16304 | ENDIF | |
16305 | ||
16306 | C...2 -> 1 processes: reduction in angular part of phase space integral | |
16307 | C...for case of decaying resonance | |
16308 | ACTH0=CTNMAX-CTNMIN+CTPMAX-CTPMIN | |
16309 | IF((ISTSB.EQ.1.OR.ISTSB.EQ.3.OR.ISTSB.EQ.5)) THEN | |
16310 | IF(MDCY(PYCOMP(KFPR(ISUBSV,1)),1).EQ.1) THEN | |
16311 | IF(KFPR(ISUB,1).EQ.25.OR.KFPR(ISUB,1).EQ.37.OR. | |
16312 | & KFPR(ISUB,1).EQ.39) THEN | |
16313 | COMFAC=COMFAC*0.5D0*ACTH0 | |
16314 | ELSE | |
16315 | COMFAC=COMFAC*0.125D0*(3D0*ACTH0+CTNMAX**3-CTNMIN**3+ | |
16316 | & CTPMAX**3-CTPMIN**3) | |
16317 | ENDIF | |
16318 | ENDIF | |
16319 | ||
16320 | C...2 -> 2 processes: angular part of phase space integral | |
16321 | ELSEIF(ISTSB.EQ.2.OR.ISTSB.EQ.4) THEN | |
16322 | ACTH1=LOG((MAX(RM34,RSQM-CTNMIN)*MAX(RM34,RSQM-CTPMIN))/ | |
16323 | & (MAX(RM34,RSQM-CTNMAX)*MAX(RM34,RSQM-CTPMAX))) | |
16324 | ACTH2=LOG((MAX(RM34,RSQM+CTNMAX)*MAX(RM34,RSQM+CTPMAX))/ | |
16325 | & (MAX(RM34,RSQM+CTNMIN)*MAX(RM34,RSQM+CTPMIN))) | |
16326 | ACTH3=1D0/MAX(RM34,RSQM-CTNMAX)-1D0/MAX(RM34,RSQM-CTNMIN)+ | |
16327 | & 1D0/MAX(RM34,RSQM-CTPMAX)-1D0/MAX(RM34,RSQM-CTPMIN) | |
16328 | ACTH4=1D0/MAX(RM34,RSQM+CTNMIN)-1D0/MAX(RM34,RSQM+CTNMAX)+ | |
16329 | & 1D0/MAX(RM34,RSQM+CTPMIN)-1D0/MAX(RM34,RSQM+CTPMAX) | |
16330 | H3=COEF(ISUBSV,13)+ | |
16331 | & (ACTH0/ACTH1)*COEF(ISUBSV,14)/MAX(RM34,RSQM-CTH)+ | |
16332 | & (ACTH0/ACTH2)*COEF(ISUBSV,15)/MAX(RM34,RSQM+CTH)+ | |
16333 | & (ACTH0/ACTH3)*COEF(ISUBSV,16)/MAX(RM34,RSQM-CTH)**2+ | |
16334 | & (ACTH0/ACTH4)*COEF(ISUBSV,17)/MAX(RM34,RSQM+CTH)**2 | |
16335 | COMFAC=COMFAC*ACTH0*0.5D0*BE34/H3 | |
16336 | ||
16337 | C...2 -> 2 processes: take into account final state Breit-Wigners | |
16338 | COMFAC=COMFAC*VINT(80) | |
16339 | ENDIF | |
16340 | ||
16341 | C...2 -> 3, 4 processes: phace space integral in tau' | |
16342 | IF(MINT(47).GE.2.AND.ISTSB.GE.3.AND.ISTSB.LE.5) THEN | |
16343 | ATAUP1=LOG(TAUPMX/TAUPMN) | |
16344 | ATAUP2=((1D0-TAU/TAUPMX)**4-(1D0-TAU/TAUPMN)**4)/(4D0*TAU) | |
16345 | H4=COEF(ISUBSV,18)+ | |
16346 | & (ATAUP1/ATAUP2)*COEF(ISUBSV,19)*(1D0-TAU/TAUP)**3/TAUP | |
16347 | IF(MINT(47).EQ.5) THEN | |
16348 | ATAUP3=LOG(MAX(2D-6,1D0-TAUPMN)/MAX(2D-6,1D0-TAUPMX)) | |
16349 | H4=H4+(ATAUP1/ATAUP3)*COEF(ISUBSV,20)*TAUP/MAX(2D-6,1D0-TAUP) | |
16350 | ENDIF | |
16351 | COMFAC=COMFAC*ATAUP1/H4 | |
16352 | ENDIF | |
16353 | ||
16354 | C...2 -> 3, 4 processes: effective W/Z parton distributions | |
16355 | IF(ISTSB.EQ.3.OR.ISTSB.EQ.4) THEN | |
16356 | IF(1D0-TAU/TAUP.GT.1.D-4) THEN | |
16357 | FZW=(1D0+TAU/TAUP)*LOG(TAUP/TAU)-2D0*(1D0-TAU/TAUP) | |
16358 | ELSE | |
16359 | FZW=1D0/6D0*(1D0-TAU/TAUP)**3*TAU/TAUP | |
16360 | ENDIF | |
16361 | COMFAC=COMFAC*FZW | |
16362 | ENDIF | |
16363 | ||
16364 | C...2 -> 3 processes: phase space integrals for pT1, pT2, y3, mirror | |
16365 | IF(ISTSB.EQ.5) THEN | |
16366 | COMFAC=COMFAC*VINT(205)*VINT(210)*VINT(212)*VINT(214)/ | |
16367 | & (128D0*PARU(1)**4*VINT(220))*(TAU**2/TAUP) | |
16368 | ENDIF | |
16369 | ||
16370 | C...2 -> 2 processes: optional dampening by pT^4/(pT0^2+pT^2)^2 | |
16371 | IF(MSTP(85).EQ.1.AND.MOD(ISTSB,2).EQ.0) COMFAC=COMFAC* | |
16372 | &SQPTH**2/(PARP(82)**2+SQPTH)**2 | |
16373 | ||
16374 | C...gamma + gamma: include factor 2 when different nature | |
16375 | IF(MINT(11).EQ.22.AND.MINT(12).EQ.22.AND.MINT(123).GE.4) | |
16376 | &COMFAC=2D0*COMFAC | |
16377 | ||
16378 | C...Phase space integral for low-pT and multiple interactions | |
16379 | IF(ISTSB.EQ.9) THEN | |
16380 | COMFAC=PARU(1)*PARU(5)*FACK*0.5D0*VINT(2)/SH2 | |
16381 | ATAU1=LOG(2D0*(1D0+SQRT(1D0-XT2))/XT2-1D0) | |
16382 | ATAU2=2D0*ATAN(1D0/XT2-1D0)/SQRT(XT2) | |
16383 | H1=COEF(ISUBSV,1)+(ATAU1/ATAU2)*COEF(ISUBSV,2)/SQRT(TAU) | |
16384 | COMFAC=COMFAC*ATAU1/H1 | |
16385 | AYST0=YSTMAX-YSTMIN | |
16386 | AYST1=0.5D0*(YSTMAX-YSTMIN)**2 | |
16387 | AYST3=2D0*(ATAN(EXP(YSTMAX))-ATAN(EXP(YSTMIN))) | |
16388 | H2=(AYST0/AYST1)*COEF(ISUBSV,8)*(YST-YSTMIN)+ | |
16389 | & (AYST0/AYST1)*COEF(ISUBSV,9)*(YSTMAX-YST)+ | |
16390 | & (AYST0/AYST3)*COEF(ISUBSV,10)/COSH(YST) | |
16391 | COMFAC=COMFAC*AYST0/H2 | |
16392 | IF(MSTP(82).LE.1) COMFAC=COMFAC*XT2**2*(1D0/VINT(149)-1D0) | |
16393 | C...For MSTP(82)>=2 an additional factor (xT2/(xT2+VINT(149))**2 is | |
16394 | C...introduced to make cross-section finite for xT2 -> 0 | |
16395 | IF(MSTP(82).GE.2) COMFAC=COMFAC*XT2**2/(VINT(149)* | |
16396 | & (1D0+VINT(149))) | |
16397 | ENDIF | |
16398 | ||
16399 | C...Strongly interacting Z_L/W_L model of Dobado, Herrero, Terron | |
16400 | IF((MSTP(46).GE.3.AND.MSTP(46).LE.6).AND.(ISUB.EQ.71.OR.ISUB.EQ. | |
16401 | &72.OR.ISUB.EQ.73.OR.ISUB.EQ.76.OR.ISUB.EQ.77)) THEN | |
16402 | C...Calculate M_R and N_R functions for Higgs-like and QCD-like models | |
16403 | IF(MSTP(46).LE.4) THEN | |
16404 | HDTLH=LOG(PMAS(25,1)/PARP(44)) | |
16405 | HDTMR=(4.5D0*PARU(1)/SQRT(3D0)-74D0/9D0)/8D0+HDTLH/12D0 | |
16406 | HDTNR=-1D0/18D0+HDTLH/6D0 | |
16407 | ELSE | |
16408 | HDTNM=0.125D0*(1D0/(288D0*PARU(1)**2)+(PARP(47)/PARP(45))**2) | |
16409 | HDTLQ=LOG(PARP(45)/PARP(44)) | |
16410 | HDTMR=-(4D0*PARU(1))**2*0.5D0*HDTNM+HDTLQ/12D0 | |
16411 | HDTNR=(4D0*PARU(1))**2*HDTNM+HDTLQ/6D0 | |
16412 | ENDIF | |
16413 | ||
16414 | C...Calculate lowest and next-to-lowest order partial wave amplitudes | |
16415 | HDTV=1D0/(16D0*PARU(1)*PARP(47)**2) | |
16416 | A00L=SNGL(HDTV*SH) | |
16417 | A20L=-0.5*A00L | |
16418 | A11L=A00L/6. | |
16419 | HDTLS=LOG(SH/PARP(44)**2) | |
16420 | A004=SNGL((HDTV*SH)**2/(4D0*PARU(1)))* | |
16421 | & CMPLX(SNGL((176D0*HDTMR+112D0*HDTNR)/3D0+11D0/27D0- | |
16422 | & (50D0/9D0)*HDTLS),SNGL(4D0*PARU(1))) | |
16423 | A204=SNGL((HDTV*SH)**2/(4D0*PARU(1)))* | |
16424 | & CMPLX(SNGL(32D0*(HDTMR+2D0*HDTNR)/3D0+25D0/54D0- | |
16425 | & (20D0/9D0)*HDTLS),SNGL(PARU(1))) | |
16426 | A114=SNGL((HDTV*SH)**2/(6D0*PARU(1)))* | |
16427 | & CMPLX(SNGL(4D0*(-2D0*HDTMR+HDTNR)-1D0/18D0),SNGL(PARU(1)/6D0)) | |
16428 | ||
16429 | C...Unitarize partial wave amplitudes with Pade or K-matrix method | |
16430 | IF(MSTP(46).EQ.3.OR.MSTP(46).EQ.5) THEN | |
16431 | A00U=A00L/(1.-A004/A00L) | |
16432 | A20U=A20L/(1.-A204/A20L) | |
16433 | A11U=A11L/(1.-A114/A11L) | |
16434 | ELSE | |
16435 | A00U=(A00L+REAL(A004))/(1.-CMPLX(0.,A00L+REAL(A004))) | |
16436 | A20U=(A20L+REAL(A204))/(1.-CMPLX(0.,A20L+REAL(A204))) | |
16437 | A11U=(A11L+REAL(A114))/(1.-CMPLX(0.,A11L+REAL(A114))) | |
16438 | ENDIF | |
16439 | ENDIF | |
16440 | ||
16441 | C...Supersymmetric processes - all of type 2 -> 2 : | |
16442 | C...correct final-state Breit-Wigners from fixed to running width. | |
16443 | IF(ISUB.GE.200.AND.ISUB.LE.280.AND.MSTP(42).GT.0) THEN | |
16444 | DO 160 I=1,2 | |
16445 | KFLW=KFPR(ISUBSV,I) | |
16446 | KCW=PYCOMP(KFLW) | |
16447 | IF(PMAS(KCW,2).LT.PARP(41)) GOTO 160 | |
16448 | IF(I.EQ.1) SQMI=SQM3 | |
16449 | IF(I.EQ.2) SQMI=SQM4 | |
16450 | SQMS=PMAS(KCW,1)**2 | |
16451 | GMMS=PMAS(KCW,1)*PMAS(KCW,2) | |
16452 | HBWS=GMMS/((SQMI-SQMS)**2+GMMS**2) | |
16453 | CALL PYWIDT(KFLW,SQMI,WDTP,WDTE) | |
16454 | GMMI=SQRT(SQMI)*WDTP(0) | |
16455 | HBWI=GMMI/((SQMI-SQMS)**2+GMMI**2) | |
16456 | COMFAC=COMFAC*(HBWI/HBWS) | |
16457 | 160 CONTINUE | |
16458 | ENDIF | |
16459 | ||
16460 | C...A: 2 -> 1, tree diagrams | |
16461 | ||
16462 | 170 IF(ISUB.LE.10) THEN | |
16463 | IF(ISUB.EQ.1) THEN | |
16464 | C...f + fbar -> gamma*/Z0 | |
16465 | MINT(61)=2 | |
16466 | CALL PYWIDT(23,SH,WDTP,WDTE) | |
16467 | HS=SHR*WDTP(0) | |
16468 | FACZ=4D0*COMFAC*3D0 | |
16469 | HP0=AEM/3D0*SH | |
16470 | HP1=AEM/3D0*XWC*SH | |
16471 | DO 180 I=MMINA,MMAXA | |
16472 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 180 | |
16473 | EI=KCHG(IABS(I),1)/3D0 | |
16474 | AI=SIGN(1D0,EI) | |
16475 | VI=AI-4D0*EI*XWV | |
16476 | HI0=HP0 | |
16477 | IF(IABS(I).LE.10) HI0=HI0*FACA/3D0 | |
16478 | HI1=HP1 | |
16479 | IF(IABS(I).LE.10) HI1=HI1*FACA/3D0 | |
16480 | NCHN=NCHN+1 | |
16481 | ISIG(NCHN,1)=I | |
16482 | ISIG(NCHN,2)=-I | |
16483 | ISIG(NCHN,3)=1 | |
16484 | SIGH(NCHN)=FACZ*(EI**2/SH2*HI0*HP0*VINT(111)+ | |
16485 | & EI*VI*(1D0-SQMZ/SH)/((SH-SQMZ)**2+HS**2)* | |
16486 | & (HI0*HP1+HI1*HP0)*VINT(112)+(VI**2+AI**2)/ | |
16487 | & ((SH-SQMZ)**2+HS**2)*HI1*HP1*VINT(114)) | |
16488 | 180 CONTINUE | |
16489 | ||
16490 | ELSEIF(ISUB.EQ.2) THEN | |
16491 | C...f + fbar' -> W+/- | |
16492 | CALL PYWIDT(24,SH,WDTP,WDTE) | |
16493 | HS=SHR*WDTP(0) | |
16494 | FACBW=4D0*COMFAC/((SH-SQMW)**2+HS**2)*3D0 | |
16495 | HP=AEM/(24D0*XW)*SH | |
16496 | DO 200 I=MMIN1,MMAX1 | |
16497 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 200 | |
16498 | IA=IABS(I) | |
16499 | DO 190 J=MMIN2,MMAX2 | |
16500 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 190 | |
16501 | JA=IABS(J) | |
16502 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 190 | |
16503 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
16504 | & GOTO 190 | |
16505 | KCHW=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
16506 | HI=HP*2D0 | |
16507 | IF(IA.LE.10) HI=HI*VCKM((IA+1)/2,(JA+1)/2)*FACA/3D0 | |
16508 | NCHN=NCHN+1 | |
16509 | ISIG(NCHN,1)=I | |
16510 | ISIG(NCHN,2)=J | |
16511 | ISIG(NCHN,3)=1 | |
16512 | HF=SHR*(WDTE(0,1)+WDTE(0,(5-KCHW)/2)+WDTE(0,4)) | |
16513 | SIGH(NCHN)=HI*FACBW*HF | |
16514 | 190 CONTINUE | |
16515 | 200 CONTINUE | |
16516 | ||
16517 | ELSEIF(ISUB.EQ.3) THEN | |
16518 | C...f + fbar -> h0 (or H0, or A0) | |
16519 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
16520 | HS=SHR*WDTP(0) | |
16521 | FACBW=4D0*COMFAC/((SH-SQMH)**2+HS**2) | |
16522 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
16523 | & FACBW=0D0 | |
16524 | HP=AEM/(8D0*XW)*SH/SQMW*SH | |
16525 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
16526 | DO 210 I=MMINA,MMAXA | |
16527 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 210 | |
16528 | IA=IABS(I) | |
16529 | RMQ=PMAS(IA,1)**2/SH | |
16530 | HI=HP*RMQ | |
16531 | IF(IA.LE.10) HI=HP*RMQ*FACA/3D0 | |
16532 | IF(IA.LE.10.AND.MSTP(37).EQ.1.AND.MSTP(2).GE.1) HI=HI* | |
16533 | & (LOG(MAX(4D0,PARP(37)**2*RMQ*SH/PARU(117)**2))/ | |
16534 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0-2D0*MSTU(118))) | |
16535 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
16536 | IKFI=1 | |
16537 | IF(IA.LE.10.AND.MOD(IA,2).EQ.0) IKFI=2 | |
16538 | IF(IA.GT.10) IKFI=3 | |
16539 | HI=HI*PARU(150+10*IHIGG+IKFI)**2 | |
16540 | ENDIF | |
16541 | NCHN=NCHN+1 | |
16542 | ISIG(NCHN,1)=I | |
16543 | ISIG(NCHN,2)=-I | |
16544 | ISIG(NCHN,3)=1 | |
16545 | SIGH(NCHN)=HI*FACBW*HF | |
16546 | 210 CONTINUE | |
16547 | ||
16548 | ELSEIF(ISUB.EQ.4) THEN | |
16549 | C...gamma + W+/- -> W+/- | |
16550 | ||
16551 | ELSEIF(ISUB.EQ.5) THEN | |
16552 | C...Z0 + Z0 -> h0 | |
16553 | CALL PYWIDT(25,SH,WDTP,WDTE) | |
16554 | HS=SHR*WDTP(0) | |
16555 | FACBW=4D0*COMFAC/((SH-SQMH)**2+HS**2) | |
16556 | IF(ABS(SHR-PMAS(25,1)).GT.PARP(48)*PMAS(25,2)) FACBW=0D0 | |
16557 | HP=AEM/(8D0*XW)*SH/SQMW*SH | |
16558 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
16559 | HI=HP/4D0 | |
16560 | FACI=8D0/(PARU(1)**2*XW1)*(AEM*XWC)**2 | |
16561 | DO 230 I=MMIN1,MMAX1 | |
16562 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 230 | |
16563 | DO 220 J=MMIN2,MMAX2 | |
16564 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 220 | |
16565 | EI=KCHG(IABS(I),1)/3D0 | |
16566 | AI=SIGN(1D0,EI) | |
16567 | VI=AI-4D0*EI*XWV | |
16568 | EJ=KCHG(IABS(J),1)/3D0 | |
16569 | AJ=SIGN(1D0,EJ) | |
16570 | VJ=AJ-4D0*EJ*XWV | |
16571 | NCHN=NCHN+1 | |
16572 | ISIG(NCHN,1)=I | |
16573 | ISIG(NCHN,2)=J | |
16574 | ISIG(NCHN,3)=1 | |
16575 | SIGH(NCHN)=FACI*(VI**2+AI**2)*(VJ**2+AJ**2)*HI*FACBW*HF | |
16576 | 220 CONTINUE | |
16577 | 230 CONTINUE | |
16578 | ||
16579 | ELSEIF(ISUB.EQ.6) THEN | |
16580 | C...Z0 + W+/- -> W+/- | |
16581 | ||
16582 | ELSEIF(ISUB.EQ.7) THEN | |
16583 | C...W+ + W- -> Z0 | |
16584 | ||
16585 | ELSEIF(ISUB.EQ.8) THEN | |
16586 | C...W+ + W- -> h0 | |
16587 | CALL PYWIDT(25,SH,WDTP,WDTE) | |
16588 | HS=SHR*WDTP(0) | |
16589 | FACBW=4D0*COMFAC/((SH-SQMH)**2+HS**2) | |
16590 | IF(ABS(SHR-PMAS(25,1)).GT.PARP(48)*PMAS(25,2)) FACBW=0D0 | |
16591 | HP=AEM/(8D0*XW)*SH/SQMW*SH | |
16592 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
16593 | HI=HP/2D0 | |
16594 | FACI=1D0/(4D0*PARU(1)**2)*(AEM/XW)**2 | |
16595 | DO 250 I=MMIN1,MMAX1 | |
16596 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 250 | |
16597 | EI=SIGN(1D0,DBLE(I))*KCHG(IABS(I),1) | |
16598 | DO 240 J=MMIN2,MMAX2 | |
16599 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 240 | |
16600 | EJ=SIGN(1D0,DBLE(J))*KCHG(IABS(J),1) | |
16601 | IF(EI*EJ.GT.0D0) GOTO 240 | |
16602 | NCHN=NCHN+1 | |
16603 | ISIG(NCHN,1)=I | |
16604 | ISIG(NCHN,2)=J | |
16605 | ISIG(NCHN,3)=1 | |
16606 | SIGH(NCHN)=FACI*VINT(180+I)*VINT(180+J)*HI*FACBW*HF | |
16607 | 240 CONTINUE | |
16608 | 250 CONTINUE | |
16609 | ||
16610 | C...B: 2 -> 2, tree diagrams | |
16611 | ||
16612 | ELSEIF(ISUB.EQ.10) THEN | |
16613 | C...f + f' -> f + f' (gamma/Z/W exchange) | |
16614 | FACGGF=COMFAC*AEM**2*2D0*(SH2+UH2)/TH2 | |
16615 | FACGZF=COMFAC*AEM**2*XWC*4D0*SH2/(TH*(TH-SQMZ)) | |
16616 | FACZZF=COMFAC*(AEM*XWC)**2*2D0*SH2/(TH-SQMZ)**2 | |
16617 | FACWWF=COMFAC*(0.5D0*AEM/XW)**2*SH2/(TH-SQMW)**2 | |
16618 | DO 270 I=MMIN1,MMAX1 | |
16619 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 270 | |
16620 | IA=IABS(I) | |
16621 | DO 260 J=MMIN2,MMAX2 | |
16622 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 260 | |
16623 | JA=IABS(J) | |
16624 | C...Electroweak couplings | |
16625 | EI=KCHG(IA,1)*ISIGN(1,I)/3D0 | |
16626 | AI=SIGN(1D0,KCHG(IA,1)+0.5D0)*ISIGN(1,I) | |
16627 | VI=AI-4D0*EI*XWV | |
16628 | EJ=KCHG(JA,1)*ISIGN(1,J)/3D0 | |
16629 | AJ=SIGN(1D0,KCHG(JA,1)+0.5D0)*ISIGN(1,J) | |
16630 | VJ=AJ-4D0*EJ*XWV | |
16631 | EPSIJ=ISIGN(1,I*J) | |
16632 | C...gamma/Z exchange, only gamma exchange, or only Z exchange | |
16633 | IF(MSTP(21).GE.1.AND.MSTP(21).LE.4) THEN | |
16634 | IF(MSTP(21).EQ.1.OR.MSTP(21).EQ.4) THEN | |
16635 | FACNCF=FACGGF*EI**2*EJ**2+FACGZF*EI*EJ* | |
16636 | & (VI*VJ*(1D0+UH2/SH2)+AI*AJ*EPSIJ*(1D0-UH2/SH2))+ | |
16637 | & FACZZF*((VI**2+AI**2)*(VJ**2+AJ**2)*(1D0+UH2/SH2)+ | |
16638 | & 4D0*VI*VJ*AI*AJ*EPSIJ*(1D0-UH2/SH2)) | |
16639 | ELSEIF(MSTP(21).EQ.2) THEN | |
16640 | FACNCF=FACGGF*EI**2*EJ**2 | |
16641 | ELSE | |
16642 | FACNCF=FACZZF*((VI**2+AI**2)*(VJ**2+AJ**2)* | |
16643 | & (1D0+UH2/SH2)+4D0*VI*VJ*AI*AJ*EPSIJ*(1D0-UH2/SH2)) | |
16644 | ENDIF | |
16645 | NCHN=NCHN+1 | |
16646 | ISIG(NCHN,1)=I | |
16647 | ISIG(NCHN,2)=J | |
16648 | ISIG(NCHN,3)=1 | |
16649 | SIGH(NCHN)=FACNCF | |
16650 | ENDIF | |
16651 | C...W exchange | |
16652 | IF((MSTP(21).EQ.1.OR.MSTP(21).EQ.5).AND.AI*AJ.LT.0D0) THEN | |
16653 | FACCCF=FACWWF*VINT(180+I)*VINT(180+J) | |
16654 | IF(EPSIJ.LT.0D0) FACCCF=FACCCF*UH2/SH2 | |
16655 | IF(IA.GT.10.AND.MOD(IA,2).EQ.0) FACCCF=2D0*FACCCF | |
16656 | IF(JA.GT.10.AND.MOD(JA,2).EQ.0) FACCCF=2D0*FACCCF | |
16657 | NCHN=NCHN+1 | |
16658 | ISIG(NCHN,1)=I | |
16659 | ISIG(NCHN,2)=J | |
16660 | ISIG(NCHN,3)=2 | |
16661 | SIGH(NCHN)=FACCCF | |
16662 | ENDIF | |
16663 | 260 CONTINUE | |
16664 | 270 CONTINUE | |
16665 | ENDIF | |
16666 | ||
16667 | ELSEIF(ISUB.LE.20) THEN | |
16668 | IF(ISUB.EQ.11) THEN | |
16669 | C...f + f' -> f + f' (g exchange) | |
16670 | FACQQ1=COMFAC*AS**2*4D0/9D0*(SH2+UH2)/TH2 | |
16671 | FACQQB=COMFAC*AS**2*4D0/9D0*((SH2+UH2)/TH2*FACA- | |
16672 | & MSTP(34)*2D0/3D0*UH2/(SH*TH)) | |
16673 | FACQQ2=COMFAC*AS**2*4D0/9D0*((SH2+TH2)/UH2- | |
16674 | & MSTP(34)*2D0/3D0*SH2/(TH*UH)) | |
16675 | IF(MSTP(5).GE.1) THEN | |
16676 | C...Modifications from contact interactions (compositeness) | |
16677 | FACCI1=FACQQ1+COMFAC*(SH2/PARU(155)**4) | |
16678 | FACCIB=FACQQB+COMFAC*(8D0/9D0)*(AS*PARU(156)/PARU(155)**2)* | |
16679 | & (UH2/TH+UH2/SH)+COMFAC*(5D0/3D0)*(UH2/PARU(155)**4) | |
16680 | FACCI2=FACQQ2+COMFAC*(8D0/9D0)*(AS*PARU(156)/PARU(155)**2)* | |
16681 | & (SH2/TH+SH2/UH)+COMFAC*(5D0/3D0)*(SH2/PARU(155)**4) | |
16682 | FACCI3=FACQQ1+COMFAC*(UH2/PARU(155)**4) | |
16683 | ENDIF | |
16684 | DO 290 I=MMIN1,MMAX1 | |
16685 | IA=IABS(I) | |
16686 | IF(I.EQ.0.OR.IA.GT.MSTP(58).OR.KFAC(1,I).EQ.0) GOTO 290 | |
16687 | DO 280 J=MMIN2,MMAX2 | |
16688 | JA=IABS(J) | |
16689 | IF(J.EQ.0.OR.JA.GT.MSTP(58).OR.KFAC(2,J).EQ.0) GOTO 280 | |
16690 | NCHN=NCHN+1 | |
16691 | ISIG(NCHN,1)=I | |
16692 | ISIG(NCHN,2)=J | |
16693 | ISIG(NCHN,3)=1 | |
16694 | IF(MSTP(5).LE.0.OR.(MSTP(5).EQ.1.AND.(IA.GE.3.OR. | |
16695 | & JA.GE.3))) THEN | |
16696 | SIGH(NCHN)=FACQQ1 | |
16697 | IF(I.EQ.-J) SIGH(NCHN)=FACQQB | |
16698 | ELSE | |
16699 | SIGH(NCHN)=FACCI1 | |
16700 | IF(I*J.LT.0) SIGH(NCHN)=FACCI3 | |
16701 | IF(I.EQ.-J) SIGH(NCHN)=FACCIB | |
16702 | ENDIF | |
16703 | IF(I.EQ.J) THEN | |
16704 | SIGH(NCHN)=0.5D0*SIGH(NCHN) | |
16705 | NCHN=NCHN+1 | |
16706 | ISIG(NCHN,1)=I | |
16707 | ISIG(NCHN,2)=J | |
16708 | ISIG(NCHN,3)=2 | |
16709 | IF(MSTP(5).LE.0.OR.(MSTP(5).EQ.1.AND.IA.GE.3)) THEN | |
16710 | SIGH(NCHN)=0.5D0*FACQQ2 | |
16711 | ELSE | |
16712 | SIGH(NCHN)=0.5D0*FACCI2 | |
16713 | ENDIF | |
16714 | ENDIF | |
16715 | 280 CONTINUE | |
16716 | 290 CONTINUE | |
16717 | ||
16718 | ELSEIF(ISUB.EQ.12) THEN | |
16719 | C...f + fbar -> f' + fbar' (q + qbar -> q' + qbar' only) | |
16720 | CALL PYWIDT(21,SH,WDTP,WDTE) | |
16721 | FACQQB=COMFAC*AS**2*4D0/9D0*(TH2+UH2)/SH2* | |
16722 | & (WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
16723 | IF(MSTP(5).EQ.1) THEN | |
16724 | C...Modifications from contact interactions (compositeness) | |
16725 | FACCIB=FACQQB | |
16726 | DO 300 I=1,2 | |
16727 | FACCIB=FACCIB+COMFAC*(UH2/PARU(155)**4)*(WDTE(I,1)+ | |
16728 | & WDTE(I,2)+WDTE(I,4)) | |
16729 | 300 CONTINUE | |
16730 | ELSEIF(MSTP(5).GE.2) THEN | |
16731 | FACCIB=FACQQB+COMFAC*(UH2/PARU(155)**4)* | |
16732 | & (WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
16733 | ENDIF | |
16734 | DO 310 I=MMINA,MMAXA | |
16735 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
16736 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 310 | |
16737 | NCHN=NCHN+1 | |
16738 | ISIG(NCHN,1)=I | |
16739 | ISIG(NCHN,2)=-I | |
16740 | ISIG(NCHN,3)=1 | |
16741 | IF(MSTP(5).LE.0.OR.(MSTP(5).EQ.1.AND.IABS(I).GE.3)) THEN | |
16742 | SIGH(NCHN)=FACQQB | |
16743 | ELSE | |
16744 | SIGH(NCHN)=FACCIB | |
16745 | ENDIF | |
16746 | 310 CONTINUE | |
16747 | ||
16748 | ELSEIF(ISUB.EQ.13) THEN | |
16749 | C...f + fbar -> g + g (q + qbar -> g + g only) | |
16750 | FACGG1=COMFAC*AS**2*32D0/27D0*(UH/TH-(2D0+MSTP(34)*1D0/4D0)* | |
16751 | & UH2/SH2) | |
16752 | FACGG2=COMFAC*AS**2*32D0/27D0*(TH/UH-(2D0+MSTP(34)*1D0/4D0)* | |
16753 | & TH2/SH2) | |
16754 | DO 320 I=MMINA,MMAXA | |
16755 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
16756 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 320 | |
16757 | NCHN=NCHN+1 | |
16758 | ISIG(NCHN,1)=I | |
16759 | ISIG(NCHN,2)=-I | |
16760 | ISIG(NCHN,3)=1 | |
16761 | SIGH(NCHN)=0.5D0*FACGG1 | |
16762 | NCHN=NCHN+1 | |
16763 | ISIG(NCHN,1)=I | |
16764 | ISIG(NCHN,2)=-I | |
16765 | ISIG(NCHN,3)=2 | |
16766 | SIGH(NCHN)=0.5D0*FACGG2 | |
16767 | 320 CONTINUE | |
16768 | ||
16769 | ELSEIF(ISUB.EQ.14) THEN | |
16770 | C...f + fbar -> g + gamma (q + qbar -> g + gamma only) | |
16771 | FACGG=COMFAC*AS*AEM*8D0/9D0*(TH2+UH2)/(TH*UH) | |
16772 | DO 330 I=MMINA,MMAXA | |
16773 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
16774 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 330 | |
16775 | EI=KCHG(IABS(I),1)/3D0 | |
16776 | NCHN=NCHN+1 | |
16777 | ISIG(NCHN,1)=I | |
16778 | ISIG(NCHN,2)=-I | |
16779 | ISIG(NCHN,3)=1 | |
16780 | SIGH(NCHN)=FACGG*EI**2 | |
16781 | 330 CONTINUE | |
16782 | ||
16783 | ELSEIF(ISUB.EQ.15) THEN | |
16784 | C...f + fbar -> g + (gamma*/Z0) (q + qbar -> g + (gamma*/Z0) only) | |
16785 | FACZG=COMFAC*AS*AEM*(8D0/9D0)*(TH2+UH2+2D0*SQM4*SH)/(TH*UH) | |
16786 | C...gamma, gamma/Z interference and Z couplings to final fermion pairs | |
16787 | HFGG=0D0 | |
16788 | HFGZ=0D0 | |
16789 | HFZZ=0D0 | |
16790 | RADC4=1D0+PYALPS(SQM4)/PARU(1) | |
16791 | DO 340 I=1,MIN(16,MDCY(23,3)) | |
16792 | IDC=I+MDCY(23,2)-1 | |
16793 | IF(MDME(IDC,1).LT.0) GOTO 340 | |
16794 | IMDM=0 | |
16795 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.2.OR.MDME(IDC,1).EQ.4) | |
16796 | & IMDM=1 | |
16797 | IF(I.LE.8) THEN | |
16798 | EF=KCHG(I,1)/3D0 | |
16799 | AF=SIGN(1D0,EF+0.1D0) | |
16800 | VF=AF-4D0*EF*XWV | |
16801 | ELSEIF(I.LE.16) THEN | |
16802 | EF=KCHG(I+2,1)/3D0 | |
16803 | AF=SIGN(1D0,EF+0.1D0) | |
16804 | VF=AF-4D0*EF*XWV | |
16805 | ENDIF | |
16806 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SQM4 | |
16807 | IF(4D0*RM1.LT.1D0) THEN | |
16808 | FCOF=1D0 | |
16809 | IF(I.LE.8) FCOF=3D0*RADC4 | |
16810 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
16811 | IF(IMDM.EQ.1) THEN | |
16812 | HFGG=HFGG+FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
16813 | HFGZ=HFGZ+FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
16814 | HFZZ=HFZZ+FCOF*(VF**2*(1D0+2D0*RM1)+ | |
16815 | & AF**2*(1D0-4D0*RM1))*BE34 | |
16816 | ENDIF | |
16817 | ENDIF | |
16818 | 340 CONTINUE | |
16819 | C...Propagators: as simulated in PYOFSH and as desired | |
16820 | HBW4=(1D0/PARU(1))*GMMZ/((SQM4-SQMZ)**2+GMMZ**2) | |
16821 | MINT(15)=1 | |
16822 | MINT(61)=1 | |
16823 | CALL PYWIDT(23,SQM4,WDTP,WDTE) | |
16824 | HFAEM=(PARU(108)/PARU(2))*(2D0/3D0) | |
16825 | HFGG=HFGG*HFAEM*VINT(111)/SQM4 | |
16826 | HFGZ=HFGZ*HFAEM*VINT(112)/SQM4 | |
16827 | HFZZ=HFZZ*HFAEM*VINT(114)/SQM4 | |
16828 | C...Loop over flavours; consider full gamma/Z structure | |
16829 | DO 350 I=MMINA,MMAXA | |
16830 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
16831 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 350 | |
16832 | EI=KCHG(IABS(I),1)/3D0 | |
16833 | AI=SIGN(1D0,EI) | |
16834 | VI=AI-4D0*EI*XWV | |
16835 | NCHN=NCHN+1 | |
16836 | ISIG(NCHN,1)=I | |
16837 | ISIG(NCHN,2)=-I | |
16838 | ISIG(NCHN,3)=1 | |
16839 | SIGH(NCHN)=FACZG*(EI**2*HFGG+EI*VI*HFGZ+ | |
16840 | & (VI**2+AI**2)*HFZZ)/HBW4 | |
16841 | 350 CONTINUE | |
16842 | ||
16843 | ELSEIF(ISUB.EQ.16) THEN | |
16844 | C...f + fbar' -> g + W+/- (q + qbar' -> g + W+/- only) | |
16845 | FACWG=COMFAC*AS*AEM/XW*2D0/9D0*(TH2+UH2+2D0*SQM4*SH)/(TH*UH) | |
16846 | C...Propagators: as simulated in PYOFSH and as desired | |
16847 | HBW4=GMMW/((SQM4-SQMW)**2+GMMW**2) | |
16848 | CALL PYWIDT(24,SQM4,WDTP,WDTE) | |
16849 | GMMWC=SQRT(SQM4)*WDTP(0) | |
16850 | HBW4C=GMMWC/((SQM4-SQMW)**2+GMMWC**2) | |
16851 | FACWG=FACWG*HBW4C/HBW4 | |
16852 | DO 370 I=MMIN1,MMAX1 | |
16853 | IA=IABS(I) | |
16854 | IF(I.EQ.0.OR.IA.GT.10.OR.KFAC(1,I).EQ.0) GOTO 370 | |
16855 | DO 360 J=MMIN2,MMAX2 | |
16856 | JA=IABS(J) | |
16857 | IF(J.EQ.0.OR.JA.GT.10.OR.KFAC(2,J).EQ.0) GOTO 360 | |
16858 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 360 | |
16859 | KCHW=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
16860 | WIDSC=(WDTE(0,1)+WDTE(0,(5-KCHW)/2)+WDTE(0,4))/WDTP(0) | |
16861 | FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
16862 | NCHN=NCHN+1 | |
16863 | ISIG(NCHN,1)=I | |
16864 | ISIG(NCHN,2)=J | |
16865 | ISIG(NCHN,3)=1 | |
16866 | SIGH(NCHN)=FACWG*FCKM*WIDSC | |
16867 | 360 CONTINUE | |
16868 | 370 CONTINUE | |
16869 | ||
16870 | ELSEIF(ISUB.EQ.17) THEN | |
16871 | C...f + fbar -> g + h0 (q + qbar -> g + h0 only) | |
16872 | ||
16873 | ELSEIF(ISUB.EQ.18) THEN | |
16874 | C...f + fbar -> gamma + gamma | |
16875 | FACGG=COMFAC*AEM**2*2D0*(TH2+UH2)/(TH*UH) | |
16876 | DO 380 I=MMINA,MMAXA | |
16877 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 380 | |
16878 | EI=KCHG(IABS(I),1)/3D0 | |
16879 | FCOI=1D0 | |
16880 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
16881 | NCHN=NCHN+1 | |
16882 | ISIG(NCHN,1)=I | |
16883 | ISIG(NCHN,2)=-I | |
16884 | ISIG(NCHN,3)=1 | |
16885 | SIGH(NCHN)=0.5D0*FACGG*FCOI*EI**4 | |
16886 | 380 CONTINUE | |
16887 | ||
16888 | ELSEIF(ISUB.EQ.19) THEN | |
16889 | C...f + fbar -> gamma + (gamma*/Z0) | |
16890 | FACGZ=COMFAC*2D0*AEM**2*(TH2+UH2+2D0*SQM4*SH)/(TH*UH) | |
16891 | C...gamma, gamma/Z interference and Z couplings to final fermion pairs | |
16892 | HFGG=0D0 | |
16893 | HFGZ=0D0 | |
16894 | HFZZ=0D0 | |
16895 | RADC4=1D0+PYALPS(SQM4)/PARU(1) | |
16896 | DO 390 I=1,MIN(16,MDCY(23,3)) | |
16897 | IDC=I+MDCY(23,2)-1 | |
16898 | IF(MDME(IDC,1).LT.0) GOTO 390 | |
16899 | IMDM=0 | |
16900 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.2.OR.MDME(IDC,1).EQ.4) | |
16901 | & IMDM=1 | |
16902 | IF(I.LE.8) THEN | |
16903 | EF=KCHG(I,1)/3D0 | |
16904 | AF=SIGN(1D0,EF+0.1D0) | |
16905 | VF=AF-4D0*EF*XWV | |
16906 | ELSEIF(I.LE.16) THEN | |
16907 | EF=KCHG(I+2,1)/3D0 | |
16908 | AF=SIGN(1D0,EF+0.1D0) | |
16909 | VF=AF-4D0*EF*XWV | |
16910 | ENDIF | |
16911 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SQM4 | |
16912 | IF(4D0*RM1.LT.1D0) THEN | |
16913 | FCOF=1D0 | |
16914 | IF(I.LE.8) FCOF=3D0*RADC4 | |
16915 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
16916 | IF(IMDM.EQ.1) THEN | |
16917 | HFGG=HFGG+FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
16918 | HFGZ=HFGZ+FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
16919 | HFZZ=HFZZ+FCOF*(VF**2*(1D0+2D0*RM1)+ | |
16920 | & AF**2*(1D0-4D0*RM1))*BE34 | |
16921 | ENDIF | |
16922 | ENDIF | |
16923 | 390 CONTINUE | |
16924 | C...Propagators: as simulated in PYOFSH and as desired | |
16925 | HBW4=(1D0/PARU(1))*GMMZ/((SQM4-SQMZ)**2+GMMZ**2) | |
16926 | MINT(15)=1 | |
16927 | MINT(61)=1 | |
16928 | CALL PYWIDT(23,SQM4,WDTP,WDTE) | |
16929 | HFAEM=(PARU(108)/PARU(2))*(2D0/3D0) | |
16930 | HFGG=HFGG*HFAEM*VINT(111)/SQM4 | |
16931 | HFGZ=HFGZ*HFAEM*VINT(112)/SQM4 | |
16932 | HFZZ=HFZZ*HFAEM*VINT(114)/SQM4 | |
16933 | C...Loop over flavours; consider full gamma/Z structure | |
16934 | DO 400 I=MMINA,MMAXA | |
16935 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 400 | |
16936 | EI=KCHG(IABS(I),1)/3D0 | |
16937 | AI=SIGN(1D0,EI) | |
16938 | VI=AI-4D0*EI*XWV | |
16939 | FCOI=1D0 | |
16940 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
16941 | NCHN=NCHN+1 | |
16942 | ISIG(NCHN,1)=I | |
16943 | ISIG(NCHN,2)=-I | |
16944 | ISIG(NCHN,3)=1 | |
16945 | SIGH(NCHN)=FACGZ*FCOI*EI**2*(EI**2*HFGG+EI*VI*HFGZ+ | |
16946 | & (VI**2+AI**2)*HFZZ)/HBW4 | |
16947 | 400 CONTINUE | |
16948 | ||
16949 | ELSEIF(ISUB.EQ.20) THEN | |
16950 | C...f + fbar' -> gamma + W+/- | |
16951 | FACGW=COMFAC*0.5D0*AEM**2/XW | |
16952 | C...Propagators: as simulated in PYOFSH and as desired | |
16953 | HBW4=GMMW/((SQM4-SQMW)**2+GMMW**2) | |
16954 | CALL PYWIDT(24,SQM4,WDTP,WDTE) | |
16955 | GMMWC=SQRT(SQM4)*WDTP(0) | |
16956 | HBW4C=GMMWC/((SQM4-SQMW)**2+GMMWC**2) | |
16957 | FACGW=FACGW*HBW4C/HBW4 | |
16958 | C...Anomalous couplings | |
16959 | TERM1=(TH2+UH2+2D0*SQM4*SH)/(TH*UH) | |
16960 | TERM2=0D0 | |
16961 | TERM3=0D0 | |
16962 | IF(MSTP(5).GE.1) THEN | |
16963 | TERM2=PARU(153)*(TH-UH)/(TH+UH) | |
16964 | TERM3=0.5D0*PARU(153)**2*(TH*UH+(TH2+UH2)*SH/ | |
16965 | & (4D0*SQMW))/(TH+UH)**2 | |
16966 | ENDIF | |
16967 | DO 420 I=MMIN1,MMAX1 | |
16968 | IA=IABS(I) | |
16969 | IF(I.EQ.0.OR.IA.GT.20.OR.KFAC(1,I).EQ.0) GOTO 420 | |
16970 | DO 410 J=MMIN2,MMAX2 | |
16971 | JA=IABS(J) | |
16972 | IF(J.EQ.0.OR.JA.GT.20.OR.KFAC(2,J).EQ.0) GOTO 410 | |
16973 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 410 | |
16974 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
16975 | & GOTO 410 | |
16976 | KCHW=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
16977 | WIDSC=(WDTE(0,1)+WDTE(0,(5-KCHW)/2)+WDTE(0,4))/WDTP(0) | |
16978 | IF(IA.LE.10) THEN | |
16979 | FACWR=UH/(TH+UH)-1D0/3D0 | |
16980 | FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
16981 | FCOI=FACA/3D0 | |
16982 | ELSE | |
16983 | FACWR=-TH/(TH+UH) | |
16984 | FCKM=1D0 | |
16985 | FCOI=1D0 | |
16986 | ENDIF | |
16987 | FACWK=TERM1*FACWR**2+TERM2*FACWR+TERM3 | |
16988 | NCHN=NCHN+1 | |
16989 | ISIG(NCHN,1)=I | |
16990 | ISIG(NCHN,2)=J | |
16991 | ISIG(NCHN,3)=1 | |
16992 | SIGH(NCHN)=FACGW*FACWK*FCOI*FCKM*WIDSC | |
16993 | 410 CONTINUE | |
16994 | 420 CONTINUE | |
16995 | ENDIF | |
16996 | ||
16997 | ELSEIF(ISUB.LE.30) THEN | |
16998 | IF(ISUB.EQ.21) THEN | |
16999 | C...f + fbar -> gamma + h0 | |
17000 | ||
17001 | ELSEIF(ISUB.EQ.22) THEN | |
17002 | C...f + fbar -> (gamma*/Z0) + (gamma*/Z0) | |
17003 | C...Kinematics dependence | |
17004 | FACZZ=COMFAC*AEM**2*((TH2+UH2+2D0*(SQM3+SQM4)*SH)/(TH*UH)- | |
17005 | & SQM3*SQM4*(1D0/TH2+1D0/UH2)) | |
17006 | C...gamma, gamma/Z interference and Z couplings to final fermion pairs | |
17007 | DO 440 I=1,6 | |
17008 | DO 430 J=1,3 | |
17009 | HGZ(I,J)=0D0 | |
17010 | 430 CONTINUE | |
17011 | 440 CONTINUE | |
17012 | RADC3=1D0+PYALPS(SQM3)/PARU(1) | |
17013 | RADC4=1D0+PYALPS(SQM4)/PARU(1) | |
17014 | DO 450 I=1,MIN(16,MDCY(23,3)) | |
17015 | IDC=I+MDCY(23,2)-1 | |
17016 | IF(MDME(IDC,1).LT.0) GOTO 450 | |
17017 | IMDM=0 | |
17018 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.2) IMDM=1 | |
17019 | IF(MDME(IDC,1).EQ.4.OR.MDME(IDC,1).EQ.5) IMDM=MDME(IDC,1)-2 | |
17020 | IF(I.LE.8) THEN | |
17021 | EF=KCHG(I,1)/3D0 | |
17022 | AF=SIGN(1D0,EF+0.1D0) | |
17023 | VF=AF-4D0*EF*XWV | |
17024 | ELSEIF(I.LE.16) THEN | |
17025 | EF=KCHG(I+2,1)/3D0 | |
17026 | AF=SIGN(1D0,EF+0.1D0) | |
17027 | VF=AF-4D0*EF*XWV | |
17028 | ENDIF | |
17029 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SQM3 | |
17030 | IF(4D0*RM1.LT.1D0) THEN | |
17031 | FCOF=1D0 | |
17032 | IF(I.LE.8) FCOF=3D0*RADC3 | |
17033 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
17034 | IF(IMDM.GE.1) THEN | |
17035 | HGZ(1,IMDM)=HGZ(1,IMDM)+FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
17036 | HGZ(2,IMDM)=HGZ(2,IMDM)+FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
17037 | HGZ(3,IMDM)=HGZ(3,IMDM)+FCOF*(VF**2*(1D0+2D0*RM1)+ | |
17038 | & AF**2*(1D0-4D0*RM1))*BE34 | |
17039 | ENDIF | |
17040 | ENDIF | |
17041 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SQM4 | |
17042 | IF(4D0*RM1.LT.1D0) THEN | |
17043 | FCOF=1D0 | |
17044 | IF(I.LE.8) FCOF=3D0*RADC4 | |
17045 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
17046 | IF(IMDM.GE.1) THEN | |
17047 | HGZ(4,IMDM)=HGZ(4,IMDM)+FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
17048 | HGZ(5,IMDM)=HGZ(5,IMDM)+FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
17049 | HGZ(6,IMDM)=HGZ(6,IMDM)+FCOF*(VF**2*(1D0+2D0*RM1)+ | |
17050 | & AF**2*(1D0-4D0*RM1))*BE34 | |
17051 | ENDIF | |
17052 | ENDIF | |
17053 | 450 CONTINUE | |
17054 | C...Propagators: as simulated in PYOFSH and as desired | |
17055 | HBW3=(1D0/PARU(1))*GMMZ/((SQM3-SQMZ)**2+GMMZ**2) | |
17056 | HBW4=(1D0/PARU(1))*GMMZ/((SQM4-SQMZ)**2+GMMZ**2) | |
17057 | MINT(15)=1 | |
17058 | MINT(61)=1 | |
17059 | CALL PYWIDT(23,SQM3,WDTP,WDTE) | |
17060 | HFAEM=(PARU(108)/PARU(2))*(2D0/3D0) | |
17061 | DO 460 J=1,3 | |
17062 | HGZ(1,J)=HGZ(1,J)*HFAEM*VINT(111)/SQM3 | |
17063 | HGZ(2,J)=HGZ(2,J)*HFAEM*VINT(112)/SQM3 | |
17064 | HGZ(3,J)=HGZ(3,J)*HFAEM*VINT(114)/SQM3 | |
17065 | 460 CONTINUE | |
17066 | MINT(61)=1 | |
17067 | CALL PYWIDT(23,SQM4,WDTP,WDTE) | |
17068 | HFAEM=(PARU(108)/PARU(2))*(2D0/3D0) | |
17069 | DO 470 J=1,3 | |
17070 | HGZ(4,J)=HGZ(4,J)*HFAEM*VINT(111)/SQM4 | |
17071 | HGZ(5,J)=HGZ(5,J)*HFAEM*VINT(112)/SQM4 | |
17072 | HGZ(6,J)=HGZ(6,J)*HFAEM*VINT(114)/SQM4 | |
17073 | 470 CONTINUE | |
17074 | C...Loop over flavours; separate left- and right-handed couplings | |
17075 | DO 490 I=MMINA,MMAXA | |
17076 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 490 | |
17077 | EI=KCHG(IABS(I),1)/3D0 | |
17078 | AI=SIGN(1D0,EI) | |
17079 | VI=AI-4D0*EI*XWV | |
17080 | VALI=VI-AI | |
17081 | VARI=VI+AI | |
17082 | FCOI=1D0 | |
17083 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
17084 | DO 480 J=1,3 | |
17085 | HL3(J)=EI**2*HGZ(1,J)+EI*VALI*HGZ(2,J)+VALI**2*HGZ(3,J) | |
17086 | HR3(J)=EI**2*HGZ(1,J)+EI*VARI*HGZ(2,J)+VARI**2*HGZ(3,J) | |
17087 | HL4(J)=EI**2*HGZ(4,J)+EI*VALI*HGZ(5,J)+VALI**2*HGZ(6,J) | |
17088 | HR4(J)=EI**2*HGZ(4,J)+EI*VARI*HGZ(5,J)+VARI**2*HGZ(6,J) | |
17089 | 480 CONTINUE | |
17090 | FACLR=HL3(1)*HL4(1)+HL3(1)*(HL4(2)+HL4(3))+ | |
17091 | & HL4(1)*(HL3(2)+HL3(3))+HL3(2)*HL4(3)+HL4(2)*HL3(3)+ | |
17092 | & HR3(1)*HR4(1)+HR3(1)*(HR4(2)+HR4(3))+ | |
17093 | & HR4(1)*(HR3(2)+HR3(3))+HR3(2)*HR4(3)+HR4(2)*HR3(3) | |
17094 | NCHN=NCHN+1 | |
17095 | ISIG(NCHN,1)=I | |
17096 | ISIG(NCHN,2)=-I | |
17097 | ISIG(NCHN,3)=1 | |
17098 | SIGH(NCHN)=0.5D0*FACZZ*FCOI*FACLR/(HBW3*HBW4) | |
17099 | 490 CONTINUE | |
17100 | ||
17101 | ELSEIF(ISUB.EQ.23) THEN | |
17102 | C...f + fbar' -> Z0 + W+/- | |
17103 | FACZW=COMFAC*0.5D0*(AEM/XW)**2 | |
17104 | FACZW=FACZW*WIDS(23,2) | |
17105 | THUH=MAX(TH*UH-SQM3*SQM4,SH*CKIN(3)**2) | |
17106 | FACBW=1D0/((SH-SQMW)**2+GMMW**2) | |
17107 | DO 510 I=MMIN1,MMAX1 | |
17108 | IA=IABS(I) | |
17109 | IF(I.EQ.0.OR.IA.GT.20.OR.KFAC(1,I).EQ.0) GOTO 510 | |
17110 | DO 500 J=MMIN2,MMAX2 | |
17111 | JA=IABS(J) | |
17112 | IF(J.EQ.0.OR.JA.GT.20.OR.KFAC(2,J).EQ.0) GOTO 500 | |
17113 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 500 | |
17114 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
17115 | & GOTO 500 | |
17116 | KCHW=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
17117 | EI=KCHG(IA,1)/3D0 | |
17118 | AI=SIGN(1D0,EI+0.1D0) | |
17119 | VI=AI-4D0*EI*XWV | |
17120 | EJ=KCHG(JA,1)/3D0 | |
17121 | AJ=SIGN(1D0,EJ+0.1D0) | |
17122 | VJ=AJ-4D0*EJ*XWV | |
17123 | IF(VI+AI.GT.0) THEN | |
17124 | VISAV=VI | |
17125 | AISAV=AI | |
17126 | VI=VJ | |
17127 | AI=AJ | |
17128 | VJ=VISAV | |
17129 | AJ=AISAV | |
17130 | ENDIF | |
17131 | FCKM=1D0 | |
17132 | IF(IA.LE.10) FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
17133 | FCOI=1D0 | |
17134 | IF(IA.LE.10) FCOI=FACA/3D0 | |
17135 | NCHN=NCHN+1 | |
17136 | ISIG(NCHN,1)=I | |
17137 | ISIG(NCHN,2)=J | |
17138 | ISIG(NCHN,3)=1 | |
17139 | SIGH(NCHN)=FACZW*FCOI*FCKM*(FACBW*((9D0-8D0*XW)/4D0*THUH+ | |
17140 | & (8D0*XW-6D0)/4D0*SH*(SQM3+SQM4))+(THUH-SH*(SQM3+SQM4))* | |
17141 | & (SH-SQMW)*FACBW*0.5D0*((VJ+AJ)/TH-(VI+AI)/UH)+ | |
17142 | & THUH/(16D0*XW1)*((VJ+AJ)**2/TH2+(VI+AI)**2/UH2)+ | |
17143 | & SH*(SQM3+SQM4)/(8D0*XW1)*(VI+AI)*(VJ+AJ)/(TH*UH))* | |
17144 | & WIDS(24,(5-KCHW)/2) | |
17145 | 500 CONTINUE | |
17146 | 510 CONTINUE | |
17147 | ||
17148 | ELSEIF(ISUB.EQ.24) THEN | |
17149 | C...f + fbar -> Z0 + h0 (or H0, or A0) | |
17150 | THUH=MAX(TH*UH-SQM3*SQM4,SH*CKIN(3)**2) | |
17151 | FACHZ=COMFAC*8D0*(AEM*XWC)**2* | |
17152 | & (THUH+2D0*SH*SQM3)/((SH-SQMZ)**2+GMMZ**2) | |
17153 | FACHZ=FACHZ*WIDS(23,2)*WIDS(KFHIGG,2) | |
17154 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) FACHZ=FACHZ* | |
17155 | & PARU(154+10*IHIGG)**2 | |
17156 | DO 520 I=MMINA,MMAXA | |
17157 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 520 | |
17158 | EI=KCHG(IABS(I),1)/3D0 | |
17159 | AI=SIGN(1D0,EI) | |
17160 | VI=AI-4D0*EI*XWV | |
17161 | FCOI=1D0 | |
17162 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
17163 | NCHN=NCHN+1 | |
17164 | ISIG(NCHN,1)=I | |
17165 | ISIG(NCHN,2)=-I | |
17166 | ISIG(NCHN,3)=1 | |
17167 | SIGH(NCHN)=FACHZ*FCOI*(VI**2+AI**2) | |
17168 | 520 CONTINUE | |
17169 | ||
17170 | ELSEIF(ISUB.EQ.25) THEN | |
17171 | C...f + fbar -> W+ + W- | |
17172 | C...Propagators: Z0, W+- as simulated in PYOFSH and as desired | |
17173 | CALL PYWIDT(23,SH,WDTP,WDTE) | |
17174 | GMMZC=SHR*WDTP(0) | |
17175 | HBWZC=SH**2/((SH-SQMZ)**2+GMMZC**2) | |
17176 | HBW3=GMMW/((SQM3-SQMW)**2+GMMW**2) | |
17177 | CALL PYWIDT(24,SQM3,WDTP,WDTE) | |
17178 | GMMW3=SQRT(SQM3)*WDTP(0) | |
17179 | HBW3C=GMMW3/((SQM3-SQMW)**2+GMMW3**2) | |
17180 | HBW4=GMMW/((SQM4-SQMW)**2+GMMW**2) | |
17181 | CALL PYWIDT(24,SQM4,WDTP,WDTE) | |
17182 | GMMW4=SQRT(SQM4)*WDTP(0) | |
17183 | HBW4C=GMMW4/((SQM4-SQMW)**2+GMMW4**2) | |
17184 | C...Kinematical functions | |
17185 | THUH=MAX(TH*UH-SQM3*SQM4,SH*CKIN(3)**2) | |
17186 | THUH34=(2D0*SH*(SQM3+SQM4)+THUH)/(SQM3*SQM4) | |
17187 | GS=(((SH-SQM3-SQM4)**2-4D0*SQM3*SQM4)*THUH34+12D0*THUH)/SH2 | |
17188 | GT=THUH34+4D0*THUH/TH2 | |
17189 | GST=((SH-SQM3-SQM4)*THUH34+4D0*(SH*(SQM3+SQM4)-THUH)/TH)/SH | |
17190 | GU=THUH34+4D0*THUH/UH2 | |
17191 | GSU=((SH-SQM3-SQM4)*THUH34+4D0*(SH*(SQM3+SQM4)-THUH)/UH)/SH | |
17192 | C...Common factors and couplings | |
17193 | FACWW=COMFAC*(HBW3C/HBW3)*(HBW4C/HBW4) | |
17194 | FACWW=FACWW*WIDS(24,1) | |
17195 | CGG=AEM**2/2D0 | |
17196 | CGZ=AEM**2/(4D0*XW)*HBWZC*(1D0-SQMZ/SH) | |
17197 | CZZ=AEM**2/(32D0*XW**2)*HBWZC | |
17198 | CNG=AEM**2/(4D0*XW) | |
17199 | CNZ=AEM**2/(16D0*XW**2)*HBWZC*(1D0-SQMZ/SH) | |
17200 | CNN=AEM**2/(16D0*XW**2) | |
17201 | C...Coulomb factor for W+W- pair | |
17202 | IF(MSTP(40).GE.1.AND.MSTP(40).LE.3) THEN | |
17203 | COULE=(SH-4D0*SQMW)/(4D0*PMAS(24,1)) | |
17204 | COULP=MAX(1D-10,0.5D0*BE34*SQRT(SH)) | |
17205 | IF(COULE.LT.100D0*PMAS(24,2)) THEN | |
17206 | COULP1=SQRT(0.5D0*PMAS(24,1)*(SQRT(COULE**2+ | |
17207 | & PMAS(24,2)**2)-COULE)) | |
17208 | ELSE | |
17209 | COULP1=SQRT(0.5D0*PMAS(24,1)*(0.5D0*PMAS(24,2)**2/COULE)) | |
17210 | ENDIF | |
17211 | IF(COULE.GT.-100D0*PMAS(24,2)) THEN | |
17212 | COULP2=SQRT(0.5D0*PMAS(24,1)*(SQRT(COULE**2+ | |
17213 | & PMAS(24,2)**2)+COULE)) | |
17214 | ELSE | |
17215 | COULP2=SQRT(0.5D0*PMAS(24,1)*(0.5D0*PMAS(24,2)**2/ | |
17216 | & ABS(COULE))) | |
17217 | ENDIF | |
17218 | IF(MSTP(40).EQ.1) THEN | |
17219 | COULDC=PARU(1)-2D0*ATAN((COULP1**2+COULP2**2-COULP**2)/ | |
17220 | & MAX(1D-10,2D0*COULP*COULP1)) | |
17221 | FACCOU=1D0+0.5D0*PARU(101)*COULDC/MAX(1D-5,BE34) | |
17222 | ELSEIF(MSTP(40).EQ.2) THEN | |
17223 | COULCK=CMPLX(SNGL(COULP1),SNGL(COULP2)) | |
17224 | COULCP=CMPLX(0.,SNGL(COULP)) | |
17225 | COULCD=(COULCK+COULCP)/(COULCK-COULCP) | |
17226 | COULCR=1.+SNGL(PARU(101)*SQRT(SH))/(4.*COULCP)*LOG(COULCD) | |
17227 | COULCS=CMPLX(0.,0.) | |
17228 | NSTP=100 | |
17229 | DO 530 ISTP=1,NSTP | |
17230 | COULXX=(ISTP-0.5)/NSTP | |
17231 | COULCS=COULCS+(1./COULXX)*LOG((1.+COULXX*COULCD)/ | |
17232 | & (1.+COULXX/COULCD)) | |
17233 | 530 CONTINUE | |
17234 | COULCR=COULCR+SNGL(PARU(101)**2*SH)/(16.*COULCP*COULCK)* | |
17235 | & (COULCS/NSTP) | |
17236 | FACCOU=ABS(COULCR)**2 | |
17237 | ELSEIF(MSTP(40).EQ.3) THEN | |
17238 | COULDC=PARU(1)-2D0*(1D0-BE34)**2*ATAN((COULP1**2+ | |
17239 | & COULP2**2-COULP**2)/MAX(1D-10,2D0*COULP*COULP1)) | |
17240 | FACCOU=1D0+0.5D0*PARU(101)*COULDC/MAX(1D-5,BE34) | |
17241 | ENDIF | |
17242 | ELSEIF(MSTP(40).EQ.4) THEN | |
17243 | FACCOU=1D0+0.5D0*PARU(101)*PARU(1)/MAX(1D-5,BE34) | |
17244 | ELSE | |
17245 | FACCOU=1D0 | |
17246 | ENDIF | |
17247 | VINT(95)=FACCOU | |
17248 | FACWW=FACWW*FACCOU | |
17249 | C...Loop over allowed flavours | |
17250 | DO 540 I=MMINA,MMAXA | |
17251 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 540 | |
17252 | EI=KCHG(IABS(I),1)/3D0 | |
17253 | AI=SIGN(1D0,EI+0.1D0) | |
17254 | VI=AI-4D0*EI*XWV | |
17255 | FCOI=1D0 | |
17256 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
17257 | IF(AI.LT.0D0) THEN | |
17258 | DSIGWW=(CGG*EI**2+CGZ*VI*EI+CZZ*(VI**2+AI**2))*GS+ | |
17259 | & (CNG*EI+CNZ*(VI+AI))*GST+CNN*GT | |
17260 | ELSE | |
17261 | DSIGWW=(CGG*EI**2+CGZ*VI*EI+CZZ*(VI**2+AI**2))*GS- | |
17262 | & (CNG*EI+CNZ*(VI+AI))*GSU+CNN*GU | |
17263 | ENDIF | |
17264 | NCHN=NCHN+1 | |
17265 | ISIG(NCHN,1)=I | |
17266 | ISIG(NCHN,2)=-I | |
17267 | ISIG(NCHN,3)=1 | |
17268 | SIGH(NCHN)=FACWW*FCOI*DSIGWW | |
17269 | 540 CONTINUE | |
17270 | ||
17271 | ELSEIF(ISUB.EQ.26) THEN | |
17272 | C...f + fbar' -> W+/- + h0 (or H0, or A0) | |
17273 | THUH=MAX(TH*UH-SQM3*SQM4,SH*CKIN(3)**2) | |
17274 | FACHW=COMFAC*0.125D0*(AEM/XW)**2*(THUH+2D0*SH*SQM3)/ | |
17275 | & ((SH-SQMW)**2+GMMW**2) | |
17276 | FACHW=FACHW*WIDS(KFHIGG,2) | |
17277 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) FACHW=FACHW* | |
17278 | & PARU(155+10*IHIGG)**2 | |
17279 | DO 560 I=MMIN1,MMAX1 | |
17280 | IA=IABS(I) | |
17281 | IF(I.EQ.0.OR.IA.GT.20.OR.KFAC(1,I).EQ.0) GOTO 560 | |
17282 | DO 550 J=MMIN2,MMAX2 | |
17283 | JA=IABS(J) | |
17284 | IF(J.EQ.0.OR.JA.GT.20.OR.KFAC(1,J).EQ.0) GOTO 550 | |
17285 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 550 | |
17286 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
17287 | & GOTO 550 | |
17288 | KCHW=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
17289 | FCKM=1D0 | |
17290 | IF(IA.LE.10) FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
17291 | FCOI=1D0 | |
17292 | IF(IA.LE.10) FCOI=FACA/3D0 | |
17293 | NCHN=NCHN+1 | |
17294 | ISIG(NCHN,1)=I | |
17295 | ISIG(NCHN,2)=J | |
17296 | ISIG(NCHN,3)=1 | |
17297 | SIGH(NCHN)=FACHW*FCOI*FCKM*WIDS(24,(5-KCHW)/2) | |
17298 | 550 CONTINUE | |
17299 | 560 CONTINUE | |
17300 | ||
17301 | ELSEIF(ISUB.EQ.27) THEN | |
17302 | C...f + fbar -> h0 + h0 | |
17303 | ||
17304 | ELSEIF(ISUB.EQ.28) THEN | |
17305 | C...f + g -> f + g (q + g -> q + g only) | |
17306 | FACQG1=COMFAC*AS**2*4D0/9D0*((2D0+MSTP(34)*1D0/4D0)*UH2/TH2- | |
17307 | & UH/SH)*FACA | |
17308 | FACQG2=COMFAC*AS**2*4D0/9D0*((2D0+MSTP(34)*1D0/4D0)*SH2/TH2- | |
17309 | & SH/UH) | |
17310 | DO 580 I=MMINA,MMAXA | |
17311 | IF(I.EQ.0.OR.IABS(I).GT.10) GOTO 580 | |
17312 | DO 570 ISDE=1,2 | |
17313 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 570 | |
17314 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 570 | |
17315 | NCHN=NCHN+1 | |
17316 | ISIG(NCHN,ISDE)=I | |
17317 | ISIG(NCHN,3-ISDE)=21 | |
17318 | ISIG(NCHN,3)=1 | |
17319 | SIGH(NCHN)=FACQG1 | |
17320 | NCHN=NCHN+1 | |
17321 | ISIG(NCHN,ISDE)=I | |
17322 | ISIG(NCHN,3-ISDE)=21 | |
17323 | ISIG(NCHN,3)=2 | |
17324 | SIGH(NCHN)=FACQG2 | |
17325 | 570 CONTINUE | |
17326 | 580 CONTINUE | |
17327 | ||
17328 | ELSEIF(ISUB.EQ.29) THEN | |
17329 | C...f + g -> f + gamma (q + g -> q + gamma only) | |
17330 | FGQ=COMFAC*FACA*AS*AEM*1D0/3D0*(SH2+UH2)/(-SH*UH) | |
17331 | DO 600 I=MMINA,MMAXA | |
17332 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 600 | |
17333 | EI=KCHG(IABS(I),1)/3D0 | |
17334 | FACGQ=FGQ*EI**2 | |
17335 | DO 590 ISDE=1,2 | |
17336 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 590 | |
17337 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 590 | |
17338 | NCHN=NCHN+1 | |
17339 | ISIG(NCHN,ISDE)=I | |
17340 | ISIG(NCHN,3-ISDE)=21 | |
17341 | ISIG(NCHN,3)=1 | |
17342 | SIGH(NCHN)=FACGQ | |
17343 | 590 CONTINUE | |
17344 | 600 CONTINUE | |
17345 | ||
17346 | ELSEIF(ISUB.EQ.30) THEN | |
17347 | C...f + g -> f + (gamma*/Z0) (q + g -> q + (gamma*/Z0) only) | |
17348 | FZQ=COMFAC*FACA*AS*AEM*(1D0/3D0)*(SH2+UH2+2D0*SQM4*TH)/ | |
17349 | & (-SH*UH) | |
17350 | C...gamma, gamma/Z interference and Z couplings to final fermion pairs | |
17351 | HFGG=0D0 | |
17352 | HFGZ=0D0 | |
17353 | HFZZ=0D0 | |
17354 | RADC4=1D0+PYALPS(SQM4)/PARU(1) | |
17355 | DO 610 I=1,MIN(16,MDCY(23,3)) | |
17356 | IDC=I+MDCY(23,2)-1 | |
17357 | IF(MDME(IDC,1).LT.0) GOTO 610 | |
17358 | IMDM=0 | |
17359 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.2.OR.MDME(IDC,1).EQ.4) | |
17360 | & IMDM=1 | |
17361 | IF(I.LE.8) THEN | |
17362 | EF=KCHG(I,1)/3D0 | |
17363 | AF=SIGN(1D0,EF+0.1D0) | |
17364 | VF=AF-4D0*EF*XWV | |
17365 | ELSEIF(I.LE.16) THEN | |
17366 | EF=KCHG(I+2,1)/3D0 | |
17367 | AF=SIGN(1D0,EF+0.1D0) | |
17368 | VF=AF-4D0*EF*XWV | |
17369 | ENDIF | |
17370 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SQM4 | |
17371 | IF(4D0*RM1.LT.1D0) THEN | |
17372 | FCOF=1D0 | |
17373 | IF(I.LE.8) FCOF=3D0*RADC4 | |
17374 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
17375 | IF(IMDM.EQ.1) THEN | |
17376 | HFGG=HFGG+FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
17377 | HFGZ=HFGZ+FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
17378 | HFZZ=HFZZ+FCOF*(VF**2*(1D0+2D0*RM1)+ | |
17379 | & AF**2*(1D0-4D0*RM1))*BE34 | |
17380 | ENDIF | |
17381 | ENDIF | |
17382 | 610 CONTINUE | |
17383 | C...Propagators: as simulated in PYOFSH and as desired | |
17384 | HBW4=(1D0/PARU(1))*GMMZ/((SQM4-SQMZ)**2+GMMZ**2) | |
17385 | MINT(15)=1 | |
17386 | MINT(61)=1 | |
17387 | CALL PYWIDT(23,SQM4,WDTP,WDTE) | |
17388 | HFAEM=(PARU(108)/PARU(2))*(2D0/3D0) | |
17389 | HFGG=HFGG*HFAEM*VINT(111)/SQM4 | |
17390 | HFGZ=HFGZ*HFAEM*VINT(112)/SQM4 | |
17391 | HFZZ=HFZZ*HFAEM*VINT(114)/SQM4 | |
17392 | C...Loop over flavours; consider full gamma/Z structure | |
17393 | DO 630 I=MMINA,MMAXA | |
17394 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 630 | |
17395 | EI=KCHG(IABS(I),1)/3D0 | |
17396 | AI=SIGN(1D0,EI) | |
17397 | VI=AI-4D0*EI*XWV | |
17398 | FACZQ=FZQ*(EI**2*HFGG+EI*VI*HFGZ+ | |
17399 | & (VI**2+AI**2)*HFZZ)/HBW4 | |
17400 | DO 620 ISDE=1,2 | |
17401 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 620 | |
17402 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 620 | |
17403 | NCHN=NCHN+1 | |
17404 | ISIG(NCHN,ISDE)=I | |
17405 | ISIG(NCHN,3-ISDE)=21 | |
17406 | ISIG(NCHN,3)=1 | |
17407 | SIGH(NCHN)=FACZQ | |
17408 | 620 CONTINUE | |
17409 | 630 CONTINUE | |
17410 | ENDIF | |
17411 | ||
17412 | ELSEIF(ISUB.LE.40) THEN | |
17413 | IF(ISUB.EQ.31) THEN | |
17414 | C...f + g -> f' + W+/- (q + g -> q' + W+/- only) | |
17415 | FACWQ=COMFAC*FACA*AS*AEM/XW*1D0/12D0* | |
17416 | & (SH2+UH2+2D0*SQM4*TH)/(-SH*UH) | |
17417 | C...Propagators: as simulated in PYOFSH and as desired | |
17418 | HBW4=GMMW/((SQM4-SQMW)**2+GMMW**2) | |
17419 | CALL PYWIDT(24,SQM4,WDTP,WDTE) | |
17420 | GMMWC=SQRT(SQM4)*WDTP(0) | |
17421 | HBW4C=GMMWC/((SQM4-SQMW)**2+GMMWC**2) | |
17422 | FACWQ=FACWQ*HBW4C/HBW4 | |
17423 | DO 650 I=MMINA,MMAXA | |
17424 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 650 | |
17425 | IA=IABS(I) | |
17426 | KCHW=ISIGN(1,KCHG(IA,1)*ISIGN(1,I)) | |
17427 | WIDSC=(WDTE(0,1)+WDTE(0,(5-KCHW)/2)+WDTE(0,4))/WDTP(0) | |
17428 | DO 640 ISDE=1,2 | |
17429 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 640 | |
17430 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 640 | |
17431 | NCHN=NCHN+1 | |
17432 | ISIG(NCHN,ISDE)=I | |
17433 | ISIG(NCHN,3-ISDE)=21 | |
17434 | ISIG(NCHN,3)=1 | |
17435 | SIGH(NCHN)=FACWQ*VINT(180+I)*WIDSC | |
17436 | 640 CONTINUE | |
17437 | 650 CONTINUE | |
17438 | ||
17439 | ELSEIF(ISUB.EQ.32) THEN | |
17440 | C...f + g -> f + h0 (q + g -> q + h0 only) | |
17441 | ||
17442 | ELSEIF(ISUB.EQ.33) THEN | |
17443 | C...f + gamma -> f + g (q + gamma -> q + g only) | |
17444 | FGQ=COMFAC*AS*AEM*8D0/3D0*(SH2+UH2)/(-SH*UH) | |
17445 | DO 670 I=MMINA,MMAXA | |
17446 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 670 | |
17447 | EI=KCHG(IABS(I),1)/3D0 | |
17448 | FACGQ=FGQ*EI**2 | |
17449 | DO 660 ISDE=1,2 | |
17450 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,22).EQ.0) GOTO 660 | |
17451 | IF(ISDE.EQ.2.AND.KFAC(1,22)*KFAC(2,I).EQ.0) GOTO 660 | |
17452 | NCHN=NCHN+1 | |
17453 | ISIG(NCHN,ISDE)=I | |
17454 | ISIG(NCHN,3-ISDE)=22 | |
17455 | ISIG(NCHN,3)=1 | |
17456 | SIGH(NCHN)=FACGQ | |
17457 | 660 CONTINUE | |
17458 | 670 CONTINUE | |
17459 | ||
17460 | ELSEIF(ISUB.EQ.34) THEN | |
17461 | C...f + gamma -> f + gamma | |
17462 | FGQ=COMFAC*AEM**2*2D0*(SH2+UH2)/(-SH*UH) | |
17463 | DO 690 I=MMINA,MMAXA | |
17464 | IF(I.EQ.0) GOTO 690 | |
17465 | EI=KCHG(IABS(I),1)/3D0 | |
17466 | FACGQ=FGQ*EI**4 | |
17467 | DO 680 ISDE=1,2 | |
17468 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,22).EQ.0) GOTO 680 | |
17469 | IF(ISDE.EQ.2.AND.KFAC(1,22)*KFAC(2,I).EQ.0) GOTO 680 | |
17470 | NCHN=NCHN+1 | |
17471 | ISIG(NCHN,ISDE)=I | |
17472 | ISIG(NCHN,3-ISDE)=22 | |
17473 | ISIG(NCHN,3)=1 | |
17474 | SIGH(NCHN)=FACGQ | |
17475 | 680 CONTINUE | |
17476 | 690 CONTINUE | |
17477 | ||
17478 | ELSEIF(ISUB.EQ.35) THEN | |
17479 | C...f + gamma -> f + (gamma*/Z0) | |
17480 | FZQN=COMFAC*2D0*AEM**2*(SH2+UH2+2D0*SQM4*TH) | |
17481 | FZQD=SQPTH*SQM4-SH*UH | |
17482 | C...gamma, gamma/Z interference and Z couplings to final fermion pairs | |
17483 | HFGG=0D0 | |
17484 | HFGZ=0D0 | |
17485 | HFZZ=0D0 | |
17486 | RADC4=1D0+PYALPS(SQM4)/PARU(1) | |
17487 | DO 700 I=1,MIN(16,MDCY(23,3)) | |
17488 | IDC=I+MDCY(23,2)-1 | |
17489 | IF(MDME(IDC,1).LT.0) GOTO 700 | |
17490 | IMDM=0 | |
17491 | IF(MDME(IDC,1).EQ.1.OR.MDME(IDC,1).EQ.2.OR.MDME(IDC,1).EQ.4) | |
17492 | & IMDM=1 | |
17493 | IF(I.LE.8) THEN | |
17494 | EF=KCHG(I,1)/3D0 | |
17495 | AF=SIGN(1D0,EF+0.1D0) | |
17496 | VF=AF-4D0*EF*XWV | |
17497 | ELSEIF(I.LE.16) THEN | |
17498 | EF=KCHG(I+2,1)/3D0 | |
17499 | AF=SIGN(1D0,EF+0.1D0) | |
17500 | VF=AF-4D0*EF*XWV | |
17501 | ENDIF | |
17502 | RM1=PMAS(IABS(KFDP(IDC,1)),1)**2/SQM4 | |
17503 | IF(4D0*RM1.LT.1D0) THEN | |
17504 | FCOF=1D0 | |
17505 | IF(I.LE.8) FCOF=3D0*RADC4 | |
17506 | BE34=SQRT(MAX(0D0,1D0-4D0*RM1)) | |
17507 | IF(IMDM.EQ.1) THEN | |
17508 | HFGG=HFGG+FCOF*EF**2*(1D0+2D0*RM1)*BE34 | |
17509 | HFGZ=HFGZ+FCOF*EF*VF*(1D0+2D0*RM1)*BE34 | |
17510 | HFZZ=HFZZ+FCOF*(VF**2*(1D0+2D0*RM1)+ | |
17511 | & AF**2*(1D0-4D0*RM1))*BE34 | |
17512 | ENDIF | |
17513 | ENDIF | |
17514 | 700 CONTINUE | |
17515 | C...Propagators: as simulated in PYOFSH and as desired | |
17516 | HBW4=(1D0/PARU(1))*GMMZ/((SQM4-SQMZ)**2+GMMZ**2) | |
17517 | MINT(15)=1 | |
17518 | MINT(61)=1 | |
17519 | CALL PYWIDT(23,SQM4,WDTP,WDTE) | |
17520 | HFAEM=(PARU(108)/PARU(2))*(2D0/3D0) | |
17521 | HFGG=HFGG*HFAEM*VINT(111)/SQM4 | |
17522 | HFGZ=HFGZ*HFAEM*VINT(112)/SQM4 | |
17523 | HFZZ=HFZZ*HFAEM*VINT(114)/SQM4 | |
17524 | C...Loop over flavours; consider full gamma/Z structure | |
17525 | DO 720 I=MMINA,MMAXA | |
17526 | IF(I.EQ.0) GOTO 720 | |
17527 | EI=KCHG(IABS(I),1)/3D0 | |
17528 | AI=SIGN(1D0,EI) | |
17529 | VI=AI-4D0*EI*XWV | |
17530 | FACZQ=EI**2*(EI**2*HFGG+EI*VI*HFGZ+ | |
17531 | & (VI**2+AI**2)*HFZZ)/HBW4 | |
17532 | DO 710 ISDE=1,2 | |
17533 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,22).EQ.0) GOTO 710 | |
17534 | IF(ISDE.EQ.2.AND.KFAC(1,22)*KFAC(2,I).EQ.0) GOTO 710 | |
17535 | NCHN=NCHN+1 | |
17536 | ISIG(NCHN,ISDE)=I | |
17537 | ISIG(NCHN,3-ISDE)=22 | |
17538 | ISIG(NCHN,3)=1 | |
17539 | SIGH(NCHN)=FACZQ*FZQN/MAX(PMAS(IABS(I),1)**2*SQM4,FZQD) | |
17540 | 710 CONTINUE | |
17541 | 720 CONTINUE | |
17542 | ||
17543 | ELSEIF(ISUB.EQ.36) THEN | |
17544 | C...f + gamma -> f' + W+/- | |
17545 | FWQ=COMFAC*AEM**2/(2D0*XW)* | |
17546 | & (SH2+UH2+2D0*SQM4*TH)/(SQPTH*SQM4-SH*UH) | |
17547 | C...Propagators: as simulated in PYOFSH and as desired | |
17548 | HBW4=GMMW/((SQM4-SQMW)**2+GMMW**2) | |
17549 | CALL PYWIDT(24,SQM4,WDTP,WDTE) | |
17550 | GMMWC=SQRT(SQM4)*WDTP(0) | |
17551 | HBW4C=GMMWC/((SQM4-SQMW)**2+GMMWC**2) | |
17552 | FWQ=FWQ*HBW4C/HBW4 | |
17553 | DO 740 I=MMINA,MMAXA | |
17554 | IF(I.EQ.0) GOTO 740 | |
17555 | IA=IABS(I) | |
17556 | EIA=ABS(KCHG(IABS(I),1)/3D0) | |
17557 | FACWQ=FWQ*(EIA-SH/(SH+UH))**2 | |
17558 | KCHW=ISIGN(1,KCHG(IA,1)*ISIGN(1,I)) | |
17559 | WIDSC=(WDTE(0,1)+WDTE(0,(5-KCHW)/2)+WDTE(0,4))/WDTP(0) | |
17560 | DO 730 ISDE=1,2 | |
17561 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,22).EQ.0) GOTO 730 | |
17562 | IF(ISDE.EQ.2.AND.KFAC(1,22)*KFAC(2,I).EQ.0) GOTO 730 | |
17563 | NCHN=NCHN+1 | |
17564 | ISIG(NCHN,ISDE)=I | |
17565 | ISIG(NCHN,3-ISDE)=22 | |
17566 | ISIG(NCHN,3)=1 | |
17567 | SIGH(NCHN)=FACWQ*VINT(180+I)*WIDSC | |
17568 | 730 CONTINUE | |
17569 | 740 CONTINUE | |
17570 | ||
17571 | ELSEIF(ISUB.EQ.37) THEN | |
17572 | C...f + gamma -> f + h0 | |
17573 | ||
17574 | ELSEIF(ISUB.EQ.38) THEN | |
17575 | C...f + Z0 -> f + g (q + Z0 -> q + g only) | |
17576 | ||
17577 | ELSEIF(ISUB.EQ.39) THEN | |
17578 | C...f + Z0 -> f + gamma | |
17579 | ||
17580 | ELSEIF(ISUB.EQ.40) THEN | |
17581 | C...f + Z0 -> f + Z0 | |
17582 | ENDIF | |
17583 | ||
17584 | ELSEIF(ISUB.LE.50) THEN | |
17585 | IF(ISUB.EQ.41) THEN | |
17586 | C...f + Z0 -> f' + W+/- | |
17587 | ||
17588 | ELSEIF(ISUB.EQ.42) THEN | |
17589 | C...f + Z0 -> f + h0 | |
17590 | ||
17591 | ELSEIF(ISUB.EQ.43) THEN | |
17592 | C...f + W+/- -> f' + g (q + W+/- -> q' + g only) | |
17593 | ||
17594 | ELSEIF(ISUB.EQ.44) THEN | |
17595 | C...f + W+/- -> f' + gamma | |
17596 | ||
17597 | ELSEIF(ISUB.EQ.45) THEN | |
17598 | C...f + W+/- -> f' + Z0 | |
17599 | ||
17600 | ELSEIF(ISUB.EQ.46) THEN | |
17601 | C...f + W+/- -> f' + W+/- | |
17602 | ||
17603 | ELSEIF(ISUB.EQ.47) THEN | |
17604 | C...f + W+/- -> f' + h0 | |
17605 | ||
17606 | ELSEIF(ISUB.EQ.48) THEN | |
17607 | C...f + h0 -> f + g (q + h0 -> q + g only) | |
17608 | ||
17609 | ELSEIF(ISUB.EQ.49) THEN | |
17610 | C...f + h0 -> f + gamma | |
17611 | ||
17612 | ELSEIF(ISUB.EQ.50) THEN | |
17613 | C...f + h0 -> f + Z0 | |
17614 | ENDIF | |
17615 | ||
17616 | ELSEIF(ISUB.LE.60) THEN | |
17617 | IF(ISUB.EQ.51) THEN | |
17618 | C...f + h0 -> f' + W+/- | |
17619 | ||
17620 | ELSEIF(ISUB.EQ.52) THEN | |
17621 | C...f + h0 -> f + h0 | |
17622 | ||
17623 | ELSEIF(ISUB.EQ.53) THEN | |
17624 | C...g + g -> f + fbar (g + g -> q + qbar only) | |
17625 | CALL PYWIDT(21,SH,WDTP,WDTE) | |
17626 | FACQQ1=COMFAC*AS**2*1D0/6D0*(UH/TH-(2D0+MSTP(34)*1D0/4D0)* | |
17627 | & UH2/SH2)*(WDTE(0,1)+WDTE(0,2)+WDTE(0,3)+WDTE(0,4))*FACA | |
17628 | FACQQ2=COMFAC*AS**2*1D0/6D0*(TH/UH-(2D0+MSTP(34)*1D0/4D0)* | |
17629 | & TH2/SH2)*(WDTE(0,1)+WDTE(0,2)+WDTE(0,3)+WDTE(0,4))*FACA | |
17630 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 750 | |
17631 | NCHN=NCHN+1 | |
17632 | ISIG(NCHN,1)=21 | |
17633 | ISIG(NCHN,2)=21 | |
17634 | ISIG(NCHN,3)=1 | |
17635 | SIGH(NCHN)=FACQQ1 | |
17636 | NCHN=NCHN+1 | |
17637 | ISIG(NCHN,1)=21 | |
17638 | ISIG(NCHN,2)=21 | |
17639 | ISIG(NCHN,3)=2 | |
17640 | SIGH(NCHN)=FACQQ2 | |
17641 | 750 CONTINUE | |
17642 | ||
17643 | ELSEIF(ISUB.EQ.54) THEN | |
17644 | C...g + gamma -> f + fbar (g + gamma -> q + qbar only) | |
17645 | CALL PYWIDT(21,SH,WDTP,WDTE) | |
17646 | WDTESU=0D0 | |
17647 | DO 760 I=1,MIN(8,MDCY(21,3)) | |
17648 | EF=KCHG(I,1)/3D0 | |
17649 | WDTESU=WDTESU+EF**2*(WDTE(I,1)+WDTE(I,2)+WDTE(I,3)+ | |
17650 | & WDTE(I,4)) | |
17651 | 760 CONTINUE | |
17652 | FACQQ=COMFAC*AEM*AS*WDTESU*(TH2+UH2)/(TH*UH) | |
17653 | IF(KFAC(1,21)*KFAC(2,22).NE.0) THEN | |
17654 | NCHN=NCHN+1 | |
17655 | ISIG(NCHN,1)=21 | |
17656 | ISIG(NCHN,2)=22 | |
17657 | ISIG(NCHN,3)=1 | |
17658 | SIGH(NCHN)=FACQQ | |
17659 | ENDIF | |
17660 | IF(KFAC(1,22)*KFAC(2,21).NE.0) THEN | |
17661 | NCHN=NCHN+1 | |
17662 | ISIG(NCHN,1)=22 | |
17663 | ISIG(NCHN,2)=21 | |
17664 | ISIG(NCHN,3)=1 | |
17665 | SIGH(NCHN)=FACQQ | |
17666 | ENDIF | |
17667 | ||
17668 | ELSEIF(ISUB.EQ.55) THEN | |
17669 | C...g + Z -> f + fbar (g + Z -> q + qbar only) | |
17670 | ||
17671 | ELSEIF(ISUB.EQ.56) THEN | |
17672 | C...g + W -> f + f'bar (g + W -> q + q'bar only) | |
17673 | ||
17674 | ELSEIF(ISUB.EQ.57) THEN | |
17675 | C...g + h0 -> f + fbar (g + h0 -> q + qbar only) | |
17676 | ||
17677 | ELSEIF(ISUB.EQ.58) THEN | |
17678 | C...gamma + gamma -> f + fbar | |
17679 | CALL PYWIDT(22,SH,WDTP,WDTE) | |
17680 | WDTESU=0D0 | |
17681 | DO 770 I=1,MIN(12,MDCY(22,3)) | |
17682 | IF(I.LE.8) EF= KCHG(I,1)/3D0 | |
17683 | IF(I.GE.9) EF= KCHG(9+2*(I-8),1)/3D0 | |
17684 | WDTESU=WDTESU+EF**2*(WDTE(I,1)+WDTE(I,2)+WDTE(I,3)+ | |
17685 | & WDTE(I,4)) | |
17686 | 770 CONTINUE | |
17687 | FACFF=COMFAC*AEM**2*WDTESU*2D0*(TH2+UH2)/(TH*UH) | |
17688 | IF(KFAC(1,22)*KFAC(2,22).NE.0) THEN | |
17689 | NCHN=NCHN+1 | |
17690 | ISIG(NCHN,1)=22 | |
17691 | ISIG(NCHN,2)=22 | |
17692 | ISIG(NCHN,3)=1 | |
17693 | SIGH(NCHN)=FACFF | |
17694 | ENDIF | |
17695 | ||
17696 | ELSEIF(ISUB.EQ.59) THEN | |
17697 | C...gamma + Z0 -> f + fbar | |
17698 | ||
17699 | ELSEIF(ISUB.EQ.60) THEN | |
17700 | C...gamma + W+/- -> f + fbar' | |
17701 | ENDIF | |
17702 | ||
17703 | ELSEIF(ISUB.LE.70) THEN | |
17704 | IF(ISUB.EQ.61) THEN | |
17705 | C...gamma + h0 -> f + fbar | |
17706 | ||
17707 | ELSEIF(ISUB.EQ.62) THEN | |
17708 | C...Z0 + Z0 -> f + fbar | |
17709 | ||
17710 | ELSEIF(ISUB.EQ.63) THEN | |
17711 | C...Z0 + W+/- -> f + fbar' | |
17712 | ||
17713 | ELSEIF(ISUB.EQ.64) THEN | |
17714 | C...Z0 + h0 -> f + fbar | |
17715 | ||
17716 | ELSEIF(ISUB.EQ.65) THEN | |
17717 | C...W+ + W- -> f + fbar | |
17718 | ||
17719 | ELSEIF(ISUB.EQ.66) THEN | |
17720 | C...W+/- + h0 -> f + fbar' | |
17721 | ||
17722 | ELSEIF(ISUB.EQ.67) THEN | |
17723 | C...h0 + h0 -> f + fbar | |
17724 | ||
17725 | ELSEIF(ISUB.EQ.68) THEN | |
17726 | C...g + g -> g + g | |
17727 | FACGG1=COMFAC*AS**2*9D0/4D0*(SH2/TH2+2D0*SH/TH+3D0+2D0*TH/SH+ | |
17728 | & TH2/SH2)*FACA | |
17729 | FACGG2=COMFAC*AS**2*9D0/4D0*(UH2/SH2+2D0*UH/SH+3D0+2D0*SH/UH+ | |
17730 | & SH2/UH2)*FACA | |
17731 | FACGG3=COMFAC*AS**2*9D0/4D0*(TH2/UH2+2D0*TH/UH+3D0+2D0*UH/TH+ | |
17732 | & UH2/TH2) | |
17733 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 780 | |
17734 | NCHN=NCHN+1 | |
17735 | ISIG(NCHN,1)=21 | |
17736 | ISIG(NCHN,2)=21 | |
17737 | ISIG(NCHN,3)=1 | |
17738 | SIGH(NCHN)=0.5D0*FACGG1 | |
17739 | NCHN=NCHN+1 | |
17740 | ISIG(NCHN,1)=21 | |
17741 | ISIG(NCHN,2)=21 | |
17742 | ISIG(NCHN,3)=2 | |
17743 | SIGH(NCHN)=0.5D0*FACGG2 | |
17744 | NCHN=NCHN+1 | |
17745 | ISIG(NCHN,1)=21 | |
17746 | ISIG(NCHN,2)=21 | |
17747 | ISIG(NCHN,3)=3 | |
17748 | SIGH(NCHN)=0.5D0*FACGG3 | |
17749 | 780 CONTINUE | |
17750 | ||
17751 | ELSEIF(ISUB.EQ.69) THEN | |
17752 | C...gamma + gamma -> W+ + W- | |
17753 | SQMWE=MAX(0.5D0*SQMW,SQRT(SQM3*SQM4)) | |
17754 | FPROP=SH2/((SQMWE-TH)*(SQMWE-UH)) | |
17755 | FACWW=COMFAC*6D0*AEM**2*(1D0-FPROP*(4D0/3D0+2D0*SQMWE/SH)+ | |
17756 | & FPROP**2*(2D0/3D0+2D0*(SQMWE/SH)**2))*WIDS(24,1) | |
17757 | IF(KFAC(1,22)*KFAC(2,22).EQ.0) GOTO 790 | |
17758 | NCHN=NCHN+1 | |
17759 | ISIG(NCHN,1)=22 | |
17760 | ISIG(NCHN,2)=22 | |
17761 | ISIG(NCHN,3)=1 | |
17762 | SIGH(NCHN)=FACWW | |
17763 | 790 CONTINUE | |
17764 | ||
17765 | ELSEIF(ISUB.EQ.70) THEN | |
17766 | C...gamma + W+/- -> Z0 + W+/- | |
17767 | SQMWE=MAX(0.5D0*SQMW,SQRT(SQM3*SQM4)) | |
17768 | FPROP=(TH-SQMWE)**2/(-SH*(SQMWE-UH)) | |
17769 | FACZW=COMFAC*6D0*AEM**2*(XW1/XW)* | |
17770 | & (1D0-FPROP*(4D0/3D0+2D0*SQMWE/(TH-SQMWE))+ | |
17771 | & FPROP**2*(2D0/3D0+2D0*(SQMWE/(TH-SQMWE))**2))*WIDS(23,2) | |
17772 | DO 810 KCHW=1,-1,-2 | |
17773 | DO 800 ISDE=1,2 | |
17774 | IF(KFAC(ISDE,22)*KFAC(3-ISDE,24*KCHW).EQ.0) GOTO 800 | |
17775 | NCHN=NCHN+1 | |
17776 | ISIG(NCHN,ISDE)=22 | |
17777 | ISIG(NCHN,3-ISDE)=24*KCHW | |
17778 | ISIG(NCHN,3)=1 | |
17779 | SIGH(NCHN)=FACZW*WIDS(24,(5-KCHW)/2) | |
17780 | 800 CONTINUE | |
17781 | 810 CONTINUE | |
17782 | ENDIF | |
17783 | ||
17784 | ELSEIF(ISUB.LE.80) THEN | |
17785 | IF(ISUB.EQ.71) THEN | |
17786 | C...Z0 + Z0 -> Z0 + Z0 | |
17787 | IF(SH.LE.4.01D0*SQMZ) GOTO 840 | |
17788 | ||
17789 | IF(MSTP(46).LE.2) THEN | |
17790 | C...Exact scattering ME:s for on-mass-shell gauge bosons | |
17791 | BE2=1D0-4D0*SQMZ/SH | |
17792 | TH=-0.5D0*SH*BE2*(1D0-CTH) | |
17793 | UH=-0.5D0*SH*BE2*(1D0+CTH) | |
17794 | IF(MAX(TH,UH).GT.-1D0) GOTO 840 | |
17795 | SHANG=1D0/XW1*SQMW/SQMZ*(1D0+BE2)**2 | |
17796 | ASHRE=(SH-SQMH)/((SH-SQMH)**2+GMMH**2)*SHANG | |
17797 | ASHIM=-GMMH/((SH-SQMH)**2+GMMH**2)*SHANG | |
17798 | THANG=1D0/XW1*SQMW/SQMZ*(BE2-CTH)**2 | |
17799 | ATHRE=(TH-SQMH)/((TH-SQMH)**2+GMMH**2)*THANG | |
17800 | ATHIM=-GMMH/((TH-SQMH)**2+GMMH**2)*THANG | |
17801 | UHANG=1D0/XW1*SQMW/SQMZ*(BE2+CTH)**2 | |
17802 | AUHRE=(UH-SQMH)/((UH-SQMH)**2+GMMH**2)*UHANG | |
17803 | AUHIM=-GMMH/((UH-SQMH)**2+GMMH**2)*UHANG | |
17804 | FACZZ=COMFAC*1D0/(4096D0*PARU(1)**2*16D0*XW1**2)* | |
17805 | & (AEM/XW)**4*(SH/SQMW)**2*(SQMZ/SQMW)*SH2 | |
17806 | IF(MSTP(46).LE.0) FACZZ=FACZZ*(ASHRE**2+ASHIM**2) | |
17807 | IF(MSTP(46).EQ.1) FACZZ=FACZZ*((ASHRE+ATHRE+AUHRE)**2+ | |
17808 | & (ASHIM+ATHIM+AUHIM)**2) | |
17809 | IF(MSTP(46).EQ.2) FACZZ=0D0 | |
17810 | ||
17811 | ELSE | |
17812 | C...Strongly interacting Z_L/W_L model of Dobado, Herrero, Terron | |
17813 | FACZZ=COMFAC*(AEM/(16D0*PARU(1)*XW*XW1))**2*(64D0/9D0)* | |
17814 | & ABS(A00U+2.*A20U)**2 | |
17815 | ENDIF | |
17816 | FACZZ=FACZZ*WIDS(23,1) | |
17817 | ||
17818 | DO 830 I=MMIN1,MMAX1 | |
17819 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 830 | |
17820 | EI=KCHG(IABS(I),1)/3D0 | |
17821 | AI=SIGN(1D0,EI) | |
17822 | VI=AI-4D0*EI*XWV | |
17823 | AVI=AI**2+VI**2 | |
17824 | DO 820 J=MMIN2,MMAX2 | |
17825 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 820 | |
17826 | EJ=KCHG(IABS(J),1)/3D0 | |
17827 | AJ=SIGN(1D0,EJ) | |
17828 | VJ=AJ-4D0*EJ*XWV | |
17829 | AVJ=AJ**2+VJ**2 | |
17830 | NCHN=NCHN+1 | |
17831 | ISIG(NCHN,1)=I | |
17832 | ISIG(NCHN,2)=J | |
17833 | ISIG(NCHN,3)=1 | |
17834 | SIGH(NCHN)=0.5D0*FACZZ*AVI*AVJ | |
17835 | 820 CONTINUE | |
17836 | 830 CONTINUE | |
17837 | 840 CONTINUE | |
17838 | ||
17839 | ELSEIF(ISUB.EQ.72) THEN | |
17840 | C...Z0 + Z0 -> W+ + W- | |
17841 | IF(SH.LE.4.01D0*SQMZ) GOTO 870 | |
17842 | ||
17843 | IF(MSTP(46).LE.2) THEN | |
17844 | C...Exact scattering ME:s for on-mass-shell gauge bosons | |
17845 | BE2=SQRT((1D0-4D0*SQMW/SH)*(1D0-4D0*SQMZ/SH)) | |
17846 | CTH2=CTH**2 | |
17847 | TH=-0.5D0*SH*(1D0-2D0*(SQMW+SQMZ)/SH-BE2*CTH) | |
17848 | UH=-0.5D0*SH*(1D0-2D0*(SQMW+SQMZ)/SH+BE2*CTH) | |
17849 | IF(MAX(TH,UH).GT.-1D0) GOTO 870 | |
17850 | SHANG=4D0*SQRT(SQMW/(SQMZ*XW1))*(1D0-2D0*SQMW/SH)* | |
17851 | & (1D0-2D0*SQMZ/SH) | |
17852 | ASHRE=(SH-SQMH)/((SH-SQMH)**2+GMMH**2)*SHANG | |
17853 | ASHIM=-GMMH/((SH-SQMH)**2+GMMH**2)*SHANG | |
17854 | ATWRE=XW1/SQMZ*SH/(TH-SQMW)*((CTH-BE2)**2*(3D0/2D0+BE2/2D0* | |
17855 | & CTH-(SQMW+SQMZ)/SH+(SQMW-SQMZ)**2/(SH*SQMW))+4D0* | |
17856 | & ((SQMW+SQMZ)/SH*(1D0-3D0*CTH2)+8D0*SQMW*SQMZ/SH2* | |
17857 | & (2D0*CTH2-1D0)+4D0*(SQMW**2+SQMZ**2)/SH2*CTH2+ | |
17858 | & 2D0*(SQMW+SQMZ)/SH*BE2*CTH)) | |
17859 | ATWIM=0D0 | |
17860 | AUWRE=XW1/SQMZ*SH/(UH-SQMW)*((CTH+BE2)**2*(3D0/2D0-BE2/2D0* | |
17861 | & CTH-(SQMW+SQMZ)/SH+(SQMW-SQMZ)**2/(SH*SQMW))+4D0* | |
17862 | & ((SQMW+SQMZ)/SH*(1D0-3D0*CTH2)+8D0*SQMW*SQMZ/SH2* | |
17863 | & (2D0*CTH2-1D0)+4D0*(SQMW**2+SQMZ**2)/SH2*CTH2- | |
17864 | & 2D0*(SQMW+SQMZ)/SH*BE2*CTH)) | |
17865 | AUWIM=0D0 | |
17866 | A4RE=2D0*XW1/SQMZ*(3D0-CTH2-4D0*(SQMW+SQMZ)/SH) | |
17867 | A4IM=0D0 | |
17868 | FACWW=COMFAC*1D0/(4096D0*PARU(1)**2*16D0*XW1**2)* | |
17869 | & (AEM/XW)**4*(SH/SQMW)**2*(SQMZ/SQMW)*SH2 | |
17870 | IF(MSTP(46).LE.0) FACWW=FACWW*(ASHRE**2+ASHIM**2) | |
17871 | IF(MSTP(46).EQ.1) FACWW=FACWW*((ASHRE+ATWRE+AUWRE+A4RE)**2+ | |
17872 | & (ASHIM+ATWIM+AUWIM+A4IM)**2) | |
17873 | IF(MSTP(46).EQ.2) FACWW=FACWW*((ATWRE+AUWRE+A4RE)**2+ | |
17874 | & (ATWIM+AUWIM+A4IM)**2) | |
17875 | ||
17876 | ELSE | |
17877 | C...Strongly interacting Z_L/W_L model of Dobado, Herrero, Terron | |
17878 | FACWW=COMFAC*(AEM/(16D0*PARU(1)*XW*XW1))**2*(64D0/9D0)* | |
17879 | & ABS(A00U-A20U)**2 | |
17880 | ENDIF | |
17881 | FACWW=FACWW*WIDS(24,1) | |
17882 | ||
17883 | DO 860 I=MMIN1,MMAX1 | |
17884 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 860 | |
17885 | EI=KCHG(IABS(I),1)/3D0 | |
17886 | AI=SIGN(1D0,EI) | |
17887 | VI=AI-4D0*EI*XWV | |
17888 | AVI=AI**2+VI**2 | |
17889 | DO 850 J=MMIN2,MMAX2 | |
17890 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 850 | |
17891 | EJ=KCHG(IABS(J),1)/3D0 | |
17892 | AJ=SIGN(1D0,EJ) | |
17893 | VJ=AJ-4D0*EJ*XWV | |
17894 | AVJ=AJ**2+VJ**2 | |
17895 | NCHN=NCHN+1 | |
17896 | ISIG(NCHN,1)=I | |
17897 | ISIG(NCHN,2)=J | |
17898 | ISIG(NCHN,3)=1 | |
17899 | SIGH(NCHN)=FACWW*AVI*AVJ | |
17900 | 850 CONTINUE | |
17901 | 860 CONTINUE | |
17902 | 870 CONTINUE | |
17903 | ||
17904 | ELSEIF(ISUB.EQ.73) THEN | |
17905 | C...Z0 + W+/- -> Z0 + W+/- | |
17906 | IF(SH.LE.2D0*SQMZ+2D0*SQMW) GOTO 900 | |
17907 | ||
17908 | IF(MSTP(46).LE.2) THEN | |
17909 | C...Exact scattering ME:s for on-mass-shell gauge bosons | |
17910 | BE2=1D0-2D0*(SQMZ+SQMW)/SH+((SQMZ-SQMW)/SH)**2 | |
17911 | EP1=1D0-(SQMZ-SQMW)/SH | |
17912 | EP2=1D0+(SQMZ-SQMW)/SH | |
17913 | TH=-0.5D0*SH*BE2*(1D0-CTH) | |
17914 | UH=(SQMZ-SQMW)**2/SH-0.5D0*SH*BE2*(1D0+CTH) | |
17915 | IF(MAX(TH,UH).GT.-1D0) GOTO 900 | |
17916 | THANG=(BE2-EP1*CTH)*(BE2-EP2*CTH) | |
17917 | ATHRE=(TH-SQMH)/((TH-SQMH)**2+GMMH**2)*THANG | |
17918 | ATHIM=-GMMH/((TH-SQMH)**2+GMMH**2)*THANG | |
17919 | ASWRE=-XW1/SQMZ*SH/(SH-SQMW)*(-BE2*(EP1+EP2)**4*CTH+ | |
17920 | & 1D0/4D0*(BE2+EP1*EP2)**2*((EP1-EP2)**2-4D0*BE2*CTH)+ | |
17921 | & 2D0*BE2*(BE2+EP1*EP2)*(EP1+EP2)**2*CTH- | |
17922 | & 1D0/16D0*SH/SQMW*(EP1**2-EP2**2)**2*(BE2+EP1*EP2)**2) | |
17923 | ASWIM=0D0 | |
17924 | AUWRE=XW1/SQMZ*SH/(UH-SQMW)*(-BE2*(EP2+EP1*CTH)* | |
17925 | & (EP1+EP2*CTH)*(BE2+EP1*EP2)+BE2*(EP2+EP1*CTH)* | |
17926 | & (BE2+EP1*EP2*CTH)*(2D0*EP2-EP2*CTH+EP1)- | |
17927 | & BE2*(EP2+EP1*CTH)**2*(BE2-EP2**2*CTH)-1D0/8D0* | |
17928 | & (BE2+EP1*EP2*CTH)**2*((EP1+EP2)**2+2D0*BE2*(1D0-CTH))+ | |
17929 | & 1D0/32D0*SH/SQMW*(BE2+EP1*EP2*CTH)**2* | |
17930 | & (EP1**2-EP2**2)**2-BE2*(EP1+EP2*CTH)*(EP2+EP1*CTH)* | |
17931 | & (BE2+EP1*EP2)+BE2*(EP1+EP2*CTH)*(BE2+EP1*EP2*CTH)* | |
17932 | & (2D0*EP1-EP1*CTH+EP2)-BE2*(EP1+EP2*CTH)**2* | |
17933 | & (BE2-EP1**2*CTH)-1D0/8D0*(BE2+EP1*EP2*CTH)**2* | |
17934 | & ((EP1+EP2)**2+2D0*BE2*(1D0-CTH))+1D0/32D0*SH/SQMW* | |
17935 | & (BE2+EP1*EP2*CTH)**2*(EP1**2-EP2**2)**2) | |
17936 | AUWIM=0D0 | |
17937 | A4RE=XW1/SQMZ*(EP1**2*EP2**2*(CTH**2-1D0)- | |
17938 | & 2D0*BE2*(EP1**2+EP2**2+EP1*EP2)*CTH-2D0*BE2*EP1*EP2) | |
17939 | A4IM=0D0 | |
17940 | FACZW=COMFAC*1D0/(4096D0*PARU(1)**2*4D0*XW1)*(AEM/XW)**4* | |
17941 | & (SH/SQMW)**2*SQRT(SQMZ/SQMW)*SH2 | |
17942 | IF(MSTP(46).LE.0) FACZW=0D0 | |
17943 | IF(MSTP(46).EQ.1) FACZW=FACZW*((ATHRE+ASWRE+AUWRE+A4RE)**2+ | |
17944 | & (ATHIM+ASWIM+AUWIM+A4IM)**2) | |
17945 | IF(MSTP(46).EQ.2) FACZW=FACZW*((ASWRE+AUWRE+A4RE)**2+ | |
17946 | & (ASWIM+AUWIM+A4IM)**2) | |
17947 | ||
17948 | ELSE | |
17949 | C...Strongly interacting Z_L/W_L model of Dobado, Herrero, Terron | |
17950 | FACZW=COMFAC*AEM**2/(64D0*PARU(1)**2*XW**2*XW1)*16D0* | |
17951 | & ABS(A20U+3.*A11U*SNGL(CTH))**2 | |
17952 | ENDIF | |
17953 | FACZW=FACZW*WIDS(23,2) | |
17954 | ||
17955 | DO 890 I=MMIN1,MMAX1 | |
17956 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 890 | |
17957 | EI=KCHG(IABS(I),1)/3D0 | |
17958 | AI=SIGN(1D0,EI) | |
17959 | VI=AI-4D0*EI*XWV | |
17960 | AVI=AI**2+VI**2 | |
17961 | KCHWI=ISIGN(1,KCHG(IABS(I),1)*ISIGN(1,I)) | |
17962 | DO 880 J=MMIN2,MMAX2 | |
17963 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 880 | |
17964 | EJ=KCHG(IABS(J),1)/3D0 | |
17965 | AJ=SIGN(1D0,EJ) | |
17966 | VJ=AI-4D0*EJ*XWV | |
17967 | AVJ=AJ**2+VJ**2 | |
17968 | KCHWJ=ISIGN(1,KCHG(IABS(J),1)*ISIGN(1,J)) | |
17969 | NCHN=NCHN+1 | |
17970 | ISIG(NCHN,1)=I | |
17971 | ISIG(NCHN,2)=J | |
17972 | ISIG(NCHN,3)=1 | |
17973 | SIGH(NCHN)=FACZW*AVI*VINT(180+J)*WIDS(24,(5-KCHWJ)/2) | |
17974 | NCHN=NCHN+1 | |
17975 | ISIG(NCHN,1)=I | |
17976 | ISIG(NCHN,2)=J | |
17977 | ISIG(NCHN,3)=2 | |
17978 | SIGH(NCHN)=FACZW*VINT(180+I)*WIDS(24,(5-KCHWI)/2)*AVJ | |
17979 | 880 CONTINUE | |
17980 | 890 CONTINUE | |
17981 | 900 CONTINUE | |
17982 | ||
17983 | ELSEIF(ISUB.EQ.75) THEN | |
17984 | C...W+ + W- -> gamma + gamma | |
17985 | ||
17986 | ELSEIF(ISUB.EQ.76) THEN | |
17987 | C...W+ + W- -> Z0 + Z0 | |
17988 | IF(SH.LE.4.01D0*SQMZ) GOTO 930 | |
17989 | ||
17990 | IF(MSTP(46).LE.2) THEN | |
17991 | C...Exact scattering ME:s for on-mass-shell gauge bosons | |
17992 | BE2=SQRT((1D0-4D0*SQMW/SH)*(1D0-4D0*SQMZ/SH)) | |
17993 | CTH2=CTH**2 | |
17994 | TH=-0.5D0*SH*(1D0-2D0*(SQMW+SQMZ)/SH-BE2*CTH) | |
17995 | UH=-0.5D0*SH*(1D0-2D0*(SQMW+SQMZ)/SH+BE2*CTH) | |
17996 | IF(MAX(TH,UH).GT.-1D0) GOTO 930 | |
17997 | SHANG=4D0*SQRT(SQMW/(SQMZ*XW1))*(1D0-2D0*SQMW/SH)* | |
17998 | & (1D0-2D0*SQMZ/SH) | |
17999 | ASHRE=(SH-SQMH)/((SH-SQMH)**2+GMMH**2)*SHANG | |
18000 | ASHIM=-GMMH/((SH-SQMH)**2+GMMH**2)*SHANG | |
18001 | ATWRE=XW1/SQMZ*SH/(TH-SQMW)*((CTH-BE2)**2*(3D0/2D0+BE2/2D0* | |
18002 | & CTH-(SQMW+SQMZ)/SH+(SQMW-SQMZ)**2/(SH*SQMW))+4D0* | |
18003 | & ((SQMW+SQMZ)/SH*(1D0-3D0*CTH2)+8D0*SQMW*SQMZ/SH2* | |
18004 | & (2D0*CTH2-1D0)+4D0*(SQMW**2+SQMZ**2)/SH2*CTH2+ | |
18005 | & 2D0*(SQMW+SQMZ)/SH*BE2*CTH)) | |
18006 | ATWIM=0D0 | |
18007 | AUWRE=XW1/SQMZ*SH/(UH-SQMW)*((CTH+BE2)**2*(3D0/2D0-BE2/2D0* | |
18008 | & CTH-(SQMW+SQMZ)/SH+(SQMW-SQMZ)**2/(SH*SQMW))+4D0* | |
18009 | & ((SQMW+SQMZ)/SH*(1D0-3D0*CTH2)+8D0*SQMW*SQMZ/SH2* | |
18010 | & (2D0*CTH2-1D0)+4D0*(SQMW**2+SQMZ**2)/SH2*CTH2- | |
18011 | & 2D0*(SQMW+SQMZ)/SH*BE2*CTH)) | |
18012 | AUWIM=0D0 | |
18013 | A4RE=2D0*XW1/SQMZ*(3D0-CTH2-4D0*(SQMW+SQMZ)/SH) | |
18014 | A4IM=0D0 | |
18015 | FACZZ=COMFAC*1D0/(4096D0*PARU(1)**2)*(AEM/XW)**4* | |
18016 | & (SH/SQMW)**2*SH2 | |
18017 | IF(MSTP(46).LE.0) FACZZ=FACZZ*(ASHRE**2+ASHIM**2) | |
18018 | IF(MSTP(46).EQ.1) FACZZ=FACZZ*((ASHRE+ATWRE+AUWRE+A4RE)**2+ | |
18019 | & (ASHIM+ATWIM+AUWIM+A4IM)**2) | |
18020 | IF(MSTP(46).EQ.2) FACZZ=FACZZ*((ATWRE+AUWRE+A4RE)**2+ | |
18021 | & (ATWIM+AUWIM+A4IM)**2) | |
18022 | ||
18023 | ELSE | |
18024 | C...Strongly interacting Z_L/W_L model of Dobado, Herrero, Terron | |
18025 | FACZZ=COMFAC*(AEM/(4D0*PARU(1)*XW))**2*(64D0/9D0)* | |
18026 | & ABS(A00U-A20U)**2 | |
18027 | ENDIF | |
18028 | FACZZ=FACZZ*WIDS(23,1) | |
18029 | ||
18030 | DO 920 I=MMIN1,MMAX1 | |
18031 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 920 | |
18032 | EI=SIGN(1D0,DBLE(I))*KCHG(IABS(I),1) | |
18033 | DO 910 J=MMIN2,MMAX2 | |
18034 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 910 | |
18035 | EJ=SIGN(1D0,DBLE(J))*KCHG(IABS(J),1) | |
18036 | IF(EI*EJ.GT.0D0) GOTO 910 | |
18037 | NCHN=NCHN+1 | |
18038 | ISIG(NCHN,1)=I | |
18039 | ISIG(NCHN,2)=J | |
18040 | ISIG(NCHN,3)=1 | |
18041 | SIGH(NCHN)=0.5D0*FACZZ*VINT(180+I)*VINT(180+J) | |
18042 | 910 CONTINUE | |
18043 | 920 CONTINUE | |
18044 | 930 CONTINUE | |
18045 | ||
18046 | ELSEIF(ISUB.EQ.77) THEN | |
18047 | C...W+/- + W+/- -> W+/- + W+/- | |
18048 | IF(SH.LE.4.01D0*SQMW) GOTO 960 | |
18049 | ||
18050 | IF(MSTP(46).LE.2) THEN | |
18051 | C...Exact scattering ME:s for on-mass-shell gauge bosons | |
18052 | BE2=1D0-4D0*SQMW/SH | |
18053 | BE4=BE2**2 | |
18054 | CTH2=CTH**2 | |
18055 | CTH3=CTH**3 | |
18056 | TH=-0.5D0*SH*BE2*(1D0-CTH) | |
18057 | UH=-0.5D0*SH*BE2*(1D0+CTH) | |
18058 | IF(MAX(TH,UH).GT.-1D0) GOTO 960 | |
18059 | SHANG=(1D0+BE2)**2 | |
18060 | ASHRE=(SH-SQMH)/((SH-SQMH)**2+GMMH**2)*SHANG | |
18061 | ASHIM=-GMMH/((SH-SQMH)**2+GMMH**2)*SHANG | |
18062 | THANG=(BE2-CTH)**2 | |
18063 | ATHRE=(TH-SQMH)/((TH-SQMH)**2+GMMH**2)*THANG | |
18064 | ATHIM=-GMMH/((TH-SQMH)**2+GMMH**2)*THANG | |
18065 | UHANG=(BE2+CTH)**2 | |
18066 | AUHRE=(UH-SQMH)/((UH-SQMH)**2+GMMH**2)*UHANG | |
18067 | AUHIM=-GMMH/((UH-SQMH)**2+GMMH**2)*UHANG | |
18068 | SGZANG=1D0/SQMW*BE2*(3D0-BE2)**2*CTH | |
18069 | ASGRE=XW*SGZANG | |
18070 | ASGIM=0D0 | |
18071 | ASZRE=XW1*SH/(SH-SQMZ)*SGZANG | |
18072 | ASZIM=0D0 | |
18073 | TGZANG=1D0/SQMW*(BE2*(4D0-2D0*BE2+BE4)+BE2*(4D0-10D0*BE2+ | |
18074 | & BE4)*CTH+(2D0-11D0*BE2+10D0*BE4)*CTH2+BE2*CTH3) | |
18075 | ATGRE=0.5D0*XW*SH/TH*TGZANG | |
18076 | ATGIM=0D0 | |
18077 | ATZRE=0.5D0*XW1*SH/(TH-SQMZ)*TGZANG | |
18078 | ATZIM=0D0 | |
18079 | UGZANG=1D0/SQMW*(BE2*(4D0-2D0*BE2+BE4)-BE2*(4D0-10D0*BE2+ | |
18080 | & BE4)*CTH+(2D0-11D0*BE2+10D0*BE4)*CTH2-BE2*CTH3) | |
18081 | AUGRE=0.5D0*XW*SH/UH*UGZANG | |
18082 | AUGIM=0D0 | |
18083 | AUZRE=0.5D0*XW1*SH/(UH-SQMZ)*UGZANG | |
18084 | AUZIM=0D0 | |
18085 | A4ARE=1D0/SQMW*(1D0+2D0*BE2-6D0*BE2*CTH-CTH2) | |
18086 | A4AIM=0D0 | |
18087 | A4SRE=2D0/SQMW*(1D0+2D0*BE2-CTH2) | |
18088 | A4SIM=0D0 | |
18089 | FWW=COMFAC*1D0/(4096D0*PARU(1)**2)*(AEM/XW)**4* | |
18090 | & (SH/SQMW)**2*SH2 | |
18091 | IF(MSTP(46).LE.0) THEN | |
18092 | AWWARE=ASHRE | |
18093 | AWWAIM=ASHIM | |
18094 | AWWSRE=0D0 | |
18095 | AWWSIM=0D0 | |
18096 | ELSEIF(MSTP(46).EQ.1) THEN | |
18097 | AWWARE=ASHRE+ATHRE+ASGRE+ASZRE+ATGRE+ATZRE+A4ARE | |
18098 | AWWAIM=ASHIM+ATHIM+ASGIM+ASZIM+ATGIM+ATZIM+A4AIM | |
18099 | AWWSRE=-ATHRE-AUHRE+ATGRE+ATZRE+AUGRE+AUZRE+A4SRE | |
18100 | AWWSIM=-ATHIM-AUHIM+ATGIM+ATZIM+AUGIM+AUZIM+A4SIM | |
18101 | ELSE | |
18102 | AWWARE=ASGRE+ASZRE+ATGRE+ATZRE+A4ARE | |
18103 | AWWAIM=ASGIM+ASZIM+ATGIM+ATZIM+A4AIM | |
18104 | AWWSRE=ATGRE+ATZRE+AUGRE+AUZRE+A4SRE | |
18105 | AWWSIM=ATGIM+ATZIM+AUGIM+AUZIM+A4SIM | |
18106 | ENDIF | |
18107 | AWWA2=AWWARE**2+AWWAIM**2 | |
18108 | AWWS2=AWWSRE**2+AWWSIM**2 | |
18109 | ||
18110 | ELSE | |
18111 | C...Strongly interacting Z_L/W_L model of Dobado, Herrero, Terron | |
18112 | FWWA=COMFAC*(AEM/(4D0*PARU(1)*XW))**2*(64D0/9D0)* | |
18113 | & ABS(A00U+0.5*A20U+4.5*A11U*SNGL(CTH))**2 | |
18114 | FWWS=COMFAC*(AEM/(4D0*PARU(1)*XW))**2*64D0*ABS(A20U)**2 | |
18115 | ENDIF | |
18116 | ||
18117 | DO 950 I=MMIN1,MMAX1 | |
18118 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 950 | |
18119 | EI=SIGN(1D0,DBLE(I))*KCHG(IABS(I),1) | |
18120 | DO 940 J=MMIN2,MMAX2 | |
18121 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 940 | |
18122 | EJ=SIGN(1D0,DBLE(J))*KCHG(IABS(J),1) | |
18123 | IF(EI*EJ.LT.0D0) THEN | |
18124 | C...W+W- | |
18125 | IF(MSTP(45).EQ.1) GOTO 940 | |
18126 | IF(MSTP(46).LE.2) FACWW=FWW*AWWA2*WIDS(24,1) | |
18127 | IF(MSTP(46).GE.3) FACWW=FWWA*WIDS(24,1) | |
18128 | ELSE | |
18129 | C...W+W+/W-W- | |
18130 | IF(MSTP(45).EQ.2) GOTO 940 | |
18131 | IF(MSTP(46).LE.2) FACWW=FWW*AWWS2 | |
18132 | IF(MSTP(46).GE.3) FACWW=FWWS | |
18133 | IF(EI.GT.0D0) FACWW=FACWW*WIDS(24,4) | |
18134 | IF(EI.LT.0D0) FACWW=FACWW*WIDS(24,5) | |
18135 | ENDIF | |
18136 | NCHN=NCHN+1 | |
18137 | ISIG(NCHN,1)=I | |
18138 | ISIG(NCHN,2)=J | |
18139 | ISIG(NCHN,3)=1 | |
18140 | SIGH(NCHN)=FACWW*VINT(180+I)*VINT(180+J) | |
18141 | IF(EI*EJ.GT.0D0) SIGH(NCHN)=0.5D0*SIGH(NCHN) | |
18142 | 940 CONTINUE | |
18143 | 950 CONTINUE | |
18144 | 960 CONTINUE | |
18145 | ||
18146 | ELSEIF(ISUB.EQ.78) THEN | |
18147 | C...W+/- + h0 -> W+/- + h0 | |
18148 | ||
18149 | ELSEIF(ISUB.EQ.79) THEN | |
18150 | C...h0 + h0 -> h0 + h0 | |
18151 | ||
18152 | ELSEIF(ISUB.EQ.80) THEN | |
18153 | C...q + gamma -> q' + pi+/- | |
18154 | FQPI=COMFAC*(2D0*AEM/9D0)*(-SH/TH)*(1D0/SH2+1D0/TH2) | |
18155 | ASSH=PYALPS(MAX(0.5D0,0.5D0*SH)) | |
18156 | Q2FPSH=0.55D0/LOG(MAX(2D0,2D0*SH)) | |
18157 | DELSH=UH*SQRT(ASSH*Q2FPSH) | |
18158 | ASUH=PYALPS(MAX(0.5D0,-0.5D0*UH)) | |
18159 | Q2FPUH=0.55D0/LOG(MAX(2D0,-2D0*UH)) | |
18160 | DELUH=SH*SQRT(ASUH*Q2FPUH) | |
18161 | DO 980 I=MAX(-2,MMINA),MIN(2,MMAXA) | |
18162 | IF(I.EQ.0) GOTO 980 | |
18163 | EI=KCHG(IABS(I),1)/3D0 | |
18164 | EJ=SIGN(1D0-ABS(EI),EI) | |
18165 | DO 970 ISDE=1,2 | |
18166 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,22).EQ.0) GOTO 970 | |
18167 | IF(ISDE.EQ.2.AND.KFAC(1,22)*KFAC(2,I).EQ.0) GOTO 970 | |
18168 | NCHN=NCHN+1 | |
18169 | ISIG(NCHN,ISDE)=I | |
18170 | ISIG(NCHN,3-ISDE)=22 | |
18171 | ISIG(NCHN,3)=1 | |
18172 | SIGH(NCHN)=FQPI*(EI*DELSH+EJ*DELUH)**2 | |
18173 | 970 CONTINUE | |
18174 | 980 CONTINUE | |
18175 | ||
18176 | ENDIF | |
18177 | ||
18178 | C...C: 2 -> 2, tree diagrams with masses | |
18179 | ||
18180 | ELSEIF(ISUB.LE.90) THEN | |
18181 | IF(ISUB.EQ.81) THEN | |
18182 | C...q + qbar -> Q + Qbar | |
18183 | FACQQB=COMFAC*AS**2*4D0/9D0*(((TH-SQM3)**2+ | |
18184 | & (UH-SQM3)**2)/SH2+2D0*SQM3/SH) | |
18185 | IF(MSTP(35).GE.1) FACQQB=FACQQB*PYHFTH(SH,SQM3,0D0) | |
18186 | WID2=1D0 | |
18187 | IF(MINT(55).EQ.6) WID2=WIDS(6,1) | |
18188 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2=WIDS(MINT(55),1) | |
18189 | FACQQB=FACQQB*WID2 | |
18190 | DO 990 I=MMINA,MMAXA | |
18191 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
18192 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 990 | |
18193 | NCHN=NCHN+1 | |
18194 | ISIG(NCHN,1)=I | |
18195 | ISIG(NCHN,2)=-I | |
18196 | ISIG(NCHN,3)=1 | |
18197 | SIGH(NCHN)=FACQQB | |
18198 | 990 CONTINUE | |
18199 | ||
18200 | ELSEIF(ISUB.EQ.82) THEN | |
18201 | C...g + g -> Q + Qbar | |
18202 | IF(MSTP(34).EQ.0) THEN | |
18203 | FACQQ1=COMFAC*FACA*AS**2*(1D0/6D0)*((UH-SQM3)/(TH-SQM3)- | |
18204 | & 2D0*(UH-SQM3)**2/SH2+4D0*(SQM3/SH)*(TH*UH-SQM3**2)/ | |
18205 | & (TH-SQM3)**2) | |
18206 | FACQQ2=COMFAC*FACA*AS**2*(1D0/6D0)*((TH-SQM3)/(UH-SQM3)- | |
18207 | & 2D0*(TH-SQM3)**2/SH2+4D0*(SQM3/SH)*(TH*UH-SQM3**2)/ | |
18208 | & (UH-SQM3)**2) | |
18209 | ELSE | |
18210 | FACQQ1=COMFAC*FACA*AS**2*(1D0/6D0)*((UH-SQM3)/(TH-SQM3)- | |
18211 | & 2.25D0*(UH-SQM3)**2/SH2+4.5D0*(SQM3/SH)*(TH*UH-SQM3**2)/ | |
18212 | & (TH-SQM3)**2+0.5D0*SQM3*TH/(TH-SQM3)**2-SQM3**2/ | |
18213 | & (SH*(TH-SQM3))) | |
18214 | FACQQ2=COMFAC*FACA*AS**2*(1D0/6D0)*((TH-SQM3)/(UH-SQM3)- | |
18215 | & 2.25D0*(TH-SQM3)**2/SH2+4.5D0*(SQM3/SH)*(TH*UH-SQM3**2)/ | |
18216 | & (UH-SQM3)**2+0.5D0*SQM3*UH/(UH-SQM3)**2-SQM3**2/ | |
18217 | & (SH*(UH-SQM3))) | |
18218 | ENDIF | |
18219 | IF(MSTP(35).GE.1) THEN | |
18220 | FATRE=PYHFTH(SH,SQM3,2D0/7D0) | |
18221 | FACQQ1=FACQQ1*FATRE | |
18222 | FACQQ2=FACQQ2*FATRE | |
18223 | ENDIF | |
18224 | WID2=1D0 | |
18225 | IF(MINT(55).EQ.6) WID2=WIDS(6,1) | |
18226 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2=WIDS(MINT(55),1) | |
18227 | FACQQ1=FACQQ1*WID2 | |
18228 | FACQQ2=FACQQ2*WID2 | |
18229 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1000 | |
18230 | NCHN=NCHN+1 | |
18231 | ISIG(NCHN,1)=21 | |
18232 | ISIG(NCHN,2)=21 | |
18233 | ISIG(NCHN,3)=1 | |
18234 | SIGH(NCHN)=FACQQ1 | |
18235 | NCHN=NCHN+1 | |
18236 | ISIG(NCHN,1)=21 | |
18237 | ISIG(NCHN,2)=21 | |
18238 | ISIG(NCHN,3)=2 | |
18239 | SIGH(NCHN)=FACQQ2 | |
18240 | 1000 CONTINUE | |
18241 | ||
18242 | ELSEIF(ISUB.EQ.83) THEN | |
18243 | C...f + q -> f' + Q | |
18244 | FACQQS=COMFAC*(0.5D0*AEM/XW)**2*SH*(SH-SQM3)/(SQMW-TH)**2 | |
18245 | FACQQU=COMFAC*(0.5D0*AEM/XW)**2*UH*(UH-SQM3)/(SQMW-TH)**2 | |
18246 | DO 1020 I=MMIN1,MMAX1 | |
18247 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1020 | |
18248 | DO 1010 J=MMIN2,MMAX2 | |
18249 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1010 | |
18250 | IF(I*J.GT.0.AND.MOD(IABS(I+J),2).EQ.0) GOTO 1010 | |
18251 | IF(I*J.LT.0.AND.MOD(IABS(I+J),2).EQ.1) GOTO 1010 | |
18252 | IF(IABS(I).LT.MINT(55).AND.MOD(IABS(I+MINT(55)),2).EQ.1) | |
18253 | & THEN | |
18254 | NCHN=NCHN+1 | |
18255 | ISIG(NCHN,1)=I | |
18256 | ISIG(NCHN,2)=J | |
18257 | ISIG(NCHN,3)=1 | |
18258 | IF(MOD(MINT(55),2).EQ.0) FACCKM=VCKM(MINT(55)/2, | |
18259 | & (IABS(I)+1)/2)*VINT(180+J) | |
18260 | IF(MOD(MINT(55),2).EQ.1) FACCKM=VCKM(IABS(I)/2, | |
18261 | & (MINT(55)+1)/2)*VINT(180+J) | |
18262 | WID2=1D0 | |
18263 | IF(I.GT.0) THEN | |
18264 | IF(MINT(55).EQ.6) WID2=WIDS(6,2) | |
18265 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2= | |
18266 | & WIDS(MINT(55),2) | |
18267 | ELSE | |
18268 | IF(MINT(55).EQ.6) WID2=WIDS(6,3) | |
18269 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2= | |
18270 | & WIDS(MINT(55),3) | |
18271 | ENDIF | |
18272 | IF(I*J.GT.0) SIGH(NCHN)=FACQQS*FACCKM*WID2 | |
18273 | IF(I*J.LT.0) SIGH(NCHN)=FACQQU*FACCKM*WID2 | |
18274 | ENDIF | |
18275 | IF(IABS(J).LT.MINT(55).AND.MOD(IABS(J+MINT(55)),2).EQ.1) | |
18276 | & THEN | |
18277 | NCHN=NCHN+1 | |
18278 | ISIG(NCHN,1)=I | |
18279 | ISIG(NCHN,2)=J | |
18280 | ISIG(NCHN,3)=2 | |
18281 | IF(MOD(MINT(55),2).EQ.0) FACCKM=VCKM(MINT(55)/2, | |
18282 | & (IABS(J)+1)/2)*VINT(180+I) | |
18283 | IF(MOD(MINT(55),2).EQ.1) FACCKM=VCKM(IABS(J)/2, | |
18284 | & (MINT(55)+1)/2)*VINT(180+I) | |
18285 | IF(J.GT.0) THEN | |
18286 | IF(MINT(55).EQ.6) WID2=WIDS(6,2) | |
18287 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2= | |
18288 | & WIDS(MINT(55),2) | |
18289 | ELSE | |
18290 | IF(MINT(55).EQ.6) WID2=WIDS(6,3) | |
18291 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2= | |
18292 | & WIDS(MINT(55),3) | |
18293 | ENDIF | |
18294 | IF(I*J.GT.0) SIGH(NCHN)=FACQQS*FACCKM*WID2 | |
18295 | IF(I*J.LT.0) SIGH(NCHN)=FACQQU*FACCKM*WID2 | |
18296 | ENDIF | |
18297 | 1010 CONTINUE | |
18298 | 1020 CONTINUE | |
18299 | ||
18300 | ELSEIF(ISUB.EQ.84) THEN | |
18301 | C...g + gamma -> Q + Qbar | |
18302 | FMTU=SQM3/(SQM3-TH)+SQM3/(SQM3-UH) | |
18303 | FACQQ=COMFAC*AS*AEM*(KCHG(IABS(MINT(55)),1)/3D0)**2* | |
18304 | & ((SQM3-TH)/(SQM3-UH)+(SQM3-UH)/(SQM3-TH)+4D0*FMTU*(1D0-FMTU)) | |
18305 | IF(MSTP(35).GE.1) FACQQ=FACQQ*PYHFTH(SH,SQM3,0D0) | |
18306 | WID2=1D0 | |
18307 | IF(MINT(55).EQ.6) WID2=WIDS(6,1) | |
18308 | IF(MINT(55).EQ.7.OR.MINT(55).EQ.8) WID2=WIDS(MINT(55),1) | |
18309 | FACQQ=FACQQ*WID2 | |
18310 | IF(KFAC(1,21)*KFAC(2,22).NE.0) THEN | |
18311 | NCHN=NCHN+1 | |
18312 | ISIG(NCHN,1)=21 | |
18313 | ISIG(NCHN,2)=22 | |
18314 | ISIG(NCHN,3)=1 | |
18315 | SIGH(NCHN)=FACQQ | |
18316 | ENDIF | |
18317 | IF(KFAC(1,22)*KFAC(2,21).NE.0) THEN | |
18318 | NCHN=NCHN+1 | |
18319 | ISIG(NCHN,1)=22 | |
18320 | ISIG(NCHN,2)=21 | |
18321 | ISIG(NCHN,3)=1 | |
18322 | SIGH(NCHN)=FACQQ | |
18323 | ENDIF | |
18324 | ||
18325 | ELSEIF(ISUB.EQ.85) THEN | |
18326 | C...gamma + gamma -> F + Fbar (heavy fermion, quark or lepton) | |
18327 | FMTU=SQM3/(SQM3-TH)+SQM3/(SQM3-UH) | |
18328 | FACFF=COMFAC*AEM**2*(KCHG(IABS(MINT(56)),1)/3D0)**4*2D0* | |
18329 | & ((SQM3-TH)/(SQM3-UH)+(SQM3-UH)/(SQM3-TH)+4D0*FMTU*(1D0-FMTU)) | |
18330 | IF(IABS(MINT(56)).LT.10) FACFF=3D0*FACFF | |
18331 | IF(IABS(MINT(56)).LT.10.AND.MSTP(35).GE.1) | |
18332 | & FACFF=FACFF*PYHFTH(SH,SQM3,1D0) | |
18333 | WID2=1D0 | |
18334 | IF(MINT(56).EQ.6) WID2=WIDS(6,1) | |
18335 | IF(MINT(56).EQ.7.OR.MINT(56).EQ.8) WID2=WIDS(MINT(56),1) | |
18336 | IF(MINT(56).EQ.17) WID2=WIDS(17,1) | |
18337 | FACFF=FACFF*WID2 | |
18338 | IF(KFAC(1,22)*KFAC(2,22).NE.0) THEN | |
18339 | NCHN=NCHN+1 | |
18340 | ISIG(NCHN,1)=22 | |
18341 | ISIG(NCHN,2)=22 | |
18342 | ISIG(NCHN,3)=1 | |
18343 | SIGH(NCHN)=FACFF | |
18344 | ENDIF | |
18345 | ||
18346 | ELSEIF(ISUB.EQ.86) THEN | |
18347 | C...g + g -> J/Psi + g | |
18348 | FACQQG=COMFAC*AS**3*(5D0/9D0)*PARP(38)*SQRT(SQM3)* | |
18349 | & (((SH*(SH-SQM3))**2+(TH*(TH-SQM3))**2+(UH*(UH-SQM3))**2)/ | |
18350 | & ((TH-SQM3)*(UH-SQM3))**2)/(SH-SQM3)**2 | |
18351 | IF(KFAC(1,21)*KFAC(2,21).NE.0) THEN | |
18352 | NCHN=NCHN+1 | |
18353 | ISIG(NCHN,1)=21 | |
18354 | ISIG(NCHN,2)=21 | |
18355 | ISIG(NCHN,3)=1 | |
18356 | SIGH(NCHN)=FACQQG | |
18357 | ENDIF | |
18358 | ||
18359 | ELSEIF(ISUB.EQ.87) THEN | |
18360 | C...g + g -> chi_0c + g | |
18361 | PGTW=(SH*TH+TH*UH+UH*SH)/SH2 | |
18362 | QGTW=(SH*TH*UH)/SH**3 | |
18363 | RGTW=SQM3/SH | |
18364 | FACQQG=COMFAC*AS**3*4D0*(PARP(39)/SQRT(SQM3))*(1D0/SH)* | |
18365 | & (9D0*RGTW**2*PGTW**4*(RGTW**4-2D0*RGTW**2*PGTW+PGTW**2)- | |
18366 | & 6D0*RGTW*PGTW**3*QGTW*(2D0*RGTW**4-5D0*RGTW**2*PGTW+PGTW**2)- | |
18367 | & PGTW**2*QGTW**2*(RGTW**4+2D0*RGTW**2*PGTW-PGTW**2)+ | |
18368 | & 2D0*RGTW*PGTW*QGTW**3*(RGTW**2-PGTW)+6D0*RGTW**2*QGTW**4)/ | |
18369 | & (QGTW*(QGTW-RGTW*PGTW)**4) | |
18370 | IF(KFAC(1,21)*KFAC(2,21).NE.0) THEN | |
18371 | NCHN=NCHN+1 | |
18372 | ISIG(NCHN,1)=21 | |
18373 | ISIG(NCHN,2)=21 | |
18374 | ISIG(NCHN,3)=1 | |
18375 | SIGH(NCHN)=FACQQG | |
18376 | ENDIF | |
18377 | ||
18378 | ELSEIF(ISUB.EQ.88) THEN | |
18379 | C...g + g -> chi_1c + g | |
18380 | PGTW=(SH*TH+TH*UH+UH*SH)/SH2 | |
18381 | QGTW=(SH*TH*UH)/SH**3 | |
18382 | RGTW=SQM3/SH | |
18383 | FACQQG=COMFAC*AS**3*12D0*(PARP(39)/SQRT(SQM3))*(1D0/SH)* | |
18384 | & PGTW**2*(RGTW*PGTW**2*(RGTW**2-4D0*PGTW)+2D0*QGTW*(-RGTW**4+ | |
18385 | & 5D0*RGTW**2*PGTW+PGTW**2)-15D0*RGTW*QGTW**2)/ | |
18386 | & (QGTW-RGTW*PGTW)**4 | |
18387 | IF(KFAC(1,21)*KFAC(2,21).NE.0) THEN | |
18388 | NCHN=NCHN+1 | |
18389 | ISIG(NCHN,1)=21 | |
18390 | ISIG(NCHN,2)=21 | |
18391 | ISIG(NCHN,3)=1 | |
18392 | SIGH(NCHN)=FACQQG | |
18393 | ENDIF | |
18394 | ||
18395 | ELSEIF(ISUB.EQ.89) THEN | |
18396 | C...g + g -> chi_2c + g | |
18397 | PGTW=(SH*TH+TH*UH+UH*SH)/SH2 | |
18398 | QGTW=(SH*TH*UH)/SH**3 | |
18399 | RGTW=SQM3/SH | |
18400 | FACQQG=COMFAC*AS**3*4D0*(PARP(39)/SQRT(SQM3))*(1D0/SH)* | |
18401 | & (12D0*RGTW**2*PGTW**4*(RGTW**4-2D0*RGTW**2*PGTW+PGTW**2)- | |
18402 | & 3D0*RGTW*PGTW**3*QGTW*(8D0*RGTW**4-RGTW**2*PGTW+4D0*PGTW**2)+ | |
18403 | & 2D0*PGTW**2*QGTW**2*(-7D0*RGTW**4+43D0*RGTW**2*PGTW+PGTW**2)+ | |
18404 | & RGTW*PGTW*QGTW**3*(16D0*RGTW**2-61D0*PGTW)+12D0*RGTW**2* | |
18405 | & QGTW**4)/(QGTW*(QGTW-RGTW*PGTW)**4) | |
18406 | IF(KFAC(1,21)*KFAC(2,21).NE.0) THEN | |
18407 | NCHN=NCHN+1 | |
18408 | ISIG(NCHN,1)=21 | |
18409 | ISIG(NCHN,2)=21 | |
18410 | ISIG(NCHN,3)=1 | |
18411 | SIGH(NCHN)=FACQQG | |
18412 | ENDIF | |
18413 | ENDIF | |
18414 | ||
18415 | C...D: Mimimum bias processes | |
18416 | ||
18417 | ELSEIF(ISUB.LE.100) THEN | |
18418 | IF(ISUB.EQ.91) THEN | |
18419 | C...Elastic scattering | |
18420 | SIGS=SIGT(0,0,1) | |
18421 | ||
18422 | ELSEIF(ISUB.EQ.92) THEN | |
18423 | C...Single diffractive scattering (first side, i.e. XB) | |
18424 | SIGS=SIGT(0,0,2) | |
18425 | ||
18426 | ELSEIF(ISUB.EQ.93) THEN | |
18427 | C...Single diffractive scattering (second side, i.e. AX) | |
18428 | SIGS=SIGT(0,0,3) | |
18429 | ||
18430 | ELSEIF(ISUB.EQ.94) THEN | |
18431 | C...Double diffractive scattering | |
18432 | SIGS=SIGT(0,0,4) | |
18433 | ||
18434 | ELSEIF(ISUB.EQ.95) THEN | |
18435 | C...Low-pT scattering | |
18436 | SIGS=SIGT(0,0,5) | |
18437 | ||
18438 | ELSEIF(ISUB.EQ.96) THEN | |
18439 | C...Multiple interactions: sum of QCD processes | |
18440 | CALL PYWIDT(21,SH,WDTP,WDTE) | |
18441 | ||
18442 | C...q + q' -> q + q' | |
18443 | FACQQ1=COMFAC*AS**2*4D0/9D0*(SH2+UH2)/TH2 | |
18444 | FACQQB=COMFAC*AS**2*4D0/9D0*((SH2+UH2)/TH2*FACA- | |
18445 | & MSTP(34)*2D0/3D0*UH2/(SH*TH)) | |
18446 | FACQQ2=COMFAC*AS**2*4D0/9D0*((SH2+TH2)/UH2- | |
18447 | & MSTP(34)*2D0/3D0*SH2/(TH*UH)) | |
18448 | DO 1040 I=-3,3 | |
18449 | IF(I.EQ.0) GOTO 1040 | |
18450 | DO 1030 J=-3,3 | |
18451 | IF(J.EQ.0) GOTO 1030 | |
18452 | NCHN=NCHN+1 | |
18453 | ISIG(NCHN,1)=I | |
18454 | ISIG(NCHN,2)=J | |
18455 | ISIG(NCHN,3)=111 | |
18456 | SIGH(NCHN)=FACQQ1 | |
18457 | IF(I.EQ.-J) SIGH(NCHN)=FACQQB | |
18458 | IF(I.EQ.J) THEN | |
18459 | SIGH(NCHN)=0.5D0*SIGH(NCHN) | |
18460 | NCHN=NCHN+1 | |
18461 | ISIG(NCHN,1)=I | |
18462 | ISIG(NCHN,2)=J | |
18463 | ISIG(NCHN,3)=112 | |
18464 | SIGH(NCHN)=0.5D0*FACQQ2 | |
18465 | ENDIF | |
18466 | 1030 CONTINUE | |
18467 | 1040 CONTINUE | |
18468 | ||
18469 | C...q + qbar -> q' + qbar' or g + g | |
18470 | FACQQB=COMFAC*AS**2*4D0/9D0*(TH2+UH2)/SH2* | |
18471 | & (WDTE(0,1)+WDTE(0,2)+WDTE(0,3)+WDTE(0,4)) | |
18472 | FACGG1=COMFAC*AS**2*32D0/27D0*(UH/TH-(2D0+MSTP(34)*1D0/4D0)* | |
18473 | & UH2/SH2) | |
18474 | FACGG2=COMFAC*AS**2*32D0/27D0*(TH/UH-(2D0+MSTP(34)*1D0/4D0)* | |
18475 | & TH2/SH2) | |
18476 | DO 1050 I=-3,3 | |
18477 | IF(I.EQ.0) GOTO 1050 | |
18478 | NCHN=NCHN+1 | |
18479 | ISIG(NCHN,1)=I | |
18480 | ISIG(NCHN,2)=-I | |
18481 | ISIG(NCHN,3)=121 | |
18482 | SIGH(NCHN)=FACQQB | |
18483 | NCHN=NCHN+1 | |
18484 | ISIG(NCHN,1)=I | |
18485 | ISIG(NCHN,2)=-I | |
18486 | ISIG(NCHN,3)=131 | |
18487 | SIGH(NCHN)=0.5D0*FACGG1 | |
18488 | NCHN=NCHN+1 | |
18489 | ISIG(NCHN,1)=I | |
18490 | ISIG(NCHN,2)=-I | |
18491 | ISIG(NCHN,3)=132 | |
18492 | SIGH(NCHN)=0.5D0*FACGG2 | |
18493 | 1050 CONTINUE | |
18494 | ||
18495 | C...q + g -> q + g | |
18496 | FACQG1=COMFAC*AS**2*4D0/9D0*((2D0+MSTP(34)*1D0/4D0)*UH2/TH2- | |
18497 | & UH/SH)*FACA | |
18498 | FACQG2=COMFAC*AS**2*4D0/9D0*((2D0+MSTP(34)*1D0/4D0)*SH2/TH2- | |
18499 | & SH/UH) | |
18500 | DO 1070 I=-3,3 | |
18501 | IF(I.EQ.0) GOTO 1070 | |
18502 | DO 1060 ISDE=1,2 | |
18503 | NCHN=NCHN+1 | |
18504 | ISIG(NCHN,ISDE)=I | |
18505 | ISIG(NCHN,3-ISDE)=21 | |
18506 | ISIG(NCHN,3)=281 | |
18507 | SIGH(NCHN)=FACQG1 | |
18508 | NCHN=NCHN+1 | |
18509 | ISIG(NCHN,ISDE)=I | |
18510 | ISIG(NCHN,3-ISDE)=21 | |
18511 | ISIG(NCHN,3)=282 | |
18512 | SIGH(NCHN)=FACQG2 | |
18513 | 1060 CONTINUE | |
18514 | 1070 CONTINUE | |
18515 | ||
18516 | C...g + g -> q + qbar or g + g | |
18517 | FACQQ1=COMFAC*AS**2*1D0/6D0*(UH/TH-(2D0+MSTP(34)*1D0/4D0)* | |
18518 | & UH2/SH2)*(WDTE(0,1)+WDTE(0,2)+WDTE(0,3)+WDTE(0,4))*FACA | |
18519 | FACQQ2=COMFAC*AS**2*1D0/6D0*(TH/UH-(2D0+MSTP(34)*1D0/4D0)* | |
18520 | & TH2/SH2)*(WDTE(0,1)+WDTE(0,2)+WDTE(0,3)+WDTE(0,4))*FACA | |
18521 | FACGG1=COMFAC*AS**2*9D0/4D0*(SH2/TH2+2D0*SH/TH+3D0+ | |
18522 | & 2D0*TH/SH+TH2/SH2)*FACA | |
18523 | FACGG2=COMFAC*AS**2*9D0/4D0*(UH2/SH2+2D0*UH/SH+3D0+ | |
18524 | & 2D0*SH/UH+SH2/UH2)*FACA | |
18525 | FACGG3=COMFAC*AS**2*9D0/4D0*(TH2/UH2+2D0*TH/UH+3+ | |
18526 | & 2D0*UH/TH+UH2/TH2) | |
18527 | NCHN=NCHN+1 | |
18528 | ISIG(NCHN,1)=21 | |
18529 | ISIG(NCHN,2)=21 | |
18530 | ISIG(NCHN,3)=531 | |
18531 | SIGH(NCHN)=FACQQ1 | |
18532 | NCHN=NCHN+1 | |
18533 | ISIG(NCHN,1)=21 | |
18534 | ISIG(NCHN,2)=21 | |
18535 | ISIG(NCHN,3)=532 | |
18536 | SIGH(NCHN)=FACQQ2 | |
18537 | NCHN=NCHN+1 | |
18538 | ISIG(NCHN,1)=21 | |
18539 | ISIG(NCHN,2)=21 | |
18540 | ISIG(NCHN,3)=681 | |
18541 | SIGH(NCHN)=0.5D0*FACGG1 | |
18542 | NCHN=NCHN+1 | |
18543 | ISIG(NCHN,1)=21 | |
18544 | ISIG(NCHN,2)=21 | |
18545 | ISIG(NCHN,3)=682 | |
18546 | SIGH(NCHN)=0.5D0*FACGG2 | |
18547 | NCHN=NCHN+1 | |
18548 | ISIG(NCHN,1)=21 | |
18549 | ISIG(NCHN,2)=21 | |
18550 | ISIG(NCHN,3)=683 | |
18551 | SIGH(NCHN)=0.5D0*FACGG3 | |
18552 | ENDIF | |
18553 | ||
18554 | C...E: 2 -> 1, loop diagrams | |
18555 | ||
18556 | ELSEIF(ISUB.LE.110) THEN | |
18557 | IF(ISUB.EQ.101) THEN | |
18558 | C...g + g -> gamma*/Z0 | |
18559 | ||
18560 | ELSEIF(ISUB.EQ.102) THEN | |
18561 | C...g + g -> h0 (or H0, or A0) | |
18562 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
18563 | HS=SHR*WDTP(0) | |
18564 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
18565 | FACBW=4D0*COMFAC/((SH-SQMH)**2+HS**2) | |
18566 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
18567 | & FACBW=0D0 | |
18568 | HI=SHR*WDTP(13)/32D0 | |
18569 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1080 | |
18570 | NCHN=NCHN+1 | |
18571 | ISIG(NCHN,1)=21 | |
18572 | ISIG(NCHN,2)=21 | |
18573 | ISIG(NCHN,3)=1 | |
18574 | SIGH(NCHN)=HI*FACBW*HF | |
18575 | 1080 CONTINUE | |
18576 | ||
18577 | ELSEIF(ISUB.EQ.103) THEN | |
18578 | C...gamma + gamma -> h0 (or H0, or A0) | |
18579 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
18580 | HS=SHR*WDTP(0) | |
18581 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
18582 | FACBW=4D0*COMFAC/((SH-SQMH)**2+HS**2) | |
18583 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
18584 | & FACBW=0D0 | |
18585 | HI=SHR*WDTP(14)*2D0 | |
18586 | IF(KFAC(1,22)*KFAC(2,22).EQ.0) GOTO 1090 | |
18587 | NCHN=NCHN+1 | |
18588 | ISIG(NCHN,1)=22 | |
18589 | ISIG(NCHN,2)=22 | |
18590 | ISIG(NCHN,3)=1 | |
18591 | SIGH(NCHN)=HI*FACBW*HF | |
18592 | 1090 CONTINUE | |
18593 | ||
18594 | C...Continuation C: 2 -> 2, tree diagrams with masses. | |
18595 | ||
18596 | ELSEIF(ISUB.EQ.106) THEN | |
18597 | C...g + g -> J/Psi + gamma. | |
18598 | EQ=2D0/3D0 | |
18599 | FACQQG=COMFAC*AEM*EQ**2*AS**2*(4D0/3D0)*PARP(38)*SQRT(SQM3)* | |
18600 | & (((SH*(SH-SQM3))**2+(TH*(TH-SQM3))**2+(UH*(UH-SQM3))**2)/ | |
18601 | & ((TH-SQM3)*(UH-SQM3))**2)/(SH-SQM3)**2 | |
18602 | IF(KFAC(1,21)*KFAC(2,21).NE.0) THEN | |
18603 | NCHN=NCHN+1 | |
18604 | ISIG(NCHN,1)=21 | |
18605 | ISIG(NCHN,2)=21 | |
18606 | ISIG(NCHN,3)=1 | |
18607 | SIGH(NCHN)=FACQQG | |
18608 | ENDIF | |
18609 | ||
18610 | ELSEIF(ISUB.EQ.107) THEN | |
18611 | C...g + gamma -> J/Psi + g. | |
18612 | EQ=2D0/3D0 | |
18613 | FACQQG=COMFAC*AEM*EQ**2*AS**2*(32D0/3D0)*PARP(38)*SQRT(SQM3)* | |
18614 | & (((SH*(SH-SQM3))**2+(TH*(TH-SQM3))**2+(UH*(UH-SQM3))**2)/ | |
18615 | & ((TH-SQM3)*(UH-SQM3))**2)/(SH-SQM3)**2 | |
18616 | IF(KFAC(1,21)*KFAC(2,22).NE.0) THEN | |
18617 | NCHN=NCHN+1 | |
18618 | ISIG(NCHN,1)=21 | |
18619 | ISIG(NCHN,2)=22 | |
18620 | ISIG(NCHN,3)=1 | |
18621 | SIGH(NCHN)=FACQQG | |
18622 | ENDIF | |
18623 | IF(KFAC(1,22)*KFAC(2,21).NE.0) THEN | |
18624 | NCHN=NCHN+1 | |
18625 | ISIG(NCHN,1)=22 | |
18626 | ISIG(NCHN,2)=21 | |
18627 | ISIG(NCHN,3)=1 | |
18628 | SIGH(NCHN)=FACQQG | |
18629 | ENDIF | |
18630 | ||
18631 | ELSEIF(ISUB.EQ.108) THEN | |
18632 | C...gamma + gamma -> J/Psi + gamma. | |
18633 | EQ=2D0/3D0 | |
18634 | FACQQG=COMFAC*AEM**3*EQ**6*384D0*PARP(38)*SQRT(SQM3)* | |
18635 | & (((SH*(SH-SQM3))**2+(TH*(TH-SQM3))**2+(UH*(UH-SQM3))**2)/ | |
18636 | & ((TH-SQM3)*(UH-SQM3))**2)/(SH-SQM3)**2 | |
18637 | IF(KFAC(1,22)*KFAC(2,22).NE.0) THEN | |
18638 | NCHN=NCHN+1 | |
18639 | ISIG(NCHN,1)=22 | |
18640 | ISIG(NCHN,2)=22 | |
18641 | ISIG(NCHN,3)=1 | |
18642 | SIGH(NCHN)=FACQQG | |
18643 | ENDIF | |
18644 | ||
18645 | C...F: 2 -> 2, box diagrams | |
18646 | ||
18647 | ELSEIF(ISUB.EQ.110) THEN | |
18648 | C...f + fbar -> gamma + h0 | |
18649 | THUH=MAX(TH*UH,SH*CKIN(3)**2) | |
18650 | FACHG=COMFAC*(3D0*AEM**4)/(2D0*PARU(1)**2*XW*SQMW)*SH*THUH | |
18651 | FACHG=FACHG*WIDS(KFHIGG,2) | |
18652 | C...Calculate loop contributions for intermediate gamma* and Z0 | |
18653 | CIGTOT=CMPLX(0.,0.) | |
18654 | CIZTOT=CMPLX(0.,0.) | |
18655 | JMAX=3*MSTP(1)+1 | |
18656 | DO 1100 J=1,JMAX | |
18657 | IF(J.LE.2*MSTP(1)) THEN | |
18658 | FNC=1D0 | |
18659 | EJ=KCHG(J,1)/3D0 | |
18660 | AJ=SIGN(1D0,EJ+0.1D0) | |
18661 | VJ=AJ-4D0*EJ*XWV | |
18662 | BALP=SQM4/(2D0*PMAS(J,1))**2 | |
18663 | BBET=SH/(2D0*PMAS(J,1))**2 | |
18664 | ELSEIF(J.LE.3*MSTP(1)) THEN | |
18665 | FNC=3D0 | |
18666 | JL=2*(J-2*MSTP(1))-1 | |
18667 | EJ=KCHG(10+JL,1)/3D0 | |
18668 | AJ=SIGN(1D0,EJ+0.1D0) | |
18669 | VJ=AJ-4D0*EJ*XWV | |
18670 | BALP=SQM4/(2D0*PMAS(10+JL,1))**2 | |
18671 | BBET=SH/(2D0*PMAS(10+JL,1))**2 | |
18672 | ELSE | |
18673 | BALP=SQM4/(2D0*PMAS(24,1))**2 | |
18674 | BBET=SH/(2D0*PMAS(24,1))**2 | |
18675 | ENDIF | |
18676 | BABI=1D0/(BALP-BBET) | |
18677 | IF(BALP.LT.1D0) THEN | |
18678 | F0ALP=CMPLX(SNGL(ASIN(SQRT(BALP))),0.) | |
18679 | F1ALP=F0ALP**2 | |
18680 | ELSE | |
18681 | F0ALP=CMPLX(SNGL(LOG(SQRT(BALP)+SQRT(BALP-1D0))), | |
18682 | & -SNGL(0.5D0*PARU(1))) | |
18683 | F1ALP=-F0ALP**2 | |
18684 | ENDIF | |
18685 | F2ALP=SNGL(SQRT(ABS(BALP-1D0)/BALP))*F0ALP | |
18686 | IF(BBET.LT.1D0) THEN | |
18687 | F0BET=CMPLX(SNGL(ASIN(SQRT(BBET))),0.) | |
18688 | F1BET=F0BET**2 | |
18689 | ELSE | |
18690 | F0BET=CMPLX(SNGL(LOG(SQRT(BBET)+SQRT(BBET-1D0))), | |
18691 | & -SNGL(0.5D0*PARU(1))) | |
18692 | F1BET=-F0BET**2 | |
18693 | ENDIF | |
18694 | F2BET=SNGL(SQRT(ABS(BBET-1D0)/BBET))*F0BET | |
18695 | IF(J.LE.3*MSTP(1)) THEN | |
18696 | FIF=SNGL(0.5D0*BABI)+SNGL(BABI**2)*(SNGL(0.5D0*(1D0-BALP+ | |
18697 | & BBET))*(F1BET-F1ALP)+SNGL(BBET)*(F2BET-F2ALP)) | |
18698 | CIGTOT=CIGTOT+SNGL(FNC*EJ**2)*FIF | |
18699 | CIZTOT=CIZTOT+SNGL(FNC*EJ*VJ)*FIF | |
18700 | ELSE | |
18701 | TXW=XW/XW1 | |
18702 | CIGTOT=CIGTOT-0.5*(SNGL(BABI*(1.5D0+BALP))+SNGL(BABI**2)* | |
18703 | & (SNGL(1.5D0-3D0*BALP+4D0*BBET)*(F1BET-F1ALP)+ | |
18704 | & SNGL(BBET*(2D0*BALP+3D0))*(F2BET-F2ALP))) | |
18705 | CIZTOT=CIZTOT-SNGL(0.5D0*BABI*XW1)*(SNGL(5D0-TXW+2D0*BALP* | |
18706 | & (1D0-TXW))*(1.+SNGL(2D0*BABI*BBET)*(F2BET-F2ALP))+ | |
18707 | & SNGL(BABI*(4D0*BBET*(3D0-TXW)-(2D0*BALP-1D0)*(5D0-TXW)))* | |
18708 | & (F1BET-F1ALP)) | |
18709 | ENDIF | |
18710 | 1100 CONTINUE | |
18711 | CIGTOT=CIGTOT/SNGL(SH) | |
18712 | CIZTOT=CIZTOT*SNGL(XWC)/CMPLX(SNGL(SH-SQMZ),SNGL(GMMZ)) | |
18713 | C...Loop over initial flavours | |
18714 | DO 1110 I=MMINA,MMAXA | |
18715 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1110 | |
18716 | EI=KCHG(IABS(I),1)/3D0 | |
18717 | AI=SIGN(1D0,EI) | |
18718 | VI=AI-4D0*EI*XWV | |
18719 | FCOI=1D0 | |
18720 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
18721 | NCHN=NCHN+1 | |
18722 | ISIG(NCHN,1)=I | |
18723 | ISIG(NCHN,2)=-I | |
18724 | ISIG(NCHN,3)=1 | |
18725 | SIGH(NCHN)=FACHG*FCOI*(ABS(SNGL(EI)*CIGTOT+SNGL(VI)* | |
18726 | & CIZTOT)**2+AI**2*ABS(CIZTOT)**2) | |
18727 | 1110 CONTINUE | |
18728 | ||
18729 | ENDIF | |
18730 | ||
18731 | ELSEIF(ISUB.LE.120) THEN | |
18732 | IF(ISUB.EQ.111) THEN | |
18733 | C...f + fbar -> g + h0 (q + qbar -> g + h0 only) | |
18734 | A5STUR=0D0 | |
18735 | A5STUI=0D0 | |
18736 | DO 1120 I=1,2*MSTP(1) | |
18737 | SQMQ=PMAS(I,1)**2 | |
18738 | EPSS=4D0*SQMQ/SH | |
18739 | EPSH=4D0*SQMQ/SQMH | |
18740 | CALL PYWAUX(1,EPSS,W1SR,W1SI) | |
18741 | CALL PYWAUX(1,EPSH,W1HR,W1HI) | |
18742 | CALL PYWAUX(2,EPSS,W2SR,W2SI) | |
18743 | CALL PYWAUX(2,EPSH,W2HR,W2HI) | |
18744 | A5STUR=A5STUR+EPSH*(1D0+SH/(TH+UH)*(W1SR-W1HR)+ | |
18745 | & (0.25D0-SQMQ/(TH+UH))*(W2SR-W2HR)) | |
18746 | A5STUI=A5STUI+EPSH*(SH/(TH+UH)*(W1SI-W1HI)+ | |
18747 | & (0.25D0-SQMQ/(TH+UH))*(W2SI-W2HI)) | |
18748 | 1120 CONTINUE | |
18749 | FACGH=COMFAC*FACA/(144D0*PARU(1)**2)*AEM/XW*AS**3*SQMH/SQMW* | |
18750 | & SQMH/SH*(UH**2+TH**2)/(UH+TH)**2*(A5STUR**2+A5STUI**2) | |
18751 | FACGH=FACGH*WIDS(25,2) | |
18752 | DO 1130 I=MMINA,MMAXA | |
18753 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
18754 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1130 | |
18755 | NCHN=NCHN+1 | |
18756 | ISIG(NCHN,1)=I | |
18757 | ISIG(NCHN,2)=-I | |
18758 | ISIG(NCHN,3)=1 | |
18759 | SIGH(NCHN)=FACGH | |
18760 | 1130 CONTINUE | |
18761 | ||
18762 | ELSEIF(ISUB.EQ.112) THEN | |
18763 | C...f + g -> f + h0 (q + g -> q + h0 only) | |
18764 | A5TSUR=0D0 | |
18765 | A5TSUI=0D0 | |
18766 | DO 1140 I=1,2*MSTP(1) | |
18767 | SQMQ=PMAS(I,1)**2 | |
18768 | EPST=4D0*SQMQ/TH | |
18769 | EPSH=4D0*SQMQ/SQMH | |
18770 | CALL PYWAUX(1,EPST,W1TR,W1TI) | |
18771 | CALL PYWAUX(1,EPSH,W1HR,W1HI) | |
18772 | CALL PYWAUX(2,EPST,W2TR,W2TI) | |
18773 | CALL PYWAUX(2,EPSH,W2HR,W2HI) | |
18774 | A5TSUR=A5TSUR+EPSH*(1D0+TH/(SH+UH)*(W1TR-W1HR)+ | |
18775 | & (0.25D0-SQMQ/(SH+UH))*(W2TR-W2HR)) | |
18776 | A5TSUI=A5TSUI+EPSH*(TH/(SH+UH)*(W1TI-W1HI)+ | |
18777 | & (0.25D0-SQMQ/(SH+UH))*(W2TI-W2HI)) | |
18778 | 1140 CONTINUE | |
18779 | FACQH=COMFAC*FACA/(384D0*PARU(1)**2)*AEM/XW*AS**3*SQMH/SQMW* | |
18780 | & SQMH/(-TH)*(UH**2+SH**2)/(UH+SH)**2*(A5TSUR**2+A5TSUI**2) | |
18781 | FACQH=FACQH*WIDS(25,2) | |
18782 | DO 1160 I=MMINA,MMAXA | |
18783 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 1160 | |
18784 | DO 1150 ISDE=1,2 | |
18785 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1150 | |
18786 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 1150 | |
18787 | NCHN=NCHN+1 | |
18788 | ISIG(NCHN,ISDE)=I | |
18789 | ISIG(NCHN,3-ISDE)=21 | |
18790 | ISIG(NCHN,3)=1 | |
18791 | SIGH(NCHN)=FACQH | |
18792 | 1150 CONTINUE | |
18793 | 1160 CONTINUE | |
18794 | ||
18795 | ELSEIF(ISUB.EQ.113) THEN | |
18796 | C...g + g -> g + h0 | |
18797 | A2STUR=0D0 | |
18798 | A2STUI=0D0 | |
18799 | A2USTR=0D0 | |
18800 | A2USTI=0D0 | |
18801 | A2TUSR=0D0 | |
18802 | A2TUSI=0D0 | |
18803 | A4STUR=0D0 | |
18804 | A4STUI=0D0 | |
18805 | DO 1170 I=1,2*MSTP(1) | |
18806 | SQMQ=PMAS(I,1)**2 | |
18807 | EPSS=4D0*SQMQ/SH | |
18808 | EPST=4D0*SQMQ/TH | |
18809 | EPSU=4D0*SQMQ/UH | |
18810 | EPSH=4D0*SQMQ/SQMH | |
18811 | IF(EPSH.LT.1.D-6) GOTO 1170 | |
18812 | CALL PYWAUX(1,EPSS,W1SR,W1SI) | |
18813 | CALL PYWAUX(1,EPST,W1TR,W1TI) | |
18814 | CALL PYWAUX(1,EPSU,W1UR,W1UI) | |
18815 | CALL PYWAUX(1,EPSH,W1HR,W1HI) | |
18816 | CALL PYWAUX(2,EPSS,W2SR,W2SI) | |
18817 | CALL PYWAUX(2,EPST,W2TR,W2TI) | |
18818 | CALL PYWAUX(2,EPSU,W2UR,W2UI) | |
18819 | CALL PYWAUX(2,EPSH,W2HR,W2HI) | |
18820 | CALL PYI3AU(EPSS,TH/UH,Y3STUR,Y3STUI) | |
18821 | CALL PYI3AU(EPSS,UH/TH,Y3SUTR,Y3SUTI) | |
18822 | CALL PYI3AU(EPST,SH/UH,Y3TSUR,Y3TSUI) | |
18823 | CALL PYI3AU(EPST,UH/SH,Y3TUSR,Y3TUSI) | |
18824 | CALL PYI3AU(EPSU,SH/TH,Y3USTR,Y3USTI) | |
18825 | CALL PYI3AU(EPSU,TH/SH,Y3UTSR,Y3UTSI) | |
18826 | CALL PYI3AU(EPSH,SQMH/SH*TH/UH,YHSTUR,YHSTUI) | |
18827 | CALL PYI3AU(EPSH,SQMH/SH*UH/TH,YHSUTR,YHSUTI) | |
18828 | CALL PYI3AU(EPSH,SQMH/TH*SH/UH,YHTSUR,YHTSUI) | |
18829 | CALL PYI3AU(EPSH,SQMH/TH*UH/SH,YHTUSR,YHTUSI) | |
18830 | CALL PYI3AU(EPSH,SQMH/UH*SH/TH,YHUSTR,YHUSTI) | |
18831 | CALL PYI3AU(EPSH,SQMH/UH*TH/SH,YHUTSR,YHUTSI) | |
18832 | W3STUR=YHSTUR-Y3STUR-Y3UTSR | |
18833 | W3STUI=YHSTUI-Y3STUI-Y3UTSI | |
18834 | W3SUTR=YHSUTR-Y3SUTR-Y3TUSR | |
18835 | W3SUTI=YHSUTI-Y3SUTI-Y3TUSI | |
18836 | W3TSUR=YHTSUR-Y3TSUR-Y3USTR | |
18837 | W3TSUI=YHTSUI-Y3TSUI-Y3USTI | |
18838 | W3TUSR=YHTUSR-Y3TUSR-Y3SUTR | |
18839 | W3TUSI=YHTUSI-Y3TUSI-Y3SUTI | |
18840 | W3USTR=YHUSTR-Y3USTR-Y3TSUR | |
18841 | W3USTI=YHUSTI-Y3USTI-Y3TSUI | |
18842 | W3UTSR=YHUTSR-Y3UTSR-Y3STUR | |
18843 | W3UTSI=YHUTSI-Y3UTSI-Y3STUI | |
18844 | B2STUR=SQMQ/SQMH**2*(SH*(UH-SH)/(SH+UH)+2D0*TH*UH* | |
18845 | & (UH+2D0*SH)/(SH+UH)**2*(W1TR-W1HR)+(SQMQ-SH/4D0)* | |
18846 | & (0.5D0*W2SR+0.5D0*W2HR-W2TR+W3STUR)+SH2*(2D0*SQMQ/ | |
18847 | & (SH+UH)**2-0.5D0/(SH+UH))*(W2TR-W2HR)+0.5D0*TH*UH/SH* | |
18848 | & (W2HR-2D0*W2TR)+0.125D0*(SH-12D0*SQMQ-4D0*TH*UH/SH)*W3TSUR) | |
18849 | B2STUI=SQMQ/SQMH**2*(2D0*TH*UH*(UH+2D0*SH)/(SH+UH)**2* | |
18850 | & (W1TI-W1HI)+(SQMQ-SH/4D0)*(0.5D0*W2SI+0.5D0*W2HI-W2TI+ | |
18851 | & W3STUI)+SH2*(2D0*SQMQ/(SH+UH)**2-0.5D0/(SH+UH))* | |
18852 | & (W2TI-W2HI)+0.5D0*TH*UH/SH*(W2HI-2D0*W2TI)+0.125D0* | |
18853 | & (SH-12D0*SQMQ-4D0*TH*UH/SH)*W3TSUI) | |
18854 | B2SUTR=SQMQ/SQMH**2*(SH*(TH-SH)/(SH+TH)+2D0*UH*TH* | |
18855 | & (TH+2D0*SH)/(SH+TH)**2*(W1UR-W1HR)+(SQMQ-SH/4D0)* | |
18856 | & (0.5D0*W2SR+0.5D0*W2HR-W2UR+W3SUTR)+SH2*(2D0*SQMQ/ | |
18857 | & (SH+TH)**2-0.5D0/(SH+TH))*(W2UR-W2HR)+0.5D0*UH*TH/SH* | |
18858 | & (W2HR-2D0*W2UR)+0.125D0*(SH-12D0*SQMQ-4D0*UH*TH/SH)*W3USTR) | |
18859 | B2SUTI=SQMQ/SQMH**2*(2D0*UH*TH*(TH+2D0*SH)/(SH+TH)**2* | |
18860 | & (W1UI-W1HI)+(SQMQ-SH/4D0)*(0.5D0*W2SI+0.5D0*W2HI-W2UI+ | |
18861 | & W3SUTI)+SH2*(2D0*SQMQ/(SH+TH)**2-0.5D0/(SH+TH))* | |
18862 | & (W2UI-W2HI)+0.5D0*UH*TH/SH*(W2HI-2D0*W2UI)+0.125D0* | |
18863 | & (SH-12D0*SQMQ-4D0*UH*TH/SH)*W3USTI) | |
18864 | B2TSUR=SQMQ/SQMH**2*(TH*(UH-TH)/(TH+UH)+2D0*SH*UH* | |
18865 | & (UH+2D0*TH)/(TH+UH)**2*(W1SR-W1HR)+(SQMQ-TH/4D0)* | |
18866 | & (0.5D0*W2TR+0.5D0*W2HR-W2SR+W3TSUR)+TH2*(2D0*SQMQ/ | |
18867 | & (TH+UH)**2-0.5D0/(TH+UH))*(W2SR-W2HR)+0.5D0*SH*UH/TH* | |
18868 | & (W2HR-2D0*W2SR)+0.125D0*(TH-12D0*SQMQ-4D0*SH*UH/TH)*W3STUR) | |
18869 | B2TSUI=SQMQ/SQMH**2*(2D0*SH*UH*(UH+2D0*TH)/(TH+UH)**2* | |
18870 | & (W1SI-W1HI)+(SQMQ-TH/4D0)*(0.5D0*W2TI+0.5D0*W2HI-W2SI+ | |
18871 | & W3TSUI)+TH2*(2D0*SQMQ/(TH+UH)**2-0.5D0/(TH+UH))* | |
18872 | & (W2SI-W2HI)+0.5D0*SH*UH/TH*(W2HI-2D0*W2SI)+0.125D0* | |
18873 | & (TH-12D0*SQMQ-4D0*SH*UH/TH)*W3STUI) | |
18874 | B2TUSR=SQMQ/SQMH**2*(TH*(SH-TH)/(TH+SH)+2D0*UH*SH* | |
18875 | & (SH+2D0*TH)/(TH+SH)**2*(W1UR-W1HR)+(SQMQ-TH/4D0)* | |
18876 | & (0.5D0*W2TR+0.5D0*W2HR-W2UR+W3TUSR)+TH2*(2D0*SQMQ/ | |
18877 | & (TH+SH)**2-0.5D0/(TH+SH))*(W2UR-W2HR)+0.5D0*UH*SH/TH* | |
18878 | & (W2HR-2D0*W2UR)+0.125D0*(TH-12D0*SQMQ-4D0*UH*SH/TH)*W3UTSR) | |
18879 | B2TUSI=SQMQ/SQMH**2*(2D0*UH*SH*(SH+2D0*TH)/(TH+SH)**2* | |
18880 | & (W1UI-W1HI)+(SQMQ-TH/4D0)*(0.5D0*W2TI+0.5D0*W2HI-W2UI+ | |
18881 | & W3TUSI)+TH2*(2D0*SQMQ/(TH+SH)**2-0.5D0/(TH+SH))* | |
18882 | & (W2UI-W2HI)+0.5D0*UH*SH/TH*(W2HI-2D0*W2UI)+0.125D0* | |
18883 | & (TH-12D0*SQMQ-4D0*UH*SH/TH)*W3UTSI) | |
18884 | B2USTR=SQMQ/SQMH**2*(UH*(TH-UH)/(UH+TH)+2D0*SH*TH* | |
18885 | & (TH+2D0*UH)/(UH+TH)**2*(W1SR-W1HR)+(SQMQ-UH/4D0)* | |
18886 | & (0.5D0*W2UR+0.5D0*W2HR-W2SR+W3USTR)+UH2*(2D0*SQMQ/ | |
18887 | & (UH+TH)**2-0.5D0/(UH+TH))*(W2SR-W2HR)+0.5D0*SH*TH/UH* | |
18888 | & (W2HR-2D0*W2SR)+0.125D0*(UH-12D0*SQMQ-4D0*SH*TH/UH)*W3SUTR) | |
18889 | B2USTI=SQMQ/SQMH**2*(2D0*SH*TH*(TH+2D0*UH)/(UH+TH)**2* | |
18890 | & (W1SI-W1HI)+(SQMQ-UH/4D0)*(0.5D0*W2UI+0.5D0*W2HI-W2SI+ | |
18891 | & W3USTI)+UH2*(2D0*SQMQ/(UH+TH)**2-0.5D0/(UH+TH))* | |
18892 | & (W2SI-W2HI)+0.5D0*SH*TH/UH*(W2HI-2D0*W2SI)+0.125D0* | |
18893 | & (UH-12D0*SQMQ-4D0*SH*TH/UH)*W3SUTI) | |
18894 | B2UTSR=SQMQ/SQMH**2*(UH*(SH-UH)/(UH+SH)+2D0*TH*SH* | |
18895 | & (SH+2D0*UH)/(UH+SH)**2*(W1TR-W1HR)+(SQMQ-UH/4D0)* | |
18896 | & (0.5D0*W2UR+0.5D0*W2HR-W2TR+W3UTSR)+UH2*(2D0*SQMQ/ | |
18897 | & (UH+SH)**2-0.5D0/(UH+SH))*(W2TR-W2HR)+0.5D0*TH*SH/UH* | |
18898 | & (W2HR-2D0*W2TR)+0.125D0*(UH-12D0*SQMQ-4D0*TH*SH/UH)*W3TUSR) | |
18899 | B2UTSI=SQMQ/SQMH**2*(2D0*TH*SH*(SH+2D0*UH)/(UH+SH)**2* | |
18900 | & (W1TI-W1HI)+(SQMQ-UH/4D0)*(0.5D0*W2UI+0.5D0*W2HI-W2TI+ | |
18901 | & W3UTSI)+UH2*(2D0*SQMQ/(UH+SH)**2-0.5D0/(UH+SH))* | |
18902 | & (W2TI-W2HI)+0.5D0*TH*SH/UH*(W2HI-2D0*W2TI)+0.125D0* | |
18903 | & (UH-12D0*SQMQ-4D0*TH*SH/UH)*W3TUSI) | |
18904 | B4STUR=0.25D0*EPSH*(-2D0/3D0+0.25D0*(EPSH-1D0)* | |
18905 | & (W2SR-W2HR+W3STUR)) | |
18906 | B4STUI=0.25D0*EPSH*0.25D0*(EPSH-1D0)*(W2SI-W2HI+W3STUI) | |
18907 | B4TUSR=0.25D0*EPSH*(-2D0/3D0+0.25D0*(EPSH-1D0)* | |
18908 | & (W2TR-W2HR+W3TUSR)) | |
18909 | B4TUSI=0.25D0*EPSH*0.25D0*(EPSH-1D0)*(W2TI-W2HI+W3TUSI) | |
18910 | B4USTR=0.25D0*EPSH*(-2D0/3D0+0.25D0*(EPSH-1D0)* | |
18911 | & (W2UR-W2HR+W3USTR)) | |
18912 | B4USTI=0.25D0*EPSH*0.25D0*(EPSH-1D0)*(W2UI-W2HI+W3USTI) | |
18913 | A2STUR=A2STUR+B2STUR+B2SUTR | |
18914 | A2STUI=A2STUI+B2STUI+B2SUTI | |
18915 | A2USTR=A2USTR+B2USTR+B2UTSR | |
18916 | A2USTI=A2USTI+B2USTI+B2UTSI | |
18917 | A2TUSR=A2TUSR+B2TUSR+B2TSUR | |
18918 | A2TUSI=A2TUSI+B2TUSI+B2TSUI | |
18919 | A4STUR=A4STUR+B4STUR+B4USTR+B4TUSR | |
18920 | A4STUI=A4STUI+B4STUI+B4USTI+B4TUSI | |
18921 | 1170 CONTINUE | |
18922 | FACGH=COMFAC*FACA*3D0/(128D0*PARU(1)**2)*AEM/XW*AS**3* | |
18923 | & SQMH/SQMW*SQMH**3/(SH*TH*UH)*(A2STUR**2+A2STUI**2+A2USTR**2+ | |
18924 | & A2USTI**2+A2TUSR**2+A2TUSI**2+A4STUR**2+A4STUI**2) | |
18925 | FACGH=FACGH*WIDS(25,2) | |
18926 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1180 | |
18927 | NCHN=NCHN+1 | |
18928 | ISIG(NCHN,1)=21 | |
18929 | ISIG(NCHN,2)=21 | |
18930 | ISIG(NCHN,3)=1 | |
18931 | SIGH(NCHN)=FACGH | |
18932 | 1180 CONTINUE | |
18933 | ||
18934 | ELSEIF(ISUB.EQ.114.OR.ISUB.EQ.115) THEN | |
18935 | C...g + g -> gamma + gamma or g + g -> g + gamma | |
18936 | A0STUR=0D0 | |
18937 | A0STUI=0D0 | |
18938 | A0TSUR=0D0 | |
18939 | A0TSUI=0D0 | |
18940 | A0UTSR=0D0 | |
18941 | A0UTSI=0D0 | |
18942 | A1STUR=0D0 | |
18943 | A1STUI=0D0 | |
18944 | A2STUR=0D0 | |
18945 | A2STUI=0D0 | |
18946 | ALST=LOG(-SH/TH) | |
18947 | ALSU=LOG(-SH/UH) | |
18948 | ALTU=LOG(TH/UH) | |
18949 | IMAX=2*MSTP(1) | |
18950 | IF(MSTP(38).GE.1.AND.MSTP(38).LE.8) IMAX=MSTP(38) | |
18951 | DO 1190 I=1,IMAX | |
18952 | EI=KCHG(IABS(I),1)/3D0 | |
18953 | EIWT=EI**2 | |
18954 | IF(ISUB.EQ.115) EIWT=EI | |
18955 | SQMQ=PMAS(I,1)**2 | |
18956 | EPSS=4D0*SQMQ/SH | |
18957 | EPST=4D0*SQMQ/TH | |
18958 | EPSU=4D0*SQMQ/UH | |
18959 | IF((MSTP(38).GE.1.AND.MSTP(38).LE.8).OR.EPSS.LT.1.D-4) THEN | |
18960 | B0STUR=1D0+(TH-UH)/SH*ALTU+0.5D0*(TH2+UH2)/SH2*(ALTU**2+ | |
18961 | & PARU(1)**2) | |
18962 | B0STUI=0D0 | |
18963 | B0TSUR=1D0+(SH-UH)/TH*ALSU+0.5D0*(SH2+UH2)/TH2*ALSU**2 | |
18964 | B0TSUI=-PARU(1)*((SH-UH)/TH+(SH2+UH2)/TH2*ALSU) | |
18965 | B0UTSR=1D0+(SH-TH)/UH*ALST+0.5D0*(SH2+TH2)/UH2*ALST**2 | |
18966 | B0UTSI=-PARU(1)*((SH-TH)/UH+(SH2+TH2)/UH2*ALST) | |
18967 | B1STUR=-1D0 | |
18968 | B1STUI=0D0 | |
18969 | B2STUR=-1D0 | |
18970 | B2STUI=0D0 | |
18971 | ELSE | |
18972 | CALL PYWAUX(1,EPSS,W1SR,W1SI) | |
18973 | CALL PYWAUX(1,EPST,W1TR,W1TI) | |
18974 | CALL PYWAUX(1,EPSU,W1UR,W1UI) | |
18975 | CALL PYWAUX(2,EPSS,W2SR,W2SI) | |
18976 | CALL PYWAUX(2,EPST,W2TR,W2TI) | |
18977 | CALL PYWAUX(2,EPSU,W2UR,W2UI) | |
18978 | CALL PYI3AU(EPSS,TH/UH,Y3STUR,Y3STUI) | |
18979 | CALL PYI3AU(EPSS,UH/TH,Y3SUTR,Y3SUTI) | |
18980 | CALL PYI3AU(EPST,SH/UH,Y3TSUR,Y3TSUI) | |
18981 | CALL PYI3AU(EPST,UH/SH,Y3TUSR,Y3TUSI) | |
18982 | CALL PYI3AU(EPSU,SH/TH,Y3USTR,Y3USTI) | |
18983 | CALL PYI3AU(EPSU,TH/SH,Y3UTSR,Y3UTSI) | |
18984 | B0STUR=1D0+(1D0+2D0*TH/SH)*W1TR+(1D0+2D0*UH/SH)*W1UR+ | |
18985 | & 0.5D0*((TH2+UH2)/SH2-EPSS)*(W2TR+W2UR)- | |
18986 | & 0.25D0*EPST*(1D0-0.5D0*EPSS)*(Y3SUTR+Y3TUSR)- | |
18987 | & 0.25D0*EPSU*(1D0-0.5D0*EPSS)*(Y3STUR+Y3UTSR)+ | |
18988 | & 0.25D0*(-2D0*(TH2+UH2)/SH2+4D0*EPSS+EPST+EPSU+ | |
18989 | & 0.5D0*EPST*EPSU)*(Y3TSUR+Y3USTR) | |
18990 | B0STUI=(1D0+2D0*TH/SH)*W1TI+(1D0+2D0*UH/SH)*W1UI+ | |
18991 | & 0.5D0*((TH2+UH2)/SH2-EPSS)*(W2TI+W2UI)- | |
18992 | & 0.25D0*EPST*(1D0-0.5D0*EPSS)*(Y3SUTI+Y3TUSI)- | |
18993 | & 0.25D0*EPSU*(1D0-0.5D0*EPSS)*(Y3STUI+Y3UTSI)+ | |
18994 | & 0.25D0*(-2D0*(TH2+UH2)/SH2+4D0*EPSS+EPST+EPSU+ | |
18995 | & 0.5D0*EPST*EPSU)*(Y3TSUI+Y3USTI) | |
18996 | B0TSUR=1D0+(1D0+2D0*SH/TH)*W1SR+(1D0+2D0*UH/TH)*W1UR+ | |
18997 | & 0.5D0*((SH2+UH2)/TH2-EPST)*(W2SR+W2UR)- | |
18998 | & 0.25D0*EPSS*(1D0-0.5D0*EPST)*(Y3TUSR+Y3SUTR)- | |
18999 | & 0.25D0*EPSU*(1D0-0.5D0*EPST)*(Y3TSUR+Y3USTR)+ | |
19000 | & 0.25D0*(-2D0*(SH2+UH2)/TH2+4D0*EPST+EPSS+EPSU+ | |
19001 | & 0.5D0*EPSS*EPSU)*(Y3STUR+Y3UTSR) | |
19002 | B0TSUI=(1D0+2D0*SH/TH)*W1SI+(1D0+2D0*UH/TH)*W1UI+ | |
19003 | & 0.5D0*((SH2+UH2)/TH2-EPST)*(W2SI+W2UI)- | |
19004 | & 0.25D0*EPSS*(1D0-0.5D0*EPST)*(Y3TUSI+Y3SUTI)- | |
19005 | & 0.25D0*EPSU*(1D0-0.5D0*EPST)*(Y3TSUI+Y3USTI)+ | |
19006 | & 0.25D0*(-2D0*(SH2+UH2)/TH2+4D0*EPST+EPSS+EPSU+ | |
19007 | & 0.5D0*EPSS*EPSU)*(Y3STUI+Y3UTSI) | |
19008 | B0UTSR=1D0+(1D0+2D0*TH/UH)*W1TR+(1D0+2D0*SH/UH)*W1SR+ | |
19009 | & 0.5D0*((TH2+SH2)/UH2-EPSU)*(W2TR+W2SR)- | |
19010 | & 0.25D0*EPST*(1D0-0.5D0*EPSU)*(Y3USTR+Y3TSUR)- | |
19011 | & 0.25D0*EPSS*(1D0-0.5D0*EPSU)*(Y3UTSR+Y3STUR)+ | |
19012 | & 0.25D0*(-2D0*(TH2+SH2)/UH2+4D0*EPSU+EPST+EPSS+ | |
19013 | & 0.5D0*EPST*EPSS)*(Y3TUSR+Y3SUTR) | |
19014 | B0UTSI=(1D0+2D0*TH/UH)*W1TI+(1D0+2D0*SH/UH)*W1SI+ | |
19015 | & 0.5D0*((TH2+SH2)/UH2-EPSU)*(W2TI+W2SI)- | |
19016 | & 0.25D0*EPST*(1D0-0.5D0*EPSU)*(Y3USTI+Y3TSUI)- | |
19017 | & 0.25D0*EPSS*(1D0-0.5D0*EPSU)*(Y3UTSI+Y3STUI)+ | |
19018 | & 0.25D0*(-2D0*(TH2+SH2)/UH2+4D0*EPSU+EPST+EPSS+ | |
19019 | & 0.5D0*EPST*EPSS)*(Y3TUSI+Y3SUTI) | |
19020 | B1STUR=-1D0-0.25D0*(EPSS+EPST+EPSU)*(W2SR+W2TR+W2UR)+ | |
19021 | & 0.25D0*(EPSU+0.5D0*EPSS*EPST)*(Y3SUTR+Y3TUSR)+ | |
19022 | & 0.25D0*(EPST+0.5D0*EPSS*EPSU)*(Y3STUR+Y3UTSR)+ | |
19023 | & 0.25D0*(EPSS+0.5D0*EPST*EPSU)*(Y3TSUR+Y3USTR) | |
19024 | B1STUI=-0.25D0*(EPSS+EPST+EPSU)*(W2SI+W2TI+W2UI)+ | |
19025 | & 0.25D0*(EPSU+0.5D0*EPSS*EPST)*(Y3SUTI+Y3TUSI)+ | |
19026 | & 0.25D0*(EPST+0.5D0*EPSS*EPSU)*(Y3STUI+Y3UTSI)+ | |
19027 | & 0.25D0*(EPSS+0.5D0*EPST*EPSU)*(Y3TSUI+Y3USTI) | |
19028 | B2STUR=-1D0+0.125D0*EPSS*EPST*(Y3SUTR+Y3TUSR)+ | |
19029 | & 0.125D0*EPSS*EPSU*(Y3STUR+Y3UTSR)+ | |
19030 | & 0.125D0*EPST*EPSU*(Y3TSUR+Y3USTR) | |
19031 | B2STUI=0.125D0*EPSS*EPST*(Y3SUTI+Y3TUSI)+ | |
19032 | & 0.125D0*EPSS*EPSU*(Y3STUI+Y3UTSI)+ | |
19033 | & 0.125D0*EPST*EPSU*(Y3TSUI+Y3USTI) | |
19034 | ENDIF | |
19035 | A0STUR=A0STUR+EIWT*B0STUR | |
19036 | A0STUI=A0STUI+EIWT*B0STUI | |
19037 | A0TSUR=A0TSUR+EIWT*B0TSUR | |
19038 | A0TSUI=A0TSUI+EIWT*B0TSUI | |
19039 | A0UTSR=A0UTSR+EIWT*B0UTSR | |
19040 | A0UTSI=A0UTSI+EIWT*B0UTSI | |
19041 | A1STUR=A1STUR+EIWT*B1STUR | |
19042 | A1STUI=A1STUI+EIWT*B1STUI | |
19043 | A2STUR=A2STUR+EIWT*B2STUR | |
19044 | A2STUI=A2STUI+EIWT*B2STUI | |
19045 | 1190 CONTINUE | |
19046 | ASQSUM=A0STUR**2+A0STUI**2+A0TSUR**2+A0TSUI**2+A0UTSR**2+ | |
19047 | & A0UTSI**2+4D0*A1STUR**2+4D0*A1STUI**2+A2STUR**2+A2STUI**2 | |
19048 | FACGG=COMFAC*FACA/(16D0*PARU(1)**2)*AS**2*AEM**2*ASQSUM | |
19049 | FACGP=COMFAC*FACA*5D0/(192D0*PARU(1)**2)*AS**3*AEM*ASQSUM | |
19050 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1200 | |
19051 | NCHN=NCHN+1 | |
19052 | ISIG(NCHN,1)=21 | |
19053 | ISIG(NCHN,2)=21 | |
19054 | ISIG(NCHN,3)=1 | |
19055 | IF(ISUB.EQ.114) SIGH(NCHN)=0.5D0*FACGG | |
19056 | IF(ISUB.EQ.115) SIGH(NCHN)=FACGP | |
19057 | 1200 CONTINUE | |
19058 | ||
19059 | ELSEIF(ISUB.EQ.116) THEN | |
19060 | C...g + g -> gamma + Z0 | |
19061 | ||
19062 | ELSEIF(ISUB.EQ.117) THEN | |
19063 | C...g + g -> Z0 + Z0 | |
19064 | ||
19065 | ELSEIF(ISUB.EQ.118) THEN | |
19066 | C...g + g -> W+ + W- | |
19067 | ||
19068 | ENDIF | |
19069 | ||
19070 | C...G: 2 -> 3, tree diagrams | |
19071 | ||
19072 | ELSEIF(ISUB.LE.140) THEN | |
19073 | IF(ISUB.EQ.121) THEN | |
19074 | C...g + g -> Q + Qbar + h0 | |
19075 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1210 | |
19076 | IA=KFPR(ISUBSV,2) | |
19077 | PMF=PMAS(IA,1) | |
19078 | FACQQH=COMFAC*(4D0*PARU(1)*AEM/XW)*(4D0*PARU(1)*AS)**2* | |
19079 | & (0.5D0*PMF/PMAS(24,1))**2 | |
19080 | IF(IA.LE.10.AND.MSTP(37).EQ.1.AND.MSTP(2).GE.1) FACQQH= | |
19081 | & FACQQH*(LOG(MAX(4D0,PARP(37)**2*PMF**2/PARU(117)**2))/ | |
19082 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0-2D0*MSTU(118))) | |
19083 | WID2=1D0 | |
19084 | IF(IA.EQ.6.OR.IA.EQ.7.OR.IA.EQ.8) WID2=WIDS(IA,1) | |
19085 | FACQQH=FACQQH*WID2 | |
19086 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
19087 | IKFI=1 | |
19088 | IF(IA.LE.10.AND.MOD(IA,2).EQ.0) IKFI=2 | |
19089 | IF(IA.GT.10) IKFI=3 | |
19090 | FACQQH=FACQQH*PARU(150+10*IHIGG+IKFI)**2 | |
19091 | ENDIF | |
19092 | CALL PYQQBH(WTQQBH) | |
19093 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
19094 | HS=SHR*WDTP(0) | |
19095 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19096 | FACBW=(1D0/PARU(1))*VINT(2)*HF/((SH-SQMH)**2+HS**2) | |
19097 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
19098 | & FACBW=0D0 | |
19099 | NCHN=NCHN+1 | |
19100 | ISIG(NCHN,1)=21 | |
19101 | ISIG(NCHN,2)=21 | |
19102 | ISIG(NCHN,3)=1 | |
19103 | SIGH(NCHN)=FACQQH*WTQQBH*FACBW | |
19104 | 1210 CONTINUE | |
19105 | ||
19106 | ELSEIF(ISUB.EQ.122) THEN | |
19107 | C...q + qbar -> Q + Qbar + h0 | |
19108 | IA=KFPR(ISUBSV,2) | |
19109 | PMF=PMAS(IA,1) | |
19110 | FACQQH=COMFAC*(4D0*PARU(1)*AEM/XW)*(4D0*PARU(1)*AS)**2* | |
19111 | & (0.5D0*PMF/PMAS(24,1))**2 | |
19112 | IF(IA.LE.10.AND.MSTP(37).EQ.1.AND.MSTP(2).GE.1) FACQQH= | |
19113 | & FACQQH*(LOG(MAX(4D0,PARP(37)**2*PMF**2/PARU(117)**2))/ | |
19114 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0-2D0*MSTU(118))) | |
19115 | WID2=1D0 | |
19116 | IF(IA.EQ.6.OR.IA.EQ.7.OR.IA.EQ.8) WID2=WIDS(IA,1) | |
19117 | FACQQH=FACQQH*WID2 | |
19118 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) THEN | |
19119 | IKFI=1 | |
19120 | IF(IA.LE.10.AND.MOD(IA,2).EQ.0) IKFI=2 | |
19121 | IF(IA.GT.10) IKFI=3 | |
19122 | FACQQH=FACQQH*PARU(150+10*IHIGG+IKFI)**2 | |
19123 | ENDIF | |
19124 | CALL PYQQBH(WTQQBH) | |
19125 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
19126 | HS=SHR*WDTP(0) | |
19127 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19128 | FACBW=(1D0/PARU(1))*VINT(2)*HF/((SH-SQMH)**2+HS**2) | |
19129 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
19130 | & FACBW=0D0 | |
19131 | DO 1220 I=MMINA,MMAXA | |
19132 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
19133 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1220 | |
19134 | NCHN=NCHN+1 | |
19135 | ISIG(NCHN,1)=I | |
19136 | ISIG(NCHN,2)=-I | |
19137 | ISIG(NCHN,3)=1 | |
19138 | SIGH(NCHN)=FACQQH*WTQQBH*FACBW | |
19139 | 1220 CONTINUE | |
19140 | ||
19141 | ELSEIF(ISUB.EQ.123) THEN | |
19142 | C...f + f' -> f + f' + h0 (or H0, or A0) (Z0 + Z0 -> h0 as | |
19143 | C...inner process) | |
19144 | FACNOR=COMFAC*(4D0*PARU(1)*AEM/(XW*XW1))**3*SQMZ/32D0 | |
19145 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) FACNOR=FACNOR* | |
19146 | & PARU(154+10*IHIGG)**2 | |
19147 | FACPRP=1D0/((VINT(215)-VINT(204)**2)* | |
19148 | & (VINT(216)-VINT(209)**2))**2 | |
19149 | FACZZ1=FACNOR*FACPRP*(0.5D0*TAUP*VINT(2))*VINT(219) | |
19150 | FACZZ2=FACNOR*FACPRP*VINT(217)*VINT(218) | |
19151 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
19152 | HS=SHR*WDTP(0) | |
19153 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19154 | FACBW=(1D0/PARU(1))*VINT(2)*HF/((SH-SQMH)**2+HS**2) | |
19155 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
19156 | & FACBW=0D0 | |
19157 | DO 1240 I=MMIN1,MMAX1 | |
19158 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1240 | |
19159 | IA=IABS(I) | |
19160 | DO 1230 J=MMIN2,MMAX2 | |
19161 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1230 | |
19162 | JA=IABS(J) | |
19163 | EI=KCHG(IA,1)*ISIGN(1,I)/3D0 | |
19164 | AI=SIGN(1D0,KCHG(IA,1)+0.5D0)*ISIGN(1,I) | |
19165 | VI=AI-4D0*EI*XWV | |
19166 | EJ=KCHG(JA,1)*ISIGN(1,J)/3D0 | |
19167 | AJ=SIGN(1D0,KCHG(JA,1)+0.5D0)*ISIGN(1,J) | |
19168 | VJ=AJ-4D0*EJ*XWV | |
19169 | FACLR1=(VI**2+AI**2)*(VJ**2+AJ**2)+4D0*VI*AI*VJ*AJ | |
19170 | FACLR2=(VI**2+AI**2)*(VJ**2+AJ**2)-4D0*VI*AI*VJ*AJ | |
19171 | NCHN=NCHN+1 | |
19172 | ISIG(NCHN,1)=I | |
19173 | ISIG(NCHN,2)=J | |
19174 | ISIG(NCHN,3)=1 | |
19175 | SIGH(NCHN)=(FACLR1*FACZZ1+FACLR2*FACZZ2)*FACBW | |
19176 | 1230 CONTINUE | |
19177 | 1240 CONTINUE | |
19178 | ||
19179 | ELSEIF(ISUB.EQ.124) THEN | |
19180 | C...f + f' -> f" + f"' + h0 (or H0, or A0) (W+ + W- -> h0 as | |
19181 | C...inner process) | |
19182 | FACNOR=COMFAC*(4D0*PARU(1)*AEM/XW)**3*SQMW | |
19183 | IF(MSTP(4).GE.1.OR.IHIGG.GE.2) FACNOR=FACNOR* | |
19184 | & PARU(155+10*IHIGG)**2 | |
19185 | FACPRP=1D0/((VINT(215)-VINT(204)**2)* | |
19186 | & (VINT(216)-VINT(209)**2))**2 | |
19187 | FACWW=FACNOR*FACPRP*(0.5D0*TAUP*VINT(2))*VINT(219) | |
19188 | CALL PYWIDT(KFHIGG,SH,WDTP,WDTE) | |
19189 | HS=SHR*WDTP(0) | |
19190 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19191 | FACBW=(1D0/PARU(1))*VINT(2)*HF/((SH-SQMH)**2+HS**2) | |
19192 | IF(ABS(SHR-PMAS(KFHIGG,1)).GT.PARP(48)*PMAS(KFHIGG,2)) | |
19193 | & FACBW=0D0 | |
19194 | DO 1260 I=MMIN1,MMAX1 | |
19195 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1260 | |
19196 | EI=SIGN(1D0,DBLE(I))*KCHG(IABS(I),1) | |
19197 | DO 1250 J=MMIN2,MMAX2 | |
19198 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1250 | |
19199 | EJ=SIGN(1D0,DBLE(J))*KCHG(IABS(J),1) | |
19200 | IF(EI*EJ.GT.0D0) GOTO 1250 | |
19201 | FACLR=VINT(180+I)*VINT(180+J) | |
19202 | NCHN=NCHN+1 | |
19203 | ISIG(NCHN,1)=I | |
19204 | ISIG(NCHN,2)=J | |
19205 | ISIG(NCHN,3)=1 | |
19206 | SIGH(NCHN)=FACLR*FACWW*FACBW | |
19207 | 1250 CONTINUE | |
19208 | 1260 CONTINUE | |
19209 | ||
19210 | ELSEIF(ISUB.EQ.131) THEN | |
19211 | C...g + g -> Z0 + q + qbar | |
19212 | ||
19213 | ENDIF | |
19214 | ||
19215 | C...H: 2 -> 1, tree diagrams, non-standard model processes | |
19216 | ||
19217 | ELSEIF(ISUB.LE.160) THEN | |
19218 | IF(ISUB.EQ.141) THEN | |
19219 | C...f + fbar -> gamma*/Z0/Z'0 | |
19220 | SQMZP=PMAS(32,1)**2 | |
19221 | MINT(61)=2 | |
19222 | CALL PYWIDT(32,SH,WDTP,WDTE) | |
19223 | HP0=AEM/3D0*SH | |
19224 | HP1=AEM/3D0*XWC*SH | |
19225 | HP2=HP1 | |
19226 | HS=SHR*VINT(117) | |
19227 | HSP=SHR*WDTP(0) | |
19228 | FACZP=4D0*COMFAC*3D0 | |
19229 | DO 1270 I=MMINA,MMAXA | |
19230 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1270 | |
19231 | EI=KCHG(IABS(I),1)/3D0 | |
19232 | AI=SIGN(1D0,EI) | |
19233 | VI=AI-4D0*EI*XWV | |
19234 | IF(IABS(I).LT.10) THEN | |
19235 | VPI=PARU(123-2*MOD(IABS(I),2)) | |
19236 | API=PARU(124-2*MOD(IABS(I),2)) | |
19237 | ELSE | |
19238 | VPI=PARU(127-2*MOD(IABS(I),2)) | |
19239 | API=PARU(128-2*MOD(IABS(I),2)) | |
19240 | ENDIF | |
19241 | HI0=HP0 | |
19242 | IF(IABS(I).LE.10) HI0=HI0*FACA/3D0 | |
19243 | HI1=HP1 | |
19244 | IF(IABS(I).LE.10) HI1=HI1*FACA/3D0 | |
19245 | HI2=HP2 | |
19246 | IF(IABS(I).LE.10) HI2=HI2*FACA/3D0 | |
19247 | NCHN=NCHN+1 | |
19248 | ISIG(NCHN,1)=I | |
19249 | ISIG(NCHN,2)=-I | |
19250 | ISIG(NCHN,3)=1 | |
19251 | SIGH(NCHN)=FACZP*(EI**2/SH2*HI0*HP0*VINT(111)+EI*VI* | |
19252 | & (1D0-SQMZ/SH)/((SH-SQMZ)**2+HS**2)*(HI0*HP1+HI1*HP0)* | |
19253 | & VINT(112)+EI*VPI*(1D0-SQMZP/SH)/((SH-SQMZP)**2+HSP**2)* | |
19254 | & (HI0*HP2+HI2*HP0)*VINT(113)+(VI**2+AI**2)/ | |
19255 | & ((SH-SQMZ)**2+HS**2)*HI1*HP1*VINT(114)+(VI*VPI+AI*API)* | |
19256 | & ((SH-SQMZ)*(SH-SQMZP)+HS*HSP)/(((SH-SQMZ)**2+HS**2)* | |
19257 | & ((SH-SQMZP)**2+HSP**2))*(HI1*HP2+HI2*HP1)*VINT(115)+ | |
19258 | & (VPI**2+API**2)/((SH-SQMZP)**2+HSP**2)*HI2*HP2*VINT(116)) | |
19259 | 1270 CONTINUE | |
19260 | ||
19261 | ELSEIF(ISUB.EQ.142) THEN | |
19262 | C...f + fbar' -> W'+/- | |
19263 | SQMWP=PMAS(34,1)**2 | |
19264 | CALL PYWIDT(34,SH,WDTP,WDTE) | |
19265 | HS=SHR*WDTP(0) | |
19266 | FACBW=4D0*COMFAC/((SH-SQMWP)**2+HS**2)*3D0 | |
19267 | HP=AEM/(24D0*XW)*SH | |
19268 | DO 1290 I=MMIN1,MMAX1 | |
19269 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1290 | |
19270 | IA=IABS(I) | |
19271 | DO 1280 J=MMIN2,MMAX2 | |
19272 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1280 | |
19273 | JA=IABS(J) | |
19274 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 1280 | |
19275 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
19276 | & GOTO 1280 | |
19277 | KCHW=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
19278 | HI=HP*(PARU(133)**2+PARU(134)**2) | |
19279 | IF(IA.LE.10) HI=HP*(PARU(131)**2+PARU(132)**2)* | |
19280 | & VCKM((IA+1)/2,(JA+1)/2)*FACA/3D0 | |
19281 | NCHN=NCHN+1 | |
19282 | ISIG(NCHN,1)=I | |
19283 | ISIG(NCHN,2)=J | |
19284 | ISIG(NCHN,3)=1 | |
19285 | HF=SHR*(WDTE(0,1)+WDTE(0,(5-KCHW)/2)+WDTE(0,4)) | |
19286 | SIGH(NCHN)=HI*FACBW*HF | |
19287 | 1280 CONTINUE | |
19288 | 1290 CONTINUE | |
19289 | ||
19290 | ELSEIF(ISUB.EQ.143) THEN | |
19291 | C...f + fbar' -> H+/- | |
19292 | SQMHC=PMAS(37,1)**2 | |
19293 | CALL PYWIDT(37,SH,WDTP,WDTE) | |
19294 | HS=SHR*WDTP(0) | |
19295 | FACBW=4D0*COMFAC/((SH-SQMHC)**2+HS**2) | |
19296 | HP=AEM/(8D0*XW)*SH/SQMW*SH | |
19297 | DO 1310 I=MMIN1,MMAX1 | |
19298 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1310 | |
19299 | IA=IABS(I) | |
19300 | IM=(MOD(IA,10)+1)/2 | |
19301 | DO 1300 J=MMIN2,MMAX2 | |
19302 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1300 | |
19303 | JA=IABS(J) | |
19304 | JM=(MOD(JA,10)+1)/2 | |
19305 | IF(I*J.GT.0.OR.IA.EQ.JA.OR.IM.NE.JM) GOTO 1300 | |
19306 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
19307 | & GOTO 1300 | |
19308 | IF(MOD(IA,2).EQ.0) THEN | |
19309 | IU=IA | |
19310 | IL=JA | |
19311 | ELSE | |
19312 | IU=JA | |
19313 | IL=IA | |
19314 | ENDIF | |
19315 | RML=PMAS(IL,1)**2/SH | |
19316 | RMU=PMAS(IU,1)**2/SH | |
19317 | IF(IL.LE.10.AND.MSTP(37).EQ.1.AND.MSTP(2).GE.1) RML= | |
19318 | & RML*(LOG(MAX(4D0,PARP(37)**2*RML*SH/PARU(117)**2))/ | |
19319 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0- | |
19320 | & 2D0*MSTU(118))) | |
19321 | HI=HP*(RML*PARU(141)**2+RMU/PARU(141)**2) | |
19322 | IF(IA.LE.10) HI=HI*FACA/3D0 | |
19323 | KCHHC=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
19324 | HF=SHR*(WDTE(0,1)+WDTE(0,(5-KCHHC)/2)+WDTE(0,4)) | |
19325 | NCHN=NCHN+1 | |
19326 | ISIG(NCHN,1)=I | |
19327 | ISIG(NCHN,2)=J | |
19328 | ISIG(NCHN,3)=1 | |
19329 | SIGH(NCHN)=HI*FACBW*HF | |
19330 | 1300 CONTINUE | |
19331 | 1310 CONTINUE | |
19332 | ||
19333 | ELSEIF(ISUB.EQ.144) THEN | |
19334 | C...f + fbar' -> R | |
19335 | SQMR=PMAS(40,1)**2 | |
19336 | CALL PYWIDT(40,SH,WDTP,WDTE) | |
19337 | HS=SHR*WDTP(0) | |
19338 | FACBW=4D0*COMFAC/((SH-SQMR)**2+HS**2)*3D0 | |
19339 | HP=AEM/(12D0*XW)*SH | |
19340 | DO 1330 I=MMIN1,MMAX1 | |
19341 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1330 | |
19342 | IA=IABS(I) | |
19343 | DO 1320 J=MMIN2,MMAX2 | |
19344 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1320 | |
19345 | JA=IABS(J) | |
19346 | IF(I*J.GT.0.OR.IABS(IA-JA).NE.2) GOTO 1320 | |
19347 | HI=HP | |
19348 | IF(IA.LE.10) HI=HI*FACA/3D0 | |
19349 | HF=SHR*(WDTE(0,1)+WDTE(0,(10-(I+J))/4)+WDTE(0,4)) | |
19350 | NCHN=NCHN+1 | |
19351 | ISIG(NCHN,1)=I | |
19352 | ISIG(NCHN,2)=J | |
19353 | ISIG(NCHN,3)=1 | |
19354 | SIGH(NCHN)=HI*FACBW*HF | |
19355 | 1320 CONTINUE | |
19356 | 1330 CONTINUE | |
19357 | ||
19358 | ELSEIF(ISUB.EQ.145) THEN | |
19359 | C...q + l -> LQ (leptoquark) | |
19360 | SQMLQ=PMAS(39,1)**2 | |
19361 | CALL PYWIDT(39,SH,WDTP,WDTE) | |
19362 | HS=SHR*WDTP(0) | |
19363 | FACBW=4D0*COMFAC/((SH-SQMLQ)**2+HS**2) | |
19364 | IF(ABS(SHR-PMAS(39,1)).GT.PARP(48)*PMAS(39,2)) FACBW=0D0 | |
19365 | HP=AEM/4D0*SH | |
19366 | KFLQQ=KFDP(MDCY(39,2),1) | |
19367 | KFLQL=KFDP(MDCY(39,2),2) | |
19368 | DO 1350 I=MMIN1,MMAX1 | |
19369 | IF(KFAC(1,I).EQ.0) GOTO 1350 | |
19370 | IA=IABS(I) | |
19371 | IF(IA.NE.KFLQQ.AND.IA.NE.IABS(KFLQL)) GOTO 1350 | |
19372 | DO 1340 J=MMIN2,MMAX2 | |
19373 | IF(KFAC(2,J).EQ.0) GOTO 1340 | |
19374 | JA=IABS(J) | |
19375 | IF(JA.NE.KFLQQ.AND.JA.NE.IABS(KFLQL)) GOTO 1340 | |
19376 | IF(I*J.NE.KFLQQ*KFLQL) GOTO 1340 | |
19377 | IF(JA.EQ.IA) GOTO 1340 | |
19378 | IF(IA.EQ.KFLQQ) KCHLQ=ISIGN(1,I) | |
19379 | IF(JA.EQ.KFLQQ) KCHLQ=ISIGN(1,J) | |
19380 | HI=HP*PARU(151) | |
19381 | HF=SHR*(WDTE(0,1)+WDTE(0,(5-KCHLQ)/2)+WDTE(0,4)) | |
19382 | NCHN=NCHN+1 | |
19383 | ISIG(NCHN,1)=I | |
19384 | ISIG(NCHN,2)=J | |
19385 | ISIG(NCHN,3)=1 | |
19386 | SIGH(NCHN)=HI*FACBW*HF | |
19387 | 1340 CONTINUE | |
19388 | 1350 CONTINUE | |
19389 | ||
19390 | ELSEIF(ISUB.EQ.147.OR.ISUB.EQ.148) THEN | |
19391 | C...d + g -> d* and u + g -> u* (excited quarks) | |
19392 | KFQSTR=KFPR(ISUB,1) | |
19393 | KCQSTR=PYCOMP(KFQSTR) | |
19394 | KFQEXC=MOD(KFQSTR,KEXCIT) | |
19395 | CALL PYWIDT(KFQSTR,SH,WDTP,WDTE) | |
19396 | HS=SHR*WDTP(0) | |
19397 | FACBW=COMFAC/((SH-PMAS(KCQSTR,1)**2)**2+HS**2) | |
19398 | FACBW=FACBW*AS*PARU(159)**2*SH/(3D0*PARU(155)**2) | |
19399 | IF(ABS(SHR-PMAS(KCQSTR,1)).GT.PARP(48)*PMAS(KCQSTR,2)) | |
19400 | & FACBW=0D0 | |
19401 | HP=SH | |
19402 | DO 1370 I=-KFQEXC,KFQEXC,2*KFQEXC | |
19403 | DO 1360 ISDE=1,2 | |
19404 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1360 | |
19405 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 1360 | |
19406 | HI=HP | |
19407 | IF(I.GT.0) HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19408 | IF(I.LT.0) HF=SHR*(WDTE(0,1)+WDTE(0,3)+WDTE(0,4)) | |
19409 | NCHN=NCHN+1 | |
19410 | ISIG(NCHN,ISDE)=I | |
19411 | ISIG(NCHN,3-ISDE)=21 | |
19412 | ISIG(NCHN,3)=1 | |
19413 | SIGH(NCHN)=HI*FACBW*HF | |
19414 | 1360 CONTINUE | |
19415 | 1370 CONTINUE | |
19416 | ||
19417 | ELSEIF(ISUB.EQ.149) THEN | |
19418 | C...g + g -> eta_techni | |
19419 | CALL PYWIDT(38,SH,WDTP,WDTE) | |
19420 | HS=SHR*WDTP(0) | |
19421 | FACBW=COMFAC*0.5D0/((SH-PMAS(38,1)**2)**2+HS**2) | |
19422 | IF(ABS(SHR-PMAS(38,1)).GT.PARP(48)*PMAS(38,2)) FACBW=0D0 | |
19423 | HP=SH | |
19424 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1380 | |
19425 | HI=HP*WDTP(3) | |
19426 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19427 | NCHN=NCHN+1 | |
19428 | ISIG(NCHN,1)=21 | |
19429 | ISIG(NCHN,2)=21 | |
19430 | ISIG(NCHN,3)=1 | |
19431 | SIGH(NCHN)=HI*FACBW*HF | |
19432 | 1380 CONTINUE | |
19433 | ||
19434 | ENDIF | |
19435 | ||
19436 | C...I: 2 -> 2, tree diagrams, non-standard model processes | |
19437 | ||
19438 | ELSEIF(ISUB.LE.200) THEN | |
19439 | IF(ISUB.EQ.161) THEN | |
19440 | C...f + g -> f' + H+/- (b + g -> t + H+/- only) | |
19441 | C...(choice of only b and t to avoid kinematics problems) | |
19442 | SQMHC=PMAS(37,1)**2 | |
19443 | FHCQ=COMFAC*FACA*AS*AEM/XW*1D0/24 | |
19444 | DO 1400 I=MMINA,MMAXA | |
19445 | IA=IABS(I) | |
19446 | IF(IA.NE.5) GOTO 1400 | |
19447 | SQML=PMAS(IA,1)**2 | |
19448 | IF(IA.LE.10.AND.MSTP(37).EQ.1.AND.MSTP(2).GE.1) SQML=SQML* | |
19449 | & (LOG(MAX(4D0,PARP(37)**2*SQML/PARU(117)**2))/ | |
19450 | & LOG(MAX(4D0,SH/PARU(117)**2)))**(24D0/(33D0-2D0*MSTU(118))) | |
19451 | IUA=IA+MOD(IA,2) | |
19452 | SQMQ=PMAS(IUA,1)**2 | |
19453 | FACHCQ=FHCQ*(SQML*PARU(141)**2+SQMQ/PARU(141)**2)/SQMW* | |
19454 | & (SH/(SQMQ-UH)+2D0*SQMQ*(SQMHC-UH)/(SQMQ-UH)**2+(SQMQ-UH)/SH+ | |
19455 | & 2D0*SQMQ/(SQMQ-UH)+2D0*(SQMHC-UH)/(SQMQ-UH)* | |
19456 | & (SQMHC-SQMQ-SH)/SH) | |
19457 | KCHHC=ISIGN(1,KCHG(IA,1)*ISIGN(1,I)) | |
19458 | DO 1390 ISDE=1,2 | |
19459 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1390 | |
19460 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,1).EQ.0) GOTO 1390 | |
19461 | NCHN=NCHN+1 | |
19462 | ISIG(NCHN,ISDE)=I | |
19463 | ISIG(NCHN,3-ISDE)=21 | |
19464 | ISIG(NCHN,3)=1 | |
19465 | SIGH(NCHN)=FACHCQ*WIDS(37,(5-KCHHC)/2) | |
19466 | 1390 CONTINUE | |
19467 | 1400 CONTINUE | |
19468 | ||
19469 | ELSEIF(ISUB.EQ.162) THEN | |
19470 | C...q + g -> LQ + lbar; LQ=leptoquark | |
19471 | SQMLQ=PMAS(39,1)**2 | |
19472 | FACLQ=COMFAC*FACA*PARU(151)*(AS*AEM/6D0)*(-TH/SH)* | |
19473 | & (UH2+SQMLQ**2)/(UH-SQMLQ)**2 | |
19474 | KFLQQ=KFDP(MDCY(39,2),1) | |
19475 | DO 1420 I=MMINA,MMAXA | |
19476 | IF(IABS(I).NE.KFLQQ) GOTO 1420 | |
19477 | KCHLQ=ISIGN(1,I) | |
19478 | DO 1410 ISDE=1,2 | |
19479 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1410 | |
19480 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 1410 | |
19481 | NCHN=NCHN+1 | |
19482 | ISIG(NCHN,ISDE)=I | |
19483 | ISIG(NCHN,3-ISDE)=21 | |
19484 | ISIG(NCHN,3)=1 | |
19485 | SIGH(NCHN)=FACLQ*WIDS(39,(5-KCHLQ)/2) | |
19486 | 1410 CONTINUE | |
19487 | 1420 CONTINUE | |
19488 | ||
19489 | ELSEIF(ISUB.EQ.163) THEN | |
19490 | C...g + g -> LQ + LQbar; LQ=leptoquark | |
19491 | SQMLQ=PMAS(39,1)**2 | |
19492 | FACLQ=COMFAC*FACA*WIDS(39,1)*(AS**2/2D0)* | |
19493 | & (7D0/48D0+3D0*(UH-TH)**2/(16D0*SH2))*(1D0+2D0*SQMLQ*TH/ | |
19494 | & (TH-SQMLQ)**2+2D0*SQMLQ*UH/(UH-SQMLQ)**2+4D0*SQMLQ**2/ | |
19495 | & ((TH-SQMLQ)*(UH-SQMLQ))) | |
19496 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1430 | |
19497 | NCHN=NCHN+1 | |
19498 | ISIG(NCHN,1)=21 | |
19499 | ISIG(NCHN,2)=21 | |
19500 | C...Since don't know proper colour flow, randomize between alternatives | |
19501 | ISIG(NCHN,3)=INT(1.5D0+PYR(0)) | |
19502 | SIGH(NCHN)=FACLQ | |
19503 | 1430 CONTINUE | |
19504 | ||
19505 | ELSEIF(ISUB.EQ.164) THEN | |
19506 | C...q + qbar -> LQ + LQbar; LQ=leptoquark | |
19507 | SQMLQ=PMAS(39,1)**2 | |
19508 | FACLQA=COMFAC*WIDS(39,1)*(AS**2/9D0)* | |
19509 | & (SH*(SH-4D0*SQMLQ)-(UH-TH)**2)/SH2 | |
19510 | FACLQS=COMFAC*WIDS(39,1)*((PARU(151)**2*AEM**2/8D0)* | |
19511 | & (-SH*TH-(SQMLQ-TH)**2)/TH2+(PARU(151)*AEM*AS/18D0)* | |
19512 | & ((SQMLQ-TH)*(UH-TH)+SH*(SQMLQ+TH))/(SH*TH)) | |
19513 | KFLQQ=KFDP(MDCY(39,2),1) | |
19514 | DO 1440 I=MMINA,MMAXA | |
19515 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
19516 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1440 | |
19517 | NCHN=NCHN+1 | |
19518 | ISIG(NCHN,1)=I | |
19519 | ISIG(NCHN,2)=-I | |
19520 | ISIG(NCHN,3)=1 | |
19521 | SIGH(NCHN)=FACLQA | |
19522 | IF(IABS(I).EQ.KFLQQ) SIGH(NCHN)=FACLQA+FACLQS | |
19523 | 1440 CONTINUE | |
19524 | ||
19525 | ELSEIF(ISUB.EQ.165) THEN | |
19526 | C...q + qbar -> l+ + l- (including contact term for compositeness) | |
19527 | ZRATR=XWC*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
19528 | ZRATI=XWC*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
19529 | KFF=IABS(KFPR(ISUB,1)) | |
19530 | EF=KCHG(KFF,1)/3D0 | |
19531 | AF=SIGN(1D0,EF+0.1D0) | |
19532 | VF=AF-4D0*EF*XWV | |
19533 | VALF=VF+AF | |
19534 | VARF=VF-AF | |
19535 | FCOF=1D0 | |
19536 | IF(KFF.LE.10) FCOF=3D0 | |
19537 | WID2=1D0 | |
19538 | IF(KFF.EQ.6) WID2=WIDS(6,1) | |
19539 | IF(KFF.EQ.7.OR.KFF.EQ.8) WID2=WIDS(KFF,1) | |
19540 | IF(KFF.EQ.17.OR.KFF.EQ.18) WID2=WIDS(KFF,1) | |
19541 | DO 1450 I=MMINA,MMAXA | |
19542 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1450 | |
19543 | EI=KCHG(IABS(I),1)/3D0 | |
19544 | AI=SIGN(1D0,EI+0.1D0) | |
19545 | VI=AI-4D0*EI*XWV | |
19546 | VALI=VI+AI | |
19547 | VARI=VI-AI | |
19548 | FCOI=1D0 | |
19549 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
19550 | IF((MSTP(5).EQ.1.AND.IABS(I).LE.2).OR.MSTP(5).EQ.2) THEN | |
19551 | FGZA=(EI*EF+VALI*VALF*ZRATR+PARU(156)*SH/ | |
19552 | & (AEM*PARU(155)**2))**2+(VALI*VALF*ZRATI)**2+ | |
19553 | & (EI*EF+VARI*VARF*ZRATR)**2+(VARI*VARF*ZRATI)**2 | |
19554 | ELSE | |
19555 | FGZA=(EI*EF+VALI*VALF*ZRATR)**2+(VALI*VALF*ZRATI)**2+ | |
19556 | & (EI*EF+VARI*VARF*ZRATR)**2+(VARI*VARF*ZRATI)**2 | |
19557 | ENDIF | |
19558 | FGZB=(EI*EF+VALI*VARF*ZRATR)**2+(VALI*VARF*ZRATI)**2+ | |
19559 | & (EI*EF+VARI*VALF*ZRATR)**2+(VARI*VALF*ZRATI)**2 | |
19560 | FGZAB=AEM**2*(FGZA*UH2/SH2+FGZB*TH2/SH2) | |
19561 | IF((MSTP(5).EQ.3.AND.IABS(I).EQ.2).OR.(MSTP(5).EQ.4.AND. | |
19562 | & MOD(IABS(I),2).EQ.0)) FGZAB=FGZAB+SH2/(2D0*PARU(155)**4) | |
19563 | NCHN=NCHN+1 | |
19564 | ISIG(NCHN,1)=I | |
19565 | ISIG(NCHN,2)=-I | |
19566 | ISIG(NCHN,3)=1 | |
19567 | SIGH(NCHN)=COMFAC*FCOI*FCOF*FGZAB*WID2 | |
19568 | 1450 CONTINUE | |
19569 | ||
19570 | ELSEIF(ISUB.EQ.166) THEN | |
19571 | C...q + q'bar -> l + nu_l (including contact term for compositeness) | |
19572 | WFAC=(1D0/4D0)*(AEM/XW)**2*UH2/((SH-SQMW)**2+GMMW**2) | |
19573 | WCIFAC=WFAC+SH2/(4D0*PARU(155)**4) | |
19574 | KFF=IABS(KFPR(ISUB,1)) | |
19575 | FCOF=1D0 | |
19576 | IF(KFF.LE.10) FCOF=3D0 | |
19577 | DO 1470 I=MMIN1,MMAX1 | |
19578 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1470 | |
19579 | IA=IABS(I) | |
19580 | DO 1460 J=MMIN2,MMAX2 | |
19581 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1460 | |
19582 | JA=IABS(J) | |
19583 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 1460 | |
19584 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
19585 | & GOTO 1460 | |
19586 | FCOI=1D0 | |
19587 | IF(IA.LE.10) FCOI=VCKM((IA+1)/2,(JA+1)/2)*FACA/3D0 | |
19588 | WID2=1D0 | |
19589 | IF((I.GT.0.AND.MOD(I,2).EQ.0).OR.(J.GT.0.AND. | |
19590 | & MOD(J,2).EQ.0)) THEN | |
19591 | IF(KFF.EQ.5) WID2=WIDS(6,2) | |
19592 | IF(KFF.EQ.7) WID2=WIDS(8,2)*WIDS(7,3) | |
19593 | IF(KFF.EQ.17) WID2=WIDS(18,2)*WIDS(17,3) | |
19594 | ELSE | |
19595 | IF(KFF.EQ.5) WID2=WIDS(6,3) | |
19596 | IF(KFF.EQ.7) WID2=WIDS(8,3)*WIDS(7,2) | |
19597 | IF(KFF.EQ.17) WID2=WIDS(18,3)*WIDS(17,2) | |
19598 | ENDIF | |
19599 | NCHN=NCHN+1 | |
19600 | ISIG(NCHN,1)=I | |
19601 | ISIG(NCHN,2)=J | |
19602 | ISIG(NCHN,3)=1 | |
19603 | SIGH(NCHN)=COMFAC*FCOI*FCOF*WFAC*WID2 | |
19604 | IF((MSTP(5).EQ.3.AND.IA.LE.2.AND.JA.LE.2).OR.MSTP(5).EQ.4) | |
19605 | & SIGH(NCHN)=COMFAC*FCOI*FCOF*WCIFAC*WID2 | |
19606 | 1460 CONTINUE | |
19607 | 1470 CONTINUE | |
19608 | ||
19609 | ELSEIF(ISUB.EQ.167.OR.ISUB.EQ.168) THEN | |
19610 | C...d + g -> d* and u + g -> u* (excited quarks) | |
19611 | KFQSTR=KFPR(ISUB,2) | |
19612 | KCQSTR=PYCOMP(KFQSTR) | |
19613 | KFQEXC=MOD(KFQSTR,KEXCIT) | |
19614 | FACQSA=COMFAC*(SH/PARU(155)**2)**2*(1D0-SQM4/SH) | |
19615 | FACQSB=COMFAC*0.25D0*(SH/PARU(155)**2)**2*(1D0-SQM4/SH)* | |
19616 | & (1D0+SQM4/SH)*(1D0+CTH)*(1D0+((SH-SQM4)/(SH+SQM4))*CTH) | |
19617 | C...Propagators: as simulated in PYOFSH and as desired | |
19618 | GMMQ=PMAS(KCQSTR,1)*PMAS(KCQSTR,2) | |
19619 | HBW4=GMMQ/((SQM4-PMAS(KCQSTR,1)**2)**2+GMMQ**2) | |
19620 | CALL PYWIDT(KFQSTR,SQM4,WDTP,WDTE) | |
19621 | GMMQC=SQRT(SQM4)*WDTP(0) | |
19622 | HBW4C=GMMQC/((SQM4-PMAS(KCQSTR,1)**2)**2+GMMQC**2) | |
19623 | FACQSA=FACQSA*HBW4C/HBW4 | |
19624 | FACQSB=FACQSB*HBW4C/HBW4 | |
19625 | DO 1490 I=MMIN1,MMAX1 | |
19626 | IA=IABS(I) | |
19627 | IF(I.EQ.0.OR.IA.GT.6.OR.KFAC(1,I).EQ.0) GOTO 1490 | |
19628 | DO 1480 J=MMIN2,MMAX2 | |
19629 | JA=IABS(J) | |
19630 | IF(J.EQ.0.OR.JA.GT.6.OR.KFAC(2,J).EQ.0) GOTO 1480 | |
19631 | IF(IA.EQ.KFQEXC.AND.I.EQ.J) THEN | |
19632 | NCHN=NCHN+1 | |
19633 | ISIG(NCHN,1)=I | |
19634 | ISIG(NCHN,2)=J | |
19635 | ISIG(NCHN,3)=1 | |
19636 | SIGH(NCHN)=(4D0/3D0)*FACQSA | |
19637 | NCHN=NCHN+1 | |
19638 | ISIG(NCHN,1)=I | |
19639 | ISIG(NCHN,2)=J | |
19640 | ISIG(NCHN,3)=2 | |
19641 | SIGH(NCHN)=(4D0/3D0)*FACQSA | |
19642 | ELSEIF((IA.EQ.KFQEXC.OR.JA.EQ.KFQEXC).AND.I*J.GT.0) THEN | |
19643 | NCHN=NCHN+1 | |
19644 | ISIG(NCHN,1)=I | |
19645 | ISIG(NCHN,2)=J | |
19646 | ISIG(NCHN,3)=1 | |
19647 | IF(JA.EQ.KFQEXC) ISIG(NCHN,3)=2 | |
19648 | SIGH(NCHN)=FACQSA | |
19649 | ELSEIF(IA.EQ.KFQEXC.AND.I.EQ.-J) THEN | |
19650 | NCHN=NCHN+1 | |
19651 | ISIG(NCHN,1)=I | |
19652 | ISIG(NCHN,2)=J | |
19653 | ISIG(NCHN,3)=1 | |
19654 | SIGH(NCHN)=(8D0/3D0)*FACQSB | |
19655 | NCHN=NCHN+1 | |
19656 | ISIG(NCHN,1)=I | |
19657 | ISIG(NCHN,2)=J | |
19658 | ISIG(NCHN,3)=2 | |
19659 | SIGH(NCHN)=(8D0/3D0)*FACQSB | |
19660 | ELSEIF(I.EQ.-J) THEN | |
19661 | NCHN=NCHN+1 | |
19662 | ISIG(NCHN,1)=I | |
19663 | ISIG(NCHN,2)=J | |
19664 | ISIG(NCHN,3)=1 | |
19665 | SIGH(NCHN)=FACQSB | |
19666 | NCHN=NCHN+1 | |
19667 | ISIG(NCHN,1)=I | |
19668 | ISIG(NCHN,2)=J | |
19669 | ISIG(NCHN,3)=2 | |
19670 | SIGH(NCHN)=FACQSB | |
19671 | ELSEIF(IA.EQ.KFQEXC.OR.JA.EQ.KFQEXC) THEN | |
19672 | NCHN=NCHN+1 | |
19673 | ISIG(NCHN,1)=I | |
19674 | ISIG(NCHN,2)=J | |
19675 | ISIG(NCHN,3)=1 | |
19676 | IF(JA.EQ.KFQEXC) ISIG(NCHN,3)=2 | |
19677 | SIGH(NCHN)=FACQSB | |
19678 | ENDIF | |
19679 | 1480 CONTINUE | |
19680 | 1490 CONTINUE | |
19681 | ||
19682 | ELSEIF(ISUB.EQ.191) THEN | |
19683 | C...q + qbar -> rho_tech0. | |
19684 | SQMRHT=PMAS(54,1)**2 | |
19685 | CALL PYWIDT(54,SH,WDTP,WDTE) | |
19686 | HS=SHR*WDTP(0) | |
19687 | FACBW=12D0*COMFAC/((SH-SQMRHT)**2+HS**2) | |
19688 | IF(ABS(SHR-PMAS(54,1)).GT.PARP(48)*PMAS(54,2)) FACBW=0D0 | |
19689 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19690 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
19691 | HP=(1D0/6D0)*(AEM**2/ALPRHT)*(SQMRHT**2/SH) | |
19692 | XWRHT=(1D0-2D0*XW)/(4D0*XW*(1D0-XW)) | |
19693 | BWZR=XWRHT*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
19694 | BWZI=XWRHT*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
19695 | DO 1500 I=MMINA,MMAXA | |
19696 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1500 | |
19697 | IA=IABS(I) | |
19698 | EI=KCHG(IABS(I),1)/3D0 | |
19699 | AI=SIGN(1D0,EI+0.1D0) | |
19700 | VI=AI-4D0*EI*XWV | |
19701 | VALI=0.5D0*(VI+AI) | |
19702 | VARI=0.5D0*(VI-AI) | |
19703 | HI=HP*((EI+VALI*BWZR)**2+(VALI*BWZI)**2+ | |
19704 | & (EI+VARI*BWZR)**2+(VARI*BWZI)**2) | |
19705 | IF(IA.LE.10) HI=HI*FACA/3D0 | |
19706 | NCHN=NCHN+1 | |
19707 | ISIG(NCHN,1)=I | |
19708 | ISIG(NCHN,2)=-I | |
19709 | ISIG(NCHN,3)=1 | |
19710 | SIGH(NCHN)=HI*FACBW*HF | |
19711 | 1500 CONTINUE | |
19712 | ||
19713 | ELSEIF(ISUB.EQ.192) THEN | |
19714 | C...q + qbar' -> rho_tech+/-. | |
19715 | SQMRHT=PMAS(55,1)**2 | |
19716 | CALL PYWIDT(55,SH,WDTP,WDTE) | |
19717 | HS=SHR*WDTP(0) | |
19718 | FACBW=12D0*COMFAC/((SH-SQMRHT)**2+HS**2) | |
19719 | IF(ABS(SHR-PMAS(55,1)).GT.PARP(48)*PMAS(55,2)) FACBW=0D0 | |
19720 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
19721 | HP=(1D0/6D0)*(AEM**2/ALPRHT)*(SQMRHT**2/SH)* | |
19722 | & (0.25D0/XW**2)*SH**2/((SH-SQMW)**2+GMMW**2) | |
19723 | DO 1520 I=MMIN1,MMAX1 | |
19724 | IF(I.EQ.0.OR.KFAC(1,I).EQ.0) GOTO 1520 | |
19725 | IA=IABS(I) | |
19726 | DO 1510 J=MMIN2,MMAX2 | |
19727 | IF(J.EQ.0.OR.KFAC(2,J).EQ.0) GOTO 1510 | |
19728 | JA=IABS(J) | |
19729 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 1510 | |
19730 | IF((IA.LE.10.AND.JA.GT.10).OR.(IA.GT.10.AND.JA.LE.10)) | |
19731 | & GOTO 1510 | |
19732 | KCHR=(KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J))/3 | |
19733 | HF=SHR*(WDTE(0,1)+WDTE(0,(5-KCHR)/2)+WDTE(0,4)) | |
19734 | HI=HP | |
19735 | IF(IA.LE.10) HI=HI*VCKM((IA+1)/2,(JA+1)/2)*FACA/3D0 | |
19736 | NCHN=NCHN+1 | |
19737 | ISIG(NCHN,1)=I | |
19738 | ISIG(NCHN,2)=J | |
19739 | ISIG(NCHN,3)=1 | |
19740 | SIGH(NCHN)=HI*FACBW*HF | |
19741 | 1510 CONTINUE | |
19742 | 1520 CONTINUE | |
19743 | ||
19744 | ELSEIF(ISUB.EQ.193) THEN | |
19745 | C...q + qbar -> omega_tech0. | |
19746 | SQMOMT=PMAS(56,1)**2 | |
19747 | CALL PYWIDT(56,SH,WDTP,WDTE) | |
19748 | HS=SHR*WDTP(0) | |
19749 | FACBW=12D0*COMFAC/((SH-SQMOMT)**2+HS**2) | |
19750 | IF(ABS(SHR-PMAS(56,1)).GT.PARP(48)*PMAS(56,2)) FACBW=0D0 | |
19751 | HF=SHR*(WDTE(0,1)+WDTE(0,2)+WDTE(0,4)) | |
19752 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
19753 | HP=(1D0/6D0)*(AEM**2/ALPRHT)*(SQMOMT**2/SH)* | |
19754 | & (2D0*PARP(143)-1D0)**2 | |
19755 | BWZR=(0.5D0/(1D0-XW))*SH*(SH-SQMZ)/((SH-SQMZ)**2+GMMZ**2) | |
19756 | BWZI=(0.5D0/(1D0-XW))*SH*GMMZ/((SH-SQMZ)**2+GMMZ**2) | |
19757 | DO 1530 I=MMINA,MMAXA | |
19758 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1530 | |
19759 | IA=IABS(I) | |
19760 | EI=KCHG(IABS(I),1)/3D0 | |
19761 | AI=SIGN(1D0,EI+0.1D0) | |
19762 | VI=AI-4D0*EI*XWV | |
19763 | VALI=0.5D0*(VI+AI) | |
19764 | VARI=0.5D0*(VI-AI) | |
19765 | HI=HP*((EI-VALI*BWZR)**2+(VALI*BWZI)**2+ | |
19766 | & (EI-VARI*BWZR)**2+(VARI*BWZI)**2) | |
19767 | IF(IA.LE.10) HI=HI*FACA/3D0 | |
19768 | NCHN=NCHN+1 | |
19769 | ISIG(NCHN,1)=I | |
19770 | ISIG(NCHN,2)=-I | |
19771 | ISIG(NCHN,3)=1 | |
19772 | SIGH(NCHN)=HI*FACBW*HF | |
19773 | 1530 CONTINUE | |
19774 | ||
19775 | ELSEIF(ISUB.EQ.194) THEN | |
19776 | C...f + fbar -> f' + fbar' via s-channel rho_tech and omega_tech. | |
19777 | SQMRHT=PMAS(54,1)**2 | |
19778 | CALL PYWIDT(54,SH,WDTP,WDTE) | |
19779 | HSRHT=SHR*WDTP(0) | |
19780 | BWRHTR=SQMRHT**2*(SH-SQMRHT)/((SH-SQMRHT)**2+HSRHT**2) | |
19781 | BWRHTI=SQMRHT**2*HSRHT/((SH-SQMRHT)**2+HSRHT**2) | |
19782 | XWRHT=(1D0-2D0*XW)/(4D0*XW*(1D0-XW)) | |
19783 | SQMOMT=PMAS(56,1)**2 | |
19784 | CALL PYWIDT(56,SH,WDTP,WDTE) | |
19785 | HSOMT=SHR*WDTP(0) | |
19786 | BWOMTR=SQMOMT**2*(SH-SQMOMT)/((SH-SQMOMT)**2+HSOMT**2) | |
19787 | BWOMTI=SQMOMT**2*HSOMT/((SH-SQMOMT)**2+HSOMT**2) | |
19788 | XWOMT=0.5D0/(1D0-XW) | |
19789 | KFF=IABS(KFPR(ISUB,1)) | |
19790 | EF=KCHG(KFF,1)/3D0 | |
19791 | AF=SIGN(1D0,EF+0.1D0) | |
19792 | VF=AF-4D0*EF*XWV | |
19793 | VALF=0.5D0*(VF+AF) | |
19794 | VARF=0.5D0*(VF-AF) | |
19795 | FCOF=1D0 | |
19796 | IF(KFF.LE.10) FCOF=3D0 | |
19797 | WID2=1D0 | |
19798 | IF(KFF.GE.6.AND.KFF.LE.8) WID2=WIDS(KFF,1) | |
19799 | IF(KFF.EQ.17.OR.KFF.EQ.18) WID2=WIDS(KFF,1) | |
19800 | ALPRHT=2.91D0*(3D0/PARP(144)) | |
19801 | FACTC=COMFAC*(AEM**2/(ALPRHT*SH2))**2*FCOF*WID2 | |
19802 | BWZ=SH/(SH-SQMZ) | |
19803 | ALEFTF=EF+VALF*XWRHT*BWZ | |
19804 | ARIGHF=EF+VARF*XWRHT*BWZ | |
19805 | BLEFTF=(EF-VALF*XWOMT*BWZ)*(2D0*PARP(143)-1D0) | |
19806 | BRIGHF=(EF-VARF*XWOMT*BWZ)*(2D0*PARP(143)-1D0) | |
19807 | DO 1540 I=MMINA,MMAXA | |
19808 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1540 | |
19809 | EI=KCHG(IABS(I),1)/3D0 | |
19810 | AI=SIGN(1D0,EI+0.1D0) | |
19811 | VI=AI-4D0*EI*XWV | |
19812 | VALI=0.5D0*(VI+AI) | |
19813 | VARI=0.5D0*(VI-AI) | |
19814 | FCOI=1D0 | |
19815 | IF(IABS(I).LE.10) FCOI=FACA/3D0 | |
19816 | ALEFTI=EI+VALI*XWRHT*BWZ | |
19817 | ARIGHI=EI+VARI*XWRHT*BWZ | |
19818 | BLEFTI=(EI-VALI*XWOMT*BWZ)*(2D0*PARP(143)-1D0) | |
19819 | BRIGHI=(EI-VARI*XWOMT*BWZ)*(2D0*PARP(143)-1D0) | |
19820 | DIFLL=(ALEFTI*ALEFTF*BWRHTR+BLEFTI*BLEFTF*BWOMTR)**2+ | |
19821 | & (ALEFTI*ALEFTF*BWRHTI+BLEFTI*BLEFTF*BWOMTI)**2 | |
19822 | DIFRR=(ARIGHI*ARIGHF*BWRHTR+BRIGHI*BRIGHF*BWOMTR)**2+ | |
19823 | & (ARIGHI*ARIGHF*BWRHTI+BRIGHI*BRIGHF*BWOMTI)**2 | |
19824 | DIFLR=(ALEFTI*ARIGHF*BWRHTR+BLEFTI*BRIGHF*BWOMTR)**2+ | |
19825 | & (ALEFTI*ARIGHF*BWRHTI+BLEFTI*BRIGHF*BWOMTI)**2 | |
19826 | DIFRL=(ARIGHI*ALEFTF*BWRHTR+BRIGHI*BLEFTF*BWOMTR)**2+ | |
19827 | & (ARIGHI*ALEFTF*BWRHTI+BRIGHI*BLEFTF*BWOMTI)**2 | |
19828 | FACSIG=(DIFLL+DIFRR)*UH2+(DIFLR+DIFRL)*TH2 | |
19829 | NCHN=NCHN+1 | |
19830 | ISIG(NCHN,1)=I | |
19831 | ISIG(NCHN,2)=-I | |
19832 | ISIG(NCHN,3)=1 | |
19833 | SIGH(NCHN)=FACTC*FCOI*FACSIG | |
19834 | 1540 CONTINUE | |
19835 | ||
19836 | ENDIF | |
19837 | ||
19838 | CMRENNA++ | |
19839 | C...J: 2 -> 2, tree diagrams, SUSY processes | |
19840 | ||
19841 | ELSEIF(ISUB.LE.210) THEN | |
19842 | IF(ISUB.EQ.201) THEN | |
19843 | C...f + fbar -> e_L + e_Lbar | |
19844 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
19845 | DO 1570 I=MMIN1,MMAX1 | |
19846 | IA=IABS(I) | |
19847 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1570 | |
19848 | EI=KCHG(IA,1)/3D0 | |
19849 | TT3I=SIGN(1D0,EI+1D-6)/2D0 | |
19850 | EJ=-1D0 | |
19851 | TT3J=-1D0/2D0 | |
19852 | FCOL=1D0 | |
19853 | C...Color factor for e+ e- | |
19854 | IF(IA.GE.11) FCOL=3D0 | |
19855 | IF(ILR.EQ.1) THEN | |
19856 | A1=SFMIX(KFID,3)**2 | |
19857 | A2=SFMIX(KFID,4)**2 | |
19858 | ELSEIF(ILR.EQ.0) THEN | |
19859 | A1=SFMIX(KFID,1)**2 | |
19860 | A2=SFMIX(KFID,2)**2 | |
19861 | ENDIF | |
19862 | XLQ=(TT3J-EJ*XW)*A1 | |
19863 | XRQ=(-EJ*XW)*A2 | |
19864 | XLF=(TT3I-EI*XW) | |
19865 | XRF=(-EI*XW) | |
19866 | TAA=2D0*(EI*EJ)**2 | |
19867 | TZZ=(XLF**2+XRF**2)*(XLQ+XRQ)**2/XW**2/XW1**2 | |
19868 | TZZ=TZZ/((1D0-SQMZ/SH)**2+SQMZ*ZWID/SH**2) | |
19869 | TAZ=2D0*EI*EJ*(XLQ+XRQ)*(XLF+XRF)/XW/XW1 | |
19870 | TAZ=TAZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2)*(1D0-SQMZ/SH) | |
19871 | TNN=0.0D0 | |
19872 | TAN=0.0D0 | |
19873 | TZN=0.0D0 | |
19874 | IF(IA.GE.11.AND.IA.LE.18.AND.KFID.EQ.IA) THEN | |
19875 | FAC2=SQRT(2D0) | |
19876 | TNN1=0D0 | |
19877 | TNN2=0D0 | |
19878 | TNN3=0D0 | |
19879 | DO 1560 II=1,4 | |
19880 | DK=1D0/(TH-SMZ(II)**2) | |
19881 | FLEK=-FAC2*(TT3I*ZMIX(II,2)-TANW*(TT3I-EI)* | |
19882 | & ZMIX(II,1)) | |
19883 | FREK=FAC2*TANW*EI*ZMIX(II,1) | |
19884 | TNN1=TNN1+FLEK**2*DK | |
19885 | TNN2=TNN2+FREK**2*DK | |
19886 | DO 1550 JJ=1,4 | |
19887 | DL=1D0/(TH-SMZ(JJ)**2) | |
19888 | FLEL=-FAC2*(TT3J*ZMIX(JJ,2)-TANW*(TT3J-EJ)* | |
19889 | & ZMIX(JJ,1)) | |
19890 | FREL=FAC2*TANW*EJ*ZMIX(JJ,1) | |
19891 | TNN3=TNN3+FLEK*FREK*FLEL*FREL*DK*DL*SMZ(II)*SMZ(JJ) | |
19892 | 1550 CONTINUE | |
19893 | 1560 CONTINUE | |
19894 | TNN=(UH*TH-SQM3*SQM4)*(A1**2*TNN1**2+A2**2*TNN2**2) | |
19895 | TNN=(TNN+2D0*SH*A1*A2*TNN3)/4D0/XW**2 | |
19896 | TZN=(UH*TH-SQM3*SQM4)*(XLQ+XRQ)* | |
19897 | & (TNN1*XLF*A1+TNN2*XRF*A2) | |
19898 | TZN=TZN/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2)* | |
19899 | & (1D0-SQMZ/SH)/SH | |
19900 | TZN=TZN/XW**2/XW1 | |
19901 | TAN=EI*EJ*(UH*TH-SQM3*SQM4)/SH*(A1*TNN1+A2*TNN2)/XW | |
19902 | ENDIF | |
19903 | FACQQ1=COMFAC*AEM**2*(TAA+TZZ+TAZ)*FCOL/3D0 | |
19904 | FACQQ1=FACQQ1*( UH*TH-SQM3*SQM4 )/SH**2 | |
19905 | FACQQ2=COMFAC*AEM**2*(TNN+TZN+TAN)*FCOL/3D0 | |
19906 | NCHN=NCHN+1 | |
19907 | ISIG(NCHN,1)=I | |
19908 | ISIG(NCHN,2)=-I | |
19909 | ISIG(NCHN,3)=1 | |
19910 | SIGH(NCHN)=FACQQ1+FACQQ2 | |
19911 | 1570 CONTINUE | |
19912 | ||
19913 | ELSEIF(ISUB.EQ.203) THEN | |
19914 | C...f + fbar -> e_L + e_Rbar | |
19915 | DO 1600 I=MMIN1,MMAX1 | |
19916 | IA=IABS(I) | |
19917 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1600 | |
19918 | EI=KCHG(IABS(I),1)/3D0 | |
19919 | TT3I=SIGN(1D0,EI)/2D0 | |
19920 | EJ=-1 | |
19921 | TT3J=-1D0/2D0 | |
19922 | FCOL=1D0 | |
19923 | C...Color factor for e+ e- | |
19924 | IF(IA.GE.11) FCOL=3D0 | |
19925 | A1=SFMIX(KFID,1)**2 | |
19926 | A2=SFMIX(KFID,2)**2 | |
19927 | XLQ=(TT3J-EJ*XW) | |
19928 | XRQ=(-EJ*XW) | |
19929 | XLF=(TT3I-EI*XW) | |
19930 | XRF=(-EI*XW) | |
19931 | TZZ=(XLF**2+XRF**2)*(XLQ-XRQ)**2/XW**2/XW1**2*A1*A2 | |
19932 | TZZ=TZZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2) | |
19933 | TNN=0.0D0 | |
19934 | TZN=0.0D0 | |
19935 | IF(IA.GE.11.AND.IA.LE.18.AND.KFID.EQ.IA) THEN | |
19936 | FAC2=SQRT(2D0) | |
19937 | TNN1=0D0 | |
19938 | TNN2=0D0 | |
19939 | TNN3=0D0 | |
19940 | DO 1590 II=1,4 | |
19941 | DK=1D0/(TH-SMZ(II)**2) | |
19942 | FLEK=-FAC2*(TT3I*ZMIX(II,2)-TANW*(TT3I-EI)* | |
19943 | & ZMIX(II,1)) | |
19944 | FREK=FAC2*TANW*EI*ZMIX(II,1) | |
19945 | TNN1=TNN1+FLEK**2*DK | |
19946 | TNN2=TNN2+FREK**2*DK | |
19947 | DO 1580 JJ=1,4 | |
19948 | DL=1D0/(TH-SMZ(JJ)**2) | |
19949 | FLEL=-FAC2*(TT3J*ZMIX(JJ,2)-TANW*(TT3J-EJ)* | |
19950 | & ZMIX(JJ,1)) | |
19951 | FREL=FAC2*TANW*EJ*ZMIX(JJ,1) | |
19952 | TNN3=TNN3+FLEK*FREK*FLEL*FREL*DK*DL*SMZ(II)*SMZ(JJ) | |
19953 | 1580 CONTINUE | |
19954 | 1590 CONTINUE | |
19955 | TNN=(UH*TH-SQM3*SQM4)*A1*A2*(TNN2**2+TNN1**2) | |
19956 | TNN=(TNN+SH*(A2**2+A1**2)*TNN3)/4D0 | |
19957 | TZN=(UH*TH-SQM3*SQM4)*A1*A2 | |
19958 | TZN=TZN*(XLQ-XRQ)*(XLF*TNN1-XRF*TNN2)/XW1 | |
19959 | TZN=TZN/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2)* | |
19960 | & (1D0-SQMZ/SH)/SH | |
19961 | ENDIF | |
19962 | FACQQ1=COMFAC*AEM**2*TZZ*FCOL/3D0*(UH*TH-SQM3*SQM4)/SH2 | |
19963 | FACQQ2=COMFAC*AEM**2/XW**2*(TNN+TZN)*FCOL/3D0 | |
19964 | FACQQ=(FACQQ1+FACQQ2) | |
19965 | NCHN=NCHN+1 | |
19966 | ISIG(NCHN,1)=I | |
19967 | ISIG(NCHN,2)=-I | |
19968 | ISIG(NCHN,3)=1 | |
19969 | SIGH(NCHN)=FACQQ*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
19970 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),3) | |
19971 | NCHN=NCHN+1 | |
19972 | ISIG(NCHN,1)=I | |
19973 | ISIG(NCHN,2)=-I | |
19974 | ISIG(NCHN,3)=2 | |
19975 | SIGH(NCHN)=FACQQ*WIDS(PYCOMP(KFPR(ISUBSV,1)),3)* | |
19976 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),2) | |
19977 | 1600 CONTINUE | |
19978 | ||
19979 | ELSEIF(ISUB.EQ.210) THEN | |
19980 | C...q + qbar' -> W*- > ~l_L + ~nu_L | |
19981 | FAC0=RKF*COMFAC*AEM**2/XW**2/12D0 | |
19982 | FAC1=(TH*UH-SQM3*SQM4)/((SH-SQMW)**2+WWID**2*SQMW) | |
19983 | DO 1620 I=MMIN1,MMAX1 | |
19984 | IA=IABS(I) | |
19985 | IF(I.EQ.0.OR.IA.GT.10.OR.KFAC(1,I).EQ.0) GOTO 1620 | |
19986 | DO 1610 J=MMIN2,MMAX2 | |
19987 | JA=IABS(J) | |
19988 | IF(J.EQ.0.OR.JA.GT.10.OR.KFAC(2,J).EQ.0) GOTO 1610 | |
19989 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 1610 | |
19990 | FCKM=3D0 | |
19991 | IF(IA.LE.10) FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
19992 | KCHSUM=KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J) | |
19993 | KCHW=2 | |
19994 | IF(KCHSUM.LT.0) KCHW=3 | |
19995 | NCHN=NCHN+1 | |
19996 | ISIG(NCHN,1)=I | |
19997 | ISIG(NCHN,2)=J | |
19998 | ISIG(NCHN,3)=1 | |
19999 | SIGH(NCHN)=FAC0*FAC1*FCKM*WIDS(PYCOMP(KFPR(ISUBSV,1)), | |
20000 | & 5-KCHW)*WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHW) | |
20001 | 1610 CONTINUE | |
20002 | 1620 CONTINUE | |
20003 | ENDIF | |
20004 | ||
20005 | ELSEIF(ISUB.LE.220) THEN | |
20006 | IF(ISUB.EQ.213) THEN | |
20007 | C...f + fbar -> ~nu_L + ~nu_Lbar | |
20008 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20009 | PROPZ=(SH-SQMZ)**2+ZWID**2*SQMZ | |
20010 | XLL=0.5D0 | |
20011 | XLR=0.0D0 | |
20012 | DO 1630 I=MMIN1,MMAX1 | |
20013 | IA=IABS(I) | |
20014 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1630 | |
20015 | EI=KCHG(IA,1)/3D0 | |
20016 | FCOL=1D0 | |
20017 | C...Color factor for e+ e- | |
20018 | IF(IA.GE.11) FCOL=3D0 | |
20019 | XLQ=(SIGN(1D0,EI)-2D0*EI*XW)/2D0 | |
20020 | XRQ=-EI*XW | |
20021 | TZC=0.0D0 | |
20022 | TCC=0.0D0 | |
20023 | IF(IA.GE.11.AND.KFID.EQ.IA+1) THEN | |
20024 | TZC=VMIX(1,1)**2/(TH-SMW(1)**2)+VMIX(2,1)**2/ | |
20025 | & (TH-SMW(2)**2) | |
20026 | TCC=TZC**2 | |
20027 | TZC=TZC/XW1*(SH-SQMZ)/PROPZ*XLQ*XLL | |
20028 | ENDIF | |
20029 | FACQQ1=(XLQ**2+XRQ**2)*(XLL+XLR)**2/XW1**2/PROPZ | |
20030 | FACQQ2=TZC+TCC/4D0 | |
20031 | NCHN=NCHN+1 | |
20032 | ISIG(NCHN,1)=I | |
20033 | ISIG(NCHN,2)=-I | |
20034 | ISIG(NCHN,3)=1 | |
20035 | SIGH(NCHN)=(FACQQ1+FACQQ2)*RKF*(UH*TH-SQM3*SQM4)*COMFAC | |
20036 | & *AEM**2*FCOL/3D0/XW**2 | |
20037 | 1630 CONTINUE | |
20038 | ||
20039 | ELSEIF(ISUB.EQ.216) THEN | |
20040 | C...q + qbar -> ~chi0_1 + ~chi0_1 | |
20041 | IF(IZID1.EQ.IZID2) THEN | |
20042 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20043 | ELSE | |
20044 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
20045 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),2) | |
20046 | ENDIF | |
20047 | FACGG1=COMFAC*AEM**2/3D0/XW**2 | |
20048 | IF(IZID1.EQ.IZID2) FACGG1=FACGG1/2D0 | |
20049 | ZM12=SQM3 | |
20050 | ZM22=SQM4 | |
20051 | SR2=SQRT(2D0) | |
20052 | WU2 = (UH-ZM12)*(UH-ZM22)/SH2 | |
20053 | WT2 = (TH-ZM12)*(TH-ZM22)/SH2 | |
20054 | XS2 = SMZ(IZID1)*SMZ(IZID2)/SH | |
20055 | PROPZ2 = (SH-SQMZ)**2 + SQMZ*ZWID**2 | |
20056 | REPRPZ = (SH-SQMZ)/PROPZ2 | |
20057 | OLPP=(-ZMIX(IZID1,3)*ZMIX(IZID2,3)+ | |
20058 | & ZMIX(IZID1,4)*ZMIX(IZID2,4))/2D0 | |
20059 | DO 1640 I=MMINA,MMAXA | |
20060 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1640 | |
20061 | EI=KCHG(IABS(I),1)/3D0 | |
20062 | FCOL=1D0 | |
20063 | IF(ABS(I).GE.11) FCOL=3D0 | |
20064 | XLQ=(SIGN(1D0,EI)-2D0*EI*XW)/2D0 | |
20065 | XRQ=-EI*XW | |
20066 | XLQ=XLQ/XW1 | |
20067 | XRQ=XRQ/XW1 | |
20068 | C...Factored out sqrt(2) | |
20069 | FR1=TANW*EI*ZMIX(IZID1,1) | |
20070 | FR2=TANW*EI*ZMIX(IZID2,1) | |
20071 | FL1=-(SIGN(1D0,EI)*ZMIX(IZID1,2)-TANW* | |
20072 | & (SIGN(1D0,EI)-2D0*EI)*ZMIX(IZID1,1))/2D0 | |
20073 | FL2=-(SIGN(1D0,EI)*ZMIX(IZID2,2)-TANW* | |
20074 | & (SIGN(1D0,EI)-2D0*EI)*ZMIX(IZID2,1))/2D0 | |
20075 | FR12=FR1**2 | |
20076 | FR22=FR2**2 | |
20077 | FL12=FL1**2 | |
20078 | FL22=FL2**2 | |
20079 | XML2=PMAS(PYCOMP(KSUSY1+IABS(I)),1)**2 | |
20080 | XMR2=PMAS(PYCOMP(KSUSY2+IABS(I)),1)**2 | |
20081 | FACS=OLPP**2*(XLQ**2+XRQ**2)*(WU2+WT2-2D0*XS2)*(SH2/PROPZ2) | |
20082 | FACT=FL12*FL22*(WT2*SH2/(TH-XML2)**2+WU2*SH2/(UH-XML2)**2- | |
20083 | & 2D0*XS2*SH2/(TH-XML2)/(UH-XML2)) | |
20084 | FACU=FR12*FR22*(WT2*SH2/(TH-XMR2)**2+WU2*SH2/(UH-XMR2)**2- | |
20085 | & 2D0*XS2*SH2/(TH-XMR2)/(UH-XMR2)) | |
20086 | FACST=2D0*REPRPZ*OLPP*XLQ*FL1*FL2*( (WT2-XS2)*SH2/ | |
20087 | & (TH-XML2) + (WU2-XS2)*SH2/(UH-XML2) ) | |
20088 | FACSU=-2D0*REPRPZ*OLPP*XRQ*FR1*FR2*( (WT2-XS2)*SH2/ | |
20089 | & (TH-XMR2) + (WU2-XS2)*SH2/(UH-XMR2) ) | |
20090 | NCHN=NCHN+1 | |
20091 | ISIG(NCHN,1)=I | |
20092 | ISIG(NCHN,2)=-I | |
20093 | ISIG(NCHN,3)=1 | |
20094 | SIGH(NCHN)=FACGG1*FCOL*(FACS+FACT+FACU+FACST+FACSU) | |
20095 | 1640 CONTINUE | |
20096 | ENDIF | |
20097 | ||
20098 | ELSEIF(ISUB.LE.230) THEN | |
20099 | IF(ISUB.EQ.226) THEN | |
20100 | C...f + fbar -> ~chi+_1 + ~chi-_1 | |
20101 | FACGG1=COMFAC*AEM**2/3D0/XW**2 | |
20102 | ZM12=SQM3 | |
20103 | ZM22=SQM4 | |
20104 | WU2 = (UH-ZM12)*(UH-ZM22)/SH2 | |
20105 | WT2 = (TH-ZM12)*(TH-ZM22)/SH2 | |
20106 | WS2 = SMW(IZID1)*SMW(IZID2)/SH | |
20107 | PROPZ2 = (SH-SQMZ)**2 + SQMZ*ZWID**2 | |
20108 | REPRPZ = (SH-SQMZ)/PROPZ2 | |
20109 | DIFF=0D0 | |
20110 | IF(IZID1.EQ.IZID2) DIFF=1D0 | |
20111 | DO 1650 I=MMINA,MMAXA | |
20112 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1650 | |
20113 | EI=KCHG(IABS(I),1)/3D0 | |
20114 | FCOL=1D0 | |
20115 | IF(IABS(I).GE.11) FCOL=3D0 | |
20116 | XLQ=(SIGN(1D0,EI)-2D0*EI*XW)/2D0 | |
20117 | XRQ=-EI*XW | |
20118 | XLQ=XLQ/XW1 | |
20119 | XRQ=XRQ/XW1 | |
20120 | XLQ2=XLQ**2 | |
20121 | XRQ2=XRQ**2 | |
20122 | OLP=-VMIX(IZID1,1)*VMIX(IZID2,1)- | |
20123 | & VMIX(IZID1,2)*VMIX(IZID2,2)/2D0+XW*DIFF | |
20124 | ORP=-UMIX(IZID1,1)*UMIX(IZID2,1)- | |
20125 | & UMIX(IZID1,2)*UMIX(IZID2,2)/2D0+XW*DIFF | |
20126 | ORP2=ORP**2 | |
20127 | OLP2=OLP**2 | |
20128 | C...u-type quark - d-type squark | |
20129 | IF(MOD(I,2).EQ.0) THEN | |
20130 | FACT0 = UMIX(IZID1,1)*UMIX(IZID2,1) | |
20131 | XML2=PMAS(PYCOMP(KSUSY1+IABS(I)-1),1)**2 | |
20132 | C...d-type quark - u-type squark | |
20133 | ELSE | |
20134 | FACT0 = VMIX(IZID1,1)*VMIX(IZID2,1) | |
20135 | XML2=PMAS(PYCOMP(KSUSY1+IABS(I)+1),1)**2 | |
20136 | ENDIF | |
20137 | FACA=2D0*XW**2*DIFF*(WT2+WU2+2D0*ABS(WS2))*EI**2 | |
20138 | FACZ=0.5D0*((XLQ2+XRQ2)*(OLP2+ORP2)*(WT2+WU2)+ | |
20139 | & 4D0*(XLQ2+XRQ2)*OLP*ORP*WS2-(XLQ2-XRQ2)*(OLP2-ORP2)* | |
20140 | & (WU2-WT2))*SH2/PROPZ2 | |
20141 | FACT=FACT0**2/4D0*WT2*SH2/(TH-XML2)**2 | |
20142 | FACAZ=XW*REPRPZ*DIFF*( (XLQ+XRQ)*(OLP+ORP)*(WU2+ | |
20143 | & WT2+2D0*ABS(WS2))-(XLQ-XRQ)*(OLP-ORP)*(WU2-WT2) )*SH*(-EI) | |
20144 | FACTA=XW*DIFF/(TH-XML2)*(WT2+ABS(WS2))*SH*FACT0*(-EI) | |
20145 | FACTZ=REPRPZ/(TH-XML2)*XLQ*FACT0*(OLP*WT2+ORP*WS2)*SH2 | |
20146 | FACSUM=FACGG1*(FACA+FACAZ+FACZ+FACT+FACTA+FACTZ)*FCOL | |
20147 | NCHN=NCHN+1 | |
20148 | ISIG(NCHN,1)=I | |
20149 | ISIG(NCHN,2)=-I | |
20150 | ISIG(NCHN,3)=1 | |
20151 | IF(IZID1.EQ.IZID2) THEN | |
20152 | SIGH(NCHN)=FACSUM*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20153 | ELSE | |
20154 | SIGH(NCHN)=FACSUM*WIDS(PYCOMP(KFPR(ISUBSV,1)),3)* | |
20155 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),2) | |
20156 | NCHN=NCHN+1 | |
20157 | ISIG(NCHN,1)=I | |
20158 | ISIG(NCHN,2)=-I | |
20159 | ISIG(NCHN,3)=2 | |
20160 | SIGH(NCHN)=FACSUM*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
20161 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),3) | |
20162 | ENDIF | |
20163 | 1650 CONTINUE | |
20164 | ||
20165 | ELSEIF(ISUB.EQ.229) THEN | |
20166 | C...q + qbar' -> ~chi0_1 + ~chi+-_1 | |
20167 | FACGG1=COMFAC*AEM**2/6D0/XW**2 | |
20168 | ZM12=SQM3 | |
20169 | ZM22=SQM4 | |
20170 | ZMU2 = PMAS(PYCOMP(KSUSY1+2),1)**2 | |
20171 | ZMD2 = PMAS(PYCOMP(KSUSY1+1),1)**2 | |
20172 | WU2 = (UH-ZM12)*(UH-ZM22)/SH2 | |
20173 | WT2 = (TH-ZM12)*(TH-ZM22)/SH2 | |
20174 | WS2 = SMW(IZID1)*SMZ(IZID2)/SH | |
20175 | RT2I = 1D0/SQRT(2D0) | |
20176 | PROPW = ((SH-SQMW)**2+WWID**2*SQMW) | |
20177 | OL=-RT2I*ZMIX(IZID2,4)*VMIX(IZID1,2)+ | |
20178 | & ZMIX(IZID2,2)*VMIX(IZID1,1) | |
20179 | OR= RT2I*ZMIX(IZID2,3)*UMIX(IZID1,2)+ | |
20180 | & ZMIX(IZID2,2)*UMIX(IZID1,1) | |
20181 | OL2=OL**2 | |
20182 | OR2=OR**2 | |
20183 | CROSS=2D0*OL*OR | |
20184 | FACST0=UMIX(IZID1,1) | |
20185 | FACSU0=VMIX(IZID1,1) | |
20186 | FACSU0=FACSU0*(0.5D0*ZMIX(IZID2,2)+TANW*ZMIX(IZID2,1)/6D0) | |
20187 | FACST0=FACST0*(-0.5D0*ZMIX(IZID2,2)+TANW*ZMIX(IZID2,1)/6D0) | |
20188 | FACT0=FACST0**2 | |
20189 | FACU0=FACSU0**2 | |
20190 | FACTU0=FACSU0*FACST0 | |
20191 | FACST = -2D0*(SH-SQMW)/PROPW/(TH-ZMD2)*(WT2*SH2*OR | |
20192 | & + SH2*WS2*OL)*FACST0 | |
20193 | FACSU = 2D0*(SH-SQMW)/PROPW/(UH-ZMU2)*(WU2*SH2*OL | |
20194 | & + SH2*WS2*OR)*FACSU0 | |
20195 | FACT = WT2*SH2/(TH-ZMD2)**2*FACT0 | |
20196 | FACU = WU2*SH2/(UH-ZMU2)**2*FACU0 | |
20197 | FACTU = -2D0*WS2*SH2/(TH-ZMD2)/(UH-ZMU2)*FACTU0 | |
20198 | FACW = (OR2*WT2+OL2*WU2+CROSS*WS2)/PROPW*SH2 | |
20199 | FACGG1=FACGG1*(FACW+FACT+FACTU+FACU+FACSU+FACST) | |
20200 | DO 1670 I=MMIN1,MMAX1 | |
20201 | IA=IABS(I) | |
20202 | IF(I.EQ.0.OR.IA.GT.20.OR.KFAC(1,I).EQ.0) GOTO 1670 | |
20203 | DO 1660 J=MMIN2,MMAX2 | |
20204 | JA=IABS(J) | |
20205 | IF(J.EQ.0.OR.JA.GT.20.OR.KFAC(2,J).EQ.0) GOTO 1660 | |
20206 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 1660 | |
20207 | FCKM=3D0 | |
20208 | IF(IA.LE.10) FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
20209 | KCHSUM=KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J) | |
20210 | KCHW=2 | |
20211 | IF(KCHSUM.LT.0) KCHW=3 | |
20212 | NCHN=NCHN+1 | |
20213 | ISIG(NCHN,1)=I | |
20214 | ISIG(NCHN,2)=J | |
20215 | ISIG(NCHN,3)=1 | |
20216 | SIGH(NCHN)=FACGG1*FCKM*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
20217 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHW) | |
20218 | 1660 CONTINUE | |
20219 | 1670 CONTINUE | |
20220 | ENDIF | |
20221 | ||
20222 | ELSEIF(ISUB.LE.240) THEN | |
20223 | IF(ISUB.EQ.237) THEN | |
20224 | C...q + qbar -> gluino + ~chi0_1 | |
20225 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
20226 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),2) | |
20227 | FAC0=COMFAC*AS*AEM*4D0/9D0/XW | |
20228 | GM2=SQM3 | |
20229 | ZM2=SQM4 | |
20230 | DO 1680 I=MMINA,MMAXA | |
20231 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 1680 | |
20232 | EI=KCHG(IABS(I),1)/3D0 | |
20233 | IA=IABS(I) | |
20234 | XLQC = -TANW*EI*ZMIX(IZID,1) | |
20235 | XRQC =(SIGN(1D0,EI)*ZMIX(IZID,2)-TANW* | |
20236 | & (SIGN(1D0,EI)-2D0*EI)*ZMIX(IZID,1))/2D0 | |
20237 | XLQ2=XLQC**2 | |
20238 | XRQ2=XRQC**2 | |
20239 | XML2=PMAS(PYCOMP(KSUSY1+IA),1)**2 | |
20240 | XMR2=PMAS(PYCOMP(KSUSY2+IA),1)**2 | |
20241 | ATKIN=(TH-GM2)*(TH-ZM2)/(TH-XML2)**2 | |
20242 | AUKIN=(UH-GM2)*(UH-ZM2)/(UH-XML2)**2 | |
20243 | ATUKIN=SMZ(IZID)*SQRT(GM2)*SH/(TH-XML2)/(UH-XML2) | |
20244 | SGCHIL=XLQ2*(ATKIN+AUKIN-2D0*ATUKIN) | |
20245 | ATKIN=(TH-GM2)*(TH-ZM2)/(TH-XMR2)**2 | |
20246 | AUKIN=(UH-GM2)*(UH-ZM2)/(UH-XMR2)**2 | |
20247 | ATUKIN=SMZ(IZID)*SQRT(GM2)*SH/(TH-XMR2)/(UH-XMR2) | |
20248 | SGCHIR=XRQ2*(ATKIN+AUKIN-2D0*ATUKIN) | |
20249 | NCHN=NCHN+1 | |
20250 | ISIG(NCHN,1)=I | |
20251 | ISIG(NCHN,2)=-I | |
20252 | ISIG(NCHN,3)=1 | |
20253 | SIGH(NCHN)=FAC0*(SGCHIL+SGCHIR) | |
20254 | 1680 CONTINUE | |
20255 | ENDIF | |
20256 | ||
20257 | ELSEIF(ISUB.LE.250) THEN | |
20258 | IF(ISUB.EQ.241) THEN | |
20259 | C...q + qbar' -> ~chi+-_1 + gluino | |
20260 | FACWG=COMFAC*AS*AEM/XW*2D0/9D0 | |
20261 | GM2=SQM3 | |
20262 | ZM2=SQM4 | |
20263 | FAC01=2D0*UMIX(IZID,1)*VMIX(IZID,1) | |
20264 | FAC0=UMIX(IZID,1)**2 | |
20265 | FAC1=VMIX(IZID,1)**2 | |
20266 | DO 1700 I=MMIN1,MMAX1 | |
20267 | IA=IABS(I) | |
20268 | IF(I.EQ.0.OR.IA.GT.10.OR.KFAC(1,I).EQ.0) GOTO 1700 | |
20269 | DO 1690 J=MMIN2,MMAX2 | |
20270 | JA=IABS(J) | |
20271 | IF(J.EQ.0.OR.JA.GT.10.OR.KFAC(2,J).EQ.0) GOTO 1690 | |
20272 | IF(I*J.GT.0.OR.MOD(IA+JA,2).EQ.0) GOTO 1690 | |
20273 | FCKM=1D0 | |
20274 | IF(IA.LE.10) FCKM=VCKM((IA+1)/2,(JA+1)/2) | |
20275 | KCHSUM=KCHG(IA,1)*ISIGN(1,I)+KCHG(JA,1)*ISIGN(1,J) | |
20276 | KCHW=2 | |
20277 | IF(KCHSUM.LT.0) KCHW=3 | |
20278 | XMU2=PMAS(PYCOMP(KSUSY1+2),1)**2 | |
20279 | XMD2=PMAS(PYCOMP(KSUSY1+1),1)**2 | |
20280 | ATKIN=(TH-GM2)*(TH-ZM2)/(TH-XMU2)**2 | |
20281 | AUKIN=(UH-GM2)*(UH-ZM2)/(UH-XMD2)**2 | |
20282 | ATUKIN=SMW(IZID)*SQRT(GM2)*SH/(TH-XMU2)/(UH-XMD2) | |
20283 | XMU2=PMAS(PYCOMP(KSUSY2+2),1)**2 | |
20284 | XMD2=PMAS(PYCOMP(KSUSY2+1),1)**2 | |
20285 | ATKIN=(ATKIN+(TH-GM2)*(TH-ZM2)/(TH-XMU2)**2)/2D0 | |
20286 | AUKIN=(AUKIN+(UH-GM2)*(UH-ZM2)/(UH-XMD2)**2)/2D0 | |
20287 | ATUKIN=(ATUKIN+SMW(IZID)*SQRT(GM2)* | |
20288 | & SH/(TH-XMU2)/(UH-XMD2))/2D0 | |
20289 | NCHN=NCHN+1 | |
20290 | ISIG(NCHN,1)=I | |
20291 | ISIG(NCHN,2)=J | |
20292 | ISIG(NCHN,3)=1 | |
20293 | SIGH(NCHN)=FACWG*FCKM*(FAC0*ATKIN+FAC1*AUKIN- | |
20294 | & FAC01*ATUKIN)*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
20295 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHW) | |
20296 | 1690 CONTINUE | |
20297 | 1700 CONTINUE | |
20298 | ||
20299 | ELSEIF(ISUB.EQ.243) THEN | |
20300 | C...q + qbar -> gluino + gluino | |
20301 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20302 | XMT=SQM3-TH | |
20303 | XMU=SQM3-UH | |
20304 | DO 1710 I=MMINA,MMAXA | |
20305 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58).OR. | |
20306 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1710 | |
20307 | NCHN=NCHN+1 | |
20308 | XSU=PMAS(PYCOMP(KSUSY1+IABS(I)),1)**2-UH | |
20309 | XST=PMAS(PYCOMP(KSUSY1+IABS(I)),1)**2-TH | |
20310 | FACGG1=COMFAC*AS**2*8D0/3D0*( (XMT**2+XMU**2+ | |
20311 | & 2D0*SQM3*SH)/SH2 +4D0/9D0*(XMT**2/XST**2+ | |
20312 | & XMU**2/XSU**2) - (XMT**2+SH*SQM3)/SH/XST + | |
20313 | & SQM3*SH/XST/XSU/9D0- (XMU**2+SH*SQM3)/SH/XSU ) | |
20314 | XSU=PMAS(PYCOMP(KSUSY2+IABS(I)),1)**2-UH | |
20315 | XST=PMAS(PYCOMP(KSUSY2+IABS(I)),1)**2-TH | |
20316 | FACGG2=COMFAC*AS**2*8D0/3D0*( (XMT**2+XMU**2+ | |
20317 | & 2D0*SQM3*SH)/SH2 +4D0/9D0*(XMT**2/XST**2+ | |
20318 | & XMU**2/XSU**2) - (XMT**2+SH*SQM3)/SH/XST + | |
20319 | & SQM3*SH/XST/XSU/9D0- (XMU**2+SH*SQM3)/SH/XSU ) | |
20320 | ISIG(NCHN,1)=I | |
20321 | ISIG(NCHN,2)=-I | |
20322 | ISIG(NCHN,3)=1 | |
20323 | C...1/2 for identical particles | |
20324 | SIGH(NCHN)=0.25D0*(FACGG1+FACGG2) | |
20325 | 1710 CONTINUE | |
20326 | ||
20327 | ELSEIF(ISUB.EQ.244) THEN | |
20328 | C...g + g -> gluino + gluino | |
20329 | COMFAC=COMFAC*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20330 | XMT=SQM3-TH | |
20331 | XMU=SQM3-UH | |
20332 | FACQQ1=COMFAC*AS**2*9D0/4D0*( | |
20333 | & (XMT*XMU-2D0*SQM3*(TH+SQM3))/XMT**2 - | |
20334 | & (XMT*XMU+SQM3*(UH-TH))/SH/XMT ) | |
20335 | FACQQ2=COMFAC*AS**2*9D0/4D0*( | |
20336 | & (XMU*XMT-2D0*SQM3*(UH+SQM3))/XMU**2 - | |
20337 | & (XMU*XMT+SQM3*(TH-UH))/SH/XMU ) | |
20338 | FACQQ3=COMFAC*AS**2*9D0/4D0*(2D0*XMT*XMU/SH2 + | |
20339 | & SQM3*(SH-4D0*SQM3)/XMT/XMU) | |
20340 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1720 | |
20341 | NCHN=NCHN+1 | |
20342 | ISIG(NCHN,1)=21 | |
20343 | ISIG(NCHN,2)=21 | |
20344 | ISIG(NCHN,3)=1 | |
20345 | SIGH(NCHN)=FACQQ1/2D0 | |
20346 | NCHN=NCHN+1 | |
20347 | ISIG(NCHN,1)=21 | |
20348 | ISIG(NCHN,2)=21 | |
20349 | ISIG(NCHN,3)=2 | |
20350 | SIGH(NCHN)=FACQQ2/2D0 | |
20351 | NCHN=NCHN+1 | |
20352 | ISIG(NCHN,1)=21 | |
20353 | ISIG(NCHN,2)=21 | |
20354 | ISIG(NCHN,3)=3 | |
20355 | SIGH(NCHN)=FACQQ3/2D0 | |
20356 | 1720 CONTINUE | |
20357 | ||
20358 | ELSEIF(ISUB.EQ.246) THEN | |
20359 | C...g + q_j -> ~chi0_1 + ~q_j | |
20360 | FAC0=COMFAC*AS*AEM/6D0/XW | |
20361 | ZM2=SQM4 | |
20362 | QM2=SQM3 | |
20363 | FACZQ0=FAC0*( (ZM2-TH)/SH + | |
20364 | & (UH-ZM2)*(UH+QM2)/(UH-QM2)**2 - | |
20365 | & (SH*(UH+ZM2)+2D0*(QM2-ZM2)*(ZM2-UH))/SH/(UH-QM2) ) | |
20366 | KFNSQ=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20367 | DO 1740 I=-KFNSQ,KFNSQ,2*KFNSQ | |
20368 | IF(I.LT.MMINA.OR.I.GT.MMAXA) GOTO 1740 | |
20369 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 1740 | |
20370 | EI=KCHG(IABS(I),1)/3D0 | |
20371 | IA=IABS(I) | |
20372 | XRQZ = -TANW*EI*ZMIX(IZID,1) | |
20373 | XLQZ =(SIGN(1D0,EI)*ZMIX(IZID,2)-TANW* | |
20374 | & (SIGN(1D0,EI)-2D0*EI)*ZMIX(IZID,1))/2D0 | |
20375 | IF(ILR.EQ.0) THEN | |
20376 | BS=XLQZ**2*SFMIX(IA,1)**2+XRQZ**2*SFMIX(IA,2)**2 | |
20377 | ELSE | |
20378 | BS=XLQZ**2*SFMIX(IA,3)**2+XRQZ**2*SFMIX(IA,4)**2 | |
20379 | ENDIF | |
20380 | FACZQ=FACZQ0*BS | |
20381 | KCHQ=2 | |
20382 | IF(I.LT.0) KCHQ=3 | |
20383 | DO 1730 ISDE=1,2 | |
20384 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1730 | |
20385 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 1730 | |
20386 | NCHN=NCHN+1 | |
20387 | ISIG(NCHN,ISDE)=I | |
20388 | ISIG(NCHN,3-ISDE)=21 | |
20389 | ISIG(NCHN,3)=1 | |
20390 | SIGH(NCHN)=FACZQ*RKF*WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20391 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),2) | |
20392 | 1730 CONTINUE | |
20393 | 1740 CONTINUE | |
20394 | ENDIF | |
20395 | ||
20396 | ELSEIF(ISUB.LE.260) THEN | |
20397 | IF(ISUB.EQ.254) THEN | |
20398 | C...g + q_j -> ~chi1_1 + ~q_i | |
20399 | FAC0=COMFAC*AS*AEM/12D0/XW | |
20400 | ZM2=SQM4 | |
20401 | QM2=SQM3 | |
20402 | AU=UMIX(IZID,1)**2 | |
20403 | AD=VMIX(IZID,1)**2 | |
20404 | FACZQ0=FAC0*( (ZM2-TH)/SH + | |
20405 | & (UH-ZM2)*(UH+QM2)/(UH-QM2)**2 - | |
20406 | & (SH*(UH+ZM2)+2D0*(QM2-ZM2)*(ZM2-UH))/SH/(UH-QM2) ) | |
20407 | KFNSQ1=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20408 | IF(MOD(KFNSQ1,2).EQ.0) THEN | |
20409 | KFNSQ=KFNSQ1-1 | |
20410 | KCHW=2 | |
20411 | ELSE | |
20412 | KFNSQ=KFNSQ1+1 | |
20413 | KCHW=3 | |
20414 | ENDIF | |
20415 | DO 1760 I=-KFNSQ,KFNSQ,2*KFNSQ | |
20416 | IF(I.LT.MMINA.OR.I.GT.MMAXA) GOTO 1760 | |
20417 | IF(I.EQ.0.OR.IABS(I).GT.MSTP(58)) GOTO 1760 | |
20418 | IA=IABS(I) | |
20419 | IF(MOD(IA,2).EQ.0) THEN | |
20420 | FACZQ=FACZQ0*AU | |
20421 | ELSE | |
20422 | FACZQ=FACZQ0*AD | |
20423 | ENDIF | |
20424 | FACZQ=FACZQ*SFMIX(KFNSQ1,1+2*ILR)**2 | |
20425 | KCHQ=2 | |
20426 | IF(I.LT.0) KCHQ=3 | |
20427 | KCHWQ=KCHW | |
20428 | IF(I.LT.0) KCHWQ=5-KCHW | |
20429 | DO 1750 ISDE=1,2 | |
20430 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1750 | |
20431 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 1750 | |
20432 | NCHN=NCHN+1 | |
20433 | ISIG(NCHN,ISDE)=I | |
20434 | ISIG(NCHN,3-ISDE)=21 | |
20435 | ISIG(NCHN,3)=1 | |
20436 | SIGH(NCHN)=FACZQ*RKF*WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20437 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHWQ) | |
20438 | 1750 CONTINUE | |
20439 | 1760 CONTINUE | |
20440 | ||
20441 | ELSEIF(ISUB.EQ.258) THEN | |
20442 | C...g + q_j -> gluino + ~q_i | |
20443 | XG2=SQM4 | |
20444 | XQ2=SQM3 | |
20445 | XMT=XG2-TH | |
20446 | XMU=XG2-UH | |
20447 | XST=XQ2-TH | |
20448 | XSU=XQ2-UH | |
20449 | FACQG1=0.5D0*4D0/9D0*XMT/SH + (XMT*SH+2D0*XG2*XST)/XMT**2 - | |
20450 | & ( (SH-XQ2+XG2)*(-XST)-SH*XG2 )/SH/(-XMT) + | |
20451 | & 0.5D0*1D0/2D0*( XST*(TH+2D0*UH+XG2)-XMT*(SH-2D0*XST) + | |
20452 | & (-XMU)*(TH+XG2+2D0*XQ2) )/2D0/XMT/XSU | |
20453 | FACQG2= 4D0/9D0*(-XMU)*(UH+XQ2)/XSU**2 + 1D0/18D0* | |
20454 | & (SH*(UH+XG2) | |
20455 | & +2D0*(XQ2-XG2)*XMU)/SH/(-XSU) + 0.5D0*4D0/9D0*XMT/SH + | |
20456 | & 0.5D0*1D0/2D0*(XST*(TH+2D0*UH+XG2)-XMT*(SH-2D0*XST)+ | |
20457 | & (-XMU)*(TH+XG2+2D0*XQ2))/2D0/XMT/XSU | |
20458 | FACQG1=COMFAC*AS**2*FACQG1/2D0 | |
20459 | FACQG2=COMFAC*AS**2*FACQG2/2D0 | |
20460 | KFNSQ=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20461 | DO 1780 I=-KFNSQ,KFNSQ,2*KFNSQ | |
20462 | IF(I.LT.MMINA.OR.I.GT.MMAXA) GOTO 1780 | |
20463 | IF(I.EQ.0.OR.IABS(I).GT.10) GOTO 1780 | |
20464 | KCHQ=2 | |
20465 | IF(I.LT.0) KCHQ=3 | |
20466 | FACSEL=RKF*WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20467 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),2) | |
20468 | DO 1770 ISDE=1,2 | |
20469 | IF(ISDE.EQ.1.AND.KFAC(1,I)*KFAC(2,21).EQ.0) GOTO 1770 | |
20470 | IF(ISDE.EQ.2.AND.KFAC(1,21)*KFAC(2,I).EQ.0) GOTO 1770 | |
20471 | NCHN=NCHN+1 | |
20472 | ISIG(NCHN,ISDE)=I | |
20473 | ISIG(NCHN,3-ISDE)=21 | |
20474 | ISIG(NCHN,3)=1 | |
20475 | SIGH(NCHN)=FACQG1*FACSEL | |
20476 | NCHN=NCHN+1 | |
20477 | ISIG(NCHN,ISDE)=I | |
20478 | ISIG(NCHN,3-ISDE)=21 | |
20479 | ISIG(NCHN,3)=2 | |
20480 | SIGH(NCHN)=FACQG2*FACSEL | |
20481 | 1770 CONTINUE | |
20482 | 1780 CONTINUE | |
20483 | ENDIF | |
20484 | ||
20485 | ELSEIF(ISUB.LE.270) THEN | |
20486 | IF(ISUB.EQ.261) THEN | |
20487 | C...q_i + q_ibar -> ~t_1 + ~t_1bar | |
20488 | FACQQ1=COMFAC*( (UH*TH-SQM3*SQM4)/ SH**2 )* | |
20489 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20490 | KFNSQ=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20491 | FAC0=AS**2*4D0/9D0 | |
20492 | DO 1790 I=MMIN1,MMAX1 | |
20493 | IA=IABS(I) | |
20494 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1790 | |
20495 | IF(IA.GE.11.AND.IA.LE.18) THEN | |
20496 | EI=KCHG(IA,1)/3D0 | |
20497 | EJ=KCHG(KFNSQ,1)/3D0 | |
20498 | T3I=SIGN(1D0,EI)/2D0 | |
20499 | T3J=SIGN(1D0,EJ)/2D0 | |
20500 | XLQ=2D0*(T3J-EJ*XW)*SFMIX(KFNSQ,2*ILR+1)**2 | |
20501 | XRQ=2D0*(-EJ*XW)*SFMIX(KFNSQ,2*ILR+2)**2 | |
20502 | XLF=2D0*(T3I-EI*XW) | |
20503 | XRF=2D0*(-EI*XW) | |
20504 | TAA=0.5D0*(EI*EJ)**2 | |
20505 | TZZ=(XLF**2+XRF**2)*(XLQ+XRQ)**2/64D0/XW**2/XW1**2 | |
20506 | TZZ=TZZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2) | |
20507 | TAZ=EI*EJ*(XLQ+XRQ)*(XLF+XRF)/8D0/XW/XW1 | |
20508 | TAZ=TAZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2)*(1D0-SQMZ/SH) | |
20509 | FAC0=AEM**2*12D0*(TAA+TZZ+TAZ) | |
20510 | ENDIF | |
20511 | NCHN=NCHN+1 | |
20512 | ISIG(NCHN,1)=I | |
20513 | ISIG(NCHN,2)=-I | |
20514 | ISIG(NCHN,3)=1 | |
20515 | SIGH(NCHN)=FACQQ1*FAC0 | |
20516 | 1790 CONTINUE | |
20517 | ||
20518 | ELSEIF(ISUB.EQ.263) THEN | |
20519 | C...f + fbar -> ~t1 + ~t2bar | |
20520 | DO 1800 I=MMIN1,MMAX1 | |
20521 | IA=IABS(I) | |
20522 | IF(I.EQ.0.OR.KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1800 | |
20523 | EI=KCHG(IABS(I),1)/3D0 | |
20524 | TT3I=SIGN(1D0,EI)/2D0 | |
20525 | EJ=2D0/3D0 | |
20526 | TT3J=1D0/2D0 | |
20527 | FCOL=1D0 | |
20528 | C...Color factor for e+ e- | |
20529 | IF(IA.GE.11) FCOL=3D0 | |
20530 | XLQ=2D0*(TT3J-EJ*XW) | |
20531 | XRQ=2D0*(-EJ*XW) | |
20532 | XLF=2D0*(TT3I-EI*XW) | |
20533 | XRF=2D0*(-EI*XW) | |
20534 | TZZ=(XLF**2+XRF**2)*(XLQ-XRQ)**2/64D0/XW**2/XW1**2 | |
20535 | TZZ=TZZ*(SFMIX(6,1)*SFMIX(6,2))**2 | |
20536 | TZZ=TZZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2) | |
20537 | C...Factor of 2 for t1 t2bar + t2 t1bar | |
20538 | FACQQ1=2D0*COMFAC*AEM**2*TZZ*FCOL*4D0 | |
20539 | FACQQ1=FACQQ1*( UH*TH-SQM3*SQM4 )/SH2 | |
20540 | NCHN=NCHN+1 | |
20541 | ISIG(NCHN,1)=I | |
20542 | ISIG(NCHN,2)=-I | |
20543 | ISIG(NCHN,3)=1 | |
20544 | SIGH(NCHN)=FACQQ1*WIDS(PYCOMP(KFPR(ISUBSV,1)),2)* | |
20545 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),3) | |
20546 | NCHN=NCHN+1 | |
20547 | ISIG(NCHN,1)=I | |
20548 | ISIG(NCHN,2)=-I | |
20549 | ISIG(NCHN,3)=2 | |
20550 | SIGH(NCHN)=FACQQ1*WIDS(PYCOMP(KFPR(ISUBSV,1)),3)* | |
20551 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),2) | |
20552 | 1800 CONTINUE | |
20553 | ||
20554 | ELSEIF(ISUB.EQ.264) THEN | |
20555 | C...g + g -> ~t_1 + ~t_1bar | |
20556 | XSU=SQM3-UH | |
20557 | XST=SQM3-TH | |
20558 | FAC0=COMFAC*AS**2*(7D0/48D0+3D0*(UH-TH)**2/16D0/SH2 )*0.5D0* | |
20559 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20560 | FACQQ1=FAC0*(0.5D0+2D0*SQM3*TH/XST**2 + 2D0*SQM3**2/XSU/XST) | |
20561 | FACQQ2=FAC0*(0.5D0+2D0*SQM3*UH/XSU**2 + 2D0*SQM3**2/XSU/XST) | |
20562 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1810 | |
20563 | NCHN=NCHN+1 | |
20564 | ISIG(NCHN,1)=21 | |
20565 | ISIG(NCHN,2)=21 | |
20566 | ISIG(NCHN,3)=1 | |
20567 | SIGH(NCHN)=FACQQ1 | |
20568 | NCHN=NCHN+1 | |
20569 | ISIG(NCHN,1)=21 | |
20570 | ISIG(NCHN,2)=21 | |
20571 | ISIG(NCHN,3)=2 | |
20572 | SIGH(NCHN)=FACQQ2 | |
20573 | 1810 CONTINUE | |
20574 | ENDIF | |
20575 | ||
20576 | ELSEIF(ISUB.LE.280) THEN | |
20577 | IF(ISUB.EQ.271) THEN | |
20578 | C...q + q' -> ~q + ~q' (~g exchange) | |
20579 | XMG2=PMAS(PYCOMP(KSUSY1+21),1)**2 | |
20580 | XMT=XMG2-TH | |
20581 | XMU=XMG2-UH | |
20582 | XSU1=SQM3-UH | |
20583 | XSU2=SQM4-UH | |
20584 | XST1=SQM3-TH | |
20585 | XST2=SQM4-TH | |
20586 | IF(ILR.EQ.1) THEN | |
20587 | FACQQ1=COMFAC*AS**2*4D0/9D0*( -(XST1*XST2+SH*TH)/XMT**2 ) | |
20588 | FACQQ2=COMFAC*AS**2*4D0/9D0*( -(XSU1*XSU2+SH*UH)/XMU**2 ) | |
20589 | FACQQB=0.0D0 | |
20590 | ELSE | |
20591 | FACQQ1=0.5D0*COMFAC*AS**2*4D0/9D0*( SH*XMG2/XMT**2 ) | |
20592 | FACQQ2=0.5D0*COMFAC*AS**2*4D0/9D0*( SH*XMG2/XMU**2 ) | |
20593 | FACQQB=0.5D0*COMFAC*AS**2*4D0/9D0*( -2D0*SH*XMG2/3D0/ | |
20594 | & XMT/XMU ) | |
20595 | ENDIF | |
20596 | KFNSQI=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20597 | KFNSQJ=MOD(KFPR(ISUBSV,2),KSUSY1) | |
20598 | DO 1830 I=-KFNSQI,KFNSQI,2*KFNSQI | |
20599 | IF(I.LT.MMIN1.OR.I.GT.MMAX1) GOTO 1830 | |
20600 | IA=IABS(I) | |
20601 | IF(I.EQ.0.OR.IA.GT.MSTP(58).OR.KFAC(1,I).EQ.0) GOTO 1830 | |
20602 | KCHQ=2 | |
20603 | IF(I.LT.0) KCHQ=3 | |
20604 | DO 1820 J=-KFNSQJ,KFNSQJ,2*KFNSQJ | |
20605 | IF(J.LT.MMIN2.OR.J.GT.MMAX2) GOTO 1820 | |
20606 | JA=IABS(J) | |
20607 | IF(J.EQ.0.OR.JA.GT.MSTP(58).OR.KFAC(2,J).EQ.0) GOTO 1820 | |
20608 | IF(I*J.LT.0) GOTO 1820 | |
20609 | NCHN=NCHN+1 | |
20610 | ISIG(NCHN,1)=I | |
20611 | ISIG(NCHN,2)=J | |
20612 | ISIG(NCHN,3)=1 | |
20613 | SIGH(NCHN)=FACQQ1*RKF*WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20614 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHQ) | |
20615 | IF(I.EQ.J) THEN | |
20616 | IF(ISUBSV.LE.272) THEN | |
20617 | SIGH(NCHN)=(FACQQ1+0.5D0*FACQQB)*RKF* | |
20618 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ+2) | |
20619 | ELSE | |
20620 | SIGH(NCHN)=(FACQQ1+0.5D0*FACQQB)*RKF* | |
20621 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20622 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHQ) | |
20623 | ENDIF | |
20624 | NCHN=NCHN+1 | |
20625 | ISIG(NCHN,1)=I | |
20626 | ISIG(NCHN,2)=J | |
20627 | ISIG(NCHN,3)=2 | |
20628 | IF(ISUBSV.LE.272) THEN | |
20629 | SIGH(NCHN)=(FACQQ2+0.5D0*FACQQB)*RKF* | |
20630 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ+2) | |
20631 | ELSE | |
20632 | SIGH(NCHN)=(FACQQ2+0.5D0*FACQQB)*RKF* | |
20633 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20634 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),KCHQ) | |
20635 | ENDIF | |
20636 | ENDIF | |
20637 | 1820 CONTINUE | |
20638 | 1830 CONTINUE | |
20639 | ||
20640 | ELSEIF(ISUB.EQ.274) THEN | |
20641 | C...q + qbar -> ~q' + ~qbar' | |
20642 | XMG2=PMAS(PYCOMP(KSUSY1+21),1)**2 | |
20643 | XMT=XMG2-TH | |
20644 | XMU=XMG2-UH | |
20645 | IF(ILR.EQ.0) THEN | |
20646 | FACQQ1=COMFAC*AS**2*4D0/9D0*( | |
20647 | & (UH*TH-SQM3*SQM4)/XMT**2 ) | |
20648 | FACQQB=COMFAC*AS**2*4D0/9D0*( | |
20649 | & (UH*TH-SQM3*SQM4)/SH2*(2D0-2D0/3D0*SH/XMT**2)) | |
20650 | FACQQB=FACQQB+FACQQ1 | |
20651 | ELSE | |
20652 | FACQQ1=COMFAC*AS**2*4D0/9D0*( XMG2*SH/XMT**2 ) | |
20653 | FACQQB=FACQQ1 | |
20654 | ENDIF | |
20655 | KFNSQI=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20656 | KFNSQJ=MOD(KFPR(ISUBSV,2),KSUSY1) | |
20657 | DO 1850 I=-KFNSQI,KFNSQI,2*KFNSQI | |
20658 | IF(I.LT.MMIN1.OR.I.GT.MMAX1) GOTO 1850 | |
20659 | IA=IABS(I) | |
20660 | IF(I.EQ.0.OR.IA.GT.MSTP(58).OR.KFAC(1,I).EQ.0) GOTO 1850 | |
20661 | KCHQ=2 | |
20662 | IF(I.LT.0) KCHQ=3 | |
20663 | DO 1840 J=-KFNSQJ,KFNSQJ,2*KFNSQJ | |
20664 | IF(J.LT.MMIN2.OR.J.GT.MMAX2) GOTO 1840 | |
20665 | JA=IABS(J) | |
20666 | IF(J.EQ.0.OR.JA.GT.MSTP(58).OR.KFAC(2,J).EQ.0) GOTO 1840 | |
20667 | IF(I*J.GT.0) GOTO 1840 | |
20668 | NCHN=NCHN+1 | |
20669 | ISIG(NCHN,1)=I | |
20670 | ISIG(NCHN,2)=J | |
20671 | ISIG(NCHN,3)=1 | |
20672 | SIGH(NCHN)=FACQQ1*RKF*WIDS(PYCOMP(KFPR(ISUBSV,1)),KCHQ)* | |
20673 | & WIDS(PYCOMP(KFPR(ISUBSV,2)),5-KCHQ) | |
20674 | IF(I.EQ.-J) SIGH(NCHN)=FACQQB*RKF* | |
20675 | & WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20676 | 1840 CONTINUE | |
20677 | 1850 CONTINUE | |
20678 | ||
20679 | ELSEIF(ISUB.EQ.277) THEN | |
20680 | C...q_i + q_ibar -> ~q_j + ~q_jbar ,i .ne. j | |
20681 | C...if i .eq. j covered in 274 | |
20682 | FACQQ1=COMFAC*( (UH*TH-SQM3*SQM4)/ SH**2 ) | |
20683 | KFNSQ=MOD(KFPR(ISUBSV,1),KSUSY1) | |
20684 | FAC0=0D0 | |
20685 | DO 1860 I=MMIN1,MMAX1 | |
20686 | IA=IABS(I) | |
20687 | IF(I.EQ.0.OR.IA.GT.MSTP(58).OR. | |
20688 | & KFAC(1,I)*KFAC(2,-I).EQ.0) GOTO 1860 | |
20689 | IF(IA.EQ.KFNSQ) GOTO 1860 | |
20690 | IF(IA.EQ.11.OR.IA.EQ.13.OR.IA.EQ.15) THEN | |
20691 | EI=KCHG(IA,1)/3D0 | |
20692 | EJ=KCHG(KFNSQ,1)/3D0 | |
20693 | T3J=SIGN(0.5D0,EJ) | |
20694 | T3I=SIGN(1D0,EI)/2D0 | |
20695 | IF(ILR.EQ.0) THEN | |
20696 | XLQ=2D0*(T3J-EJ*XW)*SFMIX(KFNSQ,1) | |
20697 | XRQ=2D0*(-EJ*XW)*SFMIX(KFNSQ,2) | |
20698 | ELSE | |
20699 | XLQ=2D0*(T3J-EJ*XW)*SFMIX(KFNSQ,3) | |
20700 | XRQ=2D0*(-EJ*XW)*SFMIX(KFNSQ,4) | |
20701 | ENDIF | |
20702 | XLF=2D0*(T3I-EI*XW) | |
20703 | XRF=2D0*(-EI*XW) | |
20704 | IF(ILR.EQ.0) THEN | |
20705 | XRQ=0D0 | |
20706 | ELSE | |
20707 | XLQ=0D0 | |
20708 | ENDIF | |
20709 | TAA=0.5D0*(EI*EJ)**2 | |
20710 | TZZ=(XLF**2+XRF**2)*(XLQ+XRQ)**2/64D0/XW**2/XW1**2 | |
20711 | TZZ=TZZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2) | |
20712 | TAZ=EI*EJ*(XLQ+XRQ)*(XLF+XRF)/8D0/XW/XW1 | |
20713 | TAZ=TAZ/((1D0-SQMZ/SH)**2+SQMZ*(ZWID/SH)**2)*(1D0-SQMZ/SH) | |
20714 | FAC0=AEM**2*12D0*(TAA+TZZ+TAZ) | |
20715 | ELSEIF(IA.LE.6) THEN | |
20716 | FAC0=AS**2*8D0/9D0/2D0 | |
20717 | ENDIF | |
20718 | NCHN=NCHN+1 | |
20719 | ISIG(NCHN,1)=I | |
20720 | ISIG(NCHN,2)=-I | |
20721 | ISIG(NCHN,3)=1 | |
20722 | SIGH(NCHN)=FACQQ1*FAC0*RKF*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20723 | 1860 CONTINUE | |
20724 | ||
20725 | ELSEIF(ISUB.EQ.279) THEN | |
20726 | C...g + g -> ~q_j + ~q_jbar | |
20727 | XSU=SQM3-UH | |
20728 | XST=SQM3-TH | |
20729 | C...5=RKF because ~t ~tbar treated separately | |
20730 | FAC0=RKF*COMFAC*AS**2*( 7D0/48D0+3D0*(UH-TH)**2/16D0/SH2 ) | |
20731 | FACQQ1=FAC0*(0.5D0+2D0*SQM3*TH/XST**2 + 2D0*SQM3**2/XSU/XST) | |
20732 | FACQQ2=FAC0*(0.5D0+2D0*SQM3*UH/XSU**2 + 2D0*SQM3**2/XSU/XST) | |
20733 | IF(KFAC(1,21)*KFAC(2,21).EQ.0) GOTO 1870 | |
20734 | NCHN=NCHN+1 | |
20735 | ISIG(NCHN,1)=21 | |
20736 | ISIG(NCHN,2)=21 | |
20737 | ISIG(NCHN,3)=1 | |
20738 | SIGH(NCHN)=FACQQ1/2D0*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20739 | NCHN=NCHN+1 | |
20740 | ISIG(NCHN,1)=21 | |
20741 | ISIG(NCHN,2)=21 | |
20742 | ISIG(NCHN,3)=2 | |
20743 | SIGH(NCHN)=FACQQ2/2D0*WIDS(PYCOMP(KFPR(ISUBSV,1)),1) | |
20744 | 1870 CONTINUE | |
20745 | ||
20746 | ENDIF | |
20747 | CMRENNA-- | |
20748 | ENDIF | |
20749 | ||
20750 | C...Multiply with parton distributions | |
20751 | IF(ISUB.LE.90.OR.ISUB.GE.96) THEN | |
20752 | DO 1880 ICHN=1,NCHN | |
20753 | IF(MINT(45).GE.2) THEN | |
20754 | KFL1=ISIG(ICHN,1) | |
20755 | SIGH(ICHN)=SIGH(ICHN)*XSFX(1,KFL1) | |
20756 | ENDIF | |
20757 | IF(MINT(46).GE.2) THEN | |
20758 | KFL2=ISIG(ICHN,2) | |
20759 | SIGH(ICHN)=SIGH(ICHN)*XSFX(2,KFL2) | |
20760 | ENDIF | |
20761 | SIGS=SIGS+SIGH(ICHN) | |
20762 | 1880 CONTINUE | |
20763 | ENDIF | |
20764 | ||
20765 | RETURN | |
20766 | END | |
20767 | ||
20768 | C********************************************************************* | |
20769 | ||
20770 | C...PYPDFU | |
20771 | C...Gives electron, photon, pi+, neutron, proton and hyperon | |
20772 | C...parton distributions according to a few different parametrizations. | |
20773 | C...Note that what is coded is x times the probability distribution, | |
20774 | C...i.e. xq(x,Q2) etc. | |
20775 | ||
20776 | SUBROUTINE PYPDFU(KF,X,Q2,XPQ) | |
20777 | ||
20778 | C...Double precision and integer declarations. | |
20779 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
20780 | INTEGER PYK,PYCHGE,PYCOMP | |
20781 | C...Commonblocks. | |
20782 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
20783 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
20784 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
20785 | COMMON/PYINT1/MINT(400),VINT(400) | |
20786 | COMMON/PYINT8/XPVMD(-6:6),XPANL(-6:6),XPANH(-6:6),XPBEH(-6:6), | |
20787 | &XPDIR(-6:6) | |
20788 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/,/PYINT8/ | |
20789 | C...Local arrays. | |
20790 | DIMENSION XPQ(-25:25),XPEL(-25:25),XPGA(-6:6),VXPGA(-6:6), | |
20791 | &XPPI(-6:6),XPPR(-6:6) | |
20792 | ||
20793 | C...Interface to PDFLIB. | |
20794 | COMMON/W50513/XMIN,XMAX,Q2MIN,Q2MAX | |
20795 | SAVE /W50513/ | |
20796 | DOUBLE PRECISION XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GLU, | |
20797 | &VALUE(20),XMIN,XMAX,Q2MIN,Q2MAX | |
20798 | CHARACTER*20 PARM(20) | |
20799 | DATA VALUE/20*0D0/,PARM/20*' '/ | |
20800 | ||
20801 | C...Data related to Schuler-Sjostrand photon distributions. | |
20802 | DATA ALAMGA/0.2D0/, PMCGA/1.3D0/, PMBGA/4.6D0/ | |
20803 | ||
20804 | C...Reset parton distributions. | |
20805 | MINT(92)=0 | |
20806 | DO 100 KFL=-25,25 | |
20807 | XPQ(KFL)=0D0 | |
20808 | 100 CONTINUE | |
20809 | ||
20810 | C...Check x and particle species. | |
20811 | IF(X.LE.0D0.OR.X.GE.1D0) THEN | |
20812 | WRITE(MSTU(11),5000) X | |
20813 | RETURN | |
20814 | ENDIF | |
20815 | KFA=IABS(KF) | |
20816 | IF(KFA.NE.11.AND.KFA.NE.22.AND.KFA.NE.211.AND.KFA.NE.2112.AND. | |
20817 | &KFA.NE.2212.AND.KFA.NE.3122.AND.KFA.NE.3112.AND.KFA.NE.3212 | |
20818 | &.AND.KFA.NE.3222.AND.KFA.NE.3312.AND.KFA.NE.3322.AND. | |
20819 | &KFA.NE.3334.AND.KFA.NE.111) THEN | |
20820 | WRITE(MSTU(11),5100) KF | |
20821 | RETURN | |
20822 | ENDIF | |
20823 | ||
20824 | C...Electron parton distribution call. | |
20825 | IF(KFA.EQ.11) THEN | |
20826 | CALL PYPDEL(X,Q2,XPEL) | |
20827 | DO 110 KFL=-25,25 | |
20828 | XPQ(KFL)=XPEL(KFL) | |
20829 | 110 CONTINUE | |
20830 | ||
20831 | C...Photon parton distribution call (VDM+anomalous). | |
20832 | ELSEIF(KFA.EQ.22.AND.MINT(109).LE.1) THEN | |
20833 | IF(MSTP(56).EQ.1.AND.MSTP(55).EQ.1) THEN | |
20834 | CALL PYPDGA(X,Q2,XPGA) | |
20835 | DO 120 KFL=-6,6 | |
20836 | XPQ(KFL)=XPGA(KFL) | |
20837 | 120 CONTINUE | |
20838 | ELSEIF(MSTP(56).EQ.1.AND.MSTP(55).GE.5.AND.MSTP(55).LE.8) THEN | |
20839 | Q2MX=Q2 | |
20840 | P2MX=0.36D0 | |
20841 | IF(MSTP(55).GE.7) P2MX=4.0D0 | |
20842 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20843 | CALL PYGGAM(MSTP(55)-4,X,Q2MX,0D0,MSTP(60),F2GAM,XPGA) | |
20844 | DO 130 KFL=-6,6 | |
20845 | XPQ(KFL)=XPGA(KFL) | |
20846 | 130 CONTINUE | |
20847 | VINT(231)=P2MX | |
20848 | ELSEIF(MSTP(56).EQ.1.AND.MSTP(55).GE.9.AND.MSTP(55).LE.12) THEN | |
20849 | Q2MX=Q2 | |
20850 | P2MX=0.36D0 | |
20851 | IF(MSTP(55).GE.11) P2MX=4.0D0 | |
20852 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20853 | CALL PYGGAM(MSTP(55)-8,X,Q2MX,0D0,MSTP(60),F2GAM,XPGA) | |
20854 | DO 140 KFL=-6,6 | |
20855 | XPQ(KFL)=XPVMD(KFL)+XPANL(KFL)+XPBEH(KFL)+XPDIR(KFL) | |
20856 | 140 CONTINUE | |
20857 | VINT(231)=P2MX | |
20858 | ELSEIF(MSTP(56).EQ.2) THEN | |
20859 | C...Call PDFLIB parton distributions. | |
20860 | PARM(1)='NPTYPE' | |
20861 | VALUE(1)=3 | |
20862 | PARM(2)='NGROUP' | |
20863 | VALUE(2)=MSTP(55)/1000 | |
20864 | PARM(3)='NSET' | |
20865 | VALUE(3)=MOD(MSTP(55),1000) | |
20866 | IF(MINT(93).NE.3000000+MSTP(55)) THEN | |
20867 | CALL PDFSET(PARM,VALUE) | |
20868 | MINT(93)=3000000+MSTP(55) | |
20869 | ENDIF | |
20870 | XX=X | |
20871 | QQ=SQRT(MAX(0D0,Q2MIN,Q2)) | |
20872 | IF(MSTP(57).EQ.0) QQ=SQRT(Q2MIN) | |
20873 | CALL STRUCTM(XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GLU) | |
20874 | VINT(231)=Q2MIN | |
20875 | XPQ(0)=GLU | |
20876 | XPQ(1)=DNV | |
20877 | XPQ(-1)=DNV | |
20878 | XPQ(2)=UPV | |
20879 | XPQ(-2)=UPV | |
20880 | XPQ(3)=STR | |
20881 | XPQ(-3)=STR | |
20882 | XPQ(4)=CHM | |
20883 | XPQ(-4)=CHM | |
20884 | XPQ(5)=BOT | |
20885 | XPQ(-5)=BOT | |
20886 | XPQ(6)=TOP | |
20887 | XPQ(-6)=TOP | |
20888 | ELSE | |
20889 | WRITE(MSTU(11),5200) KF,MSTP(56),MSTP(55) | |
20890 | ENDIF | |
20891 | ||
20892 | C...Pion/gammaVDM parton distribution call. | |
20893 | ELSEIF(KFA.EQ.211.OR.KFA.EQ.111.OR.(KFA.EQ.22.AND. | |
20894 | & MINT(109).EQ.2)) THEN | |
20895 | IF(KFA.EQ.22.AND.MSTP(56).EQ.1.AND.MSTP(55).GE.5.AND. | |
20896 | & MSTP(55).LE.12) THEN | |
20897 | ISET=1+MOD(MSTP(55)-1,4) | |
20898 | Q2MX=Q2 | |
20899 | P2MX=0.36D0 | |
20900 | IF(ISET.GE.3) P2MX=4.0D0 | |
20901 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20902 | CALL PYGVMD(ISET,2,X,Q2MX,P2MX,ALAMGA,XPGA,VXPGA) | |
20903 | DO 150 KFL=-6,6 | |
20904 | XPQ(KFL)=XPGA(KFL) | |
20905 | 150 CONTINUE | |
20906 | VINT(231)=P2MX | |
20907 | ELSEIF(MSTP(54).EQ.1.AND.MSTP(53).GE.1.AND.MSTP(53).LE.3) THEN | |
20908 | CALL PYPDPI(X,Q2,XPPI) | |
20909 | DO 160 KFL=-6,6 | |
20910 | XPQ(KFL)=XPPI(KFL) | |
20911 | 160 CONTINUE | |
20912 | ELSEIF(MSTP(54).EQ.2) THEN | |
20913 | C...Call PDFLIB parton distributions. | |
20914 | PARM(1)='NPTYPE' | |
20915 | VALUE(1)=2 | |
20916 | PARM(2)='NGROUP' | |
20917 | VALUE(2)=MSTP(53)/1000 | |
20918 | PARM(3)='NSET' | |
20919 | VALUE(3)=MOD(MSTP(53),1000) | |
20920 | IF(MINT(93).NE.2000000+MSTP(53)) THEN | |
20921 | CALL PDFSET(PARM,VALUE) | |
20922 | MINT(93)=2000000+MSTP(53) | |
20923 | ENDIF | |
20924 | XX=X | |
20925 | QQ=SQRT(MAX(0D0,Q2MIN,Q2)) | |
20926 | IF(MSTP(57).EQ.0) QQ=SQRT(Q2MIN) | |
20927 | CALL STRUCTM(XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GLU) | |
20928 | VINT(231)=Q2MIN | |
20929 | XPQ(0)=GLU | |
20930 | XPQ(1)=DSEA | |
20931 | XPQ(-1)=UPV+DSEA | |
20932 | XPQ(2)=UPV+USEA | |
20933 | XPQ(-2)=USEA | |
20934 | XPQ(3)=STR | |
20935 | XPQ(-3)=STR | |
20936 | XPQ(4)=CHM | |
20937 | XPQ(-4)=CHM | |
20938 | XPQ(5)=BOT | |
20939 | XPQ(-5)=BOT | |
20940 | XPQ(6)=TOP | |
20941 | XPQ(-6)=TOP | |
20942 | ELSE | |
20943 | WRITE(MSTU(11),5200) KF,MSTP(54),MSTP(53) | |
20944 | ENDIF | |
20945 | ||
20946 | C...Anomalous photon parton distribution call. | |
20947 | ELSEIF(KFA.EQ.22.AND.MINT(109).EQ.3) THEN | |
20948 | Q2MX=Q2 | |
20949 | P2MX=PARP(15)**2 | |
20950 | IF(MSTP(56).EQ.1.AND.MSTP(55).LE.8) THEN | |
20951 | IF(MSTP(55).EQ.5.OR.MSTP(55).EQ.6) P2MX=0.36D0 | |
20952 | IF(MSTP(55).EQ.7.OR.MSTP(55).EQ.8) P2MX=4.0D0 | |
20953 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20954 | CALL PYGANO(0,X,Q2MX,P2MX,ALAMGA,XPGA,VXPGA) | |
20955 | DO 170 KFL=-6,6 | |
20956 | XPQ(KFL)=XPGA(KFL) | |
20957 | 170 CONTINUE | |
20958 | VINT(231)=P2MX | |
20959 | ELSEIF(MSTP(56).EQ.1) THEN | |
20960 | IF(MSTP(55).EQ.9.OR.MSTP(55).EQ.10) P2MX=0.36D0 | |
20961 | IF(MSTP(55).EQ.11.OR.MSTP(55).EQ.12) P2MX=4.0D0 | |
20962 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20963 | CALL PYGGAM(MSTP(55)-8,X,Q2MX,0D0,MSTP(60),F2GM,XPGA) | |
20964 | DO 180 KFL=-6,6 | |
20965 | XPQ(KFL)=MAX(0D0,XPANL(KFL)+XPBEH(KFL)+XPDIR(KFL)) | |
20966 | 180 CONTINUE | |
20967 | VINT(231)=P2MX | |
20968 | ELSEIF(MSTP(56).EQ.2) THEN | |
20969 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20970 | CALL PYGANO(0,X,Q2MX,P2MX,ALAMGA,XPGA,VXPGA) | |
20971 | DO 190 KFL=-6,6 | |
20972 | XPQ(KFL)=XPGA(KFL) | |
20973 | 190 CONTINUE | |
20974 | VINT(231)=P2MX | |
20975 | ELSEIF(MSTP(55).GE.1.AND.MSTP(55).LE.5) THEN | |
20976 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20977 | CALL PYGVMD(0,MSTP(55),X,Q2MX,P2MX,PARP(1),XPGA,VXPGA) | |
20978 | DO 200 KFL=-6,6 | |
20979 | XPQ(KFL)=XPGA(KFL) | |
20980 | 200 CONTINUE | |
20981 | VINT(231)=P2MX | |
20982 | ELSE | |
20983 | 210 RKF=11D0*PYR(0) | |
20984 | KFR=1 | |
20985 | IF(RKF.GT.1D0) KFR=2 | |
20986 | IF(RKF.GT.5D0) KFR=3 | |
20987 | IF(RKF.GT.6D0) KFR=4 | |
20988 | IF(RKF.GT.10D0) KFR=5 | |
20989 | IF(KFR.EQ.4.AND.Q2.LT.PMCGA**2) GOTO 210 | |
20990 | IF(KFR.EQ.5.AND.Q2.LT.PMBGA**2) GOTO 210 | |
20991 | IF(MSTP(57).EQ.0) Q2MX=P2MX | |
20992 | CALL PYGVMD(0,KFR,X,Q2MX,P2MX,PARP(1),XPGA,VXPGA) | |
20993 | DO 220 KFL=-6,6 | |
20994 | XPQ(KFL)=XPGA(KFL) | |
20995 | 220 CONTINUE | |
20996 | VINT(231)=P2MX | |
20997 | ENDIF | |
20998 | ||
20999 | C...Proton parton distribution call. | |
21000 | ELSE | |
21001 | IF(MSTP(52).EQ.1.AND.MSTP(51).GE.1.AND.MSTP(51).LE.11) THEN | |
21002 | CALL PYPDPR(X,Q2,XPPR) | |
21003 | DO 230 KFL=-6,6 | |
21004 | XPQ(KFL)=XPPR(KFL) | |
21005 | 230 CONTINUE | |
21006 | ELSEIF(MSTP(52).EQ.2) THEN | |
21007 | C...Call PDFLIB parton distributions. | |
21008 | PARM(1)='NPTYPE' | |
21009 | VALUE(1)=1 | |
21010 | PARM(2)='NGROUP' | |
21011 | VALUE(2)=MSTP(51)/1000 | |
21012 | PARM(3)='NSET' | |
21013 | VALUE(3)=MOD(MSTP(51),1000) | |
21014 | IF(MINT(93).NE.1000000+MSTP(51)) THEN | |
21015 | CALL PDFSET(PARM,VALUE) | |
21016 | MINT(93)=1000000+MSTP(51) | |
21017 | ENDIF | |
21018 | XX=X | |
21019 | QQ=SQRT(MAX(0D0,Q2MIN,Q2)) | |
21020 | IF(MSTP(57).EQ.0) QQ=SQRT(Q2MIN) | |
21021 | CALL STRUCTM(XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GLU) | |
21022 | VINT(231)=Q2MIN | |
21023 | XPQ(0)=GLU | |
21024 | XPQ(1)=DNV+DSEA | |
21025 | XPQ(-1)=DSEA | |
21026 | XPQ(2)=UPV+USEA | |
21027 | XPQ(-2)=USEA | |
21028 | XPQ(3)=STR | |
21029 | XPQ(-3)=STR | |
21030 | XPQ(4)=CHM | |
21031 | XPQ(-4)=CHM | |
21032 | XPQ(5)=BOT | |
21033 | XPQ(-5)=BOT | |
21034 | XPQ(6)=TOP | |
21035 | XPQ(-6)=TOP | |
21036 | ELSE | |
21037 | WRITE(MSTU(11),5200) KF,MSTP(52),MSTP(51) | |
21038 | ENDIF | |
21039 | ENDIF | |
21040 | ||
21041 | C...Isospin average for pi0/gammaVDM. | |
21042 | IF(KFA.EQ.111.OR.(KFA.EQ.22.AND.MINT(109).EQ.2)) THEN | |
21043 | IF(KFA.EQ.22.AND.MSTP(55).GE.5.AND.MSTP(55).LE.12) THEN | |
21044 | XPV=XPQ(2)-XPQ(1) | |
21045 | XPQ(2)=XPQ(1) | |
21046 | XPQ(-2)=XPQ(-1) | |
21047 | ELSE | |
21048 | XPS=0.5D0*(XPQ(1)+XPQ(-2)) | |
21049 | XPV=0.5D0*(XPQ(2)+XPQ(-1))-XPS | |
21050 | XPQ(2)=XPS | |
21051 | XPQ(-1)=XPS | |
21052 | ENDIF | |
21053 | IF(KFA.EQ.22.AND.MINT(105).LE.223) THEN | |
21054 | XPQ(1)=XPQ(1)+0.2D0*XPV | |
21055 | XPQ(-1)=XPQ(-1)+0.2D0*XPV | |
21056 | XPQ(2)=XPQ(2)+0.8D0*XPV | |
21057 | XPQ(-2)=XPQ(-2)+0.8D0*XPV | |
21058 | ELSEIF(KFA.EQ.22.AND.MINT(105).EQ.333) THEN | |
21059 | XPQ(3)=XPQ(3)+XPV | |
21060 | XPQ(-3)=XPQ(-3)+XPV | |
21061 | ELSEIF(KFA.EQ.22.AND.MINT(105).EQ.443) THEN | |
21062 | XPQ(4)=XPQ(4)+XPV | |
21063 | XPQ(-4)=XPQ(-4)+XPV | |
21064 | IF(MSTP(55).GE.9) THEN | |
21065 | DO 240 KFL=-6,6 | |
21066 | XPQ(KFL)=0D0 | |
21067 | 240 CONTINUE | |
21068 | ENDIF | |
21069 | ELSE | |
21070 | XPQ(1)=XPQ(1)+0.5D0*XPV | |
21071 | XPQ(-1)=XPQ(-1)+0.5D0*XPV | |
21072 | XPQ(2)=XPQ(2)+0.5D0*XPV | |
21073 | XPQ(-2)=XPQ(-2)+0.5D0*XPV | |
21074 | ENDIF | |
21075 | ||
21076 | C...Rescale for gammaVDM by effective gamma -> rho coupling. | |
21077 | IF(KFA.EQ.22.AND.MINT(109).EQ.2) THEN | |
21078 | DO 250 KFL=-6,6 | |
21079 | XPQ(KFL)=VINT(281)*XPQ(KFL) | |
21080 | 250 CONTINUE | |
21081 | VINT(232)=VINT(281)*XPV | |
21082 | ENDIF | |
21083 | ||
21084 | C...Isospin conjugation for neutron. | |
21085 | ELSEIF(KFA.EQ.2112) THEN | |
21086 | XPS=XPQ(1) | |
21087 | XPQ(1)=XPQ(2) | |
21088 | XPQ(2)=XPS | |
21089 | XPS=XPQ(-1) | |
21090 | XPQ(-1)=XPQ(-2) | |
21091 | XPQ(-2)=XPS | |
21092 | ||
21093 | C...Simple recipes for hyperon (average valence parton distribution). | |
21094 | ELSEIF(KFA.EQ.3122.OR.KFA.EQ.3112.OR.KFA.EQ.3212.OR.KFA.EQ.3222 | |
21095 | & .OR.KFA.EQ.3312.OR.KFA.EQ.3322.OR.KFA.EQ.3334) THEN | |
21096 | XPVAL=(XPQ(1)+XPQ(2)-XPQ(-1)-XPQ(-2))/3D0 | |
21097 | XPSEA=0.5D0*(XPQ(-1)+XPQ(-2)) | |
21098 | XPQ(1)=XPSEA | |
21099 | XPQ(2)=XPSEA | |
21100 | XPQ(-1)=XPSEA | |
21101 | XPQ(-2)=XPSEA | |
21102 | XPQ(KFA/1000)=XPQ(KFA/1000)+XPVAL | |
21103 | XPQ(MOD(KFA/100,10))=XPQ(MOD(KFA/100,10))+XPVAL | |
21104 | XPQ(MOD(KFA/10,10))=XPQ(MOD(KFA/10,10))+XPVAL | |
21105 | ENDIF | |
21106 | ||
21107 | C...Charge conjugation for antiparticle. | |
21108 | IF(KF.LT.0) THEN | |
21109 | DO 260 KFL=1,25 | |
21110 | IF(KFL.EQ.21.OR.KFL.EQ.22.OR.KFL.EQ.23.OR.KFL.EQ.25) GOTO 260 | |
21111 | XPS=XPQ(KFL) | |
21112 | XPQ(KFL)=XPQ(-KFL) | |
21113 | XPQ(-KFL)=XPS | |
21114 | 260 CONTINUE | |
21115 | ENDIF | |
21116 | ||
21117 | C...Allow gluon also in position 21. | |
21118 | XPQ(21)=XPQ(0) | |
21119 | ||
21120 | C...Check positivity and reset above maximum allowed flavour. | |
21121 | DO 270 KFL=-25,25 | |
21122 | XPQ(KFL)=MAX(0D0,XPQ(KFL)) | |
21123 | IF(IABS(KFL).GT.MSTP(58).AND.IABS(KFL).LE.8) XPQ(KFL)=0D0 | |
21124 | 270 CONTINUE | |
21125 | ||
21126 | C...Formats for error printouts. | |
21127 | 5000 FORMAT(' Error: x value outside physical range; x =',1P,D12.3) | |
21128 | 5100 FORMAT(' Error: illegal particle code for parton distribution;', | |
21129 | &' KF =',I5) | |
21130 | 5200 FORMAT(' Error: unknown parton distribution; KF, library, set =', | |
21131 | &3I5) | |
21132 | ||
21133 | RETURN | |
21134 | END | |
21135 | ||
21136 | C********************************************************************* | |
21137 | ||
21138 | C...PYPDFL | |
21139 | C...Gives proton parton distribution at small x and/or Q^2 according to | |
21140 | C...correct limiting behaviour. | |
21141 | ||
21142 | SUBROUTINE PYPDFL(KF,X,Q2,XPQ) | |
21143 | ||
21144 | C...Double precision and integer declarations. | |
21145 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
21146 | INTEGER PYK,PYCHGE,PYCOMP | |
21147 | C...Commonblocks. | |
21148 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
21149 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
21150 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
21151 | COMMON/PYINT1/MINT(400),VINT(400) | |
21152 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/ | |
21153 | C...Local arrays. | |
21154 | DIMENSION XPQ(-25:25),XPA(-25:25),XPB(-25:25),WTSB(-3:3) | |
21155 | DATA RMR/0.92D0/,RMP/0.38D0/,WTSB/0.5D0,1D0,1D0,5D0,1D0,1D0,0.5D0/ | |
21156 | ||
21157 | C...Send everything but protons/neutrons/VMD pions directly to PYPDFU. | |
21158 | MINT(92)=0 | |
21159 | KFA=IABS(KF) | |
21160 | IACC=0 | |
21161 | IF((KFA.EQ.2212.OR.KFA.EQ.2112).AND.MSTP(57).GE.2) IACC=1 | |
21162 | IF(KFA.EQ.211.AND.MSTP(57).GE.3) IACC=1 | |
21163 | IF(KFA.EQ.22.AND.MINT(109).EQ.2.AND.MSTP(57).GE.3) IACC=1 | |
21164 | IF(IACC.EQ.0) THEN | |
21165 | CALL PYPDFU(KF,X,Q2,XPQ) | |
21166 | RETURN | |
21167 | ENDIF | |
21168 | ||
21169 | C...Reset. Check x. | |
21170 | DO 100 KFL=-25,25 | |
21171 | XPQ(KFL)=0D0 | |
21172 | 100 CONTINUE | |
21173 | IF(X.LE.0D0.OR.X.GE.1D0) THEN | |
21174 | WRITE(MSTU(11),5000) X | |
21175 | RETURN | |
21176 | ENDIF | |
21177 | ||
21178 | C...Define valence content. | |
21179 | KFC=KF | |
21180 | NV1=2 | |
21181 | NV2=1 | |
21182 | IF(KF.EQ.2212) THEN | |
21183 | KFV1=2 | |
21184 | KFV2=1 | |
21185 | ELSEIF(KF.EQ.-2212) THEN | |
21186 | KFV1=-2 | |
21187 | KFV2=-1 | |
21188 | ELSEIF(KF.EQ.2112) THEN | |
21189 | KFV1=1 | |
21190 | KFV2=2 | |
21191 | ELSEIF(KF.EQ.-2112) THEN | |
21192 | KFV1=-1 | |
21193 | KFV2=-2 | |
21194 | ELSEIF(KF.EQ.211) THEN | |
21195 | NV1=1 | |
21196 | KFV1=2 | |
21197 | KFV2=-1 | |
21198 | ELSEIF(KF.EQ.-211) THEN | |
21199 | NV1=1 | |
21200 | KFV1=-2 | |
21201 | KFV2=1 | |
21202 | ELSEIF(MINT(105).LE.223) THEN | |
21203 | KFV1=1 | |
21204 | WTV1=0.2D0 | |
21205 | KFV2=2 | |
21206 | WTV2=0.8D0 | |
21207 | ELSEIF(MINT(105).EQ.333) THEN | |
21208 | KFV1=3 | |
21209 | WTV1=1.0D0 | |
21210 | KFV2=1 | |
21211 | WTV2=0.0D0 | |
21212 | ELSEIF(MINT(105).EQ.443) THEN | |
21213 | KFV1=4 | |
21214 | WTV1=1.0D0 | |
21215 | KFV2=1 | |
21216 | WTV2=0.0D0 | |
21217 | ENDIF | |
21218 | ||
21219 | C...Do naive evaluation and find min Q^2, boundary Q^2 and x_0. | |
21220 | CALL PYPDFU(KFC,X,Q2,XPA) | |
21221 | Q2MN=MAX(3D0,VINT(231)) | |
21222 | Q2B=2D0+0.052D0**2*EXP(3.56D0*SQRT(MAX(0D0,-LOG(3D0*X)))) | |
21223 | XMN=EXP(-(LOG((Q2MN-2D0)/0.052D0**2)/3.56D0)**2)/3D0 | |
21224 | ||
21225 | C...Large Q2 and large x: naive call is enough. | |
21226 | IF(Q2.GT.Q2MN.AND.Q2.GT.Q2B) THEN | |
21227 | DO 110 KFL=-25,25 | |
21228 | XPQ(KFL)=XPA(KFL) | |
21229 | 110 CONTINUE | |
21230 | MINT(92)=1 | |
21231 | ||
21232 | C...Small Q2 and large x: dampen boundary value. | |
21233 | ELSEIF(X.GT.XMN) THEN | |
21234 | ||
21235 | C...Evaluate at boundary and define dampening factors. | |
21236 | CALL PYPDFU(KFC,X,Q2MN,XPA) | |
21237 | FV=(Q2*(Q2MN+RMR)/(Q2MN*(Q2+RMR)))**(0.55D0*(1D0-X)/(1D0-XMN)) | |
21238 | FS=(Q2*(Q2MN+RMP)/(Q2MN*(Q2+RMP)))**1.08D0 | |
21239 | ||
21240 | C...Separate valence and sea parts of parton distribution. | |
21241 | IF(KFA.NE.22) THEN | |
21242 | XFV1=XPA(KFV1)-XPA(-KFV1) | |
21243 | XPA(KFV1)=XPA(-KFV1) | |
21244 | XFV2=XPA(KFV2)-XPA(-KFV2) | |
21245 | XPA(KFV2)=XPA(-KFV2) | |
21246 | ELSE | |
21247 | XPA(KFV1)=XPA(KFV1)-WTV1*VINT(232) | |
21248 | XPA(-KFV1)=XPA(-KFV1)-WTV1*VINT(232) | |
21249 | XPA(KFV2)=XPA(KFV2)-WTV2*VINT(232) | |
21250 | XPA(-KFV2)=XPA(-KFV2)-WTV2*VINT(232) | |
21251 | ENDIF | |
21252 | ||
21253 | C...Dampen valence and sea separately. Put back together. | |
21254 | DO 120 KFL=-25,25 | |
21255 | XPQ(KFL)=FS*XPA(KFL) | |
21256 | 120 CONTINUE | |
21257 | IF(KFA.NE.22) THEN | |
21258 | XPQ(KFV1)=XPQ(KFV1)+FV*XFV1 | |
21259 | XPQ(KFV2)=XPQ(KFV2)+FV*XFV2 | |
21260 | ELSE | |
21261 | XPQ(KFV1)=XPQ(KFV1)+FV*WTV1*VINT(232) | |
21262 | XPQ(-KFV1)=XPQ(-KFV1)+FV*WTV1*VINT(232) | |
21263 | XPQ(KFV2)=XPQ(KFV2)+FV*WTV2*VINT(232) | |
21264 | XPQ(-KFV2)=XPQ(-KFV2)+FV*WTV2*VINT(232) | |
21265 | ENDIF | |
21266 | MINT(92)=2 | |
21267 | ||
21268 | C...Large Q2 and small x: interpolate behaviour. | |
21269 | ELSEIF(Q2.GT.Q2MN) THEN | |
21270 | ||
21271 | C...Evaluate at extremes and define coefficients for interpolation. | |
21272 | CALL PYPDFU(KFC,XMN,Q2MN,XPA) | |
21273 | VI232A=VINT(232) | |
21274 | CALL PYPDFU(KFC,X,Q2B,XPB) | |
21275 | VI232B=VINT(232) | |
21276 | FLA=LOG(Q2B/Q2)/LOG(Q2B/Q2MN) | |
21277 | FVA=(X/XMN)**0.45D0*FLA | |
21278 | FSA=(X/XMN)**(-0.08D0)*FLA | |
21279 | FB=1D0-FLA | |
21280 | ||
21281 | C...Separate valence and sea parts of parton distribution. | |
21282 | IF(KFA.NE.22) THEN | |
21283 | XFVA1=XPA(KFV1)-XPA(-KFV1) | |
21284 | XPA(KFV1)=XPA(-KFV1) | |
21285 | XFVA2=XPA(KFV2)-XPA(-KFV2) | |
21286 | XPA(KFV2)=XPA(-KFV2) | |
21287 | XFVB1=XPB(KFV1)-XPB(-KFV1) | |
21288 | XPB(KFV1)=XPB(-KFV1) | |
21289 | XFVB2=XPB(KFV2)-XPB(-KFV2) | |
21290 | XPB(KFV2)=XPB(-KFV2) | |
21291 | ELSE | |
21292 | XPA(KFV1)=XPA(KFV1)-WTV1*VI232A | |
21293 | XPA(-KFV1)=XPA(-KFV1)-WTV1*VI232A | |
21294 | XPA(KFV2)=XPA(KFV2)-WTV2*VI232A | |
21295 | XPA(-KFV2)=XPA(-KFV2)-WTV2*VI232A | |
21296 | XPB(KFV1)=XPB(KFV1)-WTV1*VI232B | |
21297 | XPB(-KFV1)=XPB(-KFV1)-WTV1*VI232B | |
21298 | XPB(KFV2)=XPB(KFV2)-WTV2*VI232B | |
21299 | XPB(-KFV2)=XPB(-KFV2)-WTV2*VI232B | |
21300 | ENDIF | |
21301 | ||
21302 | C...Interpolate for valence and sea. Put back together. | |
21303 | DO 130 KFL=-25,25 | |
21304 | XPQ(KFL)=FSA*XPA(KFL)+FB*XPB(KFL) | |
21305 | 130 CONTINUE | |
21306 | IF(KFA.NE.22) THEN | |
21307 | XPQ(KFV1)=XPQ(KFV1)+(FVA*XFVA1+FB*XFVB1) | |
21308 | XPQ(KFV2)=XPQ(KFV2)+(FVA*XFVA2+FB*XFVB2) | |
21309 | ELSE | |
21310 | XPQ(KFV1)=XPQ(KFV1)+WTV1*(FVA*VI232A+FB*VI232B) | |
21311 | XPQ(-KFV1)=XPQ(-KFV1)+WTV1*(FVA*VI232A+FB*VI232B) | |
21312 | XPQ(KFV2)=XPQ(KFV2)+WTV2*(FVA*VI232A+FB*VI232B) | |
21313 | XPQ(-KFV2)=XPQ(-KFV2)+WTV2*(FVA*VI232A+FB*VI232B) | |
21314 | ENDIF | |
21315 | MINT(92)=3 | |
21316 | ||
21317 | C...Small Q2 and small x: dampen boundary value and add term. | |
21318 | ELSE | |
21319 | ||
21320 | C...Evaluate at boundary and define dampening factors. | |
21321 | CALL PYPDFU(KFC,XMN,Q2MN,XPA) | |
21322 | FB=(XMN-X)*(Q2MN-Q2)/(XMN*Q2MN) | |
21323 | FA=1D0-FB | |
21324 | FVC=(X/XMN)**0.45D0*(Q2/(Q2+RMR))**0.55D0 | |
21325 | FVA=FVC*FA*((Q2MN+RMR)/Q2MN)**0.55D0 | |
21326 | FVB=FVC*FB*1.10D0*XMN**0.45D0*0.11D0 | |
21327 | FSC=(X/XMN)**(-0.08D0)*(Q2/(Q2+RMP))**1.08D0 | |
21328 | FSA=FSC*FA*((Q2MN+RMP)/Q2MN)**1.08D0 | |
21329 | FSB=FSC*FB*0.21D0*XMN**(-0.08D0)*0.21D0 | |
21330 | ||
21331 | C...Separate valence and sea parts of parton distribution. | |
21332 | IF(KFA.NE.22) THEN | |
21333 | XFV1=XPA(KFV1)-XPA(-KFV1) | |
21334 | XPA(KFV1)=XPA(-KFV1) | |
21335 | XFV2=XPA(KFV2)-XPA(-KFV2) | |
21336 | XPA(KFV2)=XPA(-KFV2) | |
21337 | ELSE | |
21338 | XPA(KFV1)=XPA(KFV1)-WTV1*VINT(232) | |
21339 | XPA(-KFV1)=XPA(-KFV1)-WTV1*VINT(232) | |
21340 | XPA(KFV2)=XPA(KFV2)-WTV2*VINT(232) | |
21341 | XPA(-KFV2)=XPA(-KFV2)-WTV2*VINT(232) | |
21342 | ENDIF | |
21343 | ||
21344 | C...Dampen valence and sea separately. Add constant terms. | |
21345 | C...Put back together. | |
21346 | DO 140 KFL=-25,25 | |
21347 | XPQ(KFL)=FSA*XPA(KFL) | |
21348 | 140 CONTINUE | |
21349 | IF(KFA.NE.22) THEN | |
21350 | DO 150 KFL=-3,3 | |
21351 | XPQ(KFL)=XPQ(KFL)+FSB*WTSB(KFL) | |
21352 | 150 CONTINUE | |
21353 | XPQ(KFV1)=XPQ(KFV1)+(FVA*XFV1+FVB*NV1) | |
21354 | XPQ(KFV2)=XPQ(KFV2)+(FVA*XFV2+FVB*NV2) | |
21355 | ELSE | |
21356 | DO 160 KFL=-3,3 | |
21357 | XPQ(KFL)=XPQ(KFL)+VINT(281)*FSB*WTSB(KFL) | |
21358 | 160 CONTINUE | |
21359 | XPQ(KFV1)=XPQ(KFV1)+WTV1*(FVA*VINT(232)+FVB*VINT(281)) | |
21360 | XPQ(-KFV1)=XPQ(-KFV1)+WTV1*(FVA*VINT(232)+FVB*VINT(281)) | |
21361 | XPQ(KFV2)=XPQ(KFV2)+WTV2*(FVA*VINT(232)+FVB*VINT(281)) | |
21362 | XPQ(-KFV2)=XPQ(-KFV2)+WTV2*(FVA*VINT(232)+FVB*VINT(281)) | |
21363 | ENDIF | |
21364 | XPQ(21)=XPQ(0) | |
21365 | MINT(92)=4 | |
21366 | ENDIF | |
21367 | ||
21368 | C...Format for error printout. | |
21369 | 5000 FORMAT(' Error: x value outside physical range; x =',1P,D12.3) | |
21370 | ||
21371 | RETURN | |
21372 | END | |
21373 | ||
21374 | C********************************************************************* | |
21375 | ||
21376 | C...PYPDEL | |
21377 | C...Gives electron parton distribution. | |
21378 | ||
21379 | SUBROUTINE PYPDEL(X,Q2,XPEL) | |
21380 | ||
21381 | C...Double precision and integer declarations. | |
21382 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
21383 | INTEGER PYK,PYCHGE,PYCOMP | |
21384 | C...Commonblocks. | |
21385 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
21386 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
21387 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
21388 | COMMON/PYINT1/MINT(400),VINT(400) | |
21389 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/ | |
21390 | C...Local arrays. | |
21391 | DIMENSION XPEL(-25:25),XPGA(-6:6),SXP(0:6) | |
21392 | ||
21393 | C...Interface to PDFLIB. | |
21394 | COMMON/W50513/XMIN,XMAX,Q2MIN,Q2MAX | |
21395 | SAVE /W50513/ | |
21396 | DOUBLE PRECISION XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GLU, | |
21397 | &VALUE(20),XMIN,XMAX,Q2MIN,Q2MAX | |
21398 | CHARACTER*20 PARM(20) | |
21399 | DATA VALUE/20*0D0/,PARM/20*' '/ | |
21400 | ||
21401 | C...Some common constants. | |
21402 | DO 100 KFL=-25,25 | |
21403 | XPEL(KFL)=0D0 | |
21404 | 100 CONTINUE | |
21405 | AEM=PARU(101) | |
21406 | PME=PMAS(11,1) | |
21407 | XL=LOG(MAX(1D-10,X)) | |
21408 | X1L=LOG(MAX(1D-10,1D0-X)) | |
21409 | HLE=LOG(MAX(3D0,Q2/PME**2)) | |
21410 | HBE2=(AEM/PARU(1))*(HLE-1D0) | |
21411 | ||
21412 | C...Electron inside electron, see R. Kleiss et al., in Z physics at | |
21413 | C...LEP 1, CERN 89-08, p. 34 | |
21414 | IF(MSTP(59).LE.1) THEN | |
21415 | HDE=1D0+(AEM/PARU(1))*(1.5D0*HLE+1.289868D0)+(AEM/PARU(1))**2* | |
21416 | & (-2.164868D0*HLE**2+9.840808D0*HLE-10.130464D0) | |
21417 | HEE=HBE2*(1D0-X)**(HBE2-1D0)*SQRT(MAX(0D0,HDE))- | |
21418 | & 0.5D0*HBE2*(1D0+X)+HBE2**2/8D0*((1D0+X)*(-4D0*X1L+3D0*XL)- | |
21419 | & 4D0*XL/(1D0-X)-5D0-X) | |
21420 | ELSE | |
21421 | HEE=HBE2*(1D0-X)**(HBE2-1D0)*EXP(0.172784D0*HBE2)/ | |
21422 | & PYGAMM(1D0+HBE2)-0.5D0*HBE2*(1D0+X)+HBE2**2/8D0*((1D0+X)* | |
21423 | & (-4D0*X1L+3D0*XL)-4D0*XL/(1D0-X)-5D0-X) | |
21424 | ENDIF | |
21425 | IF(X.GT.0.9999D0.AND.X.LE.0.999999D0) THEN | |
21426 | HEE=HEE*100D0**HBE2/(100D0**HBE2-1D0) | |
21427 | ELSEIF(X.GT.0.999999D0) THEN | |
21428 | HEE=0D0 | |
21429 | ENDIF | |
21430 | XPEL(11)=X*HEE | |
21431 | ||
21432 | C...Photon and (transverse) W- inside electron. | |
21433 | AEMP=PYALEM(PME*SQRT(MAX(0D0,Q2)))/PARU(2) | |
21434 | IF(MSTP(13).LE.1) THEN | |
21435 | HLG=HLE | |
21436 | ELSE | |
21437 | HLG=LOG(MAX(1D0,(PARP(13)/PME**2)*(1D0-X)/X**2)) | |
21438 | ENDIF | |
21439 | XPEL(22)=AEMP*HLG*(1D0+(1D0-X)**2) | |
21440 | HLW=LOG(1D0+Q2/PMAS(24,1)**2)/(4D0*PARU(102)) | |
21441 | XPEL(-24)=AEMP*HLW*(1D0+(1D0-X)**2) | |
21442 | ||
21443 | C...Electron or positron inside photon inside electron. | |
21444 | IF(MSTP(12).EQ.1) THEN | |
21445 | XFSEA=0.5D0*(AEMP*(HLE-1D0))**2*(4D0/3D0+X-X**2-4D0*X**3/3D0+ | |
21446 | & 2D0*X*(1D0+X)*XL) | |
21447 | XPEL(11)=XPEL(11)+XFSEA | |
21448 | XPEL(-11)=XFSEA | |
21449 | ||
21450 | C...Initialize PDFLIB photon parton distributions. | |
21451 | IF(MSTP(56).EQ.2) THEN | |
21452 | PARM(1)='NPTYPE' | |
21453 | VALUE(1)=3 | |
21454 | PARM(2)='NGROUP' | |
21455 | VALUE(2)=MSTP(55)/1000 | |
21456 | PARM(3)='NSET' | |
21457 | VALUE(3)=MOD(MSTP(55),1000) | |
21458 | IF(MINT(93).NE.3000000+MSTP(55)) THEN | |
21459 | CALL PDFSET(PARM,VALUE) | |
21460 | MINT(93)=3000000+MSTP(55) | |
21461 | ENDIF | |
21462 | ENDIF | |
21463 | ||
21464 | C...Quarks and gluons inside photon inside electron: | |
21465 | C...numerical convolution required. | |
21466 | DO 110 KFL=0,6 | |
21467 | SXP(KFL)=0D0 | |
21468 | 110 CONTINUE | |
21469 | SUMXPP=0D0 | |
21470 | ITER=-1 | |
21471 | 120 ITER=ITER+1 | |
21472 | SUMXP=SUMXPP | |
21473 | NSTP=2**(ITER-1) | |
21474 | IF(ITER.EQ.0) NSTP=2 | |
21475 | DO 130 KFL=0,6 | |
21476 | SXP(KFL)=0.5D0*SXP(KFL) | |
21477 | 130 CONTINUE | |
21478 | WTSTP=0.5D0/NSTP | |
21479 | IF(ITER.EQ.0) WTSTP=0.5D0 | |
21480 | C...Pick grid of x_{gamma} values logarithmically even. | |
21481 | DO 150 ISTP=1,NSTP | |
21482 | IF(ITER.EQ.0) THEN | |
21483 | XLE=XL*(ISTP-1) | |
21484 | ELSE | |
21485 | XLE=XL*(ISTP-0.5D0)/NSTP | |
21486 | ENDIF | |
21487 | XE=MIN(0.999999D0,EXP(XLE)) | |
21488 | XG=MIN(0.999999D0,X/XE) | |
21489 | C...Evaluate photon inside electron parton distribution for convolution. | |
21490 | XPGP=1D0+(1D0-XE)**2 | |
21491 | IF(MSTP(13).LE.1) THEN | |
21492 | XPGP=XPGP*HLE | |
21493 | ELSE | |
21494 | XPGP=XPGP*LOG(MAX(1D0,(PARP(13)/PME**2)*(1D0-XE)/XE**2)) | |
21495 | ENDIF | |
21496 | C...Evaluate photon parton distributions for convolution. | |
21497 | IF(MSTP(56).EQ.1) THEN | |
21498 | CALL PYPDGA(XG,Q2,XPGA) | |
21499 | DO 140 KFL=0,5 | |
21500 | SXP(KFL)=SXP(KFL)+WTSTP*XPGP*XPGA(KFL) | |
21501 | 140 CONTINUE | |
21502 | ELSEIF(MSTP(56).EQ.2) THEN | |
21503 | C...Call PDFLIB parton distributions. | |
21504 | XX=XG | |
21505 | QQ=SQRT(MAX(0D0,Q2MIN,Q2)) | |
21506 | IF(MSTP(57).EQ.0) QQ=SQRT(Q2MIN) | |
21507 | CALL STRUCTM(XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GLU) | |
21508 | SXP(0)=SXP(0)+WTSTP*XPGP*GLU | |
21509 | SXP(1)=SXP(1)+WTSTP*XPGP*DNV | |
21510 | SXP(2)=SXP(2)+WTSTP*XPGP*UPV | |
21511 | SXP(3)=SXP(3)+WTSTP*XPGP*STR | |
21512 | SXP(4)=SXP(4)+WTSTP*XPGP*CHM | |
21513 | SXP(5)=SXP(5)+WTSTP*XPGP*BOT | |
21514 | SXP(6)=SXP(6)+WTSTP*XPGP*TOP | |
21515 | ENDIF | |
21516 | 150 CONTINUE | |
21517 | SUMXPP=SXP(0)+2D0*SXP(1)+2D0*SXP(2) | |
21518 | IF(ITER.LE.2.OR.(ITER.LE.7.AND.ABS(SUMXPP-SUMXP).GT. | |
21519 | & PARP(14)*(SUMXPP+SUMXP))) GOTO 120 | |
21520 | ||
21521 | C...Put convolution into output arrays. | |
21522 | FCONV=AEMP*(-XL) | |
21523 | XPEL(0)=FCONV*SXP(0) | |
21524 | DO 160 KFL=1,6 | |
21525 | XPEL(KFL)=FCONV*SXP(KFL) | |
21526 | XPEL(-KFL)=XPEL(KFL) | |
21527 | 160 CONTINUE | |
21528 | ENDIF | |
21529 | ||
21530 | RETURN | |
21531 | END | |
21532 | ||
21533 | C********************************************************************* | |
21534 | ||
21535 | C...PYPDGA | |
21536 | C...Gives photon parton distribution. | |
21537 | ||
21538 | SUBROUTINE PYPDGA(X,Q2,XPGA) | |
21539 | ||
21540 | C...Double precision and integer declarations. | |
21541 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
21542 | INTEGER PYK,PYCHGE,PYCOMP | |
21543 | C...Commonblocks. | |
21544 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
21545 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
21546 | COMMON/PYINT1/MINT(400),VINT(400) | |
21547 | SAVE /PYDAT1/,/PYPARS/,/PYINT1/ | |
21548 | C...Local arrays. | |
21549 | DIMENSION XPGA(-6:6),DGAG(4,3),DGBG(4,3),DGCG(4,3),DGAN(4,3), | |
21550 | &DGBN(4,3),DGCN(4,3),DGDN(4,3),DGEN(4,3),DGAS(4,3),DGBS(4,3), | |
21551 | &DGCS(4,3),DGDS(4,3),DGES(4,3) | |
21552 | ||
21553 | C...The following data lines are coefficients needed in the | |
21554 | C...Drees and Grassie photon parton distribution parametrization. | |
21555 | DATA DGAG/-.207D0,.6158D0,1.074D0,0.D0,.8926D-2,.6594D0, | |
21556 | &.4766D0,.1975D-1,.03197D0,1.018D0,.2461D0,.2707D-1/ | |
21557 | DATA DGBG/-.1987D0,.6257D0,8.352D0,5.024D0,.5085D-1,.2774D0, | |
21558 | &-.3906D0,-.3212D0,-.618D-2,.9476D0,-.6094D0,-.1067D-1/ | |
21559 | DATA DGCG/5.119D0,-.2752D0,-6.993D0,2.298D0,-.2313D0,.1382D0, | |
21560 | &6.542D0,.5162D0,-.1216D0,.9047D0,2.653D0,.2003D-2/ | |
21561 | DATA DGAN/2.285D0,-.1526D-1,1330.D0,4.219D0,-.3711D0,1.061D0, | |
21562 | &4.758D0,-.1503D-1,15.8D0,-.9464D0,-.5D0,-.2118D0/ | |
21563 | DATA DGBN/6.073D0,-.8132D0,-41.31D0,3.165D0,-.1717D0,.7815D0, | |
21564 | &1.535D0,.7067D-2,2.742D0,-.7332D0,.7148D0,3.287D0/ | |
21565 | DATA DGCN/-.4202D0,.1778D-1,.9216D0,.18D0,.8766D-1,.2197D-1, | |
21566 | &.1096D0,.204D0,.2917D-1,.4657D-1,.1785D0,.4811D-1/ | |
21567 | DATA DGDN/-.8083D-1,.6346D0,1.208D0,.203D0,-.8915D0,.2857D0, | |
21568 | &2.973D0,.1185D0,-.342D-1,.7196D0,.7338D0,.8139D-1/ | |
21569 | DATA DGEN/.5526D-1,1.136D0,.9512D0,.1163D-1,-.1816D0,.5866D0, | |
21570 | &2.421D0,.4059D0,-.2302D-1,.9229D0,.5873D0,-.79D-4/ | |
21571 | DATA DGAS/16.69D0,-.7916D0,1099.D0,4.428D0,-.1207D0,1.071D0, | |
21572 | &1.977D0,-.8625D-2,6.734D0,-1.008D0,-.8594D-1,.7625D-1/ | |
21573 | DATA DGBS/.176D0,.4794D-1,1.047D0,.25D-1,25.D0,-1.648D0, | |
21574 | &-.1563D-1,6.438D0,59.88D0,-2.983D0,4.48D0,.9686D0/ | |
21575 | DATA DGCS/-.208D-1,.3386D-2,4.853D0,.8404D0,-.123D-1,1.162D0, | |
21576 | &.4824D0,-.11D-1,-.3226D-2,.8432D0,.3616D0,.1383D-2/ | |
21577 | DATA DGDS/-.1685D-1,1.353D0,1.426D0,1.239D0,-.9194D-1,.7912D0, | |
21578 | &.6397D0,2.327D0,-.3321D-1,.9475D0,-.3198D0,.2132D-1/ | |
21579 | DATA DGES/-.1986D0,1.1D0,1.136D0,-.2779D0,.2015D-1,.9869D0, | |
21580 | &-.7036D-1,.1694D-1,.1059D0,.6954D0,-.6663D0,.3683D0/ | |
21581 | ||
21582 | C...Photon parton distribution from Drees and Grassie. | |
21583 | C...Allowed variable range: 1 GeV^2 < Q^2 < 10000 GeV^2. | |
21584 | DO 100 KFL=-6,6 | |
21585 | XPGA(KFL)=0D0 | |
21586 | 100 CONTINUE | |
21587 | VINT(231)=1D0 | |
21588 | IF(MSTP(57).LE.0) THEN | |
21589 | T=LOG(1D0/0.16D0) | |
21590 | ELSE | |
21591 | T=LOG(MIN(1D4,MAX(1D0,Q2))/0.16D0) | |
21592 | ENDIF | |
21593 | X1=1D0-X | |
21594 | NF=3 | |
21595 | IF(Q2.GT.25D0) NF=4 | |
21596 | IF(Q2.GT.300D0) NF=5 | |
21597 | NFE=NF-2 | |
21598 | AEM=PARU(101) | |
21599 | ||
21600 | C...Evaluate gluon content. | |
21601 | DGA=DGAG(1,NFE)*T**DGAG(2,NFE)+DGAG(3,NFE)*T**(-DGAG(4,NFE)) | |
21602 | DGB=DGBG(1,NFE)*T**DGBG(2,NFE)+DGBG(3,NFE)*T**(-DGBG(4,NFE)) | |
21603 | DGC=DGCG(1,NFE)*T**DGCG(2,NFE)+DGCG(3,NFE)*T**(-DGCG(4,NFE)) | |
21604 | XPGL=DGA*X**DGB*X1**DGC | |
21605 | ||
21606 | C...Evaluate up- and down-type quark content. | |
21607 | DGA=DGAN(1,NFE)*T**DGAN(2,NFE)+DGAN(3,NFE)*T**(-DGAN(4,NFE)) | |
21608 | DGB=DGBN(1,NFE)*T**DGBN(2,NFE)+DGBN(3,NFE)*T**(-DGBN(4,NFE)) | |
21609 | DGC=DGCN(1,NFE)*T**DGCN(2,NFE)+DGCN(3,NFE)*T**(-DGCN(4,NFE)) | |
21610 | DGD=DGDN(1,NFE)*T**DGDN(2,NFE)+DGDN(3,NFE)*T**(-DGDN(4,NFE)) | |
21611 | DGE=DGEN(1,NFE)*T**DGEN(2,NFE)+DGEN(3,NFE)*T**(-DGEN(4,NFE)) | |
21612 | XPQN=X*(X**2+X1**2)/(DGA-DGB*LOG(X1))+DGC*X**DGD*X1**DGE | |
21613 | DGA=DGAS(1,NFE)*T**DGAS(2,NFE)+DGAS(3,NFE)*T**(-DGAS(4,NFE)) | |
21614 | DGB=DGBS(1,NFE)*T**DGBS(2,NFE)+DGBS(3,NFE)*T**(-DGBS(4,NFE)) | |
21615 | DGC=DGCS(1,NFE)*T**DGCS(2,NFE)+DGCS(3,NFE)*T**(-DGCS(4,NFE)) | |
21616 | DGD=DGDS(1,NFE)*T**DGDS(2,NFE)+DGDS(3,NFE)*T**(-DGDS(4,NFE)) | |
21617 | DGE=DGES(1,NFE)*T**DGES(2,NFE)+DGES(3,NFE)*T**(-DGES(4,NFE)) | |
21618 | DGF=9D0 | |
21619 | IF(NF.EQ.4) DGF=10D0 | |
21620 | IF(NF.EQ.5) DGF=55D0/6D0 | |
21621 | XPQS=DGF*X*(X**2+X1**2)/(DGA-DGB*LOG(X1))+DGC*X**DGD*X1**DGE | |
21622 | IF(NF.LE.3) THEN | |
21623 | XPQU=(XPQS+9D0*XPQN)/6D0 | |
21624 | XPQD=(XPQS-4.5D0*XPQN)/6D0 | |
21625 | ELSEIF(NF.EQ.4) THEN | |
21626 | XPQU=(XPQS+6D0*XPQN)/8D0 | |
21627 | XPQD=(XPQS-6D0*XPQN)/8D0 | |
21628 | ELSE | |
21629 | XPQU=(XPQS+7.5D0*XPQN)/10D0 | |
21630 | XPQD=(XPQS-5D0*XPQN)/10D0 | |
21631 | ENDIF | |
21632 | ||
21633 | C...Put into output arrays. | |
21634 | XPGA(0)=AEM*XPGL | |
21635 | XPGA(1)=AEM*XPQD | |
21636 | XPGA(2)=AEM*XPQU | |
21637 | XPGA(3)=AEM*XPQD | |
21638 | IF(NF.GE.4) XPGA(4)=AEM*XPQU | |
21639 | IF(NF.GE.5) XPGA(5)=AEM*XPQD | |
21640 | DO 110 KFL=1,6 | |
21641 | XPGA(-KFL)=XPGA(KFL) | |
21642 | 110 CONTINUE | |
21643 | ||
21644 | RETURN | |
21645 | END | |
21646 | ||
21647 | C********************************************************************* | |
21648 | ||
21649 | C...PYGGAM | |
21650 | C...Constructs the F2 and parton distributions of the photon | |
21651 | C...by summing homogeneous (VMD) and inhomogeneous (anomalous) terms. | |
21652 | C...For F2, c and b are included by the Bethe-Heitler formula; | |
21653 | C...in the 'MSbar' scheme additionally a Cgamma term is added. | |
21654 | C...Contains the SaS sets 1D, 1M, 2D and 2M. | |
21655 | C...Adapted from SaSgam library, authors G.A. Schuler and T. Sjostrand. | |
21656 | ||
21657 | SUBROUTINE PYGGAM(ISET,X,Q2,P2,IP2,F2GM,XPDFGM) | |
21658 | ||
21659 | C...Double precision and integer declarations. | |
21660 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
21661 | INTEGER PYK,PYCHGE,PYCOMP | |
21662 | C...Commonblocks. | |
21663 | COMMON/PYINT8/XPVMD(-6:6),XPANL(-6:6),XPANH(-6:6),XPBEH(-6:6), | |
21664 | &XPDIR(-6:6) | |
21665 | COMMON/PYINT9/VXPVMD(-6:6),VXPANL(-6:6),VXPANH(-6:6),VXPDGM(-6:6) | |
21666 | SAVE /PYINT8/,/PYINT9/ | |
21667 | C...Local arrays. | |
21668 | DIMENSION XPDFGM(-6:6),XPGA(-6:6), VXPGA(-6:6) | |
21669 | C...Charm and bottom masses (low to compensate for J/psi etc.). | |
21670 | DATA PMC/1.3D0/, PMB/4.6D0/ | |
21671 | C...alpha_em and alpha_em/(2*pi). | |
21672 | DATA AEM/0.007297D0/, AEM2PI/0.0011614D0/ | |
21673 | C...Lambda value for 4 flavours. | |
21674 | DATA ALAM/0.20D0/ | |
21675 | C...Mixture u/(u+d), = 0.5 for incoherent and = 0.8 for coherent sum. | |
21676 | DATA FRACU/0.8D0/ | |
21677 | C...VMD couplings f_V**2/(4*pi). | |
21678 | DATA FRHO/2.20D0/, FOMEGA/23.6D0/, FPHI/18.4D0/ | |
21679 | C...Masses for rho (=omega) and phi. | |
21680 | DATA PMRHO/0.770D0/, PMPHI/1.020D0/ | |
21681 | C...Number of points in integration for IP2=1. | |
21682 | DATA NSTEP/100/ | |
21683 | ||
21684 | C...Reset output. | |
21685 | F2GM=0D0 | |
21686 | DO 100 KFL=-6,6 | |
21687 | XPDFGM(KFL)=0D0 | |
21688 | XPVMD(KFL)=0D0 | |
21689 | XPANL(KFL)=0D0 | |
21690 | XPANH(KFL)=0D0 | |
21691 | XPBEH(KFL)=0D0 | |
21692 | XPDIR(KFL)=0D0 | |
21693 | VXPVMD(KFL)=0D0 | |
21694 | VXPANL(KFL)=0D0 | |
21695 | VXPANH(KFL)=0D0 | |
21696 | VXPDGM(KFL)=0D0 | |
21697 | 100 CONTINUE | |
21698 | ||
21699 | C...Set Q0 cut-off parameter as function of set used. | |
21700 | IF(ISET.LE.2) THEN | |
21701 | Q0=0.6D0 | |
21702 | ELSE | |
21703 | Q0=2D0 | |
21704 | ENDIF | |
21705 | Q02=Q0**2 | |
21706 | ||
21707 | C...Scale choice for off-shell photon; common factors. | |
21708 | Q2A=Q2 | |
21709 | FACNOR=1D0 | |
21710 | IF(IP2.EQ.1) THEN | |
21711 | P2MX=P2+Q02 | |
21712 | Q2A=Q2+P2*Q02/MAX(Q02,Q2) | |
21713 | FACNOR=LOG(Q2/Q02)/NSTEP | |
21714 | ELSEIF(IP2.EQ.2) THEN | |
21715 | P2MX=MAX(P2,Q02) | |
21716 | ELSEIF(IP2.EQ.3) THEN | |
21717 | P2MX=P2+Q02 | |
21718 | Q2A=Q2+P2*Q02/MAX(Q02,Q2) | |
21719 | ELSEIF(IP2.EQ.4) THEN | |
21720 | P2MX=Q2*(Q02+P2)/(Q2+P2)*EXP(P2*(Q2-Q02)/ | |
21721 | & ((Q2+P2)*(Q02+P2))) | |
21722 | ELSEIF(IP2.EQ.5) THEN | |
21723 | P2MXA=Q2*(Q02+P2)/(Q2+P2)*EXP(P2*(Q2-Q02)/ | |
21724 | & ((Q2+P2)*(Q02+P2))) | |
21725 | P2MX=Q0*SQRT(P2MXA) | |
21726 | FACNOR=LOG(Q2/P2MXA)/LOG(Q2/P2MX) | |
21727 | ELSEIF(IP2.EQ.6) THEN | |
21728 | P2MX=Q2*(Q02+P2)/(Q2+P2)*EXP(P2*(Q2-Q02)/ | |
21729 | & ((Q2+P2)*(Q02+P2))) | |
21730 | P2MX=MAX(0D0,1D0-P2/Q2)*P2MX+MIN(1D0,P2/Q2)*MAX(P2,Q02) | |
21731 | ELSE | |
21732 | P2MXA=Q2*(Q02+P2)/(Q2+P2)*EXP(P2*(Q2-Q02)/ | |
21733 | & ((Q2+P2)*(Q02+P2))) | |
21734 | P2MX=Q0*SQRT(P2MXA) | |
21735 | P2MXB=P2MX | |
21736 | P2MX=MAX(0D0,1D0-P2/Q2)*P2MX+MIN(1D0,P2/Q2)*MAX(P2,Q02) | |
21737 | P2MXB=MAX(0D0,1D0-P2/Q2)*P2MXB+MIN(1D0,P2/Q2)*P2MXA | |
21738 | FACNOR=LOG(Q2/P2MXA)/LOG(Q2/P2MXB) | |
21739 | ENDIF | |
21740 | ||
21741 | C...Call VMD parametrization for d quark and use to give rho, omega, | |
21742 | C...phi. Note dipole dampening for off-shell photon. | |
21743 | CALL PYGVMD(ISET,1,X,Q2A,P2MX,ALAM,XPGA,VXPGA) | |
21744 | XFVAL=VXPGA(1) | |
21745 | XPGA(1)=XPGA(2) | |
21746 | XPGA(-1)=XPGA(-2) | |
21747 | FACUD=AEM*(1D0/FRHO+1D0/FOMEGA)*(PMRHO**2/(PMRHO**2+P2))**2 | |
21748 | FACS=AEM*(1D0/FPHI)*(PMPHI**2/(PMPHI**2+P2))**2 | |
21749 | DO 110 KFL=-5,5 | |
21750 | XPVMD(KFL)=(FACUD+FACS)*XPGA(KFL) | |
21751 | 110 CONTINUE | |
21752 | XPVMD(1)=XPVMD(1)+(1D0-FRACU)*FACUD*XFVAL | |
21753 | XPVMD(2)=XPVMD(2)+FRACU*FACUD*XFVAL | |
21754 | XPVMD(3)=XPVMD(3)+FACS*XFVAL | |
21755 | XPVMD(-1)=XPVMD(-1)+(1D0-FRACU)*FACUD*XFVAL | |
21756 | XPVMD(-2)=XPVMD(-2)+FRACU*FACUD*XFVAL | |
21757 | XPVMD(-3)=XPVMD(-3)+FACS*XFVAL | |
21758 | VXPVMD(1)=(1D0-FRACU)*FACUD*XFVAL | |
21759 | VXPVMD(2)=FRACU*FACUD*XFVAL | |
21760 | VXPVMD(3)=FACS*XFVAL | |
21761 | VXPVMD(-1)=(1D0-FRACU)*FACUD*XFVAL | |
21762 | VXPVMD(-2)=FRACU*FACUD*XFVAL | |
21763 | VXPVMD(-3)=FACS*XFVAL | |
21764 | ||
21765 | IF(IP2.NE.1) THEN | |
21766 | C...Anomalous parametrizations for different strategies | |
21767 | C...for off-shell photons; except full integration. | |
21768 | ||
21769 | C...Call anomalous parametrization for d + u + s. | |
21770 | CALL PYGANO(-3,X,Q2A,P2MX,ALAM,XPGA,VXPGA) | |
21771 | DO 120 KFL=-5,5 | |
21772 | XPANL(KFL)=FACNOR*XPGA(KFL) | |
21773 | VXPANL(KFL)=FACNOR*VXPGA(KFL) | |
21774 | 120 CONTINUE | |
21775 | ||
21776 | C...Call anomalous parametrization for c and b. | |
21777 | CALL PYGANO(4,X,Q2A,P2MX,ALAM,XPGA,VXPGA) | |
21778 | DO 130 KFL=-5,5 | |
21779 | XPANH(KFL)=FACNOR*XPGA(KFL) | |
21780 | VXPANH(KFL)=FACNOR*VXPGA(KFL) | |
21781 | 130 CONTINUE | |
21782 | CALL PYGANO(5,X,Q2A,P2MX,ALAM,XPGA,VXPGA) | |
21783 | DO 140 KFL=-5,5 | |
21784 | XPANH(KFL)=XPANH(KFL)+FACNOR*XPGA(KFL) | |
21785 | VXPANH(KFL)=VXPANH(KFL)+FACNOR*VXPGA(KFL) | |
21786 | 140 CONTINUE | |
21787 | ||
21788 | ELSE | |
21789 | C...Special option: loop over flavours and integrate over k2. | |
21790 | DO 170 KF=1,5 | |
21791 | DO 160 ISTEP=1,NSTEP | |
21792 | Q2STEP=Q02*(Q2/Q02)**((ISTEP-0.5D0)/NSTEP) | |
21793 | IF((KF.EQ.4.AND.Q2STEP.LT.PMC**2).OR. | |
21794 | & (KF.EQ.5.AND.Q2STEP.LT.PMB**2)) GOTO 160 | |
21795 | CALL PYGVMD(0,KF,X,Q2,Q2STEP,ALAM,XPGA,VXPGA) | |
21796 | FACQ=AEM2PI*(Q2STEP/(Q2STEP+P2))**2*FACNOR | |
21797 | IF(MOD(KF,2).EQ.0) FACQ=FACQ*(8D0/9D0) | |
21798 | IF(MOD(KF,2).EQ.1) FACQ=FACQ*(2D0/9D0) | |
21799 | DO 150 KFL=-5,5 | |
21800 | IF(KF.LE.3) XPANL(KFL)=XPANL(KFL)+FACQ*XPGA(KFL) | |
21801 | IF(KF.GE.4) XPANH(KFL)=XPANH(KFL)+FACQ*XPGA(KFL) | |
21802 | IF(KF.LE.3) VXPANL(KFL)=VXPANL(KFL)+FACQ*VXPGA(KFL) | |
21803 | IF(KF.GE.4) VXPANH(KFL)=VXPANH(KFL)+FACQ*VXPGA(KFL) | |
21804 | 150 CONTINUE | |
21805 | 160 CONTINUE | |
21806 | 170 CONTINUE | |
21807 | ENDIF | |
21808 | ||
21809 | C...Call Bethe-Heitler term expression for charm and bottom. | |
21810 | CALL PYGBEH(4,X,Q2,P2,PMC**2,XPBH) | |
21811 | XPBEH(4)=XPBH | |
21812 | XPBEH(-4)=XPBH | |
21813 | CALL PYGBEH(5,X,Q2,P2,PMB**2,XPBH) | |
21814 | XPBEH(5)=XPBH | |
21815 | XPBEH(-5)=XPBH | |
21816 | ||
21817 | C...For MSbar subtraction call C^gamma term expression for d, u, s. | |
21818 | IF(ISET.EQ.2.OR.ISET.EQ.4) THEN | |
21819 | CALL PYGDIR(X,Q2,P2,Q02,XPGA) | |
21820 | DO 180 KFL=-5,5 | |
21821 | XPDIR(KFL)=XPGA(KFL) | |
21822 | 180 CONTINUE | |
21823 | ENDIF | |
21824 | ||
21825 | C...Store result in output array. | |
21826 | DO 190 KFL=-5,5 | |
21827 | CHSQ=1D0/9D0 | |
21828 | IF(IABS(KFL).EQ.2.OR.IABS(KFL).EQ.4) CHSQ=4D0/9D0 | |
21829 | XPF2=XPVMD(KFL)+XPANL(KFL)+XPBEH(KFL)+XPDIR(KFL) | |
21830 | IF(KFL.NE.0) F2GM=F2GM+CHSQ*XPF2 | |
21831 | XPDFGM(KFL)=XPVMD(KFL)+XPANL(KFL)+XPANH(KFL) | |
21832 | VXPDGM(KFL)=VXPVMD(KFL)+VXPANL(KFL)+VXPANH(KFL) | |
21833 | 190 CONTINUE | |
21834 | ||
21835 | RETURN | |
21836 | END | |
21837 | ||
21838 | C********************************************************************* | |
21839 | ||
21840 | C...PYGVMD | |
21841 | C...Evaluates the VMD parton distributions of a photon, | |
21842 | C...evolved homogeneously from an initial scale P2 to Q2. | |
21843 | C...Does not include dipole suppression factor. | |
21844 | C...ISET is parton distribution set, see above; | |
21845 | C...additionally ISET=0 is used for the evolution of an anomalous photon | |
21846 | C...which branched at a scale P2 and then evolved homogeneously to Q2. | |
21847 | C...ALAM is the 4-flavour Lambda, which is automatically converted | |
21848 | C...to 3- and 5-flavour equivalents as needed. | |
21849 | C...Adapted from SaSgam library, authors G.A. Schuler and T. Sjostrand. | |
21850 | ||
21851 | SUBROUTINE PYGVMD(ISET,KF,X,Q2,P2,ALAM,XPGA,VXPGA) | |
21852 | ||
21853 | C...Double precision and integer declarations. | |
21854 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
21855 | INTEGER PYK,PYCHGE,PYCOMP | |
21856 | C...Local arrays and data. | |
21857 | DIMENSION XPGA(-6:6), VXPGA(-6:6) | |
21858 | DATA PMC/1.3D0/, PMB/4.6D0/, AEM/0.007297D0/, AEM2PI/0.0011614D0/ | |
21859 | ||
21860 | C...Reset output. | |
21861 | DO 100 KFL=-6,6 | |
21862 | XPGA(KFL)=0D0 | |
21863 | VXPGA(KFL)=0D0 | |
21864 | 100 CONTINUE | |
21865 | KFA=IABS(KF) | |
21866 | ||
21867 | C...Calculate Lambda; protect against unphysical Q2 and P2 input. | |
21868 | ALAM3=ALAM*(PMC/ALAM)**(2D0/27D0) | |
21869 | ALAM5=ALAM*(ALAM/PMB)**(2D0/23D0) | |
21870 | P2EFF=MAX(P2,1.2D0*ALAM3**2) | |
21871 | IF(KFA.EQ.4) P2EFF=MAX(P2EFF,PMC**2) | |
21872 | IF(KFA.EQ.5) P2EFF=MAX(P2EFF,PMB**2) | |
21873 | Q2EFF=MAX(Q2,P2EFF) | |
21874 | ||
21875 | C...Find number of flavours at lower and upper scale. | |
21876 | NFP=4 | |
21877 | IF(P2EFF.LT.PMC**2) NFP=3 | |
21878 | IF(P2EFF.GT.PMB**2) NFP=5 | |
21879 | NFQ=4 | |
21880 | IF(Q2EFF.LT.PMC**2) NFQ=3 | |
21881 | IF(Q2EFF.GT.PMB**2) NFQ=5 | |
21882 | ||
21883 | C...Find s as sum of 3-, 4- and 5-flavour parts. | |
21884 | S=0D0 | |
21885 | IF(NFP.EQ.3) THEN | |
21886 | Q2DIV=PMC**2 | |
21887 | IF(NFQ.EQ.3) Q2DIV=Q2EFF | |
21888 | S=S+(6D0/27D0)*LOG(LOG(Q2DIV/ALAM3**2)/LOG(P2EFF/ALAM3**2)) | |
21889 | ENDIF | |
21890 | IF(NFP.LE.4.AND.NFQ.GE.4) THEN | |
21891 | P2DIV=P2EFF | |
21892 | IF(NFP.EQ.3) P2DIV=PMC**2 | |
21893 | Q2DIV=Q2EFF | |
21894 | IF(NFQ.EQ.5) Q2DIV=PMB**2 | |
21895 | S=S+(6D0/25D0)*LOG(LOG(Q2DIV/ALAM**2)/LOG(P2DIV/ALAM**2)) | |
21896 | ENDIF | |
21897 | IF(NFQ.EQ.5) THEN | |
21898 | P2DIV=PMB**2 | |
21899 | IF(NFP.EQ.5) P2DIV=P2EFF | |
21900 | S=S+(6D0/23D0)*LOG(LOG(Q2EFF/ALAM5**2)/LOG(P2DIV/ALAM5**2)) | |
21901 | ENDIF | |
21902 | ||
21903 | C...Calculate frequent combinations of x and s. | |
21904 | X1=1D0-X | |
21905 | XL=-LOG(X) | |
21906 | S2=S**2 | |
21907 | S3=S**3 | |
21908 | S4=S**4 | |
21909 | ||
21910 | C...Evaluate homogeneous anomalous parton distributions below or | |
21911 | C...above threshold. | |
21912 | IF(ISET.EQ.0) THEN | |
21913 | IF(Q2.LE.P2.OR.(KFA.EQ.4.AND.Q2.LT.PMC**2).OR. | |
21914 | & (KFA.EQ.5.AND.Q2.LT.PMB**2)) THEN | |
21915 | XVAL = X * 1.5D0 * (X**2+X1**2) | |
21916 | XGLU = 0D0 | |
21917 | XSEA = 0D0 | |
21918 | ELSE | |
21919 | XVAL = (1.5D0/(1D0-0.197D0*S+4.33D0*S2)*X**2 + | |
21920 | & (1.5D0+2.10D0*S)/(1D0+3.29D0*S)*X1**2 + | |
21921 | & 5.23D0*S/(1D0+1.17D0*S+19.9D0*S3)*X*X1) * | |
21922 | & X**(1D0/(1D0+1.5D0*S)) * (1D0-X**2)**(2.667D0*S) | |
21923 | XGLU = 4D0*S/(1D0+4.76D0*S+15.2D0*S2+29.3D0*S4) * | |
21924 | & X**(-2.03D0*S/(1D0+2.44D0*S)) * (X1*XL)**(1.333D0*S) * | |
21925 | & ((4D0*X**2+7D0*X+4D0)*X1/3D0 - 2D0*X*(1D0+X)*XL) | |
21926 | XSEA = S2/(1D0+4.54D0*S+8.19D0*S2+8.05D0*S3) * | |
21927 | & X**(-1.54D0*S/(1D0+1.29D0*S)) * X1**(2.667D0*S) * | |
21928 | & ((8D0-73D0*X+62D0*X**2)*X1/9D0 + (3D0-8D0*X**2/3D0)*X*XL + | |
21929 | & (2D0*X-1D0)*X*XL**2) | |
21930 | ENDIF | |
21931 | ||
21932 | C...Evaluate set 1D parton distributions below or above threshold. | |
21933 | ELSEIF(ISET.EQ.1) THEN | |
21934 | IF(Q2.LE.P2.OR.(KFA.EQ.4.AND.Q2.LT.PMC**2).OR. | |
21935 | & (KFA.EQ.5.AND.Q2.LT.PMB**2)) THEN | |
21936 | XVAL = 1.294D0 * X**0.80D0 * X1**0.76D0 | |
21937 | XGLU = 1.273D0 * X**0.40D0 * X1**1.76D0 | |
21938 | XSEA = 0.100D0 * X1**3.76D0 | |
21939 | ELSE | |
21940 | XVAL = 1.294D0/(1D0+0.252D0*S+3.079D0*S2) * | |
21941 | & X**(0.80D0-0.13D0*S) * X1**(0.76D0+0.667D0*S) * XL**(2D0*S) | |
21942 | XGLU = 7.90D0*S/(1D0+5.50D0*S) * EXP(-5.16D0*S) * | |
21943 | & X**(-1.90D0*S/(1D0+3.60D0*S)) * X1**1.30D0 * | |
21944 | & XL**(0.50D0+3D0*S) + 1.273D0 * EXP(-10D0*S) * | |
21945 | & X**0.40D0 * X1**(1.76D0+3D0*S) | |
21946 | XSEA = (0.1D0-0.397D0*S2+1.121D0*S3)/ | |
21947 | & (1D0+5.61D0*S2+5.26D0*S3) * X**(-7.32D0*S2/(1D0+10.3D0*S2)) * | |
21948 | & X1**((3.76D0+15D0*S+12D0*S2)/(1D0+4D0*S)) | |
21949 | XSEA0 = 0.100D0 * X1**3.76D0 | |
21950 | ENDIF | |
21951 | ||
21952 | C...Evaluate set 1M parton distributions below or above threshold. | |
21953 | ELSEIF(ISET.EQ.2) THEN | |
21954 | IF(Q2.LE.P2.OR.(KFA.EQ.4.AND.Q2.LT.PMC**2).OR. | |
21955 | & (KFA.EQ.5.AND.Q2.LT.PMB**2)) THEN | |
21956 | XVAL = 0.8477D0 * X**0.51D0 * X1**1.37D0 | |
21957 | XGLU = 3.42D0 * X**0.255D0 * X1**2.37D0 | |
21958 | XSEA = 0D0 | |
21959 | ELSE | |
21960 | XVAL = 0.8477D0/(1D0+1.37D0*S+2.18D0*S2+3.73D0*S3) * | |
21961 | & X**(0.51D0+0.21D0*S) * X1**1.37D0 * XL**(2.667D0*S) | |
21962 | XGLU = 24D0*S/(1D0+9.6D0*S+0.92D0*S2+14.34D0*S3) * | |
21963 | & EXP(-5.94D0*S) * X**((-0.013D0-1.80D0*S)/(1D0+3.14D0*S)) * | |
21964 | & X1**(2.37D0+0.4D0*S) * XL**(0.32D0+3.6D0*S) + 3.42D0 * | |
21965 | & EXP(-12D0*S) * X**0.255D0 * X1**(2.37D0+3D0*S) | |
21966 | XSEA = 0.842D0*S/(1D0+21.3D0*S-33.2D0*S2+229D0*S3) * | |
21967 | & X**((0.13D0-2.90D0*S)/(1D0+5.44D0*S)) * X1**(3.45D0+0.5D0*S) * | |
21968 | & XL**(2.8D0*S) | |
21969 | XSEA0 = 0D0 | |
21970 | ENDIF | |
21971 | ||
21972 | C...Evaluate set 2D parton distributions below or above threshold. | |
21973 | ELSEIF(ISET.EQ.3) THEN | |
21974 | IF(Q2.LE.P2.OR.(KFA.EQ.4.AND.Q2.LT.PMC**2).OR. | |
21975 | & (KFA.EQ.5.AND.Q2.LT.PMB**2)) THEN | |
21976 | XVAL = X**0.46D0 * X1**0.64D0 + 0.76D0 * X | |
21977 | XGLU = 1.925D0 * X1**2 | |
21978 | XSEA = 0.242D0 * X1**4 | |
21979 | ELSE | |
21980 | XVAL = (1D0+0.186D0*S)/(1D0-0.209D0*S+1.495D0*S2) * | |
21981 | & X**(0.46D0+0.25D0*S) * | |
21982 | & X1**((0.64D0+0.14D0*S+5D0*S2)/(1D0+S)) * XL**(1.9D0*S) + | |
21983 | & (0.76D0+0.4D0*S) * X * X1**(2.667D0*S) | |
21984 | XGLU = (1.925D0+5.55D0*S+147D0*S2)/(1D0-3.59D0*S+3.32D0*S2) * | |
21985 | & EXP(-18.67D0*S) * | |
21986 | & X**((-5.81D0*S-5.34D0*S2)/(1D0+29D0*S-4.26D0*S2)) | |
21987 | & * X1**((2D0-5.9D0*S)/(1D0+1.7D0*S)) * | |
21988 | & XL**(9.3D0*S/(1D0+1.7D0*S)) | |
21989 | XSEA = (0.242D0-0.252D0*S+1.19D0*S2)/ | |
21990 | & (1D0-0.607D0*S+21.95D0*S2) * | |
21991 | & X**(-12.1D0*S2/(1D0+2.62D0*S+16.7D0*S2)) * X1**4 * XL**S | |
21992 | XSEA0 = 0.242D0 * X1**4 | |
21993 | ENDIF | |
21994 | ||
21995 | C...Evaluate set 2M parton distributions below or above threshold. | |
21996 | ELSEIF(ISET.EQ.4) THEN | |
21997 | IF(Q2.LE.P2.OR.(KFA.EQ.4.AND.Q2.LT.PMC**2).OR. | |
21998 | & (KFA.EQ.5.AND.Q2.LT.PMB**2)) THEN | |
21999 | XVAL = 1.168D0 * X**0.50D0 * X1**2.60D0 + 0.965D0 * X | |
22000 | XGLU = 1.808D0 * X1**2 | |
22001 | XSEA = 0.209D0 * X1**4 | |
22002 | ELSE | |
22003 | XVAL = (1.168D0+1.771D0*S+29.35D0*S2) * EXP(-5.776D0*S) * | |
22004 | & X**((0.5D0+0.208D0*S)/(1D0-0.794D0*S+1.516D0*S2)) * | |
22005 | & X1**((2.6D0+7.6D0*S)/(1D0+5D0*S)) * | |
22006 | & XL**(5.15D0*S/(1D0+2D0*S)) + | |
22007 | & (0.965D0+22.35D0*S)/(1D0+18.4D0*S) * X * X1**(2.667D0*S) | |
22008 | XGLU = (1.808D0+29.9D0*S)/(1D0+26.4D0*S) * EXP(-5.28D0*S) * | |
22009 | & X**((-5.35D0*S-10.11D0*S2)/(1D0+31.71D0*S)) * | |
22010 | & X1**((2D0-7.3D0*S+4D0*S2)/(1D0+2.5D0*S)) * | |
22011 | & XL**(10.9D0*S/(1D0+2.5D0*S)) | |
22012 | XSEA = (0.209D0+0.644D0*S2)/(1D0+0.319D0*S+17.6D0*S2) * | |
22013 | & X**((-0.373D0*S-7.71D0*S2)/(1D0+0.815D0*S+11.0D0*S2)) * | |
22014 | & X1**(4D0+S) * XL**(0.45D0*S) | |
22015 | XSEA0 = 0.209D0 * X1**4 | |
22016 | ENDIF | |
22017 | ENDIF | |
22018 | ||
22019 | C...Threshold factors for c and b sea. | |
22020 | SLL=LOG(LOG(Q2EFF/ALAM**2)/LOG(P2EFF/ALAM**2)) | |
22021 | XCHM=0D0 | |
22022 | IF(Q2.GT.PMC**2.AND.Q2.GT.1.001D0*P2EFF) THEN | |
22023 | SCH=MAX(0D0,LOG(LOG(PMC**2/ALAM**2)/LOG(P2EFF/ALAM**2))) | |
22024 | IF(ISET.EQ.0) THEN | |
22025 | XCHM=XSEA*(1D0-(SCH/SLL)**2) | |
22026 | ELSE | |
22027 | XCHM=MAX(0D0,XSEA-XSEA0*X1**(2.667D0*S))*(1D0-SCH/SLL) | |
22028 | ENDIF | |
22029 | ENDIF | |
22030 | XBOT=0D0 | |
22031 | IF(Q2.GT.PMB**2.AND.Q2.GT.1.001D0*P2EFF) THEN | |
22032 | SBT=MAX(0D0,LOG(LOG(PMB**2/ALAM**2)/LOG(P2EFF/ALAM**2))) | |
22033 | IF(ISET.EQ.0) THEN | |
22034 | XBOT=XSEA*(1D0-(SBT/SLL)**2) | |
22035 | ELSE | |
22036 | XBOT=MAX(0D0,XSEA-XSEA0*X1**(2.667D0*S))*(1D0-SBT/SLL) | |
22037 | ENDIF | |
22038 | ENDIF | |
22039 | ||
22040 | C...Fill parton distributions. | |
22041 | XPGA(0)=XGLU | |
22042 | XPGA(1)=XSEA | |
22043 | XPGA(2)=XSEA | |
22044 | XPGA(3)=XSEA | |
22045 | XPGA(4)=XCHM | |
22046 | XPGA(5)=XBOT | |
22047 | XPGA(KFA)=XPGA(KFA)+XVAL | |
22048 | DO 110 KFL=1,5 | |
22049 | XPGA(-KFL)=XPGA(KFL) | |
22050 | 110 CONTINUE | |
22051 | VXPGA(KFA)=XVAL | |
22052 | VXPGA(-KFA)=XVAL | |
22053 | ||
22054 | RETURN | |
22055 | END | |
22056 | ||
22057 | C********************************************************************* | |
22058 | ||
22059 | C...PYGANO | |
22060 | C...Evaluates the parton distributions of the anomalous photon, | |
22061 | C...inhomogeneously evolved from a scale P2 (where it vanishes) to Q2. | |
22062 | C...KF=0 gives the sum over (up to) 5 flavours, | |
22063 | C...KF<0 limits to flavours up to abs(KF), | |
22064 | C...KF>0 is for flavour KF only. | |
22065 | C...ALAM is the 4-flavour Lambda, which is automatically converted | |
22066 | C...to 3- and 5-flavour equivalents as needed. | |
22067 | C...Adapted from SaSgam library, authors G.A. Schuler and T. Sjostrand. | |
22068 | ||
22069 | SUBROUTINE PYGANO(KF,X,Q2,P2,ALAM,XPGA,VXPGA) | |
22070 | ||
22071 | C...Double precision and integer declarations. | |
22072 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
22073 | INTEGER PYK,PYCHGE,PYCOMP | |
22074 | C...Local arrays and data. | |
22075 | DIMENSION XPGA(-6:6), VXPGA(-6:6), ALAMSQ(3:5) | |
22076 | DATA PMC/1.3D0/, PMB/4.6D0/, AEM/0.007297D0/, AEM2PI/0.0011614D0/ | |
22077 | ||
22078 | C...Reset output. | |
22079 | DO 100 KFL=-6,6 | |
22080 | XPGA(KFL)=0D0 | |
22081 | VXPGA(KFL)=0D0 | |
22082 | 100 CONTINUE | |
22083 | IF(Q2.LE.P2) RETURN | |
22084 | KFA=IABS(KF) | |
22085 | ||
22086 | C...Calculate Lambda; protect against unphysical Q2 and P2 input. | |
22087 | ALAMSQ(3)=(ALAM*(PMC/ALAM)**(2D0/27D0))**2 | |
22088 | ALAMSQ(4)=ALAM**2 | |
22089 | ALAMSQ(5)=(ALAM*(ALAM/PMB)**(2D0/23D0))**2 | |
22090 | P2EFF=MAX(P2,1.2D0*ALAMSQ(3)) | |
22091 | IF(KF.EQ.4) P2EFF=MAX(P2EFF,PMC**2) | |
22092 | IF(KF.EQ.5) P2EFF=MAX(P2EFF,PMB**2) | |
22093 | Q2EFF=MAX(Q2,P2EFF) | |
22094 | XL=-LOG(X) | |
22095 | ||
22096 | C...Find number of flavours at lower and upper scale. | |
22097 | NFP=4 | |
22098 | IF(P2EFF.LT.PMC**2) NFP=3 | |
22099 | IF(P2EFF.GT.PMB**2) NFP=5 | |
22100 | NFQ=4 | |
22101 | IF(Q2EFF.LT.PMC**2) NFQ=3 | |
22102 | IF(Q2EFF.GT.PMB**2) NFQ=5 | |
22103 | ||
22104 | C...Define range of flavour loop. | |
22105 | IF(KF.EQ.0) THEN | |
22106 | KFLMN=1 | |
22107 | KFLMX=5 | |
22108 | ELSEIF(KF.LT.0) THEN | |
22109 | KFLMN=1 | |
22110 | KFLMX=KFA | |
22111 | ELSE | |
22112 | KFLMN=KFA | |
22113 | KFLMX=KFA | |
22114 | ENDIF | |
22115 | ||
22116 | C...Loop over flavours the photon can branch into. | |
22117 | DO 110 KFL=KFLMN,KFLMX | |
22118 | ||
22119 | C...Light flavours: calculate t range and (approximate) s range. | |
22120 | IF(KFL.LE.3.AND.(KFL.EQ.1.OR.KFL.EQ.KF)) THEN | |
22121 | TDIFF=LOG(Q2EFF/P2EFF) | |
22122 | S=(6D0/(33D0-2D0*NFQ))*LOG(LOG(Q2EFF/ALAMSQ(NFQ))/ | |
22123 | & LOG(P2EFF/ALAMSQ(NFQ))) | |
22124 | IF(NFQ.GT.NFP) THEN | |
22125 | Q2DIV=PMB**2 | |
22126 | IF(NFQ.EQ.4) Q2DIV=PMC**2 | |
22127 | SNFQ=(6D0/(33D0-2D0*NFQ))*LOG(LOG(Q2DIV/ALAMSQ(NFQ))/ | |
22128 | & LOG(P2EFF/ALAMSQ(NFQ))) | |
22129 | SNFP=(6D0/(33D0-2D0*(NFQ-1)))*LOG(LOG(Q2DIV/ALAMSQ(NFQ-1))/ | |
22130 | & LOG(P2EFF/ALAMSQ(NFQ-1))) | |
22131 | S=S+(LOG(Q2DIV/P2EFF)/LOG(Q2EFF/P2EFF))*(SNFP-SNFQ) | |
22132 | ENDIF | |
22133 | IF(NFQ.EQ.5.AND.NFP.EQ.3) THEN | |
22134 | Q2DIV=PMC**2 | |
22135 | SNF4=(6D0/(33D0-2D0*4))*LOG(LOG(Q2DIV/ALAMSQ(4))/ | |
22136 | & LOG(P2EFF/ALAMSQ(4))) | |
22137 | SNF3=(6D0/(33D0-2D0*3))*LOG(LOG(Q2DIV/ALAMSQ(3))/ | |
22138 | & LOG(P2EFF/ALAMSQ(3))) | |
22139 | S=S+(LOG(Q2DIV/P2EFF)/LOG(Q2EFF/P2EFF))*(SNF3-SNF4) | |
22140 | ENDIF | |
22141 | ||
22142 | C...u and s quark do not need a separate treatment when d has been done. | |
22143 | ELSEIF(KFL.EQ.2.OR.KFL.EQ.3) THEN | |
22144 | ||
22145 | C...Charm: as above, but only include range above c threshold. | |
22146 | ELSEIF(KFL.EQ.4) THEN | |
22147 | IF(Q2.LE.PMC**2) GOTO 110 | |
22148 | P2EFF=MAX(P2EFF,PMC**2) | |
22149 | Q2EFF=MAX(Q2EFF,P2EFF) | |
22150 | TDIFF=LOG(Q2EFF/P2EFF) | |
22151 | S=(6D0/(33D0-2D0*NFQ))*LOG(LOG(Q2EFF/ALAMSQ(NFQ))/ | |
22152 | & LOG(P2EFF/ALAMSQ(NFQ))) | |
22153 | IF(NFQ.EQ.5.AND.NFP.EQ.4) THEN | |
22154 | Q2DIV=PMB**2 | |
22155 | SNFQ=(6D0/(33D0-2D0*NFQ))*LOG(LOG(Q2DIV/ALAMSQ(NFQ))/ | |
22156 | & LOG(P2EFF/ALAMSQ(NFQ))) | |
22157 | SNFP=(6D0/(33D0-2D0*(NFQ-1)))*LOG(LOG(Q2DIV/ALAMSQ(NFQ-1))/ | |
22158 | & LOG(P2EFF/ALAMSQ(NFQ-1))) | |
22159 | S=S+(LOG(Q2DIV/P2EFF)/LOG(Q2EFF/P2EFF))*(SNFP-SNFQ) | |
22160 | ENDIF | |
22161 | ||
22162 | C...Bottom: as above, but only include range above b threshold. | |
22163 | ELSEIF(KFL.EQ.5) THEN | |
22164 | IF(Q2.LE.PMB**2) GOTO 110 | |
22165 | P2EFF=MAX(P2EFF,PMB**2) | |
22166 | Q2EFF=MAX(Q2,P2EFF) | |
22167 | TDIFF=LOG(Q2EFF/P2EFF) | |
22168 | S=(6D0/(33D0-2D0*NFQ))*LOG(LOG(Q2EFF/ALAMSQ(NFQ))/ | |
22169 | & LOG(P2EFF/ALAMSQ(NFQ))) | |
22170 | ENDIF | |
22171 | ||
22172 | C...Evaluate flavour-dependent prefactor (charge^2 etc.). | |
22173 | CHSQ=1D0/9D0 | |
22174 | IF(KFL.EQ.2.OR.KFL.EQ.4) CHSQ=4D0/9D0 | |
22175 | FAC=AEM2PI*2D0*CHSQ*TDIFF | |
22176 | ||
22177 | C...Evaluate parton distributions (normalized to unit momentum sum). | |
22178 | IF(KFL.EQ.1.OR.KFL.EQ.4.OR.KFL.EQ.5.OR.KFL.EQ.KF) THEN | |
22179 | XVAL= ((1.5D0+2.49D0*S+26.9D0*S**2)/(1D0+32.3D0*S**2)*X**2 + | |
22180 | & (1.5D0-0.49D0*S+7.83D0*S**2)/(1D0+7.68D0*S**2)*(1D0-X)**2 + | |
22181 | & 1.5D0*S/(1D0-3.2D0*S+7D0*S**2)*X*(1D0-X)) * | |
22182 | & X**(1D0/(1D0+0.58D0*S)) * (1D0-X**2)**(2.5D0*S/(1D0+10D0*S)) | |
22183 | XGLU= 2D0*S/(1D0+4D0*S+7D0*S**2) * | |
22184 | & X**(-1.67D0*S/(1D0+2D0*S)) * (1D0-X**2)**(1.2D0*S) * | |
22185 | & ((4D0*X**2+7D0*X+4D0)*(1D0-X)/3D0 - 2D0*X*(1D0+X)*XL) | |
22186 | XSEA= 0.333D0*S**2/(1D0+4.90D0*S+4.69D0*S**2+21.4D0*S**3) * | |
22187 | & X**(-1.18D0*S/(1D0+1.22D0*S)) * (1D0-X)**(1.2D0*S) * | |
22188 | & ((8D0-73D0*X+62D0*X**2)*(1D0-X)/9D0 + | |
22189 | & (3D0-8D0*X**2/3D0)*X*XL + (2D0*X-1D0)*X*XL**2) | |
22190 | ||
22191 | C...Threshold factors for c and b sea. | |
22192 | SLL=LOG(LOG(Q2EFF/ALAM**2)/LOG(P2EFF/ALAM**2)) | |
22193 | XCHM=0D0 | |
22194 | IF(Q2.GT.PMC**2.AND.Q2.GT.1.001D0*P2EFF) THEN | |
22195 | SCH=MAX(0D0,LOG(LOG(PMC**2/ALAM**2)/LOG(P2EFF/ALAM**2))) | |
22196 | XCHM=XSEA*(1D0-(SCH/SLL)**3) | |
22197 | ENDIF | |
22198 | XBOT=0D0 | |
22199 | IF(Q2.GT.PMB**2.AND.Q2.GT.1.001D0*P2EFF) THEN | |
22200 | SBT=MAX(0D0,LOG(LOG(PMB**2/ALAM**2)/LOG(P2EFF/ALAM**2))) | |
22201 | XBOT=XSEA*(1D0-(SBT/SLL)**3) | |
22202 | ENDIF | |
22203 | ENDIF | |
22204 | ||
22205 | C...Add contribution of each valence flavour. | |
22206 | XPGA(0)=XPGA(0)+FAC*XGLU | |
22207 | XPGA(1)=XPGA(1)+FAC*XSEA | |
22208 | XPGA(2)=XPGA(2)+FAC*XSEA | |
22209 | XPGA(3)=XPGA(3)+FAC*XSEA | |
22210 | XPGA(4)=XPGA(4)+FAC*XCHM | |
22211 | XPGA(5)=XPGA(5)+FAC*XBOT | |
22212 | XPGA(KFL)=XPGA(KFL)+FAC*XVAL | |
22213 | VXPGA(KFL)=VXPGA(KFL)+FAC*XVAL | |
22214 | 110 CONTINUE | |
22215 | DO 120 KFL=1,5 | |
22216 | XPGA(-KFL)=XPGA(KFL) | |
22217 | VXPGA(-KFL)=VXPGA(KFL) | |
22218 | 120 CONTINUE | |
22219 | ||
22220 | RETURN | |
22221 | END | |
22222 | ||
22223 | C********************************************************************* | |
22224 | ||
22225 | C...PYGBEH | |
22226 | C...Evaluates the Bethe-Heitler cross section for heavy flavour | |
22227 | C...production. | |
22228 | C...Adapted from SaSgam library, authors G.A. Schuler and T. Sjostrand. | |
22229 | ||
22230 | SUBROUTINE PYGBEH(KF,X,Q2,P2,PM2,XPBH) | |
22231 | C...Double precision and integer declarations. | |
22232 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
22233 | INTEGER PYK,PYCHGE,PYCOMP | |
22234 | ||
22235 | C...Local data. | |
22236 | DATA AEM2PI/0.0011614D0/ | |
22237 | ||
22238 | C...Reset output. | |
22239 | XPBH=0D0 | |
22240 | SIGBH=0D0 | |
22241 | ||
22242 | C...Check kinematics limits. | |
22243 | IF(X.GE.Q2/(4D0*PM2+Q2+P2)) RETURN | |
22244 | W2=Q2*(1D0-X)/X-P2 | |
22245 | BETA2=1D0-4D0*PM2/W2 | |
22246 | IF(BETA2.LT.1D-10) RETURN | |
22247 | BETA=SQRT(BETA2) | |
22248 | RMQ=4D0*PM2/Q2 | |
22249 | ||
22250 | C...Simple case: P2 = 0. | |
22251 | IF(P2.LT.1D-4) THEN | |
22252 | IF(BETA.LT.0.99D0) THEN | |
22253 | XBL=LOG((1D0+BETA)/(1D0-BETA)) | |
22254 | ELSE | |
22255 | XBL=LOG((1D0+BETA)**2*W2/(4D0*PM2)) | |
22256 | ENDIF | |
22257 | SIGBH=BETA*(8D0*X*(1D0-X)-1D0-RMQ*X*(1D0-X))+ | |
22258 | & XBL*(X**2+(1D0-X)**2+RMQ*X*(1D0-3D0*X)-0.5D0*RMQ**2*X**2) | |
22259 | ||
22260 | C...Complicated case: P2 > 0, based on approximation of | |
22261 | C...C.T. Hill and G.G. Ross, Nucl. Phys. B148 (1979) 373 | |
22262 | ELSE | |
22263 | RPQ=1D0-4D0*X**2*P2/Q2 | |
22264 | IF(RPQ.GT.1D-10) THEN | |
22265 | RPBE=SQRT(RPQ*BETA2) | |
22266 | IF(RPBE.LT.0.99D0) THEN | |
22267 | XBL=LOG((1D0+RPBE)/(1D0-RPBE)) | |
22268 | XBI=2D0*RPBE/(1D0-RPBE**2) | |
22269 | ELSE | |
22270 | RPBESN=4D0*PM2/W2+(4D0*X**2*P2/Q2)*BETA2 | |
22271 | XBL=LOG((1D0+RPBE)**2/RPBESN) | |
22272 | XBI=2D0*RPBE/RPBESN | |
22273 | ENDIF | |
22274 | SIGBH=BETA*(6D0*X*(1D0-X)-1D0)+ | |
22275 | & XBL*(X**2+(1D0-X)**2+RMQ*X*(1D0-3D0*X)-0.5D0*RMQ**2*X**2)+ | |
22276 | & XBI*(2D0*X/Q2)*(PM2*X*(2D0-RMQ)-P2*X) | |
22277 | ENDIF | |
22278 | ENDIF | |
22279 | ||
22280 | C...Multiply by charge-squared etc. to get parton distribution. | |
22281 | CHSQ=1D0/9D0 | |
22282 | IF(IABS(KF).EQ.2.OR.IABS(KF).EQ.4) CHSQ=4D0/9D0 | |
22283 | XPBH=3D0*CHSQ*AEM2PI*X*SIGBH | |
22284 | ||
22285 | RETURN | |
22286 | END | |
22287 | ||
22288 | C********************************************************************* | |
22289 | ||
22290 | C...PYGDIR | |
22291 | C...Evaluates the direct contribution, i.e. the C^gamma term, | |
22292 | C...as needed in MSbar parametrizations. | |
22293 | C...Adapted from SaSgam library, authors G.A. Schuler and T. Sjostrand. | |
22294 | ||
22295 | SUBROUTINE PYGDIR(X,Q2,P2,Q02,XPGA) | |
22296 | ||
22297 | C...Double precision and integer declarations. | |
22298 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
22299 | INTEGER PYK,PYCHGE,PYCOMP | |
22300 | C...Local array and data. | |
22301 | DIMENSION XPGA(-6:6) | |
22302 | DATA PMC/1.3D0/, PMB/4.6D0/, AEM2PI/0.0011614D0/ | |
22303 | ||
22304 | C...Reset output. | |
22305 | DO 100 KFL=-6,6 | |
22306 | XPGA(KFL)=0D0 | |
22307 | 100 CONTINUE | |
22308 | ||
22309 | C...Evaluate common x-dependent expression. | |
22310 | XTMP = (X**2+(1D0-X)**2) * (-LOG(X)) - 1D0 | |
22311 | CGAM = 3D0*AEM2PI*X * (XTMP*(1D0+P2/(P2+Q02)) + 6D0*X*(1D0-X)) | |
22312 | ||
22313 | C...d, u, s part by simple charge factor. | |
22314 | XPGA(1)=(1D0/9D0)*CGAM | |
22315 | XPGA(2)=(4D0/9D0)*CGAM | |
22316 | XPGA(3)=(1D0/9D0)*CGAM | |
22317 | ||
22318 | C...Also fill for antiquarks. | |
22319 | DO 110 KF=1,5 | |
22320 | XPGA(-KF)=XPGA(KF) | |
22321 | 110 CONTINUE | |
22322 | ||
22323 | RETURN | |
22324 | END | |
22325 | ||
22326 | C********************************************************************* | |
22327 | ||
22328 | C...PYPDPI | |
22329 | C...Gives pi+ parton distribution according to two different | |
22330 | C...parametrizations. | |
22331 | ||
22332 | SUBROUTINE PYPDPI(X,Q2,XPPI) | |
22333 | ||
22334 | C...Double precision and integer declarations. | |
22335 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
22336 | INTEGER PYK,PYCHGE,PYCOMP | |
22337 | C...Commonblocks. | |
22338 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
22339 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
22340 | COMMON/PYINT1/MINT(400),VINT(400) | |
22341 | SAVE /PYDAT1/,/PYPARS/,/PYINT1/ | |
22342 | C...Local arrays. | |
22343 | DIMENSION XPPI(-6:6),COW(3,5,4,2),XQ(9),TS(6) | |
22344 | ||
22345 | C...The following data lines are coefficients needed in the | |
22346 | C...Owens pion parton distribution parametrizations, see below. | |
22347 | C...Expansion coefficients for up and down valence quark distributions. | |
22348 | DATA ((COW(IP,IS,1,1),IS=1,5),IP=1,3)/ | |
22349 | &4.0000D-01, 7.0000D-01, 0.0000D+00, 0.0000D+00, 0.0000D+00, | |
22350 | &-6.2120D-02, 6.4780D-01, 0.0000D+00, 0.0000D+00, 0.0000D+00, | |
22351 | &-7.1090D-03, 1.3350D-02, 0.0000D+00, 0.0000D+00, 0.0000D+00/ | |
22352 | DATA ((COW(IP,IS,1,2),IS=1,5),IP=1,3)/ | |
22353 | &4.0000D-01, 6.2800D-01, 0.0000D+00, 0.0000D+00, 0.0000D+00, | |
22354 | &-5.9090D-02, 6.4360D-01, 0.0000D+00, 0.0000D+00, 0.0000D+00, | |
22355 | &-6.5240D-03, 1.4510D-02, 0.0000D+00, 0.0000D+00, 0.0000D+00/ | |
22356 | C...Expansion coefficients for gluon distribution. | |
22357 | DATA ((COW(IP,IS,2,1),IS=1,5),IP=1,3)/ | |
22358 | &8.8800D-01, 0.0000D+00, 3.1100D+00, 6.0000D+00, 0.0000D+00, | |
22359 | &-1.8020D+00, -1.5760D+00, -1.3170D-01, 2.8010D+00, -1.7280D+01, | |
22360 | &1.8120D+00, 1.2000D+00, 5.0680D-01, -1.2160D+01, 2.0490D+01/ | |
22361 | DATA ((COW(IP,IS,2,2),IS=1,5),IP=1,3)/ | |
22362 | &7.9400D-01, 0.0000D+00, 2.8900D+00, 6.0000D+00, 0.0000D+00, | |
22363 | &-9.1440D-01, -1.2370D+00, 5.9660D-01, -3.6710D+00, -8.1910D+00, | |
22364 | &5.9660D-01, 6.5820D-01, -2.5500D-01, -2.3040D+00, 7.7580D+00/ | |
22365 | C...Expansion coefficients for (up+down+strange) quark sea distribution. | |
22366 | DATA ((COW(IP,IS,3,1),IS=1,5),IP=1,3)/ | |
22367 | &9.0000D-01, 0.0000D+00, 5.0000D+00, 0.0000D+00, 0.0000D+00, | |
22368 | &-2.4280D-01, -2.1200D-01, 8.6730D-01, 1.2660D+00, 2.3820D+00, | |
22369 | &1.3860D-01, 3.6710D-03, 4.7470D-02, -2.2150D+00, 3.4820D-01/ | |
22370 | DATA ((COW(IP,IS,3,2),IS=1,5),IP=1,3)/ | |
22371 | &9.0000D-01, 0.0000D+00, 5.0000D+00, 0.0000D+00, 0.0000D+00, | |
22372 | &-1.4170D-01, -1.6970D-01, -2.4740D+00, -2.5340D+00, 5.6210D-01, | |
22373 | &-1.7400D-01, -9.6230D-02, 1.5750D+00, 1.3780D+00, -2.7010D-01/ | |
22374 | C...Expansion coefficients for charm quark sea distribution. | |
22375 | DATA ((COW(IP,IS,4,1),IS=1,5),IP=1,3)/ | |
22376 | &0.0000D+00, -2.2120D-02, 2.8940D+00, 0.0000D+00, 0.0000D+00, | |
22377 | &7.9280D-02, -3.7850D-01, 9.4330D+00, 5.2480D+00, 8.3880D+00, | |
22378 | &-6.1340D-02, -1.0880D-01, -1.0852D+01, -7.1870D+00, -1.1610D+01/ | |
22379 | DATA ((COW(IP,IS,4,2),IS=1,5),IP=1,3)/ | |
22380 | &0.0000D+00, -8.8200D-02, 1.9240D+00, 0.0000D+00, 0.0000D+00, | |
22381 | &6.2290D-02, -2.8920D-01, 2.4240D-01, -4.4630D+00, -8.3670D-01, | |
22382 | &-4.0990D-02, -1.0820D-01, 2.0360D+00, 5.2090D+00, -4.8400D-02/ | |
22383 | ||
22384 | C...Euler's beta function, requires ordinary Gamma function | |
22385 | EULBET(X,Y)=PYGAMM(X)*PYGAMM(Y)/PYGAMM(X+Y) | |
22386 | ||
22387 | C...Reset output array. | |
22388 | DO 100 KFL=-6,6 | |
22389 | XPPI(KFL)=0D0 | |
22390 | 100 CONTINUE | |
22391 | ||
22392 | IF(MSTP(53).LE.2) THEN | |
22393 | C...Pion parton distributions from Owens. | |
22394 | C...Allowed variable range: 4 GeV^2 < Q^2 < approx 2000 GeV^2. | |
22395 | ||
22396 | C...Determine set, Lambda and s expansion variable. | |
22397 | NSET=MSTP(53) | |
22398 | IF(NSET.EQ.1) ALAM=0.2D0 | |
22399 | IF(NSET.EQ.2) ALAM=0.4D0 | |
22400 | VINT(231)=4D0 | |
22401 | IF(MSTP(57).LE.0) THEN | |
22402 | SD=0D0 | |
22403 | ELSE | |
22404 | Q2IN=MIN(2D3,MAX(4D0,Q2)) | |
22405 | SD=LOG(LOG(Q2IN/ALAM**2)/LOG(4D0/ALAM**2)) | |
22406 | ENDIF | |
22407 | ||
22408 | C...Calculate parton distributions. | |
22409 | DO 120 KFL=1,4 | |
22410 | DO 110 IS=1,5 | |
22411 | TS(IS)=COW(1,IS,KFL,NSET)+COW(2,IS,KFL,NSET)*SD+ | |
22412 | & COW(3,IS,KFL,NSET)*SD**2 | |
22413 | 110 CONTINUE | |
22414 | IF(KFL.EQ.1) THEN | |
22415 | XQ(KFL)=X**TS(1)*(1D0-X)**TS(2)/EULBET(TS(1),TS(2)+1D0) | |
22416 | ELSE | |
22417 | XQ(KFL)=TS(1)*X**TS(2)*(1D0-X)**TS(3)*(1D0+TS(4)*X+ | |
22418 | & TS(5)*X**2) | |
22419 | ENDIF | |
22420 | 120 CONTINUE | |
22421 | ||
22422 | C...Put into output array. | |
22423 | XPPI(0)=XQ(2) | |
22424 | XPPI(1)=XQ(3)/6D0 | |
22425 | XPPI(2)=XQ(1)+XQ(3)/6D0 | |
22426 | XPPI(3)=XQ(3)/6D0 | |
22427 | XPPI(4)=XQ(4) | |
22428 | XPPI(-1)=XQ(1)+XQ(3)/6D0 | |
22429 | XPPI(-2)=XQ(3)/6D0 | |
22430 | XPPI(-3)=XQ(3)/6D0 | |
22431 | XPPI(-4)=XQ(4) | |
22432 | ||
22433 | C...Leading order pion parton distributions from Gluck, Reya and Vogt. | |
22434 | C...Allowed variable range: 0.25 GeV^2 < Q^2 < 10^8 GeV^2 and | |
22435 | C...10^-5 < x < 1. | |
22436 | ELSE | |
22437 | ||
22438 | C...Determine s expansion variable and some x expressions. | |
22439 | VINT(231)=0.25D0 | |
22440 | IF(MSTP(57).LE.0) THEN | |
22441 | SD=0D0 | |
22442 | ELSE | |
22443 | Q2IN=MIN(1D8,MAX(0.25D0,Q2)) | |
22444 | SD=LOG(LOG(Q2IN/0.232D0**2)/LOG(0.25D0/0.232D0**2)) | |
22445 | ENDIF | |
22446 | SD2=SD**2 | |
22447 | XL=-LOG(X) | |
22448 | XS=SQRT(X) | |
22449 | ||
22450 | C...Evaluate valence, gluon and sea distributions. | |
22451 | XFVAL=(0.519D0+0.180D0*SD-0.011D0*SD2)*X**(0.499D0-0.027D0*SD)* | |
22452 | & (1D0+(0.381D0-0.419D0*SD)*XS)*(1D0-X)**(0.367D0+0.563D0*SD) | |
22453 | XFGLU=(X**(0.482D0+0.341D0*SQRT(SD))*((0.678D0+0.877D0* | |
22454 | & SD-0.175D0*SD2)+ | |
22455 | & (0.338D0-1.597D0*SD)*XS+(-0.233D0*SD+0.406D0*SD2)*X)+ | |
22456 | & SD**0.599D0*EXP(-(0.618D0+2.070D0*SD)+SQRT(3.676D0*SD**1.263D0* | |
22457 | & XL)))* | |
22458 | & (1D0-X)**(0.390D0+1.053D0*SD) | |
22459 | XFSEA=SD**0.55D0*(1D0-0.748D0*XS+(0.313D0+0.935D0*SD)*X)*(1D0- | |
22460 | & X)**3.359D0* | |
22461 | & EXP(-(4.433D0+1.301D0*SD)+SQRT((9.30D0-0.887D0*SD)*SD**0.56D0* | |
22462 | & XL))/ | |
22463 | & XL**(2.538D0-0.763D0*SD) | |
22464 | IF(SD.LE.0.888D0) THEN | |
22465 | XFCHM=0D0 | |
22466 | ELSE | |
22467 | XFCHM=(SD-0.888D0)**1.02D0*(1D0+1.008D0*X)*(1D0-X)**(1.208D0+ | |
22468 | & 0.771D0*SD)* | |
22469 | & EXP(-(4.40D0+1.493D0*SD)+SQRT((2.032D0+1.901D0*SD)*SD**0.39D0* | |
22470 | & XL)) | |
22471 | ENDIF | |
22472 | IF(SD.LE.1.351D0) THEN | |
22473 | XFBOT=0D0 | |
22474 | ELSE | |
22475 | XFBOT=(SD-1.351D0)**1.03D0*(1D0-X)**(0.697D0+0.855D0*SD)* | |
22476 | & EXP(-(4.51D0+1.490D0*SD)+SQRT((3.056D0+1.694D0*SD)*SD**0.39D0* | |
22477 | & XL)) | |
22478 | ENDIF | |
22479 | ||
22480 | C...Put into output array. | |
22481 | XPPI(0)=XFGLU | |
22482 | XPPI(1)=XFSEA | |
22483 | XPPI(2)=XFSEA | |
22484 | XPPI(3)=XFSEA | |
22485 | XPPI(4)=XFCHM | |
22486 | XPPI(5)=XFBOT | |
22487 | DO 130 KFL=1,5 | |
22488 | XPPI(-KFL)=XPPI(KFL) | |
22489 | 130 CONTINUE | |
22490 | XPPI(2)=XPPI(2)+XFVAL | |
22491 | XPPI(-1)=XPPI(-1)+XFVAL | |
22492 | ENDIF | |
22493 | ||
22494 | RETURN | |
22495 | END | |
22496 | ||
22497 | C********************************************************************* | |
22498 | ||
22499 | C...PYPDPR | |
22500 | C...Gives proton parton distributions according to a few different | |
22501 | C...parametrizations. | |
22502 | ||
22503 | SUBROUTINE PYPDPR(X,Q2,XPPR) | |
22504 | ||
22505 | C...Double precision and integer declarations. | |
22506 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
22507 | INTEGER PYK,PYCHGE,PYCOMP | |
22508 | C...Commonblocks. | |
22509 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
22510 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
22511 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
22512 | COMMON/PYINT1/MINT(400),VINT(400) | |
22513 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/ | |
22514 | C...Arrays and data. | |
22515 | DIMENSION XPPR(-6:6),Q2MIN(6) | |
22516 | DATA Q2MIN/ 2.56D0, 2.56D0, 2.56D0, 0.4D0, 0.4D0, 0.4D0/ | |
22517 | ||
22518 | C...Reset output array. | |
22519 | DO 100 KFL=-6,6 | |
22520 | XPPR(KFL)=0D0 | |
22521 | 100 CONTINUE | |
22522 | ||
22523 | C...Common preliminaries. | |
22524 | NSET=MAX(1,MIN(6,MSTP(51))) | |
22525 | VINT(231)=Q2MIN(NSET) | |
22526 | IF(MSTP(57).EQ.0) THEN | |
22527 | Q2L=Q2MIN(NSET) | |
22528 | ELSE | |
22529 | Q2L=MAX(Q2MIN(NSET),Q2) | |
22530 | ENDIF | |
22531 | ||
22532 | IF(NSET.GE.1.AND.NSET.LE.3) THEN | |
22533 | C...Interface to the CTEQ 3 parton distributions. | |
22534 | QRT=SQRT(MAX(1D0,Q2L)) | |
22535 | ||
22536 | C...Loop over flavours. | |
22537 | DO 110 I=-6,6 | |
22538 | IF(I.LE.0) THEN | |
22539 | XPPR(I)=PYCTEQ(NSET,I,X,QRT) | |
22540 | ELSEIF(I.LE.2) THEN | |
22541 | XPPR(I)=PYCTEQ(NSET,I,X,QRT)+XPPR(-I) | |
22542 | ELSE | |
22543 | XPPR(I)=XPPR(-I) | |
22544 | ENDIF | |
22545 | 110 CONTINUE | |
22546 | ||
22547 | ELSEIF(NSET.GE.4.AND.NSET.LE.6) THEN | |
22548 | C...Interface to the GRV 94 distributions. | |
22549 | IF(NSET.EQ.4) THEN | |
22550 | CALL PYGRVL (X, Q2L, UV, DV, DEL, UDB, SB, CHM, BOT, GL) | |
22551 | ELSEIF(NSET.EQ.5) THEN | |
22552 | CALL PYGRVM (X, Q2L, UV, DV, DEL, UDB, SB, CHM, BOT, GL) | |
22553 | ELSE | |
22554 | CALL PYGRVD (X, Q2L, UV, DV, DEL, UDB, SB, CHM, BOT, GL) | |
22555 | ENDIF | |
22556 | ||
22557 | C...Put into output array. | |
22558 | XPPR(0)=GL | |
22559 | XPPR(-1)=0.5D0*(UDB+DEL) | |
22560 | XPPR(-2)=0.5D0*(UDB-DEL) | |
22561 | XPPR(-3)=SB | |
22562 | XPPR(-4)=CHM | |
22563 | XPPR(-5)=BOT | |
22564 | XPPR(1)=DV+XPPR(-1) | |
22565 | XPPR(2)=UV+XPPR(-2) | |
22566 | XPPR(3)=SB | |
22567 | XPPR(4)=CHM | |
22568 | XPPR(5)=BOT | |
22569 | ||
22570 | ENDIF | |
22571 | ||
22572 | RETURN | |
22573 | END | |
22574 | ||
22575 | C********************************************************************* | |
22576 | ||
22577 | C...PYCTEQ | |
22578 | C...Gives the CTEQ 3 parton distribution function sets in | |
22579 | C...parametrized form, of October 24, 1994. | |
22580 | C...Authors: H.L. Lai, J. Botts, J. Huston, J.G. Morfin, J.F. Owens, | |
22581 | C...J. Qiu, W.K. Tung and H. Weerts. | |
22582 | ||
22583 | FUNCTION PYCTEQ (ISET, IPRT, X, Q) | |
22584 | ||
22585 | C...Double precision declaration. | |
22586 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
22587 | ||
22588 | C...Data on Lambda values of fits, minimum Q and quark masses. | |
22589 | DIMENSION ALM(3), QMS(4:6) | |
22590 | DATA ALM / 0.177D0, 0.239D0, 0.247D0 / | |
22591 | DATA QMN / 1.60D0 /, (QMS(I), I=4,6) / 1.60D0, 5.00D0, 180.0D0 / | |
22592 | ||
22593 | C....Check flavour thresholds. Set up QI for SB. | |
22594 | IP = IABS(IPRT) | |
22595 | IF(IP .GE. 4) THEN | |
22596 | IF(Q .LE. QMS(IP)) THEN | |
22597 | PYCTEQ = 0D0 | |
22598 | RETURN | |
22599 | ENDIF | |
22600 | QI = QMS(IP) | |
22601 | ELSE | |
22602 | QI = QMN | |
22603 | ENDIF | |
22604 | ||
22605 | C...Use "standard lambda" of parametrization program for expansion. | |
22606 | ALAM = ALM (ISET) | |
22607 | SBL = LOG(Q/ALAM) / LOG(QI/ALAM) | |
22608 | SB = LOG (SBL) | |
22609 | SB2 = SB*SB | |
22610 | SB3 = SB2*SB | |
22611 | ||
22612 | C...Expansion for CTEQ3L. | |
22613 | IF(ISET .EQ. 1) THEN | |
22614 | IF(IPRT .EQ. 2) THEN | |
22615 | A0=Exp( 0.1907D+00+0.4205D-01*SB +0.2752D+00*SB2- | |
22616 | & 0.3171D+00*SB3) | |
22617 | A1= 0.4611D+00+0.2331D-01*SB -0.3403D-01*SB2+0.3174D-01*SB3 | |
22618 | A2= 0.3504D+01+0.5739D+00*SB +0.2676D+00*SB2-0.1553D+00*SB3 | |
22619 | A3= 0.7452D+01-0.6742D+01*SB +0.2849D+01*SB2-0.1964D+00*SB3 | |
22620 | A4= 0.1116D+01-0.3435D+00*SB +0.2865D+00*SB2-0.1288D+00*SB3 | |
22621 | A5= 0.6659D-01+0.2714D+00*SB -0.2688D+00*SB2+0.2763D+00*SB3 | |
22622 | ELSEIF(IPRT .EQ. 1) THEN | |
22623 | A0=Exp( 0.1141D+00+0.4764D+00*SB -0.1745D+01*SB2+ | |
22624 | & 0.7728D+00*SB3) | |
22625 | A1= 0.4275D+00-0.1290D+00*SB +0.3609D+00*SB2-0.1689D+00*SB3 | |
22626 | A2= 0.3000D+01+0.2946D+01*SB -0.4117D+01*SB2+0.1989D+01*SB3 | |
22627 | A3=-0.1302D+01+0.2322D+01*SB -0.4258D+01*SB2+0.2109D+01*SB3 | |
22628 | A4= 0.2586D+01-0.1920D+00*SB -0.3754D+00*SB2+0.2731D+00*SB3 | |
22629 | A5=-0.2251D+00-0.5374D+00*SB +0.2245D+01*SB2-0.1034D+01*SB3 | |
22630 | ELSEIF(IPRT .EQ. 0) THEN | |
22631 | A0=Exp(-0.7631D+00-0.7241D+00*SB -0.1170D+01*SB2+ | |
22632 | & 0.5343D+00*SB3) | |
22633 | A1=-0.3573D+00+0.3469D+00*SB -0.3396D+00*SB2+0.9188D-01*SB3 | |
22634 | A2= 0.5604D+01+0.7458D+00*SB -0.5082D+00*SB2+0.1844D+00*SB3 | |
22635 | A3= 0.1549D+02-0.1809D+02*SB +0.1162D+02*SB2-0.3483D+01*SB3 | |
22636 | A4= 0.9881D+00+0.1364D+00*SB -0.4421D+00*SB2+0.2051D+00*SB3 | |
22637 | A5=-0.9505D-01+0.3259D+01*SB -0.1547D+01*SB2+0.2918D+00*SB3 | |
22638 | ELSEIF(IPRT .EQ. -1) THEN | |
22639 | A0=Exp(-0.2449D+01-0.3513D+01*SB +0.4529D+01*SB2- | |
22640 | & 0.2031D+01*SB3) | |
22641 | A1=-0.4050D+00+0.3411D+00*SB -0.3669D+00*SB2+0.1109D+00*SB3 | |
22642 | A2= 0.7470D+01-0.2982D+01*SB +0.5503D+01*SB2-0.2419D+01*SB3 | |
22643 | A3= 0.1503D+02+0.1638D+01*SB -0.8772D+01*SB2+0.3852D+01*SB3 | |
22644 | A4= 0.1137D+01-0.1006D+01*SB +0.1485D+01*SB2-0.6389D+00*SB3 | |
22645 | A5=-0.5299D+00+0.3160D+01*SB -0.3104D+01*SB2+0.1219D+01*SB3 | |
22646 | ELSEIF(IPRT .EQ. -2) THEN | |
22647 | A0=Exp(-0.2740D+01-0.7987D-01*SB -0.9015D+00*SB2- | |
22648 | & 0.9872D-01*SB3) | |
22649 | A1=-0.3909D+00+0.1244D+00*SB -0.4487D-01*SB2+0.1277D-01*SB3 | |
22650 | A2= 0.9163D+01+0.2823D+00*SB -0.7720D+00*SB2-0.9360D-02*SB3 | |
22651 | A3= 0.1080D+02-0.3915D+01*SB -0.1153D+01*SB2+0.2649D+01*SB3 | |
22652 | A4= 0.9894D+00-0.1647D+00*SB -0.9426D-02*SB2+0.2945D-02*SB3 | |
22653 | A5=-0.3395D+00+0.6998D+00*SB +0.7000D+00*SB2-0.6730D-01*SB3 | |
22654 | ELSEIF(IPRT .EQ. -3) THEN | |
22655 | A0=Exp(-0.3640D+01+0.1250D+01*SB -0.2914D+01*SB2+ | |
22656 | & 0.8390D+00*SB3) | |
22657 | A1=-0.3595D+00-0.5259D-01*SB +0.3122D+00*SB2-0.1642D+00*SB3 | |
22658 | A2= 0.7305D+01+0.9727D+00*SB -0.9788D+00*SB2-0.5193D-01*SB3 | |
22659 | A3= 0.1198D+02-0.1799D+02*SB +0.2614D+02*SB2-0.1091D+02*SB3 | |
22660 | A4= 0.9882D+00-0.6101D+00*SB +0.9737D+00*SB2-0.4935D+00*SB3 | |
22661 | A5=-0.1186D+00-0.3231D+00*SB +0.3074D+01*SB2-0.1274D+01*SB3 | |
22662 | ELSEIF(IPRT .EQ. -4) THEN | |
22663 | A0=SB** 0.1122D+01*Exp(-0.3718D+01-0.1335D+01*SB + | |
22664 | & 0.1651D-01*SB2) | |
22665 | A1=-0.4719D+00+0.7509D+00*SB -0.8420D+00*SB2+0.2901D+00*SB3 | |
22666 | A2= 0.6194D+01-0.1641D+01*SB +0.4907D+01*SB2-0.2523D+01*SB3 | |
22667 | A3= 0.4426D+01-0.4270D+01*SB +0.6581D+01*SB2-0.3474D+01*SB3 | |
22668 | A4= 0.2683D+00+0.9876D+00*SB -0.7612D+00*SB2+0.1780D+00*SB3 | |
22669 | A5=-0.4547D+00+0.4410D+01*SB -0.3712D+01*SB2+0.1245D+01*SB3 | |
22670 | ELSEIF(IPRT .EQ. -5) THEN | |
22671 | A0=SB** 0.9838D+00*Exp(-0.2548D+01-0.7660D+01*SB + | |
22672 | & 0.3702D+01*SB2) | |
22673 | A1=-0.3122D+00-0.2120D+00*SB +0.5716D+00*SB2-0.3773D+00*SB3 | |
22674 | A2= 0.6257D+01-0.8214D-01*SB -0.2537D+01*SB2+0.2981D+01*SB3 | |
22675 | A3=-0.6723D+00+0.2131D+01*SB +0.9599D+01*SB2-0.7910D+01*SB3 | |
22676 | A4= 0.9169D-01+0.4295D-01*SB -0.5017D+00*SB2+0.3811D+00*SB3 | |
22677 | A5= 0.2402D+00+0.2656D+01*SB -0.1586D+01*SB2+0.2880D+00*SB3 | |
22678 | ELSEIF(IPRT .EQ. -6) THEN | |
22679 | A0=SB** 0.1001D+01*Exp(-0.6934D+01+0.3050D+01*SB - | |
22680 | & 0.6943D+00*SB2) | |
22681 | A1=-0.1713D+00-0.5167D+00*SB +0.1241D+01*SB2-0.1703D+01*SB3 | |
22682 | A2= 0.6169D+01+0.3023D+01*SB -0.1972D+02*SB2+0.1069D+02*SB3 | |
22683 | A3= 0.4439D+01-0.1746D+02*SB +0.1225D+02*SB2+0.8350D+00*SB3 | |
22684 | A4= 0.5458D+00-0.4586D+00*SB +0.9089D+00*SB2-0.4049D+00*SB3 | |
22685 | A5= 0.3207D+01-0.3362D+01*SB +0.5877D+01*SB2-0.7659D+01*SB3 | |
22686 | ENDIF | |
22687 | ||
22688 | C...Expansion for CTEQ3M. | |
22689 | ELSEIF(ISET .EQ. 2) THEN | |
22690 | IF(IPRT .EQ. 2) THEN | |
22691 | A0=Exp( 0.2259D+00+0.1237D+00*SB +0.3035D+00*SB2- | |
22692 | & 0.2935D+00*SB3) | |
22693 | A1= 0.5085D+00+0.1651D-01*SB -0.3592D-01*SB2+0.2782D-01*SB3 | |
22694 | A2= 0.3732D+01+0.4901D+00*SB +0.2218D+00*SB2-0.1116D+00*SB3 | |
22695 | A3= 0.7011D+01-0.6620D+01*SB +0.2557D+01*SB2-0.1360D+00*SB3 | |
22696 | A4= 0.8969D+00-0.2429D+00*SB +0.1811D+00*SB2-0.6888D-01*SB3 | |
22697 | A5= 0.8636D-01+0.2558D+00*SB -0.3082D+00*SB2+0.2535D+00*SB3 | |
22698 | ELSEIF(IPRT .EQ. 1) THEN | |
22699 | A0=Exp(-0.7266D+00-0.1584D+01*SB +0.1259D+01*SB2- | |
22700 | & 0.4305D-01*SB3) | |
22701 | A1= 0.5285D+00-0.3721D+00*SB +0.5150D+00*SB2-0.1697D+00*SB3 | |
22702 | A2= 0.4075D+01+0.8282D+00*SB -0.4496D+00*SB2+0.2107D+00*SB3 | |
22703 | A3= 0.3279D+01+0.5066D+01*SB -0.9134D+01*SB2+0.2897D+01*SB3 | |
22704 | A4= 0.4399D+00-0.5888D+00*SB +0.4802D+00*SB2-0.1664D+00*SB3 | |
22705 | A5= 0.3678D+00-0.8929D+00*SB +0.1592D+01*SB2-0.5713D+00*SB3 | |
22706 | ELSEIF(IPRT .EQ. 0) THEN | |
22707 | A0=Exp(-0.2318D+00-0.9779D+00*SB -0.3783D+00*SB2+ | |
22708 | & 0.1037D-01*SB3) | |
22709 | A1=-0.2916D+00+0.1754D+00*SB -0.1884D+00*SB2+0.6116D-01*SB3 | |
22710 | A2= 0.5349D+01+0.7460D+00*SB +0.2319D+00*SB2-0.2622D+00*SB3 | |
22711 | A3= 0.6920D+01-0.3454D+01*SB +0.2027D+01*SB2-0.7626D+00*SB3 | |
22712 | A4= 0.1013D+01+0.1423D+00*SB -0.1798D+00*SB2+0.1872D-01*SB3 | |
22713 | A5=-0.5465D-01+0.2303D+01*SB -0.9584D+00*SB2+0.3098D+00*SB3 | |
22714 | ELSEIF(IPRT .EQ. -1) THEN | |
22715 | A0=Exp(-0.2328D+01-0.3061D+01*SB +0.3620D+01*SB2- | |
22716 | & 0.1602D+01*SB3) | |
22717 | A1=-0.3358D+00+0.3198D+00*SB -0.4210D+00*SB2+0.1571D+00*SB3 | |
22718 | A2= 0.8478D+01-0.3112D+01*SB +0.5243D+01*SB2-0.2255D+01*SB3 | |
22719 | A3= 0.1971D+02+0.3389D+00*SB -0.5268D+01*SB2+0.2099D+01*SB3 | |
22720 | A4= 0.1128D+01-0.4701D+00*SB +0.7779D+00*SB2-0.3506D+00*SB3 | |
22721 | A5=-0.4708D+00+0.3341D+01*SB -0.3375D+01*SB2+0.1353D+01*SB3 | |
22722 | ELSEIF(IPRT .EQ. -2) THEN | |
22723 | A0=Exp(-0.2906D+01-0.1069D+00*SB -0.1055D+01*SB2+ | |
22724 | & 0.2496D+00*SB3) | |
22725 | A1=-0.2875D+00+0.6571D-01*SB -0.1987D-01*SB2-0.1800D-02*SB3 | |
22726 | A2= 0.9854D+01-0.2715D+00*SB -0.7407D+00*SB2+0.2888D+00*SB3 | |
22727 | A3= 0.1583D+02-0.7687D+01*SB +0.3428D+01*SB2-0.3327D+00*SB3 | |
22728 | A4= 0.9763D+00+0.7599D-01*SB -0.2128D+00*SB2+0.6852D-01*SB3 | |
22729 | A5=-0.8444D-02+0.9434D+00*SB +0.4152D+00*SB2-0.1481D+00*SB3 | |
22730 | ELSEIF(IPRT .EQ. -3) THEN | |
22731 | A0=Exp(-0.3780D+01+0.2499D+01*SB -0.4962D+01*SB2+ | |
22732 | & 0.1936D+01*SB3) | |
22733 | A1=-0.2639D+00-0.1575D+00*SB +0.3584D+00*SB2-0.1646D+00*SB3 | |
22734 | A2= 0.8082D+01+0.2794D+01*SB -0.5438D+01*SB2+0.2321D+01*SB3 | |
22735 | A3= 0.1811D+02-0.2000D+02*SB +0.1951D+02*SB2-0.6904D+01*SB3 | |
22736 | A4= 0.9822D+00+0.4972D+00*SB -0.8690D+00*SB2+0.3415D+00*SB3 | |
22737 | A5= 0.1772D+00-0.6078D+00*SB +0.3341D+01*SB2-0.1473D+01*SB3 | |
22738 | ELSEIF(IPRT .EQ. -4) THEN | |
22739 | A0=SB** 0.1122D+01*Exp(-0.4232D+01-0.1808D+01*SB + | |
22740 | & 0.5348D+00*SB2) | |
22741 | A1=-0.2824D+00+0.5846D+00*SB -0.7230D+00*SB2+0.2419D+00*SB3 | |
22742 | A2= 0.5683D+01-0.2948D+01*SB +0.5916D+01*SB2-0.2560D+01*SB3 | |
22743 | A3= 0.2051D+01+0.4795D+01*SB -0.4271D+01*SB2+0.4174D+00*SB3 | |
22744 | A4= 0.1737D+00+0.1717D+01*SB -0.1978D+01*SB2+0.6643D+00*SB3 | |
22745 | A5= 0.8689D+00+0.3500D+01*SB -0.3283D+01*SB2+0.1026D+01*SB3 | |
22746 | ELSEIF(IPRT .EQ. -5) THEN | |
22747 | A0=SB** 0.9906D+00*Exp(-0.1496D+01-0.6576D+01*SB + | |
22748 | & 0.1569D+01*SB2) | |
22749 | A1=-0.2140D+00-0.6419D-01*SB -0.2741D-02*SB2+0.3185D-02*SB3 | |
22750 | A2= 0.5781D+01+0.1049D+00*SB -0.3930D+00*SB2+0.5174D+00*SB3 | |
22751 | A3=-0.9420D+00+0.5511D+00*SB +0.8817D+00*SB2+0.1903D+01*SB3 | |
22752 | A4= 0.2418D-01+0.4232D-01*SB -0.1244D-01*SB2-0.2365D-01*SB3 | |
22753 | A5= 0.7664D+00+0.1794D+01*SB -0.4917D+00*SB2-0.1284D+00*SB3 | |
22754 | ELSEIF(IPRT .EQ. -6) THEN | |
22755 | A0=SB** 0.1000D+01*Exp(-0.8460D+01+0.1154D+01*SB + | |
22756 | & 0.8838D+01*SB2) | |
22757 | A1=-0.4316D-01-0.2976D+00*SB +0.3174D+00*SB2-0.1429D+01*SB3 | |
22758 | A2= 0.4910D+01+0.2273D+01*SB +0.5631D+01*SB2-0.1994D+02*SB3 | |
22759 | A3= 0.1190D+02-0.2000D+02*SB -0.2000D+02*SB2+0.1292D+02*SB3 | |
22760 | A4= 0.5771D+00-0.2552D+00*SB +0.7510D+00*SB2+0.6923D+00*SB3 | |
22761 | A5= 0.4402D+01-0.1627D+01*SB -0.2085D+01*SB2-0.6737D+01*SB3 | |
22762 | ENDIF | |
22763 | ||
22764 | C...Expansion for CTEQ3D. | |
22765 | ELSEIF(ISET .EQ. 3) THEN | |
22766 | IF(IPRT .EQ. 2) THEN | |
22767 | A0=Exp( 0.2148D+00+0.5814D-01*SB +0.2734D+00*SB2- | |
22768 | & 0.2902D+00*SB3) | |
22769 | A1= 0.4810D+00+0.1657D-01*SB -0.3800D-01*SB2+0.3125D-01*SB3 | |
22770 | A2= 0.3509D+01+0.3923D+00*SB +0.4010D+00*SB2-0.1932D+00*SB3 | |
22771 | A3= 0.7055D+01-0.6552D+01*SB +0.3466D+01*SB2-0.5657D+00*SB3 | |
22772 | A4= 0.1061D+01-0.3453D+00*SB +0.4089D+00*SB2-0.1817D+00*SB3 | |
22773 | A5= 0.8687D-01+0.2548D+00*SB -0.2967D+00*SB2+0.2647D+00*SB3 | |
22774 | ELSEIF(IPRT .EQ. 1) THEN | |
22775 | A0=Exp( 0.3961D+00+0.4914D+00*SB -0.1728D+01*SB2+ | |
22776 | & 0.7257D+00*SB3) | |
22777 | A1= 0.4162D+00-0.1419D+00*SB +0.3680D+00*SB2-0.1618D+00*SB3 | |
22778 | A2= 0.3248D+01+0.3028D+01*SB -0.4307D+01*SB2+0.1920D+01*SB3 | |
22779 | A3=-0.1100D+01+0.2184D+01*SB -0.3820D+01*SB2+0.1717D+01*SB3 | |
22780 | A4= 0.2082D+01-0.2756D+00*SB +0.3043D+00*SB2-0.1260D+00*SB3 | |
22781 | A5=-0.4822D+00-0.5706D+00*SB +0.2243D+01*SB2-0.9760D+00*SB3 | |
22782 | ELSEIF(IPRT .EQ. 0) THEN | |
22783 | A0=Exp(-0.4665D+00-0.7554D+00*SB -0.3323D+00*SB2- | |
22784 | & 0.2734D-04*SB3) | |
22785 | A1=-0.3359D+00+0.2395D+00*SB -0.2377D+00*SB2+0.7059D-01*SB3 | |
22786 | A2= 0.5451D+01+0.6086D+00*SB +0.8606D-01*SB2-0.1425D+00*SB3 | |
22787 | A3= 0.1026D+02-0.9352D+01*SB +0.4879D+01*SB2-0.1150D+01*SB3 | |
22788 | A4= 0.9935D+00-0.5017D-01*SB -0.1707D-01*SB2-0.1464D-02*SB3 | |
22789 | A5=-0.4160D-01+0.2305D+01*SB -0.1063D+01*SB2+0.3211D+00*SB3 | |
22790 | ELSEIF(IPRT .EQ. -1) THEN | |
22791 | A0=Exp(-0.2714D+01-0.2868D+01*SB +0.3700D+01*SB2- | |
22792 | & 0.1671D+01*SB3) | |
22793 | A1=-0.3893D+00+0.3341D+00*SB -0.3897D+00*SB2+0.1420D+00*SB3 | |
22794 | A2= 0.8359D+01-0.3267D+01*SB +0.5327D+01*SB2-0.2245D+01*SB3 | |
22795 | A3= 0.2359D+02-0.5669D+01*SB -0.4602D+01*SB2+0.3153D+01*SB3 | |
22796 | A4= 0.1106D+01-0.4745D+00*SB +0.7739D+00*SB2-0.3417D+00*SB3 | |
22797 | A5=-0.5557D+00+0.3433D+01*SB -0.3390D+01*SB2+0.1354D+01*SB3 | |
22798 | ELSEIF(IPRT .EQ. -2) THEN | |
22799 | A0=Exp(-0.3323D+01+0.2296D+00*SB -0.1109D+01*SB2+ | |
22800 | & 0.2223D+00*SB3) | |
22801 | A1=-0.3410D+00+0.8847D-01*SB -0.1111D-01*SB2-0.5927D-02*SB3 | |
22802 | A2= 0.9753D+01-0.5182D+00*SB -0.4670D+00*SB2+0.1921D+00*SB3 | |
22803 | A3= 0.1977D+02-0.1600D+02*SB +0.9481D+01*SB2-0.1864D+01*SB3 | |
22804 | A4= 0.9818D+00+0.2839D-02*SB -0.1188D+00*SB2+0.3584D-01*SB3 | |
22805 | A5=-0.7934D-01+0.1004D+01*SB +0.3704D+00*SB2-0.1220D+00*SB3 | |
22806 | ELSEIF(IPRT .EQ. -3) THEN | |
22807 | A0=Exp(-0.3985D+01+0.2855D+01*SB -0.5208D+01*SB2+ | |
22808 | & 0.1937D+01*SB3) | |
22809 | A1=-0.3337D+00-0.1150D+00*SB +0.3691D+00*SB2-0.1709D+00*SB3 | |
22810 | A2= 0.7968D+01+0.3641D+01*SB -0.6599D+01*SB2+0.2642D+01*SB3 | |
22811 | A3= 0.1873D+02-0.1999D+02*SB +0.1734D+02*SB2-0.5813D+01*SB3 | |
22812 | A4= 0.9731D+00+0.5082D+00*SB -0.8780D+00*SB2+0.3231D+00*SB3 | |
22813 | A5=-0.5542D-01-0.4189D+00*SB +0.3309D+01*SB2-0.1439D+01*SB3 | |
22814 | ELSEIF(IPRT .EQ. -4) THEN | |
22815 | A0=SB** 0.1105D+01*Exp(-0.3952D+01-0.1901D+01*SB + | |
22816 | & 0.5137D+00*SB2) | |
22817 | A1=-0.3543D+00+0.6055D+00*SB -0.6941D+00*SB2+0.2278D+00*SB3 | |
22818 | A2= 0.5955D+01-0.2629D+01*SB +0.5337D+01*SB2-0.2300D+01*SB3 | |
22819 | A3= 0.1933D+01+0.4882D+01*SB -0.3810D+01*SB2+0.2290D+00*SB3 | |
22820 | A4= 0.1806D+00+0.1655D+01*SB -0.1893D+01*SB2+0.6395D+00*SB3 | |
22821 | A5= 0.4790D+00+0.3612D+01*SB -0.3152D+01*SB2+0.9684D+00*SB3 | |
22822 | ELSEIF(IPRT .EQ. -5) THEN | |
22823 | A0=SB** 0.9818D+00*Exp(-0.1825D+01-0.7464D+01*SB + | |
22824 | & 0.2143D+01*SB2) | |
22825 | A1=-0.2604D+00-0.1400D+00*SB +0.1702D+00*SB2-0.8476D-01*SB3 | |
22826 | A2= 0.6005D+01+0.6275D+00*SB -0.2535D+01*SB2+0.2219D+01*SB3 | |
22827 | A3=-0.9067D+00+0.1149D+01*SB +0.1974D+01*SB2+0.4716D+01*SB3 | |
22828 | A4= 0.3915D-01+0.5945D-01*SB -0.9844D-01*SB2+0.2783D-01*SB3 | |
22829 | A5= 0.5500D+00+0.1994D+01*SB -0.6727D+00*SB2-0.1510D+00*SB3 | |
22830 | ELSEIF(IPRT .EQ. -6) THEN | |
22831 | A0=SB** 0.1002D+01*Exp(-0.8553D+01+0.3793D+00*SB + | |
22832 | & 0.9998D+01*SB2) | |
22833 | A1=-0.5870D-01-0.2792D+00*SB +0.6526D+00*SB2-0.1984D+01*SB3 | |
22834 | A2= 0.4716D+01+0.4473D+00*SB +0.1128D+02*SB2-0.1937D+02*SB3 | |
22835 | A3= 0.1289D+02-0.1742D+02*SB -0.1983D+02*SB2-0.9274D+00*SB3 | |
22836 | A4= 0.5647D+00-0.2732D+00*SB +0.1074D+01*SB2+0.5981D+00*SB3 | |
22837 | A5= 0.4390D+01-0.1262D+01*SB -0.9026D+00*SB2-0.9394D+01*SB3 | |
22838 | ENDIF | |
22839 | ENDIF | |
22840 | ||
22841 | C...Calculation of x * f(x, Q). | |
22842 | PYCTEQ = MAX(0D0, A0 *(X**A1) *((1D0-X)**A2) *(1D0+A3*(X**A4)) | |
22843 | & *(LOG(1D0+1D0/X))**A5 ) | |
22844 | ||
22845 | RETURN | |
22846 | END | |
22847 | ||
22848 | C********************************************************************* | |
22849 | ||
22850 | C...PYGRVL | |
22851 | C...Gives the GRV 94 L (leading order) parton distribution function set | |
22852 | C...in parametrized form. | |
22853 | C...Authors: M. Glueck, E. Reya and A. Vogt. | |
22854 | ||
22855 | SUBROUTINE PYGRVL (X, Q2, UV, DV, DEL, UDB, SB, CHM, BOT, GL) | |
22856 | ||
22857 | C...Double precision declaration. | |
22858 | IMPLICIT DOUBLE PRECISION (A - Z) | |
22859 | ||
22860 | C...Common expressions. | |
22861 | MU2 = 0.23D0 | |
22862 | LAM2 = 0.2322D0 * 0.2322D0 | |
22863 | S = LOG (LOG(Q2/LAM2) / LOG(MU2/LAM2)) | |
22864 | DS = SQRT (S) | |
22865 | S2 = S * S | |
22866 | S3 = S2 * S | |
22867 | ||
22868 | C...uv : | |
22869 | NU = 2.284D0 + 0.802D0 * S + 0.055D0 * S2 | |
22870 | AKU = 0.590D0 - 0.024D0 * S | |
22871 | BKU = 0.131D0 + 0.063D0 * S | |
22872 | AU = -0.449D0 - 0.138D0 * S - 0.076D0 * S2 | |
22873 | BU = 0.213D0 + 2.669D0 * S - 0.728D0 * S2 | |
22874 | CU = 8.854D0 - 9.135D0 * S + 1.979D0 * S2 | |
22875 | DU = 2.997D0 + 0.753D0 * S - 0.076D0 * S2 | |
22876 | UV = PYGRVV (X, NU, AKU, BKU, AU, BU, CU, DU) | |
22877 | ||
22878 | C...dv : | |
22879 | ND = 0.371D0 + 0.083D0 * S + 0.039D0 * S2 | |
22880 | AKD = 0.376D0 | |
22881 | BKD = 0.486D0 + 0.062D0 * S | |
22882 | AD = -0.509D0 + 3.310D0 * S - 1.248D0 * S2 | |
22883 | BD = 12.41D0 - 10.52D0 * S + 2.267D0 * S2 | |
22884 | CD = 6.373D0 - 6.208D0 * S + 1.418D0 * S2 | |
22885 | DD = 3.691D0 + 0.799D0 * S - 0.071D0 * S2 | |
22886 | DV = PYGRVV (X, ND, AKD, BKD, AD, BD, CD, DD) | |
22887 | ||
22888 | C...del : | |
22889 | NE = 0.082D0 + 0.014D0 * S + 0.008D0 * S2 | |
22890 | AKE = 0.409D0 - 0.005D0 * S | |
22891 | BKE = 0.799D0 + 0.071D0 * S | |
22892 | AE = -38.07D0 + 36.13D0 * S - 0.656D0 * S2 | |
22893 | BE = 90.31D0 - 74.15D0 * S + 7.645D0 * S2 | |
22894 | CE = 0.0D0 | |
22895 | DE = 7.486D0 + 1.217D0 * S - 0.159D0 * S2 | |
22896 | DEL = PYGRVV (X, NE, AKE, BKE, AE, BE, CE, DE) | |
22897 | ||
22898 | C...udb : | |
22899 | ALX = 1.451D0 | |
22900 | BEX = 0.271D0 | |
22901 | AKX = 0.410D0 - 0.232D0 * S | |
22902 | BKX = 0.534D0 - 0.457D0 * S | |
22903 | AGX = 0.890D0 - 0.140D0 * S | |
22904 | BGX = -0.981D0 | |
22905 | CX = 0.320D0 + 0.683D0 * S | |
22906 | DX = 4.752D0 + 1.164D0 * S + 0.286D0 * S2 | |
22907 | EX = 4.119D0 + 1.713D0 * S | |
22908 | ESX = 0.682D0 + 2.978D0 * S | |
22909 | UDB = PYGRVW (X, S, ALX, BEX, AKX, BKX, AGX, BGX, CX, | |
22910 | & DX, EX, ESX) | |
22911 | ||
22912 | C...sb : | |
22913 | STS = 0D0 | |
22914 | ALS = 0.914D0 | |
22915 | BES = 0.577D0 | |
22916 | AKS = 1.798D0 - 0.596D0 * S | |
22917 | AS = -5.548D0 + 3.669D0 * DS - 0.616D0 * S | |
22918 | BS = 18.92D0 - 16.73D0 * DS + 5.168D0 * S | |
22919 | DST = 6.379D0 - 0.350D0 * S + 0.142D0 * S2 | |
22920 | EST = 3.981D0 + 1.638D0 * S | |
22921 | ESS = 6.402D0 | |
22922 | SB = PYGRVS (X, S, STS, ALS, BES, AKS, AS, BS, DST, EST, ESS) | |
22923 | ||
22924 | C...cb : | |
22925 | STC = 0.888D0 | |
22926 | ALC = 1.01D0 | |
22927 | BEC = 0.37D0 | |
22928 | AKC = 0D0 | |
22929 | AC = 0D0 | |
22930 | BC = 4.24D0 - 0.804D0 * S | |
22931 | DCT = 3.46D0 - 1.076D0 * S | |
22932 | ECT = 4.61D0 + 1.49D0 * S | |
22933 | ESC = 2.555D0 + 1.961D0 * S | |
22934 | CHM = PYGRVS (X, S, STC, ALC, BEC, AKC, AC, BC, DCT, ECT, ESC) | |
22935 | ||
22936 | C...bb : | |
22937 | STB = 1.351D0 | |
22938 | ALB = 1.00D0 | |
22939 | BEB = 0.51D0 | |
22940 | AKB = 0D0 | |
22941 | AB = 0D0 | |
22942 | BB = 1.848D0 | |
22943 | DBT = 2.929D0 + 1.396D0 * S | |
22944 | EBT = 4.71D0 + 1.514D0 * S | |
22945 | ESB = 4.02D0 + 1.239D0 * S | |
22946 | BOT = PYGRVS (X, S, STB, ALB, BEB, AKB, AB, BB, DBT, EBT, ESB) | |
22947 | ||
22948 | C...gl : | |
22949 | ALG = 0.524D0 | |
22950 | BEG = 1.088D0 | |
22951 | AKG = 1.742D0 - 0.930D0 * S | |
22952 | BKG = - 0.399D0 * S2 | |
22953 | AG = 7.486D0 - 2.185D0 * S | |
22954 | BG = 16.69D0 - 22.74D0 * S + 5.779D0 * S2 | |
22955 | CG = -25.59D0 + 29.71D0 * S - 7.296D0 * S2 | |
22956 | DG = 2.792D0 + 2.215D0 * S + 0.422D0 * S2 - 0.104D0 * S3 | |
22957 | EG = 0.807D0 + 2.005D0 * S | |
22958 | ESG = 3.841D0 + 0.316D0 * S | |
22959 | GL = PYGRVW (X, S, ALG, BEG, AKG, BKG, AG, BG, CG, | |
22960 | & DG, EG, ESG) | |
22961 | ||
22962 | RETURN | |
22963 | END | |
22964 | ||
22965 | C********************************************************************* | |
22966 | ||
22967 | C...PYGRVM | |
22968 | C...Gives the GRV 94 M (MSbar) parton distribution function set | |
22969 | C...in parametrized form. | |
22970 | C...Authors: M. Glueck, E. Reya and A. Vogt. | |
22971 | ||
22972 | SUBROUTINE PYGRVM (X, Q2, UV, DV, DEL, UDB, SB, CHM, BOT, GL) | |
22973 | ||
22974 | C...Double precision declaration. | |
22975 | IMPLICIT DOUBLE PRECISION (A - Z) | |
22976 | ||
22977 | C...Common expressions. | |
22978 | MU2 = 0.34D0 | |
22979 | LAM2 = 0.248D0 * 0.248D0 | |
22980 | S = LOG (LOG(Q2/LAM2) / LOG(MU2/LAM2)) | |
22981 | DS = SQRT (S) | |
22982 | S2 = S * S | |
22983 | S3 = S2 * S | |
22984 | ||
22985 | C...uv : | |
22986 | NU = 1.304D0 + 0.863D0 * S | |
22987 | AKU = 0.558D0 - 0.020D0 * S | |
22988 | BKU = 0.183D0 * S | |
22989 | AU = -0.113D0 + 0.283D0 * S - 0.321D0 * S2 | |
22990 | BU = 6.843D0 - 5.089D0 * S + 2.647D0 * S2 - 0.527D0 * S3 | |
22991 | CU = 7.771D0 - 10.09D0 * S + 2.630D0 * S2 | |
22992 | DU = 3.315D0 + 1.145D0 * S - 0.583D0 * S2 + 0.154D0 * S3 | |
22993 | UV = PYGRVV (X, NU, AKU, BKU, AU, BU, CU, DU) | |
22994 | ||
22995 | C...dv : | |
22996 | ND = 0.102D0 - 0.017D0 * S + 0.005D0 * S2 | |
22997 | AKD = 0.270D0 - 0.019D0 * S | |
22998 | BKD = 0.260D0 | |
22999 | AD = 2.393D0 + 6.228D0 * S - 0.881D0 * S2 | |
23000 | BD = 46.06D0 + 4.673D0 * S - 14.98D0 * S2 + 1.331D0 * S3 | |
23001 | CD = 17.83D0 - 53.47D0 * S + 21.24D0 * S2 | |
23002 | DD = 4.081D0 + 0.976D0 * S - 0.485D0 * S2 + 0.152D0 * S3 | |
23003 | DV = PYGRVV (X, ND, AKD, BKD, AD, BD, CD, DD) | |
23004 | ||
23005 | C...del : | |
23006 | NE = 0.070D0 + 0.042D0 * S - 0.011D0 * S2 + 0.004D0 * S3 | |
23007 | AKE = 0.409D0 - 0.007D0 * S | |
23008 | BKE = 0.782D0 + 0.082D0 * S | |
23009 | AE = -29.65D0 + 26.49D0 * S + 5.429D0 * S2 | |
23010 | BE = 90.20D0 - 74.97D0 * S + 4.526D0 * S2 | |
23011 | CE = 0.0D0 | |
23012 | DE = 8.122D0 + 2.120D0 * S - 1.088D0 * S2 + 0.231D0 * S3 | |
23013 | DEL = PYGRVV (X, NE, AKE, BKE, AE, BE, CE, DE) | |
23014 | ||
23015 | C...udb : | |
23016 | ALX = 0.877D0 | |
23017 | BEX = 0.561D0 | |
23018 | AKX = 0.275D0 | |
23019 | BKX = 0.0D0 | |
23020 | AGX = 0.997D0 | |
23021 | BGX = 3.210D0 - 1.866D0 * S | |
23022 | CX = 7.300D0 | |
23023 | DX = 9.010D0 + 0.896D0 * DS + 0.222D0 * S2 | |
23024 | EX = 3.077D0 + 1.446D0 * S | |
23025 | ESX = 3.173D0 - 2.445D0 * DS + 2.207D0 * S | |
23026 | UDB = PYGRVW (X, S, ALX, BEX, AKX, BKX, AGX, BGX, CX, | |
23027 | & DX, EX, ESX) | |
23028 | ||
23029 | C...sb : | |
23030 | STS = 0D0 | |
23031 | ALS = 0.756D0 | |
23032 | BES = 0.216D0 | |
23033 | AKS = 1.690D0 + 0.650D0 * DS - 0.922D0 * S | |
23034 | AS = -4.329D0 + 1.131D0 * S | |
23035 | BS = 9.568D0 - 1.744D0 * S | |
23036 | DST = 9.377D0 + 1.088D0 * DS - 1.320D0 * S + 0.130D0 * S2 | |
23037 | EST = 3.031D0 + 1.639D0 * S | |
23038 | ESS = 5.837D0 + 0.815D0 * S | |
23039 | SB = PYGRVS (X, S, STS, ALS, BES, AKS, AS, BS, DST, EST, ESS) | |
23040 | ||
23041 | C...cb : | |
23042 | STC = 0.820D0 | |
23043 | ALC = 0.98D0 | |
23044 | BEC = 0D0 | |
23045 | AKC = -0.625D0 - 0.523D0 * S | |
23046 | AC = 0D0 | |
23047 | BC = 1.896D0 + 1.616D0 * S | |
23048 | DCT = 4.12D0 + 0.683D0 * S | |
23049 | ECT = 4.36D0 + 1.328D0 * S | |
23050 | ESC = 0.677D0 + 0.679D0 * S | |
23051 | CHM = PYGRVS (X, S, STC, ALC, BEC, AKC, AC, BC, DCT, ECT, ESC) | |
23052 | ||
23053 | C...bb : | |
23054 | STB = 1.297D0 | |
23055 | ALB = 0.99D0 | |
23056 | BEB = 0D0 | |
23057 | AKB = - 0.193D0 * S | |
23058 | AB = 0D0 | |
23059 | BB = 0D0 | |
23060 | DBT = 3.447D0 + 0.927D0 * S | |
23061 | EBT = 4.68D0 + 1.259D0 * S | |
23062 | ESB = 1.892D0 + 2.199D0 * S | |
23063 | BOT = PYGRVS (X, S, STB, ALB, BEB, AKB, AB, BB, DBT, EBT, ESB) | |
23064 | ||
23065 | C...gl : | |
23066 | ALG = 1.014D0 | |
23067 | BEG = 1.738D0 | |
23068 | AKG = 1.724D0 + 0.157D0 * S | |
23069 | BKG = 0.800D0 + 1.016D0 * S | |
23070 | AG = 7.517D0 - 2.547D0 * S | |
23071 | BG = 34.09D0 - 52.21D0 * DS + 17.47D0 * S | |
23072 | CG = 4.039D0 + 1.491D0 * S | |
23073 | DG = 3.404D0 + 0.830D0 * S | |
23074 | EG = -1.112D0 + 3.438D0 * S - 0.302D0 * S2 | |
23075 | ESG = 3.256D0 - 0.436D0 * S | |
23076 | GL = PYGRVW (X, S, ALG, BEG, AKG, BKG, AG, BG, CG, DG, EG, ESG) | |
23077 | ||
23078 | RETURN | |
23079 | END | |
23080 | ||
23081 | C********************************************************************* | |
23082 | ||
23083 | C...PYGRVD | |
23084 | C...Gives the GRV 94 D (DIS) parton distribution function set | |
23085 | C...in parametrized form. | |
23086 | C...Authors: M. Glueck, E. Reya and A. Vogt. | |
23087 | ||
23088 | SUBROUTINE PYGRVD (X, Q2, UV, DV, DEL, UDB, SB, CHM, BOT, GL) | |
23089 | ||
23090 | C...Double precision declaration. | |
23091 | IMPLICIT DOUBLE PRECISION (A - Z) | |
23092 | ||
23093 | C...Common expressions. | |
23094 | MU2 = 0.34D0 | |
23095 | LAM2 = 0.248D0 * 0.248D0 | |
23096 | S = LOG (LOG(Q2/LAM2) / LOG(MU2/LAM2)) | |
23097 | DS = SQRT (S) | |
23098 | S2 = S * S | |
23099 | S3 = S2 * S | |
23100 | ||
23101 | C...uv : | |
23102 | NU = 2.484D0 + 0.116D0 * S + 0.093D0 * S2 | |
23103 | AKU = 0.563D0 - 0.025D0 * S | |
23104 | BKU = 0.054D0 + 0.154D0 * S | |
23105 | AU = -0.326D0 - 0.058D0 * S - 0.135D0 * S2 | |
23106 | BU = -3.322D0 + 8.259D0 * S - 3.119D0 * S2 + 0.291D0 * S3 | |
23107 | CU = 11.52D0 - 12.99D0 * S + 3.161D0 * S2 | |
23108 | DU = 2.808D0 + 1.400D0 * S - 0.557D0 * S2 + 0.119D0 * S3 | |
23109 | UV = PYGRVV (X, NU, AKU, BKU, AU, BU, CU, DU) | |
23110 | ||
23111 | C...dv : | |
23112 | ND = 0.156D0 - 0.017D0 * S | |
23113 | AKD = 0.299D0 - 0.022D0 * S | |
23114 | BKD = 0.259D0 - 0.015D0 * S | |
23115 | AD = 3.445D0 + 1.278D0 * S + 0.326D0 * S2 | |
23116 | BD = -6.934D0 + 37.45D0 * S - 18.95D0 * S2 + 1.463D0 * S3 | |
23117 | CD = 55.45D0 - 69.92D0 * S + 20.78D0 * S2 | |
23118 | DD = 3.577D0 + 1.441D0 * S - 0.683D0 * S2 + 0.179D0 * S3 | |
23119 | DV = PYGRVV (X, ND, AKD, BKD, AD, BD, CD, DD) | |
23120 | ||
23121 | C...del : | |
23122 | NE = 0.099D0 + 0.019D0 * S + 0.002D0 * S2 | |
23123 | AKE = 0.419D0 - 0.013D0 * S | |
23124 | BKE = 1.064D0 - 0.038D0 * S | |
23125 | AE = -44.00D0 + 98.70D0 * S - 14.79D0 * S2 | |
23126 | BE = 28.59D0 - 40.94D0 * S - 13.66D0 * S2 + 2.523D0 * S3 | |
23127 | CE = 84.57D0 - 108.8D0 * S + 31.52D0 * S2 | |
23128 | DE = 7.469D0 + 2.480D0 * S - 0.866D0 * S2 | |
23129 | DEL = PYGRVV (X, NE, AKE, BKE, AE, BE, CE, DE) | |
23130 | ||
23131 | C...udb : | |
23132 | ALX = 1.215D0 | |
23133 | BEX = 0.466D0 | |
23134 | AKX = 0.326D0 + 0.150D0 * S | |
23135 | BKX = 0.956D0 + 0.405D0 * S | |
23136 | AGX = 0.272D0 | |
23137 | BGX = 3.794D0 - 2.359D0 * DS | |
23138 | CX = 2.014D0 | |
23139 | DX = 7.941D0 + 0.534D0 * DS - 0.940D0 * S + 0.410D0 * S2 | |
23140 | EX = 3.049D0 + 1.597D0 * S | |
23141 | ESX = 4.396D0 - 4.594D0 * DS + 3.268D0 * S | |
23142 | UDB = PYGRVW (X, S, ALX, BEX, AKX, BKX, AGX, BGX, CX, | |
23143 | & DX, EX, ESX) | |
23144 | ||
23145 | C...sb : | |
23146 | STS = 0D0 | |
23147 | ALS = 0.175D0 | |
23148 | BES = 0.344D0 | |
23149 | AKS = 1.415D0 - 0.641D0 * DS | |
23150 | AS = 0.580D0 - 9.763D0 * DS + 6.795D0 * S - 0.558D0 * S2 | |
23151 | BS = 5.617D0 + 5.709D0 * DS - 3.972D0 * S | |
23152 | DST = 13.78D0 - 9.581D0 * S + 5.370D0 * S2 - 0.996D0 * S3 | |
23153 | EST = 4.546D0 + 0.372D0 * S2 | |
23154 | ESS = 5.053D0 - 1.070D0 * S + 0.805D0 * S2 | |
23155 | SB = PYGRVS (X, S, STS, ALS, BES, AKS, AS, BS, DST, EST, ESS) | |
23156 | ||
23157 | C...cb : | |
23158 | STC = 0.820D0 | |
23159 | ALC = 0.98D0 | |
23160 | BEC = 0D0 | |
23161 | AKC = -0.625D0 - 0.523D0 * S | |
23162 | AC = 0D0 | |
23163 | BC = 1.896D0 + 1.616D0 * S | |
23164 | DCT = 4.12D0 + 0.683D0 * S | |
23165 | ECT = 4.36D0 + 1.328D0 * S | |
23166 | ESC = 0.677D0 + 0.679D0 * S | |
23167 | CHM = PYGRVS (X, S, STC, ALC, BEC, AKC, AC, BC, DCT, ECT, ESC) | |
23168 | ||
23169 | C...bb : | |
23170 | STB = 1.297D0 | |
23171 | ALB = 0.99D0 | |
23172 | BEB = 0D0 | |
23173 | AKB = - 0.193D0 * S | |
23174 | AB = 0D0 | |
23175 | BB = 0D0 | |
23176 | DBT = 3.447D0 + 0.927D0 * S | |
23177 | EBT = 4.68D0 + 1.259D0 * S | |
23178 | ESB = 1.892D0 + 2.199D0 * S | |
23179 | BOT = PYGRVS (X, S, STB, ALB, BEB, AKB, AB, BB, DBT, EBT, ESB) | |
23180 | ||
23181 | C...gl : | |
23182 | ALG = 1.258D0 | |
23183 | BEG = 1.846D0 | |
23184 | AKG = 2.423D0 | |
23185 | BKG = 2.427D0 + 1.311D0 * S - 0.153D0 * S2 | |
23186 | AG = 25.09D0 - 7.935D0 * S | |
23187 | BG = -14.84D0 - 124.3D0 * DS + 72.18D0 * S | |
23188 | CG = 590.3D0 - 173.8D0 * S | |
23189 | DG = 5.196D0 + 1.857D0 * S | |
23190 | EG = -1.648D0 + 3.988D0 * S - 0.432D0 * S2 | |
23191 | ESG = 3.232D0 - 0.542D0 * S | |
23192 | GL = PYGRVW (X, S, ALG, BEG, AKG, BKG, AG, BG, CG, DG, EG, ESG) | |
23193 | ||
23194 | RETURN | |
23195 | END | |
23196 | ||
23197 | C********************************************************************* | |
23198 | ||
23199 | C...PYGRVV | |
23200 | C...Auxiliary for the GRV 94 parton distribution functions | |
23201 | C...for u and d valence and d-u sea. | |
23202 | C...Authors: M. Glueck, E. Reya and A. Vogt. | |
23203 | ||
23204 | FUNCTION PYGRVV (X, N, AK, BK, A, B, C, D) | |
23205 | ||
23206 | C...Double precision declaration. | |
23207 | IMPLICIT DOUBLE PRECISION (A - Z) | |
23208 | ||
23209 | C...Evaluation. | |
23210 | DX = SQRT (X) | |
23211 | PYGRVV = N * X**AK * (1D0+ A*X**BK + X * (B + C*DX)) * | |
23212 | & (1D0- X)**D | |
23213 | ||
23214 | RETURN | |
23215 | END | |
23216 | ||
23217 | C********************************************************************* | |
23218 | ||
23219 | C...PYGRVW | |
23220 | C...Auxiliary for the GRV 94 parton distribution functions | |
23221 | C...for d+u sea and gluon. | |
23222 | C...Authors: M. Glueck, E. Reya and A. Vogt. | |
23223 | ||
23224 | FUNCTION PYGRVW (X, S, AL, BE, AK, BK, A, B, C, D, E, ES) | |
23225 | ||
23226 | C...Double precision declaration. | |
23227 | IMPLICIT DOUBLE PRECISION (A - Z) | |
23228 | ||
23229 | C...Evaluation. | |
23230 | LX = LOG (1D0/X) | |
23231 | PYGRVW = (X**AK * (A + X * (B + X*C)) * LX**BK + S**AL | |
23232 | & * EXP (-E + SQRT (ES * S**BE * LX))) * (1D0- X)**D | |
23233 | ||
23234 | RETURN | |
23235 | END | |
23236 | ||
23237 | C********************************************************************* | |
23238 | ||
23239 | C...PYGRVS | |
23240 | C...Auxiliary for the GRV 94 parton distribution functions | |
23241 | C...for s, c and b sea. | |
23242 | C...Authors: M. Glueck, E. Reya and A. Vogt. | |
23243 | ||
23244 | FUNCTION PYGRVS (X, S, STH, AL, BE, AK, AG, B, D, E, ES) | |
23245 | ||
23246 | C...Double precision declaration. | |
23247 | IMPLICIT DOUBLE PRECISION (A - Z) | |
23248 | ||
23249 | C...Evaluation. | |
23250 | IF(S.LE.STH) THEN | |
23251 | PYGRVS = 0D0 | |
23252 | ELSE | |
23253 | DX = SQRT (X) | |
23254 | LX = LOG (1D0/X) | |
23255 | PYGRVS = (S - STH)**AL / LX**AK * (1D0+ AG*DX + B*X) * | |
23256 | & (1D0- X)**D * EXP (-E + SQRT (ES * S**BE * LX)) | |
23257 | ENDIF | |
23258 | ||
23259 | RETURN | |
23260 | END | |
23261 | ||
23262 | C********************************************************************* | |
23263 | ||
23264 | C...PYHFTH | |
23265 | C...Gives threshold attractive/repulsive factor for heavy flavour | |
23266 | C...production. | |
23267 | ||
23268 | FUNCTION PYHFTH(SH,SQM,FRATT) | |
23269 | ||
23270 | C...Double precision and integer declarations. | |
23271 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23272 | INTEGER PYK,PYCHGE,PYCOMP | |
23273 | C...Commonblocks. | |
23274 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
23275 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
23276 | COMMON/PYINT1/MINT(400),VINT(400) | |
23277 | SAVE /PYDAT1/,/PYPARS/,/PYINT1/ | |
23278 | ||
23279 | C...Value for alpha_strong. | |
23280 | IF(MSTP(35).LE.1) THEN | |
23281 | ALSSG=PARP(35) | |
23282 | ELSE | |
23283 | MST115=MSTU(115) | |
23284 | MSTU(115)=MSTP(36) | |
23285 | Q2BN=SQRT(MAX(1D0,SQM*((SQRT(SH)-2D0*SQRT(SQM))**2+ | |
23286 | & PARP(36)**2))) | |
23287 | ALSSG=PYALPS(Q2BN) | |
23288 | MSTU(115)=MST115 | |
23289 | ENDIF | |
23290 | ||
23291 | C...Evaluate attractive and repulsive factors. | |
23292 | XATTR=4D0*PARU(1)*ALSSG/(3D0*SQRT(MAX(1D-20,1D0-4D0*SQM/SH))) | |
23293 | FATTR=XATTR/(1D0-EXP(-MIN(50D0,XATTR))) | |
23294 | XREPU=PARU(1)*ALSSG/(6D0*SQRT(MAX(1D-20,1D0-4D0*SQM/SH))) | |
23295 | FREPU=XREPU/(EXP(MIN(50D0,XREPU))-1D0) | |
23296 | PYHFTH=FRATT*FATTR+(1D0-FRATT)*FREPU | |
23297 | VINT(138)=PYHFTH | |
23298 | ||
23299 | RETURN | |
23300 | END | |
23301 | ||
23302 | C********************************************************************* | |
23303 | ||
23304 | C...PYSPLI | |
23305 | C...Splits a hadron remnant into two (partons or hadron + parton) | |
23306 | C...in case it is more complicated than just a quark or a diquark. | |
23307 | ||
23308 | SUBROUTINE PYSPLI(KF,KFLIN,KFLCH,KFLSP) | |
23309 | ||
23310 | C...Double precision and integer declarations. | |
23311 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23312 | INTEGER PYK,PYCHGE,PYCOMP | |
23313 | C...Commonblocks. | |
23314 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
23315 | COMMON/PYINT1/MINT(400),VINT(400) | |
23316 | SAVE /PYPARS/,/PYINT1/ | |
23317 | C...Local array. | |
23318 | DIMENSION KFL(3) | |
23319 | ||
23320 | C...Preliminaries. Parton composition. | |
23321 | KFA=IABS(KF) | |
23322 | KFS=ISIGN(1,KF) | |
23323 | KFL(1)=MOD(KFA/1000,10) | |
23324 | KFL(2)=MOD(KFA/100,10) | |
23325 | KFL(3)=MOD(KFA/10,10) | |
23326 | IF(KFA.EQ.22.AND.MINT(109).EQ.2) THEN | |
23327 | KFL(2)=INT(1.5D0+PYR(0)) | |
23328 | IF(MINT(105).EQ.333) KFL(2)=3 | |
23329 | IF(MINT(105).EQ.443) KFL(2)=4 | |
23330 | KFL(3)=KFL(2) | |
23331 | ELSEIF((KFA.EQ.111.OR.KFA.EQ.113).AND.PYR(0).GT.0.5D0) THEN | |
23332 | KFL(2)=2 | |
23333 | KFL(3)=2 | |
23334 | ELSEIF(KFA.EQ.223.AND.PYR(0).GT.0.5D0) THEN | |
23335 | KFL(2)=1 | |
23336 | KFL(3)=1 | |
23337 | ENDIF | |
23338 | IF(KFLIN.NE.21.AND.KFLIN.NE.22.AND.KFLIN.NE.23) THEN | |
23339 | KFLR=KFLIN*KFS | |
23340 | ELSE | |
23341 | KFLR=KFLIN | |
23342 | ENDIF | |
23343 | KFLCH=0 | |
23344 | ||
23345 | C...Subdivide lepton. | |
23346 | IF(KFA.GE.11.AND.KFA.LE.18) THEN | |
23347 | IF(KFLR.EQ.KFA) THEN | |
23348 | KFLSP=KFS*22 | |
23349 | ELSEIF(KFLR.EQ.22) THEN | |
23350 | KFLSP=KFA | |
23351 | ELSEIF(KFLR.EQ.-24.AND.MOD(KFA,2).EQ.1) THEN | |
23352 | KFLSP=KFA+1 | |
23353 | ELSEIF(KFLR.EQ.24.AND.MOD(KFA,2).EQ.0) THEN | |
23354 | KFLSP=KFA-1 | |
23355 | ELSEIF(KFLR.EQ.21) THEN | |
23356 | KFLSP=KFA | |
23357 | KFLCH=KFS*21 | |
23358 | ELSE | |
23359 | KFLSP=KFA | |
23360 | KFLCH=-KFLR | |
23361 | ENDIF | |
23362 | ||
23363 | C...Subdivide photon. | |
23364 | ELSEIF(KFA.EQ.22.AND.MINT(109).NE.2) THEN | |
23365 | IF(KFLR.NE.21) THEN | |
23366 | KFLSP=-KFLR | |
23367 | ELSE | |
23368 | RAGR=0.75D0*PYR(0) | |
23369 | KFLSP=1 | |
23370 | IF(RAGR.GT.0.125D0) KFLSP=2 | |
23371 | IF(RAGR.GT.0.625D0) KFLSP=3 | |
23372 | IF(PYR(0).GT.0.5D0) KFLSP=-KFLSP | |
23373 | KFLCH=-KFLSP | |
23374 | ENDIF | |
23375 | ||
23376 | C...Subdivide Reggeon or Pomeron. | |
23377 | ELSEIF(KFA.EQ.28.OR.KFA.EQ.29) THEN | |
23378 | IF(KFLIN.EQ.21) THEN | |
23379 | KFLSP=KFS*21 | |
23380 | ELSE | |
23381 | KFLSP=-KFLIN | |
23382 | ENDIF | |
23383 | ||
23384 | C...Subdivide meson. | |
23385 | ELSEIF(KFL(1).EQ.0) THEN | |
23386 | KFL(2)=KFL(2)*(-1)**KFL(2) | |
23387 | KFL(3)=-KFL(3)*(-1)**IABS(KFL(2)) | |
23388 | IF(KFLR.EQ.KFL(2)) THEN | |
23389 | KFLSP=KFL(3) | |
23390 | ELSEIF(KFLR.EQ.KFL(3)) THEN | |
23391 | KFLSP=KFL(2) | |
23392 | ELSEIF(KFLR.EQ.21.AND.PYR(0).GT.0.5D0) THEN | |
23393 | KFLSP=KFL(2) | |
23394 | KFLCH=KFL(3) | |
23395 | ELSEIF(KFLR.EQ.21) THEN | |
23396 | KFLSP=KFL(3) | |
23397 | KFLCH=KFL(2) | |
23398 | ELSEIF(KFLR*KFL(2).GT.0) THEN | |
23399 | CALL PYKFDI(-KFLR,KFL(2),KFDUMP,KFLCH) | |
23400 | KFLSP=KFL(3) | |
23401 | ELSE | |
23402 | CALL PYKFDI(-KFLR,KFL(3),KFDUMP,KFLCH) | |
23403 | KFLSP=KFL(2) | |
23404 | ENDIF | |
23405 | ||
23406 | C...Subdivide baryon. | |
23407 | ELSE | |
23408 | NAGR=0 | |
23409 | DO 100 J=1,3 | |
23410 | IF(KFLR.EQ.KFL(J)) NAGR=NAGR+1 | |
23411 | 100 CONTINUE | |
23412 | IF(NAGR.GE.1) THEN | |
23413 | RAGR=0.00001D0+(NAGR-0.00002D0)*PYR(0) | |
23414 | IAGR=0 | |
23415 | DO 110 J=1,3 | |
23416 | IF(KFLR.EQ.KFL(J)) RAGR=RAGR-1D0 | |
23417 | IF(IAGR.EQ.0.AND.RAGR.LE.0D0) IAGR=J | |
23418 | 110 CONTINUE | |
23419 | ELSE | |
23420 | IAGR=1.00001D0+2.99998D0*PYR(0) | |
23421 | ENDIF | |
23422 | ID1=1 | |
23423 | IF(IAGR.EQ.1) ID1=2 | |
23424 | IF(IAGR.EQ.1.AND.KFL(3).GT.KFL(2)) ID1=3 | |
23425 | ID2=6-IAGR-ID1 | |
23426 | KSP=3 | |
23427 | IF(MOD(KFA,10).EQ.2.AND.KFL(1).EQ.KFL(2)) THEN | |
23428 | IF(IAGR.NE.3.AND.PYR(0).GT.0.25D0) KSP=1 | |
23429 | ELSEIF(MOD(KFA,10).EQ.2.AND.KFL(2).GE.KFL(3)) THEN | |
23430 | IF(IAGR.NE.1.AND.PYR(0).GT.0.25D0) KSP=1 | |
23431 | ELSEIF(MOD(KFA,10).EQ.2) THEN | |
23432 | IF(IAGR.EQ.1) KSP=1 | |
23433 | IF(IAGR.NE.1.AND.PYR(0).GT.0.75D0) KSP=1 | |
23434 | ENDIF | |
23435 | KFLSP=1000*KFL(ID1)+100*KFL(ID2)+KSP | |
23436 | IF(KFLR.EQ.21) THEN | |
23437 | KFLCH=KFL(IAGR) | |
23438 | ELSEIF(NAGR.EQ.0.AND.KFLR.GT.0) THEN | |
23439 | CALL PYKFDI(-KFLR,KFL(IAGR),KFDUMP,KFLCH) | |
23440 | ELSEIF(NAGR.EQ.0) THEN | |
23441 | CALL PYKFDI(10000+KFLSP,-KFLR,KFDUMP,KFLCH) | |
23442 | KFLSP=KFL(IAGR) | |
23443 | ENDIF | |
23444 | ENDIF | |
23445 | ||
23446 | C...Add on correct sign for result. | |
23447 | KFLCH=KFLCH*KFS | |
23448 | KFLSP=KFLSP*KFS | |
23449 | ||
23450 | RETURN | |
23451 | END | |
23452 | ||
23453 | C********************************************************************* | |
23454 | ||
23455 | C...PYGAMM | |
23456 | C...Gives ordinary Gamma function Gamma(x) for positive, real arguments; | |
23457 | C...see M. Abramowitz, I. A. Stegun: Handbook of Mathematical Functions | |
23458 | C...(Dover, 1965) 6.1.36. | |
23459 | ||
23460 | FUNCTION PYGAMM(X) | |
23461 | ||
23462 | C...Double precision and integer declarations. | |
23463 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23464 | INTEGER PYK,PYCHGE,PYCOMP | |
23465 | C...Local array and data. | |
23466 | DIMENSION B(8) | |
23467 | DATA B/-0.577191652D0,0.988205891D0,-0.897056937D0,0.918206857D0, | |
23468 | &-0.756704078D0,0.482199394D0,-0.193527818D0,0.035868343D0/ | |
23469 | ||
23470 | NX=INT(X) | |
23471 | DX=X-NX | |
23472 | ||
23473 | PYGAMM=1D0 | |
23474 | DXP=1D0 | |
23475 | DO 100 I=1,8 | |
23476 | DXP=DXP*DX | |
23477 | PYGAMM=PYGAMM+B(I)*DXP | |
23478 | 100 CONTINUE | |
23479 | IF(X.LT.1D0) THEN | |
23480 | PYGAMM=PYGAMM/X | |
23481 | ELSE | |
23482 | DO 110 IX=1,NX-1 | |
23483 | PYGAMM=(X-IX)*PYGAMM | |
23484 | 110 CONTINUE | |
23485 | ENDIF | |
23486 | ||
23487 | RETURN | |
23488 | END | |
23489 | ||
23490 | C*********************************************************************** | |
23491 | ||
23492 | C...PYWAUX | |
23493 | C...Calculates real and imaginary parts of the auxiliary functions W1 | |
23494 | C...and W2; see R. K. Ellis, I. Hinchliffe, M. Soldate and J. J. van | |
23495 | C...der Bij, Nucl. Phys. B297 (1988) 221. | |
23496 | ||
23497 | SUBROUTINE PYWAUX(IAUX,EPS,WRE,WIM) | |
23498 | ||
23499 | C...Double precision and integer declarations. | |
23500 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23501 | INTEGER PYK,PYCHGE,PYCOMP | |
23502 | C...Commonblocks. | |
23503 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
23504 | SAVE /PYDAT1/ | |
23505 | ||
23506 | ASINH(X)=LOG(X+SQRT(X**2+1D0)) | |
23507 | ACOSH(X)=LOG(X+SQRT(X**2-1D0)) | |
23508 | ||
23509 | IF(EPS.LT.0D0) THEN | |
23510 | IF(IAUX.EQ.1) WRE=2D0*SQRT(1D0-EPS)*ASINH(SQRT(-1D0/EPS)) | |
23511 | IF(IAUX.EQ.2) WRE=4D0*(ASINH(SQRT(-1D0/EPS)))**2 | |
23512 | WIM=0D0 | |
23513 | ELSEIF(EPS.LT.1D0) THEN | |
23514 | IF(IAUX.EQ.1) WRE=2D0*SQRT(1D0-EPS)*ACOSH(SQRT(1D0/EPS)) | |
23515 | IF(IAUX.EQ.2) WRE=4D0*(ACOSH(SQRT(1D0/EPS)))**2-PARU(1)**2 | |
23516 | IF(IAUX.EQ.1) WIM=-PARU(1)*SQRT(1D0-EPS) | |
23517 | IF(IAUX.EQ.2) WIM=-4D0*PARU(1)*ACOSH(SQRT(1D0/EPS)) | |
23518 | ELSE | |
23519 | IF(IAUX.EQ.1) WRE=2D0*SQRT(EPS-1D0)*ASIN(SQRT(1D0/EPS)) | |
23520 | IF(IAUX.EQ.2) WRE=-4D0*(ASIN(SQRT(1D0/EPS)))**2 | |
23521 | WIM=0D0 | |
23522 | ENDIF | |
23523 | ||
23524 | RETURN | |
23525 | END | |
23526 | ||
23527 | C*********************************************************************** | |
23528 | ||
23529 | C...PYI3AU | |
23530 | C...Calculates real and imaginary parts of the auxiliary function I3; | |
23531 | C...see R. K. Ellis, I. Hinchliffe, M. Soldate and J. J. van der Bij, | |
23532 | C...Nucl. Phys. B297 (1988) 221. | |
23533 | ||
23534 | SUBROUTINE PYI3AU(EPS,RAT,Y3RE,Y3IM) | |
23535 | ||
23536 | C...Double precision and integer declarations. | |
23537 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23538 | INTEGER PYK,PYCHGE,PYCOMP | |
23539 | C...Commonblocks. | |
23540 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
23541 | SAVE /PYDAT1/ | |
23542 | ||
23543 | BE=0.5D0*(1D0+SQRT(1D0+RAT*EPS)) | |
23544 | IF(EPS.LT.1D0) GA=0.5D0*(1D0+SQRT(1D0-EPS)) | |
23545 | ||
23546 | IF(EPS.LT.0D0) THEN | |
23547 | IF(ABS(EPS).LT.1.D-4.AND.ABS(RAT*EPS).LT.1.D-4) THEN | |
23548 | F3RE=PYSPEN(-0.25D0*EPS/(1D0+0.25D0*(RAT-1D0)*EPS),0D0,1)- | |
23549 | & PYSPEN((1D0-0.25D0*EPS)/(1D0+0.25D0*(RAT-1D0)*EPS),0D0,1)+ | |
23550 | & PYSPEN(0.25D0*(RAT+1D0)*EPS/(1D0+0.25D0*RAT*EPS),0D0,1)- | |
23551 | & PYSPEN((RAT+1D0)/RAT,0D0,1)+0.5D0*(LOG(1D0+0.25D0*RAT*EPS)**2- | |
23552 | & LOG(0.25D0*RAT*EPS)**2)+LOG(1D0-0.25D0*EPS)* | |
23553 | & LOG((1D0+0.25D0*(RAT-1D0)*EPS)/(1D0+0.25D0*RAT*EPS))+ | |
23554 | & LOG(-0.25D0*EPS)*LOG(0.25D0*RAT*EPS/(1D0+0.25D0*(RAT-1D0)* | |
23555 | & EPS)) | |
23556 | ELSEIF(ABS(EPS).LT.1.D-4.AND.ABS(RAT*EPS).GE.1.D-4) THEN | |
23557 | F3RE=PYSPEN(-0.25D0*EPS/(BE-0.25D0*EPS),0D0,1)- | |
23558 | & PYSPEN((1D0-0.25D0*EPS)/(BE-0.25D0*EPS),0D0,1)+ | |
23559 | & PYSPEN((BE-1D0+0.25D0*EPS)/BE,0D0,1)- | |
23560 | & PYSPEN((BE-1D0+0.25D0*EPS)/(BE-1D0),0D0,1)+ | |
23561 | & 0.5D0*(LOG(BE)**2-LOG(BE-1D0)**2)+ | |
23562 | & LOG(1D0-0.25D0*EPS)*LOG((BE-0.25D0*EPS)/BE)+ | |
23563 | & LOG(-0.25D0*EPS)*LOG((BE-1D0)/(BE-0.25D0*EPS)) | |
23564 | ELSEIF(ABS(EPS).GE.1.D-4.AND.ABS(RAT*EPS).LT.1.D-4) THEN | |
23565 | F3RE=PYSPEN((GA-1D0)/(GA+0.25D0*RAT*EPS),0D0,1)- | |
23566 | & PYSPEN(GA/(GA+0.25D0*RAT*EPS),0D0,1)+ | |
23567 | & PYSPEN((1D0+0.25D0*RAT*EPS-GA)/(1D0+0.25D0*RAT*EPS),0D0,1)- | |
23568 | & PYSPEN((1D0+0.25D0*RAT*EPS-GA)/(0.25D0*RAT*EPS),0D0,1)+ | |
23569 | & 0.5D0*(LOG(1D0+0.25D0*RAT*EPS)**2-LOG(0.25D0*RAT*EPS)**2)+ | |
23570 | & LOG(GA)*LOG((GA+0.25D0*RAT*EPS)/(1D0+0.25D0*RAT*EPS))+ | |
23571 | & LOG(GA-1D0)*LOG(0.25D0*RAT*EPS/(GA+0.25D0*RAT*EPS)) | |
23572 | ELSE | |
23573 | F3RE=PYSPEN((GA-1D0)/(GA+BE-1D0),0D0,1)- | |
23574 | & PYSPEN(GA/(GA+BE-1D0),0D0,1)+PYSPEN((BE-GA)/BE,0D0,1)- | |
23575 | & PYSPEN((BE-GA)/(BE-1D0),0D0,1)+0.5D0*(LOG(BE)**2- | |
23576 | & LOG(BE-1D0)**2)+LOG(GA)*LOG((GA+BE-1D0)/BE)+ | |
23577 | & LOG(GA-1D0)*LOG((BE-1D0)/(GA+BE-1D0)) | |
23578 | ENDIF | |
23579 | F3IM=0D0 | |
23580 | ELSEIF(EPS.LT.1D0) THEN | |
23581 | IF(ABS(EPS).LT.1.D-4.AND.ABS(RAT*EPS).LT.1.D-4) THEN | |
23582 | F3RE=PYSPEN(-0.25D0*EPS/(1D0+0.25D0*(RAT-1D0)*EPS),0D0,1)- | |
23583 | & PYSPEN((1D0-0.25D0*EPS)/(1D0+0.25D0*(RAT-1D0)*EPS),0D0,1)+ | |
23584 | & PYSPEN((1D0-0.25D0*EPS)/(-0.25D0*(RAT+1D0)*EPS),0D0,1)- | |
23585 | & PYSPEN(1D0/(RAT+1D0),0D0,1)+LOG((1D0-0.25D0*EPS)/ | |
23586 | & (0.25D0*EPS))*LOG((1D0+0.25D0*(RAT-1D0)*EPS)/ | |
23587 | & (0.25D0*(RAT+1D0)*EPS)) | |
23588 | F3IM=-PARU(1)*LOG((1D0+0.25D0*(RAT-1D0)*EPS)/ | |
23589 | & (0.25D0*(RAT+1D0)*EPS)) | |
23590 | ELSEIF(ABS(EPS).LT.1.D-4.AND.ABS(RAT*EPS).GE.1.D-4) THEN | |
23591 | F3RE=PYSPEN(-0.25D0*EPS/(BE-0.25D0*EPS),0D0,1)- | |
23592 | & PYSPEN((1D0-0.25D0*EPS)/(BE-0.25D0*EPS),0D0,1)+ | |
23593 | & PYSPEN((1D0-0.25D0*EPS)/(1D0-0.25D0*EPS-BE),0D0,1)- | |
23594 | & PYSPEN(-0.25D0*EPS/(1D0-0.25D0*EPS-BE),0D0,1)+ | |
23595 | & LOG((1D0-0.25D0*EPS)/(0.25D0*EPS))* | |
23596 | & LOG((BE-0.25D0*EPS)/(BE-1D0+0.25D0*EPS)) | |
23597 | F3IM=-PARU(1)*LOG((BE-0.25D0*EPS)/(BE-1D0+0.25D0*EPS)) | |
23598 | ELSEIF(ABS(EPS).GE.1.D-4.AND.ABS(RAT*EPS).LT.1.D-4) THEN | |
23599 | F3RE=PYSPEN((GA-1D0)/(GA+0.25D0*RAT*EPS),0D0,1)- | |
23600 | & PYSPEN(GA/(GA+0.25D0*RAT*EPS),0D0,1)+ | |
23601 | & PYSPEN(GA/(GA-1D0-0.25D0*RAT*EPS),0D0,1)- | |
23602 | & PYSPEN((GA-1D0)/(GA-1D0-0.25D0*RAT*EPS),0D0,1)+ | |
23603 | & LOG(GA/(1D0-GA))*LOG((GA+0.25D0*RAT*EPS)/ | |
23604 | & (1D0+0.25D0*RAT*EPS-GA)) | |
23605 | F3IM=-PARU(1)*LOG((GA+0.25D0*RAT*EPS)/ | |
23606 | & (1D0+0.25D0*RAT*EPS-GA)) | |
23607 | ELSE | |
23608 | F3RE=PYSPEN((GA-1D0)/(GA+BE-1D0),0D0,1)- | |
23609 | & PYSPEN(GA/(GA+BE-1D0),0D0,1)+PYSPEN(GA/(GA-BE),0D0,1)- | |
23610 | & PYSPEN((GA-1D0)/(GA-BE),0D0,1)+LOG(GA/(1D0-GA))* | |
23611 | & LOG((GA+BE-1D0)/(BE-GA)) | |
23612 | F3IM=-PARU(1)*LOG((GA+BE-1D0)/(BE-GA)) | |
23613 | ENDIF | |
23614 | ELSE | |
23615 | RSQ=EPS/(EPS-1D0+(2D0*BE-1D0)**2) | |
23616 | RCTHE=RSQ*(1D0-2D0*BE/EPS) | |
23617 | RSTHE=SQRT(MAX(0D0,RSQ-RCTHE**2)) | |
23618 | RCPHI=RSQ*(1D0+2D0*(BE-1D0)/EPS) | |
23619 | RSPHI=SQRT(MAX(0D0,RSQ-RCPHI**2)) | |
23620 | R=SQRT(RSQ) | |
23621 | THE=ACOS(MAX(-0.999999D0,MIN(0.999999D0,RCTHE/R))) | |
23622 | PHI=ACOS(MAX(-0.999999D0,MIN(0.999999D0,RCPHI/R))) | |
23623 | F3RE=PYSPEN(RCTHE,RSTHE,1)+PYSPEN(RCTHE,-RSTHE,1)- | |
23624 | & PYSPEN(RCPHI,RSPHI,1)-PYSPEN(RCPHI,-RSPHI,1)+ | |
23625 | & (PHI-THE)*(PHI+THE-PARU(1)) | |
23626 | F3IM=PYSPEN(RCTHE,RSTHE,2)+PYSPEN(RCTHE,-RSTHE,2)- | |
23627 | & PYSPEN(RCPHI,RSPHI,2)-PYSPEN(RCPHI,-RSPHI,2) | |
23628 | ENDIF | |
23629 | ||
23630 | Y3RE=2D0/(2D0*BE-1D0)*F3RE | |
23631 | Y3IM=2D0/(2D0*BE-1D0)*F3IM | |
23632 | ||
23633 | RETURN | |
23634 | END | |
23635 | ||
23636 | C*********************************************************************** | |
23637 | ||
23638 | C...PYSPEN | |
23639 | C...Calculates real and imaginary part of Spence function; see | |
23640 | C...G. 't Hooft and M. Veltman, Nucl. Phys. B153 (1979) 365. | |
23641 | ||
23642 | FUNCTION PYSPEN(XREIN,XIMIN,IREIM) | |
23643 | ||
23644 | C...Double precision and integer declarations. | |
23645 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23646 | INTEGER PYK,PYCHGE,PYCOMP | |
23647 | C...Commonblocks. | |
23648 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
23649 | SAVE /PYDAT1/ | |
23650 | C...Local array and data. | |
23651 | DIMENSION B(0:14) | |
23652 | DATA B/ | |
23653 | &1.000000D+00, -5.000000D-01, 1.666667D-01, | |
23654 | &0.000000D+00, -3.333333D-02, 0.000000D+00, | |
23655 | &2.380952D-02, 0.000000D+00, -3.333333D-02, | |
23656 | &0.000000D+00, 7.575757D-02, 0.000000D+00, | |
23657 | &-2.531135D-01, 0.000000D+00, 1.166667D+00/ | |
23658 | ||
23659 | XRE=XREIN | |
23660 | XIM=XIMIN | |
23661 | IF(ABS(1D0-XRE).LT.1.D-6.AND.ABS(XIM).LT.1.D-6) THEN | |
23662 | IF(IREIM.EQ.1) PYSPEN=PARU(1)**2/6D0 | |
23663 | IF(IREIM.EQ.2) PYSPEN=0D0 | |
23664 | RETURN | |
23665 | ENDIF | |
23666 | ||
23667 | XMOD=SQRT(XRE**2+XIM**2) | |
23668 | IF(XMOD.LT.1.D-6) THEN | |
23669 | IF(IREIM.EQ.1) PYSPEN=0D0 | |
23670 | IF(IREIM.EQ.2) PYSPEN=0D0 | |
23671 | RETURN | |
23672 | ENDIF | |
23673 | ||
23674 | XARG=SIGN(ACOS(XRE/XMOD),XIM) | |
23675 | SP0RE=0D0 | |
23676 | SP0IM=0D0 | |
23677 | SGN=1D0 | |
23678 | IF(XMOD.GT.1D0) THEN | |
23679 | ALGXRE=LOG(XMOD) | |
23680 | ALGXIM=XARG-SIGN(PARU(1),XARG) | |
23681 | SP0RE=-PARU(1)**2/6D0-(ALGXRE**2-ALGXIM**2)/2D0 | |
23682 | SP0IM=-ALGXRE*ALGXIM | |
23683 | SGN=-1D0 | |
23684 | XMOD=1D0/XMOD | |
23685 | XARG=-XARG | |
23686 | XRE=XMOD*COS(XARG) | |
23687 | XIM=XMOD*SIN(XARG) | |
23688 | ENDIF | |
23689 | IF(XRE.GT.0.5D0) THEN | |
23690 | ALGXRE=LOG(XMOD) | |
23691 | ALGXIM=XARG | |
23692 | XRE=1D0-XRE | |
23693 | XIM=-XIM | |
23694 | XMOD=SQRT(XRE**2+XIM**2) | |
23695 | XARG=SIGN(ACOS(XRE/XMOD),XIM) | |
23696 | ALGYRE=LOG(XMOD) | |
23697 | ALGYIM=XARG | |
23698 | SP0RE=SP0RE+SGN*(PARU(1)**2/6D0-(ALGXRE*ALGYRE-ALGXIM*ALGYIM)) | |
23699 | SP0IM=SP0IM-SGN*(ALGXRE*ALGYIM+ALGXIM*ALGYRE) | |
23700 | SGN=-SGN | |
23701 | ENDIF | |
23702 | ||
23703 | XRE=1D0-XRE | |
23704 | XIM=-XIM | |
23705 | XMOD=SQRT(XRE**2+XIM**2) | |
23706 | XARG=SIGN(ACOS(XRE/XMOD),XIM) | |
23707 | ZRE=-LOG(XMOD) | |
23708 | ZIM=-XARG | |
23709 | ||
23710 | SPRE=0D0 | |
23711 | SPIM=0D0 | |
23712 | SAVERE=1D0 | |
23713 | SAVEIM=0D0 | |
23714 | DO 100 I=0,14 | |
23715 | IF(MAX(ABS(SAVERE),ABS(SAVEIM)).LT.1D-30) GOTO 110 | |
23716 | TERMRE=(SAVERE*ZRE-SAVEIM*ZIM)/DBLE(I+1) | |
23717 | TERMIM=(SAVERE*ZIM+SAVEIM*ZRE)/DBLE(I+1) | |
23718 | SAVERE=TERMRE | |
23719 | SAVEIM=TERMIM | |
23720 | SPRE=SPRE+B(I)*TERMRE | |
23721 | SPIM=SPIM+B(I)*TERMIM | |
23722 | 100 CONTINUE | |
23723 | ||
23724 | 110 IF(IREIM.EQ.1) PYSPEN=SP0RE+SGN*SPRE | |
23725 | IF(IREIM.EQ.2) PYSPEN=SP0IM+SGN*SPIM | |
23726 | ||
23727 | RETURN | |
23728 | END | |
23729 | ||
23730 | C*********************************************************************** | |
23731 | ||
23732 | C...PYQQBH | |
23733 | C...Calculates the matrix element for the processes | |
23734 | C...g + g or q + qbar -> Q + Qbar + H (normally with Q = t). | |
23735 | C...REDUCE output and part of the rest courtesy Z. Kunszt, see | |
23736 | C...Z. Kunszt, Nucl. Phys. B247 (1984) 339. | |
23737 | ||
23738 | SUBROUTINE PYQQBH(WTQQBH) | |
23739 | ||
23740 | C...Double precision and integer declarations. | |
23741 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
23742 | INTEGER PYK,PYCHGE,PYCOMP | |
23743 | C...Commonblocks. | |
23744 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
23745 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
23746 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
23747 | COMMON/PYINT1/MINT(400),VINT(400) | |
23748 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
23749 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYINT1/,/PYINT2/ | |
23750 | C...Local arrays and function. | |
23751 | DIMENSION PP(15,4),CLR(8,8),FM(10,10),RM(8,8),DX(8) | |
23752 | DOT(I,J)=PP(I,4)*PP(J,4)-PP(I,1)*PP(J,1)-PP(I,2)*PP(J,2)- | |
23753 | &PP(I,3)*PP(J,3) | |
23754 | ||
23755 | C...Mass parameters. | |
23756 | WTQQBH=0D0 | |
23757 | ISUB=MINT(1) | |
23758 | SHPR=SQRT(VINT(26))*VINT(1) | |
23759 | PQ=PMAS(PYCOMP(KFPR(ISUB,2)),1) | |
23760 | PH=SQRT(VINT(21))*VINT(1) | |
23761 | SPQ=PQ**2 | |
23762 | SPH=PH**2 | |
23763 | ||
23764 | C...Set up outgoing kinematics: 1=t, 2=tbar, 3=H. | |
23765 | DO 100 I=1,2 | |
23766 | PT=SQRT(MAX(0D0,VINT(197+5*I))) | |
23767 | PP(I,1)=PT*COS(VINT(198+5*I)) | |
23768 | PP(I,2)=PT*SIN(VINT(198+5*I)) | |
23769 | 100 CONTINUE | |
23770 | PP(3,1)=-PP(1,1)-PP(2,1) | |
23771 | PP(3,2)=-PP(1,2)-PP(2,2) | |
23772 | PMS1=SPQ+PP(1,1)**2+PP(1,2)**2 | |
23773 | PMS2=SPQ+PP(2,1)**2+PP(2,2)**2 | |
23774 | PMS3=SPH+PP(3,1)**2+PP(3,2)**2 | |
23775 | PMT3=SQRT(PMS3) | |
23776 | PP(3,3)=PMT3*SINH(VINT(211)) | |
23777 | PP(3,4)=PMT3*COSH(VINT(211)) | |
23778 | PMS12=(SHPR-PP(3,4))**2-PP(3,3)**2 | |
23779 | PP(1,3)=(-PP(3,3)*(PMS12+PMS1-PMS2)+ | |
23780 | &VINT(213)*(SHPR-PP(3,4))*VINT(220))/(2D0*PMS12) | |
23781 | PP(2,3)=-PP(1,3)-PP(3,3) | |
23782 | PP(1,4)=SQRT(PMS1+PP(1,3)**2) | |
23783 | PP(2,4)=SQRT(PMS2+PP(2,3)**2) | |
23784 | ||
23785 | C...Set up incoming kinematics and derived momentum combinations. | |
23786 | DO 110 I=4,5 | |
23787 | PP(I,1)=0D0 | |
23788 | PP(I,2)=0D0 | |
23789 | PP(I,3)=-0.5D0*SHPR*(-1)**I | |
23790 | PP(I,4)=-0.5D0*SHPR | |
23791 | 110 CONTINUE | |
23792 | DO 120 J=1,4 | |
23793 | PP(6,J)=PP(1,J)+PP(2,J) | |
23794 | PP(7,J)=PP(1,J)+PP(3,J) | |
23795 | PP(8,J)=PP(1,J)+PP(4,J) | |
23796 | PP(9,J)=PP(1,J)+PP(5,J) | |
23797 | PP(10,J)=-PP(2,J)-PP(3,J) | |
23798 | PP(11,J)=-PP(2,J)-PP(4,J) | |
23799 | PP(12,J)=-PP(2,J)-PP(5,J) | |
23800 | PP(13,J)=-PP(4,J)-PP(5,J) | |
23801 | 120 CONTINUE | |
23802 | ||
23803 | C...Derived kinematics invariants. | |
23804 | X1=DOT(1,2) | |
23805 | X2=DOT(1,3) | |
23806 | X3=DOT(1,4) | |
23807 | X4=DOT(1,5) | |
23808 | X5=DOT(2,3) | |
23809 | X6=DOT(2,4) | |
23810 | X7=DOT(2,5) | |
23811 | X8=DOT(3,4) | |
23812 | X9=DOT(3,5) | |
23813 | X10=DOT(4,5) | |
23814 | ||
23815 | C...Propagators. | |
23816 | SS1=DOT(7,7)-SPQ | |
23817 | SS2=DOT(8,8)-SPQ | |
23818 | SS3=DOT(9,9)-SPQ | |
23819 | SS4=DOT(10,10)-SPQ | |
23820 | SS5=DOT(11,11)-SPQ | |
23821 | SS6=DOT(12,12)-SPQ | |
23822 | SS7=DOT(13,13) | |
23823 | DX(1)=SS1*SS6 | |
23824 | DX(2)=SS2*SS6 | |
23825 | DX(3)=SS2*SS4 | |
23826 | DX(4)=SS1*SS5 | |
23827 | DX(5)=SS3*SS5 | |
23828 | DX(6)=SS3*SS4 | |
23829 | DX(7)=SS7*SS1 | |
23830 | DX(8)=SS7*SS4 | |
23831 | ||
23832 | C...Define colour coefficients for g + g -> Q + Qbar + H. | |
23833 | IF(ISUB.EQ.121.OR.ISUB.EQ.181.OR.ISUB.EQ.186) THEN | |
23834 | DO 140 I=1,3 | |
23835 | DO 130 J=1,3 | |
23836 | CLR(I,J)=16D0/3D0 | |
23837 | CLR(I+3,J+3)=16D0/3D0 | |
23838 | CLR(I,J+3)=-2D0/3D0 | |
23839 | CLR(I+3,J)=-2D0/3D0 | |
23840 | 130 CONTINUE | |
23841 | 140 CONTINUE | |
23842 | DO 160 L=1,2 | |
23843 | DO 150 I=1,3 | |
23844 | CLR(I,6+L)=-6D0 | |
23845 | CLR(I+3,6+L)=6D0 | |
23846 | CLR(6+L,I)=-6D0 | |
23847 | CLR(6+L,I+3)=6D0 | |
23848 | 150 CONTINUE | |
23849 | 160 CONTINUE | |
23850 | DO 180 K1=1,2 | |
23851 | DO 170 K2=1,2 | |
23852 | CLR(6+K1,6+K2)=12D0 | |
23853 | 170 CONTINUE | |
23854 | 180 CONTINUE | |
23855 | ||
23856 | C...Evaluate matrix elements for g + g -> Q + Qbar + H. | |
23857 | FM(1,1)=64*PQ**6+16*PQ**4*PH**2+32*PQ**4*(X1+2*X2+X4+X9+2* | |
23858 | & X7+X5)+8*PQ**2*PH**2*(-X1-X4+2*X7)+16*PQ**2*(X2*X9+4*X2* | |
23859 | & X7+X2*X5-2*X4*X7-2*X9*X7)+8*PH**2*X4*X7-16*X2*X9*X7 | |
23860 | FM(1,2)=16*PQ**6+8*PQ**4*(-2*X1+X2-2*X3-2*X4-4*X10+X9-X8+2 | |
23861 | & *X7-4*X6+X5)+8*PQ**2*(-2*X1*X2-2*X2*X4-2*X2*X10+X2*X7-2* | |
23862 | & X2*X6-2*X3*X7+2*X4*X7+4*X10*X7-X9*X7-X8*X7)+16*X2*X7*(X4+ | |
23863 | & X10) | |
23864 | FM(1,3)=16*PQ**6-4*PQ**4*PH**2+8*PQ**4*(-2*X1+2*X2-2*X3-4* | |
23865 | & X4-8*X10+X9+X8-2*X7-4*X6+2*X5)-(4*PQ**2*PH**2)*(X1+X4+X10 | |
23866 | & +X6)+8*PQ**2*(-2*X1*X2-2*X1*X10+X1*X9+X1*X8-2*X1*X5+X2**2 | |
23867 | & -4*X2*X4-5*X2*X10+X2*X8-X2*X7-3*X2*X6+X2*X5+X3*X9+2*X3*X7 | |
23868 | & -X3*X5+X4*X8+2*X4*X6-3*X4*X5-5*X10*X5+X9*X8+X9*X6+X9*X5+ | |
23869 | & X8*X7-4*X6*X5+X5**2)-(16*X2*X5)*(X1+X4+X10+X6) | |
23870 | FM(1,4)=16*PQ**6+4*PQ**4*PH**2+16*PQ**4*(-X1+X2-X3-X4+X10- | |
23871 | & X9-X8+2*X7+2*X6-X5)+4*PQ**2*PH**2*(X1+X3+X4+X10+2*X7+2*X6 | |
23872 | & )+8*PQ**2*(4*X1*X10+4*X1*X7+4*X1*X6+2*X2*X10-X2*X9-X2*X8+ | |
23873 | & 4*X2*X7+4*X2*X6-X2*X5+4*X10*X5+4*X7*X5+4*X6*X5)-(8*PH**2* | |
23874 | & X1)*(X10+X7+X6)+16*X2*X5*(X10+X7+X6) | |
23875 | FM(1,5)=8*PQ**4*(-2*X1-2*X4+X10-X9)+4*PQ**2*(4*X1**2-2*X1* | |
23876 | & X2+8*X1*X3+6*X1*X10-2*X1*X9+4*X1*X8+4*X1*X7+4*X1*X6+2*X1* | |
23877 | & X5+X2*X10+4*X3*X4-X3*X9+2*X3*X7+3*X4*X8-2*X4*X6+2*X4*X5-4 | |
23878 | & *X10*X7+3*X10*X5-3*X9*X6+3*X8*X7-4*X7**2+4*X7*X5)+8*(X1** | |
23879 | & 2*X9-X1**2*X8-X1*X2*X7+X1*X2*X6+X1*X3*X9+X1*X3*X5-X1*X4* | |
23880 | & X8-X1*X4*X5+X1*X10*X9+X1*X9*X7+X1*X9*X6-X1*X8*X7-X2*X3*X7 | |
23881 | & +X2*X4*X6-X2*X10*X7-X2*X7**2+X3*X7*X5-X4*X10*X5-X4*X7*X5- | |
23882 | & X4*X6*X5) | |
23883 | FM(1,6)=16*PQ**4*(-4*X1-X4+X9-X7)+4*PQ**2*PH**2*(-2*X1-X4- | |
23884 | & X7)+16*PQ**2*(-2*X1**2-3*X1*X2-2*X1*X4-3*X1*X9-2*X1*X7-3* | |
23885 | & X1*X5-2*X2*X4-2*X7*X5)-8*PH**2*X4*X7+8*(-X1*X2*X9-2*X1*X2 | |
23886 | & *X5-X1*X9**2-X1*X9*X5+X2**2*X7-X2*X4*X5+X2*X9*X7-X2*X7*X5 | |
23887 | & +X4*X9*X5+X4*X5**2) | |
23888 | FM(1,7)=8*PQ**4*(2*X3+X4+3*X10+X9+2*X8+3*X7+6*X6)+2*PQ**2* | |
23889 | & PH**2*(-2*X3-X4+3*X10+3*X7+6*X6)+4*PQ**2*(4*X1*X10+4*X1* | |
23890 | & X7+8*X1*X6+6*X2*X10+X2*X9+2*X2*X8+6*X2*X7+12*X2*X6-8*X3* | |
23891 | & X7+4*X4*X7+4*X4*X6+4*X10*X5+4*X9*X7+4*X9*X6-8*X8*X7+4*X7* | |
23892 | & X5+8*X6*X5)+4*PH**2*(-X1*X10-X1*X7-2*X1*X6+2*X3*X7-X4*X7- | |
23893 | & X4*X6)+8*X2*(X10*X5+X9*X7+X9*X6-2*X8*X7+X7*X5+2*X6*X5) | |
23894 | FM(1,8)=8*PQ**4*(2*X3+X4+3*X10+2*X9+X8+3*X7+6*X6)+2*PQ**2* | |
23895 | & PH**2*(-2*X3-X4+2*X10+X7+2*X6)+4*PQ**2*(4*X1*X10-2*X1*X9+ | |
23896 | & 2*X1*X8+4*X1*X7+8*X1*X6+5*X2*X10+2*X2*X9+X2*X8+4*X2*X7+8* | |
23897 | & X2*X6-X3*X9-8*X3*X7+2*X3*X5+2*X4*X9-X4*X8+4*X4*X7+4*X4*X6 | |
23898 | & +4*X4*X5+5*X10*X5+X9**2-X9*X8+2*X9*X7+5*X9*X6+X9*X5-7*X8* | |
23899 | & X7+2*X8*X5+2*X7*X5+10*X6*X5)+2*PH**2*(-X1*X10+X3*X7-2*X4* | |
23900 | & X7+X4*X6)+4*(-X1*X9**2+X1*X9*X8-2*X1*X9*X5-X1*X8*X5+2*X2* | |
23901 | & X10*X5+X2*X9*X7+X2*X9*X6-2*X2*X8*X7+3*X2*X6*X5+X3*X9*X5+ | |
23902 | & X3*X5**2+X4*X9*X5-2*X4*X8*X5+2*X4*X5**2) | |
23903 | FM(2,2)=16*PQ**6+16*PQ**4*(-X1+X3-X4-X10+X7-X6)+16*PQ**2*( | |
23904 | & X3*X10+X3*X7+X3*X6+X4*X7+X10*X7)-16*X3*X10*X7 | |
23905 | FM(2,3)=16*PQ**6+8*PQ**4*(-2*X1+X2+2*X3-4*X4-4*X10-X9+X8-2 | |
23906 | & *X7-2*X6+X5)+8*PQ**2*(-2*X1*X5+4*X3*X10-X3*X9-X3*X8-2*X3* | |
23907 | & X7+2*X3*X6+X3*X5-2*X4*X5-2*X10*X5-2*X6*X5)+16*X3*X5*(X10+ | |
23908 | & X6) | |
23909 | FM(2,4)=8*PQ**4*(-2*X1-2*X3+X10-X8)+4*PQ**2*(4*X1**2-2*X1* | |
23910 | & X2+8*X1*X4+6*X1*X10+4*X1*X9-2*X1*X8+4*X1*X7+4*X1*X6+2*X1* | |
23911 | & X5+X2*X10+4*X3*X4+3*X3*X9-2*X3*X7+2*X3*X5-X4*X8+2*X4*X6-4 | |
23912 | & *X10*X6+3*X10*X5+3*X9*X6-3*X8*X7-4*X6**2+4*X6*X5)+8*(-X1 | |
23913 | & **2*X9+X1**2*X8+X1*X2*X7-X1*X2*X6-X1*X3*X9-X1*X3*X5+X1*X4 | |
23914 | & *X8+X1*X4*X5+X1*X10*X8-X1*X9*X6+X1*X8*X7+X1*X8*X6+X2*X3* | |
23915 | & X7-X2*X4*X6-X2*X10*X6-X2*X6**2-X3*X10*X5-X3*X7*X5-X3*X6* | |
23916 | & X5+X4*X6*X5) | |
23917 | FM(2,5)=16*PQ**4*X10+8*PQ**2*(2*X1**2+2*X1*X3+2*X1*X4+2*X1 | |
23918 | & *X10+2*X1*X7+2*X1*X6+X3*X7+X4*X6)+8*(-2*X1**3-2*X1**2*X3- | |
23919 | & 2*X1**2*X4-2*X1**2*X10-2*X1**2*X7-2*X1**2*X6-2*X1*X3*X4- | |
23920 | & X1*X3*X10-2*X1*X3*X6-X1*X4*X10-2*X1*X4*X7-X1*X10**2-X1* | |
23921 | & X10*X7-X1*X10*X6-2*X1*X7*X6+X3**2*X7-X3*X4*X7-X3*X4*X6+X3 | |
23922 | & *X10*X7+X3*X7**2-X3*X7*X6+X4**2*X6+X4*X10*X6-X4*X7*X6+X4* | |
23923 | & X6**2) | |
23924 | FM(2,6)=8*PQ**4*(-2*X1+X10-X9-2*X7)+4*PQ**2*(4*X1**2+2*X1* | |
23925 | & X2+4*X1*X3+4*X1*X4+6*X1*X10-2*X1*X9+4*X1*X8+8*X1*X6-2*X1* | |
23926 | & X5+4*X2*X4+3*X2*X10+2*X2*X7-3*X3*X9-2*X3*X7-4*X4**2-4*X4* | |
23927 | & X10+3*X4*X8+2*X4*X6+X10*X5-X9*X6+3*X8*X7+4*X7*X6)+8*(X1** | |
23928 | & 2*X9-X1**2*X8-X1*X2*X7+X1*X2*X6+X1*X3*X9+X1*X3*X5+X1*X4* | |
23929 | & X9-X1*X4*X8-X1*X4*X5+X1*X10*X9+X1*X9*X6-X1*X8*X7-X2*X3*X7 | |
23930 | & -X2*X4*X7+X2*X4*X6-X2*X10*X7+X3*X7*X5-X4**2*X5-X4*X10*X5- | |
23931 | & X4*X6*X5) | |
23932 | FM(2,7)=8*PQ**4*(X3+2*X4+3*X10+X7+2*X6)+4*PQ**2*(-4*X1*X3- | |
23933 | & 2*X1*X4-2*X1*X10+X1*X9-X1*X8-4*X1*X7-2*X1*X6+X2*X3+2*X2* | |
23934 | & X4+3*X2*X10+X2*X7+2*X2*X6-6*X3*X4-6*X3*X10-2*X3*X9-2*X3* | |
23935 | & X7-4*X3*X6-X3*X5-6*X4**2-6*X4*X10-3*X4*X9-X4*X8-4*X4*X7-2 | |
23936 | & *X4*X6-2*X4*X5-3*X10*X9-3*X10*X8-6*X10*X7-6*X10*X6+X10*X5 | |
23937 | & +X9*X7-2*X8*X7-2*X8*X6-6*X7*X6+X7*X5-6*X6**2+2*X6*X5)+4*( | |
23938 | & -X1**2*X9+X1**2*X8-2*X1*X2*X10-3*X1*X2*X7-3*X1*X2*X6+X1* | |
23939 | & X3*X9-X1*X3*X5+X1*X4*X9+X1*X4*X8+X1*X4*X5+X1*X10*X9+X1* | |
23940 | & X10*X8-X1*X9*X6+X1*X8*X6+X2*X3*X7-3*X2*X4*X7-X2*X4*X6-3* | |
23941 | & X2*X10*X7-3*X2*X10*X6-3*X2*X7*X6-3*X2*X6**2-2*X3*X4*X5-X3 | |
23942 | & *X10*X5-X3*X6*X5-X4**2*X5-X4*X10*X5+X4*X6*X5) | |
23943 | FM(2,8)=8*PQ**4*(X3+2*X4+3*X10+X7+2*X6)+4*PQ**2*(-4*X1*X3- | |
23944 | & 2*X1*X4-2*X1*X10-X1*X9+X1*X8-4*X1*X7-2*X1*X6+X2*X3+2*X2* | |
23945 | & X4+X2*X10-X2*X7-2*X2*X6-6*X3*X4-6*X3*X10-2*X3*X9+X3*X8-2* | |
23946 | & X3*X7-4*X3*X6+X3*X5-6*X4**2-6*X4*X10-2*X4*X9-4*X4*X7-2*X4 | |
23947 | & *X6+2*X4*X5-3*X10*X9-3*X10*X8-6*X10*X7-6*X10*X6+3*X10*X5- | |
23948 | & X9*X6-2*X8*X7-3*X8*X6-6*X7*X6+X7*X5-6*X6**2+2*X6*X5)+4*( | |
23949 | & X1**2*X9-X1**2*X8-X1*X2*X7+X1*X2*X6-3*X1*X3*X5+X1*X4*X9- | |
23950 | & X1*X4*X8-3*X1*X4*X5+X1*X10*X9+X1*X10*X8-2*X1*X10*X5+X1*X9 | |
23951 | & *X6+X1*X8*X7+X1*X8*X6-X2*X4*X7+X2*X4*X6-X2*X10*X7-X2*X10* | |
23952 | & X6-2*X2*X7*X6-X2*X6**2-3*X3*X4*X5-3*X3*X10*X5+X3*X7*X5-3* | |
23953 | & X3*X6*X5-3*X4**2*X5-3*X4*X10*X5-X4*X6*X5) | |
23954 | FM(3,3)=64*PQ**6+16*PQ**4*PH**2+32*PQ**4*(X1+X2+2*X3+X8+X6 | |
23955 | & +2*X5)+8*PQ**2*PH**2*(-X1+2*X3-X6)+16*PQ**2*(X2*X5-2*X3* | |
23956 | & X8-2*X3*X6+4*X3*X5+X8*X5)+8*PH**2*X3*X6-16*X3*X8*X5 | |
23957 | FM(3,4)=16*PQ**4*(-4*X1-X3+X8-X6)+4*PQ**2*PH**2*(-2*X1-X3- | |
23958 | & X6)+16*PQ**2*(-2*X1**2-3*X1*X2-2*X1*X3-3*X1*X8-2*X1*X6-3* | |
23959 | & X1*X5-2*X2*X3-2*X6*X5)-8*PH**2*X3*X6+8*(-X1*X2*X8-2*X1*X2 | |
23960 | & *X5-X1*X8**2-X1*X8*X5+X2**2*X6-X2*X3*X5+X2*X8*X6-X2*X6*X5 | |
23961 | & +X3*X8*X5+X3*X5**2) | |
23962 | FM(3,5)=8*PQ**4*(-2*X1+X10-X8-2*X6)+4*PQ**2*(4*X1**2+2*X1* | |
23963 | & X2+4*X1*X3+4*X1*X4+6*X1*X10+4*X1*X9-2*X1*X8+8*X1*X7-2*X1* | |
23964 | & X5+4*X2*X3+3*X2*X10+2*X2*X6-4*X3**2-4*X3*X10+3*X3*X9+2*X3 | |
23965 | & *X7-3*X4*X8-2*X4*X6+X10*X5+3*X9*X6-X8*X7+4*X7*X6)+8*(-X1 | |
23966 | & **2*X9+X1**2*X8+X1*X2*X7-X1*X2*X6-X1*X3*X9+X1*X3*X8-X1*X3 | |
23967 | & *X5+X1*X4*X8+X1*X4*X5+X1*X10*X8-X1*X9*X6+X1*X8*X7+X2*X3* | |
23968 | & X7-X2*X3*X6-X2*X4*X6-X2*X10*X6-X3**2*X5-X3*X10*X5-X3*X7* | |
23969 | & X5+X4*X6*X5) | |
23970 | FM(3,6)=16*PQ**6+4*PQ**4*PH**2+16*PQ**4*(-X1-X2+2*X3+2*X4+ | |
23971 | & X10-X9-X8-X7-X6+X5)+4*PQ**2*PH**2*(X1+2*X3+2*X4+X10+X7+X6 | |
23972 | & )+8*PQ**2*(4*X1*X3+4*X1*X4+4*X1*X10+4*X2*X3+4*X2*X4+4*X2* | |
23973 | & X10-X2*X5+4*X3*X5+4*X4*X5+2*X10*X5-X9*X5-X8*X5)-(8*PH**2* | |
23974 | & X1)*(X3+X4+X10)+16*X2*X5*(X3+X4+X10) | |
23975 | FM(3,7)=8*PQ**4*(3*X3+6*X4+3*X10+X9+2*X8+2*X7+X6)+2*PQ**2* | |
23976 | & PH**2*(X3+2*X4+2*X10-2*X7-X6)+4*PQ**2*(4*X1*X3+8*X1*X4+4* | |
23977 | & X1*X10+2*X1*X9-2*X1*X8+2*X2*X3+10*X2*X4+5*X2*X10+2*X2*X9+ | |
23978 | & X2*X8+2*X2*X7+4*X2*X6-7*X3*X9+2*X3*X8-8*X3*X7+4*X3*X6+4* | |
23979 | & X3*X5+5*X4*X8+4*X4*X6+8*X4*X5+5*X10*X5-X9*X8-X9*X6+X9*X5+ | |
23980 | & X8**2-X8*X7+2*X8*X6+2*X8*X5)+2*PH**2*(-X1*X10+X3*X7-2*X3* | |
23981 | & X6+X4*X6)+4*(-X1*X2*X9-2*X1*X2*X8+X1*X9*X8-X1*X8**2+X2**2 | |
23982 | & *X7+2*X2**2*X6+3*X2*X4*X5+2*X2*X10*X5-2*X2*X9*X6+X2*X8*X7 | |
23983 | & +X2*X8*X6-2*X3*X9*X5+X3*X8*X5+X4*X8*X5) | |
23984 | FM(3,8)=8*PQ**4*(3*X3+6*X4+3*X10+2*X9+X8+2*X7+X6)+2*PQ**2* | |
23985 | & PH**2*(3*X3+6*X4+3*X10-2*X7-X6)+4*PQ**2*(4*X1*X3+8*X1*X4+ | |
23986 | & 4*X1*X10+4*X2*X3+8*X2*X4+4*X2*X10-8*X3*X9+4*X3*X8-8*X3*X7 | |
23987 | & +4*X3*X6+6*X3*X5+4*X4*X8+4*X4*X6+12*X4*X5+6*X10*X5+2*X9* | |
23988 | & X5+X8*X5)+4*PH**2*(-X1*X3-2*X1*X4-X1*X10+2*X3*X7-X3*X6-X4 | |
23989 | & *X6)+8*X5*(X2*X3+2*X2*X4+X2*X10-2*X3*X9+X3*X8+X4*X8) | |
23990 | FM(4,4)=64*PQ**6+16*PQ**4*PH**2+32*PQ**4*(X1+2*X2+X3+X8+2* | |
23991 | & X6+X5)+8*PQ**2*PH**2*(-X1-X3+2*X6)+16*PQ**2*(X2*X8+4*X2* | |
23992 | & X6+X2*X5-2*X3*X6-2*X8*X6)+8*PH**2*X3*X6-16*X2*X8*X6 | |
23993 | FM(4,5)=16*PQ**6+8*PQ**4*(-2*X1+X2-2*X3-2*X4-4*X10-X9+X8-4 | |
23994 | & *X7+2*X6+X5)+8*PQ**2*(-2*X1*X2-2*X2*X3-2*X2*X10-2*X2*X7+ | |
23995 | & X2*X6+2*X3*X6-2*X4*X6+4*X10*X6-X9*X6-X8*X6)+16*X2*X6*(X3+ | |
23996 | & X10) | |
23997 | FM(4,6)=16*PQ**6-4*PQ**4*PH**2+8*PQ**4*(-2*X1+2*X2-4*X3-2* | |
23998 | & X4-8*X10+X9+X8-4*X7-2*X6+2*X5)-(4*PQ**2*PH**2)*(X1+X3+X10 | |
23999 | & +X7)+8*PQ**2*(-2*X1*X2-2*X1*X10+X1*X9+X1*X8-2*X1*X5+X2**2 | |
24000 | & -4*X2*X3-5*X2*X10+X2*X9-3*X2*X7-X2*X6+X2*X5+X3*X9+2*X3*X7 | |
24001 | & -3*X3*X5+X4*X8+2*X4*X6-X4*X5-5*X10*X5+X9*X8+X9*X6+X8*X7+ | |
24002 | & X8*X5-4*X7*X5+X5**2)-(16*X2*X5)*(X1+X3+X10+X7) | |
24003 | FM(4,7)=8*PQ**4*(-X3-2*X4-3*X10-2*X9-X8-6*X7-3*X6)+2*PQ**2 | |
24004 | & *PH**2*(X3+2*X4-3*X10-6*X7-3*X6)+4*PQ**2*(-4*X1*X10-8*X1* | |
24005 | & X7-4*X1*X6-6*X2*X10-2*X2*X9-X2*X8-12*X2*X7-6*X2*X6-4*X3* | |
24006 | & X7-4*X3*X6+8*X4*X6-4*X10*X5+8*X9*X6-4*X8*X7-4*X8*X6-8*X7* | |
24007 | & X5-4*X6*X5)+4*PH**2*(X1*X10+2*X1*X7+X1*X6+X3*X7+X3*X6-2* | |
24008 | & X4*X6)+8*X2*(-X10*X5+2*X9*X6-X8*X7-X8*X6-2*X7*X5-X6*X5) | |
24009 | FM(4,8)=8*PQ**4*(-X3-2*X4-3*X10-X9-2*X8-6*X7-3*X6)+2*PQ**2 | |
24010 | & *PH**2*(X3+2*X4-2*X10-2*X7-X6)+4*PQ**2*(-4*X1*X10-2*X1*X9 | |
24011 | & +2*X1*X8-8*X1*X7-4*X1*X6-5*X2*X10-X2*X9-2*X2*X8-8*X2*X7-4 | |
24012 | & *X2*X6+X3*X9-2*X3*X8-4*X3*X7-4*X3*X6-4*X3*X5+X4*X8+8*X4* | |
24013 | & X6-2*X4*X5-5*X10*X5+X9*X8+7*X9*X6-2*X9*X5-X8**2-5*X8*X7-2 | |
24014 | & *X8*X6-X8*X5-10*X7*X5-2*X6*X5)+2*PH**2*(X1*X10-X3*X7+2*X3 | |
24015 | & *X6-X4*X6)+4*(-X1*X9*X8+X1*X9*X5+X1*X8**2+2*X1*X8*X5-2*X2 | |
24016 | & *X10*X5+2*X2*X9*X6-X2*X8*X7-X2*X8*X6-3*X2*X7*X5+2*X3*X9* | |
24017 | & X5-X3*X8*X5-2*X3*X5**2-X4*X8*X5-X4*X5**2) | |
24018 | FM(5,5)=16*PQ**6+16*PQ**4*(-X1-X3+X4-X10-X7+X6)+16*PQ**2*( | |
24019 | & X3*X6+X4*X10+X4*X7+X4*X6+X10*X6)-16*X4*X10*X6 | |
24020 | FM(5,6)=16*PQ**6+8*PQ**4*(-2*X1+X2-4*X3+2*X4-4*X10+X9-X8-2 | |
24021 | & *X7-2*X6+X5)+8*PQ**2*(-2*X1*X5-2*X3*X5+4*X4*X10-X4*X9-X4* | |
24022 | & X8+2*X4*X7-2*X4*X6+X4*X5-2*X10*X5-2*X7*X5)+16*X4*X5*(X10+ | |
24023 | & X7) | |
24024 | FM(5,7)=8*PQ**4*(-2*X3-X4-3*X10-2*X7-X6)+4*PQ**2*(2*X1*X3+ | |
24025 | & 4*X1*X4+2*X1*X10+X1*X9-X1*X8+2*X1*X7+4*X1*X6-2*X2*X3-X2* | |
24026 | & X4-3*X2*X10-2*X2*X7-X2*X6+6*X3**2+6*X3*X4+6*X3*X10+X3*X9+ | |
24027 | & 3*X3*X8+2*X3*X7+4*X3*X6+2*X3*X5+6*X4*X10+2*X4*X8+4*X4*X7+ | |
24028 | & 2*X4*X6+X4*X5+3*X10*X9+3*X10*X8+6*X10*X7+6*X10*X6-X10*X5+ | |
24029 | & 2*X9*X7+2*X9*X6-X8*X6+6*X7**2+6*X7*X6-2*X7*X5-X6*X5)+4*(- | |
24030 | & X1**2*X9+X1**2*X8+2*X1*X2*X10+3*X1*X2*X7+3*X1*X2*X6-X1*X3 | |
24031 | & *X9-X1*X3*X8-X1*X3*X5-X1*X4*X8+X1*X4*X5-X1*X10*X9-X1*X10* | |
24032 | & X8-X1*X9*X7+X1*X8*X7+X2*X3*X7+3*X2*X3*X6-X2*X4*X6+3*X2* | |
24033 | & X10*X7+3*X2*X10*X6+3*X2*X7**2+3*X2*X7*X6+X3**2*X5+2*X3*X4 | |
24034 | & *X5+X3*X10*X5-X3*X7*X5+X4*X10*X5+X4*X7*X5) | |
24035 | FM(5,8)=8*PQ**4*(-2*X3-X4-3*X10-2*X7-X6)+4*PQ**2*(2*X1*X3+ | |
24036 | & 4*X1*X4+2*X1*X10-X1*X9+X1*X8+2*X1*X7+4*X1*X6-2*X2*X3-X2* | |
24037 | & X4-X2*X10+2*X2*X7+X2*X6+6*X3**2+6*X3*X4+6*X3*X10+2*X3*X8+ | |
24038 | & 2*X3*X7+4*X3*X6-2*X3*X5+6*X4*X10-X4*X9+2*X4*X8+4*X4*X7+2* | |
24039 | & X4*X6-X4*X5+3*X10*X9+3*X10*X8+6*X10*X7+6*X10*X6-3*X10*X5+ | |
24040 | & 3*X9*X7+2*X9*X6+X8*X7+6*X7**2+6*X7*X6-2*X7*X5-X6*X5)+4*( | |
24041 | & X1**2*X9-X1**2*X8-X1*X2*X7+X1*X2*X6+X1*X3*X9-X1*X3*X8+3* | |
24042 | & X1*X3*X5+3*X1*X4*X5-X1*X10*X9-X1*X10*X8+2*X1*X10*X5-X1*X9 | |
24043 | & *X7-X1*X9*X6-X1*X8*X7-X2*X3*X7+X2*X3*X6+X2*X10*X7+X2*X10* | |
24044 | & X6+X2*X7**2+2*X2*X7*X6+3*X3**2*X5+3*X3*X4*X5+3*X3*X10*X5+ | |
24045 | & X3*X7*X5+3*X4*X10*X5+3*X4*X7*X5-X4*X6*X5) | |
24046 | FM(6,6)=64*PQ**6+16*PQ**4*PH**2+32*PQ**4*(X1+X2+2*X4+X9+X7 | |
24047 | & +2*X5)+8*PQ**2*PH**2*(-X1+2*X4-X7)+16*PQ**2*(X2*X5-2*X4* | |
24048 | & X9-2*X4*X7+4*X4*X5+X9*X5)+8*PH**2*X4*X7-16*X4*X9*X5 | |
24049 | FM(6,7)=8*PQ**4*(-6*X3-3*X4-3*X10-2*X9-X8-X7-2*X6)+2*PQ**2 | |
24050 | & *PH**2*(-2*X3-X4-2*X10+X7+2*X6)+4*PQ**2*(-8*X1*X3-4*X1*X4 | |
24051 | & -4*X1*X10+2*X1*X9-2*X1*X8-10*X2*X3-2*X2*X4-5*X2*X10-X2*X9 | |
24052 | & -2*X2*X8-4*X2*X7-2*X2*X6-5*X3*X9-4*X3*X7-8*X3*X5-2*X4*X9+ | |
24053 | & 7*X4*X8-4*X4*X7+8*X4*X6-4*X4*X5-5*X10*X5-X9**2+X9*X8-2*X9 | |
24054 | & *X7+X9*X6-2*X9*X5+X8*X7-X8*X5)+2*PH**2*(X1*X10-X3*X7+2*X4 | |
24055 | & *X7-X4*X6)+4*(2*X1*X2*X9+X1*X2*X8+X1*X9**2-X1*X9*X8-2*X2 | |
24056 | & **2*X7-X2**2*X6-3*X2*X3*X5-2*X2*X10*X5-X2*X9*X7-X2*X9*X6+ | |
24057 | & 2*X2*X8*X7-X3*X9*X5-X4*X9*X5+2*X4*X8*X5) | |
24058 | FM(6,8)=8*PQ**4*(-6*X3-3*X4-3*X10-X9-2*X8-X7-2*X6)+2*PQ**2 | |
24059 | & *PH**2*(-6*X3-3*X4-3*X10+X7+2*X6)+4*PQ**2*(-8*X1*X3-4*X1* | |
24060 | & X4-4*X1*X10-8*X2*X3-4*X2*X4-4*X2*X10-4*X3*X9-4*X3*X7-12* | |
24061 | & X3*X5-4*X4*X9+8*X4*X8-4*X4*X7+8*X4*X6-6*X4*X5-6*X10*X5-X9 | |
24062 | & *X5-2*X8*X5)+4*PH**2*(2*X1*X3+X1*X4+X1*X10+X3*X7+X4*X7-2* | |
24063 | & X4*X6)+8*X5*(-2*X2*X3-X2*X4-X2*X10-X3*X9-X4*X9+2*X4*X8) | |
24064 | FM(7,7)=72*PQ**4*X10+18*PQ**2*PH**2*X10+8*PQ**2*(X1*X10+9* | |
24065 | & X2*X10+7*X3*X7+2*X3*X6+2*X4*X7+7*X4*X6+X10*X5+2*X9*X7+7* | |
24066 | & X9*X6+7*X8*X7+2*X8*X6)+2*PH**2*(-X1*X10-7*X3*X7-2*X3*X6-2 | |
24067 | & *X4*X7-7*X4*X6)+4*X2*(X10*X5+2*X9*X7+7*X9*X6+7*X8*X7+2*X8 | |
24068 | & *X6) | |
24069 | FM(7,8)=72*PQ**4*X10+2*PQ**2*PH**2*X10+4*PQ**2*(2*X1*X10+ | |
24070 | & 10*X2*X10+7*X3*X9+2*X3*X8+14*X3*X7+4*X3*X6+2*X4*X9+7*X4* | |
24071 | & X8+4*X4*X7+14*X4*X6+10*X10*X5+X9**2+7*X9*X8+2*X9*X7+7*X9* | |
24072 | & X6+X8**2+7*X8*X7+2*X8*X6)+2*PH**2*(7*X1*X10-7*X3*X7-2*X3* | |
24073 | & X6-2*X4*X7-7*X4*X6)+2*(-2*X1*X9**2-14*X1*X9*X8-2*X1*X8**2 | |
24074 | & +2*X2*X10*X5+2*X2*X9*X7+7*X2*X9*X6+7*X2*X8*X7+2*X2*X8*X6+ | |
24075 | & 7*X3*X9*X5+2*X3*X8*X5+2*X4*X9*X5+7*X4*X8*X5) | |
24076 | FM(8,8)=72*PQ**4*X10+18*PQ**2*PH**2*X10+8*PQ**2*(X1*X10+X2 | |
24077 | & *X10+7*X3*X9+2*X3*X8+7*X3*X7+2*X3*X6+2*X4*X9+7*X4*X8+2*X4 | |
24078 | & *X7+7*X4*X6+9*X10*X5)+2*PH**2*(-X1*X10-7*X3*X7-2*X3*X6-2* | |
24079 | & X4*X7-7*X4*X6)+4*X5*(X2*X10+7*X3*X9+2*X3*X8+2*X4*X9+7*X4* | |
24080 | & X8) | |
24081 | FM(9,9)=-4*PQ**4*X10-PQ**2*PH**2*X10+4*PQ**2*(-X1*X10-X2*X10+ | |
24082 | & X3*X7+X4*X6-X10*X5+X9*X6+X8*X7)+PH**2*(X1*X10-X3*X7-X4*X6 | |
24083 | & )+2*X2*(-X10*X5+X9*X6+X8*X7) | |
24084 | FM(9,10)=-4*PQ**4*X10-PQ**2*PH**2*X10+2*PQ**2*(-2*X1*X10-2*X2* | |
24085 | & X10+2*X3*X9+2*X3*X7+2*X4*X6-2*X10*X5+X9*X8+2*X8*X7)+PH**2 | |
24086 | & *(X1*X10-X3*X7-X4*X6)+2*(-X1*X9*X8-X2*X10*X5+X2*X8*X7+X3* | |
24087 | & X9*X5) | |
24088 | FMXX=-4*PQ**4*X10-PQ**2*PH**2*X10+2*PQ**2*(-2*X1*X10-2*X2* | |
24089 | & X10+2*X4*X8+2*X4*X6+2*X3*X7-2*X10*X5+X9*X8+2*X9*X6)+PH**2 | |
24090 | & *(X1*X10-X3*X7-X4*X6)+2*(-X1*X9*X8-X2*X10*X5+X2*X9*X6+X4* | |
24091 | & X8*X5) | |
24092 | FM(9,10)=0.5D0*(FMXX+FM(9,10)) | |
24093 | FM(10,10)=-4*PQ**4*X10-PQ**2*PH**2*X10+4*PQ**2*(-X1*X10-X2*X10+ | |
24094 | & X3*X7+X4*X6-X10*X5+X9*X3+X8*X4)+PH**2*(X1*X10-X3*X7-X4*X6 | |
24095 | & )+2*X5*(-X10*X2+X9*X3+X8*X4) | |
24096 | ||
24097 | C...Repackage matrix elements. | |
24098 | DO 200 I=1,8 | |
24099 | DO 190 J=1,8 | |
24100 | RM(I,J)=FM(I,J) | |
24101 | 190 CONTINUE | |
24102 | 200 CONTINUE | |
24103 | RM(7,7)=FM(7,7)-2D0*FM(9,9) | |
24104 | RM(7,8)=FM(7,8)-2D0*FM(9,10) | |
24105 | RM(8,8)=FM(8,8)-2D0*FM(10,10) | |
24106 | ||
24107 | C...Produce final result: matrix elements * colours * propagators. | |
24108 | DO 220 I=1,8 | |
24109 | DO 210 J=I,8 | |
24110 | FAC=8D0 | |
24111 | IF(I.EQ.J)FAC=4D0 | |
24112 | WTQQBH=WTQQBH+RM(I,J)*FAC*CLR(I,J)/(DX(I)*DX(J)) | |
24113 | 210 CONTINUE | |
24114 | 220 CONTINUE | |
24115 | WTQQBH=-WTQQBH/256D0 | |
24116 | ||
24117 | ELSE | |
24118 | C...Evaluate matrix elements for q + qbar -> Q + Qbar + H. | |
24119 | A11=-8D0*PQ**4*X10-2D0*PQ**2*PH**2*X10-(8D0*PQ**2)*(X2*X10+X3 | |
24120 | & *X7+X4*X6+X9*X6+X8*X7)+2D0*PH**2*(X3*X7+X4*X6)-(4D0*X2)*(X9 | |
24121 | & *X6+X8*X7) | |
24122 | A12=-8D0*PQ**4*X10+4D0*PQ**2*(-X2*X10-X3*X9-2D0*X3*X7-X4*X8- | |
24123 | & 2D0*X4*X6-X10*X5-X9*X8-X9*X6-X8*X7)+2D0*PH**2*(-X1*X10+X3*X7 | |
24124 | & +X4*X6)+2D0*(2D0*X1*X9*X8-X2*X9*X6-X2*X8*X7-X3*X9*X5-X4*X8* | |
24125 | & X5) | |
24126 | A22=-8D0*PQ**4*X10-2D0*PQ**2*PH**2*X10-(8D0*PQ**2)*(X3*X9+X3* | |
24127 | & X7+X4*X8+X4*X6+X10*X5)+2D0*PH**2*(X3*X7+X4*X6)-(4D0*X5)*(X3 | |
24128 | & *X9+X4*X8) | |
24129 | ||
24130 | C...Produce final result: matrix elements * propagators. | |
24131 | A11=A11/DX(7)**2 | |
24132 | A12=A12/(DX(7)*DX(8)) | |
24133 | A22=A22/DX(8)**2 | |
24134 | WTQQBH=-(A11+A22+2D0*A12)/8D0 | |
24135 | ENDIF | |
24136 | ||
24137 | RETURN | |
24138 | END | |
24139 | ||
24140 | C********************************************************************* | |
24141 | ||
24142 | C...PYMSIN | |
24143 | C...Initializes supersymmetry: finds sparticle masses and | |
24144 | C...branching ratios and stores this information. | |
24145 | C...AUTHOR: STEPHEN MRENNA | |
24146 | ||
24147 | SUBROUTINE PYMSIN | |
24148 | ||
24149 | C...Double precision and integer declarations. | |
24150 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
24151 | INTEGER PYK,PYCHGE,PYCOMP | |
24152 | C...Parameter statement to help give large particle numbers. | |
24153 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
24154 | C...Commonblocks. | |
24155 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
24156 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
24157 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
24158 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
24159 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
24160 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
24161 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
24162 | &SFMIX(16,4) | |
24163 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYPARS/,/PYINT4/,/PYMSSM/, | |
24164 | &/PYSSMT/ | |
24165 | ||
24166 | C...Local variables. | |
24167 | INTEGER NSTR | |
24168 | DOUBLE PRECISION ALFA,BETA | |
24169 | DOUBLE PRECISION TANB,AL,BE,COSA,COSB,SINA,SINB,XW,AEM,FACT | |
24170 | DOUBLE PRECISION PYALEM | |
24171 | INTEGER I,J,J1,J2,I1,I2,I3,IKNT,K1 | |
24172 | INTEGER KC,LKNT,IDLAM(200,3),IDLAM0(100,3),LKNT0 | |
24173 | DOUBLE PRECISION XLAM(0:200),XLAM0(0:200),XALL | |
24174 | DOUBLE PRECISION WDTP(0:200),WDTE(0:200,0:5) | |
24175 | DOUBLE PRECISION ATERM,TAN2T,THETA,DENOM | |
24176 | DOUBLE PRECISION XARG,COS2B,XMW2,XMZ2 | |
24177 | DOUBLE PRECISION COSW,SINW,WDMIN,WDMAX | |
24178 | DOUBLE PRECISION DELM,XMDIF,BRLIM | |
24179 | DOUBLE PRECISION DX,DY,DS,DMU2,DMA2,DQ2,DU2,DD2,DL2,DE2,DHU2,DHD2 | |
24180 | DOUBLE PRECISION ARG,SGNMU,R,GAM | |
24181 | INTEGER IS1,IS2,IS3,IS4,JS1,JS2,JS3,JS4,KS1,KS2,KS3,KS4 | |
24182 | INTEGER IMSSM,KFHIGG | |
24183 | INTEGER IRPRTY | |
24184 | INTEGER KFSUSY(36) | |
24185 | DATA KFSUSY/ | |
24186 | &1000001,2000001,1000002,2000002,1000003,2000003, | |
24187 | &1000004,2000004,1000005,2000005,1000006,2000006, | |
24188 | &1000011,2000011,1000012,2000012,1000013,2000013, | |
24189 | &1000014,2000014,1000015,2000015,1000016,2000016, | |
24190 | &1000021,1000022,1000023,1000025,1000035,1000024, | |
24191 | &1000037,1000039, 25, 35, 36, 37/ | |
24192 | ||
24193 | C...Do nothing if SUSY not requested. | |
24194 | IMSSM=IMSS(1) | |
24195 | IF(IMSSM.EQ.0) RETURN | |
24196 | ||
24197 | C...First part of routine: set masses and couplings. | |
24198 | ||
24199 | C...Reset mixing values in sfermion sector to pure left/right. | |
24200 | DO 100 I=1,16 | |
24201 | SFMIX(I,1)=1D0 | |
24202 | SFMIX(I,4)=1D0 | |
24203 | SFMIX(I,2)=0D0 | |
24204 | SFMIX(I,3)=0D0 | |
24205 | 100 CONTINUE | |
24206 | ||
24207 | C...Common couplings. | |
24208 | TANB=RMSS(5) | |
24209 | BETA=ATAN(TANB) | |
24210 | COSB=COS(BETA) | |
24211 | SINB=TANB*COSB | |
24212 | COS2B=COS(2D0*BETA) | |
24213 | ALFA=RMSS(18) | |
24214 | XMW2=PMAS(24,1)**2 | |
24215 | XMZ2=PMAS(23,1)**2 | |
24216 | XW=PARU(102) | |
24217 | ||
24218 | C...Define sparticle masses for a general MSSM simulation. | |
24219 | IF(IMSSM.EQ.1) THEN | |
24220 | IF(IMSS(9).EQ.0) RMSS(22)=RMSS(9) | |
24221 | DO 110 I=1,5,2 | |
24222 | KC=PYCOMP(KSUSY1+I) | |
24223 | PMAS(KC,1)=SQRT(RMSS(8)**2-(2D0*XMW2+XMZ2)*COS2B/6D0) | |
24224 | KC=PYCOMP(KSUSY2+I) | |
24225 | PMAS(KC,1)=SQRT(RMSS(9)**2+(XMW2-XMZ2)*COS2B/3D0) | |
24226 | KC=PYCOMP(KSUSY1+I+1) | |
24227 | PMAS(KC,1)=SQRT(RMSS(8)**2+(4D0*XMW2-XMZ2)*COS2B/6D0) | |
24228 | KC=PYCOMP(KSUSY2+I+1) | |
24229 | PMAS(KC,1)=SQRT(RMSS(22)**2-(XMW2-XMZ2)*COS2B*2D0/3D0) | |
24230 | 110 CONTINUE | |
24231 | XARG=RMSS(6)**2-PMAS(24,1)**2*ABS(COS(2D0*BETA)) | |
24232 | IF(XARG.LT.0D0) THEN | |
24233 | WRITE(MSTU(11),*) ' SNEUTRINO MASS IS NEGATIVE'// | |
24234 | & ' FROM THE SUM RULE. ' | |
24235 | WRITE(MSTU(11),*) ' TRY A SMALLER VALUE OF TAN(BETA). ' | |
24236 | RETURN | |
24237 | ELSE | |
24238 | XARG=SQRT(XARG) | |
24239 | ENDIF | |
24240 | DO 120 I=11,15,2 | |
24241 | PMAS(PYCOMP(KSUSY1+I),1)=RMSS(6) | |
24242 | PMAS(PYCOMP(KSUSY2+I),1)=RMSS(7) | |
24243 | PMAS(PYCOMP(KSUSY1+I+1),1)=XARG | |
24244 | PMAS(PYCOMP(KSUSY2+I+1),1)=9999D0 | |
24245 | 120 CONTINUE | |
24246 | IF(IMSS(8).EQ.1) THEN | |
24247 | RMSS(13)=RMSS(6) | |
24248 | RMSS(14)=RMSS(7) | |
24249 | ENDIF | |
24250 | ||
24251 | C...Alternatively derive masses from SUGRA relations. | |
24252 | ELSEIF(IMSSM.EQ.2) THEN | |
24253 | CALL PYAPPS | |
24254 | ENDIF | |
24255 | ||
24256 | C...Add in extra D-term contributions. | |
24257 | IF(IMSS(7).EQ.1) THEN | |
24258 | R=0.43D0 | |
24259 | DX=RMSS(23) | |
24260 | DY=RMSS(24) | |
24261 | DS=RMSS(25) | |
24262 | WRITE(MSTU(11),*) 'CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC' | |
24263 | WRITE(MSTU(11),*) 'C NEW DTERMS ADDED TO SCALAR MASSES ' | |
24264 | WRITE(MSTU(11),*) 'C IN A U(B-L) THEORY ' | |
24265 | WRITE(MSTU(11),*) 'C DX = ',DX | |
24266 | WRITE(MSTU(11),*) 'C DY = ',DY | |
24267 | WRITE(MSTU(11),*) 'C DS = ',DS | |
24268 | WRITE(MSTU(11),*) 'C ' | |
24269 | DY=R*DY-4D0/33D0*(1D0-R)*DX+(1D0-R)/33D0*DS | |
24270 | WRITE(MSTU(11),*) 'C DY AT THE WEAK SCALE = ',DY | |
24271 | WRITE(MSTU(11),*) 'CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC' | |
24272 | DQ2=DY/6D0-DX/3D0-DS/3D0 | |
24273 | DU2=-2D0*DY/3D0-DX/3D0-DS/3D0 | |
24274 | DD2=DY/3D0+DX-2D0*DS/3D0 | |
24275 | DL2=-DY/2D0+DX-2D0*DS/3D0 | |
24276 | DE2=DY-DX/3D0-DS/3D0 | |
24277 | DHU2=DY/2D0+2D0*DX/3D0+2D0*DS/3D0 | |
24278 | DHD2=-DY/2D0-2D0*DX/3D0+DS | |
24279 | DMU2=(-DY/2D0-2D0/3D0*DX+(COSB**2-2D0*SINB**2/3D0)*DS) | |
24280 | & /ABS(COS2B) | |
24281 | DMA2 = 2D0*DMU2+DHU2+DHD2 | |
24282 | DO 130 I=1,5,2 | |
24283 | KC=PYCOMP(KSUSY1+I) | |
24284 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DQ2) | |
24285 | KC=PYCOMP(KSUSY2+I) | |
24286 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DD2) | |
24287 | KC=PYCOMP(KSUSY1+I+1) | |
24288 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DQ2) | |
24289 | KC=PYCOMP(KSUSY2+I+1) | |
24290 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DU2) | |
24291 | 130 CONTINUE | |
24292 | DO 140 I=11,15,2 | |
24293 | KC=PYCOMP(KSUSY1+I) | |
24294 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DL2) | |
24295 | KC=PYCOMP(KSUSY2+I) | |
24296 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DE2) | |
24297 | KC=PYCOMP(KSUSY1+I+1) | |
24298 | PMAS(KC,1)=SQRT(PMAS(KC,1)**2+DL2) | |
24299 | 140 CONTINUE | |
24300 | IF(RMSS(4)**2+DMU2.LT.0D0) THEN | |
24301 | WRITE(MSTU(11),*) ' MU2 DRIVEN NEGATIVE ' | |
24302 | STOP | |
24303 | ENDIF | |
24304 | SGNMU=SIGN(1D0,RMSS(4)) | |
24305 | RMSS(4)=SGNMU*SQRT(RMSS(4)**2+DMU2) | |
24306 | ARG=RMSS(10)**2*SIGN(1D0,RMSS(10))+DQ2 | |
24307 | RMSS(10)=SIGN(SQRT(ABS(ARG)),ARG) | |
24308 | ARG=RMSS(11)**2*SIGN(1D0,RMSS(11))+DD2 | |
24309 | RMSS(11)=SIGN(SQRT(ABS(ARG)),ARG) | |
24310 | ARG=RMSS(12)**2*SIGN(1D0,RMSS(12))+DU2 | |
24311 | RMSS(12)=SIGN(SQRT(ABS(ARG)),ARG) | |
24312 | ARG=RMSS(13)**2*SIGN(1D0,RMSS(13))+DL2 | |
24313 | RMSS(13)=SIGN(SQRT(ABS(ARG)),ARG) | |
24314 | ARG=RMSS(14)**2*SIGN(1D0,RMSS(14))+DE2 | |
24315 | RMSS(14)=SIGN(SQRT(ABS(ARG)),ARG) | |
24316 | IF( RMSS(19)**2 + DMA2 .LE. 50D0 ) THEN | |
24317 | WRITE(MSTU(11),*) ' MA DRIVEN TOO LOW ' | |
24318 | STOP | |
24319 | ENDIF | |
24320 | RMSS(19)=SQRT(RMSS(19)**2+DMA2) | |
24321 | RMSS(6)=SQRT(RMSS(6)**2+DL2) | |
24322 | RMSS(7)=SQRT(RMSS(7)**2+DE2) | |
24323 | WRITE(MSTU(11),*) ' MTL = ',RMSS(10) | |
24324 | WRITE(MSTU(11),*) ' MBR = ',RMSS(11) | |
24325 | WRITE(MSTU(11),*) ' MTR = ',RMSS(12) | |
24326 | WRITE(MSTU(11),*) ' SEL = ',RMSS(6),RMSS(13) | |
24327 | WRITE(MSTU(11),*) ' SER = ',RMSS(7),RMSS(14) | |
24328 | ENDIF | |
24329 | ||
24330 | C...Fix the third generation sfermions. | |
24331 | CALL PYTHRG | |
24332 | XARG=RMSS(13)**2-PMAS(24,1)**2*ABS(COS2B) | |
24333 | IF(XARG.LT.0D0) THEN | |
24334 | WRITE(MSTU(11),*) ' TAU SNEUTRINO MASS IS NEGATIVE FROM'// | |
24335 | & ' THE SUM RULE. ' | |
24336 | WRITE(MSTU(11),*) ' TRY A SMALLER VALUE OF TAN(BETA). ' | |
24337 | RETURN | |
24338 | ELSE | |
24339 | PMAS(PYCOMP(KSUSY1+16),1)=SQRT(XARG) | |
24340 | ENDIF | |
24341 | ||
24342 | C...Fix the neutralino--chargino--gluino sector. | |
24343 | CALL PYINOM | |
24344 | ||
24345 | C...Fix the Higgs sector. | |
24346 | CALL PYHGGM(ALFA) | |
24347 | ||
24348 | C...Choose the Gunion-Haber convention. | |
24349 | ALFA=-ALFA | |
24350 | RMSS(18)=ALFA | |
24351 | ||
24352 | C...Print information on mass parameters. | |
24353 | IF(IMSSM.EQ.2.AND.MSTP(122).GT.0) THEN | |
24354 | WRITE(MSTU(11),*) 'CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC' | |
24355 | WRITE(MSTU(11),*) ' USING APPROXIMATE SUGRA RELATIONS ' | |
24356 | WRITE(MSTU(11),*) ' M0 = ',RMSS(8) | |
24357 | WRITE(MSTU(11),*) ' M1/2=',RMSS(1) | |
24358 | WRITE(MSTU(11),*) ' TANB=',RMSS(5) | |
24359 | WRITE(MSTU(11),*) ' MU = ',RMSS(4) | |
24360 | WRITE(MSTU(11),*) ' AT = ',RMSS(16) | |
24361 | WRITE(MSTU(11),*) ' MA = ',RMSS(19) | |
24362 | WRITE(MSTU(11),*) ' MTOP=',PMAS(6,1) | |
24363 | WRITE(MSTU(11),*) 'CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC' | |
24364 | ENDIF | |
24365 | IF(IMSS(20).EQ.1) THEN | |
24366 | WRITE(MSTU(11),*) 'CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC' | |
24367 | WRITE(MSTU(11),*) ' DEBUG MODE ' | |
24368 | WRITE(MSTU(11),*) ' UMIX = ',UMIX(1,1),UMIX(1,2), | |
24369 | & UMIX(2,1),UMIX(2,2) | |
24370 | WRITE(MSTU(11),*) ' VMIX = ',VMIX(1,1),VMIX(1,2), | |
24371 | & VMIX(2,1),VMIX(2,2) | |
24372 | WRITE(MSTU(11),*) ' ZMIX = ',ZMIX | |
24373 | WRITE(MSTU(11),*) ' ALFA = ',ALFA | |
24374 | WRITE(MSTU(11),*) ' BETA = ',BETA | |
24375 | WRITE(MSTU(11),*) ' STOP = ',(SFMIX(6,I),I=1,4) | |
24376 | WRITE(MSTU(11),*) ' SBOT = ',(SFMIX(5,I),I=1,4) | |
24377 | WRITE(MSTU(11),*) 'CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC' | |
24378 | ENDIF | |
24379 | ||
24380 | C...Set up the Higgs couplings - needed here since initialization | |
24381 | C...in PYINRE did not yet occur when PYWIDT is called below. | |
24382 | AL=ALFA | |
24383 | BE=BETA | |
24384 | SINA=SIN(AL) | |
24385 | COSA=COS(AL) | |
24386 | COSB=COS(BE) | |
24387 | SINB=TANB*COSB | |
24388 | C...tanb (used for H+) | |
24389 | PARU(141)=TANB | |
24390 | ||
24391 | C...Firstly: h | |
24392 | C...Coupling to d-type quarks | |
24393 | PARU(161)=SINA/COSB | |
24394 | C...Coupling to u-type quarks | |
24395 | PARU(162)=-COSA/SINB | |
24396 | C...Coupling to leptons | |
24397 | PARU(163)=PARU(161) | |
24398 | C...Coupling to Z | |
24399 | PARU(164)=SIN(BE-AL) | |
24400 | C...Coupling to W | |
24401 | PARU(165)=PARU(164) | |
24402 | C...Coupling to H+ | |
24403 | PARU(168)=-SIN(BE-AL)-COS(2D0*BE)*SIN(BE+AL)/2D0/(1D0-XW) | |
24404 | ||
24405 | C...Secondly: H | |
24406 | C...Coupling to d-type quarks | |
24407 | PARU(171)=-COSA/COSB | |
24408 | C...Coupling to u-type quarks | |
24409 | PARU(172)=-SINA/SINB | |
24410 | C...Coupling to leptons | |
24411 | PARU(173)=PARU(171) | |
24412 | C...Coupling to Z | |
24413 | PARU(174)=COS(BE-AL) | |
24414 | C...Coupling to W | |
24415 | PARU(175)=PARU(174) | |
24416 | C...Coupling to h | |
24417 | PARU(176)=COS(2D0*AL)*COS(BE+AL)-2D0*SIN(2D0*AL)*SIN(BE+AL) | |
24418 | C...Coupling to A | |
24419 | PARU(177)=COS(2D0*BE)*COS(BE+AL) | |
24420 | C...Coupling to H+ | |
24421 | PARU(178)=-COS(BE-AL)+COS(2D0*BE)*COS(BE+AL)/2D0/(1D0-XW) | |
24422 | ||
24423 | C...Thirdly, A | |
24424 | C...Coupling to d-type quarks | |
24425 | PARU(181)=TANB | |
24426 | C...Coupling to u-type quarks | |
24427 | PARU(182)=1D0/PARU(181) | |
24428 | C...Coupling to leptons | |
24429 | PARU(183)=PARU(181) | |
24430 | PARU(184)=0D0 | |
24431 | PARU(185)=0D0 | |
24432 | C...Coupling to Z h | |
24433 | PARU(186)=COS(BE-AL) | |
24434 | C...Coupling to Z H | |
24435 | PARU(187)=SIN(BE-AL) | |
24436 | PARU(188)=0D0 | |
24437 | PARU(189)=0D0 | |
24438 | PARU(190)=0D0 | |
24439 | ||
24440 | C...Finally: H+ | |
24441 | C...Coupling to W h | |
24442 | PARU(195)=COS(BE-AL) | |
24443 | ||
24444 | C...Tell that all Higgs couplings have been set. | |
24445 | MSTP(4)=1 | |
24446 | ||
24447 | C...Second part of routine: set decay modes and branching ratios. | |
24448 | ||
24449 | C...Allow chi10 -> gravitino + gamma or not. | |
24450 | KC=PYCOMP(KSUSY1+39) | |
24451 | IF( IMSS(11) .NE. 0 ) THEN | |
24452 | PMAS(KC,1)=RMSS(21)/1000000000D0 | |
24453 | PMAS(KC,2)=0.0001D0 | |
24454 | IRPRTY=0 | |
24455 | WRITE(MSTU(11),*) ' ALLOWING DECAYS TO GRAVITINOS ' | |
24456 | ELSE | |
24457 | PMAS(KC,1)=9999D0 | |
24458 | IRPRTY=1 | |
24459 | ENDIF | |
24460 | ||
24461 | C...Loop over sparticle and Higgs species. | |
24462 | PMCHI1=PMAS(PYCOMP(KSUSY1+22),1) | |
24463 | DO 200 I=1,36 | |
24464 | KF=KFSUSY(I) | |
24465 | KC=PYCOMP(KF) | |
24466 | LKNT=0 | |
24467 | ||
24468 | C...Sfermion decays. | |
24469 | IF(I.LE.24) THEN | |
24470 | C...First check to see if sneutrino is lighter than chi10. | |
24471 | IF((I.EQ.15.OR.I.EQ.19.OR.I.EQ.23).AND. | |
24472 | & PMAS(KC,1).LT.PMCHI1) THEN | |
24473 | ELSE | |
24474 | CALL PYSFDC(KF,XLAM,IDLAM,LKNT) | |
24475 | ENDIF | |
24476 | ||
24477 | C...Gluino decays. | |
24478 | ELSEIF(I.EQ.25) THEN | |
24479 | CALL PYGLUI(KF,XLAM,IDLAM,LKNT) | |
24480 | ||
24481 | C...Neutralino decays. | |
24482 | ELSEIF(I.GE.26.AND.I.LE.29) THEN | |
24483 | CALL PYNJDC(KF,XLAM,IDLAM,LKNT) | |
24484 | C...chi10 stable or chi10 -> gravitino + gamma. | |
24485 | IF(I.EQ.26.AND.IRPRTY.EQ.1) THEN | |
24486 | PMAS(KC,2)=1D-6 | |
24487 | MDCY(KC,1)=0 | |
24488 | MWID(KC)=0 | |
24489 | ENDIF | |
24490 | ||
24491 | C...Chargino decays. | |
24492 | ELSEIF(I.GE.30.AND.I.LE.31) THEN | |
24493 | CALL PYCJDC(KF,XLAM,IDLAM,LKNT) | |
24494 | ||
24495 | C...Gravitino is stable. | |
24496 | ELSEIF(I.EQ.32) THEN | |
24497 | MDCY(KC,1)=0 | |
24498 | MWID(KC)=0 | |
24499 | ||
24500 | C...Higgs decays. | |
24501 | ELSEIF(I.GE.33.AND.I.LE.36) THEN | |
24502 | C...Calculate decays to non-SUSY particles. | |
24503 | CALL PYWIDT(KF,PMAS(KC,1)**2,WDTP,WDTE) | |
24504 | LKNT=0 | |
24505 | DO 150 I1=0,100 | |
24506 | XLAM(I1)=0D0 | |
24507 | 150 CONTINUE | |
24508 | DO 170 I1=1,MDCY(KC,3) | |
24509 | K1=MDCY(KC,2)+I1-1 | |
24510 | IF(IABS(KFDP(K1,1)).GT.KSUSY1.OR. | |
24511 | & IABS(KFDP(K1,2)).GT.KSUSY1) GOTO 170 | |
24512 | XLAM(I1)=WDTP(I1) | |
24513 | XLAM(0)=XLAM(0)+XLAM(I1) | |
24514 | DO 160 J1=1,3 | |
24515 | IDLAM(I1,J1)=KFDP(K1,J1) | |
24516 | 160 CONTINUE | |
24517 | LKNT=LKNT+1 | |
24518 | 170 CONTINUE | |
24519 | C...Add the decays to SUSY particles. | |
24520 | CALL PYHEXT(KF,XLAM,IDLAM,LKNT) | |
24521 | ENDIF | |
24522 | ||
24523 | C...Set stable particles. | |
24524 | IF(LKNT.EQ.0) THEN | |
24525 | MDCY(KC,1)=0 | |
24526 | MWID(KC)=0 | |
24527 | PMAS(KC,2)=1D-6 | |
24528 | PMAS(KC,3)=1D-5 | |
24529 | PMAS(KC,4)=0D0 | |
24530 | ||
24531 | C...Store branching ratios in the standard tables. | |
24532 | ELSE | |
24533 | IDC=MDCY(KC,2)+MDCY(KC,3)-1 | |
24534 | DELM=1D6 | |
24535 | DO 190 IL=1,LKNT | |
24536 | IDCSV=IDC | |
24537 | 180 IDC=IDC+1 | |
24538 | IF(IDC.EQ.MDCY(KC,2)+MDCY(KC,3)) IDC=MDCY(KC,2) | |
24539 | IF(IDLAM(IL,1).EQ.KFDP(IDC,1).AND.IDLAM(IL,2).EQ. | |
24540 | & KFDP(IDC,2).AND.IDLAM(IL,3).EQ.KFDP(IDC,3)) THEN | |
24541 | BRAT(IDC)=XLAM(IL)/XLAM(0) | |
24542 | XMDIF=PMAS(KC,1) | |
24543 | IF(MDME(IDC,1).GE.1) THEN | |
24544 | XMDIF=XMDIF-PMAS(PYCOMP(KFDP(IDC,1)),1)- | |
24545 | & PMAS(PYCOMP(KFDP(IDC,2)),1) | |
24546 | IF(KFDP(IDC,3).NE.0) XMDIF=XMDIF- | |
24547 | & PMAS(PYCOMP(KFDP(IDC,3)),1) | |
24548 | ENDIF | |
24549 | IF(I.LE.32) THEN | |
24550 | IF(XMDIF.GE.0D0) THEN | |
24551 | DELM=MIN(DELM,XMDIF) | |
24552 | ELSE | |
24553 | WRITE(MSTU(11),*) ' ERROR WITH DELM ',DELM,XMDIF | |
24554 | WRITE(MSTU(11),*) ' KF = ',KF | |
24555 | WRITE(MSTU(11),*) ' KF(decay) = ',(KFDP(IDC,J),J=1,3) | |
24556 | ENDIF | |
24557 | ENDIF | |
24558 | GOTO 190 | |
24559 | ELSEIF(IDC.EQ.IDCSV) THEN | |
24560 | WRITE(MSTU(11),*) ' Error in PYMSIN: SUSY decay ', | |
24561 | & 'channel not recognized:' | |
24562 | WRITE(MSTU(11),*) KF,' -> ',(IDLAM(I,J),J=1,3) | |
24563 | GOTO 190 | |
24564 | ELSE | |
24565 | GOTO 180 | |
24566 | ENDIF | |
24567 | 190 CONTINUE | |
24568 | ||
24569 | C...Store width, cutoff and lifetime. | |
24570 | PMAS(KC,2)=XLAM(0) | |
24571 | IF(PMAS(KC,2).LT.0.1D0*DELM) THEN | |
24572 | PMAS(KC,3)=PMAS(KC,2)*10D0 | |
24573 | ELSE | |
24574 | PMAS(KC,3)=0.95D0*DELM | |
24575 | ENDIF | |
24576 | IF(PMAS(KC,2).NE.0D0) THEN | |
24577 | PMAS(KC,4)=PARU(3)/PMAS(KC,2)*1D-12 | |
24578 | ENDIF | |
24579 | ENDIF | |
24580 | 200 CONTINUE | |
24581 | ||
24582 | RETURN | |
24583 | END | |
24584 | ||
24585 | C********************************************************************* | |
24586 | ||
24587 | C...PYAPPS | |
24588 | C...Uses approximate analytical formulae to determine the full set of | |
24589 | C...MSSM parameters from SUGRA input. | |
24590 | C...See M. Drees and S.P. Martin, hep-ph/9504124 | |
24591 | ||
24592 | SUBROUTINE PYAPPS | |
24593 | ||
24594 | C...Double precision and integer declarations. | |
24595 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
24596 | INTEGER PYK,PYCHGE,PYCOMP | |
24597 | C...Parameter statement to help give large particle numbers. | |
24598 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
24599 | C...Commonblocks. | |
24600 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
24601 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
24602 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
24603 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/ | |
24604 | ||
24605 | XMT=PMAS(6,1) | |
24606 | XMZ2=PMAS(23,1)**2 | |
24607 | XMW2=PMAS(24,1)**2 | |
24608 | TANB=RMSS(5) | |
24609 | BETA=ATAN(TANB) | |
24610 | XW=PARU(102) | |
24611 | XMG=RMSS(1) | |
24612 | XMG2=XMG*XMG | |
24613 | XM0=RMSS(8) | |
24614 | XM02=XM0*XM0 | |
24615 | AT=-RMSS(16) | |
24616 | RMSS(15)=AT | |
24617 | RMSS(17)=AT | |
24618 | COSB=COS(BETA) | |
24619 | SINB=TANB*COSB | |
24620 | ||
24621 | DTERM=XMZ2*COS(2D0*BETA) | |
24622 | XMER=SQRT(XM02+0.15D0*XMG2-XW*DTERM) | |
24623 | XMEL=SQRT(XM02+0.52D0*XMG2-(0.5D0-XW)*DTERM) | |
24624 | RMSS(6)=XMEL | |
24625 | RMSS(7)=XMER | |
24626 | XMUR=SQRT(PYRNMQ(2,2D0/3D0*XW*DTERM)) | |
24627 | XMDR=SQRT(PYRNMQ(3,-1D0/3D0*XW*DTERM)) | |
24628 | XMUL=SQRT(PYRNMQ(1,(0.5D0-2D0/3D0*XW)*DTERM)) | |
24629 | XMDL=SQRT(PYRNMQ(1,-(0.5D0-1D0/3D0*XW)*DTERM)) | |
24630 | DO 100 I=1,5,2 | |
24631 | PMAS(PYCOMP(KSUSY1+I),1)=XMDL | |
24632 | PMAS(PYCOMP(KSUSY2+I),1)=XMDR | |
24633 | PMAS(PYCOMP(KSUSY1+I+1),1)=XMUL | |
24634 | PMAS(PYCOMP(KSUSY2+I+1),1)=XMUR | |
24635 | 100 CONTINUE | |
24636 | XARG=XMEL**2-XMW2*ABS(COS(2D0*BETA)) | |
24637 | IF(XARG.LT.0D0) THEN | |
24638 | WRITE(MSTU(11),*) ' SNEUTRINO MASS IS NEGATIVE'// | |
24639 | & ' FROM THE SUM RULE. ' | |
24640 | WRITE(MSTU(11),*) ' TRY A SMALLER VALUE OF TAN(BETA). ' | |
24641 | RETURN | |
24642 | ELSE | |
24643 | XARG=SQRT(XARG) | |
24644 | ENDIF | |
24645 | DO 110 I=11,15,2 | |
24646 | PMAS(PYCOMP(KSUSY1+I),1)=XMEL | |
24647 | PMAS(PYCOMP(KSUSY2+I),1)=XMER | |
24648 | PMAS(PYCOMP(KSUSY1+I+1),1)=XARG | |
24649 | PMAS(PYCOMP(KSUSY2+I+1),1)=9999D0 | |
24650 | 110 CONTINUE | |
24651 | XMNU=XARG | |
24652 | ||
24653 | RMT=PYRNMT(XMT) | |
24654 | XTOP=(RMT/150D0/SINB)**2*(.9D0*XM02+2.1D0*XMG2+ | |
24655 | &(1D0-(RMT/190D0/SINB)**3)*(.24D0*AT**2+AT*XMG)) | |
24656 | RMB=3D0 | |
24657 | XBOT=(RMB/150D0/COSB)**2*(.9D0*XM02+2.1D0*XMG2+ | |
24658 | &(1D0-(RMB/190D0/COSB)**3)*(.24D0*AT**2+AT*XMG)) | |
24659 | XTAU=1D-4/COSB**2*(XM02+0.15D0*XMG2+AT**2/3D0) | |
24660 | ATP=AT*(1D0-(RMT/190D0/SINB)**2)+XMG*(3.47D0-1.9D0*(RMT/190D0/ | |
24661 | &SINB)**2) | |
24662 | RMSS(16)=-ATP | |
24663 | XMU2=-XM02-0.52D0*XMG2-0.5D0*XMZ2+XTOP/(1D0-1D0/TANB**2) | |
24664 | XMA2=(XMNU**2+XMU2-XBOT-XTAU/3D0)/SINB**2 | |
24665 | XMU=SIGN(SQRT(XMU2),RMSS(4)) | |
24666 | RMSS(4)=XMU | |
24667 | RMSS(19)=SQRT(XMA2) | |
24668 | ARG=XM02+0.15D0*XMG2-2D0*XTAU/3D0-XW*DTERM | |
24669 | IF(ARG.GT.0D0) THEN | |
24670 | RMSS(14)=SQRT(ARG) | |
24671 | ELSE | |
24672 | WRITE(MSTU(11),*) ' RIGHT STAU MASS < 0 ' | |
24673 | STOP | |
24674 | ENDIF | |
24675 | ARG=XM02+0.52D0*XMG2-XTAU/3D0-(0.5D0-XW)*DTERM | |
24676 | IF(ARG.GT.0D0) THEN | |
24677 | RMSS(13)=SQRT(ARG) | |
24678 | ELSE | |
24679 | WRITE(MSTU(11),*) ' LEFT STAU MASS < 0 ' | |
24680 | STOP | |
24681 | ENDIF | |
24682 | ARG=PYRNMQ(1,-(XBOT+XTOP)/3D0) | |
24683 | IF(ARG.GT.0D0) THEN | |
24684 | RMSS(10)=SQRT(ARG) | |
24685 | ELSE | |
24686 | RMSS(10)=-SQRT(-ARG) | |
24687 | ENDIF | |
24688 | ARG=PYRNMQ(2,-2D0*XTOP/3D0) | |
24689 | IF(ARG.GT.0D0) THEN | |
24690 | RMSS(12)=SQRT(ARG) | |
24691 | ELSE | |
24692 | RMSS(12)=-SQRT(-ARG) | |
24693 | ENDIF | |
24694 | ARG=PYRNMQ(3,-2D0*XBOT/3D0) | |
24695 | IF(ARG.GT.0D0) THEN | |
24696 | RMSS(11)=SQRT(ARG) | |
24697 | ELSE | |
24698 | RMSS(11)=-SQRT(-ARG) | |
24699 | ENDIF | |
24700 | ||
24701 | RETURN | |
24702 | END | |
24703 | ||
24704 | C********************************************************************* | |
24705 | ||
24706 | C...PYRNMQ | |
24707 | C...Determines the running mass of quarks. | |
24708 | ||
24709 | FUNCTION PYRNMQ(ID,DTERM) | |
24710 | ||
24711 | C...Double precision and integer declarations. | |
24712 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
24713 | INTEGER PYK,PYCHGE,PYCOMP | |
24714 | C...Commonblock. | |
24715 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
24716 | SAVE /PYMSSM/ | |
24717 | ||
24718 | C...Local variables. | |
24719 | DOUBLE PRECISION PI,R | |
24720 | DOUBLE PRECISION TOL | |
24721 | DOUBLE PRECISION CI(3) | |
24722 | EXTERNAL PYALPS | |
24723 | DATA TOL/0.001D0/ | |
24724 | DATA PI,R/3.141592654D0,.61803399D0/ | |
24725 | DATA CI/0.47D0,0.07D0,0.02D0/ | |
24726 | ||
24727 | C=1D0-R | |
24728 | CA=CI(ID) | |
24729 | AG=(0.71D0)**2/4D0/PI | |
24730 | AG=RMSS(20) | |
24731 | XM0=RMSS(8) | |
24732 | XMG=RMSS(1) | |
24733 | XM02=XM0*XM0 | |
24734 | XMG2=XMG*XMG | |
24735 | ||
24736 | AS=PYALPS(XM02+6D0*XMG2) | |
24737 | CG=8D0/9D0*((AS/AG)**2-1D0) | |
24738 | BX=XM02+(CA+CG)*XMG2+DTERM | |
24739 | AX=MIN(50D0**2,0.5D0*BX) | |
24740 | CX=MAX(2000D0**2,2D0*BX) | |
24741 | ||
24742 | X0=AX | |
24743 | X3=CX | |
24744 | IF(ABS(CX-BX).GT.ABS(BX-AX))THEN | |
24745 | X1=BX | |
24746 | X2=BX+C*(CX-BX) | |
24747 | ELSE | |
24748 | X2=BX | |
24749 | X1=BX-C*(BX-AX) | |
24750 | ENDIF | |
24751 | AS1=PYALPS(X1) | |
24752 | CG=8D0/9D0*((AS1/AG)**2-1D0) | |
24753 | F1=ABS(XM02+(CA+CG)*XMG2+DTERM-X1) | |
24754 | AS2=PYALPS(X2) | |
24755 | CG=8D0/9D0*((AS2/AG)**2-1D0) | |
24756 | F2=ABS(XM02+(CA+CG)*XMG2+DTERM-X2) | |
24757 | 100 IF(ABS(X3-X0).GT.TOL*(ABS(X1)+ABS(X2))) THEN | |
24758 | IF(F2.LT.F1) THEN | |
24759 | X0=X1 | |
24760 | X1=X2 | |
24761 | X2=R*X1+C*X3 | |
24762 | F1=F2 | |
24763 | AS2=PYALPS(X2) | |
24764 | CG=8D0/9D0*((AS2/AG)**2-1D0) | |
24765 | F2=ABS(XM02+(CA+CG)*XMG2+DTERM-X2) | |
24766 | ELSE | |
24767 | X3=X2 | |
24768 | X2=X1 | |
24769 | X1=R*X2+C*X0 | |
24770 | F2=F1 | |
24771 | AS1=PYALPS(X1) | |
24772 | CG=8D0/9D0*((AS1/AG)**2-1D0) | |
24773 | F1=ABS(XM02+(CA+CG)*XMG2+DTERM-X1) | |
24774 | ENDIF | |
24775 | GOTO 100 | |
24776 | ENDIF | |
24777 | IF(F1.LT.F2) THEN | |
24778 | PYRNMQ=X1 | |
24779 | XMIN=X1 | |
24780 | ELSE | |
24781 | PYRNMQ=X2 | |
24782 | XMIN=X2 | |
24783 | ENDIF | |
24784 | ||
24785 | RETURN | |
24786 | END | |
24787 | ||
24788 | C********************************************************************* | |
24789 | ||
24790 | C...PYRNMT | |
24791 | C...Determines the running mass of the top quark. | |
24792 | ||
24793 | FUNCTION PYRNMT(XMT) | |
24794 | ||
24795 | C...Double precision and integer declarations. | |
24796 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
24797 | INTEGER PYK,PYCHGE,PYCOMP | |
24798 | C...Commonblock. | |
24799 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
24800 | SAVE /PYMSSM/ | |
24801 | ||
24802 | C...Local variables. | |
24803 | DOUBLE PRECISION XMT | |
24804 | DOUBLE PRECISION PI,R | |
24805 | DOUBLE PRECISION TOL | |
24806 | EXTERNAL PYALPS | |
24807 | DATA TOL/0.001D0/ | |
24808 | DATA PI,R/3.141592654D0,0.61803399D0/ | |
24809 | ||
24810 | C=1D0-R | |
24811 | ||
24812 | BX=XMT | |
24813 | AX=MIN(50D0,BX*0.5D0) | |
24814 | CX=MAX(300D0,2D0*BX) | |
24815 | ||
24816 | X0=AX | |
24817 | X3=CX | |
24818 | IF(ABS(CX-BX).GT.ABS(BX-AX))THEN | |
24819 | X1=BX | |
24820 | X2=BX+C*(CX-BX) | |
24821 | ELSE | |
24822 | X2=BX | |
24823 | X1=BX-C*(BX-AX) | |
24824 | ENDIF | |
24825 | AS1=PYALPS(X1**2)/PI | |
24826 | F1=ABS(XMT/(1D0+4D0/3D0*AS1+11D0*AS1**2)-X1) | |
24827 | AS2=PYALPS(X2**2)/PI | |
24828 | F2=ABS(XMT/(1D0+4D0/3D0*AS2+11D0*AS2**2)-X2) | |
24829 | 100 IF(ABS(X3-X0).GT.TOL*(ABS(X1)+ABS(X2))) THEN | |
24830 | IF(F2.LT.F1) THEN | |
24831 | X0=X1 | |
24832 | X1=X2 | |
24833 | X2=R*X1+C*X3 | |
24834 | F1=F2 | |
24835 | AS2=PYALPS(X2**2)/PI | |
24836 | F2=ABS(XMT/(1D0+4D0/3D0*AS2+11D0*AS2**2)-X2) | |
24837 | ELSE | |
24838 | X3=X2 | |
24839 | X2=X1 | |
24840 | X1=R*X2+C*X0 | |
24841 | F2=F1 | |
24842 | AS1=PYALPS(X1**2)/PI | |
24843 | F1=ABS(XMT/(1D0+4D0/3D0*AS1+11D0*AS1**2)-X1) | |
24844 | ENDIF | |
24845 | GOTO 100 | |
24846 | ENDIF | |
24847 | IF(F1.LT.F2) THEN | |
24848 | PYRNMT=X1 | |
24849 | XMIN=X1 | |
24850 | ELSE | |
24851 | PYRNMT=X2 | |
24852 | XMIN=X2 | |
24853 | ENDIF | |
24854 | ||
24855 | RETURN | |
24856 | END | |
24857 | ||
24858 | C********************************************************************* | |
24859 | ||
24860 | C...PYTHRG | |
24861 | C...Calculates the mass eigenstates of the third generation sfermions. | |
24862 | C...Created: 5-31-96 | |
24863 | ||
24864 | SUBROUTINE PYTHRG | |
24865 | ||
24866 | C...Double precision and integer declarations. | |
24867 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
24868 | INTEGER PYK,PYCHGE,PYCOMP | |
24869 | C...Parameter statement to help give large particle numbers. | |
24870 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
24871 | C...Commonblocks. | |
24872 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
24873 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
24874 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
24875 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
24876 | &SFMIX(16,4) | |
24877 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/ | |
24878 | ||
24879 | C...Local variables. | |
24880 | DOUBLE PRECISION BETA | |
24881 | DOUBLE PRECISION PYRNMT | |
24882 | DOUBLE PRECISION AM2(2,2),RT(2,2),DI(2,2) | |
24883 | DOUBLE PRECISION XMZ2,XMW2,TANB,XMU,COS2B,XMQL2,XMQR2 | |
24884 | DOUBLE PRECISION XMF,XMF2,DIFF,SAME,XMF12,XMF22,SMALL | |
24885 | DOUBLE PRECISION SIN2T,COS2T,TWOT,ATR,AMQR,XXX,YYY,AMQL | |
24886 | INTEGER ID1(3),ID2(3),ID3(3),ID4(3) | |
24887 | INTEGER IF,I,J,II,JJ,IT,L | |
24888 | LOGICAL DTERM | |
24889 | DATA SMALL/1D-3/ | |
24890 | DATA ID1/10,10,13/ | |
24891 | DATA ID2/5,6,15/ | |
24892 | DATA ID3/15,16,17/ | |
24893 | DATA ID4/11,12,14/ | |
24894 | DATA DTERM/.TRUE./ | |
24895 | ||
24896 | XMZ2=PMAS(23,1)**2 | |
24897 | XMW2=PMAS(24,1)**2 | |
24898 | TANB=RMSS(5) | |
24899 | XMU=-RMSS(4) | |
24900 | BETA=ATAN(TANB) | |
24901 | COS2B=COS(2D0*BETA) | |
24902 | ||
24903 | C...OPTION TO FIX T1, T2, B1 MASSES AND MIXINGS | |
24904 | ||
24905 | IOPT=IMSS(5) | |
24906 | IF(IOPT.EQ.1) THEN | |
24907 | CTT=RMSS(27) | |
24908 | CTT2=CTT**2 | |
24909 | STT2=1D0-CTT2 | |
24910 | STT=SQRT(STT2) | |
24911 | XM12=RMSS(12)**2 | |
24912 | XM22=RMSS(10)**2 | |
24913 | XMQL2=CTT2*XM12+STT2*XM22 | |
24914 | XMQR2=STT2*XM12+CTT2*XM22 | |
24915 | XMFR=PMAS(6,1) | |
24916 | XMF2=PYRNMT(XMFR)**2 | |
24917 | ATOP=-XMU/TANB+CTT*STT*(XM22-XM12)/SQRT(XMF2) | |
24918 | ATMT=SQRT(XMF2)*(ATOP+XMU/TANB) | |
24919 | XTEST=(XMQL2-XMQR2)*(CTT2-STT2) | |
24920 | IF(XTEST.GT.4D0*STT*CTT*ATMT) THEN | |
24921 | STT=-STT | |
24922 | ATOP=-XMU/TANB+CTT*STT*(XM22-XM12)/SQRT(XMF2) | |
24923 | ENDIF | |
24924 | RMSS(16)=ATOP | |
24925 | C......SUBTRACT OUT D-TERM AND FERMION MASS | |
24926 | XMQL2=XMQL2-XMF2-(4D0*XMW2-XMZ2)*COS2B/6D0 | |
24927 | XMQR2=XMQR2-XMF2+(XMW2-XMZ2)*COS2B*2D0/3D0 | |
24928 | IF(XMQL2.GE.0D0) THEN | |
24929 | RMSS(10)=SQRT(XMQL2) | |
24930 | ELSE | |
24931 | RMSS(10)=-SQRT(-XMQL2) | |
24932 | ENDIF | |
24933 | IF(XMQR2.GE.0D0) THEN | |
24934 | RMSS(12)=SQRT(XMQR2) | |
24935 | ELSE | |
24936 | RMSS(12)=-SQRT(-XMQR2) | |
24937 | ENDIF | |
24938 | C SAME FOR SBOTTOM SQUARK | |
24939 | CTT=RMSS(26) | |
24940 | CTT2=CTT**2 | |
24941 | STT2=1D0-CTT2 | |
24942 | STT=MAX(SQRT(STT2),1D-6) | |
24943 | XMF=3D00 | |
24944 | XMF2=XMF**2 | |
24945 | XM12=RMSS(11)**2 | |
24946 | XMQL2=RMSS(10)**2-(2D0*XMW2+XMZ2)*COS2B/6D0+XMF2 | |
24947 | IF(ABS(CTT).EQ.1D0) THEN | |
24948 | XM22=XM12 | |
24949 | XM12=XMQL2 | |
24950 | XMQR2=XM22 | |
24951 | ELSEIF(CTT.EQ.0D0) THEN | |
24952 | XM22=XMQL2 | |
24953 | XMQR2=XM12 | |
24954 | ELSE | |
24955 | XM22=(XMQL2-CTT2*XM12)/STT2 | |
24956 | XMQR2=STT2*XM12+CTT2*XM22 | |
24957 | ENDIF | |
24958 | ABOT=-XMU*TANB+CTT*STT*(XM22-XM12)/SQRT(XMF2) | |
24959 | ATMT=SQRT(XMF2)*(ABOT+XMU*TANB) | |
24960 | XTEST=(XMQL2-XMQR2)*(CTT2-STT2) | |
24961 | IF(XTEST.GT.4D0*STT*CTT*ATMT) THEN | |
24962 | STT=-STT | |
24963 | ABOT=-XMU*TANB+CTT*STT*(XM22-XM12)/SQRT(XMF2) | |
24964 | ENDIF | |
24965 | RMSS(15)=ABOT | |
24966 | C......SUBTRACT OUT D-TERM AND FERMION MASS | |
24967 | XMQR2=XMQR2-(XMW2-XMZ2)*COS2B/3D0-XMF2 | |
24968 | IF(XMQR2.GE.0D0) THEN | |
24969 | RMSS(11)=SQRT(XMQR2) | |
24970 | ELSE | |
24971 | RMSS(11)=-SQRT(-XMQR2) | |
24972 | ENDIF | |
24973 | ENDIF | |
24974 | ||
24975 | DO 170 L=1,3 | |
24976 | AMQL=RMSS(ID1(L)) | |
24977 | IF(AMQL.LT.0D0) THEN | |
24978 | XMQL2=-AMQL**2 | |
24979 | ELSE | |
24980 | XMQL2=AMQL**2 | |
24981 | ENDIF | |
24982 | IF=ID2(L) | |
24983 | XMF=PMAS(IF,1) | |
24984 | IF(L.EQ.1) XMF=3D0 | |
24985 | IF(L.EQ.2) XMF=PYRNMT(XMF) | |
24986 | XMF2=XMF**2 | |
24987 | ATR=RMSS(ID3(L)) | |
24988 | AMQR=RMSS(ID4(L)) | |
24989 | IF(AMQR.LT.0D0) THEN | |
24990 | XMQR2=-AMQR**2 | |
24991 | ELSE | |
24992 | XMQR2=AMQR**2 | |
24993 | ENDIF | |
24994 | AM2(1,1)=XMQL2+XMF2 | |
24995 | AM2(2,2)=XMQR2+XMF2 | |
24996 | IF(DTERM) THEN | |
24997 | IF(L.EQ.1) THEN | |
24998 | AM2(1,1)=AM2(1,1)-(2D0*XMW2+XMZ2)*COS2B/6D0 | |
24999 | AM2(2,2)=AM2(2,2)+(XMW2-XMZ2)*COS2B/3D0 | |
25000 | AM2(1,2)=XMF*(ATR+XMU*TANB) | |
25001 | ELSEIF(L.EQ.2) THEN | |
25002 | AM2(1,1)=AM2(1,1)+(4D0*XMW2-XMZ2)*COS2B/6D0 | |
25003 | AM2(2,2)=AM2(2,2)-(XMW2-XMZ2)*COS2B*2D0/3D0 | |
25004 | AM2(1,2)=XMF*(ATR+XMU/TANB) | |
25005 | ELSEIF(L.EQ.3) THEN | |
25006 | IF(IMSS(8).EQ.1) THEN | |
25007 | AM2(1,1)=RMSS(6)**2 | |
25008 | AM2(2,2)=RMSS(7)**2 | |
25009 | AM2(1,2)=0D0 | |
25010 | RMSS(13)=RMSS(6) | |
25011 | RMSS(14)=RMSS(7) | |
25012 | ELSE | |
25013 | AM2(1,2)=XMF*(ATR+XMU*TANB) | |
25014 | ENDIF | |
25015 | ENDIF | |
25016 | ENDIF | |
25017 | AM2(2,1)=AM2(1,2) | |
25018 | SAME=0.5D0*(AM2(1,1)+AM2(2,2)) | |
25019 | DIFF=0.5D0*SQRT((AM2(1,1)-AM2(2,2))**2+4D0*AM2(1,2)*AM2(2,1)) | |
25020 | XMF12=SAME-DIFF | |
25021 | XMF22=SAME+DIFF | |
25022 | IF(XMF12.LT.0D0) THEN | |
25023 | WRITE(MSTU(11),*) ' NEGATIVE**2 MASS FOR SFERMION ' | |
25024 | STOP | |
25025 | ENDIF | |
25026 | IT=0 | |
25027 | IF(XMF22-XMF12.GT.0D0) THEN | |
25028 | RT(1,1) = SQRT((XMF22-AM2(1,1))/(XMF22-XMF12)) | |
25029 | RT(2,2) = RT(1,1) | |
25030 | RT(1,2) = -SIGN(SQRT(1D0-RT(1,1)**2),AM2(1,2)/(XMF22-XMF12)) | |
25031 | RT(2,1) = -RT(1,2) | |
25032 | ELSE | |
25033 | RT(1,1) = 1D0 | |
25034 | RT(2,2) = RT(1,1) | |
25035 | RT(1,2) = 0D0 | |
25036 | RT(2,1) = -RT(1,2) | |
25037 | ENDIF | |
25038 | 100 CONTINUE | |
25039 | IT=IT+1 | |
25040 | ||
25041 | DO 140 I=1,2 | |
25042 | DO 130 JJ=1,2 | |
25043 | DI(I,JJ)=0D0 | |
25044 | DO 120 II=1,2 | |
25045 | DO 110 J=1,2 | |
25046 | DI(I,JJ)=DI(I,JJ)+RT(I,J)*AM2(J,II)*RT(JJ,II) | |
25047 | 110 CONTINUE | |
25048 | 120 CONTINUE | |
25049 | 130 CONTINUE | |
25050 | 140 CONTINUE | |
25051 | ||
25052 | IF(DI(1,1).GT.DI(2,2)) THEN | |
25053 | WRITE(MSTU(11),*) ' ERROR IN DIAGONALIZATION ' | |
25054 | WRITE(MSTU(11),*) L,SQRT(XMF12),SQRT(XMF22) | |
25055 | WRITE(MSTU(11),*) AM2 | |
25056 | WRITE(MSTU(11),*) DI | |
25057 | WRITE(MSTU(11),*) RT | |
25058 | DI(1,1)=-RT(2,1) | |
25059 | DI(2,2)=RT(1,2) | |
25060 | DI(1,2)=-RT(2,2) | |
25061 | DI(2,1)=RT(1,1) | |
25062 | DO 160 I=1,2 | |
25063 | DO 150 J=1,2 | |
25064 | RT(I,J)=DI(I,J) | |
25065 | 150 CONTINUE | |
25066 | 160 CONTINUE | |
25067 | GOTO 100 | |
25068 | ELSEIF(ABS(DI(1,2)*DI(2,1)/DI(1,1)/DI(2,2)).GT.SMALL) THEN | |
25069 | WRITE(MSTU(11),*) ' ERROR IN DIAGONALIZATION,'// | |
25070 | & ' OFF DIAGONAL ELEMENTS ' | |
25071 | WRITE(MSTU(11),*) 'MASSES = ',L,SQRT(XMF12),SQRT(XMF22) | |
25072 | WRITE(MSTU(11),*) DI | |
25073 | WRITE(MSTU(11),*) ' ROTATION = ',RT | |
25074 | C...STOP | |
25075 | ELSEIF(DI(1,1).LT.0D0.OR.DI(2,2).LT.0D0) THEN | |
25076 | WRITE(MSTU(11),*) ' ERROR IN DIAGONALIZATION,'// | |
25077 | & ' NEGATIVE MASSES ' | |
25078 | STOP | |
25079 | ENDIF | |
25080 | PMAS(PYCOMP(KSUSY1+IF),1)=SQRT(XMF12) | |
25081 | PMAS(PYCOMP(KSUSY2+IF),1)=SQRT(XMF22) | |
25082 | SFMIX(IF,1)=RT(1,1) | |
25083 | SFMIX(IF,2)=RT(1,2) | |
25084 | SFMIX(IF,3)=RT(2,1) | |
25085 | SFMIX(IF,4)=RT(2,2) | |
25086 | 170 CONTINUE | |
25087 | ||
25088 | RETURN | |
25089 | END | |
25090 | ||
25091 | C********************************************************************* | |
25092 | ||
25093 | C...PYINOM | |
25094 | C...Finds the mass eigenstates and mixing matrices for neutralinos | |
25095 | C...and charginos. | |
25096 | ||
25097 | SUBROUTINE PYINOM | |
25098 | ||
25099 | C...Double precision and integer declarations. | |
25100 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25101 | INTEGER PYK,PYCHGE,PYCOMP | |
25102 | C...Parameter statement to help give large particle numbers. | |
25103 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
25104 | C...Commonblocks. | |
25105 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
25106 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
25107 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
25108 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
25109 | &SFMIX(16,4) | |
25110 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/ | |
25111 | ||
25112 | C...Local variables. | |
25113 | DOUBLE PRECISION XMW,XMZ | |
25114 | DOUBLE PRECISION AR(4,4),WR(4),ZR(4,4) | |
25115 | DOUBLE PRECISION ZP(4,4) | |
25116 | DOUBLE PRECISION DETX,XI(2,2) | |
25117 | DOUBLE PRECISION XXX,YYY,XMH,XML | |
25118 | DOUBLE PRECISION COSW,SINW | |
25119 | DOUBLE PRECISION XMU | |
25120 | DOUBLE PRECISION TERMB,TERMC,DISCR,XMH2,XML2 | |
25121 | DOUBLE PRECISION TANB,AL,BE,COSA,COSB,SINA,SINB,XW | |
25122 | DOUBLE PRECISION XM1,XM2,XM3,BETA | |
25123 | DOUBLE PRECISION Q2,AEM,A1,A2,A3,AQ,RM1,RM2 | |
25124 | DOUBLE PRECISION ARG,X0,X1,AX0,AX1,AT,BT | |
25125 | DOUBLE PRECISION Y0,Y1,AMGX0,AM1X0,AMGX1,AM1X1 | |
25126 | DOUBLE PRECISION ARGX0,AR1X0,ARGX1,AR1X1 | |
25127 | DOUBLE PRECISION PYALPS,PYALEM | |
25128 | DOUBLE PRECISION PYRNM3 | |
25129 | INTEGER IERR,INDEX(4),I,J,K,L,IOPT,ILR,KFNCHI(4) | |
25130 | DATA KFNCHI/1000022,1000023,1000025,1000035/ | |
25131 | ||
25132 | IOPT=IMSS(2) | |
25133 | IF(IMSS(1).EQ.2) THEN | |
25134 | IOPT=1 | |
25135 | ENDIF | |
25136 | C...M1, M2, AND M3 ARE INDEPENDENT | |
25137 | IF(IOPT.EQ.0) THEN | |
25138 | XM1=RMSS(1) | |
25139 | XM2=RMSS(2) | |
25140 | XM3=RMSS(3) | |
25141 | ELSEIF(IOPT.GE.1) THEN | |
25142 | Q2=PMAS(23,1)**2 | |
25143 | AEM=PYALEM(Q2) | |
25144 | A2=AEM/PARU(102) | |
25145 | A1=AEM/(1D0-PARU(102)) | |
25146 | XM1=RMSS(1) | |
25147 | XM2=RMSS(2) | |
25148 | IF(IMSS(1).EQ.2) XM1=RMSS(1)/RMSS(20)*A1*5D0/3D0 | |
25149 | IF(IOPT.EQ.1) THEN | |
25150 | XM2=XM1*A2/A1*3D0/5D0 | |
25151 | ELSEIF(IOPT.EQ.3) THEN | |
25152 | XM1=XM2*5D0/3D0*A1/A2 | |
25153 | ENDIF | |
25154 | XM3=PYRNM3(XM2/A2) | |
25155 | IF(XM3.LE.0D0) THEN | |
25156 | WRITE(MSTU(11),*) ' ERROR WITH M3 = ',XM3 | |
25157 | STOP | |
25158 | ENDIF | |
25159 | ENDIF | |
25160 | ||
25161 | C...GLUINO MASS | |
25162 | IF(IMSS(3).EQ.1) THEN | |
25163 | PMAS(PYCOMP(KSUSY1+21),1)=XM3 | |
25164 | ELSE | |
25165 | AQ=0D0 | |
25166 | DO 110 I=1,4 | |
25167 | DO 100 ILR=1,2 | |
25168 | RM1=PMAS(PYCOMP(ILR*KSUSY1+I),1)**2/XM3**2 | |
25169 | AQ=AQ+0.5D0*((2D0-RM1)*(RM1*LOG(RM1)-1D0) | |
25170 | & +(1D0-RM1)**2*LOG(ABS(1D0-RM1))) | |
25171 | 100 CONTINUE | |
25172 | 110 CONTINUE | |
25173 | ||
25174 | DO 130 I=5,6 | |
25175 | DO 120 ILR=1,2 | |
25176 | RM1=PMAS(PYCOMP(ILR*KSUSY1+I),1)**2/XM3**2 | |
25177 | RM2=PMAS(I,1)**2/XM3**2 | |
25178 | ARG=(RM1-RM2-1D0)**2-4D0*RM2**2 | |
25179 | IF(ARG.GE.0D0) THEN | |
25180 | X0=0.5D0*(1D0+RM2-RM1-SQRT(ARG)) | |
25181 | AX0=ABS(X0) | |
25182 | X1=0.5D0*(1D0+RM2-RM1+SQRT(ARG)) | |
25183 | AX1=ABS(X1) | |
25184 | IF(X0.EQ.1D0) THEN | |
25185 | AT=-1D0 | |
25186 | BT=0.25D0 | |
25187 | ELSEIF(X0.EQ.0D0) THEN | |
25188 | AT=0D0 | |
25189 | BT=-0.25D0 | |
25190 | ELSE | |
25191 | AT=0.5D0*LOG(ABS(1D0-X0))*(1D0-X0**2)+ | |
25192 | & 0.5D0*X0**2*LOG(AX0) | |
25193 | BT=(-1D0-2D0*X0)/4D0 | |
25194 | ENDIF | |
25195 | IF(X1.EQ.1D0) THEN | |
25196 | AT=-1D0+AT | |
25197 | BT=0.25D0+BT | |
25198 | ELSEIF(X1.EQ.0D0) THEN | |
25199 | AT=0D0+AT | |
25200 | BT=-0.25D0+BT | |
25201 | ELSE | |
25202 | AT=0.5D0*LOG(ABS(1D0-X1))*(1D0-X1**2)+0.5D0* | |
25203 | & X1**2*LOG(AX1)+AT | |
25204 | BT=(-1D0-2D0*X1)/4D0+BT | |
25205 | ENDIF | |
25206 | AQ=AQ+AT+BT | |
25207 | ELSE | |
25208 | X0=0.5D0*(1D0+RM2-RM1) | |
25209 | Y0=-0.5D0*SQRT(-ARG) | |
25210 | AMGX0=SQRT(X0**2+Y0**2) | |
25211 | AM1X0=SQRT((1D0-X0)**2+Y0**2) | |
25212 | ARGX0=ATAN2(-X0,-Y0) | |
25213 | AR1X0=ATAN2(1D0-X0,Y0) | |
25214 | X1=X0 | |
25215 | Y1=-Y0 | |
25216 | AMGX1=AMGX0 | |
25217 | AM1X1=AM1X0 | |
25218 | ARGX1=ATAN2(-X1,-Y1) | |
25219 | AR1X1=ATAN2(1D0-X1,Y1) | |
25220 | AT=0.5D0*LOG(AM1X0)*(1D0-X0**2+3D0*Y0**2) | |
25221 | & +0.5D0*(X0**2-Y0**2)*LOG(AMGX0) | |
25222 | BT=(-1D0-2D0*X0)/4D0+X0*Y0*( AR1X0-ARGX0 ) | |
25223 | AT=AT+0.5D0*LOG(AM1X1)*(1D0-X1**2+3D0*Y1**2) | |
25224 | & +0.5D0*(X1**2-Y1**2)*LOG(AMGX1) | |
25225 | BT=BT+(-1D0-2D0*X1)/4D0+X1*Y1*( AR1X1-ARGX1 ) | |
25226 | AQ=AQ+AT+BT | |
25227 | ENDIF | |
25228 | 120 CONTINUE | |
25229 | 130 CONTINUE | |
25230 | PMAS(PYCOMP(KSUSY1+21),1)=XM3*(1D0+PYALPS(XM3**2)/(2D0*PARU(2))* | |
25231 | & (15D0+AQ)) | |
25232 | ENDIF | |
25233 | ||
25234 | C...NEUTRALINO MASSES | |
25235 | XMZ=PMAS(23,1) | |
25236 | XMW=PMAS(24,1) | |
25237 | XMU=RMSS(4) | |
25238 | SINW=SQRT(PARU(102)) | |
25239 | COSW=SQRT(1D0-PARU(102)) | |
25240 | TANB=RMSS(5) | |
25241 | BETA=ATAN(TANB) | |
25242 | COSB=COS(BETA) | |
25243 | SINB=TANB*COSB | |
25244 | AR(1,1) = XM1 | |
25245 | AR(2,2) = XM2 | |
25246 | AR(3,3) = 0D0 | |
25247 | AR(4,4) = 0D0 | |
25248 | AR(1,2) = 0D0 | |
25249 | AR(2,1) = 0D0 | |
25250 | AR(1,3) = -XMZ*SINW*COSB | |
25251 | AR(3,1) = AR(1,3) | |
25252 | AR(1,4) = XMZ*SINW*SINB | |
25253 | AR(4,1) = AR(1,4) | |
25254 | AR(2,3) = XMZ*COSW*COSB | |
25255 | AR(3,2) = AR(2,3) | |
25256 | AR(2,4) = -XMZ*COSW*SINB | |
25257 | AR(4,2) = AR(2,4) | |
25258 | AR(3,4) = -XMU | |
25259 | AR(4,3) = -XMU | |
25260 | CALL PYEIG4(AR,WR,ZR) | |
25261 | DO 150 I=1,4 | |
25262 | SMZ(I)=WR(I) | |
25263 | PMAS(PYCOMP(KFNCHI(I)),1)=ABS(SMZ(I)) | |
25264 | DO 140 J=1,4 | |
25265 | ZMIX(I,J)=ZR(I,J) | |
25266 | IF(ABS(ZMIX(I,J)).LT.1D-6) ZMIX(I,J)=0D0 | |
25267 | 140 CONTINUE | |
25268 | 150 CONTINUE | |
25269 | ||
25270 | C...CHARGINO MASSES | |
25271 | AR(1,1) = XM2 | |
25272 | AR(2,2) = XMU | |
25273 | AR(1,2) = SQRT(2D0)*XMW*SINB | |
25274 | AR(2,1) = SQRT(2D0)*XMW*COSB | |
25275 | TERMB=AR(1,1)**2+AR(2,2)**2+AR(1,2)**2+AR(2,1)**2 | |
25276 | TERMC=(AR(1,1)**2-AR(2,2)**2)**2+(AR(1,2)**2-AR(2,1)**2)**2 | |
25277 | TERMC=TERMC+2D0*(AR(1,1)**2+AR(2,2)**2)* | |
25278 | &(AR(1,2)**2+AR(2,1)**2)+ | |
25279 | &8D0*AR(1,1)*AR(2,2)*AR(1,2)*AR(2,1) | |
25280 | DISCR=TERMC | |
25281 | IF(DISCR.LT.0D0) THEN | |
25282 | WRITE(MSTU(11),*) ' PROBLEM WITH DISCR ' | |
25283 | ELSE | |
25284 | DISCR=SQRT(DISCR) | |
25285 | ENDIF | |
25286 | XML2=0.5D0*(TERMB-DISCR) | |
25287 | XMH2=0.5D0*(TERMB+DISCR) | |
25288 | XML=SQRT(XML2) | |
25289 | XMH=SQRT(XMH2) | |
25290 | PMAS(PYCOMP(KSUSY1+24),1)=XML | |
25291 | PMAS(PYCOMP(KSUSY1+37),1)=XMH | |
25292 | SMW(1)=XML | |
25293 | SMW(2)=XMH | |
25294 | XXX=AR(1,1)**2+AR(2,1)**2 | |
25295 | YYY=AR(1,1)*AR(1,2)+AR(2,2)*AR(2,1) | |
25296 | VMIX(2,2) = YYY/SQRT(YYY**2+(XML2-XXX)**2) | |
25297 | VMIX(1,1) = SIGN(VMIX(2,2),AR(1,1)*AR(2,2)-0.5D0*AR(1,2)**2) | |
25298 | VMIX(2,1) = -(XML2-XXX)/SQRT(YYY**2+(XML2-XXX)**2) | |
25299 | VMIX(1,2) = -SIGN(VMIX(2,1),AR(1,1)*AR(2,2)-0.5D0*AR(1,2)**2) | |
25300 | ZR(1,1) = XML | |
25301 | ZR(1,2) = 0D0 | |
25302 | ZR(2,1) = 0D0 | |
25303 | ZR(2,2) = XMH | |
25304 | DETX = AR(1,1)*AR(2,2)-AR(1,2)*AR(2,1) | |
25305 | XI(1,1) = AR(2,2)/DETX | |
25306 | XI(2,2) = AR(1,1)/DETX | |
25307 | XI(1,2) = -AR(1,2)/DETX | |
25308 | XI(2,1) = -AR(2,1)/DETX | |
25309 | DO 190 I=1,2 | |
25310 | DO 180 J=1,2 | |
25311 | UMIX(I,J)=0D0 | |
25312 | DO 170 K=1,2 | |
25313 | DO 160 L=1,2 | |
25314 | UMIX(I,J)=UMIX(I,J)+ZR(I,K)*VMIX(K,L)*XI(L,J) | |
25315 | 160 CONTINUE | |
25316 | 170 CONTINUE | |
25317 | 180 CONTINUE | |
25318 | 190 CONTINUE | |
25319 | ||
25320 | RETURN | |
25321 | END | |
25322 | ||
25323 | C********************************************************************* | |
25324 | ||
25325 | C...PYRNM3 | |
25326 | C...Calculates the running of M3, the SU(3) gluino mass parameter. | |
25327 | ||
25328 | FUNCTION PYRNM3(RGUT) | |
25329 | ||
25330 | C...Double precision and integer declarations. | |
25331 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25332 | INTEGER PYK,PYCHGE,PYCOMP | |
25333 | ||
25334 | C...Local variables. | |
25335 | DOUBLE PRECISION PI,R | |
25336 | DOUBLE PRECISION TOL | |
25337 | EXTERNAL PYALPS | |
25338 | DATA TOL/0.001D0/ | |
25339 | DATA PI,R/3.141592654D0,0.61803399D0/ | |
25340 | ||
25341 | C=1D0-R | |
25342 | ||
25343 | BX=RGUT*PYALPS(RGUT**2) | |
25344 | AX=MIN(50D0,BX*0.5D0) | |
25345 | CX=MAX(2000D0,2D0*BX) | |
25346 | ||
25347 | X0=AX | |
25348 | X3=CX | |
25349 | IF(ABS(CX-BX).GT.ABS(BX-AX))THEN | |
25350 | X1=BX | |
25351 | X2=BX+C*(CX-BX) | |
25352 | ELSE | |
25353 | X2=BX | |
25354 | X1=BX-C*(BX-AX) | |
25355 | ENDIF | |
25356 | AS1=PYALPS(X1**2) | |
25357 | F1=ABS(X1-RGUT*AS1) | |
25358 | AS2=PYALPS(X2**2) | |
25359 | F2=ABS(X2-RGUT*AS2) | |
25360 | 100 IF(ABS(X3-X0).GT.TOL*(ABS(X1)+ABS(X2))) THEN | |
25361 | IF(F2.LT.F1) THEN | |
25362 | X0=X1 | |
25363 | X1=X2 | |
25364 | X2=R*X1+C*X3 | |
25365 | F1=F2 | |
25366 | AS2=PYALPS(X2**2) | |
25367 | F2=ABS(X2-RGUT*AS2) | |
25368 | ELSE | |
25369 | X3=X2 | |
25370 | X2=X1 | |
25371 | X1=R*X2+C*X0 | |
25372 | F2=F1 | |
25373 | AS1=PYALPS(X1**2) | |
25374 | F1=ABS(X1-RGUT*AS1) | |
25375 | ENDIF | |
25376 | GOTO 100 | |
25377 | ENDIF | |
25378 | IF(F1.LT.F2) THEN | |
25379 | PYRNM3=X1 | |
25380 | XMIN=X1 | |
25381 | ELSE | |
25382 | PYRNM3=X2 | |
25383 | XMIN=X2 | |
25384 | ENDIF | |
25385 | ||
25386 | RETURN | |
25387 | END | |
25388 | ||
25389 | C********************************************************************* | |
25390 | ||
25391 | C...PYEIG4 | |
25392 | C...Finds eigenvalues and eigenvectors to a 4 * 4 matrix. | |
25393 | C...Specific application: mixing in neutralino sector. | |
25394 | ||
25395 | SUBROUTINE PYEIG4(A,W,Z) | |
25396 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25397 | INTEGER PYK,PYCHGE,PYCOMP | |
25398 | ||
25399 | C...Arrays: in call and local. | |
25400 | DIMENSION A(4,4),W(4),Z(4,4),X(4),D(4,4),E(4) | |
25401 | ||
25402 | C...Coefficients of fourth-degree equation from matrix. | |
25403 | C...x**4 + b3 * x**3 + b2 * x**2 + b1 * x + b0 = 0. | |
25404 | B3=-(A(1,1)+A(2,2)+A(3,3)+A(4,4)) | |
25405 | B2=0D0 | |
25406 | DO 110 I=1,3 | |
25407 | DO 100 J=I+1,4 | |
25408 | B2=B2+A(I,I)*A(J,J)-A(I,J)*A(J,I) | |
25409 | 100 CONTINUE | |
25410 | 110 CONTINUE | |
25411 | B1=0D0 | |
25412 | B0=0D0 | |
25413 | DO 120 I=1,4 | |
25414 | I1=MOD(I,4)+1 | |
25415 | I2=MOD(I+1,4)+1 | |
25416 | I3=MOD(I+2,4)+1 | |
25417 | B1=B1+A(I,I)*(-A(I1,I1)*A(I2,I2)+A(I1,I2)*A(I2,I1)+ | |
25418 | & A(I1,I3)*A(I3,I1)+A(I2,I3)*A(I3,I2))- | |
25419 | & A(I,I1)*A(I1,I2)*A(I2,I)-A(I,I2)*A(I2,I1)*A(I1,I) | |
25420 | B0=B0+(-1D0)**(I+1)*A(1,I)*( | |
25421 | & A(2,I1)*(A(3,I2)*A(4,I3)-A(3,I3)*A(4,I2))+ | |
25422 | & A(2,I2)*(A(3,I3)*A(4,I1)-A(3,I1)*A(4,I3))+ | |
25423 | & A(2,I3)*(A(3,I1)*A(4,I2)-A(3,I2)*A(4,I1))) | |
25424 | 120 CONTINUE | |
25425 | ||
25426 | C...Coefficients of third-degree equation needed for | |
25427 | C...separation into two second-degree equations. | |
25428 | C...u**3 + c2 * u**2 + c1 * u + c0 = 0. | |
25429 | C2=-B2 | |
25430 | C1=B1*B3-4D0*B0 | |
25431 | C0=-B1**2-B0*B3**2+4D0*B0*B2 | |
25432 | CQ=C1/3D0-C2**2/9D0 | |
25433 | CR=C1*C2/6D0-C0/2D0-C2**3/27D0 | |
25434 | CQR=CQ**3+CR**2 | |
25435 | ||
25436 | C...Cases with one or three real roots. | |
25437 | IF(CQR.GE.0D0) THEN | |
25438 | S1=(CR+SQRT(CQR))**(1D0/3D0) | |
25439 | S2=(CR-SQRT(CQR))**(1D0/3D0) | |
25440 | U=S1+S2-C2/3D0 | |
25441 | ELSE | |
25442 | SABS=SQRT(-CQ) | |
25443 | THE=ACOS(CR/SABS**3)/3D0 | |
25444 | SRE=SABS*COS(THE) | |
25445 | U=2D0*SRE-C2/3D0 | |
25446 | ENDIF | |
25447 | ||
25448 | C...Find and solve two second-degree equations. | |
25449 | P1=B3/2D0-SQRT(B3**2/4D0+U-B2) | |
25450 | P2=B3/2D0+SQRT(B3**2/4D0+U-B2) | |
25451 | Q1=U/2D0+SQRT(U**2/4D0-B0) | |
25452 | Q2=U/2D0-SQRT(U**2/4D0-B0) | |
25453 | IF(ABS(P1*Q1+P2*Q2-B1).LT.ABS(P1*Q2+P2*Q1-B1)) THEN | |
25454 | QSAV=Q1 | |
25455 | Q1=Q2 | |
25456 | Q2=QSAV | |
25457 | ENDIF | |
25458 | X(1)=-P1/2D0+SQRT(P1**2/4D0-Q1) | |
25459 | X(2)=-P1/2D0-SQRT(P1**2/4D0-Q1) | |
25460 | X(3)=-P2/2D0+SQRT(P2**2/4D0-Q2) | |
25461 | X(4)=-P2/2D0-SQRT(P2**2/4D0-Q2) | |
25462 | ||
25463 | C...Order eigenvalues in asceding mass. | |
25464 | W(1)=X(1) | |
25465 | DO 150 I1=2,4 | |
25466 | DO 130 I2=I1-1,1,-1 | |
25467 | IF(ABS(X(I1)).GE.ABS(W(I2))) GOTO 140 | |
25468 | W(I2+1)=W(I2) | |
25469 | 130 CONTINUE | |
25470 | 140 W(I2+1)=X(I1) | |
25471 | 150 CONTINUE | |
25472 | ||
25473 | C...Find equation system for eigenvectors. | |
25474 | DO 250 I=1,4 | |
25475 | DO 170 J1=1,4 | |
25476 | D(J1,J1)=A(J1,J1)-W(I) | |
25477 | DO 160 J2=J1+1,4 | |
25478 | D(J1,J2)=A(J1,J2) | |
25479 | D(J2,J1)=A(J2,J1) | |
25480 | 160 CONTINUE | |
25481 | 170 CONTINUE | |
25482 | ||
25483 | C...Find largest element in matrix. | |
25484 | DAMAX=0D0 | |
25485 | DO 190 J1=1,4 | |
25486 | DO 180 J2=1,4 | |
25487 | IF(ABS(D(J1,J2)).LE.DAMAX) GOTO 180 | |
25488 | JA=J1 | |
25489 | JB=J2 | |
25490 | DAMAX=ABS(D(J1,J2)) | |
25491 | 180 CONTINUE | |
25492 | 190 CONTINUE | |
25493 | ||
25494 | C...Subtract others by multiple of row selected above. | |
25495 | DAMAX=0D0 | |
25496 | DO 210 J3=JA+1,JA+3 | |
25497 | J1=J3-4*((J3-1)/4) | |
25498 | RL=D(J1,JB)/D(JA,JB) | |
25499 | DO 200 J2=1,4 | |
25500 | D(J1,J2)=D(J1,J2)-RL*D(JA,J2) | |
25501 | IF(ABS(D(J1,J2)).LE.DAMAX) GOTO 200 | |
25502 | JC=J1 | |
25503 | JD=J2 | |
25504 | DAMAX=ABS(D(J1,J2)) | |
25505 | 200 CONTINUE | |
25506 | 210 CONTINUE | |
25507 | ||
25508 | C...Do one more subtraction of a row. | |
25509 | DAMAX=0D0 | |
25510 | DO 230 J3=JC+1,JC+3 | |
25511 | J1=J3-4*((J3-1)/4) | |
25512 | IF(J1.EQ.JA) GOTO 230 | |
25513 | RL=D(J1,JD)/D(JC,JD) | |
25514 | DO 220 J2=1,4 | |
25515 | IF(J2.EQ.JB) GOTO 220 | |
25516 | D(J1,J2)=D(J1,J2)-RL*D(JC,J2) | |
25517 | IF(ABS(D(J1,J2)).LE.DAMAX) GOTO 220 | |
25518 | JE=J1 | |
25519 | DAMAX=ABS(D(J1,J2)) | |
25520 | 220 CONTINUE | |
25521 | 230 CONTINUE | |
25522 | ||
25523 | C...Construct unnormalized eigenvector. | |
25524 | JF1=JD+1-4*(JD/4) | |
25525 | JF2=JD+2-4*((JD+1)/4) | |
25526 | IF(JF1.EQ.JB) JF1=JD+3-4*((JD+2)/4) | |
25527 | IF(JF2.EQ.JB) JF2=JD+3-4*((JD+2)/4) | |
25528 | E(JF1)=-D(JE,JF2) | |
25529 | E(JF2)=D(JE,JF1) | |
25530 | E(JD)=-(D(JC,JF1)*E(JF1)+D(JC,JF2)*E(JF2))/D(JC,JD) | |
25531 | E(JB)=-(D(JA,JF1)*E(JF1)+D(JA,JF2)*E(JF2)+D(JA,JD)*E(JD))/ | |
25532 | & D(JA,JB) | |
25533 | ||
25534 | C...Normalize and fill in final array. | |
25535 | EA=SQRT(E(1)**2+E(2)**2+E(3)**2+E(4)**2) | |
25536 | SGN=(-1D0)**INT(PYR(0)+0.5D0) | |
25537 | DO 240 J=1,4 | |
25538 | Z(I,J)=SGN*E(J)/EA | |
25539 | 240 CONTINUE | |
25540 | 250 CONTINUE | |
25541 | ||
25542 | RETURN | |
25543 | END | |
25544 | ||
25545 | C********************************************************************* | |
25546 | ||
25547 | C...PYHGGM | |
25548 | C...Determines the Higgs boson mass spectrum using several inputs. | |
25549 | ||
25550 | SUBROUTINE PYHGGM(ALPHA) | |
25551 | ||
25552 | C...Double precision and integer declarations. | |
25553 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25554 | INTEGER PYK,PYCHGE,PYCOMP | |
25555 | C...Parameter statement to help give large particle numbers. | |
25556 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
25557 | C...Commonblocks. | |
25558 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
25559 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
25560 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
25561 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
25562 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYMSSM/ | |
25563 | ||
25564 | C...Local variables. | |
25565 | DOUBLE PRECISION AT,AB,XMU,TANB,XM32,XMT2 | |
25566 | DOUBLE PRECISION ALPHA | |
25567 | INTEGER I,J,IHOPT,II,JJ,IT | |
25568 | DOUBLE PRECISION DMA,DTANB,DMQ,DMUR,DMTOP,DAU,DAD | |
25569 | DOUBLE PRECISION DMU,DMH,DHM,DMHCH,DSA,DCA,DTANBA | |
25570 | DOUBLE PRECISION DMC,DMDR,DMHP,DHMP,DAMP | |
25571 | DOUBLE PRECISION DSTOP1,DSTOP2,DSBOT1,DSBOT2 | |
25572 | ||
25573 | IHOPT=IMSS(4) | |
25574 | IF(IHOPT.EQ.2) THEN | |
25575 | ALPHA=RMSS(18) | |
25576 | RETURN | |
25577 | ENDIF | |
25578 | AT=RMSS(16) | |
25579 | AB=RMSS(15) | |
25580 | XMU=RMSS(4) | |
25581 | TANB=RMSS(5) | |
25582 | ||
25583 | DMA=RMSS(19) | |
25584 | DTANB=TANB | |
25585 | DMQ=RMSS(10) | |
25586 | DMUR=RMSS(12) | |
25587 | DMDR=RMSS(11) | |
25588 | DMTOP=PMAS(6,1) | |
25589 | DMC=PMAS(PYCOMP(KSUSY1+37),1) | |
25590 | DAU=AT | |
25591 | DAD=AB | |
25592 | DMU=XMU | |
25593 | ||
25594 | IF(IHOPT.EQ.0) THEN | |
25595 | CALL PYSUBH (DMA,DTANB,DMQ,DMUR,DMTOP,DAU,DAD,DMU,DMH,DHM, | |
25596 | & DMHCH,DSA,DCA,DTANBA) | |
25597 | ELSEIF(IHOPT.EQ.1) THEN | |
25598 | CALL PYSUBH (DMA,DTANB,DMQ,DMUR,DMTOP,DAU,DAD,DMU,DMH,DHM, | |
25599 | & DMHCH,DSA,DCA,DTANBA) | |
25600 | CALL PYPOLE(3,DMC,DMA,DTANB,DMQ,DMUR,DMDR,DMTOP,DAU,DAD,DMU, | |
25601 | & DMH,DMHP,DHM,DHMP,DAMP,DSA,DCA, | |
25602 | & DSTOP1,DSTOP2,DSBOT1,DSBOT2,DTANBA) | |
25603 | DMH=DMHP | |
25604 | DHM=DHMP | |
25605 | DMA=DAMP | |
25606 | IF(ABS(PMAS(PYCOMP(1000006),1)-DSTOP2).GT.1D-1) THEN | |
25607 | WRITE(MSTU(11),*) ' STOP1 MASS DOES NOT MATCH IN PYHGGM ' | |
25608 | WRITE(MSTU(11),*) ' STOP1 MASSES = ', | |
25609 | & PMAS(PYCOMP(1000006),1),DSTOP2 | |
25610 | ENDIF | |
25611 | IF(ABS(PMAS(PYCOMP(2000006),1)-DSTOP1).GT.1D-1) THEN | |
25612 | WRITE(MSTU(11),*) ' STOP2 MASS DOES NOT MATCH IN PYHGGM ' | |
25613 | WRITE(MSTU(11),*) ' STOP2 MASSES = ', | |
25614 | & PMAS(PYCOMP(2000006),1),DSTOP1 | |
25615 | ENDIF | |
25616 | IF(ABS(PMAS(PYCOMP(1000005),1)-DSBOT2).GT.1D-1) THEN | |
25617 | WRITE(MSTU(11),*) ' SBOT1 MASS DOES NOT MATCH IN PYHGGM ' | |
25618 | WRITE(MSTU(11),*) ' SBOT1 MASSES = ', | |
25619 | & PMAS(PYCOMP(1000005),1),DSBOT2 | |
25620 | ENDIF | |
25621 | IF(ABS(PMAS(PYCOMP(2000005),1)-DSBOT1).GT.1D-1) THEN | |
25622 | WRITE(MSTU(11),*) ' SBOT2 MASS DOES NOT MATCH IN PYHGGM ' | |
25623 | WRITE(MSTU(11),*) ' SBOT2 MASSES = ', | |
25624 | & PMAS(PYCOMP(2000005),1),DSBOT1 | |
25625 | ENDIF | |
25626 | ||
25627 | ENDIF | |
25628 | ||
25629 | ALPHA=ACOS(DCA) | |
25630 | ||
25631 | PMAS(25,1)=DMH | |
25632 | PMAS(35,1)=DHM | |
25633 | PMAS(36,1)=DMA | |
25634 | PMAS(37,1)=DMHCH | |
25635 | ||
25636 | RETURN | |
25637 | END | |
25638 | ||
25639 | C********************************************************************* | |
25640 | ||
25641 | C...PYSUBH | |
25642 | C...This routine computes the renormalization group improved | |
25643 | C...values of Higgs masses and couplings in the MSSM. | |
25644 | ||
25645 | C...Program based on the work by M. Carena, J.R. Espinosa, | |
25646 | c...M. Quiros and C.E.M. Wagner, CERN-preprint CERN-TH/95-45 | |
25647 | ||
25648 | C...Input: MA,TANB = TAN(BETA),MQ,MUR,MTOP,AU,AD,MU | |
25649 | C...All masses in GeV units. MA is the CP-odd Higgs mass, | |
25650 | C...MTOP is the physical top mass, MQ and MUR are the soft | |
25651 | C...supersymmetry breaking mass parameters of left handed | |
25652 | C...and right handed stops respectively, AU and AD are the | |
25653 | C...stop and sbottom trilinear soft breaking terms, | |
25654 | C...respectively, and MU is the supersymmetric | |
25655 | C...Higgs mass parameter. We use the conventions from | |
25656 | C...the physics report of Haber and Kane: left right | |
25657 | C...stop mixing term proportional to (AU - MU/TANB) | |
25658 | C...We use as input TANB defined at the scale MTOP | |
25659 | ||
25660 | C...Output: MH,HM,MHCH, SA = SIN(ALPHA), CA= COS(ALPHA), TANBA | |
25661 | C...where MH and HM are the lightest and heaviest CP-even | |
25662 | C...Higgs masses, MHCH is the charged Higgs mass and | |
25663 | C...ALPHA is the Higgs mixing angle | |
25664 | C...TANBA is the angle TANB at the CP-odd Higgs mass scale | |
25665 | ||
25666 | C...Range of validity: | |
25667 | C...(STOP1**2 - STOP2**2)/(STOP2**2 + STOP1**2) < 0.5 | |
25668 | C...(SBOT1**2 - SBOT2**2)/(SBOT2**2 + SBOT2**2) < 0.5 | |
25669 | C...where STOP1, STOP2, SBOT1 and SBOT2 are the stop and | |
25670 | C...are the sbottom mass eigenvalues, respectively. This | |
25671 | C...range automatically excludes the existence of tachyons. | |
25672 | C...For the charged Higgs mass computation, the method is | |
25673 | C...valid if | |
25674 | C...2 * |MB * AD* TANB| < M_SUSY**2, 2 * |MTOP * AU| < M_SUSY**2 | |
25675 | C...2 * |MB * MU * TANB| < M_SUSY**2, 2 * |MTOP * MU| < M_SUSY**2 | |
25676 | C...where M_SUSY**2 is the average of the squared stop mass | |
25677 | C...eigenvalues, M_SUSY**2 = (STOP1**2 + STOP2**2)/2. The sbottom | |
25678 | C...masses have been assumed to be of order of the stop ones | |
25679 | C...M_SUSY**2 = (MQ**2 + MUR**2)*0.5 + MTOP**2 | |
25680 | ||
25681 | SUBROUTINE PYSUBH (XMA,TANB,XMQ,XMUR,XMTOP,AU,AD,XMU,XMH,XHM, | |
25682 | &XMHCH,SA,CA,TANBA) | |
25683 | ||
25684 | C...Double precision and integer declarations. | |
25685 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25686 | INTEGER PYK,PYCHGE,PYCOMP | |
25687 | C...Parameter statement to help give large particle numbers. | |
25688 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
25689 | C...Commonblocks. | |
25690 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
25691 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
25692 | SAVE /PYDAT1/,/PYDAT2/ | |
25693 | ||
25694 | C...Local variables. | |
25695 | DOUBLE PRECISION PYALEM,PYALPS | |
25696 | DOUBLE PRECISION TANB,XMQ,XMUR,XMTOP,AU,AD,XMU,XMH,XHM | |
25697 | DOUBLE PRECISION XMHCH,SA,CA | |
25698 | DOUBLE PRECISION XMA,AEM,ALP1,ALP2,ALPH3Z,V,PI | |
25699 | DOUBLE PRECISION Q02 | |
25700 | DOUBLE PRECISION TANBA,TANBT,XMB,ALP3 | |
25701 | DOUBLE PRECISION RMTOP,XMS,T,SINB,COSB | |
25702 | DOUBLE PRECISION XLAM1,XLAM2,XLAM3,XLAM4,XLAM5,XLAM6 | |
25703 | DOUBLE PRECISION XLAM7,XAU,XAD,G1,G2,G3,HU,HD,HU2 | |
25704 | DOUBLE PRECISION HD2,HU4,HD4,SINBT,COSBT | |
25705 | DOUBLE PRECISION TRM2,DETM2,XMH2,XHM2,XMHCH2 | |
25706 | DOUBLE PRECISION SINALP,COSALP,AUD,PI2,XMS2,XMS4,AD2 | |
25707 | DOUBLE PRECISION COS2BT,AU2,XMU2,XMZ,XMS3 | |
25708 | ||
25709 | XMZ = PMAS(23,1) | |
25710 | Q02=XMZ**2 | |
25711 | AEM=PYALEM(Q02) | |
25712 | ALP1=AEM/(1D0-PARU(102)) | |
25713 | ALP2=AEM/PARU(102) | |
25714 | ALPH3Z=PYALPS(Q02) | |
25715 | ||
25716 | ALP1 = 0.0101D0 | |
25717 | ALP2 = 0.0337D0 | |
25718 | ALPH3Z = 0.12D0 | |
25719 | ||
25720 | V = 174.1D0 | |
25721 | PI = PARU(1) | |
25722 | TANBA = TANB | |
25723 | TANBT = TANB | |
25724 | ||
25725 | C...MBOTTOM(MTOP) = 3. GEV | |
25726 | XMB = 3D0 | |
25727 | ALP3 = ALPH3Z/(1D0 +(11D0 - 10D0/3D0)/4D0/PI*ALPH3Z* | |
25728 | &LOG(XMTOP**2/XMZ**2)) | |
25729 | ||
25730 | C...RMTOP= RUNNING TOP QUARK MASS | |
25731 | RMTOP = XMTOP/(1D0+4D0*ALP3/3D0/PI) | |
25732 | XMS = ((XMQ**2 + XMUR**2)/2D0 + XMTOP**2)**0.5D0 | |
25733 | T = LOG(XMS**2/XMTOP**2) | |
25734 | SINB = TANB/((1D0 + TANB**2)**0.5D0) | |
25735 | COSB = SINB/TANB | |
25736 | C...IF(MA.LE.XMTOP) TANBA = TANBT | |
25737 | IF(XMA.GT.XMTOP) | |
25738 | &TANBA = TANBT*(1D0-3D0/32D0/PI**2* | |
25739 | &(RMTOP**2/V**2/SINB**2-XMB**2/V**2/COSB**2)* | |
25740 | &LOG(XMA**2/XMTOP**2)) | |
25741 | ||
25742 | SINBT = TANBT/SQRT(1D0 + TANBT**2) | |
25743 | COSBT = 1D0/SQRT(1D0 + TANBT**2) | |
25744 | COS2BT = (TANBT**2 - 1D0)/(TANBT**2 + 1D0) | |
25745 | G1 = SQRT(ALP1*4D0*PI) | |
25746 | G2 = SQRT(ALP2*4D0*PI) | |
25747 | G3 = SQRT(ALP3*4D0*PI) | |
25748 | HU = RMTOP/V/SINBT | |
25749 | HD = XMB/V/COSBT | |
25750 | HU2=HU*HU | |
25751 | HD2=HD*HD | |
25752 | HU4=HU2*HU2 | |
25753 | HD4=HD2*HD2 | |
25754 | AU2=AU**2 | |
25755 | AD2=AD**2 | |
25756 | XMS2=XMS**2 | |
25757 | XMS3=XMS**3 | |
25758 | XMS4=XMS2*XMS2 | |
25759 | XMU2=XMU*XMU | |
25760 | PI2=PI*PI | |
25761 | ||
25762 | XAU = (2D0*AU2/XMS2)*(1D0 - AU2/12D0/XMS2) | |
25763 | XAD = (2D0*AD2/XMS2)*(1D0 - AD2/12D0/XMS2) | |
25764 | AUD = (-6D0*XMU2/XMS2 - ( XMU2- AD*AU)**2/XMS4 | |
25765 | &+ 3D0*(AU + AD)**2/XMS2)/6D0 | |
25766 | XLAM1 = ((G1**2 + G2**2)/4D0)*(1D0-3D0*HD2*T/8D0/PI2) | |
25767 | &+(3D0*HD4/8D0/PI2) * (T + XAD/2D0 + (3D0*HD2/2D0 + HU2/2D0 | |
25768 | &- 8D0*G3**2) * (XAD*T + T**2)/16D0/PI2) | |
25769 | &-(3D0*HU4* XMU**4/96D0/PI2/XMS4) * (1+ (9D0*HU2 -5D0* HD2 | |
25770 | &- 16D0*G3**2) *T/16D0/PI2) | |
25771 | XLAM2 = ((G1**2 + G2**2)/4D0)*(1D0-3D0*HU2*T/8D0/PI2) | |
25772 | &+(3D0*HU4/8D0/PI2) * (T + XAU/2D0 + (3D0*HU2/2D0 + HD2/2D0 | |
25773 | &- 8D0*G3**2) * (XAU*T + T**2)/16D0/PI2) | |
25774 | &-(3D0*HD4* XMU**4/96D0/PI2/XMS4) * (1+ (9D0*HD2 -5D0* HU2 | |
25775 | &- 16D0*G3**2) *T/16D0/PI2) | |
25776 | XLAM3 = ((G2**2 - G1**2)/4D0)*(1D0-3D0* | |
25777 | &(HU2 + HD2)*T/16D0/PI2) | |
25778 | &+(6D0*HU2*HD2/16D0/PI2) * (T + AUD/2D0 + (HU2 + HD2 | |
25779 | &- 8D0*G3**2) * (AUD*T + T**2)/16D0/PI2) | |
25780 | &+(3D0*HU4/96D0/PI2) * (3D0*XMU2/XMS2 - XMU2*AU2/ | |
25781 | &XMS4)* (1D0+ (6D0*HU2 -2D0* HD2/2D0 | |
25782 | &- 16D0*G3**2) *T/16D0/PI2) | |
25783 | &+(3D0*HD4/96D0/PI2) * (3D0*XMU2/XMS2 - XMU2*AD2/ | |
25784 | &XMS4)*(1D0+ (6D0*HD2 -2D0* HU2 | |
25785 | &- 16D0*G3**2) *T/16D0/PI2) | |
25786 | XLAM4 = (- G2**2/2D0)*(1D0-3D0*(HU2 + HD2)*T/16D0/PI2) | |
25787 | &-(6D0*HU2*HD2/16D0/PI2) * (T + AUD/2D0 + (HU2 + HD2 | |
25788 | &- 8D0*G3**2) * (AUD*T + T**2)/16D0/PI2) | |
25789 | &+(3D0*HU4/96D0/PI2) * (3D0*XMU2/XMS2 - XMU2*AU2/ | |
25790 | &XMS4)* | |
25791 | &(1+ (6D0*HU2 -2D0* HD2 | |
25792 | &- 16D0*G3**2) *T/16D0/PI2) | |
25793 | &+(3D0*HD4/96D0/PI2) * (3D0*XMU2/XMS2 - XMU2*AD2/ | |
25794 | &XMS4)* | |
25795 | &(1+ (6D0*HD2 -2D0* HU2/2D0 | |
25796 | &- 16D0*G3**2) *T/16D0/PI2) | |
25797 | XLAM5 = -(3D0*HU4* XMU2*AU2/96D0/PI2/XMS4) * | |
25798 | &(1- (2D0*HD2 -6D0* HU2 + 16D0*G3**2) *T/16D0/PI2) | |
25799 | &-(3D0*HD4* XMU2*AD2/96D0/PI2/XMS4) * | |
25800 | &(1- (2D0*HU2 -6D0* HD2 + 16D0*G3**2) *T/16D0/PI2) | |
25801 | XLAM6 = (3D0*HU4* XMU**3*AU/96D0/PI2/XMS4) * | |
25802 | &(1- (7D0*HD2/2D0 -15D0* HU2/2D0 + 16D0*G3**2) *T/16D0/PI2) | |
25803 | &+(3D0*HD4* XMU *(AD**3/XMS3 - 6D0*AD/XMS )/96D0/PI2/XMS) * | |
25804 | &(1- (HU2/2D0 -9D0* HD2/2D0 + 16D0*G3**2) *T/16D0/PI2) | |
25805 | XLAM7 = (3D0*HD4* XMU**3*AD/96D0/PI2/XMS4) * | |
25806 | &(1- (7D0*HU2/2D0 -15D0* HD2/2D0 + 16D0*G3**2) *T/16D0/PI2) | |
25807 | &+(3D0*HU4* XMU *(AU**3/XMS3 - 6D0*AU/XMS )/96D0/PI2/XMS) * | |
25808 | &(1- (HD2/2D0 -9D0* HU2/2D0 + 16D0*G3**2) *T/16D0/PI2) | |
25809 | TRM2 = XMA**2 + 2D0*V**2* (XLAM1* COSBT**2 + | |
25810 | &2D0* XLAM6*SINBT*COSBT | |
25811 | &+ XLAM5*SINBT**2 + XLAM2* SINBT**2 + 2D0* XLAM7*SINBT*COSBT | |
25812 | &+ XLAM5*COSBT**2) | |
25813 | DETM2 = 4D0*V**4*(-(SINBT*COSBT*(XLAM3 + XLAM4) + | |
25814 | &XLAM6*COSBT**2 | |
25815 | &+ XLAM7* SINBT**2)**2 + (XLAM1* COSBT**2 + | |
25816 | &2D0* XLAM6* COSBT*SINBT | |
25817 | &+ XLAM5*SINBT**2)*(XLAM2* SINBT**2 +2D0* XLAM7* COSBT*SINBT | |
25818 | &+ XLAM5*COSBT**2)) + XMA**2*2D0*V**2 * | |
25819 | &((XLAM1* COSBT**2 +2D0* | |
25820 | &XLAM6* COSBT*SINBT + XLAM5*SINBT**2)*COSBT**2 + | |
25821 | &(XLAM2* SINBT**2 +2D0* XLAM7* COSBT*SINBT + XLAM5*COSBT**2) | |
25822 | &*SINBT**2 | |
25823 | &+2D0*SINBT*COSBT* (SINBT*COSBT*(XLAM3 | |
25824 | &+ XLAM4) + XLAM6*COSBT**2 | |
25825 | &+ XLAM7* SINBT**2)) | |
25826 | ||
25827 | XMH2 = (TRM2 - SQRT(TRM2**2 - 4D0* DETM2))/2D0 | |
25828 | XHM2 = (TRM2 + SQRT(TRM2**2 - 4D0* DETM2))/2D0 | |
25829 | XHM = SQRT(XHM2) | |
25830 | XMH = SQRT(XMH2) | |
25831 | XMHCH2 = XMA**2 + (XLAM5 - XLAM4)* V**2 | |
25832 | XMHCH = SQRT(XMHCH2) | |
25833 | ||
25834 | SINALP = SQRT(((TRM2**2 - 4D0* DETM2)**0.5D0) - | |
25835 | &((2D0*V**2*(XLAM1* COSBT**2 + 2D0* | |
25836 | &XLAM6* COSBT*SINBT | |
25837 | &+ XLAM5*SINBT**2) + XMA**2*SINBT**2) | |
25838 | &- (2D0*V**2*(XLAM2* SINBT**2 +2D0* XLAM7* COSBT*SINBT | |
25839 | &+ XLAM5*COSBT**2) + XMA**2*COSBT**2)))/ | |
25840 | &SQRT(((TRM2**2 - 4D0* DETM2)**0.5D0))/2D0**0.5D0 | |
25841 | ||
25842 | COSALP = (2D0*(2D0*V**2*(SINBT*COSBT*(XLAM3 + XLAM4) + | |
25843 | &XLAM6*COSBT**2 + XLAM7* SINBT**2) - | |
25844 | &XMA**2*SINBT*COSBT))/2D0**0.5D0/ | |
25845 | &SQRT(((TRM2**2 - 4D0* DETM2)**0.5D0)* | |
25846 | &(((TRM2**2 - 4D0* DETM2)**0.5D0) - | |
25847 | &((2D0*V**2*(XLAM1* COSBT**2 + 2D0* | |
25848 | &XLAM6* COSBT*SINBT | |
25849 | &+ XLAM5*SINBT**2) + XMA**2*SINBT**2) | |
25850 | &- (2D0*V**2*(XLAM2* SINBT**2 +2D0* XLAM7* COSBT*SINBT | |
25851 | &+ XLAM5*COSBT**2) + XMA**2*COSBT**2)))) | |
25852 | ||
25853 | SA = -SINALP | |
25854 | CA = -COSALP | |
25855 | ||
25856 | 100 CONTINUE | |
25857 | ||
25858 | RETURN | |
25859 | END | |
25860 | ||
25861 | C********************************************************************* | |
25862 | ||
25863 | C...PYPOLE | |
25864 | C...This subroutine computes the CP-even higgs and CP-odd pole | |
25865 | c...Higgs masses and mixing angles. | |
25866 | ||
25867 | C...Program based on the work by M. Carena, M. Quiros | |
25868 | C...and C.E.M. Wagner, "Effective potential methods and | |
25869 | C...the Higgs mass spectrum in the MSSM", CERN-TH/95-157 | |
25870 | ||
25871 | C...Inputs: IHIGGS(explained below),MCHI,MA,TANB,MQ,MUR,MDR,MTOP, | |
25872 | C...AT,AB,MU | |
25873 | C...where MCHI is the largest chargino mass, MA is the running | |
25874 | C...CP-odd higgs mass, TANB is the value of the ratio of vacuum | |
25875 | C...expectaion values at the scale MTOP, MQ is the third generation | |
25876 | C...left handed squark mass parameter, MUR is the third generation | |
25877 | C...right handed stop mass parameter, MDR is the third generation | |
25878 | C...right handed sbottom mass parameter, MTOP is the pole top quark | |
25879 | C...mass; AT,AB are the soft supersymmetry breaking trilinear | |
25880 | C...couplings of the stop and sbottoms, respectively, and MU is the | |
25881 | C...supersymmetric mass parameter | |
25882 | ||
25883 | C...The parameter IHIGGS=0,1,2,3 corresponds to the | |
25884 | c...number of Higgses whose pole mass is computed | |
25885 | c...by the subroutine PYVACU(...). If IHIGGS=0 only running | |
25886 | c...masses are given, what makes the running of the program | |
25887 | c...much faster and it is quite generally a good approximation | |
25888 | c...(for a theoretical discussion see ref. below). | |
25889 | c...If IHIGGS=1, only the pole | |
25890 | c...mass for H is computed. If IHIGGS=2, then h and H, and | |
25891 | c...if IHIGGS=3, then h,H,A polarizations are computed | |
25892 | ||
25893 | C...Output: MH and MHP which are the lightest CP-even Higgs running | |
25894 | C...and pole masses, respectively; HM and HMP are the heaviest CP-even | |
25895 | C...Higgs running and pole masses, repectively; SA and CA are the | |
25896 | C...SIN(ALPHA) and COS(ALPHA) where ALPHA is the Higgs mixing angle | |
25897 | C...AMP is the CP-odd Higgs pole mass. STOP1,STOP2,SBOT1 and SBOT2 | |
25898 | C...are the stop and sbottom mass eigenvalues. Finally, TANBA is | |
25899 | C...the value of TANB at the CP-odd Higgs mass scale | |
25900 | ||
25901 | C...This subroutine makes use of CERN library subroutine | |
25902 | C...integration package, which makes the computation of the | |
25903 | C...pole Higgs masses somewhat faster. We thank P. Janot for this | |
25904 | C...improvement. Those who are not able to call the CERN | |
25905 | C...libraries, please use the subroutine SUBHPOLE2.F, which | |
25906 | C...although somewhat slower, gives identical results | |
25907 | ||
25908 | SUBROUTINE PYPOLE(IHIGGS,XMC,XMA,TANB,XMQ,XMUR,XMDR,XMT,AT,AB,XMU, | |
25909 | &XMH,XMHP,HM,HMP,AMP,SA,CA,STOP1,STOP2,SBOT1,SBOT2,TANBA) | |
25910 | ||
25911 | C...Double precision and integer declarations. | |
25912 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25913 | INTEGER PYK,PYCHGE,PYCOMP | |
25914 | ||
25915 | CALL PYVACU(IHIGGS,XMC,XMA,TANB,XMQ,XMUR,XMDR,XMT,AT,AB,XMU, | |
25916 | &XMH,XMHP,HM,HMP,AMP,STOP1,STOP2,SBOT1,SBOT2, | |
25917 | &SA,CA,STOP1W,STOP2W,TANBA) | |
25918 | SINB = TANB/(TANB**2+1D0)**0.5D0 | |
25919 | COSB = 1D0/(TANB**2+1D0)**0.5D0 | |
25920 | SINBMA = SINB*CA - COSB*SA | |
25921 | ||
25922 | RETURN | |
25923 | END | |
25924 | ||
25925 | C********************************************************************* | |
25926 | ||
25927 | C...PYVACU | |
25928 | C...Computes Higgs masses and mixing angles, see PYPOLE above. | |
25929 | ||
25930 | SUBROUTINE PYVACU(IHIGGS,XMC,XMA,TANB,XMQ,XMUR,XMDR, | |
25931 | &XMT,AT,AB,XMU,XMH,XMHP,HM,HMP,AMP,STOP1,STOP2, | |
25932 | &SBOT1,SBOT2,SA,CA,STOP1W,STOP2W,TANBA) | |
25933 | ||
25934 | C...Double precision and integer declarations. | |
25935 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
25936 | C...Parameters. | |
25937 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
25938 | INTEGER PYK,PYCHGE,PYCOMP | |
25939 | ||
25940 | C...Local variables. | |
25941 | DIMENSION DELTA(2,2),COUPT(2,2),T(2,2),SSTOP2(2), | |
25942 | &SSBOT2(2),B(2,2),COUPB(2,2), | |
25943 | &HCOUPT(2,2),HCOUPB(2,2), | |
25944 | &ACOUPT(2,2),ACOUPB(2,2),PR(3), POLAR(3) | |
25945 | ||
25946 | DELTA(1,1) = 1D0 | |
25947 | DELTA(2,2) = 1D0 | |
25948 | DELTA(1,2) = 0D0 | |
25949 | DELTA(2,1) = 0D0 | |
25950 | V = 174.1D0 | |
25951 | XMZ=91.18D0 | |
25952 | PI=3.14159D0 | |
25953 | ALP3Z=0.12D0 | |
25954 | ALP3=1D0/(1D0/ALP3Z+23D0/6D0/PI*LOG(XMT/XMZ)) | |
25955 | ||
25956 | C RXMT = XMT/(1D0+4*ALP3/3D0/PI) | |
25957 | RXMT = PYRNMT(XMT) | |
25958 | ||
25959 | HT = RXMT /V | |
25960 | CALL PYRGHM(XMC,XMA,TANB,XMQ,XMUR,XMDR,XMT,AT,AB, | |
25961 | &XMU,XMH,HM,SA,CA,TANBA) | |
25962 | SINB = TANB/(TANB**2+1D0)**0.5D0 | |
25963 | COSB = 1D0/(TANB**2+1D0)**0.5D0 | |
25964 | COS2B = SINB**2 - COSB**2 | |
25965 | SINBPA = SINB*CA + COSB*SA | |
25966 | COSBPA = COSB*CA - SINB*SA | |
25967 | RMBOT = 3D0 | |
25968 | XMQ2 = XMQ**2 | |
25969 | XMUR2 = XMUR**2 | |
25970 | IF(XMUR.LT.0D0) XMUR2=-XMUR2 | |
25971 | XMDR2 = XMDR**2 | |
25972 | XMST11 = RXMT**2 + XMQ2 - 0.35D0*XMZ**2*COS2B | |
25973 | XMST22 = RXMT**2 + XMUR2 - 0.15D0*XMZ**2*COS2B | |
25974 | IF(XMST11.LT.0D0) GOTO 500 | |
25975 | IF(XMST22.LT.0D0) GOTO 500 | |
25976 | XMSB11 = RMBOT**2 + XMQ2 + 0.42D0*XMZ**2*COS2B | |
25977 | XMSB22 = RMBOT**2 + XMDR2 + 0.08D0*XMZ**2*COS2B | |
25978 | IF(XMSB11.LT.0D0) GOTO 500 | |
25979 | IF(XMSB22.LT.0D0) GOTO 500 | |
25980 | WMST11 = RXMT**2 + XMQ2 | |
25981 | WMST22 = RXMT**2 + XMUR2 | |
25982 | XMST12 = RXMT*(AT - XMU/TANB) | |
25983 | XMSB12 = RMBOT*(AB - XMU*TANB) | |
25984 | ||
25985 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
25986 | C...STOP EIGENVALUES CALCULATION | |
25987 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
25988 | ||
25989 | STOP12 = 0.5D0*(XMST11+XMST22) + | |
25990 | &0.5D0*((XMST11+XMST22)**2 - | |
25991 | &4D0*(XMST11*XMST22 - XMST12**2))**0.5D0 | |
25992 | STOP22 = 0.5D0*(XMST11+XMST22) - | |
25993 | &0.5D0*((XMST11+XMST22)**2 - 4D0*(XMST11*XMST22 - | |
25994 | &XMST12**2))**0.5D0 | |
25995 | ||
25996 | IF(STOP22.LT.0D0) GOTO 500 | |
25997 | SSTOP2(1) = STOP12 | |
25998 | SSTOP2(2) = STOP22 | |
25999 | STOP1 = STOP12**0.5D0 | |
26000 | STOP2 = STOP22**0.5D0 | |
26001 | STOP1W = STOP1 | |
26002 | STOP2W = STOP2 | |
26003 | ||
26004 | IF(XMST12.EQ.0D0) XST11 = 1D0 | |
26005 | IF(XMST12.EQ.0D0) XST12 = 0D0 | |
26006 | IF(XMST12.EQ.0D0) XST21 = 0D0 | |
26007 | IF(XMST12.EQ.0D0) XST22 = 1D0 | |
26008 | ||
26009 | IF(XMST12.EQ.0D0) GOTO 110 | |
26010 | ||
26011 | 100 XST11 = XMST12/(XMST12**2+(XMST11-STOP12)**2)**0.5D0 | |
26012 | XST12 = - (XMST11-STOP12)/(XMST12**2+(XMST11-STOP12)**2)**0.5D0 | |
26013 | XST21 = XMST12/(XMST12**2+(XMST11-STOP22)**2)**0.5D0 | |
26014 | XST22 = - (XMST11-STOP22)/(XMST12**2+(XMST11-STOP22)**2)**0.5D0 | |
26015 | ||
26016 | 110 T(1,1) = XST11 | |
26017 | T(2,2) = XST22 | |
26018 | T(1,2) = XST12 | |
26019 | T(2,1) = XST21 | |
26020 | ||
26021 | SBOT12 = 0.5D0*(XMSB11+XMSB22) + | |
26022 | &0.5D0*((XMSB11+XMSB22)**2 - | |
26023 | &4D0*(XMSB11*XMSB22 - XMSB12**2))**0.5D0 | |
26024 | SBOT22 = 0.5D0*(XMSB11+XMSB22) - | |
26025 | &0.5D0*((XMSB11+XMSB22)**2 - 4D0*(XMSB11*XMSB22 - | |
26026 | &XMSB12**2))**0.5D0 | |
26027 | IF(SBOT22.LT.0D0) GOTO 500 | |
26028 | SBOT1 = SBOT12**0.5D0 | |
26029 | SBOT2 = SBOT22**0.5D0 | |
26030 | ||
26031 | SSBOT2(1) = SBOT12 | |
26032 | SSBOT2(2) = SBOT22 | |
26033 | ||
26034 | IF(XMSB12.EQ.0D0) XSB11 = 1D0 | |
26035 | IF(XMSB12.EQ.0D0) XSB12 = 0D0 | |
26036 | IF(XMSB12.EQ.0D0) XSB21 = 0D0 | |
26037 | IF(XMSB12.EQ.0D0) XSB22 = 1D0 | |
26038 | ||
26039 | IF(XMSB12.EQ.0D0) GOTO 130 | |
26040 | ||
26041 | 120 XSB11 = XMSB12/(XMSB12**2+(XMSB11-SBOT12)**2)**0.5D0 | |
26042 | XSB12 = - (XMSB11-SBOT12)/(XMSB12**2+(XMSB11-SBOT12)**2)**0.5D0 | |
26043 | XSB21 = XMSB12/(XMSB12**2+(XMSB11-SBOT22)**2)**0.5D0 | |
26044 | XSB22 = - (XMSB11-SBOT22)/(XMSB12**2+(XMSB11-SBOT22)**2)**0.5D0 | |
26045 | ||
26046 | 130 B(1,1) = XSB11 | |
26047 | B(2,2) = XSB22 | |
26048 | B(1,2) = XSB12 | |
26049 | B(2,1) = XSB21 | |
26050 | ||
26051 | ||
26052 | SINT = 0.2320D0 | |
26053 | SQR = 2D0**0.5D0 | |
26054 | VP = 174.1D0*SQR | |
26055 | ||
26056 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26057 | C...STARTING OF LIGHT HIGGS | |
26058 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26059 | ||
26060 | IF(IHIGGS.EQ.0) GOTO 490 | |
26061 | ||
26062 | DO 150 I = 1,2 | |
26063 | DO 140 J = 1,2 | |
26064 | COUPT(I,J) = | |
26065 | & SINT*XMZ**2*2D0*SQR/174.1D0/3D0*SINBPA*(DELTA(I,J) + | |
26066 | & (3D0 - 8D0*SINT)/4D0/SINT*T(1,I)*T(1,J)) | |
26067 | & -RXMT**2/174.1D0**2*VP/SINB*CA*DELTA(I,J) | |
26068 | & -RXMT/VP/SINB*(AT*CA + XMU*SA)*(T(1,I)*T(2,J) + | |
26069 | & T(1,J)*T(2,I)) | |
26070 | 140 CONTINUE | |
26071 | 150 CONTINUE | |
26072 | ||
26073 | ||
26074 | DO 170 I = 1,2 | |
26075 | DO 160 J = 1,2 | |
26076 | COUPB(I,J) = | |
26077 | & -SINT*XMZ**2*2D0*SQR/174.1D0/6D0*SINBPA*(DELTA(I,J) + | |
26078 | & (3D0 - 4D0*SINT)/2D0/SINT*B(1,I)*B(1,J)) | |
26079 | & +RMBOT**2/174.1D0**2*VP/COSB*SA*DELTA(I,J) | |
26080 | & +RMBOT/VP/COSB*(AB*SA + XMU*CA)*(B(1,I)*B(2,J) + | |
26081 | & B(1,J)*B(2,I)) | |
26082 | 160 CONTINUE | |
26083 | 170 CONTINUE | |
26084 | ||
26085 | PRUN = XMH | |
26086 | EPS = 1D-4*PRUN | |
26087 | ITER = 0 | |
26088 | 180 ITER = ITER + 1 | |
26089 | DO 230 I3 = 1,3 | |
26090 | ||
26091 | PR(I3)=PRUN+(I3-2)*EPS/2 | |
26092 | P2=PR(I3)**2 | |
26093 | POLT = 0D0 | |
26094 | DO 200 I = 1,2 | |
26095 | DO 190 J = 1,2 | |
26096 | POLT = POLT + COUPT(I,J)**2*3D0* | |
26097 | & PYFINT(P2,SSTOP2(I),SSTOP2(J))/16D0/PI**2 | |
26098 | 190 CONTINUE | |
26099 | 200 CONTINUE | |
26100 | POLB = 0D0 | |
26101 | DO 220 I = 1,2 | |
26102 | DO 210 J = 1,2 | |
26103 | POLB = POLB + COUPB(I,J)**2*3D0* | |
26104 | & PYFINT(P2,SSBOT2(I),SSBOT2(J))/16D0/PI**2 | |
26105 | 210 CONTINUE | |
26106 | 220 CONTINUE | |
26107 | RXMT2 = RXMT**2 | |
26108 | XMT2=XMT**2 | |
26109 | ||
26110 | POLTT = | |
26111 | & 3D0*RXMT**2/8D0/PI**2/ V **2* | |
26112 | & CA**2/SINB**2 * | |
26113 | & (-2D0*XMT**2+0.5D0*P2)* | |
26114 | & PYFINT(P2,XMT2,XMT2) | |
26115 | ||
26116 | POL = POLT + POLB + POLTT | |
26117 | POLAR(I3) = P2 - XMH**2 - POL | |
26118 | 230 CONTINUE | |
26119 | DERIV = (POLAR(3)-POLAR(1))/EPS | |
26120 | DRUN = - POLAR(2)/DERIV | |
26121 | PRUN = PRUN + DRUN | |
26122 | P2 = PRUN**2 | |
26123 | IF( ABS(DRUN) .LT. 1D-4 ) GOTO 240 | |
26124 | GOTO 180 | |
26125 | 240 CONTINUE | |
26126 | ||
26127 | XMHP = P2**0.5D0 | |
26128 | ||
26129 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26130 | C...END OF LIGHT HIGGS | |
26131 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26132 | ||
26133 | 250 IF(IHIGGS.EQ.1) GOTO 490 | |
26134 | ||
26135 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26136 | C... STARTING OF HEAVY HIGGS | |
26137 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26138 | ||
26139 | DO 270 I = 1,2 | |
26140 | DO 260 J = 1,2 | |
26141 | HCOUPT(I,J) = | |
26142 | & -SINT*XMZ**2*2D0*SQR/174.1D0/3D0*COSBPA*(DELTA(I,J) + | |
26143 | & (3D0 - 8D0*SINT)/4D0/SINT*T(1,I)*T(1,J)) | |
26144 | & -RXMT**2/174.1D0**2*VP/SINB*SA*DELTA(I,J) | |
26145 | & -RXMT/VP/SINB*(AT*SA - XMU*CA)*(T(1,I)*T(2,J) + | |
26146 | & T(1,J)*T(2,I)) | |
26147 | 260 CONTINUE | |
26148 | 270 CONTINUE | |
26149 | ||
26150 | DO 290 I = 1,2 | |
26151 | DO 280 J = 1,2 | |
26152 | HCOUPB(I,J) = | |
26153 | & SINT*XMZ**2*2D0*SQR/174.1D0/6D0*COSBPA*(DELTA(I,J) + | |
26154 | & (3D0 - 4D0*SINT)/2D0/SINT*B(1,I)*B(1,J)) | |
26155 | & -RMBOT**2/174.1D0**2*VP/COSB*CA*DELTA(I,J) | |
26156 | & -RMBOT/VP/COSB*(AB*CA - XMU*SA)*(B(1,I)*B(2,J) + | |
26157 | & B(1,J)*B(2,I)) | |
26158 | HCOUPB(I,J)=0D0 | |
26159 | 280 CONTINUE | |
26160 | 290 CONTINUE | |
26161 | ||
26162 | PRUN = HM | |
26163 | EPS = 1D-4*PRUN | |
26164 | ITER = 0 | |
26165 | 300 ITER = ITER + 1 | |
26166 | DO 350 I3 = 1,3 | |
26167 | PR(I3)=PRUN+(I3-2)*EPS/2 | |
26168 | HP2=PR(I3)**2 | |
26169 | ||
26170 | HPOLT = 0D0 | |
26171 | DO 320 I = 1,2 | |
26172 | DO 310 J = 1,2 | |
26173 | HPOLT = HPOLT + HCOUPT(I,J)**2*3D0* | |
26174 | & PYFINT(HP2,SSTOP2(I),SSTOP2(J))/16D0/PI**2 | |
26175 | 310 CONTINUE | |
26176 | 320 CONTINUE | |
26177 | ||
26178 | HPOLB = 0D0 | |
26179 | DO 340 I = 1,2 | |
26180 | DO 330 J = 1,2 | |
26181 | HPOLB = HPOLB + HCOUPB(I,J)**2*3D0* | |
26182 | & PYFINT(HP2,SSBOT2(I),SSBOT2(J))/16D0/PI**2 | |
26183 | 330 CONTINUE | |
26184 | 340 CONTINUE | |
26185 | ||
26186 | RXMT2 = RXMT**2 | |
26187 | XMT2 = XMT**2 | |
26188 | ||
26189 | HPOLTT = | |
26190 | & 3D0*RXMT**2/8D0/PI**2/ V **2* | |
26191 | & SA**2/SINB**2 * | |
26192 | & (-2D0*XMT**2+0.5D0*HP2)* | |
26193 | & PYFINT(HP2,XMT2,XMT2) | |
26194 | ||
26195 | HPOL = HPOLT + HPOLB + HPOLTT | |
26196 | POLAR(I3) =HP2-HM**2-HPOL | |
26197 | 350 CONTINUE | |
26198 | DERIV = (POLAR(3)-POLAR(1))/EPS | |
26199 | DRUN = - POLAR(2)/DERIV | |
26200 | PRUN = PRUN + DRUN | |
26201 | HP2 = PRUN**2 | |
26202 | IF( ABS(DRUN) .LT. 1D-4 ) GOTO 360 | |
26203 | GOTO 300 | |
26204 | 360 CONTINUE | |
26205 | ||
26206 | ||
26207 | 370 CONTINUE | |
26208 | HMP = HP2**0.5D0 | |
26209 | ||
26210 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26211 | C... END OF HEAVY HIGGS | |
26212 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26213 | ||
26214 | IF(IHIGGS.EQ.2) GOTO 490 | |
26215 | ||
26216 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26217 | C...BEGINNING OF PSEUDOSCALAR HIGGS | |
26218 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26219 | ||
26220 | DO 390 I = 1,2 | |
26221 | DO 380 J = 1,2 | |
26222 | ACOUPT(I,J) = | |
26223 | & -RXMT/VP/SINB*(AT*COSB + XMU*SINB)* | |
26224 | & (T(1,I)*T(2,J) -T(1,J)*T(2,I)) | |
26225 | 380 CONTINUE | |
26226 | 390 CONTINUE | |
26227 | DO 410 I = 1,2 | |
26228 | DO 400 J = 1,2 | |
26229 | ACOUPB(I,J) = | |
26230 | & RMBOT/VP/COSB*(AB*SINB + XMU*COSB)* | |
26231 | & (B(1,I)*B(2,J) -B(1,J)*B(2,I)) | |
26232 | 400 CONTINUE | |
26233 | 410 CONTINUE | |
26234 | ||
26235 | PRUN = XMA | |
26236 | EPS = 1D-4*PRUN | |
26237 | ITER = 0 | |
26238 | 420 ITER = ITER + 1 | |
26239 | DO 470 I3 = 1,3 | |
26240 | PR(I3)=PRUN+(I3-2)*EPS/2 | |
26241 | AP2=PR(I3)**2 | |
26242 | APOLT = 0D0 | |
26243 | DO 440 I = 1,2 | |
26244 | DO 430 J = 1,2 | |
26245 | APOLT = APOLT + ACOUPT(I,J)**2*3D0* | |
26246 | & PYFINT(AP2,SSTOP2(I),SSTOP2(J))/16D0/PI**2 | |
26247 | 430 CONTINUE | |
26248 | 440 CONTINUE | |
26249 | APOLB = 0D0 | |
26250 | DO 460 I = 1,2 | |
26251 | DO 450 J = 1,2 | |
26252 | APOLB = APOLB + ACOUPB(I,J)**2*3D0* | |
26253 | & PYFINT(AP2,SSBOT2(I),SSBOT2(J))/16D0/PI**2 | |
26254 | 450 CONTINUE | |
26255 | 460 CONTINUE | |
26256 | RXMT2 = RXMT**2 | |
26257 | XMT2=XMT**2 | |
26258 | APOLTT = | |
26259 | & 3D0*RXMT**2/8D0/PI**2/ V **2* | |
26260 | & COSB**2/SINB**2 * | |
26261 | & (-0.5D0*AP2)* | |
26262 | & PYFINT(AP2,XMT2,XMT2) | |
26263 | APOL = APOLT + APOLB + APOLTT | |
26264 | POLAR(I3) = AP2 - XMA**2 -APOL | |
26265 | 470 CONTINUE | |
26266 | DERIV = (POLAR(3)-POLAR(1))/EPS | |
26267 | DRUN = - POLAR(2)/DERIV | |
26268 | PRUN = PRUN + DRUN | |
26269 | AP2 = PRUN**2 | |
26270 | IF( ABS(DRUN) .LT. 1D-4 ) GOTO 480 | |
26271 | GOTO 420 | |
26272 | 480 CONTINUE | |
26273 | ||
26274 | AMP = AP2**0.5D0 | |
26275 | ||
26276 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26277 | C...END OF PSEUDOSCALAR HIGGS | |
26278 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26279 | ||
26280 | IF(IHIGGS.EQ.3) GOTO 490 | |
26281 | ||
26282 | 490 CONTINUE | |
26283 | RETURN | |
26284 | 500 CONTINUE | |
26285 | WRITE(MSTU(11),*) ' EXITING IN PYVACU ' | |
26286 | WRITE(MSTU(11),*) ' XMST11,XMST22 = ',XMST11,XMST22 | |
26287 | WRITE(MSTU(11),*) ' XMSB11,XMSB22 = ',XMSB11,XMSB22 | |
26288 | WRITE(MSTU(11),*) ' STOP22,SBOT22 = ',STOP22,SBOT22 | |
26289 | STOP | |
26290 | END | |
26291 | ||
26292 | C********************************************************************* | |
26293 | ||
26294 | C...PYRGHM | |
26295 | C...Auxiliary routine to PYVACU for SUSY Higgs calculations. | |
26296 | ||
26297 | SUBROUTINE PYRGHM(XMC,XMA,TANB,XMQ,XMUR,XMDL,XMT,AU,AD,XMU, | |
26298 | &XMHP,HMP,SA,CA,TANBA) | |
26299 | ||
26300 | C...Double precision and integer declarations. | |
26301 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
26302 | INTEGER PYK,PYCHGE,PYCOMP | |
26303 | ||
26304 | C...Local variables. | |
26305 | DIMENSION VH(2,2),XM2(2,2),XM2P(2,2) | |
26306 | ||
26307 | XMZ = 91.18D0 | |
26308 | ALP1 = 0.0101D0 | |
26309 | ALP2 = 0.0337D0 | |
26310 | ALP3Z = 0.12D0 | |
26311 | V = 174.1D0 | |
26312 | PI = 3.14159D0 | |
26313 | TANBA = TANB | |
26314 | TANBT = TANB | |
26315 | ||
26316 | C...MBOTTOM(XMT) = 3. GEV | |
26317 | XMB = 3D0 | |
26318 | ALP3 = ALP3Z/(1D0 +(11D0 - 10D0/3D0)/4D0/PI*ALP3Z* | |
26319 | &LOG(XMT**2/XMZ**2)) | |
26320 | ||
26321 | C...RXMT= RUNNING TOP QUARK MASS | |
26322 | RXMT = XMT/(1D0+4D0*ALP3/3D0/PI) | |
26323 | TQ = LOG((XMQ**2+XMT**2)/XMT**2) | |
26324 | TU = LOG((XMUR**2 + XMT**2)/XMT**2) | |
26325 | TD = LOG((XMDL**2 + XMT**2)/XMT**2) | |
26326 | SINB = TANB/((1D0 + TANB**2)**0.5D0) | |
26327 | COSB = SINB/TANB | |
26328 | IF(XMA.GT.XMT) | |
26329 | &TANBA = TANB*(1D0-3D0/32D0/PI**2* | |
26330 | &(RXMT**2/V**2/SINB**2-XMB**2/V**2/COSB**2)* | |
26331 | &LOG(XMA**2/XMT**2)) | |
26332 | IF(XMA.LT.XMT.OR.XMA.EQ.XMT) TANBT = TANBA | |
26333 | SINB = TANBT/((1D0 + TANBT**2)**0.5D0) | |
26334 | COSB = 1D0/((1D0 + TANBT**2)**0.5D0) | |
26335 | COS2B = (TANBT**2 - 1D0)/(TANBT**2 + 1D0) | |
26336 | G1 = (ALP1*4D0*PI)**0.5D0 | |
26337 | G2 = (ALP2*4D0*PI)**0.5D0 | |
26338 | G3 = (ALP3*4D0*PI)**0.5D0 | |
26339 | HU = RXMT/V/SINB | |
26340 | HD = XMB/V/COSB | |
26341 | ||
26342 | CALL PYGFXX(XMA,TANBA,XMQ,XMUR,XMDL,XMT,AU,AD, | |
26343 | &XMU,VH,STOP1,STOP2) | |
26344 | ||
26345 | IF(XMQ.GT.XMUR) TP = TQ - TU | |
26346 | IF(XMQ.LT.XMUR.OR.XMQ.EQ.XMUR) TP = TU - TQ | |
26347 | IF(XMQ.GT.XMUR) TDP = TU | |
26348 | IF(XMQ.LT.XMUR.OR.XMQ.EQ.XMUR) TDP = TQ | |
26349 | IF(XMQ.GT.XMDL) TPD = TQ - TD | |
26350 | IF(XMQ.LT.XMDL.OR.XMQ.EQ.XMDL) TPD = TD - TQ | |
26351 | IF(XMQ.GT.XMDL) TDPD = TD | |
26352 | IF(XMQ.LT.XMDL.OR.XMQ.EQ.XMDL) TDPD = TQ | |
26353 | ||
26354 | IF(XMQ.GT.XMDL) DLAM1 = 6D0/96D0/PI**2*G1**2*HD**2*TPD | |
26355 | IF(XMQ.LT.XMDL.OR.XMQ.EQ.XMDL) DLAM1 = 3D0/32D0/PI**2* | |
26356 | &HD**2*(G1**2/3D0+G2**2)*TPD | |
26357 | ||
26358 | IF(XMQ.GT.XMUR) DLAM2 =12D0/96D0/PI**2*G1**2*HU**2*TP | |
26359 | IF(XMQ.LT.XMUR.OR.XMQ.EQ.XMUR) DLAM2 = 3D0/32D0/PI**2* | |
26360 | &HU**2*(-G1**2/3D0+G2**2)*TP | |
26361 | ||
26362 | DLAM3 = 0D0 | |
26363 | DLAM4 = 0D0 | |
26364 | ||
26365 | IF(XMQ.GT.XMDL) DLAM3 = -1D0/32D0/PI**2*G1**2*HD**2*TPD | |
26366 | IF(XMQ.LT.XMDL.OR.XMQ.EQ.XMDL) DLAM3 = 3D0/64D0/PI**2*HD**2* | |
26367 | &(G2**2-G1**2/3D0)*TPD | |
26368 | ||
26369 | IF(XMQ.GT.XMUR) DLAM3 = DLAM3 - | |
26370 | &1D0/16D0/PI**2*G1**2*HU**2*TP | |
26371 | IF(XMQ.LT.XMUR.OR.XMQ.EQ.XMUR) DLAM3 = DLAM3 + | |
26372 | &3D0/64D0/PI**2*HU**2*(G2**2+G1**2/3D0)*TP | |
26373 | ||
26374 | IF(XMQ.LT.XMUR) DLAM4 = -3D0/32D0/PI**2*G2**2*HU**2*TP | |
26375 | IF(XMQ.LT.XMDL) DLAM4 = DLAM4 - 3D0/32D0/PI**2*G2**2* | |
26376 | &HD**2*TPD | |
26377 | ||
26378 | XLAM1 = ((G1**2 + G2**2)/4D0)* | |
26379 | &(1D0-3D0*HD**2*(TPD + TDPD)/8D0/PI**2) | |
26380 | &+(3D0*HD**4/16D0/PI**2) *TPD*(1D0 | |
26381 | &+ (3D0*HD**2/2D0 + HU**2/2D0 | |
26382 | &- 8D0*G3**2) * (TPD + 2D0*TDPD)/16D0/PI**2) | |
26383 | &+(3D0*HD**4/8D0/PI**2) *TDPD*(1D0 + (3D0*HD**2/2D0 + HU**2/2D0 | |
26384 | &- 8D0*G3**2) * TDPD/16D0/PI**2) + DLAM1 | |
26385 | XLAM2 = ((G1**2 + G2**2)/4D0)*(1D0-3D0*HU**2* | |
26386 | &(TP + TDP)/8D0/PI**2) | |
26387 | &+(3D0*HU**4/16D0/PI**2) *TP*(1D0 | |
26388 | &+ (3D0*HU**2/2D0 + HD**2/2D0 | |
26389 | &- 8D0*G3**2) * (TP + 2D0*TDP)/16D0/PI**2) | |
26390 | &+(3D0*HU**4/8D0/PI**2) *TDP*(1D0 + (3D0*HU**2/2D0 + HD**2/2D0 | |
26391 | &- 8D0*G3**2) * TDP/16D0/PI**2) + DLAM2 | |
26392 | XLAM3 = ((G2**2 - G1**2)/4D0)*(1D0-3D0* | |
26393 | &(HU**2)*(TP + TDP)/16D0/PI**2 -3D0* | |
26394 | &(HD**2)*(TPD + TDPD)/16D0/PI**2) +DLAM3 | |
26395 | XLAM4 = (- G2**2/2D0)*(1D0 | |
26396 | &-3D0*(HU**2)*(TP + TDP)/16D0/PI**2 | |
26397 | &-3D0*(HD**2)*(TPD + TDPD)/16D0/PI**2) +DLAM4 | |
26398 | ||
26399 | XLAM5 = 0D0 | |
26400 | XLAM6 = 0D0 | |
26401 | XLAM7 = 0D0 | |
26402 | ||
26403 | XM2(1,1) = 2D0*V**2*(XLAM1*COSB**2+2D0*XLAM6* | |
26404 | &COSB*SINB + XLAM5*SINB**2) + XMA**2*SINB**2 | |
26405 | ||
26406 | XM2(2,2) = 2D0*V**2*(XLAM5*COSB**2+2D0*XLAM7* | |
26407 | &COSB*SINB + XLAM2*SINB**2) + XMA**2*COSB**2 | |
26408 | XM2(1,2) = 2D0*V**2*(XLAM6*COSB**2+(XLAM3+XLAM4)* | |
26409 | &COSB*SINB + XLAM7*SINB**2) - XMA**2*SINB*COSB | |
26410 | ||
26411 | XM2(2,1) = XM2(1,2) | |
26412 | ||
26413 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26414 | C...THIS IS THE CONTRIBUTION FROM LIGHT CHARGINOS/NEUTRALINOS | |
26415 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26416 | ||
26417 | XMSSU=(0.5D0*(XMQ**2+XMUR**2)+XMT**2)**0.5D0 | |
26418 | ||
26419 | IF(XMC.GT.XMSSU) GOTO 100 | |
26420 | IF(XMC.LT.XMT) XMC=XMT | |
26421 | ||
26422 | TCHAR=LOG(XMSSU**2/XMC**2) | |
26423 | ||
26424 | DEL12=(9D0/64D0/PI**2*G2**4+5D0/192D0/PI**2*G1**4)*TCHAR | |
26425 | DEL3P4=(3D0/64D0/PI**2*G2**4+7D0/192D0/PI**2*G1**4 | |
26426 | &+4D0/32/PI**2*G1**2*G2**2)*TCHAR | |
26427 | ||
26428 | DEM112=2D0*DEL12*V**2*COSB**2 | |
26429 | DEM222=2D0*DEL12*V**2*SINB**2 | |
26430 | DEM122=2D0*DEL3P4*V**2*SINB*COSB | |
26431 | ||
26432 | XM2(1,1)=XM2(1,1)+DEM112 | |
26433 | XM2(2,2)=XM2(2,2)+DEM222 | |
26434 | XM2(1,2)=XM2(1,2)+DEM122 | |
26435 | XM2(2,1)=XM2(2,1)+DEM122 | |
26436 | ||
26437 | 100 CONTINUE | |
26438 | ||
26439 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26440 | C...END OF CHARGINOS/NEUTRALINOS | |
26441 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26442 | ||
26443 | DO 120 I = 1,2 | |
26444 | DO 110 J = 1,2 | |
26445 | XM2P(I,J) = XM2(I,J) + VH(I,J) | |
26446 | 110 CONTINUE | |
26447 | 120 CONTINUE | |
26448 | ||
26449 | TRM2P = XM2P(1,1) + XM2P(2,2) | |
26450 | DETM2P = XM2P(1,1)*XM2P(2,2) - XM2P(1,2)*XM2P(2,1) | |
26451 | ||
26452 | XMH2P = (TRM2P - (TRM2P**2 - 4D0* DETM2P)**0.5D0)/2D0 | |
26453 | HM2P = (TRM2P + (TRM2P**2 - 4D0* DETM2P)**0.5D0)/2D0 | |
26454 | HMP = HM2P**0.5D0 | |
26455 | IF(XMH2P.LT.0D0) GOTO 130 | |
26456 | XMHP = XMH2P**0.5D0 | |
26457 | S2ALP = 2D0*XM2P(1,2)/(TRM2P**2-4D0*DETM2P)**0.5D0 | |
26458 | C2ALP = (XM2P(1,1)-XM2P(2,2))/(TRM2P**2-4D0*DETM2P)**0.5D0 | |
26459 | IF(C2ALP.GT.0D0) ALP = ASIN(S2ALP)/2D0 | |
26460 | IF(C2ALP.LT.0D0) ALP = -PI/2D0-ASIN(S2ALP)/2D0 | |
26461 | SA = SIN(ALP) | |
26462 | CA = COS(ALP) | |
26463 | SQBMA = (SINB*CA - COSB*SA)**2 | |
26464 | 130 XIN = 1D0 | |
26465 | 140 CONTINUE | |
26466 | ||
26467 | RETURN | |
26468 | END | |
26469 | ||
26470 | C********************************************************************* | |
26471 | ||
26472 | C...PYGFXX | |
26473 | C...Auxiliary routine to PYRGHM for SUSY Higgs calculations. | |
26474 | ||
26475 | SUBROUTINE PYGFXX(XMA,TANB,XMQ,XMUR,XMDL,XMT,AT,AB,XMU,VH, | |
26476 | &STOP1,STOP2) | |
26477 | ||
26478 | C...Double precision and integer declarations. | |
26479 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
26480 | INTEGER PYK,PYCHGE,PYCOMP | |
26481 | ||
26482 | C...Local variables. | |
26483 | DIMENSION DIAH(2),VH(2,2),VH1(2,2),VH2(2,2), | |
26484 | &VH3T(2,2),VH3B(2,2), | |
26485 | &HMIX(2,2),AL(2,2),XM2(2,2) | |
26486 | ||
26487 | C...Statement function. | |
26488 | G(X,Y) = 2D0 - (X+Y)/(X-Y)*LOG(X/Y) | |
26489 | ||
26490 | IF(DABS(XMU).LT.0.000001D0) XMU = 0.000001D0 | |
26491 | XMQ2 = XMQ**2 | |
26492 | XMUR2 = XMUR**2 | |
26493 | XMDL2 = XMDL**2 | |
26494 | TANBA = TANB | |
26495 | SINBA = TANBA/(TANBA**2+1D0)**0.5D0 | |
26496 | COSBA = SINBA/TANBA | |
26497 | ||
26498 | SINB = TANB/(TANB**2+1D0)**0.5D0 | |
26499 | COSB = SINB/TANB | |
26500 | PI = 3.14159D0 | |
26501 | G2 = (0.0336D0*4D0*PI)**0.5D0 | |
26502 | G12 = (0.0101D0*4D0*PI) | |
26503 | G1 = G12**0.5D0 | |
26504 | XMZ = 91.18D0 | |
26505 | V = 174.1D0 | |
26506 | MW = (G2**2*V**2/2D0)**0.5D0 | |
26507 | ALP3 = 0.12D0/(1D0+23/12D0/PI*0.12D0*LOG(XMT**2/XMZ**2)) | |
26508 | ||
26509 | XMB = 3D0 | |
26510 | IF(XMQ.GT.XMUR) XMST = XMQ | |
26511 | IF(XMUR.GT.XMQ.OR.XMUR.EQ.XMQ) XMST = XMUR | |
26512 | ||
26513 | XMSUT = (XMST**2 + XMT**2)**0.5D0 | |
26514 | ||
26515 | IF(XMQ.GT.XMDL) XMSB = XMQ | |
26516 | IF(XMDL.GT.XMQ.OR.XMDL.EQ.XMQ) XMSB = XMDL | |
26517 | ||
26518 | XMSUB = (XMSB**2 + XMB**2)**0.5D0 | |
26519 | ||
26520 | TT = LOG(XMSUT**2/XMT**2) | |
26521 | TB = LOG(XMSUB**2/XMT**2) | |
26522 | ||
26523 | RXMT = XMT/(1D0+4D0*ALP3/3D0/PI) | |
26524 | HT = RXMT/(174.1D0*SINB) | |
26525 | HTST = RXMT/174.1D0 | |
26526 | HB = XMB/174.1D0/COSB | |
26527 | G32 = ALP3*4D0*PI | |
26528 | BT2 = -(8D0*G32 - 9D0*HT**2/2D0 - HB**2/2D0)/(4D0*PI)**2 | |
26529 | BB2 = -(8D0*G32 - 9D0*HB**2/2D0 - HT**2/2D0)/(4D0*PI)**2 | |
26530 | AL2 = 3D0/8D0/PI**2*HT**2 | |
26531 | BT2ST = -(8D0*G32 - 9D0*HTST**2/2D0)/(4D0*PI)**2 | |
26532 | ALST = 3D0/8D0/PI**2*HTST**2 | |
26533 | AL1 = 3D0/8D0/PI**2*HB**2 | |
26534 | ||
26535 | AL(1,1) = AL1 | |
26536 | AL(1,2) = (AL2+AL1)/2D0 | |
26537 | AL(2,1) = (AL2+AL1)/2D0 | |
26538 | AL(2,2) = AL2 | |
26539 | ||
26540 | XMT4 = RXMT**4*(1D0+2D0*BT2*TT- AL2*TT) | |
26541 | XMT2 = SQRT(XMT4) | |
26542 | XMBOT4 = XMB**4*(1D0+2D0*BB2*TB - AL1*TB) | |
26543 | XMBOT2 = SQRT(XMBOT4) | |
26544 | ||
26545 | IF(XMA.GT.XMT) THEN | |
26546 | VI = 174.1D0*(1D0 + 3D0/32D0/PI**2*HTST**2* | |
26547 | & LOG(XMT**2/XMA**2)) | |
26548 | H1I = VI* COSBA | |
26549 | H2I = VI*SINBA | |
26550 | H1T = H1I*(1D0+3D0/8D0/PI**2*HB**2*LOG(XMA**2/XMSUT**2))**0.25D0 | |
26551 | H2T = H2I*(1D0+3D0/8D0/PI**2*HT**2*LOG(XMA**2/XMSUT**2))**0.25D0 | |
26552 | H1B = H1I*(1D0+3D0/8D0/PI**2*HB**2*LOG(XMA**2/XMSUB**2))**0.25D0 | |
26553 | H2B = H2I*(1D0+3D0/8D0/PI**2*HT**2*LOG(XMA**2/XMSUB**2))**0.25D0 | |
26554 | ELSE | |
26555 | VI = 174.1D0 | |
26556 | H1I = VI*COSB | |
26557 | H2I = VI*SINB | |
26558 | H1T = H1I*(1D0+3D0/8D0/PI**2*HB**2*LOG(XMT**2/XMSUT**2))**0.25D0 | |
26559 | H2T = H2I*(1D0+3D0/8D0/PI**2*HT**2*LOG(XMT**2/XMSUT**2))**0.25D0 | |
26560 | H1B = H1I*(1D0+3D0/8D0/PI**2*HB**2*LOG(XMT**2/XMSUB**2))**0.25D0 | |
26561 | H2B = H2I*(1D0+3D0/8D0/PI**2*HT**2*LOG(XMT**2/XMSUB**2))**0.25D0 | |
26562 | ENDIF | |
26563 | ||
26564 | TANBST = H2T/H1T | |
26565 | SINBT = TANBST/(1D0+TANBST**2)**0.5D0 | |
26566 | COSBT = SINBT/TANBST | |
26567 | ||
26568 | TANBSB = H2B/H1B | |
26569 | SINBB = TANBSB/(1D0+TANBSB**2)**0.5D0 | |
26570 | COSBB = SINBB/TANBSB | |
26571 | ||
26572 | STOP12 = (XMQ2 + XMUR2)*0.5D0 + XMT2 | |
26573 | &+1D0/8D0*(G2**2+G1**2)*(H1T**2-H2T**2) | |
26574 | &+(((G2**2-5D0*G1**2/3D0)/4D0*(H1T**2-H2T**2) + | |
26575 | &XMQ2 - XMUR2)**2*0.25D0 + XMT2*(AT-XMU/TANBST)**2)**0.5D0 | |
26576 | STOP22 = (XMQ2 + XMUR2)*0.5D0 + XMT2 | |
26577 | &+1D0/8D0*(G2**2+G1**2)*(H1T**2-H2T**2) | |
26578 | &- (((G2**2-5D0*G1**2/3D0)/4D0*(H1T**2-H2T**2) + | |
26579 | &XMQ2 - XMUR2)**2*0.25D0 | |
26580 | &+ XMT2*(AT-XMU/TANBST)**2)**0.5D0 | |
26581 | IF(STOP22.LT.0D0) GOTO 120 | |
26582 | SBOT12 = (XMQ2 + XMDL2)*0.5D0 | |
26583 | &- 1D0/8D0*(G2**2+G1**2)*(H1B**2-H2B**2) | |
26584 | &+ (((G1**2/3D0-G2**2)/4D0*(H1B**2-H2B**2) + | |
26585 | &XMQ2 - XMDL2)**2*0.25D0 + XMBOT2*(AB-XMU*TANBSB)**2)**0.5D0 | |
26586 | SBOT22 = (XMQ2 + XMDL2)*0.5D0 | |
26587 | &- 1D0/8D0*(G2**2+G1**2)*(H1B**2-H2B**2) | |
26588 | &- (((G1**2/3D0-G2**2)/4D0*(H1B**2-H2B**2) + | |
26589 | &XMQ2 - XMDL2)**2*0.25D0 + XMBOT2*(AB-XMU*TANBSB)**2)**0.5D0 | |
26590 | IF(SBOT22.LT.0D0) GOTO 120 | |
26591 | ||
26592 | STOP1 = STOP12**0.5D0 | |
26593 | STOP2 = STOP22**0.5D0 | |
26594 | SBOT1 = SBOT12**0.5D0 | |
26595 | SBOT2 = SBOT22**0.5D0 | |
26596 | ||
26597 | VH1(1,1) = 1D0/TANBST | |
26598 | VH1(2,1) = -1D0 | |
26599 | VH1(1,2) = -1D0 | |
26600 | VH1(2,2) = TANBST | |
26601 | VH2(1,1) = TANBST | |
26602 | VH2(1,2) = -1D0 | |
26603 | VH2(2,1) = -1D0 | |
26604 | VH2(2,2) = 1D0/TANBST | |
26605 | ||
26606 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26607 | C...D-TERMS | |
26608 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC | |
26609 | STW=0.2320D0 | |
26610 | ||
26611 | F1T=(XMQ2-XMUR2)/(STOP12-STOP22)*(0.5D0-4D0/3D0*STW)* | |
26612 | &LOG(STOP1/STOP2) | |
26613 | &+(0.5D0-2D0/3D0*STW)*LOG(STOP1*STOP2/(XMQ2+XMT2)) | |
26614 | &+ 2D0/3D0*STW*LOG(STOP1*STOP2/(XMUR2+XMT2)) | |
26615 | ||
26616 | F1B=(XMQ2-XMDL2)/(SBOT12-SBOT22)*(-0.5D0+2D0/3D0*STW)* | |
26617 | &LOG(SBOT1/SBOT2) | |
26618 | &+(-0.5D0+1D0/3D0*STW)*LOG(SBOT1*SBOT2/(XMQ2+XMBOT2)) | |
26619 | &- 1D0/3D0*STW*LOG(SBOT1*SBOT2/(XMDL2+XMBOT2)) | |
26620 | ||
26621 | F2T=XMT2**0.5D0*(AT-XMU/TANBST)/(STOP12-STOP22)* | |
26622 | &(-0.5D0*LOG(STOP12/STOP22) | |
26623 | &+(4D0/3D0*STW-0.5D0)*(XMQ2-XMUR2)/(STOP12-STOP22)* | |
26624 | &G(STOP12,STOP22)) | |
26625 | ||
26626 | F2B=XMBOT2**0.5D0*(AB-XMU*TANBSB)/(SBOT12-SBOT22)* | |
26627 | &(0.5D0*LOG(SBOT12/SBOT22) | |
26628 | &+(-2D0/3D0*STW+0.5D0)*(XMQ2-XMDL2)/(SBOT12-SBOT22)* | |
26629 | &G(SBOT12,SBOT22)) | |
26630 | ||
26631 | VH3B(1,1) = XMBOT4/(COSBB**2)*(LOG(SBOT1**2*SBOT2**2/ | |
26632 | &(XMQ2+XMBOT2)/(XMDL2+XMBOT2)) | |
26633 | &+ 2D0*(AB*(AB-XMU*TANBSB)/(SBOT1**2-SBOT2**2))* | |
26634 | &LOG(SBOT1**2/SBOT2**2)) + | |
26635 | &XMBOT4/(COSBB**2)*(AB*(AB-XMU*TANBSB)/ | |
26636 | &(SBOT1**2-SBOT2**2))**2*G(SBOT12,SBOT22) | |
26637 | ||
26638 | VH3T(1,1) = | |
26639 | &XMT4/(SINBT**2)*(XMU*(-AT+XMU/TANBST)/(STOP1**2 | |
26640 | &-STOP2**2))**2*G(STOP12,STOP22) | |
26641 | ||
26642 | VH3B(1,1)=VH3B(1,1)+ | |
26643 | &XMZ**2*(2*XMBOT2*F1B-XMBOT2**0.5D0*AB*F2B) | |
26644 | ||
26645 | VH3T(1,1) = VH3T(1,1) + | |
26646 | &XMZ**2*(XMT2**0.5D0*XMU/TANBST*F2T) | |
26647 | ||
26648 | VH3T(2,2) = XMT4/(SINBT**2)*(LOG(STOP1**2*STOP2**2/ | |
26649 | &(XMQ2+XMT2)/(XMUR2+XMT2)) | |
26650 | &+ 2D0*(AT*(AT-XMU/TANBST)/(STOP1**2-STOP2**2))* | |
26651 | &LOG(STOP1**2/STOP2**2)) + | |
26652 | &XMT4/(SINBT**2)*(AT*(AT-XMU/TANBST)/ | |
26653 | &(STOP1**2-STOP2**2))**2*G(STOP12,STOP22) | |
26654 | ||
26655 | VH3B(2,2) = | |
26656 | &XMBOT4/(COSBB**2)*(XMU*(-AB+XMU*TANBSB)/(SBOT1**2 | |
26657 | &-SBOT2**2))**2*G(SBOT12,SBOT22) | |
26658 | ||
26659 | VH3T(2,2)=VH3T(2,2)+ | |
26660 | &XMZ**2*(-2*XMT2*F1T+XMT2**0.5D0*AT*F2T) | |
26661 | ||
26662 | VH3B(2,2) = VH3B(2,2) -XMZ**2*XMBOT2**0.5D0*XMU*TANBSB*F2B | |
26663 | ||
26664 | VH3T(1,2) = - | |
26665 | &XMT4/(SINBT**2)*XMU*(AT-XMU/TANBST)/ | |
26666 | &(STOP1**2-STOP2**2)*(LOG(STOP1**2/STOP2**2) + AT* | |
26667 | &(AT - XMU/TANBST)/(STOP1**2-STOP2**2)*G(STOP12,STOP22)) | |
26668 | ||
26669 | VH3B(1,2) = | |
26670 | &- XMBOT4/(COSBB**2)*XMU*(AT-XMU*TANBSB)/ | |
26671 | &(SBOT1**2-SBOT2**2)*(LOG(SBOT1**2/SBOT2**2) + AB* | |
26672 | &(AB - XMU*TANBSB)/(SBOT1**2-SBOT2**2)*G(SBOT12,SBOT22)) | |
26673 | ||
26674 | VH3T(1,2)=VH3T(1,2) + | |
26675 | &XMZ**2*(XMT2/TANBST*F1T-XMT2**0.5D0*(AT/TANBST+XMU)/2D0*F2T) | |
26676 | ||
26677 | VH3B(1,2)=VH3B(1,2) | |
26678 | &+XMZ**2*(-XMBOT2*TANBSB*F1B+XMBOT2**0.5D0*(AB*TANBSB+XMU)/2D0*F2B) | |
26679 | ||
26680 | VH3T(2,1) = VH3T(1,2) | |
26681 | VH3B(2,1) = VH3B(1,2) | |
26682 | ||
26683 | TQ = LOG((XMQ2 + XMT2)/XMT2) | |
26684 | TU = LOG((XMUR2+XMT2)/XMT2) | |
26685 | TQD = LOG((XMQ2 + XMB**2)/XMB**2) | |
26686 | TD = LOG((XMDL2+XMB**2)/XMB**2) | |
26687 | ||
26688 | DO 110 I = 1,2 | |
26689 | DO 100 J = 1,2 | |
26690 | ||
26691 | VH(I,J) = | |
26692 | & 6D0/(8D0*PI**2*(H1T**2+H2T**2)) | |
26693 | & *VH3T(I,J)*0.5D0*(1D0-AL(I,J)*TT/2D0) + | |
26694 | & 6D0/(8D0*PI**2*(H1B**2+H2B**2)) | |
26695 | & *VH3B(I,J)*0.5D0*(1D0-AL(I,J)*TB/2D0) | |
26696 | ||
26697 | 100 CONTINUE | |
26698 | 110 CONTINUE | |
26699 | ||
26700 | GOTO 150 | |
26701 | 120 DO 140 I =1,2 | |
26702 | DO 130 J = 1,2 | |
26703 | VH(I,J) = -1D+15 | |
26704 | 130 CONTINUE | |
26705 | 140 CONTINUE | |
26706 | ||
26707 | 150 CONTINUE | |
26708 | ||
26709 | RETURN | |
26710 | END | |
26711 | ||
26712 | C********************************************************************* | |
26713 | ||
26714 | C...PYFINT | |
26715 | C...Auxiliary routine to PYVACU for SUSY Higgs calculations. | |
26716 | ||
26717 | FUNCTION PYFINT(A,B,C) | |
26718 | ||
26719 | C...Double precision and integer declarations. | |
26720 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
26721 | INTEGER PYK,PYCHGE,PYCOMP | |
26722 | C...Commonblock. | |
26723 | COMMON/PYINTS/XXM(20) | |
26724 | SAVE/PYINTS/ | |
26725 | ||
26726 | C...Local variables. | |
26727 | EXTERNAL PYFISB | |
26728 | ||
26729 | XXM(1)=A | |
26730 | XXM(2)=B | |
26731 | XXM(3)=C | |
26732 | XLO=0D0 | |
26733 | XHI=1D0 | |
26734 | PYFINT = PYGAUS(PYFISB,XLO,XHI,1D-3) | |
26735 | ||
26736 | RETURN | |
26737 | END | |
26738 | ||
26739 | C********************************************************************* | |
26740 | ||
26741 | C...PYFISB | |
26742 | C...Auxiliary routine to PYFINT for SUSY Higgs calculations. | |
26743 | ||
26744 | FUNCTION PYFISB(X) | |
26745 | ||
26746 | C...Double precision and integer declarations. | |
26747 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
26748 | INTEGER PYK,PYCHGE,PYCOMP | |
26749 | C...Commonblock. | |
26750 | COMMON/PYINTS/XXM(20) | |
26751 | SAVE/PYINTS/ | |
26752 | ||
26753 | PYFISB = LOG(ABS(X*XXM(2)+(1-X)*XXM(3)-X*(1-X)*XXM(1))/ | |
26754 | &(X*(XXM(2)-XXM(3))+XXM(3))) | |
26755 | ||
26756 | RETURN | |
26757 | END | |
26758 | ||
26759 | C********************************************************************* | |
26760 | ||
26761 | C...PYSFDC | |
26762 | C...Calculates decays of sfermions. | |
26763 | ||
26764 | SUBROUTINE PYSFDC(KFIN,XLAM,IDLAM,IKNT) | |
26765 | ||
26766 | C...Double precision and integer declarations. | |
26767 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
26768 | INTEGER PYK,PYCHGE,PYCOMP | |
26769 | C...Parameter statement to help give large particle numbers. | |
26770 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
26771 | C...Commonblocks. | |
26772 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
26773 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
26774 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
26775 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
26776 | &SFMIX(16,4) | |
26777 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/ | |
26778 | ||
26779 | C...Local variables. | |
26780 | INTEGER KFIN,KCIN | |
26781 | DOUBLE PRECISION XMI,XMJ,XMF,XMSF1,XMSF2,XMW,XMW2,XMZ, | |
26782 | &XMZ2,AXMJ,AXMI | |
26783 | DOUBLE PRECISION XMI2,XMI3,XMJ2,XMA2,XMB2,XMFP | |
26784 | DOUBLE PRECISION PYLAMF,XL | |
26785 | DOUBLE PRECISION TANW,XW,AEM,C1,AS | |
26786 | DOUBLE PRECISION CA,CB,AL,AR,BL,BR,ALP,ARP,BLP,BRP | |
26787 | DOUBLE PRECISION CH1,CH2,CH3,CH4 | |
26788 | DOUBLE PRECISION XMBOT,XMTOP | |
26789 | DOUBLE PRECISION XLAM(0:200) | |
26790 | INTEGER IDLAM(200,3) | |
26791 | INTEGER LKNT,IX,IC,ILR,IDU,J,IJ,I,IKNT,IFL,IFP,II | |
26792 | DOUBLE PRECISION SR2 | |
26793 | DOUBLE PRECISION CBETA,SBETA,GR,GL,F12K,F21K | |
26794 | DOUBLE PRECISION CW | |
26795 | DOUBLE PRECISION BETA,ALFA,XMU,AT,AB,ATRIT,ATRIB,ATRIL | |
26796 | DOUBLE PRECISION COSA,SINA,TANB | |
26797 | DOUBLE PRECISION PYALEM,PI,PYALPS,EI,PYRNMT | |
26798 | DOUBLE PRECISION GHRR,GHLL,GHLR,CF,XMB,BLR | |
26799 | INTEGER IG,KF1,KF2,ILR2,IDP | |
26800 | INTEGER IGG(4),KFNCHI(4),KFCCHI(2) | |
26801 | DATA IGG/23,25,35,36/ | |
26802 | DATA PI/3.141592654D0/ | |
26803 | DATA SR2/1.4142136D0/ | |
26804 | DATA KFNCHI/1000022,1000023,1000025,1000035/ | |
26805 | DATA KFCCHI/1000024,1000037/ | |
26806 | ||
26807 | C...COUNT THE NUMBER OF DECAY MODES | |
26808 | LKNT=0 | |
26809 | ||
26810 | C...NO NU_R DECAYS | |
26811 | IF(KFIN.EQ.KSUSY2+12.OR.KFIN.EQ.KSUSY2+14.OR. | |
26812 | &KFIN.EQ.KSUSY2+16) RETURN | |
26813 | ||
26814 | XMW=PMAS(24,1) | |
26815 | XMW2=XMW**2 | |
26816 | XMZ=PMAS(23,1) | |
26817 | XMZ2=XMZ**2 | |
26818 | XW=PARU(102) | |
26819 | TANW = SQRT(XW/(1D0-XW)) | |
26820 | CW=SQRT(1D0-XW) | |
26821 | ||
26822 | C...KCIN | |
26823 | KCIN=PYCOMP(KFIN) | |
26824 | C...ILR is 1 for left and 2 for right. | |
26825 | ILR=KFIN/KSUSY1 | |
26826 | C...IFL is matching non-SUSY flavour. | |
26827 | IFL=MOD(KFIN,KSUSY1) | |
26828 | C...IDU is weak isospin, 1 for down and 2 for up. | |
26829 | IDU=2-MOD(IFL,2) | |
26830 | ||
26831 | XMI=PMAS(KCIN,1) | |
26832 | XMI2=XMI**2 | |
26833 | AEM=PYALEM(XMI2) | |
26834 | AS =PYALPS(XMI2) | |
26835 | C1=AEM/XW | |
26836 | XMI3=XMI**3 | |
26837 | EI=KCHG(IFL,1)/3D0 | |
26838 | ||
26839 | XMBOT=3D0 | |
26840 | XMTOP=PYRNMT(PMAS(6,1)) | |
26841 | XMBOT=0D0 | |
26842 | ||
26843 | TANB=RMSS(5) | |
26844 | BETA=ATAN(TANB) | |
26845 | ALFA=RMSS(18) | |
26846 | CBETA=COS(BETA) | |
26847 | SBETA=TANB*CBETA | |
26848 | SINA=SIN(ALFA) | |
26849 | COSA=COS(ALFA) | |
26850 | XMU=-RMSS(4) | |
26851 | ATRIT=RMSS(16) | |
26852 | ATRIB=RMSS(15) | |
26853 | ATRIL=RMSS(17) | |
26854 | ||
26855 | C...2-BODY DECAYS OF SFERMION -> GRAVITINO + FERMION | |
26856 | ||
26857 | IF(IMSS(11).EQ.1) THEN | |
26858 | XMP=RMSS(28) | |
26859 | IDG=39+KSUSY1 | |
26860 | XMGR=PMAS(PYCOMP(IDG),1) | |
26861 | XFAC=(XMI2/(XMP*XMGR))**2*XMI/48D0/PI | |
26862 | IF(IFL.EQ.5) THEN | |
26863 | XMF=XMBOT | |
26864 | ELSEIF(IFL.EQ.6) THEN | |
26865 | XMF=XMTOP | |
26866 | ELSE | |
26867 | XMF=PMAS(IFL,1) | |
26868 | ENDIF | |
26869 | IF(XMI.GT.XMGR+XMF) THEN | |
26870 | LKNT=LKNT+1 | |
26871 | IDLAM(LKNT,1)=IDG | |
26872 | IDLAM(LKNT,2)=IFL | |
26873 | IDLAM(LKNT,3)=0 | |
26874 | XLAM(LKNT)=XFAC*(1D0-XMF**2/XMI2)**4 | |
26875 | ENDIF | |
26876 | ENDIF | |
26877 | ||
26878 | C...2-BODY DECAYS OF SFERMION -> FERMION + GAUGE/GAUGINO | |
26879 | ||
26880 | C...CHARGED DECAYS: | |
26881 | DO 100 IX=1,2 | |
26882 | C...DI -> U CHI1-,CHI2- | |
26883 | IF(IDU.EQ.1) THEN | |
26884 | XMFP=PMAS(IFL+1,1) | |
26885 | XMF =PMAS(IFL,1) | |
26886 | C...UI -> D CHI1+,CHI2+ | |
26887 | ELSE | |
26888 | XMFP=PMAS(IFL-1,1) | |
26889 | XMF =PMAS(IFL,1) | |
26890 | ENDIF | |
26891 | XMJ=SMW(IX) | |
26892 | AXMJ=ABS(XMJ) | |
26893 | IF(XMI.GE.AXMJ+XMFP) THEN | |
26894 | XMA2=XMJ**2 | |
26895 | XMB2=XMFP**2 | |
26896 | IF(IDU.EQ.2) THEN | |
26897 | IF(IFL.EQ.6) THEN | |
26898 | XMFP=XMBOT | |
26899 | XMF =XMTOP | |
26900 | ELSEIF(IFL.LT.6) THEN | |
26901 | XMF=0D0 | |
26902 | XMFP=0D0 | |
26903 | ENDIF | |
26904 | BL=VMIX(IX,1) | |
26905 | AL=-XMFP*UMIX(IX,2)/SR2/XMW/CBETA | |
26906 | BR=-XMF*VMIX(IX,2)/SR2/XMW/SBETA | |
26907 | AR=0D0 | |
26908 | ELSE | |
26909 | IF(IFL.EQ.5) THEN | |
26910 | XMF =XMBOT | |
26911 | XMFP=XMTOP | |
26912 | ELSEIF(IFL.LT.5) THEN | |
26913 | XMF=0D0 | |
26914 | XMFP=0D0 | |
26915 | ENDIF | |
26916 | BL=UMIX(IX,1) | |
26917 | AL=-XMFP*VMIX(IX,2)/SR2/XMW/SBETA | |
26918 | BR=-XMF*UMIX(IX,2)/SR2/XMW/CBETA | |
26919 | AR=0D0 | |
26920 | ENDIF | |
26921 | ||
26922 | ALP=SFMIX(IFL,1)*AL + SFMIX(IFL,2)*AR | |
26923 | BLP=SFMIX(IFL,1)*BL + SFMIX(IFL,2)*BR | |
26924 | ARP=SFMIX(IFL,4)*AR + SFMIX(IFL,3)*AL | |
26925 | BRP=SFMIX(IFL,4)*BR + SFMIX(IFL,3)*BL | |
26926 | AL=ALP | |
26927 | BL=BLP | |
26928 | AR=ARP | |
26929 | BR=BRP | |
26930 | ||
26931 | C...F1 -> F` CHI | |
26932 | IF(ILR.EQ.1) THEN | |
26933 | CA=AL | |
26934 | CB=BL | |
26935 | C...F2 -> F` CHI | |
26936 | ELSE | |
26937 | CA=AR | |
26938 | CB=BR | |
26939 | ENDIF | |
26940 | LKNT=LKNT+1 | |
26941 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
26942 | C...SPIN AVERAGE = 1/1 NOT 1/2....NO COLOR ENHANCEMENT | |
26943 | XLAM(LKNT)=2D0*C1/8D0/XMI3*SQRT(XL)*((XMI2-XMB2-XMA2)* | |
26944 | & (CA**2+CB**2)-4D0*CA*CB*XMJ*XMFP) | |
26945 | IDLAM(LKNT,3)=0 | |
26946 | IF(IDU.EQ.1) THEN | |
26947 | IDLAM(LKNT,1)=-KFCCHI(IX) | |
26948 | IDLAM(LKNT,2)=IFL+1 | |
26949 | ELSE | |
26950 | IDLAM(LKNT,1)=KFCCHI(IX) | |
26951 | IDLAM(LKNT,2)=IFL-1 | |
26952 | ENDIF | |
26953 | ENDIF | |
26954 | 100 CONTINUE | |
26955 | ||
26956 | C...NEUTRAL DECAYS | |
26957 | DO 110 IX=1,4 | |
26958 | C...DI -> D CHI10 | |
26959 | XMF=PMAS(IFL,1) | |
26960 | XMJ=SMZ(IX) | |
26961 | AXMJ=ABS(XMJ) | |
26962 | IF(XMI.GE.AXMJ+XMF) THEN | |
26963 | XMA2=XMJ**2 | |
26964 | XMB2=XMF**2 | |
26965 | IF(IDU.EQ.1) THEN | |
26966 | IF(IFL.EQ.5) THEN | |
26967 | XMF=XMBOT | |
26968 | ELSEIF(IFL.LT.5) THEN | |
26969 | XMF=0D0 | |
26970 | ENDIF | |
26971 | BL=-ZMIX(IX,2)+TANW*ZMIX(IX,1)*(2D0*EI+1) | |
26972 | AL=XMF*ZMIX(IX,3)/XMW/CBETA | |
26973 | AR=-2D0*EI*TANW*ZMIX(IX,1) | |
26974 | BR=AL | |
26975 | ELSE | |
26976 | IF(IFL.EQ.6) THEN | |
26977 | XMF=XMTOP | |
26978 | ELSEIF(IFL.LT.5) THEN | |
26979 | XMF=0D0 | |
26980 | ENDIF | |
26981 | BL=ZMIX(IX,2)+TANW*ZMIX(IX,1)*(2D0*EI-1) | |
26982 | AL=XMF*ZMIX(IX,4)/XMW/SBETA | |
26983 | AR=-2D0*EI*TANW*ZMIX(IX,1) | |
26984 | BR=AL | |
26985 | ENDIF | |
26986 | ||
26987 | ALP=SFMIX(IFL,1)*AL + SFMIX(IFL,2)*AR | |
26988 | BLP=SFMIX(IFL,1)*BL + SFMIX(IFL,2)*BR | |
26989 | ARP=SFMIX(IFL,4)*AR + SFMIX(IFL,3)*AL | |
26990 | BRP=SFMIX(IFL,4)*BR + SFMIX(IFL,3)*BL | |
26991 | AL=ALP | |
26992 | BL=BLP | |
26993 | AR=ARP | |
26994 | BR=BRP | |
26995 | ||
26996 | C...F1 -> F CHI | |
26997 | IF(ILR.EQ.1) THEN | |
26998 | CA=AL | |
26999 | CB=BL | |
27000 | C...F2 -> F CHI | |
27001 | ELSE | |
27002 | CA=AR | |
27003 | CB=BR | |
27004 | ENDIF | |
27005 | LKNT=LKNT+1 | |
27006 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
27007 | C...SPIN AVERAGE = 1/1 NOT 1/2....NO COLOR ENHANCEMENT | |
27008 | XLAM(LKNT)=C1/8D0/XMI3*SQRT(XL)*((XMI2-XMB2-XMA2)* | |
27009 | & (CA**2+CB**2)-4D0*CA*CB*XMJ*XMF) | |
27010 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27011 | IDLAM(LKNT,2)=IFL | |
27012 | IDLAM(LKNT,3)=0 | |
27013 | ENDIF | |
27014 | 110 CONTINUE | |
27015 | ||
27016 | C...2-BODY DECAYS TO SM GAUGE AND HIGGS BOSONS | |
27017 | C...IG=23,25,35,36 | |
27018 | DO 120 II=1,4 | |
27019 | IG=IGG(II) | |
27020 | IF(ILR.EQ.1) GOTO 120 | |
27021 | XMB=PMAS(IG,1) | |
27022 | XMSF1=PMAS(PYCOMP(KFIN-KSUSY1),1) | |
27023 | IF(XMI.LT.XMSF1+XMB) GOTO 120 | |
27024 | IF(IG.EQ.23) THEN | |
27025 | BL=-SIGN(.5D0,EI)/CW+EI*XW/CW | |
27026 | BR=EI*XW/CW | |
27027 | BLR=0D0 | |
27028 | ELSEIF(IG.EQ.25) THEN | |
27029 | IF(IFL.EQ.5) THEN | |
27030 | XMF=XMBOT | |
27031 | ELSEIF(IFL.EQ.6) THEN | |
27032 | XMF=XMTOP | |
27033 | ELSEIF(IFL.LT.5) THEN | |
27034 | XMF=0D0 | |
27035 | ELSE | |
27036 | XMF=PMAS(IFL,1) | |
27037 | ENDIF | |
27038 | IF(IDU.EQ.2) THEN | |
27039 | GHLL=XMZ/CW*(0.5D0-EI*XW)*(-SIN(ALFA+BETA))+ | |
27040 | & XMF**2/XMW*COSA/SBETA | |
27041 | GHRR=XMZ/CW*(EI*XW)*(-SIN(ALFA+BETA))+ | |
27042 | & XMF**2/XMW*COSA/SBETA | |
27043 | ELSE | |
27044 | GHLL=XMZ/CW*(0.5D0-EI*XW)*(-SIN(ALFA+BETA))+ | |
27045 | & XMF**2/XMW*(-SINA)/CBETA | |
27046 | GHRR=XMZ/CW*(EI*XW)*(-SIN(ALFA+BETA))+ | |
27047 | & XMF**2/XMW*(-SINA)/CBETA | |
27048 | ENDIF | |
27049 | IF(IFL.EQ.5) THEN | |
27050 | AT=ATRIB | |
27051 | ELSEIF(IFL.EQ.6) THEN | |
27052 | AT=ATRIT | |
27053 | ELSEIF(IFL.EQ.15) THEN | |
27054 | AT=ATRIL | |
27055 | ELSE | |
27056 | AT=0D0 | |
27057 | ENDIF | |
27058 | IF(IDU.EQ.2) THEN | |
27059 | GHLR=XMF/2D0/XMW/SBETA*(-XMU*SINA+ | |
27060 | & AT*COSA) | |
27061 | ELSE | |
27062 | GHLR=XMF/2D0/XMW/CBETA*(XMU*COSA- | |
27063 | & AT*SINA) | |
27064 | ENDIF | |
27065 | BL=GHLL | |
27066 | BR=GHRR | |
27067 | BLR=-GHLR | |
27068 | ELSEIF(IG.EQ.35) THEN | |
27069 | IF(IFL.EQ.5) THEN | |
27070 | XMF=XMBOT | |
27071 | ELSEIF(IFL.EQ.6) THEN | |
27072 | XMF=XMTOP | |
27073 | ELSEIF(IFL.LT.5) THEN | |
27074 | XMF=0D0 | |
27075 | ELSE | |
27076 | XMF=PMAS(IFL,1) | |
27077 | ENDIF | |
27078 | IF(IDU.EQ.2) THEN | |
27079 | GHLL=XMZ/CW*(0.5D0-EI*XW)*COS(ALFA+BETA)+ | |
27080 | & XMF**2/XMW*SINA/SBETA | |
27081 | GHRR=XMZ/CW*(EI*XW)*COS(ALFA+BETA)+ | |
27082 | & XMF**2/XMW*SINA/SBETA | |
27083 | ELSE | |
27084 | GHLL=XMZ/CW*(0.5D0-EI*XW)*COS(ALFA+BETA)+ | |
27085 | & XMF**2/XMW*COSA/CBETA | |
27086 | GHRR=XMZ/CW*(EI*XW)*COS(ALFA+BETA)+ | |
27087 | & XMF**2/XMW*COSA/CBETA | |
27088 | ENDIF | |
27089 | IF(IFL.EQ.5) THEN | |
27090 | AT=ATRIB | |
27091 | ELSEIF(IFL.EQ.6) THEN | |
27092 | AT=ATRIT | |
27093 | ELSEIF(IFL.EQ.15) THEN | |
27094 | AT=ATRIL | |
27095 | ELSE | |
27096 | AT=0D0 | |
27097 | ENDIF | |
27098 | IF(IDU.EQ.2) THEN | |
27099 | GHLR=XMF/2D0/XMW/SBETA*(XMU*COSA+ | |
27100 | & AT*SINA) | |
27101 | ELSE | |
27102 | GHLR=XMF/2D0/XMW/CBETA*(XMU*SINA+ | |
27103 | & AT*COSA) | |
27104 | ENDIF | |
27105 | BL=GHLL | |
27106 | BR=GHRR | |
27107 | BLR=GHLR | |
27108 | ELSEIF(IG.EQ.36) THEN | |
27109 | GHLL=0D0 | |
27110 | GHRR=0D0 | |
27111 | IF(IFL.EQ.5) THEN | |
27112 | XMF=XMBOT | |
27113 | ELSEIF(IFL.EQ.6) THEN | |
27114 | XMF=XMTOP | |
27115 | ELSEIF(IFL.LT.5) THEN | |
27116 | XMF=0D0 | |
27117 | ELSE | |
27118 | XMF=PMAS(IFL,1) | |
27119 | ENDIF | |
27120 | IF(IFL.EQ.5) THEN | |
27121 | AT=ATRIB | |
27122 | ELSEIF(IFL.EQ.6) THEN | |
27123 | AT=ATRIT | |
27124 | ELSEIF(IFL.EQ.15) THEN | |
27125 | AT=ATRIL | |
27126 | ELSE | |
27127 | AT=0D0 | |
27128 | ENDIF | |
27129 | IF(IDU.EQ.2) THEN | |
27130 | GHLR=XMF/2D0/XMW*(-XMU+AT/TANB) | |
27131 | ELSE | |
27132 | GHLR=XMF/2D0/XMW/(-XMU+AT*TANB) | |
27133 | ENDIF | |
27134 | BL=GHLL | |
27135 | BR=GHRR | |
27136 | BLR=GHLR | |
27137 | ENDIF | |
27138 | AL=SFMIX(IFL,1)*SFMIX(IFL,3)*BL+ | |
27139 | & SFMIX(IFL,2)*SFMIX(IFL,4)*BR+ | |
27140 | & (SFMIX(IFL,1)*SFMIX(IFL,4)+SFMIX(IFL,3)*SFMIX(IFL,2))*BLR | |
27141 | XL=PYLAMF(XMI2,XMSF1**2,XMB**2) | |
27142 | LKNT=LKNT+1 | |
27143 | IF(IG.EQ.23) THEN | |
27144 | XLAM(LKNT)=C1/4D0/XMI3*XL**1.5D0/XMB**2*AL**2 | |
27145 | ELSE | |
27146 | XLAM(LKNT)=C1/4D0/XMI3*SQRT(XL)*AL**2 | |
27147 | ENDIF | |
27148 | IDLAM(LKNT,3)=0 | |
27149 | IDLAM(LKNT,1)=KFIN-KSUSY1 | |
27150 | IDLAM(LKNT,2)=IG | |
27151 | 120 CONTINUE | |
27152 | ||
27153 | C...SF -> SF' + W | |
27154 | XMB=PMAS(24,1) | |
27155 | IF(MOD(IFL,2).EQ.0) THEN | |
27156 | KF1=KSUSY1+IFL-1 | |
27157 | ELSE | |
27158 | KF1=KSUSY1+IFL+1 | |
27159 | ENDIF | |
27160 | KF2=KF1+KSUSY1 | |
27161 | XMSF1=PMAS(PYCOMP(KF1),1) | |
27162 | XMSF2=PMAS(PYCOMP(KF2),1) | |
27163 | IF(XMI.GT.XMB+XMSF1) THEN | |
27164 | IF(MOD(IFL,2).EQ.0) THEN | |
27165 | IF(ILR.EQ.1) THEN | |
27166 | AL=1D0/SR2*SFMIX(IFL,1)*SFMIX(IFL-1,1) | |
27167 | ELSE | |
27168 | AL=1D0/SR2*SFMIX(IFL,3)*SFMIX(IFL-1,1) | |
27169 | ENDIF | |
27170 | ELSE | |
27171 | IF(ILR.EQ.1) THEN | |
27172 | AL=1D0/SR2*SFMIX(IFL,1)*SFMIX(IFL+1,1) | |
27173 | ELSE | |
27174 | AL=1D0/SR2*SFMIX(IFL,3)*SFMIX(IFL+1,1) | |
27175 | ENDIF | |
27176 | ENDIF | |
27177 | XL=PYLAMF(XMI2,XMSF1**2,XMB**2) | |
27178 | LKNT=LKNT+1 | |
27179 | XLAM(LKNT)=C1/4D0/XMI3*XL**1.5D0/XMB**2*AL**2 | |
27180 | IDLAM(LKNT,3)=0 | |
27181 | IDLAM(LKNT,1)=KF1 | |
27182 | IDLAM(LKNT,2)=SIGN(24,KCHG(IFL,1)) | |
27183 | ENDIF | |
27184 | IF(XMI.GT.XMB+XMSF2) THEN | |
27185 | IF(MOD(IFL,2).EQ.0) THEN | |
27186 | IF(ILR.EQ.1) THEN | |
27187 | AL=1D0/SR2*SFMIX(IFL,1)*SFMIX(IFL-1,3) | |
27188 | ELSE | |
27189 | AL=1D0/SR2*SFMIX(IFL,3)*SFMIX(IFL-1,3) | |
27190 | ENDIF | |
27191 | ELSE | |
27192 | IF(ILR.EQ.1) THEN | |
27193 | AL=1D0/SR2*SFMIX(IFL,1)*SFMIX(IFL+1,3) | |
27194 | ELSE | |
27195 | AL=1D0/SR2*SFMIX(IFL,3)*SFMIX(IFL+1,3) | |
27196 | ENDIF | |
27197 | ENDIF | |
27198 | XL=PYLAMF(XMI2,XMSF2**2,XMB**2) | |
27199 | LKNT=LKNT+1 | |
27200 | XLAM(LKNT)=C1/4D0/XMI3*XL**1.5D0/XMB**2*AL**2 | |
27201 | IDLAM(LKNT,3)=0 | |
27202 | IDLAM(LKNT,1)=KF2 | |
27203 | IDLAM(LKNT,2)=SIGN(24,KCHG(IFL,1)) | |
27204 | ENDIF | |
27205 | ||
27206 | C...SF -> SF' + HC | |
27207 | XMB=PMAS(37,1) | |
27208 | IF(MOD(IFL,2).EQ.0) THEN | |
27209 | KF1=KSUSY1+IFL-1 | |
27210 | ELSE | |
27211 | KF1=KSUSY1+IFL+1 | |
27212 | ENDIF | |
27213 | KF2=KF1+KSUSY1 | |
27214 | XMSF1=PMAS(PYCOMP(KF1),1) | |
27215 | XMSF2=PMAS(PYCOMP(KF2),1) | |
27216 | IF(XMI.GT.XMB+XMSF1) THEN | |
27217 | XMF=0D0 | |
27218 | XMFP=0D0 | |
27219 | AT=0D0 | |
27220 | AB=0D0 | |
27221 | IF(MOD(IFL,2).EQ.0) THEN | |
27222 | C...T1-> B1 HC | |
27223 | IF(ILR.EQ.1) THEN | |
27224 | CH1=-SFMIX(IFL,1)*SFMIX(IFL-1,1) | |
27225 | CH2= SFMIX(IFL,2)*SFMIX(IFL-1,2) | |
27226 | CH3=-SFMIX(IFL,1)*SFMIX(IFL-1,2) | |
27227 | CH4=-SFMIX(IFL,2)*SFMIX(IFL-1,1) | |
27228 | C...T2-> B1 HC | |
27229 | ELSE | |
27230 | CH1= SFMIX(IFL,3)*SFMIX(IFL-1,1) | |
27231 | CH2=-SFMIX(IFL,4)*SFMIX(IFL-1,2) | |
27232 | CH3= SFMIX(IFL,3)*SFMIX(IFL-1,2) | |
27233 | CH4= SFMIX(IFL,4)*SFMIX(IFL-1,1) | |
27234 | ENDIF | |
27235 | IF(IFL.EQ.6) THEN | |
27236 | XMF=XMTOP | |
27237 | XMFP=XMBOT | |
27238 | AT=ATRIT | |
27239 | AB=ATRIB | |
27240 | ENDIF | |
27241 | ELSE | |
27242 | C...B1 -> T1 HC | |
27243 | IF(ILR.EQ.1) THEN | |
27244 | CH1=-SFMIX(IFL+1,1)*SFMIX(IFL,1) | |
27245 | CH2= SFMIX(IFL+1,2)*SFMIX(IFL,2) | |
27246 | CH3=-SFMIX(IFL+1,1)*SFMIX(IFL,2) | |
27247 | CH4=-SFMIX(IFL+1,2)*SFMIX(IFL,1) | |
27248 | C...B2-> T1 HC | |
27249 | ELSE | |
27250 | CH1= SFMIX(IFL,3)*SFMIX(IFL+1,1) | |
27251 | CH2=-SFMIX(IFL,4)*SFMIX(IFL+1,2) | |
27252 | CH3= SFMIX(IFL,4)*SFMIX(IFL+1,1) | |
27253 | CH4= SFMIX(IFL,3)*SFMIX(IFL+1,2) | |
27254 | ENDIF | |
27255 | IF(IFL.EQ.5) THEN | |
27256 | XMF=XMTOP | |
27257 | XMFP=XMBOT | |
27258 | AT=ATRIT | |
27259 | AB=ATRIB | |
27260 | ENDIF | |
27261 | ENDIF | |
27262 | XL=PYLAMF(XMI2,XMSF1**2,XMB**2) | |
27263 | LKNT=LKNT+1 | |
27264 | AL=CH1*(XMW2*2D0*CBETA*SBETA-XMFP**2*TANB-XMF**2/TANB)+ | |
27265 | & CH2*2D0*XMF*XMFP/(2D0*CBETA*SBETA)+ | |
27266 | & CH3*XMFP*(-XMU+AB*TANB)+CH4*XMF*(-XMU+AT/TANB) | |
27267 | XLAM(LKNT)=C1/8D0/XMI3*SQRT(XL)/XMW2*AL**2 | |
27268 | IDLAM(LKNT,3)=0 | |
27269 | IDLAM(LKNT,1)=KF1 | |
27270 | IDLAM(LKNT,2)=SIGN(37,KCHG(IFL,1)) | |
27271 | ENDIF | |
27272 | IF(XMI.GT.XMB+XMSF2) THEN | |
27273 | XMF=0D0 | |
27274 | XMFP=0D0 | |
27275 | AT=0D0 | |
27276 | AB=0D0 | |
27277 | IF(MOD(IFL,2).EQ.0) THEN | |
27278 | C...T1-> B2 HC | |
27279 | IF(ILR.EQ.1) THEN | |
27280 | CH1= SFMIX(IFL-1,3)*SFMIX(IFL,1) | |
27281 | CH2=-SFMIX(IFL-1,4)*SFMIX(IFL,2) | |
27282 | CH3= SFMIX(IFL-1,4)*SFMIX(IFL,1) | |
27283 | CH4= SFMIX(IFL-1,3)*SFMIX(IFL,2) | |
27284 | C...T2-> B2 HC | |
27285 | ELSE | |
27286 | CH1= -SFMIX(IFL,3)*SFMIX(IFL-1,3) | |
27287 | CH2= SFMIX(IFL,4)*SFMIX(IFL-1,4) | |
27288 | CH3= -SFMIX(IFL,3)*SFMIX(IFL-1,4) | |
27289 | CH4= -SFMIX(IFL,4)*SFMIX(IFL-1,3) | |
27290 | ENDIF | |
27291 | IF(IFL.EQ.6) THEN | |
27292 | XMF=XMTOP | |
27293 | XMFP=XMBOT | |
27294 | AT=ATRIT | |
27295 | AB=ATRIB | |
27296 | ENDIF | |
27297 | ELSE | |
27298 | C...B1 -> T2 HC | |
27299 | IF(ILR.EQ.1) THEN | |
27300 | CH1= SFMIX(IFL+1,3)*SFMIX(IFL,1) | |
27301 | CH2=-SFMIX(IFL+1,4)*SFMIX(IFL,2) | |
27302 | CH3= SFMIX(IFL+1,3)*SFMIX(IFL,2) | |
27303 | CH4= SFMIX(IFL+1,4)*SFMIX(IFL,1) | |
27304 | C...B2-> T2 HC | |
27305 | ELSE | |
27306 | CH1= -SFMIX(IFL+1,3)*SFMIX(IFL,3) | |
27307 | CH2= SFMIX(IFL+1,4)*SFMIX(IFL,4) | |
27308 | CH3= -SFMIX(IFL+1,3)*SFMIX(IFL,4) | |
27309 | CH4= -SFMIX(IFL+1,4)*SFMIX(IFL,3) | |
27310 | ENDIF | |
27311 | IF(IFL.EQ.5) THEN | |
27312 | XMF=XMTOP | |
27313 | XMFP=XMBOT | |
27314 | AT=ATRIT | |
27315 | AB=ATRIB | |
27316 | ENDIF | |
27317 | ENDIF | |
27318 | XL=PYLAMF(XMI2,XMSF1**2,XMB**2) | |
27319 | LKNT=LKNT+1 | |
27320 | AL=CH1*(XMW2*2D0*CBETA*SBETA-XMFP**2*TANB-XMF**2/TANB)+ | |
27321 | & CH2*2D0*XMF*XMFP/(2D0*CBETA*SBETA)+ | |
27322 | & CH3*XMFP*(-XMU+AB*TANB)+CH4*XMF*(-XMU+AT/TANB) | |
27323 | XLAM(LKNT)=C1/8D0/XMI3*SQRT(XL)/XMW2*AL**2 | |
27324 | IDLAM(LKNT,3)=0 | |
27325 | IDLAM(LKNT,1)=KF2 | |
27326 | IDLAM(LKNT,2)=SIGN(37,KCHG(IFL,1)) | |
27327 | ENDIF | |
27328 | ||
27329 | C...2-BODY DECAYS OF SQUARK -> QUARK GLUINO | |
27330 | ||
27331 | IF(IFL.LE.6) THEN | |
27332 | XMFP=0D0 | |
27333 | XMF=0D0 | |
27334 | IF(IFL.EQ.6) XMF=PMAS(6,1) | |
27335 | IF(IFL.EQ.5) XMF=PMAS(5,1) | |
27336 | XMJ=PMAS(PYCOMP(KSUSY1+21),1) | |
27337 | AXMJ=ABS(XMJ) | |
27338 | IF(XMI.GE.AXMJ+XMF) THEN | |
27339 | AL=-SFMIX(IFL,2) | |
27340 | BL=SFMIX(IFL,1) | |
27341 | AR=-SFMIX(IFL,4) | |
27342 | BR=SFMIX(IFL,3) | |
27343 | C...F1 -> F CHI | |
27344 | IF(ILR.EQ.1) THEN | |
27345 | CA=AL | |
27346 | CB=BL | |
27347 | C...F2 -> F CHI | |
27348 | ELSE | |
27349 | CA=AR | |
27350 | CB=BR | |
27351 | ENDIF | |
27352 | LKNT=LKNT+1 | |
27353 | XMA2=XMJ**2 | |
27354 | XMB2=XMF**2 | |
27355 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
27356 | XLAM(LKNT)=4D0/3D0*AS/2D0/XMI3*SQRT(XL)*((XMI2-XMB2-XMA2)* | |
27357 | & (CA**2+CB**2)-4D0*CA*CB*XMJ*XMF) | |
27358 | IDLAM(LKNT,1)=KSUSY1+21 | |
27359 | IDLAM(LKNT,2)=IFL | |
27360 | IDLAM(LKNT,3)=0 | |
27361 | ENDIF | |
27362 | ENDIF | |
27363 | ||
27364 | C...IF NOTHING ELSE FOR T1, THEN T1* -> C+CHI0 | |
27365 | IF(KFIN.EQ.KSUSY1+6.AND.PMAS(KCIN,1).GT. | |
27366 | &PMAS(PYCOMP(KSUSY1+22),1)+PMAS(4,1)) THEN | |
27367 | C...THIS IS A BACK-OF-THE-ENVELOPE ESTIMATE | |
27368 | C...M = 1/(16PI**2)G**3 = G*2/(4PI) G/(4PI) = C1 * G/(4PI) | |
27369 | C...M*M = C1**2 * G**2/(16PI**2) | |
27370 | C...G = 1/(8PI)P/MI**2 * M*M = C1**3/(32PI**2)*LAM/(2*MI**3) | |
27371 | LKNT=LKNT+1 | |
27372 | XL=PYLAMF(XMI2,0D0,PMAS(PYCOMP(KSUSY1+22),1)**2) | |
27373 | XLAM(LKNT)=C1**3/64D0/PI**2/XMI3*SQRT(XL) | |
27374 | IF(XLAM(LKNT).EQ.0) XLAM(LKNT)=1D-3 | |
27375 | IDLAM(LKNT,1)=KSUSY1+22 | |
27376 | IDLAM(LKNT,2)=4 | |
27377 | IDLAM(LKNT,3)=0 | |
27378 | ENDIF | |
27379 | ||
27380 | IKNT=LKNT | |
27381 | XLAM(0)=0D0 | |
27382 | DO 130 I=1,IKNT | |
27383 | IF(XLAM(I).LT.0D0) XLAM(I)=0D0 | |
27384 | XLAM(0)=XLAM(0)+XLAM(I) | |
27385 | 130 CONTINUE | |
27386 | IF(XLAM(0).EQ.0D0) XLAM(0)=1D-3 | |
27387 | ||
27388 | RETURN | |
27389 | END | |
27390 | ||
27391 | C********************************************************************* | |
27392 | ||
27393 | C...PYGLUI | |
27394 | C...Calculates gluino decay modes. | |
27395 | ||
27396 | SUBROUTINE PYGLUI(KFIN,XLAM,IDLAM,IKNT) | |
27397 | ||
27398 | C...Double precision and integer declarations. | |
27399 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
27400 | INTEGER PYK,PYCHGE,PYCOMP | |
27401 | C...Parameter statement to help give large particle numbers. | |
27402 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
27403 | C...Commonblocks. | |
27404 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
27405 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
27406 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
27407 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
27408 | &SFMIX(16,4) | |
27409 | COMMON/PYINTS/XXM(20) | |
27410 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/,/PYINTS/ | |
27411 | ||
27412 | C...Local variables. | |
27413 | INTEGER KFIN,KCIN,KF | |
27414 | DOUBLE PRECISION XMI,XMJ,XMF,XMSF1,XMSF2,XMW,XMW2, | |
27415 | &XMZ,XMZ2,AXMJ,AXMI | |
27416 | DOUBLE PRECISION XMI2,XMI3,XMJ2,XMA2,XMB2,XMFP | |
27417 | DOUBLE PRECISION C1L,C1R,D1L,D1R | |
27418 | DOUBLE PRECISION C2L,C2R,D2L,D2R | |
27419 | DOUBLE PRECISION PYLAMF,XL | |
27420 | DOUBLE PRECISION TANW,XW,AEM,C1,AS,S12MAX,S12MIN | |
27421 | DOUBLE PRECISION CA,CB,AL,AR,BL,BR | |
27422 | DOUBLE PRECISION ALFA,BETA | |
27423 | DOUBLE PRECISION SW,CW,SINB,COSB,QT,T3 | |
27424 | DOUBLE PRECISION XLAM(0:200) | |
27425 | INTEGER IDLAM(200,3) | |
27426 | INTEGER LKNT,IX,IC,ILR,IDU,J,IJ,I,IKNT,IFL | |
27427 | DOUBLE PRECISION SR2 | |
27428 | DOUBLE PRECISION GAM | |
27429 | DOUBLE PRECISION PYALEM,PI,PYALPS,EI | |
27430 | DOUBLE PRECISION PYGAUS | |
27431 | EXTERNAL PYGAUS,PYXXZ5,PYXXW5,PYXXZ2 | |
27432 | DOUBLE PRECISION PREC | |
27433 | INTEGER KFNCHI(4),KFCCHI(2) | |
27434 | DATA PI/3.141592654D0/ | |
27435 | DATA SR2/1.4142136D0/ | |
27436 | DATA PREC/1D-2/ | |
27437 | DATA KFNCHI/1000022,1000023,1000025,1000035/ | |
27438 | DATA KFCCHI/1000024,1000037/ | |
27439 | ||
27440 | C...COUNT THE NUMBER OF DECAY MODES | |
27441 | LKNT=0 | |
27442 | IF(KFIN.NE.KSUSY1+21) RETURN | |
27443 | KCIN=PYCOMP(KFIN) | |
27444 | ||
27445 | XMW=PMAS(24,1) | |
27446 | XMW2=XMW**2 | |
27447 | XMZ=PMAS(23,1) | |
27448 | XMZ2=XMZ**2 | |
27449 | XW=PARU(102) | |
27450 | TANW = SQRT(XW/(1D0-XW)) | |
27451 | ||
27452 | XMI=PMAS(KCIN,1) | |
27453 | AXMI=ABS(XMI) | |
27454 | XMI2=XMI**2 | |
27455 | AEM=PYALEM(XMI2) | |
27456 | AS =PYALPS(XMI2) | |
27457 | C1=AEM/XW | |
27458 | XMI3=XMI**3 | |
27459 | BETA=ATAN(RMSS(5)) | |
27460 | ||
27461 | C...2-BODY DECAYS OF GLUINO -> GRAVITINO GLUON | |
27462 | ||
27463 | IF(IMSS(11).EQ.1) THEN | |
27464 | XMP=RMSS(28) | |
27465 | IDG=39+KSUSY1 | |
27466 | XMGR=PMAS(PYCOMP(IDG),1) | |
27467 | XFAC=(XMI2/(XMP*XMGR))**2*XMI/48D0/PI | |
27468 | IF(AXMI.GT.XMGR) THEN | |
27469 | LKNT=LKNT+1 | |
27470 | IDLAM(LKNT,1)=IDG | |
27471 | IDLAM(LKNT,2)=21 | |
27472 | IDLAM(LKNT,3)=0 | |
27473 | XLAM(LKNT)=XFAC | |
27474 | ENDIF | |
27475 | ENDIF | |
27476 | ||
27477 | C...2-BODY DECAYS OF GLUINO -> QUARK SQUARK | |
27478 | ||
27479 | DO 110 IFL=1,6 | |
27480 | DO 100 ILR=1,2 | |
27481 | XMJ=PMAS(PYCOMP(ILR*KSUSY1+IFL),1) | |
27482 | AXMJ=ABS(XMJ) | |
27483 | XMF=PMAS(IFL,1) | |
27484 | IDU=3-(1+MOD(IFL,2)) | |
27485 | IF(XMI.GE.AXMJ+XMF) THEN | |
27486 | AL=SFMIX(IFL,1) | |
27487 | BL=SFMIX(IFL,2) | |
27488 | AR=SFMIX(IFL,3) | |
27489 | BR=SFMIX(IFL,4) | |
27490 | C...F1 -> F CHI | |
27491 | IF(ILR.EQ.1) THEN | |
27492 | CA=AL | |
27493 | CB=BL | |
27494 | C...F2 -> F CHI | |
27495 | ELSE | |
27496 | CA=AR | |
27497 | CB=BR | |
27498 | ENDIF | |
27499 | LKNT=LKNT+1 | |
27500 | XMA2=XMJ**2 | |
27501 | XMB2=XMF**2 | |
27502 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
27503 | XLAM(LKNT)=4D0/8D0*AS/4D0/XMI3*SQRT(XL)*((XMI2+XMB2-XMA2)* | |
27504 | & (CA**2+CB**2)+4D0*CA*CB*XMI*XMF) | |
27505 | IDLAM(LKNT,1)=ILR*KSUSY1+IFL | |
27506 | IDLAM(LKNT,2)=-IFL | |
27507 | IDLAM(LKNT,3)=0 | |
27508 | LKNT=LKNT+1 | |
27509 | XLAM(LKNT)=XLAM(LKNT-1) | |
27510 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
27511 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
27512 | IDLAM(LKNT,3)=0 | |
27513 | ENDIF | |
27514 | 100 CONTINUE | |
27515 | 110 CONTINUE | |
27516 | ||
27517 | C...3-BODY DECAYS TO GAUGINO FERMION-FERMION | |
27518 | C...GLUINO -> NI Q QBAR | |
27519 | DO 160 IX=1,4 | |
27520 | XMJ=SMZ(IX) | |
27521 | AXMJ=ABS(XMJ) | |
27522 | IF(XMI.GE.AXMJ) THEN | |
27523 | XXM(1)=0D0 | |
27524 | XXM(2)=XMJ | |
27525 | XXM(3)=0D0 | |
27526 | XXM(4)=XMI | |
27527 | XXM(5)=PMAS(PYCOMP(KSUSY1+1),1) | |
27528 | XXM(6)=PMAS(PYCOMP(KSUSY2+1),1) | |
27529 | XXM(7)=1D6 | |
27530 | XXM(8)=0D0 | |
27531 | XXM(9)=0D0 | |
27532 | XXM(10)=0D0 | |
27533 | S12MIN=0D0 | |
27534 | S12MAX=(XMI-AXMJ)**2 | |
27535 | C...D-TYPE QUARKS | |
27536 | XXM(11)=0D0 | |
27537 | XXM(12)=0D0 | |
27538 | XXM(13)=1D0 | |
27539 | XXM(14)=-SR2*(-0.5D0*ZMIX(IX,2)+TANW*ZMIX(IX,1)/6D0) | |
27540 | XXM(15)=1D0 | |
27541 | XXM(16)=SR2*(-TANW*ZMIX(IX,1)/3D0) | |
27542 | IF( XXM(5).LT.AXMI .OR. XXM(6).LT.AXMI ) GOTO 120 | |
27543 | IF(XMI.GE.AXMJ+2D0*PMAS(1,1)) THEN | |
27544 | LKNT=LKNT+1 | |
27545 | XLAM(LKNT)=C1*AS/XMI3/(16D0*PI)* | |
27546 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-2) | |
27547 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27548 | IDLAM(LKNT,2)=1 | |
27549 | IDLAM(LKNT,3)=-1 | |
27550 | ENDIF | |
27551 | IF(XMI.GE.AXMJ+2D0*PMAS(3,1)) THEN | |
27552 | LKNT=LKNT+1 | |
27553 | XLAM(LKNT)=XLAM(LKNT-1) | |
27554 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27555 | IDLAM(LKNT,2)=3 | |
27556 | IDLAM(LKNT,3)=-3 | |
27557 | ENDIF | |
27558 | 120 CONTINUE | |
27559 | IF( XXM(5).LT.AXMI .OR. XXM(6).LT.AXMI ) GOTO 130 | |
27560 | IF(XMI.GE.AXMJ+2D0*PMAS(5,1)) THEN | |
27561 | CALL PYTBBN(IX,80,-1D0/3D0,AXMI,GAM) | |
27562 | LKNT=LKNT+1 | |
27563 | XLAM(LKNT)=GAM | |
27564 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27565 | IDLAM(LKNT,2)=5 | |
27566 | IDLAM(LKNT,3)=-5 | |
27567 | ENDIF | |
27568 | C...U-TYPE QUARKS | |
27569 | 130 CONTINUE | |
27570 | XXM(5)=PMAS(PYCOMP(KSUSY1+2),1) | |
27571 | XXM(6)=PMAS(PYCOMP(KSUSY2+2),1) | |
27572 | XXM(13)=1D0 | |
27573 | XXM(14)=-SR2*(0.5D0*ZMIX(IX,2)+TANW*ZMIX(IX,1)/6D0) | |
27574 | XXM(15)=1D0 | |
27575 | XXM(16)=SR2*(2D0*TANW*ZMIX(IX,1)/3D0) | |
27576 | IF( XXM(5).LT.AXMI .OR. XXM(6).LT.AXMI ) GOTO 140 | |
27577 | IF(XMI.GE.AXMJ+2D0*PMAS(2,1)) THEN | |
27578 | LKNT=LKNT+1 | |
27579 | XLAM(LKNT)=C1*AS/XMI3/(16D0*PI)* | |
27580 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-2) | |
27581 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27582 | IDLAM(LKNT,2)=2 | |
27583 | IDLAM(LKNT,3)=-2 | |
27584 | ENDIF | |
27585 | IF(XMI.GE.AXMJ+2D0*PMAS(4,1)) THEN | |
27586 | LKNT=LKNT+1 | |
27587 | XLAM(LKNT)=XLAM(LKNT-1) | |
27588 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27589 | IDLAM(LKNT,2)=4 | |
27590 | IDLAM(LKNT,3)=-4 | |
27591 | ENDIF | |
27592 | 140 CONTINUE | |
27593 | C...INCLUDE THE DECAY GLUINO -> NJ + T + T~ | |
27594 | C...IF THE DECAY GLUINO -> ST + T CANNOT OCCUR | |
27595 | IF(XMI.GE.PMAS(PYCOMP(KSUSY1+6),1)+PMAS(6,1)) GOTO 150 | |
27596 | XMF=PMAS(6,1) | |
27597 | IF(XMI.GE.AXMJ+2D0*XMF) THEN | |
27598 | CALL PYTBBN(IX,80,2D0/3D0,AXMI,GAM) | |
27599 | LKNT=LKNT+1 | |
27600 | XLAM(LKNT)=GAM | |
27601 | IDLAM(LKNT,1)=KFNCHI(IX) | |
27602 | IDLAM(LKNT,2)=6 | |
27603 | IDLAM(LKNT,3)=-6 | |
27604 | ENDIF | |
27605 | 150 CONTINUE | |
27606 | ENDIF | |
27607 | 160 CONTINUE | |
27608 | ||
27609 | C...GLUINO -> CI Q QBAR' | |
27610 | DO 190 IX=1,2 | |
27611 | XMJ=SMW(IX) | |
27612 | AXMJ=ABS(XMJ) | |
27613 | IF(XMI.GE.AXMJ) THEN | |
27614 | S12MIN=0D0 | |
27615 | S12MAX=(AXMI-AXMJ)**2 | |
27616 | XXM(1)=0D0 | |
27617 | XXM(2)=XMJ | |
27618 | XXM(3)=0D0 | |
27619 | XXM(4)=XMI | |
27620 | XXM(5)=0D0 | |
27621 | XXM(6)=0D0 | |
27622 | XXM(9)=1D6 | |
27623 | XXM(10)=0D0 | |
27624 | XXM(7)=UMIX(IX,1)*SR2 | |
27625 | XXM(8)=VMIX(IX,1)*SR2 | |
27626 | XXM(11)=PMAS(PYCOMP(KSUSY1+1),1) | |
27627 | XXM(12)=PMAS(PYCOMP(KSUSY1+2),1) | |
27628 | IF( XXM(11).LT.AXMI .OR. XXM(12).LT.AXMI ) GOTO 170 | |
27629 | IF(XMI.GE.AXMJ+PMAS(1,1)+PMAS(2,1)) THEN | |
27630 | LKNT=LKNT+1 | |
27631 | XLAM(LKNT)=0.5D0*C1*AS/XMI3/(16D0*PI)* | |
27632 | & PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
27633 | IDLAM(LKNT,1)=KFCCHI(IX) | |
27634 | IDLAM(LKNT,2)=1 | |
27635 | IDLAM(LKNT,3)=-2 | |
27636 | LKNT=LKNT+1 | |
27637 | XLAM(LKNT)=XLAM(LKNT-1) | |
27638 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
27639 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
27640 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
27641 | ENDIF | |
27642 | IF(XMI.GE.AXMJ+PMAS(3,1)+PMAS(4,1)) THEN | |
27643 | LKNT=LKNT+1 | |
27644 | XLAM(LKNT)=XLAM(LKNT-1) | |
27645 | IDLAM(LKNT,1)=KFCCHI(IX) | |
27646 | IDLAM(LKNT,2)=3 | |
27647 | IDLAM(LKNT,3)=-4 | |
27648 | LKNT=LKNT+1 | |
27649 | XLAM(LKNT)=XLAM(LKNT-1) | |
27650 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
27651 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
27652 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
27653 | ENDIF | |
27654 | 170 CONTINUE | |
27655 | ||
27656 | IF(XMI.GE.PMAS(PYCOMP(KSUSY1+5),1)+PMAS(5,1)) GOTO 180 | |
27657 | IF(XMI.GE.PMAS(PYCOMP(KSUSY1+6),1)+PMAS(6,1)) GOTO 180 | |
27658 | XMF=PMAS(6,1) | |
27659 | XMFP=PMAS(5,1) | |
27660 | IF(XMI.GE.AXMJ+XMF+XMFP) THEN | |
27661 | CALL PYTBBC(IX,80,AXMI,GAM) | |
27662 | LKNT=LKNT+1 | |
27663 | XLAM(LKNT)=GAM | |
27664 | IDLAM(LKNT,1)=KFCCHI(IX) | |
27665 | IDLAM(LKNT,2)=5 | |
27666 | IDLAM(LKNT,3)=-6 | |
27667 | LKNT=LKNT+1 | |
27668 | XLAM(LKNT)=XLAM(LKNT-1) | |
27669 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
27670 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
27671 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
27672 | ENDIF | |
27673 | 180 CONTINUE | |
27674 | ENDIF | |
27675 | 190 CONTINUE | |
27676 | ||
27677 | IKNT=LKNT | |
27678 | XLAM(0)=0D0 | |
27679 | DO 200 I=1,IKNT | |
27680 | IF(XLAM(I).LT.0D0) XLAM(I)=0D0 | |
27681 | XLAM(0)=XLAM(0)+XLAM(I) | |
27682 | 200 CONTINUE | |
27683 | IF(XLAM(0).EQ.0D0) XLAM(0)=1D-6 | |
27684 | ||
27685 | RETURN | |
27686 | END | |
27687 | ||
27688 | C********************************************************************* | |
27689 | ||
27690 | C...PYTBBN | |
27691 | C...Calculates the three-body decay of gluinos into | |
27692 | C...neutralinos and third generation fermions. | |
27693 | ||
27694 | SUBROUTINE PYTBBN(I,NN,E,XMGLU,GAM) | |
27695 | ||
27696 | C...Double precision and integer declarations. | |
27697 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
27698 | INTEGER PYK,PYCHGE,PYCOMP | |
27699 | C...Parameter statement to help give large particle numbers. | |
27700 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
27701 | C...Commonblocks. | |
27702 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
27703 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
27704 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
27705 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
27706 | &SFMIX(16,4) | |
27707 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/ | |
27708 | ||
27709 | C...Local variables. | |
27710 | EXTERNAL PYSIMP,PYLAMF | |
27711 | INTEGER LIN,NN | |
27712 | DOUBLE PRECISION COSD,SIND,COSD2,SIND2,COS2D,SIN2D | |
27713 | DOUBLE PRECISION HL,HR,FL,FR,HL2,HR2,FL2,FR2 | |
27714 | DOUBLE PRECISION XMS2(2),XM,XM2,XMG,XMG2,XMR,XMR2 | |
27715 | DOUBLE PRECISION SBAR,SMIN,SMAX,XMQA,W,GRS,G(0:6),SUMME(0:100) | |
27716 | DOUBLE PRECISION FF,HH,HFL,HFR,HRFL,HLFR,XMQ4,XM24 | |
27717 | DOUBLE PRECISION XLN1,XLN2,B1,B2 | |
27718 | DOUBLE PRECISION E,XMGLU,GAM | |
27719 | DOUBLE PRECISION PYSIMP,PYLAMF | |
27720 | DOUBLE PRECISION HRB(4),HLB(4),FLB(4),FRB(4) | |
27721 | SAVE HRB,HLB,FLB,FRB | |
27722 | DOUBLE PRECISION ALPHAW,ALPHAS,GSU2 | |
27723 | DOUBLE PRECISION HLT(4),HRT(4),FLT(4),FRT(4) | |
27724 | SAVE HLT,HRT,FLT,FRT | |
27725 | DOUBLE PRECISION AMC(2),AMN(4),AN(4,4),ZN(3),FLU(4),FRU(4), | |
27726 | &FLD(4),FRD(4) | |
27727 | SAVE AMC,AMN,AN,ZN,FLU,FRU,FLD,FRD | |
27728 | DOUBLE PRECISION AMBOT,AMSB(2),SINC,COSC | |
27729 | DOUBLE PRECISION AMTOP,AMST(2),SINA,COSA | |
27730 | SAVE AMSB,AMST | |
27731 | DOUBLE PRECISION SINW,COSW,TANW,COSW2,SINW2 | |
27732 | DOUBLE PRECISION ROT1(4,4) | |
27733 | LOGICAL IFIRST | |
27734 | SAVE IFIRST | |
27735 | DATA IFIRST/.TRUE./ | |
27736 | ||
27737 | TANB=RMSS(5) | |
27738 | SINB=TANB/SQRT(1D0+TANB**2) | |
27739 | COSB=SINB/TANB | |
27740 | XW=PARU(102) | |
27741 | SINW=SQRT(XW) | |
27742 | COSW=SQRT(1D0-XW) | |
27743 | TANW=SINW/COSW | |
27744 | AMW=PMAS(24,1) | |
27745 | COSC=SFMIX(5,1) | |
27746 | SINC=SFMIX(5,3) | |
27747 | COSA=SFMIX(6,1) | |
27748 | SINA=SFMIX(6,3) | |
27749 | AMBOT=0D0 | |
27750 | AMTOP=PYRNMT(PMAS(6,1)) | |
27751 | W2=SQRT(2D0) | |
27752 | FAKT1=AMBOT/W2/AMW/COSB | |
27753 | FAKT2=AMTOP/W2/AMW/SINB | |
27754 | IF(IFIRST) THEN | |
27755 | DO 110 II=1,4 | |
27756 | AMN(II)=SMZ(II) | |
27757 | DO 100 J=1,4 | |
27758 | ROT1(II,J)=0D0 | |
27759 | AN(II,J)=0D0 | |
27760 | 100 CONTINUE | |
27761 | 110 CONTINUE | |
27762 | ROT1(1,1)=COSW | |
27763 | ROT1(1,2)=-SINW | |
27764 | ROT1(2,1)=-ROT1(1,2) | |
27765 | ROT1(2,2)=ROT1(1,1) | |
27766 | ROT1(3,3)=COSB | |
27767 | ROT1(3,4)=SINB | |
27768 | ROT1(4,3)=-ROT1(3,4) | |
27769 | ROT1(4,4)=ROT1(3,3) | |
27770 | DO 140 II=1,4 | |
27771 | DO 130 J=1,4 | |
27772 | DO 120 JJ=1,4 | |
27773 | AN(II,J)=AN(II,J)+ZMIX(II,JJ)*ROT1(JJ,J) | |
27774 | 120 CONTINUE | |
27775 | 130 CONTINUE | |
27776 | 140 CONTINUE | |
27777 | DO 150 J=1,4 | |
27778 | ZN(1)=-FAKT2*(-SINB*AN(J,3)+COSB*AN(J,4)) | |
27779 | ZN(2)=-2D0*W2/3D0*SINW*(TANW*AN(J,2)-AN(J,1)) | |
27780 | ZN(3)=-2*W2/3D0*SINW*AN(J,1)-W2*(0.5D0-2D0/3D0* | |
27781 | & XW)*AN(J,2)/COSW | |
27782 | HRT(J)=ZN(1)*COSA-ZN(3)*SINA | |
27783 | HLT(J)=ZN(1)*COSA+ZN(2)*SINA | |
27784 | FLT(J)=ZN(3)*COSA+ZN(1)*SINA | |
27785 | FRT(J)=ZN(2)*COSA-ZN(1)*SINA | |
27786 | FLU(J)=ZN(3) | |
27787 | FRU(J)=ZN(2) | |
27788 | ZN(1)=-FAKT1*(COSB*AN(J,3)+SINB*AN(J,4)) | |
27789 | ZN(2)=W2/3D0*SINW*(TANW*AN(J,2)-AN(J,1)) | |
27790 | ZN(3)=W2/3D0*SINW*AN(J,1)+W2*(0.5D0-XW/3D0)*AN(J,2)/COSW | |
27791 | HRB(J)=ZN(1)*COSC-ZN(3)*SINC | |
27792 | HLB(J)=ZN(1)*COSC+ZN(2)*SINC | |
27793 | FLB(J)=ZN(3)*COSC+ZN(1)*SINC | |
27794 | FRB(J)=ZN(2)*COSC-ZN(1)*SINC | |
27795 | FLD(J)=ZN(3) | |
27796 | FRD(J)=ZN(2) | |
27797 | 150 CONTINUE | |
27798 | AMST(1)=PMAS(PYCOMP(KSUSY1+6),1) | |
27799 | AMST(2)=PMAS(PYCOMP(KSUSY2+6),1) | |
27800 | AMSB(1)=PMAS(PYCOMP(KSUSY1+5),1) | |
27801 | AMSB(2)=PMAS(PYCOMP(KSUSY2+5),1) | |
27802 | IFIRST=.FALSE. | |
27803 | ENDIF | |
27804 | ||
27805 | IF(NINT(3D0*E).EQ.2) THEN | |
27806 | HL=HLT(I) | |
27807 | HR=HRT(I) | |
27808 | FL=FLT(I) | |
27809 | FR=FRT(I) | |
27810 | COSD=SFMIX(6,1) | |
27811 | SIND=SFMIX(6,3) | |
27812 | XMS2(1)=PMAS(PYCOMP(KSUSY1+6),1)**2 | |
27813 | XMS2(2)=PMAS(PYCOMP(KSUSY2+6),1)**2 | |
27814 | XM=PMAS(6,1) | |
27815 | ELSE | |
27816 | HL=HLB(I) | |
27817 | HR=HRB(I) | |
27818 | FL=FLB(I) | |
27819 | FR=FRB(I) | |
27820 | COSD=SFMIX(5,1) | |
27821 | SIND=SFMIX(5,3) | |
27822 | XMS2(1)=PMAS(PYCOMP(KSUSY1+5),1)**2 | |
27823 | XMS2(2)=PMAS(PYCOMP(KSUSY2+5),1)**2 | |
27824 | XM=PMAS(5,1) | |
27825 | ENDIF | |
27826 | COSD2=COSD*COSD | |
27827 | SIND2=SIND*SIND | |
27828 | COS2D=COSD2-SIND2 | |
27829 | SIN2D=SIND*COSD*2D0 | |
27830 | HL2=HL*HL | |
27831 | HR2=HR*HR | |
27832 | FL2=FL*FL | |
27833 | FR2=FR*FR | |
27834 | FF=FL*FR | |
27835 | HH=HL*HR | |
27836 | HFL=HL*FL | |
27837 | HFR=HR*FR | |
27838 | HRFL=HR*FL | |
27839 | HLFR=HL*FR | |
27840 | XM2=XM*XM | |
27841 | XMG=XMGLU | |
27842 | XMG2=XMG*XMG | |
27843 | ALPHAW=PYALEM(XMG2) | |
27844 | ALPHAS=PYALPS(XMG2) | |
27845 | XMR=AMN(I) | |
27846 | XMR2=XMR*XMR | |
27847 | XMQ4=XMG*XM2*XMR | |
27848 | XM24=(XMG2+XM2)*(XM2+XMR2) | |
27849 | SMIN=4D0*XM2 | |
27850 | SMAX=(XMG-ABS(XMR))**2 | |
27851 | XMQA=XMG2+2D0*XM2+XMR2 | |
27852 | DO 170 LIN=1,NN-1 | |
27853 | SBAR=SMIN+DBLE(LIN)*(SMAX-SMIN)/DBLE(NN) | |
27854 | GRS=SBAR-XMQA | |
27855 | W=PYLAMF(XMG2,XMR2,SBAR)*(0.25D0-XM2/SBAR) | |
27856 | W=DSQRT(W) | |
27857 | XLN1=LOG(ABS((GRS/2D0+XMS2(1)-W)/(GRS/2D0+XMS2(1)+W))) | |
27858 | XLN2=LOG(ABS((GRS/2D0+XMS2(2)-W)/(GRS/2D0+XMS2(2)+W))) | |
27859 | B1=1D0/(GRS/2D0+XMS2(1)-W)-1D0/(GRS/2D0+XMS2(1)+W) | |
27860 | B2=1D0/(GRS/2D0+XMS2(2)-W)-1D0/(GRS/2D0+XMS2(2)+W) | |
27861 | G(0)=-2D0*(HL2+FL2+HR2+FR2+(HFR-HFL)*SIN2D | |
27862 | & +2D0*(FF*SIND2-HH*COSD2))*W | |
27863 | G(1)=((HL2+FL2)*(XMQA-2D0*XMS2(1)-2D0*XM*XMG*SIN2D) | |
27864 | & +4D0*HFL*XM*XMR)*XLN1 | |
27865 | & +((HL2+FL2)*((XMQA-XMS2(1))*XMS2(1)-XM24 | |
27866 | & +2D0*XM*XMG*(XM2+XMR2-XMS2(1))*SIN2D) | |
27867 | & -4D0*HFL*XMR*XM*(XMG2+XM2-XMS2(1)) | |
27868 | & +8D0*HFL*XMQ4*SIN2D)*B1 | |
27869 | G(2)=((HR2+FR2)*(XMQA-2D0*XMS2(2)+2D0*XM*XMG*SIN2D) | |
27870 | & +4D0*HFR*XMR*XM)*XLN2 | |
27871 | & +((HR2+FR2)*((XMQA-XMS2(2))*XMS2(2)-XM24 | |
27872 | & +2D0*XMG*XM*SIN2D*(XMS2(2)-XM2-XMR2)) | |
27873 | & +4D0*HFR*XM*XMR*(XMS2(2)-XMG2-XM2) | |
27874 | & -8D0*HFR*XMQ4*SIN2D)*B2 | |
27875 | G(3)=(2D0*HFL*SIN2D*(XMS2(1)*(GRS+XMS2(1))+XM2*(SBAR-XMG2-XMR2) | |
27876 | & +XMG2*XMR2+XM2*XM2)-2D0*XMR*XMG*(HL2*SIND2+FL2*COSD2)*SBAR | |
27877 | & -2D0*XMG*XM*HFL*(SBAR+XMR2-XMG2) | |
27878 | & +XMR*XM*(HL2+FL2)*SIN2D*(SBAR+XMG2-XMR2) | |
27879 | & -4D0*XMQ4*(HL2-FL2)*COS2D)/(GRS+2D0*XMS2(1))*XLN1 | |
27880 | G(4)=4D0*COS2D*XM*XMG/(XMS2(1)-XMS2(2))* | |
27881 | & (((HLFR+HRFL)*(XM2+XMR2)+2D0*XM*XMR*(HH+FF))*(XLN1-XLN2) | |
27882 | & +(HLFR+HRFL)*(XMS2(2)*XLN2-XMS2(1)*XLN1)) | |
27883 | G(5)=(2D0*(HH*COSD2-FF*SIND2) | |
27884 | & *((XMS2(2)*(XMS2(2)+GRS)+XM2*XM2+XMG2*XMR2)*XLN2 | |
27885 | & +(XMS2(1)*(XMS2(1)+GRS)+XM2*XM2+XMG2*XMR2)*XLN1) | |
27886 | & +XM*((HH-FF)*SIN2D*XMG-(HRFL-HLFR)*XMR) | |
27887 | & *((GRS+XMS2(1)*2D0)*XLN1-(GRS+XMS2(2)*2D0)*XLN2) | |
27888 | & +((HRFL-HLFR)*XMR*(SIN2D*XMG*(SBAR-4D0*XM2) | |
27889 | & +COS2D*XM*(SBAR+XMG2-XMR2)) | |
27890 | & +2D0*(FF*COSD2-HH*SIND2)*XM2*(SBAR-XMG2-XMR2)) | |
27891 | & *(XLN1+XLN2))/(GRS+XMS2(1)+XMS2(2)) | |
27892 | G(6)=(-2D0*HFR*SIN2D*(XMS2(2)*(GRS+XMS2(2))+XM2*(SBAR-XMG2-XMR2) | |
27893 | & +XMG2*XMR2+XM2*XM2)-2D0*XMR*XMG*(HR2*SIND2+FR2*COSD2)*SBAR | |
27894 | & -2D0*XMG*XM*HFR*(SBAR+XMR2-XMG2) | |
27895 | & -XMR*XM*(HR2+FR2)*SIN2D*(SBAR+XMG2-XMR2) | |
27896 | & -4D0*XMQ4*(HR2-FR2)*COS2D)/(GRS+2D0*XMS2(2))*XLN2 | |
27897 | SUMME(LIN)=0D0 | |
27898 | DO 160 J=0,6 | |
27899 | SUMME(LIN)=SUMME(LIN)+G(J) | |
27900 | 160 CONTINUE | |
27901 | 170 CONTINUE | |
27902 | SUMME(0)=0D0 | |
27903 | SUMME(NN)=0D0 | |
27904 | GAM = ALPHAW * ALPHAS * PYSIMP(SUMME,SMIN,SMAX,NN) | |
27905 | &/ (16D0 * PARU(1) * PARU(102) * XMGLU**3) | |
27906 | ||
27907 | RETURN | |
27908 | END | |
27909 | ||
27910 | C********************************************************************* | |
27911 | ||
27912 | C...PYTBBC | |
27913 | C...Calculates the three-body decay of gluinos into | |
27914 | C...charginos and third generation fermions. | |
27915 | ||
27916 | SUBROUTINE PYTBBC(I,NN,XMGLU,GAM) | |
27917 | ||
27918 | C...Double precision and integer declarations. | |
27919 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
27920 | INTEGER PYK,PYCHGE,PYCOMP | |
27921 | C...Parameter statement to help give large particle numbers. | |
27922 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
27923 | C...Commonblocks. | |
27924 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
27925 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
27926 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
27927 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
27928 | &SFMIX(16,4) | |
27929 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/ | |
27930 | ||
27931 | C...Local variables. | |
27932 | EXTERNAL PYSIMP,PYLAMF | |
27933 | INTEGER I,NN,LIN | |
27934 | DOUBLE PRECISION XMG,XMG2,XMB,XMB2,XMR,XMR2 | |
27935 | DOUBLE PRECISION XMT,XMT2,XMST(4),XMSB(4) | |
27936 | DOUBLE PRECISION ULR(2),VLR(2),XMQ2,XMQ4,AM,W,SBAR,SMIN,SMAX | |
27937 | DOUBLE PRECISION SUMME(0:100),A(4,8) | |
27938 | DOUBLE PRECISION COS2A,SIN2A,COS2C,SIN2C | |
27939 | DOUBLE PRECISION GRS,XMQ3,XMGBTR,XMGTBR,ANT1,ANT2,ANB1,ANB2 | |
27940 | DOUBLE PRECISION XMGLU,GAM | |
27941 | DOUBLE PRECISION PYSIMP,PYLAMF | |
27942 | DOUBLE PRECISION XX1(2),XX2(2),AAA(2),BBB(2),CCC(2), | |
27943 | &DDD(2),EEE(2),FFF(2) | |
27944 | SAVE XX1,XX2,AAA,BBB,CCC,DDD,EEE,FFF | |
27945 | DOUBLE PRECISION ALPHAW,ALPHAS,GSU2 | |
27946 | DOUBLE PRECISION AMC(2),AMN(4) | |
27947 | SAVE AMC,AMN | |
27948 | DOUBLE PRECISION AMBOT,AMSB(2),SINC,COSC | |
27949 | DOUBLE PRECISION AMTOP,AMST(2),SINA,COSA | |
27950 | SAVE AMSB,AMST | |
27951 | DOUBLE PRECISION SINW,COSW,TANW,COSW2,SINW2 | |
27952 | LOGICAL IFIRST | |
27953 | SAVE IFIRST | |
27954 | DATA IFIRST/.TRUE./ | |
27955 | ||
27956 | TANB=RMSS(5) | |
27957 | SINB=TANB/SQRT(1D0+TANB**2) | |
27958 | COSB=SINB/TANB | |
27959 | XW=PARU(102) | |
27960 | SINW=SQRT(XW) | |
27961 | COSW=SQRT(1D0-XW) | |
27962 | AMW=PMAS(24,1) | |
27963 | COSC=SFMIX(5,1) | |
27964 | SINC=SFMIX(5,3) | |
27965 | COSA=SFMIX(6,1) | |
27966 | SINA=SFMIX(6,3) | |
27967 | AMBOT=0D0 | |
27968 | AMTOP=PYRNMT(PMAS(6,1)) | |
27969 | W2=SQRT(2D0) | |
27970 | AMW=PMAS(24,1) | |
27971 | FAKT1=AMBOT/W2/AMW/COSB | |
27972 | FAKT2=AMTOP/W2/AMW/SINB | |
27973 | IF(IFIRST) THEN | |
27974 | AMC(1)=SMW(1) | |
27975 | AMC(2)=SMW(2) | |
27976 | DO 100 JJ=1,2 | |
27977 | CCC(JJ)=FAKT1*UMIX(JJ,2)*SINC-UMIX(JJ,1)*COSC | |
27978 | EEE(JJ)=FAKT2*VMIX(JJ,2)*COSC | |
27979 | DDD(JJ)=FAKT1*UMIX(JJ,2)*COSC+UMIX(JJ,1)*SINC | |
27980 | FFF(JJ)=FAKT2*VMIX(JJ,2)*SINC | |
27981 | XX1(JJ)=FAKT2*VMIX(JJ,2)*SINA-VMIX(JJ,1)*COSA | |
27982 | AAA(JJ)=FAKT1*UMIX(JJ,2)*COSA | |
27983 | XX2(JJ)=FAKT2*VMIX(JJ,2)*COSA+VMIX(JJ,1)*SINA | |
27984 | BBB(JJ)=FAKT1*UMIX(JJ,2)*SINA | |
27985 | 100 CONTINUE | |
27986 | AMST(1)=PMAS(PYCOMP(KSUSY1+6),1) | |
27987 | AMST(2)=PMAS(PYCOMP(KSUSY2+6),1) | |
27988 | AMSB(1)=PMAS(PYCOMP(KSUSY1+5),1) | |
27989 | AMSB(2)=PMAS(PYCOMP(KSUSY2+5),1) | |
27990 | IFIRST=.FALSE. | |
27991 | ENDIF | |
27992 | AMTOP=PMAS(6,1) | |
27993 | ||
27994 | ULR(1)=XX1(I)*XX1(I)+AAA(I)*AAA(I) | |
27995 | ULR(2)=XX2(I)*XX2(I)+BBB(I)*BBB(I) | |
27996 | VLR(1)=CCC(I)*CCC(I)+EEE(I)*EEE(I) | |
27997 | VLR(2)=DDD(I)*DDD(I)+FFF(I)*FFF(I) | |
27998 | ||
27999 | COS2A=COSA**2-SINA**2 | |
28000 | SIN2A=SINA*COSA*2D0 | |
28001 | COS2C=COSC**2-SINC**2 | |
28002 | SIN2C=SINC*COSC*2D0 | |
28003 | ||
28004 | XMG=XMGLU | |
28005 | XMT=AMTOP | |
28006 | XMB=0D0 | |
28007 | XMR=AMC(I) | |
28008 | XMG2=XMG*XMG | |
28009 | ALPHAW=PYALEM(XMG2) | |
28010 | ALPHAS=PYALPS(XMG2) | |
28011 | XMT2=XMT*XMT | |
28012 | XMB2=XMB*XMB | |
28013 | XMR2=XMR*XMR | |
28014 | XMQ2=XMG2+XMT2+XMB2+XMR2 | |
28015 | XMQ4=XMG*XMT*XMB*XMR | |
28016 | XMQ3=XMG2*XMR2+XMT2*XMB2 | |
28017 | XMGBTR=(XMG2+XMB2)*(XMT2+XMR2) | |
28018 | XMGTBR=(XMG2+XMT2)*(XMB2+XMR2) | |
28019 | ||
28020 | XMST(1)=AMST(1)*AMST(1) | |
28021 | XMST(2)=AMST(1)*AMST(1) | |
28022 | XMST(3)=AMST(2)*AMST(2) | |
28023 | XMST(4)=AMST(2)*AMST(2) | |
28024 | XMSB(1)=AMSB(1)*AMSB(1) | |
28025 | XMSB(2)=AMSB(2)*AMSB(2) | |
28026 | XMSB(3)=AMSB(1)*AMSB(1) | |
28027 | XMSB(4)=AMSB(2)*AMSB(2) | |
28028 | ||
28029 | A(1,1)=-COSA*SINC*CCC(I)*AAA(I)-SINA*COSC*EEE(I)*XX1(I) | |
28030 | A(1,2)=XMG*XMB*(COSA*COSC*CCC(I)*AAA(I)+SINA*SINC*EEE(I)*XX1(I)) | |
28031 | A(1,3)=-XMG*XMR*(COSA*COSC*CCC(I)*XX1(I)+SINA*SINC*EEE(I)*AAA(I)) | |
28032 | A(1,4)=XMB*XMR*(COSA*SINC*CCC(I)*XX1(I)+SINA*COSC*EEE(I)*AAA(I)) | |
28033 | A(1,5)=XMG*XMT*(COSA*COSC*EEE(I)*XX1(I)+SINA*SINC*CCC(I)*AAA(I)) | |
28034 | A(1,6)=-XMT*XMB*(COSA*SINC*EEE(I)*XX1(I)+SINA*COSC*CCC(I)*AAA(I)) | |
28035 | A(1,7)=XMT*XMR*(COSA*SINC*EEE(I)*AAA(I)+SINA*COSC*CCC(I)*XX1(I)) | |
28036 | A(1,8)=-XMQ4*(COSA*COSC*EEE(I)*AAA(I)+SINA*SINC*CCC(I)*XX1(I)) | |
28037 | ||
28038 | A(2,1)=-COSA*COSC*DDD(I)*AAA(I)-SINA*SINC*FFF(I)*XX1(I) | |
28039 | A(2,2)=-XMG*XMB*(COSA*SINC*DDD(I)*AAA(I)+SINA*COSC*FFF(I)*XX1(I)) | |
28040 | A(2,3)=XMG*XMR*(COSA*SINC*DDD(I)*XX1(I)+SINA*COSC*FFF(I)*AAA(I)) | |
28041 | A(2,4)=XMB*XMR*(COSA*COSC*DDD(I)*XX1(I)+SINA*SINC*FFF(I)*AAA(I)) | |
28042 | A(2,5)=XMG*XMT*(COSA*SINC*FFF(I)*XX1(I)+SINA*COSC*DDD(I)*AAA(I)) | |
28043 | A(2,6)=XMT*XMB*(COSA*COSC*FFF(I)*XX1(I)+SINA*SINC*DDD(I)*AAA(I)) | |
28044 | A(2,7)=-XMT*XMR*(COSA*COSC*FFF(I)*AAA(I)+SINA*SINC*DDD(I)*XX1(I)) | |
28045 | A(2,8)=-XMQ4*(COSA*SINC*FFF(I)*AAA(I)+SINA*COSC*DDD(I)*XX1(I)) | |
28046 | ||
28047 | A(3,1)=-COSA*COSC*EEE(I)*XX2(I)-SINA*SINC*CCC(I)*BBB(I) | |
28048 | A(3,2)=XMG*XMB*(COSA*SINC*EEE(I)*XX2(I)+SINA*COSC*CCC(I)*BBB(I)) | |
28049 | A(3,3)=XMG*XMR*(COSA*SINC*EEE(I)*BBB(I)+SINA*COSC*CCC(I)*XX2(I)) | |
28050 | A(3,4)=-XMB*XMR*(COSA*COSC*EEE(I)*BBB(I)+SINA*SINC*CCC(I)*XX2(I)) | |
28051 | A(3,5)=-XMG*XMT*(COSA*SINC*CCC(I)*BBB(I)+SINA*COSC*EEE(I)*XX2(I)) | |
28052 | A(3,6)=XMT*XMB*(COSA*COSC*CCC(I)*BBB(I)+SINA*SINC*EEE(I)*XX2(I)) | |
28053 | A(3,7)=XMT*XMR*(COSA*COSC*CCC(I)*XX2(I)+SINA*SINC*EEE(I)*BBB(I)) | |
28054 | A(3,8)=-XMQ4*(COSA*SINC*CCC(I)*XX2(I)+SINA*COSC*EEE(I)*BBB(I)) | |
28055 | ||
28056 | A(4,1)=-COSA*SINC*FFF(I)*XX2(I)-SINA*COSC*DDD(I)*BBB(I) | |
28057 | A(4,2)=-XMG*XMB*(COSA*COSC*FFF(I)*XX2(I)+SINA*SINC*DDD(I)*BBB(I)) | |
28058 | A(4,3)=-XMG*XMR*(COSA*COSC*FFF(I)*BBB(I)+SINA*SINC*DDD(I)*XX2(I)) | |
28059 | A(4,4)=-XMB*XMR*(COSA*SINC*FFF(I)*BBB(I)+SINA*COSC*DDD(I)*XX2(I)) | |
28060 | A(4,5)=-XMG*XMT*(COSA*COSC*DDD(I)*BBB(I)+SINA*SINC*FFF(I)*XX2(I)) | |
28061 | A(4,6)=-XMT*XMB*(COSA*SINC*DDD(I)*BBB(I)+SINA*COSC*FFF(I)*XX2(I)) | |
28062 | A(4,7)=-XMT*XMR*(COSA*SINC*DDD(I)*XX2(I)+SINA*COSC*FFF(I)*BBB(I)) | |
28063 | A(4,8)=-XMQ4*(COSA*COSC*DDD(I)*XX2(I)+SINA*SINC*FFF(I)*BBB(I)) | |
28064 | ||
28065 | SMAX=(XMG-ABS(XMR))**2 | |
28066 | SMIN=(XMB+XMT)**2+0.1D0 | |
28067 | ||
28068 | DO 120 LIN=0,NN-1 | |
28069 | SBAR=SMIN+DBLE(LIN)*(SMAX-SMIN)/DBLE(NN) | |
28070 | AM=(XMG2-XMR2)*(XMT2-XMB2)/2D0/SBAR | |
28071 | GRS=SBAR-XMQ2 | |
28072 | W=PYLAMF(SBAR,XMB2,XMT2)*PYLAMF(SBAR,XMG2,XMR2) | |
28073 | W=DSQRT(W)/2D0/SBAR | |
28074 | ANT1=LOG(ABS((GRS/2D0+AM+XMST(1)-W)/(GRS/2D0+AM+XMST(1)+W))) | |
28075 | ANT2=LOG(ABS((GRS/2D0+AM+XMST(3)-W)/(GRS/2D0+AM+XMST(3)+W))) | |
28076 | ANB1=LOG(ABS((GRS/2D0-AM+XMSB(1)-W)/(GRS/2D0-AM+XMSB(1)+W))) | |
28077 | ANB2=LOG(ABS((GRS/2D0-AM+XMSB(2)-W)/(GRS/2D0-AM+XMSB(2)+W))) | |
28078 | SUMME(LIN)=-ULR(1)*W+(ULR(1)*(XMQ2/2D0-XMST(1)-XMG*XMT*SIN2A) | |
28079 | & +2D0*XX1(I)*AAA(I)*XMR*XMB)*ANT1 | |
28080 | & +(ULR(1)/2D0*(XMST(1)*(XMQ2-XMST(1))-XMGTBR | |
28081 | & -2D0*XMG*XMT*SIN2A*(XMST(1)-XMB2-XMR2)) | |
28082 | & +2D0*XX1(I)*AAA(I)*XMR*XMB*(XMST(1)-XMG2-XMT2) | |
28083 | & +4D0*SIN2A*XX1(I)*AAA(I)*XMQ4) | |
28084 | & *(1D0/(GRS/2D0+AM+XMST(1)-W)-1D0/(GRS/2D0+AM+XMST(1)+W)) | |
28085 | SUMME(LIN)=SUMME(LIN)-ULR(2)*W | |
28086 | & +(ULR(2)*(XMQ2/2D0-XMST(3)+XMG*XMT*SIN2A) | |
28087 | & -2D0*XX2(I)*BBB(I)*XMR*XMB)*ANT2 | |
28088 | & +(ULR(2)/2D0*(XMST(3)*(XMQ2-XMST(3))-XMGTBR | |
28089 | & +2D0*XMG*XMT*SIN2A*(XMST(3)-XMB2-XMR2)) | |
28090 | & -2D0*XX2(I)*BBB(I)*XMR*XMB*(XMST(3)-XMG2-XMT2) | |
28091 | & +4D0*SIN2A*XX2(I)*BBB(I)*XMQ4) | |
28092 | & *(1D0/(GRS/2D0+AM+XMST(3)-W)-1D0/(GRS/2D0+AM+XMST(3)+W)) | |
28093 | SUMME(LIN)=SUMME(LIN)-VLR(1)*W | |
28094 | & +(VLR(1)*(XMQ2/2D0-XMSB(1)-XMG*XMB*SIN2C) | |
28095 | & +2D0*CCC(I)*EEE(I)*XMR*XMT)*ANB1 | |
28096 | & +(VLR(1)/2D0*(XMSB(1)*(XMQ2-XMSB(1))-XMGBTR | |
28097 | & -2D0*XMG*XMB*SIN2C*(XMSB(1)-XMT2-XMR2)) | |
28098 | & +2D0*CCC(I)*EEE(I)*XMR*XMT*(XMSB(1)-XMG2-XMB2) | |
28099 | & +4D0*SIN2C*CCC(I)*EEE(I)*XMQ4) | |
28100 | & *(1D0/(GRS/2D0-AM+XMSB(1)-W)-1D0/(GRS/2D0-AM+XMSB(1)+W)) | |
28101 | SUMME(LIN)=SUMME(LIN)-VLR(2)*W | |
28102 | & +(VLR(2)*(XMQ2/2D0-XMSB(2)+XMG*XMB*SIN2C) | |
28103 | & -2D0*DDD(I)*FFF(I)*XMR*XMT)*ANB2 | |
28104 | & +(VLR(2)/2D0*(XMSB(2)*(XMQ2-XMSB(2))-XMGBTR | |
28105 | & +2D0*XMG*XMB*SIN2C*(XMSB(2)-XMT2-XMR2)) | |
28106 | & -2D0*DDD(I)*FFF(I)*XMR*XMT*(XMSB(2)-XMG2-XMB2) | |
28107 | & +4D0*SIN2C*DDD(I)*FFF(I)*XMQ4) | |
28108 | & *(1D0/(GRS/2D0-AM+XMSB(2)-W)-1D0/(GRS/2D0-AM+XMSB(2)+W)) | |
28109 | SUMME(LIN)=SUMME(LIN)+2D0*XMG*XMT*COS2A/(XMST(3)-XMST(1)) | |
28110 | & *((AAA(I)*BBB(I)-XX1(I)*XX2(I)) | |
28111 | & *((XMST(3)-XMB2-XMR2)*ANT2-(XMST(1)-XMB2-XMR2)*ANT1) | |
28112 | & +2D0*(AAA(I)*XX2(I)-XX1(I)*BBB(I))*XMB*XMR*(ANT2-ANT1)) | |
28113 | SUMME(LIN)=SUMME(LIN)+2D0*XMG*XMB*COS2C/(XMSB(2)-XMSB(1)) | |
28114 | & *((EEE(I)*FFF(I)-CCC(I)*DDD(I)) | |
28115 | & *((XMSB(2)-XMT2-XMR2)*ANB2-(XMSB(1)-XMT2-XMR2)*ANB1) | |
28116 | & +2D0*(EEE(I)*DDD(I)-CCC(I)*FFF(I))*XMT*XMR*(ANB2-ANB1)) | |
28117 | DO 110 J=1,4 | |
28118 | SUMME(LIN)=SUMME(LIN)-2D0*A(J,1)*W | |
28119 | & +((-A(J,1)*(XMSB(J)*(GRS+XMSB(J))+XMQ3) | |
28120 | & +A(J,2)*(XMSB(J)-XMT2-XMR2)+A(J,3)*(SBAR-XMB2-XMT2) | |
28121 | & +A(J,4)*(XMSB(J)+SBAR-XMB2-XMR2) | |
28122 | & -A(J,5)*(XMSB(J)+SBAR-XMG2-XMT2)+A(J,6)*(XMG2+XMR2-SBAR) | |
28123 | & -A(J,7)*(XMSB(J)-XMG2-XMB2)+2D0*A(J,8)) | |
28124 | & *LOG(ABS((GRS/2D0+XMSB(J)-AM-W)/(GRS/2D0+XMSB(J)-AM+W))) | |
28125 | & -(A(J,1)*(XMST(J)*(GRS+XMST(J))+XMQ3) | |
28126 | & +A(J,2)*(XMST(J)+SBAR-XMG2-XMB2)-A(J,3)*(SBAR-XMB2-XMT2) | |
28127 | & +A(J,4)*(XMST(J)-XMG2-XMT2)-A(J,5)*(XMST(J)-XMR2-XMB2) | |
28128 | & -A(J,6)*(XMG2+XMR2-SBAR) | |
28129 | & -A(J,7)*(XMST(J)+SBAR-XMT2-XMR2)-2D0*A(J,8)) | |
28130 | & *LOG(ABS((GRS/2D0+XMST(J)+AM-W)/(GRS/2D0+XMST(J)+AM+W)))) | |
28131 | & /(GRS+XMSB(J)+XMST(J)) | |
28132 | 110 CONTINUE | |
28133 | 120 CONTINUE | |
28134 | SUMME(NN)=0D0 | |
28135 | GAM= ALPHAW * ALPHAS * PYSIMP(SUMME,SMIN,SMAX,NN) | |
28136 | &/ (16D0 * PARU(1) * PARU(102) * XMGLU**3) | |
28137 | ||
28138 | RETURN | |
28139 | END | |
28140 | ||
28141 | C********************************************************************* | |
28142 | ||
28143 | C...PYNJDC | |
28144 | C...Calculates decay widths for the neutralinos (admixtures of | |
28145 | C...Bino, W3-ino, Higgs1-ino, Higgs2-ino) | |
28146 | ||
28147 | C...Input: KCIN = KF code for particle | |
28148 | C...Output: XLAM = widths | |
28149 | C... IDLAM = KF codes for decay particles | |
28150 | C... IKNT = number of decay channels defined | |
28151 | C...AUTHOR: STEPHEN MRENNA | |
28152 | C...Last change: | |
28153 | C...10-15-95: force decay chi^0_2 -> chi^0_1 + gamma | |
28154 | C...when CHIGAMMA .NE. 0 | |
28155 | C...10 FEB 96: Calculate this decay for small tan(beta) | |
28156 | ||
28157 | SUBROUTINE PYNJDC(KFIN,XLAM,IDLAM,IKNT) | |
28158 | ||
28159 | C...Double precision and integer declarations. | |
28160 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
28161 | INTEGER PYK,PYCHGE,PYCOMP | |
28162 | C...Parameter statement to help give large particle numbers. | |
28163 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
28164 | C...Commonblocks. | |
28165 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
28166 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
28167 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
28168 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
28169 | &SFMIX(16,4) | |
28170 | COMMON/PYINTS/XXM(20) | |
28171 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/,/PYINTS/ | |
28172 | ||
28173 | C...Local variables. | |
28174 | INTEGER KFIN,KCIN | |
28175 | DOUBLE PRECISION XMI,XMJ,XMF,XMSF1,XMSF2,XMW,XMW2, | |
28176 | &XMZ,XMZ2,AXMJ,AXMI | |
28177 | DOUBLE PRECISION XMFP,XMF1,XMF2,XMSL,XMG,XMK | |
28178 | DOUBLE PRECISION S12MIN,S12MAX | |
28179 | DOUBLE PRECISION XMI2,XMI3,XMJ2,XMH,XMH2,XMHP,XMHP2,XMA2,XMB2 | |
28180 | DOUBLE PRECISION PYLAMF,XL,QIJ,RIJ | |
28181 | DOUBLE PRECISION TANW,XW,AEM,C1,AS,EI,T3 | |
28182 | DOUBLE PRECISION PYX2XH,PYX2XG | |
28183 | DOUBLE PRECISION XLAM(0:200) | |
28184 | INTEGER IDLAM(200,3) | |
28185 | INTEGER LKNT,IX,IH,J,IJ,I,IKNT,FID | |
28186 | INTEGER ITH(3),KF1,KF2 | |
28187 | INTEGER ITHC | |
28188 | DOUBLE PRECISION ETAH(3),CH(3),DH(3),EH(3) | |
28189 | DOUBLE PRECISION SR2 | |
28190 | DOUBLE PRECISION CBETA,SBETA,GR,GL,F12K,F21K | |
28191 | DOUBLE PRECISION GAMCON,XMT1,XMT2 | |
28192 | DOUBLE PRECISION PYALEM,PI,PYALPS | |
28193 | DOUBLE PRECISION AL,BL,AR,BR,ALP,ARP,BLP,BRP | |
28194 | DOUBLE PRECISION RAT1,RAT2 | |
28195 | DOUBLE PRECISION T3T,CA,CB,FCOL | |
28196 | DOUBLE PRECISION ALFA,BETA,TANB | |
28197 | DOUBLE PRECISION PYGAUS,PYXXGA | |
28198 | EXTERNAL PYXXW5,PYGAUS,PYXXZ5 | |
28199 | DOUBLE PRECISION PREC | |
28200 | INTEGER KFNCHI(4),KFCCHI(2) | |
28201 | DATA ETAH/1D0,1D0,-1D0/ | |
28202 | DATA ITH/25,35,36/ | |
28203 | DATA ITHC/37/ | |
28204 | DATA PREC/1D-2/ | |
28205 | DATA PI/3.141592654D0/ | |
28206 | DATA SR2/1.4142136D0/ | |
28207 | DATA KFNCHI/1000022,1000023,1000025,1000035/ | |
28208 | DATA KFCCHI/1000024,1000037/ | |
28209 | ||
28210 | C...COUNT THE NUMBER OF DECAY MODES | |
28211 | LKNT=0 | |
28212 | ||
28213 | XMW=PMAS(24,1) | |
28214 | XMW2=XMW**2 | |
28215 | XMZ=PMAS(23,1) | |
28216 | XMZ2=XMZ**2 | |
28217 | XW=1D0-XMW2/XMZ2 | |
28218 | TANW = SQRT(XW/(1D0-XW)) | |
28219 | ||
28220 | C...IX IS 1 - 4 DEPENDING ON SEQUENCE NUMBER | |
28221 | KCIN=PYCOMP(KFIN) | |
28222 | IX=1 | |
28223 | IF(KFIN.EQ.KFNCHI(2)) IX=2 | |
28224 | IF(KFIN.EQ.KFNCHI(3)) IX=3 | |
28225 | IF(KFIN.EQ.KFNCHI(4)) IX=4 | |
28226 | ||
28227 | XMI=SMZ(IX) | |
28228 | XMI2=XMI**2 | |
28229 | AXMI=ABS(XMI) | |
28230 | AEM=PYALEM(XMI2) | |
28231 | AS =PYALPS(XMI2) | |
28232 | C1=AEM/XW | |
28233 | XMI3=ABS(XMI**3) | |
28234 | ||
28235 | TANB=RMSS(5) | |
28236 | BETA=ATAN(TANB) | |
28237 | ALFA=RMSS(18) | |
28238 | CBETA=COS(BETA) | |
28239 | SBETA=TANB*CBETA | |
28240 | CALFA=COS(ALFA) | |
28241 | SALFA=SIN(ALFA) | |
28242 | ||
28243 | C...CHECK ALL 2-BODY DECAYS TO GAUGE AND HIGGS BOSONS | |
28244 | IF(IX.EQ.1.AND.IMSS(11).EQ.0) THEN | |
28245 | RETURN | |
28246 | ENDIF | |
28247 | ||
28248 | C...FORCE CHI0_2 -> CHI0_1 + GAMMA | |
28249 | IF(IX.EQ.2 .AND. IMSS(10).NE.0 ) THEN | |
28250 | XMJ=SMZ(1) | |
28251 | AXMJ=ABS(XMJ) | |
28252 | LKNT=LKNT+1 | |
28253 | GAMCON=AEM**3/8D0/PI/XMW2/XW | |
28254 | XMT1=(PMAS(PYCOMP(KSUSY1+6),1)/PMAS(6,1))**2 | |
28255 | XMT2=(PMAS(PYCOMP(KSUSY2+6),1)/PMAS(6,1))**2 | |
28256 | XLAM(LKNT)=PYXXGA(GAMCON,AXMI,AXMJ,XMT1,XMT2) | |
28257 | IDLAM(LKNT,1)=KSUSY1+22 | |
28258 | IDLAM(LKNT,2)=22 | |
28259 | IDLAM(LKNT,3)=0 | |
28260 | WRITE(MSTU(11),*) 'FORCED N2 -> N1 + GAMMA ',XLAM(LKNT) | |
28261 | GOTO 290 | |
28262 | ENDIF | |
28263 | ||
28264 | C...GRAVITINO DECAY MODES | |
28265 | ||
28266 | IF(IMSS(11).EQ.1) THEN | |
28267 | XMP=RMSS(28) | |
28268 | IDG=39+KSUSY1 | |
28269 | XMGR=PMAS(PYCOMP(IDG),1) | |
28270 | SINW=SQRT(XW) | |
28271 | COSW=SQRT(1D0-XW) | |
28272 | XFAC=(XMI2/(XMP*XMGR))**2*AXMI/48D0/PI | |
28273 | IF(AXMI.GT.XMGR+PMAS(22,1)) THEN | |
28274 | LKNT=LKNT+1 | |
28275 | IDLAM(LKNT,1)=IDG | |
28276 | IDLAM(LKNT,2)=22 | |
28277 | IDLAM(LKNT,3)=0 | |
28278 | XLAM(LKNT)=XFAC*(ZMIX(IX,1)*COSW+ZMIX(IX,2)*SINW)**2 | |
28279 | ENDIF | |
28280 | IF(AXMI.GT.XMGR+XMZ) THEN | |
28281 | LKNT=LKNT+1 | |
28282 | IDLAM(LKNT,1)=IDG | |
28283 | IDLAM(LKNT,2)=23 | |
28284 | IDLAM(LKNT,3)=0 | |
28285 | XLAM(LKNT)=XFAC*((ZMIX(IX,1)*SINW-ZMIX(IX,2)*COSW)**2 + | |
28286 | $ .5D0*(ZMIX(IX,3)*CBETA-ZMIX(IX,4)*SBETA)**2)*(1D0-XMZ2/XMI2)**4 | |
28287 | ENDIF | |
28288 | IF(AXMI.GT.XMGR+PMAS(25,1)) THEN | |
28289 | LKNT=LKNT+1 | |
28290 | IDLAM(LKNT,1)=IDG | |
28291 | IDLAM(LKNT,2)=25 | |
28292 | IDLAM(LKNT,3)=0 | |
28293 | XLAM(LKNT)=XFAC*((ZMIX(IX,3)*SALFA-ZMIX(IX,4)*CALFA)**2)* | |
28294 | $ .5D0*(1D0-PMAS(25,1)**2/XMI2)**4 | |
28295 | ENDIF | |
28296 | IF(AXMI.GT.XMGR+PMAS(35,1)) THEN | |
28297 | LKNT=LKNT+1 | |
28298 | IDLAM(LKNT,1)=IDG | |
28299 | IDLAM(LKNT,2)=35 | |
28300 | IDLAM(LKNT,3)=0 | |
28301 | XLAM(LKNT)=XFAC*((ZMIX(IX,3)*CALFA+ZMIX(IX,4)*SALFA)**2)* | |
28302 | $ .5D0*(1D0-PMAS(35,1)**2/XMI2)**4 | |
28303 | ENDIF | |
28304 | IF(AXMI.GT.XMGR+PMAS(36,1)) THEN | |
28305 | LKNT=LKNT+1 | |
28306 | IDLAM(LKNT,1)=IDG | |
28307 | IDLAM(LKNT,2)=36 | |
28308 | IDLAM(LKNT,3)=0 | |
28309 | XLAM(LKNT)=XFAC*((ZMIX(IX,3)*SBETA+ZMIX(IX,4)*CBETA)**2)* | |
28310 | $ .5D0*(1D0-PMAS(36,1)**2/XMI2)**4 | |
28311 | ENDIF | |
28312 | ENDIF | |
28313 | ||
28314 | DO 180 IJ=1,IX-1 | |
28315 | XMJ=SMZ(IJ) | |
28316 | AXMJ=ABS(XMJ) | |
28317 | XMJ2=XMJ**2 | |
28318 | ||
28319 | C...CHI0_I -> CHI0_J + GAMMA | |
28320 | IF(AXMI.GE.AXMJ.AND.SBETA/CBETA.LE.2D0) THEN | |
28321 | RAT1=ZMIX(IJ,1)**2+ZMIX(IJ,2)**2 | |
28322 | RAT1=RAT1/( 1D-6+ZMIX(IX,3)**2+ZMIX(IX,4)**2 ) | |
28323 | RAT2=ZMIX(IX,1)**2+ZMIX(IX,2)**2 | |
28324 | RAT2=RAT2/( 1D-6+ZMIX(IJ,3)**2+ZMIX(IJ,4)**2 ) | |
28325 | IF((RAT1.GT. 0.90D0 .AND. RAT1.LT. 1.10D0) .OR. | |
28326 | & (RAT2.GT. 0.90D0 .AND. RAT2.LT. 1.10D0)) THEN | |
28327 | LKNT=LKNT+1 | |
28328 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28329 | IDLAM(LKNT,2)=22 | |
28330 | IDLAM(LKNT,3)=0 | |
28331 | GAMCON=AEM**3/8D0/PI/XMW2/XW | |
28332 | XMT1=(PMAS(PYCOMP(KSUSY1+6),1)/PMAS(6,1))**2 | |
28333 | XMT2=(PMAS(PYCOMP(KSUSY2+6),1)/PMAS(6,1))**2 | |
28334 | XLAM(LKNT)=PYXXGA(GAMCON,AXMI,AXMJ,XMT1,XMT2) | |
28335 | ENDIF | |
28336 | ENDIF | |
28337 | ||
28338 | C...CHI0_I -> CHI0_J + Z0 | |
28339 | IF(AXMI.GE.AXMJ+XMZ) THEN | |
28340 | LKNT=LKNT+1 | |
28341 | GL=-0.5D0*(ZMIX(IX,3)*ZMIX(IJ,3)-ZMIX(IX,4)*ZMIX(IJ,4)) | |
28342 | GR=-GL | |
28343 | XLAM(LKNT)=PYX2XG(C1/XMW2,XMI,XMJ,XMZ,GL,GR) | |
28344 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28345 | IDLAM(LKNT,2)=23 | |
28346 | IDLAM(LKNT,3)=0 | |
28347 | ELSEIF(AXMI.GE.AXMJ) THEN | |
28348 | FID=11 | |
28349 | EI=KCHG(FID,1)/3D0 | |
28350 | T3=-0.5D0 | |
28351 | XXM(1)=0D0 | |
28352 | XXM(2)=XMJ | |
28353 | XXM(3)=0D0 | |
28354 | XXM(4)=XMI | |
28355 | XXM(5)=PMAS(PYCOMP(KSUSY1+11),1) | |
28356 | XXM(6)=PMAS(PYCOMP(KSUSY2+11),1) | |
28357 | XXM(7)=XMZ | |
28358 | XXM(8)=PMAS(23,2) | |
28359 | XXM(9)=-0.5D0*(ZMIX(IX,3)*ZMIX(IJ,3)-ZMIX(IX,4)*ZMIX(IJ,4)) | |
28360 | XXM(10)=-XXM(9) | |
28361 | XXM(11)=(T3-EI*XW)/(1D0-XW) | |
28362 | XXM(12)=-EI*XW/(1D0-XW) | |
28363 | XXM(13)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1)) | |
28364 | XXM(14)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1)) | |
28365 | XXM(15)=SR2*TANW*(EI*ZMIX(IX,1)) | |
28366 | XXM(16)=SR2*TANW*(EI*ZMIX(IJ,1)) | |
28367 | S12MIN=0D0 | |
28368 | S12MAX=(AXMI-AXMJ)**2 | |
28369 | ||
28370 | C...CHARGED LEPTONS | |
28371 | IF( XXM(5).LT.AXMI ) THEN | |
28372 | XXM(5)=1D6 | |
28373 | ENDIF | |
28374 | IF(XXM(6).LT.AXMI ) THEN | |
28375 | XXM(6)=1D6 | |
28376 | ENDIF | |
28377 | IF(AXMI.GE.AXMJ+2D0*PMAS(11,1)) THEN | |
28378 | LKNT=LKNT+1 | |
28379 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28380 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28381 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28382 | IDLAM(LKNT,2)=11 | |
28383 | IDLAM(LKNT,3)=-11 | |
28384 | IF(AXMI.GE.AXMJ+2D0*PMAS(13,1)) THEN | |
28385 | LKNT=LKNT+1 | |
28386 | XLAM(LKNT)=XLAM(LKNT-1) | |
28387 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28388 | IDLAM(LKNT,2)=13 | |
28389 | IDLAM(LKNT,3)=-13 | |
28390 | ENDIF | |
28391 | ENDIF | |
28392 | 100 CONTINUE | |
28393 | IF(ABS(SFMIX(15,1)).GT.ABS(SFMIX(15,2))) THEN | |
28394 | XXM(5)=PMAS(PYCOMP(KSUSY1+15),1) | |
28395 | XXM(6)=PMAS(PYCOMP(KSUSY2+15),1) | |
28396 | ELSE | |
28397 | XXM(6)=PMAS(PYCOMP(KSUSY1+15),1) | |
28398 | XXM(5)=PMAS(PYCOMP(KSUSY2+15),1) | |
28399 | ENDIF | |
28400 | IF( XXM(5).LT.AXMI ) THEN | |
28401 | XXM(5)=1D6 | |
28402 | ENDIF | |
28403 | IF(XXM(6).LT.AXMI ) THEN | |
28404 | XXM(6)=1D6 | |
28405 | ENDIF | |
28406 | ||
28407 | IF(AXMI.GE.AXMJ+2D0*PMAS(15,1)) THEN | |
28408 | LKNT=LKNT+1 | |
28409 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28410 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28411 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28412 | IDLAM(LKNT,2)=15 | |
28413 | IDLAM(LKNT,3)=-15 | |
28414 | ENDIF | |
28415 | ||
28416 | C...NEUTRINOS | |
28417 | 110 CONTINUE | |
28418 | FID=12 | |
28419 | EI=KCHG(FID,1)/3D0 | |
28420 | T3=0.5D0 | |
28421 | XXM(5)=PMAS(PYCOMP(KSUSY1+12),1) | |
28422 | XXM(6)=1D6 | |
28423 | XXM(11)=(T3-EI*XW)/(1D0-XW) | |
28424 | XXM(12)=-EI*XW/(1D0-XW) | |
28425 | XXM(13)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1)) | |
28426 | XXM(14)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1)) | |
28427 | XXM(15)=SR2*TANW*(EI*ZMIX(IX,1)) | |
28428 | XXM(16)=SR2*TANW*(EI*ZMIX(IJ,1)) | |
28429 | ||
28430 | IF( XXM(5).LT.AXMI ) THEN | |
28431 | XXM(5)=1D6 | |
28432 | ENDIF | |
28433 | ||
28434 | LKNT=LKNT+1 | |
28435 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28436 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28437 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28438 | IDLAM(LKNT,2)=12 | |
28439 | IDLAM(LKNT,3)=-12 | |
28440 | LKNT=LKNT+1 | |
28441 | XLAM(LKNT)=XLAM(LKNT-1) | |
28442 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28443 | IDLAM(LKNT,2)=14 | |
28444 | IDLAM(LKNT,3)=-14 | |
28445 | 120 CONTINUE | |
28446 | XXM(5)=PMAS(PYCOMP(KSUSY1+16),1) | |
28447 | IF( XXM(5).LT.AXMI ) THEN | |
28448 | XXM(5)=1D6 | |
28449 | ENDIF | |
28450 | LKNT=LKNT+1 | |
28451 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28452 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28453 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28454 | IDLAM(LKNT,2)=16 | |
28455 | IDLAM(LKNT,3)=-16 | |
28456 | ||
28457 | C...D-TYPE QUARKS | |
28458 | 130 CONTINUE | |
28459 | XXM(5)=PMAS(PYCOMP(KSUSY1+1),1) | |
28460 | XXM(6)=PMAS(PYCOMP(KSUSY2+1),1) | |
28461 | FID=1 | |
28462 | EI=KCHG(FID,1)/3D0 | |
28463 | T3=-0.5D0 | |
28464 | ||
28465 | XXM(11)=(T3-EI*XW)/(1D0-XW) | |
28466 | XXM(12)=-EI*XW/(1D0-XW) | |
28467 | XXM(13)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1)) | |
28468 | XXM(14)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1)) | |
28469 | XXM(15)=SR2*TANW*(EI*ZMIX(IX,1)) | |
28470 | XXM(16)=SR2*TANW*(EI*ZMIX(IJ,1)) | |
28471 | ||
28472 | IF( XXM(5).LT.AXMI .AND. XXM(6).LT.AXMI ) GOTO 140 | |
28473 | IF( XXM(5).LT.AXMI ) THEN | |
28474 | XXM(5)=1D6 | |
28475 | ELSEIF( XXM(6).LT.AXMI ) THEN | |
28476 | XXM(6)=1D6 | |
28477 | ENDIF | |
28478 | IF(AXMI.GE.AXMJ+2D0*PMAS(1,1)) THEN | |
28479 | LKNT=LKNT+1 | |
28480 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28481 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3)*3D0 | |
28482 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28483 | IDLAM(LKNT,2)=1 | |
28484 | IDLAM(LKNT,3)=-1 | |
28485 | IF(AXMI.GE.AXMJ+2D0*PMAS(3,1)) THEN | |
28486 | LKNT=LKNT+1 | |
28487 | XLAM(LKNT)=XLAM(LKNT-1) | |
28488 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28489 | IDLAM(LKNT,2)=3 | |
28490 | IDLAM(LKNT,3)=-3 | |
28491 | ENDIF | |
28492 | ENDIF | |
28493 | 140 CONTINUE | |
28494 | IF(ABS(SFMIX(5,1)).GT.ABS(SFMIX(5,2))) THEN | |
28495 | XXM(5)=PMAS(PYCOMP(KSUSY1+5),1) | |
28496 | XXM(6)=PMAS(PYCOMP(KSUSY2+5),1) | |
28497 | ELSE | |
28498 | XXM(6)=PMAS(PYCOMP(KSUSY1+5),1) | |
28499 | XXM(5)=PMAS(PYCOMP(KSUSY2+5),1) | |
28500 | ENDIF | |
28501 | IF( XXM(5).LT.AXMI .AND. XXM(6).LT.AXMI ) GOTO 150 | |
28502 | IF(XXM(5).LT.AXMI) THEN | |
28503 | XXM(5)=1D6 | |
28504 | ELSEIF(XXM(6).LT.AXMI) THEN | |
28505 | XXM(6)=1D6 | |
28506 | ENDIF | |
28507 | IF(AXMI.GE.AXMJ+2D0*PMAS(5,1)) THEN | |
28508 | LKNT=LKNT+1 | |
28509 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28510 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3)*3D0 | |
28511 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28512 | IDLAM(LKNT,2)=5 | |
28513 | IDLAM(LKNT,3)=-5 | |
28514 | ENDIF | |
28515 | ||
28516 | C...U-TYPE QUARKS | |
28517 | 150 CONTINUE | |
28518 | XXM(5)=PMAS(PYCOMP(KSUSY1+2),1) | |
28519 | XXM(6)=PMAS(PYCOMP(KSUSY2+2),1) | |
28520 | FID=2 | |
28521 | EI=KCHG(FID,1)/3D0 | |
28522 | T3=0.5D0 | |
28523 | ||
28524 | XXM(11)=(T3-EI*XW)/(1D0-XW) | |
28525 | XXM(12)=-EI*XW/(1D0-XW) | |
28526 | XXM(13)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1)) | |
28527 | XXM(14)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1)) | |
28528 | XXM(15)=SR2*TANW*(EI*ZMIX(IX,1)) | |
28529 | XXM(16)=SR2*TANW*(EI*ZMIX(IJ,1)) | |
28530 | ||
28531 | IF( XXM(5).LT.AXMI .AND. XXM(6).LT.AXMI ) GOTO 160 | |
28532 | IF(XXM(5).LT.AXMI) THEN | |
28533 | XXM(5)=1D6 | |
28534 | ELSEIF(XXM(6).LT.AXMI) THEN | |
28535 | XXM(6)=1D6 | |
28536 | ENDIF | |
28537 | IF(AXMI.GE.AXMJ+2D0*PMAS(2,1)) THEN | |
28538 | LKNT=LKNT+1 | |
28539 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28540 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3)*3D0 | |
28541 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28542 | IDLAM(LKNT,2)=2 | |
28543 | IDLAM(LKNT,3)=-2 | |
28544 | IF(AXMI.GE.AXMJ+2D0*PMAS(4,1)) THEN | |
28545 | LKNT=LKNT+1 | |
28546 | XLAM(LKNT)=XLAM(LKNT-1) | |
28547 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28548 | IDLAM(LKNT,2)=4 | |
28549 | IDLAM(LKNT,3)=-4 | |
28550 | ENDIF | |
28551 | ENDIF | |
28552 | 160 CONTINUE | |
28553 | ENDIF | |
28554 | ||
28555 | C...CHI0_I -> CHI0_J + H0_K | |
28556 | EH(1)=SIN(ALFA) | |
28557 | EH(2)=COS(ALFA) | |
28558 | EH(3)=-SIN(BETA) | |
28559 | DH(1)=COS(ALFA) | |
28560 | DH(2)=-SIN(ALFA) | |
28561 | DH(3)=COS(BETA) | |
28562 | ||
28563 | QIJ=ZMIX(IX,3)*ZMIX(IJ,2)+ZMIX(IJ,3)*ZMIX(IX,2)- | |
28564 | & TANW*(ZMIX(IX,3)*ZMIX(IJ,1)+ZMIX(IJ,3)*ZMIX(IX,1)) | |
28565 | RIJ=ZMIX(IX,4)*ZMIX(IJ,2)+ZMIX(IJ,4)*ZMIX(IX,2)- | |
28566 | & TANW*(ZMIX(IX,4)*ZMIX(IJ,1)+ZMIX(IJ,4)*ZMIX(IX,1)) | |
28567 | ||
28568 | DO 170 IH=1,3 | |
28569 | XMH=PMAS(ITH(IH),1) | |
28570 | XMH2=XMH**2 | |
28571 | IF(AXMI.GE.AXMJ+XMH) THEN | |
28572 | LKNT=LKNT+1 | |
28573 | XL=PYLAMF(XMI2,XMJ2,XMH2) | |
28574 | F21K=0.5D0*(QIJ*EH(IH)+RIJ*DH(IH)) | |
28575 | F12K=F21K | |
28576 | C...SIGN OF MASSES I,J | |
28577 | XMK=XMJ | |
28578 | IF(IH.EQ.3) XMK=-XMK | |
28579 | XLAM(LKNT)=PYX2XH(C1,XMI,XMK,XMH,F12K,F21K) | |
28580 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
28581 | IDLAM(LKNT,2)=ITH(IH) | |
28582 | IDLAM(LKNT,3)=0 | |
28583 | ENDIF | |
28584 | 170 CONTINUE | |
28585 | 180 CONTINUE | |
28586 | ||
28587 | C...CHI0_I -> CHI+_J + W- | |
28588 | DO 220 IJ=1,2 | |
28589 | XMJ=SMW(IJ) | |
28590 | AXMJ=ABS(XMJ) | |
28591 | XMJ2=XMJ**2 | |
28592 | IF(AXMI.GE.AXMJ+XMW) THEN | |
28593 | LKNT=LKNT+1 | |
28594 | GL=ZMIX(IX,2)*VMIX(IJ,1)-ZMIX(IX,4)*VMIX(IJ,2)/SR2 | |
28595 | GR=ZMIX(IX,2)*UMIX(IJ,1)+ZMIX(IX,3)*UMIX(IJ,2)/SR2 | |
28596 | XLAM(LKNT)=PYX2XG(C1/XMW2,XMI,XMJ,XMW,GL,GR) | |
28597 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28598 | IDLAM(LKNT,2)=-24 | |
28599 | IDLAM(LKNT,3)=0 | |
28600 | LKNT=LKNT+1 | |
28601 | XLAM(LKNT)=XLAM(LKNT-1) | |
28602 | IDLAM(LKNT,1)=-KFCCHI(IJ) | |
28603 | IDLAM(LKNT,2)=24 | |
28604 | IDLAM(LKNT,3)=0 | |
28605 | ELSEIF(AXMI.GE.AXMJ) THEN | |
28606 | S12MIN=0D0 | |
28607 | S12MAX=(AXMI-AXMJ)**2 | |
28608 | XXM(5)=ZMIX(IX,2)*VMIX(IJ,1)-ZMIX(IX,4)*VMIX(IJ,2)/SR2 | |
28609 | XXM(6)=ZMIX(IX,2)*UMIX(IJ,1)+ZMIX(IX,3)*UMIX(IJ,2)/SR2 | |
28610 | ||
28611 | C...LEPTONS | |
28612 | FID=11 | |
28613 | EI=KCHG(FID,1)/3D0 | |
28614 | T3=-0.5D0 | |
28615 | XXM(7)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1))*UMIX(IJ,1) | |
28616 | FID=12 | |
28617 | EI=KCHG(FID,1)/3D0 | |
28618 | T3=0.5D0 | |
28619 | XXM(8)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1))*VMIX(IJ,1) | |
28620 | ||
28621 | XXM(1)=0D0 | |
28622 | XXM(2)=XMJ | |
28623 | XXM(3)=0D0 | |
28624 | XXM(4)=XMI | |
28625 | XXM(9)=PMAS(24,1) | |
28626 | XXM(10)=PMAS(24,2) | |
28627 | XXM(11)=PMAS(PYCOMP(KSUSY1+11),1) | |
28628 | XXM(12)=PMAS(PYCOMP(KSUSY1+12),1) | |
28629 | IF( XXM(11).LT.AXMI .AND. XXM(12).LT.AXMI ) GOTO 190 | |
28630 | IF(XXM(11).LT.AXMI) THEN | |
28631 | XXM(11)=1D6 | |
28632 | ELSEIF(XXM(12).LT.AXMI) THEN | |
28633 | XXM(12)=1D6 | |
28634 | ENDIF | |
28635 | IF(AXMI.GE.AXMJ+PMAS(11,1)+PMAS(12,1)) THEN | |
28636 | LKNT=LKNT+1 | |
28637 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28638 | & PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
28639 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28640 | IDLAM(LKNT,2)=11 | |
28641 | IDLAM(LKNT,3)=-12 | |
28642 | LKNT=LKNT+1 | |
28643 | XLAM(LKNT)=XLAM(LKNT-1) | |
28644 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28645 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28646 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
28647 | IF(AXMI.GE.AXMJ+PMAS(13,1)+PMAS(14,1)) THEN | |
28648 | LKNT=LKNT+1 | |
28649 | XLAM(LKNT)=XLAM(LKNT-1) | |
28650 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28651 | IDLAM(LKNT,2)=13 | |
28652 | IDLAM(LKNT,3)=-14 | |
28653 | LKNT=LKNT+1 | |
28654 | XLAM(LKNT)=XLAM(LKNT-1) | |
28655 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28656 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28657 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
28658 | ENDIF | |
28659 | ENDIF | |
28660 | 190 CONTINUE | |
28661 | IF(ABS(SFMIX(15,1)).GT.ABS(SFMIX(15,2))) THEN | |
28662 | XXM(11)=PMAS(PYCOMP(KSUSY1+15),1) | |
28663 | XXM(12)=PMAS(PYCOMP(KSUSY1+16),1) | |
28664 | ELSE | |
28665 | XXM(11)=PMAS(PYCOMP(KSUSY2+15),1) | |
28666 | XXM(12)=PMAS(PYCOMP(KSUSY1+16),1) | |
28667 | ENDIF | |
28668 | ||
28669 | IF(XXM(11).LT.AXMI) THEN | |
28670 | XXM(11)=1D6 | |
28671 | ENDIF | |
28672 | IF(XXM(12).LT.AXMI) THEN | |
28673 | XXM(12)=1D6 | |
28674 | ENDIF | |
28675 | IF(AXMI.GE.AXMJ+PMAS(15,1)+PMAS(16,1)) THEN | |
28676 | LKNT=LKNT+1 | |
28677 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
28678 | & PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
28679 | XLAM(LKNT)=XLAM(LKNT-1) | |
28680 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28681 | IDLAM(LKNT,2)=15 | |
28682 | IDLAM(LKNT,3)=-16 | |
28683 | LKNT=LKNT+1 | |
28684 | XLAM(LKNT)=XLAM(LKNT-1) | |
28685 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28686 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28687 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
28688 | ENDIF | |
28689 | ||
28690 | C...NOW, DO THE QUARKS | |
28691 | 200 CONTINUE | |
28692 | FID=1 | |
28693 | EI=KCHG(FID,1)/3D0 | |
28694 | T3=-0.5D0 | |
28695 | XXM(7)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1))*UMIX(IJ,1) | |
28696 | FID=2 | |
28697 | EI=KCHG(FID,1)/3D0 | |
28698 | T3=0.5D0 | |
28699 | XXM(8)=-SR2*(T3*ZMIX(IX,2)-TANW*(T3-EI)*ZMIX(IX,1))*VMIX(IJ,1) | |
28700 | ||
28701 | XXM(11)=PMAS(PYCOMP(KSUSY1+1),1) | |
28702 | XXM(12)=PMAS(PYCOMP(KSUSY1+2),1) | |
28703 | IF( XXM(11).LT.AXMI .AND. XXM(12).LT.AXMI ) GOTO 210 | |
28704 | IF(XXM(11).LT.AXMI) THEN | |
28705 | XXM(11)=1D6 | |
28706 | ELSEIF(XXM(12).LT.AXMI) THEN | |
28707 | XXM(12)=1D6 | |
28708 | ENDIF | |
28709 | IF(AXMI.GE.AXMJ+PMAS(2,1)+PMAS(1,1)) THEN | |
28710 | LKNT=LKNT+1 | |
28711 | XLAM(LKNT)=3D0*C1**2/XMI3/(16D0*PI)* | |
28712 | & PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
28713 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28714 | IDLAM(LKNT,2)=1 | |
28715 | IDLAM(LKNT,3)=-2 | |
28716 | LKNT=LKNT+1 | |
28717 | XLAM(LKNT)=XLAM(LKNT-1) | |
28718 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28719 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28720 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
28721 | IF(AXMI.GE.AXMJ+PMAS(3,1)+PMAS(4,1)) THEN | |
28722 | LKNT=LKNT+1 | |
28723 | XLAM(LKNT)=XLAM(LKNT-1) | |
28724 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28725 | IDLAM(LKNT,2)=3 | |
28726 | IDLAM(LKNT,3)=-4 | |
28727 | LKNT=LKNT+1 | |
28728 | XLAM(LKNT)=XLAM(LKNT-1) | |
28729 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28730 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28731 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
28732 | ENDIF | |
28733 | ENDIF | |
28734 | 210 CONTINUE | |
28735 | ENDIF | |
28736 | 220 CONTINUE | |
28737 | 230 CONTINUE | |
28738 | ||
28739 | C...CHI0_I -> CHI+_I + H- | |
28740 | DO 240 IJ=1,2 | |
28741 | XMJ=SMW(IJ) | |
28742 | AXMJ=ABS(XMJ) | |
28743 | XMJ2=XMJ**2 | |
28744 | XMHP=PMAS(ITHC,1) | |
28745 | XMHP2=XMHP**2 | |
28746 | IF(AXMI.GE.AXMJ+XMHP) THEN | |
28747 | LKNT=LKNT+1 | |
28748 | GL=CBETA*(ZMIX(IX,4)*VMIX(IJ,1)+(ZMIX(IX,2)+ | |
28749 | & ZMIX(IX,1)*TANW)*VMIX(IJ,2)/SR2) | |
28750 | GR=SBETA*(ZMIX(IX,3)*UMIX(IJ,1)-(ZMIX(IX,2)+ | |
28751 | & ZMIX(IX,1)*TANW)*UMIX(IJ,2)/SR2) | |
28752 | XLAM(LKNT)=PYX2XH(C1,XMI,XMJ,XMHP,GL,GR) | |
28753 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
28754 | IDLAM(LKNT,2)=-ITHC | |
28755 | IDLAM(LKNT,3)=0 | |
28756 | LKNT=LKNT+1 | |
28757 | XLAM(LKNT)=XLAM(LKNT-1) | |
28758 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28759 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28760 | IDLAM(LKNT,3)=-IDLAM(LKNT-1,3) | |
28761 | ELSE | |
28762 | ||
28763 | ENDIF | |
28764 | 240 CONTINUE | |
28765 | ||
28766 | C...2-BODY DECAYS TO FERMION SFERMION | |
28767 | DO 250 J=1,16 | |
28768 | IF(J.GE.7.AND.J.LE.10) GOTO 250 | |
28769 | KF1=KSUSY1+J | |
28770 | KF2=KSUSY2+J | |
28771 | XMSF1=PMAS(PYCOMP(KF1),1) | |
28772 | XMSF2=PMAS(PYCOMP(KF2),1) | |
28773 | XMF=PMAS(J,1) | |
28774 | IF(J.LE.6) THEN | |
28775 | FCOL=3D0 | |
28776 | ELSE | |
28777 | FCOL=1D0 | |
28778 | ENDIF | |
28779 | ||
28780 | EI=KCHG(J,1)/3D0 | |
28781 | T3T=SIGN(1D0,EI) | |
28782 | IF(J.EQ.12.OR.J.EQ.14.OR.J.EQ.16) T3T=1D0 | |
28783 | IF(MOD(J,2).EQ.0) THEN | |
28784 | BL=T3T*ZMIX(IX,2)+TANW*ZMIX(IX,1)*(2D0*EI-T3T) | |
28785 | AL=XMF*ZMIX(IX,4)/XMW/SBETA | |
28786 | AR=-2D0*EI*TANW*ZMIX(IX,1) | |
28787 | BR=AL | |
28788 | ELSE | |
28789 | BL=T3T*ZMIX(IX,2)+TANW*ZMIX(IX,1)*(2D0*EI-T3T) | |
28790 | AL=XMF*ZMIX(IX,3)/XMW/CBETA | |
28791 | AR=-2D0*EI*TANW*ZMIX(IX,1) | |
28792 | BR=AL | |
28793 | ENDIF | |
28794 | ||
28795 | C...D~ D_L | |
28796 | IF(AXMI.GE.XMF+XMSF1) THEN | |
28797 | LKNT=LKNT+1 | |
28798 | XMA2=XMSF1**2 | |
28799 | XMB2=XMF**2 | |
28800 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
28801 | CA=AL*SFMIX(J,1)+AR*SFMIX(J,2) | |
28802 | CB=BL*SFMIX(J,1)+BR*SFMIX(J,2) | |
28803 | XLAM(LKNT)=0.5D0*FCOL*C1/8D0/XMI3*SQRT(XL)*( (XMI2+XMB2-XMA2)* | |
28804 | & (CA**2+CB**2)+4D0*CA*CB*XMF*XMI) | |
28805 | IDLAM(LKNT,1)=KF1 | |
28806 | IDLAM(LKNT,2)=-J | |
28807 | IDLAM(LKNT,3)=0 | |
28808 | LKNT=LKNT+1 | |
28809 | XLAM(LKNT)=XLAM(LKNT-1) | |
28810 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28811 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28812 | IDLAM(LKNT,3)=0 | |
28813 | ENDIF | |
28814 | ||
28815 | C...D~ D_R | |
28816 | IF(AXMI.GE.XMF+XMSF2) THEN | |
28817 | LKNT=LKNT+1 | |
28818 | XMA2=XMSF2**2 | |
28819 | XMB2=XMF**2 | |
28820 | CA=AL*SFMIX(J,3)+AR*SFMIX(J,4) | |
28821 | CB=BL*SFMIX(J,3)+BR*SFMIX(J,4) | |
28822 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
28823 | XLAM(LKNT)=0.5D0*FCOL*C1/8D0/XMI3*SQRT(XL)*( (XMI2+XMB2-XMA2)* | |
28824 | & (CA**2+CB**2)+4D0*CA*CB*XMF*XMI) | |
28825 | IDLAM(LKNT,1)=KF2 | |
28826 | IDLAM(LKNT,2)=-J | |
28827 | IDLAM(LKNT,3)=0 | |
28828 | LKNT=LKNT+1 | |
28829 | XLAM(LKNT)=XLAM(LKNT-1) | |
28830 | IDLAM(LKNT,1)=-IDLAM(LKNT-1,1) | |
28831 | IDLAM(LKNT,2)=-IDLAM(LKNT-1,2) | |
28832 | IDLAM(LKNT,3)=0 | |
28833 | ENDIF | |
28834 | 250 CONTINUE | |
28835 | ||
28836 | C...3-BODY DECAY TO Q Q~ GLUINO | |
28837 | XMJ=PMAS(PYCOMP(KSUSY1+21),1) | |
28838 | IF(AXMI.GE.XMJ) THEN | |
28839 | AXMJ=ABS(XMJ) | |
28840 | XXM(1)=0D0 | |
28841 | XXM(2)=XMJ | |
28842 | XXM(3)=0D0 | |
28843 | XXM(4)=XMI | |
28844 | XXM(5)=PMAS(PYCOMP(KSUSY1+1),1) | |
28845 | XXM(6)=PMAS(PYCOMP(KSUSY2+1),1) | |
28846 | XXM(7)=1D6 | |
28847 | XXM(8)=0D0 | |
28848 | XXM(9)=0D0 | |
28849 | XXM(10)=0D0 | |
28850 | S12MIN=0D0 | |
28851 | S12MAX=(AXMI-AXMJ)**2 | |
28852 | C...ALL QUARKS BUT T | |
28853 | XXM(11)=0D0 | |
28854 | XXM(12)=0D0 | |
28855 | XXM(13)=1D0 | |
28856 | XXM(14)=-SR2*(-0.5D0*ZMIX(IX,2)+TANW*ZMIX(IX,1)/6D0) | |
28857 | XXM(15)=1D0 | |
28858 | XXM(16)=SR2*(-TANW*ZMIX(IX,1)/3D0) | |
28859 | IF( XXM(5).LT.AXMI .OR. XXM(6).LT.AXMI ) GOTO 260 | |
28860 | IF(AXMI.GE.AXMJ+2D0*PMAS(1,1)) THEN | |
28861 | LKNT=LKNT+1 | |
28862 | XLAM(LKNT)=4D0*C1*AS/XMI3/(16D0*PI)* | |
28863 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28864 | IDLAM(LKNT,1)=KSUSY1+21 | |
28865 | IDLAM(LKNT,2)=1 | |
28866 | IDLAM(LKNT,3)=-1 | |
28867 | IF(AXMI.GE.AXMJ+2D0*PMAS(3,1)) THEN | |
28868 | LKNT=LKNT+1 | |
28869 | XLAM(LKNT)=XLAM(LKNT-1) | |
28870 | IDLAM(LKNT,1)=KSUSY1+21 | |
28871 | IDLAM(LKNT,2)=3 | |
28872 | IDLAM(LKNT,3)=-3 | |
28873 | ENDIF | |
28874 | ENDIF | |
28875 | 260 CONTINUE | |
28876 | IF(ABS(SFMIX(5,1)).GT.ABS(SFMIX(5,2))) THEN | |
28877 | XXM(5)=PMAS(PYCOMP(KSUSY1+5),1) | |
28878 | XXM(6)=PMAS(PYCOMP(KSUSY2+5),1) | |
28879 | ELSE | |
28880 | XXM(6)=PMAS(PYCOMP(KSUSY1+5),1) | |
28881 | XXM(5)=PMAS(PYCOMP(KSUSY2+5),1) | |
28882 | ENDIF | |
28883 | IF( XXM(5).LT.AXMI .OR. XXM(6).LT.AXMI ) GOTO 270 | |
28884 | IF(AXMI.GE.AXMJ+2D0*PMAS(5,1)) THEN | |
28885 | LKNT=LKNT+1 | |
28886 | XLAM(LKNT)=0.5D0*C1*AS/XMI3/(16D0*PI)* | |
28887 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28888 | IDLAM(LKNT,1)=KSUSY1+21 | |
28889 | IDLAM(LKNT,2)=5 | |
28890 | IDLAM(LKNT,3)=-5 | |
28891 | ENDIF | |
28892 | C...U-TYPE QUARKS | |
28893 | 270 CONTINUE | |
28894 | XXM(5)=PMAS(PYCOMP(KSUSY1+2),1) | |
28895 | XXM(6)=PMAS(PYCOMP(KSUSY2+2),1) | |
28896 | XXM(13)=1D0 | |
28897 | XXM(14)=-SR2*(0.5D0*ZMIX(IX,2)+TANW*ZMIX(IX,1)/6D0) | |
28898 | XXM(15)=1D0 | |
28899 | XXM(16)=SR2*(2D0*TANW*ZMIX(IX,1)/3D0) | |
28900 | IF( XXM(5).LT.AXMI .OR. XXM(6).LT.AXMI ) GOTO 280 | |
28901 | IF(AXMI.GE.AXMJ+2D0*PMAS(2,1)) THEN | |
28902 | LKNT=LKNT+1 | |
28903 | XLAM(LKNT)=0.5D0*C1*AS/XMI3/(16D0*PI)* | |
28904 | & PYGAUS(PYXXZ5,S12MIN,S12MAX,1D-3) | |
28905 | IDLAM(LKNT,1)=KSUSY1+21 | |
28906 | IDLAM(LKNT,2)=2 | |
28907 | IDLAM(LKNT,3)=-2 | |
28908 | IF(AXMI.GE.AXMJ+2D0*PMAS(4,1)) THEN | |
28909 | LKNT=LKNT+1 | |
28910 | XLAM(LKNT)=XLAM(LKNT-1) | |
28911 | IDLAM(LKNT,1)=KSUSY1+21 | |
28912 | IDLAM(LKNT,2)=4 | |
28913 | IDLAM(LKNT,3)=-4 | |
28914 | ENDIF | |
28915 | ENDIF | |
28916 | 280 CONTINUE | |
28917 | ENDIF | |
28918 | ||
28919 | 290 IKNT=LKNT | |
28920 | XLAM(0)=0D0 | |
28921 | DO 300 I=1,IKNT | |
28922 | IF(XLAM(I).LT.0D0) XLAM(I)=0D0 | |
28923 | XLAM(0)=XLAM(0)+XLAM(I) | |
28924 | 300 CONTINUE | |
28925 | IF(XLAM(0).EQ.0D0) XLAM(0)=1D-6 | |
28926 | ||
28927 | RETURN | |
28928 | END | |
28929 | ||
28930 | C********************************************************************* | |
28931 | ||
28932 | C...PYCJDC | |
28933 | C...Calculate decay widths for the charginos (admixtures of | |
28934 | C...charged Wino and charged Higgsino. | |
28935 | ||
28936 | C...Input: KCIN = KF code for particle | |
28937 | C...Output: XLAM = widths | |
28938 | C... IDLAM = KF codes for decay particles | |
28939 | C... IKNT = number of decay channels defined | |
28940 | C...AUTHOR: STEPHEN MRENNA | |
28941 | C...Last change: | |
28942 | C...10-16-95: force decay chi^+_1 -> chi^0_1 e+ nu_e | |
28943 | C...when CHIENU .NE. 0 | |
28944 | ||
28945 | SUBROUTINE PYCJDC(KFIN,XLAM,IDLAM,IKNT) | |
28946 | ||
28947 | C...Double precision and integer declarations. | |
28948 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
28949 | INTEGER PYK,PYCHGE,PYCOMP | |
28950 | C...Parameter statement to help give large particle numbers. | |
28951 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
28952 | C...Commonblocks. | |
28953 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
28954 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
28955 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
28956 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
28957 | &SFMIX(16,4) | |
28958 | COMMON/PYINTS/XXM(20) | |
28959 | SAVE /PYDAT1/,/PYDAT2/,/PYMSSM/,/PYSSMT/,/PYINTS/ | |
28960 | ||
28961 | C...Local variables. | |
28962 | INTEGER KFIN,KCIN | |
28963 | DOUBLE PRECISION XMI,XMJ,XMF,XMSF1,XMSF2,XMW,XMW2, | |
28964 | &XMZ,XMZ2,AXMJ,AXMI | |
28965 | DOUBLE PRECISION XMFP,XMF1,XMF2,XMSL,XMG | |
28966 | DOUBLE PRECISION S12MIN,S12MAX | |
28967 | DOUBLE PRECISION XMI2,XMI3,XMJ2,XMH,XMH2,XMHP,XMHP2,XMA2,XMB2,XMK | |
28968 | DOUBLE PRECISION PYLAMF,XL | |
28969 | DOUBLE PRECISION TANW,XW,AEM,C1,AS,EI,T3,BETA,ALFA | |
28970 | DOUBLE PRECISION PYX2XH,PYX2XG | |
28971 | DOUBLE PRECISION XLAM(0:200) | |
28972 | INTEGER IDLAM(200,3) | |
28973 | INTEGER LKNT,IX,IH,J,IJ,I,IKNT,FID | |
28974 | INTEGER ITH(3) | |
28975 | INTEGER ITHC | |
28976 | DOUBLE PRECISION ETAH(3),CH(3),DH(3),EH(3) | |
28977 | DOUBLE PRECISION SR2 | |
28978 | DOUBLE PRECISION CBETA,SBETA,GR,GL,F12K,F21K,TANB | |
28979 | ||
28980 | DOUBLE PRECISION PYALEM,PI,PYALPS | |
28981 | DOUBLE PRECISION AL,BL,AR,BR,ALP,BLP,ARP,BRP | |
28982 | DOUBLE PRECISION CA,CB,FCOL | |
28983 | INTEGER KF1,KF2,ISF | |
28984 | INTEGER KFNCHI(4),KFCCHI(2) | |
28985 | ||
28986 | DOUBLE PRECISION TEMP | |
28987 | DOUBLE PRECISION PYGAUS | |
28988 | EXTERNAL PYGAUS,PYXXZ5,PYXXW5,PYXXZ2 | |
28989 | DOUBLE PRECISION PREC | |
28990 | DATA ITH/25,35,36/ | |
28991 | DATA ITHC/37/ | |
28992 | DATA ETAH/1D0,1D0,-1D0/ | |
28993 | DATA SR2/1.4142136D0/ | |
28994 | DATA PI/3.141592654D0/ | |
28995 | DATA PREC/1D-2/ | |
28996 | DATA KFNCHI/1000022,1000023,1000025,1000035/ | |
28997 | DATA KFCCHI/1000024,1000037/ | |
28998 | ||
28999 | C...COUNT THE NUMBER OF DECAY MODES | |
29000 | LKNT=0 | |
29001 | XMW=PMAS(24,1) | |
29002 | XMW2=XMW**2 | |
29003 | XMZ=PMAS(23,1) | |
29004 | XMZ2=XMZ**2 | |
29005 | XW=1D0-XMW2/XMZ2 | |
29006 | TANW = SQRT(XW/(1D0-XW)) | |
29007 | ||
29008 | C...1 OR 2 DEPENDING ON CHARGINO TYPE | |
29009 | IX=1 | |
29010 | IF(KFIN.EQ.KFCCHI(2)) IX=2 | |
29011 | KCIN=PYCOMP(KFIN) | |
29012 | ||
29013 | XMI=SMW(IX) | |
29014 | XMI2=XMI**2 | |
29015 | AXMI=ABS(XMI) | |
29016 | AEM=PYALEM(XMI2) | |
29017 | AS =PYALPS(XMI2) | |
29018 | C1=AEM/XW | |
29019 | XMI3=ABS(XMI**3) | |
29020 | TANB=RMSS(5) | |
29021 | BETA=ATAN(TANB) | |
29022 | CBETA=COS(BETA) | |
29023 | SBETA=TANB*CBETA | |
29024 | ALFA=RMSS(18) | |
29025 | ||
29026 | C...GRAVITINO DECAY MODES | |
29027 | ||
29028 | IF(IMSS(11).EQ.1) THEN | |
29029 | XMP=RMSS(28) | |
29030 | IDG=39+KSUSY1 | |
29031 | XMGR=PMAS(PYCOMP(IDG),1) | |
29032 | SINW=SQRT(XW) | |
29033 | COSW=SQRT(1D0-XW) | |
29034 | XFAC=(XMI2/(XMP*XMGR))**2*AXMI/48D0/PI | |
29035 | IF(AXMI.GT.XMGR+XMW) THEN | |
29036 | LKNT=LKNT+1 | |
29037 | IDLAM(LKNT,1)=IDG | |
29038 | IDLAM(LKNT,2)=24 | |
29039 | IDLAM(LKNT,3)=0 | |
29040 | XLAM(LKNT)=XFAC*(.5D0*(VMIX(IX,1)**2+UMIX(IX,1)**2)+ | |
29041 | & .5D0*((VMIX(IX,2)*SBETA)**2+(UMIX(IX,2)*CBETA)**2))* | |
29042 | & (1D0-XMW2/XMI2)**4 | |
29043 | ENDIF | |
29044 | IF(AXMI.GT.XMGR+PMAS(37,1)) THEN | |
29045 | LKNT=LKNT+1 | |
29046 | IDLAM(LKNT,1)=IDG | |
29047 | IDLAM(LKNT,2)=37 | |
29048 | IDLAM(LKNT,3)=0 | |
29049 | XLAM(LKNT)=XFAC*(.5D0*((VMIX(IX,2)*CBETA)**2+ | |
29050 | & (UMIX(IX,2)*SBETA)**2)) | |
29051 | & *(1D0-PMAS(37,1)**2/XMI2)**4 | |
29052 | ENDIF | |
29053 | ENDIF | |
29054 | ||
29055 | C...CHECK ALL 2-BODY DECAYS TO GAUGE AND HIGGS BOSONS | |
29056 | IF(IX.EQ.1) GOTO 150 | |
29057 | XMJ=SMW(1) | |
29058 | AXMJ=ABS(XMJ) | |
29059 | XMJ2=XMJ**2 | |
29060 | ||
29061 | C...CHI_2+ -> CHI_1+ + Z0 | |
29062 | IF(AXMI.GE.AXMJ+XMZ) THEN | |
29063 | LKNT=LKNT+1 | |
29064 | GL=VMIX(2,1)*VMIX(1,1)+0.5D0*VMIX(2,2)*VMIX(1,2) | |
29065 | GR=UMIX(2,1)*UMIX(1,1)+0.5D0*UMIX(2,2)*UMIX(1,2) | |
29066 | XLAM(LKNT)=PYX2XG(C1/XMW2,XMI,XMJ,XMZ,GL,GR) | |
29067 | IDLAM(LKNT,1)=KFCCHI(1) | |
29068 | IDLAM(LKNT,2)=23 | |
29069 | IDLAM(LKNT,3)=0 | |
29070 | ||
29071 | C...CHARGED LEPTONS | |
29072 | ELSEIF(AXMI.GE.AXMJ) THEN | |
29073 | XXM(5)=-(VMIX(2,1)*VMIX(1,1)+0.5D0*VMIX(2,2)*VMIX(1,2)) | |
29074 | XXM(6)=-(UMIX(2,1)*UMIX(1,1)+0.5D0*UMIX(2,2)*UMIX(1,2)) | |
29075 | XXM(9)=XMZ | |
29076 | XXM(10)=PMAS(23,2) | |
29077 | XXM(1)=0D0 | |
29078 | XXM(2)=XMJ | |
29079 | XXM(3)=0D0 | |
29080 | XXM(4)=XMI | |
29081 | S12MIN=0D0 | |
29082 | S12MAX=(AXMJ-AXMI)**2 | |
29083 | XXM(7)= (-0.5D0+XW)/(1D0-XW) | |
29084 | XXM(8)= XW/(1D0-XW) | |
29085 | XXM(11)=PMAS(PYCOMP(KSUSY1+12),1) | |
29086 | XXM(12)=VMIX(2,1)*VMIX(1,1) | |
29087 | IF( XXM(11).LT.AXMI ) THEN | |
29088 | XXM(11)=1D6 | |
29089 | ENDIF | |
29090 | IF(AXMI.GE.AXMJ+2D0*PMAS(11,1)) THEN | |
29091 | LKNT=LKNT+1 | |
29092 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
29093 | & PYGAUS(PYXXZ2,S12MIN,S12MAX,PREC) | |
29094 | IDLAM(LKNT,1)=KFCCHI(1) | |
29095 | IDLAM(LKNT,2)=11 | |
29096 | IDLAM(LKNT,3)=-11 | |
29097 | IF(AXMI.GE.AXMJ+2D0*PMAS(13,1)) THEN | |
29098 | LKNT=LKNT+1 | |
29099 | XLAM(LKNT)=XLAM(LKNT-1) | |
29100 | IDLAM(LKNT,1)=KFCCHI(1) | |
29101 | IDLAM(LKNT,2)=13 | |
29102 | IDLAM(LKNT,3)=-13 | |
29103 | IF(AXMI.GE.AXMJ+2D0*PMAS(15,1)) THEN | |
29104 | LKNT=LKNT+1 | |
29105 | XLAM(LKNT)=XLAM(LKNT-1) | |
29106 | IDLAM(LKNT,1)=KFCCHI(1) | |
29107 | IDLAM(LKNT,2)=15 | |
29108 | IDLAM(LKNT,3)=-15 | |
29109 | ENDIF | |
29110 | ENDIF | |
29111 | ENDIF | |
29112 | ||
29113 | C...NEUTRINOS | |
29114 | 100 CONTINUE | |
29115 | XXM(7)= (0.5D0)/(1D0-XW) | |
29116 | XXM(8)= 0D0 | |
29117 | XXM(11)=PMAS(PYCOMP(KSUSY1+11),1) | |
29118 | XXM(12)=UMIX(2,1)*UMIX(1,1) | |
29119 | IF( XXM(11).LT.AXMI ) THEN | |
29120 | XXM(11)=1D6 | |
29121 | ENDIF | |
29122 | IF(AXMI.GE.AXMJ+2D0*PMAS(12,1)) THEN | |
29123 | LKNT=LKNT+1 | |
29124 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)* | |
29125 | & PYGAUS(PYXXZ2,S12MIN,S12MAX,PREC) | |
29126 | IDLAM(LKNT,1)=KFCCHI(1) | |
29127 | IDLAM(LKNT,2)=12 | |
29128 | IDLAM(LKNT,3)=-12 | |
29129 | LKNT=LKNT+1 | |
29130 | XLAM(LKNT)=XLAM(LKNT-1) | |
29131 | IDLAM(LKNT,1)=KFCCHI(1) | |
29132 | IDLAM(LKNT,2)=14 | |
29133 | IDLAM(LKNT,3)=-14 | |
29134 | LKNT=LKNT+1 | |
29135 | XLAM(LKNT)=XLAM(LKNT-1) | |
29136 | IDLAM(LKNT,1)=KFCCHI(1) | |
29137 | IDLAM(LKNT,2)=16 | |
29138 | IDLAM(LKNT,3)=-16 | |
29139 | ENDIF | |
29140 | ||
29141 | C...D-TYPE QUARKS | |
29142 | 110 CONTINUE | |
29143 | XXM(7)= (-0.5D0+XW/3D0)/(1D0-XW) | |
29144 | XXM(8)= XW/3D0/(1D0-XW) | |
29145 | XXM(11)=PMAS(PYCOMP(KSUSY1+2),1) | |
29146 | XXM(12)=VMIX(2,1)*VMIX(1,1) | |
29147 | IF( XXM(11).LT.AXMI ) GOTO 120 | |
29148 | IF(AXMI.GE.AXMJ+2D0*PMAS(1,1)) THEN | |
29149 | LKNT=LKNT+1 | |
29150 | XLAM(LKNT)=3D0*C1**2/XMI3/(16D0*PI)* | |
29151 | & PYGAUS(PYXXZ2,S12MIN,S12MAX,PREC) | |
29152 | IDLAM(LKNT,1)=KFCCHI(1) | |
29153 | IDLAM(LKNT,2)=1 | |
29154 | IDLAM(LKNT,3)=-1 | |
29155 | IF(AXMI.GE.AXMJ+2D0*PMAS(3,1)) THEN | |
29156 | LKNT=LKNT+1 | |
29157 | XLAM(LKNT)=XLAM(LKNT-1) | |
29158 | IDLAM(LKNT,1)=KFCCHI(1) | |
29159 | IDLAM(LKNT,2)=3 | |
29160 | IDLAM(LKNT,3)=-3 | |
29161 | IF(AXMI.GE.AXMJ+2D0*PMAS(5,1)) THEN | |
29162 | LKNT=LKNT+1 | |
29163 | XLAM(LKNT)=XLAM(LKNT-1) | |
29164 | IDLAM(LKNT,1)=KFCCHI(1) | |
29165 | IDLAM(LKNT,2)=5 | |
29166 | IDLAM(LKNT,3)=-5 | |
29167 | ENDIF | |
29168 | ENDIF | |
29169 | ENDIF | |
29170 | ||
29171 | C...U-TYPE QUARKS | |
29172 | 120 CONTINUE | |
29173 | XXM(7)= (0.5D0-2D0*XW/3D0)/(1D0-XW) | |
29174 | XXM(8)= -2D0*XW/3D0/(1D0-XW) | |
29175 | XXM(11)=PMAS(PYCOMP(KSUSY1+1),1) | |
29176 | XXM(12)=UMIX(2,1)*UMIX(1,1) | |
29177 | IF( XXM(11).LT.AXMI ) GOTO 130 | |
29178 | IF(AXMI.GE.AXMJ+2D0*PMAS(2,1)) THEN | |
29179 | LKNT=LKNT+1 | |
29180 | XLAM(LKNT)=3D0*C1**2/XMI3/(16D0*PI)* | |
29181 | & PYGAUS(PYXXZ2,S12MIN,S12MAX,PREC) | |
29182 | IDLAM(LKNT,1)=KFCCHI(1) | |
29183 | IDLAM(LKNT,2)=2 | |
29184 | IDLAM(LKNT,3)=-2 | |
29185 | IF(AXMI.GE.AXMJ+2D0*PMAS(4,1)) THEN | |
29186 | LKNT=LKNT+1 | |
29187 | XLAM(LKNT)=XLAM(LKNT-1) | |
29188 | IDLAM(LKNT,1)=KFCCHI(1) | |
29189 | IDLAM(LKNT,2)=4 | |
29190 | IDLAM(LKNT,3)=-4 | |
29191 | ENDIF | |
29192 | ENDIF | |
29193 | 130 CONTINUE | |
29194 | ENDIF | |
29195 | ||
29196 | C...CHI_2+ -> CHI_1+ + H0_K | |
29197 | EH(2)=COS(ALFA) | |
29198 | EH(1)=SIN(ALFA) | |
29199 | EH(3)=-SBETA | |
29200 | DH(2)=-SIN(ALFA) | |
29201 | DH(1)=COS(ALFA) | |
29202 | DH(3)=COS(BETA) | |
29203 | DO 140 IH=1,3 | |
29204 | XMH=PMAS(ITH(IH),1) | |
29205 | XMH2=XMH**2 | |
29206 | C...NO 3-BODY OPTION | |
29207 | IF(AXMI.GE.AXMJ+XMH) THEN | |
29208 | LKNT=LKNT+1 | |
29209 | XL=PYLAMF(XMI2,XMJ2,XMH2) | |
29210 | F21K=(VMIX(2,1)*UMIX(1,2)*EH(IH) - | |
29211 | & VMIX(2,2)*UMIX(1,1)*DH(IH))/SR2 | |
29212 | F12K=(VMIX(1,1)*UMIX(2,2)*EH(IH) - | |
29213 | & VMIX(1,2)*UMIX(2,1)*DH(IH))/SR2 | |
29214 | XMK=XMJ*ETAH(IH) | |
29215 | XLAM(LKNT)=PYX2XH(C1,XMI,XMK,XMH,F12K,F21K) | |
29216 | IDLAM(LKNT,1)=KFCCHI(1) | |
29217 | IDLAM(LKNT,2)=ITH(IH) | |
29218 | IDLAM(LKNT,3)=0 | |
29219 | ENDIF | |
29220 | 140 CONTINUE | |
29221 | ||
29222 | C...CHI1 JUMPS TO HERE | |
29223 | 150 CONTINUE | |
29224 | ||
29225 | C...CHI+_I -> CHI0_J + W+ | |
29226 | DO 180 IJ=1,4 | |
29227 | XMJ=SMZ(IJ) | |
29228 | AXMJ=ABS(XMJ) | |
29229 | XMJ2=XMJ**2 | |
29230 | IF(AXMI.GE.AXMJ+XMW) THEN | |
29231 | LKNT=LKNT+1 | |
29232 | GL=ZMIX(IJ,2)*VMIX(IX,1)-ZMIX(IJ,4)*VMIX(IX,2)/SR2 | |
29233 | GR=ZMIX(IJ,2)*UMIX(IX,1)+ZMIX(IJ,3)*UMIX(IX,2)/SR2 | |
29234 | XLAM(LKNT)=PYX2XG(C1/XMW2,XMI,XMJ,XMW,GL,GR) | |
29235 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29236 | IDLAM(LKNT,2)=24 | |
29237 | IDLAM(LKNT,3)=0 | |
29238 | ||
29239 | C...LEPTONS | |
29240 | ELSEIF(AXMI.GE.AXMJ) THEN | |
29241 | XMF1=0D0 | |
29242 | XMF2=0D0 | |
29243 | S12MIN=(XMF1+XMF2)**2 | |
29244 | S12MAX=(AXMJ-AXMI)**2 | |
29245 | XXM(5)=-1D0/SR2*ZMIX(IJ,4)*VMIX(IX,2)+ZMIX(IJ,2)*VMIX(IX,1) | |
29246 | XXM(6)= 1D0/SR2*ZMIX(IJ,3)*UMIX(IX,2)+ZMIX(IJ,2)*UMIX(IX,1) | |
29247 | FID=11 | |
29248 | EI=KCHG(FID,1)/3D0 | |
29249 | T3=-0.5D0 | |
29250 | XXM(7)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1))*UMIX(IX,1) | |
29251 | FID=12 | |
29252 | EI=KCHG(FID,1)/3D0 | |
29253 | T3=0.5D0 | |
29254 | XXM(8)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1))*VMIX(IX,1) | |
29255 | ||
29256 | XXM(4)=XMI | |
29257 | XXM(1)=XMF1 | |
29258 | XXM(2)=XMJ | |
29259 | XXM(3)=XMF2 | |
29260 | XXM(9)=PMAS(24,1) | |
29261 | XXM(10)=PMAS(24,2) | |
29262 | XXM(11)=PMAS(PYCOMP(KSUSY1+11),1) | |
29263 | XXM(12)=PMAS(PYCOMP(KSUSY1+12),1) | |
29264 | ||
29265 | C...1/(2PI)**3*/(32*M**3)*G^4, G^2/(4*PI)= AEM/XW, | |
29266 | C...--> 1/(16PI)/M**3*(AEM/XW)**2 | |
29267 | ||
29268 | IF(XXM(11).LT.AXMI) THEN | |
29269 | XXM(11)=1D6 | |
29270 | ENDIF | |
29271 | IF(XXM(12).LT.AXMI) THEN | |
29272 | XXM(12)=1D6 | |
29273 | ENDIF | |
29274 | IF(AXMI.GE.AXMJ+PMAS(11,1)+PMAS(12,1)) THEN | |
29275 | LKNT=LKNT+1 | |
29276 | TEMP=PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
29277 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)*TEMP | |
29278 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29279 | IDLAM(LKNT,2)=-11 | |
29280 | IDLAM(LKNT,3)=12 | |
29281 | ||
29282 | C...ONLY DECAY CHI+1 -> E+ NU_E | |
29283 | IF( IMSS(12).NE. 0 ) GOTO 220 | |
29284 | IF(AXMI.GE.AXMJ+PMAS(13,1)+PMAS(14,1)) THEN | |
29285 | LKNT=LKNT+1 | |
29286 | XXM(11)=PMAS(PYCOMP(KSUSY1+13),1) | |
29287 | XXM(12)=PMAS(PYCOMP(KSUSY1+14),1) | |
29288 | IF(XXM(11).LT.AXMI) THEN | |
29289 | XXM(11)=1D6 | |
29290 | ELSEIF(XXM(12).LT.AXMI) THEN | |
29291 | XXM(12)=1D6 | |
29292 | ENDIF | |
29293 | TEMP=PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
29294 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)*TEMP | |
29295 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29296 | IDLAM(LKNT,2)=-13 | |
29297 | IDLAM(LKNT,3)=14 | |
29298 | IF(AXMI.GE.AXMJ+PMAS(15,1)+PMAS(16,1)) THEN | |
29299 | LKNT=LKNT+1 | |
29300 | IF(ABS(SFMIX(15,1)).GT.ABS(SFMIX(15,2))) THEN | |
29301 | XXM(11)=PMAS(PYCOMP(KSUSY1+15),1) | |
29302 | ELSE | |
29303 | XXM(11)=PMAS(PYCOMP(KSUSY2+15),1) | |
29304 | ENDIF | |
29305 | XXM(12)=PMAS(PYCOMP(KSUSY1+16),1) | |
29306 | IF(XXM(11).LT.AXMI) THEN | |
29307 | XXM(11)=1D6 | |
29308 | ENDIF | |
29309 | IF(XXM(12).LT.AXMI) THEN | |
29310 | XXM(12)=1D6 | |
29311 | ENDIF | |
29312 | TEMP=PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
29313 | XLAM(LKNT)=C1**2/XMI3/(16D0*PI)*TEMP | |
29314 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29315 | IDLAM(LKNT,2)=-15 | |
29316 | IDLAM(LKNT,3)=16 | |
29317 | ENDIF | |
29318 | ENDIF | |
29319 | ENDIF | |
29320 | ||
29321 | C...NOW, DO THE QUARKS | |
29322 | 160 CONTINUE | |
29323 | FID=1 | |
29324 | EI=KCHG(FID,1)/3D0 | |
29325 | T3=-0.5D0 | |
29326 | XXM(7)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1))*UMIX(IX,1) | |
29327 | FID=1 | |
29328 | EI=KCHG(FID,1)/3D0 | |
29329 | T3=0.5D0 | |
29330 | XXM(8)=-SR2*(T3*ZMIX(IJ,2)-TANW*(T3-EI)*ZMIX(IJ,1))*VMIX(IX,1) | |
29331 | ||
29332 | XXM(11)=PMAS(PYCOMP(KSUSY1+1),1) | |
29333 | XXM(12)=PMAS(PYCOMP(KSUSY1+2),1) | |
29334 | IF( XXM(11).LT.AXMI .AND. XXM(12).LT.AXMI ) GOTO 170 | |
29335 | IF(XXM(11).LT.AXMI) THEN | |
29336 | XXM(11)=1D6 | |
29337 | ELSEIF(XXM(12).LT.AXMI) THEN | |
29338 | XXM(12)=1D6 | |
29339 | ENDIF | |
29340 | IF(AXMI.GE.AXMJ+PMAS(1,1)+PMAS(2,1)) THEN | |
29341 | LKNT=LKNT+1 | |
29342 | XLAM(LKNT)=3D0*C1**2/XMI3/(16D0*PI)* | |
29343 | & PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
29344 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29345 | IDLAM(LKNT,2)=-1 | |
29346 | IDLAM(LKNT,3)=2 | |
29347 | IF(AXMI.GE.AXMJ+PMAS(3,1)+PMAS(4,1)) THEN | |
29348 | LKNT=LKNT+1 | |
29349 | XLAM(LKNT)=XLAM(LKNT-1) | |
29350 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29351 | IDLAM(LKNT,2)=-3 | |
29352 | IDLAM(LKNT,3)=4 | |
29353 | ENDIF | |
29354 | ENDIF | |
29355 | 170 CONTINUE | |
29356 | ENDIF | |
29357 | 180 CONTINUE | |
29358 | ||
29359 | C...CHI+_I -> CHI0_J + H+ | |
29360 | DO 190 IJ=1,4 | |
29361 | XMJ=SMZ(IJ) | |
29362 | AXMJ=ABS(XMJ) | |
29363 | XMJ2=XMJ**2 | |
29364 | XMHP=PMAS(ITHC,1) | |
29365 | XMHP2=XMHP**2 | |
29366 | IF(AXMI.GE.AXMJ+XMHP) THEN | |
29367 | LKNT=LKNT+1 | |
29368 | GL=CBETA*(ZMIX(IJ,4)*VMIX(IX,1)+(ZMIX(IJ,2)+ | |
29369 | & ZMIX(IJ,1)*TANW)*VMIX(IX,2)/SR2) | |
29370 | GR=SBETA*(ZMIX(IJ,3)*UMIX(IX,1)-(ZMIX(IJ,2)+ | |
29371 | & ZMIX(IJ,1)*TANW)*UMIX(IX,2)/SR2) | |
29372 | XLAM(LKNT)=PYX2XH(C1,XMI,XMJ,XMHP,GL,GR) | |
29373 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
29374 | IDLAM(LKNT,2)=ITHC | |
29375 | IDLAM(LKNT,3)=0 | |
29376 | ELSE | |
29377 | ||
29378 | ENDIF | |
29379 | 190 CONTINUE | |
29380 | ||
29381 | C...2-BODY DECAYS TO FERMION SFERMION | |
29382 | DO 200 J=1,16 | |
29383 | IF(J.GE.7.AND.J.LE.10) GOTO 200 | |
29384 | IF(MOD(J,2).EQ.0) THEN | |
29385 | KF1=KSUSY1+J-1 | |
29386 | ELSE | |
29387 | KF1=KSUSY1+J+1 | |
29388 | ENDIF | |
29389 | KF2=KF1+KSUSY1 | |
29390 | XMSF1=PMAS(PYCOMP(KF1),1) | |
29391 | XMSF2=PMAS(PYCOMP(KF2),1) | |
29392 | XMF=PMAS(J,1) | |
29393 | IF(J.LE.6) THEN | |
29394 | FCOL=3D0 | |
29395 | ELSE | |
29396 | FCOL=1D0 | |
29397 | ENDIF | |
29398 | ||
29399 | C...U~ D_L | |
29400 | IF(MOD(J,2).EQ.0) THEN | |
29401 | XMFP=PMAS(J-1,1) | |
29402 | AL=UMIX(IX,1) | |
29403 | BL=-XMF*VMIX(IX,2)/XMW/SBETA/SR2 | |
29404 | AR=-XMFP*UMIX(IX,2)/XMW/CBETA/SR2 | |
29405 | BR=0D0 | |
29406 | ISF=J-1 | |
29407 | ELSE | |
29408 | XMFP=PMAS(J+1,1) | |
29409 | AL=VMIX(IX,1) | |
29410 | BL=-XMF*UMIX(IX,2)/XMW/CBETA/SR2 | |
29411 | BR=0D0 | |
29412 | AR=-XMFP*VMIX(IX,2)/XMW/SBETA/SR2 | |
29413 | ISF=J+1 | |
29414 | ENDIF | |
29415 | ||
29416 | C...~U_L D | |
29417 | IF(AXMI.GE.XMF+XMSF1) THEN | |
29418 | LKNT=LKNT+1 | |
29419 | XMA2=XMSF1**2 | |
29420 | XMB2=XMF**2 | |
29421 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
29422 | CA=AL*SFMIX(ISF,1)+AR*SFMIX(ISF,2) | |
29423 | CB=BL*SFMIX(ISF,1)+BR*SFMIX(ISF,2) | |
29424 | XLAM(LKNT)=FCOL*C1/8D0/XMI3*SQRT(XL)*( (XMI2+XMB2-XMA2)* | |
29425 | & (CA**2+CB**2)+4D0*CA*CB*XMF*XMI) | |
29426 | IDLAM(LKNT,3)=0 | |
29427 | IF(MOD(J,2).EQ.0) THEN | |
29428 | IDLAM(LKNT,1)=-KF1 | |
29429 | IDLAM(LKNT,2)=J | |
29430 | ELSE | |
29431 | IDLAM(LKNT,1)=KF1 | |
29432 | IDLAM(LKNT,2)=-J | |
29433 | ENDIF | |
29434 | ENDIF | |
29435 | ||
29436 | C...U~ D_R | |
29437 | IF(AXMI.GE.XMF+XMSF2) THEN | |
29438 | LKNT=LKNT+1 | |
29439 | XMA2=XMSF2**2 | |
29440 | XMB2=XMF**2 | |
29441 | CA=AL*SFMIX(ISF,3)+AR*SFMIX(ISF,4) | |
29442 | CB=BL*SFMIX(ISF,3)+BR*SFMIX(ISF,4) | |
29443 | XL=PYLAMF(XMI2,XMA2,XMB2) | |
29444 | XLAM(LKNT)=FCOL*C1/8D0/XMI3*SQRT(XL)*( (XMI2+XMB2-XMA2)* | |
29445 | & (CA**2+CB**2)+4D0*CA*CB*XMF*XMI) | |
29446 | IDLAM(LKNT,3)=0 | |
29447 | IF(MOD(J,2).EQ.0) THEN | |
29448 | IDLAM(LKNT,1)=-KF2 | |
29449 | IDLAM(LKNT,2)=J | |
29450 | ELSE | |
29451 | IDLAM(LKNT,1)=KF2 | |
29452 | IDLAM(LKNT,2)=-J | |
29453 | ENDIF | |
29454 | ENDIF | |
29455 | 200 CONTINUE | |
29456 | ||
29457 | C...3-BODY DECAY TO Q Q~' GLUINO, ONLY IF IT CANNOT PROCEED THROUGH | |
29458 | C...A 2-BODY -- 2-BODY CHAIN | |
29459 | XMJ=PMAS(PYCOMP(KSUSY1+21),1) | |
29460 | IF(AXMI.GE.XMJ) THEN | |
29461 | AXMJ=ABS(XMJ) | |
29462 | S12MIN=0D0 | |
29463 | S12MAX=(AXMI-AXMJ)**2 | |
29464 | XXM(1)=0D0 | |
29465 | XXM(2)=XMJ | |
29466 | XXM(3)=0D0 | |
29467 | XXM(4)=XMI | |
29468 | XXM(5)=0D0 | |
29469 | XXM(6)=0D0 | |
29470 | XXM(9)=1D6 | |
29471 | XXM(10)=0D0 | |
29472 | XXM(7)=UMIX(IX,1)*SR2 | |
29473 | XXM(8)=VMIX(IX,1)*SR2 | |
29474 | XXM(11)=PMAS(PYCOMP(KSUSY1+1),1) | |
29475 | XXM(12)=PMAS(PYCOMP(KSUSY1+2),1) | |
29476 | IF( XXM(11).LT.AXMI .OR. XXM(12).LT.AXMI ) GOTO 210 | |
29477 | IF(AXMI.GE.AXMJ+PMAS(1,1)+PMAS(2,1)) THEN | |
29478 | LKNT=LKNT+1 | |
29479 | XLAM(LKNT)=4D0*C1*AS/XMI3/(16D0*PI)* | |
29480 | & PYGAUS(PYXXW5,S12MIN,S12MAX,PREC) | |
29481 | IDLAM(LKNT,1)=KSUSY1+21 | |
29482 | IDLAM(LKNT,2)=-1 | |
29483 | IDLAM(LKNT,3)=2 | |
29484 | IF(AXMI.GE.AXMJ+PMAS(3,1)+PMAS(4,1)) THEN | |
29485 | LKNT=LKNT+1 | |
29486 | XLAM(LKNT)=XLAM(LKNT-1) | |
29487 | IDLAM(LKNT,1)=KSUSY1+21 | |
29488 | IDLAM(LKNT,2)=-3 | |
29489 | IDLAM(LKNT,3)=4 | |
29490 | ENDIF | |
29491 | ENDIF | |
29492 | 210 CONTINUE | |
29493 | ENDIF | |
29494 | ||
29495 | 220 IKNT=LKNT | |
29496 | XLAM(0)=0D0 | |
29497 | DO 230 I=1,IKNT | |
29498 | XLAM(0)=XLAM(0)+XLAM(I) | |
29499 | IF(XLAM(I).LT.0D0) THEN | |
29500 | WRITE(MSTU(11),*) ' XLAM(I) = ',XLAM(I),KCIN, | |
29501 | & (IDLAM(I,J),J=1,3) | |
29502 | XLAM(I)=0D0 | |
29503 | ENDIF | |
29504 | 230 CONTINUE | |
29505 | IF(XLAM(0).EQ.0D0) THEN | |
29506 | XLAM(0)=1D-6 | |
29507 | WRITE(MSTU(11),*) ' XLAM(0) = ',XLAM(0) | |
29508 | WRITE(MSTU(11),*) LKNT | |
29509 | WRITE(MSTU(11),*) (XLAM(J),J=1,LKNT) | |
29510 | ENDIF | |
29511 | ||
29512 | RETURN | |
29513 | END | |
29514 | ||
29515 | C********************************************************************* | |
29516 | ||
29517 | C...PYXXZ5 | |
29518 | C...Calculates chi0 -> chi0 + f + ~f. | |
29519 | ||
29520 | FUNCTION PYXXZ5(X) | |
29521 | ||
29522 | C...Double precision and integer declarations. | |
29523 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29524 | INTEGER PYK,PYCHGE,PYCOMP | |
29525 | C...Parameter statement to help give large particle numbers. | |
29526 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
29527 | C...Commonblocks. | |
29528 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
29529 | COMMON/PYINTS/XXM(20) | |
29530 | SAVE /PYDAT1/,/PYINTS/ | |
29531 | ||
29532 | C...Local variables. | |
29533 | DOUBLE PRECISION PYXXZ5,X | |
29534 | DOUBLE PRECISION XM12,XM22,XM32,S,S23,S13,WPROP2 | |
29535 | DOUBLE PRECISION WW,WF1,WF2,WFL1,WFL2 | |
29536 | DOUBLE PRECISION SIJ | |
29537 | DOUBLE PRECISION SR2,OL,OR,FLD,FLU,XMV,XMG,XMSU,XMSD | |
29538 | DOUBLE PRECISION LE,RE,LE2,RE2,OL2,OR2,FLI,FLJ,FRI,FRJ | |
29539 | DOUBLE PRECISION S23MIN,S23MAX,S23AVE,S23DEL | |
29540 | INTEGER I | |
29541 | DATA SR2/1.4142136D0/ | |
29542 | ||
29543 | C...Statement functions. | |
29544 | C...Integral from x to y of (t-a)(b-t) dt. | |
29545 | TINT(X,Y,A,B)=(X-Y)*(-(X**2+X*Y+Y**2)/3D0+(B+A)*(X+Y)/2D0-A*B) | |
29546 | C...Integral from x to y of (t-a)(b-t)/(t-c) dt. | |
29547 | TINT2(X,Y,A,B,C)=(X-Y)*(-0.5D0*(X+Y)+(B+A-C))- | |
29548 | &LOG(ABS((X-C)/(Y-C)))*(C-B)*(C-A) | |
29549 | C...Integral from x to y of (t-a)(b-t)/(t-c)**2 dt. | |
29550 | TINT3(X,Y,A,B,C)=-(X-Y)+(C-A)*(C-B)*(Y-X)/(X-C)/(Y-C)+ | |
29551 | &(B+A-2D0*C)*LOG(ABS((X-C)/(Y-C))) | |
29552 | C...Integral from x to y of (t-a)/(b-t) dt. | |
29553 | UTINT(X,Y,A,B)=LOG(ABS((X-A)/(B-X)*(B-Y)/(Y-A)))/(B-A) | |
29554 | C...Integral from x to y of 1/(t-a) dt. | |
29555 | TPROP(X,Y,A)=LOG(ABS((X-A)/(Y-A))) | |
29556 | ||
29557 | XM12=XXM(1)**2 | |
29558 | XM22=XXM(2)**2 | |
29559 | XM32=XXM(3)**2 | |
29560 | S=XXM(4)**2 | |
29561 | S13=X | |
29562 | ||
29563 | S23AVE=XM22+XM32-0.5D0/X*(X+XM32-XM12)*(X+XM22-S) | |
29564 | S23DEL=0.5D0/X*SQRT( ( (X-XM12-XM32)**2-4D0*XM12*XM32)* | |
29565 | &( (X-XM22-S)**2 -4D0*XM22*S ) ) | |
29566 | ||
29567 | S23MIN=(S23AVE-S23DEL) | |
29568 | S23MAX=(S23AVE+S23DEL) | |
29569 | ||
29570 | XMV=XXM(7) | |
29571 | XMG=XXM(8) | |
29572 | XMSD=XXM(5)**2 | |
29573 | XMSU=XXM(6)**2 | |
29574 | OL=XXM(9) | |
29575 | OR=XXM(10) | |
29576 | OL2=OL**2 | |
29577 | OR2=OR**2 | |
29578 | LE=XXM(11) | |
29579 | RE=XXM(12) | |
29580 | LE2=LE**2 | |
29581 | RE2=RE**2 | |
29582 | FLI=XXM(13) | |
29583 | FLJ=XXM(14) | |
29584 | FRI=XXM(15) | |
29585 | FRJ=XXM(16) | |
29586 | ||
29587 | WPROP2=(S13-XMV**2)**2+(XMV*XMG)**2 | |
29588 | SIJ=2D0*XXM(2)*XXM(4)*S13 | |
29589 | ||
29590 | IF(XMV.LE.1000D0) THEN | |
29591 | WW=2D0*(LE2+RE2)*(OL2)*( 2D0*TINT(S23MAX,S23MIN,XM22,S) | |
29592 | & +SIJ*(S23MAX-S23MIN) )/WPROP2 | |
29593 | IF(XXM(5).LE.10000D0) THEN | |
29594 | WFL1=2D0*FLI*FLJ*OL*LE*( 2D0*TINT2(S23MAX,S23MIN,XM22,S,XMSD) | |
29595 | & + SIJ*TPROP(S23MAX,S23MIN,XMSD) ) | |
29596 | WFL1=WFL1*(S13-XMV**2)/WPROP2 | |
29597 | ELSE | |
29598 | WFL1=0D0 | |
29599 | ENDIF | |
29600 | IF(XXM(6).LE.10000D0) THEN | |
29601 | WFL2=2D0*FRI*FRJ*OR*RE*( 2D0*TINT2(S23MAX,S23MIN,XM22,S,XMSU) | |
29602 | & + SIJ*TPROP(S23MAX,S23MIN,XMSU) ) | |
29603 | WFL2=WFL2*(S13-XMV**2)/WPROP2 | |
29604 | ELSE | |
29605 | WFL2=0D0 | |
29606 | ENDIF | |
29607 | ELSE | |
29608 | WW=0D0 | |
29609 | WFL1=0D0 | |
29610 | WFL2=0D0 | |
29611 | ENDIF | |
29612 | IF(XXM(5).LE.10000D0) THEN | |
29613 | WF1=0.5D0*(FLI*FLJ)**2*( 2D0*TINT3(S23MAX,S23MIN,XM22,S,XMSD) | |
29614 | & + SIJ*UTINT(S23MAX,S23MIN,XMSD,XM22+S-S13-XMSD) ) | |
29615 | ELSE | |
29616 | WF1=0D0 | |
29617 | ENDIF | |
29618 | IF(XXM(6).LE.10000D0) THEN | |
29619 | WF2=0.5D0*(FRI*FRJ)**2*( 2D0*TINT3(S23MAX,S23MIN,XM22,S,XMSU) | |
29620 | & + SIJ*UTINT(S23MAX,S23MIN,XMSU,XM22+S-S13-XMSU) ) | |
29621 | ELSE | |
29622 | WF2=0D0 | |
29623 | ENDIF | |
29624 | ||
29625 | C...WFL1=0.0 | |
29626 | C...WFL2=0.0 | |
29627 | PYXXZ5=(WW+WF1+WF2+WFL1+WFL2) | |
29628 | IF(PYXXZ5.LT.0D0) THEN | |
29629 | WRITE(MSTU(11),*) ' NEGATIVE WT IN PYXXZ5 ' | |
29630 | WRITE(MSTU(11),*) XXM(1),XXM(2),XXM(3),XXM(4) | |
29631 | WRITE(MSTU(11),*) (XXM(I),I=5,8) | |
29632 | WRITE(MSTU(11),*) (XXM(I),I=9,12) | |
29633 | WRITE(MSTU(11),*) (XXM(I),I=13,16) | |
29634 | WRITE(MSTU(11),*) WW,WF1,WF2,WFL1,WFL2 | |
29635 | WRITE(MSTU(11),*) S23MIN,S23MAX | |
29636 | PYXXZ5=0D0 | |
29637 | ENDIF | |
29638 | ||
29639 | RETURN | |
29640 | END | |
29641 | ||
29642 | C********************************************************************* | |
29643 | ||
29644 | C...PYXXW5 | |
29645 | C...Calculates chi0(+) -> chi+(0) + f + ~f'. | |
29646 | ||
29647 | FUNCTION PYXXW5(X) | |
29648 | ||
29649 | C...Double precision and integer declarations. | |
29650 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29651 | INTEGER PYK,PYCHGE,PYCOMP | |
29652 | C...Parameter statement to help give large particle numbers. | |
29653 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
29654 | C...Commonblocks. | |
29655 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
29656 | COMMON/PYINTS/XXM(20) | |
29657 | SAVE /PYDAT1/,/PYINTS/ | |
29658 | ||
29659 | C...Local variables. | |
29660 | DOUBLE PRECISION PYXXW5,X | |
29661 | DOUBLE PRECISION XM12,XM22,XM32,S,S23,S13,S12,WPROP2 | |
29662 | DOUBLE PRECISION WW,WU,WD,WWU,WWD,WUD | |
29663 | DOUBLE PRECISION SR2,OL,OR,FLD,FLU,XMV,XMG,XMSD,XMSU | |
29664 | DOUBLE PRECISION SIJ | |
29665 | DOUBLE PRECISION S23MIN,S23MAX,S23AVE,S23DEL | |
29666 | INTEGER IK | |
29667 | SAVE IK | |
29668 | DATA IK/0/ | |
29669 | DATA SR2/1.4142136D0/ | |
29670 | ||
29671 | C...Statement functions. | |
29672 | C...Integral from x to y of (t-a)(b-t) dt. | |
29673 | TINT(X,Y,A,B)=(X-Y)*(-(X**2+X*Y+Y**2)/3D0+(B+A)*(X+Y)/2D0-A*B) | |
29674 | C...Integral from x to y of (t-a)(b-t)/(t-c) dt. | |
29675 | TINT2(X,Y,A,B,C)=(X-Y)*(-0.5D0*(X+Y)+(B+A-C))- | |
29676 | &LOG(ABS((X-C)/(Y-C)))*(C-B)*(C-A) | |
29677 | C...Integral from x to y of (t-a)(b-t)/(t-c)**2 dt. | |
29678 | TINT3(X,Y,A,B,C)=-(X-Y)+(C-A)*(C-B)*(Y-X)/(X-C)/(Y-C)+ | |
29679 | &(B+A-2D0*C)*LOG(ABS((X-C)/(Y-C))) | |
29680 | C...Integral from x to y of (t-a)/(b-t) dt. | |
29681 | UTINT(X,Y,A,B)=LOG(ABS((X-A)/(B-X)*(B-Y)/(Y-A)))/(B-A) | |
29682 | C...Integral from x to y of 1/(t-a) dt. | |
29683 | TPROP(X,Y,A)=LOG(ABS((X-A)/(Y-A))) | |
29684 | ||
29685 | XM12=XXM(1)**2 | |
29686 | XM22=XXM(2)**2 | |
29687 | XM32=XXM(3)**2 | |
29688 | S=XXM(4)**2 | |
29689 | S13=X | |
29690 | IF(XXM(1).EQ.0.AND.XXM(3).EQ.0D0) THEN | |
29691 | S23AVE=0.5D0*(XM22+S-S13) | |
29692 | S23DEL=0.5D0*SQRT( (X-XM22-S)**2-4D0*XM22*S ) | |
29693 | ELSE | |
29694 | S23AVE=XM22+XM32-0.5D0/X*(X+XM32-XM12)*(X+XM22-S) | |
29695 | S23DEL=0.5D0/X*SQRT( ( (X-XM12-XM32)**2-4D0*XM12*XM32)* | |
29696 | & ( (X-XM22-S)**2 -4D0*XM22*S ) ) | |
29697 | ENDIF | |
29698 | S23MIN=(S23AVE-S23DEL) | |
29699 | S23MAX=(S23AVE+S23DEL) | |
29700 | IF(S23DEL.LT.1D-3) THEN | |
29701 | PYXXW5=0D0 | |
29702 | RETURN | |
29703 | ENDIF | |
29704 | XMV=XXM(9) | |
29705 | XMG=XXM(10) | |
29706 | XMSD=XXM(11)**2 | |
29707 | XMSU=XXM(12)**2 | |
29708 | OL=XXM(5) | |
29709 | OR=XXM(6) | |
29710 | FLD=XXM(7) | |
29711 | FLU=XXM(8) | |
29712 | ||
29713 | WPROP2=((S13-XMV**2)**2+(XMV*XMG)**2) | |
29714 | SIJ=S13*XXM(2)*XXM(4) | |
29715 | IF(XMV.LE.1000D0) THEN | |
29716 | WW=(OR**2+OL**2)*TINT(S23MAX,S23MIN,XM22,S) | |
29717 | & -2D0*OL*OR*SIJ*(S23MAX-S23MIN) | |
29718 | WW=WW/WPROP2 | |
29719 | IF(XXM(11).LE.10000D0) THEN | |
29720 | WWD=OL*SIJ*TPROP(S23MAX,S23MIN,XMSD) | |
29721 | & -OR*TINT2(S23MAX,S23MIN,XM22,S,XMSD) | |
29722 | WWD=-WWD*SR2*FLD | |
29723 | WWD=WWD*(S13-XMV**2)/WPROP2 | |
29724 | ELSE | |
29725 | WWD=0D0 | |
29726 | ENDIF | |
29727 | IF(XXM(12).LE.10000D0) THEN | |
29728 | WWU=OR*SIJ*TPROP(S23MAX,S23MIN,XMSU) | |
29729 | & -OL*TINT2(S23MAX,S23MIN,XM22,S,XMSU) | |
29730 | WWU=WWU*SR2*FLU | |
29731 | WWU=WWU*(S13-XMV**2)/WPROP2 | |
29732 | ELSE | |
29733 | WWU=0D0 | |
29734 | ENDIF | |
29735 | ELSE | |
29736 | WW=0D0 | |
29737 | WWD=0D0 | |
29738 | WWU=0D0 | |
29739 | ENDIF | |
29740 | IF(XXM(12).LE.10000D0) THEN | |
29741 | WU=0.5D0*FLU**2*TINT3(S23MAX,S23MIN,XM22,S,XMSU) | |
29742 | ELSE | |
29743 | WU=0D0 | |
29744 | ENDIF | |
29745 | IF(XXM(11).LE.10000D0) THEN | |
29746 | WD=0.5D0*FLD**2*TINT3(S23MAX,S23MIN,XM22,S,XMSD) | |
29747 | ELSE | |
29748 | WD=0D0 | |
29749 | ENDIF | |
29750 | IF(XXM(11).LE.10000D0.AND.XXM(12).LE.10000D0) THEN | |
29751 | WUD=FLU*FLD*SIJ*UTINT(S23MAX,S23MIN,XMSD,XM22+S-S13-XMSU) | |
29752 | ELSE | |
29753 | WUD=0D0 | |
29754 | ENDIF | |
29755 | ||
29756 | PYXXW5=WW+WU+WD+WWU+WWD+WUD | |
29757 | ||
29758 | IF(PYXXW5.LT.0D0) THEN | |
29759 | IF(IK.EQ.0) THEN | |
29760 | WRITE(MSTU(11),*) ' NEGATIVE WT IN PYXXW5 ' | |
29761 | WRITE(MSTU(11),*) WW,WU,WD | |
29762 | WRITE(MSTU(11),*) WWD,WWU,WUD | |
29763 | WRITE(MSTU(11),*) SQRT(S13) | |
29764 | WRITE(MSTU(11),*) TINT(S23MAX,S23MIN,XM22,S) | |
29765 | IK=1 | |
29766 | ENDIF | |
29767 | PYXXW5=0D0 | |
29768 | ENDIF | |
29769 | ||
29770 | RETURN | |
29771 | END | |
29772 | ||
29773 | C********************************************************************* | |
29774 | ||
29775 | C...PYXXGA | |
29776 | C...Calculates chi0_i -> chi0_j + gamma. | |
29777 | ||
29778 | FUNCTION PYXXGA(C0,XM1,XM2,XMTR,XMTL) | |
29779 | ||
29780 | C...Double precision and integer declarations. | |
29781 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29782 | INTEGER PYK,PYCHGE,PYCOMP | |
29783 | ||
29784 | C...Local variables. | |
29785 | DOUBLE PRECISION PYXXGA,C0,XM1,XM2,XMTR,XMTL | |
29786 | DOUBLE PRECISION F1,F2 | |
29787 | ||
29788 | F1=(1D0+XMTR/(1D0-XMTR)*LOG(XMTR))/(1D0-XMTR) | |
29789 | F2=(1D0+XMTL/(1D0-XMTL)*LOG(XMTL))/(1D0-XMTL) | |
29790 | PYXXGA=C0*((XM1**2-XM2**2)/XM1)**3 | |
29791 | PYXXGA=PYXXGA*(2D0/3D0*(F1+F2)-13D0/12D0)**2 | |
29792 | ||
29793 | RETURN | |
29794 | END | |
29795 | ||
29796 | C********************************************************************* | |
29797 | ||
29798 | C...PYX2XG | |
29799 | C...Calculates the decay rate for ino -> ino + gauge boson. | |
29800 | ||
29801 | FUNCTION PYX2XG(C1,XM1,XM2,XM3,GL,GR) | |
29802 | ||
29803 | C...Double precision and integer declarations. | |
29804 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29805 | INTEGER PYK,PYCHGE,PYCOMP | |
29806 | ||
29807 | C...Local variables. | |
29808 | DOUBLE PRECISION PYX2XG,XM1,XM2,XM3,GL,GR | |
29809 | DOUBLE PRECISION XL,PYLAMF,C1 | |
29810 | DOUBLE PRECISION XMI2,XMJ2,XMV2,XMI3 | |
29811 | ||
29812 | XMI2=XM1**2 | |
29813 | XMI3=ABS(XM1**3) | |
29814 | XMJ2=XM2**2 | |
29815 | XMV2=XM3**2 | |
29816 | XL=PYLAMF(XMI2,XMJ2,XMV2) | |
29817 | PYX2XG=C1/8D0/XMI3*SQRT(XL) | |
29818 | &*((GL**2+GR**2)*(XL+3D0*XMV2*(XMI2+XMJ2-XMV2))- | |
29819 | &12D0*GL*GR*XM1*XM2*XMV2) | |
29820 | ||
29821 | RETURN | |
29822 | END | |
29823 | ||
29824 | C********************************************************************* | |
29825 | ||
29826 | C...PYX2XH | |
29827 | C...Calculates the decay rate for ino -> ino + H. | |
29828 | ||
29829 | FUNCTION PYX2XH(C1,XM1,XM2,XM3,GL,GR) | |
29830 | ||
29831 | C...Double precision and integer declarations. | |
29832 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29833 | INTEGER PYK,PYCHGE,PYCOMP | |
29834 | ||
29835 | C...Local variables. | |
29836 | DOUBLE PRECISION PYX2XH,XM1,XM2,XM3,GL,GR | |
29837 | DOUBLE PRECISION XL,PYLAMF,C1 | |
29838 | DOUBLE PRECISION XMI2,XMJ2,XMV2,XMI3 | |
29839 | ||
29840 | XMI2=XM1**2 | |
29841 | XMI3=ABS(XM1**3) | |
29842 | XMJ2=XM2**2 | |
29843 | XMV2=XM3**2 | |
29844 | XL=PYLAMF(XMI2,XMJ2,XMV2) | |
29845 | PYX2XH=C1/8D0/XMI3*SQRT(XL) | |
29846 | &*((GL**2+GR**2)*(XMI2+XMJ2-XMV2)+ | |
29847 | &4D0*GL*GR*XM1*XM2) | |
29848 | ||
29849 | RETURN | |
29850 | END | |
29851 | ||
29852 | C********************************************************************* | |
29853 | ||
29854 | C...PYXXZ2 | |
29855 | C...Calculates chi+ -> chi+ + f + ~f. | |
29856 | ||
29857 | FUNCTION PYXXZ2(X) | |
29858 | ||
29859 | C...Double precision and integer declarations. | |
29860 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29861 | INTEGER PYK,PYCHGE,PYCOMP | |
29862 | C...Parameter statement to help give large particle numbers. | |
29863 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
29864 | C...Commonblocks. | |
29865 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
29866 | COMMON/PYINTS/XXM(20) | |
29867 | SAVE /PYDAT1/,/PYINTS/ | |
29868 | ||
29869 | C...Local variables. | |
29870 | DOUBLE PRECISION PYXXZ2,X | |
29871 | DOUBLE PRECISION XM12,XM22,XM32,S,S23,S13,S12,WPROP2 | |
29872 | DOUBLE PRECISION WW,WU,WD,WWU,WWD,WUD | |
29873 | DOUBLE PRECISION SR2,OL,OR,FLD,FLU,XMV,XMG,XMSL | |
29874 | DOUBLE PRECISION SIJ | |
29875 | DOUBLE PRECISION LE,RE,LE2,RE2,OL2,OR2,CT | |
29876 | DOUBLE PRECISION S23MIN,S23MAX,S23AVE,S23DEL | |
29877 | INTEGER I | |
29878 | DATA SR2/1.4142136D0/ | |
29879 | ||
29880 | C...Statement functions. | |
29881 | C...Integral from x to y of (t-a)(b-t) dt. | |
29882 | TINT(X,Y,A,B)=(X-Y)*(-(X**2+X*Y+Y**2)/3D0+(B+A)*(X+Y)/2D0-A*B) | |
29883 | C...Integral from x to y of (t-a)(b-t)/(t-c) dt. | |
29884 | TINT2(X,Y,A,B,C)=(X-Y)*(-0.5D0*(X+Y)+(B+A-C))- | |
29885 | &LOG(ABS((X-C)/(Y-C)))*(C-B)*(C-A) | |
29886 | C...Integral from x to y of (t-a)(b-t)/(t-c)**2 dt. | |
29887 | TINT3(X,Y,A,B,C)=-(X-Y)+(C-A)*(C-B)*(Y-X)/(X-C)/(Y-C)+ | |
29888 | &(B+A-2D0*C)*LOG(ABS((X-C)/(Y-C))) | |
29889 | C...Integral from x to y of 1/(t-a) dt. | |
29890 | TPROP(X,Y,A)=LOG(ABS((X-A)/(Y-A))) | |
29891 | ||
29892 | XM12=XXM(1)**2 | |
29893 | XM22=XXM(2)**2 | |
29894 | XM32=XXM(3)**2 | |
29895 | S=XXM(4)**2 | |
29896 | S13=X | |
29897 | IF(XXM(1).EQ.0.AND.XXM(3).EQ.0D0) THEN | |
29898 | S23AVE=0.5D0*(XM22+S-S13) | |
29899 | S23DEL=0.5D0*SQRT( (X-XM22-S)**2-4D0*XM22*S ) | |
29900 | ELSE | |
29901 | S23AVE=XM22+XM32-0.5D0/X*(X+XM32-XM12)*(X+XM22-S) | |
29902 | S23DEL=0.5D0/X*SQRT( ( (X-XM12-XM32)**2-4D0*XM12*XM32)* | |
29903 | & ( (X-XM22-S)**2 -4D0*XM22*S ) ) | |
29904 | ENDIF | |
29905 | S23MIN=(S23AVE-S23DEL) | |
29906 | S23MAX=(S23AVE+S23DEL) | |
29907 | IF(S23DEL.LT.1D-3) THEN | |
29908 | PYXXZ2=0D0 | |
29909 | RETURN | |
29910 | ENDIF | |
29911 | ||
29912 | XMV=XXM(9) | |
29913 | XMG=XXM(10) | |
29914 | XMSL=XXM(11)**2 | |
29915 | OL=XXM(5) | |
29916 | OR=XXM(6) | |
29917 | OL2=OL**2 | |
29918 | OR2=OR**2 | |
29919 | LE=XXM(7) | |
29920 | RE=XXM(8) | |
29921 | LE2=LE**2 | |
29922 | RE2=RE**2 | |
29923 | CT=XXM(12) | |
29924 | ||
29925 | WPROP2=(S13-XMV**2)**2+(XMV*XMG)**2 | |
29926 | SIJ=XXM(2)*XXM(4)*S13 | |
29927 | WW=(LE2+RE2)*(OR2+OL2)*2D0*TINT(S23MAX,S23MIN,XM22,S) | |
29928 | &- 4D0*(LE2+RE2)*OL*OR*SIJ*(S23MAX-S23MIN) | |
29929 | WW=WW/WPROP2 | |
29930 | IF(XMSL.GT.1D4*S) THEN | |
29931 | WD=0D0 | |
29932 | WWD=0D0 | |
29933 | ELSE | |
29934 | WD=0.5D0*CT**2*TINT3(S23MAX,S23MIN,XM22,S,XMSL) | |
29935 | WWD=OL*TINT2(S23MAX,S23MIN,XM22,S,XMSL)- | |
29936 | & OR*SIJ*TPROP(S23MAX,S23MIN,XMSL) | |
29937 | WWD=2D0*WWD*LE*CT*(S13-XMV**2)/WPROP2 | |
29938 | ENDIF | |
29939 | ||
29940 | PYXXZ2=(WW+WD+WWD) | |
29941 | IF(PYXXZ2.LT.0D0) THEN | |
29942 | WRITE(MSTU(11),*) ' NEGATIVE WT IN PYXXZ2 ' | |
29943 | WRITE(MSTU(11),*) WW,WD,WWD | |
29944 | WRITE(MSTU(11),*) S23MIN,S23MAX | |
29945 | WRITE(MSTU(11),*) (XXM(I),I=1,4) | |
29946 | WRITE(MSTU(11),*) (XXM(I),I=5,8) | |
29947 | WRITE(MSTU(11),*) (XXM(I),I=9,12) | |
29948 | PYXXZ2=0D0 | |
29949 | ENDIF | |
29950 | ||
29951 | RETURN | |
29952 | END | |
29953 | ||
29954 | C********************************************************************* | |
29955 | ||
29956 | C...PYHEXT | |
29957 | C...Calculates the non-standard decay modes of the Higgs boson. | |
29958 | ||
29959 | SUBROUTINE PYHEXT(KFIN,XLAM,IDLAM,IKNT) | |
29960 | ||
29961 | C...Double precision and integer declarations. | |
29962 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
29963 | INTEGER PYK,PYCHGE,PYCOMP | |
29964 | C...Parameter statement to help give large particle numbers. | |
29965 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
29966 | C...Commonblocks. | |
29967 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
29968 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
29969 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
29970 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
29971 | COMMON/PYSSMT/ZMIX(4,4),UMIX(2,2),VMIX(2,2),SMZ(4),SMW(2), | |
29972 | &SFMIX(16,4) | |
29973 | SAVE /PYDAT1/,/PYDAT2/,/PYPARS/,/PYMSSM/,/PYSSMT/ | |
29974 | ||
29975 | C...Local variables. | |
29976 | INTEGER KFIN | |
29977 | DOUBLE PRECISION XMI,XMJ,XMF,XMSF1,XMSF2,XMW,XMW2, | |
29978 | &XMZ,XMZ2,AXMJ,AXMI | |
29979 | DOUBLE PRECISION XMFP,XMF1,XMF2,XMSL,XMG | |
29980 | DOUBLE PRECISION S12MIN,S12MAX | |
29981 | DOUBLE PRECISION XMI2,XMI3,XMJ2,XMH,XMH2,XMHP,XMHP2,XMA2,XMB2 | |
29982 | DOUBLE PRECISION PYLAMF,XL,CF,EI | |
29983 | INTEGER IDU,IC,ILR,IFL | |
29984 | DOUBLE PRECISION TANW,XW,AEM,C1,AS | |
29985 | DOUBLE PRECISION PYH2XX,GHLL,GHRR,GHLR | |
29986 | DOUBLE PRECISION XLAM(0:200) | |
29987 | INTEGER IDLAM(200,3) | |
29988 | INTEGER LKNT,IX,IH,J,IJ,I,IKNT,IK | |
29989 | INTEGER ITH(4) | |
29990 | INTEGER KFNCHI(4),KFCCHI(2) | |
29991 | DOUBLE PRECISION ETAH(3),CH(3),DH(3),EH(3) | |
29992 | DOUBLE PRECISION SR2 | |
29993 | DOUBLE PRECISION BETA,ALFA | |
29994 | DOUBLE PRECISION CBETA,SBETA,GR,GL,F12K,F21K,TANB | |
29995 | DOUBLE PRECISION PYALEM,PI,PYALPS | |
29996 | DOUBLE PRECISION AL,BL,AR,BR,ALP,ARP,BLP,BRP,ALR | |
29997 | DOUBLE PRECISION XMK,AXMK,XMK2,COSA,SINA,CW,XML | |
29998 | DOUBLE PRECISION XMUZ,ATRIT,ATRIB,ATRIL | |
29999 | DOUBLE PRECISION XMJL,XMJR,XM1,XM2 | |
30000 | DATA ITH/25,35,36,37/ | |
30001 | DATA ETAH/1D0,1D0,-1D0/ | |
30002 | DATA SR2/1.4142136D0/ | |
30003 | DATA PI/3.141592654D0/ | |
30004 | DATA KFNCHI/1000022,1000023,1000025,1000035/ | |
30005 | DATA KFCCHI/1000024,1000037/ | |
30006 | ||
30007 | C...COUNT THE NUMBER OF DECAY MODES | |
30008 | LKNT=IKNT | |
30009 | ||
30010 | XMW=PMAS(24,1) | |
30011 | XMW2=XMW**2 | |
30012 | XMZ=PMAS(23,1) | |
30013 | XMZ2=XMZ**2 | |
30014 | XW=PARU(102) | |
30015 | TANW = SQRT(XW/(1D0-XW)) | |
30016 | CW=SQRT(1D0-XW) | |
30017 | ||
30018 | C...1 - 4 DEPENDING ON Higgs species. | |
30019 | IH=1 | |
30020 | IF(KFIN.EQ.ITH(2)) IH=2 | |
30021 | IF(KFIN.EQ.ITH(3)) IH=3 | |
30022 | IF(KFIN.EQ.ITH(4)) IH=4 | |
30023 | ||
30024 | XMI=PMAS(KFIN,1) | |
30025 | XMI2=XMI**2 | |
30026 | AXMI=ABS(XMI) | |
30027 | AEM=PYALEM(XMI2) | |
30028 | AS =PYALPS(XMI2) | |
30029 | C1=AEM/XW | |
30030 | XMI3=ABS(XMI**3) | |
30031 | ||
30032 | TANB=RMSS(5) | |
30033 | BETA=ATAN(TANB) | |
30034 | CBETA=COS(BETA) | |
30035 | SBETA=TANB*CBETA | |
30036 | ALFA=RMSS(18) | |
30037 | COSA=COS(ALFA) | |
30038 | SINA=SIN(ALFA) | |
30039 | ATRIT=RMSS(16) | |
30040 | ATRIB=RMSS(15) | |
30041 | ATRIL=RMSS(17) | |
30042 | XMUZ=-RMSS(4) | |
30043 | ||
30044 | IF(IH.EQ.4) GOTO 180 | |
30045 | ||
30046 | C...CHECK ALL 2-BODY DECAYS TO GAUGE AND HIGGS BOSONS | |
30047 | C...H0_K -> CHI0_I + CHI0_J | |
30048 | EH(1)=SINA | |
30049 | EH(2)=COSA | |
30050 | EH(3)=-SBETA | |
30051 | DH(1)=COSA | |
30052 | DH(2)=-SINA | |
30053 | DH(3)=CBETA | |
30054 | DO 110 IJ=1,4 | |
30055 | XMJ=SMZ(IJ) | |
30056 | AXMJ=ABS(XMJ) | |
30057 | DO 100 IK=1,IJ | |
30058 | XMK=SMZ(IK) | |
30059 | AXMK=ABS(XMK) | |
30060 | IF(AXMI.GE.AXMJ+AXMK) THEN | |
30061 | LKNT=LKNT+1 | |
30062 | F21K=0.5D0* | |
30063 | & EH(IH)*( ZMIX(IK,3)*ZMIX(IJ,2)+ZMIX(IJ,3)*ZMIX(IK,2) | |
30064 | & -TANW*(ZMIX(IK,3)*ZMIX(IJ,1)+ZMIX(IJ,3)*ZMIX(IK,1)) )+ | |
30065 | & 0.5D0*DH(IH)*( ZMIX(IK,4)*ZMIX(IJ,2)+ZMIX(IJ,4)*ZMIX(IK,2) | |
30066 | & -TANW*(ZMIX(IK,4)*ZMIX(IJ,1)+ZMIX(IJ,4)*ZMIX(IK,1)) ) | |
30067 | F12K=0.5D0* | |
30068 | & EH(IH)*(ZMIX(IJ,3)*ZMIX(IK,2)+ZMIX(IK,3)*ZMIX(IJ,2) | |
30069 | & -TANW*(ZMIX(IJ,3)*ZMIX(IK,1)+ZMIX(IK,3)*ZMIX(IJ,1)))+ | |
30070 | & 0.5D0*DH(IH)*( ZMIX(IJ,4)*ZMIX(IK,2)+ZMIX(IK,4)*ZMIX(IJ,2) | |
30071 | & -TANW*(ZMIX(IJ,4)*ZMIX(IK,1)+ZMIX(IK,4)*ZMIX(IJ,1)) ) | |
30072 | C...SIGN OF MASSES I,J | |
30073 | XML=XMK*ETAH(IH) | |
30074 | XLAM(LKNT)=PYH2XX(C1,XMI,XMJ,XML,F12K,F21K) | |
30075 | IF(IJ.EQ.IK) XLAM(LKNT)=XLAM(LKNT)*0.5D0 | |
30076 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
30077 | IDLAM(LKNT,2)=KFNCHI(IK) | |
30078 | IDLAM(LKNT,3)=0 | |
30079 | ENDIF | |
30080 | 100 CONTINUE | |
30081 | 110 CONTINUE | |
30082 | ||
30083 | C...H0_K -> CHI+_I CHI-_J | |
30084 | DO 130 IJ=1,2 | |
30085 | XMJ=SMW(IJ) | |
30086 | AXMJ=ABS(XMJ) | |
30087 | DO 120 IK=1,2 | |
30088 | XMK=SMW(IK) | |
30089 | AXMK=ABS(XMK) | |
30090 | IF(AXMI.GE.AXMJ+AXMK) THEN | |
30091 | LKNT=LKNT+1 | |
30092 | F21K=(VMIX(IJ,1)*UMIX(IK,2)*EH(IH) - | |
30093 | & VMIX(IJ,2)*UMIX(IK,1)*DH(IH))/SR2 | |
30094 | F12K=(VMIX(IK,1)*UMIX(IJ,2)*EH(IH) - | |
30095 | & VMIX(IK,2)*UMIX(IJ,1)*DH(IH))/SR2 | |
30096 | XML=-XMK*ETAH(IH) | |
30097 | XLAM(LKNT)=PYH2XX(C1,XMI,XMJ,XML,F12K,F21K) | |
30098 | IDLAM(LKNT,1)=KFCCHI(IJ) | |
30099 | IDLAM(LKNT,2)=-KFCCHI(IK) | |
30100 | IDLAM(LKNT,3)=0 | |
30101 | ENDIF | |
30102 | 120 CONTINUE | |
30103 | 130 CONTINUE | |
30104 | ||
30105 | C...HIGGS TO SFERMION SFERMION | |
30106 | DO 160 IFL=1,16 | |
30107 | IF(IFL.GE.7.AND.IFL.LE.10) GOTO 160 | |
30108 | IJ=KSUSY1+IFL | |
30109 | XMJL=PMAS(PYCOMP(IJ),1) | |
30110 | XMJR=PMAS(PYCOMP(IJ+KSUSY1),1) | |
30111 | IF(AXMI.GE.2D0*MIN(XMJL,XMJR)) THEN | |
30112 | XMJ=XMJL | |
30113 | XMJ2=XMJ**2 | |
30114 | XL=PYLAMF(XMI2,XMJ2,XMJ2) | |
30115 | XMF=PMAS(IFL,1) | |
30116 | EI=KCHG(IFL,1)/3D0 | |
30117 | IDU=2-MOD(IFL,2) | |
30118 | ||
30119 | IF(IH.EQ.1) THEN | |
30120 | IF(IDU.EQ.1) THEN | |
30121 | GHLL=-XMZ/CW*(0.5D0+EI*XW)*SIN(ALFA+BETA)+ | |
30122 | & XMF**2/XMW*SINA/CBETA | |
30123 | GHRR=XMZ/CW*(EI*XW)*SIN(ALFA+BETA)+ | |
30124 | & XMF**2/XMW*SINA/CBETA | |
30125 | IF(IFL.EQ.5) THEN | |
30126 | GHLR=-XMF/2D0/XMW/CBETA*(XMUZ*COSA- | |
30127 | & ATRIB*SINA) | |
30128 | ELSEIF(IFL.EQ.15) THEN | |
30129 | GHLR=-XMF/2D0/XMW/CBETA*(XMUZ*COSA- | |
30130 | & ATRIL*SINA) | |
30131 | ELSE | |
30132 | GHLR=0D0 | |
30133 | ENDIF | |
30134 | ELSE | |
30135 | GHLL=XMZ/CW*(0.5D0-EI*XW)*SIN(ALFA+BETA)- | |
30136 | & XMF**2/XMW*COSA/SBETA | |
30137 | GHRR=XMZ/CW*(EI*XW)*SIN(ALFA+BETA)- | |
30138 | & XMF**2/XMW*COSA/SBETA | |
30139 | IF(IFL.EQ.6) THEN | |
30140 | GHLR=XMF/2D0/XMW/SBETA*(XMUZ*SINA- | |
30141 | & ATRIT*COSA) | |
30142 | ELSE | |
30143 | GHLR=0D0 | |
30144 | ENDIF | |
30145 | ENDIF | |
30146 | ||
30147 | ELSEIF(IH.EQ.2) THEN | |
30148 | IF(IDU.EQ.1) THEN | |
30149 | GHLL=XMZ/CW*(0.5D0+EI*XW)*COS(ALFA+BETA)- | |
30150 | & XMF**2/XMW*COSA/CBETA | |
30151 | GHRR=-XMZ/CW*(EI*XW)*COS(ALFA+BETA)- | |
30152 | & XMF**2/XMW*COSA/CBETA | |
30153 | IF(IFL.EQ.5) THEN | |
30154 | GHLR=-XMF/2D0/XMW/CBETA*(XMUZ*SINA+ | |
30155 | & ATRIB*COSA) | |
30156 | ELSEIF(IFL.EQ.15) THEN | |
30157 | GHLR=-XMF/2D0/XMW/CBETA*(XMUZ*SINA+ | |
30158 | & ATRIL*COSA) | |
30159 | ELSE | |
30160 | GHLR=0D0 | |
30161 | ENDIF | |
30162 | ELSE | |
30163 | GHLL=-XMZ/CW*(0.5D0-EI*XW)*COS(ALFA+BETA)- | |
30164 | & XMF**2/XMW*SINA/SBETA | |
30165 | GHRR=-XMZ/CW*(EI*XW)*COS(ALFA+BETA)- | |
30166 | & XMF**2/XMW*SINA/SBETA | |
30167 | IF(IFL.EQ.6) THEN | |
30168 | GHLR=-XMF/2D0/XMW/SBETA*(XMUZ*COSA+ | |
30169 | & ATRIT*SINA) | |
30170 | ELSE | |
30171 | GHLR=0D0 | |
30172 | ENDIF | |
30173 | ENDIF | |
30174 | ||
30175 | ELSEIF(IH.EQ.3) THEN | |
30176 | GHLL=0D0 | |
30177 | GHRR=0D0 | |
30178 | GHLR=0D0 | |
30179 | IF(IDU.EQ.1) THEN | |
30180 | IF(IFL.EQ.5) THEN | |
30181 | GHLR=XMF/2D0/XMW*(ATRIB*TANB-XMUZ) | |
30182 | ELSEIF(IFL.EQ.15) THEN | |
30183 | GHLR=XMF/2D0/XMW*(ATRIL*TANB-XMUZ) | |
30184 | ENDIF | |
30185 | ELSE | |
30186 | IF(IFL.EQ.6) THEN | |
30187 | GHLR=XMF/2D0/XMW*(ATRIT/TANB-XMUZ) | |
30188 | ENDIF | |
30189 | ENDIF | |
30190 | ENDIF | |
30191 | IF(IH.EQ.3) GOTO 140 | |
30192 | ||
30193 | AL=SFMIX(IFL,1)**2 | |
30194 | AR=SFMIX(IFL,2)**2 | |
30195 | ALR=SFMIX(IFL,1)*SFMIX(IFL,2) | |
30196 | IF(IFL.LE.6) THEN | |
30197 | CF=3D0 | |
30198 | ELSE | |
30199 | CF=1D0 | |
30200 | ENDIF | |
30201 | ||
30202 | IF(AXMI.GE.2D0*XMJ) THEN | |
30203 | LKNT=LKNT+1 | |
30204 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30205 | & (GHLL*AL+GHRR*AR | |
30206 | & +2D0*GHLR*ALR)**2 | |
30207 | IDLAM(LKNT,1)=IJ | |
30208 | IDLAM(LKNT,2)=-IJ | |
30209 | IDLAM(LKNT,3)=0 | |
30210 | ENDIF | |
30211 | ||
30212 | IF(AXMI.GE.2D0*XMJR) THEN | |
30213 | LKNT=LKNT+1 | |
30214 | AL=SFMIX(IFL,3)**2 | |
30215 | AR=SFMIX(IFL,4)**2 | |
30216 | ALR=SFMIX(IFL,3)*SFMIX(IFL,4) | |
30217 | XMJ=XMJR | |
30218 | XMJ2=XMJ**2 | |
30219 | XL=PYLAMF(XMI2,XMJ2,XMJ2) | |
30220 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30221 | & (GHLL*AL+GHRR*AR | |
30222 | & +2D0*GHLR*ALR)**2 | |
30223 | IDLAM(LKNT,1)=IJ+KSUSY1 | |
30224 | IDLAM(LKNT,2)=-(IJ+KSUSY1) | |
30225 | IDLAM(LKNT,3)=0 | |
30226 | ENDIF | |
30227 | 140 CONTINUE | |
30228 | ||
30229 | IF(AXMI.GE.XMJL+XMJR) THEN | |
30230 | LKNT=LKNT+1 | |
30231 | AL=SFMIX(IFL,1)*SFMIX(IFL,3) | |
30232 | AR=SFMIX(IFL,2)*SFMIX(IFL,4) | |
30233 | ALR=SFMIX(IFL,1)*SFMIX(IFL,4)+SFMIX(IFL,2)*SFMIX(IFL,3) | |
30234 | XMJ=XMJR | |
30235 | XMJ2=XMJ**2 | |
30236 | XL=PYLAMF(XMI2,XMJ2,XMJL**2) | |
30237 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30238 | & (GHLL*AL+GHRR*AR)**2 | |
30239 | IDLAM(LKNT,1)=IJ | |
30240 | IDLAM(LKNT,2)=-(IJ+KSUSY1) | |
30241 | IDLAM(LKNT,3)=0 | |
30242 | LKNT=LKNT+1 | |
30243 | IDLAM(LKNT,1)=-IJ | |
30244 | IDLAM(LKNT,2)=IJ+KSUSY1 | |
30245 | IDLAM(LKNT,3)=0 | |
30246 | XLAM(LKNT)=XLAM(LKNT-1) | |
30247 | ENDIF | |
30248 | ENDIF | |
30249 | 150 CONTINUE | |
30250 | 160 CONTINUE | |
30251 | 170 CONTINUE | |
30252 | ||
30253 | GOTO 230 | |
30254 | 180 CONTINUE | |
30255 | ||
30256 | C...H+ -> CHI+_I + CHI0_J | |
30257 | DO 200 IJ=1,4 | |
30258 | XMJ=SMZ(IJ) | |
30259 | AXMJ=ABS(XMJ) | |
30260 | XMJ2=XMJ**2 | |
30261 | DO 190 IK=1,2 | |
30262 | XMK=SMW(IK) | |
30263 | AXMK=ABS(XMK) | |
30264 | XMK2=XMK**2 | |
30265 | IF(AXMI.GE.AXMJ+AXMK) THEN | |
30266 | LKNT=LKNT+1 | |
30267 | GL=CBETA*(ZMIX(IJ,4)*VMIX(IK,1)+(ZMIX(IJ,2)+ZMIX(IJ,1)* | |
30268 | & TANW)*VMIX(IK,2)/SR2) | |
30269 | GR=SBETA*(ZMIX(IJ,3)*UMIX(IK,1)-(ZMIX(IJ,2)+ZMIX(IJ,1)* | |
30270 | & TANW)*UMIX(IK,2)/SR2) | |
30271 | XLAM(LKNT)=PYH2XX(C1,XMI,XMJ,-XMK,GL,GR) | |
30272 | IDLAM(LKNT,1)=KFNCHI(IJ) | |
30273 | IDLAM(LKNT,2)=KFCCHI(IK) | |
30274 | IDLAM(LKNT,3)=0 | |
30275 | ENDIF | |
30276 | 190 CONTINUE | |
30277 | 200 CONTINUE | |
30278 | ||
30279 | GL=-XMW/SR2*(SIN(2D0*BETA)-PMAS(6,1)**2/TANB/XMW2) | |
30280 | GR=-PMAS(6,1)/SR2/XMW*(XMUZ-ATRIT/TANB) | |
30281 | AL=0D0 | |
30282 | AR=0D0 | |
30283 | CF=3D0 | |
30284 | ||
30285 | C...H+ -> T_1 B_1~ | |
30286 | XM1=PMAS(PYCOMP(KSUSY1+6),1) | |
30287 | XM2=PMAS(PYCOMP(KSUSY1+5),1) | |
30288 | IF(XMI.GE.XM1+XM2) THEN | |
30289 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30290 | LKNT=LKNT+1 | |
30291 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30292 | & (GL*SFMIX(6,1)*SFMIX(5,1)+GR*SFMIX(6,2)*SFMIX(5,1))**2 | |
30293 | IDLAM(LKNT,1)=KSUSY1+6 | |
30294 | IDLAM(LKNT,2)=-(KSUSY1+5) | |
30295 | IDLAM(LKNT,3)=0 | |
30296 | ENDIF | |
30297 | ||
30298 | C...H+ -> T_2 B_1~ | |
30299 | XM1=PMAS(PYCOMP(KSUSY2+6),1) | |
30300 | XM2=PMAS(PYCOMP(KSUSY1+5),1) | |
30301 | IF(XMI.GE.XM1+XM2) THEN | |
30302 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30303 | LKNT=LKNT+1 | |
30304 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30305 | & (GL*SFMIX(6,3)*SFMIX(5,1)+GR*SFMIX(6,4)*SFMIX(5,1))**2 | |
30306 | IDLAM(LKNT,1)=KSUSY2+6 | |
30307 | IDLAM(LKNT,2)=-(KSUSY1+5) | |
30308 | IDLAM(LKNT,3)=0 | |
30309 | ENDIF | |
30310 | ||
30311 | C...H+ -> T_1 B_2~ | |
30312 | XM1=PMAS(PYCOMP(KSUSY1+6),1) | |
30313 | XM2=PMAS(PYCOMP(KSUSY2+5),1) | |
30314 | IF(XMI.GE.XM1+XM2) THEN | |
30315 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30316 | LKNT=LKNT+1 | |
30317 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30318 | & (GL*SFMIX(6,1)*SFMIX(5,3)+GR*SFMIX(6,2)*SFMIX(5,3))**2 | |
30319 | IDLAM(LKNT,1)=KSUSY1+6 | |
30320 | IDLAM(LKNT,2)=-(KSUSY2+5) | |
30321 | IDLAM(LKNT,3)=0 | |
30322 | ENDIF | |
30323 | ||
30324 | C...H+ -> T_2 B_2~ | |
30325 | XM1=PMAS(PYCOMP(KSUSY2+6),1) | |
30326 | XM2=PMAS(PYCOMP(KSUSY2+5),1) | |
30327 | IF(XMI.GE.XM1+XM2) THEN | |
30328 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30329 | LKNT=LKNT+1 | |
30330 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3* | |
30331 | & (GL*SFMIX(6,3)*SFMIX(5,3)+GR*SFMIX(6,4)*SFMIX(5,3))**2 | |
30332 | IDLAM(LKNT,1)=KSUSY2+6 | |
30333 | IDLAM(LKNT,2)=-(KSUSY2+5) | |
30334 | IDLAM(LKNT,3)=0 | |
30335 | ENDIF | |
30336 | ||
30337 | C...H+ -> UL DL~ | |
30338 | GL=-XMW/SR2*SIN(2D0*BETA) | |
30339 | DO 210 IJ=1,3,2 | |
30340 | XM1=PMAS(PYCOMP(KSUSY1+IJ),1) | |
30341 | XM2=PMAS(PYCOMP(KSUSY1+IJ+1),1) | |
30342 | IF(XMI.GE.XM1+XM2) THEN | |
30343 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30344 | LKNT=LKNT+1 | |
30345 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3*(GL)**2 | |
30346 | IDLAM(LKNT,1)=-(KSUSY1+IJ) | |
30347 | IDLAM(LKNT,2)=KSUSY1+IJ+1 | |
30348 | IDLAM(LKNT,3)=0 | |
30349 | ENDIF | |
30350 | 210 CONTINUE | |
30351 | ||
30352 | C...H+ -> EL~ NUL | |
30353 | CF=1D0 | |
30354 | DO 220 IJ=11,13,2 | |
30355 | XM1=PMAS(PYCOMP(KSUSY1+IJ),1) | |
30356 | XM2=PMAS(PYCOMP(KSUSY1+IJ+1),1) | |
30357 | IF(XMI.GE.XM1+XM2) THEN | |
30358 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30359 | LKNT=LKNT+1 | |
30360 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3*(GL)**2 | |
30361 | IDLAM(LKNT,1)=-(KSUSY1+IJ) | |
30362 | IDLAM(LKNT,2)=KSUSY1+IJ+1 | |
30363 | IDLAM(LKNT,3)=0 | |
30364 | ENDIF | |
30365 | 220 CONTINUE | |
30366 | ||
30367 | C...H+ -> TAU1 NUTAUL | |
30368 | XM1=PMAS(PYCOMP(KSUSY1+15),1) | |
30369 | XM2=PMAS(PYCOMP(KSUSY1+16),1) | |
30370 | IF(XMI.GE.XM1+XM2) THEN | |
30371 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30372 | LKNT=LKNT+1 | |
30373 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3*(GL)**2*SFMIX(15,1)**2 | |
30374 | IDLAM(LKNT,1)=-(KSUSY1+15) | |
30375 | IDLAM(LKNT,2)= KSUSY1+16 | |
30376 | IDLAM(LKNT,3)=0 | |
30377 | ENDIF | |
30378 | ||
30379 | C...H+ -> TAU2 NUTAUL | |
30380 | XM1=PMAS(PYCOMP(KSUSY2+15),1) | |
30381 | XM2=PMAS(PYCOMP(KSUSY1+16),1) | |
30382 | IF(XMI.GE.XM1+XM2) THEN | |
30383 | XL=PYLAMF(XMI2,XM1**2,XM2**2) | |
30384 | LKNT=LKNT+1 | |
30385 | XLAM(LKNT)=CF*SQRT(XL)/4D0*C1/XMI3*(GL)**2*SFMIX(15,3)**2 | |
30386 | IDLAM(LKNT,1)=-(KSUSY2+15) | |
30387 | IDLAM(LKNT,2)= KSUSY1+16 | |
30388 | IDLAM(LKNT,3)=0 | |
30389 | ENDIF | |
30390 | ||
30391 | 230 CONTINUE | |
30392 | IKNT=LKNT | |
30393 | XLAM(0)=0D0 | |
30394 | DO 240 I=1,IKNT | |
30395 | IF(XLAM(I).LE.0D0) XLAM(I)=0D0 | |
30396 | XLAM(0)=XLAM(0)+XLAM(I) | |
30397 | 240 CONTINUE | |
30398 | IF(XLAM(0).EQ.0D0) XLAM(0)=1D-6 | |
30399 | ||
30400 | RETURN | |
30401 | END | |
30402 | ||
30403 | C********************************************************************* | |
30404 | ||
30405 | C...PYH2XX | |
30406 | C...Calculates the decay rate for a Higgs to an ino pair. | |
30407 | ||
30408 | FUNCTION PYH2XX(C1,XM1,XM2,XM3,GL,GR) | |
30409 | ||
30410 | C...Double precision and integer declarations. | |
30411 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30412 | INTEGER PYK,PYCHGE,PYCOMP | |
30413 | C...Commonblocks. | |
30414 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
30415 | SAVE /PYDAT1/ | |
30416 | ||
30417 | C...Local variables. | |
30418 | DOUBLE PRECISION PYH2XX,XM1,XM2,XM3,GL,GR | |
30419 | DOUBLE PRECISION XL,PYLAMF,C1 | |
30420 | DOUBLE PRECISION XMI2,XMJ2,XMK2,XMI3 | |
30421 | ||
30422 | XMI2=XM1**2 | |
30423 | XMI3=ABS(XM1**3) | |
30424 | XMJ2=XM2**2 | |
30425 | XMK2=XM3**2 | |
30426 | XL=PYLAMF(XMI2,XMJ2,XMK2) | |
30427 | PYH2XX=C1/4D0/XMI3*SQRT(XL) | |
30428 | &*((GL**2+GR**2)*(XMI2-XMJ2-XMK2)- | |
30429 | &4D0*GL*GR*XM3*XM2) | |
30430 | IF(PYH2XX.LT.0D0) THEN | |
30431 | WRITE(MSTU(11),*) ' NEGATIVE WIDTH IN PYH2XX ' | |
30432 | WRITE(MSTU(11),*) XMI2,XMJ2,XMK2,GL,GR,XM1,XM2,XM3 | |
30433 | STOP | |
30434 | ENDIF | |
30435 | ||
30436 | RETURN | |
30437 | END | |
30438 | ||
30439 | C********************************************************************* | |
30440 | ||
30441 | C...PYGAUS | |
30442 | C...Integration by adaptive Gaussian quadrature. | |
30443 | C...Adapted from the CERNLIB DGAUSS routine by K.S. Kolbig. | |
30444 | ||
30445 | FUNCTION PYGAUS(F, A, B, EPS) | |
30446 | ||
30447 | C...Double precision and integer declarations. | |
30448 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30449 | INTEGER PYK,PYCHGE,PYCOMP | |
30450 | ||
30451 | C...Local declarations. | |
30452 | EXTERNAL F | |
30453 | DOUBLE PRECISION W(12), X(12) | |
30454 | DATA X( 1) /9.6028985649753623D-1/, W( 1) /1.0122853629037626D-1/ | |
30455 | DATA X( 2) /7.9666647741362674D-1/, W( 2) /2.2238103445337447D-1/ | |
30456 | DATA X( 3) /5.2553240991632899D-1/, W( 3) /3.1370664587788729D-1/ | |
30457 | DATA X( 4) /1.8343464249564980D-1/, W( 4) /3.6268378337836198D-1/ | |
30458 | DATA X( 5) /9.8940093499164993D-1/, W( 5) /2.7152459411754095D-2/ | |
30459 | DATA X( 6) /9.4457502307323258D-1/, W( 6) /6.2253523938647893D-2/ | |
30460 | DATA X( 7) /8.6563120238783174D-1/, W( 7) /9.5158511682492785D-2/ | |
30461 | DATA X( 8) /7.5540440835500303D-1/, W( 8) /1.2462897125553387D-1/ | |
30462 | DATA X( 9) /6.1787624440264375D-1/, W( 9) /1.4959598881657673D-1/ | |
30463 | DATA X(10) /4.5801677765722739D-1/, W(10) /1.6915651939500254D-1/ | |
30464 | DATA X(11) /2.8160355077925891D-1/, W(11) /1.8260341504492359D-1/ | |
30465 | DATA X(12) /9.5012509837637440D-2/, W(12) /1.8945061045506850D-1/ | |
30466 | ||
30467 | C...The Gaussian quadrature algorithm. | |
30468 | H = 0D0 | |
30469 | IF(B .EQ. A) GO TO 140 | |
30470 | CONST = 5D-3 / ABS(B-A) | |
30471 | BB = A | |
30472 | 100 CONTINUE | |
30473 | AA = BB | |
30474 | BB = B | |
30475 | 110 CONTINUE | |
30476 | C1 = 0.5D0*(BB+AA) | |
30477 | C2 = 0.5D0*(BB-AA) | |
30478 | S8 = 0D0 | |
30479 | DO 120 I = 1, 4 | |
30480 | U = C2*X(I) | |
30481 | S8 = S8 + W(I) * (F(C1+U) + F(C1-U)) | |
30482 | 120 CONTINUE | |
30483 | S16 = 0D0 | |
30484 | DO 130 I = 5, 12 | |
30485 | U = C2*X(I) | |
30486 | S16 = S16 + W(I) * (F(C1+U) + F(C1-U)) | |
30487 | 130 CONTINUE | |
30488 | S16 = C2*S16 | |
30489 | IF(DABS(S16-C2*S8) .LE. EPS*(1D0+DABS(S16))) THEN | |
30490 | H = H + S16 | |
30491 | IF(BB .NE. B) GO TO 100 | |
30492 | ELSE | |
30493 | BB = C1 | |
30494 | IF(1D0 + CONST*ABS(C2) .NE. 1D0) GO TO 110 | |
30495 | H = 0D0 | |
30496 | CALL PYERRM(18,'(PYGAUS:) too high accuracy required') | |
30497 | GO TO 140 | |
30498 | ENDIF | |
30499 | 140 CONTINUE | |
30500 | PYGAUS = H | |
30501 | ||
30502 | RETURN | |
30503 | END | |
30504 | ||
30505 | C********************************************************************* | |
30506 | ||
30507 | C...PYSIMP | |
30508 | C...Simpson formula for an integral. | |
30509 | ||
30510 | FUNCTION PYSIMP(Y,X0,X1,N) | |
30511 | ||
30512 | C...Double precision and integer declarations. | |
30513 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30514 | INTEGER PYK,PYCHGE,PYCOMP | |
30515 | ||
30516 | C...Local variables. | |
30517 | DOUBLE PRECISION Y,X0,X1,H,S | |
30518 | DIMENSION Y(0:N) | |
30519 | ||
30520 | S=0D0 | |
30521 | H=(X1-X0)/N | |
30522 | DO 100 I=0,N-2,2 | |
30523 | S=S+Y(I)+4D0*Y(I+1)+Y(I+2) | |
30524 | 100 CONTINUE | |
30525 | PYSIMP=S*H/3D0 | |
30526 | ||
30527 | RETURN | |
30528 | END | |
30529 | ||
30530 | C********************************************************************* | |
30531 | ||
30532 | C...PYLAMF | |
30533 | C...The standard lambda function. | |
30534 | ||
30535 | FUNCTION PYLAMF(X,Y,Z) | |
30536 | ||
30537 | C...Double precision and integer declarations. | |
30538 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30539 | INTEGER PYK,PYCHGE,PYCOMP | |
30540 | ||
30541 | C...Local variables. | |
30542 | DOUBLE PRECISION PYLAMF,X,Y,Z | |
30543 | ||
30544 | PYLAMF=(X-(Y+Z))**2-4D0*Y*Z | |
30545 | IF(PYLAMF.LT.0D0) PYLAMF=0D0 | |
30546 | ||
30547 | RETURN | |
30548 | END | |
30549 | ||
30550 | C********************************************************************* | |
30551 | ||
30552 | C...PYTBDY | |
30553 | C...Generates 3-body decays of gauginos. | |
30554 | ||
30555 | SUBROUTINE PYTBDY(XM) | |
30556 | ||
30557 | C...Double precision and integer declarations. | |
30558 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30559 | INTEGER PYK,PYCHGE,PYCOMP | |
30560 | C...Parameter statement to help give large particle numbers. | |
30561 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
30562 | C...Commonblocks. | |
30563 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
30564 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
30565 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
30566 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
30567 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
30568 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYPARS/ | |
30569 | ||
30570 | C...Local variables. | |
30571 | DOUBLE PRECISION XM(5) | |
30572 | DOUBLE PRECISION S12MIN,S12MAX,YJACO1,S23AVE,S23DF1,S23DF2 | |
30573 | DOUBLE PRECISION D1,D2,D3,P1,P2,P3,CTHE1,STHE1,CTHE3,STHE3 | |
30574 | DOUBLE PRECISION CPHI1,SPHI1 | |
30575 | DOUBLE PRECISION S23DEL,EPS | |
30576 | DOUBLE PRECISION GOLDEN,AX,BX,CX,TOL,XMIN,R,C | |
30577 | PARAMETER (R=0.61803399D0,C=1D0-R,TOL=1D-3) | |
30578 | DOUBLE PRECISION F1,F2,X0,X1,X2,X3 | |
30579 | DATA EPS/1D-6/ | |
30580 | ||
30581 | C...GENERATE S12 | |
30582 | S12MIN=(XM(1)+XM(2))**2 | |
30583 | S12MAX=(XM(5)-XM(3))**2 | |
30584 | YJACO1=S12MAX-S12MIN | |
30585 | ||
30586 | C...FIND S12* | |
30587 | AX=S12MIN | |
30588 | CX=S12MAX | |
30589 | BX=S12MIN+0.5D0*YJACO1 | |
30590 | X0=AX | |
30591 | X3=CX | |
30592 | IF(ABS(CX-BX).GT.ABS(BX-AX))THEN | |
30593 | X1=BX | |
30594 | X2=BX+C*(CX-BX) | |
30595 | ELSE | |
30596 | X2=BX | |
30597 | X1=BX-C*(BX-AX) | |
30598 | ENDIF | |
30599 | ||
30600 | C...SOLVE FOR F1 AND F2 | |
30601 | S23DF1=(X1-XM(2)**2-XM(1)**2)**2 | |
30602 | &-(2D0*XM(1)*XM(2))**2 | |
30603 | S23DF2=(X1-XM(3)**2-XM(5)**2)**2 | |
30604 | &-(2D0*XM(3)*XM(5))**2 | |
30605 | S23DF1=S23DF1*EPS | |
30606 | S23DF2=S23DF2*EPS | |
30607 | S23DEL=SQRT(S23DF1*S23DF2)/(2D0*X1) | |
30608 | F1=-2D0*S23DEL/EPS | |
30609 | S23DF1=(X2-XM(2)**2-XM(1)**2)**2 | |
30610 | &-(2D0*XM(1)*XM(2))**2 | |
30611 | S23DF2=(X2-XM(3)**2-XM(5)**2)**2 | |
30612 | &-(2D0*XM(3)*XM(5))**2 | |
30613 | S23DF1=S23DF1*EPS | |
30614 | S23DF2=S23DF2*EPS | |
30615 | S23DEL=SQRT(S23DF1*S23DF2)/(2D0*X2) | |
30616 | F2=-2D0*S23DEL/EPS | |
30617 | ||
30618 | 100 IF(ABS(X3-X0).GT.TOL*(ABS(X1)+ABS(X2)))THEN | |
30619 | IF(F2.LT.F1)THEN | |
30620 | X0=X1 | |
30621 | X1=X2 | |
30622 | X2=R*X1+C*X3 | |
30623 | F1=F2 | |
30624 | S23DF1=(X2-XM(2)**2-XM(1)**2)**2 | |
30625 | & -(2D0*XM(1)*XM(2))**2 | |
30626 | S23DF2=(X2-XM(3)**2-XM(5)**2)**2 | |
30627 | & -(2D0*XM(3)*XM(5))**2 | |
30628 | S23DF1=S23DF1*EPS | |
30629 | S23DF2=S23DF2*EPS | |
30630 | S23DEL=SQRT(S23DF1*S23DF2)/(2D0*X2) | |
30631 | F2=-2D0*S23DEL/EPS | |
30632 | ELSE | |
30633 | X3=X2 | |
30634 | X2=X1 | |
30635 | X1=R*X2+C*X0 | |
30636 | F2=F1 | |
30637 | S23DF1=(X1-XM(2)**2-XM(1)**2)**2 | |
30638 | & -(2D0*XM(1)*XM(2))**2 | |
30639 | S23DF2=(X1-XM(3)**2-XM(5)**2)**2 | |
30640 | & -(2D0*XM(3)*XM(5))**2 | |
30641 | S23DF1=S23DF1*EPS | |
30642 | S23DF2=S23DF2*EPS | |
30643 | S23DEL=SQRT(S23DF1*S23DF2)/(2D0*X1) | |
30644 | F1=-2D0*S23DEL/EPS | |
30645 | ENDIF | |
30646 | GOTO 100 | |
30647 | ENDIF | |
30648 | C...WE WANT THE MAXIMUM, NOT THE MINIMUM | |
30649 | IF(F1.LT.F2)THEN | |
30650 | GOLDEN=-F1 | |
30651 | XMIN=X1 | |
30652 | ELSE | |
30653 | GOLDEN=-F2 | |
30654 | XMIN=X2 | |
30655 | ENDIF | |
30656 | ||
30657 | IKNT=0 | |
30658 | 110 S12=S12MIN+PYR(0)*YJACO1 | |
30659 | IKNT=IKNT+1 | |
30660 | C...GENERATE S23 | |
30661 | S23AVE=XM(2)**2+XM(3)**2-(S12+XM(2)**2-XM(1)**2) | |
30662 | &*(S12+XM(3)**2-XM(5)**2)/(2D0*S12) | |
30663 | S23DF1=(S12-XM(2)**2-XM(1)**2)**2 | |
30664 | &-(2D0*XM(1)*XM(2))**2 | |
30665 | S23DF2=(S12-XM(3)**2-XM(5)**2)**2 | |
30666 | &-(2D0*XM(3)*XM(5))**2 | |
30667 | S23DF1=S23DF1*EPS | |
30668 | S23DF2=S23DF2*EPS | |
30669 | S23DEL=SQRT(S23DF1*S23DF2)/(2D0*S12) | |
30670 | S23DEL=S23DEL/EPS | |
30671 | S23MIN=S23AVE-S23DEL | |
30672 | S23MAX=S23AVE+S23DEL | |
30673 | YJACO2=S23MAX-S23MIN | |
30674 | S23=S23MIN+PYR(0)*YJACO2 | |
30675 | ||
30676 | C...CHECK THE SAMPLING | |
30677 | IF(IKNT.GT.100) THEN | |
30678 | WRITE(MSTU(11),*) ' IKNT > 100 IN PYTBDY ' | |
30679 | GOTO 120 | |
30680 | ENDIF | |
30681 | IF(YJACO2.LT.PYR(0)*GOLDEN) GOTO 110 | |
30682 | 120 D3=(XM(5)**2+XM(3)**2-S12)/(2D0*XM(5)) | |
30683 | D1=(XM(5)**2+XM(1)**2-S23)/(2D0*XM(5)) | |
30684 | D2=XM(5)-D1-D3 | |
30685 | P1=SQRT(D1*D1-XM(1)**2) | |
30686 | P2=SQRT(D2*D2-XM(2)**2) | |
30687 | P3=SQRT(D3*D3-XM(3)**2) | |
30688 | CTHE1=2D0*PYR(0)-1D0 | |
30689 | ANG1=2D0*PYR(0)*PARU(1) | |
30690 | CPHI1=COS(ANG1) | |
30691 | SPHI1=SIN(ANG1) | |
30692 | ARG=1D0-CTHE1**2 | |
30693 | IF(ARG.LT.0D0.AND.ARG.GT.-1D-3) ARG=0D0 | |
30694 | STHE1=SQRT(ARG) | |
30695 | P(N+1,1)=P1*STHE1*CPHI1 | |
30696 | P(N+1,2)=P1*STHE1*SPHI1 | |
30697 | P(N+1,3)=P1*CTHE1 | |
30698 | P(N+1,4)=D1 | |
30699 | ||
30700 | C...GET CPHI3 | |
30701 | ANG3=2D0*PYR(0)*PARU(1) | |
30702 | CPHI3=COS(ANG3) | |
30703 | SPHI3=SIN(ANG3) | |
30704 | CTHE3=(P2**2-P1**2-P3**2)/2D0/P1/P3 | |
30705 | ARG=1D0-CTHE3**2 | |
30706 | IF(ARG.LT.0D0.AND.ARG.GT.-1D-3) ARG=0D0 | |
30707 | STHE3=SQRT(ARG) | |
30708 | P(N+3,1)=-P3*STHE3*CPHI3*CTHE1*CPHI1 | |
30709 | &+P3*STHE3*SPHI3*SPHI1 | |
30710 | &+P3*CTHE3*STHE1*CPHI1 | |
30711 | P(N+3,2)=-P3*STHE3*CPHI3*CTHE1*SPHI1 | |
30712 | &-P3*STHE3*SPHI3*CPHI1 | |
30713 | &+P3*CTHE3*STHE1*SPHI1 | |
30714 | P(N+3,3)=P3*STHE3*CPHI3*STHE1 | |
30715 | &+P3*CTHE3*CTHE1 | |
30716 | P(N+3,4)=D3 | |
30717 | ||
30718 | DO 130 I=1,3 | |
30719 | P(N+2,I)=-P(N+1,I)-P(N+3,I) | |
30720 | 130 CONTINUE | |
30721 | P(N+2,4)=D2 | |
30722 | ||
30723 | RETURN | |
30724 | END | |
30725 | ||
30726 | C********************************************************************* | |
30727 | ||
30728 | C...PY1ENT | |
30729 | C...Stores one parton/particle in commonblock PYJETS. | |
30730 | ||
30731 | SUBROUTINE PY1ENT(IP,KF,PE,THE,PHI) | |
30732 | ||
30733 | C...Double precision and integer declarations. | |
30734 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30735 | INTEGER PYK,PYCHGE,PYCOMP | |
30736 | C...Commonblocks. | |
30737 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
30738 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
30739 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
30740 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
30741 | ||
30742 | C...Standard checks. | |
30743 | MSTU(28)=0 | |
30744 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
30745 | IPA=MAX(1,IABS(IP)) | |
30746 | IF(IPA.GT.MSTU(4)) CALL PYERRM(21, | |
30747 | &'(PY1ENT:) writing outside PYJETS memory') | |
30748 | KC=PYCOMP(KF) | |
30749 | IF(KC.EQ.0) CALL PYERRM(12,'(PY1ENT:) unknown flavour code') | |
30750 | ||
30751 | C...Find mass. Reset K, P and V vectors. | |
30752 | PM=0D0 | |
30753 | IF(MSTU(10).EQ.1) PM=P(IPA,5) | |
30754 | IF(MSTU(10).GE.2) PM=PYMASS(KF) | |
30755 | DO 100 J=1,5 | |
30756 | K(IPA,J)=0 | |
30757 | P(IPA,J)=0D0 | |
30758 | V(IPA,J)=0D0 | |
30759 | 100 CONTINUE | |
30760 | ||
30761 | C...Store parton/particle in K and P vectors. | |
30762 | K(IPA,1)=1 | |
30763 | IF(IP.LT.0) K(IPA,1)=2 | |
30764 | K(IPA,2)=KF | |
30765 | P(IPA,5)=PM | |
30766 | P(IPA,4)=MAX(PE,PM) | |
30767 | PA=SQRT(P(IPA,4)**2-P(IPA,5)**2) | |
30768 | P(IPA,1)=PA*SIN(THE)*COS(PHI) | |
30769 | P(IPA,2)=PA*SIN(THE)*SIN(PHI) | |
30770 | P(IPA,3)=PA*COS(THE) | |
30771 | ||
30772 | C...Set N. Optionally fragment/decay. | |
30773 | N=IPA | |
30774 | IF(IP.EQ.0) CALL PYEXEC | |
30775 | ||
30776 | RETURN | |
30777 | END | |
30778 | ||
30779 | C********************************************************************* | |
30780 | ||
30781 | C...PY2ENT | |
30782 | C...Stores two partons/particles in their CM frame, | |
30783 | C...with the first along the +z axis. | |
30784 | ||
30785 | SUBROUTINE PY2ENT(IP,KF1,KF2,PECM) | |
30786 | ||
30787 | C...Double precision and integer declarations. | |
30788 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30789 | INTEGER PYK,PYCHGE,PYCOMP | |
30790 | C...Commonblocks. | |
30791 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
30792 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
30793 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
30794 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
30795 | ||
30796 | C...Standard checks. | |
30797 | MSTU(28)=0 | |
30798 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
30799 | IPA=MAX(1,IABS(IP)) | |
30800 | IF(IPA.GT.MSTU(4)-1) CALL PYERRM(21, | |
30801 | &'(PY2ENT:) writing outside PYJETS memory') | |
30802 | KC1=PYCOMP(KF1) | |
30803 | KC2=PYCOMP(KF2) | |
30804 | IF(KC1.EQ.0.OR.KC2.EQ.0) CALL PYERRM(12, | |
30805 | &'(PY2ENT:) unknown flavour code') | |
30806 | ||
30807 | C...Find masses. Reset K, P and V vectors. | |
30808 | PM1=0D0 | |
30809 | IF(MSTU(10).EQ.1) PM1=P(IPA,5) | |
30810 | IF(MSTU(10).GE.2) PM1=PYMASS(KF1) | |
30811 | PM2=0D0 | |
30812 | IF(MSTU(10).EQ.1) PM2=P(IPA+1,5) | |
30813 | IF(MSTU(10).GE.2) PM2=PYMASS(KF2) | |
30814 | DO 110 I=IPA,IPA+1 | |
30815 | DO 100 J=1,5 | |
30816 | K(I,J)=0 | |
30817 | P(I,J)=0D0 | |
30818 | V(I,J)=0D0 | |
30819 | 100 CONTINUE | |
30820 | 110 CONTINUE | |
30821 | ||
30822 | C...Check flavours. | |
30823 | KQ1=KCHG(KC1,2)*ISIGN(1,KF1) | |
30824 | KQ2=KCHG(KC2,2)*ISIGN(1,KF2) | |
30825 | IF(MSTU(19).EQ.1) THEN | |
30826 | MSTU(19)=0 | |
30827 | ELSE | |
30828 | IF(KQ1+KQ2.NE.0.AND.KQ1+KQ2.NE.4) CALL PYERRM(2, | |
30829 | & '(PY2ENT:) unphysical flavour combination') | |
30830 | ENDIF | |
30831 | K(IPA,2)=KF1 | |
30832 | K(IPA+1,2)=KF2 | |
30833 | ||
30834 | C...Store partons/particles in K vectors for normal case. | |
30835 | IF(IP.GE.0) THEN | |
30836 | K(IPA,1)=1 | |
30837 | IF(KQ1.NE.0.AND.KQ2.NE.0) K(IPA,1)=2 | |
30838 | K(IPA+1,1)=1 | |
30839 | ||
30840 | C...Store partons in K vectors for parton shower evolution. | |
30841 | ELSE | |
30842 | K(IPA,1)=3 | |
30843 | K(IPA+1,1)=3 | |
30844 | K(IPA,4)=MSTU(5)*(IPA+1) | |
30845 | K(IPA,5)=K(IPA,4) | |
30846 | K(IPA+1,4)=MSTU(5)*IPA | |
30847 | K(IPA+1,5)=K(IPA+1,4) | |
30848 | ENDIF | |
30849 | ||
30850 | C...Check kinematics and store partons/particles in P vectors. | |
30851 | IF(PECM.LE.PM1+PM2) CALL PYERRM(13, | |
30852 | &'(PY2ENT:) energy smaller than sum of masses') | |
30853 | PA=SQRT(MAX(0D0,(PECM**2-PM1**2-PM2**2)**2-(2D0*PM1*PM2)**2))/ | |
30854 | &(2D0*PECM) | |
30855 | P(IPA,3)=PA | |
30856 | P(IPA,4)=SQRT(PM1**2+PA**2) | |
30857 | P(IPA,5)=PM1 | |
30858 | P(IPA+1,3)=-PA | |
30859 | P(IPA+1,4)=SQRT(PM2**2+PA**2) | |
30860 | P(IPA+1,5)=PM2 | |
30861 | ||
30862 | C...Set N. Optionally fragment/decay. | |
30863 | N=IPA+1 | |
30864 | IF(IP.EQ.0) CALL PYEXEC | |
30865 | ||
30866 | RETURN | |
30867 | END | |
30868 | ||
30869 | C********************************************************************* | |
30870 | ||
30871 | C...PY3ENT | |
30872 | C...Stores three partons or particles in their CM frame, | |
30873 | C...with the first along the +z axis and the third in the (x,z) | |
30874 | C...plane with x > 0. | |
30875 | ||
30876 | SUBROUTINE PY3ENT(IP,KF1,KF2,KF3,PECM,X1,X3) | |
30877 | ||
30878 | C...Double precision and integer declarations. | |
30879 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
30880 | INTEGER PYK,PYCHGE,PYCOMP | |
30881 | C...Commonblocks. | |
30882 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
30883 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
30884 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
30885 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
30886 | ||
30887 | C...Standard checks. | |
30888 | MSTU(28)=0 | |
30889 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
30890 | IPA=MAX(1,IABS(IP)) | |
30891 | IF(IPA.GT.MSTU(4)-2) CALL PYERRM(21, | |
30892 | &'(PY3ENT:) writing outside PYJETS memory') | |
30893 | KC1=PYCOMP(KF1) | |
30894 | KC2=PYCOMP(KF2) | |
30895 | KC3=PYCOMP(KF3) | |
30896 | IF(KC1.EQ.0.OR.KC2.EQ.0.OR.KC3.EQ.0) CALL PYERRM(12, | |
30897 | &'(PY3ENT:) unknown flavour code') | |
30898 | ||
30899 | C...Find masses. Reset K, P and V vectors. | |
30900 | PM1=0D0 | |
30901 | IF(MSTU(10).EQ.1) PM1=P(IPA,5) | |
30902 | IF(MSTU(10).GE.2) PM1=PYMASS(KF1) | |
30903 | PM2=0D0 | |
30904 | IF(MSTU(10).EQ.1) PM2=P(IPA+1,5) | |
30905 | IF(MSTU(10).GE.2) PM2=PYMASS(KF2) | |
30906 | PM3=0D0 | |
30907 | IF(MSTU(10).EQ.1) PM3=P(IPA+2,5) | |
30908 | IF(MSTU(10).GE.2) PM3=PYMASS(KF3) | |
30909 | DO 110 I=IPA,IPA+2 | |
30910 | DO 100 J=1,5 | |
30911 | K(I,J)=0 | |
30912 | P(I,J)=0D0 | |
30913 | V(I,J)=0D0 | |
30914 | 100 CONTINUE | |
30915 | 110 CONTINUE | |
30916 | ||
30917 | C...Check flavours. | |
30918 | KQ1=KCHG(KC1,2)*ISIGN(1,KF1) | |
30919 | KQ2=KCHG(KC2,2)*ISIGN(1,KF2) | |
30920 | KQ3=KCHG(KC3,2)*ISIGN(1,KF3) | |
30921 | IF(MSTU(19).EQ.1) THEN | |
30922 | MSTU(19)=0 | |
30923 | ELSEIF(KQ1.EQ.0.AND.KQ2.EQ.0.AND.KQ3.EQ.0) THEN | |
30924 | ELSEIF(KQ1.NE.0.AND.KQ2.EQ.2.AND.(KQ1+KQ3.EQ.0.OR. | |
30925 | & KQ1+KQ3.EQ.4)) THEN | |
30926 | ELSE | |
30927 | CALL PYERRM(2,'(PY3ENT:) unphysical flavour combination') | |
30928 | ENDIF | |
30929 | K(IPA,2)=KF1 | |
30930 | K(IPA+1,2)=KF2 | |
30931 | K(IPA+2,2)=KF3 | |
30932 | ||
30933 | C...Store partons/particles in K vectors for normal case. | |
30934 | IF(IP.GE.0) THEN | |
30935 | K(IPA,1)=1 | |
30936 | IF(KQ1.NE.0.AND.(KQ2.NE.0.OR.KQ3.NE.0)) K(IPA,1)=2 | |
30937 | K(IPA+1,1)=1 | |
30938 | IF(KQ2.NE.0.AND.KQ3.NE.0) K(IPA+1,1)=2 | |
30939 | K(IPA+2,1)=1 | |
30940 | ||
30941 | C...Store partons in K vectors for parton shower evolution. | |
30942 | ELSE | |
30943 | K(IPA,1)=3 | |
30944 | K(IPA+1,1)=3 | |
30945 | K(IPA+2,1)=3 | |
30946 | KCS=4 | |
30947 | IF(KQ1.EQ.-1) KCS=5 | |
30948 | K(IPA,KCS)=MSTU(5)*(IPA+1) | |
30949 | K(IPA,9-KCS)=MSTU(5)*(IPA+2) | |
30950 | K(IPA+1,KCS)=MSTU(5)*(IPA+2) | |
30951 | K(IPA+1,9-KCS)=MSTU(5)*IPA | |
30952 | K(IPA+2,KCS)=MSTU(5)*IPA | |
30953 | K(IPA+2,9-KCS)=MSTU(5)*(IPA+1) | |
30954 | ENDIF | |
30955 | ||
30956 | C...Check kinematics. | |
30957 | MKERR=0 | |
30958 | IF(0.5D0*X1*PECM.LE.PM1.OR.0.5D0*(2D0-X1-X3)*PECM.LE.PM2.OR. | |
30959 | &0.5D0*X3*PECM.LE.PM3) MKERR=1 | |
30960 | PA1=SQRT(MAX(1D-10,(0.5D0*X1*PECM)**2-PM1**2)) | |
30961 | PA2=SQRT(MAX(1D-10,(0.5D0*(2D0-X1-X3)*PECM)**2-PM2**2)) | |
30962 | PA3=SQRT(MAX(1D-10,(0.5D0*X3*PECM)**2-PM3**2)) | |
30963 | CTHE2=(PA3**2-PA1**2-PA2**2)/(2D0*PA1*PA2) | |
30964 | CTHE3=(PA2**2-PA1**2-PA3**2)/(2D0*PA1*PA3) | |
30965 | IF(ABS(CTHE2).GE.1.001D0.OR.ABS(CTHE3).GE.1.001D0) MKERR=1 | |
30966 | CTHE3=MAX(-1D0,MIN(1D0,CTHE3)) | |
30967 | IF(MKERR.NE.0) CALL PYERRM(13, | |
30968 | &'(PY3ENT:) unphysical kinematical variable setup') | |
30969 | ||
30970 | C...Store partons/particles in P vectors. | |
30971 | P(IPA,3)=PA1 | |
30972 | P(IPA,4)=SQRT(PA1**2+PM1**2) | |
30973 | P(IPA,5)=PM1 | |
30974 | P(IPA+2,1)=PA3*SQRT(1D0-CTHE3**2) | |
30975 | P(IPA+2,3)=PA3*CTHE3 | |
30976 | P(IPA+2,4)=SQRT(PA3**2+PM3**2) | |
30977 | P(IPA+2,5)=PM3 | |
30978 | P(IPA+1,1)=-P(IPA+2,1) | |
30979 | P(IPA+1,3)=-P(IPA,3)-P(IPA+2,3) | |
30980 | P(IPA+1,4)=SQRT(P(IPA+1,1)**2+P(IPA+1,3)**2+PM2**2) | |
30981 | P(IPA+1,5)=PM2 | |
30982 | ||
30983 | C...Set N. Optionally fragment/decay. | |
30984 | N=IPA+2 | |
30985 | IF(IP.EQ.0) CALL PYEXEC | |
30986 | ||
30987 | RETURN | |
30988 | END | |
30989 | ||
30990 | C********************************************************************* | |
30991 | ||
30992 | C...PY4ENT | |
30993 | C...Stores four partons or particles in their CM frame, with | |
30994 | C...the first along the +z axis, the last in the xz plane with x > 0 | |
30995 | C...and the second having y < 0 and y > 0 with equal probability. | |
30996 | ||
30997 | SUBROUTINE PY4ENT(IP,KF1,KF2,KF3,KF4,PECM,X1,X2,X4,X12,X14) | |
30998 | ||
30999 | C...Double precision and integer declarations. | |
31000 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
31001 | INTEGER PYK,PYCHGE,PYCOMP | |
31002 | C...Commonblocks. | |
31003 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
31004 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
31005 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
31006 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
31007 | ||
31008 | C...Standard checks. | |
31009 | MSTU(28)=0 | |
31010 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
31011 | IPA=MAX(1,IABS(IP)) | |
31012 | IF(IPA.GT.MSTU(4)-3) CALL PYERRM(21, | |
31013 | &'(PY4ENT:) writing outside PYJETS momory') | |
31014 | KC1=PYCOMP(KF1) | |
31015 | KC2=PYCOMP(KF2) | |
31016 | KC3=PYCOMP(KF3) | |
31017 | KC4=PYCOMP(KF4) | |
31018 | IF(KC1.EQ.0.OR.KC2.EQ.0.OR.KC3.EQ.0.OR.KC4.EQ.0) CALL PYERRM(12, | |
31019 | &'(PY4ENT:) unknown flavour code') | |
31020 | ||
31021 | C...Find masses. Reset K, P and V vectors. | |
31022 | PM1=0D0 | |
31023 | IF(MSTU(10).EQ.1) PM1=P(IPA,5) | |
31024 | IF(MSTU(10).GE.2) PM1=PYMASS(KF1) | |
31025 | PM2=0D0 | |
31026 | IF(MSTU(10).EQ.1) PM2=P(IPA+1,5) | |
31027 | IF(MSTU(10).GE.2) PM2=PYMASS(KF2) | |
31028 | PM3=0D0 | |
31029 | IF(MSTU(10).EQ.1) PM3=P(IPA+2,5) | |
31030 | IF(MSTU(10).GE.2) PM3=PYMASS(KF3) | |
31031 | PM4=0D0 | |
31032 | IF(MSTU(10).EQ.1) PM4=P(IPA+3,5) | |
31033 | IF(MSTU(10).GE.2) PM4=PYMASS(KF4) | |
31034 | DO 110 I=IPA,IPA+3 | |
31035 | DO 100 J=1,5 | |
31036 | K(I,J)=0 | |
31037 | P(I,J)=0D0 | |
31038 | V(I,J)=0D0 | |
31039 | 100 CONTINUE | |
31040 | 110 CONTINUE | |
31041 | ||
31042 | C...Check flavours. | |
31043 | KQ1=KCHG(KC1,2)*ISIGN(1,KF1) | |
31044 | KQ2=KCHG(KC2,2)*ISIGN(1,KF2) | |
31045 | KQ3=KCHG(KC3,2)*ISIGN(1,KF3) | |
31046 | KQ4=KCHG(KC4,2)*ISIGN(1,KF4) | |
31047 | IF(MSTU(19).EQ.1) THEN | |
31048 | MSTU(19)=0 | |
31049 | ELSEIF(KQ1.EQ.0.AND.KQ2.EQ.0.AND.KQ3.EQ.0.AND.KQ4.EQ.0) THEN | |
31050 | ELSEIF(KQ1.NE.0.AND.KQ2.EQ.2.AND.KQ3.EQ.2.AND.(KQ1+KQ4.EQ.0.OR. | |
31051 | & KQ1+KQ4.EQ.4)) THEN | |
31052 | ELSEIF(KQ1.NE.0.AND.KQ1+KQ2.EQ.0.AND.KQ3.NE.0.AND.KQ3+KQ4.EQ.0D0) | |
31053 | & THEN | |
31054 | ELSE | |
31055 | CALL PYERRM(2,'(PY4ENT:) unphysical flavour combination') | |
31056 | ENDIF | |
31057 | K(IPA,2)=KF1 | |
31058 | K(IPA+1,2)=KF2 | |
31059 | K(IPA+2,2)=KF3 | |
31060 | K(IPA+3,2)=KF4 | |
31061 | ||
31062 | C...Store partons/particles in K vectors for normal case. | |
31063 | IF(IP.GE.0) THEN | |
31064 | K(IPA,1)=1 | |
31065 | IF(KQ1.NE.0.AND.(KQ2.NE.0.OR.KQ3.NE.0.OR.KQ4.NE.0)) K(IPA,1)=2 | |
31066 | K(IPA+1,1)=1 | |
31067 | IF(KQ2.NE.0.AND.KQ1+KQ2.NE.0.AND.(KQ3.NE.0.OR.KQ4.NE.0)) | |
31068 | & K(IPA+1,1)=2 | |
31069 | K(IPA+2,1)=1 | |
31070 | IF(KQ3.NE.0.AND.KQ4.NE.0) K(IPA+2,1)=2 | |
31071 | K(IPA+3,1)=1 | |
31072 | ||
31073 | C...Store partons for parton shower evolution from q-g-g-qbar or | |
31074 | C...g-g-g-g event. | |
31075 | ELSEIF(KQ1+KQ2.NE.0) THEN | |
31076 | K(IPA,1)=3 | |
31077 | K(IPA+1,1)=3 | |
31078 | K(IPA+2,1)=3 | |
31079 | K(IPA+3,1)=3 | |
31080 | KCS=4 | |
31081 | IF(KQ1.EQ.-1) KCS=5 | |
31082 | K(IPA,KCS)=MSTU(5)*(IPA+1) | |
31083 | K(IPA,9-KCS)=MSTU(5)*(IPA+3) | |
31084 | K(IPA+1,KCS)=MSTU(5)*(IPA+2) | |
31085 | K(IPA+1,9-KCS)=MSTU(5)*IPA | |
31086 | K(IPA+2,KCS)=MSTU(5)*(IPA+3) | |
31087 | K(IPA+2,9-KCS)=MSTU(5)*(IPA+1) | |
31088 | K(IPA+3,KCS)=MSTU(5)*IPA | |
31089 | K(IPA+3,9-KCS)=MSTU(5)*(IPA+2) | |
31090 | ||
31091 | C...Store partons for parton shower evolution from q-qbar-q-qbar event. | |
31092 | ELSE | |
31093 | K(IPA,1)=3 | |
31094 | K(IPA+1,1)=3 | |
31095 | K(IPA+2,1)=3 | |
31096 | K(IPA+3,1)=3 | |
31097 | K(IPA,4)=MSTU(5)*(IPA+1) | |
31098 | K(IPA,5)=K(IPA,4) | |
31099 | K(IPA+1,4)=MSTU(5)*IPA | |
31100 | K(IPA+1,5)=K(IPA+1,4) | |
31101 | K(IPA+2,4)=MSTU(5)*(IPA+3) | |
31102 | K(IPA+2,5)=K(IPA+2,4) | |
31103 | K(IPA+3,4)=MSTU(5)*(IPA+2) | |
31104 | K(IPA+3,5)=K(IPA+3,4) | |
31105 | ENDIF | |
31106 | ||
31107 | C...Check kinematics. | |
31108 | MKERR=0 | |
31109 | IF(0.5D0*X1*PECM.LE.PM1.OR.0.5D0*X2*PECM.LE.PM2.OR. | |
31110 | &0.5D0*(2D0-X1-X2-X4)*PECM.LE.PM3.OR.0.5D0*X4*PECM.LE.PM4) | |
31111 | &MKERR=1 | |
31112 | PA1=SQRT(MAX(1D-10,(0.5D0*X1*PECM)**2-PM1**2)) | |
31113 | PA2=SQRT(MAX(1D-10,(0.5D0*X2*PECM)**2-PM2**2)) | |
31114 | PA4=SQRT(MAX(1D-10,(0.5D0*X4*PECM)**2-PM4**2)) | |
31115 | X24=X1+X2+X4-1D0-X12-X14+(PM3**2-PM1**2-PM2**2-PM4**2)/PECM**2 | |
31116 | CTHE4=(X1*X4-2D0*X14)*PECM**2/(4D0*PA1*PA4) | |
31117 | IF(ABS(CTHE4).GE.1.002D0) MKERR=1 | |
31118 | CTHE4=MAX(-1D0,MIN(1D0,CTHE4)) | |
31119 | STHE4=SQRT(1D0-CTHE4**2) | |
31120 | CTHE2=(X1*X2-2D0*X12)*PECM**2/(4D0*PA1*PA2) | |
31121 | IF(ABS(CTHE2).GE.1.002D0) MKERR=1 | |
31122 | CTHE2=MAX(-1D0,MIN(1D0,CTHE2)) | |
31123 | STHE2=SQRT(1D0-CTHE2**2) | |
31124 | CPHI2=((X2*X4-2D0*X24)*PECM**2-4D0*PA2*CTHE2*PA4*CTHE4)/ | |
31125 | &MAX(1D-8*PECM**2,4D0*PA2*STHE2*PA4*STHE4) | |
31126 | IF(ABS(CPHI2).GE.1.05D0) MKERR=1 | |
31127 | CPHI2=MAX(-1D0,MIN(1D0,CPHI2)) | |
31128 | IF(MKERR.EQ.1) CALL PYERRM(13, | |
31129 | &'(PY4ENT:) unphysical kinematical variable setup') | |
31130 | ||
31131 | C...Store partons/particles in P vectors. | |
31132 | P(IPA,3)=PA1 | |
31133 | P(IPA,4)=SQRT(PA1**2+PM1**2) | |
31134 | P(IPA,5)=PM1 | |
31135 | P(IPA+3,1)=PA4*STHE4 | |
31136 | P(IPA+3,3)=PA4*CTHE4 | |
31137 | P(IPA+3,4)=SQRT(PA4**2+PM4**2) | |
31138 | P(IPA+3,5)=PM4 | |
31139 | P(IPA+1,1)=PA2*STHE2*CPHI2 | |
31140 | P(IPA+1,2)=PA2*STHE2*SQRT(1D0-CPHI2**2)*(-1D0)**INT(PYR(0)+0.5D0) | |
31141 | P(IPA+1,3)=PA2*CTHE2 | |
31142 | P(IPA+1,4)=SQRT(PA2**2+PM2**2) | |
31143 | P(IPA+1,5)=PM2 | |
31144 | P(IPA+2,1)=-P(IPA+1,1)-P(IPA+3,1) | |
31145 | P(IPA+2,2)=-P(IPA+1,2) | |
31146 | P(IPA+2,3)=-P(IPA,3)-P(IPA+1,3)-P(IPA+3,3) | |
31147 | P(IPA+2,4)=SQRT(P(IPA+2,1)**2+P(IPA+2,2)**2+P(IPA+2,3)**2+PM3**2) | |
31148 | P(IPA+2,5)=PM3 | |
31149 | ||
31150 | C...Set N. Optionally fragment/decay. | |
31151 | N=IPA+3 | |
31152 | IF(IP.EQ.0) CALL PYEXEC | |
31153 | ||
31154 | RETURN | |
31155 | END | |
31156 | ||
31157 | C********************************************************************* | |
31158 | ||
31159 | C...PYJOIN | |
31160 | C...Connects a sequence of partons with colour flow indices, | |
31161 | C...as required for subsequent shower evolution (or other operations). | |
31162 | ||
31163 | SUBROUTINE PYJOIN(NJOIN,IJOIN) | |
31164 | ||
31165 | C...Double precision and integer declarations. | |
31166 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
31167 | INTEGER PYK,PYCHGE,PYCOMP | |
31168 | C...Commonblocks. | |
31169 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
31170 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
31171 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
31172 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
31173 | C...Local array. | |
31174 | DIMENSION IJOIN(*) | |
31175 | ||
31176 | C...Check that partons are of right types to be connected. | |
31177 | IF(NJOIN.LT.2) GOTO 120 | |
31178 | KQSUM=0 | |
31179 | DO 100 IJN=1,NJOIN | |
31180 | I=IJOIN(IJN) | |
31181 | IF(I.LE.0.OR.I.GT.N) GOTO 120 | |
31182 | IF(K(I,1).LT.1.OR.K(I,1).GT.3) GOTO 120 | |
31183 | KC=PYCOMP(K(I,2)) | |
31184 | IF(KC.EQ.0) GOTO 120 | |
31185 | KQ=KCHG(KC,2)*ISIGN(1,K(I,2)) | |
31186 | IF(KQ.EQ.0) GOTO 120 | |
31187 | IF(IJN.NE.1.AND.IJN.NE.NJOIN.AND.KQ.NE.2) GOTO 120 | |
31188 | IF(KQ.NE.2) KQSUM=KQSUM+KQ | |
31189 | IF(IJN.EQ.1) KQS=KQ | |
31190 | 100 CONTINUE | |
31191 | IF(KQSUM.NE.0) GOTO 120 | |
31192 | ||
31193 | C...Connect the partons sequentially (closing for gluon loop). | |
31194 | KCS=(9-KQS)/2 | |
31195 | IF(KQS.EQ.2) KCS=INT(4.5D0+PYR(0)) | |
31196 | DO 110 IJN=1,NJOIN | |
31197 | I=IJOIN(IJN) | |
31198 | K(I,1)=3 | |
31199 | IF(IJN.NE.1) IP=IJOIN(IJN-1) | |
31200 | IF(IJN.EQ.1) IP=IJOIN(NJOIN) | |
31201 | IF(IJN.NE.NJOIN) IN=IJOIN(IJN+1) | |
31202 | IF(IJN.EQ.NJOIN) IN=IJOIN(1) | |
31203 | K(I,KCS)=MSTU(5)*IN | |
31204 | K(I,9-KCS)=MSTU(5)*IP | |
31205 | IF(IJN.EQ.1.AND.KQS.NE.2) K(I,9-KCS)=0 | |
31206 | IF(IJN.EQ.NJOIN.AND.KQS.NE.2) K(I,KCS)=0 | |
31207 | 110 CONTINUE | |
31208 | ||
31209 | C...Error exit: no action taken. | |
31210 | RETURN | |
31211 | 120 CALL PYERRM(12, | |
31212 | &'(PYJOIN:) given entries can not be joined by one string') | |
31213 | ||
31214 | RETURN | |
31215 | END | |
31216 | ||
31217 | C********************************************************************* | |
31218 | ||
31219 | C...PYGIVE | |
31220 | C...Sets values of commonblock variables. | |
31221 | ||
31222 | SUBROUTINE PYGIVE(CHIN) | |
31223 | ||
31224 | C...Double precision and integer declarations. | |
31225 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
31226 | INTEGER PYK,PYCHGE,PYCOMP | |
31227 | C...Commonblocks. | |
31228 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
31229 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
31230 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
31231 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
31232 | COMMON/PYDAT4/CHAF(500,2) | |
31233 | CHARACTER CHAF*16 | |
31234 | COMMON/PYDATR/MRPY(6),RRPY(100) | |
31235 | COMMON/PYSUBS/MSEL,MSELPD,MSUB(500),KFIN(2,-40:40),CKIN(200) | |
31236 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
31237 | COMMON/PYINT1/MINT(400),VINT(400) | |
31238 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
31239 | COMMON/PYINT3/XSFX(2,-40:40),ISIG(1000,3),SIGH(1000) | |
31240 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
31241 | COMMON/PYINT5/NGENPD,NGEN(0:500,3),XSEC(0:500,3) | |
31242 | COMMON/PYINT6/PROC(0:500) | |
31243 | CHARACTER PROC*28 | |
31244 | COMMON/PYINT7/SIGT(0:6,0:6,0:5) | |
31245 | COMMON/PYINT8/XPVMD(-6:6),XPANL(-6:6),XPANH(-6:6),XPBEH(-6:6), | |
31246 | &XPDIR(-6:6) | |
31247 | COMMON/PYMSSM/IMSS(0:99),RMSS(0:99) | |
31248 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYDAT4/,/PYDATR/, | |
31249 | &/PYSUBS/,/PYPARS/,/PYINT1/,/PYINT2/,/PYINT3/,/PYINT4/, | |
31250 | &/PYINT5/,/PYINT6/,/PYINT7/,/PYINT8/,/PYMSSM/ | |
31251 | C...Local arrays and character variables. | |
31252 | CHARACTER CHIN*(*),CHFIX*104,CHBIT*104,CHOLD*8,CHNEW*8,CHOLD2*28, | |
31253 | &CHNEW2*28,CHNAM*6,CHVAR(49)*6,CHALP(2)*26,CHIND*8,CHINI*10, | |
31254 | &CHINR*16 | |
31255 | DIMENSION MSVAR(49,8) | |
31256 | ||
31257 | C...For each variable to be translated give: name, | |
31258 | C...integer/real/character, no. of indices, lower&upper index bounds. | |
31259 | DATA CHVAR/'N','K','P','V','MSTU','PARU','MSTJ','PARJ','KCHG', | |
31260 | &'PMAS','PARF','VCKM','MDCY','MDME','BRAT','KFDP','CHAF','MRPY', | |
31261 | &'RRPY','MSEL','MSUB','KFIN','CKIN','MSTP','PARP','MSTI','PARI', | |
31262 | &'MINT','VINT','ISET','KFPR','COEF','ICOL','XSFX','ISIG','SIGH', | |
31263 | &'MWID','WIDS','NGEN','XSEC','PROC','SIGT','XPVMD','XPANL', | |
31264 | &'XPANH','XPBEH','XPDIR','IMSS','RMSS'/ | |
31265 | DATA ((MSVAR(I,J),J=1,8),I=1,49)/ 1,7*0, 1,2,1,4000,1,5,2*0, | |
31266 | &2,2,1,4000,1,5,2*0, 2,2,1,4000,1,5,2*0, 1,1,1,200,4*0, | |
31267 | &2,1,1,200,4*0, 1,1,1,200,4*0, 2,1,1,200,4*0, | |
31268 | &1,2,1,500,1,4,2*0, 2,2,1,500,1,4,2*0, 2,1,1,2000,4*0, | |
31269 | &2,2,1,4,1,4,2*0, 1,2,1,500,1,3,2*0, 1,2,1,4000,1,2,2*0, | |
31270 | &2,1,1,4000,4*0, 1,2,1,4000,1,5,2*0, 3,2,1,500,1,2,2*0, | |
31271 | &1,1,1,6,4*0, 2,1,1,100,4*0, | |
31272 | &1,7*0, 1,1,1,500,4*0, 1,2,1,2,-40,40,2*0, 2,1,1,200,4*0, | |
31273 | &1,1,1,200,4*0, 2,1,1,200,4*0, 1,1,1,200,4*0, 2,1,1,200,4*0, | |
31274 | &1,1,1,400,4*0, 2,1,1,400,4*0, 1,1,1,500,4*0, | |
31275 | &1,2,1,500,1,2,2*0, 2,2,1,500,1,20,2*0, 1,3,1,40,1,4,1,2, | |
31276 | &2,2,1,2,-40,40,2*0, 1,2,1,1000,1,3,2*0, 2,1,1,1000,4*0, | |
31277 | &1,1,1,500,4*0, 2,2,1,500,1,5,2*0, 1,2,0,500,1,3,2*0, | |
31278 | &2,2,0,500,1,3,2*0, 4,1,0,500,4*0, 2,3,0,6,0,6,0,5, | |
31279 | &2,1,-6,6,4*0, 2,1,-6,6,4*0, 2,1,-6,6,4*0, | |
31280 | &2,1,-6,6,4*0, 2,1,-6,6,4*0, 1,1,0,99,4*0, 2,1,0,99,4*0/ | |
31281 | DATA CHALP/'abcdefghijklmnopqrstuvwxyz', | |
31282 | &'ABCDEFGHIJKLMNOPQRSTUVWXYZ'/ | |
31283 | ||
31284 | C...Length of character variable. Subdivide it into instructions. | |
31285 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
31286 | CHBIT=CHIN//' ' | |
31287 | LBIT=101 | |
31288 | 100 LBIT=LBIT-1 | |
31289 | IF(CHBIT(LBIT:LBIT).EQ.' ') GOTO 100 | |
31290 | LTOT=0 | |
31291 | DO 110 LCOM=1,LBIT | |
31292 | IF(CHBIT(LCOM:LCOM).EQ.' ') GOTO 110 | |
31293 | LTOT=LTOT+1 | |
31294 | CHFIX(LTOT:LTOT)=CHBIT(LCOM:LCOM) | |
31295 | 110 CONTINUE | |
31296 | LLOW=0 | |
31297 | 120 LHIG=LLOW+1 | |
31298 | 130 LHIG=LHIG+1 | |
31299 | IF(LHIG.LE.LTOT.AND.CHFIX(LHIG:LHIG).NE.';') GOTO 130 | |
31300 | LBIT=LHIG-LLOW-1 | |
31301 | CHBIT(1:LBIT)=CHFIX(LLOW+1:LHIG-1) | |
31302 | ||
31303 | C...Identify commonblock variable. | |
31304 | LNAM=1 | |
31305 | 140 LNAM=LNAM+1 | |
31306 | IF(CHBIT(LNAM:LNAM).NE.'('.AND.CHBIT(LNAM:LNAM).NE.'='.AND. | |
31307 | &LNAM.LE.6) GOTO 140 | |
31308 | CHNAM=CHBIT(1:LNAM-1)//' ' | |
31309 | DO 160 LCOM=1,LNAM-1 | |
31310 | DO 150 LALP=1,26 | |
31311 | IF(CHNAM(LCOM:LCOM).EQ.CHALP(1)(LALP:LALP)) CHNAM(LCOM:LCOM)= | |
31312 | & CHALP(2)(LALP:LALP) | |
31313 | 150 CONTINUE | |
31314 | 160 CONTINUE | |
31315 | IVAR=0 | |
31316 | DO 170 IV=1,49 | |
31317 | IF(CHNAM.EQ.CHVAR(IV)) IVAR=IV | |
31318 | 170 CONTINUE | |
31319 | IF(IVAR.EQ.0) THEN | |
31320 | CALL PYERRM(18,'(PYGIVE:) do not recognize variable '//CHNAM) | |
31321 | LLOW=LHIG | |
31322 | IF(LLOW.LT.LTOT) GOTO 120 | |
31323 | RETURN | |
31324 | ENDIF | |
31325 | ||
31326 | C...Identify any indices. | |
31327 | I1=0 | |
31328 | I2=0 | |
31329 | I3=0 | |
31330 | NINDX=0 | |
31331 | IF(CHBIT(LNAM:LNAM).EQ.'(') THEN | |
31332 | LIND=LNAM | |
31333 | 180 LIND=LIND+1 | |
31334 | IF(CHBIT(LIND:LIND).NE.')'.AND.CHBIT(LIND:LIND).NE.',') GOTO 180 | |
31335 | CHIND=' ' | |
31336 | IF((CHBIT(LNAM+1:LNAM+1).EQ.'C'.OR.CHBIT(LNAM+1:LNAM+1).EQ.'c') | |
31337 | & .AND.(IVAR.EQ.9.OR.IVAR.EQ.10.OR.IVAR.EQ.13.OR.IVAR.EQ.17)) | |
31338 | & THEN | |
31339 | CHIND(LNAM-LIND+11:8)=CHBIT(LNAM+2:LIND-1) | |
31340 | READ(CHIND,'(I8)') KF | |
31341 | I1=PYCOMP(KF) | |
31342 | ELSEIF(CHBIT(LNAM+1:LNAM+1).EQ.'C'.OR.CHBIT(LNAM+1:LNAM+1).EQ. | |
31343 | & 'c') THEN | |
31344 | CALL PYERRM(18,'(PYGIVE:) not allowed to use C index for '// | |
31345 | & CHNAM) | |
31346 | LLOW=LHIG | |
31347 | IF(LLOW.LT.LTOT) GOTO 120 | |
31348 | RETURN | |
31349 | ELSE | |
31350 | CHIND(LNAM-LIND+10:8)=CHBIT(LNAM+1:LIND-1) | |
31351 | READ(CHIND,'(I8)') I1 | |
31352 | ENDIF | |
31353 | LNAM=LIND | |
31354 | IF(CHBIT(LNAM:LNAM).EQ.')') LNAM=LNAM+1 | |
31355 | NINDX=1 | |
31356 | ENDIF | |
31357 | IF(CHBIT(LNAM:LNAM).EQ.',') THEN | |
31358 | LIND=LNAM | |
31359 | 190 LIND=LIND+1 | |
31360 | IF(CHBIT(LIND:LIND).NE.')'.AND.CHBIT(LIND:LIND).NE.',') GOTO 190 | |
31361 | CHIND=' ' | |
31362 | CHIND(LNAM-LIND+10:8)=CHBIT(LNAM+1:LIND-1) | |
31363 | READ(CHIND,'(I8)') I2 | |
31364 | LNAM=LIND | |
31365 | IF(CHBIT(LNAM:LNAM).EQ.')') LNAM=LNAM+1 | |
31366 | NINDX=2 | |
31367 | ENDIF | |
31368 | IF(CHBIT(LNAM:LNAM).EQ.',') THEN | |
31369 | LIND=LNAM | |
31370 | 200 LIND=LIND+1 | |
31371 | IF(CHBIT(LIND:LIND).NE.')'.AND.CHBIT(LIND:LIND).NE.',') GOTO 200 | |
31372 | CHIND=' ' | |
31373 | CHIND(LNAM-LIND+10:8)=CHBIT(LNAM+1:LIND-1) | |
31374 | READ(CHIND,'(I8)') I3 | |
31375 | LNAM=LIND+1 | |
31376 | NINDX=3 | |
31377 | ENDIF | |
31378 | ||
31379 | C...Check that indices allowed. | |
31380 | IERR=0 | |
31381 | IF(NINDX.NE.MSVAR(IVAR,2)) IERR=1 | |
31382 | IF(NINDX.GE.1.AND.(I1.LT.MSVAR(IVAR,3).OR.I1.GT.MSVAR(IVAR,4))) | |
31383 | &IERR=2 | |
31384 | IF(NINDX.GE.2.AND.(I2.LT.MSVAR(IVAR,5).OR.I2.GT.MSVAR(IVAR,6))) | |
31385 | &IERR=3 | |
31386 | IF(NINDX.EQ.3.AND.(I3.LT.MSVAR(IVAR,7).OR.I3.GT.MSVAR(IVAR,8))) | |
31387 | &IERR=4 | |
31388 | IF(CHBIT(LNAM:LNAM).NE.'=') IERR=5 | |
31389 | IF(IERR.GE.1) THEN | |
31390 | CALL PYERRM(18,'(PYGIVE:) unallowed indices for '// | |
31391 | & CHBIT(1:LNAM-1)) | |
31392 | LLOW=LHIG | |
31393 | IF(LLOW.LT.LTOT) GOTO 120 | |
31394 | RETURN | |
31395 | ENDIF | |
31396 | ||
31397 | C...Save old value of variable. | |
31398 | IF(IVAR.EQ.1) THEN | |
31399 | IOLD=N | |
31400 | ELSEIF(IVAR.EQ.2) THEN | |
31401 | IOLD=K(I1,I2) | |
31402 | ELSEIF(IVAR.EQ.3) THEN | |
31403 | ROLD=P(I1,I2) | |
31404 | ELSEIF(IVAR.EQ.4) THEN | |
31405 | ROLD=V(I1,I2) | |
31406 | ELSEIF(IVAR.EQ.5) THEN | |
31407 | IOLD=MSTU(I1) | |
31408 | ELSEIF(IVAR.EQ.6) THEN | |
31409 | ROLD=PARU(I1) | |
31410 | ELSEIF(IVAR.EQ.7) THEN | |
31411 | IOLD=MSTJ(I1) | |
31412 | ELSEIF(IVAR.EQ.8) THEN | |
31413 | ROLD=PARJ(I1) | |
31414 | ELSEIF(IVAR.EQ.9) THEN | |
31415 | IOLD=KCHG(I1,I2) | |
31416 | ELSEIF(IVAR.EQ.10) THEN | |
31417 | ROLD=PMAS(I1,I2) | |
31418 | ELSEIF(IVAR.EQ.11) THEN | |
31419 | ROLD=PARF(I1) | |
31420 | ELSEIF(IVAR.EQ.12) THEN | |
31421 | ROLD=VCKM(I1,I2) | |
31422 | ELSEIF(IVAR.EQ.13) THEN | |
31423 | IOLD=MDCY(I1,I2) | |
31424 | ELSEIF(IVAR.EQ.14) THEN | |
31425 | IOLD=MDME(I1,I2) | |
31426 | ELSEIF(IVAR.EQ.15) THEN | |
31427 | ROLD=BRAT(I1) | |
31428 | ELSEIF(IVAR.EQ.16) THEN | |
31429 | IOLD=KFDP(I1,I2) | |
31430 | ELSEIF(IVAR.EQ.17) THEN | |
31431 | CHOLD=CHAF(I1,I2) | |
31432 | ELSEIF(IVAR.EQ.18) THEN | |
31433 | IOLD=MRPY(I1) | |
31434 | ELSEIF(IVAR.EQ.19) THEN | |
31435 | ROLD=RRPY(I1) | |
31436 | ELSEIF(IVAR.EQ.20) THEN | |
31437 | IOLD=MSEL | |
31438 | ELSEIF(IVAR.EQ.21) THEN | |
31439 | IOLD=MSUB(I1) | |
31440 | ELSEIF(IVAR.EQ.22) THEN | |
31441 | IOLD=KFIN(I1,I2) | |
31442 | ELSEIF(IVAR.EQ.23) THEN | |
31443 | ROLD=CKIN(I1) | |
31444 | ELSEIF(IVAR.EQ.24) THEN | |
31445 | IOLD=MSTP(I1) | |
31446 | ELSEIF(IVAR.EQ.25) THEN | |
31447 | ROLD=PARP(I1) | |
31448 | ELSEIF(IVAR.EQ.26) THEN | |
31449 | IOLD=MSTI(I1) | |
31450 | ELSEIF(IVAR.EQ.27) THEN | |
31451 | ROLD=PARI(I1) | |
31452 | ELSEIF(IVAR.EQ.28) THEN | |
31453 | IOLD=MINT(I1) | |
31454 | ELSEIF(IVAR.EQ.29) THEN | |
31455 | ROLD=VINT(I1) | |
31456 | ELSEIF(IVAR.EQ.30) THEN | |
31457 | IOLD=ISET(I1) | |
31458 | ELSEIF(IVAR.EQ.31) THEN | |
31459 | IOLD=KFPR(I1,I2) | |
31460 | ELSEIF(IVAR.EQ.32) THEN | |
31461 | ROLD=COEF(I1,I2) | |
31462 | ELSEIF(IVAR.EQ.33) THEN | |
31463 | IOLD=ICOL(I1,I2,I3) | |
31464 | ELSEIF(IVAR.EQ.34) THEN | |
31465 | ROLD=XSFX(I1,I2) | |
31466 | ELSEIF(IVAR.EQ.35) THEN | |
31467 | IOLD=ISIG(I1,I2) | |
31468 | ELSEIF(IVAR.EQ.36) THEN | |
31469 | ROLD=SIGH(I1) | |
31470 | ELSEIF(IVAR.EQ.37) THEN | |
31471 | IOLD=MWID(I1) | |
31472 | ELSEIF(IVAR.EQ.38) THEN | |
31473 | ROLD=WIDS(I1,I2) | |
31474 | ELSEIF(IVAR.EQ.39) THEN | |
31475 | IOLD=NGEN(I1,I2) | |
31476 | ELSEIF(IVAR.EQ.40) THEN | |
31477 | ROLD=XSEC(I1,I2) | |
31478 | ELSEIF(IVAR.EQ.41) THEN | |
31479 | CHOLD2=PROC(I1) | |
31480 | ELSEIF(IVAR.EQ.42) THEN | |
31481 | ROLD=SIGT(I1,I2,I3) | |
31482 | ELSEIF(IVAR.EQ.43) THEN | |
31483 | ROLD=XPVMD(I1) | |
31484 | ELSEIF(IVAR.EQ.44) THEN | |
31485 | ROLD=XPANL(I1) | |
31486 | ELSEIF(IVAR.EQ.45) THEN | |
31487 | ROLD=XPANH(I1) | |
31488 | ELSEIF(IVAR.EQ.46) THEN | |
31489 | ROLD=XPBEH(I1) | |
31490 | ELSEIF(IVAR.EQ.47) THEN | |
31491 | ROLD=XPDIR(I1) | |
31492 | ELSEIF(IVAR.EQ.48) THEN | |
31493 | IOLD=IMSS(I1) | |
31494 | ELSEIF(IVAR.EQ.49) THEN | |
31495 | ROLD=RMSS(I1) | |
31496 | ENDIF | |
31497 | ||
31498 | C...Print current value of variable. Loop back. | |
31499 | IF(LNAM.GE.LBIT) THEN | |
31500 | CHBIT(LNAM:14)=' ' | |
31501 | CHBIT(15:60)=' has the value ' | |
31502 | IF(MSVAR(IVAR,1).EQ.1) THEN | |
31503 | WRITE(CHBIT(51:60),'(I10)') IOLD | |
31504 | ELSEIF(MSVAR(IVAR,1).EQ.2) THEN | |
31505 | WRITE(CHBIT(47:60),'(F14.5)') ROLD | |
31506 | ELSEIF(MSVAR(IVAR,1).EQ.3) THEN | |
31507 | CHBIT(53:60)=CHOLD | |
31508 | ELSE | |
31509 | CHBIT(33:60)=CHOLD | |
31510 | ENDIF | |
31511 | IF(MSTU(13).GE.1) WRITE(MSTU(11),5000) CHBIT(1:60) | |
31512 | LLOW=LHIG | |
31513 | IF(LLOW.LT.LTOT) GOTO 120 | |
31514 | RETURN | |
31515 | ENDIF | |
31516 | ||
31517 | C...Read in new variable value. | |
31518 | IF(MSVAR(IVAR,1).EQ.1) THEN | |
31519 | CHINI=' ' | |
31520 | CHINI(LNAM-LBIT+11:10)=CHBIT(LNAM+1:LBIT) | |
31521 | READ(CHINI,'(I10)') INEW | |
31522 | ELSEIF(MSVAR(IVAR,1).EQ.2) THEN | |
31523 | CHINR=' ' | |
31524 | CHINR(LNAM-LBIT+17:16)=CHBIT(LNAM+1:LBIT) | |
31525 | READ(CHINR,*) RNEW | |
31526 | ELSEIF(MSVAR(IVAR,1).EQ.3) THEN | |
31527 | CHNEW=CHBIT(LNAM+1:LBIT)//' ' | |
31528 | ELSE | |
31529 | CHNEW2=CHBIT(LNAM+1:LBIT)//' ' | |
31530 | ENDIF | |
31531 | ||
31532 | C...Store new variable value. | |
31533 | IF(IVAR.EQ.1) THEN | |
31534 | N=INEW | |
31535 | ELSEIF(IVAR.EQ.2) THEN | |
31536 | K(I1,I2)=INEW | |
31537 | ELSEIF(IVAR.EQ.3) THEN | |
31538 | P(I1,I2)=RNEW | |
31539 | ELSEIF(IVAR.EQ.4) THEN | |
31540 | V(I1,I2)=RNEW | |
31541 | ELSEIF(IVAR.EQ.5) THEN | |
31542 | MSTU(I1)=INEW | |
31543 | ELSEIF(IVAR.EQ.6) THEN | |
31544 | PARU(I1)=RNEW | |
31545 | ELSEIF(IVAR.EQ.7) THEN | |
31546 | MSTJ(I1)=INEW | |
31547 | ELSEIF(IVAR.EQ.8) THEN | |
31548 | PARJ(I1)=RNEW | |
31549 | ELSEIF(IVAR.EQ.9) THEN | |
31550 | KCHG(I1,I2)=INEW | |
31551 | ELSEIF(IVAR.EQ.10) THEN | |
31552 | PMAS(I1,I2)=RNEW | |
31553 | ELSEIF(IVAR.EQ.11) THEN | |
31554 | PARF(I1)=RNEW | |
31555 | ELSEIF(IVAR.EQ.12) THEN | |
31556 | VCKM(I1,I2)=RNEW | |
31557 | ELSEIF(IVAR.EQ.13) THEN | |
31558 | MDCY(I1,I2)=INEW | |
31559 | ELSEIF(IVAR.EQ.14) THEN | |
31560 | MDME(I1,I2)=INEW | |
31561 | ELSEIF(IVAR.EQ.15) THEN | |
31562 | BRAT(I1)=RNEW | |
31563 | ELSEIF(IVAR.EQ.16) THEN | |
31564 | KFDP(I1,I2)=INEW | |
31565 | ELSEIF(IVAR.EQ.17) THEN | |
31566 | CHAF(I1,I2)=CHNEW | |
31567 | ELSEIF(IVAR.EQ.18) THEN | |
31568 | MRPY(I1)=INEW | |
31569 | ELSEIF(IVAR.EQ.19) THEN | |
31570 | RRPY(I1)=RNEW | |
31571 | ELSEIF(IVAR.EQ.20) THEN | |
31572 | MSEL=INEW | |
31573 | ELSEIF(IVAR.EQ.21) THEN | |
31574 | MSUB(I1)=INEW | |
31575 | ELSEIF(IVAR.EQ.22) THEN | |
31576 | KFIN(I1,I2)=INEW | |
31577 | ELSEIF(IVAR.EQ.23) THEN | |
31578 | CKIN(I1)=RNEW | |
31579 | ELSEIF(IVAR.EQ.24) THEN | |
31580 | MSTP(I1)=INEW | |
31581 | ELSEIF(IVAR.EQ.25) THEN | |
31582 | PARP(I1)=RNEW | |
31583 | ELSEIF(IVAR.EQ.26) THEN | |
31584 | MSTI(I1)=INEW | |
31585 | ELSEIF(IVAR.EQ.27) THEN | |
31586 | PARI(I1)=RNEW | |
31587 | ELSEIF(IVAR.EQ.28) THEN | |
31588 | MINT(I1)=INEW | |
31589 | ELSEIF(IVAR.EQ.29) THEN | |
31590 | VINT(I1)=RNEW | |
31591 | ELSEIF(IVAR.EQ.30) THEN | |
31592 | ISET(I1)=INEW | |
31593 | ELSEIF(IVAR.EQ.31) THEN | |
31594 | KFPR(I1,I2)=INEW | |
31595 | ELSEIF(IVAR.EQ.32) THEN | |
31596 | COEF(I1,I2)=RNEW | |
31597 | ELSEIF(IVAR.EQ.33) THEN | |
31598 | ICOL(I1,I2,I3)=INEW | |
31599 | ELSEIF(IVAR.EQ.34) THEN | |
31600 | XSFX(I1,I2)=RNEW | |
31601 | ELSEIF(IVAR.EQ.35) THEN | |
31602 | ISIG(I1,I2)=INEW | |
31603 | ELSEIF(IVAR.EQ.36) THEN | |
31604 | SIGH(I1)=RNEW | |
31605 | ELSEIF(IVAR.EQ.37) THEN | |
31606 | MWID(I1)=INEW | |
31607 | ELSEIF(IVAR.EQ.38) THEN | |
31608 | WIDS(I1,I2)=RNEW | |
31609 | ELSEIF(IVAR.EQ.39) THEN | |
31610 | NGEN(I1,I2)=INEW | |
31611 | ELSEIF(IVAR.EQ.40) THEN | |
31612 | XSEC(I1,I2)=RNEW | |
31613 | ELSEIF(IVAR.EQ.41) THEN | |
31614 | PROC(I1)=CHNEW2 | |
31615 | ELSEIF(IVAR.EQ.42) THEN | |
31616 | SIGT(I1,I2,I3)=RNEW | |
31617 | ELSEIF(IVAR.EQ.43) THEN | |
31618 | XPVMD(I1)=RNEW | |
31619 | ELSEIF(IVAR.EQ.44) THEN | |
31620 | XPANL(I1)=RNEW | |
31621 | ELSEIF(IVAR.EQ.45) THEN | |
31622 | XPANH(I1)=RNEW | |
31623 | ELSEIF(IVAR.EQ.46) THEN | |
31624 | XPBEH(I1)=RNEW | |
31625 | ELSEIF(IVAR.EQ.47) THEN | |
31626 | XPDIR(I1)=RNEW | |
31627 | ELSEIF(IVAR.EQ.48) THEN | |
31628 | IMSS(I1)=INEW | |
31629 | ELSEIF(IVAR.EQ.49) THEN | |
31630 | RMSS(I1)=RNEW | |
31631 | ENDIF | |
31632 | ||
31633 | C...Write old and new value. Loop back. | |
31634 | CHBIT(LNAM:14)=' ' | |
31635 | CHBIT(15:60)=' changed from to ' | |
31636 | IF(MSVAR(IVAR,1).EQ.1) THEN | |
31637 | WRITE(CHBIT(33:42),'(I10)') IOLD | |
31638 | WRITE(CHBIT(51:60),'(I10)') INEW | |
31639 | IF(MSTU(13).GE.1) WRITE(MSTU(11),5000) CHBIT(1:60) | |
31640 | ELSEIF(MSVAR(IVAR,1).EQ.2) THEN | |
31641 | WRITE(CHBIT(29:42),'(F14.5)') ROLD | |
31642 | WRITE(CHBIT(47:60),'(F14.5)') RNEW | |
31643 | IF(MSTU(13).GE.1) WRITE(MSTU(11),5000) CHBIT(1:60) | |
31644 | ELSEIF(MSVAR(IVAR,1).EQ.3) THEN | |
31645 | CHBIT(35:42)=CHOLD | |
31646 | CHBIT(53:60)=CHNEW | |
31647 | IF(MSTU(13).GE.1) WRITE(MSTU(11),5000) CHBIT(1:60) | |
31648 | ELSE | |
31649 | CHBIT(15:88)=' changed from '//CHOLD2//' to '//CHNEW2 | |
31650 | IF(MSTU(13).GE.1) WRITE(MSTU(11),5100) CHBIT(1:88) | |
31651 | ENDIF | |
31652 | LLOW=LHIG | |
31653 | IF(LLOW.LT.LTOT) GOTO 120 | |
31654 | ||
31655 | C...Format statement for output on unit MSTU(11) (by default 6). | |
31656 | 5000 FORMAT(5X,A60) | |
31657 | 5100 FORMAT(5X,A88) | |
31658 | ||
31659 | RETURN | |
31660 | END | |
31661 | ||
31662 | C********************************************************************* | |
31663 | ||
31664 | C...PYEXEC | |
31665 | C...Administrates the fragmentation and decay chain. | |
31666 | ||
31667 | SUBROUTINE PYEXEC | |
31668 | ||
31669 | C...Double precision and integer declarations. | |
31670 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
31671 | INTEGER PYK,PYCHGE,PYCOMP | |
31672 | C...Commonblocks. | |
31673 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
31674 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
31675 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
31676 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
31677 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
31678 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/,/PYINT4/ | |
31679 | C...Local array. | |
31680 | DIMENSION PS(2,6),IJOIN(100) | |
31681 | ||
31682 | C...Initialize and reset. | |
31683 | MSTU(24)=0 | |
31684 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
31685 | MSTU(31)=MSTU(31)+1 | |
31686 | MSTU(1)=0 | |
31687 | MSTU(2)=0 | |
31688 | MSTU(3)=0 | |
31689 | IF(MSTU(17).LE.0) MSTU(90)=0 | |
31690 | MCONS=1 | |
31691 | ||
31692 | C...Sum up momentum, energy and charge for starting entries. | |
31693 | NSAV=N | |
31694 | DO 110 I=1,2 | |
31695 | DO 100 J=1,6 | |
31696 | PS(I,J)=0D0 | |
31697 | 100 CONTINUE | |
31698 | 110 CONTINUE | |
31699 | DO 130 I=1,N | |
31700 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 130 | |
31701 | DO 120 J=1,4 | |
31702 | PS(1,J)=PS(1,J)+P(I,J) | |
31703 | 120 CONTINUE | |
31704 | PS(1,6)=PS(1,6)+PYCHGE(K(I,2)) | |
31705 | 130 CONTINUE | |
31706 | PARU(21)=PS(1,4) | |
31707 | ||
31708 | C...Prepare system for subsequent fragmentation/decay. | |
31709 | CALL PYPREP(0) | |
31710 | ||
31711 | C...Loop through jet fragmentation and particle decays. | |
31712 | MBE=0 | |
31713 | 140 MBE=MBE+1 | |
31714 | IP=0 | |
31715 | 150 IP=IP+1 | |
31716 | KC=0 | |
31717 | IF(K(IP,1).GT.0.AND.K(IP,1).LE.10) KC=PYCOMP(K(IP,2)) | |
31718 | IF(KC.EQ.0) THEN | |
31719 | ||
31720 | C...Deal with any remaining undecayed resonance | |
31721 | C...(normally the task of PYEVNT, so seldom used). | |
31722 | ELSEIF(MWID(KC).NE.0) THEN | |
31723 | IBEG=IP | |
31724 | IF(KCHG(KC,2).NE.0.AND.K(I,1).NE.3) THEN | |
31725 | IBEG=IP+1 | |
31726 | 160 IBEG=IBEG-1 | |
31727 | IF(IBEG.GE.2.AND.K(IBEG,1).EQ.2) GOTO 160 | |
31728 | IF(K(IBEG,1).NE.2) IBEG=IBEG+1 | |
31729 | IEND=IP-1 | |
31730 | 170 IEND=IEND+1 | |
31731 | IF(IEND.LT.N.AND.K(IEND,1).EQ.2) GOTO 170 | |
31732 | IF(IEND.LT.N.AND.KCHG(PYCOMP(K(IEND,2)),2).EQ.0) GOTO 170 | |
31733 | NJOIN=0 | |
31734 | DO 180 I=IBEG,IEND | |
31735 | IF(KCHG(PYCOMP(K(IEND,2)),2).NE.0) THEN | |
31736 | NJOIN=NJOIN+1 | |
31737 | IJOIN(NJOIN)=I | |
31738 | ENDIF | |
31739 | 180 CONTINUE | |
31740 | ENDIF | |
31741 | CALL PYRESD(IP) | |
31742 | CALL PYPREP(IBEG) | |
31743 | ||
31744 | C...Particle decay if unstable and allowed. Save long-lived particle | |
31745 | C...decays until second pass after Bose-Einstein effects. | |
31746 | ELSEIF(KCHG(KC,2).EQ.0) THEN | |
31747 | IF(MSTJ(21).GE.1.AND.MDCY(KC,1).GE.1.AND.(MSTJ(51).LE.0.OR.MBE | |
31748 | & .EQ.2.OR.PMAS(KC,2).GE.PARJ(91).OR.IABS(K(IP,2)).EQ.311)) | |
31749 | & CALL PYDECY(IP) | |
31750 | ||
31751 | C...Decay products may develop a shower. | |
31752 | IF(MSTJ(92).GT.0) THEN | |
31753 | IP1=MSTJ(92) | |
31754 | QMAX=SQRT(MAX(0D0,(P(IP1,4)+P(IP1+1,4))**2-(P(IP1,1)+P(IP1+1, | |
31755 | & 1))**2-(P(IP1,2)+P(IP1+1,2))**2-(P(IP1,3)+P(IP1+1,3))**2)) | |
31756 | CALL PYSHOW(IP1,IP1+1,QMAX) | |
31757 | CALL PYPREP(IP1) | |
31758 | MSTJ(92)=0 | |
31759 | ELSEIF(MSTJ(92).LT.0) THEN | |
31760 | IP1=-MSTJ(92) | |
31761 | CALL PYSHOW(IP1,-3,P(IP,5)) | |
31762 | CALL PYPREP(IP1) | |
31763 | MSTJ(92)=0 | |
31764 | ENDIF | |
31765 | ||
31766 | C...Jet fragmentation: string or independent fragmentation. | |
31767 | ELSEIF(K(IP,1).EQ.1.OR.K(IP,1).EQ.2) THEN | |
31768 | MFRAG=MSTJ(1) | |
31769 | IF(MFRAG.GE.1.AND.K(IP,1).EQ.1) MFRAG=2 | |
31770 | IF(MSTJ(21).GE.2.AND.K(IP,1).EQ.2.AND.N.GT.IP) THEN | |
31771 | IF(K(IP+1,1).EQ.1.AND.K(IP+1,3).EQ.K(IP,3).AND. | |
31772 | & K(IP,3).GT.0.AND.K(IP,3).LT.IP) THEN | |
31773 | IF(KCHG(PYCOMP(K(K(IP,3),2)),2).EQ.0) MFRAG=MIN(1,MFRAG) | |
31774 | ENDIF | |
31775 | ENDIF | |
31776 | IF(MFRAG.EQ.1) CALL PYSTRF(IP) | |
31777 | IF(MFRAG.EQ.2) CALL PYINDF(IP) | |
31778 | IF(MFRAG.EQ.2.AND.K(IP,1).EQ.1) MCONS=0 | |
31779 | IF(MFRAG.EQ.2.AND.(MSTJ(3).LE.0.OR.MOD(MSTJ(3),5).EQ.0)) MCONS=0 | |
31780 | ENDIF | |
31781 | ||
31782 | C...Loop back if enough space left in PYJETS and no error abort. | |
31783 | IF(MSTU(24).NE.0.AND.MSTU(21).GE.2) THEN | |
31784 | ELSEIF(IP.LT.N.AND.N.LT.MSTU(4)-20-MSTU(32)) THEN | |
31785 | GOTO 150 | |
31786 | ELSEIF(IP.LT.N) THEN | |
31787 | CALL PYERRM(11,'(PYEXEC:) no more memory left in PYJETS') | |
31788 | ENDIF | |
31789 | ||
31790 | C...Include simple Bose-Einstein effect parametrization if desired. | |
31791 | IF(MBE.EQ.1.AND.MSTJ(51).GE.1) THEN | |
31792 | CALL PYBOEI(NSAV) | |
31793 | GOTO 140 | |
31794 | ENDIF | |
31795 | ||
31796 | C...Check that momentum, energy and charge were conserved. | |
31797 | DO 200 I=1,N | |
31798 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 200 | |
31799 | DO 190 J=1,4 | |
31800 | PS(2,J)=PS(2,J)+P(I,J) | |
31801 | 190 CONTINUE | |
31802 | PS(2,6)=PS(2,6)+PYCHGE(K(I,2)) | |
31803 | 200 CONTINUE | |
31804 | PDEV=(ABS(PS(2,1)-PS(1,1))+ABS(PS(2,2)-PS(1,2))+ABS(PS(2,3)- | |
31805 | &PS(1,3))+ABS(PS(2,4)-PS(1,4)))/(1D0+ABS(PS(2,4))+ABS(PS(1,4))) | |
31806 | IF(MCONS.EQ.1.AND.PDEV.GT.PARU(11)) CALL PYERRM(15, | |
31807 | &'(PYEXEC:) four-momentum was not conserved') | |
31808 | IF(MCONS.EQ.1.AND.ABS(PS(2,6)-PS(1,6)).GT.0.1D0) CALL PYERRM(15, | |
31809 | &'(PYEXEC:) charge was not conserved') | |
31810 | ||
31811 | RETURN | |
31812 | END | |
31813 | ||
31814 | C********************************************************************* | |
31815 | ||
31816 | C...PYPREP | |
31817 | C...Rearranges partons along strings. Allows small systems | |
31818 | C...to collapse into one or two particles and checks flavours. | |
31819 | ||
31820 | SUBROUTINE PYPREP(IP) | |
31821 | ||
31822 | C...Double precision and integer declarations. | |
31823 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
31824 | INTEGER PYK,PYCHGE,PYCOMP | |
31825 | C...Commonblocks. | |
31826 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
31827 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
31828 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
31829 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
31830 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/ | |
31831 | C...Local arrays. | |
31832 | DIMENSION DPS(5),DPC(5),UE(3) | |
31833 | ||
31834 | C...Rearrange parton shower product listing along strings: begin loop. | |
31835 | I1=N | |
31836 | DO 130 MQGST=1,2 | |
31837 | DO 120 I=MAX(1,IP),N | |
31838 | IF(K(I,1).NE.3) GOTO 120 | |
31839 | KC=PYCOMP(K(I,2)) | |
31840 | IF(KC.EQ.0) GOTO 120 | |
31841 | KQ=KCHG(KC,2) | |
31842 | IF(KQ.EQ.0.OR.(MQGST.EQ.1.AND.KQ.EQ.2)) GOTO 120 | |
31843 | ||
31844 | C...Pick up loose string end. | |
31845 | KCS=4 | |
31846 | IF(KQ*ISIGN(1,K(I,2)).LT.0) KCS=5 | |
31847 | IA=I | |
31848 | NSTP=0 | |
31849 | 100 NSTP=NSTP+1 | |
31850 | IF(NSTP.GT.4*N) THEN | |
31851 | CALL PYERRM(14,'(PYPREP:) caught in infinite loop') | |
31852 | RETURN | |
31853 | ENDIF | |
31854 | ||
31855 | C...Copy undecayed parton. | |
31856 | IF(K(IA,1).EQ.3) THEN | |
31857 | IF(I1.GE.MSTU(4)-MSTU(32)-5) THEN | |
31858 | CALL PYERRM(11,'(PYPREP:) no more memory left in PYJETS') | |
31859 | RETURN | |
31860 | ENDIF | |
31861 | I1=I1+1 | |
31862 | K(I1,1)=2 | |
31863 | IF(NSTP.GE.2.AND.KCHG(PYCOMP(K(IA,2)),2).NE.2) K(I1,1)=1 | |
31864 | K(I1,2)=K(IA,2) | |
31865 | K(I1,3)=IA | |
31866 | K(I1,4)=0 | |
31867 | K(I1,5)=0 | |
31868 | DO 110 J=1,5 | |
31869 | P(I1,J)=P(IA,J) | |
31870 | V(I1,J)=V(IA,J) | |
31871 | 110 CONTINUE | |
31872 | K(IA,1)=K(IA,1)+10 | |
31873 | IF(K(I1,1).EQ.1) GOTO 120 | |
31874 | ENDIF | |
31875 | ||
31876 | C...Go to next parton in colour space. | |
31877 | IB=IA | |
31878 | IF(MOD(K(IB,KCS)/MSTU(5)**2,2).EQ.0.AND.MOD(K(IB,KCS),MSTU(5)) | |
31879 | & .NE.0) THEN | |
31880 | IA=MOD(K(IB,KCS),MSTU(5)) | |
31881 | K(IB,KCS)=K(IB,KCS)+MSTU(5)**2 | |
31882 | MREV=0 | |
31883 | ELSE | |
31884 | IF(K(IB,KCS).GE.2*MSTU(5)**2.OR.MOD(K(IB,KCS)/MSTU(5), | |
31885 | & MSTU(5)).EQ.0) KCS=9-KCS | |
31886 | IA=MOD(K(IB,KCS)/MSTU(5),MSTU(5)) | |
31887 | K(IB,KCS)=K(IB,KCS)+2*MSTU(5)**2 | |
31888 | MREV=1 | |
31889 | ENDIF | |
31890 | IF(IA.LE.0.OR.IA.GT.N) THEN | |
31891 | CALL PYERRM(12,'(PYPREP:) colour rearrangement failed') | |
31892 | RETURN | |
31893 | ENDIF | |
31894 | IF(MOD(K(IA,4)/MSTU(5),MSTU(5)).EQ.IB.OR.MOD(K(IA,5)/MSTU(5), | |
31895 | & MSTU(5)).EQ.IB) THEN | |
31896 | IF(MREV.EQ.1) KCS=9-KCS | |
31897 | IF(MOD(K(IA,KCS)/MSTU(5),MSTU(5)).NE.IB) KCS=9-KCS | |
31898 | K(IA,KCS)=K(IA,KCS)+2*MSTU(5)**2 | |
31899 | ELSE | |
31900 | IF(MREV.EQ.0) KCS=9-KCS | |
31901 | IF(MOD(K(IA,KCS),MSTU(5)).NE.IB) KCS=9-KCS | |
31902 | K(IA,KCS)=K(IA,KCS)+MSTU(5)**2 | |
31903 | ENDIF | |
31904 | IF(IA.NE.I) GOTO 100 | |
31905 | K(I1,1)=1 | |
31906 | 120 CONTINUE | |
31907 | 130 CONTINUE | |
31908 | N=I1 | |
31909 | IF(MSTJ(14).LT.0) RETURN | |
31910 | ||
31911 | C...Find lowest-mass colour singlet jet system, OK if above threshold. | |
31912 | IF(MSTJ(14).EQ.0) GOTO 320 | |
31913 | NS=N | |
31914 | 140 NSIN=N-NS | |
31915 | PDM=1D0+PARJ(32) | |
31916 | IC=0 | |
31917 | DO 190 I=MAX(1,IP),NS | |
31918 | IF(K(I,1).NE.1.AND.K(I,1).NE.2) THEN | |
31919 | ELSEIF(K(I,1).EQ.2.AND.IC.EQ.0) THEN | |
31920 | NSIN=NSIN+1 | |
31921 | IC=I | |
31922 | DO 150 J=1,4 | |
31923 | DPS(J)=P(I,J) | |
31924 | 150 CONTINUE | |
31925 | MSTJ(93)=1 | |
31926 | DPS(5)=PYMASS(K(I,2)) | |
31927 | ELSEIF(K(I,1).EQ.2) THEN | |
31928 | DO 160 J=1,4 | |
31929 | DPS(J)=DPS(J)+P(I,J) | |
31930 | 160 CONTINUE | |
31931 | ELSEIF(IC.NE.0.AND.KCHG(PYCOMP(K(I,2)),2).NE.0) THEN | |
31932 | DO 170 J=1,4 | |
31933 | DPS(J)=DPS(J)+P(I,J) | |
31934 | 170 CONTINUE | |
31935 | MSTJ(93)=1 | |
31936 | DPS(5)=DPS(5)+PYMASS(K(I,2)) | |
31937 | PD=SQRT(MAX(0D0,DPS(4)**2-DPS(1)**2-DPS(2)**2-DPS(3)**2))- | |
31938 | & DPS(5) | |
31939 | IF(PD.LT.PDM) THEN | |
31940 | PDM=PD | |
31941 | DO 180 J=1,5 | |
31942 | DPC(J)=DPS(J) | |
31943 | 180 CONTINUE | |
31944 | IC1=IC | |
31945 | IC2=I | |
31946 | ENDIF | |
31947 | IC=0 | |
31948 | ELSE | |
31949 | NSIN=NSIN+1 | |
31950 | ENDIF | |
31951 | 190 CONTINUE | |
31952 | IF(PDM.GE.PARJ(32)) GOTO 320 | |
31953 | ||
31954 | C...Fill small-mass system as cluster. | |
31955 | NSAV=N | |
31956 | PECM=SQRT(MAX(0D0,DPC(4)**2-DPC(1)**2-DPC(2)**2-DPC(3)**2)) | |
31957 | K(N+1,1)=11 | |
31958 | K(N+1,2)=91 | |
31959 | K(N+1,3)=IC1 | |
31960 | K(N+1,4)=N+2 | |
31961 | K(N+1,5)=N+3 | |
31962 | P(N+1,1)=DPC(1) | |
31963 | P(N+1,2)=DPC(2) | |
31964 | P(N+1,3)=DPC(3) | |
31965 | P(N+1,4)=DPC(4) | |
31966 | P(N+1,5)=PECM | |
31967 | ||
31968 | C...Form two particles from flavours of lowest-mass system, if feasible. | |
31969 | K(N+2,1)=1 | |
31970 | K(N+3,1)=1 | |
31971 | IF(MSTU(16).NE.2) THEN | |
31972 | K(N+2,3)=N+1 | |
31973 | K(N+3,3)=N+1 | |
31974 | ELSE | |
31975 | K(N+2,3)=IC1 | |
31976 | K(N+3,3)=IC2 | |
31977 | ENDIF | |
31978 | K(N+2,4)=0 | |
31979 | K(N+3,4)=0 | |
31980 | K(N+2,5)=0 | |
31981 | K(N+3,5)=0 | |
31982 | IF(IABS(K(IC1,2)).NE.21) THEN | |
31983 | KC1=PYCOMP(K(IC1,2)) | |
31984 | KC2=PYCOMP(K(IC2,2)) | |
31985 | IF(KC1.EQ.0.OR.KC2.EQ.0) GOTO 320 | |
31986 | KQ1=KCHG(KC1,2)*ISIGN(1,K(IC1,2)) | |
31987 | KQ2=KCHG(KC2,2)*ISIGN(1,K(IC2,2)) | |
31988 | IF(KQ1+KQ2.NE.0) GOTO 320 | |
31989 | C.. Start with qq, if there is one. Only allow for rank 1 popcorn meson | |
31990 | 200 K1=K(IC1,2) | |
31991 | IF(IABS(K(IC2,2)).GT.10) K1=K(IC2,2) | |
31992 | MSTU(125)=0 | |
31993 | CALL PYDCYK(K1,0,KFLN,K(N+2,2)) | |
31994 | CALL PYDCYK(K(IC1,2)+K(IC2,2)-K1,-KFLN,KFLDMP,K(N+3,2)) | |
31995 | IF(K(N+2,2).EQ.0.OR.K(N+3,2).EQ.0) GOTO 200 | |
31996 | ELSE | |
31997 | IF(IABS(K(IC2,2)).NE.21) GOTO 320 | |
31998 | C.. No room for popcorn mesons in closed string -> 2 hadrons. | |
31999 | MSTU(125)=0 | |
32000 | 210 CALL PYDCYK(1+INT((2D0+PARJ(2))*PYR(0)),0,KFLN,KFDMP) | |
32001 | CALL PYDCYK(KFLN,0,KFLM,K(N+2,2)) | |
32002 | CALL PYDCYK(-KFLN,-KFLM,KFLDMP,K(N+3,2)) | |
32003 | IF(K(N+2,2).EQ.0.OR.K(N+3,2).EQ.0) GOTO 210 | |
32004 | ENDIF | |
32005 | P(N+2,5)=PYMASS(K(N+2,2)) | |
32006 | P(N+3,5)=PYMASS(K(N+3,2)) | |
32007 | IF(P(N+2,5)+P(N+3,5)+PARJ(64).GE.PECM.AND.NSIN.EQ.1) GOTO 320 | |
32008 | IF(P(N+2,5)+P(N+3,5)+PARJ(64).GE.PECM) GOTO 260 | |
32009 | ||
32010 | C...Perform two-particle decay of jet system, if possible. | |
32011 | IF(PECM.GE.0.02D0*DPC(4)) THEN | |
32012 | PA=SQRT((PECM**2-(P(N+2,5)+P(N+3,5))**2)*(PECM**2- | |
32013 | & (P(N+2,5)-P(N+3,5))**2))/(2D0*PECM) | |
32014 | UE(3)=2D0*PYR(0)-1D0 | |
32015 | PHI=PARU(2)*PYR(0) | |
32016 | UE(1)=SQRT(1D0-UE(3)**2)*COS(PHI) | |
32017 | UE(2)=SQRT(1D0-UE(3)**2)*SIN(PHI) | |
32018 | DO 220 J=1,3 | |
32019 | P(N+2,J)=PA*UE(J) | |
32020 | P(N+3,J)=-PA*UE(J) | |
32021 | 220 CONTINUE | |
32022 | P(N+2,4)=SQRT(PA**2+P(N+2,5)**2) | |
32023 | P(N+3,4)=SQRT(PA**2+P(N+3,5)**2) | |
32024 | MSTU(33)=1 | |
32025 | CALL PYROBO(N+2,N+3,0D0,0D0,DPC(1)/DPC(4),DPC(2)/DPC(4), | |
32026 | & DPC(3)/DPC(4)) | |
32027 | ELSE | |
32028 | NP=0 | |
32029 | DO 230 I=IC1,IC2 | |
32030 | IF(K(I,1).EQ.1.OR.K(I,1).EQ.2) NP=NP+1 | |
32031 | 230 CONTINUE | |
32032 | HA=P(IC1,4)*P(IC2,4)-P(IC1,1)*P(IC2,1)-P(IC1,2)*P(IC2,2)- | |
32033 | & P(IC1,3)*P(IC2,3) | |
32034 | IF(NP.GE.3.OR.HA.LE.1.25D0*P(IC1,5)*P(IC2,5)) GOTO 260 | |
32035 | HD1=0.5D0*(P(N+2,5)**2-P(IC1,5)**2) | |
32036 | HD2=0.5D0*(P(N+3,5)**2-P(IC2,5)**2) | |
32037 | HR=SQRT(MAX(0D0,((HA-HD1-HD2)**2-(P(N+2,5)*P(N+3,5))**2)/ | |
32038 | & (HA**2-(P(IC1,5)*P(IC2,5))**2)))-1D0 | |
32039 | HC=P(IC1,5)**2+2D0*HA+P(IC2,5)**2 | |
32040 | HK1=((P(IC2,5)**2+HA)*HR+HD1-HD2)/HC | |
32041 | HK2=((P(IC1,5)**2+HA)*HR+HD2-HD1)/HC | |
32042 | DO 240 J=1,4 | |
32043 | P(N+2,J)=(1D0+HK1)*P(IC1,J)-HK2*P(IC2,J) | |
32044 | P(N+3,J)=(1D0+HK2)*P(IC2,J)-HK1*P(IC1,J) | |
32045 | 240 CONTINUE | |
32046 | ENDIF | |
32047 | DO 250 J=1,4 | |
32048 | V(N+1,J)=V(IC1,J) | |
32049 | V(N+2,J)=V(IC1,J) | |
32050 | V(N+3,J)=V(IC2,J) | |
32051 | 250 CONTINUE | |
32052 | V(N+1,5)=0D0 | |
32053 | V(N+2,5)=0D0 | |
32054 | V(N+3,5)=0D0 | |
32055 | N=N+3 | |
32056 | GOTO 300 | |
32057 | ||
32058 | C...Else form one particle from the flavours available, if possible. | |
32059 | 260 K(N+1,5)=N+2 | |
32060 | IF(IABS(K(IC1,2)).GT.100.AND.IABS(K(IC2,2)).GT.100) THEN | |
32061 | GOTO 320 | |
32062 | ELSEIF(IABS(K(IC1,2)).NE.21) THEN | |
32063 | CALL PYKFDI(K(IC1,2),K(IC2,2),KFLDMP,K(N+2,2)) | |
32064 | ELSE | |
32065 | KFLN=1+INT((2D0+PARJ(2))*PYR(0)) | |
32066 | CALL PYKFDI(KFLN,-KFLN,KFLDMP,K(N+2,2)) | |
32067 | ENDIF | |
32068 | IF(K(N+2,2).EQ.0) GOTO 260 | |
32069 | P(N+2,5)=PYMASS(K(N+2,2)) | |
32070 | ||
32071 | C...Find parton/particle which combines to largest extra mass. | |
32072 | IR=0 | |
32073 | HA=0D0 | |
32074 | HSM=0D0 | |
32075 | DO 280 MCOMB=1,3 | |
32076 | IF(IR.NE.0) GOTO 280 | |
32077 | DO 270 I=MAX(1,IP),N | |
32078 | IF(K(I,1).LE.0.OR.K(I,1).GT.10.OR.(I.GE.IC1.AND.I.LE.IC2 | |
32079 | & .AND.K(I,1).GE.1.AND.K(I,1).LE.2)) GOTO 270 | |
32080 | IF(MCOMB.EQ.1) KCI=PYCOMP(K(I,2)) | |
32081 | IF(MCOMB.EQ.1.AND.KCI.EQ.0) GOTO 270 | |
32082 | IF(MCOMB.EQ.1.AND.KCHG(KCI,2).EQ.0.AND.I.LE.NS) GOTO 270 | |
32083 | IF(MCOMB.EQ.2.AND.IABS(K(I,2)).GT.10.AND.IABS(K(I,2)).LE.100) | |
32084 | & GOTO 270 | |
32085 | HCR=DPC(4)*P(I,4)-DPC(1)*P(I,1)-DPC(2)*P(I,2)-DPC(3)*P(I,3) | |
32086 | HSR=2D0*HCR+PECM**2-P(N+2,5)**2-2D0*P(N+2,5)*P(I,5) | |
32087 | IF(HSR.GT.HSM) THEN | |
32088 | IR=I | |
32089 | HA=HCR | |
32090 | HSM=HSR | |
32091 | ENDIF | |
32092 | 270 CONTINUE | |
32093 | 280 CONTINUE | |
32094 | ||
32095 | C...Shuffle energy and momentum to put new particle on mass shell. | |
32096 | IF(IR.NE.0) THEN | |
32097 | HB=PECM**2+HA | |
32098 | HC=P(N+2,5)**2+HA | |
32099 | HD=P(IR,5)**2+HA | |
32100 | HK2=0.5D0*(HB*SQRT(MAX(0D0,((HB+HC)**2-4D0*(HB+HD)*P(N+2,5)**2)/ | |
32101 | & (HA**2-(PECM*P(IR,5))**2)))-(HB+HC))/(HB+HD) | |
32102 | HK1=(0.5D0*(P(N+2,5)**2-PECM**2)+HD*HK2)/HB | |
32103 | DO 290 J=1,4 | |
32104 | P(N+2,J)=(1D0+HK1)*DPC(J)-HK2*P(IR,J) | |
32105 | P(IR,J)=(1D0+HK2)*P(IR,J)-HK1*DPC(J) | |
32106 | V(N+1,J)=V(IC1,J) | |
32107 | V(N+2,J)=V(IC1,J) | |
32108 | 290 CONTINUE | |
32109 | V(N+1,5)=0D0 | |
32110 | V(N+2,5)=0D0 | |
32111 | N=N+2 | |
32112 | ELSE | |
32113 | CALL PYERRM(3,'(PYPREP:) no match for collapsing cluster') | |
32114 | RETURN | |
32115 | ENDIF | |
32116 | ||
32117 | C...Mark collapsed system and store daughter pointers. Iterate. | |
32118 | 300 DO 310 I=IC1,IC2 | |
32119 | IF((K(I,1).EQ.1.OR.K(I,1).EQ.2).AND.KCHG(PYCOMP(K(I,2)),2).NE.0) | |
32120 | & THEN | |
32121 | K(I,1)=K(I,1)+10 | |
32122 | IF(MSTU(16).NE.2) THEN | |
32123 | K(I,4)=NSAV+1 | |
32124 | K(I,5)=NSAV+1 | |
32125 | ELSE | |
32126 | K(I,4)=NSAV+2 | |
32127 | K(I,5)=N | |
32128 | ENDIF | |
32129 | ENDIF | |
32130 | 310 CONTINUE | |
32131 | IF(N.LT.MSTU(4)-MSTU(32)-5) GOTO 140 | |
32132 | ||
32133 | C...Check flavours and invariant masses in parton systems. | |
32134 | 320 NP=0 | |
32135 | KFN=0 | |
32136 | KQS=0 | |
32137 | DO 330 J=1,5 | |
32138 | DPS(J)=0D0 | |
32139 | 330 CONTINUE | |
32140 | DO 360 I=MAX(1,IP),N | |
32141 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 360 | |
32142 | KC=PYCOMP(K(I,2)) | |
32143 | IF(KC.EQ.0) GOTO 360 | |
32144 | KQ=KCHG(KC,2)*ISIGN(1,K(I,2)) | |
32145 | IF(KQ.EQ.0) GOTO 360 | |
32146 | NP=NP+1 | |
32147 | IF(KQ.NE.2) THEN | |
32148 | KFN=KFN+1 | |
32149 | KQS=KQS+KQ | |
32150 | MSTJ(93)=1 | |
32151 | DPS(5)=DPS(5)+PYMASS(K(I,2)) | |
32152 | ENDIF | |
32153 | DO 340 J=1,4 | |
32154 | DPS(J)=DPS(J)+P(I,J) | |
32155 | 340 CONTINUE | |
32156 | IF(K(I,1).EQ.1) THEN | |
32157 | IF(NP.NE.1.AND.(KFN.EQ.1.OR.KFN.GE.3.OR.KQS.NE.0)) CALL | |
32158 | & PYERRM(2,'(PYPREP:) unphysical flavour combination') | |
32159 | IF(NP.NE.1.AND.DPS(4)**2-DPS(1)**2-DPS(2)**2-DPS(3)**2.LT. | |
32160 | & (0.9D0*PARJ(32)+DPS(5))**2) CALL PYERRM(3, | |
32161 | & '(PYPREP:) too small mass in jet system') | |
32162 | **sr | |
32163 | C IF(NP.NE.1.AND.DPS(4)**2-DPS(1)**2-DPS(2)**2-DPS(3)**2.LT. | |
32164 | C & (0.9D0*PARJ(32)+DPS(5))**2) | |
32165 | C & WRITE(*,*) 'I,DPS',I,DPS | |
32166 | ** | |
32167 | NP=0 | |
32168 | KFN=0 | |
32169 | KQS=0 | |
32170 | DO 350 J=1,5 | |
32171 | DPS(J)=0D0 | |
32172 | 350 CONTINUE | |
32173 | ENDIF | |
32174 | 360 CONTINUE | |
32175 | ||
32176 | RETURN | |
32177 | END | |
32178 | ||
32179 | C********************************************************************* | |
32180 | ||
32181 | C...PYSTRF | |
32182 | C...Handles the fragmentation of an arbitrary colour singlet | |
32183 | C...jet system according to the Lund string fragmentation model. | |
32184 | ||
32185 | SUBROUTINE PYSTRF(IP) | |
32186 | ||
32187 | C...Double precision and integer declarations. | |
32188 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
32189 | INTEGER PYK,PYCHGE,PYCOMP | |
32190 | C...Commonblocks. | |
32191 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
32192 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
32193 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
32194 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
32195 | C...Local arrays. All MOPS variables ends with MO | |
32196 | DIMENSION DPS(5),KFL(3),PMQ(3),PX(3),PY(3),GAM(3),IE(2),PR(2), | |
32197 | &IN(9),DHM(4),DHG(4),DP(5,5),IRANK(2),MJU(4),IJU(3),PJU(5,5), | |
32198 | &TJU(5),KFJH(2),NJS(2),KFJS(2),PJS(4,5),MSTU9T(8),PARU9T(8), | |
32199 | &INMO(9),PM2QMO(2),XTMO(2) | |
32200 | ||
32201 | C...Function: four-product of two vectors. | |
32202 | FOUR(I,J)=P(I,4)*P(J,4)-P(I,1)*P(J,1)-P(I,2)*P(J,2)-P(I,3)*P(J,3) | |
32203 | DFOUR(I,J)=DP(I,4)*DP(J,4)-DP(I,1)*DP(J,1)-DP(I,2)*DP(J,2)- | |
32204 | &DP(I,3)*DP(J,3) | |
32205 | ||
32206 | C...Reset counters. Identify parton system. | |
32207 | MSTJ(91)=0 | |
32208 | NSAV=N | |
32209 | MSTU90=MSTU(90) | |
32210 | NP=0 | |
32211 | KQSUM=0 | |
32212 | DO 100 J=1,5 | |
32213 | DPS(J)=0D0 | |
32214 | 100 CONTINUE | |
32215 | MJU(1)=0 | |
32216 | MJU(2)=0 | |
32217 | I=IP-1 | |
32218 | 110 I=I+1 | |
32219 | IF(I.GT.MIN(N,MSTU(4)-MSTU(32))) THEN | |
32220 | CALL PYERRM(12,'(PYSTRF:) failed to reconstruct jet system') | |
32221 | IF(MSTU(21).GE.1) RETURN | |
32222 | ENDIF | |
32223 | IF(K(I,1).NE.1.AND.K(I,1).NE.2.AND.K(I,1).NE.41) GOTO 110 | |
32224 | KC=PYCOMP(K(I,2)) | |
32225 | IF(KC.EQ.0) GOTO 110 | |
32226 | KQ=KCHG(KC,2)*ISIGN(1,K(I,2)) | |
32227 | IF(KQ.EQ.0) GOTO 110 | |
32228 | IF(N+5*NP+11.GT.MSTU(4)-MSTU(32)-5) THEN | |
32229 | CALL PYERRM(11,'(PYSTRF:) no more memory left in PYJETS') | |
32230 | IF(MSTU(21).GE.1) RETURN | |
32231 | ENDIF | |
32232 | ||
32233 | C...Take copy of partons to be considered. Check flavour sum. | |
32234 | NP=NP+1 | |
32235 | DO 120 J=1,5 | |
32236 | K(N+NP,J)=K(I,J) | |
32237 | P(N+NP,J)=P(I,J) | |
32238 | IF(J.NE.4) DPS(J)=DPS(J)+P(I,J) | |
32239 | 120 CONTINUE | |
32240 | DPS(4)=DPS(4)+SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
32241 | K(N+NP,3)=I | |
32242 | IF(KQ.NE.2) KQSUM=KQSUM+KQ | |
32243 | IF(K(I,1).EQ.41) THEN | |
32244 | KQSUM=KQSUM+2*KQ | |
32245 | IF(KQSUM.EQ.KQ) MJU(1)=N+NP | |
32246 | IF(KQSUM.NE.KQ) MJU(2)=N+NP | |
32247 | ENDIF | |
32248 | IF(K(I,1).EQ.2.OR.K(I,1).EQ.41) GOTO 110 | |
32249 | IF(KQSUM.NE.0) THEN | |
32250 | CALL PYERRM(12,'(PYSTRF:) unphysical flavour combination') | |
32251 | IF(MSTU(21).GE.1) RETURN | |
32252 | ENDIF | |
32253 | ||
32254 | C...Boost copied system to CM frame (for better numerical precision). | |
32255 | IF(ABS(DPS(3)).LT.0.99D0*DPS(4)) THEN | |
32256 | MBST=0 | |
32257 | MSTU(33)=1 | |
32258 | CALL PYROBO(N+1,N+NP,0D0,0D0,-DPS(1)/DPS(4),-DPS(2)/DPS(4), | |
32259 | & -DPS(3)/DPS(4)) | |
32260 | ELSE | |
32261 | MBST=1 | |
32262 | HHBZ=SQRT(MAX(1D-6,DPS(4)+DPS(3))/MAX(1D-6,DPS(4)-DPS(3))) | |
32263 | DO 130 I=N+1,N+NP | |
32264 | HHPMT=P(I,1)**2+P(I,2)**2+P(I,5)**2 | |
32265 | IF(P(I,3).GT.0D0) THEN | |
32266 | HHPEZ=(P(I,4)+P(I,3))/HHBZ | |
32267 | P(I,3)=0.5D0*(HHPEZ-HHPMT/HHPEZ) | |
32268 | P(I,4)=0.5D0*(HHPEZ+HHPMT/HHPEZ) | |
32269 | ELSE | |
32270 | HHPEZ=(P(I,4)-P(I,3))*HHBZ | |
32271 | P(I,3)=-0.5D0*(HHPEZ-HHPMT/HHPEZ) | |
32272 | P(I,4)=0.5D0*(HHPEZ+HHPMT/HHPEZ) | |
32273 | ENDIF | |
32274 | 130 CONTINUE | |
32275 | ENDIF | |
32276 | ||
32277 | C...Search for very nearby partons that may be recombined. | |
32278 | NTRYR=0 | |
32279 | PARU12=PARU(12) | |
32280 | PARU13=PARU(13) | |
32281 | MJU(3)=MJU(1) | |
32282 | MJU(4)=MJU(2) | |
32283 | NR=NP | |
32284 | 140 IF(NR.GE.3) THEN | |
32285 | PDRMIN=2D0*PARU12 | |
32286 | DO 150 I=N+1,N+NR | |
32287 | IF(I.EQ.N+NR.AND.IABS(K(N+1,2)).NE.21) GOTO 150 | |
32288 | I1=I+1 | |
32289 | IF(I.EQ.N+NR) I1=N+1 | |
32290 | IF(K(I,1).EQ.41.OR.K(I1,1).EQ.41) GOTO 150 | |
32291 | IF(MJU(1).NE.0.AND.I1.LT.MJU(1).AND.IABS(K(I1,2)).NE.21) | |
32292 | & GOTO 150 | |
32293 | IF(MJU(2).NE.0.AND.I.GT.MJU(2).AND.IABS(K(I,2)).NE.21) | |
32294 | & GOTO 150 | |
32295 | PAP=SQRT((P(I,1)**2+P(I,2)**2+P(I,3)**2)*(P(I1,1)**2+ | |
32296 | & P(I1,2)**2+P(I1,3)**2)) | |
32297 | PVP=P(I,1)*P(I1,1)+P(I,2)*P(I1,2)+P(I,3)*P(I1,3) | |
32298 | PDR=4D0*(PAP-PVP)**2/MAX(1D-6,PARU13**2*PAP+2D0*(PAP-PVP)) | |
32299 | IF(PDR.LT.PDRMIN) THEN | |
32300 | IR=I | |
32301 | PDRMIN=PDR | |
32302 | ENDIF | |
32303 | 150 CONTINUE | |
32304 | ||
32305 | C...Recombine very nearby partons to avoid machine precision problems. | |
32306 | IF(PDRMIN.LT.PARU12.AND.IR.EQ.N+NR) THEN | |
32307 | DO 160 J=1,4 | |
32308 | P(N+1,J)=P(N+1,J)+P(N+NR,J) | |
32309 | 160 CONTINUE | |
32310 | P(N+1,5)=SQRT(MAX(0D0,P(N+1,4)**2-P(N+1,1)**2-P(N+1,2)**2- | |
32311 | & P(N+1,3)**2)) | |
32312 | NR=NR-1 | |
32313 | GOTO 140 | |
32314 | ELSEIF(PDRMIN.LT.PARU12) THEN | |
32315 | DO 170 J=1,4 | |
32316 | P(IR,J)=P(IR,J)+P(IR+1,J) | |
32317 | 170 CONTINUE | |
32318 | P(IR,5)=SQRT(MAX(0D0,P(IR,4)**2-P(IR,1)**2-P(IR,2)**2- | |
32319 | & P(IR,3)**2)) | |
32320 | DO 190 I=IR+1,N+NR-1 | |
32321 | K(I,2)=K(I+1,2) | |
32322 | DO 180 J=1,5 | |
32323 | P(I,J)=P(I+1,J) | |
32324 | 180 CONTINUE | |
32325 | 190 CONTINUE | |
32326 | IF(IR.EQ.N+NR-1) K(IR,2)=K(N+NR,2) | |
32327 | NR=NR-1 | |
32328 | IF(MJU(1).GT.IR) MJU(1)=MJU(1)-1 | |
32329 | IF(MJU(2).GT.IR) MJU(2)=MJU(2)-1 | |
32330 | GOTO 140 | |
32331 | ENDIF | |
32332 | ENDIF | |
32333 | NTRYR=NTRYR+1 | |
32334 | ||
32335 | C...Reset particle counter. Skip ahead if no junctions are present; | |
32336 | C...this is usually the case! | |
32337 | NRS=MAX(5*NR+11,NP) | |
32338 | NTRY=0 | |
32339 | 200 NTRY=NTRY+1 | |
32340 | IF(NTRY.GT.100.AND.NTRYR.LE.4) THEN | |
32341 | PARU12=4D0*PARU12 | |
32342 | PARU13=2D0*PARU13 | |
32343 | GOTO 140 | |
32344 | ELSEIF(NTRY.GT.100) THEN | |
32345 | CALL PYERRM(14,'(PYSTRF:) caught in infinite loop') | |
32346 | IF(MSTU(21).GE.1) RETURN | |
32347 | ENDIF | |
32348 | I=N+NRS | |
32349 | MSTU(90)=MSTU90 | |
32350 | IF(MJU(1).EQ.0.AND.MJU(2).EQ.0) GOTO 580 | |
32351 | IF(MSTJ(12).GE.4) CALL PYERRM(29,'(PYSTRF:) sorry,'// | |
32352 | & ' junction strings not handled by MSTJ(12)>3 options') | |
32353 | DO 570 JT=1,2 | |
32354 | NJS(JT)=0 | |
32355 | IF(MJU(JT).EQ.0) GOTO 570 | |
32356 | JS=3-2*JT | |
32357 | ||
32358 | C...Find and sum up momentum on three sides of junction. Check flavours. | |
32359 | DO 220 IU=1,3 | |
32360 | IJU(IU)=0 | |
32361 | DO 210 J=1,5 | |
32362 | PJU(IU,J)=0D0 | |
32363 | 210 CONTINUE | |
32364 | 220 CONTINUE | |
32365 | IU=0 | |
32366 | DO 240 I1=N+1+(JT-1)*(NR-1),N+NR+(JT-1)*(1-NR),JS | |
32367 | IF(K(I1,2).NE.21.AND.IU.LE.2) THEN | |
32368 | IU=IU+1 | |
32369 | IJU(IU)=I1 | |
32370 | ENDIF | |
32371 | DO 230 J=1,4 | |
32372 | PJU(IU,J)=PJU(IU,J)+P(I1,J) | |
32373 | 230 CONTINUE | |
32374 | 240 CONTINUE | |
32375 | DO 250 IU=1,3 | |
32376 | PJU(IU,5)=SQRT(PJU(IU,1)**2+PJU(IU,2)**2+PJU(IU,3)**2) | |
32377 | 250 CONTINUE | |
32378 | IF(K(IJU(3),2)/100.NE.10*K(IJU(1),2)+K(IJU(2),2).AND. | |
32379 | & K(IJU(3),2)/100.NE.10*K(IJU(2),2)+K(IJU(1),2)) THEN | |
32380 | CALL PYERRM(12,'(PYSTRF:) unphysical flavour combination') | |
32381 | IF(MSTU(21).GE.1) RETURN | |
32382 | ENDIF | |
32383 | ||
32384 | C...Calculate (approximate) boost to rest frame of junction. | |
32385 | T12=(PJU(1,1)*PJU(2,1)+PJU(1,2)*PJU(2,2)+PJU(1,3)*PJU(2,3))/ | |
32386 | & (PJU(1,5)*PJU(2,5)) | |
32387 | T13=(PJU(1,1)*PJU(3,1)+PJU(1,2)*PJU(3,2)+PJU(1,3)*PJU(3,3))/ | |
32388 | & (PJU(1,5)*PJU(3,5)) | |
32389 | T23=(PJU(2,1)*PJU(3,1)+PJU(2,2)*PJU(3,2)+PJU(2,3)*PJU(3,3))/ | |
32390 | & (PJU(2,5)*PJU(3,5)) | |
32391 | T11=SQRT((2D0/3D0)*(1D0-T12)*(1D0-T13)/(1D0-T23)) | |
32392 | T22=SQRT((2D0/3D0)*(1D0-T12)*(1D0-T23)/(1D0-T13)) | |
32393 | TSQ=SQRT((2D0*T11*T22+T12-1D0)*(1D0+T12)) | |
32394 | T1F=(TSQ-T22*(1D0+T12))/(1D0-T12**2) | |
32395 | T2F=(TSQ-T11*(1D0+T12))/(1D0-T12**2) | |
32396 | DO 260 J=1,3 | |
32397 | TJU(J)=-(T1F*PJU(1,J)/PJU(1,5)+T2F*PJU(2,J)/PJU(2,5)) | |
32398 | 260 CONTINUE | |
32399 | TJU(4)=SQRT(1D0+TJU(1)**2+TJU(2)**2+TJU(3)**2) | |
32400 | DO 270 IU=1,3 | |
32401 | PJU(IU,5)=TJU(4)*PJU(IU,4)-TJU(1)*PJU(IU,1)-TJU(2)*PJU(IU,2)- | |
32402 | & TJU(3)*PJU(IU,3) | |
32403 | 270 CONTINUE | |
32404 | ||
32405 | C...Put junction at rest if motion could give inconsistencies. | |
32406 | IF(PJU(1,5)+PJU(2,5).GT.PJU(1,4)+PJU(2,4)) THEN | |
32407 | DO 280 J=1,3 | |
32408 | TJU(J)=0D0 | |
32409 | 280 CONTINUE | |
32410 | TJU(4)=1D0 | |
32411 | PJU(1,5)=PJU(1,4) | |
32412 | PJU(2,5)=PJU(2,4) | |
32413 | PJU(3,5)=PJU(3,4) | |
32414 | ENDIF | |
32415 | ||
32416 | C...Start preparing for fragmentation of two strings from junction. | |
32417 | ISTA=I | |
32418 | DO 550 IU=1,2 | |
32419 | NS=IJU(IU+1)-IJU(IU) | |
32420 | ||
32421 | C...Junction strings: find longitudinal string directions. | |
32422 | DO 310 IS=1,NS | |
32423 | IS1=IJU(IU)+IS-1 | |
32424 | IS2=IJU(IU)+IS | |
32425 | DO 290 J=1,5 | |
32426 | DP(1,J)=0.5D0*P(IS1,J) | |
32427 | IF(IS.EQ.1) DP(1,J)=P(IS1,J) | |
32428 | DP(2,J)=0.5D0*P(IS2,J) | |
32429 | IF(IS.EQ.NS) DP(2,J)=-PJU(IU,J) | |
32430 | 290 CONTINUE | |
32431 | IF(IS.EQ.NS) DP(2,4)=SQRT(PJU(IU,1)**2+PJU(IU,2)**2+ | |
32432 | & PJU(IU,3)**2) | |
32433 | IF(IS.EQ.NS) DP(2,5)=0D0 | |
32434 | DP(3,5)=DFOUR(1,1) | |
32435 | DP(4,5)=DFOUR(2,2) | |
32436 | DHKC=DFOUR(1,2) | |
32437 | IF(DP(3,5)+2D0*DHKC+DP(4,5).LE.0D0) THEN | |
32438 | DP(1,4)=SQRT(DP(1,1)**2+DP(1,2)**2+DP(1,3)**2) | |
32439 | DP(2,4)=SQRT(DP(2,1)**2+DP(2,2)**2+DP(2,3)**2) | |
32440 | DP(3,5)=0D0 | |
32441 | DP(4,5)=0D0 | |
32442 | DHKC=DFOUR(1,2) | |
32443 | ENDIF | |
32444 | DHKS=SQRT(DHKC**2-DP(3,5)*DP(4,5)) | |
32445 | DHK1=0.5D0*((DP(4,5)+DHKC)/DHKS-1D0) | |
32446 | DHK2=0.5D0*((DP(3,5)+DHKC)/DHKS-1D0) | |
32447 | IN1=N+NR+4*IS-3 | |
32448 | P(IN1,5)=SQRT(DP(3,5)+2D0*DHKC+DP(4,5)) | |
32449 | DO 300 J=1,4 | |
32450 | P(IN1,J)=(1D0+DHK1)*DP(1,J)-DHK2*DP(2,J) | |
32451 | P(IN1+1,J)=(1D0+DHK2)*DP(2,J)-DHK1*DP(1,J) | |
32452 | 300 CONTINUE | |
32453 | 310 CONTINUE | |
32454 | ||
32455 | C...Junction strings: initialize flavour, momentum and starting pos. | |
32456 | ISAV=I | |
32457 | MSTU91=MSTU(90) | |
32458 | 320 NTRY=NTRY+1 | |
32459 | IF(NTRY.GT.100.AND.NTRYR.LE.4) THEN | |
32460 | PARU12=4D0*PARU12 | |
32461 | PARU13=2D0*PARU13 | |
32462 | GOTO 140 | |
32463 | ELSEIF(NTRY.GT.100) THEN | |
32464 | CALL PYERRM(14,'(PYSTRF:) caught in infinite loop') | |
32465 | IF(MSTU(21).GE.1) RETURN | |
32466 | ENDIF | |
32467 | I=ISAV | |
32468 | MSTU(90)=MSTU91 | |
32469 | IRANKJ=0 | |
32470 | IE(1)=K(N+1+(JT/2)*(NP-1),3) | |
32471 | IN(4)=N+NR+1 | |
32472 | IN(5)=IN(4)+1 | |
32473 | IN(6)=N+NR+4*NS+1 | |
32474 | DO 340 JQ=1,2 | |
32475 | DO 330 IN1=N+NR+2+JQ,N+NR+4*NS-2+JQ,4 | |
32476 | P(IN1,1)=2-JQ | |
32477 | P(IN1,2)=JQ-1 | |
32478 | P(IN1,3)=1D0 | |
32479 | 330 CONTINUE | |
32480 | 340 CONTINUE | |
32481 | KFL(1)=K(IJU(IU),2) | |
32482 | PX(1)=0D0 | |
32483 | PY(1)=0D0 | |
32484 | GAM(1)=0D0 | |
32485 | DO 350 J=1,5 | |
32486 | PJU(IU+3,J)=0D0 | |
32487 | 350 CONTINUE | |
32488 | ||
32489 | C...Junction strings: find initial transverse directions. | |
32490 | DO 360 J=1,4 | |
32491 | DP(1,J)=P(IN(4),J) | |
32492 | DP(2,J)=P(IN(4)+1,J) | |
32493 | DP(3,J)=0D0 | |
32494 | DP(4,J)=0D0 | |
32495 | 360 CONTINUE | |
32496 | DP(1,4)=SQRT(DP(1,1)**2+DP(1,2)**2+DP(1,3)**2) | |
32497 | DP(2,4)=SQRT(DP(2,1)**2+DP(2,2)**2+DP(2,3)**2) | |
32498 | DP(5,1)=DP(1,1)/DP(1,4)-DP(2,1)/DP(2,4) | |
32499 | DP(5,2)=DP(1,2)/DP(1,4)-DP(2,2)/DP(2,4) | |
32500 | DP(5,3)=DP(1,3)/DP(1,4)-DP(2,3)/DP(2,4) | |
32501 | IF(DP(5,1)**2.LE.DP(5,2)**2+DP(5,3)**2) DP(3,1)=1D0 | |
32502 | IF(DP(5,1)**2.GT.DP(5,2)**2+DP(5,3)**2) DP(3,3)=1D0 | |
32503 | IF(DP(5,2)**2.LE.DP(5,1)**2+DP(5,3)**2) DP(4,2)=1D0 | |
32504 | IF(DP(5,2)**2.GT.DP(5,1)**2+DP(5,3)**2) DP(4,3)=1D0 | |
32505 | DHC12=DFOUR(1,2) | |
32506 | DHCX1=DFOUR(3,1)/DHC12 | |
32507 | DHCX2=DFOUR(3,2)/DHC12 | |
32508 | DHCXX=1D0/SQRT(1D0+2D0*DHCX1*DHCX2*DHC12) | |
32509 | DHCY1=DFOUR(4,1)/DHC12 | |
32510 | DHCY2=DFOUR(4,2)/DHC12 | |
32511 | DHCYX=DHCXX*(DHCX1*DHCY2+DHCX2*DHCY1)*DHC12 | |
32512 | DHCYY=1D0/SQRT(1D0+2D0*DHCY1*DHCY2*DHC12-DHCYX**2) | |
32513 | DO 370 J=1,4 | |
32514 | DP(3,J)=DHCXX*(DP(3,J)-DHCX2*DP(1,J)-DHCX1*DP(2,J)) | |
32515 | P(IN(6),J)=DP(3,J) | |
32516 | P(IN(6)+1,J)=DHCYY*(DP(4,J)-DHCY2*DP(1,J)-DHCY1*DP(2,J)- | |
32517 | & DHCYX*DP(3,J)) | |
32518 | 370 CONTINUE | |
32519 | ||
32520 | C...Junction strings: produce new particle, origin. | |
32521 | 380 I=I+1 | |
32522 | IF(2*I-NSAV.GE.MSTU(4)-MSTU(32)-5) THEN | |
32523 | CALL PYERRM(11,'(PYSTRF:) no more memory left in PYJETS') | |
32524 | IF(MSTU(21).GE.1) RETURN | |
32525 | ENDIF | |
32526 | IRANKJ=IRANKJ+1 | |
32527 | K(I,1)=1 | |
32528 | K(I,3)=IE(1) | |
32529 | K(I,4)=0 | |
32530 | K(I,5)=0 | |
32531 | ||
32532 | C...Junction strings: generate flavour, hadron, pT, z and Gamma. | |
32533 | 390 CALL PYKFDI(KFL(1),0,KFL(3),K(I,2)) | |
32534 | IF(K(I,2).EQ.0) GOTO 320 | |
32535 | IF(IRANKJ.EQ.1.AND.IABS(KFL(1)).LE.10.AND. | |
32536 | & IABS(KFL(3)).GT.10) THEN | |
32537 | IF(PYR(0).GT.PARJ(19)) GOTO 390 | |
32538 | ENDIF | |
32539 | P(I,5)=PYMASS(K(I,2)) | |
32540 | CALL PYPTDI(KFL(1),PX(3),PY(3)) | |
32541 | PR(1)=P(I,5)**2+(PX(1)+PX(3))**2+(PY(1)+PY(3))**2 | |
32542 | CALL PYZDIS(KFL(1),KFL(3),PR(1),Z) | |
32543 | IF(IABS(KFL(1)).GE.4.AND.IABS(KFL(1)).LE.8.AND. | |
32544 | & MSTU(90).LT.8) THEN | |
32545 | MSTU(90)=MSTU(90)+1 | |
32546 | MSTU(90+MSTU(90))=I | |
32547 | PARU(90+MSTU(90))=Z | |
32548 | ENDIF | |
32549 | GAM(3)=(1D0-Z)*(GAM(1)+PR(1)/Z) | |
32550 | DO 400 J=1,3 | |
32551 | IN(J)=IN(3+J) | |
32552 | 400 CONTINUE | |
32553 | ||
32554 | C...Junction strings: stepping within or from 'low' string region easy. | |
32555 | IF(IN(1)+1.EQ.IN(2).AND.Z*P(IN(1)+2,3)*P(IN(2)+2,3)* | |
32556 | & P(IN(1),5)**2.GE.PR(1)) THEN | |
32557 | P(IN(1)+2,4)=Z*P(IN(1)+2,3) | |
32558 | P(IN(2)+2,4)=PR(1)/(P(IN(1)+2,4)*P(IN(1),5)**2) | |
32559 | DO 410 J=1,4 | |
32560 | P(I,J)=(PX(1)+PX(3))*P(IN(3),J)+(PY(1)+PY(3))*P(IN(3)+1,J) | |
32561 | 410 CONTINUE | |
32562 | GOTO 500 | |
32563 | ELSEIF(IN(1)+1.EQ.IN(2)) THEN | |
32564 | P(IN(2)+2,4)=P(IN(2)+2,3) | |
32565 | P(IN(2)+2,1)=1D0 | |
32566 | IN(2)=IN(2)+4 | |
32567 | IF(IN(2).GT.N+NR+4*NS) GOTO 320 | |
32568 | IF(FOUR(IN(1),IN(2)).LE.1D-2) THEN | |
32569 | P(IN(1)+2,4)=P(IN(1)+2,3) | |
32570 | P(IN(1)+2,1)=0D0 | |
32571 | IN(1)=IN(1)+4 | |
32572 | ENDIF | |
32573 | ENDIF | |
32574 | ||
32575 | C...Junction strings: find new transverse directions. | |
32576 | 420 IF(IN(1).GT.N+NR+4*NS.OR.IN(2).GT.N+NR+4*NS.OR. | |
32577 | & IN(1).GT.IN(2)) GOTO 320 | |
32578 | IF(IN(1).NE.IN(4).OR.IN(2).NE.IN(5)) THEN | |
32579 | DO 430 J=1,4 | |
32580 | DP(1,J)=P(IN(1),J) | |
32581 | DP(2,J)=P(IN(2),J) | |
32582 | DP(3,J)=0D0 | |
32583 | DP(4,J)=0D0 | |
32584 | 430 CONTINUE | |
32585 | DP(1,4)=SQRT(DP(1,1)**2+DP(1,2)**2+DP(1,3)**2) | |
32586 | DP(2,4)=SQRT(DP(2,1)**2+DP(2,2)**2+DP(2,3)**2) | |
32587 | DHC12=DFOUR(1,2) | |
32588 | IF(DHC12.LE.1D-2) THEN | |
32589 | P(IN(1)+2,4)=P(IN(1)+2,3) | |
32590 | P(IN(1)+2,1)=0D0 | |
32591 | IN(1)=IN(1)+4 | |
32592 | GOTO 420 | |
32593 | ENDIF | |
32594 | IN(3)=N+NR+4*NS+5 | |
32595 | DP(5,1)=DP(1,1)/DP(1,4)-DP(2,1)/DP(2,4) | |
32596 | DP(5,2)=DP(1,2)/DP(1,4)-DP(2,2)/DP(2,4) | |
32597 | DP(5,3)=DP(1,3)/DP(1,4)-DP(2,3)/DP(2,4) | |
32598 | IF(DP(5,1)**2.LE.DP(5,2)**2+DP(5,3)**2) DP(3,1)=1D0 | |
32599 | IF(DP(5,1)**2.GT.DP(5,2)**2+DP(5,3)**2) DP(3,3)=1D0 | |
32600 | IF(DP(5,2)**2.LE.DP(5,1)**2+DP(5,3)**2) DP(4,2)=1D0 | |
32601 | IF(DP(5,2)**2.GT.DP(5,1)**2+DP(5,3)**2) DP(4,3)=1D0 | |
32602 | DHCX1=DFOUR(3,1)/DHC12 | |
32603 | DHCX2=DFOUR(3,2)/DHC12 | |
32604 | DHCXX=1D0/SQRT(1D0+2D0*DHCX1*DHCX2*DHC12) | |
32605 | DHCY1=DFOUR(4,1)/DHC12 | |
32606 | DHCY2=DFOUR(4,2)/DHC12 | |
32607 | DHCYX=DHCXX*(DHCX1*DHCY2+DHCX2*DHCY1)*DHC12 | |
32608 | DHCYY=1D0/SQRT(1D0+2D0*DHCY1*DHCY2*DHC12-DHCYX**2) | |
32609 | DO 440 J=1,4 | |
32610 | DP(3,J)=DHCXX*(DP(3,J)-DHCX2*DP(1,J)-DHCX1*DP(2,J)) | |
32611 | P(IN(3),J)=DP(3,J) | |
32612 | P(IN(3)+1,J)=DHCYY*(DP(4,J)-DHCY2*DP(1,J)-DHCY1*DP(2,J)- | |
32613 | & DHCYX*DP(3,J)) | |
32614 | 440 CONTINUE | |
32615 | C...Express pT with respect to new axes, if sensible. | |
32616 | PXP=-(PX(3)*FOUR(IN(6),IN(3))+PY(3)*FOUR(IN(6)+1,IN(3))) | |
32617 | PYP=-(PX(3)*FOUR(IN(6),IN(3)+1)+PY(3)*FOUR(IN(6)+1,IN(3)+1)) | |
32618 | IF(ABS(PXP**2+PYP**2-PX(3)**2-PY(3)**2).LT.0.01D0) THEN | |
32619 | PX(3)=PXP | |
32620 | PY(3)=PYP | |
32621 | ENDIF | |
32622 | ENDIF | |
32623 | ||
32624 | C...Junction strings: sum up known four-momentum, coefficients for m2. | |
32625 | DO 470 J=1,4 | |
32626 | DHG(J)=0D0 | |
32627 | P(I,J)=PX(1)*P(IN(6),J)+PY(1)*P(IN(6)+1,J)+PX(3)*P(IN(3),J)+ | |
32628 | & PY(3)*P(IN(3)+1,J) | |
32629 | DO 450 IN1=IN(4),IN(1)-4,4 | |
32630 | P(I,J)=P(I,J)+P(IN1+2,3)*P(IN1,J) | |
32631 | 450 CONTINUE | |
32632 | DO 460 IN2=IN(5),IN(2)-4,4 | |
32633 | P(I,J)=P(I,J)+P(IN2+2,3)*P(IN2,J) | |
32634 | 460 CONTINUE | |
32635 | 470 CONTINUE | |
32636 | DHM(1)=FOUR(I,I) | |
32637 | DHM(2)=2D0*FOUR(I,IN(1)) | |
32638 | DHM(3)=2D0*FOUR(I,IN(2)) | |
32639 | DHM(4)=2D0*FOUR(IN(1),IN(2)) | |
32640 | ||
32641 | C...Junction strings: find coefficients for Gamma expression. | |
32642 | DO 490 IN2=IN(1)+1,IN(2),4 | |
32643 | DO 480 IN1=IN(1),IN2-1,4 | |
32644 | DHC=2D0*FOUR(IN1,IN2) | |
32645 | DHG(1)=DHG(1)+P(IN1+2,1)*P(IN2+2,1)*DHC | |
32646 | IF(IN1.EQ.IN(1)) DHG(2)=DHG(2)-P(IN2+2,1)*DHC | |
32647 | IF(IN2.EQ.IN(2)) DHG(3)=DHG(3)+P(IN1+2,1)*DHC | |
32648 | IF(IN1.EQ.IN(1).AND.IN2.EQ.IN(2)) DHG(4)=DHG(4)-DHC | |
32649 | 480 CONTINUE | |
32650 | 490 CONTINUE | |
32651 | ||
32652 | C...Junction strings: solve (m2, Gamma) equation system for energies. | |
32653 | DHS1=DHM(3)*DHG(4)-DHM(4)*DHG(3) | |
32654 | IF(ABS(DHS1).LT.1D-4) GOTO 320 | |
32655 | DHS2=DHM(4)*(GAM(3)-DHG(1))-DHM(2)*DHG(3)-DHG(4)* | |
32656 | & (P(I,5)**2-DHM(1))+DHG(2)*DHM(3) | |
32657 | DHS3=DHM(2)*(GAM(3)-DHG(1))-DHG(2)*(P(I,5)**2-DHM(1)) | |
32658 | P(IN(2)+2,4)=0.5D0*(SQRT(MAX(0D0,DHS2**2-4D0*DHS1*DHS3))/ | |
32659 | & ABS(DHS1)-DHS2/DHS1) | |
32660 | IF(DHM(2)+DHM(4)*P(IN(2)+2,4).LE.0D0) GOTO 320 | |
32661 | P(IN(1)+2,4)=(P(I,5)**2-DHM(1)-DHM(3)*P(IN(2)+2,4))/ | |
32662 | & (DHM(2)+DHM(4)*P(IN(2)+2,4)) | |
32663 | ||
32664 | C...Junction strings: step to new region if necessary. | |
32665 | IF(P(IN(2)+2,4).GT.P(IN(2)+2,3)) THEN | |
32666 | P(IN(2)+2,4)=P(IN(2)+2,3) | |
32667 | P(IN(2)+2,1)=1D0 | |
32668 | IN(2)=IN(2)+4 | |
32669 | IF(IN(2).GT.N+NR+4*NS) GOTO 320 | |
32670 | IF(FOUR(IN(1),IN(2)).LE.1D-2) THEN | |
32671 | P(IN(1)+2,4)=P(IN(1)+2,3) | |
32672 | P(IN(1)+2,1)=0D0 | |
32673 | IN(1)=IN(1)+4 | |
32674 | ENDIF | |
32675 | GOTO 420 | |
32676 | ELSEIF(P(IN(1)+2,4).GT.P(IN(1)+2,3)) THEN | |
32677 | P(IN(1)+2,4)=P(IN(1)+2,3) | |
32678 | P(IN(1)+2,1)=0D0 | |
32679 | IN(1)=IN(1)+JS | |
32680 | GOTO 890 | |
32681 | ENDIF | |
32682 | ||
32683 | C...Junction strings: particle four-momentum, remainder, loop back. | |
32684 | 500 DO 510 J=1,4 | |
32685 | P(I,J)=P(I,J)+P(IN(1)+2,4)*P(IN(1),J)+ | |
32686 | & P(IN(2)+2,4)*P(IN(2),J) | |
32687 | PJU(IU+3,J)=PJU(IU+3,J)+P(I,J) | |
32688 | 510 CONTINUE | |
32689 | IF(P(I,4).LT.P(I,5)) GOTO 320 | |
32690 | PJU(IU+3,5)=TJU(4)*PJU(IU+3,4)-TJU(1)*PJU(IU+3,1)- | |
32691 | & TJU(2)*PJU(IU+3,2)-TJU(3)*PJU(IU+3,3) | |
32692 | IF(PJU(IU+3,5).LT.PJU(IU,5)) THEN | |
32693 | KFL(1)=-KFL(3) | |
32694 | PX(1)=-PX(3) | |
32695 | PY(1)=-PY(3) | |
32696 | GAM(1)=GAM(3) | |
32697 | IF(IN(3).NE.IN(6)) THEN | |
32698 | DO 520 J=1,4 | |
32699 | P(IN(6),J)=P(IN(3),J) | |
32700 | P(IN(6)+1,J)=P(IN(3)+1,J) | |
32701 | 520 CONTINUE | |
32702 | ENDIF | |
32703 | DO 530 JQ=1,2 | |
32704 | IN(3+JQ)=IN(JQ) | |
32705 | P(IN(JQ)+2,3)=P(IN(JQ)+2,3)-P(IN(JQ)+2,4) | |
32706 | P(IN(JQ)+2,1)=P(IN(JQ)+2,1)-(3-2*JQ)*P(IN(JQ)+2,4) | |
32707 | 530 CONTINUE | |
32708 | GOTO 380 | |
32709 | ENDIF | |
32710 | ||
32711 | C...Junction strings: save quantities left after each string. | |
32712 | IF(IABS(KFL(1)).GT.10) GOTO 320 | |
32713 | I=I-1 | |
32714 | KFJH(IU)=KFL(1) | |
32715 | DO 540 J=1,4 | |
32716 | PJU(IU+3,J)=PJU(IU+3,J)-P(I+1,J) | |
32717 | 540 CONTINUE | |
32718 | 550 CONTINUE | |
32719 | ||
32720 | C...Junction strings: put together to new effective string endpoint. | |
32721 | NJS(JT)=I-ISTA | |
32722 | KFJS(JT)=K(K(MJU(JT+2),3),2) | |
32723 | KFLS=2*INT(PYR(0)+3D0*PARJ(4)/(1D0+3D0*PARJ(4)))+1 | |
32724 | IF(KFJH(1).EQ.KFJH(2)) KFLS=3 | |
32725 | IF(ISTA.NE.I) KFJS(JT)=ISIGN(1000*MAX(IABS(KFJH(1)), | |
32726 | & IABS(KFJH(2)))+100*MIN(IABS(KFJH(1)),IABS(KFJH(2)))+ | |
32727 | & KFLS,KFJH(1)) | |
32728 | DO 560 J=1,4 | |
32729 | PJS(JT,J)=PJU(1,J)+PJU(2,J)+P(MJU(JT),J) | |
32730 | PJS(JT+2,J)=PJU(4,J)+PJU(5,J) | |
32731 | 560 CONTINUE | |
32732 | PJS(JT,5)=SQRT(MAX(0D0,PJS(JT,4)**2-PJS(JT,1)**2-PJS(JT,2)**2- | |
32733 | & PJS(JT,3)**2)) | |
32734 | 570 CONTINUE | |
32735 | ||
32736 | C...Open versus closed strings. Choose breakup region for latter. | |
32737 | 580 IF(MJU(1).NE.0.AND.MJU(2).NE.0) THEN | |
32738 | NS=MJU(2)-MJU(1) | |
32739 | NB=MJU(1)-N | |
32740 | ELSEIF(MJU(1).NE.0) THEN | |
32741 | NS=N+NR-MJU(1) | |
32742 | NB=MJU(1)-N | |
32743 | ELSEIF(MJU(2).NE.0) THEN | |
32744 | NS=MJU(2)-N | |
32745 | NB=1 | |
32746 | ELSEIF(IABS(K(N+1,2)).NE.21) THEN | |
32747 | NS=NR-1 | |
32748 | NB=1 | |
32749 | ELSE | |
32750 | NS=NR+1 | |
32751 | W2SUM=0D0 | |
32752 | DO 590 IS=1,NR | |
32753 | P(N+NR+IS,1)=0.5D0*FOUR(N+IS,N+IS+1-NR*(IS/NR)) | |
32754 | W2SUM=W2SUM+P(N+NR+IS,1) | |
32755 | 590 CONTINUE | |
32756 | W2RAN=PYR(0)*W2SUM | |
32757 | NB=0 | |
32758 | 600 NB=NB+1 | |
32759 | W2SUM=W2SUM-P(N+NR+NB,1) | |
32760 | IF(W2SUM.GT.W2RAN.AND.NB.LT.NR) GOTO 600 | |
32761 | ENDIF | |
32762 | ||
32763 | C...Find longitudinal string directions (i.e. lightlike four-vectors). | |
32764 | DO 630 IS=1,NS | |
32765 | IS1=N+IS+NB-1-NR*((IS+NB-2)/NR) | |
32766 | IS2=N+IS+NB-NR*((IS+NB-1)/NR) | |
32767 | DO 610 J=1,5 | |
32768 | DP(1,J)=P(IS1,J) | |
32769 | IF(IABS(K(IS1,2)).EQ.21) DP(1,J)=0.5D0*DP(1,J) | |
32770 | IF(IS1.EQ.MJU(1)) DP(1,J)=PJS(1,J)-PJS(3,J) | |
32771 | DP(2,J)=P(IS2,J) | |
32772 | IF(IABS(K(IS2,2)).EQ.21) DP(2,J)=0.5D0*DP(2,J) | |
32773 | IF(IS2.EQ.MJU(2)) DP(2,J)=PJS(2,J)-PJS(4,J) | |
32774 | 610 CONTINUE | |
32775 | DP(3,5)=DFOUR(1,1) | |
32776 | DP(4,5)=DFOUR(2,2) | |
32777 | DHKC=DFOUR(1,2) | |
32778 | IF(DP(3,5)+2D0*DHKC+DP(4,5).LE.0D0) THEN | |
32779 | DP(3,5)=DP(1,5)**2 | |
32780 | DP(4,5)=DP(2,5)**2 | |
32781 | DP(1,4)=SQRT(DP(1,1)**2+DP(1,2)**2+DP(1,3)**2+DP(1,5)**2) | |
32782 | DP(2,4)=SQRT(DP(2,1)**2+DP(2,2)**2+DP(2,3)**2+DP(2,5)**2) | |
32783 | DHKC=DFOUR(1,2) | |
32784 | ENDIF | |
32785 | DHKS=SQRT(DHKC**2-DP(3,5)*DP(4,5)) | |
32786 | DHK1=0.5D0*((DP(4,5)+DHKC)/DHKS-1D0) | |
32787 | DHK2=0.5D0*((DP(3,5)+DHKC)/DHKS-1D0) | |
32788 | IN1=N+NR+4*IS-3 | |
32789 | P(IN1,5)=SQRT(DP(3,5)+2D0*DHKC+DP(4,5)) | |
32790 | DO 620 J=1,4 | |
32791 | P(IN1,J)=(1D0+DHK1)*DP(1,J)-DHK2*DP(2,J) | |
32792 | P(IN1+1,J)=(1D0+DHK2)*DP(2,J)-DHK1*DP(1,J) | |
32793 | 620 CONTINUE | |
32794 | 630 CONTINUE | |
32795 | ||
32796 | C...Begin initialization: sum up energy, set starting position. | |
32797 | ISAV=I | |
32798 | MSTU91=MSTU(90) | |
32799 | 640 NTRY=NTRY+1 | |
32800 | IF(NTRY.GT.100.AND.NTRYR.LE.4) THEN | |
32801 | PARU12=4D0*PARU12 | |
32802 | PARU13=2D0*PARU13 | |
32803 | GOTO 140 | |
32804 | ELSEIF(NTRY.GT.100) THEN | |
32805 | CALL PYERRM(14,'(PYSTRF:) caught in infinite loop') | |
32806 | IF(MSTU(21).GE.1) RETURN | |
32807 | ENDIF | |
32808 | I=ISAV | |
32809 | MSTU(90)=MSTU91 | |
32810 | DO 660 J=1,4 | |
32811 | P(N+NRS,J)=0D0 | |
32812 | DO 650 IS=1,NR | |
32813 | P(N+NRS,J)=P(N+NRS,J)+P(N+IS,J) | |
32814 | 650 CONTINUE | |
32815 | 660 CONTINUE | |
32816 | DO 680 JT=1,2 | |
32817 | IRANK(JT)=0 | |
32818 | IF(MJU(JT).NE.0) IRANK(JT)=NJS(JT) | |
32819 | IF(NS.GT.NR) IRANK(JT)=1 | |
32820 | IE(JT)=K(N+1+(JT/2)*(NP-1),3) | |
32821 | IN(3*JT+1)=N+NR+1+4*(JT/2)*(NS-1) | |
32822 | IN(3*JT+2)=IN(3*JT+1)+1 | |
32823 | IN(3*JT+3)=N+NR+4*NS+2*JT-1 | |
32824 | DO 670 IN1=N+NR+2+JT,N+NR+4*NS-2+JT,4 | |
32825 | P(IN1,1)=2-JT | |
32826 | P(IN1,2)=JT-1 | |
32827 | P(IN1,3)=1D0 | |
32828 | 670 CONTINUE | |
32829 | 680 CONTINUE | |
32830 | C.. MOPS variables and switches | |
32831 | NRVMO=0 | |
32832 | XBMO=1D0 | |
32833 | MSTU(121)=0 | |
32834 | MSTU(122)=0 | |
32835 | ||
32836 | C...Initialize flavour and pT variables for open string. | |
32837 | IF(NS.LT.NR) THEN | |
32838 | PX(1)=0D0 | |
32839 | PY(1)=0D0 | |
32840 | IF(NS.EQ.1.AND.MJU(1)+MJU(2).EQ.0) CALL PYPTDI(0,PX(1),PY(1)) | |
32841 | PX(2)=-PX(1) | |
32842 | PY(2)=-PY(1) | |
32843 | DO 690 JT=1,2 | |
32844 | KFL(JT)=K(IE(JT),2) | |
32845 | IF(MJU(JT).NE.0) KFL(JT)=KFJS(JT) | |
32846 | MSTJ(93)=1 | |
32847 | PMQ(JT)=PYMASS(KFL(JT)) | |
32848 | GAM(JT)=0D0 | |
32849 | 690 CONTINUE | |
32850 | ||
32851 | C...Closed string: random initial breakup flavour, pT and vertex. | |
32852 | ELSE | |
32853 | KFL(3)=INT(1D0+(2D0+PARJ(2))*PYR(0))*(-1)**INT(PYR(0)+0.5D0) | |
32854 | IBMO=0 | |
32855 | 700 CALL PYKFDI(KFL(3),0,KFL(1),KDUMP) | |
32856 | C.. Closed string: first vertex diq attempt => enforced second | |
32857 | C.. vertex diq | |
32858 | IF(IABS(KFL(1)).GT.10)THEN | |
32859 | IBMO=1 | |
32860 | MSTU(121)=0 | |
32861 | GOTO 700 | |
32862 | ENDIF | |
32863 | IF(IBMO.EQ.1) MSTU(121)=-1 | |
32864 | KFL(2)=-KFL(1) | |
32865 | CALL PYPTDI(KFL(1),PX(1),PY(1)) | |
32866 | PX(2)=-PX(1) | |
32867 | PY(2)=-PY(1) | |
32868 | PR3=MIN(25D0,0.1D0*P(N+NR+1,5)**2) | |
32869 | 710 CALL PYZDIS(KFL(1),KFL(2),PR3,Z) | |
32870 | ZR=PR3/(Z*P(N+NR+1,5)**2) | |
32871 | IF(ZR.GE.1D0) GOTO 710 | |
32872 | DO 720 JT=1,2 | |
32873 | MSTJ(93)=1 | |
32874 | PMQ(JT)=PYMASS(KFL(JT)) | |
32875 | GAM(JT)=PR3*(1D0-Z)/Z | |
32876 | IN1=N+NR+3+4*(JT/2)*(NS-1) | |
32877 | P(IN1,JT)=1D0-Z | |
32878 | P(IN1,3-JT)=JT-1 | |
32879 | P(IN1,3)=(2-JT)*(1D0-Z)+(JT-1)*Z | |
32880 | P(IN1+1,JT)=ZR | |
32881 | P(IN1+1,3-JT)=2-JT | |
32882 | P(IN1+1,3)=(2-JT)*(1D0-ZR)+(JT-1)*ZR | |
32883 | 720 CONTINUE | |
32884 | ENDIF | |
32885 | C.. MOPS variables | |
32886 | DO 730 JT=1,2 | |
32887 | XTMO(JT)=1D0 | |
32888 | PM2QMO(JT)=PMQ(JT)**2 | |
32889 | IF(IABS(KFL(JT)).GT.10) PM2QMO(JT)=0D0 | |
32890 | 730 CONTINUE | |
32891 | ||
32892 | C...Find initial transverse directions (i.e. spacelike four-vectors). | |
32893 | DO 770 JT=1,2 | |
32894 | IF(JT.EQ.1.OR.NS.EQ.NR-1) THEN | |
32895 | IN1=IN(3*JT+1) | |
32896 | IN3=IN(3*JT+3) | |
32897 | DO 740 J=1,4 | |
32898 | DP(1,J)=P(IN1,J) | |
32899 | DP(2,J)=P(IN1+1,J) | |
32900 | DP(3,J)=0D0 | |
32901 | DP(4,J)=0D0 | |
32902 | 740 CONTINUE | |
32903 | DP(1,4)=SQRT(DP(1,1)**2+DP(1,2)**2+DP(1,3)**2) | |
32904 | DP(2,4)=SQRT(DP(2,1)**2+DP(2,2)**2+DP(2,3)**2) | |
32905 | DP(5,1)=DP(1,1)/DP(1,4)-DP(2,1)/DP(2,4) | |
32906 | DP(5,2)=DP(1,2)/DP(1,4)-DP(2,2)/DP(2,4) | |
32907 | DP(5,3)=DP(1,3)/DP(1,4)-DP(2,3)/DP(2,4) | |
32908 | IF(DP(5,1)**2.LE.DP(5,2)**2+DP(5,3)**2) DP(3,1)=1D0 | |
32909 | IF(DP(5,1)**2.GT.DP(5,2)**2+DP(5,3)**2) DP(3,3)=1D0 | |
32910 | IF(DP(5,2)**2.LE.DP(5,1)**2+DP(5,3)**2) DP(4,2)=1D0 | |
32911 | IF(DP(5,2)**2.GT.DP(5,1)**2+DP(5,3)**2) DP(4,3)=1D0 | |
32912 | DHC12=DFOUR(1,2) | |
32913 | DHCX1=DFOUR(3,1)/DHC12 | |
32914 | DHCX2=DFOUR(3,2)/DHC12 | |
32915 | DHCXX=1D0/SQRT(1D0+2D0*DHCX1*DHCX2*DHC12) | |
32916 | DHCY1=DFOUR(4,1)/DHC12 | |
32917 | DHCY2=DFOUR(4,2)/DHC12 | |
32918 | DHCYX=DHCXX*(DHCX1*DHCY2+DHCX2*DHCY1)*DHC12 | |
32919 | DHCYY=1D0/SQRT(1D0+2D0*DHCY1*DHCY2*DHC12-DHCYX**2) | |
32920 | DO 750 J=1,4 | |
32921 | DP(3,J)=DHCXX*(DP(3,J)-DHCX2*DP(1,J)-DHCX1*DP(2,J)) | |
32922 | P(IN3,J)=DP(3,J) | |
32923 | P(IN3+1,J)=DHCYY*(DP(4,J)-DHCY2*DP(1,J)-DHCY1*DP(2,J)- | |
32924 | & DHCYX*DP(3,J)) | |
32925 | 750 CONTINUE | |
32926 | ELSE | |
32927 | DO 760 J=1,4 | |
32928 | P(IN3+2,J)=P(IN3,J) | |
32929 | P(IN3+3,J)=P(IN3+1,J) | |
32930 | 760 CONTINUE | |
32931 | ENDIF | |
32932 | 770 CONTINUE | |
32933 | ||
32934 | C...Remove energy used up in junction string fragmentation. | |
32935 | IF(MJU(1)+MJU(2).GT.0) THEN | |
32936 | DO 790 JT=1,2 | |
32937 | IF(NJS(JT).EQ.0) GOTO 790 | |
32938 | DO 780 J=1,4 | |
32939 | P(N+NRS,J)=P(N+NRS,J)-PJS(JT+2,J) | |
32940 | 780 CONTINUE | |
32941 | 790 CONTINUE | |
32942 | ENDIF | |
32943 | ||
32944 | C...Produce new particle: side, origin. | |
32945 | 800 I=I+1 | |
32946 | IF(2*I-NSAV.GE.MSTU(4)-MSTU(32)-5) THEN | |
32947 | CALL PYERRM(11,'(PYSTRF:) no more memory left in PYJETS') | |
32948 | IF(MSTU(21).GE.1) RETURN | |
32949 | ENDIF | |
32950 | C.. New side priority for popcorn systems | |
32951 | IF(MSTU(121).LE.0)THEN | |
32952 | JT=1.5D0+PYR(0) | |
32953 | IF(IABS(KFL(3-JT)).GT.10) JT=3-JT | |
32954 | IF(IABS(KFL(3-JT)).GE.4.AND.IABS(KFL(3-JT)).LE.8) JT=3-JT | |
32955 | ENDIF | |
32956 | JR=3-JT | |
32957 | JS=3-2*JT | |
32958 | IRANK(JT)=IRANK(JT)+1 | |
32959 | K(I,1)=1 | |
32960 | K(I,3)=IE(JT) | |
32961 | K(I,4)=0 | |
32962 | K(I,5)=0 | |
32963 | ||
32964 | C...Generate flavour, hadron and pT. | |
32965 | 810 CONTINUE | |
32966 | CALL PYKFDI(KFL(JT),0,KFL(3),K(I,2)) | |
32967 | IF(K(I,2).EQ.0) GOTO 640 | |
32968 | MU90MO=MSTU(90) | |
32969 | IF(MSTU(121).EQ.-1) GOTO 840 | |
32970 | IF(IRANK(JT).EQ.1.AND.IABS(KFL(JT)).LE.10.AND. | |
32971 | &IABS(KFL(3)).GT.10) THEN | |
32972 | IF(PYR(0).GT.PARJ(19)) GOTO 810 | |
32973 | ENDIF | |
32974 | P(I,5)=PYMASS(K(I,2)) | |
32975 | CALL PYPTDI(KFL(JT),PX(3),PY(3)) | |
32976 | PR(JT)=P(I,5)**2+(PX(JT)+PX(3))**2+(PY(JT)+PY(3))**2 | |
32977 | ||
32978 | C...Final hadrons for small invariant mass. | |
32979 | MSTJ(93)=1 | |
32980 | PMQ(3)=PYMASS(KFL(3)) | |
32981 | PARJST=PARJ(33) | |
32982 | IF(MSTJ(11).EQ.2) PARJST=PARJ(34) | |
32983 | WMIN=PARJST+PMQ(1)+PMQ(2)+PARJ(36)*PMQ(3) | |
32984 | IF(IABS(KFL(JT)).GT.10.AND.IABS(KFL(3)).GT.10) WMIN= | |
32985 | &WMIN-0.5D0*PARJ(36)*PMQ(3) | |
32986 | WREM2=FOUR(N+NRS,N+NRS) | |
32987 | IF(WREM2.LT.0.10D0) GOTO 640 | |
32988 | IF(WREM2.LT.MAX(WMIN*(1D0+(2D0*PYR(0)-1D0)*PARJ(37)), | |
32989 | &PARJ(32)+PMQ(1)+PMQ(2))**2) GOTO 1010 | |
32990 | ||
32991 | C...Choose z, which gives Gamma. Shift z for heavy flavours. | |
32992 | CALL PYZDIS(KFL(JT),KFL(3),PR(JT),Z) | |
32993 | IF(IABS(KFL(JT)).GE.4.AND.IABS(KFL(JT)).LE.8.AND. | |
32994 | &MSTU(90).LT.8) THEN | |
32995 | MSTU(90)=MSTU(90)+1 | |
32996 | MSTU(90+MSTU(90))=I | |
32997 | PARU(90+MSTU(90))=Z | |
32998 | ENDIF | |
32999 | KFL1A=IABS(KFL(1)) | |
33000 | KFL2A=IABS(KFL(2)) | |
33001 | IF(MAX(MOD(KFL1A,10),MOD(KFL1A/1000,10),MOD(KFL2A,10), | |
33002 | &MOD(KFL2A/1000,10)).GE.4) THEN | |
33003 | PR(JR)=(PMQ(JR)+PMQ(3))**2+(PX(JR)-PX(3))**2+(PY(JR)-PY(3))**2 | |
33004 | PW12=SQRT(MAX(0D0,(WREM2-PR(1)-PR(2))**2-4D0*PR(1)*PR(2))) | |
33005 | Z=(WREM2+PR(JT)-PR(JR)+PW12*(2D0*Z-1D0))/(2D0*WREM2) | |
33006 | PR(JR)=(PMQ(JR)+PARJST)**2+(PX(JR)-PX(3))**2+(PY(JR)-PY(3))**2 | |
33007 | IF((1D0-Z)*(WREM2-PR(JT)/Z).LT.PR(JR)) GOTO 1010 | |
33008 | ENDIF | |
33009 | GAM(3)=(1D0-Z)*(GAM(JT)+PR(JT)/Z) | |
33010 | ||
33011 | C.. MOPS baryon model modification | |
33012 | XTMO3=(1D0-Z)*XTMO(JT) | |
33013 | IF(IABS(KFL(3)).LE.10) NRVMO=0 | |
33014 | IF(IABS(KFL(3)).GT.10.AND.MSTJ(12).GE.4) THEN | |
33015 | GTSTMO=1D0 | |
33016 | PTSTMO=1D0 | |
33017 | RTSTMO=PYR(0) | |
33018 | IF(IABS(KFL(JT)).LE.10)THEN | |
33019 | XBMO=MIN(XTMO3,1D0-(2D-10)) | |
33020 | GBMO=GAM(3) | |
33021 | PMMO=0D0 | |
33022 | PGMO=GBMO+LOG(1D0-XBMO)*PM2QMO(JT) | |
33023 | GTSTMO=1D0-PARF(192)**PGMO | |
33024 | ELSE | |
33025 | IF(IRANK(JT).EQ.1) THEN | |
33026 | GBMO=GAM(JT) | |
33027 | PMMO=0D0 | |
33028 | XBMO=1D0 | |
33029 | ENDIF | |
33030 | IF(XBMO.LT.1D0-(1D-10))THEN | |
33031 | PGNMO=GBMO*XTMO3/XBMO+PM2QMO(JT)*LOG(1D0-XTMO3) | |
33032 | GTSTMO=(1D0-PARF(192)**PGNMO)/(1D0-PARF(192)**PGMO) | |
33033 | PGMO=PGNMO | |
33034 | ENDIF | |
33035 | IF(MSTJ(12).GE.5)THEN | |
33036 | PMNMO=SQRT((XBMO-XTMO3)*(GAM(3)/XTMO3-GBMO/XBMO)) | |
33037 | PMMO=PMMO+PMAS(PYCOMP(K(I,2)),1)-PMAS(PYCOMP(K(I,2)),3) | |
33038 | PTSTMO=EXP((PMMO-PMNMO)*PARF(193)) | |
33039 | PMMO=PMNMO | |
33040 | ENDIF | |
33041 | ENDIF | |
33042 | ||
33043 | C.. MOPS Accepting popcorn system hadron. | |
33044 | IF(PTSTMO*GTSTMO.GT.RTSTMO) THEN | |
33045 | IF(IRANK(JT).EQ.1.OR.IABS(KFL(JT)).LE.10) THEN | |
33046 | NRVMO=I-N-NR | |
33047 | IF(I+NRVMO.GT.MSTU(4)-MSTU(32)-5) THEN | |
33048 | CALL PYERRM(11, | |
33049 | & '(PYSTRF:) no more memory left in PYJETS') | |
33050 | IF(MSTU(21).GE.1) RETURN | |
33051 | ENDIF | |
33052 | IMO=I | |
33053 | KFLMO=KFL(JT) | |
33054 | PMQMO=PMQ(JT) | |
33055 | PXMO=PX(JT) | |
33056 | PYMO=PY(JT) | |
33057 | GAMMO=GAM(JT) | |
33058 | IRMO=IRANK(JT) | |
33059 | XMO=XTMO(JT) | |
33060 | DO 830 J=1,9 | |
33061 | IF(J.LE.5) THEN | |
33062 | DO 820 LINE=1,I-N-NR | |
33063 | P(MSTU(4)-MSTU(32)-LINE,J)=P(N+NR+LINE,J) | |
33064 | K(MSTU(4)-MSTU(32)-LINE,J)=K(N+NR+LINE,J) | |
33065 | 820 CONTINUE | |
33066 | ENDIF | |
33067 | INMO(J)=IN(J) | |
33068 | 830 CONTINUE | |
33069 | ENDIF | |
33070 | ELSE | |
33071 | C..Reject popcorn system, flag=-1 if enforcing new one | |
33072 | MSTU(121)=-1 | |
33073 | IF(PTSTMO.GT.RTSTMO) MSTU(121)=-2 | |
33074 | ENDIF | |
33075 | ENDIF | |
33076 | ||
33077 | ||
33078 | C..Lift restoring string outside MOPS block | |
33079 | 840 IF(MSTU(121).LT.0) THEN | |
33080 | IF(MSTU(121).EQ.-2) MSTU(121)=0 | |
33081 | MSTU(90)=MU90MO | |
33082 | NRVMO=0 | |
33083 | IF(IRANK(JT).EQ.1.OR.IABS(KFL(JT)).LE.10) GOTO 810 | |
33084 | I=IMO | |
33085 | KFL(JT)=KFLMO | |
33086 | PMQ(JT)=PMQMO | |
33087 | PX(JT)=PXMO | |
33088 | PY(JT)=PYMO | |
33089 | GAM(JT)=GAMMO | |
33090 | IRANK(JT)=IRMO | |
33091 | XTMO(JT)=XMO | |
33092 | DO 860 J=1,9 | |
33093 | IF(J.LE.5) THEN | |
33094 | DO 850 LINE=1,I-N-NR | |
33095 | P(N+NR+LINE,J)=P(MSTU(4)-MSTU(32)-LINE,J) | |
33096 | K(N+NR+LINE,J)=K(MSTU(4)-MSTU(32)-LINE,J) | |
33097 | 850 CONTINUE | |
33098 | ENDIF | |
33099 | IN(J)=INMO(J) | |
33100 | 860 CONTINUE | |
33101 | GOTO 810 | |
33102 | ENDIF | |
33103 | XTMO(JT)=XTMO3 | |
33104 | C.. MOPS end of modification | |
33105 | ||
33106 | DO 870 J=1,3 | |
33107 | IN(J)=IN(3*JT+J) | |
33108 | 870 CONTINUE | |
33109 | ||
33110 | C...Stepping within or from 'low' string region easy. | |
33111 | IF(IN(1)+1.EQ.IN(2).AND.Z*P(IN(1)+2,3)*P(IN(2)+2,3)* | |
33112 | &P(IN(1),5)**2.GE.PR(JT)) THEN | |
33113 | P(IN(JT)+2,4)=Z*P(IN(JT)+2,3) | |
33114 | P(IN(JR)+2,4)=PR(JT)/(P(IN(JT)+2,4)*P(IN(1),5)**2) | |
33115 | DO 880 J=1,4 | |
33116 | P(I,J)=(PX(JT)+PX(3))*P(IN(3),J)+(PY(JT)+PY(3))*P(IN(3)+1,J) | |
33117 | 880 CONTINUE | |
33118 | GOTO 970 | |
33119 | ELSEIF(IN(1)+1.EQ.IN(2)) THEN | |
33120 | P(IN(JR)+2,4)=P(IN(JR)+2,3) | |
33121 | P(IN(JR)+2,JT)=1D0 | |
33122 | IN(JR)=IN(JR)+4*JS | |
33123 | IF(JS*IN(JR).GT.JS*IN(4*JR)) GOTO 640 | |
33124 | IF(FOUR(IN(1),IN(2)).LE.1D-2) THEN | |
33125 | P(IN(JT)+2,4)=P(IN(JT)+2,3) | |
33126 | P(IN(JT)+2,JT)=0D0 | |
33127 | IN(JT)=IN(JT)+4*JS | |
33128 | ENDIF | |
33129 | ENDIF | |
33130 | ||
33131 | C...Find new transverse directions (i.e. spacelike string vectors). | |
33132 | 890 IF(JS*IN(1).GT.JS*IN(3*JR+1).OR.JS*IN(2).GT.JS*IN(3*JR+2).OR. | |
33133 | &IN(1).GT.IN(2)) GOTO 640 | |
33134 | IF(IN(1).NE.IN(3*JT+1).OR.IN(2).NE.IN(3*JT+2)) THEN | |
33135 | DO 900 J=1,4 | |
33136 | DP(1,J)=P(IN(1),J) | |
33137 | DP(2,J)=P(IN(2),J) | |
33138 | DP(3,J)=0D0 | |
33139 | DP(4,J)=0D0 | |
33140 | 900 CONTINUE | |
33141 | DP(1,4)=SQRT(DP(1,1)**2+DP(1,2)**2+DP(1,3)**2) | |
33142 | DP(2,4)=SQRT(DP(2,1)**2+DP(2,2)**2+DP(2,3)**2) | |
33143 | DHC12=DFOUR(1,2) | |
33144 | IF(DHC12.LE.1D-2) THEN | |
33145 | P(IN(JT)+2,4)=P(IN(JT)+2,3) | |
33146 | P(IN(JT)+2,JT)=0D0 | |
33147 | IN(JT)=IN(JT)+4*JS | |
33148 | GOTO 890 | |
33149 | ENDIF | |
33150 | IN(3)=N+NR+4*NS+5 | |
33151 | DP(5,1)=DP(1,1)/DP(1,4)-DP(2,1)/DP(2,4) | |
33152 | DP(5,2)=DP(1,2)/DP(1,4)-DP(2,2)/DP(2,4) | |
33153 | DP(5,3)=DP(1,3)/DP(1,4)-DP(2,3)/DP(2,4) | |
33154 | IF(DP(5,1)**2.LE.DP(5,2)**2+DP(5,3)**2) DP(3,1)=1D0 | |
33155 | IF(DP(5,1)**2.GT.DP(5,2)**2+DP(5,3)**2) DP(3,3)=1D0 | |
33156 | IF(DP(5,2)**2.LE.DP(5,1)**2+DP(5,3)**2) DP(4,2)=1D0 | |
33157 | IF(DP(5,2)**2.GT.DP(5,1)**2+DP(5,3)**2) DP(4,3)=1D0 | |
33158 | DHCX1=DFOUR(3,1)/DHC12 | |
33159 | DHCX2=DFOUR(3,2)/DHC12 | |
33160 | DHCXX=1D0/SQRT(1D0+2D0*DHCX1*DHCX2*DHC12) | |
33161 | DHCY1=DFOUR(4,1)/DHC12 | |
33162 | DHCY2=DFOUR(4,2)/DHC12 | |
33163 | DHCYX=DHCXX*(DHCX1*DHCY2+DHCX2*DHCY1)*DHC12 | |
33164 | DHCYY=1D0/SQRT(1D0+2D0*DHCY1*DHCY2*DHC12-DHCYX**2) | |
33165 | DO 910 J=1,4 | |
33166 | DP(3,J)=DHCXX*(DP(3,J)-DHCX2*DP(1,J)-DHCX1*DP(2,J)) | |
33167 | P(IN(3),J)=DP(3,J) | |
33168 | P(IN(3)+1,J)=DHCYY*(DP(4,J)-DHCY2*DP(1,J)-DHCY1*DP(2,J)- | |
33169 | & DHCYX*DP(3,J)) | |
33170 | 910 CONTINUE | |
33171 | C...Express pT with respect to new axes, if sensible. | |
33172 | PXP=-(PX(3)*FOUR(IN(3*JT+3),IN(3))+PY(3)* | |
33173 | & FOUR(IN(3*JT+3)+1,IN(3))) | |
33174 | PYP=-(PX(3)*FOUR(IN(3*JT+3),IN(3)+1)+PY(3)* | |
33175 | & FOUR(IN(3*JT+3)+1,IN(3)+1)) | |
33176 | IF(ABS(PXP**2+PYP**2-PX(3)**2-PY(3)**2).LT.0.01D0) THEN | |
33177 | PX(3)=PXP | |
33178 | PY(3)=PYP | |
33179 | ENDIF | |
33180 | ENDIF | |
33181 | ||
33182 | C...Sum up known four-momentum. Gives coefficients for m2 expression. | |
33183 | DO 940 J=1,4 | |
33184 | DHG(J)=0D0 | |
33185 | P(I,J)=PX(JT)*P(IN(3*JT+3),J)+PY(JT)*P(IN(3*JT+3)+1,J)+ | |
33186 | & PX(3)*P(IN(3),J)+PY(3)*P(IN(3)+1,J) | |
33187 | DO 920 IN1=IN(3*JT+1),IN(1)-4*JS,4*JS | |
33188 | P(I,J)=P(I,J)+P(IN1+2,3)*P(IN1,J) | |
33189 | 920 CONTINUE | |
33190 | DO 930 IN2=IN(3*JT+2),IN(2)-4*JS,4*JS | |
33191 | P(I,J)=P(I,J)+P(IN2+2,3)*P(IN2,J) | |
33192 | 930 CONTINUE | |
33193 | 940 CONTINUE | |
33194 | DHM(1)=FOUR(I,I) | |
33195 | DHM(2)=2D0*FOUR(I,IN(1)) | |
33196 | DHM(3)=2D0*FOUR(I,IN(2)) | |
33197 | DHM(4)=2D0*FOUR(IN(1),IN(2)) | |
33198 | ||
33199 | C...Find coefficients for Gamma expression. | |
33200 | DO 960 IN2=IN(1)+1,IN(2),4 | |
33201 | DO 950 IN1=IN(1),IN2-1,4 | |
33202 | DHC=2D0*FOUR(IN1,IN2) | |
33203 | DHG(1)=DHG(1)+P(IN1+2,JT)*P(IN2+2,JT)*DHC | |
33204 | IF(IN1.EQ.IN(1)) DHG(2)=DHG(2)-JS*P(IN2+2,JT)*DHC | |
33205 | IF(IN2.EQ.IN(2)) DHG(3)=DHG(3)+JS*P(IN1+2,JT)*DHC | |
33206 | IF(IN1.EQ.IN(1).AND.IN2.EQ.IN(2)) DHG(4)=DHG(4)-DHC | |
33207 | 950 CONTINUE | |
33208 | 960 CONTINUE | |
33209 | ||
33210 | C...Solve (m2, Gamma) equation system for energies taken. | |
33211 | DHS1=DHM(JR+1)*DHG(4)-DHM(4)*DHG(JR+1) | |
33212 | IF(ABS(DHS1).LT.1D-4) GOTO 640 | |
33213 | DHS2=DHM(4)*(GAM(3)-DHG(1))-DHM(JT+1)*DHG(JR+1)-DHG(4)* | |
33214 | &(P(I,5)**2-DHM(1))+DHG(JT+1)*DHM(JR+1) | |
33215 | DHS3=DHM(JT+1)*(GAM(3)-DHG(1))-DHG(JT+1)*(P(I,5)**2-DHM(1)) | |
33216 | P(IN(JR)+2,4)=0.5D0*(SQRT(MAX(0D0,DHS2**2-4D0*DHS1*DHS3))/ | |
33217 | &ABS(DHS1)-DHS2/DHS1) | |
33218 | IF(DHM(JT+1)+DHM(4)*P(IN(JR)+2,4).LE.0D0) GOTO 640 | |
33219 | P(IN(JT)+2,4)=(P(I,5)**2-DHM(1)-DHM(JR+1)*P(IN(JR)+2,4))/ | |
33220 | &(DHM(JT+1)+DHM(4)*P(IN(JR)+2,4)) | |
33221 | ||
33222 | C...Step to new region if necessary. | |
33223 | IF(P(IN(JR)+2,4).GT.P(IN(JR)+2,3)) THEN | |
33224 | P(IN(JR)+2,4)=P(IN(JR)+2,3) | |
33225 | P(IN(JR)+2,JT)=1D0 | |
33226 | IN(JR)=IN(JR)+4*JS | |
33227 | IF(JS*IN(JR).GT.JS*IN(4*JR)) GOTO 640 | |
33228 | IF(FOUR(IN(1),IN(2)).LE.1D-2) THEN | |
33229 | P(IN(JT)+2,4)=P(IN(JT)+2,3) | |
33230 | P(IN(JT)+2,JT)=0D0 | |
33231 | IN(JT)=IN(JT)+4*JS | |
33232 | ENDIF | |
33233 | GOTO 890 | |
33234 | ELSEIF(P(IN(JT)+2,4).GT.P(IN(JT)+2,3)) THEN | |
33235 | P(IN(JT)+2,4)=P(IN(JT)+2,3) | |
33236 | P(IN(JT)+2,JT)=0D0 | |
33237 | IN(JT)=IN(JT)+4*JS | |
33238 | GOTO 890 | |
33239 | ENDIF | |
33240 | ||
33241 | C...Four-momentum of particle. Remaining quantities. Loop back. | |
33242 | 970 DO 980 J=1,4 | |
33243 | P(I,J)=P(I,J)+P(IN(1)+2,4)*P(IN(1),J)+P(IN(2)+2,4)*P(IN(2),J) | |
33244 | P(N+NRS,J)=P(N+NRS,J)-P(I,J) | |
33245 | 980 CONTINUE | |
33246 | IF(P(I,4).LT.P(I,5)) GOTO 640 | |
33247 | KFL(JT)=-KFL(3) | |
33248 | PMQ(JT)=PMQ(3) | |
33249 | PX(JT)=-PX(3) | |
33250 | PY(JT)=-PY(3) | |
33251 | GAM(JT)=GAM(3) | |
33252 | IF(IN(3).NE.IN(3*JT+3)) THEN | |
33253 | DO 990 J=1,4 | |
33254 | P(IN(3*JT+3),J)=P(IN(3),J) | |
33255 | P(IN(3*JT+3)+1,J)=P(IN(3)+1,J) | |
33256 | 990 CONTINUE | |
33257 | ENDIF | |
33258 | DO 1000 JQ=1,2 | |
33259 | IN(3*JT+JQ)=IN(JQ) | |
33260 | P(IN(JQ)+2,3)=P(IN(JQ)+2,3)-P(IN(JQ)+2,4) | |
33261 | P(IN(JQ)+2,JT)=P(IN(JQ)+2,JT)-JS*(3-2*JQ)*P(IN(JQ)+2,4) | |
33262 | 1000 CONTINUE | |
33263 | GOTO 800 | |
33264 | ||
33265 | C...Final hadron: side, flavour, hadron, mass. | |
33266 | 1010 I=I+1 | |
33267 | K(I,1)=1 | |
33268 | K(I,3)=IE(JR) | |
33269 | K(I,4)=0 | |
33270 | K(I,5)=0 | |
33271 | CALL PYKFDI(KFL(JR),-KFL(3),KFLDMP,K(I,2)) | |
33272 | IF(K(I,2).EQ.0) GOTO 640 | |
33273 | P(I,5)=PYMASS(K(I,2)) | |
33274 | PR(JR)=P(I,5)**2+(PX(JR)-PX(3))**2+(PY(JR)-PY(3))**2 | |
33275 | ||
33276 | C...Final two hadrons: find common setup of four-vectors. | |
33277 | JQ=1 | |
33278 | IF(P(IN(4)+2,3)*P(IN(5)+2,3)*FOUR(IN(4),IN(5)).LT.P(IN(7),3)* | |
33279 | &P(IN(8),3)*FOUR(IN(7),IN(8))) JQ=2 | |
33280 | DHC12=FOUR(IN(3*JQ+1),IN(3*JQ+2)) | |
33281 | DHR1=FOUR(N+NRS,IN(3*JQ+2))/DHC12 | |
33282 | DHR2=FOUR(N+NRS,IN(3*JQ+1))/DHC12 | |
33283 | IF(IN(4).NE.IN(7).OR.IN(5).NE.IN(8)) THEN | |
33284 | PX(3-JQ)=-FOUR(N+NRS,IN(3*JQ+3))-PX(JQ) | |
33285 | PY(3-JQ)=-FOUR(N+NRS,IN(3*JQ+3)+1)-PY(JQ) | |
33286 | PR(3-JQ)=P(I+(JT+JQ-3)**2-1,5)**2+(PX(3-JQ)+(2*JQ-3)*JS* | |
33287 | & PX(3))**2+(PY(3-JQ)+(2*JQ-3)*JS*PY(3))**2 | |
33288 | ENDIF | |
33289 | ||
33290 | C...Solve kinematics for final two hadrons, if possible. | |
33291 | WREM2=WREM2+(PX(1)+PX(2))**2+(PY(1)+PY(2))**2 | |
33292 | FD=(SQRT(PR(1))+SQRT(PR(2)))/SQRT(WREM2) | |
33293 | IF(MJU(1)+MJU(2).NE.0.AND.I.EQ.ISAV+2.AND.FD.GE.1D0) GOTO 200 | |
33294 | IF(FD.GE.1D0) GOTO 640 | |
33295 | FA=WREM2+PR(JT)-PR(JR) | |
33296 | IF(MSTJ(11).NE.2) PREV=0.5D0*EXP(MAX(-50D0,LOG(FD)*PARJ(38)* | |
33297 | &(PR(1)+PR(2))**2)) | |
33298 | IF(MSTJ(11).EQ.2) PREV=0.5D0*FD**PARJ(39) | |
33299 | FB=SIGN(SQRT(MAX(0D0,FA**2-4D0*WREM2*PR(JT))),JS*(PYR(0)-PREV)) | |
33300 | KFL1A=IABS(KFL(1)) | |
33301 | KFL2A=IABS(KFL(2)) | |
33302 | IF(MAX(MOD(KFL1A,10),MOD(KFL1A/1000,10),MOD(KFL2A,10), | |
33303 | &MOD(KFL2A/1000,10)).GE.6) FB=SIGN(SQRT(MAX(0D0,FA**2- | |
33304 | &4D0*WREM2*PR(JT))),DBLE(JS)) | |
33305 | DO 1020 J=1,4 | |
33306 | P(I-1,J)=(PX(JT)+PX(3))*P(IN(3*JQ+3),J)+(PY(JT)+PY(3))* | |
33307 | & P(IN(3*JQ+3)+1,J)+0.5D0*(DHR1*(FA+FB)*P(IN(3*JQ+1),J)+ | |
33308 | & DHR2*(FA-FB)*P(IN(3*JQ+2),J))/WREM2 | |
33309 | P(I,J)=P(N+NRS,J)-P(I-1,J) | |
33310 | 1020 CONTINUE | |
33311 | IF(P(I-1,4).LT.P(I-1,5).OR.P(I,4).LT.P(I,5)) GOTO 640 | |
33312 | ||
33313 | C...Mark jets as fragmented and give daughter pointers. | |
33314 | N=I-NRS+1 | |
33315 | DO 1030 I=NSAV+1,NSAV+NP | |
33316 | IM=K(I,3) | |
33317 | K(IM,1)=K(IM,1)+10 | |
33318 | IF(MSTU(16).NE.2) THEN | |
33319 | K(IM,4)=NSAV+1 | |
33320 | K(IM,5)=NSAV+1 | |
33321 | ELSE | |
33322 | K(IM,4)=NSAV+2 | |
33323 | K(IM,5)=N | |
33324 | ENDIF | |
33325 | 1030 CONTINUE | |
33326 | ||
33327 | C...Document string system. Move up particles. | |
33328 | NSAV=NSAV+1 | |
33329 | K(NSAV,1)=11 | |
33330 | K(NSAV,2)=92 | |
33331 | K(NSAV,3)=IP | |
33332 | K(NSAV,4)=NSAV+1 | |
33333 | K(NSAV,5)=N | |
33334 | DO 1040 J=1,4 | |
33335 | P(NSAV,J)=DPS(J) | |
33336 | V(NSAV,J)=V(IP,J) | |
33337 | 1040 CONTINUE | |
33338 | P(NSAV,5)=SQRT(MAX(0D0,DPS(4)**2-DPS(1)**2-DPS(2)**2-DPS(3)**2)) | |
33339 | V(NSAV,5)=0D0 | |
33340 | DO 1060 I=NSAV+1,N | |
33341 | DO 1050 J=1,5 | |
33342 | K(I,J)=K(I+NRS-1,J) | |
33343 | P(I,J)=P(I+NRS-1,J) | |
33344 | V(I,J)=0D0 | |
33345 | 1050 CONTINUE | |
33346 | 1060 CONTINUE | |
33347 | MSTU91=MSTU(90) | |
33348 | DO 1070 IZ=MSTU90+1,MSTU91 | |
33349 | MSTU9T(IZ)=MSTU(90+IZ)-NRS+1-NSAV+N | |
33350 | PARU9T(IZ)=PARU(90+IZ) | |
33351 | 1070 CONTINUE | |
33352 | MSTU(90)=MSTU90 | |
33353 | ||
33354 | C...Order particles in rank along the chain. Update mother pointer. | |
33355 | DO 1090 I=NSAV+1,N | |
33356 | DO 1080 J=1,5 | |
33357 | K(I-NSAV+N,J)=K(I,J) | |
33358 | P(I-NSAV+N,J)=P(I,J) | |
33359 | 1080 CONTINUE | |
33360 | 1090 CONTINUE | |
33361 | I1=NSAV | |
33362 | DO 1120 I=N+1,2*N-NSAV | |
33363 | IF(K(I,3).NE.IE(1)) GOTO 1120 | |
33364 | I1=I1+1 | |
33365 | DO 1100 J=1,5 | |
33366 | K(I1,J)=K(I,J) | |
33367 | P(I1,J)=P(I,J) | |
33368 | 1100 CONTINUE | |
33369 | IF(MSTU(16).NE.2) K(I1,3)=NSAV | |
33370 | DO 1110 IZ=MSTU90+1,MSTU91 | |
33371 | IF(MSTU9T(IZ).EQ.I) THEN | |
33372 | MSTU(90)=MSTU(90)+1 | |
33373 | MSTU(90+MSTU(90))=I1 | |
33374 | PARU(90+MSTU(90))=PARU9T(IZ) | |
33375 | ENDIF | |
33376 | 1110 CONTINUE | |
33377 | 1120 CONTINUE | |
33378 | DO 1150 I=2*N-NSAV,N+1,-1 | |
33379 | IF(K(I,3).EQ.IE(1)) GOTO 1150 | |
33380 | I1=I1+1 | |
33381 | DO 1130 J=1,5 | |
33382 | K(I1,J)=K(I,J) | |
33383 | P(I1,J)=P(I,J) | |
33384 | 1130 CONTINUE | |
33385 | IF(MSTU(16).NE.2) K(I1,3)=NSAV | |
33386 | DO 1140 IZ=MSTU90+1,MSTU91 | |
33387 | IF(MSTU9T(IZ).EQ.I) THEN | |
33388 | MSTU(90)=MSTU(90)+1 | |
33389 | MSTU(90+MSTU(90))=I1 | |
33390 | PARU(90+MSTU(90))=PARU9T(IZ) | |
33391 | ENDIF | |
33392 | 1140 CONTINUE | |
33393 | 1150 CONTINUE | |
33394 | ||
33395 | C...Boost back particle system. Set production vertices. | |
33396 | IF(MBST.EQ.0) THEN | |
33397 | MSTU(33)=1 | |
33398 | CALL PYROBO(NSAV+1,N,0D0,0D0,DPS(1)/DPS(4),DPS(2)/DPS(4), | |
33399 | & DPS(3)/DPS(4)) | |
33400 | ELSE | |
33401 | DO 1160 I=NSAV+1,N | |
33402 | HHPMT=P(I,1)**2+P(I,2)**2+P(I,5)**2 | |
33403 | IF(P(I,3).GT.0D0) THEN | |
33404 | HHPEZ=(P(I,4)+P(I,3))*HHBZ | |
33405 | P(I,3)=0.5D0*(HHPEZ-HHPMT/HHPEZ) | |
33406 | P(I,4)=0.5D0*(HHPEZ+HHPMT/HHPEZ) | |
33407 | ELSE | |
33408 | HHPEZ=(P(I,4)-P(I,3))/HHBZ | |
33409 | P(I,3)=-0.5D0*(HHPEZ-HHPMT/HHPEZ) | |
33410 | P(I,4)=0.5D0*(HHPEZ+HHPMT/HHPEZ) | |
33411 | ENDIF | |
33412 | 1160 CONTINUE | |
33413 | ENDIF | |
33414 | DO 1180 I=NSAV+1,N | |
33415 | DO 1170 J=1,4 | |
33416 | V(I,J)=V(IP,J) | |
33417 | 1170 CONTINUE | |
33418 | 1180 CONTINUE | |
33419 | ||
33420 | RETURN | |
33421 | END | |
33422 | ||
33423 | C********************************************************************* | |
33424 | ||
33425 | C...PYINDF | |
33426 | C...Handles the fragmentation of a jet system (or a single | |
33427 | C...jet) according to independent fragmentation models. | |
33428 | ||
33429 | SUBROUTINE PYINDF(IP) | |
33430 | ||
33431 | C...Double precision and integer declarations. | |
33432 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
33433 | INTEGER PYK,PYCHGE,PYCOMP | |
33434 | C...Commonblocks. | |
33435 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
33436 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
33437 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
33438 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
33439 | C...Local arrays. | |
33440 | DIMENSION DPS(5),PSI(4),NFI(3),NFL(3),IFET(3),KFLF(3), | |
33441 | &KFLO(2),PXO(2),PYO(2),WO(2) | |
33442 | ||
33443 | C.. MOPS error message | |
33444 | IF(MSTJ(12).GT.3) CALL PYERRM(9,'(PYINDF:) MSTJ(12)>3 options'// | |
33445 | &' are not treated as expected in independent fragmentation') | |
33446 | ||
33447 | C...Reset counters. Identify parton system and take copy. Check flavour. | |
33448 | NSAV=N | |
33449 | MSTU90=MSTU(90) | |
33450 | NJET=0 | |
33451 | KQSUM=0 | |
33452 | DO 100 J=1,5 | |
33453 | DPS(J)=0D0 | |
33454 | 100 CONTINUE | |
33455 | I=IP-1 | |
33456 | 110 I=I+1 | |
33457 | IF(I.GT.MIN(N,MSTU(4)-MSTU(32))) THEN | |
33458 | CALL PYERRM(12,'(PYINDF:) failed to reconstruct jet system') | |
33459 | IF(MSTU(21).GE.1) RETURN | |
33460 | ENDIF | |
33461 | IF(K(I,1).NE.1.AND.K(I,1).NE.2) GOTO 110 | |
33462 | KC=PYCOMP(K(I,2)) | |
33463 | IF(KC.EQ.0) GOTO 110 | |
33464 | KQ=KCHG(KC,2)*ISIGN(1,K(I,2)) | |
33465 | IF(KQ.EQ.0) GOTO 110 | |
33466 | NJET=NJET+1 | |
33467 | IF(KQ.NE.2) KQSUM=KQSUM+KQ | |
33468 | DO 120 J=1,5 | |
33469 | K(NSAV+NJET,J)=K(I,J) | |
33470 | P(NSAV+NJET,J)=P(I,J) | |
33471 | DPS(J)=DPS(J)+P(I,J) | |
33472 | 120 CONTINUE | |
33473 | K(NSAV+NJET,3)=I | |
33474 | IF(K(I,1).EQ.2.OR.(MSTJ(3).LE.5.AND.N.GT.I.AND. | |
33475 | &K(I+1,1).EQ.2)) GOTO 110 | |
33476 | IF(NJET.NE.1.AND.KQSUM.NE.0) THEN | |
33477 | CALL PYERRM(12,'(PYINDF:) unphysical flavour combination') | |
33478 | IF(MSTU(21).GE.1) RETURN | |
33479 | ENDIF | |
33480 | ||
33481 | C...Boost copied system to CM frame. Find CM energy and sum flavours. | |
33482 | IF(NJET.NE.1) THEN | |
33483 | MSTU(33)=1 | |
33484 | CALL PYROBO(NSAV+1,NSAV+NJET,0D0,0D0,-DPS(1)/DPS(4), | |
33485 | & -DPS(2)/DPS(4),-DPS(3)/DPS(4)) | |
33486 | ENDIF | |
33487 | PECM=0D0 | |
33488 | DO 130 J=1,3 | |
33489 | NFI(J)=0 | |
33490 | 130 CONTINUE | |
33491 | DO 140 I=NSAV+1,NSAV+NJET | |
33492 | PECM=PECM+P(I,4) | |
33493 | KFA=IABS(K(I,2)) | |
33494 | IF(KFA.LE.3) THEN | |
33495 | NFI(KFA)=NFI(KFA)+ISIGN(1,K(I,2)) | |
33496 | ELSEIF(KFA.GT.1000) THEN | |
33497 | KFLA=MOD(KFA/1000,10) | |
33498 | KFLB=MOD(KFA/100,10) | |
33499 | IF(KFLA.LE.3) NFI(KFLA)=NFI(KFLA)+ISIGN(1,K(I,2)) | |
33500 | IF(KFLB.LE.3) NFI(KFLB)=NFI(KFLB)+ISIGN(1,K(I,2)) | |
33501 | ENDIF | |
33502 | 140 CONTINUE | |
33503 | ||
33504 | C...Loop over attempts made. Reset counters. | |
33505 | NTRY=0 | |
33506 | 150 NTRY=NTRY+1 | |
33507 | IF(NTRY.GT.200) THEN | |
33508 | CALL PYERRM(14,'(PYINDF:) caught in infinite loop') | |
33509 | IF(MSTU(21).GE.1) RETURN | |
33510 | ENDIF | |
33511 | N=NSAV+NJET | |
33512 | MSTU(90)=MSTU90 | |
33513 | DO 160 J=1,3 | |
33514 | NFL(J)=NFI(J) | |
33515 | IFET(J)=0 | |
33516 | KFLF(J)=0 | |
33517 | 160 CONTINUE | |
33518 | ||
33519 | C...Loop over jets to be fragmented. | |
33520 | DO 230 IP1=NSAV+1,NSAV+NJET | |
33521 | MSTJ(91)=0 | |
33522 | NSAV1=N | |
33523 | MSTU91=MSTU(90) | |
33524 | ||
33525 | C...Initial flavour and momentum values. Jet along +z axis. | |
33526 | KFLH=IABS(K(IP1,2)) | |
33527 | IF(KFLH.GT.10) KFLH=MOD(KFLH/1000,10) | |
33528 | KFLO(2)=0 | |
33529 | WF=P(IP1,4)+SQRT(P(IP1,1)**2+P(IP1,2)**2+P(IP1,3)**2) | |
33530 | ||
33531 | C...Initial values for quark or diquark jet. | |
33532 | 170 IF(IABS(K(IP1,2)).NE.21) THEN | |
33533 | NSTR=1 | |
33534 | KFLO(1)=K(IP1,2) | |
33535 | CALL PYPTDI(0,PXO(1),PYO(1)) | |
33536 | WO(1)=WF | |
33537 | ||
33538 | C...Initial values for gluon treated like random quark jet. | |
33539 | ELSEIF(MSTJ(2).LE.2) THEN | |
33540 | NSTR=1 | |
33541 | IF(MSTJ(2).EQ.2) MSTJ(91)=1 | |
33542 | KFLO(1)=INT(1D0+(2D0+PARJ(2))*PYR(0))*(-1)**INT(PYR(0)+0.5D0) | |
33543 | CALL PYPTDI(0,PXO(1),PYO(1)) | |
33544 | WO(1)=WF | |
33545 | ||
33546 | C...Initial values for gluon treated like quark-antiquark jet pair, | |
33547 | C...sharing energy according to Altarelli-Parisi splitting function. | |
33548 | ELSE | |
33549 | NSTR=2 | |
33550 | IF(MSTJ(2).EQ.4) MSTJ(91)=1 | |
33551 | KFLO(1)=INT(1D0+(2D0+PARJ(2))*PYR(0))*(-1)**INT(PYR(0)+0.5D0) | |
33552 | KFLO(2)=-KFLO(1) | |
33553 | CALL PYPTDI(0,PXO(1),PYO(1)) | |
33554 | PXO(2)=-PXO(1) | |
33555 | PYO(2)=-PYO(1) | |
33556 | WO(1)=WF*PYR(0)**(1D0/3D0) | |
33557 | WO(2)=WF-WO(1) | |
33558 | ENDIF | |
33559 | ||
33560 | C...Initial values for rank, flavour, pT and W+. | |
33561 | DO 220 ISTR=1,NSTR | |
33562 | 180 I=N | |
33563 | MSTU(90)=MSTU91 | |
33564 | IRANK=0 | |
33565 | KFL1=KFLO(ISTR) | |
33566 | PX1=PXO(ISTR) | |
33567 | PY1=PYO(ISTR) | |
33568 | W=WO(ISTR) | |
33569 | ||
33570 | C...New hadron. Generate flavour and hadron species. | |
33571 | 190 I=I+1 | |
33572 | IF(I.GE.MSTU(4)-MSTU(32)-NJET-5) THEN | |
33573 | CALL PYERRM(11,'(PYINDF:) no more memory left in PYJETS') | |
33574 | IF(MSTU(21).GE.1) RETURN | |
33575 | ENDIF | |
33576 | IRANK=IRANK+1 | |
33577 | K(I,1)=1 | |
33578 | K(I,3)=IP1 | |
33579 | K(I,4)=0 | |
33580 | K(I,5)=0 | |
33581 | 200 CALL PYKFDI(KFL1,0,KFL2,K(I,2)) | |
33582 | IF(K(I,2).EQ.0) GOTO 180 | |
33583 | IF(IRANK.EQ.1.AND.IABS(KFL1).LE.10.AND.IABS(KFL2).GT.10) THEN | |
33584 | IF(PYR(0).GT.PARJ(19)) GOTO 200 | |
33585 | ENDIF | |
33586 | ||
33587 | C...Find hadron mass. Generate four-momentum. | |
33588 | P(I,5)=PYMASS(K(I,2)) | |
33589 | CALL PYPTDI(KFL1,PX2,PY2) | |
33590 | P(I,1)=PX1+PX2 | |
33591 | P(I,2)=PY1+PY2 | |
33592 | PR=P(I,5)**2+P(I,1)**2+P(I,2)**2 | |
33593 | CALL PYZDIS(KFL1,KFL2,PR,Z) | |
33594 | MZSAV=0 | |
33595 | IF(IABS(KFL1).GE.4.AND.IABS(KFL1).LE.8.AND.MSTU(90).LT.8) THEN | |
33596 | MZSAV=1 | |
33597 | MSTU(90)=MSTU(90)+1 | |
33598 | MSTU(90+MSTU(90))=I | |
33599 | PARU(90+MSTU(90))=Z | |
33600 | ENDIF | |
33601 | P(I,3)=0.5D0*(Z*W-PR/MAX(1D-4,Z*W)) | |
33602 | P(I,4)=0.5D0*(Z*W+PR/MAX(1D-4,Z*W)) | |
33603 | IF(MSTJ(3).GE.1.AND.IRANK.EQ.1.AND.KFLH.GE.4.AND. | |
33604 | & P(I,3).LE.0.001D0) THEN | |
33605 | IF(W.GE.P(I,5)+0.5D0*PARJ(32)) GOTO 180 | |
33606 | P(I,3)=0.0001D0 | |
33607 | P(I,4)=SQRT(PR) | |
33608 | Z=P(I,4)/W | |
33609 | ENDIF | |
33610 | ||
33611 | C...Remaining flavour and momentum. | |
33612 | KFL1=-KFL2 | |
33613 | PX1=-PX2 | |
33614 | PY1=-PY2 | |
33615 | W=(1D0-Z)*W | |
33616 | DO 210 J=1,5 | |
33617 | V(I,J)=0D0 | |
33618 | 210 CONTINUE | |
33619 | ||
33620 | C...Check if pL acceptable. Go back for new hadron if enough energy. | |
33621 | IF(MSTJ(3).GE.0.AND.P(I,3).LT.0D0) THEN | |
33622 | I=I-1 | |
33623 | IF(MZSAV.EQ.1) MSTU(90)=MSTU(90)-1 | |
33624 | ENDIF | |
33625 | IF(W.GT.PARJ(31)) GOTO 190 | |
33626 | N=I | |
33627 | 220 CONTINUE | |
33628 | IF(MOD(MSTJ(3),5).EQ.4.AND.N.EQ.NSAV1) WF=WF+0.1D0*PARJ(32) | |
33629 | IF(MOD(MSTJ(3),5).EQ.4.AND.N.EQ.NSAV1) GOTO 170 | |
33630 | ||
33631 | C...Rotate jet to new direction. | |
33632 | THE=PYANGL(P(IP1,3),SQRT(P(IP1,1)**2+P(IP1,2)**2)) | |
33633 | PHI=PYANGL(P(IP1,1),P(IP1,2)) | |
33634 | MSTU(33)=1 | |
33635 | CALL PYROBO(NSAV1+1,N,THE,PHI,0D0,0D0,0D0) | |
33636 | K(K(IP1,3),4)=NSAV1+1 | |
33637 | K(K(IP1,3),5)=N | |
33638 | ||
33639 | C...End of jet generation loop. Skip conservation in some cases. | |
33640 | 230 CONTINUE | |
33641 | IF(NJET.EQ.1.OR.MSTJ(3).LE.0) GOTO 490 | |
33642 | IF(MOD(MSTJ(3),5).NE.0.AND.N-NSAV-NJET.LT.2) GOTO 150 | |
33643 | ||
33644 | C...Subtract off produced hadron flavours, finished if zero. | |
33645 | DO 240 I=NSAV+NJET+1,N | |
33646 | KFA=IABS(K(I,2)) | |
33647 | KFLA=MOD(KFA/1000,10) | |
33648 | KFLB=MOD(KFA/100,10) | |
33649 | KFLC=MOD(KFA/10,10) | |
33650 | IF(KFLA.EQ.0) THEN | |
33651 | IF(KFLB.LE.3) NFL(KFLB)=NFL(KFLB)-ISIGN(1,K(I,2))*(-1)**KFLB | |
33652 | IF(KFLC.LE.3) NFL(KFLC)=NFL(KFLC)+ISIGN(1,K(I,2))*(-1)**KFLB | |
33653 | ELSE | |
33654 | IF(KFLA.LE.3) NFL(KFLA)=NFL(KFLA)-ISIGN(1,K(I,2)) | |
33655 | IF(KFLB.LE.3) NFL(KFLB)=NFL(KFLB)-ISIGN(1,K(I,2)) | |
33656 | IF(KFLC.LE.3) NFL(KFLC)=NFL(KFLC)-ISIGN(1,K(I,2)) | |
33657 | ENDIF | |
33658 | 240 CONTINUE | |
33659 | NREQ=(IABS(NFL(1))+IABS(NFL(2))+IABS(NFL(3))-IABS(NFL(1)+ | |
33660 | &NFL(2)+NFL(3)))/2+IABS(NFL(1)+NFL(2)+NFL(3))/3 | |
33661 | IF(NREQ.EQ.0) GOTO 320 | |
33662 | ||
33663 | C...Take away flavour of low-momentum particles until enough freedom. | |
33664 | NREM=0 | |
33665 | 250 IREM=0 | |
33666 | P2MIN=PECM**2 | |
33667 | DO 260 I=NSAV+NJET+1,N | |
33668 | P2=P(I,1)**2+P(I,2)**2+P(I,3)**2 | |
33669 | IF(K(I,1).EQ.1.AND.P2.LT.P2MIN) IREM=I | |
33670 | IF(K(I,1).EQ.1.AND.P2.LT.P2MIN) P2MIN=P2 | |
33671 | 260 CONTINUE | |
33672 | IF(IREM.EQ.0) GOTO 150 | |
33673 | K(IREM,1)=7 | |
33674 | KFA=IABS(K(IREM,2)) | |
33675 | KFLA=MOD(KFA/1000,10) | |
33676 | KFLB=MOD(KFA/100,10) | |
33677 | KFLC=MOD(KFA/10,10) | |
33678 | IF(KFLA.GE.4.OR.KFLB.GE.4) K(IREM,1)=8 | |
33679 | IF(K(IREM,1).EQ.8) GOTO 250 | |
33680 | IF(KFLA.EQ.0) THEN | |
33681 | ISGN=ISIGN(1,K(IREM,2))*(-1)**KFLB | |
33682 | IF(KFLB.LE.3) NFL(KFLB)=NFL(KFLB)+ISGN | |
33683 | IF(KFLC.LE.3) NFL(KFLC)=NFL(KFLC)-ISGN | |
33684 | ELSE | |
33685 | IF(KFLA.LE.3) NFL(KFLA)=NFL(KFLA)+ISIGN(1,K(IREM,2)) | |
33686 | IF(KFLB.LE.3) NFL(KFLB)=NFL(KFLB)+ISIGN(1,K(IREM,2)) | |
33687 | IF(KFLC.LE.3) NFL(KFLC)=NFL(KFLC)+ISIGN(1,K(IREM,2)) | |
33688 | ENDIF | |
33689 | NREM=NREM+1 | |
33690 | NREQ=(IABS(NFL(1))+IABS(NFL(2))+IABS(NFL(3))-IABS(NFL(1)+ | |
33691 | &NFL(2)+NFL(3)))/2+IABS(NFL(1)+NFL(2)+NFL(3))/3 | |
33692 | IF(NREQ.GT.NREM) GOTO 250 | |
33693 | DO 270 I=NSAV+NJET+1,N | |
33694 | IF(K(I,1).EQ.8) K(I,1)=1 | |
33695 | 270 CONTINUE | |
33696 | ||
33697 | C...Find combination of existing and new flavours for hadron. | |
33698 | 280 NFET=2 | |
33699 | IF(NFL(1)+NFL(2)+NFL(3).NE.0) NFET=3 | |
33700 | IF(NREQ.LT.NREM) NFET=1 | |
33701 | IF(IABS(NFL(1))+IABS(NFL(2))+IABS(NFL(3)).EQ.0) NFET=0 | |
33702 | DO 290 J=1,NFET | |
33703 | IFET(J)=1+(IABS(NFL(1))+IABS(NFL(2))+IABS(NFL(3)))*PYR(0) | |
33704 | KFLF(J)=ISIGN(1,NFL(1)) | |
33705 | IF(IFET(J).GT.IABS(NFL(1))) KFLF(J)=ISIGN(2,NFL(2)) | |
33706 | IF(IFET(J).GT.IABS(NFL(1))+IABS(NFL(2))) KFLF(J)=ISIGN(3,NFL(3)) | |
33707 | 290 CONTINUE | |
33708 | IF(NFET.EQ.2.AND.(IFET(1).EQ.IFET(2).OR.KFLF(1)*KFLF(2).GT.0)) | |
33709 | &GOTO 280 | |
33710 | IF(NFET.EQ.3.AND.(IFET(1).EQ.IFET(2).OR.IFET(1).EQ.IFET(3).OR. | |
33711 | &IFET(2).EQ.IFET(3).OR.KFLF(1)*KFLF(2).LT.0.OR.KFLF(1)*KFLF(3) | |
33712 | &.LT.0.OR.KFLF(1)*(NFL(1)+NFL(2)+NFL(3)).LT.0)) GOTO 280 | |
33713 | IF(NFET.EQ.0) KFLF(1)=1+INT((2D0+PARJ(2))*PYR(0)) | |
33714 | IF(NFET.EQ.0) KFLF(2)=-KFLF(1) | |
33715 | IF(NFET.EQ.1) KFLF(2)=ISIGN(1+INT((2D0+PARJ(2))*PYR(0)),-KFLF(1)) | |
33716 | IF(NFET.LE.2) KFLF(3)=0 | |
33717 | IF(KFLF(3).NE.0) THEN | |
33718 | KFLFC=ISIGN(1000*MAX(IABS(KFLF(1)),IABS(KFLF(3)))+ | |
33719 | & 100*MIN(IABS(KFLF(1)),IABS(KFLF(3)))+1,KFLF(1)) | |
33720 | IF(KFLF(1).EQ.KFLF(3).OR.(1D0+3D0*PARJ(4))*PYR(0).GT.1D0) | |
33721 | & KFLFC=KFLFC+ISIGN(2,KFLFC) | |
33722 | ELSE | |
33723 | KFLFC=KFLF(1) | |
33724 | ENDIF | |
33725 | CALL PYKFDI(KFLFC,KFLF(2),KFLDMP,KF) | |
33726 | IF(KF.EQ.0) GOTO 280 | |
33727 | DO 300 J=1,MAX(2,NFET) | |
33728 | NFL(IABS(KFLF(J)))=NFL(IABS(KFLF(J)))-ISIGN(1,KFLF(J)) | |
33729 | 300 CONTINUE | |
33730 | ||
33731 | C...Store hadron at random among free positions. | |
33732 | NPOS=MIN(1+INT(PYR(0)*NREM),NREM) | |
33733 | DO 310 I=NSAV+NJET+1,N | |
33734 | IF(K(I,1).EQ.7) NPOS=NPOS-1 | |
33735 | IF(K(I,1).EQ.1.OR.NPOS.NE.0) GOTO 310 | |
33736 | K(I,1)=1 | |
33737 | K(I,2)=KF | |
33738 | P(I,5)=PYMASS(K(I,2)) | |
33739 | P(I,4)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
33740 | 310 CONTINUE | |
33741 | NREM=NREM-1 | |
33742 | NREQ=(IABS(NFL(1))+IABS(NFL(2))+IABS(NFL(3))-IABS(NFL(1)+ | |
33743 | &NFL(2)+NFL(3)))/2+IABS(NFL(1)+NFL(2)+NFL(3))/3 | |
33744 | IF(NREM.GT.0) GOTO 280 | |
33745 | ||
33746 | C...Compensate for missing momentum in global scheme (3 options). | |
33747 | 320 IF(MOD(MSTJ(3),5).NE.0.AND.MOD(MSTJ(3),5).NE.4) THEN | |
33748 | DO 340 J=1,3 | |
33749 | PSI(J)=0D0 | |
33750 | DO 330 I=NSAV+NJET+1,N | |
33751 | PSI(J)=PSI(J)+P(I,J) | |
33752 | 330 CONTINUE | |
33753 | 340 CONTINUE | |
33754 | PSI(4)=PSI(1)**2+PSI(2)**2+PSI(3)**2 | |
33755 | PWS=0D0 | |
33756 | DO 350 I=NSAV+NJET+1,N | |
33757 | IF(MOD(MSTJ(3),5).EQ.1) PWS=PWS+P(I,4) | |
33758 | IF(MOD(MSTJ(3),5).EQ.2) PWS=PWS+SQRT(P(I,5)**2+(PSI(1)*P(I,1)+ | |
33759 | & PSI(2)*P(I,2)+PSI(3)*P(I,3))**2/PSI(4)) | |
33760 | IF(MOD(MSTJ(3),5).EQ.3) PWS=PWS+1D0 | |
33761 | 350 CONTINUE | |
33762 | DO 370 I=NSAV+NJET+1,N | |
33763 | IF(MOD(MSTJ(3),5).EQ.1) PW=P(I,4) | |
33764 | IF(MOD(MSTJ(3),5).EQ.2) PW=SQRT(P(I,5)**2+(PSI(1)*P(I,1)+ | |
33765 | & PSI(2)*P(I,2)+PSI(3)*P(I,3))**2/PSI(4)) | |
33766 | IF(MOD(MSTJ(3),5).EQ.3) PW=1D0 | |
33767 | DO 360 J=1,3 | |
33768 | P(I,J)=P(I,J)-PSI(J)*PW/PWS | |
33769 | 360 CONTINUE | |
33770 | P(I,4)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
33771 | 370 CONTINUE | |
33772 | ||
33773 | C...Compensate for missing momentum withing each jet separately. | |
33774 | ELSEIF(MOD(MSTJ(3),5).EQ.4) THEN | |
33775 | DO 390 I=N+1,N+NJET | |
33776 | K(I,1)=0 | |
33777 | DO 380 J=1,5 | |
33778 | P(I,J)=0D0 | |
33779 | 380 CONTINUE | |
33780 | 390 CONTINUE | |
33781 | DO 410 I=NSAV+NJET+1,N | |
33782 | IR1=K(I,3) | |
33783 | IR2=N+IR1-NSAV | |
33784 | K(IR2,1)=K(IR2,1)+1 | |
33785 | PLS=(P(I,1)*P(IR1,1)+P(I,2)*P(IR1,2)+P(I,3)*P(IR1,3))/ | |
33786 | & (P(IR1,1)**2+P(IR1,2)**2+P(IR1,3)**2) | |
33787 | DO 400 J=1,3 | |
33788 | P(IR2,J)=P(IR2,J)+P(I,J)-PLS*P(IR1,J) | |
33789 | 400 CONTINUE | |
33790 | P(IR2,4)=P(IR2,4)+P(I,4) | |
33791 | P(IR2,5)=P(IR2,5)+PLS | |
33792 | 410 CONTINUE | |
33793 | PSS=0D0 | |
33794 | DO 420 I=N+1,N+NJET | |
33795 | IF(K(I,1).NE.0) PSS=PSS+P(I,4)/(PECM*(0.8D0*P(I,5)+0.2D0)) | |
33796 | 420 CONTINUE | |
33797 | DO 440 I=NSAV+NJET+1,N | |
33798 | IR1=K(I,3) | |
33799 | IR2=N+IR1-NSAV | |
33800 | PLS=(P(I,1)*P(IR1,1)+P(I,2)*P(IR1,2)+P(I,3)*P(IR1,3))/ | |
33801 | & (P(IR1,1)**2+P(IR1,2)**2+P(IR1,3)**2) | |
33802 | DO 430 J=1,3 | |
33803 | P(I,J)=P(I,J)-P(IR2,J)/K(IR2,1)+(1D0/(P(IR2,5)*PSS)-1D0)* | |
33804 | & PLS*P(IR1,J) | |
33805 | 430 CONTINUE | |
33806 | P(I,4)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
33807 | 440 CONTINUE | |
33808 | ENDIF | |
33809 | ||
33810 | C...Scale momenta for energy conservation. | |
33811 | IF(MOD(MSTJ(3),5).NE.0) THEN | |
33812 | PMS=0D0 | |
33813 | PES=0D0 | |
33814 | PQS=0D0 | |
33815 | DO 450 I=NSAV+NJET+1,N | |
33816 | PMS=PMS+P(I,5) | |
33817 | PES=PES+P(I,4) | |
33818 | PQS=PQS+P(I,5)**2/P(I,4) | |
33819 | 450 CONTINUE | |
33820 | IF(PMS.GE.PECM) GOTO 150 | |
33821 | NECO=0 | |
33822 | 460 NECO=NECO+1 | |
33823 | PFAC=(PECM-PQS)/(PES-PQS) | |
33824 | PES=0D0 | |
33825 | PQS=0D0 | |
33826 | DO 480 I=NSAV+NJET+1,N | |
33827 | DO 470 J=1,3 | |
33828 | P(I,J)=PFAC*P(I,J) | |
33829 | 470 CONTINUE | |
33830 | P(I,4)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2+P(I,5)**2) | |
33831 | PES=PES+P(I,4) | |
33832 | PQS=PQS+P(I,5)**2/P(I,4) | |
33833 | 480 CONTINUE | |
33834 | IF(NECO.LT.10.AND.ABS(PECM-PES).GT.2D-6*PECM) GOTO 460 | |
33835 | ENDIF | |
33836 | ||
33837 | C...Origin of produced particles and parton daughter pointers. | |
33838 | 490 DO 500 I=NSAV+NJET+1,N | |
33839 | IF(MSTU(16).NE.2) K(I,3)=NSAV+1 | |
33840 | IF(MSTU(16).EQ.2) K(I,3)=K(K(I,3),3) | |
33841 | 500 CONTINUE | |
33842 | DO 510 I=NSAV+1,NSAV+NJET | |
33843 | I1=K(I,3) | |
33844 | K(I1,1)=K(I1,1)+10 | |
33845 | IF(MSTU(16).NE.2) THEN | |
33846 | K(I1,4)=NSAV+1 | |
33847 | K(I1,5)=NSAV+1 | |
33848 | ELSE | |
33849 | K(I1,4)=K(I1,4)-NJET+1 | |
33850 | K(I1,5)=K(I1,5)-NJET+1 | |
33851 | IF(K(I1,5).LT.K(I1,4)) THEN | |
33852 | K(I1,4)=0 | |
33853 | K(I1,5)=0 | |
33854 | ENDIF | |
33855 | ENDIF | |
33856 | 510 CONTINUE | |
33857 | ||
33858 | C...Document independent fragmentation system. Remove copy of jets. | |
33859 | NSAV=NSAV+1 | |
33860 | K(NSAV,1)=11 | |
33861 | K(NSAV,2)=93 | |
33862 | K(NSAV,3)=IP | |
33863 | K(NSAV,4)=NSAV+1 | |
33864 | K(NSAV,5)=N-NJET+1 | |
33865 | DO 520 J=1,4 | |
33866 | P(NSAV,J)=DPS(J) | |
33867 | V(NSAV,J)=V(IP,J) | |
33868 | 520 CONTINUE | |
33869 | P(NSAV,5)=SQRT(MAX(0D0,DPS(4)**2-DPS(1)**2-DPS(2)**2-DPS(3)**2)) | |
33870 | V(NSAV,5)=0D0 | |
33871 | DO 540 I=NSAV+NJET,N | |
33872 | DO 530 J=1,5 | |
33873 | K(I-NJET+1,J)=K(I,J) | |
33874 | P(I-NJET+1,J)=P(I,J) | |
33875 | V(I-NJET+1,J)=V(I,J) | |
33876 | 530 CONTINUE | |
33877 | 540 CONTINUE | |
33878 | N=N-NJET+1 | |
33879 | DO 550 IZ=MSTU90+1,MSTU(90) | |
33880 | MSTU(90+IZ)=MSTU(90+IZ)-NJET+1 | |
33881 | 550 CONTINUE | |
33882 | ||
33883 | C...Boost back particle system. Set production vertices. | |
33884 | IF(NJET.NE.1) CALL PYROBO(NSAV+1,N,0D0,0D0,DPS(1)/DPS(4), | |
33885 | &DPS(2)/DPS(4),DPS(3)/DPS(4)) | |
33886 | DO 570 I=NSAV+1,N | |
33887 | DO 560 J=1,4 | |
33888 | V(I,J)=V(IP,J) | |
33889 | 560 CONTINUE | |
33890 | 570 CONTINUE | |
33891 | ||
33892 | RETURN | |
33893 | END | |
33894 | ||
33895 | C********************************************************************* | |
33896 | ||
33897 | C...PYDECY | |
33898 | C...Handles the decay of unstable particles. | |
33899 | ||
33900 | SUBROUTINE PYDECY(IP) | |
33901 | ||
33902 | C...Double precision and integer declarations. | |
33903 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
33904 | INTEGER PYK,PYCHGE,PYCOMP | |
33905 | C...Commonblocks. | |
33906 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
33907 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
33908 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
33909 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
33910 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/ | |
33911 | C...Local arrays. | |
33912 | DIMENSION VDCY(4),KFLO(4),KFL1(4),PV(10,5),RORD(10),UE(3),BE(3), | |
33913 | &WTCOR(10),PTAU(4),PCMTAU(4),DBETAU(3) | |
33914 | CHARACTER CIDC*4 | |
33915 | DATA WTCOR/2D0,5D0,15D0,60D0,250D0,1500D0,1.2D4,1.2D5,150D0,16D0/ | |
33916 | ||
33917 | C...Functions: momentum in two-particle decays and four-product. | |
33918 | PAWT(A,B,C)=SQRT((A**2-(B+C)**2)*(A**2-(B-C)**2))/(2D0*A) | |
33919 | FOUR(I,J)=P(I,4)*P(J,4)-P(I,1)*P(J,1)-P(I,2)*P(J,2)-P(I,3)*P(J,3) | |
33920 | ||
33921 | C...Initial values. | |
33922 | NTRY=0 | |
33923 | NSAV=N | |
33924 | KFA=IABS(K(IP,2)) | |
33925 | KFS=ISIGN(1,K(IP,2)) | |
33926 | KC=PYCOMP(KFA) | |
33927 | MSTJ(92)=0 | |
33928 | ||
33929 | C...Choose lifetime and determine decay vertex. | |
33930 | IF(K(IP,1).EQ.5) THEN | |
33931 | V(IP,5)=0D0 | |
33932 | ELSEIF(K(IP,1).NE.4) THEN | |
33933 | V(IP,5)=-PMAS(KC,4)*LOG(PYR(0)) | |
33934 | ENDIF | |
33935 | DO 100 J=1,4 | |
33936 | VDCY(J)=V(IP,J)+V(IP,5)*P(IP,J)/P(IP,5) | |
33937 | 100 CONTINUE | |
33938 | ||
33939 | C...Determine whether decay allowed or not. | |
33940 | MOUT=0 | |
33941 | IF(MSTJ(22).EQ.2) THEN | |
33942 | IF(PMAS(KC,4).GT.PARJ(71)) MOUT=1 | |
33943 | ELSEIF(MSTJ(22).EQ.3) THEN | |
33944 | IF(VDCY(1)**2+VDCY(2)**2+VDCY(3)**2.GT.PARJ(72)**2) MOUT=1 | |
33945 | ELSEIF(MSTJ(22).EQ.4) THEN | |
33946 | IF(VDCY(1)**2+VDCY(2)**2.GT.PARJ(73)**2) MOUT=1 | |
33947 | IF(ABS(VDCY(3)).GT.PARJ(74)) MOUT=1 | |
33948 | ENDIF | |
33949 | IF(MOUT.EQ.1.AND.K(IP,1).NE.5) THEN | |
33950 | K(IP,1)=4 | |
33951 | RETURN | |
33952 | ENDIF | |
33953 | ||
33954 | C...Interface to external tau decay library (for tau polarization). | |
33955 | IF(KFA.EQ.15.AND.MSTJ(28).GE.1) THEN | |
33956 | ||
33957 | C...Starting values for pointers and momenta. | |
33958 | ITAU=IP | |
33959 | DO 110 J=1,4 | |
33960 | PTAU(J)=P(ITAU,J) | |
33961 | PCMTAU(J)=P(ITAU,J) | |
33962 | 110 CONTINUE | |
33963 | ||
33964 | C...Iterate to find position and code of mother of tau. | |
33965 | IMTAU=ITAU | |
33966 | 120 IMTAU=K(IMTAU,3) | |
33967 | ||
33968 | IF(IMTAU.EQ.0) THEN | |
33969 | C...If no known origin then impossible to do anything further. | |
33970 | KFORIG=0 | |
33971 | IORIG=0 | |
33972 | ||
33973 | ELSEIF(K(IMTAU,2).EQ.K(ITAU,2)) THEN | |
33974 | C...If tau -> tau + gamma then add gamma energy and loop. | |
33975 | IF(K(K(IMTAU,4),2).EQ.22) THEN | |
33976 | DO 130 J=1,4 | |
33977 | PCMTAU(J)=PCMTAU(J)+P(K(IMTAU,4),J) | |
33978 | 130 CONTINUE | |
33979 | ELSEIF(K(K(IMTAU,5),2).EQ.22) THEN | |
33980 | DO 140 J=1,4 | |
33981 | PCMTAU(J)=PCMTAU(J)+P(K(IMTAU,5),J) | |
33982 | 140 CONTINUE | |
33983 | ENDIF | |
33984 | GOTO 120 | |
33985 | ||
33986 | ELSEIF(IABS(K(IMTAU,2)).GT.100) THEN | |
33987 | C...If coming from weak decay of hadron then W is not stored in record, | |
33988 | C...but can be reconstructed by adding neutrino momentum. | |
33989 | KFORIG=-ISIGN(24,K(ITAU,2)) | |
33990 | IORIG=0 | |
33991 | DO 160 II=K(IMTAU,4),K(IMTAU,5) | |
33992 | IF(K(II,2)*ISIGN(1,K(ITAU,2)).EQ.-16) THEN | |
33993 | DO 150 J=1,4 | |
33994 | PCMTAU(J)=PCMTAU(J)+P(II,J) | |
33995 | 150 CONTINUE | |
33996 | ENDIF | |
33997 | 160 CONTINUE | |
33998 | ||
33999 | ELSE | |
34000 | C...If coming from resonance decay then find latest copy of this | |
34001 | C...resonance (may not completely agree). | |
34002 | KFORIG=K(IMTAU,2) | |
34003 | IORIG=IMTAU | |
34004 | DO 170 II=IMTAU+1,IP-1 | |
34005 | IF(K(II,2).EQ.KFORIG.AND.K(II,3).EQ.IORIG.AND. | |
34006 | & ABS(P(II,5)-P(IORIG,5)).LT.1D-5*P(IORIG,5)) IORIG=II | |
34007 | 170 CONTINUE | |
34008 | DO 180 J=1,4 | |
34009 | PCMTAU(J)=P(IORIG,J) | |
34010 | 180 CONTINUE | |
34011 | ENDIF | |
34012 | ||
34013 | C...Boost tau to rest frame of production process (where known) | |
34014 | C...and rotate it to sit along +z axis. | |
34015 | DO 190 J=1,3 | |
34016 | DBETAU(J)=PCMTAU(J)/PCMTAU(4) | |
34017 | 190 CONTINUE | |
34018 | IF(KFORIG.NE.0) CALL PYROBO(ITAU,ITAU,0D0,0D0,-DBETAU(1), | |
34019 | & -DBETAU(2),-DBETAU(3)) | |
34020 | PHITAU=PYANGL(P(ITAU,1),P(ITAU,2)) | |
34021 | CALL PYROBO(ITAU,ITAU,0D0,-PHITAU,0D0,0D0,0D0) | |
34022 | THETAU=PYANGL(P(ITAU,3),P(ITAU,1)) | |
34023 | CALL PYROBO(ITAU,ITAU,-THETAU,0D0,0D0,0D0,0D0) | |
34024 | ||
34025 | C...Call tau decay routine (if meaningful) and fill extra info. | |
34026 | IF(KFORIG.NE.0.OR.MSTJ(28).EQ.2) THEN | |
34027 | CALL PYTAUD(ITAU,IORIG,KFORIG,NDECAY) | |
34028 | DO 200 II=NSAV+1,NSAV+NDECAY | |
34029 | K(II,1)=1 | |
34030 | K(II,3)=IP | |
34031 | K(II,4)=0 | |
34032 | K(II,5)=0 | |
34033 | 200 CONTINUE | |
34034 | N=NSAV+NDECAY | |
34035 | ENDIF | |
34036 | ||
34037 | C...Boost back decay tau and decay products. | |
34038 | DO 210 J=1,4 | |
34039 | P(ITAU,J)=PTAU(J) | |
34040 | 210 CONTINUE | |
34041 | IF(KFORIG.NE.0.OR.MSTJ(28).EQ.2) THEN | |
34042 | CALL PYROBO(NSAV+1,N,THETAU,PHITAU,0D0,0D0,0D0) | |
34043 | IF(KFORIG.NE.0) CALL PYROBO(NSAV+1,N,0D0,0D0,DBETAU(1), | |
34044 | & DBETAU(2),DBETAU(3)) | |
34045 | ||
34046 | C...Skip past ordinary tau decay treatment. | |
34047 | MMAT=0 | |
34048 | MBST=0 | |
34049 | ND=0 | |
34050 | GOTO 630 | |
34051 | ENDIF | |
34052 | ENDIF | |
34053 | ||
34054 | C...B-Bbar mixing: flip sign of meson appropriately. | |
34055 | MMIX=0 | |
34056 | IF((KFA.EQ.511.OR.KFA.EQ.531).AND.MSTJ(26).GE.1) THEN | |
34057 | XBBMIX=PARJ(76) | |
34058 | IF(KFA.EQ.531) XBBMIX=PARJ(77) | |
34059 | IF(SIN(0.5D0*XBBMIX*V(IP,5)/PMAS(KC,4))**2.GT.PYR(0)) MMIX=1 | |
34060 | IF(MMIX.EQ.1) KFS=-KFS | |
34061 | ENDIF | |
34062 | ||
34063 | C...Check existence of decay channels. Particle/antiparticle rules. | |
34064 | KCA=KC | |
34065 | IF(MDCY(KC,2).GT.0) THEN | |
34066 | MDMDCY=MDME(MDCY(KC,2),2) | |
34067 | IF(MDMDCY.GT.80.AND.MDMDCY.LE.90) KCA=MDMDCY | |
34068 | ENDIF | |
34069 | IF(MDCY(KCA,2).LE.0.OR.MDCY(KCA,3).LE.0) THEN | |
34070 | CALL PYERRM(9,'(PYDECY:) no decay channel defined') | |
34071 | RETURN | |
34072 | ENDIF | |
34073 | IF(MOD(KFA/1000,10).EQ.0.AND.KCA.EQ.85) KFS=-KFS | |
34074 | IF(KCHG(KC,3).EQ.0) THEN | |
34075 | KFSP=1 | |
34076 | KFSN=0 | |
34077 | IF(PYR(0).GT.0.5D0) KFS=-KFS | |
34078 | ELSEIF(KFS.GT.0) THEN | |
34079 | KFSP=1 | |
34080 | KFSN=0 | |
34081 | ELSE | |
34082 | KFSP=0 | |
34083 | KFSN=1 | |
34084 | ENDIF | |
34085 | ||
34086 | C...Sum branching ratios of allowed decay channels. | |
34087 | 220 NOPE=0 | |
34088 | BRSU=0D0 | |
34089 | DO 230 IDL=MDCY(KCA,2),MDCY(KCA,2)+MDCY(KCA,3)-1 | |
34090 | IF(MDME(IDL,1).NE.1.AND.KFSP*MDME(IDL,1).NE.2.AND. | |
34091 | & KFSN*MDME(IDL,1).NE.3) GOTO 230 | |
34092 | IF(MDME(IDL,2).GT.100) GOTO 230 | |
34093 | NOPE=NOPE+1 | |
34094 | BRSU=BRSU+BRAT(IDL) | |
34095 | 230 CONTINUE | |
34096 | IF(NOPE.EQ.0) THEN | |
34097 | CALL PYERRM(2,'(PYDECY:) all decay channels closed by user') | |
34098 | RETURN | |
34099 | ENDIF | |
34100 | ||
34101 | C...Select decay channel among allowed ones. | |
34102 | 240 RBR=BRSU*PYR(0) | |
34103 | IDL=MDCY(KCA,2)-1 | |
34104 | 250 IDL=IDL+1 | |
34105 | IF(MDME(IDL,1).NE.1.AND.KFSP*MDME(IDL,1).NE.2.AND. | |
34106 | &KFSN*MDME(IDL,1).NE.3) THEN | |
34107 | IF(IDL.LT.MDCY(KCA,2)+MDCY(KCA,3)-1) GOTO 250 | |
34108 | ELSEIF(MDME(IDL,2).GT.100) THEN | |
34109 | IF(IDL.LT.MDCY(KCA,2)+MDCY(KCA,3)-1) GOTO 250 | |
34110 | ELSE | |
34111 | IDC=IDL | |
34112 | RBR=RBR-BRAT(IDL) | |
34113 | IF(IDL.LT.MDCY(KCA,2)+MDCY(KCA,3)-1.AND.RBR.GT.0D0) GOTO 250 | |
34114 | ENDIF | |
34115 | ||
34116 | C...Start readout of decay channel: matrix element, reset counters. | |
34117 | MMAT=MDME(IDC,2) | |
34118 | 260 NTRY=NTRY+1 | |
34119 | IF(MOD(NTRY,200).EQ.0) THEN | |
34120 | WRITE(CIDC,'(I4)') IDC | |
34121 | CALL PYERRM(4,'(PYDECY:) caught in loop for decay channel'// | |
34122 | & CIDC) | |
34123 | GOTO 240 | |
34124 | ENDIF | |
34125 | IF(NTRY.GT.1000) THEN | |
34126 | CALL PYERRM(14,'(PYDECY:) caught in infinite loop') | |
34127 | IF(MSTU(21).GE.1) RETURN | |
34128 | ENDIF | |
34129 | I=N | |
34130 | NP=0 | |
34131 | NQ=0 | |
34132 | MBST=0 | |
34133 | IF(MMAT.GE.11.AND.P(IP,4).GT.20D0*P(IP,5)) MBST=1 | |
34134 | DO 270 J=1,4 | |
34135 | PV(1,J)=0D0 | |
34136 | IF(MBST.EQ.0) PV(1,J)=P(IP,J) | |
34137 | 270 CONTINUE | |
34138 | IF(MBST.EQ.1) PV(1,4)=P(IP,5) | |
34139 | PV(1,5)=P(IP,5) | |
34140 | PS=0D0 | |
34141 | PSQ=0D0 | |
34142 | MREM=0 | |
34143 | MHADDY=0 | |
34144 | IF(KFA.GT.80) MHADDY=1 | |
34145 | C.. Random flavour and popcorn system memory. | |
34146 | IRNDMO=0 | |
34147 | JTMO=0 | |
34148 | MSTU(121)=0 | |
34149 | MSTU(125)=10 | |
34150 | ||
34151 | C...Read out decay products. Convert to standard flavour code. | |
34152 | JTMAX=5 | |
34153 | IF(MDME(IDC+1,2).EQ.101) JTMAX=10 | |
34154 | DO 280 JT=1,JTMAX | |
34155 | IF(JT.LE.5) KP=KFDP(IDC,JT) | |
34156 | IF(JT.GE.6) KP=KFDP(IDC+1,JT-5) | |
34157 | IF(KP.EQ.0) GOTO 280 | |
34158 | KPA=IABS(KP) | |
34159 | KCP=PYCOMP(KPA) | |
34160 | IF(KPA.GT.80) MHADDY=1 | |
34161 | IF(KCHG(KCP,3).EQ.0.AND.KPA.NE.81.AND.KPA.NE.82) THEN | |
34162 | KFP=KP | |
34163 | ELSEIF(KPA.NE.81.AND.KPA.NE.82) THEN | |
34164 | KFP=KFS*KP | |
34165 | ELSEIF(KPA.EQ.81.AND.MOD(KFA/1000,10).EQ.0) THEN | |
34166 | KFP=-KFS*MOD(KFA/10,10) | |
34167 | ELSEIF(KPA.EQ.81.AND.MOD(KFA/100,10).GE.MOD(KFA/10,10)) THEN | |
34168 | KFP=KFS*(100*MOD(KFA/10,100)+3) | |
34169 | ELSEIF(KPA.EQ.81) THEN | |
34170 | KFP=KFS*(1000*MOD(KFA/10,10)+100*MOD(KFA/100,10)+1) | |
34171 | ELSEIF(KP.EQ.82) THEN | |
34172 | CALL PYDCYK(-KFS*INT(1D0+(2D0+PARJ(2))*PYR(0)),0,KFP,KDUMP) | |
34173 | IF(KFP.EQ.0) GOTO 260 | |
34174 | KFP=-KFP | |
34175 | IRNDMO=1 | |
34176 | MSTJ(93)=1 | |
34177 | IF(PV(1,5).LT.PARJ(32)+2D0*PYMASS(KFP)) GOTO 260 | |
34178 | ELSEIF(KP.EQ.-82) THEN | |
34179 | KFP=MSTU(124) | |
34180 | ENDIF | |
34181 | IF(KPA.EQ.81.OR.KPA.EQ.82) KCP=PYCOMP(KFP) | |
34182 | ||
34183 | C...Add decay product to event record or to quark flavour list. | |
34184 | KFPA=IABS(KFP) | |
34185 | KQP=KCHG(KCP,2) | |
34186 | IF(MMAT.GE.11.AND.MMAT.LE.30.AND.KQP.NE.0) THEN | |
34187 | NQ=NQ+1 | |
34188 | KFLO(NQ)=KFP | |
34189 | C...set rndmflav popcorn system pointer | |
34190 | IF(KP.EQ.82.AND.MSTU(121).GT.0) JTMO=NQ | |
34191 | MSTJ(93)=2 | |
34192 | PSQ=PSQ+PYMASS(KFLO(NQ)) | |
34193 | ELSEIF((MMAT.EQ.42.OR.MMAT.EQ.43.OR.MMAT.EQ.48).AND.NP.EQ.3.AND. | |
34194 | & MOD(NQ,2).EQ.1) THEN | |
34195 | NQ=NQ-1 | |
34196 | PS=PS-P(I,5) | |
34197 | K(I,1)=1 | |
34198 | KFI=K(I,2) | |
34199 | CALL PYKFDI(KFP,KFI,KFLDMP,K(I,2)) | |
34200 | IF(K(I,2).EQ.0) GOTO 260 | |
34201 | MSTJ(93)=1 | |
34202 | P(I,5)=PYMASS(K(I,2)) | |
34203 | PS=PS+P(I,5) | |
34204 | ELSE | |
34205 | I=I+1 | |
34206 | NP=NP+1 | |
34207 | IF(MMAT.NE.33.AND.KQP.NE.0) NQ=NQ+1 | |
34208 | IF(MMAT.EQ.33.AND.KQP.NE.0.AND.KQP.NE.2) NQ=NQ+1 | |
34209 | K(I,1)=1+MOD(NQ,2) | |
34210 | IF(MMAT.EQ.4.AND.JT.LE.2.AND.KFP.EQ.21) K(I,1)=2 | |
34211 | IF(MMAT.EQ.4.AND.JT.EQ.3) K(I,1)=1 | |
34212 | K(I,2)=KFP | |
34213 | K(I,3)=IP | |
34214 | K(I,4)=0 | |
34215 | K(I,5)=0 | |
34216 | P(I,5)=PYMASS(KFP) | |
34217 | PS=PS+P(I,5) | |
34218 | ENDIF | |
34219 | 280 CONTINUE | |
34220 | ||
34221 | C...Check masses for resonance decays. | |
34222 | IF(MHADDY.EQ.0) THEN | |
34223 | IF(PS+PARJ(64).GT.PV(1,5)) GOTO 240 | |
34224 | ENDIF | |
34225 | ||
34226 | C...Choose decay multiplicity in phase space model. | |
34227 | 290 IF(MMAT.GE.11.AND.MMAT.LE.30) THEN | |
34228 | PSP=PS | |
34229 | CNDE=PARJ(61)*LOG(MAX((PV(1,5)-PS-PSQ)/PARJ(62),1.1D0)) | |
34230 | IF(MMAT.EQ.12) CNDE=CNDE+PARJ(63) | |
34231 | 300 NTRY=NTRY+1 | |
34232 | C...Reset popcorn flags if new attempt. Re-select rndmflav if failed. | |
34233 | IF(IRNDMO.EQ.0) THEN | |
34234 | MSTU(121)=0 | |
34235 | JTMO=0 | |
34236 | ELSEIF(IRNDMO.EQ.1) THEN | |
34237 | IRNDMO=2 | |
34238 | ELSE | |
34239 | GOTO 260 | |
34240 | ENDIF | |
34241 | IF(NTRY.GT.1000) THEN | |
34242 | CALL PYERRM(14,'(PYDECY:) caught in infinite loop') | |
34243 | IF(MSTU(21).GE.1) RETURN | |
34244 | ENDIF | |
34245 | IF(MMAT.LE.20) THEN | |
34246 | GAUSS=SQRT(-2D0*CNDE*LOG(MAX(1D-10,PYR(0))))* | |
34247 | & SIN(PARU(2)*PYR(0)) | |
34248 | ND=0.5D0+0.5D0*NP+0.25D0*NQ+CNDE+GAUSS | |
34249 | IF(ND.LT.NP+NQ/2.OR.ND.LT.2.OR.ND.GT.10) GOTO 300 | |
34250 | IF(MMAT.EQ.13.AND.ND.EQ.2) GOTO 300 | |
34251 | IF(MMAT.EQ.14.AND.ND.LE.3) GOTO 300 | |
34252 | IF(MMAT.EQ.15.AND.ND.LE.4) GOTO 300 | |
34253 | ELSE | |
34254 | ND=MMAT-20 | |
34255 | ENDIF | |
34256 | C.. Set maximum popcorn meson number. Test rndmflav popcorn size. | |
34257 | MSTU(125)=ND-NQ/2 | |
34258 | IF(MSTU(121).GT.MSTU(125)) GOTO 300 | |
34259 | ||
34260 | C...Form hadrons from flavour content. | |
34261 | DO 310 JT=1,4 | |
34262 | KFL1(JT)=KFLO(JT) | |
34263 | 310 CONTINUE | |
34264 | IF(ND.EQ.NP+NQ/2) GOTO 330 | |
34265 | DO 320 I=N+NP+1,N+ND-NQ/2 | |
34266 | C.. Stick to started popcorn system, else pick side at random | |
34267 | JT=JTMO | |
34268 | IF(JT.EQ.0) JT=1+INT((NQ-1)*PYR(0)) | |
34269 | CALL PYDCYK(KFL1(JT),0,KFL2,K(I,2)) | |
34270 | IF(K(I,2).EQ.0) GOTO 300 | |
34271 | MSTU(125)=MSTU(125)-1 | |
34272 | JTMO=0 | |
34273 | IF(MSTU(121).GT.0) JTMO=JT | |
34274 | KFL1(JT)=-KFL2 | |
34275 | 320 CONTINUE | |
34276 | 330 JT=2 | |
34277 | JT2=3 | |
34278 | JT3=4 | |
34279 | IF(NQ.EQ.4.AND.PYR(0).LT.PARJ(66)) JT=4 | |
34280 | IF(JT.EQ.4.AND.ISIGN(1,KFL1(1)*(10-IABS(KFL1(1))))* | |
34281 | & ISIGN(1,KFL1(JT)*(10-IABS(KFL1(JT)))).GT.0) JT=3 | |
34282 | IF(JT.EQ.3) JT2=2 | |
34283 | IF(JT.EQ.4) JT3=2 | |
34284 | CALL PYDCYK(KFL1(1),KFL1(JT),KFLDMP,K(N+ND-NQ/2+1,2)) | |
34285 | IF(K(N+ND-NQ/2+1,2).EQ.0) GOTO 300 | |
34286 | IF(NQ.EQ.4) CALL PYDCYK(KFL1(JT2),KFL1(JT3),KFLDMP,K(N+ND,2)) | |
34287 | IF(NQ.EQ.4.AND.K(N+ND,2).EQ.0) GOTO 300 | |
34288 | ||
34289 | C...Check that sum of decay product masses not too large. | |
34290 | PS=PSP | |
34291 | DO 340 I=N+NP+1,N+ND | |
34292 | K(I,1)=1 | |
34293 | K(I,3)=IP | |
34294 | K(I,4)=0 | |
34295 | K(I,5)=0 | |
34296 | P(I,5)=PYMASS(K(I,2)) | |
34297 | PS=PS+P(I,5) | |
34298 | 340 CONTINUE | |
34299 | IF(PS+PARJ(64).GT.PV(1,5)) GOTO 300 | |
34300 | ||
34301 | C...Rescale energy to subtract off spectator quark mass. | |
34302 | ELSEIF((MMAT.EQ.31.OR.MMAT.EQ.33.OR.MMAT.EQ.44) | |
34303 | & .AND.NP.GE.3) THEN | |
34304 | PS=PS-P(N+NP,5) | |
34305 | PQT=(P(N+NP,5)+PARJ(65))/PV(1,5) | |
34306 | DO 350 J=1,5 | |
34307 | P(N+NP,J)=PQT*PV(1,J) | |
34308 | PV(1,J)=(1D0-PQT)*PV(1,J) | |
34309 | 350 CONTINUE | |
34310 | IF(PS+PARJ(64).GT.PV(1,5)) GOTO 260 | |
34311 | ND=NP-1 | |
34312 | MREM=1 | |
34313 | ||
34314 | C...Fully specified final state: check mass broadening effects. | |
34315 | ELSE | |
34316 | IF(NP.GE.2.AND.PS+PARJ(64).GT.PV(1,5)) GOTO 260 | |
34317 | ND=NP | |
34318 | ENDIF | |
34319 | ||
34320 | C...Determine position of grandmother, number of sisters. | |
34321 | NM=0 | |
34322 | KFAS=0 | |
34323 | MSGN=0 | |
34324 | IF(MMAT.EQ.3) THEN | |
34325 | IM=K(IP,3) | |
34326 | IF(IM.LT.0.OR.IM.GE.IP) IM=0 | |
34327 | IF(IM.NE.0) KFAM=IABS(K(IM,2)) | |
34328 | IF(IM.NE.0) THEN | |
34329 | DO 360 IL=MAX(IP-2,IM+1),MIN(IP+2,N) | |
34330 | IF(K(IL,3).EQ.IM) NM=NM+1 | |
34331 | IF(K(IL,3).EQ.IM.AND.IL.NE.IP) ISIS=IL | |
34332 | 360 CONTINUE | |
34333 | IF(NM.NE.2.OR.KFAM.LE.100.OR.MOD(KFAM,10).NE.1.OR. | |
34334 | & MOD(KFAM/1000,10).NE.0) NM=0 | |
34335 | IF(NM.EQ.2) THEN | |
34336 | KFAS=IABS(K(ISIS,2)) | |
34337 | IF((KFAS.LE.100.OR.MOD(KFAS,10).NE.1.OR. | |
34338 | & MOD(KFAS/1000,10).NE.0).AND.KFAS.NE.22) NM=0 | |
34339 | ENDIF | |
34340 | ENDIF | |
34341 | ENDIF | |
34342 | ||
34343 | C...Kinematics of one-particle decays. | |
34344 | IF(ND.EQ.1) THEN | |
34345 | DO 370 J=1,4 | |
34346 | P(N+1,J)=P(IP,J) | |
34347 | 370 CONTINUE | |
34348 | GOTO 630 | |
34349 | ENDIF | |
34350 | ||
34351 | C...Calculate maximum weight ND-particle decay. | |
34352 | PV(ND,5)=P(N+ND,5) | |
34353 | IF(ND.GE.3) THEN | |
34354 | WTMAX=1D0/WTCOR(ND-2) | |
34355 | PMAX=PV(1,5)-PS+P(N+ND,5) | |
34356 | PMIN=0D0 | |
34357 | DO 380 IL=ND-1,1,-1 | |
34358 | PMAX=PMAX+P(N+IL,5) | |
34359 | PMIN=PMIN+P(N+IL+1,5) | |
34360 | WTMAX=WTMAX*PAWT(PMAX,PMIN,P(N+IL,5)) | |
34361 | 380 CONTINUE | |
34362 | ENDIF | |
34363 | ||
34364 | C...Find virtual gamma mass in Dalitz decay. | |
34365 | 390 IF(ND.EQ.2) THEN | |
34366 | ELSEIF(MMAT.EQ.2) THEN | |
34367 | PMES=4D0*PMAS(11,1)**2 | |
34368 | PMRHO2=PMAS(131,1)**2 | |
34369 | PGRHO2=PMAS(131,2)**2 | |
34370 | 400 PMST=PMES*(P(IP,5)**2/PMES)**PYR(0) | |
34371 | WT=(1+0.5D0*PMES/PMST)*SQRT(MAX(0D0,1D0-PMES/PMST))* | |
34372 | & (1D0-PMST/P(IP,5)**2)**3*(1D0+PGRHO2/PMRHO2)/ | |
34373 | & ((1D0-PMST/PMRHO2)**2+PGRHO2/PMRHO2) | |
34374 | IF(WT.LT.PYR(0)) GOTO 400 | |
34375 | PV(2,5)=MAX(2.00001D0*PMAS(11,1),SQRT(PMST)) | |
34376 | ||
34377 | C...M-generator gives weight. If rejected, try again. | |
34378 | ELSE | |
34379 | 410 RORD(1)=1D0 | |
34380 | DO 440 IL1=2,ND-1 | |
34381 | RSAV=PYR(0) | |
34382 | DO 420 IL2=IL1-1,1,-1 | |
34383 | IF(RSAV.LE.RORD(IL2)) GOTO 430 | |
34384 | RORD(IL2+1)=RORD(IL2) | |
34385 | 420 CONTINUE | |
34386 | 430 RORD(IL2+1)=RSAV | |
34387 | 440 CONTINUE | |
34388 | RORD(ND)=0D0 | |
34389 | WT=1D0 | |
34390 | DO 450 IL=ND-1,1,-1 | |
34391 | PV(IL,5)=PV(IL+1,5)+P(N+IL,5)+(RORD(IL)-RORD(IL+1))* | |
34392 | & (PV(1,5)-PS) | |
34393 | WT=WT*PAWT(PV(IL,5),PV(IL+1,5),P(N+IL,5)) | |
34394 | 450 CONTINUE | |
34395 | IF(WT.LT.PYR(0)*WTMAX) GOTO 410 | |
34396 | ENDIF | |
34397 | ||
34398 | C...Perform two-particle decays in respective CM frame. | |
34399 | 460 DO 480 IL=1,ND-1 | |
34400 | PA=PAWT(PV(IL,5),PV(IL+1,5),P(N+IL,5)) | |
34401 | UE(3)=2D0*PYR(0)-1D0 | |
34402 | PHI=PARU(2)*PYR(0) | |
34403 | UE(1)=SQRT(1D0-UE(3)**2)*COS(PHI) | |
34404 | UE(2)=SQRT(1D0-UE(3)**2)*SIN(PHI) | |
34405 | DO 470 J=1,3 | |
34406 | P(N+IL,J)=PA*UE(J) | |
34407 | PV(IL+1,J)=-PA*UE(J) | |
34408 | 470 CONTINUE | |
34409 | P(N+IL,4)=SQRT(PA**2+P(N+IL,5)**2) | |
34410 | PV(IL+1,4)=SQRT(PA**2+PV(IL+1,5)**2) | |
34411 | 480 CONTINUE | |
34412 | ||
34413 | C...Lorentz transform decay products to lab frame. | |
34414 | DO 490 J=1,4 | |
34415 | P(N+ND,J)=PV(ND,J) | |
34416 | 490 CONTINUE | |
34417 | DO 530 IL=ND-1,1,-1 | |
34418 | DO 500 J=1,3 | |
34419 | BE(J)=PV(IL,J)/PV(IL,4) | |
34420 | 500 CONTINUE | |
34421 | GA=PV(IL,4)/PV(IL,5) | |
34422 | DO 520 I=N+IL,N+ND | |
34423 | BEP=BE(1)*P(I,1)+BE(2)*P(I,2)+BE(3)*P(I,3) | |
34424 | DO 510 J=1,3 | |
34425 | P(I,J)=P(I,J)+GA*(GA*BEP/(1D0+GA)+P(I,4))*BE(J) | |
34426 | 510 CONTINUE | |
34427 | P(I,4)=GA*(P(I,4)+BEP) | |
34428 | 520 CONTINUE | |
34429 | 530 CONTINUE | |
34430 | ||
34431 | C...Check that no infinite loop in matrix element weight. | |
34432 | NTRY=NTRY+1 | |
34433 | IF(NTRY.GT.800) GOTO 560 | |
34434 | ||
34435 | C...Matrix elements for omega and phi decays. | |
34436 | IF(MMAT.EQ.1) THEN | |
34437 | WT=(P(N+1,5)*P(N+2,5)*P(N+3,5))**2-(P(N+1,5)*FOUR(N+2,N+3))**2 | |
34438 | & -(P(N+2,5)*FOUR(N+1,N+3))**2-(P(N+3,5)*FOUR(N+1,N+2))**2 | |
34439 | & +2D0*FOUR(N+1,N+2)*FOUR(N+1,N+3)*FOUR(N+2,N+3) | |
34440 | IF(MAX(WT*WTCOR(9)/P(IP,5)**6,0.001D0).LT.PYR(0)) GOTO 390 | |
34441 | ||
34442 | C...Matrix elements for pi0 or eta Dalitz decay to gamma e+ e-. | |
34443 | ELSEIF(MMAT.EQ.2) THEN | |
34444 | FOUR12=FOUR(N+1,N+2) | |
34445 | FOUR13=FOUR(N+1,N+3) | |
34446 | WT=(PMST-0.5D0*PMES)*(FOUR12**2+FOUR13**2)+ | |
34447 | & PMES*(FOUR12*FOUR13+FOUR12**2+FOUR13**2) | |
34448 | IF(WT.LT.PYR(0)*0.25D0*PMST*(P(IP,5)**2-PMST)**2) GOTO 460 | |
34449 | ||
34450 | C...Matrix element for S0 -> S1 + V1 -> S1 + S2 + S3 (S scalar, | |
34451 | C...V vector), of form cos**2(theta02) in V1 rest frame, and for | |
34452 | C...S0 -> gamma + V1 -> gamma + S2 + S3, of form sin**2(theta02). | |
34453 | ELSEIF(MMAT.EQ.3.AND.NM.EQ.2) THEN | |
34454 | FOUR10=FOUR(IP,IM) | |
34455 | FOUR12=FOUR(IP,N+1) | |
34456 | FOUR02=FOUR(IM,N+1) | |
34457 | PMS1=P(IP,5)**2 | |
34458 | PMS0=P(IM,5)**2 | |
34459 | PMS2=P(N+1,5)**2 | |
34460 | IF(KFAS.NE.22) HNUM=(FOUR10*FOUR12-PMS1*FOUR02)**2 | |
34461 | IF(KFAS.EQ.22) HNUM=PMS1*(2D0*FOUR10*FOUR12*FOUR02- | |
34462 | & PMS1*FOUR02**2-PMS0*FOUR12**2-PMS2*FOUR10**2+PMS1*PMS0*PMS2) | |
34463 | HNUM=MAX(1D-6*PMS1**2*PMS0*PMS2,HNUM) | |
34464 | HDEN=(FOUR10**2-PMS1*PMS0)*(FOUR12**2-PMS1*PMS2) | |
34465 | IF(HNUM.LT.PYR(0)*HDEN) GOTO 460 | |
34466 | ||
34467 | C...Matrix element for "onium" -> g + g + g or gamma + g + g. | |
34468 | ELSEIF(MMAT.EQ.4) THEN | |
34469 | HX1=2D0*FOUR(IP,N+1)/P(IP,5)**2 | |
34470 | HX2=2D0*FOUR(IP,N+2)/P(IP,5)**2 | |
34471 | HX3=2D0*FOUR(IP,N+3)/P(IP,5)**2 | |
34472 | WT=((1D0-HX1)/(HX2*HX3))**2+((1D0-HX2)/(HX1*HX3))**2+ | |
34473 | & ((1D0-HX3)/(HX1*HX2))**2 | |
34474 | IF(WT.LT.2D0*PYR(0)) GOTO 390 | |
34475 | IF(K(IP+1,2).EQ.22.AND.(1D0-HX1)*P(IP,5)**2.LT.4D0*PARJ(32)**2) | |
34476 | & GOTO 390 | |
34477 | ||
34478 | C...Effective matrix element for nu spectrum in tau -> nu + hadrons. | |
34479 | ELSEIF(MMAT.EQ.41) THEN | |
34480 | HX1=2D0*FOUR(IP,N+1)/P(IP,5)**2 | |
34481 | HXM=MIN(0.75D0,2D0*(1D0-PS/P(IP,5))) | |
34482 | IF(HX1*(3D0-2D0*HX1).LT.PYR(0)*HXM*(3D0-2D0*HXM)) GOTO 390 | |
34483 | ||
34484 | C...Matrix elements for weak decays (only semileptonic for c and b) | |
34485 | ELSEIF((MMAT.EQ.42.OR.MMAT.EQ.43.OR.MMAT.EQ.44.OR.MMAT.EQ.48) | |
34486 | & .AND.ND.EQ.3) THEN | |
34487 | IF(MBST.EQ.0) WT=FOUR(IP,N+1)*FOUR(N+2,N+3) | |
34488 | IF(MBST.EQ.1) WT=P(IP,5)*P(N+1,4)*FOUR(N+2,N+3) | |
34489 | IF(WT.LT.PYR(0)*P(IP,5)*PV(1,5)**3/WTCOR(10)) GOTO 390 | |
34490 | ELSEIF(MMAT.EQ.42.OR.MMAT.EQ.43.OR.MMAT.EQ.44.OR.MMAT.EQ.48) THEN | |
34491 | DO 550 J=1,4 | |
34492 | P(N+NP+1,J)=0D0 | |
34493 | DO 540 IS=N+3,N+NP | |
34494 | P(N+NP+1,J)=P(N+NP+1,J)+P(IS,J) | |
34495 | 540 CONTINUE | |
34496 | 550 CONTINUE | |
34497 | IF(MBST.EQ.0) WT=FOUR(IP,N+1)*FOUR(N+2,N+NP+1) | |
34498 | IF(MBST.EQ.1) WT=P(IP,5)*P(N+1,4)*FOUR(N+2,N+NP+1) | |
34499 | IF(WT.LT.PYR(0)*P(IP,5)*PV(1,5)**3/WTCOR(10)) GOTO 390 | |
34500 | ENDIF | |
34501 | ||
34502 | C...Scale back energy and reattach spectator. | |
34503 | 560 IF(MREM.EQ.1) THEN | |
34504 | DO 570 J=1,5 | |
34505 | PV(1,J)=PV(1,J)/(1D0-PQT) | |
34506 | 570 CONTINUE | |
34507 | ND=ND+1 | |
34508 | MREM=0 | |
34509 | ENDIF | |
34510 | ||
34511 | C...Low invariant mass for system with spectator quark gives particle, | |
34512 | C...not two jets. Readjust momenta accordingly. | |
34513 | IF(MMAT.EQ.31.AND.ND.EQ.3) THEN | |
34514 | MSTJ(93)=1 | |
34515 | PM2=PYMASS(K(N+2,2)) | |
34516 | MSTJ(93)=1 | |
34517 | PM3=PYMASS(K(N+3,2)) | |
34518 | IF(P(N+2,5)**2+P(N+3,5)**2+2D0*FOUR(N+2,N+3).GE. | |
34519 | & (PARJ(32)+PM2+PM3)**2) GOTO 630 | |
34520 | K(N+2,1)=1 | |
34521 | KFTEMP=K(N+2,2) | |
34522 | CALL PYKFDI(KFTEMP,K(N+3,2),KFLDMP,K(N+2,2)) | |
34523 | IF(K(N+2,2).EQ.0) GOTO 260 | |
34524 | P(N+2,5)=PYMASS(K(N+2,2)) | |
34525 | PS=P(N+1,5)+P(N+2,5) | |
34526 | PV(2,5)=P(N+2,5) | |
34527 | MMAT=0 | |
34528 | ND=2 | |
34529 | GOTO 460 | |
34530 | ELSEIF(MMAT.EQ.44) THEN | |
34531 | MSTJ(93)=1 | |
34532 | PM3=PYMASS(K(N+3,2)) | |
34533 | MSTJ(93)=1 | |
34534 | PM4=PYMASS(K(N+4,2)) | |
34535 | IF(P(N+3,5)**2+P(N+4,5)**2+2D0*FOUR(N+3,N+4).GE. | |
34536 | & (PARJ(32)+PM3+PM4)**2) GOTO 600 | |
34537 | K(N+3,1)=1 | |
34538 | KFTEMP=K(N+3,2) | |
34539 | CALL PYKFDI(KFTEMP,K(N+4,2),KFLDMP,K(N+3,2)) | |
34540 | IF(K(N+3,2).EQ.0) GOTO 260 | |
34541 | P(N+3,5)=PYMASS(K(N+3,2)) | |
34542 | DO 580 J=1,3 | |
34543 | P(N+3,J)=P(N+3,J)+P(N+4,J) | |
34544 | 580 CONTINUE | |
34545 | P(N+3,4)=SQRT(P(N+3,1)**2+P(N+3,2)**2+P(N+3,3)**2+P(N+3,5)**2) | |
34546 | HA=P(N+1,4)**2-P(N+2,4)**2 | |
34547 | HB=HA-(P(N+1,5)**2-P(N+2,5)**2) | |
34548 | HC=(P(N+1,1)-P(N+2,1))**2+(P(N+1,2)-P(N+2,2))**2+ | |
34549 | & (P(N+1,3)-P(N+2,3))**2 | |
34550 | HD=(PV(1,4)-P(N+3,4))**2 | |
34551 | HE=HA**2-2D0*HD*(P(N+1,4)**2+P(N+2,4)**2)+HD**2 | |
34552 | HF=HD*HC-HB**2 | |
34553 | HG=HD*HC-HA*HB | |
34554 | HH=(SQRT(HG**2+HE*HF)-HG)/(2D0*HF) | |
34555 | DO 590 J=1,3 | |
34556 | PCOR=HH*(P(N+1,J)-P(N+2,J)) | |
34557 | P(N+1,J)=P(N+1,J)+PCOR | |
34558 | P(N+2,J)=P(N+2,J)-PCOR | |
34559 | 590 CONTINUE | |
34560 | P(N+1,4)=SQRT(P(N+1,1)**2+P(N+1,2)**2+P(N+1,3)**2+P(N+1,5)**2) | |
34561 | P(N+2,4)=SQRT(P(N+2,1)**2+P(N+2,2)**2+P(N+2,3)**2+P(N+2,5)**2) | |
34562 | ND=ND-1 | |
34563 | ENDIF | |
34564 | ||
34565 | C...Check invariant mass of W jets. May give one particle or start over. | |
34566 | 600 IF((MMAT.EQ.42.OR.MMAT.EQ.43.OR.MMAT.EQ.44.OR.MMAT.EQ.48) | |
34567 | &.AND.IABS(K(N+1,2)).LT.10) THEN | |
34568 | PMR=SQRT(MAX(0D0,P(N+1,5)**2+P(N+2,5)**2+2D0*FOUR(N+1,N+2))) | |
34569 | MSTJ(93)=1 | |
34570 | PM1=PYMASS(K(N+1,2)) | |
34571 | MSTJ(93)=1 | |
34572 | PM2=PYMASS(K(N+2,2)) | |
34573 | IF(PMR.GT.PARJ(32)+PM1+PM2) GOTO 610 | |
34574 | KFLDUM=INT(1.5D0+PYR(0)) | |
34575 | CALL PYKFDI(K(N+1,2),-ISIGN(KFLDUM,K(N+1,2)),KFLDMP,KF1) | |
34576 | CALL PYKFDI(K(N+2,2),-ISIGN(KFLDUM,K(N+2,2)),KFLDMP,KF2) | |
34577 | IF(KF1.EQ.0.OR.KF2.EQ.0) GOTO 260 | |
34578 | PSM=PYMASS(KF1)+PYMASS(KF2) | |
34579 | IF((MMAT.EQ.42.OR.MMAT.EQ.48).AND.PMR.GT.PARJ(64)+PSM) GOTO 610 | |
34580 | IF(MMAT.GE.43.AND.PMR.GT.0.2D0*PARJ(32)+PSM) GOTO 610 | |
34581 | IF(MMAT.EQ.48) GOTO 390 | |
34582 | IF(ND.EQ.4.OR.KFA.EQ.15) GOTO 260 | |
34583 | K(N+1,1)=1 | |
34584 | KFTEMP=K(N+1,2) | |
34585 | CALL PYKFDI(KFTEMP,K(N+2,2),KFLDMP,K(N+1,2)) | |
34586 | IF(K(N+1,2).EQ.0) GOTO 260 | |
34587 | P(N+1,5)=PYMASS(K(N+1,2)) | |
34588 | K(N+2,2)=K(N+3,2) | |
34589 | P(N+2,5)=P(N+3,5) | |
34590 | PS=P(N+1,5)+P(N+2,5) | |
34591 | IF(PS+PARJ(64).GT.PV(1,5)) GOTO 260 | |
34592 | PV(2,5)=P(N+3,5) | |
34593 | MMAT=0 | |
34594 | ND=2 | |
34595 | GOTO 460 | |
34596 | ENDIF | |
34597 | ||
34598 | C...Phase space decay of partons from W decay. | |
34599 | 610 IF((MMAT.EQ.42.OR.MMAT.EQ.48).AND.IABS(K(N+1,2)).LT.10) THEN | |
34600 | KFLO(1)=K(N+1,2) | |
34601 | KFLO(2)=K(N+2,2) | |
34602 | K(N+1,1)=K(N+3,1) | |
34603 | K(N+1,2)=K(N+3,2) | |
34604 | DO 620 J=1,5 | |
34605 | PV(1,J)=P(N+1,J)+P(N+2,J) | |
34606 | P(N+1,J)=P(N+3,J) | |
34607 | 620 CONTINUE | |
34608 | PV(1,5)=PMR | |
34609 | N=N+1 | |
34610 | NP=0 | |
34611 | NQ=2 | |
34612 | PS=0D0 | |
34613 | MSTJ(93)=2 | |
34614 | PSQ=PYMASS(KFLO(1)) | |
34615 | MSTJ(93)=2 | |
34616 | PSQ=PSQ+PYMASS(KFLO(2)) | |
34617 | MMAT=11 | |
34618 | GOTO 290 | |
34619 | ENDIF | |
34620 | ||
34621 | C...Boost back for rapidly moving particle. | |
34622 | 630 N=N+ND | |
34623 | IF(MBST.EQ.1) THEN | |
34624 | DO 640 J=1,3 | |
34625 | BE(J)=P(IP,J)/P(IP,4) | |
34626 | 640 CONTINUE | |
34627 | GA=P(IP,4)/P(IP,5) | |
34628 | DO 660 I=NSAV+1,N | |
34629 | BEP=BE(1)*P(I,1)+BE(2)*P(I,2)+BE(3)*P(I,3) | |
34630 | DO 650 J=1,3 | |
34631 | P(I,J)=P(I,J)+GA*(GA*BEP/(1D0+GA)+P(I,4))*BE(J) | |
34632 | 650 CONTINUE | |
34633 | P(I,4)=GA*(P(I,4)+BEP) | |
34634 | 660 CONTINUE | |
34635 | ENDIF | |
34636 | ||
34637 | C...Fill in position of decay vertex. | |
34638 | DO 680 I=NSAV+1,N | |
34639 | DO 670 J=1,4 | |
34640 | V(I,J)=VDCY(J) | |
34641 | 670 CONTINUE | |
34642 | V(I,5)=0D0 | |
34643 | 680 CONTINUE | |
34644 | ||
34645 | C...Set up for parton shower evolution from jets. | |
34646 | IF(MSTJ(23).GE.1.AND.MMAT.EQ.4.AND.K(NSAV+1,2).EQ.21) THEN | |
34647 | K(NSAV+1,1)=3 | |
34648 | K(NSAV+2,1)=3 | |
34649 | K(NSAV+3,1)=3 | |
34650 | K(NSAV+1,4)=MSTU(5)*(NSAV+2) | |
34651 | K(NSAV+1,5)=MSTU(5)*(NSAV+3) | |
34652 | K(NSAV+2,4)=MSTU(5)*(NSAV+3) | |
34653 | K(NSAV+2,5)=MSTU(5)*(NSAV+1) | |
34654 | K(NSAV+3,4)=MSTU(5)*(NSAV+1) | |
34655 | K(NSAV+3,5)=MSTU(5)*(NSAV+2) | |
34656 | MSTJ(92)=-(NSAV+1) | |
34657 | ELSEIF(MSTJ(23).GE.1.AND.MMAT.EQ.4) THEN | |
34658 | K(NSAV+2,1)=3 | |
34659 | K(NSAV+3,1)=3 | |
34660 | K(NSAV+2,4)=MSTU(5)*(NSAV+3) | |
34661 | K(NSAV+2,5)=MSTU(5)*(NSAV+3) | |
34662 | K(NSAV+3,4)=MSTU(5)*(NSAV+2) | |
34663 | K(NSAV+3,5)=MSTU(5)*(NSAV+2) | |
34664 | MSTJ(92)=NSAV+2 | |
34665 | ELSEIF(MSTJ(23).GE.1.AND.(MMAT.EQ.32.OR.MMAT.EQ.44).AND. | |
34666 | & IABS(K(NSAV+1,2)).LE.10.AND.IABS(K(NSAV+2,2)).LE.10) THEN | |
34667 | K(NSAV+1,1)=3 | |
34668 | K(NSAV+2,1)=3 | |
34669 | K(NSAV+1,4)=MSTU(5)*(NSAV+2) | |
34670 | K(NSAV+1,5)=MSTU(5)*(NSAV+2) | |
34671 | K(NSAV+2,4)=MSTU(5)*(NSAV+1) | |
34672 | K(NSAV+2,5)=MSTU(5)*(NSAV+1) | |
34673 | MSTJ(92)=NSAV+1 | |
34674 | ELSEIF(MSTJ(23).GE.1.AND.(MMAT.EQ.32.OR.MMAT.EQ.44).AND. | |
34675 | & IABS(K(NSAV+1,2)).LE.20.AND.IABS(K(NSAV+2,2)).LE.20) THEN | |
34676 | MSTJ(92)=NSAV+1 | |
34677 | ELSEIF(MSTJ(23).GE.1.AND.MMAT.EQ.33.AND.IABS(K(NSAV+2,2)).EQ.21) | |
34678 | & THEN | |
34679 | K(NSAV+1,1)=3 | |
34680 | K(NSAV+2,1)=3 | |
34681 | K(NSAV+3,1)=3 | |
34682 | KCP=PYCOMP(K(NSAV+1,2)) | |
34683 | KQP=KCHG(KCP,2)*ISIGN(1,K(NSAV+1,2)) | |
34684 | JCON=4 | |
34685 | IF(KQP.LT.0) JCON=5 | |
34686 | K(NSAV+1,JCON)=MSTU(5)*(NSAV+2) | |
34687 | K(NSAV+2,9-JCON)=MSTU(5)*(NSAV+1) | |
34688 | K(NSAV+2,JCON)=MSTU(5)*(NSAV+3) | |
34689 | K(NSAV+3,9-JCON)=MSTU(5)*(NSAV+2) | |
34690 | MSTJ(92)=NSAV+1 | |
34691 | ELSEIF(MSTJ(23).GE.1.AND.MMAT.EQ.33) THEN | |
34692 | K(NSAV+1,1)=3 | |
34693 | K(NSAV+3,1)=3 | |
34694 | K(NSAV+1,4)=MSTU(5)*(NSAV+3) | |
34695 | K(NSAV+1,5)=MSTU(5)*(NSAV+3) | |
34696 | K(NSAV+3,4)=MSTU(5)*(NSAV+1) | |
34697 | K(NSAV+3,5)=MSTU(5)*(NSAV+1) | |
34698 | MSTJ(92)=NSAV+1 | |
34699 | ENDIF | |
34700 | ||
34701 | C...Mark decayed particle; special option for B-Bbar mixing. | |
34702 | IF(K(IP,1).EQ.5) K(IP,1)=15 | |
34703 | IF(K(IP,1).LE.10) K(IP,1)=11 | |
34704 | IF(MMIX.EQ.1.AND.MSTJ(26).EQ.2.AND.K(IP,1).EQ.11) K(IP,1)=12 | |
34705 | K(IP,4)=NSAV+1 | |
34706 | K(IP,5)=N | |
34707 | ||
34708 | RETURN | |
34709 | END | |
34710 | ||
34711 | C********************************************************************* | |
34712 | ||
34713 | C...PYDCYK | |
34714 | C...Handles flavour production in the decay of unstable particles | |
34715 | C...and small string clusters. | |
34716 | ||
34717 | SUBROUTINE PYDCYK(KFL1,KFL2,KFL3,KF) | |
34718 | ||
34719 | C...Double precision and integer declarations. | |
34720 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
34721 | INTEGER PYK,PYCHGE,PYCOMP | |
34722 | C...Commonblocks. | |
34723 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
34724 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
34725 | SAVE /PYDAT1/,/PYDAT2/ | |
34726 | ||
34727 | ||
34728 | C.. Call PYKFDI directly if no popcorn option is on | |
34729 | IF(MSTJ(12).LT.2) THEN | |
34730 | CALL PYKFDI(KFL1,KFL2,KFL3,KF) | |
34731 | MSTU(124)=KFL3 | |
34732 | RETURN | |
34733 | ENDIF | |
34734 | ||
34735 | KFL3=0 | |
34736 | KF=0 | |
34737 | IF(KFL1.EQ.0) RETURN | |
34738 | KF1A=IABS(KFL1) | |
34739 | KF2A=IABS(KFL2) | |
34740 | ||
34741 | NSTO=130 | |
34742 | NMAX=MIN(MSTU(125),10) | |
34743 | ||
34744 | C.. Identify rank 0 cluster qq | |
34745 | IRANK=1 | |
34746 | IF(KF1A.GT.10.AND.KF1A.LT.10000) IRANK=0 | |
34747 | ||
34748 | IF(KF2A.GT.0)THEN | |
34749 | C.. Join jets: Fails if store not empty | |
34750 | IF(MSTU(121).GT.0) THEN | |
34751 | MSTU(121)=0 | |
34752 | RETURN | |
34753 | ENDIF | |
34754 | CALL PYKFDI(KFL1,KFL2,KFL3,KF) | |
34755 | ELSEIF(KF1A.GT.10.AND.MSTU(121).GT.0)THEN | |
34756 | C.. Pick popcorn meson from store, return same qq, decrease store | |
34757 | KF=MSTU(NSTO+MSTU(121)) | |
34758 | KFL3=-KFL1 | |
34759 | MSTU(121)=MSTU(121)-1 | |
34760 | ELSE | |
34761 | C.. Generate new flavour. Then done if no diquark is generated | |
34762 | 100 CALL PYKFDI(KFL1,0,KFL3,KF) | |
34763 | IF(MSTU(121).EQ.-1) GOTO 100 | |
34764 | MSTU(124)=KFL3 | |
34765 | IF(KF.EQ.0.OR.IABS(KFL3).LE.10) RETURN | |
34766 | ||
34767 | C.. Simple case if no dynamical popcorn suppressions are considered | |
34768 | IF(MSTJ(12).LT.4) THEN | |
34769 | IF(MSTU(121).EQ.0) RETURN | |
34770 | NMES=1 | |
34771 | KFPREV=-KFL3 | |
34772 | CALL PYKFDI(KFPREV,0,KFL3,KFM) | |
34773 | C.. Due to eta+eta' suppr., a qq->M+qq attempt might end as qq->B+q | |
34774 | IF(IABS(KFL3).LE.10)THEN | |
34775 | KFL3=-KFPREV | |
34776 | RETURN | |
34777 | ENDIF | |
34778 | GOTO 120 | |
34779 | ENDIF | |
34780 | ||
34781 | C test output qq against fake Gamma, then return if no popcorn. | |
34782 | GB=2D0 | |
34783 | IF(IRANK.NE.0)THEN | |
34784 | CALL PYZDIS(1,2103,5D0,Z) | |
34785 | GB=3D0*(1D0-Z)/Z | |
34786 | IF(1D0-PARF(192)**GB.LT.PYR(0)) THEN | |
34787 | MSTU(121)=0 | |
34788 | GOTO 100 | |
34789 | ENDIF | |
34790 | ENDIF | |
34791 | IF(MSTU(121).EQ.0) RETURN | |
34792 | ||
34793 | C..Set store size memory. Pick fake dynamical variables of qq. | |
34794 | NMES=MSTU(121) | |
34795 | CALL PYPTDI(1,PX3,PY3) | |
34796 | X=1D0 | |
34797 | POPM=0D0 | |
34798 | G=GB | |
34799 | POPG=GB | |
34800 | ||
34801 | C.. Pick next popcorn meson, test with fake dynamical variables | |
34802 | 110 KFPREV=-KFL3 | |
34803 | PX1=-PX3 | |
34804 | PY1=-PY3 | |
34805 | CALL PYKFDI(KFPREV,0,KFL3,KFM) | |
34806 | IF(MSTU(121).EQ.-1) GOTO 100 | |
34807 | CALL PYPTDI(KFL3,PX3,PY3) | |
34808 | PM=PYMASS(KFM)**2+(PX1+PX3)**2+(PY1+PY3)**2 | |
34809 | CALL PYZDIS(KFPREV,KFL3,PM,Z) | |
34810 | G=(1D0-Z)*(G+PM/Z) | |
34811 | X=(1D0-Z)*X | |
34812 | ||
34813 | PTST=1D0 | |
34814 | GTST=1D0 | |
34815 | RTST=PYR(0) | |
34816 | IF(MSTJ(12).GT.4)THEN | |
34817 | POPMN=SQRT((1D0-X)*(G/X-GB)) | |
34818 | POPM=POPM+PMAS(PYCOMP(KFM),1)-PMAS(PYCOMP(KFM),3) | |
34819 | PTST=EXP((POPM-POPMN)*PARF(193)) | |
34820 | POPM=POPMN | |
34821 | ENDIF | |
34822 | IF(IRANK.NE.0)THEN | |
34823 | POPGN=X*GB | |
34824 | GTST=(1D0-PARF(192)**POPGN)/(1D0-PARF(192)**POPG) | |
34825 | POPG=POPGN | |
34826 | ENDIF | |
34827 | IF(RTST.GT.PTST*GTST)THEN | |
34828 | MSTU(121)=0 | |
34829 | IF(RTST.GT.PTST) MSTU(121)=-1 | |
34830 | GOTO 100 | |
34831 | ENDIF | |
34832 | ||
34833 | C.. Store meson | |
34834 | 120 IF(NMES.LE.NMAX) MSTU(NSTO+MSTU(121)+1)=KFM | |
34835 | IF(MSTU(121).GT.0) GOTO 110 | |
34836 | ||
34837 | C.. Test accepted system size. If OK set global popcorn size variable. | |
34838 | IF(NMES.GT.NMAX)THEN | |
34839 | KF=0 | |
34840 | KFL3=0 | |
34841 | RETURN | |
34842 | ENDIF | |
34843 | MSTU(121)=NMES | |
34844 | ENDIF | |
34845 | ||
34846 | RETURN | |
34847 | END | |
34848 | ||
34849 | C******************************************************************** | |
34850 | ||
34851 | C...PYKFDI | |
34852 | C...Generates a new flavour pair and combines off a hadron | |
34853 | ||
34854 | SUBROUTINE PYKFDI(KFL1,KFL2,KFL3,KF) | |
34855 | ||
34856 | C...Double precision and integer declarations. | |
34857 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
34858 | INTEGER PYK,PYCHGE,PYCOMP | |
34859 | C...Commonblocks. | |
34860 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
34861 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
34862 | SAVE /PYDAT1/,/PYDAT2/ | |
34863 | C...Local arrays. | |
34864 | DIMENSION PD(7) | |
34865 | ||
34866 | IF(MSTU(123).EQ.0.AND.MSTJ(12).GT.0) CALL PYKFIN | |
34867 | ||
34868 | C...Default flavour values. Input consistency checks. | |
34869 | KF1A=IABS(KFL1) | |
34870 | KF2A=IABS(KFL2) | |
34871 | KFL3=0 | |
34872 | KF=0 | |
34873 | IF(KF1A.EQ.0) RETURN | |
34874 | IF(KF2A.NE.0)THEN | |
34875 | IF(KF1A.LE.10.AND.KF2A.LE.10.AND.KFL1*KFL2.GT.0) RETURN | |
34876 | IF(KF1A.GT.10.AND.KF2A.GT.10) RETURN | |
34877 | IF((KF1A.GT.10.OR.KF2A.GT.10).AND.KFL1*KFL2.LT.0) RETURN | |
34878 | ENDIF | |
34879 | ||
34880 | C...Check if tabulated flavour probabilities are to be used. | |
34881 | IF(MSTJ(15).EQ.1) THEN | |
34882 | IF(MSTJ(12).GE.5) CALL PYERRM(29, | |
34883 | & '(PYKFDI:) Sorry, option MSTJ(15)=1 not available' // | |
34884 | & ' together with MSTJ(12)>=5 modification') | |
34885 | KTAB1=-1 | |
34886 | IF(KF1A.GE.1.AND.KF1A.LE.6) KTAB1=KF1A | |
34887 | KFL1A=MOD(KF1A/1000,10) | |
34888 | KFL1B=MOD(KF1A/100,10) | |
34889 | KFL1S=MOD(KF1A,10) | |
34890 | IF(KFL1A.GE.1.AND.KFL1A.LE.4.AND.KFL1B.GE.1.AND.KFL1B.LE.4) | |
34891 | & KTAB1=6+KFL1A*(KFL1A-2)+2*KFL1B+(KFL1S-1)/2 | |
34892 | IF(KFL1A.GE.1.AND.KFL1A.LE.4.AND.KFL1A.EQ.KFL1B) KTAB1=KTAB1-1 | |
34893 | IF(KF1A.GE.1.AND.KF1A.LE.6) KFL1A=KF1A | |
34894 | KTAB2=0 | |
34895 | IF(KF2A.NE.0) THEN | |
34896 | KTAB2=-1 | |
34897 | IF(KF2A.GE.1.AND.KF2A.LE.6) KTAB2=KF2A | |
34898 | KFL2A=MOD(KF2A/1000,10) | |
34899 | KFL2B=MOD(KF2A/100,10) | |
34900 | KFL2S=MOD(KF2A,10) | |
34901 | IF(KFL2A.GE.1.AND.KFL2A.LE.4.AND.KFL2B.GE.1.AND.KFL2B.LE.4) | |
34902 | & KTAB2=6+KFL2A*(KFL2A-2)+2*KFL2B+(KFL2S-1)/2 | |
34903 | IF(KFL2A.GE.1.AND.KFL2A.LE.4.AND.KFL2A.EQ.KFL2B) KTAB2=KTAB2-1 | |
34904 | ENDIF | |
34905 | IF(KTAB1.GE.0.AND.KTAB2.GE.0) GOTO 140 | |
34906 | ENDIF | |
34907 | ||
34908 | C.. Recognize rank 0 diquark case | |
34909 | 100 IRANK=1 | |
34910 | KFDIQ=MAX(KF1A,KF2A) | |
34911 | IF(KFDIQ.GT.10.AND.KFDIQ.LT.10000) IRANK=0 | |
34912 | ||
34913 | C.. Join two flavours to meson or baryon. Test for popcorn. | |
34914 | IF(KF2A.GT.0)THEN | |
34915 | MBARY=0 | |
34916 | IF(KFDIQ.GT.10) THEN | |
34917 | IF(IRANK.EQ.0.AND.MSTJ(12).LT.5) | |
34918 | & CALL PYNMES(KFDIQ) | |
34919 | IF(MSTU(121).NE.0) RETURN | |
34920 | MBARY=2 | |
34921 | ENDIF | |
34922 | KFQOLD=KF1A | |
34923 | KFQVER=KF2A | |
34924 | GOTO 130 | |
34925 | ENDIF | |
34926 | ||
34927 | C.. Separate incoming flavours, curtain flavour consistency check | |
34928 | KFIN=KFL1 | |
34929 | KFQOLD=KF1A | |
34930 | KFQPOP=KF1A/10000 | |
34931 | IF(KF1A.GT.10)THEN | |
34932 | KFIN=-KFL1 | |
34933 | KFL1A=MOD(KF1A/1000,10) | |
34934 | KFL1B=MOD(KF1A/100,10) | |
34935 | IF(IRANK.EQ.0)THEN | |
34936 | QAWT=1D0 | |
34937 | IF(KFL1A.GE.3) QAWT=PARF(136+KFL1A/4) | |
34938 | IF(KFL1B.GE.3) QAWT=QAWT/PARF(136+KFL1B/4) | |
34939 | KFQPOP=KFL1A+(KFL1B-KFL1A)*INT(1D0/(QAWT+1D0)+PYR(0)) | |
34940 | ENDIF | |
34941 | IF(KFQPOP.NE.KFL1B.AND.KFQPOP.NE.KFL1A) RETURN | |
34942 | KFQOLD=KFL1A+KFL1B-KFQPOP | |
34943 | ENDIF | |
34944 | ||
34945 | C...Meson/baryon choice. Set number of mesons if starting a popcorn | |
34946 | C...system. | |
34947 | 110 MBARY=0 | |
34948 | IF(KF1A.LE.10.AND.MSTJ(12).GT.0)THEN | |
34949 | IF(MSTU(121).EQ.-1.OR.(1D0+PARJ(1))*PYR(0).GT.1D0)THEN | |
34950 | MBARY=1 | |
34951 | CALL PYNMES(0) | |
34952 | ENDIF | |
34953 | ELSEIF(KF1A.GT.10)THEN | |
34954 | MBARY=2 | |
34955 | IF(IRANK.EQ.0) CALL PYNMES(KF1A) | |
34956 | IF(MSTU(121).GT.0) MBARY=-1 | |
34957 | ENDIF | |
34958 | ||
34959 | C..x->H+q: Choose single vertex quark. Jump to form hadron. | |
34960 | IF(MBARY.EQ.0.OR.MBARY.EQ.2)THEN | |
34961 | KFQVER=1+INT((2D0+PARJ(2))*PYR(0)) | |
34962 | KFL3=ISIGN(KFQVER,-KFIN) | |
34963 | GOTO 130 | |
34964 | ENDIF | |
34965 | ||
34966 | C..x->H+qq: (IDW=proper PARF position for diquark weights) | |
34967 | IDW=160 | |
34968 | C.. q->B+qq: Get curtain quark, different weights for q->B+B and | |
34969 | C.. q->B+M+... | |
34970 | IF(MBARY.EQ.1)THEN | |
34971 | IF(MSTU(121).EQ.0) IDW=150 | |
34972 | SQWT=PARF(IDW+1) | |
34973 | IF(MSTU(121).GT.0) SQWT=SQWT*PARF(135)*PARF(138)**MSTU(121) | |
34974 | KFQPOP=1+INT((2D0+SQWT)*PYR(0)) | |
34975 | C.. Shift to s-curtain parameters if needed | |
34976 | IF(KFQPOP.GE.3.AND.MSTJ(12).GE.5)THEN | |
34977 | PARF(194)=PARF(138)*PARF(139) | |
34978 | PARF(193)=PARJ(8)+PARJ(9) | |
34979 | ENDIF | |
34980 | ENDIF | |
34981 | ||
34982 | C.. x->H+qq: Get vertex quark | |
34983 | IF(MBARY.EQ.-1.AND.MSTJ(12).GE.5)THEN | |
34984 | IDW=MSTU(122) | |
34985 | MSTU(121)=MSTU(121)-1 | |
34986 | IF(IDW.EQ.170) THEN | |
34987 | IF(MSTU(121).EQ.0)THEN | |
34988 | IPOS=3*MIN(KFQPOP-1,2)+MIN(KFQOLD-1,2) | |
34989 | ELSE | |
34990 | IPOS=3*3+3*MAX(0,MIN(KFQPOP-2,1))+MIN(KFQOLD-1,2) | |
34991 | ENDIF | |
34992 | ELSE | |
34993 | IF(MSTU(121).EQ.0)THEN | |
34994 | IPOS=3*5+5*MIN(KFQPOP-1,3)+MIN(KFQOLD-1,4) | |
34995 | ELSE | |
34996 | IPOS=3*5+5*4+MIN(KFQOLD-1,4) | |
34997 | ENDIF | |
34998 | ENDIF | |
34999 | IPOS=200+30*IPOS+1 | |
35000 | ||
35001 | IMES=-1 | |
35002 | RMES=PYR(0)*PARF(194) | |
35003 | 120 IMES=IMES+1 | |
35004 | RMES=RMES-PARF(IPOS+IMES) | |
35005 | IF(IMES.EQ.30) THEN | |
35006 | MSTU(121)=-1 | |
35007 | KF=-111 | |
35008 | RETURN | |
35009 | ENDIF | |
35010 | IF(RMES.GT.0D0) GOTO 120 | |
35011 | KMUL=IMES/5 | |
35012 | KFJ=2*KMUL+1 | |
35013 | IF(KMUL.EQ.2) KFJ=10003 | |
35014 | IF(KMUL.EQ.3) KFJ=10001 | |
35015 | IF(KMUL.EQ.4) KFJ=20003 | |
35016 | IF(KMUL.EQ.5) KFJ=5 | |
35017 | IDIAG=0 | |
35018 | KFQVER=MOD(IMES,5)+1 | |
35019 | IF(KFQVER.GE.KFQOLD) KFQVER=KFQVER+1 | |
35020 | IF(KFQVER.GT.3)THEN | |
35021 | IDIAG=KFQVER-3 | |
35022 | KFQVER=KFQOLD | |
35023 | ENDIF | |
35024 | ELSE | |
35025 | IF(MBARY.EQ.-1) IDW=170 | |
35026 | SQWT=PARF(IDW+2) | |
35027 | IF(KFQPOP.EQ.3) SQWT=PARF(IDW+3) | |
35028 | IF(KFQPOP.GT.3) SQWT=PARF(IDW+3)*(1D0/PARF(IDW+5)+1D0)/2D0 | |
35029 | KFQVER=MIN(3,1+INT((2D0+SQWT)*PYR(0))) | |
35030 | IF(KFQPOP.LT.3.AND.KFQVER.LT.3)THEN | |
35031 | KFQVER=KFQPOP | |
35032 | IF(PYR(0).GT.PARF(IDW+4)) KFQVER=3-KFQPOP | |
35033 | ENDIF | |
35034 | ENDIF | |
35035 | ||
35036 | C..x->H+qq: form outgoing diquark with KFQPOP flag at 10000-pos | |
35037 | KFLDS=3 | |
35038 | IF(KFQPOP.NE.KFQVER)THEN | |
35039 | SWT=PARF(IDW+7) | |
35040 | IF(KFQVER.EQ.3) SWT=PARF(IDW+6) | |
35041 | IF(KFQPOP.GE.3) SWT=PARF(IDW+5) | |
35042 | IF((1D0+SWT)*PYR(0).LT.1D0) KFLDS=1 | |
35043 | ENDIF | |
35044 | KFDIQ=900*MAX(KFQVER,KFQPOP)+100*(KFQVER+KFQPOP)+KFLDS | |
35045 | & +10000*KFQPOP | |
35046 | KFL3=ISIGN(KFDIQ,KFIN) | |
35047 | ||
35048 | C..x->M+y: flavour for meson. | |
35049 | 130 IF(MBARY.LE.0)THEN | |
35050 | KFLA=MAX(KFQOLD,KFQVER) | |
35051 | KFLB=MIN(KFQOLD,KFQVER) | |
35052 | KFS=ISIGN(1,KFL1) | |
35053 | IF(KFLA.NE.KFQOLD) KFS=-KFS | |
35054 | C... Form meson, with spin and flavour mixing for diagonal states. | |
35055 | IF(MBARY.EQ.-1.AND.MSTJ(12).GE.5)THEN | |
35056 | IF(IDIAG.GT.0) KF=110*IDIAG+KFJ | |
35057 | IF(IDIAG.EQ.0) KF=(100*KFLA+10*KFLB+KFJ)*KFS*(-1)**KFLA | |
35058 | RETURN | |
35059 | ENDIF | |
35060 | IF(KFLA.LE.2) KMUL=INT(PARJ(11)+PYR(0)) | |
35061 | IF(KFLA.EQ.3) KMUL=INT(PARJ(12)+PYR(0)) | |
35062 | IF(KFLA.GE.4) KMUL=INT(PARJ(13)+PYR(0)) | |
35063 | IF(KMUL.EQ.0.AND.PARJ(14).GT.0D0)THEN | |
35064 | IF(PYR(0).LT.PARJ(14)) KMUL=2 | |
35065 | ELSEIF(KMUL.EQ.1.AND.PARJ(15)+PARJ(16)+PARJ(17).GT.0D0)THEN | |
35066 | RMUL=PYR(0) | |
35067 | IF(RMUL.LT.PARJ(15)) KMUL=3 | |
35068 | IF(KMUL.EQ.1.AND.RMUL.LT.PARJ(15)+PARJ(16)) KMUL=4 | |
35069 | IF(KMUL.EQ.1.AND.RMUL.LT.PARJ(15)+PARJ(16)+PARJ(17)) KMUL=5 | |
35070 | ENDIF | |
35071 | KFLS=3 | |
35072 | IF(KMUL.EQ.0.OR.KMUL.EQ.3) KFLS=1 | |
35073 | IF(KMUL.EQ.5) KFLS=5 | |
35074 | IF(KFLA.NE.KFLB)THEN | |
35075 | KF=(100*KFLA+10*KFLB+KFLS)*KFS*(-1)**KFLA | |
35076 | ELSE | |
35077 | RMIX=PYR(0) | |
35078 | IMIX=2*KFLA+10*KMUL | |
35079 | IF(KFLA.LE.3) KF=110*(1+INT(RMIX+PARF(IMIX-1))+ | |
35080 | & INT(RMIX+PARF(IMIX)))+KFLS | |
35081 | IF(KFLA.GE.4) KF=110*KFLA+KFLS | |
35082 | ENDIF | |
35083 | IF(KMUL.EQ.2.OR.KMUL.EQ.3) KF=KF+ISIGN(10000,KF) | |
35084 | IF(KMUL.EQ.4) KF=KF+ISIGN(20000,KF) | |
35085 | ||
35086 | C..Optional extra suppression of eta and eta'. | |
35087 | C..Allow shift to qq->B+q in old version (set IRANK to 0) | |
35088 | IF(KF.EQ.221.OR.KF.EQ.331)THEN | |
35089 | IF(PYR(0).GT.PARJ(25+KF/300))THEN | |
35090 | IF(KF2A.GT.0) GOTO 130 | |
35091 | IF(MSTJ(12).LT.4) IRANK=0 | |
35092 | GOTO 110 | |
35093 | ENDIF | |
35094 | ENDIF | |
35095 | MSTU(121)=0 | |
35096 | ||
35097 | C.. x->B+y: Flavour for baryon | |
35098 | ELSE | |
35099 | KFLA=KFQVER | |
35100 | IF(KF1A.LE.10) KFLA=KFQOLD | |
35101 | KFLB=MOD(KFDIQ/1000,10) | |
35102 | KFLC=MOD(KFDIQ/100,10) | |
35103 | KFLDS=MOD(KFDIQ,10) | |
35104 | KFLD=MAX(KFLA,KFLB,KFLC) | |
35105 | KFLF=MIN(KFLA,KFLB,KFLC) | |
35106 | KFLE=KFLA+KFLB+KFLC-KFLD-KFLF | |
35107 | ||
35108 | C... SU(6) factors for formation of baryon. | |
35109 | KBARY=3 | |
35110 | KDMAX=5 | |
35111 | KFLG=KFLB | |
35112 | IF(KFLB.NE.KFLC)THEN | |
35113 | KBARY=2*KFLDS-1 | |
35114 | KDMAX=1+KFLDS/2 | |
35115 | IF(KFLB.GT.2) KDMAX=KDMAX+2 | |
35116 | ENDIF | |
35117 | IF(KFLA.NE.KFLB.AND.KFLA.NE.KFLC)THEN | |
35118 | KBARY=KBARY+1 | |
35119 | KFLG=KFLA | |
35120 | ENDIF | |
35121 | ||
35122 | SU6MAX=PARF(140+KDMAX) | |
35123 | SU6DEC=PARJ(18) | |
35124 | SU6S =PARF(146) | |
35125 | IF(MSTJ(12).GE.5.AND.IRANK.EQ.0) THEN | |
35126 | SU6MAX=1D0 | |
35127 | SU6DEC=1D0 | |
35128 | SU6S =1D0 | |
35129 | ENDIF | |
35130 | SU6OCT=PARF(60+KBARY) | |
35131 | IF(KFLG.GT.MAX(KFLA+KFLB-KFLG,2))THEN | |
35132 | SU6OCT=SU6OCT*4*SU6S/(3*SU6S+1) | |
35133 | IF(KBARY.EQ.2) SU6OCT=PARF(60+KBARY)*4/(3*SU6S+1) | |
35134 | ELSE | |
35135 | IF(KBARY.EQ.6) SU6OCT=SU6OCT*(3+SU6S)/(3*SU6S+1) | |
35136 | ENDIF | |
35137 | SU6WT=SU6OCT+SU6DEC*PARF(70+KBARY) | |
35138 | ||
35139 | C.. SU(6) test. Old options enforce new baryon if q->B+qq is rejected. | |
35140 | IF(SU6WT.LT.PYR(0)*SU6MAX.AND.KF2A.EQ.0)THEN | |
35141 | MSTU(121)=0 | |
35142 | IF(MSTJ(12).LE.2.AND.MBARY.EQ.1) MSTU(121)=-1 | |
35143 | GOTO 110 | |
35144 | ENDIF | |
35145 | ||
35146 | C.. Form baryon. Distinguish Lambda- and Sigmalike baryons. | |
35147 | KSIG=1 | |
35148 | KFLS=2 | |
35149 | IF(SU6WT*PYR(0).GT.SU6OCT) KFLS=4 | |
35150 | IF(KFLS.EQ.2.AND.KFLD.GT.KFLE.AND.KFLE.GT.KFLF)THEN | |
35151 | KSIG=KFLDS/3 | |
35152 | IF(KFLA.NE.KFLD) KSIG=INT(3*SU6S/(3*SU6S+KFLDS**2)+PYR(0)) | |
35153 | ENDIF | |
35154 | KF=ISIGN(1000*KFLD+100*KFLE+10*KFLF+KFLS,KFL1) | |
35155 | IF(KSIG.EQ.0) KF=ISIGN(1000*KFLD+100*KFLF+10*KFLE+KFLS,KFL1) | |
35156 | ENDIF | |
35157 | RETURN | |
35158 | ||
35159 | C...Use tabulated probabilities to select new flavour and hadron. | |
35160 | 140 IF(KTAB2.EQ.0.AND.MSTJ(12).LE.0) THEN | |
35161 | KT3L=1 | |
35162 | KT3U=6 | |
35163 | ELSEIF(KTAB2.EQ.0.AND.KTAB1.GE.7.AND.MSTJ(12).LE.1) THEN | |
35164 | KT3L=1 | |
35165 | KT3U=6 | |
35166 | ELSEIF(KTAB2.EQ.0) THEN | |
35167 | KT3L=1 | |
35168 | KT3U=22 | |
35169 | ELSE | |
35170 | KT3L=KTAB2 | |
35171 | KT3U=KTAB2 | |
35172 | ENDIF | |
35173 | RFL=0D0 | |
35174 | DO 160 KTS=0,2 | |
35175 | DO 150 KT3=KT3L,KT3U | |
35176 | RFL=RFL+PARF(120+80*KTAB1+25*KTS+KT3) | |
35177 | 150 CONTINUE | |
35178 | 160 CONTINUE | |
35179 | RFL=PYR(0)*RFL | |
35180 | DO 180 KTS=0,2 | |
35181 | KTABS=KTS | |
35182 | DO 170 KT3=KT3L,KT3U | |
35183 | KTAB3=KT3 | |
35184 | RFL=RFL-PARF(120+80*KTAB1+25*KTS+KT3) | |
35185 | IF(RFL.LE.0D0) GOTO 190 | |
35186 | 170 CONTINUE | |
35187 | 180 CONTINUE | |
35188 | 190 CONTINUE | |
35189 | ||
35190 | C...Reconstruct flavour of produced quark/diquark. | |
35191 | IF(KTAB3.LE.6) THEN | |
35192 | KFL3A=KTAB3 | |
35193 | KFL3B=0 | |
35194 | KFL3=ISIGN(KFL3A,KFL1*(2*KTAB1-13)) | |
35195 | ELSE | |
35196 | KFL3A=1 | |
35197 | IF(KTAB3.GE.8) KFL3A=2 | |
35198 | IF(KTAB3.GE.11) KFL3A=3 | |
35199 | IF(KTAB3.GE.16) KFL3A=4 | |
35200 | KFL3B=(KTAB3-6-KFL3A*(KFL3A-2))/2 | |
35201 | KFL3=1000*KFL3A+100*KFL3B+1 | |
35202 | IF(KFL3A.EQ.KFL3B.OR.KTAB3.NE.6+KFL3A*(KFL3A-2)+2*KFL3B) KFL3= | |
35203 | & KFL3+2 | |
35204 | KFL3=ISIGN(KFL3,KFL1*(13-2*KTAB1)) | |
35205 | ENDIF | |
35206 | ||
35207 | C...Reconstruct meson code. | |
35208 | IF(KFL3A.EQ.KFL1A.AND.KFL3B.EQ.KFL1B.AND.(KFL3A.LE.3.OR. | |
35209 | &KFL3B.NE.0)) THEN | |
35210 | RFL=PYR(0)*(PARF(143+80*KTAB1+25*KTABS)+PARF(144+80*KTAB1+ | |
35211 | & 25*KTABS)+PARF(145+80*KTAB1+25*KTABS)) | |
35212 | KF=110+2*KTABS+1 | |
35213 | IF(RFL.GT.PARF(143+80*KTAB1+25*KTABS)) KF=220+2*KTABS+1 | |
35214 | IF(RFL.GT.PARF(143+80*KTAB1+25*KTABS)+PARF(144+80*KTAB1+ | |
35215 | & 25*KTABS)) KF=330+2*KTABS+1 | |
35216 | ELSEIF(KTAB1.LE.6.AND.KTAB3.LE.6) THEN | |
35217 | KFLA=MAX(KTAB1,KTAB3) | |
35218 | KFLB=MIN(KTAB1,KTAB3) | |
35219 | KFS=ISIGN(1,KFL1) | |
35220 | IF(KFLA.NE.KF1A) KFS=-KFS | |
35221 | KF=(100*KFLA+10*KFLB+2*KTABS+1)*KFS*(-1)**KFLA | |
35222 | ELSEIF(KTAB1.GE.7.AND.KTAB3.GE.7) THEN | |
35223 | KFS=ISIGN(1,KFL1) | |
35224 | IF(KFL1A.EQ.KFL3A) THEN | |
35225 | KFLA=MAX(KFL1B,KFL3B) | |
35226 | KFLB=MIN(KFL1B,KFL3B) | |
35227 | IF(KFLA.NE.KFL1B) KFS=-KFS | |
35228 | ELSEIF(KFL1A.EQ.KFL3B) THEN | |
35229 | KFLA=KFL3A | |
35230 | KFLB=KFL1B | |
35231 | KFS=-KFS | |
35232 | ELSEIF(KFL1B.EQ.KFL3A) THEN | |
35233 | KFLA=KFL1A | |
35234 | KFLB=KFL3B | |
35235 | ELSEIF(KFL1B.EQ.KFL3B) THEN | |
35236 | KFLA=MAX(KFL1A,KFL3A) | |
35237 | KFLB=MIN(KFL1A,KFL3A) | |
35238 | IF(KFLA.NE.KFL1A) KFS=-KFS | |
35239 | ELSE | |
35240 | CALL PYERRM(2,'(PYKFDI:) no matching flavours for qq -> qq') | |
35241 | GOTO 100 | |
35242 | ENDIF | |
35243 | KF=(100*KFLA+10*KFLB+2*KTABS+1)*KFS*(-1)**KFLA | |
35244 | ||
35245 | C...Reconstruct baryon code. | |
35246 | ELSE | |
35247 | IF(KTAB1.GE.7) THEN | |
35248 | KFLA=KFL3A | |
35249 | KFLB=KFL1A | |
35250 | KFLC=KFL1B | |
35251 | ELSE | |
35252 | KFLA=KFL1A | |
35253 | KFLB=KFL3A | |
35254 | KFLC=KFL3B | |
35255 | ENDIF | |
35256 | KFLD=MAX(KFLA,KFLB,KFLC) | |
35257 | KFLF=MIN(KFLA,KFLB,KFLC) | |
35258 | KFLE=KFLA+KFLB+KFLC-KFLD-KFLF | |
35259 | IF(KTABS.EQ.0) KF=ISIGN(1000*KFLD+100*KFLF+10*KFLE+2,KFL1) | |
35260 | IF(KTABS.GE.1) KF=ISIGN(1000*KFLD+100*KFLE+10*KFLF+2*KTABS,KFL1) | |
35261 | ENDIF | |
35262 | ||
35263 | C...Check that constructed flavour code is an allowed one. | |
35264 | IF(KFL2.NE.0) KFL3=0 | |
35265 | KC=PYCOMP(KF) | |
35266 | IF(KC.EQ.0) THEN | |
35267 | CALL PYERRM(2,'(PYKFDI:) user-defined flavour probabilities '// | |
35268 | & 'failed') | |
35269 | GOTO 100 | |
35270 | ENDIF | |
35271 | ||
35272 | RETURN | |
35273 | END | |
35274 | ||
35275 | C********************************************************************* | |
35276 | ||
35277 | C...PYNMES | |
35278 | C...Generates number of popcorn mesons and stores some relevant | |
35279 | C...parameters. | |
35280 | ||
35281 | SUBROUTINE PYNMES(KFDIQ) | |
35282 | ||
35283 | C...Double precision and integer declarations. | |
35284 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
35285 | INTEGER PYK,PYCHGE,PYCOMP | |
35286 | C...Commonblocks. | |
35287 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
35288 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
35289 | SAVE /PYDAT1/,/PYDAT2/ | |
35290 | ||
35291 | MSTU(121)=0 | |
35292 | IF(MSTJ(12).LT.2) RETURN | |
35293 | ||
35294 | C..Old version: Get 1 or 0 popcorn mesons | |
35295 | IF(MSTJ(12).LT.5)THEN | |
35296 | POPWT=PARF(131) | |
35297 | IF(KFDIQ.NE.0) THEN | |
35298 | KFDIQA=IABS(KFDIQ) | |
35299 | KFA=MOD(KFDIQA/1000,10) | |
35300 | KFB=MOD(KFDIQA/100,10) | |
35301 | KFS=MOD(KFDIQA,10) | |
35302 | POPWT=PARF(132) | |
35303 | IF(KFA.EQ.3) POPWT=PARF(133) | |
35304 | IF(KFB.EQ.3) POPWT=PARF(134) | |
35305 | IF(KFS.EQ.1) POPWT=POPWT*SQRT(PARJ(4)) | |
35306 | ENDIF | |
35307 | MSTU(121)=INT(POPWT/(1D0+POPWT)+PYR(0)) | |
35308 | RETURN | |
35309 | ENDIF | |
35310 | ||
35311 | C..New version: Store popcorn- or rank 0 diquark parameters | |
35312 | MSTU(122)=170 | |
35313 | PARF(193)=PARJ(8) | |
35314 | PARF(194)=PARF(139) | |
35315 | IF(KFDIQ.NE.0) THEN | |
35316 | MSTU(122)=180 | |
35317 | PARF(193)=PARJ(10) | |
35318 | PARF(194)=PARF(140) | |
35319 | ENDIF | |
35320 | IF(PARF(194).LT.1D-5.OR.PARF(194).GT.1D0-1D-5) THEN | |
35321 | IF(PARF(194).GT.1D0-1D-5) CALL PYERRM(9, | |
35322 | & '(PYNMES:) Neglecting too large popcorn possibility') | |
35323 | RETURN | |
35324 | ENDIF | |
35325 | ||
35326 | C..New version: Get number of popcorn mesons | |
35327 | 100 RTST=PYR(0) | |
35328 | MSTU(121)=-1 | |
35329 | 110 MSTU(121)=MSTU(121)+1 | |
35330 | RTST=RTST/PARF(194) | |
35331 | IF(RTST.LT.1D0) GOTO 110 | |
35332 | IF(KFDIQ.EQ.0.AND.PYR(0)*(2D0+PARF(135)).GT. | |
35333 | & (2D0+PARF(135)*PARF(138)**MSTU(121))) GOTO 100 | |
35334 | RETURN | |
35335 | END | |
35336 | ||
35337 | C********************************************************************* | |
35338 | ||
35339 | C...PYKFIN | |
35340 | C...Precalculates a set of diquark and popcorn weights. | |
35341 | C.. (Results stored in order SU0,US0,SS1,UU1,SU1,US1,UD1) | |
35342 | ||
35343 | SUBROUTINE PYKFIN | |
35344 | ||
35345 | C...Double precision and integer declarations. | |
35346 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
35347 | INTEGER PYK,PYCHGE,PYCOMP | |
35348 | C...Commonblocks. | |
35349 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
35350 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
35351 | SAVE /PYDAT1/,/PYDAT2/ | |
35352 | ||
35353 | DIMENSION SU6(12),SU6M(7) | |
35354 | ||
35355 | MSTU(123)=1 | |
35356 | C..Curtain tunneling factor T(D,q)/T(ud0,u). | |
35357 | IF(MSTJ(12).GE.5) THEN | |
35358 | PMUD0=PYMASS(2101) | |
35359 | PMUD1=PYMASS(2103)-PMUD0 | |
35360 | PMUS0=PYMASS(3201)-PMUD0 | |
35361 | PMUS1=PYMASS(3203)-PMUS0-PMUD0 | |
35362 | PMSS1=PYMASS(3303)-PMUS0-PMUD0 | |
35363 | PARF(151)=EXP(-(PARJ(9)+PARJ(8))*PMUS0-PARJ(9)*PARF(191)) | |
35364 | PARF(152)=EXP(-PARJ(8)*PMUS0) | |
35365 | PARF(153)=EXP(-(PARJ(9)+PARJ(8))*PMSS1)*PARF(151) | |
35366 | PARF(154)=EXP(-PARJ(8)*PMUD1) | |
35367 | PARF(155)=EXP(-(PARJ(9)+PARJ(8))*PMUS1)*PARF(151) | |
35368 | PARF(156)=EXP(-PARJ(8)*PMUS1)*PARF(152) | |
35369 | PARF(157)=PARF(154) | |
35370 | ELSE | |
35371 | PAR2M=SQRT(PARJ(2)) | |
35372 | PAR3M=SQRT(PARJ(3)) | |
35373 | PAR4M=SQRT(PARJ(4)) | |
35374 | PARF(151)=PAR2M*PAR3M | |
35375 | PARF(152)=PAR3M | |
35376 | PARF(153)=PAR2M*PARJ(3)*PAR4M | |
35377 | PARF(154)=PAR4M | |
35378 | PARF(155)=PAR4M*PARF(151) | |
35379 | PARF(156)=PAR4M*PARF(152) | |
35380 | PARF(157)=PAR4M | |
35381 | ENDIF | |
35382 | ||
35383 | C.. Total tunneling factor tau(D,q)=T*vertex*spin. | |
35384 | PARF(161)=PARF(151) | |
35385 | PARF(162)=PARJ(2)*PARF(152) | |
35386 | PARF(163)=PARJ(2)*6D0*PARF(153) | |
35387 | PARF(164)=6D0*PARF(154) | |
35388 | PARF(165)=3D0*PARF(155) | |
35389 | PARF(166)=PARJ(2)*3D0*PARF(156) | |
35390 | PARF(167)=3D0*PARF(157) | |
35391 | ||
35392 | DO 100 I=1,7 | |
35393 | PARF(150+I)=PARF(150+I)*PARF(160+I) | |
35394 | 100 CONTINUE | |
35395 | ||
35396 | C..Modified SU(6) factors. | |
35397 | PARF(146)=1D0 | |
35398 | IF(MSTJ(12).GE.5) PARF(146)=3D0*PARJ(18)/(2D0*PARJ(18)+1D0) | |
35399 | IF(PARJ(18).LT.1D0-1D-5.AND.MSTJ(12).LT.5) CALL PYERRM(9, | |
35400 | & '(PYKFIN:) PARJ(18)<1 combined with 0<MSTJ(12)<5 option') | |
35401 | DO 110 I=1,6 | |
35402 | SU6(I)=PARF(60+I) | |
35403 | SU6(6+I)=SU6(I)*4*PARF(146)/(3*PARF(146)+1) | |
35404 | 110 CONTINUE | |
35405 | SU6(8)=SU6(2)*4/(3*PARF(146)+1) | |
35406 | SU6(6)=SU6(6)*(3+PARF(146))/(3*PARF(146)+1) | |
35407 | DO 120 I=1,6 | |
35408 | SU6(I)=SU6(I)+PARJ(18)*PARF(70+I) | |
35409 | SU6(6+I)=SU6(6+I)+PARJ(18)*PARF(70+I) | |
35410 | 120 CONTINUE | |
35411 | ||
35412 | C..Total diquark quark*SU(6). | |
35413 | PUD0=(2D0*SU6(1)+PARJ(2)*SU6(8)) | |
35414 | PARF(171)=(SU6(7)+SU6(2)+PARJ(2)*SU6(1))/PUD0 | |
35415 | PARF(172)=PARF(171) | |
35416 | PARF(173)=(2D0*SU6(4)+PARJ(2)*SU6(3))/PUD0 | |
35417 | PARF(174)=(SU6(3)+SU6(4)+PARJ(2)*SU6(10))/PUD0 | |
35418 | PARF(175)=(SU6(11)+SU6(6)+PARJ(2)*SU6(5))/PUD0 | |
35419 | PARF(176)=PARF(175) | |
35420 | PARF(177)=(2D0*SU6(5)+PARJ(2)*SU6(12))/PUD0 | |
35421 | ||
35422 | C..SU(6)max q q' s,c,b | |
35423 | SU6MUD =MAX(SU6(1) , SU6(8) ) | |
35424 | SU6M(7)=MAX(SU6(5) , SU6(12)) | |
35425 | SU6M(1)=MAX(SU6(7) ,SU6(2),SU6MUD ) | |
35426 | SU6M(4)=MAX(SU6(3) ,SU6(4),SU6(10)) | |
35427 | SU6M(5)=MAX(SU6(11),SU6(6),SU6M(7)) | |
35428 | SU6M(2)=SU6M(1) | |
35429 | SU6M(3)=SU6M(4) | |
35430 | SU6M(6)=SU6M(5) | |
35431 | ||
35432 | IF(MSTJ(12).GE.5)THEN | |
35433 | C..New version: tau for rank 0 diquark. | |
35434 | PARF(181)=EXP(-PARJ(10)*PMUS0) | |
35435 | PARF(182)=PARJ(2)*PARF(181) | |
35436 | PARF(183)=6D0*PARJ(2)*EXP(-PARJ(10)*PMSS1)*PARF(181) | |
35437 | PARF(184)=3D0*EXP(-PARJ(10)*PMUD1) | |
35438 | PARF(185)=3D0*EXP(-PARJ(10)*PMUS1)*PARF(181) | |
35439 | PARF(186)=PARJ(2)*PARF(185) | |
35440 | PARF(187)=2D0*PARF(184) | |
35441 | ||
35442 | C..New version: s/u curtain ratios. | |
35443 | WU=1D0+PARF(167)+PARF(162)+PARF(166)+PARF(164) | |
35444 | PARF(135)=(2D0*(PARF(161)+PARF(165))+PARF(163))/WU | |
35445 | WU=1D0+PARF(187)+PARF(182)+PARF(186)+PARF(184) | |
35446 | PARF(136)=(2D0*(PARF(181)+PARF(185))+PARF(183))/WU | |
35447 | PARF(137)=(PARF(181)+PARF(185))* | |
35448 | & (2D0+PARF(183)/(2D0*PARF(185)))/WU | |
35449 | ELSE | |
35450 | C..Old version: Shuffle PARJ(7) into tau | |
35451 | PARF(162)=PARF(162)*PARJ(7) | |
35452 | PARF(163)=PARF(163)*PARJ(7) | |
35453 | PARF(166)=PARF(166)*PARJ(7) | |
35454 | ||
35455 | C..Old version: s/u curtain ratios. | |
35456 | WU=1D0+PARF(167)+PARF(162)+PARF(166)+PARF(164) | |
35457 | PARF(135)=(2D0*(PARF(161)+PARF(165))+PARF(163))/WU | |
35458 | PARF(136)=PARF(135)*PARJ(6)*PARF(161)/PARF(162) | |
35459 | PARF(137)=(1D0+PARF(167))*(2D0+PARF(162))/WU | |
35460 | ENDIF | |
35461 | ||
35462 | C..Combine SU(6), SU(6)max, tau and T into proper products | |
35463 | DO 140 I=1,7 | |
35464 | PARF(180+I)=PARF(180+I)*PARF(170+I) | |
35465 | PARF(170+I)=PARF(170+I)*PARF(160+I) | |
35466 | PARF(160+I)=PARF(160+I)*SU6M(I)/SU6MUD | |
35467 | PARF(150+I)=PARF(150+I)*SU6M(I)/SU6MUD | |
35468 | 140 CONTINUE | |
35469 | ||
35470 | C..Store SU(6)max, in order UD0,UD1,US0,US1,QQ1 | |
35471 | PARF(141)=SU6MUD | |
35472 | PARF(142)=SU6M(7) | |
35473 | PARF(143)=SU6M(1) | |
35474 | PARF(144)=SU6M(5) | |
35475 | PARF(145)=SU6M(3) | |
35476 | ||
35477 | IF(MSTJ(12).LT.5)THEN | |
35478 | C.. Old version: Resulting popcorn weights. | |
35479 | PARF(138)=PARJ(6) | |
35480 | WS=PARF(135)*PARF(138) | |
35481 | WQ=WU*PARJ(5)/3D0 | |
35482 | PARF(132)=WQ*PARF(167)/PARF(157) | |
35483 | PARF(133)=WQ*(PARF(166)/PARF(156)+WS*PARF(165)/PARF(155))/2D0 | |
35484 | PARF(134)=WQ*WS*PARF(163)/PARF(153) | |
35485 | PARF(131)=WQ*((1D0+PARF(167))*(1D0+PARF(162)+WS*PARF(161))+ | |
35486 | & PARF(164)+WS*PARF(163)/2D0)/ | |
35487 | & ((1D0+PARF(157))*(1D0+2D0*PARF(152))+PARF(154)+PARF(153)/2D0) | |
35488 | ELSE | |
35489 | C..New version: Store weights for popcorn mesons, | |
35490 | C..get prel. popcorn weights. | |
35491 | DO 150 IPOS=201,1400 | |
35492 | PARF(IPOS)=0D0 | |
35493 | 150 CONTINUE | |
35494 | DO 160 I=138,140 | |
35495 | PARF(I)=0D0 | |
35496 | 160 CONTINUE | |
35497 | IPOS=200 | |
35498 | PARF(193)=PARJ(8) | |
35499 | DO 240 MR=170,180,10 | |
35500 | IF(MR.EQ.180) PARF(193)=PARJ(10) | |
35501 | SQWT=2D0*(PARF(MR+2)+PARF(MR+6))/(1D0+PARF(MR+7)+PARF(MR+4)) | |
35502 | QQWT=PARF(MR+4)/(1D0+PARF(MR+7)+PARF(MR+4)) | |
35503 | DO 230 NMES=0,1 | |
35504 | IF(NMES.EQ.1) SQWT=PARJ(2) | |
35505 | DO 220 KFQPOP=1,4 | |
35506 | IF(MR.EQ.170.AND.KFQPOP.GT.3) GOTO 220 | |
35507 | IF(NMES.EQ.0.AND.KFQPOP.GE.3)THEN | |
35508 | SQWT=PARF(MR+3)/(PARF(MR+1)+PARF(MR+5)) | |
35509 | QQWT=0.5D0 | |
35510 | IF(MR.EQ.170) PARF(193)=PARJ(8)+PARJ(9) | |
35511 | IF(KFQPOP.EQ.4) SQWT=SQWT*(1D0/PARF(185)+1D0)/2D0 | |
35512 | ENDIF | |
35513 | DO 210 KFQOLD =1,5 | |
35514 | IF(MR.EQ.170.AND.KFQOLD.GT.3) GOTO 210 | |
35515 | IF(MR*NMES.EQ.170.AND.KFQPOP.EQ.1) GOTO 210 | |
35516 | IF(MR*NMES.EQ.180.AND.KFQPOP.NE.1) GOTO 210 | |
35517 | WTTOT=0D0 | |
35518 | WTFAIL=0D0 | |
35519 | DO 190 KMUL=0,5 | |
35520 | PJWT=PARJ(12+KMUL) | |
35521 | IF(KMUL.EQ.0) PJWT=1D0-PARJ(14) | |
35522 | IF(KMUL.EQ.1) PJWT=1D0-PARJ(15)-PARJ(16)-PARJ(17) | |
35523 | IF(PJWT.LE.0D0) GOTO 190 | |
35524 | IF(PJWT.GT.1D0) PJWT=1D0 | |
35525 | IMES=5*KMUL | |
35526 | IMIX=2*KFQOLD+10*KMUL | |
35527 | KFJ=2*KMUL+1 | |
35528 | IF(KMUL.EQ.2) KFJ=10003 | |
35529 | IF(KMUL.EQ.3) KFJ=10001 | |
35530 | IF(KMUL.EQ.4) KFJ=20003 | |
35531 | IF(KMUL.EQ.5) KFJ=5 | |
35532 | DO 180 KFQVER =1,3 | |
35533 | KFLA=MAX(KFQOLD,KFQVER) | |
35534 | KFLB=MIN(KFQOLD,KFQVER) | |
35535 | SWT=PARJ(11+KFLA/3+KFLA/4) | |
35536 | IF(KMUL.EQ.0.OR.KMUL.EQ.2) SWT=1D0-SWT | |
35537 | SWT=SWT*PJWT | |
35538 | QWT=SQWT/(2D0+SQWT) | |
35539 | IF(KFQVER.LT.3)THEN | |
35540 | IF(KFQVER.EQ.KFQPOP) QWT=(1D0-QWT)*QQWT | |
35541 | IF(KFQVER.NE.KFQPOP) QWT=(1D0-QWT)*(1D0-QQWT) | |
35542 | ENDIF | |
35543 | IF(KFQVER.NE.KFQOLD)THEN | |
35544 | IMES=IMES+1 | |
35545 | KFM=100*KFLA+10*KFLB+KFJ | |
35546 | PMM=PMAS(PYCOMP(KFM),1)-PMAS(PYCOMP(KFM),3) | |
35547 | PARF(IPOS+IMES)=QWT*SWT*EXP(-PARF(193)*PMM) | |
35548 | WTTOT=WTTOT+PARF(IPOS+IMES) | |
35549 | ELSE | |
35550 | DO 170 ID=3,5 | |
35551 | IF(ID.EQ.3) DWT=1D0-PARF(IMIX-1) | |
35552 | IF(ID.EQ.4) DWT=PARF(IMIX-1)-PARF(IMIX) | |
35553 | IF(ID.EQ.5) DWT=PARF(IMIX) | |
35554 | KFM=110*(ID-2)+KFJ | |
35555 | PMM=PMAS(PYCOMP(KFM),1)-PMAS(PYCOMP(KFM),3) | |
35556 | PARF(IPOS+5*KMUL+ID)=QWT*SWT*DWT*EXP(-PARF(193)*PMM) | |
35557 | IF(KMUL.EQ.0.AND.ID.GT.3) THEN | |
35558 | WTFAIL=WTFAIL+QWT*SWT*DWT*(1D0-PARJ(21+ID)) | |
35559 | PARF(IPOS+5*KMUL+ID)= | |
35560 | & PARF(IPOS+5*KMUL+ID)*PARJ(21+ID) | |
35561 | ENDIF | |
35562 | WTTOT=WTTOT+PARF(IPOS+5*KMUL+ID) | |
35563 | 170 CONTINUE | |
35564 | ENDIF | |
35565 | 180 CONTINUE | |
35566 | 190 CONTINUE | |
35567 | DO 200 IMES=1,30 | |
35568 | PARF(IPOS+IMES)=PARF(IPOS+IMES)/(1D0-WTFAIL) | |
35569 | 200 CONTINUE | |
35570 | IF(MR.EQ.180) PARF(140)= | |
35571 | & MAX(PARF(140),WTTOT/(1D0-WTFAIL)) | |
35572 | IF(MR.EQ.170) PARF(139-KFQPOP/3)= | |
35573 | & MAX(PARF(139-KFQPOP/3),WTTOT/(1D0-WTFAIL)) | |
35574 | IPOS=IPOS+30 | |
35575 | 210 CONTINUE | |
35576 | 220 CONTINUE | |
35577 | 230 CONTINUE | |
35578 | 240 CONTINUE | |
35579 | IF(PARF(139).GT.1D-10) PARF(138)=PARF(138)/PARF(139) | |
35580 | MSTU(121)=0 | |
35581 | ||
35582 | PARF(186)=PARF(186)/PARF(182) | |
35583 | PARF(185)=PARF(185)/PARF(181) | |
35584 | ENDIF | |
35585 | ||
35586 | C..Recombine diquark weights to flavour and spin ratios | |
35587 | DO 250 I=150,170,10 | |
35588 | WSWQ=(2D0*(PARF(I+1)+PARF(I+5))+PARF(I+3))/ | |
35589 | & (1D0+PARF(I+7)+PARF(I+4)+PARF(I+2)+PARF(I+6)) | |
35590 | WSSWSQ=PARF(I+3)/(PARF(I+1)+PARF(I+5)) | |
35591 | WQSWQQ=2D0*(PARF(I+2)+PARF(I+6))/(1D0+PARF(I+7)+PARF(I+4)) | |
35592 | WUUWQQ=PARF(I+4)/(1D0+PARF(I+7)+PARF(I+4)) | |
35593 | PARF(I+5)=PARF(I+5)/PARF(I+1) | |
35594 | PARF(I+6)=PARF(I+6)/PARF(I+2) | |
35595 | PARF(I+1)=WSWQ | |
35596 | PARF(I+2)=WQSWQQ | |
35597 | PARF(I+3)=WSSWSQ | |
35598 | PARF(I+4)=WUUWQQ | |
35599 | 250 CONTINUE | |
35600 | RETURN | |
35601 | END | |
35602 | ||
35603 | C********************************************************************* | |
35604 | ||
35605 | C...PYPTDI | |
35606 | C...Generates transverse momentum according to a Gaussian. | |
35607 | ||
35608 | SUBROUTINE PYPTDI(KFL,PX,PY) | |
35609 | ||
35610 | C...Double precision and integer declarations. | |
35611 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
35612 | INTEGER PYK,PYCHGE,PYCOMP | |
35613 | C...Commonblocks. | |
35614 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
35615 | SAVE /PYDAT1/ | |
35616 | ||
35617 | C...Generate p_T and azimuthal angle, gives p_x and p_y. | |
35618 | KFLA=IABS(KFL) | |
35619 | PT=PARJ(21)*SQRT(-LOG(MAX(1D-10,PYR(0)))) | |
35620 | IF(PARJ(23).GT.PYR(0)) PT=PARJ(24)*PT | |
35621 | IF(MSTJ(91).EQ.1) PT=PARJ(22)*PT | |
35622 | IF(KFLA.EQ.0.AND.MSTJ(13).LE.0) PT=0D0 | |
35623 | PHI=PARU(2)*PYR(0) | |
35624 | PX=PT*COS(PHI) | |
35625 | PY=PT*SIN(PHI) | |
35626 | ||
35627 | RETURN | |
35628 | END | |
35629 | ||
35630 | C********************************************************************* | |
35631 | ||
35632 | C...PYZDIS | |
35633 | C...Generates the longitudinal splitting variable z. | |
35634 | ||
35635 | SUBROUTINE PYZDIS(KFL1,KFL2,PR,Z) | |
35636 | ||
35637 | C...Double precision and integer declarations. | |
35638 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
35639 | INTEGER PYK,PYCHGE,PYCOMP | |
35640 | C...Commonblocks. | |
35641 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
35642 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
35643 | SAVE /PYDAT1/,/PYDAT2/ | |
35644 | ||
35645 | C...Check if heavy flavour fragmentation. | |
35646 | KFLA=IABS(KFL1) | |
35647 | KFLB=IABS(KFL2) | |
35648 | KFLH=KFLA | |
35649 | IF(KFLA.GE.10) KFLH=MOD(KFLA/1000,10) | |
35650 | ||
35651 | C...Lund symmetric scaling function: determine parameters of shape. | |
35652 | IF(MSTJ(11).EQ.1.OR.(MSTJ(11).EQ.3.AND.KFLH.LE.3).OR. | |
35653 | &MSTJ(11).GE.4) THEN | |
35654 | FA=PARJ(41) | |
35655 | IF(MSTJ(91).EQ.1) FA=PARJ(43) | |
35656 | IF(KFLB.GE.10) FA=FA+PARJ(45) | |
35657 | FBB=PARJ(42) | |
35658 | IF(MSTJ(91).EQ.1) FBB=PARJ(44) | |
35659 | FB=FBB*PR | |
35660 | FC=1D0 | |
35661 | IF(KFLA.GE.10) FC=FC-PARJ(45) | |
35662 | IF(KFLB.GE.10) FC=FC+PARJ(45) | |
35663 | IF(MSTJ(11).GE.4.AND.KFLH.GE.4.AND.KFLH.LE.5) THEN | |
35664 | FRED=PARJ(46) | |
35665 | IF(MSTJ(11).EQ.5.AND.KFLH.EQ.5) FRED=PARJ(47) | |
35666 | FC=FC+FRED*FBB*PARF(100+KFLH)**2 | |
35667 | ELSEIF(MSTJ(11).GE.4.AND.KFLH.GE.6.AND.KFLH.LE.8) THEN | |
35668 | FRED=PARJ(46) | |
35669 | IF(MSTJ(11).EQ.5) FRED=PARJ(48) | |
35670 | FC=FC+FRED*FBB*PMAS(KFLH,1)**2 | |
35671 | ENDIF | |
35672 | MC=1 | |
35673 | IF(ABS(FC-1D0).GT.0.01D0) MC=2 | |
35674 | ||
35675 | C...Determine position of maximum. Special cases for a = 0 or a = c. | |
35676 | IF(FA.LT.0.02D0) THEN | |
35677 | MA=1 | |
35678 | ZMAX=1D0 | |
35679 | IF(FC.GT.FB) ZMAX=FB/FC | |
35680 | ELSEIF(ABS(FC-FA).LT.0.01D0) THEN | |
35681 | MA=2 | |
35682 | ZMAX=FB/(FB+FC) | |
35683 | ELSE | |
35684 | MA=3 | |
35685 | ZMAX=0.5D0*(FB+FC-SQRT((FB-FC)**2+4D0*FA*FB))/(FC-FA) | |
35686 | IF(ZMAX.GT.0.9999D0.AND.FB.GT.100D0) ZMAX=MIN(ZMAX,1D0-FA/FB) | |
35687 | ENDIF | |
35688 | ||
35689 | C...Subdivide z range if distribution very peaked near endpoint. | |
35690 | MMAX=2 | |
35691 | IF(ZMAX.LT.0.1D0) THEN | |
35692 | MMAX=1 | |
35693 | ZDIV=2.75D0*ZMAX | |
35694 | IF(MC.EQ.1) THEN | |
35695 | FINT=1D0-LOG(ZDIV) | |
35696 | ELSE | |
35697 | ZDIVC=ZDIV**(1D0-FC) | |
35698 | FINT=1D0+(1D0-1D0/ZDIVC)/(FC-1D0) | |
35699 | ENDIF | |
35700 | ELSEIF(ZMAX.GT.0.85D0.AND.FB.GT.1D0) THEN | |
35701 | MMAX=3 | |
35702 | FSCB=SQRT(4D0+(FC/FB)**2) | |
35703 | ZDIV=FSCB-1D0/ZMAX-(FC/FB)*LOG(ZMAX*0.5D0*(FSCB+FC/FB)) | |
35704 | IF(MA.GE.2) ZDIV=ZDIV+(FA/FB)*LOG(1D0-ZMAX) | |
35705 | ZDIV=MIN(ZMAX,MAX(0D0,ZDIV)) | |
35706 | FINT=1D0+FB*(1D0-ZDIV) | |
35707 | ENDIF | |
35708 | ||
35709 | C...Choice of z, preweighted for peaks at low or high z. | |
35710 | 100 Z=PYR(0) | |
35711 | FPRE=1D0 | |
35712 | IF(MMAX.EQ.1) THEN | |
35713 | IF(FINT*PYR(0).LE.1D0) THEN | |
35714 | Z=ZDIV*Z | |
35715 | ELSEIF(MC.EQ.1) THEN | |
35716 | Z=ZDIV**Z | |
35717 | FPRE=ZDIV/Z | |
35718 | ELSE | |
35719 | Z=(ZDIVC+Z*(1D0-ZDIVC))**(1D0/(1D0-FC)) | |
35720 | FPRE=(ZDIV/Z)**FC | |
35721 | ENDIF | |
35722 | ELSEIF(MMAX.EQ.3) THEN | |
35723 | IF(FINT*PYR(0).LE.1D0) THEN | |
35724 | Z=ZDIV+LOG(Z)/FB | |
35725 | FPRE=EXP(FB*(Z-ZDIV)) | |
35726 | ELSE | |
35727 | Z=ZDIV+Z*(1D0-ZDIV) | |
35728 | ENDIF | |
35729 | ENDIF | |
35730 | ||
35731 | C...Weighting according to correct formula. | |
35732 | IF(Z.LE.0D0.OR.Z.GE.1D0) GOTO 100 | |
35733 | FEXP=FC*LOG(ZMAX/Z)+FB*(1D0/ZMAX-1D0/Z) | |
35734 | IF(MA.GE.2) FEXP=FEXP+FA*LOG((1D0-Z)/(1D0-ZMAX)) | |
35735 | FVAL=EXP(MAX(-50D0,MIN(50D0,FEXP))) | |
35736 | IF(FVAL.LT.PYR(0)*FPRE) GOTO 100 | |
35737 | ||
35738 | C...Generate z according to Field-Feynman, SLAC, (1-z)**c OR z**c. | |
35739 | ELSE | |
35740 | FC=PARJ(50+MAX(1,KFLH)) | |
35741 | IF(MSTJ(91).EQ.1) FC=PARJ(59) | |
35742 | 110 Z=PYR(0) | |
35743 | IF(FC.GE.0D0.AND.FC.LE.1D0) THEN | |
35744 | IF(FC.GT.PYR(0)) Z=1D0-Z**(1D0/3D0) | |
35745 | ELSEIF(FC.GT.-1.AND.FC.LT.0D0) THEN | |
35746 | IF(-4D0*FC*Z*(1D0-Z)**2.LT.PYR(0)*((1D0-Z)**2-FC*Z)**2) | |
35747 | & GOTO 110 | |
35748 | ELSE | |
35749 | IF(FC.GT.0D0) Z=1D0-Z**(1D0/FC) | |
35750 | IF(FC.LT.0D0) Z=Z**(-1D0/FC) | |
35751 | ENDIF | |
35752 | ENDIF | |
35753 | ||
35754 | RETURN | |
35755 | END | |
35756 | ||
35757 | C********************************************************************* | |
35758 | ||
35759 | C...PYSHOW | |
35760 | C...Generates timelike parton showers from given partons. | |
35761 | ||
35762 | SUBROUTINE PYSHOW(IP1,IP2,QMAX) | |
35763 | ||
35764 | C...Double precision and integer declarations. | |
35765 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
35766 | INTEGER PYK,PYCHGE,PYCOMP | |
35767 | C...Commonblocks. | |
35768 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
35769 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
35770 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
35771 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
35772 | C...Local arrays. | |
35773 | DIMENSION PMTH(5,50),PS(5),PMA(4),PMSD(4),IEP(4),IPA(4), | |
35774 | &KFLA(4),KFLD(4),KFL(4),ITRY(4),ISI(4),ISL(4),DP(4),DPT(5,4), | |
35775 | &KSH(0:40),KCII(2),NIIS(2),IIIS(2,2),THEIIS(2,2),PHIIIS(2,2), | |
35776 | &ISII(2) | |
35777 | ||
35778 | C...Initialization of cutoff masses etc. | |
35779 | IF(MSTJ(41).LE.0.OR.(MSTJ(41).EQ.1.AND.QMAX.LE.PARJ(82)).OR. | |
35780 | &QMAX.LE.MIN(PARJ(82),PARJ(83))) RETURN | |
35781 | DO 100 IFL=0,40 | |
35782 | KSH(IFL)=0 | |
35783 | 100 CONTINUE | |
35784 | KSH(21)=1 | |
35785 | PMTH(1,21)=PYMASS(21) | |
35786 | PMTH(2,21)=SQRT(PMTH(1,21)**2+0.25D0*PARJ(82)**2) | |
35787 | PMTH(3,21)=2D0*PMTH(2,21) | |
35788 | PMTH(4,21)=PMTH(3,21) | |
35789 | PMTH(5,21)=PMTH(3,21) | |
35790 | PMTH(1,22)=PYMASS(22) | |
35791 | PMTH(2,22)=SQRT(PMTH(1,22)**2+0.25D0*PARJ(83)**2) | |
35792 | PMTH(3,22)=2D0*PMTH(2,22) | |
35793 | PMTH(4,22)=PMTH(3,22) | |
35794 | PMTH(5,22)=PMTH(3,22) | |
35795 | PMQTH1=PARJ(82) | |
35796 | IF(MSTJ(41).GE.2) PMQTH1=MIN(PARJ(82),PARJ(83)) | |
35797 | PMQTH2=PMTH(2,21) | |
35798 | IF(MSTJ(41).GE.2) PMQTH2=MIN(PMTH(2,21),PMTH(2,22)) | |
35799 | DO 110 IFL=1,8 | |
35800 | KSH(IFL)=1 | |
35801 | PMTH(1,IFL)=PYMASS(IFL) | |
35802 | PMTH(2,IFL)=SQRT(PMTH(1,IFL)**2+0.25D0*PMQTH1**2) | |
35803 | PMTH(3,IFL)=PMTH(2,IFL)+PMQTH2 | |
35804 | PMTH(4,IFL)=SQRT(PMTH(1,IFL)**2+0.25D0*PARJ(82)**2)+PMTH(2,21) | |
35805 | PMTH(5,IFL)=SQRT(PMTH(1,IFL)**2+0.25D0*PARJ(83)**2)+PMTH(2,22) | |
35806 | 110 CONTINUE | |
35807 | DO 120 IFL=11,17,2 | |
35808 | IF(MSTJ(41).GE.2) KSH(IFL)=1 | |
35809 | PMTH(1,IFL)=PYMASS(IFL) | |
35810 | PMTH(2,IFL)=SQRT(PMTH(1,IFL)**2+0.25D0*PARJ(83)**2) | |
35811 | PMTH(3,IFL)=PMTH(2,IFL)+PMTH(2,22) | |
35812 | PMTH(4,IFL)=PMTH(3,IFL) | |
35813 | PMTH(5,IFL)=PMTH(3,IFL) | |
35814 | 120 CONTINUE | |
35815 | PT2MIN=MAX(0.5D0*PARJ(82),1.1D0*PARJ(81))**2 | |
35816 | ALAMS=PARJ(81)**2 | |
35817 | ALFM=LOG(PT2MIN/ALAMS) | |
35818 | ||
35819 | C...Store positions of shower initiating partons. | |
35820 | IF(IP1.GT.0.AND.IP1.LE.MIN(N,MSTU(4)-MSTU(32)).AND.IP2.EQ.0) THEN | |
35821 | NPA=1 | |
35822 | IPA(1)=IP1 | |
35823 | ELSEIF(MIN(IP1,IP2).GT.0.AND.MAX(IP1,IP2).LE.MIN(N,MSTU(4)- | |
35824 | & MSTU(32))) THEN | |
35825 | NPA=2 | |
35826 | IPA(1)=IP1 | |
35827 | IPA(2)=IP2 | |
35828 | ELSEIF(IP1.GT.0.AND.IP1.LE.MIN(N,MSTU(4)-MSTU(32)).AND.IP2.LT.0 | |
35829 | & .AND.IP2.GE.-3) THEN | |
35830 | NPA=IABS(IP2) | |
35831 | DO 130 I=1,NPA | |
35832 | IPA(I)=IP1+I-1 | |
35833 | 130 CONTINUE | |
35834 | ELSE | |
35835 | CALL PYERRM(12, | |
35836 | & '(PYSHOW:) failed to reconstruct showering system') | |
35837 | IF(MSTU(21).GE.1) RETURN | |
35838 | ENDIF | |
35839 | ||
35840 | C...Check on phase space available for emission. | |
35841 | IREJ=0 | |
35842 | DO 140 J=1,5 | |
35843 | PS(J)=0D0 | |
35844 | 140 CONTINUE | |
35845 | PM=0D0 | |
35846 | DO 160 I=1,NPA | |
35847 | KFLA(I)=IABS(K(IPA(I),2)) | |
35848 | PMA(I)=P(IPA(I),5) | |
35849 | C...Special cutoff masses for t, l, h with variable masses. | |
35850 | IFLA=KFLA(I) | |
35851 | IF(KFLA(I).GE.6.AND.KFLA(I).LE.8) THEN | |
35852 | IFLA=37+KFLA(I)+ISIGN(2,K(IPA(I),2)) | |
35853 | PMTH(1,IFLA)=PMA(I) | |
35854 | PMTH(2,IFLA)=SQRT(PMTH(1,IFLA)**2+0.25D0*PMQTH1**2) | |
35855 | PMTH(3,IFLA)=PMTH(2,IFLA)+PMQTH2 | |
35856 | PMTH(4,IFLA)=SQRT(PMTH(1,IFLA)**2+0.25D0*PARJ(82)**2)+ | |
35857 | & PMTH(2,21) | |
35858 | PMTH(5,IFLA)=SQRT(PMTH(1,IFLA)**2+0.25D0*PARJ(83)**2)+ | |
35859 | & PMTH(2,22) | |
35860 | ENDIF | |
35861 | IF(KFLA(I).LE.40) THEN | |
35862 | IF(KSH(KFLA(I)).EQ.1) PMA(I)=PMTH(3,IFLA) | |
35863 | ENDIF | |
35864 | PM=PM+PMA(I) | |
35865 | IF(KFLA(I).GT.40) THEN | |
35866 | IREJ=IREJ+1 | |
35867 | ELSE | |
35868 | IF(KSH(KFLA(I)).EQ.0.OR.PMA(I).GT.QMAX) IREJ=IREJ+1 | |
35869 | ENDIF | |
35870 | DO 150 J=1,4 | |
35871 | PS(J)=PS(J)+P(IPA(I),J) | |
35872 | 150 CONTINUE | |
35873 | 160 CONTINUE | |
35874 | IF(IREJ.EQ.NPA) RETURN | |
35875 | PS(5)=SQRT(MAX(0D0,PS(4)**2-PS(1)**2-PS(2)**2-PS(3)**2)) | |
35876 | IF(NPA.EQ.1) PS(5)=PS(4) | |
35877 | IF(PS(5).LE.PM+PMQTH1) RETURN | |
35878 | ||
35879 | C...Check if 3-jet matrix elements to be used. | |
35880 | M3JC=0 | |
35881 | IF(NPA.EQ.2.AND.MSTJ(47).GE.1) THEN | |
35882 | IF(KFLA(1).GE.1.AND.KFLA(1).LE.8.AND.KFLA(2).GE.1.AND. | |
35883 | & KFLA(2).LE.8) M3JC=1 | |
35884 | IF((KFLA(1).EQ.11.OR.KFLA(1).EQ.13.OR.KFLA(1).EQ.15.OR. | |
35885 | & KFLA(1).EQ.17).AND.KFLA(2).EQ.KFLA(1)) M3JC=1 | |
35886 | IF((KFLA(1).EQ.11.OR.KFLA(1).EQ.13.OR.KFLA(1).EQ.15.OR. | |
35887 | & KFLA(1).EQ.17).AND.KFLA(2).EQ.KFLA(1)+1) M3JC=1 | |
35888 | IF((KFLA(1).EQ.12.OR.KFLA(1).EQ.14.OR.KFLA(1).EQ.16.OR. | |
35889 | & KFLA(1).EQ.18).AND.KFLA(2).EQ.KFLA(1)-1) M3JC=1 | |
35890 | IF(MSTJ(47).EQ.2.OR.MSTJ(47).EQ.4) M3JC=1 | |
35891 | M3JCM=0 | |
35892 | IF(M3JC.EQ.1.AND.MSTJ(47).GE.3.AND.KFLA(1).EQ.KFLA(2)) THEN | |
35893 | M3JCM=1 | |
35894 | QME=(2D0*PMTH(1,KFLA(1))/PS(5))**2 | |
35895 | ENDIF | |
35896 | ENDIF | |
35897 | ||
35898 | C...Find if interference with initial state partons. | |
35899 | MIIS=0 | |
35900 | IF(MSTJ(50).GE.1.AND.MSTJ(50).LE.3.AND.NPA.EQ.2) MIIS=MSTJ(50) | |
35901 | IF(MIIS.NE.0) THEN | |
35902 | DO 180 I=1,2 | |
35903 | KCII(I)=0 | |
35904 | KCA=PYCOMP(KFLA(I)) | |
35905 | IF(KCA.NE.0) KCII(I)=KCHG(KCA,2)*ISIGN(1,K(IPA(I),2)) | |
35906 | NIIS(I)=0 | |
35907 | IF(KCII(I).NE.0) THEN | |
35908 | DO 170 J=1,2 | |
35909 | ICSI=MOD(K(IPA(I),3+J)/MSTU(5),MSTU(5)) | |
35910 | IF(ICSI.GT.0.AND.ICSI.NE.IPA(1).AND.ICSI.NE.IPA(2).AND. | |
35911 | & (KCII(I).EQ.(-1)**(J+1).OR.KCII(I).EQ.2)) THEN | |
35912 | NIIS(I)=NIIS(I)+1 | |
35913 | IIIS(I,NIIS(I))=ICSI | |
35914 | ENDIF | |
35915 | 170 CONTINUE | |
35916 | ENDIF | |
35917 | 180 CONTINUE | |
35918 | IF(NIIS(1)+NIIS(2).EQ.0) MIIS=0 | |
35919 | ENDIF | |
35920 | ||
35921 | C...Boost interfering initial partons to rest frame | |
35922 | C...and reconstruct their polar and azimuthal angles. | |
35923 | IF(MIIS.NE.0) THEN | |
35924 | DO 200 I=1,2 | |
35925 | DO 190 J=1,5 | |
35926 | K(N+I,J)=K(IPA(I),J) | |
35927 | P(N+I,J)=P(IPA(I),J) | |
35928 | V(N+I,J)=0D0 | |
35929 | 190 CONTINUE | |
35930 | 200 CONTINUE | |
35931 | DO 220 I=3,2+NIIS(1) | |
35932 | DO 210 J=1,5 | |
35933 | K(N+I,J)=K(IIIS(1,I-2),J) | |
35934 | P(N+I,J)=P(IIIS(1,I-2),J) | |
35935 | V(N+I,J)=0D0 | |
35936 | 210 CONTINUE | |
35937 | 220 CONTINUE | |
35938 | DO 240 I=3+NIIS(1),2+NIIS(1)+NIIS(2) | |
35939 | DO 230 J=1,5 | |
35940 | K(N+I,J)=K(IIIS(2,I-2-NIIS(1)),J) | |
35941 | P(N+I,J)=P(IIIS(2,I-2-NIIS(1)),J) | |
35942 | V(N+I,J)=0D0 | |
35943 | 230 CONTINUE | |
35944 | 240 CONTINUE | |
35945 | CALL PYROBO(N+1,N+2+NIIS(1)+NIIS(2),0D0,0D0,-PS(1)/PS(4), | |
35946 | & -PS(2)/PS(4),-PS(3)/PS(4)) | |
35947 | PHI=PYANGL(P(N+1,1),P(N+1,2)) | |
35948 | CALL PYROBO(N+1,N+2+NIIS(1)+NIIS(2),0D0,-PHI,0D0,0D0,0D0) | |
35949 | THE=PYANGL(P(N+1,3),P(N+1,1)) | |
35950 | CALL PYROBO(N+1,N+2+NIIS(1)+NIIS(2),-THE,0D0,0D0,0D0,0D0) | |
35951 | DO 250 I=3,2+NIIS(1) | |
35952 | THEIIS(1,I-2)=PYANGL(P(N+I,3),SQRT(P(N+I,1)**2+P(N+I,2)**2)) | |
35953 | PHIIIS(1,I-2)=PYANGL(P(N+I,1),P(N+I,2)) | |
35954 | 250 CONTINUE | |
35955 | DO 260 I=3+NIIS(1),2+NIIS(1)+NIIS(2) | |
35956 | THEIIS(2,I-2-NIIS(1))=PARU(1)-PYANGL(P(N+I,3), | |
35957 | & SQRT(P(N+I,1)**2+P(N+I,2)**2)) | |
35958 | PHIIIS(2,I-2-NIIS(1))=PYANGL(P(N+I,1),P(N+I,2)) | |
35959 | 260 CONTINUE | |
35960 | ENDIF | |
35961 | ||
35962 | C...Define imagined single initiator of shower for parton system. | |
35963 | NS=N | |
35964 | IF(N.GT.MSTU(4)-MSTU(32)-5) THEN | |
35965 | CALL PYERRM(11,'(PYSHOW:) no more memory left in PYJETS') | |
35966 | IF(MSTU(21).GE.1) RETURN | |
35967 | ENDIF | |
35968 | IF(NPA.GE.2) THEN | |
35969 | K(N+1,1)=11 | |
35970 | K(N+1,2)=21 | |
35971 | K(N+1,3)=0 | |
35972 | K(N+1,4)=0 | |
35973 | K(N+1,5)=0 | |
35974 | P(N+1,1)=0D0 | |
35975 | P(N+1,2)=0D0 | |
35976 | P(N+1,3)=0D0 | |
35977 | P(N+1,4)=PS(5) | |
35978 | P(N+1,5)=PS(5) | |
35979 | V(N+1,5)=PS(5)**2 | |
35980 | N=N+1 | |
35981 | ENDIF | |
35982 | ||
35983 | C...Loop over partons that may branch. | |
35984 | NEP=NPA | |
35985 | IM=NS | |
35986 | IF(NPA.EQ.1) IM=NS-1 | |
35987 | 270 IM=IM+1 | |
35988 | IF(N.GT.NS) THEN | |
35989 | IF(IM.GT.N) GOTO 510 | |
35990 | KFLM=IABS(K(IM,2)) | |
35991 | IF(KFLM.GT.40) GOTO 270 | |
35992 | IF(KSH(KFLM).EQ.0) GOTO 270 | |
35993 | IFLM=KFLM | |
35994 | IF(KFLM.GE.6.AND.KFLM.LE.8) IFLM=37+KFLM+ISIGN(2,K(IM,2)) | |
35995 | IF(P(IM,5).LT.PMTH(2,IFLM)) GOTO 270 | |
35996 | IGM=K(IM,3) | |
35997 | ELSE | |
35998 | IGM=-1 | |
35999 | ENDIF | |
36000 | IF(N+NEP.GT.MSTU(4)-MSTU(32)-5) THEN | |
36001 | CALL PYERRM(11,'(PYSHOW:) no more memory left in PYJETS') | |
36002 | IF(MSTU(21).GE.1) RETURN | |
36003 | ENDIF | |
36004 | ||
36005 | C...Position of aunt (sister to branching parton). | |
36006 | C...Origin and flavour of daughters. | |
36007 | IAU=0 | |
36008 | IF(IGM.GT.0) THEN | |
36009 | IF(K(IM-1,3).EQ.IGM) IAU=IM-1 | |
36010 | IF(N.GE.IM+1.AND.K(IM+1,3).EQ.IGM) IAU=IM+1 | |
36011 | ENDIF | |
36012 | IF(IGM.GE.0) THEN | |
36013 | K(IM,4)=N+1 | |
36014 | DO 280 I=1,NEP | |
36015 | K(N+I,3)=IM | |
36016 | 280 CONTINUE | |
36017 | ELSE | |
36018 | K(N+1,3)=IPA(1) | |
36019 | ENDIF | |
36020 | IF(IGM.LE.0) THEN | |
36021 | DO 290 I=1,NEP | |
36022 | K(N+I,2)=K(IPA(I),2) | |
36023 | 290 CONTINUE | |
36024 | ELSEIF(KFLM.NE.21) THEN | |
36025 | K(N+1,2)=K(IM,2) | |
36026 | K(N+2,2)=K(IM,5) | |
36027 | ELSEIF(K(IM,5).EQ.21) THEN | |
36028 | K(N+1,2)=21 | |
36029 | K(N+2,2)=21 | |
36030 | ELSE | |
36031 | K(N+1,2)=K(IM,5) | |
36032 | K(N+2,2)=-K(IM,5) | |
36033 | ENDIF | |
36034 | ||
36035 | C...Reset flags on daughers and tries made. | |
36036 | DO 300 IP=1,NEP | |
36037 | K(N+IP,1)=3 | |
36038 | K(N+IP,4)=0 | |
36039 | K(N+IP,5)=0 | |
36040 | KFLD(IP)=IABS(K(N+IP,2)) | |
36041 | IF(KCHG(PYCOMP(KFLD(IP)),2).EQ.0) K(N+IP,1)=1 | |
36042 | ITRY(IP)=0 | |
36043 | ISL(IP)=0 | |
36044 | ISI(IP)=0 | |
36045 | IF(KFLD(IP).LE.40) THEN | |
36046 | IF(KSH(KFLD(IP)).EQ.1) ISI(IP)=1 | |
36047 | ENDIF | |
36048 | 300 CONTINUE | |
36049 | ISLM=0 | |
36050 | ||
36051 | C...Maximum virtuality of daughters. | |
36052 | IF(IGM.LE.0) THEN | |
36053 | DO 310 I=1,NPA | |
36054 | IF(NPA.GE.3) P(N+I,4)=(PS(4)*P(IPA(I),4)-PS(1)*P(IPA(I),1)- | |
36055 | & PS(2)*P(IPA(I),2)-PS(3)*P(IPA(I),3))/PS(5) | |
36056 | P(N+I,5)=MIN(QMAX,PS(5)) | |
36057 | IF(NPA.GE.3) P(N+I,5)=MIN(P(N+I,5),P(N+I,4)) | |
36058 | IF(ISI(I).EQ.0) P(N+I,5)=P(IPA(I),5) | |
36059 | 310 CONTINUE | |
36060 | ELSE | |
36061 | IF(MSTJ(43).LE.2) PEM=V(IM,2) | |
36062 | IF(MSTJ(43).GE.3) PEM=P(IM,4) | |
36063 | P(N+1,5)=MIN(P(IM,5),V(IM,1)*PEM) | |
36064 | P(N+2,5)=MIN(P(IM,5),(1D0-V(IM,1))*PEM) | |
36065 | IF(K(N+2,2).EQ.22) P(N+2,5)=PMTH(1,22) | |
36066 | ENDIF | |
36067 | DO 320 I=1,NEP | |
36068 | PMSD(I)=P(N+I,5) | |
36069 | IF(ISI(I).EQ.1) THEN | |
36070 | IFLD=KFLD(I) | |
36071 | IF(KFLD(I).GE.6.AND.KFLD(I).LE.8) IFLD=37+KFLD(I)+ | |
36072 | & ISIGN(2,K(N+I,2)) | |
36073 | IF(P(N+I,5).LE.PMTH(3,IFLD)) P(N+I,5)=PMTH(1,IFLD) | |
36074 | ENDIF | |
36075 | V(N+I,5)=P(N+I,5)**2 | |
36076 | 320 CONTINUE | |
36077 | ||
36078 | C...Choose one of the daughters for evolution. | |
36079 | 330 INUM=0 | |
36080 | IF(NEP.EQ.1) INUM=1 | |
36081 | DO 340 I=1,NEP | |
36082 | IF(INUM.EQ.0.AND.ISL(I).EQ.1) INUM=I | |
36083 | 340 CONTINUE | |
36084 | DO 350 I=1,NEP | |
36085 | IF(INUM.EQ.0.AND.ITRY(I).EQ.0.AND.ISI(I).EQ.1) THEN | |
36086 | IFLD=KFLD(I) | |
36087 | IF(KFLD(I).GE.6.AND.KFLD(I).LE.8) IFLD=37+KFLD(I)+ | |
36088 | & ISIGN(2,K(N+I,2)) | |
36089 | IF(P(N+I,5).GE.PMTH(2,IFLD)) INUM=I | |
36090 | ENDIF | |
36091 | 350 CONTINUE | |
36092 | IF(INUM.EQ.0) THEN | |
36093 | RMAX=0D0 | |
36094 | DO 360 I=1,NEP | |
36095 | IF(ISI(I).EQ.1.AND.PMSD(I).GE.PMQTH2) THEN | |
36096 | RPM=P(N+I,5)/PMSD(I) | |
36097 | IFLD=KFLD(I) | |
36098 | IF(KFLD(I).GE.6.AND.KFLD(I).LE.8) IFLD=37+KFLD(I)+ | |
36099 | & ISIGN(2,K(N+I,2)) | |
36100 | IF(RPM.GT.RMAX.AND.P(N+I,5).GE.PMTH(2,IFLD)) THEN | |
36101 | RMAX=RPM | |
36102 | INUM=I | |
36103 | ENDIF | |
36104 | ENDIF | |
36105 | 360 CONTINUE | |
36106 | ENDIF | |
36107 | ||
36108 | C...Store information on choice of evolving daughter. | |
36109 | INUM=MAX(1,INUM) | |
36110 | IEP(1)=N+INUM | |
36111 | DO 370 I=2,NEP | |
36112 | IEP(I)=IEP(I-1)+1 | |
36113 | IF(IEP(I).GT.N+NEP) IEP(I)=N+1 | |
36114 | 370 CONTINUE | |
36115 | DO 380 I=1,NEP | |
36116 | KFL(I)=IABS(K(IEP(I),2)) | |
36117 | 380 CONTINUE | |
36118 | ITRY(INUM)=ITRY(INUM)+1 | |
36119 | IF(ITRY(INUM).GT.200) THEN | |
36120 | CALL PYERRM(14,'(PYSHOW:) caught in infinite loop') | |
36121 | IF(MSTU(21).GE.1) RETURN | |
36122 | ENDIF | |
36123 | Z=0.5D0 | |
36124 | IF(KFL(1).GT.40) GOTO 430 | |
36125 | IF(KSH(KFL(1)).EQ.0) GOTO 430 | |
36126 | IFL=KFL(1) | |
36127 | IF(KFL(1).GE.6.AND.KFL(1).LE.8) IFL=37+KFL(1)+ | |
36128 | &ISIGN(2,K(IEP(1),2)) | |
36129 | IF(P(IEP(1),5).LT.PMTH(2,IFL)) GOTO 430 | |
36130 | ||
36131 | C...Select side for interference with initial state partons. | |
36132 | IF(MIIS.GE.1.AND.IEP(1).LE.NS+3) THEN | |
36133 | III=IEP(1)-NS-1 | |
36134 | ISII(III)=0 | |
36135 | IF(IABS(KCII(III)).EQ.1.AND.NIIS(III).EQ.1) THEN | |
36136 | ISII(III)=1 | |
36137 | ELSEIF(KCII(III).EQ.2.AND.NIIS(III).EQ.1) THEN | |
36138 | IF(PYR(0).GT.0.5D0) ISII(III)=1 | |
36139 | ELSEIF(KCII(III).EQ.2.AND.NIIS(III).EQ.2) THEN | |
36140 | ISII(III)=1 | |
36141 | IF(PYR(0).GT.0.5D0) ISII(III)=2 | |
36142 | ENDIF | |
36143 | ENDIF | |
36144 | ||
36145 | C...Calculate allowed z range. | |
36146 | IF(NEP.EQ.1) THEN | |
36147 | PMED=PS(4) | |
36148 | ELSEIF(IGM.EQ.0.OR.MSTJ(43).LE.2) THEN | |
36149 | PMED=P(IM,5) | |
36150 | ELSE | |
36151 | IF(INUM.EQ.1) PMED=V(IM,1)*PEM | |
36152 | IF(INUM.EQ.2) PMED=(1D0-V(IM,1))*PEM | |
36153 | ENDIF | |
36154 | IF(MOD(MSTJ(43),2).EQ.1) THEN | |
36155 | ZC=PMTH(2,21)/PMED | |
36156 | ZCE=PMTH(2,22)/PMED | |
36157 | ELSE | |
36158 | ZC=0.5D0*(1D0-SQRT(MAX(0D0,1D0-(2D0*PMTH(2,21)/PMED)**2))) | |
36159 | IF(ZC.LT.1D-4) ZC=(PMTH(2,21)/PMED)**2 | |
36160 | ZCE=0.5D0*(1D0-SQRT(MAX(0D0,1D0-(2D0*PMTH(2,22)/PMED)**2))) | |
36161 | IF(ZCE.LT.1D-4) ZCE=(PMTH(2,22)/PMED)**2 | |
36162 | ENDIF | |
36163 | ZC=MIN(ZC,0.491D0) | |
36164 | ZCE=MIN(ZCE,0.491D0) | |
36165 | IF((MSTJ(41).EQ.1.AND.ZC.GT.0.49D0).OR.(MSTJ(41).GE.2.AND. | |
36166 | &MIN(ZC,ZCE).GT.0.49D0)) THEN | |
36167 | P(IEP(1),5)=PMTH(1,IFL) | |
36168 | V(IEP(1),5)=P(IEP(1),5)**2 | |
36169 | GOTO 430 | |
36170 | ENDIF | |
36171 | ||
36172 | C...Integral of Altarelli-Parisi z kernel for QCD. | |
36173 | IF(MSTJ(49).EQ.0.AND.KFL(1).EQ.21) THEN | |
36174 | FBR=6D0*LOG((1D0-ZC)/ZC)+MSTJ(45)*(0.5D0-ZC) | |
36175 | ELSEIF(MSTJ(49).EQ.0) THEN | |
36176 | FBR=(8D0/3D0)*LOG((1D0-ZC)/ZC) | |
36177 | ||
36178 | C...Integral of Altarelli-Parisi z kernel for scalar gluon. | |
36179 | ELSEIF(MSTJ(49).EQ.1.AND.KFL(1).EQ.21) THEN | |
36180 | FBR=(PARJ(87)+MSTJ(45)*PARJ(88))*(1D0-2D0*ZC) | |
36181 | ELSEIF(MSTJ(49).EQ.1) THEN | |
36182 | FBR=(1D0-2D0*ZC)/3D0 | |
36183 | IF(IGM.EQ.0.AND.M3JC.EQ.1) FBR=4D0*FBR | |
36184 | ||
36185 | C...Integral of Altarelli-Parisi z kernel for Abelian vector gluon. | |
36186 | ELSEIF(KFL(1).EQ.21) THEN | |
36187 | FBR=6D0*MSTJ(45)*(0.5D0-ZC) | |
36188 | ELSE | |
36189 | FBR=2D0*LOG((1D0-ZC)/ZC) | |
36190 | ENDIF | |
36191 | ||
36192 | C...Reset QCD probability for lepton. | |
36193 | IF(KFL(1).GE.11.AND.KFL(1).LE.18) FBR=0D0 | |
36194 | ||
36195 | C...Integral of Altarelli-Parisi kernel for photon emission. | |
36196 | IF(MSTJ(41).GE.2.AND.KFL(1).GE.1.AND.KFL(1).LE.18) THEN | |
36197 | FBRE=(KCHG(KFL(1),1)/3D0)**2*2D0*LOG((1D0-ZCE)/ZCE) | |
36198 | IF(MSTJ(41).EQ.10) FBRE=PARJ(84)*FBRE | |
36199 | ENDIF | |
36200 | ||
36201 | C...Inner veto algorithm starts. Find maximum mass for evolution. | |
36202 | 390 PMS=V(IEP(1),5) | |
36203 | IF(IGM.GE.0) THEN | |
36204 | PM2=0D0 | |
36205 | DO 400 I=2,NEP | |
36206 | PM=P(IEP(I),5) | |
36207 | IF(KFL(I).LE.40) THEN | |
36208 | IFLI=KFL(I) | |
36209 | IF(KFL(I).GE.6.AND.KFL(I).LE.8) IFLI=37+KFL(I)+ | |
36210 | & ISIGN(2,K(IEP(I),2)) | |
36211 | IF(KSH(KFL(I)).EQ.1) PM=PMTH(2,IFLI) | |
36212 | ENDIF | |
36213 | PM2=PM2+PM | |
36214 | 400 CONTINUE | |
36215 | PMS=MIN(PMS,(P(IM,5)-PM2)**2) | |
36216 | ENDIF | |
36217 | ||
36218 | C...Select mass for daughter in QCD evolution. | |
36219 | B0=27D0/6D0 | |
36220 | DO 410 IFF=4,MSTJ(45) | |
36221 | IF(PMS.GT.4D0*PMTH(2,IFF)**2) B0=(33D0-2D0*IFF)/6D0 | |
36222 | 410 CONTINUE | |
36223 | IF(FBR.LT.1D-3) THEN | |
36224 | PMSQCD=0D0 | |
36225 | ELSEIF(MSTJ(44).LE.0) THEN | |
36226 | PMSQCD=PMS*EXP(MAX(-50D0,LOG(PYR(0))*PARU(2)/(PARU(111)*FBR))) | |
36227 | ELSEIF(MSTJ(44).EQ.1) THEN | |
36228 | PMSQCD=4D0*ALAMS*(0.25D0*PMS/ALAMS)**(PYR(0)**(B0/FBR)) | |
36229 | ELSE | |
36230 | PMSQCD=PMS*EXP(MAX(-50D0,ALFM*B0*LOG(PYR(0))/FBR)) | |
36231 | ENDIF | |
36232 | IF(ZC.GT.0.49D0.OR.PMSQCD.LE.PMTH(4,IFL)**2) PMSQCD=PMTH(2,IFL)**2 | |
36233 | V(IEP(1),5)=PMSQCD | |
36234 | MCE=1 | |
36235 | ||
36236 | C...Select mass for daughter in QED evolution. | |
36237 | IF(MSTJ(41).GE.2.AND.KFL(1).GE.1.AND.KFL(1).LE.18) THEN | |
36238 | PMSQED=PMS*EXP(MAX(-50D0,LOG(PYR(0))*PARU(2)/(PARU(101)*FBRE))) | |
36239 | IF(ZCE.GT.0.49D0.OR.PMSQED.LE.PMTH(5,IFL)**2) PMSQED= | |
36240 | & PMTH(2,IFL)**2 | |
36241 | IF(PMSQED.GT.PMSQCD) THEN | |
36242 | V(IEP(1),5)=PMSQED | |
36243 | MCE=2 | |
36244 | ENDIF | |
36245 | ENDIF | |
36246 | ||
36247 | C...Check whether daughter mass below cutoff. | |
36248 | P(IEP(1),5)=SQRT(V(IEP(1),5)) | |
36249 | IF(P(IEP(1),5).LE.PMTH(3,IFL)) THEN | |
36250 | P(IEP(1),5)=PMTH(1,IFL) | |
36251 | V(IEP(1),5)=P(IEP(1),5)**2 | |
36252 | GOTO 430 | |
36253 | ENDIF | |
36254 | ||
36255 | C...Select z value of branching: q -> qgamma. | |
36256 | IF(MCE.EQ.2) THEN | |
36257 | Z=1D0-(1D0-ZCE)*(ZCE/(1D0-ZCE))**PYR(0) | |
36258 | IF(1D0+Z**2.LT.2D0*PYR(0)) GOTO 390 | |
36259 | K(IEP(1),5)=22 | |
36260 | ||
36261 | C...Select z value of branching: q -> qg, g -> gg, g -> qqbar. | |
36262 | ELSEIF(MSTJ(49).NE.1.AND.KFL(1).NE.21) THEN | |
36263 | Z=1D0-(1D0-ZC)*(ZC/(1D0-ZC))**PYR(0) | |
36264 | IF(1D0+Z**2.LT.2D0*PYR(0)) GOTO 390 | |
36265 | K(IEP(1),5)=21 | |
36266 | ELSEIF(MSTJ(49).EQ.0.AND.MSTJ(45)*(0.5D0-ZC).LT.PYR(0)*FBR) THEN | |
36267 | Z=(1D0-ZC)*(ZC/(1D0-ZC))**PYR(0) | |
36268 | IF(PYR(0).GT.0.5D0) Z=1D0-Z | |
36269 | IF((1D0-Z*(1D0-Z))**2.LT.PYR(0)) GOTO 390 | |
36270 | K(IEP(1),5)=21 | |
36271 | ELSEIF(MSTJ(49).NE.1) THEN | |
36272 | Z=ZC+(1D0-2D0*ZC)*PYR(0) | |
36273 | IF(Z**2+(1D0-Z)**2.LT.PYR(0)) GOTO 390 | |
36274 | KFLB=1+INT(MSTJ(45)*PYR(0)) | |
36275 | PMQ=4D0*PMTH(2,KFLB)**2/V(IEP(1),5) | |
36276 | IF(PMQ.GE.1D0) GOTO 390 | |
36277 | PMQ0=4D0*PMTH(2,21)**2/V(IEP(1),5) | |
36278 | IF(MOD(MSTJ(43),2).EQ.0.AND.(1D0+0.5D0*PMQ)*SQRT(1D0-PMQ).LT. | |
36279 | & PYR(0)*(1D0+0.5D0*PMQ0)*SQRT(1D0-PMQ0)) GOTO 390 | |
36280 | K(IEP(1),5)=KFLB | |
36281 | ||
36282 | C...Ditto for scalar gluon model. | |
36283 | ELSEIF(KFL(1).NE.21) THEN | |
36284 | Z=1D0-SQRT(ZC**2+PYR(0)*(1D0-2D0*ZC)) | |
36285 | K(IEP(1),5)=21 | |
36286 | ELSEIF(PYR(0)*(PARJ(87)+MSTJ(45)*PARJ(88)).LE.PARJ(87)) THEN | |
36287 | Z=ZC+(1D0-2D0*ZC)*PYR(0) | |
36288 | K(IEP(1),5)=21 | |
36289 | ELSE | |
36290 | Z=ZC+(1D0-2D0*ZC)*PYR(0) | |
36291 | KFLB=1+INT(MSTJ(45)*PYR(0)) | |
36292 | PMQ=4D0*PMTH(2,KFLB)**2/V(IEP(1),5) | |
36293 | IF(PMQ.GE.1D0) GOTO 390 | |
36294 | K(IEP(1),5)=KFLB | |
36295 | ENDIF | |
36296 | IF(MCE.EQ.1.AND.MSTJ(44).GE.2) THEN | |
36297 | IF(Z*(1D0-Z)*V(IEP(1),5).LT.PT2MIN) GOTO 390 | |
36298 | IF(ALFM/LOG(V(IEP(1),5)*Z*(1D0-Z)/ALAMS).LT.PYR(0)) GOTO 390 | |
36299 | ENDIF | |
36300 | ||
36301 | C...Check if z consistent with chosen m. | |
36302 | IF(KFL(1).EQ.21) THEN | |
36303 | KFLGD1=IABS(K(IEP(1),5)) | |
36304 | KFLGD2=KFLGD1 | |
36305 | ELSE | |
36306 | KFLGD1=KFL(1) | |
36307 | KFLGD2=IABS(K(IEP(1),5)) | |
36308 | ENDIF | |
36309 | IF(NEP.EQ.1) THEN | |
36310 | PED=PS(4) | |
36311 | ELSEIF(NEP.GE.3) THEN | |
36312 | PED=P(IEP(1),4) | |
36313 | ELSEIF(IGM.EQ.0.OR.MSTJ(43).LE.2) THEN | |
36314 | PED=0.5D0*(V(IM,5)+V(IEP(1),5)-PM2**2)/P(IM,5) | |
36315 | ELSE | |
36316 | IF(IEP(1).EQ.N+1) PED=V(IM,1)*PEM | |
36317 | IF(IEP(1).EQ.N+2) PED=(1D0-V(IM,1))*PEM | |
36318 | ENDIF | |
36319 | IF(MOD(MSTJ(43),2).EQ.1) THEN | |
36320 | IFLGD1=KFLGD1 | |
36321 | IF(KFLGD1.GE.6.AND.KFLGD1.LE.8) IFLGD1=IFL | |
36322 | PMQTH3=0.5D0*PARJ(82) | |
36323 | IF(KFLGD2.EQ.22) PMQTH3=0.5D0*PARJ(83) | |
36324 | PMQ1=(PMTH(1,IFLGD1)**2+PMQTH3**2)/V(IEP(1),5) | |
36325 | PMQ2=(PMTH(1,KFLGD2)**2+PMQTH3**2)/V(IEP(1),5) | |
36326 | ZD=SQRT(MAX(0D0,(1D0-V(IEP(1),5)/PED**2)*((1D0-PMQ1-PMQ2)**2- | |
36327 | & 4D0*PMQ1*PMQ2))) | |
36328 | ZH=1D0+PMQ1-PMQ2 | |
36329 | ELSE | |
36330 | ZD=SQRT(MAX(0D0,1D0-V(IEP(1),5)/PED**2)) | |
36331 | ZH=1D0 | |
36332 | ENDIF | |
36333 | ZL=0.5D0*(ZH-ZD) | |
36334 | ZU=0.5D0*(ZH+ZD) | |
36335 | IF(Z.LT.ZL.OR.Z.GT.ZU) GOTO 390 | |
36336 | IF(KFL(1).EQ.21) V(IEP(1),3)=LOG(ZU*(1D0-ZL)/MAX(1D-20,ZL* | |
36337 | &(1D0-ZU))) | |
36338 | IF(KFL(1).NE.21) V(IEP(1),3)=LOG((1D0-ZL)/MAX(1D-10,1D0-ZU)) | |
36339 | ||
36340 | C...Width suppression for q -> q + g. | |
36341 | IF(MSTJ(40).NE.0.AND.KFL(1).NE.21) THEN | |
36342 | IF(IGM.EQ.0) THEN | |
36343 | EGLU=0.5D0*PS(5)*(1D0-Z)*(1D0+V(IEP(1),5)/V(NS+1,5)) | |
36344 | ELSE | |
36345 | EGLU=PMED*(1D0-Z) | |
36346 | ENDIF | |
36347 | CHI=PARJ(89)**2/(PARJ(89)**2+EGLU**2) | |
36348 | IF(MSTJ(40).EQ.1) THEN | |
36349 | IF(CHI.LT.PYR(0)) GOTO 390 | |
36350 | ELSEIF(MSTJ(40).EQ.2) THEN | |
36351 | IF(1D0-CHI.LT.PYR(0)) GOTO 390 | |
36352 | ENDIF | |
36353 | ENDIF | |
36354 | ||
36355 | C...Three-jet matrix element correction. | |
36356 | IF(IGM.EQ.0.AND.M3JC.EQ.1) THEN | |
36357 | X1=Z*(1D0+V(IEP(1),5)/V(NS+1,5)) | |
36358 | X2=1D0-V(IEP(1),5)/V(NS+1,5) | |
36359 | X3=(1D0-X1)+(1D0-X2) | |
36360 | IF(MCE.EQ.2) THEN | |
36361 | KI1=K(IPA(INUM),2) | |
36362 | KI2=K(IPA(3-INUM),2) | |
36363 | QF1=KCHG(IABS(KI1),1)*ISIGN(1,KI1)/3D0 | |
36364 | QF2=KCHG(IABS(KI2),1)*ISIGN(1,KI2)/3D0 | |
36365 | WSHOW=QF1**2*(1D0-X1)/X3*(1D0+(X1/(2D0-X2))**2)+ | |
36366 | & QF2**2*(1D0-X2)/X3*(1D0+(X2/(2D0-X1))**2) | |
36367 | WME=(QF1*(1D0-X1)/X3-QF2*(1D0-X2)/X3)**2*(X1**2+X2**2) | |
36368 | ELSEIF(MSTJ(49).NE.1) THEN | |
36369 | WSHOW=1D0+(1D0-X1)/X3*(X1/(2D0-X2))**2+ | |
36370 | & (1D0-X2)/X3*(X2/(2D0-X1))**2 | |
36371 | WME=X1**2+X2**2 | |
36372 | IF(M3JCM.EQ.1) WME=WME-QME*X3-0.5D0*QME**2- | |
36373 | & (0.5D0*QME+0.25D0*QME**2)*((1D0-X2)/MAX(1D-7,1D0-X1)+ | |
36374 | & (1D0-X1)/MAX(1D-7,1D0-X2)) | |
36375 | ELSE | |
36376 | WSHOW=4D0*X3*((1D0-X1)/(2D0-X2)**2+(1D0-X2)/(2D0-X1)**2) | |
36377 | WME=X3**2 | |
36378 | IF(MSTJ(102).GE.2) WME=X3**2-2D0*(1D0+X3)*(1D0-X1)*(1D0-X2)* | |
36379 | & PARJ(171) | |
36380 | ENDIF | |
36381 | IF(WME.LT.PYR(0)*WSHOW) GOTO 390 | |
36382 | ||
36383 | C...Impose angular ordering by rejection of nonordered emission. | |
36384 | ELSEIF(MCE.EQ.1.AND.IGM.GT.0.AND.MSTJ(42).GE.2) THEN | |
36385 | MAOM=1 | |
36386 | ZM=V(IM,1) | |
36387 | IF(IEP(1).EQ.N+2) ZM=1D0-V(IM,1) | |
36388 | THE2ID=Z*(1D0-Z)*(ZM*P(IM,4))**2/V(IEP(1),5) | |
36389 | IAOM=IM | |
36390 | 420 IF(K(IAOM,5).EQ.22) THEN | |
36391 | IAOM=K(IAOM,3) | |
36392 | IF(K(IAOM,3).LE.NS) MAOM=0 | |
36393 | IF(MAOM.EQ.1) GOTO 420 | |
36394 | ENDIF | |
36395 | IF(MAOM.EQ.1) THEN | |
36396 | THE2IM=V(IAOM,1)*(1D0-V(IAOM,1))*P(IAOM,4)**2/V(IAOM,5) | |
36397 | IF(THE2ID.LT.THE2IM) GOTO 390 | |
36398 | ENDIF | |
36399 | ENDIF | |
36400 | ||
36401 | C...Impose user-defined maximum angle at first branching. | |
36402 | IF(MSTJ(48).EQ.1) THEN | |
36403 | IF(NEP.EQ.1.AND.IM.EQ.NS) THEN | |
36404 | THE2ID=Z*(1D0-Z)*PS(4)**2/V(IEP(1),5) | |
36405 | IF(THE2ID.LT.1D0/PARJ(85)**2) GOTO 390 | |
36406 | ELSEIF(NEP.EQ.2.AND.IEP(1).EQ.NS+2) THEN | |
36407 | THE2ID=Z*(1D0-Z)*(0.5D0*P(IM,4))**2/V(IEP(1),5) | |
36408 | IF(THE2ID.LT.1D0/PARJ(85)**2) GOTO 390 | |
36409 | ELSEIF(NEP.EQ.2.AND.IEP(1).EQ.NS+3) THEN | |
36410 | THE2ID=Z*(1D0-Z)*(0.5D0*P(IM,4))**2/V(IEP(1),5) | |
36411 | IF(THE2ID.LT.1D0/PARJ(86)**2) GOTO 390 | |
36412 | ENDIF | |
36413 | ENDIF | |
36414 | ||
36415 | C...Impose angular constraint in first branching from interference | |
36416 | C...with initial state partons. | |
36417 | IF(MIIS.GE.2.AND.IEP(1).LE.NS+3) THEN | |
36418 | THE2D=MAX((1D0-Z)/Z,Z/(1D0-Z))*V(IEP(1),5)/(0.5D0*P(IM,4))**2 | |
36419 | IF(IEP(1).EQ.NS+2.AND.ISII(1).GE.1) THEN | |
36420 | IF(THE2D.GT.THEIIS(1,ISII(1))**2) GOTO 390 | |
36421 | ELSEIF(IEP(1).EQ.NS+3.AND.ISII(2).GE.1) THEN | |
36422 | IF(THE2D.GT.THEIIS(2,ISII(2))**2) GOTO 390 | |
36423 | ENDIF | |
36424 | ENDIF | |
36425 | ||
36426 | C...End of inner veto algorithm. Check if only one leg evolved so far. | |
36427 | 430 V(IEP(1),1)=Z | |
36428 | ISL(1)=0 | |
36429 | ISL(2)=0 | |
36430 | IF(NEP.EQ.1) GOTO 460 | |
36431 | IF(NEP.EQ.2.AND.P(IEP(1),5)+P(IEP(2),5).GE.P(IM,5)) GOTO 330 | |
36432 | DO 440 I=1,NEP | |
36433 | IF(ITRY(I).EQ.0.AND.KFLD(I).LE.40) THEN | |
36434 | IF(KSH(KFLD(I)).EQ.1) THEN | |
36435 | IFLD=KFLD(I) | |
36436 | IF(KFLD(I).GE.6.AND.KFLD(I).LE.8) IFLD=37+KFLD(I)+ | |
36437 | & ISIGN(2,K(N+I,2)) | |
36438 | IF(P(N+I,5).GE.PMTH(2,IFLD)) GOTO 330 | |
36439 | ENDIF | |
36440 | ENDIF | |
36441 | 440 CONTINUE | |
36442 | ||
36443 | C...Check if chosen multiplet m1,m2,z1,z2 is physical. | |
36444 | IF(NEP.EQ.3) THEN | |
36445 | PA1S=(P(N+1,4)+P(N+1,5))*(P(N+1,4)-P(N+1,5)) | |
36446 | PA2S=(P(N+2,4)+P(N+2,5))*(P(N+2,4)-P(N+2,5)) | |
36447 | PA3S=(P(N+3,4)+P(N+3,5))*(P(N+3,4)-P(N+3,5)) | |
36448 | PTS=0.25D0*(2D0*PA1S*PA2S+2D0*PA1S*PA3S+2D0*PA2S*PA3S- | |
36449 | & PA1S**2-PA2S**2-PA3S**2)/PA1S | |
36450 | IF(PTS.LE.0D0) GOTO 330 | |
36451 | ELSEIF(IGM.EQ.0.OR.MSTJ(43).LE.2.OR.MOD(MSTJ(43),2).EQ.0) THEN | |
36452 | DO 450 I1=N+1,N+2 | |
36453 | KFLDA=IABS(K(I1,2)) | |
36454 | IF(KFLDA.GT.40) GOTO 450 | |
36455 | IF(KSH(KFLDA).EQ.0) GOTO 450 | |
36456 | IFLDA=KFLDA | |
36457 | IF(KFLDA.GE.6.AND.KFLDA.LE.8) IFLDA=37+KFLDA+ | |
36458 | & ISIGN(2,K(I1,2)) | |
36459 | IF(P(I1,5).LT.PMTH(2,IFLDA)) GOTO 450 | |
36460 | IF(KFLDA.EQ.21) THEN | |
36461 | KFLGD1=IABS(K(I1,5)) | |
36462 | KFLGD2=KFLGD1 | |
36463 | ELSE | |
36464 | KFLGD1=KFLDA | |
36465 | KFLGD2=IABS(K(I1,5)) | |
36466 | ENDIF | |
36467 | I2=2*N+3-I1 | |
36468 | IF(IGM.EQ.0.OR.MSTJ(43).LE.2) THEN | |
36469 | PED=0.5D0*(V(IM,5)+V(I1,5)-V(I2,5))/P(IM,5) | |
36470 | ELSE | |
36471 | IF(I1.EQ.N+1) ZM=V(IM,1) | |
36472 | IF(I1.EQ.N+2) ZM=1D0-V(IM,1) | |
36473 | PML=SQRT((V(IM,5)-V(N+1,5)-V(N+2,5))**2- | |
36474 | & 4D0*V(N+1,5)*V(N+2,5)) | |
36475 | PED=PEM*(0.5D0*(V(IM,5)-PML+V(I1,5)-V(I2,5))+PML*ZM)/V(IM,5) | |
36476 | ENDIF | |
36477 | IF(MOD(MSTJ(43),2).EQ.1) THEN | |
36478 | PMQTH3=0.5D0*PARJ(82) | |
36479 | IF(KFLGD2.EQ.22) PMQTH3=0.5D0*PARJ(83) | |
36480 | IFLGD1=KFLGD1 | |
36481 | IF(KFLGD1.GE.6.AND.KFLGD1.LE.8) IFLGD1=IFLDA | |
36482 | PMQ1=(PMTH(1,IFLGD1)**2+PMQTH3**2)/V(I1,5) | |
36483 | PMQ2=(PMTH(1,KFLGD2)**2+PMQTH3**2)/V(I1,5) | |
36484 | ZD=SQRT(MAX(0D0,(1D0-V(I1,5)/PED**2)*((1D0-PMQ1-PMQ2)**2- | |
36485 | & 4D0*PMQ1*PMQ2))) | |
36486 | ZH=1D0+PMQ1-PMQ2 | |
36487 | ELSE | |
36488 | ZD=SQRT(MAX(0D0,1D0-V(I1,5)/PED**2)) | |
36489 | ZH=1D0 | |
36490 | ENDIF | |
36491 | ZL=0.5D0*(ZH-ZD) | |
36492 | ZU=0.5D0*(ZH+ZD) | |
36493 | IF(I1.EQ.N+1.AND.(V(I1,1).LT.ZL.OR.V(I1,1).GT.ZU)) ISL(1)=1 | |
36494 | IF(I1.EQ.N+2.AND.(V(I1,1).LT.ZL.OR.V(I1,1).GT.ZU)) ISL(2)=1 | |
36495 | IF(KFLDA.EQ.21) V(I1,4)=LOG(ZU*(1D0-ZL)/MAX(1D-20, | |
36496 | & ZL*(1D0-ZU))) | |
36497 | IF(KFLDA.NE.21) V(I1,4)=LOG((1D0-ZL)/MAX(1D-10,1D0-ZU)) | |
36498 | 450 CONTINUE | |
36499 | IF(ISL(1).EQ.1.AND.ISL(2).EQ.1.AND.ISLM.NE.0) THEN | |
36500 | ISL(3-ISLM)=0 | |
36501 | ISLM=3-ISLM | |
36502 | ELSEIF(ISL(1).EQ.1.AND.ISL(2).EQ.1) THEN | |
36503 | ZDR1=MAX(0D0,V(N+1,3)/MAX(1D-6,V(N+1,4))-1D0) | |
36504 | ZDR2=MAX(0D0,V(N+2,3)/MAX(1D-6,V(N+2,4))-1D0) | |
36505 | IF(ZDR2.GT.PYR(0)*(ZDR1+ZDR2)) ISL(1)=0 | |
36506 | IF(ISL(1).EQ.1) ISL(2)=0 | |
36507 | IF(ISL(1).EQ.0) ISLM=1 | |
36508 | IF(ISL(2).EQ.0) ISLM=2 | |
36509 | ENDIF | |
36510 | IF(ISL(1).EQ.1.OR.ISL(2).EQ.1) GOTO 330 | |
36511 | ENDIF | |
36512 | IFLD1=KFLD(1) | |
36513 | IF(KFLD(1).GE.6.AND.KFLD(1).LE.8) IFLD1=37+KFLD(1)+ | |
36514 | &ISIGN(2,K(N+1,2)) | |
36515 | IFLD2=KFLD(2) | |
36516 | IF(KFLD(2).GE.6.AND.KFLD(2).LE.8) IFLD2=37+KFLD(2)+ | |
36517 | &ISIGN(2,K(N+2,2)) | |
36518 | IF(IGM.GT.0.AND.MOD(MSTJ(43),2).EQ.1.AND.(P(N+1,5).GE. | |
36519 | &PMTH(2,IFLD1).OR.P(N+2,5).GE.PMTH(2,IFLD2))) THEN | |
36520 | PMQ1=V(N+1,5)/V(IM,5) | |
36521 | PMQ2=V(N+2,5)/V(IM,5) | |
36522 | ZD=SQRT(MAX(0D0,(1D0-V(IM,5)/PEM**2)*((1D0-PMQ1-PMQ2)**2- | |
36523 | & 4D0*PMQ1*PMQ2))) | |
36524 | ZH=1D0+PMQ1-PMQ2 | |
36525 | ZL=0.5D0*(ZH-ZD) | |
36526 | ZU=0.5D0*(ZH+ZD) | |
36527 | IF(V(IM,1).LT.ZL.OR.V(IM,1).GT.ZU) GOTO 330 | |
36528 | ENDIF | |
36529 | ||
36530 | C...Accepted branch. Construct four-momentum for initial partons. | |
36531 | 460 MAZIP=0 | |
36532 | MAZIC=0 | |
36533 | IF(NEP.EQ.1) THEN | |
36534 | P(N+1,1)=0D0 | |
36535 | P(N+1,2)=0D0 | |
36536 | P(N+1,3)=SQRT(MAX(0D0,(P(IPA(1),4)+P(N+1,5))*(P(IPA(1),4)- | |
36537 | & P(N+1,5)))) | |
36538 | P(N+1,4)=P(IPA(1),4) | |
36539 | V(N+1,2)=P(N+1,4) | |
36540 | ELSEIF(IGM.EQ.0.AND.NEP.EQ.2) THEN | |
36541 | PED1=0.5D0*(V(IM,5)+V(N+1,5)-V(N+2,5))/P(IM,5) | |
36542 | P(N+1,1)=0D0 | |
36543 | P(N+1,2)=0D0 | |
36544 | P(N+1,3)=SQRT(MAX(0D0,(PED1+P(N+1,5))*(PED1-P(N+1,5)))) | |
36545 | P(N+1,4)=PED1 | |
36546 | P(N+2,1)=0D0 | |
36547 | P(N+2,2)=0D0 | |
36548 | P(N+2,3)=-P(N+1,3) | |
36549 | P(N+2,4)=P(IM,5)-PED1 | |
36550 | V(N+1,2)=P(N+1,4) | |
36551 | V(N+2,2)=P(N+2,4) | |
36552 | ELSEIF(NEP.EQ.3) THEN | |
36553 | P(N+1,1)=0D0 | |
36554 | P(N+1,2)=0D0 | |
36555 | P(N+1,3)=SQRT(MAX(0D0,PA1S)) | |
36556 | P(N+2,1)=SQRT(PTS) | |
36557 | P(N+2,2)=0D0 | |
36558 | P(N+2,3)=0.5D0*(PA3S-PA2S-PA1S)/P(N+1,3) | |
36559 | P(N+3,1)=-P(N+2,1) | |
36560 | P(N+3,2)=0D0 | |
36561 | P(N+3,3)=-(P(N+1,3)+P(N+2,3)) | |
36562 | V(N+1,2)=P(N+1,4) | |
36563 | V(N+2,2)=P(N+2,4) | |
36564 | V(N+3,2)=P(N+3,4) | |
36565 | ||
36566 | C...Construct transverse momentum for ordinary branching in shower. | |
36567 | ELSE | |
36568 | ZM=V(IM,1) | |
36569 | PZM=SQRT(MAX(0D0,(PEM+P(IM,5))*(PEM-P(IM,5)))) | |
36570 | PMLS=(V(IM,5)-V(N+1,5)-V(N+2,5))**2-4D0*V(N+1,5)*V(N+2,5) | |
36571 | IF(PZM.LE.0D0) THEN | |
36572 | PTS=0D0 | |
36573 | ELSEIF(MOD(MSTJ(43),2).EQ.1) THEN | |
36574 | PTS=(PEM**2*(ZM*(1D0-ZM)*V(IM,5)-(1D0-ZM)*V(N+1,5)- | |
36575 | & ZM*V(N+2,5))-0.25D0*PMLS)/PZM**2 | |
36576 | ELSE | |
36577 | PTS=PMLS*(ZM*(1D0-ZM)*PEM**2/V(IM,5)-0.25D0)/PZM**2 | |
36578 | ENDIF | |
36579 | PT=SQRT(MAX(0D0,PTS)) | |
36580 | ||
36581 | C...Find coefficient of azimuthal asymmetry due to gluon polarization. | |
36582 | HAZIP=0D0 | |
36583 | IF(MSTJ(49).NE.1.AND.MOD(MSTJ(46),2).EQ.1.AND.K(IM,2).EQ.21 | |
36584 | & .AND.IAU.NE.0) THEN | |
36585 | IF(K(IGM,3).NE.0) MAZIP=1 | |
36586 | ZAU=V(IGM,1) | |
36587 | IF(IAU.EQ.IM+1) ZAU=1D0-V(IGM,1) | |
36588 | IF(MAZIP.EQ.0) ZAU=0D0 | |
36589 | IF(K(IGM,2).NE.21) THEN | |
36590 | HAZIP=2D0*ZAU/(1D0+ZAU**2) | |
36591 | ELSE | |
36592 | HAZIP=(ZAU/(1D0-ZAU*(1D0-ZAU)))**2 | |
36593 | ENDIF | |
36594 | IF(K(N+1,2).NE.21) THEN | |
36595 | HAZIP=HAZIP*(-2D0*ZM*(1D0-ZM))/(1D0-2D0*ZM*(1D0-ZM)) | |
36596 | ELSE | |
36597 | HAZIP=HAZIP*(ZM*(1D0-ZM)/(1D0-ZM*(1D0-ZM)))**2 | |
36598 | ENDIF | |
36599 | ENDIF | |
36600 | ||
36601 | C...Find coefficient of azimuthal asymmetry due to soft gluon | |
36602 | C...interference. | |
36603 | HAZIC=0D0 | |
36604 | IF(MSTJ(49).NE.2.AND.MSTJ(46).GE.2.AND.(K(N+1,2).EQ.21.OR. | |
36605 | & K(N+2,2).EQ.21).AND.IAU.NE.0) THEN | |
36606 | IF(K(IGM,3).NE.0) MAZIC=N+1 | |
36607 | IF(K(IGM,3).NE.0.AND.K(N+1,2).NE.21) MAZIC=N+2 | |
36608 | IF(K(IGM,3).NE.0.AND.K(N+1,2).EQ.21.AND.K(N+2,2).EQ.21.AND. | |
36609 | & ZM.GT.0.5D0) MAZIC=N+2 | |
36610 | IF(K(IAU,2).EQ.22) MAZIC=0 | |
36611 | ZS=ZM | |
36612 | IF(MAZIC.EQ.N+2) ZS=1D0-ZM | |
36613 | ZGM=V(IGM,1) | |
36614 | IF(IAU.EQ.IM-1) ZGM=1D0-V(IGM,1) | |
36615 | IF(MAZIC.EQ.0) ZGM=1D0 | |
36616 | IF(MAZIC.NE.0) HAZIC=(P(IM,5)/P(IGM,5))* | |
36617 | & SQRT((1D0-ZS)*(1D0-ZGM)/(ZS*ZGM)) | |
36618 | HAZIC=MIN(0.95D0,HAZIC) | |
36619 | ENDIF | |
36620 | ENDIF | |
36621 | ||
36622 | C...Construct kinematics for ordinary branching in shower. | |
36623 | 470 IF(NEP.EQ.2.AND.IGM.GT.0) THEN | |
36624 | IF(MOD(MSTJ(43),2).EQ.1) THEN | |
36625 | P(N+1,4)=PEM*V(IM,1) | |
36626 | ELSE | |
36627 | P(N+1,4)=PEM*(0.5D0*(V(IM,5)-SQRT(PMLS)+V(N+1,5)-V(N+2,5))+ | |
36628 | & SQRT(PMLS)*ZM)/V(IM,5) | |
36629 | ENDIF | |
36630 | PHI=PARU(2)*PYR(0) | |
36631 | P(N+1,1)=PT*COS(PHI) | |
36632 | P(N+1,2)=PT*SIN(PHI) | |
36633 | IF(PZM.GT.0D0) THEN | |
36634 | P(N+1,3)=0.5D0*(V(N+2,5)-V(N+1,5)-V(IM,5)+ | |
36635 | & 2D0*PEM*P(N+1,4))/PZM | |
36636 | ELSE | |
36637 | P(N+1,3)=0D0 | |
36638 | ENDIF | |
36639 | P(N+2,1)=-P(N+1,1) | |
36640 | P(N+2,2)=-P(N+1,2) | |
36641 | P(N+2,3)=PZM-P(N+1,3) | |
36642 | P(N+2,4)=PEM-P(N+1,4) | |
36643 | IF(MSTJ(43).LE.2) THEN | |
36644 | V(N+1,2)=(PEM*P(N+1,4)-PZM*P(N+1,3))/P(IM,5) | |
36645 | V(N+2,2)=(PEM*P(N+2,4)-PZM*P(N+2,3))/P(IM,5) | |
36646 | ENDIF | |
36647 | ENDIF | |
36648 | ||
36649 | C...Rotate and boost daughters. | |
36650 | IF(IGM.GT.0) THEN | |
36651 | IF(MSTJ(43).LE.2) THEN | |
36652 | BEX=P(IGM,1)/P(IGM,4) | |
36653 | BEY=P(IGM,2)/P(IGM,4) | |
36654 | BEZ=P(IGM,3)/P(IGM,4) | |
36655 | GA=P(IGM,4)/P(IGM,5) | |
36656 | GABEP=GA*(GA*(BEX*P(IM,1)+BEY*P(IM,2)+BEZ*P(IM,3))/(1D0+GA)- | |
36657 | & P(IM,4)) | |
36658 | ELSE | |
36659 | BEX=0D0 | |
36660 | BEY=0D0 | |
36661 | BEZ=0D0 | |
36662 | GA=1D0 | |
36663 | GABEP=0D0 | |
36664 | ENDIF | |
36665 | THE=PYANGL(P(IM,3)+GABEP*BEZ,SQRT((P(IM,1)+GABEP*BEX)**2+ | |
36666 | & (P(IM,2)+GABEP*BEY)**2)) | |
36667 | PHI=PYANGL(P(IM,1)+GABEP*BEX,P(IM,2)+GABEP*BEY) | |
36668 | DO 480 I=N+1,N+2 | |
36669 | DP(1)=COS(THE)*COS(PHI)*P(I,1)-SIN(PHI)*P(I,2)+ | |
36670 | & SIN(THE)*COS(PHI)*P(I,3) | |
36671 | DP(2)=COS(THE)*SIN(PHI)*P(I,1)+COS(PHI)*P(I,2)+ | |
36672 | & SIN(THE)*SIN(PHI)*P(I,3) | |
36673 | DP(3)=-SIN(THE)*P(I,1)+COS(THE)*P(I,3) | |
36674 | DP(4)=P(I,4) | |
36675 | DBP=BEX*DP(1)+BEY*DP(2)+BEZ*DP(3) | |
36676 | DGABP=GA*(GA*DBP/(1D0+GA)+DP(4)) | |
36677 | P(I,1)=DP(1)+DGABP*BEX | |
36678 | P(I,2)=DP(2)+DGABP*BEY | |
36679 | P(I,3)=DP(3)+DGABP*BEZ | |
36680 | P(I,4)=GA*(DP(4)+DBP) | |
36681 | 480 CONTINUE | |
36682 | ENDIF | |
36683 | ||
36684 | C...Weight with azimuthal distribution, if required. | |
36685 | IF(MAZIP.NE.0.OR.MAZIC.NE.0) THEN | |
36686 | DO 490 J=1,3 | |
36687 | DPT(1,J)=P(IM,J) | |
36688 | DPT(2,J)=P(IAU,J) | |
36689 | DPT(3,J)=P(N+1,J) | |
36690 | 490 CONTINUE | |
36691 | DPMA=DPT(1,1)*DPT(2,1)+DPT(1,2)*DPT(2,2)+DPT(1,3)*DPT(2,3) | |
36692 | DPMD=DPT(1,1)*DPT(3,1)+DPT(1,2)*DPT(3,2)+DPT(1,3)*DPT(3,3) | |
36693 | DPMM=DPT(1,1)**2+DPT(1,2)**2+DPT(1,3)**2 | |
36694 | DO 500 J=1,3 | |
36695 | DPT(4,J)=DPT(2,J)-DPMA*DPT(1,J)/DPMM | |
36696 | DPT(5,J)=DPT(3,J)-DPMD*DPT(1,J)/DPMM | |
36697 | 500 CONTINUE | |
36698 | DPT(4,4)=SQRT(DPT(4,1)**2+DPT(4,2)**2+DPT(4,3)**2) | |
36699 | DPT(5,4)=SQRT(DPT(5,1)**2+DPT(5,2)**2+DPT(5,3)**2) | |
36700 | IF(MIN(DPT(4,4),DPT(5,4)).GT.0.1D0*PARJ(82)) THEN | |
36701 | CAD=(DPT(4,1)*DPT(5,1)+DPT(4,2)*DPT(5,2)+ | |
36702 | & DPT(4,3)*DPT(5,3))/(DPT(4,4)*DPT(5,4)) | |
36703 | IF(MAZIP.NE.0) THEN | |
36704 | IF(1D0+HAZIP*(2D0*CAD**2-1D0).LT.PYR(0)*(1D0+ABS(HAZIP))) | |
36705 | & GOTO 470 | |
36706 | ENDIF | |
36707 | IF(MAZIC.NE.0) THEN | |
36708 | IF(MAZIC.EQ.N+2) CAD=-CAD | |
36709 | IF((1D0-HAZIC)*(1D0-HAZIC*CAD)/(1D0+HAZIC**2-2D0*HAZIC*CAD) | |
36710 | & .LT.PYR(0)) GOTO 470 | |
36711 | ENDIF | |
36712 | ENDIF | |
36713 | ENDIF | |
36714 | ||
36715 | C...Azimuthal anisotropy due to interference with initial state partons. | |
36716 | IF(MOD(MIIS,2).EQ.1.AND.IGM.EQ.NS+1.AND.(K(N+1,2).EQ.21.OR. | |
36717 | &K(N+2,2).EQ.21)) THEN | |
36718 | III=IM-NS-1 | |
36719 | IF(ISII(III).GE.1) THEN | |
36720 | IAZIID=N+1 | |
36721 | IF(K(N+1,2).NE.21) IAZIID=N+2 | |
36722 | IF(K(N+1,2).EQ.21.AND.K(N+2,2).EQ.21.AND. | |
36723 | & P(N+1,4).GT.P(N+2,4)) IAZIID=N+2 | |
36724 | THEIID=PYANGL(P(IAZIID,3),SQRT(P(IAZIID,1)**2+P(IAZIID,2)**2)) | |
36725 | IF(III.EQ.2) THEIID=PARU(1)-THEIID | |
36726 | PHIIID=PYANGL(P(IAZIID,1),P(IAZIID,2)) | |
36727 | HAZII=MIN(0.95D0,THEIID/THEIIS(III,ISII(III))) | |
36728 | CAD=COS(PHIIID-PHIIIS(III,ISII(III))) | |
36729 | PHIREL=ABS(PHIIID-PHIIIS(III,ISII(III))) | |
36730 | IF(PHIREL.GT.PARU(1)) PHIREL=PARU(2)-PHIREL | |
36731 | IF((1D0-HAZII)*(1D0-HAZII*CAD)/(1D0+HAZII**2-2D0*HAZII*CAD) | |
36732 | & .LT.PYR(0)) GOTO 470 | |
36733 | ENDIF | |
36734 | ENDIF | |
36735 | ||
36736 | C...Continue loop over partons that may branch, until none left. | |
36737 | IF(IGM.GE.0) K(IM,1)=14 | |
36738 | N=N+NEP | |
36739 | NEP=2 | |
36740 | IF(N.GT.MSTU(4)-MSTU(32)-5) THEN | |
36741 | CALL PYERRM(11,'(PYSHOW:) no more memory left in PYJETS') | |
36742 | IF(MSTU(21).GE.1) N=NS | |
36743 | IF(MSTU(21).GE.1) RETURN | |
36744 | ENDIF | |
36745 | GOTO 270 | |
36746 | ||
36747 | C...Set information on imagined shower initiator. | |
36748 | 510 IF(NPA.GE.2) THEN | |
36749 | K(NS+1,1)=11 | |
36750 | K(NS+1,2)=94 | |
36751 | K(NS+1,3)=IP1 | |
36752 | IF(IP2.GT.0.AND.IP2.LT.IP1) K(NS+1,3)=IP2 | |
36753 | K(NS+1,4)=NS+2 | |
36754 | K(NS+1,5)=NS+1+NPA | |
36755 | IIM=1 | |
36756 | ELSE | |
36757 | IIM=0 | |
36758 | ENDIF | |
36759 | ||
36760 | C...Reconstruct string drawing information. | |
36761 | DO 520 I=NS+1+IIM,N | |
36762 | IF(K(I,1).LE.10.AND.K(I,2).EQ.22) THEN | |
36763 | K(I,1)=1 | |
36764 | ELSEIF(K(I,1).LE.10.AND.IABS(K(I,2)).GE.11.AND. | |
36765 | & IABS(K(I,2)).LE.18) THEN | |
36766 | K(I,1)=1 | |
36767 | ELSEIF(K(I,1).LE.10) THEN | |
36768 | K(I,4)=MSTU(5)*(K(I,4)/MSTU(5)) | |
36769 | K(I,5)=MSTU(5)*(K(I,5)/MSTU(5)) | |
36770 | ELSEIF(K(MOD(K(I,4),MSTU(5))+1,2).NE.22) THEN | |
36771 | ID1=MOD(K(I,4),MSTU(5)) | |
36772 | IF(K(I,2).GE.1.AND.K(I,2).LE.8) ID1=MOD(K(I,4),MSTU(5))+1 | |
36773 | ID2=2*MOD(K(I,4),MSTU(5))+1-ID1 | |
36774 | K(I,4)=MSTU(5)*(K(I,4)/MSTU(5))+ID1 | |
36775 | K(I,5)=MSTU(5)*(K(I,5)/MSTU(5))+ID2 | |
36776 | K(ID1,4)=K(ID1,4)+MSTU(5)*I | |
36777 | K(ID1,5)=K(ID1,5)+MSTU(5)*ID2 | |
36778 | K(ID2,4)=K(ID2,4)+MSTU(5)*ID1 | |
36779 | K(ID2,5)=K(ID2,5)+MSTU(5)*I | |
36780 | ELSE | |
36781 | ID1=MOD(K(I,4),MSTU(5)) | |
36782 | ID2=ID1+1 | |
36783 | K(I,4)=MSTU(5)*(K(I,4)/MSTU(5))+ID1 | |
36784 | K(I,5)=MSTU(5)*(K(I,5)/MSTU(5))+ID1 | |
36785 | IF(IABS(K(I,2)).LE.10.OR.K(ID1,1).GE.11) THEN | |
36786 | K(ID1,4)=K(ID1,4)+MSTU(5)*I | |
36787 | K(ID1,5)=K(ID1,5)+MSTU(5)*I | |
36788 | ELSE | |
36789 | K(ID1,4)=0 | |
36790 | K(ID1,5)=0 | |
36791 | ENDIF | |
36792 | K(ID2,4)=0 | |
36793 | K(ID2,5)=0 | |
36794 | ENDIF | |
36795 | 520 CONTINUE | |
36796 | ||
36797 | C...Transformation from CM frame. | |
36798 | IF(NPA.GE.2) THEN | |
36799 | BEX=PS(1)/PS(4) | |
36800 | BEY=PS(2)/PS(4) | |
36801 | BEZ=PS(3)/PS(4) | |
36802 | GA=PS(4)/PS(5) | |
36803 | GABEP=GA*(GA*(BEX*P(IPA(1),1)+BEY*P(IPA(1),2)+BEZ*P(IPA(1),3)) | |
36804 | & /(1D0+GA)-P(IPA(1),4)) | |
36805 | ELSE | |
36806 | BEX=0D0 | |
36807 | BEY=0D0 | |
36808 | BEZ=0D0 | |
36809 | GABEP=0D0 | |
36810 | ENDIF | |
36811 | THE=PYANGL(P(IPA(1),3)+GABEP*BEZ,SQRT((P(IPA(1),1) | |
36812 | &+GABEP*BEX)**2+(P(IPA(1),2)+GABEP*BEY)**2)) | |
36813 | PHI=PYANGL(P(IPA(1),1)+GABEP*BEX,P(IPA(1),2)+GABEP*BEY) | |
36814 | IF(NPA.EQ.3) THEN | |
36815 | CHI=PYANGL(COS(THE)*COS(PHI)*(P(IPA(2),1)+GABEP*BEX)+COS(THE)* | |
36816 | & SIN(PHI)*(P(IPA(2),2)+GABEP*BEY)-SIN(THE)*(P(IPA(2),3)+GABEP* | |
36817 | & BEZ),-SIN(PHI)*(P(IPA(2),1)+GABEP*BEX)+COS(PHI)*(P(IPA(2),2)+ | |
36818 | & GABEP*BEY)) | |
36819 | MSTU(33)=1 | |
36820 | CALL PYROBO(NS+1,N,0D0,CHI,0D0,0D0,0D0) | |
36821 | ENDIF | |
36822 | MSTU(33)=1 | |
36823 | CALL PYROBO(NS+1,N,THE,PHI,BEX,BEY,BEZ) | |
36824 | ||
36825 | C...Decay vertex of shower. | |
36826 | DO 540 I=NS+1,N | |
36827 | DO 530 J=1,5 | |
36828 | V(I,J)=V(IP1,J) | |
36829 | 530 CONTINUE | |
36830 | 540 CONTINUE | |
36831 | ||
36832 | C...Delete trivial shower, else connect initiators. | |
36833 | IF(N.EQ.NS+NPA+IIM) THEN | |
36834 | N=NS | |
36835 | ELSE | |
36836 | DO 550 IP=1,NPA | |
36837 | K(IPA(IP),1)=14 | |
36838 | K(IPA(IP),4)=K(IPA(IP),4)+NS+IIM+IP | |
36839 | K(IPA(IP),5)=K(IPA(IP),5)+NS+IIM+IP | |
36840 | K(NS+IIM+IP,3)=IPA(IP) | |
36841 | IF(IIM.EQ.1.AND.MSTU(16).NE.2) K(NS+IIM+IP,3)=NS+1 | |
36842 | IF(K(NS+IIM+IP,1).NE.1) THEN | |
36843 | K(NS+IIM+IP,4)=MSTU(5)*IPA(IP)+K(NS+IIM+IP,4) | |
36844 | K(NS+IIM+IP,5)=MSTU(5)*IPA(IP)+K(NS+IIM+IP,5) | |
36845 | ENDIF | |
36846 | 550 CONTINUE | |
36847 | ENDIF | |
36848 | ||
36849 | RETURN | |
36850 | END | |
36851 | ||
36852 | C********************************************************************* | |
36853 | ||
36854 | C...PYBOEI | |
36855 | C...Modifies an event so as to approximately take into account | |
36856 | C...Bose-Einstein effects according to a simple phenomenological | |
36857 | C...parametrization. | |
36858 | ||
36859 | SUBROUTINE PYBOEI(NSAV) | |
36860 | ||
36861 | C...Double precision and integer declarations. | |
36862 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
36863 | INTEGER PYK,PYCHGE,PYCOMP | |
36864 | C...Commonblocks. | |
36865 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
36866 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
36867 | SAVE /PYJETS/,/PYDAT1/ | |
36868 | C...Local arrays and data. | |
36869 | DIMENSION DPS(4),KFBE(9),NBE(0:9),BEI(100) | |
36870 | DATA KFBE/211,-211,111,321,-321,130,310,221,331/ | |
36871 | ||
36872 | C...Boost event to overall CM frame. Calculate CM energy. | |
36873 | IF((MSTJ(51).NE.1.AND.MSTJ(51).NE.2).OR.N-NSAV.LE.1) RETURN | |
36874 | DO 100 J=1,4 | |
36875 | DPS(J)=0D0 | |
36876 | 100 CONTINUE | |
36877 | DO 120 I=1,N | |
36878 | KFA=IABS(K(I,2)) | |
36879 | IF(K(I,1).LE.10.AND.((KFA.GT.10.AND.KFA.LE.20).OR.KFA.EQ.22) | |
36880 | & .AND.K(I,3).GT.0) THEN | |
36881 | KFMA=IABS(K(K(I,3),2)) | |
36882 | IF(KFMA.GT.10.AND.KFMA.LE.80) K(I,1)=-K(I,1) | |
36883 | ENDIF | |
36884 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 120 | |
36885 | DO 110 J=1,4 | |
36886 | DPS(J)=DPS(J)+P(I,J) | |
36887 | 110 CONTINUE | |
36888 | 120 CONTINUE | |
36889 | CALL PYROBO(0,0,0D0,0D0,-DPS(1)/DPS(4),-DPS(2)/DPS(4), | |
36890 | &-DPS(3)/DPS(4)) | |
36891 | PECM=0D0 | |
36892 | DO 130 I=1,N | |
36893 | IF(K(I,1).GE.1.AND.K(I,1).LE.10) PECM=PECM+P(I,4) | |
36894 | 130 CONTINUE | |
36895 | ||
36896 | C...Reserve copy of particles by species at end of record. | |
36897 | NBE(0)=N+MSTU(3) | |
36898 | DO 160 IBE=1,MIN(9,MSTJ(52)) | |
36899 | NBE(IBE)=NBE(IBE-1) | |
36900 | DO 150 I=NSAV+1,N | |
36901 | IF(K(I,2).NE.KFBE(IBE)) GOTO 150 | |
36902 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 150 | |
36903 | IF(NBE(IBE).GE.MSTU(4)-MSTU(32)-5) THEN | |
36904 | CALL PYERRM(11,'(PYBOEI:) no more memory left in PYJETS') | |
36905 | RETURN | |
36906 | ENDIF | |
36907 | NBE(IBE)=NBE(IBE)+1 | |
36908 | K(NBE(IBE),1)=I | |
36909 | DO 140 J=1,3 | |
36910 | P(NBE(IBE),J)=0D0 | |
36911 | 140 CONTINUE | |
36912 | 150 CONTINUE | |
36913 | 160 CONTINUE | |
36914 | IF(NBE(MIN(9,MSTJ(52)))-NBE(0).LE.1) GOTO 280 | |
36915 | ||
36916 | C...Tabulate integral for subsequent momentum shift. | |
36917 | DO 220 IBE=1,MIN(9,MSTJ(52)) | |
36918 | IF(IBE.NE.1.AND.IBE.NE.4.AND.IBE.LE.7) GOTO 180 | |
36919 | IF(IBE.EQ.1.AND.MAX(NBE(1)-NBE(0),NBE(2)-NBE(1),NBE(3)-NBE(2)) | |
36920 | & .LE.1) GOTO 180 | |
36921 | IF(IBE.EQ.4.AND.MAX(NBE(4)-NBE(3),NBE(5)-NBE(4),NBE(6)-NBE(5), | |
36922 | & NBE(7)-NBE(6)).LE.1) GOTO 180 | |
36923 | IF(IBE.GE.8.AND.NBE(IBE)-NBE(IBE-1).LE.1) GOTO 180 | |
36924 | IF(IBE.EQ.1) PMHQ=2D0*PYMASS(211) | |
36925 | IF(IBE.EQ.4) PMHQ=2D0*PYMASS(321) | |
36926 | IF(IBE.EQ.8) PMHQ=2D0*PYMASS(221) | |
36927 | IF(IBE.EQ.9) PMHQ=2D0*PYMASS(331) | |
36928 | QDEL=0.1D0*MIN(PMHQ,PARJ(93)) | |
36929 | IF(MSTJ(51).EQ.1) THEN | |
36930 | NBIN=MIN(100,NINT(9D0*PARJ(93)/QDEL)) | |
36931 | BEEX=EXP(0.5D0*QDEL/PARJ(93)) | |
36932 | BERT=EXP(-QDEL/PARJ(93)) | |
36933 | ELSE | |
36934 | NBIN=MIN(100,NINT(3D0*PARJ(93)/QDEL)) | |
36935 | ENDIF | |
36936 | DO 170 IBIN=1,NBIN | |
36937 | QBIN=QDEL*(IBIN-0.5D0) | |
36938 | BEI(IBIN)=QDEL*(QBIN**2+QDEL**2/12D0)/SQRT(QBIN**2+PMHQ**2) | |
36939 | IF(MSTJ(51).EQ.1) THEN | |
36940 | BEEX=BEEX*BERT | |
36941 | BEI(IBIN)=BEI(IBIN)*BEEX | |
36942 | ELSE | |
36943 | BEI(IBIN)=BEI(IBIN)*EXP(-(QBIN/PARJ(93))**2) | |
36944 | ENDIF | |
36945 | IF(IBIN.GE.2) BEI(IBIN)=BEI(IBIN)+BEI(IBIN-1) | |
36946 | 170 CONTINUE | |
36947 | ||
36948 | C...Loop through particle pairs and find old relative momentum. | |
36949 | 180 DO 210 I1M=NBE(IBE-1)+1,NBE(IBE)-1 | |
36950 | I1=K(I1M,1) | |
36951 | DO 200 I2M=I1M+1,NBE(IBE) | |
36952 | I2=K(I2M,1) | |
36953 | Q2OLD=MAX(0D0,(P(I1,4)+P(I2,4))**2-(P(I1,1)+P(I2,1))**2- | |
36954 | & (P(I1,2)+ P(I2,2))**2-(P(I1,3)+P(I2,3))**2- | |
36955 | & (P(I1,5)+P(I2,5))**2) | |
36956 | QOLD=SQRT(Q2OLD) | |
36957 | ||
36958 | C...Calculate new relative momentum. | |
36959 | IF(QOLD.LT.1D-3*QDEL) THEN | |
36960 | GOTO 200 | |
36961 | ELSEIF(QOLD.LE.QDEL) THEN | |
36962 | QMOV=QOLD/3D0 | |
36963 | ELSEIF(QOLD.LT.(NBIN-0.1D0)*QDEL) THEN | |
36964 | RBIN=QOLD/QDEL | |
36965 | IBIN=RBIN | |
36966 | RINP=(RBIN**3-IBIN**3)/(3*IBIN*(IBIN+1)+1) | |
36967 | QMOV=(BEI(IBIN)+RINP*(BEI(IBIN+1)-BEI(IBIN)))* | |
36968 | & SQRT(Q2OLD+PMHQ**2)/Q2OLD | |
36969 | ELSE | |
36970 | QMOV=BEI(NBIN)*SQRT(Q2OLD+PMHQ**2)/Q2OLD | |
36971 | ENDIF | |
36972 | Q2NEW=Q2OLD*(QOLD/(QOLD+3D0*PARJ(92)*QMOV))**(2D0/3D0) | |
36973 | ||
36974 | C...Calculate and save shift to be performed on three-momenta. | |
36975 | HC1=(P(I1,4)+P(I2,4))**2-(Q2OLD-Q2NEW) | |
36976 | HC2=(Q2OLD-Q2NEW)*(P(I1,4)-P(I2,4))**2 | |
36977 | HA=0.5D0*(1D0-SQRT(HC1*Q2NEW/(HC1*Q2OLD-HC2))) | |
36978 | DO 190 J=1,3 | |
36979 | PD=HA*(P(I2,J)-P(I1,J)) | |
36980 | P(I1M,J)=P(I1M,J)+PD | |
36981 | P(I2M,J)=P(I2M,J)-PD | |
36982 | 190 CONTINUE | |
36983 | 200 CONTINUE | |
36984 | 210 CONTINUE | |
36985 | 220 CONTINUE | |
36986 | ||
36987 | C...Shift momenta and recalculate energies. | |
36988 | DO 240 IM=NBE(0)+1,NBE(MIN(9,MSTJ(52))) | |
36989 | I=K(IM,1) | |
36990 | DO 230 J=1,3 | |
36991 | P(I,J)=P(I,J)+P(IM,J) | |
36992 | 230 CONTINUE | |
36993 | P(I,4)=SQRT(P(I,5)**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
36994 | 240 CONTINUE | |
36995 | ||
36996 | C...Rescale all momenta for energy conservation. | |
36997 | PES=0D0 | |
36998 | PQS=0D0 | |
36999 | DO 250 I=1,N | |
37000 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 250 | |
37001 | PES=PES+P(I,4) | |
37002 | PQS=PQS+P(I,5)**2/P(I,4) | |
37003 | 250 CONTINUE | |
37004 | FAC=(PECM-PQS)/(PES-PQS) | |
37005 | DO 270 I=1,N | |
37006 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 270 | |
37007 | DO 260 J=1,3 | |
37008 | P(I,J)=FAC*P(I,J) | |
37009 | 260 CONTINUE | |
37010 | P(I,4)=SQRT(P(I,5)**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
37011 | 270 CONTINUE | |
37012 | ||
37013 | C...Boost back to correct reference frame. | |
37014 | 280 CALL PYROBO(0,0,0D0,0D0,DPS(1)/DPS(4),DPS(2)/DPS(4),DPS(3)/DPS(4)) | |
37015 | DO 290 I=1,N | |
37016 | IF(K(I,1).LT.0) K(I,1)=-K(I,1) | |
37017 | 290 CONTINUE | |
37018 | ||
37019 | RETURN | |
37020 | END | |
37021 | ||
37022 | C********************************************************************* | |
37023 | ||
37024 | C...PYMASS | |
37025 | C...Gives the mass of a particle/parton. | |
37026 | ||
37027 | FUNCTION PYMASS(KF) | |
37028 | ||
37029 | C...Double precision and integer declarations. | |
37030 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37031 | INTEGER PYK,PYCHGE,PYCOMP | |
37032 | C...Commonblocks. | |
37033 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37034 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37035 | SAVE /PYDAT1/,/PYDAT2/ | |
37036 | ||
37037 | C...Reset variables. Compressed code. Special case for popcorn diquarks. | |
37038 | PYMASS=0D0 | |
37039 | KFA=IABS(KF) | |
37040 | KC=PYCOMP(KF) | |
37041 | IF(KC.EQ.0) THEN | |
37042 | MSTJ(93)=0 | |
37043 | RETURN | |
37044 | ENDIF | |
37045 | ||
37046 | C...Guarantee use of constituent masses for internal checks. | |
37047 | IF((MSTJ(93).EQ.1.OR.MSTJ(93).EQ.2).AND. | |
37048 | &(KFA.LE.10.OR.MOD(KFA/10,10).EQ.0)) THEN | |
37049 | PARF(106)=PMAS(6,1) | |
37050 | PARF(107)=PMAS(7,1) | |
37051 | PARF(108)=PMAS(8,1) | |
37052 | IF(KFA.LE.10) THEN | |
37053 | PYMASS=PARF(100+KFA) | |
37054 | IF(MSTJ(93).EQ.2) PYMASS=MAX(0D0,PYMASS-PARF(121)) | |
37055 | ELSEIF(MSTJ(93).EQ.1) THEN | |
37056 | PYMASS=PARF(100+MOD(KFA/1000,10))+PARF(100+MOD(KFA/100,10)) | |
37057 | ELSE | |
37058 | PYMASS=MAX(0D0,PMAS(KC,1)-PARF(122)-2D0*PARF(112)/3D0) | |
37059 | ENDIF | |
37060 | ||
37061 | C...Other masses can be read directly off table. | |
37062 | ELSE | |
37063 | PYMASS=PMAS(KC,1) | |
37064 | ENDIF | |
37065 | ||
37066 | C...Optional mass broadening according to truncated Breit-Wigner | |
37067 | C...(either in m or in m^2). | |
37068 | IF(MSTJ(24).GE.1.AND.PMAS(KC,2).GT.1D-4) THEN | |
37069 | IF(MSTJ(24).EQ.1.OR.(MSTJ(24).EQ.2.AND.KFA.GT.100)) THEN | |
37070 | PYMASS=PYMASS+0.5D0*PMAS(KC,2)*TAN((2D0*PYR(0)-1D0)* | |
37071 | & ATAN(2D0*PMAS(KC,3)/PMAS(KC,2))) | |
37072 | ELSE | |
37073 | PM0=PYMASS | |
37074 | PMLOW=ATAN((MAX(0D0,PM0-PMAS(KC,3))**2-PM0**2)/ | |
37075 | & (PM0*PMAS(KC,2))) | |
37076 | PMUPP=ATAN(((PM0+PMAS(KC,3))**2-PM0**2)/(PM0*PMAS(KC,2))) | |
37077 | PYMASS=SQRT(MAX(0D0,PM0**2+PM0*PMAS(KC,2)*TAN(PMLOW+ | |
37078 | & (PMUPP-PMLOW)*PYR(0)))) | |
37079 | ENDIF | |
37080 | ENDIF | |
37081 | MSTJ(93)=0 | |
37082 | ||
37083 | RETURN | |
37084 | END | |
37085 | ||
37086 | C********************************************************************* | |
37087 | ||
37088 | C...PYNAME | |
37089 | C...Gives the particle/parton name as a character string. | |
37090 | ||
37091 | SUBROUTINE PYNAME(KF,CHAU) | |
37092 | ||
37093 | C...Double precision and integer declarations. | |
37094 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37095 | INTEGER PYK,PYCHGE,PYCOMP | |
37096 | C...Commonblocks. | |
37097 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37098 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37099 | COMMON/PYDAT4/CHAF(500,2) | |
37100 | CHARACTER CHAF*16 | |
37101 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT4/ | |
37102 | C...Local character variable. | |
37103 | CHARACTER CHAU*16 | |
37104 | ||
37105 | C...Read out code with distinction particle/antiparticle. | |
37106 | CHAU=' ' | |
37107 | KC=PYCOMP(KF) | |
37108 | IF(KC.NE.0) CHAU=CHAF(KC,(3-ISIGN(1,KF))/2) | |
37109 | ||
37110 | ||
37111 | RETURN | |
37112 | END | |
37113 | ||
37114 | C********************************************************************* | |
37115 | ||
37116 | C...PYCHGE | |
37117 | C...Gives three times the charge for a particle/parton. | |
37118 | ||
37119 | FUNCTION PYCHGE(KF) | |
37120 | ||
37121 | C...Double precision and integer declarations. | |
37122 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37123 | INTEGER PYK,PYCHGE,PYCOMP | |
37124 | C...Commonblocks. | |
37125 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37126 | SAVE /PYDAT2/ | |
37127 | ||
37128 | C...Read out charge and change sign for antiparticle. | |
37129 | PYCHGE=0 | |
37130 | KC=PYCOMP(KF) | |
37131 | IF(KC.NE.0) PYCHGE=KCHG(KC,1)*ISIGN(1,KF) | |
37132 | ||
37133 | RETURN | |
37134 | END | |
37135 | ||
37136 | C********************************************************************* | |
37137 | ||
37138 | C...PYCOMP | |
37139 | C...Compress the standard KF codes for use in mass and decay arrays; | |
37140 | C...also checks whether a given code actually is defined. | |
37141 | ||
37142 | FUNCTION PYCOMP(KF) | |
37143 | ||
37144 | C...Double precision and integer declarations. | |
37145 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37146 | INTEGER PYK,PYCHGE,PYCOMP | |
37147 | C...Commonblocks. | |
37148 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37149 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37150 | SAVE /PYDAT1/,/PYDAT2/ | |
37151 | C...Local arrays and saved data. | |
37152 | DIMENSION KFORD(100:500),KCORD(101:500) | |
37153 | SAVE KFORD,KCORD,NFORD,KFLAST,KCLAST | |
37154 | ||
37155 | C...Whenever necessary reorder codes for faster search. | |
37156 | IF(MSTU(20).EQ.0) THEN | |
37157 | NFORD=100 | |
37158 | KFORD(100)=0 | |
37159 | DO 120 I=101,500 | |
37160 | KFA=KCHG(I,4) | |
37161 | IF(KFA.LE.100) GOTO 120 | |
37162 | NFORD=NFORD+1 | |
37163 | DO 100 I1=NFORD-1,0,-1 | |
37164 | IF(KFA.GE.KFORD(I1)) GOTO 110 | |
37165 | KFORD(I1+1)=KFORD(I1) | |
37166 | KCORD(I1+1)=KCORD(I1) | |
37167 | 100 CONTINUE | |
37168 | 110 KFORD(I1+1)=KFA | |
37169 | KCORD(I1+1)=I | |
37170 | 120 CONTINUE | |
37171 | MSTU(20)=1 | |
37172 | KFLAST=0 | |
37173 | KCLAST=0 | |
37174 | ENDIF | |
37175 | ||
37176 | C...Fast action if same code as in latest call. | |
37177 | IF(KF.EQ.KFLAST) THEN | |
37178 | PYCOMP=KCLAST | |
37179 | RETURN | |
37180 | ENDIF | |
37181 | ||
37182 | C...Starting values. Remove internal diquark flags. | |
37183 | PYCOMP=0 | |
37184 | KFA=IABS(KF) | |
37185 | IF(MOD(KFA/10,10).EQ.0.AND.KFA.LT.100000 | |
37186 | & .AND.MOD(KFA/1000,10).GT.0) KFA=MOD(KFA,10000) | |
37187 | ||
37188 | C...Simple cases: direct translation. | |
37189 | IF(KFA.GT.KFORD(NFORD)) THEN | |
37190 | ELSEIF(KFA.LE.100) THEN | |
37191 | PYCOMP=KFA | |
37192 | ||
37193 | C...Else binary search. | |
37194 | ELSE | |
37195 | IMIN=100 | |
37196 | IMAX=NFORD+1 | |
37197 | 130 IAVG=(IMIN+IMAX)/2 | |
37198 | IF(KFORD(IAVG).GT.KFA) THEN | |
37199 | IMAX=IAVG | |
37200 | IF(IMAX.GT.IMIN+1) GOTO 130 | |
37201 | ELSEIF(KFORD(IAVG).LT.KFA) THEN | |
37202 | IMIN=IAVG | |
37203 | IF(IMAX.GT.IMIN+1) GOTO 130 | |
37204 | ELSE | |
37205 | PYCOMP=KCORD(IAVG) | |
37206 | ENDIF | |
37207 | ENDIF | |
37208 | ||
37209 | C...Check if antiparticle allowed. | |
37210 | IF(PYCOMP.NE.0.AND.KF.LT.0) THEN | |
37211 | IF(KCHG(PYCOMP,3).EQ.0) PYCOMP=0 | |
37212 | ENDIF | |
37213 | ||
37214 | C...Save codes for possible future fast action. | |
37215 | KFLAST=KF | |
37216 | KCLAST=PYCOMP | |
37217 | ||
37218 | RETURN | |
37219 | END | |
37220 | ||
37221 | C********************************************************************* | |
37222 | ||
37223 | C...PYERRM | |
37224 | C...Informs user of errors in program execution. | |
37225 | ||
37226 | SUBROUTINE PYERRM(MERR,CHMESS) | |
37227 | ||
37228 | C...Double precision and integer declarations. | |
37229 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37230 | INTEGER PYK,PYCHGE,PYCOMP | |
37231 | C...Commonblocks. | |
37232 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
37233 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37234 | SAVE /PYJETS/,/PYDAT1/ | |
37235 | C...Local character variable. | |
37236 | CHARACTER CHMESS*(*) | |
37237 | ||
37238 | C...Write first few warnings, then be silent. | |
37239 | IF(MERR.LE.10) THEN | |
37240 | MSTU(27)=MSTU(27)+1 | |
37241 | MSTU(28)=MERR | |
37242 | IF(MSTU(25).EQ.1.AND.MSTU(27).LE.MSTU(26)) WRITE(MSTU(11),5000) | |
37243 | & MERR,MSTU(31),CHMESS | |
37244 | ||
37245 | C...Write first few errors, then be silent or stop program. | |
37246 | ELSEIF(MERR.LE.20) THEN | |
37247 | MSTU(23)=MSTU(23)+1 | |
37248 | MSTU(24)=MERR-10 | |
37249 | IF(MSTU(21).GE.1.AND.MSTU(23).LE.MSTU(22)) WRITE(MSTU(11),5100) | |
37250 | & MERR-10,MSTU(31),CHMESS | |
37251 | IF(MSTU(21).GE.2.AND.MSTU(23).GT.MSTU(22)) THEN | |
37252 | WRITE(MSTU(11),5100) MERR-10,MSTU(31),CHMESS | |
37253 | WRITE(MSTU(11),5200) | |
37254 | IF(MERR.NE.17) CALL PYLIST(2) | |
37255 | STOP | |
37256 | ENDIF | |
37257 | ||
37258 | C...Stop program in case of irreparable error. | |
37259 | ELSE | |
37260 | WRITE(MSTU(11),5300) MERR-20,MSTU(31),CHMESS | |
37261 | STOP | |
37262 | ENDIF | |
37263 | ||
37264 | C...Formats for output. | |
37265 | 5000 FORMAT(/5X,'Advisory warning type',I2,' given after',I9, | |
37266 | &' PYEXEC calls:'/5X,A) | |
37267 | 5100 FORMAT(/5X,'Error type',I2,' has occured after',I9, | |
37268 | &' PYEXEC calls:'/5X,A) | |
37269 | 5200 FORMAT(5X,'Execution will be stopped after listing of last ', | |
37270 | &'event!') | |
37271 | 5300 FORMAT(/5X,'Fatal error type',I2,' has occured after',I9, | |
37272 | &' PYEXEC calls:'/5X,A/5X,'Execution will now be stopped!') | |
37273 | ||
37274 | RETURN | |
37275 | END | |
37276 | ||
37277 | C********************************************************************* | |
37278 | ||
37279 | C...PYALEM | |
37280 | C...Calculates the running alpha_electromagnetic. | |
37281 | ||
37282 | FUNCTION PYALEM(Q2) | |
37283 | ||
37284 | C...Double precision and integer declarations. | |
37285 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37286 | INTEGER PYK,PYCHGE,PYCOMP | |
37287 | C...Commonblocks. | |
37288 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37289 | SAVE /PYDAT1/ | |
37290 | ||
37291 | C...Calculate real part of photon vacuum polarization. | |
37292 | C...For leptons simplify by using asymptotic (Q^2 >> m^2) expressions. | |
37293 | C...For hadrons use parametrization of H. Burkhardt et al. | |
37294 | C...See R. Kleiss et al, CERN 89-08, vol. 3, pp. 129-131. | |
37295 | AEMPI=PARU(101)/(3D0*PARU(1)) | |
37296 | IF(MSTU(101).LE.0.OR.Q2.LT.2D-6) THEN | |
37297 | RPIGG=0D0 | |
37298 | ELSEIF(MSTU(101).EQ.2.AND.Q2.LT.PARU(104)) THEN | |
37299 | RPIGG=0D0 | |
37300 | ELSEIF(MSTU(101).EQ.2) THEN | |
37301 | RPIGG=1D0-PARU(101)/PARU(103) | |
37302 | ELSEIF(Q2.LT.0.09D0) THEN | |
37303 | RPIGG=AEMPI*(13.4916D0+LOG(Q2))+0.00835D0*LOG(1D0+Q2) | |
37304 | ELSEIF(Q2.LT.9D0) THEN | |
37305 | RPIGG=AEMPI*(16.3200D0+2D0*LOG(Q2))+ | |
37306 | & 0.00238D0*LOG(1D0+3.927D0*Q2) | |
37307 | ELSEIF(Q2.LT.1D4) THEN | |
37308 | RPIGG=AEMPI*(13.4955D0+3D0*LOG(Q2))+0.00165D0+ | |
37309 | & 0.00299D0*LOG(1D0+Q2) | |
37310 | ELSE | |
37311 | RPIGG=AEMPI*(13.4955D0+3D0*LOG(Q2))+0.00221D0+ | |
37312 | & 0.00293D0*LOG(1D0+Q2) | |
37313 | ENDIF | |
37314 | ||
37315 | C...Calculate running alpha_em. | |
37316 | PYALEM=PARU(101)/(1D0-RPIGG) | |
37317 | PARU(108)=PYALEM | |
37318 | ||
37319 | RETURN | |
37320 | END | |
37321 | ||
37322 | C********************************************************************* | |
37323 | ||
37324 | C...PYALPS | |
37325 | C...Gives the value of alpha_strong. | |
37326 | ||
37327 | FUNCTION PYALPS(Q2) | |
37328 | ||
37329 | C...Double precision and integer declarations. | |
37330 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37331 | INTEGER PYK,PYCHGE,PYCOMP | |
37332 | C...Commonblocks. | |
37333 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37334 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37335 | SAVE /PYDAT1/,/PYDAT2/ | |
37336 | ||
37337 | C...Constant alpha_strong trivial. Pick artificial Lambda. | |
37338 | IF(MSTU(111).LE.0) THEN | |
37339 | PYALPS=PARU(111) | |
37340 | MSTU(118)=MSTU(112) | |
37341 | PARU(117)=0.2D0 | |
37342 | IF(Q2.GT.0.04D0) PARU(117)=SQRT(Q2)*EXP(-6D0*PARU(1)/ | |
37343 | & ((33D0-2D0*MSTU(112))*PARU(111))) | |
37344 | PARU(118)=PARU(111) | |
37345 | RETURN | |
37346 | ENDIF | |
37347 | ||
37348 | C...Find effective Q2, number of flavours and Lambda. | |
37349 | Q2EFF=Q2 | |
37350 | IF(MSTU(115).GE.2) Q2EFF=MAX(Q2,PARU(114)) | |
37351 | NF=MSTU(112) | |
37352 | ALAM2=PARU(112)**2 | |
37353 | 100 IF(NF.GT.MAX(2,MSTU(113))) THEN | |
37354 | Q2THR=PARU(113)*PMAS(NF,1)**2 | |
37355 | IF(Q2EFF.LT.Q2THR) THEN | |
37356 | NF=NF-1 | |
37357 | ALAM2=ALAM2*(Q2THR/ALAM2)**(2D0/(33D0-2D0*NF)) | |
37358 | GOTO 100 | |
37359 | ENDIF | |
37360 | ENDIF | |
37361 | 110 IF(NF.LT.MIN(8,MSTU(114))) THEN | |
37362 | Q2THR=PARU(113)*PMAS(NF+1,1)**2 | |
37363 | IF(Q2EFF.GT.Q2THR) THEN | |
37364 | NF=NF+1 | |
37365 | ALAM2=ALAM2*(ALAM2/Q2THR)**(2D0/(33D0-2D0*NF)) | |
37366 | GOTO 110 | |
37367 | ENDIF | |
37368 | ENDIF | |
37369 | IF(MSTU(115).EQ.1) Q2EFF=Q2EFF+ALAM2 | |
37370 | PARU(117)=SQRT(ALAM2) | |
37371 | ||
37372 | C...Evaluate first or second order alpha_strong. | |
37373 | B0=(33D0-2D0*NF)/6D0 | |
37374 | ALGQ=LOG(MAX(1.0001D0,Q2EFF/ALAM2)) | |
37375 | IF(MSTU(111).EQ.1) THEN | |
37376 | PYALPS=MIN(PARU(115),PARU(2)/(B0*ALGQ)) | |
37377 | ELSE | |
37378 | B1=(153D0-19D0*NF)/6D0 | |
37379 | PYALPS=MIN(PARU(115),PARU(2)/(B0*ALGQ)*(1D0-B1*LOG(ALGQ)/ | |
37380 | & (B0**2*ALGQ))) | |
37381 | ENDIF | |
37382 | MSTU(118)=NF | |
37383 | PARU(118)=PYALPS | |
37384 | ||
37385 | RETURN | |
37386 | END | |
37387 | ||
37388 | C********************************************************************* | |
37389 | ||
37390 | C...PYANGL | |
37391 | C...Reconstructs an angle from given x and y coordinates. | |
37392 | ||
37393 | FUNCTION PYANGL(X,Y) | |
37394 | ||
37395 | C...Double precision and integer declarations. | |
37396 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37397 | INTEGER PYK,PYCHGE,PYCOMP | |
37398 | C...Commonblocks. | |
37399 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37400 | SAVE /PYDAT1/ | |
37401 | ||
37402 | PYANGL=0D0 | |
37403 | R=SQRT(X**2+Y**2) | |
37404 | IF(R.LT.1D-20) RETURN | |
37405 | IF(ABS(X)/R.LT.0.8D0) THEN | |
37406 | PYANGL=SIGN(ACOS(X/R),Y) | |
37407 | ELSE | |
37408 | PYANGL=ASIN(Y/R) | |
37409 | IF(X.LT.0D0.AND.PYANGL.GE.0D0) THEN | |
37410 | PYANGL=PARU(1)-PYANGL | |
37411 | ELSEIF(X.LT.0D0) THEN | |
37412 | PYANGL=-PARU(1)-PYANGL | |
37413 | ENDIF | |
37414 | ENDIF | |
37415 | ||
37416 | RETURN | |
37417 | END | |
37418 | ||
37419 | C********************************************************************* | |
37420 | ||
37421 | C...PYR | |
37422 | C...Generates random numbers uniformly distributed between | |
37423 | C...0 and 1, excluding the endpoints. | |
37424 | ||
37425 | **sr renamed for use of internal dpmjet3 random number generator | |
37426 | FUNCTION XPYR(IDUMMY) | |
37427 | ** | |
37428 | ||
37429 | C...Double precision and integer declarations. | |
37430 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37431 | INTEGER PYK,PYCHGE,PYCOMP | |
37432 | C...Commonblocks. | |
37433 | COMMON/PYDATR/MRPY(6),RRPY(100) | |
37434 | SAVE /PYDATR/ | |
37435 | C...Equivalence between commonblock and local variables. | |
37436 | EQUIVALENCE (MRPY1,MRPY(1)),(MRPY2,MRPY(2)),(MRPY3,MRPY(3)), | |
37437 | &(MRPY4,MRPY(4)),(MRPY5,MRPY(5)),(MRPY6,MRPY(6)), | |
37438 | &(RRPY98,RRPY(98)),(RRPY99,RRPY(99)),(RRPY00,RRPY(100)) | |
37439 | ||
37440 | C...Initialize generation from given seed. | |
37441 | IF(MRPY2.EQ.0) THEN | |
37442 | IJ=MOD(MRPY1/30082,31329) | |
37443 | KL=MOD(MRPY1,30082) | |
37444 | I=MOD(IJ/177,177)+2 | |
37445 | J=MOD(IJ,177)+2 | |
37446 | K=MOD(KL/169,178)+1 | |
37447 | L=MOD(KL,169) | |
37448 | DO 110 II=1,97 | |
37449 | S=0D0 | |
37450 | T=0.5D0 | |
37451 | DO 100 JJ=1,48 | |
37452 | M=MOD(MOD(I*J,179)*K,179) | |
37453 | I=J | |
37454 | J=K | |
37455 | K=M | |
37456 | L=MOD(53*L+1,169) | |
37457 | IF(MOD(L*M,64).GE.32) S=S+T | |
37458 | T=0.5D0*T | |
37459 | 100 CONTINUE | |
37460 | RRPY(II)=S | |
37461 | 110 CONTINUE | |
37462 | TWOM24=1D0 | |
37463 | DO 120 I24=1,24 | |
37464 | TWOM24=0.5D0*TWOM24 | |
37465 | 120 CONTINUE | |
37466 | RRPY98=362436D0*TWOM24 | |
37467 | RRPY99=7654321D0*TWOM24 | |
37468 | RRPY00=16777213D0*TWOM24 | |
37469 | MRPY2=1 | |
37470 | MRPY3=0 | |
37471 | MRPY4=97 | |
37472 | MRPY5=33 | |
37473 | ENDIF | |
37474 | ||
37475 | C...Generate next random number. | |
37476 | 130 RUNI=RRPY(MRPY4)-RRPY(MRPY5) | |
37477 | IF(RUNI.LT.0D0) RUNI=RUNI+1D0 | |
37478 | RRPY(MRPY4)=RUNI | |
37479 | MRPY4=MRPY4-1 | |
37480 | IF(MRPY4.EQ.0) MRPY4=97 | |
37481 | MRPY5=MRPY5-1 | |
37482 | IF(MRPY5.EQ.0) MRPY5=97 | |
37483 | RRPY98=RRPY98-RRPY99 | |
37484 | IF(RRPY98.LT.0D0) RRPY98=RRPY98+RRPY00 | |
37485 | RUNI=RUNI-RRPY98 | |
37486 | IF(RUNI.LT.0D0) RUNI=RUNI+1D0 | |
37487 | IF(RUNI.LE.0D0.OR.RUNI.GE.1D0) GOTO 130 | |
37488 | ||
37489 | C...Update counters. Random number to output. | |
37490 | MRPY3=MRPY3+1 | |
37491 | IF(MRPY3.EQ.1000000000) THEN | |
37492 | MRPY2=MRPY2+1 | |
37493 | MRPY3=0 | |
37494 | ENDIF | |
37495 | PYR=RUNI | |
37496 | ||
37497 | RETURN | |
37498 | END | |
37499 | ||
37500 | C********************************************************************* | |
37501 | ||
37502 | C...PYRGET | |
37503 | C...Dumps the state of the random number generator on a file | |
37504 | C...for subsequent startup from this state onwards. | |
37505 | ||
37506 | SUBROUTINE PYRGET(LFN,MOVE) | |
37507 | ||
37508 | C...Double precision and integer declarations. | |
37509 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37510 | INTEGER PYK,PYCHGE,PYCOMP | |
37511 | C...Commonblocks. | |
37512 | COMMON/PYDATR/MRPY(6),RRPY(100) | |
37513 | SAVE /PYDATR/ | |
37514 | C...Local character variable. | |
37515 | CHARACTER CHERR*8 | |
37516 | ||
37517 | C...Backspace required number of records (or as many as there are). | |
37518 | IF(MOVE.LT.0) THEN | |
37519 | NBCK=MIN(MRPY(6),-MOVE) | |
37520 | DO 100 IBCK=1,NBCK | |
37521 | BACKSPACE(LFN,ERR=110,IOSTAT=IERR) | |
37522 | 100 CONTINUE | |
37523 | MRPY(6)=MRPY(6)-NBCK | |
37524 | ENDIF | |
37525 | ||
37526 | C...Unformatted write on unit LFN. | |
37527 | WRITE(LFN,ERR=110,IOSTAT=IERR) (MRPY(I1),I1=1,5), | |
37528 | &(RRPY(I2),I2=1,100) | |
37529 | MRPY(6)=MRPY(6)+1 | |
37530 | RETURN | |
37531 | ||
37532 | C...Write error. | |
37533 | 110 WRITE(CHERR,'(I8)') IERR | |
37534 | CALL PYERRM(18,'(PYRGET:) error when accessing file, IOSTAT ='// | |
37535 | &CHERR) | |
37536 | ||
37537 | RETURN | |
37538 | END | |
37539 | ||
37540 | C********************************************************************* | |
37541 | ||
37542 | C...PYRSET | |
37543 | C...Reads a state of the random number generator from a file | |
37544 | C...for subsequent generation from this state onwards. | |
37545 | ||
37546 | SUBROUTINE PYRSET(LFN,MOVE) | |
37547 | ||
37548 | C...Double precision and integer declarations. | |
37549 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37550 | INTEGER PYK,PYCHGE,PYCOMP | |
37551 | C...Commonblocks. | |
37552 | COMMON/PYDATR/MRPY(6),RRPY(100) | |
37553 | SAVE /PYDATR/ | |
37554 | C...Local character variable. | |
37555 | CHARACTER CHERR*8 | |
37556 | ||
37557 | C...Backspace required number of records (or as many as there are). | |
37558 | IF(MOVE.LT.0) THEN | |
37559 | NBCK=MIN(MRPY(6),-MOVE) | |
37560 | DO 100 IBCK=1,NBCK | |
37561 | BACKSPACE(LFN,ERR=120,IOSTAT=IERR) | |
37562 | 100 CONTINUE | |
37563 | MRPY(6)=MRPY(6)-NBCK | |
37564 | ENDIF | |
37565 | ||
37566 | C...Unformatted read from unit LFN. | |
37567 | NFOR=1+MAX(0,MOVE) | |
37568 | DO 110 IFOR=1,NFOR | |
37569 | READ(LFN,ERR=120,IOSTAT=IERR) (MRPY(I1),I1=1,5), | |
37570 | & (RRPY(I2),I2=1,100) | |
37571 | 110 CONTINUE | |
37572 | MRPY(6)=MRPY(6)+NFOR | |
37573 | RETURN | |
37574 | ||
37575 | C...Write error. | |
37576 | 120 WRITE(CHERR,'(I8)') IERR | |
37577 | CALL PYERRM(18,'(PYRSET:) error when accessing file, IOSTAT ='// | |
37578 | &CHERR) | |
37579 | ||
37580 | RETURN | |
37581 | END | |
37582 | ||
37583 | C********************************************************************* | |
37584 | ||
37585 | C...PYROBO | |
37586 | C...Performs rotations and boosts. | |
37587 | ||
37588 | SUBROUTINE PYROBO(IMI,IMA,THE,PHI,BEX,BEY,BEZ) | |
37589 | ||
37590 | C...Double precision and integer declarations. | |
37591 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37592 | INTEGER PYK,PYCHGE,PYCOMP | |
37593 | C...Commonblocks. | |
37594 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
37595 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37596 | SAVE /PYJETS/,/PYDAT1/ | |
37597 | C...Local arrays. | |
37598 | DIMENSION ROT(3,3),PR(3),VR(3),DP(4),DV(4) | |
37599 | ||
37600 | C...Find and check range of rotation/boost. | |
37601 | IMIN=IMI | |
37602 | IF(IMIN.LE.0) IMIN=1 | |
37603 | IF(MSTU(1).GT.0) IMIN=MSTU(1) | |
37604 | IMAX=IMA | |
37605 | IF(IMAX.LE.0) IMAX=N | |
37606 | IF(MSTU(2).GT.0) IMAX=MSTU(2) | |
37607 | IF(IMIN.GT.MSTU(4).OR.IMAX.GT.MSTU(4)) THEN | |
37608 | CALL PYERRM(11,'(PYROBO:) range outside PYJETS memory') | |
37609 | RETURN | |
37610 | ENDIF | |
37611 | ||
37612 | C...Optional resetting of V (when not set before.) | |
37613 | IF(MSTU(33).NE.0) THEN | |
37614 | DO 110 I=MIN(IMIN,MSTU(4)),MIN(IMAX,MSTU(4)) | |
37615 | DO 100 J=1,5 | |
37616 | V(I,J)=0D0 | |
37617 | 100 CONTINUE | |
37618 | 110 CONTINUE | |
37619 | MSTU(33)=0 | |
37620 | ENDIF | |
37621 | ||
37622 | C...Rotate, typically from z axis to direction (theta,phi). | |
37623 | IF(THE**2+PHI**2.GT.1D-20) THEN | |
37624 | ROT(1,1)=COS(THE)*COS(PHI) | |
37625 | ROT(1,2)=-SIN(PHI) | |
37626 | ROT(1,3)=SIN(THE)*COS(PHI) | |
37627 | ROT(2,1)=COS(THE)*SIN(PHI) | |
37628 | ROT(2,2)=COS(PHI) | |
37629 | ROT(2,3)=SIN(THE)*SIN(PHI) | |
37630 | ROT(3,1)=-SIN(THE) | |
37631 | ROT(3,2)=0D0 | |
37632 | ROT(3,3)=COS(THE) | |
37633 | DO 140 I=IMIN,IMAX | |
37634 | IF(K(I,1).LE.0) GOTO 140 | |
37635 | DO 120 J=1,3 | |
37636 | PR(J)=P(I,J) | |
37637 | VR(J)=V(I,J) | |
37638 | 120 CONTINUE | |
37639 | DO 130 J=1,3 | |
37640 | P(I,J)=ROT(J,1)*PR(1)+ROT(J,2)*PR(2)+ROT(J,3)*PR(3) | |
37641 | V(I,J)=ROT(J,1)*VR(1)+ROT(J,2)*VR(2)+ROT(J,3)*VR(3) | |
37642 | 130 CONTINUE | |
37643 | 140 CONTINUE | |
37644 | ENDIF | |
37645 | ||
37646 | C...Boost, typically from rest to momentum/energy=beta. | |
37647 | IF(BEX**2+BEY**2+BEZ**2.GT.1D-20) THEN | |
37648 | DBX=BEX | |
37649 | DBY=BEY | |
37650 | DBZ=BEZ | |
37651 | DB=SQRT(DBX**2+DBY**2+DBZ**2) | |
37652 | EPS1=1D0-1D-12 | |
37653 | IF(DB.GT.EPS1) THEN | |
37654 | C...Rescale boost vector if too close to unity. | |
37655 | CALL PYERRM(3,'(PYROBO:) boost vector too large') | |
37656 | DBX=DBX*(EPS1/DB) | |
37657 | DBY=DBY*(EPS1/DB) | |
37658 | DBZ=DBZ*(EPS1/DB) | |
37659 | DB=EPS1 | |
37660 | ENDIF | |
37661 | DGA=1D0/SQRT(1D0-DB**2) | |
37662 | DO 160 I=IMIN,IMAX | |
37663 | IF(K(I,1).LE.0) GOTO 160 | |
37664 | DO 150 J=1,4 | |
37665 | DP(J)=P(I,J) | |
37666 | DV(J)=V(I,J) | |
37667 | 150 CONTINUE | |
37668 | DBP=DBX*DP(1)+DBY*DP(2)+DBZ*DP(3) | |
37669 | DGABP=DGA*(DGA*DBP/(1D0+DGA)+DP(4)) | |
37670 | P(I,1)=DP(1)+DGABP*DBX | |
37671 | P(I,2)=DP(2)+DGABP*DBY | |
37672 | P(I,3)=DP(3)+DGABP*DBZ | |
37673 | P(I,4)=DGA*(DP(4)+DBP) | |
37674 | DBV=DBX*DV(1)+DBY*DV(2)+DBZ*DV(3) | |
37675 | DGABV=DGA*(DGA*DBV/(1D0+DGA)+DV(4)) | |
37676 | V(I,1)=DV(1)+DGABV*DBX | |
37677 | V(I,2)=DV(2)+DGABV*DBY | |
37678 | V(I,3)=DV(3)+DGABV*DBZ | |
37679 | V(I,4)=DGA*(DV(4)+DBV) | |
37680 | 160 CONTINUE | |
37681 | ENDIF | |
37682 | ||
37683 | RETURN | |
37684 | END | |
37685 | ||
37686 | C********************************************************************* | |
37687 | ||
37688 | C...PYEDIT | |
37689 | C...Performs global manipulations on the event record, in particular | |
37690 | C...to exclude unstable or undetectable partons/particles. | |
37691 | ||
37692 | SUBROUTINE PYEDIT(MEDIT) | |
37693 | ||
37694 | C...Double precision and integer declarations. | |
37695 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37696 | INTEGER PYK,PYCHGE,PYCOMP | |
37697 | C...Commonblocks. | |
37698 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
37699 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37700 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37701 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
37702 | C...Local arrays. | |
37703 | DIMENSION NS(2),PTS(2),PLS(2) | |
37704 | ||
37705 | C...Remove unwanted partons/particles. | |
37706 | IF((MEDIT.GE.0.AND.MEDIT.LE.3).OR.MEDIT.EQ.5) THEN | |
37707 | IMAX=N | |
37708 | IF(MSTU(2).GT.0) IMAX=MSTU(2) | |
37709 | I1=MAX(1,MSTU(1))-1 | |
37710 | DO 110 I=MAX(1,MSTU(1)),IMAX | |
37711 | IF(K(I,1).EQ.0.OR.K(I,1).GT.20) GOTO 110 | |
37712 | IF(MEDIT.EQ.1) THEN | |
37713 | IF(K(I,1).GT.10) GOTO 110 | |
37714 | ELSEIF(MEDIT.EQ.2) THEN | |
37715 | IF(K(I,1).GT.10) GOTO 110 | |
37716 | KC=PYCOMP(K(I,2)) | |
37717 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR.KC.EQ.18) | |
37718 | & GOTO 110 | |
37719 | ELSEIF(MEDIT.EQ.3) THEN | |
37720 | IF(K(I,1).GT.10) GOTO 110 | |
37721 | KC=PYCOMP(K(I,2)) | |
37722 | IF(KC.EQ.0) GOTO 110 | |
37723 | IF(KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) GOTO 110 | |
37724 | ELSEIF(MEDIT.EQ.5) THEN | |
37725 | IF(K(I,1).EQ.13.OR.K(I,1).EQ.14) GOTO 110 | |
37726 | KC=PYCOMP(K(I,2)) | |
37727 | IF(KC.EQ.0) GOTO 110 | |
37728 | IF(K(I,1).GE.11.AND.KCHG(KC,2).EQ.0) GOTO 110 | |
37729 | ENDIF | |
37730 | ||
37731 | C...Pack remaining partons/particles. Origin no longer known. | |
37732 | I1=I1+1 | |
37733 | DO 100 J=1,5 | |
37734 | K(I1,J)=K(I,J) | |
37735 | P(I1,J)=P(I,J) | |
37736 | V(I1,J)=V(I,J) | |
37737 | 100 CONTINUE | |
37738 | K(I1,3)=0 | |
37739 | 110 CONTINUE | |
37740 | IF(I1.LT.N) MSTU(3)=0 | |
37741 | IF(I1.LT.N) MSTU(70)=0 | |
37742 | N=I1 | |
37743 | ||
37744 | C...Selective removal of class of entries. New position of retained. | |
37745 | ELSEIF(MEDIT.GE.11.AND.MEDIT.LE.15) THEN | |
37746 | I1=0 | |
37747 | DO 120 I=1,N | |
37748 | K(I,3)=MOD(K(I,3),MSTU(5)) | |
37749 | IF(MEDIT.EQ.11.AND.K(I,1).LT.0) GOTO 120 | |
37750 | IF(MEDIT.EQ.12.AND.K(I,1).EQ.0) GOTO 120 | |
37751 | IF(MEDIT.EQ.13.AND.(K(I,1).EQ.11.OR.K(I,1).EQ.12.OR. | |
37752 | & K(I,1).EQ.15).AND.K(I,2).NE.94) GOTO 120 | |
37753 | IF(MEDIT.EQ.14.AND.(K(I,1).EQ.13.OR.K(I,1).EQ.14.OR. | |
37754 | & K(I,2).EQ.94)) GOTO 120 | |
37755 | IF(MEDIT.EQ.15.AND.K(I,1).GE.21) GOTO 120 | |
37756 | I1=I1+1 | |
37757 | K(I,3)=K(I,3)+MSTU(5)*I1 | |
37758 | 120 CONTINUE | |
37759 | ||
37760 | C...Find new event history information and replace old. | |
37761 | DO 140 I=1,N | |
37762 | IF(K(I,1).LE.0.OR.K(I,1).GT.20.OR.K(I,3)/MSTU(5).EQ.0) | |
37763 | & GOTO 140 | |
37764 | ID=I | |
37765 | 130 IM=MOD(K(ID,3),MSTU(5)) | |
37766 | IF(MEDIT.EQ.13.AND.IM.GT.0.AND.IM.LE.N) THEN | |
37767 | IF((K(IM,1).EQ.11.OR.K(IM,1).EQ.12.OR.K(IM,1).EQ.15).AND. | |
37768 | & K(IM,2).NE.94) THEN | |
37769 | ID=IM | |
37770 | GOTO 130 | |
37771 | ENDIF | |
37772 | ELSEIF(MEDIT.EQ.14.AND.IM.GT.0.AND.IM.LE.N) THEN | |
37773 | IF(K(IM,1).EQ.13.OR.K(IM,1).EQ.14.OR.K(IM,2).EQ.94) THEN | |
37774 | ID=IM | |
37775 | GOTO 130 | |
37776 | ENDIF | |
37777 | ENDIF | |
37778 | K(I,3)=MSTU(5)*(K(I,3)/MSTU(5)) | |
37779 | IF(IM.NE.0) K(I,3)=K(I,3)+K(IM,3)/MSTU(5) | |
37780 | IF(K(I,1).NE.3.AND.K(I,1).NE.13.AND.K(I,1).NE.14) THEN | |
37781 | IF(K(I,4).GT.0.AND.K(I,4).LE.MSTU(4)) K(I,4)= | |
37782 | & K(K(I,4),3)/MSTU(5) | |
37783 | IF(K(I,5).GT.0.AND.K(I,5).LE.MSTU(4)) K(I,5)= | |
37784 | & K(K(I,5),3)/MSTU(5) | |
37785 | ELSE | |
37786 | KCM=MOD(K(I,4)/MSTU(5),MSTU(5)) | |
37787 | IF(KCM.GT.0.AND.KCM.LE.MSTU(4)) KCM=K(KCM,3)/MSTU(5) | |
37788 | KCD=MOD(K(I,4),MSTU(5)) | |
37789 | IF(KCD.GT.0.AND.KCD.LE.MSTU(4)) KCD=K(KCD,3)/MSTU(5) | |
37790 | K(I,4)=MSTU(5)**2*(K(I,4)/MSTU(5)**2)+MSTU(5)*KCM+KCD | |
37791 | KCM=MOD(K(I,5)/MSTU(5),MSTU(5)) | |
37792 | IF(KCM.GT.0.AND.KCM.LE.MSTU(4)) KCM=K(KCM,3)/MSTU(5) | |
37793 | KCD=MOD(K(I,5),MSTU(5)) | |
37794 | IF(KCD.GT.0.AND.KCD.LE.MSTU(4)) KCD=K(KCD,3)/MSTU(5) | |
37795 | K(I,5)=MSTU(5)**2*(K(I,5)/MSTU(5)**2)+MSTU(5)*KCM+KCD | |
37796 | ENDIF | |
37797 | 140 CONTINUE | |
37798 | ||
37799 | C...Pack remaining entries. | |
37800 | I1=0 | |
37801 | MSTU90=MSTU(90) | |
37802 | MSTU(90)=0 | |
37803 | DO 170 I=1,N | |
37804 | IF(K(I,3)/MSTU(5).EQ.0) GOTO 170 | |
37805 | I1=I1+1 | |
37806 | DO 150 J=1,5 | |
37807 | K(I1,J)=K(I,J) | |
37808 | P(I1,J)=P(I,J) | |
37809 | V(I1,J)=V(I,J) | |
37810 | 150 CONTINUE | |
37811 | K(I1,3)=MOD(K(I1,3),MSTU(5)) | |
37812 | DO 160 IZ=1,MSTU90 | |
37813 | IF(I.EQ.MSTU(90+IZ)) THEN | |
37814 | MSTU(90)=MSTU(90)+1 | |
37815 | MSTU(90+MSTU(90))=I1 | |
37816 | PARU(90+MSTU(90))=PARU(90+IZ) | |
37817 | ENDIF | |
37818 | 160 CONTINUE | |
37819 | 170 CONTINUE | |
37820 | IF(I1.LT.N) MSTU(3)=0 | |
37821 | IF(I1.LT.N) MSTU(70)=0 | |
37822 | N=I1 | |
37823 | ||
37824 | C...Fill in some missing daughter pointers (lost in colour flow). | |
37825 | ELSEIF(MEDIT.EQ.16) THEN | |
37826 | DO 220 I=1,N | |
37827 | IF(K(I,1).LE.10.OR.K(I,1).GT.20) GOTO 220 | |
37828 | IF(K(I,4).NE.0.OR.K(I,5).NE.0) GOTO 220 | |
37829 | C...Find daughters who point to mother. | |
37830 | DO 180 I1=I+1,N | |
37831 | IF(K(I1,3).NE.I) THEN | |
37832 | ELSEIF(K(I,4).EQ.0) THEN | |
37833 | K(I,4)=I1 | |
37834 | ELSE | |
37835 | K(I,5)=I1 | |
37836 | ENDIF | |
37837 | 180 CONTINUE | |
37838 | IF(K(I,5).EQ.0) K(I,5)=K(I,4) | |
37839 | IF(K(I,4).NE.0) GOTO 220 | |
37840 | C...Find daughters who point to documentation version of mother. | |
37841 | IM=K(I,3) | |
37842 | IF(IM.LE.0.OR.IM.GE.I) GOTO 220 | |
37843 | IF(K(IM,1).LE.20.OR.K(IM,1).GT.30) GOTO 220 | |
37844 | IF(K(IM,2).NE.K(I,2).OR.ABS(P(IM,5)-P(I,5)).GT.1D-2) GOTO 220 | |
37845 | DO 190 I1=I+1,N | |
37846 | IF(K(I1,3).NE.IM) THEN | |
37847 | ELSEIF(K(I,4).EQ.0) THEN | |
37848 | K(I,4)=I1 | |
37849 | ELSE | |
37850 | K(I,5)=I1 | |
37851 | ENDIF | |
37852 | 190 CONTINUE | |
37853 | IF(K(I,5).EQ.0) K(I,5)=K(I,4) | |
37854 | IF(K(I,4).NE.0) GOTO 220 | |
37855 | C...Find daughters who point to documentation daughters who, | |
37856 | C...in their turn, point to documentation mother. | |
37857 | ID1=IM | |
37858 | ID2=IM | |
37859 | DO 200 I1=IM+1,I-1 | |
37860 | IF(K(I1,3).EQ.IM.AND.K(I1,1).GT.20.AND.K(I1,1).LE.30) THEN | |
37861 | ID2=I1 | |
37862 | IF(ID1.EQ.IM) ID1=I1 | |
37863 | ENDIF | |
37864 | 200 CONTINUE | |
37865 | DO 210 I1=I+1,N | |
37866 | IF(K(I1,3).NE.ID1.AND.K(I1,3).NE.ID2) THEN | |
37867 | ELSEIF(K(I,4).EQ.0) THEN | |
37868 | K(I,4)=I1 | |
37869 | ELSE | |
37870 | K(I,5)=I1 | |
37871 | ENDIF | |
37872 | 210 CONTINUE | |
37873 | IF(K(I,5).EQ.0) K(I,5)=K(I,4) | |
37874 | 220 CONTINUE | |
37875 | ||
37876 | C...Save top entries at bottom of PYJETS commonblock. | |
37877 | ELSEIF(MEDIT.EQ.21) THEN | |
37878 | IF(2*N.GE.MSTU(4)) THEN | |
37879 | CALL PYERRM(11,'(PYEDIT:) no more memory left in PYJETS') | |
37880 | RETURN | |
37881 | ENDIF | |
37882 | DO 240 I=1,N | |
37883 | DO 230 J=1,5 | |
37884 | K(MSTU(4)-I,J)=K(I,J) | |
37885 | P(MSTU(4)-I,J)=P(I,J) | |
37886 | V(MSTU(4)-I,J)=V(I,J) | |
37887 | 230 CONTINUE | |
37888 | 240 CONTINUE | |
37889 | MSTU(32)=N | |
37890 | ||
37891 | C...Restore bottom entries of commonblock PYJETS to top. | |
37892 | ELSEIF(MEDIT.EQ.22) THEN | |
37893 | DO 260 I=1,MSTU(32) | |
37894 | DO 250 J=1,5 | |
37895 | K(I,J)=K(MSTU(4)-I,J) | |
37896 | P(I,J)=P(MSTU(4)-I,J) | |
37897 | V(I,J)=V(MSTU(4)-I,J) | |
37898 | 250 CONTINUE | |
37899 | 260 CONTINUE | |
37900 | N=MSTU(32) | |
37901 | ||
37902 | C...Mark primary entries at top of commonblock PYJETS as untreated. | |
37903 | ELSEIF(MEDIT.EQ.23) THEN | |
37904 | I1=0 | |
37905 | DO 270 I=1,N | |
37906 | KH=K(I,3) | |
37907 | IF(KH.GE.1) THEN | |
37908 | IF(K(KH,1).GT.20) KH=0 | |
37909 | ENDIF | |
37910 | IF(KH.NE.0) GOTO 280 | |
37911 | I1=I1+1 | |
37912 | IF(K(I,1).GT.10.AND.K(I,1).LE.20) K(I,1)=K(I,1)-10 | |
37913 | 270 CONTINUE | |
37914 | 280 N=I1 | |
37915 | ||
37916 | C...Place largest axis along z axis and second largest in xy plane. | |
37917 | ELSEIF(MEDIT.EQ.31.OR.MEDIT.EQ.32) THEN | |
37918 | CALL PYROBO(1,N+MSTU(3),0D0,-PYANGL(P(MSTU(61),1), | |
37919 | & P(MSTU(61),2)),0D0,0D0,0D0) | |
37920 | CALL PYROBO(1,N+MSTU(3),-PYANGL(P(MSTU(61),3), | |
37921 | & P(MSTU(61),1)),0D0,0D0,0D0,0D0) | |
37922 | CALL PYROBO(1,N+MSTU(3),0D0,-PYANGL(P(MSTU(61)+1,1), | |
37923 | & P(MSTU(61)+1,2)),0D0,0D0,0D0) | |
37924 | IF(MEDIT.EQ.31) RETURN | |
37925 | ||
37926 | C...Rotate to put slim jet along +z axis. | |
37927 | DO 290 IS=1,2 | |
37928 | NS(IS)=0 | |
37929 | PTS(IS)=0D0 | |
37930 | PLS(IS)=0D0 | |
37931 | 290 CONTINUE | |
37932 | DO 300 I=1,N | |
37933 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 300 | |
37934 | IF(MSTU(41).GE.2) THEN | |
37935 | KC=PYCOMP(K(I,2)) | |
37936 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
37937 | & KC.EQ.18) GOTO 300 | |
37938 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)) | |
37939 | & .EQ.0) GOTO 300 | |
37940 | ENDIF | |
37941 | IS=2D0-SIGN(0.5D0,P(I,3)) | |
37942 | NS(IS)=NS(IS)+1 | |
37943 | PTS(IS)=PTS(IS)+SQRT(P(I,1)**2+P(I,2)**2) | |
37944 | 300 CONTINUE | |
37945 | IF(NS(1)*PTS(2)**2.LT.NS(2)*PTS(1)**2) | |
37946 | & CALL PYROBO(1,N+MSTU(3),PARU(1),0D0,0D0,0D0,0D0) | |
37947 | ||
37948 | C...Rotate to put second largest jet into -z,+x quadrant. | |
37949 | DO 310 I=1,N | |
37950 | IF(P(I,3).GE.0D0) GOTO 310 | |
37951 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 310 | |
37952 | IF(MSTU(41).GE.2) THEN | |
37953 | KC=PYCOMP(K(I,2)) | |
37954 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
37955 | & KC.EQ.18) GOTO 310 | |
37956 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)) | |
37957 | & .EQ.0) GOTO 310 | |
37958 | ENDIF | |
37959 | IS=2D0-SIGN(0.5D0,P(I,1)) | |
37960 | PLS(IS)=PLS(IS)-P(I,3) | |
37961 | 310 CONTINUE | |
37962 | IF(PLS(2).GT.PLS(1)) CALL PYROBO(1,N+MSTU(3),0D0,PARU(1), | |
37963 | & 0D0,0D0,0D0) | |
37964 | ENDIF | |
37965 | ||
37966 | RETURN | |
37967 | END | |
37968 | ||
37969 | C********************************************************************* | |
37970 | ||
37971 | C...PYLIST | |
37972 | C...Gives program heading, or lists an event, or particle | |
37973 | C...data, or current parameter values. | |
37974 | ||
37975 | SUBROUTINE PYLIST(MLIST) | |
37976 | ||
37977 | C...Double precision and integer declarations. | |
37978 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
37979 | INTEGER PYK,PYCHGE,PYCOMP | |
37980 | C...Parameter statement to help give large particle numbers. | |
37981 | PARAMETER (KSUSY1=1000000,KSUSY2=2000000,KEXCIT=4000000) | |
37982 | C...Commonblocks. | |
37983 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
37984 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
37985 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
37986 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
37987 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/ | |
37988 | C...Local arrays, character variables and data. | |
37989 | CHARACTER CHAP*16,CHAC*16,CHAN*16,CHAD(5)*16,CHDL(7)*4 | |
37990 | DIMENSION PS(6) | |
37991 | DATA CHDL/'(())',' ','()','!!','<>','==','(==)'/ | |
37992 | ||
37993 | C...Initialization printout: version number and date of last change. | |
37994 | IF(MLIST.EQ.0.OR.MSTU(12).EQ.1) THEN | |
37995 | CALL PYLOGO | |
37996 | MSTU(12)=0 | |
37997 | IF(MLIST.EQ.0) RETURN | |
37998 | ENDIF | |
37999 | ||
38000 | C...List event data, including additional lines after N. | |
38001 | IF(MLIST.GE.1.AND.MLIST.LE.3) THEN | |
38002 | IF(MLIST.EQ.1) WRITE(MSTU(11),5100) | |
38003 | IF(MLIST.EQ.2) WRITE(MSTU(11),5200) | |
38004 | IF(MLIST.EQ.3) WRITE(MSTU(11),5300) | |
38005 | LMX=12 | |
38006 | IF(MLIST.GE.2) LMX=16 | |
38007 | ISTR=0 | |
38008 | IMAX=N | |
38009 | IF(MSTU(2).GT.0) IMAX=MSTU(2) | |
38010 | DO 120 I=MAX(1,MSTU(1)),MAX(IMAX,N+MAX(0,MSTU(3))) | |
38011 | IF((I.GT.IMAX.AND.I.LE.N).OR.K(I,1).LT.0) GOTO 120 | |
38012 | ||
38013 | C...Get particle name, pad it and check it is not too long. | |
38014 | CALL PYNAME(K(I,2),CHAP) | |
38015 | LEN=0 | |
38016 | DO 100 LEM=1,16 | |
38017 | IF(CHAP(LEM:LEM).NE.' ') LEN=LEM | |
38018 | 100 CONTINUE | |
38019 | MDL=(K(I,1)+19)/10 | |
38020 | LDL=0 | |
38021 | IF(MDL.EQ.2.OR.MDL.GE.8) THEN | |
38022 | CHAC=CHAP | |
38023 | IF(LEN.GT.LMX) CHAC(LMX:LMX)='?' | |
38024 | ELSE | |
38025 | LDL=1 | |
38026 | IF(MDL.EQ.1.OR.MDL.EQ.7) LDL=2 | |
38027 | IF(LEN.EQ.0) THEN | |
38028 | CHAC=CHDL(MDL)(1:2*LDL)//' ' | |
38029 | ELSE | |
38030 | CHAC=CHDL(MDL)(1:LDL)//CHAP(1:MIN(LEN,LMX-2*LDL))// | |
38031 | & CHDL(MDL)(LDL+1:2*LDL)//' ' | |
38032 | IF(LEN+2*LDL.GT.LMX) CHAC(LMX:LMX)='?' | |
38033 | ENDIF | |
38034 | ENDIF | |
38035 | ||
38036 | C...Add information on string connection. | |
38037 | IF(K(I,1).EQ.1.OR.K(I,1).EQ.2.OR.K(I,1).EQ.11.OR.K(I,1).EQ.12) | |
38038 | & THEN | |
38039 | KC=PYCOMP(K(I,2)) | |
38040 | KCC=0 | |
38041 | IF(KC.NE.0) KCC=KCHG(KC,2) | |
38042 | IF(IABS(K(I,2)).EQ.39) THEN | |
38043 | IF(LEN+2*LDL+3.LE.LMX) CHAC(LMX-1:LMX-1)='X' | |
38044 | ELSEIF(KCC.NE.0.AND.ISTR.EQ.0) THEN | |
38045 | ISTR=1 | |
38046 | IF(LEN+2*LDL+3.LE.LMX) CHAC(LMX-1:LMX-1)='A' | |
38047 | ELSEIF(KCC.NE.0.AND.(K(I,1).EQ.2.OR.K(I,1).EQ.12)) THEN | |
38048 | IF(LEN+2*LDL+3.LE.LMX) CHAC(LMX-1:LMX-1)='I' | |
38049 | ELSEIF(KCC.NE.0) THEN | |
38050 | ISTR=0 | |
38051 | IF(LEN+2*LDL+3.LE.LMX) CHAC(LMX-1:LMX-1)='V' | |
38052 | ENDIF | |
38053 | ENDIF | |
38054 | ||
38055 | C...Write data for particle/jet. | |
38056 | IF(MLIST.EQ.1.AND.ABS(P(I,4)).LT.9999D0) THEN | |
38057 | WRITE(MSTU(11),5400) I,CHAC(1:12),(K(I,J1),J1=1,3), | |
38058 | & (P(I,J2),J2=1,5) | |
38059 | ELSEIF(MLIST.EQ.1.AND.ABS(P(I,4)).LT.99999D0) THEN | |
38060 | WRITE(MSTU(11),5500) I,CHAC(1:12),(K(I,J1),J1=1,3), | |
38061 | & (P(I,J2),J2=1,5) | |
38062 | ELSEIF(MLIST.EQ.1) THEN | |
38063 | WRITE(MSTU(11),5600) I,CHAC(1:12),(K(I,J1),J1=1,3), | |
38064 | & (P(I,J2),J2=1,5) | |
38065 | ELSEIF(MSTU(5).EQ.10000.AND.(K(I,1).EQ.3.OR.K(I,1).EQ.13.OR. | |
38066 | & K(I,1).EQ.14)) THEN | |
38067 | WRITE(MSTU(11),5700) I,CHAC,(K(I,J1),J1=1,3), | |
38068 | & K(I,4)/100000000,MOD(K(I,4)/10000,10000),MOD(K(I,4),10000), | |
38069 | & K(I,5)/100000000,MOD(K(I,5)/10000,10000),MOD(K(I,5),10000), | |
38070 | & (P(I,J2),J2=1,5) | |
38071 | ELSE | |
38072 | WRITE(MSTU(11),5800) I,CHAC,(K(I,J1),J1=1,5), | |
38073 | & (P(I,J2),J2=1,5) | |
38074 | ENDIF | |
38075 | IF(MLIST.EQ.3) WRITE(MSTU(11),5900) (V(I,J),J=1,5) | |
38076 | ||
38077 | C...Insert extra separator lines specified by user. | |
38078 | IF(MSTU(70).GE.1) THEN | |
38079 | ISEP=0 | |
38080 | DO 110 J=1,MIN(10,MSTU(70)) | |
38081 | IF(I.EQ.MSTU(70+J)) ISEP=1 | |
38082 | 110 CONTINUE | |
38083 | IF(ISEP.EQ.1.AND.MLIST.EQ.1) WRITE(MSTU(11),6000) | |
38084 | IF(ISEP.EQ.1.AND.MLIST.GE.2) WRITE(MSTU(11),6100) | |
38085 | ENDIF | |
38086 | 120 CONTINUE | |
38087 | ||
38088 | C...Sum of charges and momenta. | |
38089 | DO 130 J=1,6 | |
38090 | PS(J)=PYP(0,J) | |
38091 | 130 CONTINUE | |
38092 | IF(MLIST.EQ.1.AND.ABS(PS(4)).LT.9999D0) THEN | |
38093 | WRITE(MSTU(11),6200) PS(6),(PS(J),J=1,5) | |
38094 | ELSEIF(MLIST.EQ.1.AND.ABS(PS(4)).LT.99999D0) THEN | |
38095 | WRITE(MSTU(11),6300) PS(6),(PS(J),J=1,5) | |
38096 | ELSEIF(MLIST.EQ.1) THEN | |
38097 | WRITE(MSTU(11),6400) PS(6),(PS(J),J=1,5) | |
38098 | ELSE | |
38099 | WRITE(MSTU(11),6500) PS(6),(PS(J),J=1,5) | |
38100 | ENDIF | |
38101 | ||
38102 | C...Give simple list of KF codes defined in program. | |
38103 | ELSEIF(MLIST.EQ.11) THEN | |
38104 | WRITE(MSTU(11),6600) | |
38105 | DO 140 KF=1,80 | |
38106 | CALL PYNAME(KF,CHAP) | |
38107 | CALL PYNAME(-KF,CHAN) | |
38108 | IF(CHAP.NE.' '.AND.CHAN.EQ.' ') WRITE(MSTU(11),6700) KF,CHAP | |
38109 | IF(CHAN.NE.' ') WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38110 | 140 CONTINUE | |
38111 | DO 170 KFLS=1,3,2 | |
38112 | DO 160 KFLA=1,5 | |
38113 | DO 150 KFLB=1,KFLA-(3-KFLS)/2 | |
38114 | KF=1000*KFLA+100*KFLB+KFLS | |
38115 | CALL PYNAME(KF,CHAP) | |
38116 | CALL PYNAME(-KF,CHAN) | |
38117 | WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38118 | 150 CONTINUE | |
38119 | 160 CONTINUE | |
38120 | 170 CONTINUE | |
38121 | KF=130 | |
38122 | CALL PYNAME(KF,CHAP) | |
38123 | WRITE(MSTU(11),6700) KF,CHAP | |
38124 | KF=310 | |
38125 | CALL PYNAME(KF,CHAP) | |
38126 | WRITE(MSTU(11),6700) KF,CHAP | |
38127 | DO 200 KMUL=0,5 | |
38128 | KFLS=3 | |
38129 | IF(KMUL.EQ.0.OR.KMUL.EQ.3) KFLS=1 | |
38130 | IF(KMUL.EQ.5) KFLS=5 | |
38131 | KFLR=0 | |
38132 | IF(KMUL.EQ.2.OR.KMUL.EQ.3) KFLR=1 | |
38133 | IF(KMUL.EQ.4) KFLR=2 | |
38134 | DO 190 KFLB=1,5 | |
38135 | DO 180 KFLC=1,KFLB-1 | |
38136 | KF=10000*KFLR+100*KFLB+10*KFLC+KFLS | |
38137 | CALL PYNAME(KF,CHAP) | |
38138 | CALL PYNAME(-KF,CHAN) | |
38139 | WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38140 | 180 CONTINUE | |
38141 | KF=10000*KFLR+110*KFLB+KFLS | |
38142 | CALL PYNAME(KF,CHAP) | |
38143 | WRITE(MSTU(11),6700) KF,CHAP | |
38144 | 190 CONTINUE | |
38145 | 200 CONTINUE | |
38146 | KF=100443 | |
38147 | CALL PYNAME(KF,CHAP) | |
38148 | WRITE(MSTU(11),6700) KF,CHAP | |
38149 | KF=100553 | |
38150 | CALL PYNAME(KF,CHAP) | |
38151 | WRITE(MSTU(11),6700) KF,CHAP | |
38152 | DO 240 KFLSP=1,3 | |
38153 | KFLS=2+2*(KFLSP/3) | |
38154 | DO 230 KFLA=1,5 | |
38155 | DO 220 KFLB=1,KFLA | |
38156 | DO 210 KFLC=1,KFLB | |
38157 | IF(KFLSP.EQ.1.AND.(KFLA.EQ.KFLB.OR.KFLB.EQ.KFLC)) | |
38158 | & GOTO 210 | |
38159 | IF(KFLSP.EQ.2.AND.KFLA.EQ.KFLC) GOTO 210 | |
38160 | IF(KFLSP.EQ.1) KF=1000*KFLA+100*KFLC+10*KFLB+KFLS | |
38161 | IF(KFLSP.GE.2) KF=1000*KFLA+100*KFLB+10*KFLC+KFLS | |
38162 | CALL PYNAME(KF,CHAP) | |
38163 | CALL PYNAME(-KF,CHAN) | |
38164 | WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38165 | 210 CONTINUE | |
38166 | 220 CONTINUE | |
38167 | 230 CONTINUE | |
38168 | 240 CONTINUE | |
38169 | DO 250 KF=KSUSY1+1,KSUSY1+40 | |
38170 | CALL PYNAME(KF,CHAP) | |
38171 | CALL PYNAME(-KF,CHAN) | |
38172 | IF(CHAP.NE.' '.AND.CHAN.EQ.' ') WRITE(MSTU(11),6700) KF,CHAP | |
38173 | IF(CHAN.NE.' ') WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38174 | 250 CONTINUE | |
38175 | DO 260 KF=KSUSY2+1,KSUSY2+40 | |
38176 | CALL PYNAME(KF,CHAP) | |
38177 | CALL PYNAME(-KF,CHAN) | |
38178 | IF(CHAP.NE.' '.AND.CHAN.EQ.' ') WRITE(MSTU(11),6700) KF,CHAP | |
38179 | IF(CHAN.NE.' ') WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38180 | 260 CONTINUE | |
38181 | DO 270 KF=KEXCIT+1,KEXCIT+40 | |
38182 | CALL PYNAME(KF,CHAP) | |
38183 | CALL PYNAME(-KF,CHAN) | |
38184 | IF(CHAP.NE.' '.AND.CHAN.EQ.' ') WRITE(MSTU(11),6700) KF,CHAP | |
38185 | IF(CHAN.NE.' ') WRITE(MSTU(11),6700) KF,CHAP,-KF,CHAN | |
38186 | 270 CONTINUE | |
38187 | ||
38188 | C...List parton/particle data table. Check whether to be listed. | |
38189 | ELSEIF(MLIST.EQ.12) THEN | |
38190 | WRITE(MSTU(11),6800) | |
38191 | DO 300 KC=1,MSTU(6) | |
38192 | KF=KCHG(KC,4) | |
38193 | IF(KF.EQ.0) GOTO 300 | |
38194 | IF(KF.LT.MSTU(1).OR.(MSTU(2).GT.0.AND.KF.GT.MSTU(2))) | |
38195 | & GOTO 300 | |
38196 | ||
38197 | C...Find particle name and mass. Print information. | |
38198 | CALL PYNAME(KF,CHAP) | |
38199 | IF(KF.LE.100.AND.CHAP.EQ.' '.AND.MDCY(KC,2).EQ.0) GOTO 300 | |
38200 | CALL PYNAME(-KF,CHAN) | |
38201 | WRITE(MSTU(11),6900) KF,KC,CHAP,CHAN,(KCHG(KC,J1),J1=1,3), | |
38202 | & (PMAS(KC,J2),J2=1,4),MDCY(KC,1) | |
38203 | ||
38204 | C...Particle decay: channel number, branching ratios, matrix element, | |
38205 | C...decay products. | |
38206 | DO 290 IDC=MDCY(KC,2),MDCY(KC,2)+MDCY(KC,3)-1 | |
38207 | DO 280 J=1,5 | |
38208 | CALL PYNAME(KFDP(IDC,J),CHAD(J)) | |
38209 | 280 CONTINUE | |
38210 | WRITE(MSTU(11),7000) IDC,MDME(IDC,1),MDME(IDC,2),BRAT(IDC), | |
38211 | & (CHAD(J),J=1,5) | |
38212 | 290 CONTINUE | |
38213 | 300 CONTINUE | |
38214 | ||
38215 | C...List parameter value table. | |
38216 | ELSEIF(MLIST.EQ.13) THEN | |
38217 | WRITE(MSTU(11),7100) | |
38218 | DO 310 I=1,200 | |
38219 | WRITE(MSTU(11),7200) I,MSTU(I),PARU(I),MSTJ(I),PARJ(I),PARF(I) | |
38220 | 310 CONTINUE | |
38221 | ENDIF | |
38222 | ||
38223 | C...Format statements for output on unit MSTU(11) (by default 6). | |
38224 | 5100 FORMAT(///28X,'Event listing (summary)'//4X,'I particle/jet KS', | |
38225 | &5X,'KF orig p_x p_y p_z E m'/) | |
38226 | 5200 FORMAT(///28X,'Event listing (standard)'//4X,'I particle/jet', | |
38227 | &' K(I,1) K(I,2) K(I,3) K(I,4) K(I,5) P(I,1)', | |
38228 | &' P(I,2) P(I,3) P(I,4) P(I,5)'/) | |
38229 | 5300 FORMAT(///28X,'Event listing (with vertices)'//4X,'I particle/j', | |
38230 | &'et K(I,1) K(I,2) K(I,3) K(I,4) K(I,5) P(I,1)', | |
38231 | &' P(I,2) P(I,3) P(I,4) P(I,5)'/73X, | |
38232 | &'V(I,1) V(I,2) V(I,3) V(I,4) V(I,5)'/) | |
38233 | 5400 FORMAT(1X,I4,1X,A12,1X,I2,I8,1X,I4,5F9.3) | |
38234 | 5500 FORMAT(1X,I4,1X,A12,1X,I2,I8,1X,I4,5F9.2) | |
38235 | 5600 FORMAT(1X,I4,1X,A12,1X,I2,I8,1X,I4,5F9.1) | |
38236 | 5700 FORMAT(1X,I4,2X,A16,1X,I3,1X,I9,1X,I4,2(3X,I1,2I4),5F13.5) | |
38237 | 5800 FORMAT(1X,I4,2X,A16,1X,I3,1X,I9,1X,I4,2(3X,I9),5F13.5) | |
38238 | 5900 FORMAT(66X,5(1X,F12.3)) | |
38239 | 6000 FORMAT(1X,78('=')) | |
38240 | 6100 FORMAT(1X,130('=')) | |
38241 | 6200 FORMAT(19X,'sum:',F6.2,5X,5F9.3) | |
38242 | 6300 FORMAT(19X,'sum:',F6.2,5X,5F9.2) | |
38243 | 6400 FORMAT(19X,'sum:',F6.2,5X,5F9.1) | |
38244 | 6500 FORMAT(19X,'sum charge:',F6.2,3X,'sum momentum and inv. mass:', | |
38245 | &5F13.5) | |
38246 | 6600 FORMAT(///20X,'List of KF codes in program'/) | |
38247 | 6700 FORMAT(4X,I9,4X,A16,6X,I9,4X,A16) | |
38248 | 6800 FORMAT(///30X,'Particle/parton data table'//8X,'KF',5X,'KC',4X, | |
38249 | &'particle',8X,'antiparticle',6X,'chg col anti',8X,'mass',7X, | |
38250 | &'width',7X,'w-cut',5X,'lifetime',1X,'decay'/11X,'IDC',1X,'on/off', | |
38251 | &1X,'ME',3X,'Br.rat.',4X,'decay products') | |
38252 | 6900 FORMAT(/1X,I9,3X,I4,4X,A16,A16,3I5,1X,F12.5,2(1X,F11.5), | |
38253 | &1X,1P,E13.5,3X,I2) | |
38254 | 7000 FORMAT(10X,I4,2X,I3,2X,I3,2X,F10.6,4X,5A16) | |
38255 | 7100 FORMAT(///20X,'Parameter value table'//4X,'I',3X,'MSTU(I)', | |
38256 | &8X,'PARU(I)',3X,'MSTJ(I)',8X,'PARJ(I)',8X,'PARF(I)') | |
38257 | 7200 FORMAT(1X,I4,1X,I9,1X,F14.5,1X,I9,1X,F14.5,1X,F14.5) | |
38258 | ||
38259 | RETURN | |
38260 | END | |
38261 | ||
38262 | C********************************************************************* | |
38263 | ||
38264 | C...PYLOGO | |
38265 | C...Writes a logo for the program. | |
38266 | ||
38267 | SUBROUTINE PYLOGO | |
38268 | ||
38269 | C...Double precision and integer declarations. | |
38270 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
38271 | INTEGER PYK,PYCHGE,PYCOMP | |
38272 | C...Parameter for length of information block. | |
38273 | PARAMETER (IREFER=17) | |
38274 | C...Commonblocks. | |
38275 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
38276 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) | |
38277 | SAVE /PYDAT1/,/PYPARS/ | |
38278 | C...Local arrays and character variables. | |
38279 | INTEGER IDATI(6) | |
38280 | CHARACTER MONTH(12)*3, LOGO(48)*32, REFER(2*IREFER)*36, LINE*79, | |
38281 | &VERS*1, SUBV*3, DATE*2, YEAR*4, HOUR*2, MINU*2, SECO*2 | |
38282 | ||
38283 | C...Data on months, logo, titles, and references. | |
38284 | DATA MONTH/'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep', | |
38285 | &'Oct','Nov','Dec'/ | |
38286 | DATA (LOGO(J),J=1,19)/ | |
38287 | &' *......* ', | |
38288 | &' *:::!!:::::::::::* ', | |
38289 | &' *::::::!!::::::::::::::* ', | |
38290 | &' *::::::::!!::::::::::::::::* ', | |
38291 | &' *:::::::::!!:::::::::::::::::* ', | |
38292 | &' *:::::::::!!:::::::::::::::::* ', | |
38293 | &' *::::::::!!::::::::::::::::*! ', | |
38294 | &' *::::::!!::::::::::::::* !! ', | |
38295 | &' !! *:::!!:::::::::::* !! ', | |
38296 | &' !! !* -><- * !! ', | |
38297 | &' !! !! !! ', | |
38298 | &' !! !! !! ', | |
38299 | &' !! !! ', | |
38300 | &' !! ep !! ', | |
38301 | &' !! !! ', | |
38302 | &' !! pp !! ', | |
38303 | &' !! e+e- !! ', | |
38304 | &' !! !! ', | |
38305 | &' !! '/ | |
38306 | DATA (LOGO(J),J=20,38)/ | |
38307 | &'Welcome to the Lund Monte Carlo!', | |
38308 | &' ', | |
38309 | &'PPP Y Y TTTTT H H III A ', | |
38310 | &'P P Y Y T H H I A A ', | |
38311 | &'PPP Y T HHHHH I AAAAA', | |
38312 | &'P Y T H H I A A', | |
38313 | &'P Y T H H III A A', | |
38314 | &' ', | |
38315 | &'This is PYTHIA version x.xxx ', | |
38316 | &'Last date of change: xx xxx 199x', | |
38317 | &' ', | |
38318 | &'Now is xx xxx 199x at xx:xx:xx ', | |
38319 | &' ', | |
38320 | &'Disclaimer: this program comes ', | |
38321 | &'without any guarantees. Beware ', | |
38322 | &'of errors and use common sense ', | |
38323 | &'when interpreting results. ', | |
38324 | &' ', | |
38325 | &'Copyright T. Sjostrand (1997) '/ | |
38326 | DATA (REFER(J),J=1,18)/ | |
38327 | &'An archive of program versions and d', | |
38328 | &'ocumentation is found on the web: ', | |
38329 | &'http://www.thep.lu.se/tf2/staff/torb', | |
38330 | &'jorn/Pythia.html ', | |
38331 | &' ', | |
38332 | &' ', | |
38333 | &'When you cite this program, currentl', | |
38334 | &'y the official reference is ', | |
38335 | &'T. Sjostrand, Computer Physics Commu', | |
38336 | &'n. 82 (1994) 74. ', | |
38337 | &'The supersymmetry extensions are des', | |
38338 | &'cribed in ', | |
38339 | &'S. Mrenna, Computer Physics Commun. ', | |
38340 | &'101 (1997) 232 ', | |
38341 | &'Also remember that the program, to a', | |
38342 | &' large extent, represents original ', | |
38343 | &'physics research. Other publications', | |
38344 | &' of special relevance to your '/ | |
38345 | DATA (REFER(J),J=19,2*IREFER)/ | |
38346 | &'studies may therefore deserve separa', | |
38347 | &'te mention. ', | |
38348 | &' ', | |
38349 | &' ', | |
38350 | &'Main author: Torbjorn Sjostrand; Dep', | |
38351 | &'artment of Theoretical Physics 2, ', | |
38352 | &' Lund University, Solvegatan 14A, S', | |
38353 | &'-223 62 Lund, Sweden; ', | |
38354 | &' phone: + 46 - 46 - 222 48 16; e-ma', | |
38355 | &'il: torbjorn@thep.lu.se ', | |
38356 | &'SUSY author: Stephen Mrenna, Argonne', | |
38357 | &' National Laboratory, ', | |
38358 | &' 9700 South Cass Avenue, Argonne, I', | |
38359 | &'L 60439, USA; ', | |
38360 | &' phone: + 1 - 630 - 252 - 7615; e-m', | |
38361 | &'ail: mrenna@hep.anl.gov '/ | |
38362 | ||
38363 | C...Check that PYDATA linked. | |
38364 | IF(MSTP(183)/10.NE.199) THEN | |
38365 | WRITE(MSTU(11),'(1X,A)') | |
38366 | & 'Error: PYDATA has not been linked.' | |
38367 | WRITE(MSTU(11),'(1X,A)') 'Execution stopped!' | |
38368 | STOP | |
38369 | ||
38370 | C...Write current version number and current date+time. | |
38371 | ELSE | |
38372 | WRITE(VERS,'(I1)') MSTP(181) | |
38373 | LOGO(28)(24:24)=VERS | |
38374 | WRITE(SUBV,'(I3)') MSTP(182) | |
38375 | LOGO(28)(26:28)=SUBV | |
38376 | IF(MSTP(182).LT.100) LOGO(28)(26:26)='0' | |
38377 | WRITE(DATE,'(I2)') MSTP(185) | |
38378 | LOGO(29)(22:23)=DATE | |
38379 | LOGO(29)(25:27)=MONTH(MSTP(184)) | |
38380 | WRITE(YEAR,'(I4)') MSTP(183) | |
38381 | LOGO(29)(29:32)=YEAR | |
38382 | CALL PYTIME(IDATI) | |
38383 | IF(IDATI(1).LE.0) THEN | |
38384 | LOGO(31)=' ' | |
38385 | ELSE | |
38386 | WRITE(DATE,'(I2)') IDATI(3) | |
38387 | LOGO(31)(8:9)=DATE | |
38388 | LOGO(31)(11:13)=MONTH(MAX(1,MIN(12,IDATI(2)))) | |
38389 | WRITE(YEAR,'(I4)') IDATI(1) | |
38390 | LOGO(31)(15:18)=YEAR | |
38391 | WRITE(HOUR,'(I2)') IDATI(4) | |
38392 | LOGO(31)(23:24)=HOUR | |
38393 | WRITE(MINU,'(I2)') IDATI(5) | |
38394 | LOGO(31)(26:27)=MINU | |
38395 | IF(IDATI(5).LT.10) LOGO(31)(26:26)='0' | |
38396 | WRITE(SECO,'(I2)') IDATI(6) | |
38397 | LOGO(31)(29:30)=SECO | |
38398 | IF(IDATI(6).LT.10) LOGO(31)(29:29)='0' | |
38399 | ENDIF | |
38400 | ENDIF | |
38401 | ||
38402 | C...Loop over lines in header. Define page feed and side borders. | |
38403 | DO 100 ILIN=1,29+IREFER | |
38404 | LINE=' ' | |
38405 | IF(ILIN.EQ.1) THEN | |
38406 | LINE(1:1)='1' | |
38407 | ELSE | |
38408 | LINE(2:3)='**' | |
38409 | LINE(78:79)='**' | |
38410 | ENDIF | |
38411 | ||
38412 | C...Separator lines and logos. | |
38413 | IF(ILIN.EQ.2.OR.ILIN.EQ.3.OR.ILIN.GE.28+IREFER) THEN | |
38414 | LINE(4:77)='***********************************************'// | |
38415 | & '***************************' | |
38416 | ELSEIF(ILIN.GE.6.AND.ILIN.LE.24) THEN | |
38417 | LINE(6:37)=LOGO(ILIN-5) | |
38418 | LINE(44:75)=LOGO(ILIN+14) | |
38419 | ELSEIF(ILIN.GE.26.AND.ILIN.LE.25+IREFER) THEN | |
38420 | LINE(5:40)=REFER(2*ILIN-51) | |
38421 | LINE(41:76)=REFER(2*ILIN-50) | |
38422 | ENDIF | |
38423 | ||
38424 | C...Write lines to appropriate unit. | |
38425 | WRITE(MSTU(11),'(A79)') LINE | |
38426 | 100 CONTINUE | |
38427 | ||
38428 | RETURN | |
38429 | END | |
38430 | ||
38431 | C********************************************************************* | |
38432 | ||
38433 | C...PYUPDA | |
38434 | C...Facilitates the updating of particle and decay data | |
38435 | C...by allowing it to be done in an external file. | |
38436 | ||
38437 | SUBROUTINE PYUPDA(MUPDA,LFN) | |
38438 | ||
38439 | C...Double precision and integer declarations. | |
38440 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
38441 | INTEGER PYK,PYCHGE,PYCOMP | |
38442 | C...Commonblocks. | |
38443 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
38444 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
38445 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
38446 | COMMON/PYDAT4/CHAF(500,2) | |
38447 | CHARACTER CHAF*16 | |
38448 | COMMON/PYINT4/MWID(500),WIDS(500,5) | |
38449 | SAVE /PYDAT1/,/PYDAT2/,/PYDAT3/,/PYDAT4/,/PYINT4/ | |
38450 | C...Local arrays, character variables and data. | |
38451 | CHARACTER CHINL*120,CHKF*9,CHVAR(22)*9,CHLIN*72, | |
38452 | &CHBLK(20)*72,CHOLD*16,CHTMP*16,CHNEW*16,CHCOM*24 | |
38453 | DATA CHVAR/ 'KCHG(I,1)','KCHG(I,2)','KCHG(I,3)','KCHG(I,4)', | |
38454 | &'PMAS(I,1)','PMAS(I,2)','PMAS(I,3)','PMAS(I,4)','MDCY(I,1)', | |
38455 | &'MDCY(I,2)','MDCY(I,3)','MDME(I,1)','MDME(I,2)','BRAT(I) ', | |
38456 | &'KFDP(I,1)','KFDP(I,2)','KFDP(I,3)','KFDP(I,4)','KFDP(I,5)', | |
38457 | &'CHAF(I,1)','CHAF(I,2)','MWID(I) '/ | |
38458 | ||
38459 | C...Write header if not yet done. | |
38460 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
38461 | ||
38462 | C...Write information on file for editing. | |
38463 | IF(MUPDA.EQ.1) THEN | |
38464 | DO 110 KC=1,500 | |
38465 | WRITE(LFN,5000) KCHG(KC,4),(CHAF(KC,J1),J1=1,2), | |
38466 | & (KCHG(KC,J2),J2=1,3),(PMAS(KC,J3),J3=1,4), | |
38467 | & MWID(KC),MDCY(KC,1) | |
38468 | DO 100 IDC=MDCY(KC,2),MDCY(KC,2)+MDCY(KC,3)-1 | |
38469 | WRITE(LFN,5100) MDME(IDC,1),MDME(IDC,2),BRAT(IDC), | |
38470 | & (KFDP(IDC,J),J=1,5) | |
38471 | 100 CONTINUE | |
38472 | 110 CONTINUE | |
38473 | ||
38474 | C...Read complete set of information from edited file or | |
38475 | C...read partial set of new or updated information from edited file. | |
38476 | ELSEIF(MUPDA.EQ.2.OR.MUPDA.EQ.3) THEN | |
38477 | ||
38478 | C...Reset counters. | |
38479 | KCC=100 | |
38480 | NDC=0 | |
38481 | CHKF=' ' | |
38482 | IF(MUPDA.EQ.2) THEN | |
38483 | DO 120 I=1,MSTU(6) | |
38484 | KCHG(I,4)=0 | |
38485 | 120 CONTINUE | |
38486 | ELSE | |
38487 | DO 130 KC=1,MSTU(6) | |
38488 | IF(KC.GT.100.AND.KCHG(KC,4).GT.100) KCC=KC | |
38489 | NDC=MAX(NDC,MDCY(KC,2)+MDCY(KC,3)-1) | |
38490 | 130 CONTINUE | |
38491 | ENDIF | |
38492 | ||
38493 | C...Begin of loop: read new line; unknown whether particle or | |
38494 | C...decay data. | |
38495 | 140 READ(LFN,5200,END=190) CHINL | |
38496 | ||
38497 | C...Identify particle code and whether already defined (for MUPDA=3). | |
38498 | IF(CHINL(2:10).NE.' ') THEN | |
38499 | CHKF=CHINL(2:10) | |
38500 | READ(CHKF,5300) KF | |
38501 | IF(MUPDA.EQ.2) THEN | |
38502 | IF(KF.LE.100) THEN | |
38503 | KC=KF | |
38504 | ELSE | |
38505 | KCC=KCC+1 | |
38506 | KC=KCC | |
38507 | ENDIF | |
38508 | ELSE | |
38509 | KCREP=0 | |
38510 | IF(KF.LE.100) THEN | |
38511 | KCREP=KF | |
38512 | ELSE | |
38513 | DO 150 KCR=101,KCC | |
38514 | IF(KCHG(KCR,4).EQ.KF) KCREP=KCR | |
38515 | 150 CONTINUE | |
38516 | ENDIF | |
38517 | C...Remove duplicate old decay data. | |
38518 | IF(KCREP.NE.0) THEN | |
38519 | IDCREP=MDCY(KCREP,2) | |
38520 | NDCREP=MDCY(KCREP,3) | |
38521 | DO 160 I=1,KCC | |
38522 | IF(MDCY(I,2).GT.IDCREP) MDCY(I,2)=MDCY(I,2)-NDCREP | |
38523 | 160 CONTINUE | |
38524 | DO 180 I=IDCREP,NDC-NDCREP | |
38525 | MDME(I,1)=MDME(I+NDCREP,1) | |
38526 | MDME(I,2)=MDME(I+NDCREP,2) | |
38527 | BRAT(I)=BRAT(I+NDCREP) | |
38528 | DO 170 J=1,5 | |
38529 | KFDP(I,J)=KFDP(I+NDCREP,J) | |
38530 | 170 CONTINUE | |
38531 | 180 CONTINUE | |
38532 | NDC=NDC-NDCREP | |
38533 | KC=KCREP | |
38534 | ELSE | |
38535 | KCC=KCC+1 | |
38536 | KC=KCC | |
38537 | ENDIF | |
38538 | ENDIF | |
38539 | ||
38540 | C...Study line with particle data. | |
38541 | IF(KC.GT.MSTU(6)) CALL PYERRM(27, | |
38542 | & '(PYUPDA:) Particle arrays full by KF ='//CHKF) | |
38543 | READ(CHINL,5000) KCHG(KC,4),(CHAF(KC,J1),J1=1,2), | |
38544 | & (KCHG(KC,J2),J2=1,3),(PMAS(KC,J3),J3=1,4), | |
38545 | & MWID(KC),MDCY(KC,1) | |
38546 | MDCY(KC,2)=0 | |
38547 | MDCY(KC,3)=0 | |
38548 | ||
38549 | C...Study line with decay data. | |
38550 | ELSE | |
38551 | NDC=NDC+1 | |
38552 | IF(NDC.GT.MSTU(7)) CALL PYERRM(27, | |
38553 | & '(PYUPDA:) Decay data arrays full by KF ='//CHKF) | |
38554 | IF(MDCY(KC,2).EQ.0) MDCY(KC,2)=NDC | |
38555 | MDCY(KC,3)=MDCY(KC,3)+1 | |
38556 | READ(CHINL,5100) MDME(NDC,1),MDME(NDC,2),BRAT(NDC), | |
38557 | & (KFDP(NDC,J),J=1,5) | |
38558 | ENDIF | |
38559 | ||
38560 | C...End of loop; ensure that PYCOMP tables are updated. | |
38561 | GOTO 140 | |
38562 | 190 CONTINUE | |
38563 | MSTU(20)=0 | |
38564 | ||
38565 | C...Perform possible tests that new information is consistent. | |
38566 | MSTJ24=MSTJ(24) | |
38567 | MSTJ(24)=0 | |
38568 | DO 220 KC=1,MSTU(6) | |
38569 | KF=KCHG(KC,4) | |
38570 | IF(KF.EQ.0) GOTO 220 | |
38571 | WRITE(CHKF,5300) KF | |
38572 | IF(MIN(PMAS(KC,1),PMAS(KC,2),PMAS(KC,3),PMAS(KC,1)-PMAS(KC,3), | |
38573 | & PMAS(KC,4)).LT.0D0.OR.MDCY(KC,3).LT.0) CALL PYERRM(17, | |
38574 | & '(PYUPDA:) Mass/width/life/(# channels) wrong for KF ='//CHKF) | |
38575 | BRSUM=0D0 | |
38576 | DO 210 IDC=MDCY(KC,2),MDCY(KC,2)+MDCY(KC,3)-1 | |
38577 | IF(MDME(IDC,2).GT.80) GOTO 210 | |
38578 | KQ=KCHG(KC,1) | |
38579 | PMS=PMAS(KC,1)-PMAS(KC,3)-PARJ(64) | |
38580 | MERR=0 | |
38581 | DO 200 J=1,5 | |
38582 | KP=KFDP(IDC,J) | |
38583 | IF(KP.EQ.0.OR.KP.EQ.81.OR.IABS(KP).EQ.82) THEN | |
38584 | IF(KP.EQ.81) KQ=0 | |
38585 | ELSEIF(PYCOMP(KP).EQ.0) THEN | |
38586 | MERR=3 | |
38587 | ELSE | |
38588 | KQ=KQ-PYCHGE(KP) | |
38589 | PMS=PMS-PYMASS(KP) | |
38590 | KPC=PYCOMP(KP) | |
38591 | PMS=PMS-PMAS(KPC,1) | |
38592 | IF(MSTJ(24).GT.0) PMS=PMS+0.5D0*MIN(PMAS(KPC,2), | |
38593 | & PMAS(KPC,3)) | |
38594 | ENDIF | |
38595 | 200 CONTINUE | |
38596 | IF(KQ.NE.0) MERR=MAX(2,MERR) | |
38597 | IF(MWID(KC).EQ.0.AND.KF.NE.311.AND.PMS.LT.0D0) | |
38598 | & MERR=MAX(1,MERR) | |
38599 | IF(MERR.EQ.3) CALL PYERRM(17, | |
38600 | & '(PYUPDA:) Unknown particle code in decay of KF ='//CHKF) | |
38601 | IF(MERR.EQ.2) CALL PYERRM(17, | |
38602 | & '(PYUPDA:) Charge not conserved in decay of KF ='//CHKF) | |
38603 | IF(MERR.EQ.1) CALL PYERRM(7, | |
38604 | & '(PYUPDA:) Kinematically unallowed decay of KF ='//CHKF) | |
38605 | BRSUM=BRSUM+BRAT(IDC) | |
38606 | 210 CONTINUE | |
38607 | WRITE(CHTMP,5500) BRSUM | |
38608 | IF(ABS(BRSUM).GT.0.0005D0.AND.ABS(BRSUM-1D0).GT.0.0005D0) | |
38609 | & CALL PYERRM(7,'(PYUPDA:) Sum of branching ratios is '// | |
38610 | & CHTMP(9:16)//' for KF ='//CHKF) | |
38611 | 220 CONTINUE | |
38612 | MSTJ(24)=MSTJ24 | |
38613 | ||
38614 | C...Write DATA statements for inclusion in program. | |
38615 | ELSEIF(MUPDA.EQ.4) THEN | |
38616 | ||
38617 | C...Find out how many codes and decay channels are actually used. | |
38618 | KCC=0 | |
38619 | NDC=0 | |
38620 | DO 230 I=1,MSTU(6) | |
38621 | IF(KCHG(I,4).NE.0) THEN | |
38622 | KCC=I | |
38623 | NDC=MAX(NDC,MDCY(I,2)+MDCY(I,3)-1) | |
38624 | ENDIF | |
38625 | 230 CONTINUE | |
38626 | ||
38627 | C...Initialize writing of DATA statements for inclusion in program. | |
38628 | DO 300 IVAR=1,22 | |
38629 | NDIM=MSTU(6) | |
38630 | IF(IVAR.GE.12.AND.IVAR.LE.19) NDIM=MSTU(7) | |
38631 | NLIN=1 | |
38632 | CHLIN=' ' | |
38633 | CHLIN(7:35)='DATA ('//CHVAR(IVAR)//',I= 1, )/' | |
38634 | LLIN=35 | |
38635 | CHOLD='START' | |
38636 | ||
38637 | C...Loop through variables for conversion to characters. | |
38638 | DO 280 IDIM=1,NDIM | |
38639 | IF(IVAR.EQ.1) WRITE(CHTMP,5400) KCHG(IDIM,1) | |
38640 | IF(IVAR.EQ.2) WRITE(CHTMP,5400) KCHG(IDIM,2) | |
38641 | IF(IVAR.EQ.3) WRITE(CHTMP,5400) KCHG(IDIM,3) | |
38642 | IF(IVAR.EQ.4) WRITE(CHTMP,5400) KCHG(IDIM,4) | |
38643 | IF(IVAR.EQ.5) WRITE(CHTMP,5500) PMAS(IDIM,1) | |
38644 | IF(IVAR.EQ.6) WRITE(CHTMP,5500) PMAS(IDIM,2) | |
38645 | IF(IVAR.EQ.7) WRITE(CHTMP,5500) PMAS(IDIM,3) | |
38646 | IF(IVAR.EQ.8) WRITE(CHTMP,5500) PMAS(IDIM,4) | |
38647 | IF(IVAR.EQ.9) WRITE(CHTMP,5400) MDCY(IDIM,1) | |
38648 | IF(IVAR.EQ.10) WRITE(CHTMP,5400) MDCY(IDIM,2) | |
38649 | IF(IVAR.EQ.11) WRITE(CHTMP,5400) MDCY(IDIM,3) | |
38650 | IF(IVAR.EQ.12) WRITE(CHTMP,5400) MDME(IDIM,1) | |
38651 | IF(IVAR.EQ.13) WRITE(CHTMP,5400) MDME(IDIM,2) | |
38652 | IF(IVAR.EQ.14) WRITE(CHTMP,5600) BRAT(IDIM) | |
38653 | IF(IVAR.EQ.15) WRITE(CHTMP,5400) KFDP(IDIM,1) | |
38654 | IF(IVAR.EQ.16) WRITE(CHTMP,5400) KFDP(IDIM,2) | |
38655 | IF(IVAR.EQ.17) WRITE(CHTMP,5400) KFDP(IDIM,3) | |
38656 | IF(IVAR.EQ.18) WRITE(CHTMP,5400) KFDP(IDIM,4) | |
38657 | IF(IVAR.EQ.19) WRITE(CHTMP,5400) KFDP(IDIM,5) | |
38658 | IF(IVAR.EQ.20) CHTMP=CHAF(IDIM,1) | |
38659 | IF(IVAR.EQ.21) CHTMP=CHAF(IDIM,2) | |
38660 | IF(IVAR.EQ.22) WRITE(CHTMP,5400) MWID(IDIM) | |
38661 | ||
38662 | C...Replace variables beyond what is properly defined. | |
38663 | IF(IVAR.LE.4) THEN | |
38664 | IF(IDIM.GT.KCC) CHTMP=' 0' | |
38665 | ELSEIF(IVAR.LE.8) THEN | |
38666 | IF(IDIM.GT.KCC) CHTMP=' 0.0' | |
38667 | ELSEIF(IVAR.LE.11) THEN | |
38668 | IF(IDIM.GT.KCC) CHTMP=' 0' | |
38669 | ELSEIF(IVAR.LE.13) THEN | |
38670 | IF(IDIM.GT.NDC) CHTMP=' 0' | |
38671 | ELSEIF(IVAR.LE.14) THEN | |
38672 | IF(IDIM.GT.NDC) CHTMP=' 0.0' | |
38673 | ELSEIF(IVAR.LE.19) THEN | |
38674 | IF(IDIM.GT.NDC) CHTMP=' 0' | |
38675 | ELSEIF(IVAR.LE.21) THEN | |
38676 | IF(IDIM.GT.KCC) CHTMP=' ' | |
38677 | ELSE | |
38678 | IF(IDIM.GT.KCC) CHTMP=' 0' | |
38679 | ENDIF | |
38680 | ||
38681 | C...Length of variable, trailing decimal zeros, quotation marks. | |
38682 | LLOW=1 | |
38683 | LHIG=1 | |
38684 | DO 240 LL=1,16 | |
38685 | IF(CHTMP(17-LL:17-LL).NE.' ') LLOW=17-LL | |
38686 | IF(CHTMP(LL:LL).NE.' ') LHIG=LL | |
38687 | 240 CONTINUE | |
38688 | CHNEW=CHTMP(LLOW:LHIG)//' ' | |
38689 | LNEW=1+LHIG-LLOW | |
38690 | IF((IVAR.GE.5.AND.IVAR.LE.8).OR.IVAR.EQ.14) THEN | |
38691 | LNEW=LNEW+1 | |
38692 | 250 LNEW=LNEW-1 | |
38693 | IF(LNEW.GE.2.AND.CHNEW(LNEW:LNEW).EQ.'0') GOTO 250 | |
38694 | IF(CHNEW(LNEW:LNEW).EQ.'.') LNEW=LNEW-1 | |
38695 | IF(LNEW.EQ.0) THEN | |
38696 | CHNEW(1:3)='0D0' | |
38697 | LNEW=3 | |
38698 | ELSE | |
38699 | CHNEW(LNEW+1:LNEW+2)='D0' | |
38700 | LNEW=LNEW+2 | |
38701 | ENDIF | |
38702 | ELSEIF(IVAR.EQ.20.OR.IVAR.EQ.21) THEN | |
38703 | DO 260 LL=LNEW,1,-1 | |
38704 | IF(CHNEW(LL:LL).EQ.'''') THEN | |
38705 | CHTMP=CHNEW | |
38706 | CHNEW=CHTMP(1:LL)//''''//CHTMP(LL+1:11) | |
38707 | LNEW=LNEW+1 | |
38708 | ENDIF | |
38709 | 260 CONTINUE | |
38710 | LNEW=MIN(14,LNEW) | |
38711 | CHTMP=CHNEW | |
38712 | CHNEW(1:LNEW+2)=''''//CHTMP(1:LNEW)//'''' | |
38713 | LNEW=LNEW+2 | |
38714 | ENDIF | |
38715 | ||
38716 | C...Form composite character string, often including repetition counter. | |
38717 | IF(CHNEW.NE.CHOLD) THEN | |
38718 | NRPT=1 | |
38719 | CHOLD=CHNEW | |
38720 | CHCOM=CHNEW | |
38721 | LCOM=LNEW | |
38722 | ELSE | |
38723 | LRPT=LNEW+1 | |
38724 | IF(NRPT.GE.2) LRPT=LNEW+3 | |
38725 | IF(NRPT.GE.10) LRPT=LNEW+4 | |
38726 | IF(NRPT.GE.100) LRPT=LNEW+5 | |
38727 | IF(NRPT.GE.1000) LRPT=LNEW+6 | |
38728 | LLIN=LLIN-LRPT | |
38729 | NRPT=NRPT+1 | |
38730 | WRITE(CHTMP,5400) NRPT | |
38731 | LRPT=1 | |
38732 | IF(NRPT.GE.10) LRPT=2 | |
38733 | IF(NRPT.GE.100) LRPT=3 | |
38734 | IF(NRPT.GE.1000) LRPT=4 | |
38735 | CHCOM(1:LRPT+1+LNEW)=CHTMP(17-LRPT:16)//'*'//CHNEW(1:LNEW) | |
38736 | LCOM=LRPT+1+LNEW | |
38737 | ENDIF | |
38738 | ||
38739 | C...Add characters to end of line, to new line (after storing old line), | |
38740 | C...or to new block of lines (after writing old block). | |
38741 | IF(LLIN+LCOM.LE.70) THEN | |
38742 | CHLIN(LLIN+1:LLIN+LCOM+1)=CHCOM(1:LCOM)//',' | |
38743 | LLIN=LLIN+LCOM+1 | |
38744 | ELSEIF(NLIN.LE.19) THEN | |
38745 | CHLIN(LLIN+1:72)=' ' | |
38746 | CHBLK(NLIN)=CHLIN | |
38747 | NLIN=NLIN+1 | |
38748 | CHLIN(6:6+LCOM+1)='&'//CHCOM(1:LCOM)//',' | |
38749 | LLIN=6+LCOM+1 | |
38750 | ELSE | |
38751 | CHLIN(LLIN:72)='/'//' ' | |
38752 | CHBLK(NLIN)=CHLIN | |
38753 | WRITE(CHTMP,5400) IDIM-NRPT | |
38754 | CHBLK(1)(30:33)=CHTMP(13:16) | |
38755 | DO 270 ILIN=1,NLIN | |
38756 | WRITE(LFN,5700) CHBLK(ILIN) | |
38757 | 270 CONTINUE | |
38758 | NLIN=1 | |
38759 | CHLIN=' ' | |
38760 | CHLIN(7:35+LCOM+1)='DATA ('//CHVAR(IVAR)// | |
38761 | & ',I= , )/'//CHCOM(1:LCOM)//',' | |
38762 | WRITE(CHTMP,5400) IDIM-NRPT+1 | |
38763 | CHLIN(25:28)=CHTMP(13:16) | |
38764 | LLIN=35+LCOM+1 | |
38765 | ENDIF | |
38766 | 280 CONTINUE | |
38767 | ||
38768 | C...Write final block of lines. | |
38769 | CHLIN(LLIN:72)='/'//' ' | |
38770 | CHBLK(NLIN)=CHLIN | |
38771 | WRITE(CHTMP,5400) NDIM | |
38772 | CHBLK(1)(30:33)=CHTMP(13:16) | |
38773 | DO 290 ILIN=1,NLIN | |
38774 | WRITE(LFN,5700) CHBLK(ILIN) | |
38775 | 290 CONTINUE | |
38776 | 300 CONTINUE | |
38777 | ENDIF | |
38778 | ||
38779 | C...Formats for reading and writing particle data. | |
38780 | 5000 FORMAT(1X,I9,2X,A16,2X,A16,3I3,3F12.5,1P,E13.5,2I3) | |
38781 | 5100 FORMAT(10X,2I5,F12.6,5I10) | |
38782 | 5200 FORMAT(A120) | |
38783 | 5300 FORMAT(I9) | |
38784 | 5400 FORMAT(I16) | |
38785 | 5500 FORMAT(F16.5) | |
38786 | 5600 FORMAT(F16.6) | |
38787 | 5700 FORMAT(A72) | |
38788 | ||
38789 | RETURN | |
38790 | END | |
38791 | ||
38792 | C********************************************************************* | |
38793 | ||
38794 | C...PYK | |
38795 | C...Provides various integer-valued event related data. | |
38796 | ||
38797 | FUNCTION PYK(I,J) | |
38798 | ||
38799 | C...Double precision and integer declarations. | |
38800 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
38801 | INTEGER PYK,PYCHGE,PYCOMP | |
38802 | C...Commonblocks. | |
38803 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
38804 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
38805 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
38806 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
38807 | ||
38808 | C...Default value. For I=0 number of entries, number of stable entries | |
38809 | C...or 3 times total charge. | |
38810 | PYK=0 | |
38811 | IF(I.LT.0.OR.I.GT.MSTU(4).OR.J.LE.0) THEN | |
38812 | ELSEIF(I.EQ.0.AND.J.EQ.1) THEN | |
38813 | PYK=N | |
38814 | ELSEIF(I.EQ.0.AND.(J.EQ.2.OR.J.EQ.6)) THEN | |
38815 | DO 100 I1=1,N | |
38816 | IF(J.EQ.2.AND.K(I1,1).GE.1.AND.K(I1,1).LE.10) PYK=PYK+1 | |
38817 | IF(J.EQ.6.AND.K(I1,1).GE.1.AND.K(I1,1).LE.10) PYK=PYK+ | |
38818 | & PYCHGE(K(I1,2)) | |
38819 | 100 CONTINUE | |
38820 | ELSEIF(I.EQ.0) THEN | |
38821 | ||
38822 | C...For I > 0 direct readout of K matrix or charge. | |
38823 | ELSEIF(J.LE.5) THEN | |
38824 | PYK=K(I,J) | |
38825 | ELSEIF(J.EQ.6) THEN | |
38826 | PYK=PYCHGE(K(I,2)) | |
38827 | ||
38828 | C...Status (existing/fragmented/decayed), parton/hadron separation. | |
38829 | ELSEIF(J.LE.8) THEN | |
38830 | IF(K(I,1).GE.1.AND.K(I,1).LE.10) PYK=1 | |
38831 | IF(J.EQ.8) PYK=PYK*K(I,2) | |
38832 | ELSEIF(J.LE.12) THEN | |
38833 | KFA=IABS(K(I,2)) | |
38834 | KC=PYCOMP(KFA) | |
38835 | KQ=0 | |
38836 | IF(KC.NE.0) KQ=KCHG(KC,2) | |
38837 | IF(J.EQ.9.AND.KC.NE.0.AND.KQ.NE.0) PYK=K(I,2) | |
38838 | IF(J.EQ.10.AND.KC.NE.0.AND.KQ.EQ.0) PYK=K(I,2) | |
38839 | IF(J.EQ.11) PYK=KC | |
38840 | IF(J.EQ.12) PYK=KQ*ISIGN(1,K(I,2)) | |
38841 | ||
38842 | C...Heaviest flavour in hadron/diquark. | |
38843 | ELSEIF(J.EQ.13) THEN | |
38844 | KFA=IABS(K(I,2)) | |
38845 | PYK=MOD(KFA/100,10)*(-1)**MOD(KFA/100,10) | |
38846 | IF(KFA.LT.10) PYK=KFA | |
38847 | IF(MOD(KFA/1000,10).NE.0) PYK=MOD(KFA/1000,10) | |
38848 | PYK=PYK*ISIGN(1,K(I,2)) | |
38849 | ||
38850 | C...Particle history: generation, ancestor, rank. | |
38851 | ELSEIF(J.LE.15) THEN | |
38852 | I2=I | |
38853 | I1=I | |
38854 | 110 PYK=PYK+1 | |
38855 | I2=I1 | |
38856 | I1=K(I1,3) | |
38857 | IF(I1.GT.0.AND.K(I1,1).GT.0.AND.K(I1,1).LE.20) GOTO 110 | |
38858 | IF(J.EQ.15) PYK=I2 | |
38859 | ELSEIF(J.EQ.16) THEN | |
38860 | KFA=IABS(K(I,2)) | |
38861 | IF(K(I,1).LE.20.AND.((KFA.GE.11.AND.KFA.LE.20).OR.KFA.EQ.22.OR. | |
38862 | & (KFA.GT.100.AND.MOD(KFA/10,10).NE.0))) THEN | |
38863 | I1=I | |
38864 | 120 I2=I1 | |
38865 | I1=K(I1,3) | |
38866 | IF(I1.GT.0) THEN | |
38867 | KFAM=IABS(K(I1,2)) | |
38868 | ILP=1 | |
38869 | IF(KFAM.NE.0.AND.KFAM.LE.10) ILP=0 | |
38870 | IF(KFAM.EQ.21.OR.KFAM.EQ.91.OR.KFAM.EQ.92.OR.KFAM.EQ.93) | |
38871 | & ILP=0 | |
38872 | IF(KFAM.GT.100.AND.MOD(KFAM/10,10).EQ.0) ILP=0 | |
38873 | IF(ILP.EQ.1) GOTO 120 | |
38874 | ENDIF | |
38875 | IF(K(I1,1).EQ.12) THEN | |
38876 | DO 130 I3=I1+1,I2 | |
38877 | IF(K(I3,3).EQ.K(I2,3).AND.K(I3,2).NE.91.AND.K(I3,2).NE.92 | |
38878 | & .AND.K(I3,2).NE.93) PYK=PYK+1 | |
38879 | 130 CONTINUE | |
38880 | ELSE | |
38881 | I3=I2 | |
38882 | 140 PYK=PYK+1 | |
38883 | I3=I3+1 | |
38884 | IF(I3.LT.N.AND.K(I3,3).EQ.K(I2,3)) GOTO 140 | |
38885 | ENDIF | |
38886 | ENDIF | |
38887 | ||
38888 | C...Particle coming from collapsing jet system or not. | |
38889 | ELSEIF(J.EQ.17) THEN | |
38890 | I1=I | |
38891 | 150 PYK=PYK+1 | |
38892 | I3=I1 | |
38893 | I1=K(I1,3) | |
38894 | I0=MAX(1,I1) | |
38895 | KC=PYCOMP(K(I0,2)) | |
38896 | IF(I1.EQ.0.OR.K(I0,1).LE.0.OR.K(I0,1).GT.20.OR.KC.EQ.0) THEN | |
38897 | IF(PYK.EQ.1) PYK=-1 | |
38898 | IF(PYK.GT.1) PYK=0 | |
38899 | RETURN | |
38900 | ENDIF | |
38901 | IF(KCHG(KC,2).EQ.0) GOTO 150 | |
38902 | IF(K(I1,1).NE.12) PYK=0 | |
38903 | IF(K(I1,1).NE.12) RETURN | |
38904 | I2=I1 | |
38905 | 160 I2=I2+1 | |
38906 | IF(I2.LT.N.AND.K(I2,1).NE.11) GOTO 160 | |
38907 | K3M=K(I3-1,3) | |
38908 | IF(K3M.GE.I1.AND.K3M.LE.I2) PYK=0 | |
38909 | K3P=K(I3+1,3) | |
38910 | IF(I3.LT.N.AND.K3P.GE.I1.AND.K3P.LE.I2) PYK=0 | |
38911 | ||
38912 | C...Number of decay products. Colour flow. | |
38913 | ELSEIF(J.EQ.18) THEN | |
38914 | IF(K(I,1).EQ.11.OR.K(I,1).EQ.12) PYK=MAX(0,K(I,5)-K(I,4)+1) | |
38915 | IF(K(I,4).EQ.0.OR.K(I,5).EQ.0) PYK=0 | |
38916 | ELSEIF(J.LE.22) THEN | |
38917 | IF(K(I,1).NE.3.AND.K(I,1).NE.13.AND.K(I,1).NE.14) RETURN | |
38918 | IF(J.EQ.19) PYK=MOD(K(I,4)/MSTU(5),MSTU(5)) | |
38919 | IF(J.EQ.20) PYK=MOD(K(I,5)/MSTU(5),MSTU(5)) | |
38920 | IF(J.EQ.21) PYK=MOD(K(I,4),MSTU(5)) | |
38921 | IF(J.EQ.22) PYK=MOD(K(I,5),MSTU(5)) | |
38922 | ELSE | |
38923 | ENDIF | |
38924 | ||
38925 | RETURN | |
38926 | END | |
38927 | ||
38928 | C********************************************************************* | |
38929 | ||
38930 | C...PYP | |
38931 | C...Provides various real-valued event related data. | |
38932 | ||
38933 | FUNCTION PYP(I,J) | |
38934 | ||
38935 | C...Double precision and integer declarations. | |
38936 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
38937 | INTEGER PYK,PYCHGE,PYCOMP | |
38938 | C...Commonblocks. | |
38939 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
38940 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
38941 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
38942 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
38943 | C...Local array. | |
38944 | DIMENSION PSUM(4) | |
38945 | ||
38946 | C...Set default value. For I = 0 sum of momenta or charges, | |
38947 | C...or invariant mass of system. | |
38948 | PYP=0D0 | |
38949 | IF(I.LT.0.OR.I.GT.MSTU(4).OR.J.LE.0) THEN | |
38950 | ELSEIF(I.EQ.0.AND.J.LE.4) THEN | |
38951 | DO 100 I1=1,N | |
38952 | IF(K(I1,1).GT.0.AND.K(I1,1).LE.10) PYP=PYP+P(I1,J) | |
38953 | 100 CONTINUE | |
38954 | ELSEIF(I.EQ.0.AND.J.EQ.5) THEN | |
38955 | DO 120 J1=1,4 | |
38956 | PSUM(J1)=0D0 | |
38957 | DO 110 I1=1,N | |
38958 | IF(K(I1,1).GT.0.AND.K(I1,1).LE.10) PSUM(J1)=PSUM(J1)+ | |
38959 | & P(I1,J1) | |
38960 | 110 CONTINUE | |
38961 | 120 CONTINUE | |
38962 | PYP=SQRT(MAX(0D0,PSUM(4)**2-PSUM(1)**2-PSUM(2)**2-PSUM(3)**2)) | |
38963 | ELSEIF(I.EQ.0.AND.J.EQ.6) THEN | |
38964 | DO 130 I1=1,N | |
38965 | IF(K(I1,1).GT.0.AND.K(I1,1).LE.10) PYP=PYP+PYCHGE(K(I1,2))/3D0 | |
38966 | 130 CONTINUE | |
38967 | ELSEIF(I.EQ.0) THEN | |
38968 | ||
38969 | C...Direct readout of P matrix. | |
38970 | ELSEIF(J.LE.5) THEN | |
38971 | PYP=P(I,J) | |
38972 | ||
38973 | C...Charge, total momentum, transverse momentum, transverse mass. | |
38974 | ELSEIF(J.LE.12) THEN | |
38975 | IF(J.EQ.6) PYP=PYCHGE(K(I,2))/3D0 | |
38976 | IF(J.EQ.7.OR.J.EQ.8) PYP=P(I,1)**2+P(I,2)**2+P(I,3)**2 | |
38977 | IF(J.EQ.9.OR.J.EQ.10) PYP=P(I,1)**2+P(I,2)**2 | |
38978 | IF(J.EQ.11.OR.J.EQ.12) PYP=P(I,5)**2+P(I,1)**2+P(I,2)**2 | |
38979 | IF(J.EQ.8.OR.J.EQ.10.OR.J.EQ.12) PYP=SQRT(PYP) | |
38980 | ||
38981 | C...Theta and phi angle in radians or degrees. | |
38982 | ELSEIF(J.LE.16) THEN | |
38983 | IF(J.LE.14) PYP=PYANGL(P(I,3),SQRT(P(I,1)**2+P(I,2)**2)) | |
38984 | IF(J.GE.15) PYP=PYANGL(P(I,1),P(I,2)) | |
38985 | IF(J.EQ.14.OR.J.EQ.16) PYP=PYP*180D0/PARU(1) | |
38986 | ||
38987 | C...True rapidity, rapidity with pion mass, pseudorapidity. | |
38988 | ELSEIF(J.LE.19) THEN | |
38989 | PMR=0D0 | |
38990 | IF(J.EQ.17) PMR=P(I,5) | |
38991 | IF(J.EQ.18) PMR=PYMASS(211) | |
38992 | PR=MAX(1D-20,PMR**2+P(I,1)**2+P(I,2)**2) | |
38993 | PYP=SIGN(LOG(MIN((SQRT(PR+P(I,3)**2)+ABS(P(I,3)))/SQRT(PR), | |
38994 | & 1D20)),P(I,3)) | |
38995 | ||
38996 | C...Energy and momentum fractions (only to be used in CM frame). | |
38997 | ELSEIF(J.LE.25) THEN | |
38998 | IF(J.EQ.20) PYP=2D0*SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2)/PARU(21) | |
38999 | IF(J.EQ.21) PYP=2D0*P(I,3)/PARU(21) | |
39000 | IF(J.EQ.22) PYP=2D0*SQRT(P(I,1)**2+P(I,2)**2)/PARU(21) | |
39001 | IF(J.EQ.23) PYP=2D0*P(I,4)/PARU(21) | |
39002 | IF(J.EQ.24) PYP=(P(I,4)+P(I,3))/PARU(21) | |
39003 | IF(J.EQ.25) PYP=(P(I,4)-P(I,3))/PARU(21) | |
39004 | ENDIF | |
39005 | ||
39006 | RETURN | |
39007 | END | |
39008 | ||
39009 | C********************************************************************* | |
39010 | ||
39011 | C...PYSPHE | |
39012 | C...Performs sphericity tensor analysis to give sphericity, | |
39013 | C...aplanarity and the related event axes. | |
39014 | ||
39015 | SUBROUTINE PYSPHE(SPH,APL) | |
39016 | ||
39017 | C...Double precision and integer declarations. | |
39018 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
39019 | INTEGER PYK,PYCHGE,PYCOMP | |
39020 | C...Commonblocks. | |
39021 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
39022 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
39023 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
39024 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
39025 | C...Local arrays. | |
39026 | DIMENSION SM(3,3),SV(3,3) | |
39027 | ||
39028 | C...Calculate matrix to be diagonalized. | |
39029 | NP=0 | |
39030 | DO 110 J1=1,3 | |
39031 | DO 100 J2=J1,3 | |
39032 | SM(J1,J2)=0D0 | |
39033 | 100 CONTINUE | |
39034 | 110 CONTINUE | |
39035 | PS=0D0 | |
39036 | DO 140 I=1,N | |
39037 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 140 | |
39038 | IF(MSTU(41).GE.2) THEN | |
39039 | KC=PYCOMP(K(I,2)) | |
39040 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
39041 | & KC.EQ.18) GOTO 140 | |
39042 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) | |
39043 | & GOTO 140 | |
39044 | ENDIF | |
39045 | NP=NP+1 | |
39046 | PA=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39047 | PWT=1D0 | |
39048 | IF(ABS(PARU(41)-2D0).GT.0.001D0) PWT= | |
39049 | & MAX(1D-10,PA)**(PARU(41)-2D0) | |
39050 | DO 130 J1=1,3 | |
39051 | DO 120 J2=J1,3 | |
39052 | SM(J1,J2)=SM(J1,J2)+PWT*P(I,J1)*P(I,J2) | |
39053 | 120 CONTINUE | |
39054 | 130 CONTINUE | |
39055 | PS=PS+PWT*PA**2 | |
39056 | 140 CONTINUE | |
39057 | ||
39058 | C...Very low multiplicities (0 or 1) not considered. | |
39059 | IF(NP.LE.1) THEN | |
39060 | CALL PYERRM(8,'(PYSPHE:) too few particles for analysis') | |
39061 | SPH=-1D0 | |
39062 | APL=-1D0 | |
39063 | RETURN | |
39064 | ENDIF | |
39065 | DO 160 J1=1,3 | |
39066 | DO 150 J2=J1,3 | |
39067 | SM(J1,J2)=SM(J1,J2)/PS | |
39068 | 150 CONTINUE | |
39069 | 160 CONTINUE | |
39070 | ||
39071 | C...Find eigenvalues to matrix (third degree equation). | |
39072 | SQ=(SM(1,1)*SM(2,2)+SM(1,1)*SM(3,3)+SM(2,2)*SM(3,3)- | |
39073 | &SM(1,2)**2-SM(1,3)**2-SM(2,3)**2)/3D0-1D0/9D0 | |
39074 | SR=-0.5D0*(SQ+1D0/9D0+SM(1,1)*SM(2,3)**2+SM(2,2)*SM(1,3)**2+ | |
39075 | &SM(3,3)*SM(1,2)**2-SM(1,1)*SM(2,2)*SM(3,3))+ | |
39076 | &SM(1,2)*SM(1,3)*SM(2,3)+1D0/27D0 | |
39077 | SP=COS(ACOS(MAX(MIN(SR/SQRT(-SQ**3),1D0),-1D0))/3D0) | |
39078 | P(N+1,4)=1D0/3D0+SQRT(-SQ)*MAX(2D0*SP,SQRT(3D0*(1D0-SP**2))-SP) | |
39079 | P(N+3,4)=1D0/3D0+SQRT(-SQ)*MIN(2D0*SP,-SQRT(3D0*(1D0-SP**2))-SP) | |
39080 | P(N+2,4)=1D0-P(N+1,4)-P(N+3,4) | |
39081 | IF(P(N+2,4).LT.1D-5) THEN | |
39082 | CALL PYERRM(8,'(PYSPHE:) all particles back-to-back') | |
39083 | SPH=-1D0 | |
39084 | APL=-1D0 | |
39085 | RETURN | |
39086 | ENDIF | |
39087 | ||
39088 | C...Find first and last eigenvector by solving equation system. | |
39089 | DO 240 I=1,3,2 | |
39090 | DO 180 J1=1,3 | |
39091 | SV(J1,J1)=SM(J1,J1)-P(N+I,4) | |
39092 | DO 170 J2=J1+1,3 | |
39093 | SV(J1,J2)=SM(J1,J2) | |
39094 | SV(J2,J1)=SM(J1,J2) | |
39095 | 170 CONTINUE | |
39096 | 180 CONTINUE | |
39097 | SMAX=0D0 | |
39098 | DO 200 J1=1,3 | |
39099 | DO 190 J2=1,3 | |
39100 | IF(ABS(SV(J1,J2)).LE.SMAX) GOTO 190 | |
39101 | JA=J1 | |
39102 | JB=J2 | |
39103 | SMAX=ABS(SV(J1,J2)) | |
39104 | 190 CONTINUE | |
39105 | 200 CONTINUE | |
39106 | SMAX=0D0 | |
39107 | DO 220 J3=JA+1,JA+2 | |
39108 | J1=J3-3*((J3-1)/3) | |
39109 | RL=SV(J1,JB)/SV(JA,JB) | |
39110 | DO 210 J2=1,3 | |
39111 | SV(J1,J2)=SV(J1,J2)-RL*SV(JA,J2) | |
39112 | IF(ABS(SV(J1,J2)).LE.SMAX) GOTO 210 | |
39113 | JC=J1 | |
39114 | SMAX=ABS(SV(J1,J2)) | |
39115 | 210 CONTINUE | |
39116 | 220 CONTINUE | |
39117 | JB1=JB+1-3*(JB/3) | |
39118 | JB2=JB+2-3*((JB+1)/3) | |
39119 | P(N+I,JB1)=-SV(JC,JB2) | |
39120 | P(N+I,JB2)=SV(JC,JB1) | |
39121 | P(N+I,JB)=-(SV(JA,JB1)*P(N+I,JB1)+SV(JA,JB2)*P(N+I,JB2))/ | |
39122 | & SV(JA,JB) | |
39123 | PA=SQRT(P(N+I,1)**2+P(N+I,2)**2+P(N+I,3)**2) | |
39124 | SGN=(-1D0)**INT(PYR(0)+0.5D0) | |
39125 | DO 230 J=1,3 | |
39126 | P(N+I,J)=SGN*P(N+I,J)/PA | |
39127 | 230 CONTINUE | |
39128 | 240 CONTINUE | |
39129 | ||
39130 | C...Middle axis orthogonal to other two. Fill other codes. | |
39131 | SGN=(-1D0)**INT(PYR(0)+0.5D0) | |
39132 | P(N+2,1)=SGN*(P(N+1,2)*P(N+3,3)-P(N+1,3)*P(N+3,2)) | |
39133 | P(N+2,2)=SGN*(P(N+1,3)*P(N+3,1)-P(N+1,1)*P(N+3,3)) | |
39134 | P(N+2,3)=SGN*(P(N+1,1)*P(N+3,2)-P(N+1,2)*P(N+3,1)) | |
39135 | DO 260 I=1,3 | |
39136 | K(N+I,1)=31 | |
39137 | K(N+I,2)=95 | |
39138 | K(N+I,3)=I | |
39139 | K(N+I,4)=0 | |
39140 | K(N+I,5)=0 | |
39141 | P(N+I,5)=0D0 | |
39142 | DO 250 J=1,5 | |
39143 | V(I,J)=0D0 | |
39144 | 250 CONTINUE | |
39145 | 260 CONTINUE | |
39146 | ||
39147 | C...Calculate sphericity and aplanarity. Select storing option. | |
39148 | SPH=1.5D0*(P(N+2,4)+P(N+3,4)) | |
39149 | APL=1.5D0*P(N+3,4) | |
39150 | MSTU(61)=N+1 | |
39151 | MSTU(62)=NP | |
39152 | IF(MSTU(43).LE.1) MSTU(3)=3 | |
39153 | IF(MSTU(43).GE.2) N=N+3 | |
39154 | ||
39155 | RETURN | |
39156 | END | |
39157 | ||
39158 | C********************************************************************* | |
39159 | ||
39160 | C...PYTHRU | |
39161 | C...Performs thrust analysis to give thrust, oblateness | |
39162 | C...and the related event axes. | |
39163 | ||
39164 | SUBROUTINE PYTHRU(THR,OBL) | |
39165 | ||
39166 | C...Double precision and integer declarations. | |
39167 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
39168 | INTEGER PYK,PYCHGE,PYCOMP | |
39169 | C...Commonblocks. | |
39170 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
39171 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
39172 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
39173 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
39174 | C...Local arrays. | |
39175 | DIMENSION TDI(3),TPR(3) | |
39176 | ||
39177 | C...Take copy of particles that are to be considered in thrust analysis. | |
39178 | NP=0 | |
39179 | PS=0D0 | |
39180 | DO 100 I=1,N | |
39181 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 100 | |
39182 | IF(MSTU(41).GE.2) THEN | |
39183 | KC=PYCOMP(K(I,2)) | |
39184 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
39185 | & KC.EQ.18) GOTO 100 | |
39186 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) | |
39187 | & GOTO 100 | |
39188 | ENDIF | |
39189 | IF(N+NP+MSTU(44)+15.GE.MSTU(4)-MSTU(32)-5) THEN | |
39190 | CALL PYERRM(11,'(PYTHRU:) no more memory left in PYJETS') | |
39191 | THR=-2D0 | |
39192 | OBL=-2D0 | |
39193 | RETURN | |
39194 | ENDIF | |
39195 | NP=NP+1 | |
39196 | K(N+NP,1)=23 | |
39197 | P(N+NP,1)=P(I,1) | |
39198 | P(N+NP,2)=P(I,2) | |
39199 | P(N+NP,3)=P(I,3) | |
39200 | P(N+NP,4)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39201 | P(N+NP,5)=1D0 | |
39202 | IF(ABS(PARU(42)-1D0).GT.0.001D0) P(N+NP,5)= | |
39203 | & P(N+NP,4)**(PARU(42)-1D0) | |
39204 | PS=PS+P(N+NP,4)*P(N+NP,5) | |
39205 | 100 CONTINUE | |
39206 | ||
39207 | C...Very low multiplicities (0 or 1) not considered. | |
39208 | IF(NP.LE.1) THEN | |
39209 | CALL PYERRM(8,'(PYTHRU:) too few particles for analysis') | |
39210 | THR=-1D0 | |
39211 | OBL=-1D0 | |
39212 | RETURN | |
39213 | ENDIF | |
39214 | ||
39215 | C...Loop over thrust and major. T axis along z direction in latter case. | |
39216 | DO 320 ILD=1,2 | |
39217 | IF(ILD.EQ.2) THEN | |
39218 | K(N+NP+1,1)=31 | |
39219 | PHI=PYANGL(P(N+NP+1,1),P(N+NP+1,2)) | |
39220 | MSTU(33)=1 | |
39221 | CALL PYROBO(N+1,N+NP+1,0D0,-PHI,0D0,0D0,0D0) | |
39222 | THE=PYANGL(P(N+NP+1,3),P(N+NP+1,1)) | |
39223 | CALL PYROBO(N+1,N+NP+1,-THE,0D0,0D0,0D0,0D0) | |
39224 | ENDIF | |
39225 | ||
39226 | C...Find and order particles with highest p (pT for major). | |
39227 | DO 110 ILF=N+NP+4,N+NP+MSTU(44)+4 | |
39228 | P(ILF,4)=0D0 | |
39229 | 110 CONTINUE | |
39230 | DO 160 I=N+1,N+NP | |
39231 | IF(ILD.EQ.2) P(I,4)=SQRT(P(I,1)**2+P(I,2)**2) | |
39232 | DO 130 ILF=N+NP+MSTU(44)+3,N+NP+4,-1 | |
39233 | IF(P(I,4).LE.P(ILF,4)) GOTO 140 | |
39234 | DO 120 J=1,5 | |
39235 | P(ILF+1,J)=P(ILF,J) | |
39236 | 120 CONTINUE | |
39237 | 130 CONTINUE | |
39238 | ILF=N+NP+3 | |
39239 | 140 DO 150 J=1,5 | |
39240 | P(ILF+1,J)=P(I,J) | |
39241 | 150 CONTINUE | |
39242 | 160 CONTINUE | |
39243 | ||
39244 | C...Find and order initial axes with highest thrust (major). | |
39245 | DO 170 ILG=N+NP+MSTU(44)+5,N+NP+MSTU(44)+15 | |
39246 | P(ILG,4)=0D0 | |
39247 | 170 CONTINUE | |
39248 | NC=2**(MIN(MSTU(44),NP)-1) | |
39249 | DO 250 ILC=1,NC | |
39250 | DO 180 J=1,3 | |
39251 | TDI(J)=0D0 | |
39252 | 180 CONTINUE | |
39253 | DO 200 ILF=1,MIN(MSTU(44),NP) | |
39254 | SGN=P(N+NP+ILF+3,5) | |
39255 | IF(2**ILF*((ILC+2**(ILF-1)-1)/2**ILF).GE.ILC) SGN=-SGN | |
39256 | DO 190 J=1,4-ILD | |
39257 | TDI(J)=TDI(J)+SGN*P(N+NP+ILF+3,J) | |
39258 | 190 CONTINUE | |
39259 | 200 CONTINUE | |
39260 | TDS=TDI(1)**2+TDI(2)**2+TDI(3)**2 | |
39261 | DO 220 ILG=N+NP+MSTU(44)+MIN(ILC,10)+4,N+NP+MSTU(44)+5,-1 | |
39262 | IF(TDS.LE.P(ILG,4)) GOTO 230 | |
39263 | DO 210 J=1,4 | |
39264 | P(ILG+1,J)=P(ILG,J) | |
39265 | 210 CONTINUE | |
39266 | 220 CONTINUE | |
39267 | ILG=N+NP+MSTU(44)+4 | |
39268 | 230 DO 240 J=1,3 | |
39269 | P(ILG+1,J)=TDI(J) | |
39270 | 240 CONTINUE | |
39271 | P(ILG+1,4)=TDS | |
39272 | 250 CONTINUE | |
39273 | ||
39274 | C...Iterate direction of axis until stable maximum. | |
39275 | P(N+NP+ILD,4)=0D0 | |
39276 | ILG=0 | |
39277 | 260 ILG=ILG+1 | |
39278 | THP=0D0 | |
39279 | 270 THPS=THP | |
39280 | DO 280 J=1,3 | |
39281 | IF(THP.LE.1D-10) TDI(J)=P(N+NP+MSTU(44)+4+ILG,J) | |
39282 | IF(THP.GT.1D-10) TDI(J)=TPR(J) | |
39283 | TPR(J)=0D0 | |
39284 | 280 CONTINUE | |
39285 | DO 300 I=N+1,N+NP | |
39286 | SGN=SIGN(P(I,5),TDI(1)*P(I,1)+TDI(2)*P(I,2)+TDI(3)*P(I,3)) | |
39287 | DO 290 J=1,4-ILD | |
39288 | TPR(J)=TPR(J)+SGN*P(I,J) | |
39289 | 290 CONTINUE | |
39290 | 300 CONTINUE | |
39291 | THP=SQRT(TPR(1)**2+TPR(2)**2+TPR(3)**2)/PS | |
39292 | IF(THP.GE.THPS+PARU(48)) GOTO 270 | |
39293 | ||
39294 | C...Save good axis. Try new initial axis until a number of tries agree. | |
39295 | IF(THP.LT.P(N+NP+ILD,4)-PARU(48).AND.ILG.LT.MIN(10,NC)) GOTO 260 | |
39296 | IF(THP.GT.P(N+NP+ILD,4)+PARU(48)) THEN | |
39297 | IAGR=0 | |
39298 | SGN=(-1D0)**INT(PYR(0)+0.5D0) | |
39299 | DO 310 J=1,3 | |
39300 | P(N+NP+ILD,J)=SGN*TPR(J)/(PS*THP) | |
39301 | 310 CONTINUE | |
39302 | P(N+NP+ILD,4)=THP | |
39303 | P(N+NP+ILD,5)=0D0 | |
39304 | ENDIF | |
39305 | IAGR=IAGR+1 | |
39306 | IF(IAGR.LT.MSTU(45).AND.ILG.LT.MIN(10,NC)) GOTO 260 | |
39307 | 320 CONTINUE | |
39308 | ||
39309 | C...Find minor axis and value by orthogonality. | |
39310 | SGN=(-1D0)**INT(PYR(0)+0.5D0) | |
39311 | P(N+NP+3,1)=-SGN*P(N+NP+2,2) | |
39312 | P(N+NP+3,2)=SGN*P(N+NP+2,1) | |
39313 | P(N+NP+3,3)=0D0 | |
39314 | THP=0D0 | |
39315 | DO 330 I=N+1,N+NP | |
39316 | THP=THP+P(I,5)*ABS(P(N+NP+3,1)*P(I,1)+P(N+NP+3,2)*P(I,2)) | |
39317 | 330 CONTINUE | |
39318 | P(N+NP+3,4)=THP/PS | |
39319 | P(N+NP+3,5)=0D0 | |
39320 | ||
39321 | C...Fill axis information. Rotate back to original coordinate system. | |
39322 | DO 350 ILD=1,3 | |
39323 | K(N+ILD,1)=31 | |
39324 | K(N+ILD,2)=96 | |
39325 | K(N+ILD,3)=ILD | |
39326 | K(N+ILD,4)=0 | |
39327 | K(N+ILD,5)=0 | |
39328 | DO 340 J=1,5 | |
39329 | P(N+ILD,J)=P(N+NP+ILD,J) | |
39330 | V(N+ILD,J)=0D0 | |
39331 | 340 CONTINUE | |
39332 | 350 CONTINUE | |
39333 | CALL PYROBO(N+1,N+3,THE,PHI,0D0,0D0,0D0) | |
39334 | ||
39335 | C...Calculate thrust and oblateness. Select storing option. | |
39336 | THR=P(N+1,4) | |
39337 | OBL=P(N+2,4)-P(N+3,4) | |
39338 | MSTU(61)=N+1 | |
39339 | MSTU(62)=NP | |
39340 | IF(MSTU(43).LE.1) MSTU(3)=3 | |
39341 | IF(MSTU(43).GE.2) N=N+3 | |
39342 | ||
39343 | RETURN | |
39344 | END | |
39345 | ||
39346 | C********************************************************************* | |
39347 | ||
39348 | C...PYCLUS | |
39349 | C...Subdivides the particle content of an event into jets/clusters. | |
39350 | ||
39351 | SUBROUTINE PYCLUS(NJET) | |
39352 | ||
39353 | C...Double precision and integer declarations. | |
39354 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
39355 | INTEGER PYK,PYCHGE,PYCOMP | |
39356 | C...Commonblocks. | |
39357 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
39358 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
39359 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
39360 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
39361 | C...Local arrays and saved variables. | |
39362 | DIMENSION PS(5) | |
39363 | SAVE NSAV,NP,PS,PSS,RINIT,NPRE,NREM | |
39364 | ||
39365 | C...Functions: distance measure in pT, (pseudo)mass or Durham pT. | |
39366 | R2T(I1,I2)=(P(I1,5)*P(I2,5)-P(I1,1)*P(I2,1)-P(I1,2)*P(I2,2)- | |
39367 | &P(I1,3)*P(I2,3))*2D0*P(I1,5)*P(I2,5)/(0.0001D0+P(I1,5)+P(I2,5))**2 | |
39368 | R2M(I1,I2)=2D0*P(I1,4)*P(I2,4)*(1D0-(P(I1,1)*P(I2,1)+P(I1,2)* | |
39369 | &P(I2,2)+P(I1,3)*P(I2,3))/(P(I1,5)*P(I2,5))) | |
39370 | R2D(I1,I2)=2D0*MIN(P(I1,4),P(I2,4))**2*(1D0-(P(I1,1)*P(I2,1)+ | |
39371 | &P(I1,2)*P(I2,2)+P(I1,3)*P(I2,3))/(P(I1,5)*P(I2,5))) | |
39372 | ||
39373 | C...If first time, reset. If reentering, skip preliminaries. | |
39374 | IF(MSTU(48).LE.0) THEN | |
39375 | NP=0 | |
39376 | DO 100 J=1,5 | |
39377 | PS(J)=0D0 | |
39378 | 100 CONTINUE | |
39379 | PSS=0D0 | |
39380 | PIMASS=PMAS(PYCOMP(211),1) | |
39381 | ELSE | |
39382 | NJET=NSAV | |
39383 | IF(MSTU(43).GE.2) N=N-NJET | |
39384 | DO 110 I=N+1,N+NJET | |
39385 | P(I,5)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39386 | 110 CONTINUE | |
39387 | IF(MSTU(46).LE.3.OR.MSTU(46).EQ.5) THEN | |
39388 | R2ACC=PARU(44)**2 | |
39389 | ELSE | |
39390 | R2ACC=PARU(45)*PS(5)**2 | |
39391 | ENDIF | |
39392 | NLOOP=0 | |
39393 | GOTO 300 | |
39394 | ENDIF | |
39395 | ||
39396 | C...Find which particles are to be considered in cluster search. | |
39397 | DO 140 I=1,N | |
39398 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 140 | |
39399 | IF(MSTU(41).GE.2) THEN | |
39400 | KC=PYCOMP(K(I,2)) | |
39401 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
39402 | & KC.EQ.18) GOTO 140 | |
39403 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) | |
39404 | & GOTO 140 | |
39405 | ENDIF | |
39406 | IF(N+2*NP.GE.MSTU(4)-MSTU(32)-5) THEN | |
39407 | CALL PYERRM(11,'(PYCLUS:) no more memory left in PYJETS') | |
39408 | NJET=-1 | |
39409 | RETURN | |
39410 | ENDIF | |
39411 | ||
39412 | C...Take copy of these particles, with space left for jets later on. | |
39413 | NP=NP+1 | |
39414 | K(N+NP,3)=I | |
39415 | DO 120 J=1,5 | |
39416 | P(N+NP,J)=P(I,J) | |
39417 | 120 CONTINUE | |
39418 | IF(MSTU(42).EQ.0) P(N+NP,5)=0D0 | |
39419 | IF(MSTU(42).EQ.1.AND.K(I,2).NE.22) P(N+NP,5)=PIMASS | |
39420 | P(N+NP,4)=SQRT(P(N+NP,5)**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39421 | P(N+NP,5)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39422 | DO 130 J=1,4 | |
39423 | PS(J)=PS(J)+P(N+NP,J) | |
39424 | 130 CONTINUE | |
39425 | PSS=PSS+P(N+NP,5) | |
39426 | 140 CONTINUE | |
39427 | DO 160 I=N+1,N+NP | |
39428 | K(I+NP,3)=K(I,3) | |
39429 | DO 150 J=1,5 | |
39430 | P(I+NP,J)=P(I,J) | |
39431 | 150 CONTINUE | |
39432 | 160 CONTINUE | |
39433 | PS(5)=SQRT(MAX(0D0,PS(4)**2-PS(1)**2-PS(2)**2-PS(3)**2)) | |
39434 | ||
39435 | C...Very low multiplicities not considered. | |
39436 | IF(NP.LT.MSTU(47)) THEN | |
39437 | CALL PYERRM(8,'(PYCLUS:) too few particles for analysis') | |
39438 | NJET=-1 | |
39439 | RETURN | |
39440 | ENDIF | |
39441 | ||
39442 | C...Find precluster configuration. If too few jets, make harder cuts. | |
39443 | NLOOP=0 | |
39444 | IF(MSTU(46).LE.3.OR.MSTU(46).EQ.5) THEN | |
39445 | R2ACC=PARU(44)**2 | |
39446 | ELSE | |
39447 | R2ACC=PARU(45)*PS(5)**2 | |
39448 | ENDIF | |
39449 | RINIT=1.25D0*PARU(43) | |
39450 | IF(NP.LE.MSTU(47)+2) RINIT=0D0 | |
39451 | 170 RINIT=0.8D0*RINIT | |
39452 | NPRE=0 | |
39453 | NREM=NP | |
39454 | DO 180 I=N+NP+1,N+2*NP | |
39455 | K(I,4)=0 | |
39456 | 180 CONTINUE | |
39457 | ||
39458 | C...Sum up small momentum region. Jet if enough absolute momentum. | |
39459 | IF(MSTU(46).LE.2) THEN | |
39460 | DO 190 J=1,4 | |
39461 | P(N+1,J)=0D0 | |
39462 | 190 CONTINUE | |
39463 | DO 210 I=N+NP+1,N+2*NP | |
39464 | IF(P(I,5).GT.2D0*RINIT) GOTO 210 | |
39465 | NREM=NREM-1 | |
39466 | K(I,4)=1 | |
39467 | DO 200 J=1,4 | |
39468 | P(N+1,J)=P(N+1,J)+P(I,J) | |
39469 | 200 CONTINUE | |
39470 | 210 CONTINUE | |
39471 | P(N+1,5)=SQRT(P(N+1,1)**2+P(N+1,2)**2+P(N+1,3)**2) | |
39472 | IF(P(N+1,5).GT.2D0*RINIT) NPRE=1 | |
39473 | IF(RINIT.GE.0.2D0*PARU(43).AND.NPRE+NREM.LT.MSTU(47)) GOTO 170 | |
39474 | IF(NREM.EQ.0) GOTO 170 | |
39475 | ENDIF | |
39476 | ||
39477 | C...Find fastest remaining particle. | |
39478 | 220 NPRE=NPRE+1 | |
39479 | PMAX=0D0 | |
39480 | DO 230 I=N+NP+1,N+2*NP | |
39481 | IF(K(I,4).NE.0.OR.P(I,5).LE.PMAX) GOTO 230 | |
39482 | IMAX=I | |
39483 | PMAX=P(I,5) | |
39484 | 230 CONTINUE | |
39485 | DO 240 J=1,5 | |
39486 | P(N+NPRE,J)=P(IMAX,J) | |
39487 | 240 CONTINUE | |
39488 | NREM=NREM-1 | |
39489 | K(IMAX,4)=NPRE | |
39490 | ||
39491 | C...Sum up precluster around it according to pT separation. | |
39492 | IF(MSTU(46).LE.2) THEN | |
39493 | DO 260 I=N+NP+1,N+2*NP | |
39494 | IF(K(I,4).NE.0) GOTO 260 | |
39495 | R2=R2T(I,IMAX) | |
39496 | IF(R2.GT.RINIT**2) GOTO 260 | |
39497 | NREM=NREM-1 | |
39498 | K(I,4)=NPRE | |
39499 | DO 250 J=1,4 | |
39500 | P(N+NPRE,J)=P(N+NPRE,J)+P(I,J) | |
39501 | 250 CONTINUE | |
39502 | 260 CONTINUE | |
39503 | P(N+NPRE,5)=SQRT(P(N+NPRE,1)**2+P(N+NPRE,2)**2+P(N+NPRE,3)**2) | |
39504 | ||
39505 | C...Sum up precluster around it according to mass or | |
39506 | C...Durham pT separation. | |
39507 | ELSE | |
39508 | 270 IMIN=0 | |
39509 | R2MIN=RINIT**2 | |
39510 | DO 280 I=N+NP+1,N+2*NP | |
39511 | IF(K(I,4).NE.0) GOTO 280 | |
39512 | IF(MSTU(46).LE.4) THEN | |
39513 | R2=R2M(I,N+NPRE) | |
39514 | ELSE | |
39515 | R2=R2D(I,N+NPRE) | |
39516 | ENDIF | |
39517 | IF(R2.GE.R2MIN) GOTO 280 | |
39518 | IMIN=I | |
39519 | R2MIN=R2 | |
39520 | 280 CONTINUE | |
39521 | IF(IMIN.NE.0) THEN | |
39522 | DO 290 J=1,4 | |
39523 | P(N+NPRE,J)=P(N+NPRE,J)+P(IMIN,J) | |
39524 | 290 CONTINUE | |
39525 | P(N+NPRE,5)=SQRT(P(N+NPRE,1)**2+P(N+NPRE,2)**2+P(N+NPRE,3)**2) | |
39526 | NREM=NREM-1 | |
39527 | K(IMIN,4)=NPRE | |
39528 | GOTO 270 | |
39529 | ENDIF | |
39530 | ENDIF | |
39531 | ||
39532 | C...Check if more preclusters to be found. Start over if too few. | |
39533 | IF(RINIT.GE.0.2D0*PARU(43).AND.NPRE+NREM.LT.MSTU(47)) GOTO 170 | |
39534 | IF(NREM.GT.0) GOTO 220 | |
39535 | NJET=NPRE | |
39536 | ||
39537 | C...Reassign all particles to nearest jet. Sum up new jet momenta. | |
39538 | 300 TSAV=0D0 | |
39539 | PSJT=0D0 | |
39540 | 310 IF(MSTU(46).LE.1) THEN | |
39541 | DO 330 I=N+1,N+NJET | |
39542 | DO 320 J=1,4 | |
39543 | V(I,J)=0D0 | |
39544 | 320 CONTINUE | |
39545 | 330 CONTINUE | |
39546 | DO 360 I=N+NP+1,N+2*NP | |
39547 | R2MIN=PSS**2 | |
39548 | DO 340 IJET=N+1,N+NJET | |
39549 | IF(P(IJET,5).LT.RINIT) GOTO 340 | |
39550 | R2=R2T(I,IJET) | |
39551 | IF(R2.GE.R2MIN) GOTO 340 | |
39552 | IMIN=IJET | |
39553 | R2MIN=R2 | |
39554 | 340 CONTINUE | |
39555 | K(I,4)=IMIN-N | |
39556 | DO 350 J=1,4 | |
39557 | V(IMIN,J)=V(IMIN,J)+P(I,J) | |
39558 | 350 CONTINUE | |
39559 | 360 CONTINUE | |
39560 | PSJT=0D0 | |
39561 | DO 380 I=N+1,N+NJET | |
39562 | DO 370 J=1,4 | |
39563 | P(I,J)=V(I,J) | |
39564 | 370 CONTINUE | |
39565 | P(I,5)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39566 | PSJT=PSJT+P(I,5) | |
39567 | 380 CONTINUE | |
39568 | ENDIF | |
39569 | ||
39570 | C...Find two closest jets. | |
39571 | R2MIN=2D0*MAX(R2ACC,PS(5)**2) | |
39572 | DO 400 ITRY1=N+1,N+NJET-1 | |
39573 | DO 390 ITRY2=ITRY1+1,N+NJET | |
39574 | IF(MSTU(46).LE.2) THEN | |
39575 | R2=R2T(ITRY1,ITRY2) | |
39576 | ELSEIF(MSTU(46).LE.4) THEN | |
39577 | R2=R2M(ITRY1,ITRY2) | |
39578 | ELSE | |
39579 | R2=R2D(ITRY1,ITRY2) | |
39580 | ENDIF | |
39581 | IF(R2.GE.R2MIN) GOTO 390 | |
39582 | IMIN1=ITRY1 | |
39583 | IMIN2=ITRY2 | |
39584 | R2MIN=R2 | |
39585 | 390 CONTINUE | |
39586 | 400 CONTINUE | |
39587 | ||
39588 | C...If allowed, join two closest jets and start over. | |
39589 | IF(NJET.GT.MSTU(47).AND.R2MIN.LT.R2ACC) THEN | |
39590 | IREC=MIN(IMIN1,IMIN2) | |
39591 | IDEL=MAX(IMIN1,IMIN2) | |
39592 | DO 410 J=1,4 | |
39593 | P(IREC,J)=P(IMIN1,J)+P(IMIN2,J) | |
39594 | 410 CONTINUE | |
39595 | P(IREC,5)=SQRT(P(IREC,1)**2+P(IREC,2)**2+P(IREC,3)**2) | |
39596 | DO 430 I=IDEL+1,N+NJET | |
39597 | DO 420 J=1,5 | |
39598 | P(I-1,J)=P(I,J) | |
39599 | 420 CONTINUE | |
39600 | 430 CONTINUE | |
39601 | IF(MSTU(46).GE.2) THEN | |
39602 | DO 440 I=N+NP+1,N+2*NP | |
39603 | IORI=N+K(I,4) | |
39604 | IF(IORI.EQ.IDEL) K(I,4)=IREC-N | |
39605 | IF(IORI.GT.IDEL) K(I,4)=K(I,4)-1 | |
39606 | 440 CONTINUE | |
39607 | ENDIF | |
39608 | NJET=NJET-1 | |
39609 | GOTO 300 | |
39610 | ||
39611 | C...Divide up broad jet if empty cluster in list of final ones. | |
39612 | ELSEIF(NJET.EQ.MSTU(47).AND.MSTU(46).LE.1.AND.NLOOP.LE.2) THEN | |
39613 | DO 450 I=N+1,N+NJET | |
39614 | K(I,5)=0 | |
39615 | 450 CONTINUE | |
39616 | DO 460 I=N+NP+1,N+2*NP | |
39617 | K(N+K(I,4),5)=K(N+K(I,4),5)+1 | |
39618 | 460 CONTINUE | |
39619 | IEMP=0 | |
39620 | DO 470 I=N+1,N+NJET | |
39621 | IF(K(I,5).EQ.0) IEMP=I | |
39622 | 470 CONTINUE | |
39623 | IF(IEMP.NE.0) THEN | |
39624 | NLOOP=NLOOP+1 | |
39625 | ISPL=0 | |
39626 | R2MAX=0D0 | |
39627 | DO 480 I=N+NP+1,N+2*NP | |
39628 | IF(K(N+K(I,4),5).LE.1.OR.P(I,5).LT.RINIT) GOTO 480 | |
39629 | IJET=N+K(I,4) | |
39630 | R2=R2T(I,IJET) | |
39631 | IF(R2.LE.R2MAX) GOTO 480 | |
39632 | ISPL=I | |
39633 | R2MAX=R2 | |
39634 | 480 CONTINUE | |
39635 | IF(ISPL.NE.0) THEN | |
39636 | IJET=N+K(ISPL,4) | |
39637 | DO 490 J=1,4 | |
39638 | P(IEMP,J)=P(ISPL,J) | |
39639 | P(IJET,J)=P(IJET,J)-P(ISPL,J) | |
39640 | 490 CONTINUE | |
39641 | P(IEMP,5)=P(ISPL,5) | |
39642 | P(IJET,5)=SQRT(P(IJET,1)**2+P(IJET,2)**2+P(IJET,3)**2) | |
39643 | IF(NLOOP.LE.2) GOTO 300 | |
39644 | ENDIF | |
39645 | ENDIF | |
39646 | ENDIF | |
39647 | ||
39648 | C...If generalized thrust has not yet converged, continue iteration. | |
39649 | IF(MSTU(46).LE.1.AND.NLOOP.LE.2.AND.PSJT/PSS.GT.TSAV+PARU(48)) | |
39650 | &THEN | |
39651 | TSAV=PSJT/PSS | |
39652 | GOTO 310 | |
39653 | ENDIF | |
39654 | ||
39655 | C...Reorder jets according to energy. | |
39656 | DO 510 I=N+1,N+NJET | |
39657 | DO 500 J=1,5 | |
39658 | V(I,J)=P(I,J) | |
39659 | 500 CONTINUE | |
39660 | 510 CONTINUE | |
39661 | DO 540 INEW=N+1,N+NJET | |
39662 | PEMAX=0D0 | |
39663 | DO 520 ITRY=N+1,N+NJET | |
39664 | IF(V(ITRY,4).LE.PEMAX) GOTO 520 | |
39665 | IMAX=ITRY | |
39666 | PEMAX=V(ITRY,4) | |
39667 | 520 CONTINUE | |
39668 | K(INEW,1)=31 | |
39669 | K(INEW,2)=97 | |
39670 | K(INEW,3)=INEW-N | |
39671 | K(INEW,4)=0 | |
39672 | DO 530 J=1,5 | |
39673 | P(INEW,J)=V(IMAX,J) | |
39674 | 530 CONTINUE | |
39675 | V(IMAX,4)=-1D0 | |
39676 | K(IMAX,5)=INEW | |
39677 | 540 CONTINUE | |
39678 | ||
39679 | C...Clean up particle-jet assignments and jet information. | |
39680 | DO 550 I=N+NP+1,N+2*NP | |
39681 | IORI=K(N+K(I,4),5) | |
39682 | K(I,4)=IORI-N | |
39683 | IF(K(K(I,3),1).NE.3) K(K(I,3),4)=IORI-N | |
39684 | K(IORI,4)=K(IORI,4)+1 | |
39685 | 550 CONTINUE | |
39686 | IEMP=0 | |
39687 | PSJT=0D0 | |
39688 | DO 570 I=N+1,N+NJET | |
39689 | K(I,5)=0 | |
39690 | PSJT=PSJT+P(I,5) | |
39691 | P(I,5)=SQRT(MAX(P(I,4)**2-P(I,5)**2,0D0)) | |
39692 | DO 560 J=1,5 | |
39693 | V(I,J)=0D0 | |
39694 | 560 CONTINUE | |
39695 | IF(K(I,4).EQ.0) IEMP=I | |
39696 | 570 CONTINUE | |
39697 | ||
39698 | C...Select storing option. Output variables. Check for failure. | |
39699 | MSTU(61)=N+1 | |
39700 | MSTU(62)=NP | |
39701 | MSTU(63)=NPRE | |
39702 | PARU(61)=PS(5) | |
39703 | PARU(62)=PSJT/PSS | |
39704 | PARU(63)=SQRT(R2MIN) | |
39705 | IF(NJET.LE.1) PARU(63)=0D0 | |
39706 | IF(IEMP.NE.0) THEN | |
39707 | CALL PYERRM(8,'(PYCLUS:) failed to reconstruct as requested') | |
39708 | NJET=-1 | |
39709 | ENDIF | |
39710 | IF(MSTU(43).LE.1) MSTU(3)=NJET | |
39711 | IF(MSTU(43).GE.2) N=N+NJET | |
39712 | NSAV=NJET | |
39713 | ||
39714 | RETURN | |
39715 | END | |
39716 | ||
39717 | C********************************************************************* | |
39718 | ||
39719 | C...PYCELL | |
39720 | C...Provides a simple way of jet finding in eta-phi-ET coordinates, | |
39721 | C...as used for calorimeters at hadron colliders. | |
39722 | ||
39723 | SUBROUTINE PYCELL(NJET) | |
39724 | ||
39725 | C...Double precision and integer declarations. | |
39726 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
39727 | INTEGER PYK,PYCHGE,PYCOMP | |
39728 | C...Commonblocks. | |
39729 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
39730 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
39731 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
39732 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
39733 | ||
39734 | C...Loop over all particles. Find cell that was hit by given particle. | |
39735 | PTLRAT=1D0/SINH(PARU(51))**2 | |
39736 | NP=0 | |
39737 | NC=N | |
39738 | DO 110 I=1,N | |
39739 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 110 | |
39740 | IF(P(I,1)**2+P(I,2)**2.LE.PTLRAT*P(I,3)**2) GOTO 110 | |
39741 | IF(MSTU(41).GE.2) THEN | |
39742 | KC=PYCOMP(K(I,2)) | |
39743 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
39744 | & KC.EQ.18) GOTO 110 | |
39745 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) | |
39746 | & GOTO 110 | |
39747 | ENDIF | |
39748 | NP=NP+1 | |
39749 | PT=SQRT(P(I,1)**2+P(I,2)**2) | |
39750 | ETA=SIGN(LOG((SQRT(PT**2+P(I,3)**2)+ABS(P(I,3)))/PT),P(I,3)) | |
39751 | IETA=MAX(1,MIN(MSTU(51),1+INT(MSTU(51)*0.5D0* | |
39752 | & (ETA/PARU(51)+1D0)))) | |
39753 | PHI=PYANGL(P(I,1),P(I,2)) | |
39754 | IPHI=MAX(1,MIN(MSTU(52),1+INT(MSTU(52)*0.5D0* | |
39755 | & (PHI/PARU(1)+1D0)))) | |
39756 | IETPH=MSTU(52)*IETA+IPHI | |
39757 | ||
39758 | C...Add to cell already hit, or book new cell. | |
39759 | DO 100 IC=N+1,NC | |
39760 | IF(IETPH.EQ.K(IC,3)) THEN | |
39761 | K(IC,4)=K(IC,4)+1 | |
39762 | P(IC,5)=P(IC,5)+PT | |
39763 | GOTO 110 | |
39764 | ENDIF | |
39765 | 100 CONTINUE | |
39766 | IF(NC.GE.MSTU(4)-MSTU(32)-5) THEN | |
39767 | CALL PYERRM(11,'(PYCELL:) no more memory left in PYJETS') | |
39768 | NJET=-2 | |
39769 | RETURN | |
39770 | ENDIF | |
39771 | NC=NC+1 | |
39772 | K(NC,3)=IETPH | |
39773 | K(NC,4)=1 | |
39774 | K(NC,5)=2 | |
39775 | P(NC,1)=(PARU(51)/MSTU(51))*(2*IETA-1-MSTU(51)) | |
39776 | P(NC,2)=(PARU(1)/MSTU(52))*(2*IPHI-1-MSTU(52)) | |
39777 | P(NC,5)=PT | |
39778 | 110 CONTINUE | |
39779 | ||
39780 | C...Smear true bin content by calorimeter resolution. | |
39781 | IF(MSTU(53).GE.1) THEN | |
39782 | DO 130 IC=N+1,NC | |
39783 | PEI=P(IC,5) | |
39784 | IF(MSTU(53).EQ.2) PEI=P(IC,5)*COSH(P(IC,1)) | |
39785 | 120 PEF=PEI+PARU(55)*SQRT(-2D0*LOG(MAX(1D-10,PYR(0)))*PEI)* | |
39786 | & COS(PARU(2)*PYR(0)) | |
39787 | IF(PEF.LT.0D0.OR.PEF.GT.PARU(56)*PEI) GOTO 120 | |
39788 | P(IC,5)=PEF | |
39789 | IF(MSTU(53).EQ.2) P(IC,5)=PEF/COSH(P(IC,1)) | |
39790 | 130 CONTINUE | |
39791 | ENDIF | |
39792 | ||
39793 | C...Remove cells below threshold. | |
39794 | IF(PARU(58).GT.0D0) THEN | |
39795 | NCC=NC | |
39796 | NC=N | |
39797 | DO 140 IC=N+1,NCC | |
39798 | IF(P(IC,5).GT.PARU(58)) THEN | |
39799 | NC=NC+1 | |
39800 | K(NC,3)=K(IC,3) | |
39801 | K(NC,4)=K(IC,4) | |
39802 | K(NC,5)=K(IC,5) | |
39803 | P(NC,1)=P(IC,1) | |
39804 | P(NC,2)=P(IC,2) | |
39805 | P(NC,5)=P(IC,5) | |
39806 | ENDIF | |
39807 | 140 CONTINUE | |
39808 | ENDIF | |
39809 | ||
39810 | C...Find initiator cell: the one with highest pT of not yet used ones. | |
39811 | NJ=NC | |
39812 | 150 ETMAX=0D0 | |
39813 | DO 160 IC=N+1,NC | |
39814 | IF(K(IC,5).NE.2) GOTO 160 | |
39815 | IF(P(IC,5).LE.ETMAX) GOTO 160 | |
39816 | ICMAX=IC | |
39817 | ETA=P(IC,1) | |
39818 | PHI=P(IC,2) | |
39819 | ETMAX=P(IC,5) | |
39820 | 160 CONTINUE | |
39821 | IF(ETMAX.LT.PARU(52)) GOTO 220 | |
39822 | IF(NJ.GE.MSTU(4)-MSTU(32)-5) THEN | |
39823 | CALL PYERRM(11,'(PYCELL:) no more memory left in PYJETS') | |
39824 | NJET=-2 | |
39825 | RETURN | |
39826 | ENDIF | |
39827 | K(ICMAX,5)=1 | |
39828 | NJ=NJ+1 | |
39829 | K(NJ,4)=0 | |
39830 | K(NJ,5)=1 | |
39831 | P(NJ,1)=ETA | |
39832 | P(NJ,2)=PHI | |
39833 | P(NJ,3)=0D0 | |
39834 | P(NJ,4)=0D0 | |
39835 | P(NJ,5)=0D0 | |
39836 | ||
39837 | C...Sum up unused cells within required distance of initiator. | |
39838 | DO 170 IC=N+1,NC | |
39839 | IF(K(IC,5).EQ.0) GOTO 170 | |
39840 | IF(ABS(P(IC,1)-ETA).GT.PARU(54)) GOTO 170 | |
39841 | DPHIA=ABS(P(IC,2)-PHI) | |
39842 | IF(DPHIA.GT.PARU(54).AND.DPHIA.LT.PARU(2)-PARU(54)) GOTO 170 | |
39843 | PHIC=P(IC,2) | |
39844 | IF(DPHIA.GT.PARU(1)) PHIC=PHIC+SIGN(PARU(2),PHI) | |
39845 | IF((P(IC,1)-ETA)**2+(PHIC-PHI)**2.GT.PARU(54)**2) GOTO 170 | |
39846 | K(IC,5)=-K(IC,5) | |
39847 | K(NJ,4)=K(NJ,4)+K(IC,4) | |
39848 | P(NJ,3)=P(NJ,3)+P(IC,5)*P(IC,1) | |
39849 | P(NJ,4)=P(NJ,4)+P(IC,5)*PHIC | |
39850 | P(NJ,5)=P(NJ,5)+P(IC,5) | |
39851 | 170 CONTINUE | |
39852 | ||
39853 | C...Reject cluster below minimum ET, else accept. | |
39854 | IF(P(NJ,5).LT.PARU(53)) THEN | |
39855 | NJ=NJ-1 | |
39856 | DO 180 IC=N+1,NC | |
39857 | IF(K(IC,5).LT.0) K(IC,5)=-K(IC,5) | |
39858 | 180 CONTINUE | |
39859 | ELSEIF(MSTU(54).LE.2) THEN | |
39860 | P(NJ,3)=P(NJ,3)/P(NJ,5) | |
39861 | P(NJ,4)=P(NJ,4)/P(NJ,5) | |
39862 | IF(ABS(P(NJ,4)).GT.PARU(1)) P(NJ,4)=P(NJ,4)-SIGN(PARU(2), | |
39863 | & P(NJ,4)) | |
39864 | DO 190 IC=N+1,NC | |
39865 | IF(K(IC,5).LT.0) K(IC,5)=0 | |
39866 | 190 CONTINUE | |
39867 | ELSE | |
39868 | DO 200 J=1,4 | |
39869 | P(NJ,J)=0D0 | |
39870 | 200 CONTINUE | |
39871 | DO 210 IC=N+1,NC | |
39872 | IF(K(IC,5).GE.0) GOTO 210 | |
39873 | P(NJ,1)=P(NJ,1)+P(IC,5)*COS(P(IC,2)) | |
39874 | P(NJ,2)=P(NJ,2)+P(IC,5)*SIN(P(IC,2)) | |
39875 | P(NJ,3)=P(NJ,3)+P(IC,5)*SINH(P(IC,1)) | |
39876 | P(NJ,4)=P(NJ,4)+P(IC,5)*COSH(P(IC,1)) | |
39877 | K(IC,5)=0 | |
39878 | 210 CONTINUE | |
39879 | ENDIF | |
39880 | GOTO 150 | |
39881 | ||
39882 | C...Arrange clusters in falling ET sequence. | |
39883 | 220 DO 250 I=1,NJ-NC | |
39884 | ETMAX=0D0 | |
39885 | DO 230 IJ=NC+1,NJ | |
39886 | IF(K(IJ,5).EQ.0) GOTO 230 | |
39887 | IF(P(IJ,5).LT.ETMAX) GOTO 230 | |
39888 | IJMAX=IJ | |
39889 | ETMAX=P(IJ,5) | |
39890 | 230 CONTINUE | |
39891 | K(IJMAX,5)=0 | |
39892 | K(N+I,1)=31 | |
39893 | K(N+I,2)=98 | |
39894 | K(N+I,3)=I | |
39895 | K(N+I,4)=K(IJMAX,4) | |
39896 | K(N+I,5)=0 | |
39897 | DO 240 J=1,5 | |
39898 | P(N+I,J)=P(IJMAX,J) | |
39899 | V(N+I,J)=0D0 | |
39900 | 240 CONTINUE | |
39901 | 250 CONTINUE | |
39902 | NJET=NJ-NC | |
39903 | ||
39904 | C...Convert to massless or massive four-vectors. | |
39905 | IF(MSTU(54).EQ.2) THEN | |
39906 | DO 260 I=N+1,N+NJET | |
39907 | ETA=P(I,3) | |
39908 | P(I,1)=P(I,5)*COS(P(I,4)) | |
39909 | P(I,2)=P(I,5)*SIN(P(I,4)) | |
39910 | P(I,3)=P(I,5)*SINH(ETA) | |
39911 | P(I,4)=P(I,5)*COSH(ETA) | |
39912 | P(I,5)=0D0 | |
39913 | 260 CONTINUE | |
39914 | ELSEIF(MSTU(54).GE.3) THEN | |
39915 | DO 270 I=N+1,N+NJET | |
39916 | P(I,5)=SQRT(MAX(0D0,P(I,4)**2-P(I,1)**2-P(I,2)**2-P(I,3)**2)) | |
39917 | 270 CONTINUE | |
39918 | ENDIF | |
39919 | ||
39920 | C...Information about storage. | |
39921 | MSTU(61)=N+1 | |
39922 | MSTU(62)=NP | |
39923 | MSTU(63)=NC-N | |
39924 | IF(MSTU(43).LE.1) MSTU(3)=NJET | |
39925 | IF(MSTU(43).GE.2) N=N+NJET | |
39926 | ||
39927 | RETURN | |
39928 | END | |
39929 | ||
39930 | C********************************************************************* | |
39931 | ||
39932 | C...PYJMAS | |
39933 | C...Determines, approximately, the two jet masses that minimize | |
39934 | C...the sum m_H^2 + m_L^2, a la Clavelli and Wyler. | |
39935 | ||
39936 | SUBROUTINE PYJMAS(PMH,PML) | |
39937 | ||
39938 | C...Double precision and integer declarations. | |
39939 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
39940 | INTEGER PYK,PYCHGE,PYCOMP | |
39941 | C...Commonblocks. | |
39942 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
39943 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
39944 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
39945 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
39946 | C...Local arrays. | |
39947 | DIMENSION SM(3,3),SAX(3),PS(3,5) | |
39948 | ||
39949 | C...Reset. | |
39950 | NP=0 | |
39951 | DO 120 J1=1,3 | |
39952 | DO 100 J2=J1,3 | |
39953 | SM(J1,J2)=0D0 | |
39954 | 100 CONTINUE | |
39955 | DO 110 J2=1,4 | |
39956 | PS(J1,J2)=0D0 | |
39957 | 110 CONTINUE | |
39958 | 120 CONTINUE | |
39959 | PSS=0D0 | |
39960 | PIMASS=PMAS(PYCOMP(211),1) | |
39961 | ||
39962 | C...Take copy of particles that are to be considered in mass analysis. | |
39963 | DO 170 I=1,N | |
39964 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 170 | |
39965 | IF(MSTU(41).GE.2) THEN | |
39966 | KC=PYCOMP(K(I,2)) | |
39967 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
39968 | & KC.EQ.18) GOTO 170 | |
39969 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) | |
39970 | & GOTO 170 | |
39971 | ENDIF | |
39972 | IF(N+NP+1.GE.MSTU(4)-MSTU(32)-5) THEN | |
39973 | CALL PYERRM(11,'(PYJMAS:) no more memory left in PYJETS') | |
39974 | PMH=-2D0 | |
39975 | PML=-2D0 | |
39976 | RETURN | |
39977 | ENDIF | |
39978 | NP=NP+1 | |
39979 | DO 130 J=1,5 | |
39980 | P(N+NP,J)=P(I,J) | |
39981 | 130 CONTINUE | |
39982 | IF(MSTU(42).EQ.0) P(N+NP,5)=0D0 | |
39983 | IF(MSTU(42).EQ.1.AND.K(I,2).NE.22) P(N+NP,5)=PIMASS | |
39984 | P(N+NP,4)=SQRT(P(N+NP,5)**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39985 | ||
39986 | C...Fill information in sphericity tensor and total momentum vector. | |
39987 | DO 150 J1=1,3 | |
39988 | DO 140 J2=J1,3 | |
39989 | SM(J1,J2)=SM(J1,J2)+P(I,J1)*P(I,J2) | |
39990 | 140 CONTINUE | |
39991 | 150 CONTINUE | |
39992 | PSS=PSS+(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
39993 | DO 160 J=1,4 | |
39994 | PS(3,J)=PS(3,J)+P(N+NP,J) | |
39995 | 160 CONTINUE | |
39996 | 170 CONTINUE | |
39997 | ||
39998 | C...Very low multiplicities (0 or 1) not considered. | |
39999 | IF(NP.LE.1) THEN | |
40000 | CALL PYERRM(8,'(PYJMAS:) too few particles for analysis') | |
40001 | PMH=-1D0 | |
40002 | PML=-1D0 | |
40003 | RETURN | |
40004 | ENDIF | |
40005 | PARU(61)=SQRT(MAX(0D0,PS(3,4)**2-PS(3,1)**2-PS(3,2)**2- | |
40006 | &PS(3,3)**2)) | |
40007 | ||
40008 | C...Find largest eigenvalue to matrix (third degree equation). | |
40009 | DO 190 J1=1,3 | |
40010 | DO 180 J2=J1,3 | |
40011 | SM(J1,J2)=SM(J1,J2)/PSS | |
40012 | 180 CONTINUE | |
40013 | 190 CONTINUE | |
40014 | SQ=(SM(1,1)*SM(2,2)+SM(1,1)*SM(3,3)+SM(2,2)*SM(3,3)- | |
40015 | &SM(1,2)**2-SM(1,3)**2-SM(2,3)**2)/3D0-1D0/9D0 | |
40016 | SR=-0.5D0*(SQ+1D0/9D0+SM(1,1)*SM(2,3)**2+SM(2,2)*SM(1,3)**2+ | |
40017 | &SM(3,3)*SM(1,2)**2-SM(1,1)*SM(2,2)*SM(3,3))+ | |
40018 | &SM(1,2)*SM(1,3)*SM(2,3)+1D0/27D0 | |
40019 | SP=COS(ACOS(MAX(MIN(SR/SQRT(-SQ**3),1D0),-1D0))/3D0) | |
40020 | SMA=1D0/3D0+SQRT(-SQ)*MAX(2D0*SP,SQRT(3D0*(1D0-SP**2))-SP) | |
40021 | ||
40022 | C...Find largest eigenvector by solving equation system. | |
40023 | DO 210 J1=1,3 | |
40024 | SM(J1,J1)=SM(J1,J1)-SMA | |
40025 | DO 200 J2=J1+1,3 | |
40026 | SM(J2,J1)=SM(J1,J2) | |
40027 | 200 CONTINUE | |
40028 | 210 CONTINUE | |
40029 | SMAX=0D0 | |
40030 | DO 230 J1=1,3 | |
40031 | DO 220 J2=1,3 | |
40032 | IF(ABS(SM(J1,J2)).LE.SMAX) GOTO 220 | |
40033 | JA=J1 | |
40034 | JB=J2 | |
40035 | SMAX=ABS(SM(J1,J2)) | |
40036 | 220 CONTINUE | |
40037 | 230 CONTINUE | |
40038 | SMAX=0D0 | |
40039 | DO 250 J3=JA+1,JA+2 | |
40040 | J1=J3-3*((J3-1)/3) | |
40041 | RL=SM(J1,JB)/SM(JA,JB) | |
40042 | DO 240 J2=1,3 | |
40043 | SM(J1,J2)=SM(J1,J2)-RL*SM(JA,J2) | |
40044 | IF(ABS(SM(J1,J2)).LE.SMAX) GOTO 240 | |
40045 | JC=J1 | |
40046 | SMAX=ABS(SM(J1,J2)) | |
40047 | 240 CONTINUE | |
40048 | 250 CONTINUE | |
40049 | JB1=JB+1-3*(JB/3) | |
40050 | JB2=JB+2-3*((JB+1)/3) | |
40051 | SAX(JB1)=-SM(JC,JB2) | |
40052 | SAX(JB2)=SM(JC,JB1) | |
40053 | SAX(JB)=-(SM(JA,JB1)*SAX(JB1)+SM(JA,JB2)*SAX(JB2))/SM(JA,JB) | |
40054 | ||
40055 | C...Divide particles into two initial clusters by hemisphere. | |
40056 | DO 270 I=N+1,N+NP | |
40057 | PSAX=P(I,1)*SAX(1)+P(I,2)*SAX(2)+P(I,3)*SAX(3) | |
40058 | IS=1 | |
40059 | IF(PSAX.LT.0D0) IS=2 | |
40060 | K(I,3)=IS | |
40061 | DO 260 J=1,4 | |
40062 | PS(IS,J)=PS(IS,J)+P(I,J) | |
40063 | 260 CONTINUE | |
40064 | 270 CONTINUE | |
40065 | PMS=MAX(1D-10,PS(1,4)**2-PS(1,1)**2-PS(1,2)**2-PS(1,3)**2)+ | |
40066 | &MAX(1D-10,PS(2,4)**2-PS(2,1)**2-PS(2,2)**2-PS(2,3)**2) | |
40067 | ||
40068 | C...Reassign one particle at a time; find maximum decrease of m^2 sum. | |
40069 | 280 PMD=0D0 | |
40070 | IM=0 | |
40071 | DO 290 J=1,4 | |
40072 | PS(3,J)=PS(1,J)-PS(2,J) | |
40073 | 290 CONTINUE | |
40074 | DO 300 I=N+1,N+NP | |
40075 | PPS=P(I,4)*PS(3,4)-P(I,1)*PS(3,1)-P(I,2)*PS(3,2)-P(I,3)*PS(3,3) | |
40076 | IF(K(I,3).EQ.1) PMDI=2D0*(P(I,5)**2-PPS) | |
40077 | IF(K(I,3).EQ.2) PMDI=2D0*(P(I,5)**2+PPS) | |
40078 | IF(PMDI.LT.PMD) THEN | |
40079 | PMD=PMDI | |
40080 | IM=I | |
40081 | ENDIF | |
40082 | 300 CONTINUE | |
40083 | ||
40084 | C...Loop back if significant reduction in sum of m^2. | |
40085 | IF(PMD.LT.-PARU(48)*PMS) THEN | |
40086 | PMS=PMS+PMD | |
40087 | IS=K(IM,3) | |
40088 | DO 310 J=1,4 | |
40089 | PS(IS,J)=PS(IS,J)-P(IM,J) | |
40090 | PS(3-IS,J)=PS(3-IS,J)+P(IM,J) | |
40091 | 310 CONTINUE | |
40092 | K(IM,3)=3-IS | |
40093 | GOTO 280 | |
40094 | ENDIF | |
40095 | ||
40096 | C...Final masses and output. | |
40097 | MSTU(61)=N+1 | |
40098 | MSTU(62)=NP | |
40099 | PS(1,5)=SQRT(MAX(0D0,PS(1,4)**2-PS(1,1)**2-PS(1,2)**2-PS(1,3)**2)) | |
40100 | PS(2,5)=SQRT(MAX(0D0,PS(2,4)**2-PS(2,1)**2-PS(2,2)**2-PS(2,3)**2)) | |
40101 | PMH=MAX(PS(1,5),PS(2,5)) | |
40102 | PML=MIN(PS(1,5),PS(2,5)) | |
40103 | ||
40104 | RETURN | |
40105 | END | |
40106 | ||
40107 | C********************************************************************* | |
40108 | ||
40109 | C...PYFOWO | |
40110 | C...Calculates the first few Fox-Wolfram moments. | |
40111 | ||
40112 | SUBROUTINE PYFOWO(H10,H20,H30,H40) | |
40113 | ||
40114 | C...Double precision and integer declarations. | |
40115 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
40116 | INTEGER PYK,PYCHGE,PYCOMP | |
40117 | C...Commonblocks. | |
40118 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
40119 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
40120 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
40121 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
40122 | ||
40123 | C...Copy momenta for particles and calculate H0. | |
40124 | NP=0 | |
40125 | H0=0D0 | |
40126 | HD=0D0 | |
40127 | DO 110 I=1,N | |
40128 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 110 | |
40129 | IF(MSTU(41).GE.2) THEN | |
40130 | KC=PYCOMP(K(I,2)) | |
40131 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
40132 | & KC.EQ.18) GOTO 110 | |
40133 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND.PYCHGE(K(I,2)).EQ.0) | |
40134 | & GOTO 110 | |
40135 | ENDIF | |
40136 | IF(N+NP.GE.MSTU(4)-MSTU(32)-5) THEN | |
40137 | CALL PYERRM(11,'(PYFOWO:) no more memory left in PYJETS') | |
40138 | H10=-1D0 | |
40139 | H20=-1D0 | |
40140 | H30=-1D0 | |
40141 | H40=-1D0 | |
40142 | RETURN | |
40143 | ENDIF | |
40144 | NP=NP+1 | |
40145 | DO 100 J=1,3 | |
40146 | P(N+NP,J)=P(I,J) | |
40147 | 100 CONTINUE | |
40148 | P(N+NP,4)=SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
40149 | H0=H0+P(N+NP,4) | |
40150 | HD=HD+P(N+NP,4)**2 | |
40151 | 110 CONTINUE | |
40152 | H0=H0**2 | |
40153 | ||
40154 | C...Very low multiplicities (0 or 1) not considered. | |
40155 | IF(NP.LE.1) THEN | |
40156 | CALL PYERRM(8,'(PYFOWO:) too few particles for analysis') | |
40157 | H10=-1D0 | |
40158 | H20=-1D0 | |
40159 | H30=-1D0 | |
40160 | H40=-1D0 | |
40161 | RETURN | |
40162 | ENDIF | |
40163 | ||
40164 | C...Calculate H1 - H4. | |
40165 | H10=0D0 | |
40166 | H20=0D0 | |
40167 | H30=0D0 | |
40168 | H40=0D0 | |
40169 | DO 130 I1=N+1,N+NP | |
40170 | DO 120 I2=I1+1,N+NP | |
40171 | CTHE=(P(I1,1)*P(I2,1)+P(I1,2)*P(I2,2)+P(I1,3)*P(I2,3))/ | |
40172 | & (P(I1,4)*P(I2,4)) | |
40173 | H10=H10+P(I1,4)*P(I2,4)*CTHE | |
40174 | H20=H20+P(I1,4)*P(I2,4)*(1.5D0*CTHE**2-0.5D0) | |
40175 | H30=H30+P(I1,4)*P(I2,4)*(2.5D0*CTHE**3-1.5D0*CTHE) | |
40176 | H40=H40+P(I1,4)*P(I2,4)*(4.375D0*CTHE**4-3.75D0*CTHE**2+ | |
40177 | & 0.375D0) | |
40178 | 120 CONTINUE | |
40179 | 130 CONTINUE | |
40180 | ||
40181 | C...Calculate H1/H0 - H4/H0. Output. | |
40182 | MSTU(61)=N+1 | |
40183 | MSTU(62)=NP | |
40184 | H10=(HD+2D0*H10)/H0 | |
40185 | H20=(HD+2D0*H20)/H0 | |
40186 | H30=(HD+2D0*H30)/H0 | |
40187 | H40=(HD+2D0*H40)/H0 | |
40188 | ||
40189 | RETURN | |
40190 | END | |
40191 | ||
40192 | C********************************************************************* | |
40193 | ||
40194 | C...PYTABU | |
40195 | C...Evaluates various properties of an event, with statistics | |
40196 | C...accumulated during the course of the run and | |
40197 | C...printed at the end. | |
40198 | ||
40199 | SUBROUTINE PYTABU(MTABU) | |
40200 | ||
40201 | C...Double precision and integer declarations. | |
40202 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
40203 | INTEGER PYK,PYCHGE,PYCOMP | |
40204 | C...Commonblocks. | |
40205 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
40206 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
40207 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
40208 | COMMON/PYDAT3/MDCY(500,3),MDME(4000,2),BRAT(4000),KFDP(4000,5) | |
40209 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/,/PYDAT3/ | |
40210 | C...Local arrays, character variables, saved variables and data. | |
40211 | DIMENSION KFIS(100,2),NPIS(100,0:10),KFFS(400),NPFS(400,4), | |
40212 | &FEVFM(10,4),FM1FM(3,10,4),FM2FM(3,10,4),FMOMA(4),FMOMS(4), | |
40213 | &FEVEE(50),FE1EC(50),FE2EC(50),FE1EA(25),FE2EA(25), | |
40214 | &KFDM(8),KFDC(200,0:8),NPDC(200) | |
40215 | SAVE NEVIS,NKFIS,KFIS,NPIS,NEVFS,NPRFS,NFIFS,NCHFS,NKFFS, | |
40216 | &KFFS,NPFS,NEVFM,NMUFM,FM1FM,FM2FM,NEVEE,FE1EC,FE2EC,FE1EA, | |
40217 | &FE2EA,NEVDC,NKFDC,NREDC,KFDC,NPDC | |
40218 | CHARACTER CHAU*16,CHIS(2)*12,CHDC(8)*12 | |
40219 | DATA NEVIS/0/,NKFIS/0/,NEVFS/0/,NPRFS/0/,NFIFS/0/,NCHFS/0/, | |
40220 | &NKFFS/0/,NEVFM/0/,NMUFM/0/,FM1FM/120*0D0/,FM2FM/120*0D0/, | |
40221 | &NEVEE/0/,FE1EC/50*0D0/,FE2EC/50*0D0/,FE1EA/25*0D0/,FE2EA/25*0D0/, | |
40222 | &NEVDC/0/,NKFDC/0/,NREDC/0/ | |
40223 | ||
40224 | C...Reset statistics on initial parton state. | |
40225 | IF(MTABU.EQ.10) THEN | |
40226 | NEVIS=0 | |
40227 | NKFIS=0 | |
40228 | ||
40229 | C...Identify and order flavour content of initial state. | |
40230 | ELSEIF(MTABU.EQ.11) THEN | |
40231 | NEVIS=NEVIS+1 | |
40232 | KFM1=2*IABS(MSTU(161)) | |
40233 | IF(MSTU(161).GT.0) KFM1=KFM1-1 | |
40234 | KFM2=2*IABS(MSTU(162)) | |
40235 | IF(MSTU(162).GT.0) KFM2=KFM2-1 | |
40236 | KFMN=MIN(KFM1,KFM2) | |
40237 | KFMX=MAX(KFM1,KFM2) | |
40238 | DO 100 I=1,NKFIS | |
40239 | IF(KFMN.EQ.KFIS(I,1).AND.KFMX.EQ.KFIS(I,2)) THEN | |
40240 | IKFIS=-I | |
40241 | GOTO 110 | |
40242 | ELSEIF(KFMN.LT.KFIS(I,1).OR.(KFMN.EQ.KFIS(I,1).AND. | |
40243 | & KFMX.LT.KFIS(I,2))) THEN | |
40244 | IKFIS=I | |
40245 | GOTO 110 | |
40246 | ENDIF | |
40247 | 100 CONTINUE | |
40248 | IKFIS=NKFIS+1 | |
40249 | 110 IF(IKFIS.LT.0) THEN | |
40250 | IKFIS=-IKFIS | |
40251 | ELSE | |
40252 | IF(NKFIS.GE.100) RETURN | |
40253 | DO 130 I=NKFIS,IKFIS,-1 | |
40254 | KFIS(I+1,1)=KFIS(I,1) | |
40255 | KFIS(I+1,2)=KFIS(I,2) | |
40256 | DO 120 J=0,10 | |
40257 | NPIS(I+1,J)=NPIS(I,J) | |
40258 | 120 CONTINUE | |
40259 | 130 CONTINUE | |
40260 | NKFIS=NKFIS+1 | |
40261 | KFIS(IKFIS,1)=KFMN | |
40262 | KFIS(IKFIS,2)=KFMX | |
40263 | DO 140 J=0,10 | |
40264 | NPIS(IKFIS,J)=0 | |
40265 | 140 CONTINUE | |
40266 | ENDIF | |
40267 | NPIS(IKFIS,0)=NPIS(IKFIS,0)+1 | |
40268 | ||
40269 | C...Count number of partons in initial state. | |
40270 | NP=0 | |
40271 | DO 160 I=1,N | |
40272 | IF(K(I,1).LE.0.OR.K(I,1).GT.12) THEN | |
40273 | ELSEIF(IABS(K(I,2)).GT.80.AND.IABS(K(I,2)).LE.100) THEN | |
40274 | ELSEIF(IABS(K(I,2)).GT.100.AND.MOD(IABS(K(I,2))/10,10).NE.0) | |
40275 | & THEN | |
40276 | ELSE | |
40277 | IM=I | |
40278 | 150 IM=K(IM,3) | |
40279 | IF(IM.LE.0.OR.IM.GT.N) THEN | |
40280 | NP=NP+1 | |
40281 | ELSEIF(K(IM,1).LE.0.OR.K(IM,1).GT.20) THEN | |
40282 | NP=NP+1 | |
40283 | ELSEIF(IABS(K(IM,2)).GT.80.AND.IABS(K(IM,2)).LE.100) THEN | |
40284 | ELSEIF(IABS(K(IM,2)).GT.100.AND.MOD(IABS(K(IM,2))/10,10) | |
40285 | & .NE.0) THEN | |
40286 | ELSE | |
40287 | GOTO 150 | |
40288 | ENDIF | |
40289 | ENDIF | |
40290 | 160 CONTINUE | |
40291 | NPCO=MAX(NP,1) | |
40292 | IF(NP.GE.6) NPCO=6 | |
40293 | IF(NP.GE.8) NPCO=7 | |
40294 | IF(NP.GE.11) NPCO=8 | |
40295 | IF(NP.GE.16) NPCO=9 | |
40296 | IF(NP.GE.26) NPCO=10 | |
40297 | NPIS(IKFIS,NPCO)=NPIS(IKFIS,NPCO)+1 | |
40298 | MSTU(62)=NP | |
40299 | ||
40300 | C...Write statistics on initial parton state. | |
40301 | ELSEIF(MTABU.EQ.12) THEN | |
40302 | FAC=1D0/MAX(1,NEVIS) | |
40303 | WRITE(MSTU(11),5000) NEVIS | |
40304 | DO 170 I=1,NKFIS | |
40305 | KFMN=KFIS(I,1) | |
40306 | IF(KFMN.EQ.0) KFMN=KFIS(I,2) | |
40307 | KFM1=(KFMN+1)/2 | |
40308 | IF(2*KFM1.EQ.KFMN) KFM1=-KFM1 | |
40309 | CALL PYNAME(KFM1,CHAU) | |
40310 | CHIS(1)=CHAU(1:12) | |
40311 | IF(CHAU(13:13).NE.' ') CHIS(1)(12:12)='?' | |
40312 | KFMX=KFIS(I,2) | |
40313 | IF(KFIS(I,1).EQ.0) KFMX=0 | |
40314 | KFM2=(KFMX+1)/2 | |
40315 | IF(2*KFM2.EQ.KFMX) KFM2=-KFM2 | |
40316 | CALL PYNAME(KFM2,CHAU) | |
40317 | CHIS(2)=CHAU(1:12) | |
40318 | IF(CHAU(13:13).NE.' ') CHIS(2)(12:12)='?' | |
40319 | WRITE(MSTU(11),5100) CHIS(1),CHIS(2),FAC*NPIS(I,0), | |
40320 | & (NPIS(I,J)/DBLE(NPIS(I,0)),J=1,10) | |
40321 | 170 CONTINUE | |
40322 | ||
40323 | C...Copy statistics on initial parton state into /PYJETS/. | |
40324 | ELSEIF(MTABU.EQ.13) THEN | |
40325 | FAC=1D0/MAX(1,NEVIS) | |
40326 | DO 190 I=1,NKFIS | |
40327 | KFMN=KFIS(I,1) | |
40328 | IF(KFMN.EQ.0) KFMN=KFIS(I,2) | |
40329 | KFM1=(KFMN+1)/2 | |
40330 | IF(2*KFM1.EQ.KFMN) KFM1=-KFM1 | |
40331 | KFMX=KFIS(I,2) | |
40332 | IF(KFIS(I,1).EQ.0) KFMX=0 | |
40333 | KFM2=(KFMX+1)/2 | |
40334 | IF(2*KFM2.EQ.KFMX) KFM2=-KFM2 | |
40335 | K(I,1)=32 | |
40336 | K(I,2)=99 | |
40337 | K(I,3)=KFM1 | |
40338 | K(I,4)=KFM2 | |
40339 | K(I,5)=NPIS(I,0) | |
40340 | DO 180 J=1,5 | |
40341 | P(I,J)=FAC*NPIS(I,J) | |
40342 | V(I,J)=FAC*NPIS(I,J+5) | |
40343 | 180 CONTINUE | |
40344 | 190 CONTINUE | |
40345 | N=NKFIS | |
40346 | DO 200 J=1,5 | |
40347 | K(N+1,J)=0 | |
40348 | P(N+1,J)=0D0 | |
40349 | V(N+1,J)=0D0 | |
40350 | 200 CONTINUE | |
40351 | K(N+1,1)=32 | |
40352 | K(N+1,2)=99 | |
40353 | K(N+1,5)=NEVIS | |
40354 | MSTU(3)=1 | |
40355 | ||
40356 | C...Reset statistics on number of particles/partons. | |
40357 | ELSEIF(MTABU.EQ.20) THEN | |
40358 | NEVFS=0 | |
40359 | NPRFS=0 | |
40360 | NFIFS=0 | |
40361 | NCHFS=0 | |
40362 | NKFFS=0 | |
40363 | ||
40364 | C...Identify whether particle/parton is primary or not. | |
40365 | ELSEIF(MTABU.EQ.21) THEN | |
40366 | NEVFS=NEVFS+1 | |
40367 | MSTU(62)=0 | |
40368 | DO 260 I=1,N | |
40369 | IF(K(I,1).LE.0.OR.K(I,1).GT.20.OR.K(I,1).EQ.13) GOTO 260 | |
40370 | MSTU(62)=MSTU(62)+1 | |
40371 | KC=PYCOMP(K(I,2)) | |
40372 | MPRI=0 | |
40373 | IF(K(I,3).LE.0.OR.K(I,3).GT.N) THEN | |
40374 | MPRI=1 | |
40375 | ELSEIF(K(K(I,3),1).LE.0.OR.K(K(I,3),1).GT.20) THEN | |
40376 | MPRI=1 | |
40377 | ELSEIF(K(K(I,3),2).GE.91.AND.K(K(I,3),2).LE.93) THEN | |
40378 | MPRI=1 | |
40379 | ELSEIF(KC.EQ.0) THEN | |
40380 | ELSEIF(K(K(I,3),1).EQ.13) THEN | |
40381 | IM=K(K(I,3),3) | |
40382 | IF(IM.LE.0.OR.IM.GT.N) THEN | |
40383 | MPRI=1 | |
40384 | ELSEIF(K(IM,1).LE.0.OR.K(IM,1).GT.20) THEN | |
40385 | MPRI=1 | |
40386 | ENDIF | |
40387 | ELSEIF(KCHG(KC,2).EQ.0) THEN | |
40388 | KCM=PYCOMP(K(K(I,3),2)) | |
40389 | IF(KCM.NE.0) THEN | |
40390 | IF(KCHG(KCM,2).NE.0) MPRI=1 | |
40391 | ENDIF | |
40392 | ENDIF | |
40393 | IF(KC.NE.0.AND.MPRI.EQ.1) THEN | |
40394 | IF(KCHG(KC,2).EQ.0) NPRFS=NPRFS+1 | |
40395 | ENDIF | |
40396 | IF(K(I,1).LE.10) THEN | |
40397 | NFIFS=NFIFS+1 | |
40398 | IF(PYCHGE(K(I,2)).NE.0) NCHFS=NCHFS+1 | |
40399 | ENDIF | |
40400 | ||
40401 | C...Fill statistics on number of particles/partons in event. | |
40402 | KFA=IABS(K(I,2)) | |
40403 | KFS=3-ISIGN(1,K(I,2))-MPRI | |
40404 | DO 210 IP=1,NKFFS | |
40405 | IF(KFA.EQ.KFFS(IP)) THEN | |
40406 | IKFFS=-IP | |
40407 | GOTO 220 | |
40408 | ELSEIF(KFA.LT.KFFS(IP)) THEN | |
40409 | IKFFS=IP | |
40410 | GOTO 220 | |
40411 | ENDIF | |
40412 | 210 CONTINUE | |
40413 | IKFFS=NKFFS+1 | |
40414 | 220 IF(IKFFS.LT.0) THEN | |
40415 | IKFFS=-IKFFS | |
40416 | ELSE | |
40417 | IF(NKFFS.GE.400) RETURN | |
40418 | DO 240 IP=NKFFS,IKFFS,-1 | |
40419 | KFFS(IP+1)=KFFS(IP) | |
40420 | DO 230 J=1,4 | |
40421 | NPFS(IP+1,J)=NPFS(IP,J) | |
40422 | 230 CONTINUE | |
40423 | 240 CONTINUE | |
40424 | NKFFS=NKFFS+1 | |
40425 | KFFS(IKFFS)=KFA | |
40426 | DO 250 J=1,4 | |
40427 | NPFS(IKFFS,J)=0 | |
40428 | 250 CONTINUE | |
40429 | ENDIF | |
40430 | NPFS(IKFFS,KFS)=NPFS(IKFFS,KFS)+1 | |
40431 | 260 CONTINUE | |
40432 | ||
40433 | C...Write statistics on particle/parton composition of events. | |
40434 | ELSEIF(MTABU.EQ.22) THEN | |
40435 | FAC=1D0/MAX(1,NEVFS) | |
40436 | WRITE(MSTU(11),5200) NEVFS,FAC*NPRFS,FAC*NFIFS,FAC*NCHFS | |
40437 | DO 270 I=1,NKFFS | |
40438 | CALL PYNAME(KFFS(I),CHAU) | |
40439 | KC=PYCOMP(KFFS(I)) | |
40440 | MDCYF=0 | |
40441 | IF(KC.NE.0) MDCYF=MDCY(KC,1) | |
40442 | WRITE(MSTU(11),5300) KFFS(I),CHAU,MDCYF,(FAC*NPFS(I,J),J=1,4), | |
40443 | & FAC*(NPFS(I,1)+NPFS(I,2)+NPFS(I,3)+NPFS(I,4)) | |
40444 | 270 CONTINUE | |
40445 | ||
40446 | C...Copy particle/parton composition information into /PYJETS/. | |
40447 | ELSEIF(MTABU.EQ.23) THEN | |
40448 | FAC=1D0/MAX(1,NEVFS) | |
40449 | DO 290 I=1,NKFFS | |
40450 | K(I,1)=32 | |
40451 | K(I,2)=99 | |
40452 | K(I,3)=KFFS(I) | |
40453 | K(I,4)=0 | |
40454 | K(I,5)=NPFS(I,1)+NPFS(I,2)+NPFS(I,3)+NPFS(I,4) | |
40455 | DO 280 J=1,4 | |
40456 | P(I,J)=FAC*NPFS(I,J) | |
40457 | V(I,J)=0D0 | |
40458 | 280 CONTINUE | |
40459 | P(I,5)=FAC*K(I,5) | |
40460 | V(I,5)=0D0 | |
40461 | 290 CONTINUE | |
40462 | N=NKFFS | |
40463 | DO 300 J=1,5 | |
40464 | K(N+1,J)=0 | |
40465 | P(N+1,J)=0D0 | |
40466 | V(N+1,J)=0D0 | |
40467 | 300 CONTINUE | |
40468 | K(N+1,1)=32 | |
40469 | K(N+1,2)=99 | |
40470 | K(N+1,5)=NEVFS | |
40471 | P(N+1,1)=FAC*NPRFS | |
40472 | P(N+1,2)=FAC*NFIFS | |
40473 | P(N+1,3)=FAC*NCHFS | |
40474 | MSTU(3)=1 | |
40475 | ||
40476 | C...Reset factorial moments statistics. | |
40477 | ELSEIF(MTABU.EQ.30) THEN | |
40478 | NEVFM=0 | |
40479 | NMUFM=0 | |
40480 | DO 330 IM=1,3 | |
40481 | DO 320 IB=1,10 | |
40482 | DO 310 IP=1,4 | |
40483 | FM1FM(IM,IB,IP)=0D0 | |
40484 | FM2FM(IM,IB,IP)=0D0 | |
40485 | 310 CONTINUE | |
40486 | 320 CONTINUE | |
40487 | 330 CONTINUE | |
40488 | ||
40489 | C...Find particles to include, with (pion,pseudo)rapidity and azimuth. | |
40490 | ELSEIF(MTABU.EQ.31) THEN | |
40491 | NEVFM=NEVFM+1 | |
40492 | NLOW=N+MSTU(3) | |
40493 | NUPP=NLOW | |
40494 | DO 410 I=1,N | |
40495 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 410 | |
40496 | IF(MSTU(41).GE.2) THEN | |
40497 | KC=PYCOMP(K(I,2)) | |
40498 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
40499 | & KC.EQ.18) GOTO 410 | |
40500 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND. | |
40501 | & PYCHGE(K(I,2)).EQ.0) GOTO 410 | |
40502 | ENDIF | |
40503 | PMR=0D0 | |
40504 | IF(MSTU(42).EQ.1.AND.K(I,2).NE.22) PMR=PYMASS(211) | |
40505 | IF(MSTU(42).GE.2) PMR=P(I,5) | |
40506 | PR=MAX(1D-20,PMR**2+P(I,1)**2+P(I,2)**2) | |
40507 | YETA=SIGN(LOG(MIN((SQRT(PR+P(I,3)**2)+ABS(P(I,3)))/SQRT(PR), | |
40508 | & 1D20)),P(I,3)) | |
40509 | IF(ABS(YETA).GT.PARU(57)) GOTO 410 | |
40510 | PHI=PYANGL(P(I,1),P(I,2)) | |
40511 | IYETA=512D0*(YETA+PARU(57))/(2D0*PARU(57)) | |
40512 | IYETA=MAX(0,MIN(511,IYETA)) | |
40513 | IPHI=512D0*(PHI+PARU(1))/PARU(2) | |
40514 | IPHI=MAX(0,MIN(511,IPHI)) | |
40515 | IYEP=0 | |
40516 | DO 340 IB=0,9 | |
40517 | IYEP=IYEP+4**IB*(2*MOD(IYETA/2**IB,2)+MOD(IPHI/2**IB,2)) | |
40518 | 340 CONTINUE | |
40519 | ||
40520 | C...Order particles in (pseudo)rapidity and/or azimuth. | |
40521 | IF(NUPP.GT.MSTU(4)-5-MSTU(32)) THEN | |
40522 | CALL PYERRM(11,'(PYTABU:) no more memory left in PYJETS') | |
40523 | RETURN | |
40524 | ENDIF | |
40525 | NUPP=NUPP+1 | |
40526 | IF(NUPP.EQ.NLOW+1) THEN | |
40527 | K(NUPP,1)=IYETA | |
40528 | K(NUPP,2)=IPHI | |
40529 | K(NUPP,3)=IYEP | |
40530 | ELSE | |
40531 | DO 350 I1=NUPP-1,NLOW+1,-1 | |
40532 | IF(IYETA.GE.K(I1,1)) GOTO 360 | |
40533 | K(I1+1,1)=K(I1,1) | |
40534 | 350 CONTINUE | |
40535 | 360 K(I1+1,1)=IYETA | |
40536 | DO 370 I1=NUPP-1,NLOW+1,-1 | |
40537 | IF(IPHI.GE.K(I1,2)) GOTO 380 | |
40538 | K(I1+1,2)=K(I1,2) | |
40539 | 370 CONTINUE | |
40540 | 380 K(I1+1,2)=IPHI | |
40541 | DO 390 I1=NUPP-1,NLOW+1,-1 | |
40542 | IF(IYEP.GE.K(I1,3)) GOTO 400 | |
40543 | K(I1+1,3)=K(I1,3) | |
40544 | 390 CONTINUE | |
40545 | 400 K(I1+1,3)=IYEP | |
40546 | ENDIF | |
40547 | 410 CONTINUE | |
40548 | K(NUPP+1,1)=2**10 | |
40549 | K(NUPP+1,2)=2**10 | |
40550 | K(NUPP+1,3)=4**10 | |
40551 | ||
40552 | C...Calculate sum of factorial moments in event. | |
40553 | DO 480 IM=1,3 | |
40554 | DO 430 IB=1,10 | |
40555 | DO 420 IP=1,4 | |
40556 | FEVFM(IB,IP)=0D0 | |
40557 | 420 CONTINUE | |
40558 | 430 CONTINUE | |
40559 | DO 450 IB=1,10 | |
40560 | IF(IM.LE.2) IBIN=2**(10-IB) | |
40561 | IF(IM.EQ.3) IBIN=4**(10-IB) | |
40562 | IAGR=K(NLOW+1,IM)/IBIN | |
40563 | NAGR=1 | |
40564 | DO 440 I=NLOW+2,NUPP+1 | |
40565 | ICUT=K(I,IM)/IBIN | |
40566 | IF(ICUT.EQ.IAGR) THEN | |
40567 | NAGR=NAGR+1 | |
40568 | ELSE | |
40569 | IF(NAGR.EQ.1) THEN | |
40570 | ELSEIF(NAGR.EQ.2) THEN | |
40571 | FEVFM(IB,1)=FEVFM(IB,1)+2D0 | |
40572 | ELSEIF(NAGR.EQ.3) THEN | |
40573 | FEVFM(IB,1)=FEVFM(IB,1)+6D0 | |
40574 | FEVFM(IB,2)=FEVFM(IB,2)+6D0 | |
40575 | ELSEIF(NAGR.EQ.4) THEN | |
40576 | FEVFM(IB,1)=FEVFM(IB,1)+12D0 | |
40577 | FEVFM(IB,2)=FEVFM(IB,2)+24D0 | |
40578 | FEVFM(IB,3)=FEVFM(IB,3)+24D0 | |
40579 | ELSE | |
40580 | FEVFM(IB,1)=FEVFM(IB,1)+NAGR*(NAGR-1D0) | |
40581 | FEVFM(IB,2)=FEVFM(IB,2)+NAGR*(NAGR-1D0)*(NAGR-2D0) | |
40582 | FEVFM(IB,3)=FEVFM(IB,3)+NAGR*(NAGR-1D0)*(NAGR-2D0)* | |
40583 | & (NAGR-3D0) | |
40584 | FEVFM(IB,4)=FEVFM(IB,4)+NAGR*(NAGR-1D0)*(NAGR-2D0)* | |
40585 | & (NAGR-3D0)*(NAGR-4D0) | |
40586 | ENDIF | |
40587 | IAGR=ICUT | |
40588 | NAGR=1 | |
40589 | ENDIF | |
40590 | 440 CONTINUE | |
40591 | 450 CONTINUE | |
40592 | ||
40593 | C...Add results to total statistics. | |
40594 | DO 470 IB=10,1,-1 | |
40595 | DO 460 IP=1,4 | |
40596 | IF(FEVFM(1,IP).LT.0.5D0) THEN | |
40597 | FEVFM(IB,IP)=0D0 | |
40598 | ELSEIF(IM.LE.2) THEN | |
40599 | FEVFM(IB,IP)=2D0**((IB-1)*IP)*FEVFM(IB,IP)/FEVFM(1,IP) | |
40600 | ELSE | |
40601 | FEVFM(IB,IP)=4D0**((IB-1)*IP)*FEVFM(IB,IP)/FEVFM(1,IP) | |
40602 | ENDIF | |
40603 | FM1FM(IM,IB,IP)=FM1FM(IM,IB,IP)+FEVFM(IB,IP) | |
40604 | FM2FM(IM,IB,IP)=FM2FM(IM,IB,IP)+FEVFM(IB,IP)**2 | |
40605 | 460 CONTINUE | |
40606 | 470 CONTINUE | |
40607 | 480 CONTINUE | |
40608 | NMUFM=NMUFM+(NUPP-NLOW) | |
40609 | MSTU(62)=NUPP-NLOW | |
40610 | ||
40611 | C...Write accumulated statistics on factorial moments. | |
40612 | ELSEIF(MTABU.EQ.32) THEN | |
40613 | FAC=1D0/MAX(1,NEVFM) | |
40614 | IF(MSTU(42).LE.0) WRITE(MSTU(11),5400) NEVFM,'eta' | |
40615 | IF(MSTU(42).EQ.1) WRITE(MSTU(11),5400) NEVFM,'ypi' | |
40616 | IF(MSTU(42).GE.2) WRITE(MSTU(11),5400) NEVFM,'y ' | |
40617 | DO 510 IM=1,3 | |
40618 | WRITE(MSTU(11),5500) | |
40619 | DO 500 IB=1,10 | |
40620 | BYETA=2D0*PARU(57) | |
40621 | IF(IM.NE.2) BYETA=BYETA/2**(IB-1) | |
40622 | BPHI=PARU(2) | |
40623 | IF(IM.NE.1) BPHI=BPHI/2**(IB-1) | |
40624 | IF(IM.LE.2) BNAVE=FAC*NMUFM/DBLE(2**(IB-1)) | |
40625 | IF(IM.EQ.3) BNAVE=FAC*NMUFM/DBLE(4**(IB-1)) | |
40626 | DO 490 IP=1,4 | |
40627 | FMOMA(IP)=FAC*FM1FM(IM,IB,IP) | |
40628 | FMOMS(IP)=SQRT(MAX(0D0,FAC*(FAC*FM2FM(IM,IB,IP)- | |
40629 | & FMOMA(IP)**2))) | |
40630 | 490 CONTINUE | |
40631 | WRITE(MSTU(11),5600) BYETA,BPHI,BNAVE,(FMOMA(IP),FMOMS(IP), | |
40632 | & IP=1,4) | |
40633 | 500 CONTINUE | |
40634 | 510 CONTINUE | |
40635 | ||
40636 | C...Copy statistics on factorial moments into /PYJETS/. | |
40637 | ELSEIF(MTABU.EQ.33) THEN | |
40638 | FAC=1D0/MAX(1,NEVFM) | |
40639 | DO 540 IM=1,3 | |
40640 | DO 530 IB=1,10 | |
40641 | I=10*(IM-1)+IB | |
40642 | K(I,1)=32 | |
40643 | K(I,2)=99 | |
40644 | K(I,3)=1 | |
40645 | IF(IM.NE.2) K(I,3)=2**(IB-1) | |
40646 | K(I,4)=1 | |
40647 | IF(IM.NE.1) K(I,4)=2**(IB-1) | |
40648 | K(I,5)=0 | |
40649 | P(I,1)=2D0*PARU(57)/K(I,3) | |
40650 | V(I,1)=PARU(2)/K(I,4) | |
40651 | DO 520 IP=1,4 | |
40652 | P(I,IP+1)=FAC*FM1FM(IM,IB,IP) | |
40653 | V(I,IP+1)=SQRT(MAX(0D0,FAC*(FAC*FM2FM(IM,IB,IP)- | |
40654 | & P(I,IP+1)**2))) | |
40655 | 520 CONTINUE | |
40656 | 530 CONTINUE | |
40657 | 540 CONTINUE | |
40658 | N=30 | |
40659 | DO 550 J=1,5 | |
40660 | K(N+1,J)=0 | |
40661 | P(N+1,J)=0D0 | |
40662 | V(N+1,J)=0D0 | |
40663 | 550 CONTINUE | |
40664 | K(N+1,1)=32 | |
40665 | K(N+1,2)=99 | |
40666 | K(N+1,5)=NEVFM | |
40667 | MSTU(3)=1 | |
40668 | ||
40669 | C...Reset statistics on Energy-Energy Correlation. | |
40670 | ELSEIF(MTABU.EQ.40) THEN | |
40671 | NEVEE=0 | |
40672 | DO 560 J=1,25 | |
40673 | FE1EC(J)=0D0 | |
40674 | FE2EC(J)=0D0 | |
40675 | FE1EC(51-J)=0D0 | |
40676 | FE2EC(51-J)=0D0 | |
40677 | FE1EA(J)=0D0 | |
40678 | FE2EA(J)=0D0 | |
40679 | 560 CONTINUE | |
40680 | ||
40681 | C...Find particles to include, with proper assumed mass. | |
40682 | ELSEIF(MTABU.EQ.41) THEN | |
40683 | NEVEE=NEVEE+1 | |
40684 | NLOW=N+MSTU(3) | |
40685 | NUPP=NLOW | |
40686 | ECM=0D0 | |
40687 | DO 570 I=1,N | |
40688 | IF(K(I,1).LE.0.OR.K(I,1).GT.10) GOTO 570 | |
40689 | IF(MSTU(41).GE.2) THEN | |
40690 | KC=PYCOMP(K(I,2)) | |
40691 | IF(KC.EQ.0.OR.KC.EQ.12.OR.KC.EQ.14.OR.KC.EQ.16.OR. | |
40692 | & KC.EQ.18) GOTO 570 | |
40693 | IF(MSTU(41).GE.3.AND.KCHG(KC,2).EQ.0.AND. | |
40694 | & PYCHGE(K(I,2)).EQ.0) GOTO 570 | |
40695 | ENDIF | |
40696 | PMR=0D0 | |
40697 | IF(MSTU(42).EQ.1.AND.K(I,2).NE.22) PMR=PYMASS(211) | |
40698 | IF(MSTU(42).GE.2) PMR=P(I,5) | |
40699 | IF(NUPP.GT.MSTU(4)-5-MSTU(32)) THEN | |
40700 | CALL PYERRM(11,'(PYTABU:) no more memory left in PYJETS') | |
40701 | RETURN | |
40702 | ENDIF | |
40703 | NUPP=NUPP+1 | |
40704 | P(NUPP,1)=P(I,1) | |
40705 | P(NUPP,2)=P(I,2) | |
40706 | P(NUPP,3)=P(I,3) | |
40707 | P(NUPP,4)=SQRT(PMR**2+P(I,1)**2+P(I,2)**2+P(I,3)**2) | |
40708 | P(NUPP,5)=MAX(1D-10,SQRT(P(I,1)**2+P(I,2)**2+P(I,3)**2)) | |
40709 | ECM=ECM+P(NUPP,4) | |
40710 | 570 CONTINUE | |
40711 | IF(NUPP.EQ.NLOW) RETURN | |
40712 | ||
40713 | C...Analyze Energy-Energy Correlation in event. | |
40714 | FAC=(2D0/ECM**2)*50D0/PARU(1) | |
40715 | DO 580 J=1,50 | |
40716 | FEVEE(J)=0D0 | |
40717 | 580 CONTINUE | |
40718 | DO 600 I1=NLOW+2,NUPP | |
40719 | DO 590 I2=NLOW+1,I1-1 | |
40720 | CTHE=(P(I1,1)*P(I2,1)+P(I1,2)*P(I2,2)+P(I1,3)*P(I2,3))/ | |
40721 | & (P(I1,5)*P(I2,5)) | |
40722 | THE=ACOS(MAX(-1D0,MIN(1D0,CTHE))) | |
40723 | ITHE=MAX(1,MIN(50,1+INT(50D0*THE/PARU(1)))) | |
40724 | FEVEE(ITHE)=FEVEE(ITHE)+FAC*P(I1,4)*P(I2,4) | |
40725 | 590 CONTINUE | |
40726 | 600 CONTINUE | |
40727 | DO 610 J=1,25 | |
40728 | FE1EC(J)=FE1EC(J)+FEVEE(J) | |
40729 | FE2EC(J)=FE2EC(J)+FEVEE(J)**2 | |
40730 | FE1EC(51-J)=FE1EC(51-J)+FEVEE(51-J) | |
40731 | FE2EC(51-J)=FE2EC(51-J)+FEVEE(51-J)**2 | |
40732 | FE1EA(J)=FE1EA(J)+(FEVEE(51-J)-FEVEE(J)) | |
40733 | FE2EA(J)=FE2EA(J)+(FEVEE(51-J)-FEVEE(J))**2 | |
40734 | 610 CONTINUE | |
40735 | MSTU(62)=NUPP-NLOW | |
40736 | ||
40737 | C...Write statistics on Energy-Energy Correlation. | |
40738 | ELSEIF(MTABU.EQ.42) THEN | |
40739 | FAC=1D0/MAX(1,NEVEE) | |
40740 | WRITE(MSTU(11),5700) NEVEE | |
40741 | DO 620 J=1,25 | |
40742 | FEEC1=FAC*FE1EC(J) | |
40743 | FEES1=SQRT(MAX(0D0,FAC*(FAC*FE2EC(J)-FEEC1**2))) | |
40744 | FEEC2=FAC*FE1EC(51-J) | |
40745 | FEES2=SQRT(MAX(0D0,FAC*(FAC*FE2EC(51-J)-FEEC2**2))) | |
40746 | FEECA=FAC*FE1EA(J) | |
40747 | FEESA=SQRT(MAX(0D0,FAC*(FAC*FE2EA(J)-FEECA**2))) | |
40748 | WRITE(MSTU(11),5800) 3.6D0*(J-1),3.6D0*J,FEEC1,FEES1, | |
40749 | & FEEC2,FEES2,FEECA,FEESA | |
40750 | 620 CONTINUE | |
40751 | ||
40752 | C...Copy statistics on Energy-Energy Correlation into /PYJETS/. | |
40753 | ELSEIF(MTABU.EQ.43) THEN | |
40754 | FAC=1D0/MAX(1,NEVEE) | |
40755 | DO 630 I=1,25 | |
40756 | K(I,1)=32 | |
40757 | K(I,2)=99 | |
40758 | K(I,3)=0 | |
40759 | K(I,4)=0 | |
40760 | K(I,5)=0 | |
40761 | P(I,1)=FAC*FE1EC(I) | |
40762 | V(I,1)=SQRT(MAX(0D0,FAC*(FAC*FE2EC(I)-P(I,1)**2))) | |
40763 | P(I,2)=FAC*FE1EC(51-I) | |
40764 | V(I,2)=SQRT(MAX(0D0,FAC*(FAC*FE2EC(51-I)-P(I,2)**2))) | |
40765 | P(I,3)=FAC*FE1EA(I) | |
40766 | V(I,3)=SQRT(MAX(0D0,FAC*(FAC*FE2EA(I)-P(I,3)**2))) | |
40767 | P(I,4)=PARU(1)*(I-1)/50D0 | |
40768 | P(I,5)=PARU(1)*I/50D0 | |
40769 | V(I,4)=3.6D0*(I-1) | |
40770 | V(I,5)=3.6D0*I | |
40771 | 630 CONTINUE | |
40772 | N=25 | |
40773 | DO 640 J=1,5 | |
40774 | K(N+1,J)=0 | |
40775 | P(N+1,J)=0D0 | |
40776 | V(N+1,J)=0D0 | |
40777 | 640 CONTINUE | |
40778 | K(N+1,1)=32 | |
40779 | K(N+1,2)=99 | |
40780 | K(N+1,5)=NEVEE | |
40781 | MSTU(3)=1 | |
40782 | ||
40783 | C...Reset statistics on decay channels. | |
40784 | ELSEIF(MTABU.EQ.50) THEN | |
40785 | NEVDC=0 | |
40786 | NKFDC=0 | |
40787 | NREDC=0 | |
40788 | ||
40789 | C...Identify and order flavour content of final state. | |
40790 | ELSEIF(MTABU.EQ.51) THEN | |
40791 | NEVDC=NEVDC+1 | |
40792 | NDS=0 | |
40793 | DO 670 I=1,N | |
40794 | IF(K(I,1).LE.0.OR.K(I,1).GE.6) GOTO 670 | |
40795 | NDS=NDS+1 | |
40796 | IF(NDS.GT.8) THEN | |
40797 | NREDC=NREDC+1 | |
40798 | RETURN | |
40799 | ENDIF | |
40800 | KFM=2*IABS(K(I,2)) | |
40801 | IF(K(I,2).LT.0) KFM=KFM-1 | |
40802 | DO 650 IDS=NDS-1,1,-1 | |
40803 | IIN=IDS+1 | |
40804 | IF(KFM.LT.KFDM(IDS)) GOTO 660 | |
40805 | KFDM(IDS+1)=KFDM(IDS) | |
40806 | 650 CONTINUE | |
40807 | IIN=1 | |
40808 | 660 KFDM(IIN)=KFM | |
40809 | 670 CONTINUE | |
40810 | ||
40811 | C...Find whether old or new final state. | |
40812 | DO 690 IDC=1,NKFDC | |
40813 | IF(NDS.LT.KFDC(IDC,0)) THEN | |
40814 | IKFDC=IDC | |
40815 | GOTO 700 | |
40816 | ELSEIF(NDS.EQ.KFDC(IDC,0)) THEN | |
40817 | DO 680 I=1,NDS | |
40818 | IF(KFDM(I).LT.KFDC(IDC,I)) THEN | |
40819 | IKFDC=IDC | |
40820 | GOTO 700 | |
40821 | ELSEIF(KFDM(I).GT.KFDC(IDC,I)) THEN | |
40822 | GOTO 690 | |
40823 | ENDIF | |
40824 | 680 CONTINUE | |
40825 | IKFDC=-IDC | |
40826 | GOTO 700 | |
40827 | ENDIF | |
40828 | 690 CONTINUE | |
40829 | IKFDC=NKFDC+1 | |
40830 | 700 IF(IKFDC.LT.0) THEN | |
40831 | IKFDC=-IKFDC | |
40832 | ELSEIF(NKFDC.GE.200) THEN | |
40833 | NREDC=NREDC+1 | |
40834 | RETURN | |
40835 | ELSE | |
40836 | DO 720 IDC=NKFDC,IKFDC,-1 | |
40837 | NPDC(IDC+1)=NPDC(IDC) | |
40838 | DO 710 I=0,8 | |
40839 | KFDC(IDC+1,I)=KFDC(IDC,I) | |
40840 | 710 CONTINUE | |
40841 | 720 CONTINUE | |
40842 | NKFDC=NKFDC+1 | |
40843 | KFDC(IKFDC,0)=NDS | |
40844 | DO 730 I=1,NDS | |
40845 | KFDC(IKFDC,I)=KFDM(I) | |
40846 | 730 CONTINUE | |
40847 | NPDC(IKFDC)=0 | |
40848 | ENDIF | |
40849 | NPDC(IKFDC)=NPDC(IKFDC)+1 | |
40850 | ||
40851 | C...Write statistics on decay channels. | |
40852 | ELSEIF(MTABU.EQ.52) THEN | |
40853 | FAC=1D0/MAX(1,NEVDC) | |
40854 | WRITE(MSTU(11),5900) NEVDC | |
40855 | DO 750 IDC=1,NKFDC | |
40856 | DO 740 I=1,KFDC(IDC,0) | |
40857 | KFM=KFDC(IDC,I) | |
40858 | KF=(KFM+1)/2 | |
40859 | IF(2*KF.NE.KFM) KF=-KF | |
40860 | CALL PYNAME(KF,CHAU) | |
40861 | CHDC(I)=CHAU(1:12) | |
40862 | IF(CHAU(13:13).NE.' ') CHDC(I)(12:12)='?' | |
40863 | 740 CONTINUE | |
40864 | WRITE(MSTU(11),6000) FAC*NPDC(IDC),(CHDC(I),I=1,KFDC(IDC,0)) | |
40865 | 750 CONTINUE | |
40866 | IF(NREDC.NE.0) WRITE(MSTU(11),6100) FAC*NREDC | |
40867 | ||
40868 | C...Copy statistics on decay channels into /PYJETS/. | |
40869 | ELSEIF(MTABU.EQ.53) THEN | |
40870 | FAC=1D0/MAX(1,NEVDC) | |
40871 | DO 780 IDC=1,NKFDC | |
40872 | K(IDC,1)=32 | |
40873 | K(IDC,2)=99 | |
40874 | K(IDC,3)=0 | |
40875 | K(IDC,4)=0 | |
40876 | K(IDC,5)=KFDC(IDC,0) | |
40877 | DO 760 J=1,5 | |
40878 | P(IDC,J)=0D0 | |
40879 | V(IDC,J)=0D0 | |
40880 | 760 CONTINUE | |
40881 | DO 770 I=1,KFDC(IDC,0) | |
40882 | KFM=KFDC(IDC,I) | |
40883 | KF=(KFM+1)/2 | |
40884 | IF(2*KF.NE.KFM) KF=-KF | |
40885 | IF(I.LE.5) P(IDC,I)=KF | |
40886 | IF(I.GE.6) V(IDC,I-5)=KF | |
40887 | 770 CONTINUE | |
40888 | V(IDC,5)=FAC*NPDC(IDC) | |
40889 | 780 CONTINUE | |
40890 | N=NKFDC | |
40891 | DO 790 J=1,5 | |
40892 | K(N+1,J)=0 | |
40893 | P(N+1,J)=0D0 | |
40894 | V(N+1,J)=0D0 | |
40895 | 790 CONTINUE | |
40896 | K(N+1,1)=32 | |
40897 | K(N+1,2)=99 | |
40898 | K(N+1,5)=NEVDC | |
40899 | V(N+1,5)=FAC*NREDC | |
40900 | MSTU(3)=1 | |
40901 | ENDIF | |
40902 | ||
40903 | C...Format statements for output on unit MSTU(11) (default 6). | |
40904 | 5000 FORMAT(///20X,'Event statistics - initial state'/ | |
40905 | &20X,'based on an analysis of ',I6,' events'// | |
40906 | &3X,'Main flavours after',8X,'Fraction',4X,'Subfractions ', | |
40907 | &'according to fragmenting system multiplicity'/ | |
40908 | &4X,'hard interaction',24X,'1',7X,'2',7X,'3',7X,'4',7X,'5', | |
40909 | &6X,'6-7',5X,'8-10',3X,'11-15',3X,'16-25',4X,'>25'/) | |
40910 | 5100 FORMAT(3X,A12,1X,A12,F10.5,1X,10F8.4) | |
40911 | 5200 FORMAT(///20X,'Event statistics - final state'/ | |
40912 | &20X,'based on an analysis of ',I7,' events'// | |
40913 | &5X,'Mean primary multiplicity =',F10.4/ | |
40914 | &5X,'Mean final multiplicity =',F10.4/ | |
40915 | &5X,'Mean charged multiplicity =',F10.4// | |
40916 | &5X,'Number of particles produced per event (directly and via ', | |
40917 | &'decays/branchings)'/ | |
40918 | &8X,'KF Particle/jet MDCY',10X,'Particles',13X,'Antiparticles', | |
40919 | &8X,'Total'/35X,'prim seco prim seco'/) | |
40920 | 5300 FORMAT(1X,I9,4X,A16,I2,5(1X,F11.6)) | |
40921 | 5400 FORMAT(///20X,'Factorial moments analysis of multiplicity'/ | |
40922 | &20X,'based on an analysis of ',I6,' events'// | |
40923 | &3X,'delta-',A3,' delta-phi <n>/bin',10X,'<F2>',18X,'<F3>', | |
40924 | &18X,'<F4>',18X,'<F5>'/35X,4(' value error ')) | |
40925 | 5500 FORMAT(10X) | |
40926 | 5600 FORMAT(2X,2F10.4,F12.4,4(F12.4,F10.4)) | |
40927 | 5700 FORMAT(///20X,'Energy-Energy Correlation and Asymmetry'/ | |
40928 | &20X,'based on an analysis of ',I6,' events'// | |
40929 | &2X,'theta range',8X,'EEC(theta)',8X,'EEC(180-theta)',7X, | |
40930 | &'EECA(theta)'/2X,'in degrees ',3(' value error')/) | |
40931 | 5800 FORMAT(2X,F4.1,' - ',F4.1,3(F11.4,F9.4)) | |
40932 | 5900 FORMAT(///20X,'Decay channel analysis - final state'/ | |
40933 | &20X,'based on an analysis of ',I6,' events'// | |
40934 | &2X,'Probability',10X,'Complete final state'/) | |
40935 | 6000 FORMAT(2X,F9.5,5X,8(A12,1X)) | |
40936 | 6100 FORMAT(2X,F9.5,5X,'into other channels (more than 8 particles ', | |
40937 | &'or table overflow)') | |
40938 | ||
40939 | RETURN | |
40940 | END | |
40941 | ||
40942 | C********************************************************************* | |
40943 | ||
40944 | C...PYEEVT | |
40945 | C...Handles the generation of an e+e- annihilation jet event. | |
40946 | ||
40947 | SUBROUTINE PYEEVT(KFL,ECM) | |
40948 | C...Double precision and integer declarations. | |
40949 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
40950 | INTEGER PYK,PYCHGE,PYCOMP | |
40951 | C...Commonblocks. | |
40952 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
40953 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
40954 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
40955 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
40956 | ||
40957 | C...Check input parameters. | |
40958 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
40959 | IF(KFL.LT.0.OR.KFL.GT.8) THEN | |
40960 | CALL PYERRM(16,'(PYEEVT:) called with unknown flavour code') | |
40961 | IF(MSTU(21).GE.1) RETURN | |
40962 | ENDIF | |
40963 | IF(KFL.LE.5) ECMMIN=PARJ(127)+2.02D0*PARF(100+MAX(1,KFL)) | |
40964 | IF(KFL.GE.6) ECMMIN=PARJ(127)+2.02D0*PMAS(KFL,1) | |
40965 | IF(ECM.LT.ECMMIN) THEN | |
40966 | CALL PYERRM(16,'(PYEEVT:) called with too small CM energy') | |
40967 | IF(MSTU(21).GE.1) RETURN | |
40968 | ENDIF | |
40969 | ||
40970 | C...Check consistency of MSTJ options set. | |
40971 | IF(MSTJ(109).EQ.2.AND.MSTJ(110).NE.1) THEN | |
40972 | CALL PYERRM(6, | |
40973 | & '(PYEEVT:) MSTJ(109) value requires MSTJ(110) = 1') | |
40974 | MSTJ(110)=1 | |
40975 | ENDIF | |
40976 | IF(MSTJ(109).EQ.2.AND.MSTJ(111).NE.0) THEN | |
40977 | CALL PYERRM(6, | |
40978 | & '(PYEEVT:) MSTJ(109) value requires MSTJ(111) = 0') | |
40979 | MSTJ(111)=0 | |
40980 | ENDIF | |
40981 | ||
40982 | C...Initialize alpha_strong and total cross-section. | |
40983 | MSTU(111)=MSTJ(108) | |
40984 | IF(MSTJ(108).EQ.2.AND.(MSTJ(101).EQ.0.OR.MSTJ(101).EQ.1)) | |
40985 | &MSTU(111)=1 | |
40986 | PARU(112)=PARJ(121) | |
40987 | IF(MSTU(111).EQ.2) PARU(112)=PARJ(122) | |
40988 | IF(MSTJ(116).GT.0.AND.(MSTJ(116).GE.2.OR.ABS(ECM-PARJ(151)).GE. | |
40989 | &PARJ(139).OR.10*MSTJ(102)+KFL.NE.MSTJ(119))) CALL PYXTEE(KFL,ECM, | |
40990 | &XTOT) | |
40991 | IF(MSTJ(116).GE.3) MSTJ(116)=1 | |
40992 | PARJ(171)=0D0 | |
40993 | ||
40994 | C...Add initial e+e- to event record (documentation only). | |
40995 | NTRY=0 | |
40996 | 100 NTRY=NTRY+1 | |
40997 | IF(NTRY.GT.100) THEN | |
40998 | CALL PYERRM(14,'(PYEEVT:) caught in an infinite loop') | |
40999 | RETURN | |
41000 | ENDIF | |
41001 | MSTU(24)=0 | |
41002 | NC=0 | |
41003 | IF(MSTJ(115).GE.2) THEN | |
41004 | NC=NC+2 | |
41005 | CALL PY1ENT(NC-1,11,0.5D0*ECM,0D0,0D0) | |
41006 | K(NC-1,1)=21 | |
41007 | CALL PY1ENT(NC,-11,0.5D0*ECM,PARU(1),0D0) | |
41008 | K(NC,1)=21 | |
41009 | ENDIF | |
41010 | ||
41011 | C...Radiative photon (in initial state). | |
41012 | MK=0 | |
41013 | ECMC=ECM | |
41014 | IF(MSTJ(107).GE.1.AND.MSTJ(116).GE.1) CALL PYRADK(ECM,MK,PAK, | |
41015 | &THEK,PHIK,ALPK) | |
41016 | IF(MK.EQ.1) ECMC=SQRT(ECM*(ECM-2D0*PAK)) | |
41017 | IF(MSTJ(115).GE.1.AND.MK.EQ.1) THEN | |
41018 | NC=NC+1 | |
41019 | CALL PY1ENT(NC,22,PAK,THEK,PHIK) | |
41020 | K(NC,3)=MIN(MSTJ(115)/2,1) | |
41021 | ENDIF | |
41022 | ||
41023 | C...Virtual exchange boson (gamma or Z0). | |
41024 | IF(MSTJ(115).GE.3) THEN | |
41025 | NC=NC+1 | |
41026 | KF=22 | |
41027 | IF(MSTJ(102).EQ.2) KF=23 | |
41028 | MSTU10=MSTU(10) | |
41029 | MSTU(10)=1 | |
41030 | P(NC,5)=ECMC | |
41031 | CALL PY1ENT(NC,KF,ECMC,0D0,0D0) | |
41032 | K(NC,1)=21 | |
41033 | K(NC,3)=1 | |
41034 | MSTU(10)=MSTU10 | |
41035 | ENDIF | |
41036 | ||
41037 | C...Choice of flavour and jet configuration. | |
41038 | CALL PYXKFL(KFL,ECM,ECMC,KFLC) | |
41039 | IF(KFLC.EQ.0) GOTO 100 | |
41040 | CALL PYXJET(ECMC,NJET,CUT) | |
41041 | KFLN=21 | |
41042 | IF(NJET.EQ.4) CALL PYX4JT(NJET,CUT,KFLC,ECMC,KFLN,X1,X2,X4, | |
41043 | &X12,X14) | |
41044 | IF(NJET.EQ.3) CALL PYX3JT(NJET,CUT,KFLC,ECMC,X1,X3) | |
41045 | IF(NJET.EQ.2) MSTJ(120)=1 | |
41046 | ||
41047 | C...Fill jet configuration and origin. | |
41048 | IF(NJET.EQ.2.AND.MSTJ(101).NE.5) CALL PY2ENT(NC+1,KFLC,-KFLC,ECMC) | |
41049 | IF(NJET.EQ.2.AND.MSTJ(101).EQ.5) CALL PY2ENT(-(NC+1),KFLC,-KFLC, | |
41050 | &ECMC) | |
41051 | IF(NJET.EQ.3) CALL PY3ENT(NC+1,KFLC,21,-KFLC,ECMC,X1,X3) | |
41052 | IF(NJET.EQ.4.AND.KFLN.EQ.21) CALL PY4ENT(NC+1,KFLC,KFLN,KFLN, | |
41053 | &-KFLC,ECMC,X1,X2,X4,X12,X14) | |
41054 | IF(NJET.EQ.4.AND.KFLN.NE.21) CALL PY4ENT(NC+1,KFLC,-KFLN,KFLN, | |
41055 | &-KFLC,ECMC,X1,X2,X4,X12,X14) | |
41056 | IF(MSTU(24).NE.0) GOTO 100 | |
41057 | DO 110 IP=NC+1,N | |
41058 | K(IP,3)=K(IP,3)+MIN(MSTJ(115)/2,1)+(MSTJ(115)/3)*(NC-1) | |
41059 | 110 CONTINUE | |
41060 | ||
41061 | C...Angular orientation according to matrix element. | |
41062 | IF(MSTJ(106).EQ.1) THEN | |
41063 | CALL PYXDIF(NC,NJET,KFLC,ECMC,CHI,THE,PHI) | |
41064 | CALL PYROBO(NC+1,N,0D0,CHI,0D0,0D0,0D0) | |
41065 | CALL PYROBO(NC+1,N,THE,PHI,0D0,0D0,0D0) | |
41066 | ENDIF | |
41067 | ||
41068 | C...Rotation and boost from radiative photon. | |
41069 | IF(MK.EQ.1) THEN | |
41070 | DBEK=-PAK/(ECM-PAK) | |
41071 | NMIN=NC+1-MSTJ(115)/3 | |
41072 | CALL PYROBO(NMIN,N,0D0,-PHIK,0D0,0D0,0D0) | |
41073 | CALL PYROBO(NMIN,N,ALPK,0D0,DBEK*SIN(THEK),0D0,DBEK*COS(THEK)) | |
41074 | CALL PYROBO(NMIN,N,0D0,PHIK,0D0,0D0,0D0) | |
41075 | ENDIF | |
41076 | ||
41077 | C...Generate parton shower. Rearrange along strings and check. | |
41078 | IF(MSTJ(101).EQ.5) THEN | |
41079 | CALL PYSHOW(N-1,N,ECMC) | |
41080 | MSTJ14=MSTJ(14) | |
41081 | IF(MSTJ(105).EQ.-1) MSTJ(14)=-1 | |
41082 | IF(MSTJ(105).GE.0) MSTU(28)=0 | |
41083 | CALL PYPREP(0) | |
41084 | MSTJ(14)=MSTJ14 | |
41085 | IF(MSTJ(105).GE.0.AND.MSTU(28).NE.0) GOTO 100 | |
41086 | ENDIF | |
41087 | ||
41088 | C...Fragmentation/decay generation. Information for PYTABU. | |
41089 | IF(MSTJ(105).EQ.1) CALL PYEXEC | |
41090 | MSTU(161)=KFLC | |
41091 | MSTU(162)=-KFLC | |
41092 | ||
41093 | RETURN | |
41094 | END | |
41095 | ||
41096 | C********************************************************************* | |
41097 | ||
41098 | C...PYXTEE | |
41099 | C...Calculates total cross-section, including initial state | |
41100 | C...radiation effects. | |
41101 | ||
41102 | SUBROUTINE PYXTEE(KFL,ECM,XTOT) | |
41103 | ||
41104 | C...Double precision and integer declarations. | |
41105 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41106 | INTEGER PYK,PYCHGE,PYCOMP | |
41107 | C...Commonblocks. | |
41108 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41109 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
41110 | SAVE /PYDAT1/,/PYDAT2/ | |
41111 | ||
41112 | C...Status, (optimized) Q^2 scale, alpha_strong. | |
41113 | PARJ(151)=ECM | |
41114 | MSTJ(119)=10*MSTJ(102)+KFL | |
41115 | IF(MSTJ(111).EQ.0) THEN | |
41116 | Q2R=ECM**2 | |
41117 | ELSEIF(MSTU(111).EQ.0) THEN | |
41118 | PARJ(168)=MIN(1D0,MAX(PARJ(128),EXP(-12D0*PARU(1)/ | |
41119 | & ((33D0-2D0*MSTU(112))*PARU(111))))) | |
41120 | Q2R=PARJ(168)*ECM**2 | |
41121 | ELSE | |
41122 | PARJ(168)=MIN(1D0,MAX(PARJ(128),PARU(112)/ECM, | |
41123 | & (2D0*PARU(112)/ECM)**2)) | |
41124 | Q2R=PARJ(168)*ECM**2 | |
41125 | ENDIF | |
41126 | ALSPI=PYALPS(Q2R)/PARU(1) | |
41127 | ||
41128 | C...QCD corrections factor in R. | |
41129 | IF(MSTJ(101).EQ.0.OR.MSTJ(109).EQ.1) THEN | |
41130 | RQCD=1D0 | |
41131 | ELSEIF(IABS(MSTJ(101)).EQ.1.AND.MSTJ(109).EQ.0) THEN | |
41132 | RQCD=1D0+ALSPI | |
41133 | ELSEIF(MSTJ(109).EQ.0) THEN | |
41134 | RQCD=1D0+ALSPI+(1.986D0-0.115D0*MSTU(118))*ALSPI**2 | |
41135 | IF(MSTJ(111).EQ.1) RQCD=MAX(1D0,RQCD+(33D0-2D0*MSTU(112))/12D0* | |
41136 | & LOG(PARJ(168))*ALSPI**2) | |
41137 | ELSEIF(IABS(MSTJ(101)).EQ.1) THEN | |
41138 | RQCD=1D0+(3D0/4D0)*ALSPI | |
41139 | ELSE | |
41140 | RQCD=1D0+(3D0/4D0)*ALSPI-(3D0/32D0+0.519D0*MSTU(118))*ALSPI**2 | |
41141 | ENDIF | |
41142 | ||
41143 | C...Calculate Z0 width if default value not acceptable. | |
41144 | IF(MSTJ(102).GE.3) THEN | |
41145 | RVA=3D0*(3D0+(4D0*PARU(102)-1D0)**2)+6D0*RQCD*(2D0+ | |
41146 | & (1D0-8D0*PARU(102)/3D0)**2+(4D0*PARU(102)/3D0-1D0)**2) | |
41147 | DO 100 KFLC=5,6 | |
41148 | VQ=1D0 | |
41149 | IF(MOD(MSTJ(103),2).EQ.1) VQ=SQRT(MAX(0D0,1D0- | |
41150 | & (2D0*PYMASS(KFLC)/ ECM)**2)) | |
41151 | IF(KFLC.EQ.5) VF=4D0*PARU(102)/3D0-1D0 | |
41152 | IF(KFLC.EQ.6) VF=1D0-8D0*PARU(102)/3D0 | |
41153 | RVA=RVA+3D0*RQCD*(0.5D0*VQ*(3D0-VQ**2)*VF**2+VQ**3) | |
41154 | 100 CONTINUE | |
41155 | PARJ(124)=PARU(101)*PARJ(123)*RVA/(48D0*PARU(102)* | |
41156 | & (1D0-PARU(102))) | |
41157 | ENDIF | |
41158 | ||
41159 | C...Calculate propagator and related constants for QFD case. | |
41160 | POLL=1D0-PARJ(131)*PARJ(132) | |
41161 | IF(MSTJ(102).GE.2) THEN | |
41162 | SFF=1D0/(16D0*PARU(102)*(1D0-PARU(102))) | |
41163 | SFW=ECM**4/((ECM**2-PARJ(123)**2)**2+(PARJ(123)*PARJ(124))**2) | |
41164 | SFI=SFW*(1D0-(PARJ(123)/ECM)**2) | |
41165 | VE=4D0*PARU(102)-1D0 | |
41166 | SF1I=SFF*(VE*POLL+PARJ(132)-PARJ(131)) | |
41167 | SF1W=SFF**2*((VE**2+1D0)*POLL+2D0*VE*(PARJ(132)-PARJ(131))) | |
41168 | HF1I=SFI*SF1I | |
41169 | HF1W=SFW*SF1W | |
41170 | ENDIF | |
41171 | ||
41172 | C...Loop over different flavours: charge, velocity. | |
41173 | RTOT=0D0 | |
41174 | RQQ=0D0 | |
41175 | RQV=0D0 | |
41176 | RVA=0D0 | |
41177 | DO 110 KFLC=1,MAX(MSTJ(104),KFL) | |
41178 | IF(KFL.GT.0.AND.KFLC.NE.KFL) GOTO 110 | |
41179 | MSTJ(93)=1 | |
41180 | PMQ=PYMASS(KFLC) | |
41181 | IF(ECM.LT.2D0*PMQ+PARJ(127)) GOTO 110 | |
41182 | QF=KCHG(KFLC,1)/3D0 | |
41183 | VQ=1D0 | |
41184 | IF(MOD(MSTJ(103),2).EQ.1) VQ=SQRT(1D0-(2D0*PMQ/ECM)**2) | |
41185 | ||
41186 | C...Calculate R and sum of charges for QED or QFD case. | |
41187 | RQQ=RQQ+3D0*QF**2*POLL | |
41188 | IF(MSTJ(102).LE.1) THEN | |
41189 | RTOT=RTOT+3D0*0.5D0*VQ*(3D0-VQ**2)*QF**2*POLL | |
41190 | ELSE | |
41191 | VF=SIGN(1D0,QF)-4D0*QF*PARU(102) | |
41192 | RQV=RQV-6D0*QF*VF*SF1I | |
41193 | RVA=RVA+3D0*(VF**2+1D0)*SF1W | |
41194 | RTOT=RTOT+3D0*(0.5D0*VQ*(3D0-VQ**2)*(QF**2*POLL- | |
41195 | & 2D0*QF*VF*HF1I+VF**2*HF1W)+VQ**3*HF1W) | |
41196 | ENDIF | |
41197 | 110 CONTINUE | |
41198 | RSUM=RQQ | |
41199 | IF(MSTJ(102).GE.2) RSUM=RQQ+SFI*RQV+SFW*RVA | |
41200 | ||
41201 | C...Calculate cross-section, including QCD corrections. | |
41202 | PARJ(141)=RQQ | |
41203 | PARJ(142)=RTOT | |
41204 | PARJ(143)=RTOT*RQCD | |
41205 | PARJ(144)=PARJ(143) | |
41206 | PARJ(145)=PARJ(141)*86.8D0/ECM**2 | |
41207 | PARJ(146)=PARJ(142)*86.8D0/ECM**2 | |
41208 | PARJ(147)=PARJ(143)*86.8D0/ECM**2 | |
41209 | PARJ(148)=PARJ(147) | |
41210 | PARJ(157)=RSUM*RQCD | |
41211 | PARJ(158)=0D0 | |
41212 | PARJ(159)=0D0 | |
41213 | XTOT=PARJ(147) | |
41214 | IF(MSTJ(107).LE.0) RETURN | |
41215 | ||
41216 | C...Virtual cross-section. | |
41217 | XKL=PARJ(135) | |
41218 | XKU=MIN(PARJ(136),1D0-(2D0*PARJ(127)/ECM)**2) | |
41219 | ALE=2D0*LOG(ECM/PYMASS(11))-1D0 | |
41220 | SIGV=ALE/3D0+2D0*LOG(ECM**2/(PYMASS(13)*PYMASS(15)))/3D0-4D0/3D0+ | |
41221 | &1.526D0*LOG(ECM**2/0.932D0) | |
41222 | ||
41223 | C...Soft and hard radiative cross-section in QED case. | |
41224 | IF(MSTJ(102).LE.1) THEN | |
41225 | SIGV=1.5D0*ALE-0.5D0+PARU(1)**2/3D0+2D0*SIGV | |
41226 | SIGS=ALE*(2D0*LOG(XKL)-LOG(1D0-XKL)-XKL) | |
41227 | SIGH=ALE*(2D0*LOG(XKU/XKL)-LOG((1D0-XKU)/(1D0-XKL))-(XKU-XKL)) | |
41228 | ||
41229 | C...Soft and hard radiative cross-section in QFD case. | |
41230 | ELSE | |
41231 | SZM=1D0-(PARJ(123)/ECM)**2 | |
41232 | SZW=PARJ(123)*PARJ(124)/ECM**2 | |
41233 | PARJ(161)=-RQQ/RSUM | |
41234 | PARJ(162)=-(RQQ+RQV+RVA)/RSUM | |
41235 | PARJ(163)=(RQV*(1D0-0.5D0*SZM-SFI)+RVA*(1.5D0-SZM-SFW))/RSUM | |
41236 | PARJ(164)=(RQV*SZW**2*(1D0-2D0*SFW)+RVA*(2D0*SFI+SZW**2- | |
41237 | & 4D0+3D0*SZM-SZM**2))/(SZW*RSUM) | |
41238 | SIGV=1.5D0*ALE-0.5D0+PARU(1)**2/3D0+((2D0*RQQ+SFI*RQV)/ | |
41239 | & RSUM)*SIGV+(SZW*SFW*RQV/RSUM)*PARU(1)*20D0/9D0 | |
41240 | SIGS=ALE*(2D0*LOG(XKL)+PARJ(161)*LOG(1D0-XKL)+PARJ(162)*XKL+ | |
41241 | & PARJ(163)*LOG(((XKL-SZM)**2+SZW**2)/(SZM**2+SZW**2))+ | |
41242 | & PARJ(164)*(ATAN((XKL-SZM)/SZW)-ATAN(-SZM/SZW))) | |
41243 | SIGH=ALE*(2D0*LOG(XKU/XKL)+PARJ(161)*LOG((1D0-XKU)/ | |
41244 | & (1D0-XKL))+PARJ(162)*(XKU-XKL)+PARJ(163)* | |
41245 | & LOG(((XKU-SZM)**2+SZW**2)/((XKL-SZM)**2+SZW**2))+ | |
41246 | & PARJ(164)*(ATAN((XKU-SZM)/SZW)-ATAN((XKL-SZM)/SZW))) | |
41247 | ENDIF | |
41248 | ||
41249 | C...Total cross-section and fraction of hard photon events. | |
41250 | PARJ(160)=SIGH/(PARU(1)/PARU(101)+SIGV+SIGS+SIGH) | |
41251 | PARJ(157)=RSUM*(1D0+(PARU(101)/PARU(1))*(SIGV+SIGS+SIGH))*RQCD | |
41252 | PARJ(144)=PARJ(157) | |
41253 | PARJ(148)=PARJ(144)*86.8D0/ECM**2 | |
41254 | XTOT=PARJ(148) | |
41255 | ||
41256 | RETURN | |
41257 | END | |
41258 | ||
41259 | C********************************************************************* | |
41260 | ||
41261 | C...PYRADK | |
41262 | C...Generates initial state photon radiation. | |
41263 | ||
41264 | SUBROUTINE PYRADK(ECM,MK,PAK,THEK,PHIK,ALPK) | |
41265 | ||
41266 | C...Double precision and integer declarations. | |
41267 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41268 | INTEGER PYK,PYCHGE,PYCOMP | |
41269 | C...Commonblocks. | |
41270 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41271 | SAVE /PYDAT1/ | |
41272 | ||
41273 | C...Function: cumulative hard photon spectrum in QFD case. | |
41274 | FXK(XX)=2D0*LOG(XX)+PARJ(161)*LOG(1D0-XX)+PARJ(162)*XX+ | |
41275 | &PARJ(163)*LOG((XX-SZM)**2+SZW**2)+PARJ(164)*ATAN((XX-SZM)/SZW) | |
41276 | ||
41277 | C...Determine whether radiative photon or not. | |
41278 | MK=0 | |
41279 | PAK=0D0 | |
41280 | IF(PARJ(160).LT.PYR(0)) RETURN | |
41281 | MK=1 | |
41282 | ||
41283 | C...Photon energy range. Find photon momentum in QED case. | |
41284 | XKL=PARJ(135) | |
41285 | XKU=MIN(PARJ(136),1D0-(2D0*PARJ(127)/ECM)**2) | |
41286 | IF(MSTJ(102).LE.1) THEN | |
41287 | 100 XK=1D0/(1D0+(1D0/XKL-1D0)*((1D0/XKU-1D0)/(1D0/XKL-1D0))**PYR(0)) | |
41288 | IF(1D0+(1D0-XK)**2.LT.2D0*PYR(0)) GOTO 100 | |
41289 | ||
41290 | C...Ditto in QFD case, by numerical inversion of integrated spectrum. | |
41291 | ELSE | |
41292 | SZM=1D0-(PARJ(123)/ECM)**2 | |
41293 | SZW=PARJ(123)*PARJ(124)/ECM**2 | |
41294 | FXKL=FXK(XKL) | |
41295 | FXKU=FXK(XKU) | |
41296 | FXKD=1D-4*(FXKU-FXKL) | |
41297 | FXKR=FXKL+PYR(0)*(FXKU-FXKL) | |
41298 | NXK=0 | |
41299 | 110 NXK=NXK+1 | |
41300 | XK=0.5D0*(XKL+XKU) | |
41301 | FXKV=FXK(XK) | |
41302 | IF(FXKV.GT.FXKR) THEN | |
41303 | XKU=XK | |
41304 | FXKU=FXKV | |
41305 | ELSE | |
41306 | XKL=XK | |
41307 | FXKL=FXKV | |
41308 | ENDIF | |
41309 | IF(NXK.LT.15.AND.FXKU-FXKL.GT.FXKD) GOTO 110 | |
41310 | XK=XKL+(XKU-XKL)*(FXKR-FXKL)/(FXKU-FXKL) | |
41311 | ENDIF | |
41312 | PAK=0.5D0*ECM*XK | |
41313 | ||
41314 | C...Photon polar and azimuthal angle. | |
41315 | PME=2D0*(PYMASS(11)/ECM)**2 | |
41316 | 120 CTHM=PME*(2D0/PME)**PYR(0) | |
41317 | IF(1D0-(XK**2*CTHM*(1D0-0.5D0*CTHM)+2D0*(1D0-XK)*PME/MAX(PME, | |
41318 | &CTHM*(1D0-0.5D0*CTHM)))/(1D0+(1D0-XK)**2).LT.PYR(0)) GOTO 120 | |
41319 | CTHE=1D0-CTHM | |
41320 | IF(PYR(0).GT.0.5D0) CTHE=-CTHE | |
41321 | STHE=SQRT(MAX(0D0,(CTHM-PME)*(2D0-CTHM))) | |
41322 | THEK=PYANGL(CTHE,STHE) | |
41323 | PHIK=PARU(2)*PYR(0) | |
41324 | ||
41325 | C...Rotation angle for hadronic system. | |
41326 | SGN=1D0 | |
41327 | IF(0.5D0*(2D0-XK*(1D0-CTHE))**2/((2D0-XK)**2+(XK*CTHE)**2).GT. | |
41328 | &PYR(0)) SGN=-1D0 | |
41329 | ALPK=ASIN(SGN*STHE*(XK-SGN*(2D0*SQRT(1D0-XK)-2D0+XK)*CTHE)/ | |
41330 | &(2D0-XK*(1D0-SGN*CTHE))) | |
41331 | ||
41332 | RETURN | |
41333 | END | |
41334 | ||
41335 | C********************************************************************* | |
41336 | ||
41337 | C...PYXKFL | |
41338 | C...Selects flavour for produced qqbar pair. | |
41339 | ||
41340 | SUBROUTINE PYXKFL(KFL,ECM,ECMC,KFLC) | |
41341 | ||
41342 | C...Double precision and integer declarations. | |
41343 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41344 | INTEGER PYK,PYCHGE,PYCOMP | |
41345 | C...Commonblocks. | |
41346 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41347 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
41348 | SAVE /PYDAT1/,/PYDAT2/ | |
41349 | ||
41350 | C...Calculate maximum weight in QED or QFD case. | |
41351 | IF(MSTJ(102).LE.1) THEN | |
41352 | RFMAX=4D0/9D0 | |
41353 | ELSE | |
41354 | POLL=1D0-PARJ(131)*PARJ(132) | |
41355 | SFF=1D0/(16D0*PARU(102)*(1D0-PARU(102))) | |
41356 | SFW=ECMC**4/((ECMC**2-PARJ(123)**2)**2+(PARJ(123)*PARJ(124))**2) | |
41357 | SFI=SFW*(1D0-(PARJ(123)/ECMC)**2) | |
41358 | VE=4D0*PARU(102)-1D0 | |
41359 | HF1I=SFI*SFF*(VE*POLL+PARJ(132)-PARJ(131)) | |
41360 | HF1W=SFW*SFF**2*((VE**2+1D0)*POLL+2D0*VE*(PARJ(132)-PARJ(131))) | |
41361 | RFMAX=MAX(4D0/9D0*POLL-4D0/3D0*(1D0-8D0*PARU(102)/3D0)*HF1I+ | |
41362 | & ((1D0-8D0*PARU(102)/3D0)**2+1D0)*HF1W,1D0/9D0*POLL+2D0/3D0* | |
41363 | & (-1D0+4D0*PARU(102)/3D0)*HF1I+((-1D0+4D0*PARU(102)/3D0)**2+ | |
41364 | & 1D0)*HF1W) | |
41365 | ENDIF | |
41366 | ||
41367 | C...Choose flavour. Gives charge and velocity. | |
41368 | NTRY=0 | |
41369 | 100 NTRY=NTRY+1 | |
41370 | IF(NTRY.GT.100) THEN | |
41371 | CALL PYERRM(14,'(PYXKFL:) caught in an infinite loop') | |
41372 | KFLC=0 | |
41373 | RETURN | |
41374 | ENDIF | |
41375 | KFLC=KFL | |
41376 | IF(KFL.LE.0) KFLC=1+INT(MSTJ(104)*PYR(0)) | |
41377 | MSTJ(93)=1 | |
41378 | PMQ=PYMASS(KFLC) | |
41379 | IF(ECM.LT.2D0*PMQ+PARJ(127)) GOTO 100 | |
41380 | QF=KCHG(KFLC,1)/3D0 | |
41381 | VQ=1D0 | |
41382 | IF(MOD(MSTJ(103),2).EQ.1) VQ=SQRT(MAX(0D0,1D0-(2D0*PMQ/ECMC)**2)) | |
41383 | ||
41384 | C...Calculate weight in QED or QFD case. | |
41385 | IF(MSTJ(102).LE.1) THEN | |
41386 | RF=QF**2 | |
41387 | RFV=0.5D0*VQ*(3D0-VQ**2)*QF**2 | |
41388 | ELSE | |
41389 | VF=SIGN(1D0,QF)-4D0*QF*PARU(102) | |
41390 | RF=QF**2*POLL-2D0*QF*VF*HF1I+(VF**2+1D0)*HF1W | |
41391 | RFV=0.5D0*VQ*(3D0-VQ**2)*(QF**2*POLL-2D0*QF*VF*HF1I+VF**2*HF1W)+ | |
41392 | & VQ**3*HF1W | |
41393 | IF(RFV.GT.0D0) PARJ(171)=MIN(1D0,VQ**3*HF1W/RFV) | |
41394 | ENDIF | |
41395 | ||
41396 | C...Weighting or new event (radiative photon). Cross-section update. | |
41397 | IF(KFL.LE.0.AND.RF.LT.PYR(0)*RFMAX) GOTO 100 | |
41398 | PARJ(158)=PARJ(158)+1D0 | |
41399 | IF(ECMC.LT.2D0*PMQ+PARJ(127).OR.RFV.LT.PYR(0)*RF) KFLC=0 | |
41400 | IF(MSTJ(107).LE.0.AND.KFLC.EQ.0) GOTO 100 | |
41401 | IF(KFLC.NE.0) PARJ(159)=PARJ(159)+1D0 | |
41402 | PARJ(144)=PARJ(157)*PARJ(159)/PARJ(158) | |
41403 | PARJ(148)=PARJ(144)*86.8D0/ECM**2 | |
41404 | ||
41405 | RETURN | |
41406 | END | |
41407 | ||
41408 | C********************************************************************* | |
41409 | ||
41410 | C...PYXJET | |
41411 | C...Selects number of jets in matrix element approach. | |
41412 | ||
41413 | SUBROUTINE PYXJET(ECM,NJET,CUT) | |
41414 | ||
41415 | C...Double precision and integer declarations. | |
41416 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41417 | INTEGER PYK,PYCHGE,PYCOMP | |
41418 | C...Commonblocks. | |
41419 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41420 | SAVE /PYDAT1/ | |
41421 | C...Local array and data. | |
41422 | DIMENSION ZHUT(5) | |
41423 | DATA ZHUT/3.0922D0, 6.2291D0, 7.4782D0, 7.8440D0, 8.2560D0/ | |
41424 | ||
41425 | C...Trivial result for two-jets only, including parton shower. | |
41426 | IF(MSTJ(101).EQ.0.OR.MSTJ(101).EQ.5) THEN | |
41427 | CUT=0D0 | |
41428 | ||
41429 | C...QCD and Abelian vector gluon theory: Q^2 for jet rate and R. | |
41430 | ELSEIF(MSTJ(109).EQ.0.OR.MSTJ(109).EQ.2) THEN | |
41431 | CF=4D0/3D0 | |
41432 | IF(MSTJ(109).EQ.2) CF=1D0 | |
41433 | IF(MSTJ(111).EQ.0) THEN | |
41434 | Q2=ECM**2 | |
41435 | Q2R=ECM**2 | |
41436 | ELSEIF(MSTU(111).EQ.0) THEN | |
41437 | PARJ(169)=MIN(1D0,PARJ(129)) | |
41438 | Q2=PARJ(169)*ECM**2 | |
41439 | PARJ(168)=MIN(1D0,MAX(PARJ(128),EXP(-12D0*PARU(1)/ | |
41440 | & ((33D0-2D0*MSTU(112))*PARU(111))))) | |
41441 | Q2R=PARJ(168)*ECM**2 | |
41442 | ELSE | |
41443 | PARJ(169)=MIN(1D0,MAX(PARJ(129),(2D0*PARU(112)/ECM)**2)) | |
41444 | Q2=PARJ(169)*ECM**2 | |
41445 | PARJ(168)=MIN(1D0,MAX(PARJ(128),PARU(112)/ECM, | |
41446 | & (2D0*PARU(112)/ECM)**2)) | |
41447 | Q2R=PARJ(168)*ECM**2 | |
41448 | ENDIF | |
41449 | ||
41450 | C...alpha_strong for R and R itself. | |
41451 | ALSPI=(3D0/4D0)*CF*PYALPS(Q2R)/PARU(1) | |
41452 | IF(IABS(MSTJ(101)).EQ.1) THEN | |
41453 | RQCD=1D0+ALSPI | |
41454 | ELSEIF(MSTJ(109).EQ.0) THEN | |
41455 | RQCD=1D0+ALSPI+(1.986D0-0.115D0*MSTU(118))*ALSPI**2 | |
41456 | IF(MSTJ(111).EQ.1) RQCD=MAX(1D0,RQCD+ | |
41457 | & (33D0-2D0*MSTU(112))/12D0*LOG(PARJ(168))*ALSPI**2) | |
41458 | ELSE | |
41459 | RQCD=1D0+ALSPI-(3D0/32D0+0.519D0*MSTU(118))*(4D0*ALSPI/3D0)**2 | |
41460 | ENDIF | |
41461 | ||
41462 | C...alpha_strong for jet rate. Initial value for y cut. | |
41463 | ALSPI=(3D0/4D0)*CF*PYALPS(Q2)/PARU(1) | |
41464 | CUT=MAX(0.001D0,PARJ(125),(PARJ(126)/ECM)**2) | |
41465 | IF(IABS(MSTJ(101)).LE.1.OR.(MSTJ(109).EQ.0.AND.MSTJ(111).EQ.0)) | |
41466 | & CUT=MAX(CUT,EXP(-SQRT(0.75D0/ALSPI))/2D0) | |
41467 | IF(MSTJ(110).EQ.2) CUT=MAX(0.01D0,MIN(0.05D0,CUT)) | |
41468 | ||
41469 | C...Parametrization of first order three-jet cross-section. | |
41470 | 100 IF(MSTJ(101).EQ.0.OR.CUT.GE.0.25D0) THEN | |
41471 | PARJ(152)=0D0 | |
41472 | ELSE | |
41473 | PARJ(152)=(2D0*ALSPI/3D0)*((3D0-6D0*CUT+2D0*LOG(CUT))* | |
41474 | & LOG(CUT/(1D0-2D0*CUT))+(2.5D0+1.5D0*CUT-6.571D0)* | |
41475 | & (1D0-3D0*CUT)+5.833D0*(1D0-3D0*CUT)**2-3.894D0* | |
41476 | & (1D0-3D0*CUT)**3+1.342D0*(1D0-3D0*CUT)**4)/RQCD | |
41477 | IF(MSTJ(109).EQ.2.AND.(MSTJ(101).EQ.2.OR.MSTJ(101).LE.-2)) | |
41478 | & PARJ(152)=0D0 | |
41479 | ENDIF | |
41480 | ||
41481 | C...Parametrization of second order three-jet cross-section. | |
41482 | IF(IABS(MSTJ(101)).LE.1.OR.MSTJ(101).EQ.3.OR.MSTJ(109).EQ.2.OR. | |
41483 | & CUT.GE.0.25D0) THEN | |
41484 | PARJ(153)=0D0 | |
41485 | ELSEIF(MSTJ(110).LE.1) THEN | |
41486 | CT=LOG(1D0/CUT-2D0) | |
41487 | PARJ(153)=ALSPI**2*CT**2*(2.419D0+0.5989D0*CT+0.6782D0*CT**2- | |
41488 | & 0.2661D0*CT**3+0.01159D0*CT**4)/RQCD | |
41489 | ||
41490 | C...Interpolation in second/first order ratio for Zhu parametrization. | |
41491 | ELSEIF(MSTJ(110).EQ.2) THEN | |
41492 | IZA=0 | |
41493 | DO 110 IY=1,5 | |
41494 | IF(ABS(CUT-0.01D0*IY).LT.0.0001D0) IZA=IY | |
41495 | 110 CONTINUE | |
41496 | IF(IZA.NE.0) THEN | |
41497 | ZHURAT=ZHUT(IZA) | |
41498 | ELSE | |
41499 | IZ=100D0*CUT | |
41500 | ZHURAT=ZHUT(IZ)+(100D0*CUT-IZ)*(ZHUT(IZ+1)-ZHUT(IZ)) | |
41501 | ENDIF | |
41502 | PARJ(153)=ALSPI*PARJ(152)*ZHURAT | |
41503 | ENDIF | |
41504 | ||
41505 | C...Shift in second order three-jet cross-section with optimized Q^2. | |
41506 | IF(MSTJ(111).EQ.1.AND.IABS(MSTJ(101)).GE.2.AND.MSTJ(101).NE.3 | |
41507 | & .AND.CUT.LT.0.25D0) PARJ(153)=PARJ(153)+ | |
41508 | & (33D0-2D0*MSTU(112))/12D0*LOG(PARJ(169))*ALSPI*PARJ(152) | |
41509 | ||
41510 | C...Parametrization of second order four-jet cross-section. | |
41511 | IF(IABS(MSTJ(101)).LE.1.OR.CUT.GE.0.125D0) THEN | |
41512 | PARJ(154)=0D0 | |
41513 | ELSE | |
41514 | CT=LOG(1D0/CUT-5D0) | |
41515 | IF(CUT.LE.0.018D0) THEN | |
41516 | XQQGG=6.349D0-4.330D0*CT+0.8304D0*CT**2 | |
41517 | IF(MSTJ(109).EQ.2) XQQGG=(4D0/3D0)**2*(3.035D0-2.091D0*CT+ | |
41518 | & 0.4059D0*CT**2) | |
41519 | XQQQQ=1.25D0*(-0.1080D0+0.01486D0*CT+0.009364D0*CT**2) | |
41520 | IF(MSTJ(109).EQ.2) XQQQQ=8D0*XQQQQ | |
41521 | ELSE | |
41522 | XQQGG=-0.09773D0+0.2959D0*CT-0.2764D0*CT**2+0.08832D0*CT**3 | |
41523 | IF(MSTJ(109).EQ.2) XQQGG=(4D0/3D0)**2*(-0.04079D0+ | |
41524 | & 0.1340D0*CT-0.1326D0*CT**2+0.04365D0*CT**3) | |
41525 | XQQQQ=1.25D0*(0.003661D0-0.004888D0*CT-0.001081D0*CT**2+ | |
41526 | & 0.002093D0*CT**3) | |
41527 | IF(MSTJ(109).EQ.2) XQQQQ=8D0*XQQQQ | |
41528 | ENDIF | |
41529 | PARJ(154)=ALSPI**2*CT**2*(XQQGG+XQQQQ)/RQCD | |
41530 | PARJ(155)=XQQQQ/(XQQGG+XQQQQ) | |
41531 | ENDIF | |
41532 | ||
41533 | C...If negative three-jet rate, change y' optimization parameter. | |
41534 | IF(MSTJ(111).EQ.1.AND.PARJ(152)+PARJ(153).LT.0D0.AND. | |
41535 | & PARJ(169).LT.0.99D0) THEN | |
41536 | PARJ(169)=MIN(1D0,1.2D0*PARJ(169)) | |
41537 | Q2=PARJ(169)*ECM**2 | |
41538 | ALSPI=(3D0/4D0)*CF*PYALPS(Q2)/PARU(1) | |
41539 | GOTO 100 | |
41540 | ENDIF | |
41541 | ||
41542 | C...If too high cross-section, use harder cuts, or fail. | |
41543 | IF(PARJ(152)+PARJ(153)+PARJ(154).GE.1) THEN | |
41544 | IF(MSTJ(110).EQ.2.AND.CUT.GT.0.0499D0.AND.MSTJ(111).EQ.1.AND. | |
41545 | & PARJ(169).LT.0.99D0) THEN | |
41546 | PARJ(169)=MIN(1D0,1.2D0*PARJ(169)) | |
41547 | Q2=PARJ(169)*ECM**2 | |
41548 | ALSPI=(3D0/4D0)*CF*PYALPS(Q2)/PARU(1) | |
41549 | GOTO 100 | |
41550 | ELSEIF(MSTJ(110).EQ.2.AND.CUT.GT.0.0499D0) THEN | |
41551 | CALL PYERRM(26, | |
41552 | & '(PYXJET:) no allowed y cut value for Zhu parametrization') | |
41553 | ENDIF | |
41554 | CUT=0.26D0*(4D0*CUT)**(PARJ(152)+PARJ(153)+ | |
41555 | & PARJ(154))**(-1D0/3D0) | |
41556 | IF(MSTJ(110).EQ.2) CUT=MAX(0.01D0,MIN(0.05D0,CUT)) | |
41557 | GOTO 100 | |
41558 | ENDIF | |
41559 | ||
41560 | C...Scalar gluon (first order only). | |
41561 | ELSE | |
41562 | ALSPI=PYALPS(ECM**2)/PARU(1) | |
41563 | CUT=MAX(0.001D0,PARJ(125),(PARJ(126)/ECM)**2,EXP(-3D0/ALSPI)) | |
41564 | PARJ(152)=0D0 | |
41565 | IF(CUT.LT.0.25D0) PARJ(152)=(ALSPI/3D0)*((1D0-2D0*CUT)* | |
41566 | & LOG((1D0-2D0*CUT)/CUT)+0.5D0*(9D0*CUT**2-1D0)) | |
41567 | PARJ(153)=0D0 | |
41568 | PARJ(154)=0D0 | |
41569 | ENDIF | |
41570 | ||
41571 | C...Select number of jets. | |
41572 | PARJ(150)=CUT | |
41573 | IF(MSTJ(101).EQ.0.OR.MSTJ(101).EQ.5) THEN | |
41574 | NJET=2 | |
41575 | ELSEIF(MSTJ(101).LE.0) THEN | |
41576 | NJET=MIN(4,2-MSTJ(101)) | |
41577 | ELSE | |
41578 | RNJ=PYR(0) | |
41579 | NJET=2 | |
41580 | IF(PARJ(152)+PARJ(153)+PARJ(154).GT.RNJ) NJET=3 | |
41581 | IF(PARJ(154).GT.RNJ) NJET=4 | |
41582 | ENDIF | |
41583 | ||
41584 | RETURN | |
41585 | END | |
41586 | ||
41587 | C********************************************************************* | |
41588 | ||
41589 | C...PYX3JT | |
41590 | C...Selects the kinematical variables of three-jet events. | |
41591 | ||
41592 | SUBROUTINE PYX3JT(NJET,CUT,KFL,ECM,X1,X2) | |
41593 | ||
41594 | C...Double precision and integer declarations. | |
41595 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41596 | INTEGER PYK,PYCHGE,PYCOMP | |
41597 | C...Commonblocks. | |
41598 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41599 | SAVE /PYDAT1/ | |
41600 | C...Local array. | |
41601 | DIMENSION ZHUP(5,12) | |
41602 | ||
41603 | C...Coefficients of Zhu second order parametrization. | |
41604 | DATA ((ZHUP(IC1,IC2),IC2=1,12),IC1=1,5)/ | |
41605 | &18.29D0, 89.56D0, 4.541D0, -52.09D0, -109.8D0, 24.90D0, | |
41606 | &11.63D0, 3.683D0, 17.50D0,0.002440D0, -1.362D0,-0.3537D0, | |
41607 | &11.42D0, 6.299D0, -22.55D0, -8.915D0, 59.25D0, -5.855D0, | |
41608 | &-32.85D0, -1.054D0, -16.90D0,0.006489D0,-0.8156D0,0.01095D0, | |
41609 | &7.847D0, -3.964D0, -35.83D0, 1.178D0, 29.39D0, 0.2806D0, | |
41610 | &47.82D0, -12.36D0, -56.72D0, 0.04054D0,-0.4365D0, 0.6062D0, | |
41611 | &5.441D0, -56.89D0, -50.27D0, 15.13D0, 114.3D0, -18.19D0, | |
41612 | &97.05D0, -1.890D0, -139.9D0, 0.08153D0,-0.4984D0, 0.9439D0, | |
41613 | &-17.65D0, 51.44D0, -58.32D0, 70.95D0, -255.7D0, -78.99D0, | |
41614 | &476.9D0, 29.65D0, -239.3D0, 0.4745D0, -1.174D0, 6.081D0/ | |
41615 | ||
41616 | C...Dilogarithm of x for x<0.5 (x>0.5 obtained by analytic trick). | |
41617 | DILOG(X)=X+X**2/4D0+X**3/9D0+X**4/16D0+X**5/25D0+X**6/36D0+ | |
41618 | &X**7/49D0 | |
41619 | ||
41620 | C...Event type. Mass effect factors and other common constants. | |
41621 | MSTJ(120)=2 | |
41622 | MSTJ(121)=0 | |
41623 | PMQ=PYMASS(KFL) | |
41624 | QME=(2D0*PMQ/ECM)**2 | |
41625 | IF(MSTJ(109).NE.1) THEN | |
41626 | CUTL=LOG(CUT) | |
41627 | CUTD=LOG(1D0/CUT-2D0) | |
41628 | IF(MSTJ(109).EQ.0) THEN | |
41629 | CF=4D0/3D0 | |
41630 | CN=3D0 | |
41631 | TR=2D0 | |
41632 | WTMX=MIN(20D0,37D0-6D0*CUTD) | |
41633 | IF(MSTJ(110).EQ.2) WTMX=2D0*(7.5D0+80D0*CUT) | |
41634 | ELSE | |
41635 | CF=1D0 | |
41636 | CN=0D0 | |
41637 | TR=12D0 | |
41638 | WTMX=0D0 | |
41639 | ENDIF | |
41640 | ||
41641 | C...Alpha_strong and effects of optimized Q^2 scale. Maximum weight. | |
41642 | ALS2PI=PARU(118)/PARU(2) | |
41643 | WTOPT=0D0 | |
41644 | IF(MSTJ(111).EQ.1) WTOPT=(33D0-2D0*MSTU(112))/6D0* | |
41645 | & LOG(PARJ(169))*ALS2PI | |
41646 | WTMAX=MAX(0D0,1D0+WTOPT+ALS2PI*WTMX) | |
41647 | ||
41648 | C...Choose three-jet events in allowed region. | |
41649 | 100 NJET=3 | |
41650 | 110 Y13L=CUTL+CUTD*PYR(0) | |
41651 | Y23L=CUTL+CUTD*PYR(0) | |
41652 | Y13=EXP(Y13L) | |
41653 | Y23=EXP(Y23L) | |
41654 | Y12=1D0-Y13-Y23 | |
41655 | IF(Y12.LE.CUT) GOTO 110 | |
41656 | IF(Y13**2+Y23**2+2D0*Y12.LE.2D0*PYR(0)) GOTO 110 | |
41657 | ||
41658 | C...Second order corrections. | |
41659 | IF(MSTJ(101).EQ.2.AND.MSTJ(110).LE.1) THEN | |
41660 | Y12L=LOG(Y12) | |
41661 | Y13M=LOG(1D0-Y13) | |
41662 | Y23M=LOG(1D0-Y23) | |
41663 | Y12M=LOG(1D0-Y12) | |
41664 | IF(Y13.LE.0.5D0) Y13I=DILOG(Y13) | |
41665 | IF(Y13.GE.0.5D0) Y13I=1.644934D0-Y13L*Y13M-DILOG(1D0-Y13) | |
41666 | IF(Y23.LE.0.5D0) Y23I=DILOG(Y23) | |
41667 | IF(Y23.GE.0.5D0) Y23I=1.644934D0-Y23L*Y23M-DILOG(1D0-Y23) | |
41668 | IF(Y12.LE.0.5D0) Y12I=DILOG(Y12) | |
41669 | IF(Y12.GE.0.5D0) Y12I=1.644934D0-Y12L*Y12M-DILOG(1D0-Y12) | |
41670 | WT1=(Y13**2+Y23**2+2D0*Y12)/(Y13*Y23) | |
41671 | WT2=CF*(-2D0*(CUTL-Y12L)**2-3D0*CUTL-1D0+3.289868D0+ | |
41672 | & 2D0*(2D0*CUTL-Y12L)*CUT/Y12)+ | |
41673 | & CN*((CUTL-Y12L)**2-(CUTL-Y13L)**2-(CUTL-Y23L)**2- | |
41674 | & 11D0*CUTL/6D0+67D0/18D0+1.644934D0-(2D0*CUTL-Y12L)*CUT/Y12+ | |
41675 | & (2D0*CUTL-Y13L)*CUT/Y13+(2D0*CUTL-Y23L)*CUT/Y23)+ | |
41676 | & TR*(2D0*CUTL/3D0-10D0/9D0)+ | |
41677 | & CF*(Y12/(Y12+Y13)+Y12/(Y12+Y23)+(Y12+Y23)/Y13+(Y12+Y13)/Y23+ | |
41678 | & Y13L*(4D0*Y12**2+2D0*Y12*Y13+4D0*Y12*Y23+Y13*Y23)/ | |
41679 | & (Y12+Y23)**2+Y23L*(4D0*Y12**2+2D0*Y12*Y23+4D0*Y12*Y13+ | |
41680 | & Y13*Y23)/(Y12+Y13)**2)/WT1+ | |
41681 | & CN*(Y13L*Y13/(Y12+Y23)+Y23L*Y23/(Y12+Y13))/WT1+(CN-2D0*CF)* | |
41682 | & ((Y12**2+(Y12+Y13)**2)*(Y12L*Y23L-Y12L*Y12M-Y23L* | |
41683 | & Y23M+1.644934D0-Y12I-Y23I)/(Y13*Y23)+(Y12**2+(Y12+Y23)**2)* | |
41684 | & (Y12L*Y13L-Y12L*Y12M-Y13L*Y13M+1.644934D0-Y12I-Y13I)/ | |
41685 | & (Y13*Y23)+(Y13**2+Y23**2)/(Y13*Y23*(Y13+Y23))- | |
41686 | & 2D0*Y12L*Y12**2/(Y13+Y23)**2-4D0*Y12L*Y12/(Y13+Y23))/WT1- | |
41687 | & CN*(Y13L*Y23L-Y13L*Y13M-Y23L*Y23M+1.644934D0-Y13I-Y23I) | |
41688 | IF(1D0+WTOPT+ALS2PI*WT2.LE.0D0) MSTJ(121)=1 | |
41689 | IF(1D0+WTOPT+ALS2PI*WT2.LE.WTMAX*PYR(0)) GOTO 110 | |
41690 | PARJ(156)=(WTOPT+ALS2PI*WT2)/(1D0+WTOPT+ALS2PI*WT2) | |
41691 | ||
41692 | ELSEIF(MSTJ(101).EQ.2.AND.MSTJ(110).EQ.2) THEN | |
41693 | C...Second order corrections; Zhu parametrization of ERT. | |
41694 | ZX=(Y23-Y13)**2 | |
41695 | ZY=1D0-Y12 | |
41696 | IZA=0 | |
41697 | DO 120 IY=1,5 | |
41698 | IF(ABS(CUT-0.01D0*IY).LT.0.0001D0) IZA=IY | |
41699 | 120 CONTINUE | |
41700 | IF(IZA.NE.0) THEN | |
41701 | IZ=IZA | |
41702 | WT2=ZHUP(IZ,1)+ZHUP(IZ,2)*ZX+ZHUP(IZ,3)*ZX**2+(ZHUP(IZ,4)+ | |
41703 | & ZHUP(IZ,5)*ZX)*ZY+(ZHUP(IZ,6)+ZHUP(IZ,7)*ZX)*ZY**2+ | |
41704 | & (ZHUP(IZ,8)+ZHUP(IZ,9)*ZX)*ZY**3+ZHUP(IZ,10)/(ZX-ZY**2)+ | |
41705 | & ZHUP(IZ,11)/(1D0-ZY)+ZHUP(IZ,12)/ZY | |
41706 | ELSE | |
41707 | IZ=100D0*CUT | |
41708 | WTL=ZHUP(IZ,1)+ZHUP(IZ,2)*ZX+ZHUP(IZ,3)*ZX**2+(ZHUP(IZ,4)+ | |
41709 | & ZHUP(IZ,5)*ZX)*ZY+(ZHUP(IZ,6)+ZHUP(IZ,7)*ZX)*ZY**2+ | |
41710 | & (ZHUP(IZ,8)+ZHUP(IZ,9)*ZX)*ZY**3+ZHUP(IZ,10)/(ZX-ZY**2)+ | |
41711 | & ZHUP(IZ,11)/(1D0-ZY)+ZHUP(IZ,12)/ZY | |
41712 | IZ=IZ+1 | |
41713 | WTU=ZHUP(IZ,1)+ZHUP(IZ,2)*ZX+ZHUP(IZ,3)*ZX**2+(ZHUP(IZ,4)+ | |
41714 | & ZHUP(IZ,5)*ZX)*ZY+(ZHUP(IZ,6)+ZHUP(IZ,7)*ZX)*ZY**2+ | |
41715 | & (ZHUP(IZ,8)+ZHUP(IZ,9)*ZX)*ZY**3+ZHUP(IZ,10)/(ZX-ZY**2)+ | |
41716 | & ZHUP(IZ,11)/(1D0-ZY)+ZHUP(IZ,12)/ZY | |
41717 | WT2=WTL+(WTU-WTL)*(100D0*CUT+1D0-IZ) | |
41718 | ENDIF | |
41719 | IF(1D0+WTOPT+2D0*ALS2PI*WT2.LE.0D0) MSTJ(121)=1 | |
41720 | IF(1D0+WTOPT+2D0*ALS2PI*WT2.LE.WTMAX*PYR(0)) GOTO 110 | |
41721 | PARJ(156)=(WTOPT+2D0*ALS2PI*WT2)/(1D0+WTOPT+2D0*ALS2PI*WT2) | |
41722 | ENDIF | |
41723 | ||
41724 | C...Impose mass cuts (gives two jets). For fixed jet number new try. | |
41725 | X1=1D0-Y23 | |
41726 | X2=1D0-Y13 | |
41727 | X3=1D0-Y12 | |
41728 | IF(4D0*Y23*Y13*Y12/X3**2.LE.QME) NJET=2 | |
41729 | IF(MOD(MSTJ(103),4).GE.2.AND.IABS(MSTJ(101)).LE.1.AND.QME*X3+ | |
41730 | & 0.5D0*QME**2+(0.5D0*QME+0.25D0*QME**2)*((1D0-X2)/(1D0-X1)+ | |
41731 | & (1D0-X1)/(1D0-X2)).GT.(X1**2+X2**2)*PYR(0)) NJET=2 | |
41732 | IF(MSTJ(101).EQ.-1.AND.NJET.EQ.2) GOTO 100 | |
41733 | ||
41734 | C...Scalar gluon model (first order only, no mass effects). | |
41735 | ELSE | |
41736 | 130 NJET=3 | |
41737 | 140 X3=SQRT(4D0*CUT**2+PYR(0)*((1D0-CUT)**2-4D0*CUT**2)) | |
41738 | IF(LOG((X3-CUT)/CUT).LE.PYR(0)*LOG((1D0-2D0*CUT)/CUT)) GOTO 140 | |
41739 | YD=SIGN(2D0*CUT*((X3-CUT)/CUT)**PYR(0)-X3,PYR(0)-0.5D0) | |
41740 | X1=1D0-0.5D0*(X3+YD) | |
41741 | X2=1D0-0.5D0*(X3-YD) | |
41742 | IF(4D0*(1D0-X1)*(1D0-X2)*(1D0-X3)/X3**2.LE.QME) NJET=2 | |
41743 | IF(MSTJ(102).GE.2) THEN | |
41744 | IF(X3**2-2D0*(1D0+X3)*(1D0-X1)*(1D0-X2)*PARJ(171).LT. | |
41745 | & X3**2*PYR(0)) NJET=2 | |
41746 | ENDIF | |
41747 | IF(MSTJ(101).EQ.-1.AND.NJET.EQ.2) GOTO 130 | |
41748 | ENDIF | |
41749 | ||
41750 | RETURN | |
41751 | END | |
41752 | ||
41753 | C********************************************************************* | |
41754 | ||
41755 | C...PYX4JT | |
41756 | C...Selects the kinematical variables of four-jet events. | |
41757 | ||
41758 | SUBROUTINE PYX4JT(NJET,CUT,KFL,ECM,KFLN,X1,X2,X4,X12,X14) | |
41759 | ||
41760 | C...Double precision and integer declarations. | |
41761 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41762 | INTEGER PYK,PYCHGE,PYCOMP | |
41763 | C...Commonblocks. | |
41764 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41765 | SAVE /PYDAT1/ | |
41766 | C...Local arrays. | |
41767 | DIMENSION WTA(4),WTB(4),WTC(4),WTD(4),WTE(4) | |
41768 | ||
41769 | C...Common constants. Colour factors for QCD and Abelian gluon theory. | |
41770 | PMQ=PYMASS(KFL) | |
41771 | QME=(2D0*PMQ/ECM)**2 | |
41772 | CT=LOG(1D0/CUT-5D0) | |
41773 | IF(MSTJ(109).EQ.0) THEN | |
41774 | CF=4D0/3D0 | |
41775 | CN=3D0 | |
41776 | TR=2.5D0 | |
41777 | ELSE | |
41778 | CF=1D0 | |
41779 | CN=0D0 | |
41780 | TR=15D0 | |
41781 | ENDIF | |
41782 | ||
41783 | C...Choice of process (qqbargg or qqbarqqbar). | |
41784 | 100 NJET=4 | |
41785 | IT=1 | |
41786 | IF(PARJ(155).GT.PYR(0)) IT=2 | |
41787 | IF(MSTJ(101).LE.-3) IT=-MSTJ(101)-2 | |
41788 | IF(IT.EQ.1) WTMX=0.7D0/CUT**2 | |
41789 | IF(IT.EQ.1.AND.MSTJ(109).EQ.2) WTMX=0.6D0/CUT**2 | |
41790 | IF(IT.EQ.2) WTMX=0.1125D0*CF*TR/CUT**2 | |
41791 | ID=1 | |
41792 | ||
41793 | C...Sample the five kinematical variables (for qqgg preweighted in y34). | |
41794 | 110 Y134=3D0*CUT+(1D0-6D0*CUT)*PYR(0) | |
41795 | Y234=3D0*CUT+(1D0-6D0*CUT)*PYR(0) | |
41796 | IF(IT.EQ.1) Y34=(1D0-5D0*CUT)*EXP(-CT*PYR(0)) | |
41797 | IF(IT.EQ.2) Y34=CUT+(1D0-6D0*CUT)*PYR(0) | |
41798 | IF(Y34.LE.Y134+Y234-1D0.OR.Y34.GE.Y134*Y234) GOTO 110 | |
41799 | VT=PYR(0) | |
41800 | CP=COS(PARU(1)*PYR(0)) | |
41801 | Y14=(Y134-Y34)*VT | |
41802 | Y13=Y134-Y14-Y34 | |
41803 | VB=Y34*(1D0-Y134-Y234+Y34)/((Y134-Y34)*(Y234-Y34)) | |
41804 | Y24=0.5D0*(Y234-Y34)*(1D0-4D0*SQRT(MAX(0D0,VT*(1D0-VT)* | |
41805 | &VB*(1D0-VB)))*CP-(1D0-2D0*VT)*(1D0-2D0*VB)) | |
41806 | Y23=Y234-Y34-Y24 | |
41807 | Y12=1D0-Y134-Y23-Y24 | |
41808 | IF(MIN(Y12,Y13,Y14,Y23,Y24).LE.CUT) GOTO 110 | |
41809 | Y123=Y12+Y13+Y23 | |
41810 | Y124=Y12+Y14+Y24 | |
41811 | ||
41812 | C...Calculate matrix elements for qqgg or qqqq process. | |
41813 | IC=0 | |
41814 | WTTOT=0D0 | |
41815 | 120 IC=IC+1 | |
41816 | IF(IT.EQ.1) THEN | |
41817 | WTA(IC)=(Y12*Y34**2-Y13*Y24*Y34+Y14*Y23*Y34+3D0*Y12*Y23*Y34+ | |
41818 | & 3D0*Y12*Y14*Y34+4D0*Y12**2*Y34-Y13*Y23*Y24+2D0*Y12*Y23*Y24- | |
41819 | & Y13*Y14*Y24-2D0*Y12*Y13*Y24+2D0*Y12**2*Y24+Y14*Y23**2+2D0*Y12* | |
41820 | & Y23**2+Y14**2*Y23+4D0*Y12*Y14*Y23+4D0*Y12**2*Y23+2D0*Y12*Y14**2+ | |
41821 | & 2D0*Y12*Y13*Y14+4D0*Y12**2*Y14+2D0*Y12**2*Y13+2D0*Y12**3)/ | |
41822 | & (2D0*Y13*Y134*Y234*Y24)+(Y24*Y34+Y12*Y34+Y13*Y24- | |
41823 | & Y14*Y23+Y12*Y13)/(Y13*Y134**2)+2D0*Y23*(1D0-Y13)/ | |
41824 | & (Y13*Y134*Y24)+Y34/(2D0*Y13*Y24) | |
41825 | WTB(IC)=(Y12*Y24*Y34+Y12*Y14*Y34-Y13*Y24**2+Y13*Y14*Y24+2D0*Y12* | |
41826 | & Y14*Y24)/(Y13*Y134*Y23*Y14)+Y12*(1D0+Y34)*Y124/(Y134*Y234*Y14* | |
41827 | & Y24)-(2D0*Y13*Y24+Y14**2+Y13*Y23+2D0*Y12*Y13)/(Y13*Y134*Y14)+ | |
41828 | & Y12*Y123*Y124/(2D0*Y13*Y14*Y23*Y24) | |
41829 | WTC(IC)=-(5D0*Y12*Y34**2+2D0*Y12*Y24*Y34+2D0*Y12*Y23*Y34+ | |
41830 | & 2D0*Y12*Y14*Y34+2D0*Y12*Y13*Y34+4D0*Y12**2*Y34-Y13*Y24**2+ | |
41831 | & Y14*Y23*Y24+Y13*Y23*Y24+Y13*Y14*Y24-Y12*Y14*Y24-Y13**2*Y24- | |
41832 | & 3D0*Y12*Y13*Y24-Y14*Y23**2-Y14**2*Y23+Y13*Y14*Y23- | |
41833 | & 3D0*Y12*Y14*Y23-Y12*Y13*Y23)/(4D0*Y134*Y234*Y34**2)+ | |
41834 | & (3D0*Y12*Y34**2-3D0*Y13*Y24*Y34+3D0*Y12*Y24*Y34+ | |
41835 | & 3D0*Y14*Y23*Y34-Y13*Y24**2-Y12*Y23*Y34+6D0*Y12*Y14*Y34+ | |
41836 | & 2D0*Y12*Y13*Y34-2D0*Y12**2*Y34+Y14*Y23*Y24-3D0*Y13*Y23*Y24- | |
41837 | & 2D0*Y13*Y14*Y24+4D0*Y12*Y14*Y24+2D0*Y12*Y13*Y24+ | |
41838 | & 3D0*Y14*Y23**2+2D0*Y14**2*Y23+2D0*Y14**2*Y12+ | |
41839 | & 2D0*Y12**2*Y14+6D0*Y12*Y14*Y23-2D0*Y12*Y13**2- | |
41840 | & 2D0*Y12**2*Y13)/(4D0*Y13*Y134*Y234*Y34) | |
41841 | WTC(IC)=WTC(IC)+(2D0*Y12*Y34**2-2D0*Y13*Y24*Y34+Y12*Y24*Y34+ | |
41842 | & 4D0*Y13*Y23*Y34+4D0*Y12*Y14*Y34+2D0*Y12*Y13*Y34+2D0*Y12**2*Y34- | |
41843 | & Y13*Y24**2+3D0*Y14*Y23*Y24+4D0*Y13*Y23*Y24-2D0*Y13*Y14*Y24+ | |
41844 | & 4D0*Y12*Y14*Y24+2D0*Y12*Y13*Y24+2D0*Y14*Y23**2+4D0*Y13*Y23**2+ | |
41845 | & 2D0*Y13*Y14*Y23+2D0*Y12*Y14*Y23+4D0*Y12*Y13*Y23+2D0*Y12*Y14**2+ | |
41846 | & 4D0*Y12**2*Y13+4D0*Y12*Y13*Y14+2D0*Y12**2*Y14)/ | |
41847 | & (4D0*Y13*Y134*Y24*Y34)-(Y12*Y34**2-2D0*Y14*Y24*Y34- | |
41848 | & 2D0*Y13*Y24*Y34-Y14*Y23*Y34+Y13*Y23*Y34+Y12*Y14*Y34+ | |
41849 | & 2D0*Y12*Y13*Y34-2D0*Y14**2*Y24-4D0*Y13*Y14*Y24- | |
41850 | & 4D0*Y13**2*Y24-Y14**2*Y23-Y13**2*Y23+Y12*Y13*Y14- | |
41851 | & Y12*Y13**2)/(2D0*Y13*Y34*Y134**2)+(Y12*Y34**2- | |
41852 | & 4D0*Y14*Y24*Y34-2D0*Y13*Y24*Y34-2D0*Y14*Y23*Y34- | |
41853 | & 4D0*Y13*Y23*Y34-4D0*Y12*Y14*Y34-4D0*Y12*Y13*Y34- | |
41854 | & 2D0*Y13*Y14*Y24+2D0*Y13**2*Y24+2D0*Y14**2*Y23- | |
41855 | & 2D0*Y13*Y14*Y23-Y12*Y14**2-6D0*Y12*Y13*Y14- | |
41856 | & Y12*Y13**2)/(4D0*Y34**2*Y134**2) | |
41857 | WTTOT=WTTOT+Y34*CF*(CF*WTA(IC)+(CF-0.5D0*CN)*WTB(IC)+ | |
41858 | & CN*WTC(IC))/8D0 | |
41859 | ELSE | |
41860 | WTD(IC)=(Y13*Y23*Y34+Y12*Y23*Y34-Y12**2*Y34+Y13*Y23*Y24+2D0*Y12* | |
41861 | & Y23*Y24-Y14*Y23**2+Y12*Y13*Y24+Y12*Y14*Y23+Y12*Y13*Y14)/(Y13**2* | |
41862 | & Y123**2)-(Y12*Y34**2-Y13*Y24*Y34+Y12*Y24*Y34-Y14*Y23*Y34-Y12* | |
41863 | & Y23*Y34-Y13*Y24**2+Y14*Y23*Y24-Y13*Y23*Y24-Y13**2*Y24+Y14* | |
41864 | & Y23**2)/(Y13**2*Y123*Y134)+(Y13*Y14*Y12+Y34*Y14*Y12-Y34**2*Y12+ | |
41865 | & Y13*Y14*Y24+2D0*Y34*Y14*Y24-Y23*Y14**2+Y34*Y13*Y24+Y34*Y23*Y14+ | |
41866 | & Y34*Y13*Y23)/(Y13**2*Y134**2)-(Y34*Y12**2-Y13*Y24*Y12+Y34*Y24* | |
41867 | & Y12-Y23*Y14*Y12-Y34*Y14*Y12-Y13*Y24**2+Y23*Y14*Y24-Y13*Y14*Y24- | |
41868 | & Y13**2*Y24+Y23*Y14**2)/(Y13**2*Y134*Y123) | |
41869 | WTE(IC)=(Y12*Y34*(Y23-Y24+Y14+Y13)+Y13*Y24**2-Y14*Y23*Y24+Y13* | |
41870 | & Y23*Y24+Y13*Y14*Y24+Y13**2*Y24-Y14*Y23*(Y14+Y23+Y13))/(Y13*Y23* | |
41871 | & Y123*Y134)-Y12*(Y12*Y34-Y23*Y24-Y13*Y24-Y14*Y23-Y14*Y13)/(Y13* | |
41872 | & Y23*Y123**2)-(Y14+Y13)*(Y24+Y23)*Y34/(Y13*Y23*Y134*Y234)+ | |
41873 | & (Y12*Y34*(Y14-Y24+Y23+Y13)+Y13*Y24**2-Y23*Y14*Y24+Y13*Y14*Y24+ | |
41874 | & Y13*Y23*Y24+Y13**2*Y24-Y23*Y14*(Y14+Y23+Y13))/(Y13*Y14*Y134* | |
41875 | & Y123)-Y34*(Y34*Y12-Y14*Y24-Y13*Y24-Y23*Y14-Y23*Y13)/(Y13*Y14* | |
41876 | & Y134**2)-(Y23+Y13)*(Y24+Y14)*Y12/(Y13*Y14*Y123*Y124) | |
41877 | WTTOT=WTTOT+CF*(TR*WTD(IC)+(CF-0.5D0*CN)*WTE(IC))/16D0 | |
41878 | ENDIF | |
41879 | ||
41880 | C...Permutations of momenta in matrix element. Weighting. | |
41881 | 130 IF(IC.EQ.1.OR.IC.EQ.3.OR.ID.EQ.2.OR.ID.EQ.3) THEN | |
41882 | YSAV=Y13 | |
41883 | Y13=Y14 | |
41884 | Y14=YSAV | |
41885 | YSAV=Y23 | |
41886 | Y23=Y24 | |
41887 | Y24=YSAV | |
41888 | YSAV=Y123 | |
41889 | Y123=Y124 | |
41890 | Y124=YSAV | |
41891 | ENDIF | |
41892 | IF(IC.EQ.2.OR.IC.EQ.4.OR.ID.EQ.3.OR.ID.EQ.4) THEN | |
41893 | YSAV=Y13 | |
41894 | Y13=Y23 | |
41895 | Y23=YSAV | |
41896 | YSAV=Y14 | |
41897 | Y14=Y24 | |
41898 | Y24=YSAV | |
41899 | YSAV=Y134 | |
41900 | Y134=Y234 | |
41901 | Y234=YSAV | |
41902 | ENDIF | |
41903 | IF(IC.LE.3) GOTO 120 | |
41904 | IF(ID.EQ.1.AND.WTTOT.LT.PYR(0)*WTMX) GOTO 110 | |
41905 | IC=5 | |
41906 | ||
41907 | C...qqgg events: string configuration and event type. | |
41908 | IF(IT.EQ.1) THEN | |
41909 | IF(MSTJ(109).EQ.0.AND.ID.EQ.1) THEN | |
41910 | PARJ(156)=Y34*(2D0*(WTA(1)+WTA(2)+WTA(3)+WTA(4))+4D0*(WTC(1)+ | |
41911 | & WTC(2)+WTC(3)+WTC(4)))/(9D0*WTTOT) | |
41912 | IF(WTA(2)+WTA(4)+2D0*(WTC(2)+WTC(4)).GT.PYR(0)*(WTA(1)+WTA(2)+ | |
41913 | & WTA(3)+WTA(4)+2D0*(WTC(1)+WTC(2)+WTC(3)+WTC(4)))) ID=2 | |
41914 | IF(ID.EQ.2) GOTO 130 | |
41915 | ELSEIF(MSTJ(109).EQ.2.AND.ID.EQ.1) THEN | |
41916 | PARJ(156)=Y34*(WTA(1)+WTA(2)+WTA(3)+WTA(4))/(8D0*WTTOT) | |
41917 | IF(WTA(2)+WTA(4).GT.PYR(0)*(WTA(1)+WTA(2)+WTA(3)+WTA(4))) ID=2 | |
41918 | IF(ID.EQ.2) GOTO 130 | |
41919 | ENDIF | |
41920 | MSTJ(120)=3 | |
41921 | IF(MSTJ(109).EQ.0.AND.0.5D0*Y34*(WTC(1)+WTC(2)+WTC(3)+ | |
41922 | & WTC(4)).GT.PYR(0)*WTTOT) MSTJ(120)=4 | |
41923 | KFLN=21 | |
41924 | ||
41925 | C...Mass cuts. Kinematical variables out. | |
41926 | IF(Y12.LE.CUT+QME) NJET=2 | |
41927 | IF(NJET.EQ.2) GOTO 150 | |
41928 | Q12=0.5D0*(1D0-SQRT(1D0-QME/Y12)) | |
41929 | X1=1D0-(1D0-Q12)*Y234-Q12*Y134 | |
41930 | X4=1D0-(1D0-Q12)*Y134-Q12*Y234 | |
41931 | X2=1D0-Y124 | |
41932 | X12=(1D0-Q12)*Y13+Q12*Y23 | |
41933 | X14=Y12-0.5D0*QME | |
41934 | IF(Y134*Y234/((1D0-X1)*(1D0-X4)).LE.PYR(0)) NJET=2 | |
41935 | ||
41936 | C...qqbarqqbar events: string configuration, choose new flavour. | |
41937 | ELSE | |
41938 | IF(ID.EQ.1) THEN | |
41939 | WTR=PYR(0)*(WTD(1)+WTD(2)+WTD(3)+WTD(4)) | |
41940 | IF(WTR.LT.WTD(2)+WTD(3)+WTD(4)) ID=2 | |
41941 | IF(WTR.LT.WTD(3)+WTD(4)) ID=3 | |
41942 | IF(WTR.LT.WTD(4)) ID=4 | |
41943 | IF(ID.GE.2) GOTO 130 | |
41944 | ENDIF | |
41945 | MSTJ(120)=5 | |
41946 | PARJ(156)=CF*TR*(WTD(1)+WTD(2)+WTD(3)+WTD(4))/(16D0*WTTOT) | |
41947 | 140 KFLN=1+INT(5D0*PYR(0)) | |
41948 | IF(KFLN.NE.KFL.AND.0.2D0*PARJ(156).LE.PYR(0)) GOTO 140 | |
41949 | IF(KFLN.EQ.KFL.AND.1D0-0.8D0*PARJ(156).LE.PYR(0)) GOTO 140 | |
41950 | IF(KFLN.GT.MSTJ(104)) NJET=2 | |
41951 | PMQN=PYMASS(KFLN) | |
41952 | QMEN=(2D0*PMQN/ECM)**2 | |
41953 | ||
41954 | C...Mass cuts. Kinematical variables out. | |
41955 | IF(Y24.LE.CUT+QME.OR.Y13.LE.1.1D0*QMEN) NJET=2 | |
41956 | IF(NJET.EQ.2) GOTO 150 | |
41957 | Q24=0.5D0*(1D0-SQRT(1D0-QME/Y24)) | |
41958 | Q13=0.5D0*(1D0-SQRT(1D0-QMEN/Y13)) | |
41959 | X1=1D0-(1D0-Q24)*Y123-Q24*Y134 | |
41960 | X4=1D0-(1D0-Q24)*Y134-Q24*Y123 | |
41961 | X2=1D0-(1D0-Q13)*Y234-Q13*Y124 | |
41962 | X12=(1D0-Q24)*((1D0-Q13)*Y14+Q13*Y34)+Q24*((1D0-Q13)*Y12+ | |
41963 | & Q13*Y23) | |
41964 | X14=Y24-0.5D0*QME | |
41965 | X34=(1D0-Q24)*((1D0-Q13)*Y23+Q13*Y12)+Q24*((1D0-Q13)*Y34+ | |
41966 | & Q13*Y14) | |
41967 | IF(PMQ**2+PMQN**2+MIN(X12,X34)*ECM**2.LE. | |
41968 | & (PARJ(127)+PMQ+PMQN)**2) NJET=2 | |
41969 | IF(Y123*Y134/((1D0-X1)*(1D0-X4)).LE.PYR(0)) NJET=2 | |
41970 | ENDIF | |
41971 | 150 IF(MSTJ(101).LE.-2.AND.NJET.EQ.2) GOTO 100 | |
41972 | ||
41973 | RETURN | |
41974 | END | |
41975 | ||
41976 | C********************************************************************* | |
41977 | ||
41978 | C...PYXDIF | |
41979 | C...Gives the angular orientation of events. | |
41980 | ||
41981 | SUBROUTINE PYXDIF(NC,NJET,KFL,ECM,CHI,THE,PHI) | |
41982 | ||
41983 | C...Double precision and integer declarations. | |
41984 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
41985 | INTEGER PYK,PYCHGE,PYCOMP | |
41986 | C...Commonblocks. | |
41987 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
41988 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
41989 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
41990 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
41991 | ||
41992 | C...Charge. Factors depending on polarization for QED case. | |
41993 | QF=KCHG(KFL,1)/3D0 | |
41994 | POLL=1D0-PARJ(131)*PARJ(132) | |
41995 | POLD=PARJ(132)-PARJ(131) | |
41996 | IF(MSTJ(102).LE.1.OR.MSTJ(109).EQ.1) THEN | |
41997 | HF1=POLL | |
41998 | HF2=0D0 | |
41999 | HF3=PARJ(133)**2 | |
42000 | HF4=0D0 | |
42001 | ||
42002 | C...Factors depending on flavour, energy and polarization for QFD case. | |
42003 | ELSE | |
42004 | SFF=1D0/(16D0*PARU(102)*(1D0-PARU(102))) | |
42005 | SFW=ECM**4/((ECM**2-PARJ(123)**2)**2+(PARJ(123)*PARJ(124))**2) | |
42006 | SFI=SFW*(1D0-(PARJ(123)/ECM)**2) | |
42007 | AE=-1D0 | |
42008 | VE=4D0*PARU(102)-1D0 | |
42009 | AF=SIGN(1D0,QF) | |
42010 | VF=AF-4D0*QF*PARU(102) | |
42011 | HF1=QF**2*POLL-2D0*QF*VF*SFI*SFF*(VE*POLL-AE*POLD)+ | |
42012 | & (VF**2+AF**2)*SFW*SFF**2*((VE**2+AE**2)*POLL-2D0*VE*AE*POLD) | |
42013 | HF2=-2D0*QF*AF*SFI*SFF*(AE*POLL-VE*POLD)+2D0*VF*AF*SFW*SFF**2* | |
42014 | & (2D0*VE*AE*POLL-(VE**2+AE**2)*POLD) | |
42015 | HF3=PARJ(133)**2*(QF**2-2D0*QF*VF*SFI*SFF*VE+(VF**2+AF**2)* | |
42016 | & SFW*SFF**2*(VE**2-AE**2)) | |
42017 | HF4=-PARJ(133)**2*2D0*QF*VF*SFW*(PARJ(123)*PARJ(124)/ECM**2)* | |
42018 | & SFF*AE | |
42019 | ENDIF | |
42020 | ||
42021 | C...Mass factor. Differential cross-sections for two-jet events. | |
42022 | SQ2=SQRT(2D0) | |
42023 | QME=0D0 | |
42024 | IF(MSTJ(103).GE.4.AND.IABS(MSTJ(101)).LE.1.AND.MSTJ(102).LE.1.AND. | |
42025 | &MSTJ(109).NE.1) QME=(2D0*PYMASS(KFL)/ECM)**2 | |
42026 | IF(NJET.EQ.2) THEN | |
42027 | SIGU=4D0*SQRT(1D0-QME) | |
42028 | SIGL=2D0*QME*SQRT(1D0-QME) | |
42029 | SIGT=0D0 | |
42030 | SIGI=0D0 | |
42031 | SIGA=0D0 | |
42032 | SIGP=4D0 | |
42033 | ||
42034 | C...Kinematical variables. Reduce four-jet event to three-jet one. | |
42035 | ELSE | |
42036 | IF(NJET.EQ.3) THEN | |
42037 | X1=2D0*P(NC+1,4)/ECM | |
42038 | X2=2D0*P(NC+3,4)/ECM | |
42039 | ELSE | |
42040 | ECMR=P(NC+1,4)+P(NC+4,4)+SQRT((P(NC+2,1)+P(NC+3,1))**2+ | |
42041 | & (P(NC+2,2)+P(NC+3,2))**2+(P(NC+2,3)+P(NC+3,3))**2) | |
42042 | X1=2D0*P(NC+1,4)/ECMR | |
42043 | X2=2D0*P(NC+4,4)/ECMR | |
42044 | ENDIF | |
42045 | ||
42046 | C...Differential cross-sections for three-jet (or reduced four-jet). | |
42047 | XQ=(1D0-X1)/(1D0-X2) | |
42048 | CT12=(X1*X2-2D0*X1-2D0*X2+2D0+QME)/SQRT((X1**2-QME)*(X2**2-QME)) | |
42049 | ST12=SQRT(1D0-CT12**2) | |
42050 | IF(MSTJ(109).NE.1) THEN | |
42051 | SIGU=2D0*X1**2+X2**2*(1D0+CT12**2)-QME*(3D0+CT12**2-X1-X2)- | |
42052 | & QME*X1/XQ+0.5D0*QME*((X2**2-QME)*ST12**2-2D0*X2)*XQ | |
42053 | SIGL=(X2*ST12)**2-QME*(3D0-CT12**2-2.5D0*(X1+X2)+X1*X2+QME)+ | |
42054 | & 0.5D0*QME*(X1**2-X1-QME)/XQ+0.5D0*QME*((X2**2-QME)*CT12**2- | |
42055 | & X2)*XQ | |
42056 | SIGT=0.5D0*(X2**2-QME-0.5D0*QME*(X2**2-QME)/XQ)*ST12**2 | |
42057 | SIGI=((1D0-0.5D0*QME*XQ)*(X2**2-QME)*ST12*CT12+ | |
42058 | & QME*(1D0-X1-X2+0.5D0*X1*X2+0.5D0*QME)*ST12/CT12)/SQ2 | |
42059 | SIGA=X2**2*ST12/SQ2 | |
42060 | SIGP=2D0*(X1**2-X2**2*CT12) | |
42061 | ||
42062 | C...Differential cross-sect for scalar gluons (no mass effects). | |
42063 | ELSE | |
42064 | X3=2D0-X1-X2 | |
42065 | XT=X2*ST12 | |
42066 | CT13=SQRT(MAX(0D0,1D0-(XT/X3)**2)) | |
42067 | SIGU=(1D0-PARJ(171))*(X3**2-0.5D0*XT**2)+ | |
42068 | & PARJ(171)*(X3**2-0.5D0*XT**2-4D0*(1D0-X1)*(1D0-X2)**2/X1) | |
42069 | SIGL=(1D0-PARJ(171))*0.5D0*XT**2+ | |
42070 | & PARJ(171)*0.5D0*(1D0-X1)**2*XT**2 | |
42071 | SIGT=(1D0-PARJ(171))*0.25D0*XT**2+ | |
42072 | & PARJ(171)*0.25D0*XT**2*(1D0-2D0*X1) | |
42073 | SIGI=-(0.5D0/SQ2)*((1D0-PARJ(171))*XT*X3*CT13+ | |
42074 | & PARJ(171)*XT*((1D0-2D0*X1)*X3*CT13-X1*(X1-X2))) | |
42075 | SIGA=(0.25D0/SQ2)*XT*(2D0*(1D0-X1)-X1*X3) | |
42076 | SIGP=X3**2-2D0*(1D0-X1)*(1D0-X2)/X1 | |
42077 | ENDIF | |
42078 | ENDIF | |
42079 | ||
42080 | C...Upper bounds for differential cross-section. | |
42081 | HF1A=ABS(HF1) | |
42082 | HF2A=ABS(HF2) | |
42083 | HF3A=ABS(HF3) | |
42084 | HF4A=ABS(HF4) | |
42085 | SIGMAX=(2D0*HF1A+HF3A+HF4A)*ABS(SIGU)+2D0*(HF1A+HF3A+HF4A)* | |
42086 | &ABS(SIGL)+2D0*(HF1A+2D0*HF3A+2D0*HF4A)*ABS(SIGT)+2D0*SQ2* | |
42087 | &(HF1A+2D0*HF3A+2D0*HF4A)*ABS(SIGI)+4D0*SQ2*HF2A*ABS(SIGA)+ | |
42088 | &2D0*HF2A*ABS(SIGP) | |
42089 | ||
42090 | C...Generate angular orientation according to differential cross-sect. | |
42091 | 100 CHI=PARU(2)*PYR(0) | |
42092 | CTHE=2D0*PYR(0)-1D0 | |
42093 | PHI=PARU(2)*PYR(0) | |
42094 | CCHI=COS(CHI) | |
42095 | SCHI=SIN(CHI) | |
42096 | C2CHI=COS(2D0*CHI) | |
42097 | S2CHI=SIN(2D0*CHI) | |
42098 | THE=ACOS(CTHE) | |
42099 | STHE=SIN(THE) | |
42100 | C2PHI=COS(2D0*(PHI-PARJ(134))) | |
42101 | S2PHI=SIN(2D0*(PHI-PARJ(134))) | |
42102 | SIG=((1D0+CTHE**2)*HF1+STHE**2*(C2PHI*HF3-S2PHI*HF4))*SIGU+ | |
42103 | &2D0*(STHE**2*HF1-STHE**2*(C2PHI*HF3-S2PHI*HF4))*SIGL+ | |
42104 | &2D0*(STHE**2*C2CHI*HF1+((1D0+CTHE**2)*C2CHI*C2PHI-2D0*CTHE*S2CHI* | |
42105 | &S2PHI)*HF3-((1D0+CTHE**2)*C2CHI*S2PHI+2D0*CTHE*S2CHI*C2PHI)*HF4)* | |
42106 | &SIGT-2D0*SQ2*(2D0*STHE*CTHE*CCHI*HF1-2D0*STHE*(CTHE*CCHI*C2PHI- | |
42107 | &SCHI*S2PHI)*HF3+2D0*STHE*(CTHE*CCHI*S2PHI+SCHI*C2PHI)*HF4)*SIGI+ | |
42108 | &4D0*SQ2*STHE*CCHI*HF2*SIGA+2D0*CTHE*HF2*SIGP | |
42109 | IF(SIG.LT.SIGMAX*PYR(0)) GOTO 100 | |
42110 | ||
42111 | RETURN | |
42112 | END | |
42113 | ||
42114 | C********************************************************************* | |
42115 | ||
42116 | C...PYONIA | |
42117 | C...Generates Upsilon and toponium decays into three gluons | |
42118 | C...or two gluons and a photon. | |
42119 | ||
42120 | SUBROUTINE PYONIA(KFL,ECM) | |
42121 | ||
42122 | C...Double precision and integer declarations. | |
42123 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42124 | INTEGER PYK,PYCHGE,PYCOMP | |
42125 | C...Commonblocks. | |
42126 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
42127 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
42128 | COMMON/PYDAT2/KCHG(500,4),PMAS(500,4),PARF(2000),VCKM(4,4) | |
42129 | SAVE /PYJETS/,/PYDAT1/,/PYDAT2/ | |
42130 | ||
42131 | C...Printout. Check input parameters. | |
42132 | IF(MSTU(12).GE.1) CALL PYLIST(0) | |
42133 | IF(KFL.LT.0.OR.KFL.GT.8) THEN | |
42134 | CALL PYERRM(16,'(PYONIA:) called with unknown flavour code') | |
42135 | IF(MSTU(21).GE.1) RETURN | |
42136 | ENDIF | |
42137 | IF(ECM.LT.PARJ(127)+2.02D0*PARF(101)) THEN | |
42138 | CALL PYERRM(16,'(PYONIA:) called with too small CM energy') | |
42139 | IF(MSTU(21).GE.1) RETURN | |
42140 | ENDIF | |
42141 | ||
42142 | C...Initial e+e- and onium state (optional). | |
42143 | NC=0 | |
42144 | IF(MSTJ(115).GE.2) THEN | |
42145 | NC=NC+2 | |
42146 | CALL PY1ENT(NC-1,11,0.5D0*ECM,0D0,0D0) | |
42147 | K(NC-1,1)=21 | |
42148 | CALL PY1ENT(NC,-11,0.5D0*ECM,PARU(1),0D0) | |
42149 | K(NC,1)=21 | |
42150 | ENDIF | |
42151 | KFLC=IABS(KFL) | |
42152 | IF(MSTJ(115).GE.3.AND.KFLC.GE.5) THEN | |
42153 | NC=NC+1 | |
42154 | KF=110*KFLC+3 | |
42155 | MSTU10=MSTU(10) | |
42156 | MSTU(10)=1 | |
42157 | P(NC,5)=ECM | |
42158 | CALL PY1ENT(NC,KF,ECM,0D0,0D0) | |
42159 | K(NC,1)=21 | |
42160 | K(NC,3)=1 | |
42161 | MSTU(10)=MSTU10 | |
42162 | ENDIF | |
42163 | ||
42164 | C...Choose x1 and x2 according to matrix element. | |
42165 | NTRY=0 | |
42166 | 100 X1=PYR(0) | |
42167 | X2=PYR(0) | |
42168 | X3=2D0-X1-X2 | |
42169 | IF(X3.GE.1D0.OR.((1D0-X1)/(X2*X3))**2+((1D0-X2)/(X1*X3))**2+ | |
42170 | &((1D0-X3)/(X1*X2))**2.LE.2D0*PYR(0)) GOTO 100 | |
42171 | NTRY=NTRY+1 | |
42172 | NJET=3 | |
42173 | IF(MSTJ(101).LE.4) CALL PY3ENT(NC+1,21,21,21,ECM,X1,X3) | |
42174 | IF(MSTJ(101).GE.5) CALL PY3ENT(-(NC+1),21,21,21,ECM,X1,X3) | |
42175 | ||
42176 | C...Photon-gluon-gluon events. Small system modifications. Jet origin. | |
42177 | MSTU(111)=MSTJ(108) | |
42178 | IF(MSTJ(108).EQ.2.AND.(MSTJ(101).EQ.0.OR.MSTJ(101).EQ.1)) | |
42179 | &MSTU(111)=1 | |
42180 | PARU(112)=PARJ(121) | |
42181 | IF(MSTU(111).EQ.2) PARU(112)=PARJ(122) | |
42182 | QF=0D0 | |
42183 | IF(KFLC.NE.0) QF=KCHG(KFLC,1)/3D0 | |
42184 | RGAM=7.2D0*QF**2*PARU(101)/PYALPS(ECM**2) | |
42185 | MK=0 | |
42186 | ECMC=ECM | |
42187 | IF(PYR(0).GT.RGAM/(1D0+RGAM)) THEN | |
42188 | IF(1D0-MAX(X1,X2,X3).LE.MAX((PARJ(126)/ECM)**2,PARJ(125))) | |
42189 | & NJET=2 | |
42190 | IF(NJET.EQ.2.AND.MSTJ(101).LE.4) CALL PY2ENT(NC+1,21,21,ECM) | |
42191 | IF(NJET.EQ.2.AND.MSTJ(101).GE.5) CALL PY2ENT(-(NC+1),21,21,ECM) | |
42192 | ELSE | |
42193 | MK=1 | |
42194 | ECMC=SQRT(1D0-X1)*ECM | |
42195 | IF(ECMC.LT.2D0*PARJ(127)) GOTO 100 | |
42196 | K(NC+1,1)=1 | |
42197 | K(NC+1,2)=22 | |
42198 | K(NC+1,4)=0 | |
42199 | K(NC+1,5)=0 | |
42200 | IF(MSTJ(101).GE.5) K(NC+2,4)=MSTU(5)*(NC+3) | |
42201 | IF(MSTJ(101).GE.5) K(NC+2,5)=MSTU(5)*(NC+3) | |
42202 | IF(MSTJ(101).GE.5) K(NC+3,4)=MSTU(5)*(NC+2) | |
42203 | IF(MSTJ(101).GE.5) K(NC+3,5)=MSTU(5)*(NC+2) | |
42204 | NJET=2 | |
42205 | IF(ECMC.LT.4D0*PARJ(127)) THEN | |
42206 | MSTU10=MSTU(10) | |
42207 | MSTU(10)=1 | |
42208 | P(NC+2,5)=ECMC | |
42209 | CALL PY1ENT(NC+2,83,0.5D0*(X2+X3)*ECM,PARU(1),0D0) | |
42210 | MSTU(10)=MSTU10 | |
42211 | NJET=0 | |
42212 | ENDIF | |
42213 | ENDIF | |
42214 | DO 110 IP=NC+1,N | |
42215 | K(IP,3)=K(IP,3)+(MSTJ(115)/2)+(KFLC/5)*(MSTJ(115)/3)*(NC-1) | |
42216 | 110 CONTINUE | |
42217 | ||
42218 | C...Differential cross-sections. Upper limit for cross-section. | |
42219 | IF(MSTJ(106).EQ.1) THEN | |
42220 | SQ2=SQRT(2D0) | |
42221 | HF1=1D0-PARJ(131)*PARJ(132) | |
42222 | HF3=PARJ(133)**2 | |
42223 | CT13=(X1*X3-2D0*X1-2D0*X3+2D0)/(X1*X3) | |
42224 | ST13=SQRT(1D0-CT13**2) | |
42225 | SIGL=0.5D0*X3**2*((1D0-X2)**2+(1D0-X3)**2)*ST13**2 | |
42226 | SIGU=(X1*(1D0-X1))**2+(X2*(1D0-X2))**2+(X3*(1D0-X3))**2-SIGL | |
42227 | SIGT=0.5D0*SIGL | |
42228 | SIGI=(SIGL*CT13/ST13+0.5D0*X1*X3*(1D0-X2)**2*ST13)/SQ2 | |
42229 | SIGMAX=(2D0*HF1+HF3)*ABS(SIGU)+2D0*(HF1+HF3)*ABS(SIGL)+2D0*(HF1+ | |
42230 | & 2D0*HF3)*ABS(SIGT)+2D0*SQ2*(HF1+2D0*HF3)*ABS(SIGI) | |
42231 | ||
42232 | C...Angular orientation of event. | |
42233 | 120 CHI=PARU(2)*PYR(0) | |
42234 | CTHE=2D0*PYR(0)-1D0 | |
42235 | PHI=PARU(2)*PYR(0) | |
42236 | CCHI=COS(CHI) | |
42237 | SCHI=SIN(CHI) | |
42238 | C2CHI=COS(2D0*CHI) | |
42239 | S2CHI=SIN(2D0*CHI) | |
42240 | THE=ACOS(CTHE) | |
42241 | STHE=SIN(THE) | |
42242 | C2PHI=COS(2D0*(PHI-PARJ(134))) | |
42243 | S2PHI=SIN(2D0*(PHI-PARJ(134))) | |
42244 | SIG=((1D0+CTHE**2)*HF1+STHE**2*C2PHI*HF3)*SIGU+2D0*(STHE**2*HF1- | |
42245 | & STHE**2*C2PHI*HF3)*SIGL+2D0*(STHE**2*C2CHI*HF1+((1D0+CTHE**2)* | |
42246 | & C2CHI*C2PHI-2D0*CTHE*S2CHI*S2PHI)*HF3)*SIGT- | |
42247 | & 2D0*SQ2*(2D0*STHE*CTHE*CCHI*HF1-2D0*STHE* | |
42248 | & (CTHE*CCHI*C2PHI-SCHI*S2PHI)*HF3)*SIGI | |
42249 | IF(SIG.LT.SIGMAX*PYR(0)) GOTO 120 | |
42250 | CALL PYROBO(NC+1,N,0D0,CHI,0D0,0D0,0D0) | |
42251 | CALL PYROBO(NC+1,N,THE,PHI,0D0,0D0,0D0) | |
42252 | ENDIF | |
42253 | ||
42254 | C...Generate parton shower. Rearrange along strings and check. | |
42255 | IF(MSTJ(101).GE.5.AND.NJET.GE.2) THEN | |
42256 | CALL PYSHOW(NC+MK+1,-NJET,ECMC) | |
42257 | MSTJ14=MSTJ(14) | |
42258 | IF(MSTJ(105).EQ.-1) MSTJ(14)=-1 | |
42259 | IF(MSTJ(105).GE.0) MSTU(28)=0 | |
42260 | CALL PYPREP(0) | |
42261 | MSTJ(14)=MSTJ14 | |
42262 | IF(MSTJ(105).GE.0.AND.MSTU(28).NE.0) GOTO 100 | |
42263 | ENDIF | |
42264 | ||
42265 | C...Generate fragmentation. Information for PYTABU: | |
42266 | IF(MSTJ(105).EQ.1) CALL PYEXEC | |
42267 | MSTU(161)=110*KFLC+3 | |
42268 | MSTU(162)=0 | |
42269 | ||
42270 | RETURN | |
42271 | END | |
42272 | ||
42273 | C********************************************************************* | |
42274 | ||
42275 | C...PYBOOK | |
42276 | C...Books a histogram. | |
42277 | ||
42278 | SUBROUTINE PYBOOK(ID,TITLE,NX,XL,XU) | |
42279 | ||
42280 | C...Double precision declaration. | |
42281 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42282 | C...Commonblock. | |
42283 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42284 | SAVE /PYBINS/ | |
42285 | C...Local character variables. | |
42286 | CHARACTER TITLE*(*), TITFX*60 | |
42287 | ||
42288 | C...Check that input is sensible. Find initial address in memory. | |
42289 | IF(ID.LE.0.OR.ID.GT.IHIST(1)) CALL PYERRM(28, | |
42290 | &'(PYBOOK:) not allowed histogram number') | |
42291 | IF(NX.LE.0.OR.NX.GT.100) CALL PYERRM(28, | |
42292 | &'(PYBOOK:) not allowed number of bins') | |
42293 | IF(XL.GE.XU) CALL PYERRM(28, | |
42294 | &'(PYBOOK:) x limits in wrong order') | |
42295 | INDX(ID)=IHIST(4) | |
42296 | IHIST(4)=IHIST(4)+28+NX | |
42297 | IF(IHIST(4).GT.IHIST(2)) CALL PYERRM(28, | |
42298 | &'(PYBOOK:) out of histogram space') | |
42299 | IS=INDX(ID) | |
42300 | ||
42301 | C...Store histogram size and reset contents. | |
42302 | BIN(IS+1)=NX | |
42303 | BIN(IS+2)=XL | |
42304 | BIN(IS+3)=XU | |
42305 | BIN(IS+4)=(XU-XL)/NX | |
42306 | CALL PYNULL(ID) | |
42307 | ||
42308 | C...Store title by conversion to integer to double precision. | |
42309 | TITFX=TITLE//' ' | |
42310 | DO 100 IT=1,20 | |
42311 | BIN(IS+8+NX+IT)=256**2*ICHAR(TITFX(3*IT-2:3*IT-2))+ | |
42312 | & 256*ICHAR(TITFX(3*IT-1:3*IT-1))+ICHAR(TITFX(3*IT:3*IT)) | |
42313 | 100 CONTINUE | |
42314 | ||
42315 | RETURN | |
42316 | END | |
42317 | ||
42318 | C********************************************************************* | |
42319 | ||
42320 | C...PYFILL | |
42321 | C...Fills entry in histogram. | |
42322 | ||
42323 | SUBROUTINE PYFILL(ID,X,W) | |
42324 | ||
42325 | C...Double precision declaration. | |
42326 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42327 | C...Commonblock. | |
42328 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42329 | SAVE /PYBINS/ | |
42330 | ||
42331 | C...Find initial address in memory. Increase number of entries. | |
42332 | IF(ID.LE.0.OR.ID.GT.IHIST(1)) CALL PYERRM(28, | |
42333 | &'(PYFILL:) not allowed histogram number') | |
42334 | IS=INDX(ID) | |
42335 | IF(IS.EQ.0) CALL PYERRM(28, | |
42336 | &'(PYFILL:) filling unbooked histogram') | |
42337 | BIN(IS+5)=BIN(IS+5)+1D0 | |
42338 | ||
42339 | C...Find bin in x, including under/overflow, and fill. | |
42340 | IF(X.LT.BIN(IS+2)) THEN | |
42341 | BIN(IS+6)=BIN(IS+6)+W | |
42342 | ELSEIF(X.GE.BIN(IS+3)) THEN | |
42343 | BIN(IS+8)=BIN(IS+8)+W | |
42344 | ELSE | |
42345 | BIN(IS+7)=BIN(IS+7)+W | |
42346 | IX=(X-BIN(IS+2))/BIN(IS+4) | |
42347 | IX=MAX(0,MIN(NINT(BIN(IS+1))-1,IX)) | |
42348 | BIN(IS+9+IX)=BIN(IS+9+IX)+W | |
42349 | ENDIF | |
42350 | ||
42351 | RETURN | |
42352 | END | |
42353 | ||
42354 | C********************************************************************* | |
42355 | ||
42356 | C...PYFACT | |
42357 | C...Multiplies histogram contents by factor. | |
42358 | ||
42359 | SUBROUTINE PYFACT(ID,F) | |
42360 | ||
42361 | C...Double precision declaration. | |
42362 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42363 | C...Commonblock. | |
42364 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42365 | SAVE /PYBINS/ | |
42366 | ||
42367 | C...Find initial address in memory. Multiply all contents bins. | |
42368 | IF(ID.LE.0.OR.ID.GT.IHIST(1)) CALL PYERRM(28, | |
42369 | &'(PYFACT:) not allowed histogram number') | |
42370 | IS=INDX(ID) | |
42371 | IF(IS.EQ.0) CALL PYERRM(28, | |
42372 | &'(PYFACT:) scaling unbooked histogram') | |
42373 | DO 100 IX=IS+6,IS+8+NINT(BIN(IS+1)) | |
42374 | BIN(IX)=F*BIN(IX) | |
42375 | 100 CONTINUE | |
42376 | ||
42377 | RETURN | |
42378 | END | |
42379 | ||
42380 | C********************************************************************* | |
42381 | ||
42382 | C...PYOPER | |
42383 | C...Performs operations between histograms. | |
42384 | ||
42385 | SUBROUTINE PYOPER(ID1,OPER,ID2,ID3,F1,F2) | |
42386 | ||
42387 | C...Double precision declaration. | |
42388 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42389 | C...Commonblock. | |
42390 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42391 | SAVE /PYBINS/ | |
42392 | C...Character variable. | |
42393 | CHARACTER OPER*(*) | |
42394 | ||
42395 | C...Find initial addresses in memory, and histogram size. | |
42396 | IF(ID1.LE.0.OR.ID1.GT.IHIST(1)) CALL PYERRM(28, | |
42397 | &'(PYFACT:) not allowed histogram number') | |
42398 | IS1=INDX(ID1) | |
42399 | IS2=INDX(MIN(IHIST(1),MAX(1,ID2))) | |
42400 | IS3=INDX(MIN(IHIST(1),MAX(1,ID3))) | |
42401 | NX=NINT(BIN(IS3+1)) | |
42402 | IF(OPER.EQ.'M'.AND.ID3.EQ.0) NX=NINT(BIN(IS2+1)) | |
42403 | ||
42404 | C...Update info on number of histogram entries. | |
42405 | IF(OPER.EQ.'+'.OR.OPER.EQ.'-'.OR.OPER.EQ.'*'.OR.OPER.EQ.'/') THEN | |
42406 | BIN(IS3+5)=BIN(IS1+5)+BIN(IS2+5) | |
42407 | ELSEIF(OPER.EQ.'A'.OR.OPER.EQ.'S'.OR.OPER.EQ.'L') THEN | |
42408 | BIN(IS3+5)=BIN(IS1+5) | |
42409 | ENDIF | |
42410 | ||
42411 | C...Operations on pair of histograms: addition, subtraction, | |
42412 | C...multiplication, division. | |
42413 | IF(OPER.EQ.'+') THEN | |
42414 | DO 100 IX=6,8+NX | |
42415 | BIN(IS3+IX)=F1*BIN(IS1+IX)+F2*BIN(IS2+IX) | |
42416 | 100 CONTINUE | |
42417 | ELSEIF(OPER.EQ.'-') THEN | |
42418 | DO 110 IX=6,8+NX | |
42419 | BIN(IS3+IX)=F1*BIN(IS1+IX)-F2*BIN(IS2+IX) | |
42420 | 110 CONTINUE | |
42421 | ELSEIF(OPER.EQ.'*') THEN | |
42422 | DO 120 IX=6,8+NX | |
42423 | BIN(IS3+IX)=F1*BIN(IS1+IX)*F2*BIN(IS2+IX) | |
42424 | 120 CONTINUE | |
42425 | ELSEIF(OPER.EQ.'/') THEN | |
42426 | DO 130 IX=6,8+NX | |
42427 | FA2=F2*BIN(IS2+IX) | |
42428 | IF(ABS(FA2).LE.1D-20) THEN | |
42429 | BIN(IS3+IX)=0D0 | |
42430 | ELSE | |
42431 | BIN(IS3+IX)=F1*BIN(IS1+IX)/FA2 | |
42432 | ENDIF | |
42433 | 130 CONTINUE | |
42434 | ||
42435 | C...Operations on single histogram: multiplication+addition, | |
42436 | C...square root+addition, logarithm+addition. | |
42437 | ELSEIF(OPER.EQ.'A') THEN | |
42438 | DO 140 IX=6,8+NX | |
42439 | BIN(IS3+IX)=F1*BIN(IS1+IX)+F2 | |
42440 | 140 CONTINUE | |
42441 | ELSEIF(OPER.EQ.'S') THEN | |
42442 | DO 150 IX=6,8+NX | |
42443 | BIN(IS3+IX)=F1*SQRT(MAX(0D0,BIN(IS1+IX)))+F2 | |
42444 | 150 CONTINUE | |
42445 | ELSEIF(OPER.EQ.'L') THEN | |
42446 | ZMIN=1D20 | |
42447 | DO 160 IX=9,8+NX | |
42448 | IF(BIN(IS1+IX).LT.ZMIN.AND.BIN(IS1+IX).GT.1D-20) | |
42449 | & ZMIN=0.8D0*BIN(IS1+IX) | |
42450 | 160 CONTINUE | |
42451 | DO 170 IX=6,8+NX | |
42452 | BIN(IS3+IX)=F1*LOG10(MAX(ZMIN,BIN(IS1+IX)))+F2 | |
42453 | 170 CONTINUE | |
42454 | ||
42455 | C...Operation on two or three histograms: average and | |
42456 | C...standard deviation. | |
42457 | ELSEIF(OPER.EQ.'M') THEN | |
42458 | DO 180 IX=6,8+NX | |
42459 | IF(ABS(BIN(IS1+IX)).LE.1D-20) THEN | |
42460 | BIN(IS2+IX)=0D0 | |
42461 | ELSE | |
42462 | BIN(IS2+IX)=BIN(IS2+IX)/BIN(IS1+IX) | |
42463 | ENDIF | |
42464 | IF(ID3.NE.0) THEN | |
42465 | IF(ABS(BIN(IS1+IX)).LE.1D-20) THEN | |
42466 | BIN(IS3+IX)=0D0 | |
42467 | ELSE | |
42468 | BIN(IS3+IX)=SQRT(MAX(0D0,BIN(IS3+IX)/BIN(IS1+IX)- | |
42469 | & BIN(IS2+IX)**2)) | |
42470 | ENDIF | |
42471 | ENDIF | |
42472 | BIN(IS1+IX)=F1*BIN(IS1+IX) | |
42473 | 180 CONTINUE | |
42474 | ENDIF | |
42475 | ||
42476 | RETURN | |
42477 | END | |
42478 | ||
42479 | C********************************************************************* | |
42480 | ||
42481 | C...PYHIST | |
42482 | C...Prints and resets all histograms. | |
42483 | ||
42484 | SUBROUTINE PYHIST | |
42485 | ||
42486 | C...Double precision declaration. | |
42487 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42488 | C...Commonblock. | |
42489 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42490 | SAVE /PYBINS/ | |
42491 | ||
42492 | C...Loop over histograms, print and reset used ones. | |
42493 | DO 100 ID=1,IHIST(1) | |
42494 | IS=INDX(ID) | |
42495 | IF(IS.NE.0.AND.NINT(BIN(IS+5)).GT.0) THEN | |
42496 | CALL PYPLOT(ID) | |
42497 | CALL PYNULL(ID) | |
42498 | ENDIF | |
42499 | 100 CONTINUE | |
42500 | ||
42501 | RETURN | |
42502 | END | |
42503 | ||
42504 | C********************************************************************* | |
42505 | ||
42506 | C...PYPLOT | |
42507 | C...Prints a histogram (but does not reset it). | |
42508 | ||
42509 | SUBROUTINE PYPLOT(ID) | |
42510 | ||
42511 | C...Double precision declaration. | |
42512 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42513 | C...Commonblocks. | |
42514 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
42515 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42516 | SAVE /PYDAT1/,/PYBINS/ | |
42517 | C...Local arrays and character variables. | |
42518 | DIMENSION IDATI(6), IROW(100), IFRA(100), DYAC(10) | |
42519 | CHARACTER TITLE*60, OUT*100, CHA(0:11)*1 | |
42520 | ||
42521 | C...Steps in histogram scale. Character sequence. | |
42522 | DATA DYAC/.04,.05,.06,.08,.10,.12,.15,.20,.25,.30/ | |
42523 | DATA CHA/'0','1','2','3','4','5','6','7','8','9','X','-'/ | |
42524 | ||
42525 | C...Find initial address in memory; skip if empty histogram. | |
42526 | IF(ID.LE.0.OR.ID.GT.IHIST(1)) RETURN | |
42527 | IS=INDX(ID) | |
42528 | IF(IS.EQ.0) RETURN | |
42529 | IF(NINT(BIN(IS+5)).LE.0) THEN | |
42530 | WRITE(MSTU(11),5000) ID | |
42531 | RETURN | |
42532 | ENDIF | |
42533 | ||
42534 | C...Number of histogram lines and x bins. | |
42535 | LIN=IHIST(3)-18 | |
42536 | NX=NINT(BIN(IS+1)) | |
42537 | ||
42538 | C...Extract title by conversion from double precision via integer. | |
42539 | DO 100 IT=1,20 | |
42540 | IEQ=NINT(BIN(IS+8+NX+IT)) | |
42541 | TITLE(3*IT-2:3*IT)=CHAR(IEQ/256**2)//CHAR(MOD(IEQ,256**2)/256) | |
42542 | & //CHAR(MOD(IEQ,256)) | |
42543 | 100 CONTINUE | |
42544 | ||
42545 | C...Find time; print title. | |
42546 | CALL PYTIME(IDATI) | |
42547 | IF(IDATI(1).GT.0) THEN | |
42548 | WRITE(MSTU(11),5100) ID, TITLE, (IDATI(J),J=1,5) | |
42549 | ELSE | |
42550 | WRITE(MSTU(11),5200) ID, TITLE | |
42551 | ENDIF | |
42552 | ||
42553 | C...Find minimum and maximum bin content. | |
42554 | YMIN=BIN(IS+9) | |
42555 | YMAX=BIN(IS+9) | |
42556 | DO 110 IX=IS+10,IS+8+NX | |
42557 | IF(BIN(IX).LT.YMIN) YMIN=BIN(IX) | |
42558 | IF(BIN(IX).GT.YMAX) YMAX=BIN(IX) | |
42559 | 110 CONTINUE | |
42560 | ||
42561 | C...Determine scale and step size for y axis. | |
42562 | IF(YMAX-YMIN.GT.LIN*DYAC(1)*1D-9) THEN | |
42563 | IF(YMIN.GT.0D0.AND.YMIN.LT.0.1D0*YMAX) YMIN=0D0 | |
42564 | IF(YMAX.LT.0D0.AND.YMAX.GT.0.1D0*YMIN) YMAX=0D0 | |
42565 | IPOT=INT(LOG10(YMAX-YMIN)+10D0)-10 | |
42566 | IF(YMAX-YMIN.LT.LIN*DYAC(1)*10D0**IPOT) IPOT=IPOT-1 | |
42567 | IF(YMAX-YMIN.GT.LIN*DYAC(10)*10D0**IPOT) IPOT=IPOT+1 | |
42568 | DELY=DYAC(1) | |
42569 | DO 120 IDEL=1,9 | |
42570 | IF(YMAX-YMIN.GE.LIN*DYAC(IDEL)*10D0**IPOT) DELY=DYAC(IDEL+1) | |
42571 | 120 CONTINUE | |
42572 | DY=DELY*10D0**IPOT | |
42573 | ||
42574 | C...Convert bin contents to integer form; fractional fill in top row. | |
42575 | DO 130 IX=1,NX | |
42576 | CTA=ABS(BIN(IS+8+IX))/DY | |
42577 | IROW(IX)=SIGN(CTA+0.95D0,BIN(IS+8+IX)) | |
42578 | IFRA(IX)=10D0*(CTA+1.05D0-DBLE(INT(CTA+0.95D0))) | |
42579 | 130 CONTINUE | |
42580 | IRMI=SIGN(ABS(YMIN)/DY+0.95D0,YMIN) | |
42581 | IRMA=SIGN(ABS(YMAX)/DY+0.95D0,YMAX) | |
42582 | ||
42583 | C...Print histogram row by row. | |
42584 | DO 150 IR=IRMA,IRMI,-1 | |
42585 | IF(IR.EQ.0) GOTO 150 | |
42586 | OUT=' ' | |
42587 | DO 140 IX=1,NX | |
42588 | IF(IR.EQ.IROW(IX)) OUT(IX:IX)=CHA(IFRA(IX)) | |
42589 | IF(IR*(IROW(IX)-IR).GT.0) OUT(IX:IX)=CHA(10) | |
42590 | 140 CONTINUE | |
42591 | WRITE(MSTU(11),5300) IR*DELY, IPOT, OUT | |
42592 | 150 CONTINUE | |
42593 | ||
42594 | C...Print sign and value of bin contents. | |
42595 | IPOT=INT(LOG10(MAX(YMAX,-YMIN))+10.0001D0)-10 | |
42596 | OUT=' ' | |
42597 | DO 160 IX=1,NX | |
42598 | IF(BIN(IS+8+IX).LT.-10D0**(IPOT-4)) OUT(IX:IX)=CHA(11) | |
42599 | IROW(IX)=NINT(10D0**(3-IPOT)*ABS(BIN(IS+8+IX))) | |
42600 | 160 CONTINUE | |
42601 | WRITE(MSTU(11),5400) OUT | |
42602 | DO 180 IR=4,1,-1 | |
42603 | DO 170 IX=1,NX | |
42604 | OUT(IX:IX)=CHA(MOD(IROW(IX),10**IR)/10**(IR-1)) | |
42605 | 170 CONTINUE | |
42606 | WRITE(MSTU(11),5500) IPOT+IR-4, OUT | |
42607 | 180 CONTINUE | |
42608 | ||
42609 | C...Print sign and value of lower bin edge. | |
42610 | IPOT=INT(LOG10(MAX(-BIN(IS+2),BIN(IS+3)-BIN(IS+4)))+ | |
42611 | & 10.0001D0)-10 | |
42612 | OUT=' ' | |
42613 | DO 190 IX=1,NX | |
42614 | IF(BIN(IS+2)+(IX-1)*BIN(IS+4).LT.-10D0**(IPOT-3)) | |
42615 | & OUT(IX:IX)=CHA(11) | |
42616 | IROW(IX)=NINT(10D0**(2-IPOT)*ABS(BIN(IS+2)+(IX-1)*BIN(IS+4))) | |
42617 | 190 CONTINUE | |
42618 | WRITE(MSTU(11),5600) OUT | |
42619 | DO 210 IR=3,1,-1 | |
42620 | DO 200 IX=1,NX | |
42621 | OUT(IX:IX)=CHA(MOD(IROW(IX),10**IR)/10**(IR-1)) | |
42622 | 200 CONTINUE | |
42623 | WRITE(MSTU(11),5500) IPOT+IR-3, OUT | |
42624 | 210 CONTINUE | |
42625 | ENDIF | |
42626 | ||
42627 | C...Calculate and print statistics. | |
42628 | CSUM=0D0 | |
42629 | CXSUM=0D0 | |
42630 | CXXSUM=0D0 | |
42631 | DO 220 IX=1,NX | |
42632 | CTA=ABS(BIN(IS+8+IX)) | |
42633 | X=BIN(IS+2)+(IX-0.5D0)*BIN(IS+4) | |
42634 | CSUM=CSUM+CTA | |
42635 | CXSUM=CXSUM+CTA*X | |
42636 | CXXSUM=CXXSUM+CTA*X**2 | |
42637 | 220 CONTINUE | |
42638 | XMEAN=CXSUM/MAX(CSUM,1D-20) | |
42639 | XRMS=SQRT(MAX(0D0,CXXSUM/MAX(CSUM,1D-20)-XMEAN**2)) | |
42640 | WRITE(MSTU(11),5700) NINT(BIN(IS+5)),XMEAN,BIN(IS+6), | |
42641 | &BIN(IS+2),BIN(IS+7),XRMS,BIN(IS+8),BIN(IS+3) | |
42642 | ||
42643 | C...Formats for output. | |
42644 | 5000 FORMAT(/5X,'Histogram no',I5,' : no entries') | |
42645 | 5100 FORMAT('1'/5X,'Histogram no',I5,6X,A60,5X,I4,'-',I2,'-',I2,1X, | |
42646 | &I2,':',I2/) | |
42647 | 5200 FORMAT('1'/5X,'Histogram no',I5,6X,A60/) | |
42648 | 5300 FORMAT(2X,F7.2,'*10**',I2,3X,A100) | |
42649 | 5400 FORMAT(/8X,'Contents',3X,A100) | |
42650 | 5500 FORMAT(9X,'*10**',I2,3X,A100) | |
42651 | 5600 FORMAT(/8X,'Low edge',3X,A100) | |
42652 | 5700 FORMAT(/5X,'Entries =',I12,1P,6X,'Mean =',D12.4,6X,'Underflow =' | |
42653 | &,D12.4,6X,'Low edge =',D12.4/5X,'All chan =',D12.4,6X, | |
42654 | &'Rms =',D12.4,6X,'Overflow =',D12.4,6X,'High edge =',D12.4) | |
42655 | ||
42656 | RETURN | |
42657 | END | |
42658 | ||
42659 | C********************************************************************* | |
42660 | ||
42661 | C...PYNULL | |
42662 | C...Resets bin contents of a histogram. | |
42663 | ||
42664 | SUBROUTINE PYNULL(ID) | |
42665 | ||
42666 | C...Double precision declaration. | |
42667 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42668 | C...Commonblock. | |
42669 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42670 | SAVE /PYBINS/ | |
42671 | ||
42672 | IF(ID.LE.0.OR.ID.GT.IHIST(1)) RETURN | |
42673 | IS=INDX(ID) | |
42674 | IF(IS.EQ.0) RETURN | |
42675 | DO 100 IX=IS+5,IS+8+NINT(BIN(IS+1)) | |
42676 | BIN(IX)=0D0 | |
42677 | 100 CONTINUE | |
42678 | ||
42679 | RETURN | |
42680 | END | |
42681 | ||
42682 | C********************************************************************* | |
42683 | ||
42684 | C...PYDUMP | |
42685 | C...Dumps histogram contents on file for reading by other program. | |
42686 | C...Can also read back own dump. | |
42687 | ||
42688 | SUBROUTINE PYDUMP(MDUMP,LFN,NHI,IHI) | |
42689 | ||
42690 | C...Double precision declaration. | |
42691 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42692 | C...Commonblock. | |
42693 | COMMON/PYBINS/IHIST(4),INDX(1000),BIN(20000) | |
42694 | SAVE /PYBINS/ | |
42695 | C...Local arrays and character variables. | |
42696 | DIMENSION IHI(*),ISS(100),VAL(5) | |
42697 | CHARACTER TITLE*60,FORMAT*13 | |
42698 | ||
42699 | C...Dump all histograms that have been booked, | |
42700 | C...including titles and ranges, one after the other. | |
42701 | IF(MDUMP.EQ.1) THEN | |
42702 | ||
42703 | C...Loop over histograms and find which are wanted and booked. | |
42704 | IF(NHI.LE.0) THEN | |
42705 | NW=IHIST(1) | |
42706 | ELSE | |
42707 | NW=NHI | |
42708 | ENDIF | |
42709 | DO 130 IW=1,NW | |
42710 | IF(NHI.EQ.0) THEN | |
42711 | ID=IW | |
42712 | ELSE | |
42713 | ID=IHI(IW) | |
42714 | ENDIF | |
42715 | IS=INDX(ID) | |
42716 | IF(IS.NE.0) THEN | |
42717 | ||
42718 | C...Write title, histogram size, filling statistics. | |
42719 | NX=NINT(BIN(IS+1)) | |
42720 | DO 100 IT=1,20 | |
42721 | IEQ=NINT(BIN(IS+8+NX+IT)) | |
42722 | TITLE(3*IT-2:3*IT)=CHAR(IEQ/256**2)// | |
42723 | & CHAR(MOD(IEQ,256**2)/256)//CHAR(MOD(IEQ,256)) | |
42724 | 100 CONTINUE | |
42725 | WRITE(LFN,5100) ID,TITLE | |
42726 | WRITE(LFN,5200) NX,BIN(IS+2),BIN(IS+3) | |
42727 | WRITE(LFN,5300) NINT(BIN(IS+5)),BIN(IS+6),BIN(IS+7), | |
42728 | & BIN(IS+8) | |
42729 | ||
42730 | ||
42731 | C...Write histogram contents, in groups of five. | |
42732 | DO 120 IXG=1,(NX+4)/5 | |
42733 | DO 110 IXV=1,5 | |
42734 | IX=5*IXG+IXV-5 | |
42735 | IF(IX.LE.NX) THEN | |
42736 | VAL(IXV)=BIN(IS+8+IX) | |
42737 | ELSE | |
42738 | VAL(IXV)=0D0 | |
42739 | ENDIF | |
42740 | 110 CONTINUE | |
42741 | WRITE(LFN,5400) (VAL(IXV),IXV=1,5) | |
42742 | 120 CONTINUE | |
42743 | ||
42744 | C...Go to next histogram; finish. | |
42745 | ELSEIF(NHI.GT.0) THEN | |
42746 | CALL PYERRM(8,'(PYDUMP:) unknown histogram number') | |
42747 | ENDIF | |
42748 | 130 CONTINUE | |
42749 | ||
42750 | C...Read back in histograms dumped MDUMP=1. | |
42751 | ELSEIF(MDUMP.EQ.2) THEN | |
42752 | ||
42753 | C...Read histogram number, title and range, and book. | |
42754 | 140 READ(LFN,5100,END=170) ID,TITLE | |
42755 | READ(LFN,5200) NX,XL,XU | |
42756 | CALL PYBOOK(ID,TITLE,NX,XL,XU) | |
42757 | IS=INDX(ID) | |
42758 | ||
42759 | C...Read filling statistics. | |
42760 | READ(LFN,5300) NENTRY,BIN(IS+6),BIN(IS+7),BIN(IS+8) | |
42761 | BIN(IS+5)=DBLE(NENTRY) | |
42762 | ||
42763 | C...Read histogram contents, in groups of five. | |
42764 | DO 160 IXG=1,(NX+4)/5 | |
42765 | READ(LFN,5400) (VAL(IXV),IXV=1,5) | |
42766 | DO 150 IXV=1,5 | |
42767 | IX=5*IXG+IXV-5 | |
42768 | IF(IX.LE.NX) BIN(IS+8+IX)=VAL(IXV) | |
42769 | 150 CONTINUE | |
42770 | 160 CONTINUE | |
42771 | ||
42772 | C...Go to next histogram; finish. | |
42773 | GOTO 140 | |
42774 | 170 CONTINUE | |
42775 | ||
42776 | C...Write histogram contents in column format, | |
42777 | C...convenient e.g. for GNUPLOT input. | |
42778 | ELSEIF(MDUMP.EQ.3) THEN | |
42779 | ||
42780 | C...Find addresses to wanted histograms. | |
42781 | NSS=0 | |
42782 | IF(NHI.LE.0) THEN | |
42783 | NW=IHIST(1) | |
42784 | ELSE | |
42785 | NW=NHI | |
42786 | ENDIF | |
42787 | DO 180 IW=1,NW | |
42788 | IF(NHI.EQ.0) THEN | |
42789 | ID=IW | |
42790 | ELSE | |
42791 | ID=IHI(IW) | |
42792 | ENDIF | |
42793 | IS=INDX(ID) | |
42794 | IF(IS.NE.0.AND.NSS.LT.100) THEN | |
42795 | NSS=NSS+1 | |
42796 | ISS(NSS)=IS | |
42797 | ELSEIF(NSS.GE.100) THEN | |
42798 | CALL PYERRM(8,'(PYDUMP:) too many histograms requested') | |
42799 | ELSEIF(NHI.GT.0) THEN | |
42800 | CALL PYERRM(8,'(PYDUMP:) unknown histogram number') | |
42801 | ENDIF | |
42802 | 180 CONTINUE | |
42803 | ||
42804 | C...Check that they have common number of x bins. Fix format. | |
42805 | NX=NINT(BIN(ISS(1)+1)) | |
42806 | DO 190 IW=2,NSS | |
42807 | IF(NINT(BIN(ISS(IW)+1)).NE.NX) THEN | |
42808 | CALL PYERRM(8,'(PYDUMP:) different number of bins') | |
42809 | RETURN | |
42810 | ENDIF | |
42811 | 190 CONTINUE | |
42812 | FORMAT='(1P,000E12.4)' | |
42813 | WRITE(FORMAT(5:7),'(I3)') NSS+1 | |
42814 | ||
42815 | C...Write histogram contents; first column x values. | |
42816 | DO 200 IX=1,NX | |
42817 | X=BIN(ISS(1)+2)+(IX-0.5D0)*BIN(ISS(1)+4) | |
42818 | WRITE(LFN,FORMAT) X, (BIN(ISS(IW)+8+IX),IW=1,NSS) | |
42819 | 200 CONTINUE | |
42820 | ||
42821 | ENDIF | |
42822 | ||
42823 | C...Formats for output. | |
42824 | 5100 FORMAT(I5,5X,A60) | |
42825 | 5200 FORMAT(I5,1P,2D12.4) | |
42826 | 5300 FORMAT(I12,1P,3D12.4) | |
42827 | 5400 FORMAT(1P,5D12.4) | |
42828 | ||
42829 | RETURN | |
42830 | END | |
42831 | ||
42832 | C********************************************************************* | |
42833 | ||
42834 | C...PYKCUT | |
42835 | C...Dummy routine, which the user can replace in order to make cuts on | |
42836 | C...the kinematics on the parton level before the matrix elements are | |
42837 | C...evaluated and the event is generated. The cross-section estimates | |
42838 | C...will automatically take these cuts into account, so the given | |
42839 | C...values are for the allowed phase space region only. MCUT=0 means | |
42840 | C...that the event has passed the cuts, MCUT=1 that it has failed. | |
42841 | ||
42842 | SUBROUTINE PYKCUT(MCUT) | |
42843 | ||
42844 | C...Double precision and integer declarations. | |
42845 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42846 | INTEGER PYK,PYCHGE,PYCOMP | |
42847 | C...Commonblocks. | |
42848 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
42849 | COMMON/PYINT1/MINT(400),VINT(400) | |
42850 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
42851 | SAVE /PYDAT1/,/PYINT1/,/PYINT2/ | |
42852 | ||
42853 | C...Set default value (accepting event) for MCUT. | |
42854 | MCUT=0 | |
42855 | ||
42856 | C...Read out subprocess number. | |
42857 | ISUB=MINT(1) | |
42858 | ISTSB=ISET(ISUB) | |
42859 | ||
42860 | C...Read out tau, y*, cos(theta), tau' (where defined, else =0). | |
42861 | TAU=VINT(21) | |
42862 | YST=VINT(22) | |
42863 | CTH=0D0 | |
42864 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) CTH=VINT(23) | |
42865 | TAUP=0D0 | |
42866 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUP=VINT(26) | |
42867 | ||
42868 | C...Calculate x_1, x_2, x_F. | |
42869 | IF(ISTSB.LE.2.OR.ISTSB.GE.5) THEN | |
42870 | X1=SQRT(TAU)*EXP(YST) | |
42871 | X2=SQRT(TAU)*EXP(-YST) | |
42872 | ELSE | |
42873 | X1=SQRT(TAUP)*EXP(YST) | |
42874 | X2=SQRT(TAUP)*EXP(-YST) | |
42875 | ENDIF | |
42876 | XF=X1-X2 | |
42877 | ||
42878 | C...Calculate shat, that, uhat, p_T^2. | |
42879 | SHAT=TAU*VINT(2) | |
42880 | SQM3=VINT(63) | |
42881 | SQM4=VINT(64) | |
42882 | RM3=SQM3/SHAT | |
42883 | RM4=SQM4/SHAT | |
42884 | BE34=SQRT(MAX(0D0,(1D0-RM3-RM4)**2-4D0*RM3*RM4)) | |
42885 | RPTS=4D0*VINT(71)**2/SHAT | |
42886 | BE34L=SQRT(MAX(0D0,(1D0-RM3-RM4)**2-4D0*RM3*RM4-RPTS)) | |
42887 | RM34=2D0*RM3*RM4 | |
42888 | RSQM=1D0+RM34 | |
42889 | RTHM=(4D0*RM3*RM4+RPTS)/(1D0-RM3-RM4+BE34L) | |
42890 | THAT=-0.5D0*SHAT*MAX(RTHM,1D0-RM3-RM4-BE34*CTH) | |
42891 | UHAT=-0.5D0*SHAT*MAX(RTHM,1D0-RM3-RM4+BE34*CTH) | |
42892 | PT2=MAX(VINT(71)**2,0.25D0*SHAT*BE34**2*(1D0-CTH**2)) | |
42893 | ||
42894 | C...Decisions by user to be put here. | |
42895 | ||
42896 | C...Stop program if this routine is ever called. | |
42897 | C...You should not copy these lines to your own routine. | |
42898 | WRITE(MSTU(11),5000) | |
42899 | IF(PYR(0).LT.10D0) STOP | |
42900 | ||
42901 | C...Format for error printout. | |
42902 | 5000 FORMAT(1X,'Error: you did not link your PYKCUT routine ', | |
42903 | &'correctly.'/1X,'Dummy routine in PYTHIA file called instead.'/ | |
42904 | &1X,'Execution stopped!') | |
42905 | ||
42906 | RETURN | |
42907 | END | |
42908 | ||
42909 | C********************************************************************* | |
42910 | ||
42911 | C...PYEVWT | |
42912 | C...Dummy routine, which the user can replace in order to multiply the | |
42913 | C...standard PYTHIA differential cross-section by a process- and | |
42914 | C...kinematics-dependent factor WTXS. For MSTP(142)=1 this corresponds | |
42915 | C...to generation of weighted events, with weight 1/WTXS, while for | |
42916 | C...MSTP(142)=2 it corresponds to a modification of the underlying | |
42917 | C...physics. | |
42918 | ||
42919 | SUBROUTINE PYEVWT(WTXS) | |
42920 | ||
42921 | C...Double precision and integer declarations. | |
42922 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42923 | INTEGER PYK,PYCHGE,PYCOMP | |
42924 | C...Commonblocks. | |
42925 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
42926 | COMMON/PYINT1/MINT(400),VINT(400) | |
42927 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
42928 | SAVE /PYDAT1/,/PYINT1/,/PYINT2/ | |
42929 | ||
42930 | C...Set default weight for WTXS. | |
42931 | WTXS=1D0 | |
42932 | ||
42933 | C...Read out subprocess number. | |
42934 | ISUB=MINT(1) | |
42935 | ISTSB=ISET(ISUB) | |
42936 | ||
42937 | C...Read out tau, y*, cos(theta), tau' (where defined, else =0). | |
42938 | TAU=VINT(21) | |
42939 | YST=VINT(22) | |
42940 | CTH=0D0 | |
42941 | IF(ISTSB.EQ.2.OR.ISTSB.EQ.4) CTH=VINT(23) | |
42942 | TAUP=0D0 | |
42943 | IF(ISTSB.GE.3.AND.ISTSB.LE.5) TAUP=VINT(26) | |
42944 | ||
42945 | C...Read out x_1, x_2, x_F, shat, that, uhat, p_T^2. | |
42946 | X1=VINT(41) | |
42947 | X2=VINT(42) | |
42948 | XF=X1-X2 | |
42949 | SHAT=VINT(44) | |
42950 | THAT=VINT(45) | |
42951 | UHAT=VINT(46) | |
42952 | PT2=VINT(48) | |
42953 | ||
42954 | C...Modifications by user to be put here. | |
42955 | ||
42956 | C...Stop program if this routine is ever called. | |
42957 | C...You should not copy these lines to your own routine. | |
42958 | WRITE(MSTU(11),5000) | |
42959 | IF(PYR(0).LT.10D0) STOP | |
42960 | ||
42961 | C...Format for error printout. | |
42962 | 5000 FORMAT(1X,'Error: you did not link your PYEVWT routine ', | |
42963 | &'correctly.'/1X,'Dummy routine in PYTHIA file called instead.'/ | |
42964 | &1X,'Execution stopped!') | |
42965 | ||
42966 | RETURN | |
42967 | END | |
42968 | ||
42969 | C********************************************************************* | |
42970 | ||
42971 | C...PYUPIN | |
42972 | C...Dummy copy of routine to be called by user to set up a user-defined | |
42973 | C...process. | |
42974 | ||
42975 | SUBROUTINE PYUPIN(ISUB,TITLE,SIGMAX) | |
42976 | ||
42977 | C...Double precision and integer declarations. | |
42978 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
42979 | INTEGER PYK,PYCHGE,PYCOMP | |
42980 | C...Commonblocks. | |
42981 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
42982 | COMMON/PYINT2/ISET(500),KFPR(500,2),COEF(500,20),ICOL(40,4,2) | |
42983 | COMMON/PYINT6/PROC(0:500) | |
42984 | CHARACTER PROC*28 | |
42985 | SAVE /PYDAT1/,/PYINT2/,/PYINT6/ | |
42986 | C...Local character variable. | |
42987 | CHARACTER*(*) TITLE | |
42988 | ||
42989 | C...Check that subprocess number free. | |
42990 | IF(ISUB.LT.1.OR.ISUB.GT.500.OR.ISET(ISUB).GE.0) THEN | |
42991 | WRITE(MSTU(11),5000) ISUB | |
42992 | STOP | |
42993 | ENDIF | |
42994 | ||
42995 | C...Fill information on new process. | |
42996 | ISET(ISUB)=11 | |
42997 | COEF(ISUB,1)=SIGMAX | |
42998 | PROC(ISUB)=TITLE//' ' | |
42999 | ||
43000 | C...Format for error output. | |
43001 | 5000 FORMAT(1X,'Error: user-defined subprocess code ',I4, | |
43002 | &' not allowed.'//1X,'Execution stopped!') | |
43003 | ||
43004 | RETURN | |
43005 | END | |
43006 | ||
43007 | C********************************************************************* | |
43008 | ||
43009 | C...PYUPEV | |
43010 | C...Dummy routine, to be replaced by user. When called from PYTHIA | |
43011 | C...the subprocess number ISUB will be given, and PYUPEV is supposed | |
43012 | C...to generate an event of this type, to be stored in the PYUPPR | |
43013 | C...commonblock. SIGEV gives the differential cross-section associated | |
43014 | C...with the event, i.e. the acceptance probability of the event is | |
43015 | C...taken to be SIGEV/SIGMAX, where SIGMAX was given in the PYUPIN | |
43016 | C...call. | |
43017 | ||
43018 | SUBROUTINE PYUPEV(ISUB,SIGEV) | |
43019 | ||
43020 | C...Double precision and integer declarations. | |
43021 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
43022 | INTEGER PYK,PYCHGE,PYCOMP | |
43023 | C...Commonblocks. | |
43024 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
43025 | COMMON/PYUPPR/NUP,KUP(20,7),NFUP,IFUP(10,2),PUP(20,5),Q2UP(0:10) | |
43026 | SAVE /PYDAT1/,/PYUPPR/ | |
43027 | ||
43028 | C...Stop program if this routine is ever called. | |
43029 | C...You should not copy these lines to your own routine. | |
43030 | WRITE(MSTU(11),5000) | |
43031 | IF(PYR(0).LT.10D0) STOP | |
43032 | SIGEV=ISUB | |
43033 | ||
43034 | C...Format for error printout. | |
43035 | 5000 FORMAT(1X,'Error: you did not link your PYUPEV routine ', | |
43036 | &'correctly.'/1X,'Dummy routine in PYTHIA file called instead.'/ | |
43037 | &1X,'Execution stopped!') | |
43038 | ||
43039 | RETURN | |
43040 | END | |
43041 | ||
43042 | C********************************************************************* | |
43043 | ||
43044 | C...PYTAUD | |
43045 | C...Dummy routine, to be replaced by user, to handle the decay of a | |
43046 | C...polarized tau lepton. | |
43047 | C...Input: | |
43048 | C...ITAU is the position where the decaying tau is stored in /PYJETS/. | |
43049 | C...IORIG is the position where the mother of the tau is stored; | |
43050 | C... is 0 when the mother is not stored. | |
43051 | C...KFORIG is the flavour of the mother of the tau; | |
43052 | C... is 0 when the mother is not known. | |
43053 | C...Note that IORIG=0 does not necessarily imply KFORIG=0; | |
43054 | C... e.g. in B hadron semileptonic decays the W propagator | |
43055 | C... is not explicitly stored but the W code is still unambiguous. | |
43056 | C...Output: | |
43057 | C...NDECAY is the number of decay products in the current tau decay. | |
43058 | C...These decay products should be added to the /PYJETS/ common block, | |
43059 | C...in positions N+1 through N+NDECAY. For each product I you must | |
43060 | C...give the flavour codes K(I,2) and the five-momenta P(I,1), P(I,2), | |
43061 | C...P(I,3), P(I,4) and P(I,5). The rest will be stored automatically. | |
43062 | ||
43063 | SUBROUTINE PYTAUD(ITAU,IORIG,KFORIG,NDECAY) | |
43064 | ||
43065 | C...Double precision and integer declarations. | |
43066 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
43067 | INTEGER PYK,PYCHGE,PYCOMP | |
43068 | C...Commonblocks. | |
43069 | COMMON/PYJETS/N,NPAD,K(4000,5),P(4000,5),V(4000,5) | |
43070 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) | |
43071 | SAVE /PYJETS/,/PYDAT1/ | |
43072 | ||
43073 | C...Stop program if this routine is ever called. | |
43074 | C...You should not copy these lines to your own routine. | |
43075 | NDECAY=ITAU+IORIG+KFORIG | |
43076 | WRITE(MSTU(11),5000) | |
43077 | IF(PYR(0).LT.10D0) STOP | |
43078 | ||
43079 | C...Format for error printout. | |
43080 | 5000 FORMAT(1X,'Error: you did not link your PYTAUD routine ', | |
43081 | &'correctly.'/1X,'Dummy routine in PYTHIA file called instead.'/ | |
43082 | &1X,'Execution stopped!') | |
43083 | ||
43084 | RETURN | |
43085 | END | |
43086 | ||
43087 | C********************************************************************* | |
43088 | ||
43089 | C...PYTIME | |
43090 | C...Finds current date and time. | |
43091 | C...Since this task is not standardized in Fortran 77, the routine | |
43092 | C...is dummy, to be replaced by the user. Examples are given for | |
43093 | C...the Fortran 90 routine and DEC Fortran 77, and what to do if | |
43094 | C...you do not have access to suitable routines. | |
43095 | ||
43096 | SUBROUTINE PYTIME(IDATI) | |
43097 | ||
43098 | C...Double precision and integer declarations. | |
43099 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) | |
43100 | INTEGER PYK,PYCHGE,PYCOMP | |
43101 | CHARACTER*8 ATIME | |
43102 | C...Local array. | |
43103 | INTEGER IDATI(6),IDTEMP(3) | |
43104 | ||
43105 | C...Example 0: if you do not have suitable routines. | |
43106 | DO 100 J=1,6 | |
43107 | IDATI(J)=0 | |
43108 | 100 CONTINUE | |
43109 | ||
43110 | C...Example 1: Fortran 90 routine. | |
43111 | C INTEGER IVAL(8) | |
43112 | C CALL DATE_AND_TIME(VALUES=IVAL) | |
43113 | C IDATI(1)=IVAL(1) | |
43114 | C IDATI(2)=IVAL(2) | |
43115 | C IDATI(3)=IVAL(3) | |
43116 | C IDATI(4)=IVAL(5) | |
43117 | C IDATI(5)=IVAL(6) | |
43118 | C IDATI(6)=IVAL(7) | |
43119 | ||
43120 | C...Example 2: DEC Fortran 77. | |
43121 | C CALL IDATE(IMON,IDAY,IYEAR) | |
43122 | C IDATI(1)=1900+IYEAR | |
43123 | C IDATI(2)=IMON | |
43124 | C IDATI(3)=IDAY | |
43125 | C CALL ITIME(IHOUR,IMIN,ISEC) | |
43126 | C IDATI(4)=IHOUR | |
43127 | C IDATI(5)=IMIN | |
43128 | C IDATI(6)=ISEC | |
43129 | ||
43130 | C...Example 3: DEC Fortran | |
43131 | C CALL IDATE(IMON,IDAY,IYEAR) | |
43132 | C IDATI(1)=1900+IYEAR | |
43133 | C IDATI(2)=IMON | |
43134 | C IDATI(3)=IDAY | |
43135 | C CALL TIME(ATIME) | |
43136 | C IHOUR=0 | |
43137 | C IMIN=0 | |
43138 | C ISEC=0 | |
43139 | C READ(ATIME(1:2),'(I2)') IHOUR | |
43140 | C READ(ATIME(4:5),'(I2)') IMIN | |
43141 | C READ(ATIME(7:8),'(I2)') ISEC | |
43142 | C IDATI(4)=IHOUR | |
43143 | C IDATI(5)=IMIN | |
43144 | C IDATI(6)=ISEC | |
43145 | ||
43146 | C...Example 4: GNU LINUX libU77. | |
43147 | C CALL IDATE(IDTEMP) | |
43148 | C IDATI(1)=IDTEMP(3) | |
43149 | C IDATI(2)=IDTEMP(2) | |
43150 | C IDATI(3)=IDTEMP(1) | |
43151 | C CALL ITIME(IDTEMP) | |
43152 | C IDATI(4)=IDTEMP(1) | |
43153 | C IDATI(5)=IDTEMP(2) | |
43154 | C IDATI(6)=IDTEMP(3) | |
43155 | ||
43156 | RETURN | |
43157 | END |