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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
4c039060 | 17 | |
53904666 | 18 | // Library class for particle pt and y distributions used for |
19 | // muon spectrometer simulations. | |
20 | // To be used with AliGenParam. | |
21 | // The following particle typed can be simulated: | |
22 | // pi, K, phi, omega, eta, J/Psi, Upsilon, charm and beauty mesons. | |
23 | // | |
24 | // andreas.morsch@cern.ch | |
25 | // | |
26 | ||
65fb704d | 27 | #include "TMath.h" |
28 | #include "TRandom.h" | |
f9a1ce31 | 29 | #include "TDatabasePDG.h" |
65fb704d | 30 | |
fe4da5cc | 31 | #include "AliGenMUONlib.h" |
5c3fd7ea | 32 | |
fe4da5cc | 33 | ClassImp(AliGenMUONlib) |
34 | // | |
35 | // Pions | |
75e0cc59 | 36 | Double_t AliGenMUONlib::PtPion(const Double_t *px, const Double_t* /*dummy*/) |
fe4da5cc | 37 | { |
38 | // | |
39 | // PT-PARAMETERIZATION CDF, PRL 61(88) 1819 | |
40 | // POWER LAW FOR PT > 500 MEV | |
41 | // MT SCALING BELOW (T=160 MEV) | |
42 | // | |
d90f80fd | 43 | const Double_t kp0 = 1.3; |
44 | const Double_t kxn = 8.28; | |
45 | const Double_t kxlim=0.5; | |
46 | const Double_t kt=0.160; | |
47 | const Double_t kxmpi=0.139; | |
48 | const Double_t kb=1.; | |
fe4da5cc | 49 | Double_t y, y1, xmpi2, ynorm, a; |
50 | Double_t x=*px; | |
51 | // | |
d90f80fd | 52 | y1=TMath::Power(kp0/(kp0+kxlim),kxn); |
53 | xmpi2=kxmpi*kxmpi; | |
54 | ynorm=kb*(TMath::Exp(-sqrt(kxlim*kxlim+xmpi2)/kt)); | |
fe4da5cc | 55 | a=ynorm/y1; |
d90f80fd | 56 | if (x > kxlim) |
57 | y=a*TMath::Power(kp0/(kp0+x),kxn); | |
fe4da5cc | 58 | else |
d90f80fd | 59 | y=kb*TMath::Exp(-sqrt(x*x+xmpi2)/kt); |
fe4da5cc | 60 | return y*x; |
61 | } | |
753690b0 | 62 | // |
63 | // y-distribution | |
64 | // | |
75e0cc59 | 65 | Double_t AliGenMUONlib::YPion( const Double_t *py, const Double_t */*dummy*/) |
753690b0 | 66 | { |
d90f80fd | 67 | // Pion y |
2280e6af | 68 | Double_t y=TMath::Abs(*py); |
69 | /* | |
d90f80fd | 70 | const Double_t ka = 7000.; |
71 | const Double_t kdy = 4.; | |
d90f80fd | 72 | Double_t ex = y*y/(2*kdy*kdy); |
73 | return ka*TMath::Exp(-ex); | |
2280e6af | 74 | */ |
75 | return 1.16526e+04+y*-3.79886e+03+y*y*4.31130e+02; | |
76 | ||
753690b0 | 77 | } |
78 | // particle composition | |
79 | // | |
65fb704d | 80 | Int_t AliGenMUONlib::IpPion(TRandom *ran) |
753690b0 | 81 | { |
d90f80fd | 82 | // Pion composition |
65fb704d | 83 | if (ran->Rndm() < 0.5) { |
753690b0 | 84 | return 211; |
85 | } else { | |
86 | return -211; | |
87 | } | |
88 | } | |
fe4da5cc | 89 | |
90 | //____________________________________________________________ | |
91 | // | |
92 | // Mt-scaling | |
93 | ||
94 | Double_t AliGenMUONlib::PtScal(Double_t pt, Int_t np) | |
95 | { | |
96 | // SCALING EN MASSE PAR RAPPORT A PTPI | |
97 | // MASS PI,K,ETA,RHO,OMEGA,ETA',PHI | |
d90f80fd | 98 | const Double_t khm[10] = {.13957,.493,.5488,.769,.7826,.958,1.02,0,0,0}; |
fe4da5cc | 99 | // VALUE MESON/PI AT 5 GEV |
d90f80fd | 100 | const Double_t kfmax[10]={1.,0.3,0.55,1.0,1.0,1.0,1.0,0,0,0}; |
a4f206bf | 101 | np--; |
d90f80fd | 102 | Double_t f5=TMath::Power(((sqrt(100.018215)+2.)/(sqrt(100.+khm[np]*khm[np])+2.0)),12.3); |
103 | Double_t fmax2=f5/kfmax[np]; | |
fe4da5cc | 104 | // PIONS |
105 | Double_t ptpion=100.*PtPion(&pt, (Double_t*) 0); | |
106 | Double_t fmtscal=TMath::Power(((sqrt(pt*pt+0.018215)+2.)/ | |
d90f80fd | 107 | (sqrt(pt*pt+khm[np]*khm[np])+2.0)),12.3)/ fmax2; |
fe4da5cc | 108 | return fmtscal*ptpion; |
109 | } | |
110 | // | |
753690b0 | 111 | // kaon |
112 | // | |
113 | // pt-distribution | |
114 | //____________________________________________________________ | |
75e0cc59 | 115 | Double_t AliGenMUONlib::PtKaon( const Double_t *px, const Double_t */*dummy*/) |
753690b0 | 116 | { |
d90f80fd | 117 | // Kaon pT |
a4f206bf | 118 | return PtScal(*px,2); |
753690b0 | 119 | } |
120 | ||
121 | // y-distribution | |
fe4da5cc | 122 | //____________________________________________________________ |
75e0cc59 | 123 | Double_t AliGenMUONlib::YKaon( const Double_t *py, const Double_t */*dummy*/) |
fe4da5cc | 124 | { |
d90f80fd | 125 | // Kaon y |
2280e6af | 126 | Double_t y=TMath::Abs(*py); |
127 | /* | |
d90f80fd | 128 | const Double_t ka = 1000.; |
129 | const Double_t kdy = 4.; | |
fe4da5cc | 130 | // |
d90f80fd | 131 | Double_t ex = y*y/(2*kdy*kdy); |
132 | return ka*TMath::Exp(-ex); | |
2280e6af | 133 | */ |
134 | ||
135 | return 1.16526e+04+y*-3.79886e+03+y*y*4.31130e+02; | |
753690b0 | 136 | } |
137 | ||
138 | // particle composition | |
139 | // | |
65fb704d | 140 | Int_t AliGenMUONlib::IpKaon(TRandom *ran) |
753690b0 | 141 | { |
d90f80fd | 142 | // Kaon composition |
65fb704d | 143 | if (ran->Rndm() < 0.5) { |
753690b0 | 144 | return 321; |
145 | } else { | |
146 | return -321; | |
147 | } | |
fe4da5cc | 148 | } |
753690b0 | 149 | |
fe4da5cc | 150 | // J/Psi |
151 | // | |
152 | // | |
153 | // pt-distribution | |
154 | //____________________________________________________________ | |
7455632e | 155 | Double_t AliGenMUONlib::PtJpsiPPdummy(Double_t x, Double_t energy) |
a4f206bf | 156 | { |
157 | // J/Psi pT | |
7455632e | 158 | // pp |
159 | // from the fit of RHIC, CDF & LHC data, see arXiv:1103.2394 | |
a4f206bf | 160 | // |
7455632e | 161 | const Double_t kpt0 = 1.04*TMath::Power(energy,0.101); |
a4f206bf | 162 | const Double_t kxn = 3.9; |
a4f206bf | 163 | // |
7455632e | 164 | Double_t pass1 = 1.+0.363*(x/kpt0)*(x/kpt0); |
a4f206bf | 165 | return x/TMath::Power(pass1,kxn); |
166 | } | |
167 | ||
7455632e | 168 | Double_t AliGenMUONlib::PtJpsiPP7000(const Double_t *px, const Double_t */*dummy*/) |
a4f206bf | 169 | { |
170 | // J/Psi pT | |
7455632e | 171 | // pp 7 TeV |
a4f206bf | 172 | // |
7455632e | 173 | return PtJpsiPPdummy(*px,7000); |
174 | } | |
175 | ||
176 | Double_t AliGenMUONlib::PtJpsiPP2760(const Double_t *px, const Double_t */*dummy*/) | |
177 | { | |
178 | // J/Psi pT | |
a4f206bf | 179 | // pp 2.76 TeV |
7455632e | 180 | // |
181 | return PtJpsiPPdummy(*px,2760); | |
182 | } | |
a4f206bf | 183 | |
7455632e | 184 | Double_t AliGenMUONlib::PtJpsiPP8800(const Double_t *px, const Double_t */*dummy*/) |
185 | { | |
186 | // J/Psi pT | |
187 | // pp 8.8 TeV | |
188 | // | |
189 | return PtJpsiPPdummy(*px,8800); | |
190 | } | |
191 | ||
192 | Double_t AliGenMUONlib::PtJpsiPbPb2760ShFdummy(Double_t x, Int_t n) | |
193 | { | |
194 | // J/Psi shadowing factor vs pT for PbPb min. bias and 11 centr. bins (in 2.5<y<4) | |
195 | // | |
196 | // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.66 in 4pi | |
197 | // S.Grigoryan, details presented at the PWG3-Muon meeting (05.10.2011) | |
198 | // https://indico.cern.ch/conferenceDisplay.py?confId=157367 | |
199 | // | |
200 | const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558, | |
201 | 0.428, 0.317, 0.231, 0.156}; | |
202 | const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224, | |
203 | 0.106, 0.041, 0.013, 0.002}; | |
204 | const Double_t c1[7] = {1.6077e+00, 7.6300e-02,-7.1880e-03, 3.4067e-04, | |
205 | -9.2776e-06,1.5138e-07, 1.4652e-09}; | |
206 | const Double_t c2[7] = {6.2047e-01, 5.7653e-02,-4.1414e-03, 1.0301e-04, | |
207 | 9.6205e-07,-7.4098e-08, 5.0946e-09}; | |
208 | Double_t y1, y2; | |
209 | Int_t j; | |
210 | y1 = c1[j = 6]; y2 = c2[6]; | |
211 | while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];} | |
212 | ||
213 | y1 /= 1.+c1[6]*TMath::Power(x,6); | |
214 | y2 /= 1.+c2[6]*TMath::Power(x,6); | |
215 | // | |
216 | y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n]; | |
217 | if(y1<0) y1=0; | |
218 | return y1; | |
219 | } | |
220 | ||
221 | Double_t AliGenMUONlib::PtJpsiPbPb2760(const Double_t *px, const Double_t *dummy) | |
222 | { | |
223 | // J/Psi pT | |
224 | // PbPb 2.76 TeV, minimum bias 0-100 % | |
225 | // | |
226 | return PtJpsiPbPb2760ShFdummy(*px, 0) * PtJpsiPP2760(px, dummy); | |
a4f206bf | 227 | } |
228 | ||
7455632e | 229 | Double_t AliGenMUONlib::PtJpsiPbPb2760c1(const Double_t *px, const Double_t *dummy) |
a4f206bf | 230 | { |
231 | // J/Psi pT | |
7455632e | 232 | // PbPb 2.76 TeV, 1st centrality bin 0-5 % |
a4f206bf | 233 | // |
7455632e | 234 | return PtJpsiPbPb2760ShFdummy(*px, 1) * PtJpsiPP2760(px, dummy); |
235 | } | |
236 | ||
237 | Double_t AliGenMUONlib::PtJpsiPbPb2760c2(const Double_t *px, const Double_t *dummy) | |
238 | { | |
239 | // J/Psi pT | |
240 | // PbPb 2.76 TeV, 2nd centrality bin 5-10 % | |
a4f206bf | 241 | // |
7455632e | 242 | return PtJpsiPbPb2760ShFdummy(*px, 2) * PtJpsiPP2760(px, dummy); |
243 | } | |
244 | ||
245 | Double_t AliGenMUONlib::PtJpsiPbPb2760c3(const Double_t *px, const Double_t *dummy) | |
246 | { | |
247 | // J/Psi pT | |
248 | // PbPb 2.76 TeV, 3rd centrality bin 10-20 % | |
249 | // | |
250 | return PtJpsiPbPb2760ShFdummy(*px, 3) * PtJpsiPP2760(px, dummy); | |
251 | } | |
252 | ||
253 | Double_t AliGenMUONlib::PtJpsiPbPb2760c4(const Double_t *px, const Double_t *dummy) | |
254 | { | |
255 | // J/Psi pT | |
256 | // PbPb 2.76 TeV, 4th centrality bin 20-30 % | |
257 | // | |
258 | return PtJpsiPbPb2760ShFdummy(*px, 4) * PtJpsiPP2760(px, dummy); | |
259 | } | |
260 | ||
261 | Double_t AliGenMUONlib::PtJpsiPbPb2760c5(const Double_t *px, const Double_t *dummy) | |
262 | { | |
263 | // J/Psi pT | |
264 | // PbPb 2.76 TeV, 5th centrality bin 30-40 % | |
265 | // | |
266 | return PtJpsiPbPb2760ShFdummy(*px, 5) * PtJpsiPP2760(px, dummy); | |
267 | } | |
268 | ||
269 | Double_t AliGenMUONlib::PtJpsiPbPb2760c6(const Double_t *px, const Double_t *dummy) | |
270 | { | |
271 | // J/Psi pT | |
272 | // PbPb 2.76 TeV, 6th centrality bin 40-50 % | |
273 | // | |
274 | return PtJpsiPbPb2760ShFdummy(*px, 6) * PtJpsiPP2760(px, dummy); | |
275 | } | |
276 | ||
277 | Double_t AliGenMUONlib::PtJpsiPbPb2760c7(const Double_t *px, const Double_t *dummy) | |
278 | { | |
279 | // J/Psi pT | |
280 | // PbPb 2.76 TeV, 7th centrality bin 50-60 % | |
281 | // | |
282 | return PtJpsiPbPb2760ShFdummy(*px, 7) * PtJpsiPP2760(px, dummy); | |
283 | } | |
284 | ||
285 | Double_t AliGenMUONlib::PtJpsiPbPb2760c8(const Double_t *px, const Double_t *dummy) | |
286 | { | |
287 | // J/Psi pT | |
288 | // PbPb 2.76 TeV, 8th centrality bin 60-70 % | |
289 | // | |
290 | return PtJpsiPbPb2760ShFdummy(*px, 8) * PtJpsiPP2760(px, dummy); | |
291 | } | |
292 | ||
293 | Double_t AliGenMUONlib::PtJpsiPbPb2760c9(const Double_t *px, const Double_t *dummy) | |
294 | { | |
295 | // J/Psi pT | |
296 | // PbPb 2.76 TeV, 9th centrality bin 70-80 % | |
297 | // | |
298 | return PtJpsiPbPb2760ShFdummy(*px, 9) * PtJpsiPP2760(px, dummy); | |
299 | } | |
300 | ||
301 | Double_t AliGenMUONlib::PtJpsiPbPb2760c10(const Double_t *px, const Double_t *dummy) | |
302 | { | |
303 | // J/Psi pT | |
304 | // PbPb 2.76 TeV, 10th centrality bin 80-90 % | |
305 | // | |
306 | return PtJpsiPbPb2760ShFdummy(*px, 10) * PtJpsiPP2760(px, dummy); | |
307 | } | |
308 | ||
309 | Double_t AliGenMUONlib::PtJpsiPbPb2760c11(const Double_t *px, const Double_t *dummy) | |
310 | { | |
311 | // J/Psi pT | |
312 | // PbPb 2.76 TeV, 11th centrality bin 90-100 % | |
313 | // | |
314 | return PtJpsiPbPb2760ShFdummy(*px, 11) * PtJpsiPP2760(px, dummy); | |
315 | } | |
316 | ||
317 | Double_t AliGenMUONlib::PtJpsiPPb8800ShFdummy(Double_t x, Int_t n) | |
318 | { | |
319 | // J/Psi shadowing factor vs pT for pPb min. bias and 4 centr. bins (in 2.5<y<4) | |
320 | // | |
321 | // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.78 in 4pi | |
322 | // | |
323 | const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23}; | |
324 | const Double_t c[7] = {6.4922e-01, 6.4857e-03, 4.7268e-03,-9.5075e-04, | |
325 | 8.4075e-05,-4.2006e-06, 4.9970e-07}; | |
a4f206bf | 326 | Double_t y; |
327 | Int_t j; | |
7455632e | 328 | y = c[j = 6]; |
a4f206bf | 329 | while (j > 0) y = y * x + c[--j]; |
7455632e | 330 | y /= 1 + c[6]*TMath::Power(x,6); |
a4f206bf | 331 | // |
7455632e | 332 | return 1 + (y-1)*f[n]; |
333 | } | |
334 | ||
335 | Double_t AliGenMUONlib::PtJpsiPPb8800(const Double_t *px, const Double_t *dummy) | |
336 | { | |
337 | // J/Psi pT | |
338 | // pPb 8.8 TeV, minimum bias 0-100 % | |
339 | // | |
340 | return PtJpsiPPb8800ShFdummy(*px, 0) * PtJpsiPP8800(px, dummy); | |
341 | } | |
342 | ||
343 | Double_t AliGenMUONlib::PtJpsiPPb8800c1(const Double_t *px, const Double_t *dummy) | |
344 | { | |
345 | // J/Psi pT | |
346 | // pPb 8.8 TeV, 1st centrality bin 0-20 % | |
347 | // | |
348 | return PtJpsiPPb8800ShFdummy(*px, 1) * PtJpsiPP8800(px, dummy); | |
349 | } | |
350 | ||
351 | Double_t AliGenMUONlib::PtJpsiPPb8800c2(const Double_t *px, const Double_t *dummy) | |
352 | { | |
353 | // J/Psi pT | |
354 | // pPb 8.8 TeV, 2nd centrality bin 20-40 % | |
355 | // | |
356 | return PtJpsiPPb8800ShFdummy(*px, 2) * PtJpsiPP8800(px, dummy); | |
357 | } | |
358 | ||
359 | Double_t AliGenMUONlib::PtJpsiPPb8800c3(const Double_t *px, const Double_t *dummy) | |
360 | { | |
361 | // J/Psi pT | |
362 | // pPb 8.8 TeV, 3rd centrality bin 40-60 % | |
363 | // | |
364 | return PtJpsiPPb8800ShFdummy(*px, 3) * PtJpsiPP8800(px, dummy); | |
365 | } | |
366 | ||
367 | Double_t AliGenMUONlib::PtJpsiPPb8800c4(const Double_t *px, const Double_t *dummy) | |
368 | { | |
369 | // J/Psi pT | |
370 | // pPb 8.8 TeV, 4th centrality bin 60-100 % | |
371 | // | |
372 | return PtJpsiPPb8800ShFdummy(*px, 4) * PtJpsiPP8800(px, dummy); | |
373 | } | |
374 | ||
375 | Double_t AliGenMUONlib::PtJpsiPbP8800ShFdummy(Double_t x, Int_t n) | |
376 | { | |
377 | // J/Psi shadowing factor vs pT for Pbp min. bias and 4 centr. bins (in 2.5<y<4) | |
378 | // | |
379 | // Pbp 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.78 in 4pi | |
380 | // | |
381 | const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23}; | |
382 | const Double_t c[7] = {8.7562e-01, 2.1944e-02, 7.8509e-03,-1.3979e-03, | |
383 | 3.8513e-05, 4.2008e-06, 1.7088e-06}; | |
384 | Double_t y; | |
385 | Int_t j; | |
386 | y = c[j = 6]; | |
387 | while (j > 0) y = y * x + c[--j]; | |
388 | y /= 1 + c[6]*TMath::Power(x,6); | |
389 | // | |
390 | return 1 + (y-1)*f[n]; | |
391 | } | |
392 | ||
393 | Double_t AliGenMUONlib::PtJpsiPbP8800(const Double_t *px, const Double_t *dummy) | |
394 | { | |
395 | // J/Psi pT | |
396 | // Pbp 8.8 TeV, minimum bias 0-100 % | |
397 | // | |
398 | return PtJpsiPbP8800ShFdummy(*px, 0) * PtJpsiPP8800(px, dummy); | |
399 | } | |
400 | ||
401 | Double_t AliGenMUONlib::PtJpsiPbP8800c1(const Double_t *px, const Double_t *dummy) | |
402 | { | |
403 | // J/Psi pT | |
404 | // Pbp 8.8 TeV, 1st centrality bin 0-20 % | |
405 | // | |
406 | return PtJpsiPbP8800ShFdummy(*px, 1) * PtJpsiPP8800(px, dummy); | |
407 | } | |
408 | ||
409 | Double_t AliGenMUONlib::PtJpsiPbP8800c2(const Double_t *px, const Double_t *dummy) | |
410 | { | |
411 | // J/Psi pT | |
412 | // Pbp 8.8 TeV, 2nd centrality bin 20-40 % | |
413 | // | |
414 | return PtJpsiPbP8800ShFdummy(*px, 2) * PtJpsiPP8800(px, dummy); | |
415 | } | |
416 | ||
417 | Double_t AliGenMUONlib::PtJpsiPbP8800c3(const Double_t *px, const Double_t *dummy) | |
418 | { | |
419 | // J/Psi pT | |
420 | // Pbp 8.8 TeV, 3rd centrality bin 40-60 % | |
421 | // | |
422 | return PtJpsiPbP8800ShFdummy(*px, 3) * PtJpsiPP8800(px, dummy); | |
423 | } | |
424 | ||
425 | Double_t AliGenMUONlib::PtJpsiPbP8800c4(const Double_t *px, const Double_t *dummy) | |
426 | { | |
427 | // J/Psi pT | |
428 | // Pbp 8.8 TeV, 4th centrality bin 60-100 % | |
429 | // | |
430 | return PtJpsiPbP8800ShFdummy(*px, 4) * PtJpsiPP8800(px, dummy); | |
a4f206bf | 431 | } |
432 | ||
75e0cc59 | 433 | Double_t AliGenMUONlib::PtJpsi( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 434 | { |
d90f80fd | 435 | // J/Psi pT |
436 | const Double_t kpt0 = 4.; | |
437 | const Double_t kxn = 3.6; | |
fe4da5cc | 438 | Double_t x=*px; |
439 | // | |
d90f80fd | 440 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); |
441 | return x/TMath::Power(pass1,kxn); | |
fe4da5cc | 442 | } |
05932df6 | 443 | |
75e0cc59 | 444 | Double_t AliGenMUONlib::PtJpsiCDFscaled( const Double_t *px, const Double_t */*dummy*/) |
0e137c25 | 445 | { |
446 | // J/Psi pT | |
9e9ae065 | 447 | // |
448 | // PbPb 5.5 TeV | |
449 | // scaled from CDF data at 2 TeV | |
450 | // see S.Grigoryan, PWG3 Meeting, 27th Oct 2008 | |
451 | ||
452 | const Double_t kpt0 = 5.100; | |
453 | const Double_t kxn = 4.102; | |
454 | Double_t x=*px; | |
455 | // | |
456 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
457 | return x/TMath::Power(pass1,kxn); | |
458 | } | |
459 | ||
75e0cc59 | 460 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP( const Double_t *px, const Double_t */*dummy*/) |
9ff13849 | 461 | { |
462 | // J/Psi pT | |
463 | // | |
464 | // pp 14 TeV | |
9ff13849 | 465 | // scaled from CDF data at 2 TeV |
466 | ||
9e9ae065 | 467 | const Double_t kpt0 = 5.630; |
468 | const Double_t kxn = 4.071; | |
469 | Double_t x=*px; | |
470 | // | |
471 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
472 | return x/TMath::Power(pass1,kxn); | |
473 | } | |
474 | ||
75e0cc59 | 475 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 476 | { |
477 | // J/Psi pT | |
478 | // | |
479 | // pp 10 TeV | |
480 | // scaled from CDF data at 2 TeV | |
481 | ||
482 | const Double_t kpt0 = 5.334; | |
483 | const Double_t kxn = 4.071; | |
484 | Double_t x=*px; | |
485 | // | |
486 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
487 | return x/TMath::Power(pass1,kxn); | |
488 | } | |
489 | ||
9fd56238 | 490 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) |
491 | { | |
492 | // J/Psi pT | |
493 | // | |
494 | // pp 8.8 TeV | |
495 | // scaled from CDF data at 2 TeV | |
496 | // | |
497 | const Double_t kpt0 = 5.245; | |
498 | const Double_t kxn = 4.071; | |
499 | Double_t x=*px; | |
500 | // | |
501 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
502 | return x/TMath::Power(pass1,kxn); | |
503 | } | |
504 | ||
505 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) | |
506 | { | |
507 | // J/Psi pT | |
508 | // | |
509 | // pp 7 TeV | |
510 | // scaled from CDF data at 2 TeV | |
511 | ||
512 | const Double_t kpt0 = 5.072; | |
513 | const Double_t kxn = 4.071; | |
514 | Double_t x=*px; | |
515 | // | |
516 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
517 | return x/TMath::Power(pass1,kxn); | |
518 | } | |
519 | ||
520 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) | |
521 | { | |
522 | // J/Psi pT | |
523 | // | |
524 | // pp 3.94 TeV | |
525 | // scaled from CDF data at 2 TeV | |
526 | // | |
527 | const Double_t kpt0 = 4.647; | |
528 | const Double_t kxn = 4.071; | |
529 | Double_t x=*px; | |
530 | // | |
531 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
532 | return x/TMath::Power(pass1,kxn); | |
533 | } | |
534 | ||
a4f206bf | 535 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP3( const Double_t *px, const Double_t */*dummy*/) |
536 | { | |
537 | // J/Psi pT | |
538 | // | |
539 | // pp 2.76 TeV | |
540 | // scaled from CDF data at 1.9 TeV | |
541 | // | |
542 | const Double_t kpt0 = 4.435; | |
543 | const Double_t kxn = 4.071; | |
544 | Double_t x=*px; | |
545 | // | |
546 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
547 | return x/TMath::Power(pass1,kxn); | |
548 | } | |
549 | ||
550 | Double_t AliGenMUONlib::PtJpsiCDFscaledPP2( const Double_t *px, const Double_t */*dummy*/) | |
551 | { | |
552 | // J/Psi pT | |
553 | // | |
7455632e | 554 | // pp 1.96 TeV |
555 | // fit of the CDF data at 1.96 TeV | |
a4f206bf | 556 | // |
557 | const Double_t kpt0 = 4.233; | |
558 | const Double_t kxn = 4.071; | |
559 | Double_t x=*px; | |
560 | // | |
561 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
562 | return x/TMath::Power(pass1,kxn); | |
563 | } | |
564 | ||
9fd56238 | 565 | Double_t AliGenMUONlib::PtJpsiCDFscaledPPb9( const Double_t *px, const Double_t *dummy) |
566 | { | |
567 | // J/Psi pT | |
568 | // | |
7455632e | 569 | // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79 |
9fd56238 | 570 | // |
571 | Double_t c[5] = {6.42774e-01, 1.86168e-02, -6.77296e-04, 8.93512e-06, 1.31586e-07}; | |
572 | Double_t x=*px; | |
573 | Double_t y; | |
574 | Int_t j; | |
575 | y = c[j = 4]; | |
576 | while (j > 0) y = y * x + c[--j]; | |
577 | // | |
578 | Double_t d = 1.+c[4]*TMath::Power(x,4); | |
579 | return y/d * AliGenMUONlib::PtJpsiCDFscaledPP9(px,dummy); | |
580 | } | |
581 | ||
582 | Double_t AliGenMUONlib::PtJpsiCDFscaledPbP9( const Double_t *px, const Double_t *dummy) | |
583 | { | |
584 | // J/Psi pT | |
585 | // | |
7455632e | 586 | // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79 |
9fd56238 | 587 | // |
588 | Double_t c[5] = {8.58557e-01, 5.39791e-02, -4.75180e-03, 2.49463e-04, 5.52396e-05}; | |
589 | Double_t x=*px; | |
590 | Double_t y; | |
591 | Int_t j; | |
592 | y = c[j = 4]; | |
593 | while (j > 0) y = y * x + c[--j]; | |
594 | // | |
595 | Double_t d = 1.+c[4]*TMath::Power(x,4); | |
596 | return y/d * AliGenMUONlib::PtJpsiCDFscaledPP9(px,dummy); | |
597 | } | |
598 | ||
599 | Double_t AliGenMUONlib::PtJpsiCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) | |
600 | { | |
601 | // J/Psi pT | |
602 | // | |
603 | // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.66 | |
604 | // | |
605 | Double_t c[5] = {6.01022e-01, 4.70988e-02, -2.27917e-03, 3.09885e-05, 1.31955e-06}; | |
606 | Double_t x=*px; | |
607 | Double_t y; | |
608 | Int_t j; | |
609 | y = c[j = 4]; | |
610 | while (j > 0) y = y * x + c[--j]; | |
611 | // | |
612 | Double_t d = 1.+c[4]*TMath::Power(x,4); | |
613 | return y/d * AliGenMUONlib::PtJpsiCDFscaledPP4(px,dummy); | |
614 | } | |
615 | ||
75e0cc59 | 616 | Double_t AliGenMUONlib::PtJpsiFlat( const Double_t */*px*/, const Double_t */*dummy*/ ) |
4ca8d070 | 617 | { |
618 | return 1.; | |
619 | } | |
620 | ||
75e0cc59 | 621 | Double_t AliGenMUONlib::PtJpsiPbPb( const Double_t *px, const Double_t */*dummy*/) |
05932df6 | 622 | { |
1af7144e | 623 | // J/Psi pT spectrum |
05932df6 | 624 | // |
625 | // R. Vogt 2002 | |
626 | // PbPb 5.5 TeV | |
627 | // MRST HO | |
628 | // mc = 1.4 GeV, pt-kick 1 GeV | |
629 | // | |
1af7144e | 630 | Float_t x = px[0]; |
631 | Float_t c[8] = { | |
632 | -2.13098e+00, 9.46552e+00, -5.06799e+00, 1.27260e+00, | |
633 | -1.83806e-01, 1.55853e-02, -7.23241e-04, 1.42105e-05 | |
05932df6 | 634 | }; |
1af7144e | 635 | |
3d905dd7 | 636 | Double_t y; |
36349df1 | 637 | if (x < 10.) { |
3d905dd7 | 638 | Int_t j; |
639 | y = c[j = 7]; | |
640 | while (j > 0) y = y * x +c[--j]; | |
641 | y = x * TMath::Exp(y); | |
642 | } else { | |
643 | y = 0.; | |
644 | } | |
1af7144e | 645 | return y; |
05932df6 | 646 | } |
17d28ba5 | 647 | |
75e0cc59 | 648 | Double_t AliGenMUONlib::PtJpsiBPbPb( const Double_t *px, const Double_t */*dummy*/) |
17d28ba5 | 649 | { |
650 | // J/Psi pT spectrum | |
651 | // B -> J/Psi X | |
652 | Double_t x0 = 4.0384; | |
653 | Double_t n = 3.0288; | |
654 | ||
655 | Double_t x = px[0]; | |
656 | Double_t y = x / TMath::Power((1. + (x/x0)*(x/x0)), n); | |
657 | ||
658 | return y; | |
659 | } | |
660 | ||
661 | ||
75e0cc59 | 662 | Double_t AliGenMUONlib::PtJpsiPP( const Double_t *px, const Double_t */*dummy*/) |
bb6e81ac | 663 | { |
664 | // J/Psi pT spectrum | |
665 | // | |
666 | // R. Vogt 2002 | |
667 | // pp 14 TeV | |
668 | // MRST HO | |
669 | // mc = 1.4 GeV, pt-kick 1 GeV | |
670 | // | |
671 | Float_t x = px[0]; | |
672 | Float_t c[4] = {8.47471e+00, -1.93567e+00, 1.50271e-01, -5.51212e-03}; | |
673 | ||
674 | Double_t y; | |
675 | if (x < 10.) { | |
676 | Int_t j; | |
677 | y = c[j = 3]; | |
678 | while (j > 0) y = y * x +c[--j]; | |
679 | y = x * TMath::Exp(y); | |
680 | } else { | |
681 | y = 0.; | |
682 | } | |
683 | return y; | |
684 | } | |
685 | ||
fe4da5cc | 686 | // |
687 | // y-distribution | |
688 | //____________________________________________________________ | |
7455632e | 689 | Double_t AliGenMUONlib::YJpsiPPdummy(Double_t x, Double_t energy) |
a4f206bf | 690 | { |
691 | // J/Psi y | |
7455632e | 692 | // pp |
a4f206bf | 693 | // from the fit of RHIC + LHC data, see arXiv:1103.2394 |
694 | // | |
7455632e | 695 | x = x/TMath::Log(energy/3.097); |
a4f206bf | 696 | x = x*x; |
7455632e | 697 | Double_t y = TMath::Exp(-x/0.4/0.4/2); |
a4f206bf | 698 | if(x > 1) y=0; |
699 | return y; | |
700 | } | |
701 | ||
7455632e | 702 | Double_t AliGenMUONlib::YJpsiPPpoly(Double_t x, Double_t energy) |
a4f206bf | 703 | { |
704 | // J/Psi y | |
7455632e | 705 | // pp |
a4f206bf | 706 | // from the fit of RHIC + LHC data, see arXiv:1103.2394 |
707 | // | |
7455632e | 708 | x = x/TMath::Log(energy/3.097); |
a4f206bf | 709 | x = x*x; |
7455632e | 710 | Double_t y = 1 - 6.9*x*x; |
711 | if(y < 0) y=0; | |
a4f206bf | 712 | return y; |
713 | } | |
714 | ||
7455632e | 715 | Double_t AliGenMUONlib::YJpsiPP7000(const Double_t *px, const Double_t */*dummy*/) |
a4f206bf | 716 | { |
717 | // J/Psi y | |
7455632e | 718 | // pp 7 TeV |
a4f206bf | 719 | // |
7455632e | 720 | return YJpsiPPdummy(*px, 7000); |
721 | } | |
722 | ||
723 | Double_t AliGenMUONlib::YJpsiPP2760(const Double_t *px, const Double_t */*dummy*/) | |
724 | { | |
725 | // J/Psi y | |
726 | // pp 2.76 TeV | |
a4f206bf | 727 | // |
7455632e | 728 | return YJpsiPPdummy(*px, 2760); |
729 | } | |
730 | ||
731 | Double_t AliGenMUONlib::YJpsiPP8800(const Double_t *px, const Double_t */*dummy*/) | |
732 | { | |
733 | // J/Psi y | |
734 | // pp 8.8 TeV | |
735 | // | |
736 | return YJpsiPPdummy(*px, 8800); | |
737 | } | |
738 | ||
739 | Double_t AliGenMUONlib::YJpsiPPpoly7000(const Double_t *px, const Double_t */*dummy*/) | |
740 | { | |
741 | // J/Psi y | |
742 | // pp 7 TeV | |
743 | // | |
744 | return YJpsiPPpoly(*px, 7000); | |
745 | } | |
746 | ||
747 | Double_t AliGenMUONlib::YJpsiPPpoly2760(const Double_t *px, const Double_t */*dummy*/) | |
748 | { | |
749 | // J/Psi y | |
750 | // pp 2.76 TeV | |
751 | // | |
752 | return YJpsiPPpoly(*px, 2760); | |
753 | } | |
754 | ||
755 | Double_t AliGenMUONlib::YJpsiPbPb2760ShFdummy(Double_t x, Int_t n) | |
756 | { | |
757 | // J/Psi shadowing factor vs y for PbPb min. bias and 11 centr. bins | |
758 | // | |
759 | // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.66 in 4pi | |
760 | // | |
761 | const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558, | |
762 | 0.428, 0.317, 0.231, 0.156}; | |
763 | const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224, | |
764 | 0.106, 0.041, 0.013, 0.002}; | |
765 | const Double_t c1[5] = {1.5591e+00, 7.5827e-03, 2.0676e-03,-1.1717e-04, 1.5237e-06}; | |
766 | const Double_t c2[5] = {6.0861e-01, 4.8854e-03, 1.3685e-03,-7.9182e-05, 1.0475e-06}; | |
767 | ||
768 | x = x*x; | |
769 | Double_t y1, y2; | |
770 | Int_t j; | |
771 | y1 = c1[j = 4]; y2 = c2[4]; | |
772 | while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];} | |
773 | ||
774 | y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n]; | |
775 | if(y1<0) y1=0; | |
776 | return y1; | |
777 | } | |
778 | ||
779 | Double_t AliGenMUONlib::YJpsiPbPb2760(const Double_t *px, const Double_t *dummy) | |
780 | { | |
781 | // J/Psi y | |
782 | // PbPb 2.76 TeV, minimum bias 0-100 % | |
783 | // | |
784 | return YJpsiPbPb2760ShFdummy(*px, 0) * YJpsiPP2760(px, dummy); | |
785 | } | |
786 | ||
787 | Double_t AliGenMUONlib::YJpsiPbPb2760c1(const Double_t *px, const Double_t *dummy) | |
788 | { | |
789 | // J/Psi y | |
790 | // PbPb 2.76 TeV, 1st centrality bin 0-5 % | |
791 | // | |
792 | return YJpsiPbPb2760ShFdummy(*px, 1) * YJpsiPP2760(px, dummy); | |
793 | } | |
794 | ||
795 | Double_t AliGenMUONlib::YJpsiPbPb2760c2(const Double_t *px, const Double_t *dummy) | |
796 | { | |
797 | // J/Psi y | |
798 | // PbPb 2.76 TeV, 2nd centrality bin 5-10 % | |
799 | // | |
800 | return YJpsiPbPb2760ShFdummy(*px, 2) * YJpsiPP2760(px, dummy); | |
801 | } | |
802 | ||
803 | Double_t AliGenMUONlib::YJpsiPbPb2760c3(const Double_t *px, const Double_t *dummy) | |
804 | { | |
805 | // J/Psi y | |
806 | // PbPb 2.76 TeV, 3rd centrality bin 10-20 % | |
807 | // | |
808 | return YJpsiPbPb2760ShFdummy(*px, 3) * YJpsiPP2760(px, dummy); | |
809 | } | |
810 | ||
811 | Double_t AliGenMUONlib::YJpsiPbPb2760c4(const Double_t *px, const Double_t *dummy) | |
812 | { | |
813 | // J/Psi y | |
814 | // PbPb 2.76 TeV, 4th centrality bin 20-30 % | |
815 | // | |
816 | return YJpsiPbPb2760ShFdummy(*px, 4) * YJpsiPP2760(px, dummy); | |
817 | } | |
818 | ||
819 | Double_t AliGenMUONlib::YJpsiPbPb2760c5(const Double_t *px, const Double_t *dummy) | |
820 | { | |
821 | // J/Psi y | |
822 | // PbPb 2.76 TeV, 5th centrality bin 30-40 % | |
823 | // | |
824 | return YJpsiPbPb2760ShFdummy(*px, 5) * YJpsiPP2760(px, dummy); | |
825 | } | |
826 | ||
827 | Double_t AliGenMUONlib::YJpsiPbPb2760c6(const Double_t *px, const Double_t *dummy) | |
828 | { | |
829 | // J/Psi y | |
830 | // PbPb 2.76 TeV, 6th centrality bin 40-50 % | |
831 | // | |
832 | return YJpsiPbPb2760ShFdummy(*px, 6) * YJpsiPP2760(px, dummy); | |
833 | } | |
834 | ||
835 | Double_t AliGenMUONlib::YJpsiPbPb2760c7(const Double_t *px, const Double_t *dummy) | |
836 | { | |
837 | // J/Psi y | |
838 | // PbPb 2.76 TeV, 7th centrality bin 50-60 % | |
839 | // | |
840 | return YJpsiPbPb2760ShFdummy(*px, 7) * YJpsiPP2760(px, dummy); | |
841 | } | |
842 | ||
843 | Double_t AliGenMUONlib::YJpsiPbPb2760c8(const Double_t *px, const Double_t *dummy) | |
844 | { | |
845 | // J/Psi y | |
846 | // PbPb 2.76 TeV, 8th centrality bin 60-70 % | |
847 | // | |
848 | return YJpsiPbPb2760ShFdummy(*px, 8) * YJpsiPP2760(px, dummy); | |
849 | } | |
850 | ||
851 | Double_t AliGenMUONlib::YJpsiPbPb2760c9(const Double_t *px, const Double_t *dummy) | |
852 | { | |
853 | // J/Psi y | |
854 | // PbPb 2.76 TeV, 9th centrality bin 70-80 % | |
855 | // | |
856 | return YJpsiPbPb2760ShFdummy(*px, 9) * YJpsiPP2760(px, dummy); | |
857 | } | |
858 | ||
859 | Double_t AliGenMUONlib::YJpsiPbPb2760c10(const Double_t *px, const Double_t *dummy) | |
860 | { | |
861 | // J/Psi y | |
862 | // PbPb 2.76 TeV, 10th centrality bin 80-90 % | |
863 | // | |
864 | return YJpsiPbPb2760ShFdummy(*px, 10) * YJpsiPP2760(px, dummy); | |
865 | } | |
866 | ||
867 | Double_t AliGenMUONlib::YJpsiPbPb2760c11(const Double_t *px, const Double_t *dummy) | |
868 | { | |
869 | // J/Psi y | |
870 | // PbPb 2.76 TeV, 11th centrality bin 90-100 % | |
871 | // | |
872 | return YJpsiPbPb2760ShFdummy(*px, 11) * YJpsiPP2760(px, dummy); | |
873 | } | |
874 | ||
875 | Double_t AliGenMUONlib::YJpsiPP8800dummy(Double_t px) | |
876 | { | |
877 | return AliGenMUONlib::YJpsiPP8800(&px, (Double_t*) 0); | |
878 | } | |
879 | ||
880 | Double_t AliGenMUONlib::YJpsiPPb8800ShFdummy(Double_t x, Int_t n) | |
881 | { | |
882 | // J/Psi shadowing factor vs y for pPb min. bias and 4 centr. bins | |
883 | // | |
884 | // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.78 in 4pi | |
885 | // | |
886 | const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23}; | |
887 | const Double_t c[7] = {7.4372e-01, 2.3299e-02, 2.8678e-03, 1.9595e-03, | |
888 | 3.2849e-04,-4.0547e-05,-7.9732e-06}; | |
a4f206bf | 889 | Double_t y; |
890 | Int_t j; | |
7455632e | 891 | y = c[j = 6]; |
892 | while (j > 0) y = y * x + c[--j]; | |
a4f206bf | 893 | if(y<0) y=0; |
7455632e | 894 | // |
895 | return 1 +(y-1)*f[n]; | |
896 | } | |
897 | ||
898 | Double_t AliGenMUONlib::YJpsiPPb8800(const Double_t *px, const Double_t */*dummy*/) | |
899 | { | |
900 | // J/Psi y | |
901 | // pPb 8.8 TeV, minimum bias 0-100 % | |
902 | // | |
903 | Double_t x = px[0] + 0.47; // rapidity shift | |
904 | return YJpsiPPb8800ShFdummy(x, 0) * YJpsiPP8800dummy(x); | |
905 | } | |
906 | ||
907 | Double_t AliGenMUONlib::YJpsiPPb8800c1(const Double_t *px, const Double_t */*dummy*/) | |
908 | { | |
909 | // J/Psi y | |
910 | // pPb 8.8 TeV, 1st centrality bin 0-20 % | |
911 | // | |
912 | Double_t x = px[0] + 0.47; // rapidity shift | |
913 | return YJpsiPPb8800ShFdummy(x, 1) * YJpsiPP8800dummy(x); | |
914 | } | |
915 | ||
916 | Double_t AliGenMUONlib::YJpsiPPb8800c2(const Double_t *px, const Double_t */*dummy*/) | |
917 | { | |
918 | // J/Psi y | |
919 | // pPb 8.8 TeV, 2nd centrality bin 20-40 % | |
920 | // | |
921 | Double_t x = px[0] + 0.47; // rapidity shift | |
922 | return YJpsiPPb8800ShFdummy(x, 2) * YJpsiPP8800dummy(x); | |
923 | } | |
924 | ||
925 | Double_t AliGenMUONlib::YJpsiPPb8800c3(const Double_t *px, const Double_t */*dummy*/) | |
926 | { | |
927 | // J/Psi y | |
928 | // pPb 8.8 TeV, 3rd centrality bin 40-60 % | |
929 | // | |
930 | Double_t x = px[0] + 0.47; // rapidity shift | |
931 | return YJpsiPPb8800ShFdummy(x, 3) * YJpsiPP8800dummy(x); | |
932 | } | |
933 | ||
934 | Double_t AliGenMUONlib::YJpsiPPb8800c4(const Double_t *px, const Double_t */*dummy*/) | |
935 | { | |
936 | // J/Psi y | |
937 | // pPb 8.8 TeV, 4th centrality bin 60-100 % | |
938 | // | |
939 | Double_t x = px[0] + 0.47; // rapidity shift | |
940 | return YJpsiPPb8800ShFdummy(x, 4) * YJpsiPP8800dummy(x); | |
941 | } | |
a4f206bf | 942 | |
7455632e | 943 | Double_t AliGenMUONlib::YJpsiPbP8800(const Double_t *px, const Double_t */*dummy*/) |
944 | { | |
945 | // J/Psi y | |
946 | // Pbp 8.8 TeV, minimum bias 0-100 % | |
947 | // | |
948 | Double_t x = -px[0] + 0.47; // rapidity shift | |
949 | return YJpsiPPb8800ShFdummy(x, 0) * YJpsiPP8800dummy(x); | |
950 | } | |
951 | ||
952 | Double_t AliGenMUONlib::YJpsiPbP8800c1(const Double_t *px, const Double_t */*dummy*/) | |
953 | { | |
954 | // J/Psi y | |
955 | // Pbp 8.8 TeV, 1st centrality bin 0-20 % | |
956 | // | |
957 | Double_t x = -px[0] + 0.47; // rapidity shift | |
958 | return YJpsiPPb8800ShFdummy(x, 1) * YJpsiPP8800dummy(x); | |
959 | } | |
960 | ||
961 | Double_t AliGenMUONlib::YJpsiPbP8800c2(const Double_t *px, const Double_t */*dummy*/) | |
962 | { | |
963 | // J/Psi y | |
964 | // Pbp 8.8 TeV, 2nd centrality bin 20-40 % | |
965 | // | |
966 | Double_t x = -px[0] + 0.47; // rapidity shift | |
967 | return YJpsiPPb8800ShFdummy(x, 2) * YJpsiPP8800dummy(x); | |
968 | } | |
969 | ||
970 | Double_t AliGenMUONlib::YJpsiPbP8800c3(const Double_t *px, const Double_t */*dummy*/) | |
971 | { | |
972 | // J/Psi y | |
973 | // Pbp 8.8 TeV, 3rd centrality bin 40-60 % | |
974 | // | |
975 | Double_t x = -px[0] + 0.47; // rapidity shift | |
976 | return YJpsiPPb8800ShFdummy(x, 3) * YJpsiPP8800dummy(x); | |
977 | } | |
978 | ||
979 | Double_t AliGenMUONlib::YJpsiPbP8800c4(const Double_t *px, const Double_t */*dummy*/) | |
980 | { | |
981 | // J/Psi y | |
982 | // Pbp 8.8 TeV, 4th centrality bin 60-100 % | |
983 | // | |
984 | Double_t x = -px[0] + 0.47; // rapidity shift | |
985 | return YJpsiPPb8800ShFdummy(x, 4) * YJpsiPP8800dummy(x); | |
a4f206bf | 986 | } |
987 | ||
75e0cc59 | 988 | Double_t AliGenMUONlib::YJpsi(const Double_t *py, const Double_t */*dummy*/) |
fe4da5cc | 989 | { |
d90f80fd | 990 | // J/psi y |
991 | const Double_t ky0 = 4.; | |
992 | const Double_t kb=1.; | |
fe4da5cc | 993 | Double_t yj; |
994 | Double_t y=TMath::Abs(*py); | |
995 | // | |
d90f80fd | 996 | if (y < ky0) |
997 | yj=kb; | |
fe4da5cc | 998 | else |
d90f80fd | 999 | yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); |
fe4da5cc | 1000 | return yj; |
1001 | } | |
05932df6 | 1002 | |
75e0cc59 | 1003 | Double_t AliGenMUONlib::YJpsiFlat( const Double_t */*py*/, const Double_t */*dummy*/ ) |
4ca8d070 | 1004 | { |
1005 | return 1.; | |
1006 | } | |
1007 | ||
05932df6 | 1008 | |
75e0cc59 | 1009 | Double_t AliGenMUONlib::YJpsiPbPb( const Double_t *px, const Double_t */*dummy*/) |
05932df6 | 1010 | { |
1011 | ||
1012 | // | |
1013 | // J/Psi y | |
1014 | // | |
1015 | // | |
1016 | // R. Vogt 2002 | |
1017 | // PbPb 5.5 TeV | |
1018 | // MRST HO | |
1019 | // mc = 1.4 GeV, pt-kick 1 GeV | |
1020 | // | |
1af7144e | 1021 | Double_t c[5] = {-6.03425e+02, 4.98257e+02, -1.38794e+02, 1.62209e+01, -6.85955e-01}; |
1022 | Double_t x = TMath::Abs(px[0]); | |
1023 | Double_t y; | |
1024 | ||
1025 | if (x < 4.) { | |
1026 | y = 31.754; | |
1027 | } else if (x < 6) { | |
1028 | Int_t j; | |
1029 | y = c[j = 4]; | |
1030 | while (j > 0) y = y * x + c[--j]; | |
1031 | } else { | |
1032 | y =0.; | |
1033 | } | |
1034 | ||
1035 | return y; | |
05932df6 | 1036 | } |
1037 | ||
75e0cc59 | 1038 | Double_t AliGenMUONlib::YJpsiCDFscaled( const Double_t *px, const Double_t* dummy) |
0e137c25 | 1039 | { |
1040 | // J/Psi y | |
1041 | return AliGenMUONlib::YJpsiPbPb(px, dummy); | |
1042 | } | |
1043 | ||
75e0cc59 | 1044 | Double_t AliGenMUONlib::YJpsiCDFscaledPP( const Double_t *px, const Double_t* dummy) |
9ff13849 | 1045 | { |
1046 | // J/Psi y | |
1047 | return AliGenMUONlib::YJpsiPP(px, dummy); | |
1048 | } | |
0e137c25 | 1049 | |
75e0cc59 | 1050 | Double_t AliGenMUONlib::YJpsiCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 1051 | { |
9e9ae065 | 1052 | // J/Psi y |
1053 | // | |
1054 | // pp 10 TeV | |
1055 | // scaled from YJpsiPP(14 TeV) using 10 TeV / 14 TeV ratio of y-spectra in LO pQCD. | |
1056 | // see S.Grigoryan, PWG3 Meeting, 27th Oct 2008 | |
1057 | // | |
1058 | ||
1059 | Double_t c[5] = {2.46681e+01, 8.91486e+01, -3.21227e+01, 3.63075e+00, -1.32047e-01}; | |
1060 | ||
1061 | Double_t x = TMath::Abs(px[0]); | |
1062 | Double_t y; | |
1063 | ||
1064 | if (x < 3.2) { | |
1065 | y = 98.523 - 1.3664 * x * x; | |
1066 | } else if (x < 7.5) { | |
1067 | Int_t j; | |
1068 | y = c[j = 4]; | |
1069 | while (j > 0) y = y * x + c[--j]; | |
1070 | } else { | |
1071 | y =0.; | |
1072 | } | |
1073 | ||
1074 | if(y<0) y=0; | |
1075 | ||
1076 | return y; | |
1077 | } | |
1078 | ||
9fd56238 | 1079 | Double_t AliGenMUONlib::YJpsiCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) |
1080 | { | |
1081 | // J/Psi y | |
1082 | // | |
1083 | // pp 8.8 TeV | |
1084 | // rescaling of YJpsiPP(14 TeV) using 8.8 TeV / 14 TeV ratio of y-spectra in LO QCD | |
1085 | // | |
1086 | Double_t c[5] = {3.33882e+02, -1.30980e+02, 2.59082e+01, -3.08935e+00, 1.56375e-01}; | |
1087 | Double_t x = TMath::Abs(px[0]); | |
1088 | Double_t y; | |
1089 | ||
1090 | if (x < 3.7) { | |
1091 | y = 99.236 - 1.5498 * x * x; | |
1092 | } else if (x < 7.4) { | |
1093 | Int_t j; | |
1094 | y = c[j = 4]; | |
1095 | while (j > 0) y = y * x + c[--j]; | |
1096 | } else { | |
1097 | y =0.; | |
1098 | } | |
1099 | ||
1100 | if(y<0) y=0; | |
1101 | ||
1102 | return y; | |
1103 | } | |
1104 | ||
1105 | Double_t AliGenMUONlib::YJpsiCDFscaledPP9dummy(Double_t px) | |
1106 | { | |
1107 | return AliGenMUONlib::YJpsiCDFscaledPP9(&px, (Double_t*) 0); | |
1108 | } | |
1109 | ||
1110 | Double_t AliGenMUONlib::YJpsiCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) | |
1111 | { | |
1112 | // J/Psi y | |
1113 | // | |
1114 | // pp 7 TeV | |
1115 | // scaled from YJpsiPP(14 TeV) using 7 TeV / 14 TeV ratio of y-spectra in LO pQCD. | |
1116 | // | |
1117 | ||
1118 | Double_t c[5] = {6.71181e+02, -3.69240e+02, 8.89644e+01, -1.04937e+01, 4.80959e-01}; | |
1119 | ||
1120 | Double_t x = TMath::Abs(px[0]); | |
1121 | Double_t y; | |
1122 | ||
1123 | if (x < 4.0) { | |
1124 | y = 100.78 - 1.8353 * x * x; | |
1125 | } else if (x < 7.3) { | |
1126 | Int_t j; | |
1127 | y = c[j = 4]; | |
1128 | while (j > 0) y = y * x + c[--j]; | |
1129 | } else { | |
1130 | y =0.; | |
1131 | } | |
1132 | ||
1133 | if(y<0) y=0; | |
1134 | ||
1135 | return y; | |
1136 | } | |
1137 | ||
1138 | Double_t AliGenMUONlib::YJpsiCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) | |
1139 | { | |
1140 | // J/Psi y | |
1141 | // | |
1142 | // pp 3.94 TeV | |
1143 | // rescaling of YJpsiPP(14 TeV) using 3.94 TeV / 14 TeV ratio of y-spectra in LO QCD | |
1144 | // | |
1145 | Double_t c[5] = {4.00785e+02, -1.41159e+01, -3.28599e+01, 5.53048e+00, -2.45151e-01}; | |
1146 | Double_t x = TMath::Abs(px[0]); | |
1147 | Double_t y; | |
1148 | ||
1149 | if (x < 5.5) { | |
1150 | y = 107.389 - 2.7454 * x * x; | |
1151 | } else if (x < 7.0) { | |
1152 | Int_t j; | |
1153 | y = c[j = 4]; | |
1154 | while (j > 0) y = y * x + c[--j]; | |
1155 | } else { | |
1156 | y =0.; | |
1157 | } | |
1158 | ||
1159 | if(y<0) y=0; | |
1160 | ||
1161 | return y; | |
1162 | } | |
1163 | ||
a4f206bf | 1164 | Double_t AliGenMUONlib::YJpsiCDFscaledPP3( const Double_t *px, const Double_t *dummy) |
1165 | { | |
1166 | // J/Psi y | |
1167 | return AliGenMUONlib::YJpsiPP2760(px, dummy); | |
1168 | } | |
1169 | ||
1170 | Double_t AliGenMUONlib::YJpsiCDFscaledPP2( const Double_t *px, const Double_t */*dummy*/) | |
1171 | { | |
1172 | // J/Psi y | |
7455632e | 1173 | // pp 1.96 TeV |
a4f206bf | 1174 | // |
7455632e | 1175 | return YJpsiPPdummy(*px, 1960); |
a4f206bf | 1176 | } |
1177 | ||
75e0cc59 | 1178 | Double_t AliGenMUONlib::YJpsiPP( const Double_t *px, const Double_t */*dummy*/) |
bb6e81ac | 1179 | { |
1180 | ||
1181 | // | |
1182 | // J/Psi y | |
1183 | // | |
1184 | // | |
1185 | // R. Vogt 2002 | |
1186 | // pp 14 TeV | |
1187 | // MRST HO | |
1188 | // mc = 1.4 GeV, pt-kick 1 GeV | |
1189 | // | |
1190 | ||
1191 | Double_t c[5] = {1.38532e+00, 1.00596e+02, -3.46378e+01, 3.94172e+00, -1.48319e-01}; | |
1192 | Double_t x = TMath::Abs(px[0]); | |
1193 | Double_t y; | |
1194 | ||
1195 | if (x < 2.5) { | |
1196 | y = 96.455 - 0.8483 * x * x; | |
1197 | } else if (x < 7.9) { | |
1198 | Int_t j; | |
1199 | y = c[j = 4]; | |
1200 | while (j > 0) y = y * x + c[--j]; | |
1201 | } else { | |
1202 | y =0.; | |
1203 | } | |
1204 | ||
1205 | return y; | |
1206 | } | |
1207 | ||
9fd56238 | 1208 | Double_t AliGenMUONlib::YJpsiCDFscaledPPb9( const Double_t *px, const Double_t */*dummy*/) |
1209 | { | |
1210 | // J/Psi y | |
1211 | // | |
7455632e | 1212 | // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79 |
9fd56238 | 1213 | // |
1214 | Double_t c[7] = {7.52296e-01, 2.49917e-02, 3.36500e-03, 1.91187e-03, 2.92154e-04, | |
1215 | -4.16509e-05,-7.62709e-06}; | |
1216 | Double_t y; | |
1217 | Double_t x = px[0] + 0.47; // rapidity shift | |
1218 | Int_t j; | |
1219 | y = c[j = 6]; | |
1220 | while (j > 0) y = y * x + c[--j]; | |
1221 | if(y<0) y=0; | |
1222 | ||
1223 | return y * AliGenMUONlib::YJpsiCDFscaledPP9dummy(x); | |
1224 | } | |
1225 | ||
1226 | Double_t AliGenMUONlib::YJpsiCDFscaledPbP9( const Double_t *px, const Double_t */*dummy*/) | |
1227 | { | |
1228 | // J/Psi y | |
1229 | // | |
7455632e | 1230 | // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.79 |
9fd56238 | 1231 | // |
1232 | Double_t c[7] = {7.52296e-01, 2.49917e-02, 3.36500e-03, 1.91187e-03, 2.92154e-04, | |
1233 | -4.16509e-05,-7.62709e-06}; | |
1234 | Double_t y; | |
1235 | Double_t x = -px[0] + 0.47; // rapidity shift | |
1236 | Int_t j; | |
1237 | y = c[j = 6]; | |
1238 | while (j > 0) y = y * x + c[--j]; | |
1239 | if(y<0) y=0; | |
1240 | ||
1241 | return y * AliGenMUONlib::YJpsiCDFscaledPP9dummy(x); | |
1242 | } | |
1243 | ||
1244 | Double_t AliGenMUONlib::YJpsiCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) | |
1245 | { | |
1246 | // J/Psi y | |
1247 | // | |
1248 | // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.66 | |
1249 | // | |
1250 | Double_t c[4] = {5.95228e-01, 9.45069e-03, 2.44710e-04, -1.32894e-05}; | |
1251 | Double_t x = px[0]*px[0]; | |
1252 | Double_t y; | |
1253 | Int_t j; | |
1254 | y = c[j = 3]; | |
1255 | while (j > 0) y = y * x + c[--j]; | |
1256 | if(y<0) y=0; | |
1257 | ||
1258 | return y * AliGenMUONlib::YJpsiCDFscaledPP4(px,dummy); | |
1259 | } | |
1260 | ||
7455632e | 1261 | Double_t AliGenMUONlib::YJpsiBPbPb( const Double_t *px, const Double_t */*dummy*/) |
1262 | { | |
1263 | ||
1264 | // | |
1265 | // J/Psi from B->J/Psi X | |
1266 | // | |
1267 | // | |
1268 | ||
1269 | ||
1270 | Double_t c[7] = {7.37025e-02, 0., -2.94487e-03, 0., 6.07953e-06, 0., 5.39219e-07}; | |
1271 | ||
1272 | Double_t x = TMath::Abs(px[0]); | |
1273 | Double_t y; | |
1274 | ||
1275 | if (x > 6.) { | |
1276 | y = 0.; | |
1277 | } else { | |
1278 | Int_t j; | |
1279 | y = c[j = 6]; | |
1280 | while (j > 0) y = y * x + c[--j]; | |
1281 | } | |
1282 | ||
1283 | return y; | |
1284 | } | |
1285 | ||
1286 | ||
1287 | ||
1288 | // particle composition | |
1289 | // | |
1290 | Int_t AliGenMUONlib::IpJpsi(TRandom *) | |
1291 | { | |
1292 | // J/Psi composition | |
1293 | return 443; | |
1294 | } | |
1295 | Int_t AliGenMUONlib::IpPsiP(TRandom *) | |
1296 | { | |
1297 | // Psi prime composition | |
1298 | return 100443; | |
1299 | } | |
1300 | Int_t AliGenMUONlib::IpJpsiFamily(TRandom *) | |
1301 | { | |
1302 | // J/Psi composition | |
1303 | Int_t ip; | |
1304 | Float_t r = gRandom->Rndm(); | |
1305 | if (r < 0.98) { | |
1306 | ip = 443; | |
1307 | } else { | |
1308 | ip = 100443; | |
1309 | } | |
1310 | return ip; | |
1311 | } | |
1312 | ||
1313 | ||
1314 | ||
1315 | // Upsilon | |
1316 | // | |
1317 | // | |
1318 | // pt-distribution | |
1319 | //____________________________________________________________ | |
1320 | Double_t AliGenMUONlib::PtUpsilonPPdummy(Double_t x, Double_t energy) | |
1321 | { | |
1322 | // Upsilon pT | |
1323 | // pp | |
1324 | // from the fit of CDF & LHC data, like for J/Psi in arXiv:1103.2394 | |
1325 | // | |
1326 | const Double_t kpt0 = 1.96*TMath::Power(energy,0.095); | |
1327 | const Double_t kxn = 3.4; | |
1328 | // | |
1329 | Double_t pass1 = 1.+0.471*(x/kpt0)*(x/kpt0); | |
1330 | return x/TMath::Power(pass1,kxn); | |
1331 | } | |
1332 | ||
1333 | Double_t AliGenMUONlib::PtUpsilonPP7000(const Double_t *px, const Double_t */*dummy*/) | |
1334 | { | |
1335 | // Upsilon pT | |
1336 | // pp 7 TeV | |
1337 | // | |
1338 | return PtUpsilonPPdummy(*px,7000); | |
1339 | } | |
1340 | ||
1341 | Double_t AliGenMUONlib::PtUpsilonPP2760(const Double_t *px, const Double_t */*dummy*/) | |
1342 | { | |
1343 | // Upsilon pT | |
1344 | // pp 2.76 TeV | |
1345 | // | |
1346 | return PtUpsilonPPdummy(*px,2760); | |
1347 | } | |
1348 | ||
1349 | Double_t AliGenMUONlib::PtUpsilonPP8800(const Double_t *px, const Double_t */*dummy*/) | |
1350 | { | |
1351 | // Upsilon pT | |
1352 | // pp 8.8 TeV | |
1353 | // | |
1354 | return PtUpsilonPPdummy(*px,8800); | |
1355 | } | |
1356 | ||
1357 | Double_t AliGenMUONlib::PtUpsilonPbPb2760ShFdummy(Double_t x, Int_t n) | |
1358 | { | |
1359 | // Usilon shadowing factor vs pT for PbPb min. bias and 11 centr. bins (in 2.5<y<4) | |
1360 | // | |
1361 | // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.87 in 4pi | |
1362 | // | |
1363 | const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558, | |
1364 | 0.428, 0.317, 0.231, 0.156}; | |
1365 | const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224, | |
1366 | 0.106, 0.041, 0.013, 0.002}; | |
1367 | const Double_t c1[7] = {1.9089e+00, 1.2969e-03, 8.9786e-05,-5.3062e-06, | |
1368 | -1.0046e-06,6.1446e-08, 1.0885e-09}; | |
1369 | const Double_t c2[7] = {8.8423e-01,-8.7488e-05, 5.9857e-04,-5.7959e-05, | |
1370 | 2.0059e-06,-2.7343e-08, 6.6053e-10}; | |
1371 | Double_t y1, y2; | |
1372 | Int_t j; | |
1373 | y1 = c1[j = 6]; y2 = c2[6]; | |
1374 | while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];} | |
1375 | ||
1376 | y1 /= 1.+c1[6]*TMath::Power(x,6); | |
1377 | y2 /= 1.+c2[6]*TMath::Power(x,6); | |
1378 | // | |
1379 | y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n]; | |
1380 | if(y1<0) y1=0; | |
1381 | return y1; | |
1382 | } | |
1383 | ||
1384 | Double_t AliGenMUONlib::PtUpsilonPbPb2760(const Double_t *px, const Double_t *dummy) | |
1385 | { | |
1386 | // Upsilon pT | |
1387 | // PbPb 2.76 TeV, minimum bias 0-100 % | |
1388 | // | |
1389 | return PtUpsilonPbPb2760ShFdummy(*px, 0) * PtUpsilonPP2760(px, dummy); | |
1390 | } | |
1391 | ||
1392 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c1(const Double_t *px, const Double_t *dummy) | |
1393 | { | |
1394 | // Upsilon pT | |
1395 | // PbPb 2.76 TeV, 1st centrality bin 0-5 % | |
1396 | // | |
1397 | return PtUpsilonPbPb2760ShFdummy(*px, 1) * PtUpsilonPP2760(px, dummy); | |
1398 | } | |
1399 | ||
1400 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c2(const Double_t *px, const Double_t *dummy) | |
1401 | { | |
1402 | // Upsilon pT | |
1403 | // PbPb 2.76 TeV, 2nd centrality bin 5-10 % | |
1404 | // | |
1405 | return PtUpsilonPbPb2760ShFdummy(*px, 2) * PtUpsilonPP2760(px, dummy); | |
1406 | } | |
1407 | ||
1408 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c3(const Double_t *px, const Double_t *dummy) | |
1409 | { | |
1410 | // Upsilon pT | |
1411 | // PbPb 2.76 TeV, 3rd centrality bin 10-20 % | |
1412 | // | |
1413 | return PtUpsilonPbPb2760ShFdummy(*px, 3) * PtUpsilonPP2760(px, dummy); | |
1414 | } | |
1415 | ||
1416 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c4(const Double_t *px, const Double_t *dummy) | |
1417 | { | |
1418 | // Upsilon pT | |
1419 | // PbPb 2.76 TeV, 4th centrality bin 20-30 % | |
1420 | // | |
1421 | return PtUpsilonPbPb2760ShFdummy(*px, 4) * PtUpsilonPP2760(px, dummy); | |
1422 | } | |
1423 | ||
1424 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c5(const Double_t *px, const Double_t *dummy) | |
1425 | { | |
1426 | // Upsilon pT | |
1427 | // PbPb 2.76 TeV, 5th centrality bin 30-40 % | |
1428 | // | |
1429 | return PtUpsilonPbPb2760ShFdummy(*px, 5) * PtUpsilonPP2760(px, dummy); | |
1430 | } | |
1431 | ||
1432 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c6(const Double_t *px, const Double_t *dummy) | |
1433 | { | |
1434 | // Upsilon pT | |
1435 | // PbPb 2.76 TeV, 6th centrality bin 40-50 % | |
1436 | // | |
1437 | return PtUpsilonPbPb2760ShFdummy(*px, 6) * PtUpsilonPP2760(px, dummy); | |
1438 | } | |
1439 | ||
1440 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c7(const Double_t *px, const Double_t *dummy) | |
1441 | { | |
1442 | // Upsilon pT | |
1443 | // PbPb 2.76 TeV, 7th centrality bin 50-60 % | |
1444 | // | |
1445 | return PtUpsilonPbPb2760ShFdummy(*px, 7) * PtUpsilonPP2760(px, dummy); | |
1446 | } | |
1447 | ||
1448 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c8(const Double_t *px, const Double_t *dummy) | |
1449 | { | |
1450 | // Upsilon pT | |
1451 | // PbPb 2.76 TeV, 8th centrality bin 60-70 % | |
1452 | // | |
1453 | return PtUpsilonPbPb2760ShFdummy(*px, 8) * PtUpsilonPP2760(px, dummy); | |
1454 | } | |
1455 | ||
1456 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c9(const Double_t *px, const Double_t *dummy) | |
1457 | { | |
1458 | // Upsilon pT | |
1459 | // PbPb 2.76 TeV, 9th centrality bin 70-80 % | |
1460 | // | |
1461 | return PtUpsilonPbPb2760ShFdummy(*px, 9) * PtUpsilonPP2760(px, dummy); | |
1462 | } | |
1463 | ||
1464 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c10(const Double_t *px, const Double_t *dummy) | |
1465 | { | |
1466 | // Upsilon pT | |
1467 | // PbPb 2.76 TeV, 10th centrality bin 80-90 % | |
1468 | // | |
1469 | return PtUpsilonPbPb2760ShFdummy(*px, 10) * PtUpsilonPP2760(px, dummy); | |
1470 | } | |
1471 | ||
1472 | Double_t AliGenMUONlib::PtUpsilonPbPb2760c11(const Double_t *px, const Double_t *dummy) | |
1473 | { | |
1474 | // Upsilon pT | |
1475 | // PbPb 2.76 TeV, 11th centrality bin 90-100 % | |
1476 | // | |
1477 | return PtUpsilonPbPb2760ShFdummy(*px, 11) * PtUpsilonPP2760(px, dummy); | |
1478 | } | |
1479 | ||
1480 | Double_t AliGenMUONlib::PtUpsilonPPb8800ShFdummy(Double_t x, Int_t n) | |
1481 | { | |
1482 | // Upsilon shadowing factor vs pT for pPb min. bias and 4 centr. bins (in 2.5<y<4) | |
1483 | // | |
1484 | // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.89 in 4pi | |
1485 | // | |
1486 | const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23}; | |
1487 | const Double_t c[5] = {7.6561e-01, 1.1360e-04, 4.9596e-04,-3.0287e-05, 3.7555e-06}; | |
1488 | Double_t y; | |
1489 | Int_t j; | |
1490 | y = c[j = 4]; | |
1491 | while (j > 0) y = y * x + c[--j]; | |
1492 | y /= 1 + c[4]*TMath::Power(x,4); | |
1493 | // | |
1494 | return 1 + (y-1)*f[n]; | |
1495 | } | |
1496 | ||
1497 | Double_t AliGenMUONlib::PtUpsilonPPb8800(const Double_t *px, const Double_t *dummy) | |
1498 | { | |
1499 | // Upsilon pT | |
1500 | // pPb 8.8 TeV, minimum bias 0-100 % | |
1501 | // | |
1502 | return PtUpsilonPPb8800ShFdummy(*px, 0) * PtUpsilonPP8800(px, dummy); | |
1503 | } | |
1504 | ||
1505 | Double_t AliGenMUONlib::PtUpsilonPPb8800c1(const Double_t *px, const Double_t *dummy) | |
1506 | { | |
1507 | // Upsilon pT | |
1508 | // pPb 8.8 TeV, 1st centrality bin 0-20 % | |
1509 | // | |
1510 | return PtUpsilonPPb8800ShFdummy(*px, 1) * PtUpsilonPP8800(px, dummy); | |
1511 | } | |
1512 | ||
1513 | Double_t AliGenMUONlib::PtUpsilonPPb8800c2(const Double_t *px, const Double_t *dummy) | |
1514 | { | |
1515 | // Upsilon pT | |
1516 | // pPb 8.8 TeV, 2nd centrality bin 20-40 % | |
1517 | // | |
1518 | return PtUpsilonPPb8800ShFdummy(*px, 2) * PtUpsilonPP8800(px, dummy); | |
1519 | } | |
1520 | ||
1521 | Double_t AliGenMUONlib::PtUpsilonPPb8800c3(const Double_t *px, const Double_t *dummy) | |
17d28ba5 | 1522 | { |
7455632e | 1523 | // Upsilon pT |
1524 | // pPb 8.8 TeV, 3rd centrality bin 40-60 % | |
1525 | // | |
1526 | return PtUpsilonPPb8800ShFdummy(*px, 3) * PtUpsilonPP8800(px, dummy); | |
1527 | } | |
17d28ba5 | 1528 | |
7455632e | 1529 | Double_t AliGenMUONlib::PtUpsilonPPb8800c4(const Double_t *px, const Double_t *dummy) |
1530 | { | |
1531 | // Upsilon pT | |
1532 | // pPb 8.8 TeV, 4th centrality bin 60-100 % | |
17d28ba5 | 1533 | // |
7455632e | 1534 | return PtUpsilonPPb8800ShFdummy(*px, 4) * PtUpsilonPP8800(px, dummy); |
1535 | } | |
1536 | ||
1537 | Double_t AliGenMUONlib::PtUpsilonPbP8800ShFdummy(Double_t x, Int_t n) | |
1538 | { | |
1539 | // Upsilon shadowing factor vs pT for Pbp min. bias and 4 centr. bins (in 2.5<y<4) | |
17d28ba5 | 1540 | // |
7455632e | 1541 | // Pbp 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.89 in 4pi |
17d28ba5 | 1542 | // |
7455632e | 1543 | const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23}; |
1544 | const Double_t c[5] = {1.0975, 3.1905e-03,-2.0477e-04, 8.5270e-06, 2.5343e-06}; | |
1545 | Double_t y; | |
1546 | Int_t j; | |
1547 | y = c[j = 4]; | |
1548 | while (j > 0) y = y * x + c[--j]; | |
1549 | y /= 1 + c[4]*TMath::Power(x,4); | |
1550 | // | |
1551 | return 1 + (y-1)*f[n]; | |
17d28ba5 | 1552 | } |
1553 | ||
7455632e | 1554 | Double_t AliGenMUONlib::PtUpsilonPbP8800(const Double_t *px, const Double_t *dummy) |
fe4da5cc | 1555 | { |
7455632e | 1556 | // Upsilon pT |
1557 | // Pbp 8.8 TeV, minimum bias 0-100 % | |
1558 | // | |
1559 | return PtUpsilonPbP8800ShFdummy(*px, 0) * PtUpsilonPP8800(px, dummy); | |
fe4da5cc | 1560 | } |
7455632e | 1561 | |
1562 | Double_t AliGenMUONlib::PtUpsilonPbP8800c1(const Double_t *px, const Double_t *dummy) | |
88e5db43 | 1563 | { |
7455632e | 1564 | // Upsilon pT |
1565 | // Pbp 8.8 TeV, 1st centrality bin 0-20 % | |
1566 | // | |
1567 | return PtUpsilonPbP8800ShFdummy(*px, 1) * PtUpsilonPP8800(px, dummy); | |
88e5db43 | 1568 | } |
7455632e | 1569 | |
1570 | Double_t AliGenMUONlib::PtUpsilonPbP8800c2(const Double_t *px, const Double_t *dummy) | |
0ad09590 | 1571 | { |
7455632e | 1572 | // Upsilon pT |
1573 | // Pbp 8.8 TeV, 2nd centrality bin 20-40 % | |
1574 | // | |
1575 | return PtUpsilonPbP8800ShFdummy(*px, 2) * PtUpsilonPP8800(px, dummy); | |
0ad09590 | 1576 | } |
1577 | ||
7455632e | 1578 | Double_t AliGenMUONlib::PtUpsilonPbP8800c3(const Double_t *px, const Double_t *dummy) |
1579 | { | |
1580 | // Upsilon pT | |
1581 | // Pbp 8.8 TeV, 3rd centrality bin 40-60 % | |
fe4da5cc | 1582 | // |
7455632e | 1583 | return PtUpsilonPbP8800ShFdummy(*px, 3) * PtUpsilonPP8800(px, dummy); |
1584 | } | |
1585 | ||
1586 | Double_t AliGenMUONlib::PtUpsilonPbP8800c4(const Double_t *px, const Double_t *dummy) | |
1587 | { | |
1588 | // Upsilon pT | |
1589 | // Pbp 8.8 TeV, 4th centrality bin 60-100 % | |
fe4da5cc | 1590 | // |
7455632e | 1591 | return PtUpsilonPbP8800ShFdummy(*px, 4) * PtUpsilonPP8800(px, dummy); |
1592 | } | |
1593 | ||
75e0cc59 | 1594 | Double_t AliGenMUONlib::PtUpsilon( const Double_t *px, const Double_t */*dummy*/ ) |
fe4da5cc | 1595 | { |
d90f80fd | 1596 | // Upsilon pT |
1597 | const Double_t kpt0 = 5.3; | |
1598 | const Double_t kxn = 2.5; | |
fe4da5cc | 1599 | Double_t x=*px; |
1600 | // | |
d90f80fd | 1601 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); |
1602 | return x/TMath::Power(pass1,kxn); | |
fe4da5cc | 1603 | } |
05932df6 | 1604 | |
75e0cc59 | 1605 | Double_t AliGenMUONlib::PtUpsilonCDFscaled( const Double_t *px, const Double_t */*dummy*/ ) |
0e137c25 | 1606 | { |
1607 | // Upsilon pT | |
48416d65 | 1608 | const Double_t kpt0 = 7.753; |
1609 | const Double_t kxn = 3.042; | |
0e137c25 | 1610 | Double_t x=*px; |
1611 | // | |
1612 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
1613 | return x/TMath::Power(pass1,kxn); | |
1614 | } | |
1615 | ||
75e0cc59 | 1616 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPP( const Double_t *px, const Double_t */*dummy*/ ) |
9ff13849 | 1617 | { |
1618 | // Upsilon pT | |
1619 | // | |
1620 | // pp 14 TeV | |
1621 | // | |
1622 | // scaled from CDF data at 2 TeV | |
1623 | ||
1624 | const Double_t kpt0 = 8.610; | |
1625 | const Double_t kxn = 3.051; | |
1626 | Double_t x=*px; | |
1627 | // | |
1628 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
1629 | return x/TMath::Power(pass1,kxn); | |
1630 | } | |
1631 | ||
b33adf51 | 1632 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) |
1633 | { | |
1634 | // Upsilon pT | |
1635 | // | |
1636 | // pp 10 TeV | |
1637 | // | |
1638 | // scaled from CDF data at 2 TeV | |
1639 | ||
1640 | const Double_t kpt0 = 8.235; | |
1641 | const Double_t kxn = 3.051; | |
1642 | Double_t x=*px; | |
1643 | // | |
1644 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
1645 | return x/TMath::Power(pass1,kxn); | |
1646 | } | |
1647 | ||
9fd56238 | 1648 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) |
1649 | { | |
1650 | // Upsilon pT | |
1651 | // | |
1652 | // pp 8.8 TeV | |
1653 | // scaled from CDF data at 2 TeV | |
1654 | // | |
1655 | const Double_t kpt0 = 8.048; | |
1656 | const Double_t kxn = 3.051; | |
1657 | Double_t x=*px; | |
1658 | // | |
1659 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
1660 | return x/TMath::Power(pass1,kxn); | |
1661 | } | |
1662 | ||
1663 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) | |
1664 | { | |
1665 | // Upsilon pT | |
1666 | // | |
1667 | // pp 7 TeV | |
1668 | // | |
1669 | // scaled from CDF data at 2 TeV | |
1670 | ||
1671 | const Double_t kpt0 = 7.817; | |
1672 | const Double_t kxn = 3.051; | |
1673 | Double_t x=*px; | |
1674 | // | |
1675 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
1676 | return x/TMath::Power(pass1,kxn); | |
1677 | } | |
1678 | ||
1679 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) | |
1680 | { | |
1681 | // Upsilon pT | |
1682 | // | |
1683 | // pp 3.94 TeV | |
1684 | // scaled from CDF data at 2 TeV | |
1685 | // | |
1686 | const Double_t kpt0 = 7.189; | |
1687 | const Double_t kxn = 3.051; | |
1688 | Double_t x=*px; | |
1689 | // | |
1690 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
1691 | return x/TMath::Power(pass1,kxn); | |
1692 | } | |
1693 | ||
1694 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPPb9( const Double_t *px, const Double_t *dummy) | |
1695 | { | |
1696 | // Upsilon pT | |
1697 | // | |
7455632e | 1698 | // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89 |
9fd56238 | 1699 | // |
1700 | Double_t c[5] = {7.64952e-01, 1.12501e-04, 4.96038e-04, -3.03198e-05, 3.74035e-06}; | |
1701 | Double_t x=*px; | |
1702 | Double_t y; | |
1703 | Int_t j; | |
1704 | y = c[j = 4]; | |
1705 | while (j > 0) y = y * x + c[--j]; | |
1706 | // | |
1707 | Double_t d = 1.+c[4]*TMath::Power(x,4); | |
1708 | return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP9(px,dummy); | |
1709 | } | |
1710 | ||
1711 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPbP9( const Double_t *px, const Double_t *dummy) | |
1712 | { | |
1713 | // Upsilon pT | |
1714 | // | |
7455632e | 1715 | // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89 |
9fd56238 | 1716 | // |
1717 | Double_t c[5] = {1.09881e+00, 3.08329e-03, -2.00356e-04, 8.28991e-06, 2.52576e-06}; | |
1718 | Double_t x=*px; | |
1719 | Double_t y; | |
1720 | Int_t j; | |
1721 | y = c[j = 4]; | |
1722 | while (j > 0) y = y * x + c[--j]; | |
1723 | // | |
1724 | Double_t d = 1.+c[4]*TMath::Power(x,4); | |
1725 | return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP9(px,dummy); | |
1726 | } | |
1727 | ||
1728 | Double_t AliGenMUONlib::PtUpsilonCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) | |
1729 | { | |
1730 | // Upsilon pT | |
1731 | // | |
1732 | // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.85 | |
1733 | // | |
1734 | Double_t c[5] = {8.65872e-01, 2.05465e-03, 2.56063e-04, -1.65598e-05, 2.29209e-06}; | |
1735 | Double_t x=*px; | |
1736 | Double_t y; | |
1737 | Int_t j; | |
1738 | y = c[j = 4]; | |
1739 | while (j > 0) y = y * x + c[--j]; | |
1740 | // | |
1741 | Double_t d = 1.+c[4]*TMath::Power(x,4); | |
1742 | return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP4(px,dummy); | |
1743 | } | |
1744 | ||
75e0cc59 | 1745 | Double_t AliGenMUONlib::PtUpsilonFlat( const Double_t */*px*/, const Double_t */*dummy*/ ) |
4ca8d070 | 1746 | { |
1747 | return 1.; | |
1748 | } | |
1749 | ||
75e0cc59 | 1750 | Double_t AliGenMUONlib::PtUpsilonPbPb( const Double_t *px, const Double_t */*dummy*/) |
05932df6 | 1751 | { |
05932df6 | 1752 | // |
1753 | // Upsilon pT | |
1754 | // | |
1755 | // | |
1756 | // R. Vogt 2002 | |
1757 | // PbPb 5.5 TeV | |
1758 | // MRST HO | |
1759 | // mc = 1.4 GeV, pt-kick 1 GeV | |
1760 | // | |
1af7144e | 1761 | Float_t x = px[0]; |
1762 | Double_t c[8] = { | |
1763 | -1.03488e+01, 1.28065e+01, -6.60500e+00, 1.66140e+00, | |
1764 | -2.34293e-01, 1.86925e-02, -7.80708e-04, 1.30610e-05 | |
1765 | }; | |
3d905dd7 | 1766 | Double_t y; |
1767 | if (x < 10.) { | |
1768 | Int_t j; | |
1769 | y = c[j = 7]; | |
1770 | while (j > 0) y = y * x +c[--j]; | |
1771 | y = x * TMath::Exp(y); | |
1772 | } else { | |
1773 | y = 0.; | |
1774 | } | |
1af7144e | 1775 | return y; |
05932df6 | 1776 | } |
1777 | ||
75e0cc59 | 1778 | Double_t AliGenMUONlib::PtUpsilonPP( const Double_t *px, const Double_t */*dummy*/) |
bb6e81ac | 1779 | { |
bb6e81ac | 1780 | // |
1781 | // Upsilon pT | |
1782 | // | |
1783 | // | |
1784 | // R. Vogt 2002 | |
1785 | // pp 14 TeV | |
1786 | // MRST HO | |
1787 | // mc = 1.4 GeV, pt-kick 1 GeV | |
1788 | // | |
1789 | Float_t x = px[0]; | |
1790 | Double_t c[8] = {-7.93955e+00, 1.06306e+01, -5.21392e+00, 1.19703e+00, | |
1791 | -1.45718e-01, 8.95151e-03, -2.04806e-04, -1.13053e-06}; | |
1792 | ||
1793 | Double_t y; | |
1794 | if (x < 10.) { | |
1795 | Int_t j; | |
1796 | y = c[j = 7]; | |
1797 | while (j > 0) y = y * x +c[--j]; | |
1798 | y = x * TMath::Exp(y); | |
1799 | } else { | |
1800 | y = 0.; | |
1801 | } | |
1802 | return y; | |
1803 | } | |
1804 | ||
fe4da5cc | 1805 | // |
1806 | // y-distribution | |
1807 | // | |
1808 | //____________________________________________________________ | |
7455632e | 1809 | Double_t AliGenMUONlib::YUpsilonPPdummy(Double_t x, Double_t energy) |
1810 | { | |
1811 | // Upsilon y | |
1812 | // pp | |
1813 | // from the fit of CDF & LHC data, like for J/Psi in arXiv:1103.2394 | |
1814 | // | |
1815 | x = x/TMath::Log(energy/9.46); | |
1816 | x = x*x; | |
1817 | Double_t y = TMath::Exp(-x/0.4/0.4/2); | |
1818 | if(x > 1) y=0; | |
1819 | return y; | |
1820 | } | |
1821 | ||
1822 | Double_t AliGenMUONlib::YUpsilonPPpoly(Double_t x, Double_t energy) | |
1823 | { | |
1824 | // Upsilon y | |
1825 | // pp | |
1826 | // from the fit of CDF & LHC data, like for J/Psi in arXiv:1103.2394 | |
1827 | // | |
1828 | x = x/TMath::Log(energy/9.46); | |
1829 | x = x*x; | |
1830 | Double_t y = 1 - 6.9*x*x; | |
1831 | if(y < 0) y=0; | |
1832 | return y; | |
1833 | } | |
1834 | ||
1835 | Double_t AliGenMUONlib::YUpsilonPP7000(const Double_t *px, const Double_t */*dummy*/) | |
1836 | { | |
1837 | // Upsilon y | |
1838 | // pp 7 TeV | |
1839 | // | |
1840 | return YUpsilonPPdummy(*px, 7000); | |
1841 | } | |
1842 | ||
1843 | Double_t AliGenMUONlib::YUpsilonPP2760(const Double_t *px, const Double_t */*dummy*/) | |
1844 | { | |
1845 | // Upsilon y | |
1846 | // pp 2.76 TeV | |
1847 | // | |
1848 | return YUpsilonPPdummy(*px, 2760); | |
1849 | } | |
1850 | ||
1851 | Double_t AliGenMUONlib::YUpsilonPP8800(const Double_t *px, const Double_t */*dummy*/) | |
1852 | { | |
1853 | // Upsilon y | |
1854 | // pp 8.8 TeV | |
1855 | // | |
1856 | return YUpsilonPPdummy(*px, 8800); | |
1857 | } | |
1858 | ||
1859 | Double_t AliGenMUONlib::YUpsilonPPpoly7000(const Double_t *px, const Double_t */*dummy*/) | |
1860 | { | |
1861 | // Upsilon y | |
1862 | // pp 7 TeV | |
1863 | // | |
1864 | return YUpsilonPPpoly(*px, 7000); | |
1865 | } | |
1866 | ||
1867 | Double_t AliGenMUONlib::YUpsilonPPpoly2760(const Double_t *px, const Double_t */*dummy*/) | |
1868 | { | |
1869 | // Upsilon y | |
1870 | // pp 2.76 TeV | |
1871 | // | |
1872 | return YUpsilonPPpoly(*px, 2760); | |
1873 | } | |
1874 | ||
1875 | Double_t AliGenMUONlib::YUpsilonPbPb2760ShFdummy(Double_t x, Int_t n) | |
1876 | { | |
1877 | // Upsilon shadowing factor vs y for PbPb min. bias and 11 centr. bins | |
1878 | // | |
1879 | // PbPb 2.76 TeV, for EKS98, minimum bias shadowing factor = 0.87 in 4pi | |
1880 | // | |
1881 | const Double_t f1[12] = {1, 1.128, 1.097, 1.037, 0.937, 0.821, 0.693, 0.558, | |
1882 | 0.428, 0.317, 0.231, 0.156}; | |
1883 | const Double_t f2[12] = {1, 1.313, 1.202, 1.039, 0.814, 0.593, 0.391, 0.224, | |
1884 | 0.106, 0.041, 0.013, 0.002}; | |
1885 | const Double_t c1[5] = {1.8547e+00, 1.6717e-02,-2.1285e-04,-9.7662e-05, 2.5768e-06}; | |
1886 | const Double_t c2[5] = {8.6029e-01, 1.1742e-02,-2.7944e-04,-6.7973e-05, 1.8838e-06}; | |
1887 | ||
1888 | x = x*x; | |
1889 | Double_t y1, y2; | |
1890 | Int_t j; | |
1891 | y1 = c1[j = 4]; y2 = c2[4]; | |
1892 | while (j > 0) {y1 = y1 * x + c1[--j]; y2 = y2 * x + c2[j];} | |
1893 | ||
1894 | y1 = 1 + (y1-2)*f1[n] + (y2+1-y1)*f2[n]; | |
1895 | if(y1<0) y1=0; | |
1896 | return y1; | |
1897 | } | |
1898 | ||
1899 | Double_t AliGenMUONlib::YUpsilonPbPb2760(const Double_t *px, const Double_t *dummy) | |
1900 | { | |
1901 | // Upsilon y | |
1902 | // PbPb 2.76 TeV, minimum bias 0-100 % | |
1903 | // | |
1904 | return YUpsilonPbPb2760ShFdummy(*px, 0) * YUpsilonPP2760(px, dummy); | |
1905 | } | |
1906 | ||
1907 | Double_t AliGenMUONlib::YUpsilonPbPb2760c1(const Double_t *px, const Double_t *dummy) | |
1908 | { | |
1909 | // Upsilon y | |
1910 | // PbPb 2.76 TeV, 1st centrality bin 0-5 % | |
1911 | // | |
1912 | return YUpsilonPbPb2760ShFdummy(*px, 1) * YUpsilonPP2760(px, dummy); | |
1913 | } | |
1914 | ||
1915 | Double_t AliGenMUONlib::YUpsilonPbPb2760c2(const Double_t *px, const Double_t *dummy) | |
1916 | { | |
1917 | // Upsilon y | |
1918 | // PbPb 2.76 TeV, 2nd centrality bin 5-10 % | |
1919 | // | |
1920 | return YUpsilonPbPb2760ShFdummy(*px, 2) * YUpsilonPP2760(px, dummy); | |
1921 | } | |
1922 | ||
1923 | Double_t AliGenMUONlib::YUpsilonPbPb2760c3(const Double_t *px, const Double_t *dummy) | |
1924 | { | |
1925 | // Upsilon y | |
1926 | // PbPb 2.76 TeV, 3rd centrality bin 10-20 % | |
1927 | // | |
1928 | return YUpsilonPbPb2760ShFdummy(*px, 3) * YUpsilonPP2760(px, dummy); | |
1929 | } | |
1930 | ||
1931 | Double_t AliGenMUONlib::YUpsilonPbPb2760c4(const Double_t *px, const Double_t *dummy) | |
1932 | { | |
1933 | // Upsilon y | |
1934 | // PbPb 2.76 TeV, 4th centrality bin 20-30 % | |
1935 | // | |
1936 | return YUpsilonPbPb2760ShFdummy(*px, 4) * YUpsilonPP2760(px, dummy); | |
1937 | } | |
1938 | ||
1939 | Double_t AliGenMUONlib::YUpsilonPbPb2760c5(const Double_t *px, const Double_t *dummy) | |
1940 | { | |
1941 | // Upsilon y | |
1942 | // PbPb 2.76 TeV, 5th centrality bin 30-40 % | |
1943 | // | |
1944 | return YUpsilonPbPb2760ShFdummy(*px, 5) * YUpsilonPP2760(px, dummy); | |
1945 | } | |
1946 | ||
1947 | Double_t AliGenMUONlib::YUpsilonPbPb2760c6(const Double_t *px, const Double_t *dummy) | |
1948 | { | |
1949 | // Upsilon y | |
1950 | // PbPb 2.76 TeV, 6th centrality bin 40-50 % | |
1951 | // | |
1952 | return YUpsilonPbPb2760ShFdummy(*px, 6) * YUpsilonPP2760(px, dummy); | |
1953 | } | |
1954 | ||
1955 | Double_t AliGenMUONlib::YUpsilonPbPb2760c7(const Double_t *px, const Double_t *dummy) | |
1956 | { | |
1957 | // Upsilon y | |
1958 | // PbPb 2.76 TeV, 7th centrality bin 50-60 % | |
1959 | // | |
1960 | return YUpsilonPbPb2760ShFdummy(*px, 7) * YUpsilonPP2760(px, dummy); | |
1961 | } | |
1962 | ||
1963 | Double_t AliGenMUONlib::YUpsilonPbPb2760c8(const Double_t *px, const Double_t *dummy) | |
1964 | { | |
1965 | // Upsilon y | |
1966 | // PbPb 2.76 TeV, 8th centrality bin 60-70 % | |
1967 | // | |
1968 | return YUpsilonPbPb2760ShFdummy(*px, 8) * YUpsilonPP2760(px, dummy); | |
1969 | } | |
1970 | ||
1971 | Double_t AliGenMUONlib::YUpsilonPbPb2760c9(const Double_t *px, const Double_t *dummy) | |
1972 | { | |
1973 | // Upsilon y | |
1974 | // PbPb 2.76 TeV, 9th centrality bin 70-80 % | |
1975 | // | |
1976 | return YUpsilonPbPb2760ShFdummy(*px, 9) * YUpsilonPP2760(px, dummy); | |
1977 | } | |
1978 | ||
1979 | Double_t AliGenMUONlib::YUpsilonPbPb2760c10(const Double_t *px, const Double_t *dummy) | |
1980 | { | |
1981 | // Upsilon y | |
1982 | // PbPb 2.76 TeV, 10th centrality bin 80-90 % | |
1983 | // | |
1984 | return YUpsilonPbPb2760ShFdummy(*px, 10) * YUpsilonPP2760(px, dummy); | |
1985 | } | |
1986 | ||
1987 | Double_t AliGenMUONlib::YUpsilonPbPb2760c11(const Double_t *px, const Double_t *dummy) | |
1988 | { | |
1989 | // Upsilon y | |
1990 | // PbPb 2.76 TeV, 11th centrality bin 90-100 % | |
1991 | // | |
1992 | return YUpsilonPbPb2760ShFdummy(*px, 11) * YUpsilonPP2760(px, dummy); | |
1993 | } | |
1994 | ||
1995 | Double_t AliGenMUONlib::YUpsilonPP8800dummy(Double_t px) | |
1996 | { | |
1997 | return AliGenMUONlib::YUpsilonPP8800(&px, (Double_t*) 0); | |
1998 | } | |
1999 | ||
2000 | Double_t AliGenMUONlib::YUpsilonPPb8800ShFdummy(Double_t x, Int_t n) | |
2001 | { | |
2002 | // Upsilon shadowing factor vs y for pPb min. bias and 4 centr. bins | |
2003 | // | |
2004 | // pPb 8.8 TeV, for EKS98, minimum bias shadowing factor = 0.89 in 4pi | |
2005 | // | |
2006 | const Double_t f[5] = {1, 1.33, 1.05, 0.67, 0.23}; | |
2007 | const Double_t c[7] = {8.6581e-01, 4.6111e-02, 7.6911e-03, 8.7313e-04, | |
2008 | -1.4700e-04,-5.0975e-05,-3.5718e-06}; | |
2009 | Double_t y; | |
2010 | Int_t j; | |
2011 | y = c[j = 6]; | |
2012 | while (j > 0) y = y * x + c[--j]; | |
2013 | if(y<0) y=0; | |
2014 | // | |
2015 | return 1 +(y-1)*f[n]; | |
2016 | } | |
2017 | ||
2018 | Double_t AliGenMUONlib::YUpsilonPPb8800(const Double_t *px, const Double_t */*dummy*/) | |
2019 | { | |
2020 | // Upsilon y | |
2021 | // pPb 8.8 TeV, minimum bias 0-100 % | |
2022 | // | |
2023 | Double_t x = px[0] + 0.47; // rapidity shift | |
2024 | return YUpsilonPPb8800ShFdummy(x, 0) * YUpsilonPP8800dummy(x); | |
2025 | } | |
2026 | ||
2027 | Double_t AliGenMUONlib::YUpsilonPPb8800c1(const Double_t *px, const Double_t */*dummy*/) | |
2028 | { | |
2029 | // Upsilon y | |
2030 | // pPb 8.8 TeV, 1st centrality bin 0-20 % | |
2031 | // | |
2032 | Double_t x = px[0] + 0.47; // rapidity shift | |
2033 | return YUpsilonPPb8800ShFdummy(x, 1) * YUpsilonPP8800dummy(x); | |
2034 | } | |
2035 | ||
2036 | Double_t AliGenMUONlib::YUpsilonPPb8800c2(const Double_t *px, const Double_t */*dummy*/) | |
2037 | { | |
2038 | // Upsilon y | |
2039 | // pPb 8.8 TeV, 2nd centrality bin 20-40 % | |
2040 | // | |
2041 | Double_t x = px[0] + 0.47; // rapidity shift | |
2042 | return YUpsilonPPb8800ShFdummy(x, 2) * YUpsilonPP8800dummy(x); | |
2043 | } | |
2044 | ||
2045 | Double_t AliGenMUONlib::YUpsilonPPb8800c3(const Double_t *px, const Double_t */*dummy*/) | |
2046 | { | |
2047 | // Upsilon y | |
2048 | // pPb 8.8 TeV, 3rd centrality bin 40-60 % | |
2049 | // | |
2050 | Double_t x = px[0] + 0.47; // rapidity shift | |
2051 | return YUpsilonPPb8800ShFdummy(x, 3) * YUpsilonPP8800dummy(x); | |
2052 | } | |
2053 | ||
2054 | Double_t AliGenMUONlib::YUpsilonPPb8800c4(const Double_t *px, const Double_t */*dummy*/) | |
2055 | { | |
2056 | // Upsilon y | |
2057 | // pPb 8.8 TeV, 4th centrality bin 60-100 % | |
2058 | // | |
2059 | Double_t x = px[0] + 0.47; // rapidity shift | |
2060 | return YUpsilonPPb8800ShFdummy(x, 4) * YUpsilonPP8800dummy(x); | |
2061 | } | |
2062 | ||
2063 | Double_t AliGenMUONlib::YUpsilonPbP8800(const Double_t *px, const Double_t */*dummy*/) | |
2064 | { | |
2065 | // Upsilon y | |
2066 | // Pbp 8.8 TeV, minimum bias 0-100 % | |
2067 | // | |
2068 | Double_t x = -px[0] + 0.47; // rapidity shift | |
2069 | return YUpsilonPPb8800ShFdummy(x, 0) * YUpsilonPP8800dummy(x); | |
2070 | } | |
2071 | ||
2072 | Double_t AliGenMUONlib::YUpsilonPbP8800c1(const Double_t *px, const Double_t */*dummy*/) | |
2073 | { | |
2074 | // Upsilon y | |
2075 | // Pbp 8.8 TeV, 1st centrality bin 0-20 % | |
2076 | // | |
2077 | Double_t x = -px[0] + 0.47; // rapidity shift | |
2078 | return YUpsilonPPb8800ShFdummy(x, 1) * YUpsilonPP8800dummy(x); | |
2079 | } | |
2080 | ||
2081 | Double_t AliGenMUONlib::YUpsilonPbP8800c2(const Double_t *px, const Double_t */*dummy*/) | |
2082 | { | |
2083 | // Upsilon y | |
2084 | // Pbp 8.8 TeV, 2nd centrality bin 20-40 % | |
2085 | // | |
2086 | Double_t x = -px[0] + 0.47; // rapidity shift | |
2087 | return YUpsilonPPb8800ShFdummy(x, 2) * YUpsilonPP8800dummy(x); | |
2088 | } | |
2089 | ||
2090 | Double_t AliGenMUONlib::YUpsilonPbP8800c3(const Double_t *px, const Double_t */*dummy*/) | |
2091 | { | |
2092 | // Upsilon y | |
2093 | // Pbp 8.8 TeV, 3rd centrality bin 40-60 % | |
2094 | // | |
2095 | Double_t x = -px[0] + 0.47; // rapidity shift | |
2096 | return YUpsilonPPb8800ShFdummy(x, 3) * YUpsilonPP8800dummy(x); | |
2097 | } | |
2098 | ||
2099 | Double_t AliGenMUONlib::YUpsilonPbP8800c4(const Double_t *px, const Double_t */*dummy*/) | |
2100 | { | |
2101 | // Upsilon y | |
2102 | // Pbp 8.8 TeV, 4th centrality bin 60-100 % | |
2103 | // | |
2104 | Double_t x = -px[0] + 0.47; // rapidity shift | |
2105 | return YUpsilonPPb8800ShFdummy(x, 4) * YUpsilonPP8800dummy(x); | |
2106 | } | |
2107 | ||
75e0cc59 | 2108 | Double_t AliGenMUONlib::YUpsilon(const Double_t *py, const Double_t */*dummy*/) |
fe4da5cc | 2109 | { |
d90f80fd | 2110 | // Upsilon y |
2111 | const Double_t ky0 = 3.; | |
2112 | const Double_t kb=1.; | |
fe4da5cc | 2113 | Double_t yu; |
2114 | Double_t y=TMath::Abs(*py); | |
2115 | // | |
d90f80fd | 2116 | if (y < ky0) |
2117 | yu=kb; | |
fe4da5cc | 2118 | else |
d90f80fd | 2119 | yu=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); |
fe4da5cc | 2120 | return yu; |
2121 | } | |
05932df6 | 2122 | |
2123 | ||
75e0cc59 | 2124 | Double_t AliGenMUONlib::YUpsilonPbPb( const Double_t *px, const Double_t */*dummy*/) |
05932df6 | 2125 | { |
2126 | ||
2127 | // | |
2128 | // Upsilon y | |
2129 | // | |
2130 | // | |
2131 | // R. Vogt 2002 | |
2132 | // PbPb 5.5 TeV | |
2133 | // MRST HO | |
2134 | // mc = 1.4 GeV, pt-kick 1 GeV | |
2135 | // | |
2136 | ||
1af7144e | 2137 | Double_t c[7] = {3.40036e-01, -3.98882e-07, -4.48398e-03, 8.46411e-08, -6.10854e-04, |
2138 | -2.99753e-09, 1.28895e-05}; | |
b33adf51 | 2139 | Double_t x = TMath::Abs(px[0]); |
2140 | if (x > 5.55) return 0.; | |
1af7144e | 2141 | Int_t j; |
2142 | Double_t y = c[j = 6]; | |
2143 | while (j > 0) y = y * x +c[--j]; | |
2144 | return y; | |
05932df6 | 2145 | } |
2146 | ||
75e0cc59 | 2147 | Double_t AliGenMUONlib::YUpsilonCDFscaled( const Double_t *px, const Double_t *dummy) |
0e137c25 | 2148 | { |
2149 | // Upsilon y | |
2150 | return AliGenMUONlib::YUpsilonPbPb(px, dummy); | |
2151 | ||
4ca8d070 | 2152 | } |
9ff13849 | 2153 | |
75e0cc59 | 2154 | Double_t AliGenMUONlib::YUpsilonCDFscaledPP( const Double_t *px, const Double_t *dummy) |
9ff13849 | 2155 | { |
2156 | // Upsilon y | |
2157 | return AliGenMUONlib::YUpsilonPP(px, dummy); | |
2158 | ||
2159 | } | |
2160 | ||
75e0cc59 | 2161 | Double_t AliGenMUONlib::YUpsilonFlat( const Double_t */*px*/, const Double_t */*dummy*/) |
4ca8d070 | 2162 | { |
2163 | // Upsilon y | |
2164 | return 1.; | |
2165 | ||
0e137c25 | 2166 | } |
2167 | ||
b33adf51 | 2168 | Double_t AliGenMUONlib::YUpsilonCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) |
2169 | { | |
b33adf51 | 2170 | // Upsilon y |
2171 | // | |
2172 | // pp 10 TeV | |
2173 | // scaled from YUpsilonPP(14 TeV) using 10 TeV / 14 TeV ratio of y-spectra in LO pQCD. | |
2174 | // see S.Grigoryan, PWG3 Meeting, 27th Oct 2008 | |
2175 | // | |
9fd56238 | 2176 | Double_t c[4] = {1., -2.17877e-02, -6.52830e-04, 1.40578e-05}; |
2177 | Double_t x = TMath::Abs(px[0]); | |
2178 | if (x > 6.1) return 0.; | |
2179 | Int_t j; | |
2180 | Double_t y = c[j = 3]; | |
2181 | while (j > 0) y = y * x*x +c[--j]; | |
2182 | return y; | |
2183 | } | |
2184 | ||
2185 | Double_t AliGenMUONlib::YUpsilonCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) | |
2186 | { | |
2187 | // Upsilon y | |
2188 | // | |
2189 | // pp 8.8 TeV | |
2190 | // rescaling of YUpsilonPP(14 TeV) using 8.8 TeV / 14 TeV ratio of y-spectra in LO QCD | |
2191 | // | |
2192 | Double_t c[4] = {1., -2.37621e-02, -6.29610e-04, 1.47976e-05}; | |
b33adf51 | 2193 | Double_t x = TMath::Abs(px[0]); |
2194 | if (x > 6.1) return 0.; | |
2195 | Int_t j; | |
2196 | Double_t y = c[j = 3]; | |
2197 | while (j > 0) y = y * x*x +c[--j]; | |
2198 | return y; | |
2199 | } | |
2200 | ||
9fd56238 | 2201 | Double_t AliGenMUONlib::YUpsilonCDFscaledPP9dummy(Double_t px) |
2202 | { | |
2203 | return AliGenMUONlib::YUpsilonCDFscaledPP9(&px, (Double_t*) 0); | |
2204 | } | |
2205 | ||
2206 | Double_t AliGenMUONlib::YUpsilonCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) | |
2207 | { | |
2208 | // Upsilon y | |
2209 | // | |
2210 | // pp 7 TeV | |
2211 | // scaled from YUpsilonPP(14 TeV) using 7 TeV / 14 TeV ratio of y-spectra in LO pQCD. | |
2212 | // | |
2213 | Double_t c[4] = {1., -2.61009e-02, -6.83937e-04, 1.78451e-05}; | |
2214 | Double_t x = TMath::Abs(px[0]); | |
2215 | if (x > 6.0) return 0.; | |
2216 | Int_t j; | |
2217 | Double_t y = c[j = 3]; | |
2218 | while (j > 0) y = y * x*x +c[--j]; | |
2219 | return y; | |
2220 | } | |
2221 | ||
2222 | Double_t AliGenMUONlib::YUpsilonCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) | |
2223 | { | |
2224 | // Upsilon y | |
2225 | // | |
2226 | // pp 3.94 TeV | |
2227 | // rescaling of YUpsilonPP(14 TeV) using 3.94 TeV / 14 TeV ratio of y-spectra in LO QCD | |
2228 | // | |
2229 | Double_t c[4] = {1., -3.91924e-02, -4.26184e-04, 2.10914e-05}; | |
2230 | Double_t x = TMath::Abs(px[0]); | |
2231 | if (x > 5.7) return 0.; | |
2232 | Int_t j; | |
2233 | Double_t y = c[j = 3]; | |
2234 | while (j > 0) y = y * x*x +c[--j]; | |
2235 | ||
2236 | return y; | |
2237 | } | |
2238 | ||
75e0cc59 | 2239 | Double_t AliGenMUONlib::YUpsilonPP( const Double_t *px, const Double_t */*dummy*/) |
bb6e81ac | 2240 | { |
2241 | ||
2242 | // | |
2243 | // Upsilon y | |
2244 | // | |
2245 | // | |
2246 | // R. Vogt 2002 | |
2247 | // p p 14. TeV | |
2248 | // MRST HO | |
2249 | // mc = 1.4 GeV, pt-kick 1 GeV | |
2250 | // | |
2251 | Double_t c[7] = {8.91936e-01, -6.46645e-07, -1.52774e-02, 4.28677e-08, -7.01517e-04, | |
2252 | -6.20539e-10, 1.29943e-05}; | |
b33adf51 | 2253 | Double_t x = TMath::Abs(px[0]); |
2254 | if (x > 6.2) return 0.; | |
bb6e81ac | 2255 | Int_t j; |
2256 | Double_t y = c[j = 6]; | |
2257 | while (j > 0) y = y * x +c[--j]; | |
2258 | return y; | |
2259 | } | |
2260 | ||
9fd56238 | 2261 | Double_t AliGenMUONlib::YUpsilonCDFscaledPPb9( const Double_t *px, const Double_t */*dummy*/) |
2262 | { | |
2263 | // Upsilon y | |
2264 | // | |
7455632e | 2265 | // pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89 |
9fd56238 | 2266 | // |
2267 | Double_t c[7] = {8.71829e-01, 4.77467e-02, 8.09671e-03, 6.45294e-04, -2.15730e-04, | |
2268 | -4.67538e-05,-2.11683e-06}; | |
2269 | Double_t y; | |
2270 | Double_t x = px[0] + 0.47; // rapidity shift | |
2271 | Int_t j; | |
2272 | y = c[j = 6]; | |
2273 | while (j > 0) y = y * x + c[--j]; | |
2274 | if(y<0) y=0; | |
2275 | ||
2276 | return y * AliGenMUONlib::YUpsilonCDFscaledPP9dummy(x); | |
2277 | } | |
2278 | ||
2279 | Double_t AliGenMUONlib::YUpsilonCDFscaledPbP9( const Double_t *px, const Double_t */*dummy*/) | |
2280 | { | |
2281 | // Upsilon y | |
2282 | // | |
7455632e | 2283 | // Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.89 |
9fd56238 | 2284 | // |
2285 | Double_t c[7] = {8.71829e-01, 4.77467e-02, 8.09671e-03, 6.45294e-04, -2.15730e-04, | |
2286 | -4.67538e-05,-2.11683e-06}; | |
2287 | Double_t y; | |
2288 | Double_t x = -px[0] + 0.47; // rapidity shift | |
2289 | Int_t j; | |
2290 | y = c[j = 6]; | |
2291 | while (j > 0) y = y * x + c[--j]; | |
2292 | if(y<0) y=0; | |
2293 | ||
2294 | return y * AliGenMUONlib::YUpsilonCDFscaledPP9dummy(x); | |
2295 | } | |
2296 | ||
2297 | Double_t AliGenMUONlib::YUpsilonCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) | |
2298 | { | |
2299 | // Upsilon y | |
2300 | // | |
2301 | // PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.85 | |
2302 | // | |
2303 | Double_t c[4] = {8.27837e-01, 1.70115e-02, -1.26046e-03, 1.52091e-05}; | |
2304 | Double_t x = px[0]*px[0]; | |
2305 | Double_t y; | |
2306 | Int_t j; | |
2307 | y = c[j = 3]; | |
2308 | while (j > 0) y = y * x + c[--j]; | |
2309 | if(y<0) y=0; | |
2310 | ||
2311 | return y * AliGenMUONlib::YUpsilonCDFscaledPP4(px,dummy); | |
2312 | } | |
2313 | ||
2314 | ||
fe4da5cc | 2315 | // particle composition |
2316 | // | |
65fb704d | 2317 | Int_t AliGenMUONlib::IpUpsilon(TRandom *) |
fe4da5cc | 2318 | { |
d90f80fd | 2319 | // y composition |
88cb7938 | 2320 | return 553; |
fe4da5cc | 2321 | } |
88e5db43 | 2322 | Int_t AliGenMUONlib::IpUpsilonP(TRandom *) |
2323 | { | |
2324 | // y composition | |
2325 | return 100553; | |
2326 | } | |
2327 | Int_t AliGenMUONlib::IpUpsilonPP(TRandom *) | |
2328 | { | |
2329 | // y composition | |
2330 | return 200553; | |
2331 | } | |
0ad09590 | 2332 | Int_t AliGenMUONlib::IpUpsilonFamily(TRandom *) |
2333 | { | |
2334 | // y composition | |
2335 | Int_t ip; | |
2336 | Float_t r = gRandom->Rndm(); | |
2337 | ||
2338 | if (r < 0.712) { | |
2339 | ip = 553; | |
2340 | } else if (r < 0.896) { | |
2341 | ip = 100553; | |
2342 | } else { | |
2343 | ip = 200553; | |
2344 | } | |
2345 | return ip; | |
2346 | } | |
fe4da5cc | 2347 | |
88e5db43 | 2348 | |
fe4da5cc | 2349 | // |
2350 | // Phi | |
2351 | // | |
2352 | // | |
2353 | // pt-distribution (by scaling of pion distribution) | |
2354 | //____________________________________________________________ | |
75e0cc59 | 2355 | Double_t AliGenMUONlib::PtPhi( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 2356 | { |
d90f80fd | 2357 | // Phi pT |
a4f206bf | 2358 | return PtScal(*px,7); |
fe4da5cc | 2359 | } |
2360 | // y-distribution | |
75e0cc59 | 2361 | Double_t AliGenMUONlib::YPhi( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 2362 | { |
d90f80fd | 2363 | // Phi y |
2364 | Double_t *dum=0; | |
2365 | return YJpsi(px,dum); | |
fe4da5cc | 2366 | } |
2367 | // particle composition | |
2368 | // | |
65fb704d | 2369 | Int_t AliGenMUONlib::IpPhi(TRandom *) |
fe4da5cc | 2370 | { |
d90f80fd | 2371 | // Phi composition |
89512a3b | 2372 | return 333; |
2373 | } | |
2374 | ||
2375 | // | |
2376 | // omega | |
2377 | // | |
2378 | // | |
2379 | // pt-distribution (by scaling of pion distribution) | |
2380 | //____________________________________________________________ | |
75e0cc59 | 2381 | Double_t AliGenMUONlib::PtOmega( const Double_t *px, const Double_t */*dummy*/) |
89512a3b | 2382 | { |
2383 | // Omega pT | |
a4f206bf | 2384 | return PtScal(*px,5); |
89512a3b | 2385 | } |
2386 | // y-distribution | |
75e0cc59 | 2387 | Double_t AliGenMUONlib::YOmega( const Double_t *px, const Double_t */*dummy*/) |
89512a3b | 2388 | { |
2389 | // Omega y | |
2390 | Double_t *dum=0; | |
2391 | return YJpsi(px,dum); | |
2392 | } | |
2393 | // particle composition | |
2394 | // | |
2395 | Int_t AliGenMUONlib::IpOmega(TRandom *) | |
2396 | { | |
2397 | // Omega composition | |
2398 | return 223; | |
2399 | } | |
2400 | ||
2401 | ||
2402 | // | |
2403 | // Eta | |
2404 | // | |
2405 | // | |
2406 | // pt-distribution (by scaling of pion distribution) | |
2407 | //____________________________________________________________ | |
75e0cc59 | 2408 | Double_t AliGenMUONlib::PtEta( const Double_t *px, const Double_t */*dummy*/) |
89512a3b | 2409 | { |
2410 | // Eta pT | |
a4f206bf | 2411 | return PtScal(*px,3); |
89512a3b | 2412 | } |
2413 | // y-distribution | |
75e0cc59 | 2414 | Double_t AliGenMUONlib::YEta( const Double_t *px, const Double_t */*dummy*/) |
89512a3b | 2415 | { |
2416 | // Eta y | |
2417 | Double_t *dum=0; | |
2418 | return YJpsi(px,dum); | |
2419 | } | |
2420 | // particle composition | |
2421 | // | |
2422 | Int_t AliGenMUONlib::IpEta(TRandom *) | |
2423 | { | |
2424 | // Eta composition | |
2425 | return 221; | |
fe4da5cc | 2426 | } |
2427 | ||
2428 | // | |
2429 | // Charm | |
2430 | // | |
2431 | // | |
2432 | // pt-distribution | |
2433 | //____________________________________________________________ | |
75e0cc59 | 2434 | Double_t AliGenMUONlib::PtCharm( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 2435 | { |
d90f80fd | 2436 | // Charm pT |
bd0276a8 | 2437 | const Double_t kpt0 = 2.25; |
2438 | const Double_t kxn = 3.17; | |
fe4da5cc | 2439 | Double_t x=*px; |
2440 | // | |
bd0276a8 | 2441 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); |
2442 | return x/TMath::Power(pass1,kxn); | |
2443 | } | |
2444 | ||
75e0cc59 | 2445 | Double_t AliGenMUONlib::PtCharmCentral( const Double_t *px, const Double_t */*dummy*/) |
bd0276a8 | 2446 | { |
2447 | // Charm pT | |
2448 | const Double_t kpt0 = 2.12; | |
2449 | const Double_t kxn = 2.78; | |
bd0276a8 | 2450 | Double_t x=*px; |
2451 | // | |
2452 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
d90f80fd | 2453 | return x/TMath::Power(pass1,kxn); |
fe4da5cc | 2454 | } |
75e0cc59 | 2455 | Double_t AliGenMUONlib::PtCharmF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2456 | { |
2457 | // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: | |
2458 | // PtCharmFiMjSkPP = PtCharmF0M0S0PP * (dN(i,j,k)/dpt / dN(0,0,0)/dpt)_MNR | |
2459 | // i=0,1,2; j=0,1,2; k=0,1,...,6 | |
2460 | // dN(i,j,k)/dpt - spectra obtained by A.Dainese (hep-ph/0601164, p.88; | |
2461 | // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) | |
2462 | // calculations for the following inputs: | |
2463 | // Peterson fragmentation function (F) with \epsilon_c = 0.02, 0.002 & 0.11 | |
2464 | // for i=0,1 & 2 respectively; quark mass (M) of 1.5, 1.3 & 1.7 GeV | |
2465 | // for j=0,1 & 2 respectively; | |
2466 | // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) | |
2467 | // with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 | |
2468 | // for k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set | |
2469 | // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). | |
2470 | // June 2008, Smbat.Grigoryan@cern.ch | |
2471 | ||
2472 | // Charm pT | |
2473 | // Pythia6.214 (kCharmppMNRwmi, PDF = CTEQ5L, quark mass = 1.2 GeV, PtHard > 2.76 GeV/c) | |
2474 | // for pp collisions at 14 TeV with one c-cbar pair per event. | |
2475 | // Corresponding NLO total cross section is 5.68 mb | |
2476 | ||
2477 | ||
2478 | const Double_t kpt0 = 2.2930; | |
2479 | const Double_t kxn = 3.1196; | |
2480 | Double_t c[3]={-5.2180e-01,1.8753e-01,2.8669e-02}; | |
2481 | Double_t x=*px; | |
2482 | // | |
2483 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2484 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2485 | } | |
75e0cc59 | 2486 | Double_t AliGenMUONlib::PtCharmF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2487 | { |
2488 | // Charm pT | |
2489 | // Corresponding NLO total cross section is 6.06 mb | |
2490 | const Double_t kpt0 = 2.8669; | |
2491 | const Double_t kxn = 3.1044; | |
2492 | Double_t c[3]={-4.6714e-01,1.5005e-01,4.5003e-02}; | |
2493 | Double_t x=*px; | |
2494 | // | |
2495 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2496 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2497 | } | |
75e0cc59 | 2498 | Double_t AliGenMUONlib::PtCharmF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2499 | { |
2500 | // Charm pT | |
2501 | // Corresponding NLO total cross section is 6.06 mb | |
2502 | const Double_t kpt0 = 1.8361; | |
2503 | const Double_t kxn = 3.2966; | |
2504 | Double_t c[3]={-6.1550e-01,2.6498e-01,1.0728e-02}; | |
2505 | Double_t x=*px; | |
2506 | // | |
2507 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2508 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2509 | } | |
75e0cc59 | 2510 | Double_t AliGenMUONlib::PtCharmF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2511 | { |
2512 | // Charm pT | |
2513 | // Corresponding NLO total cross section is 7.69 mb | |
2514 | const Double_t kpt0 = 2.1280; | |
2515 | const Double_t kxn = 3.1397; | |
2516 | Double_t c[3]={-5.4021e-01,2.0944e-01,2.5211e-02}; | |
2517 | Double_t x=*px; | |
2518 | // | |
2519 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2520 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2521 | } | |
75e0cc59 | 2522 | Double_t AliGenMUONlib::PtCharmF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2523 | { |
2524 | // Charm pT | |
2525 | // Corresponding NLO total cross section is 4.81 mb | |
2526 | const Double_t kpt0 = 2.4579; | |
2527 | const Double_t kxn = 3.1095; | |
2528 | Double_t c[3]={-5.1497e-01,1.7532e-01,3.2429e-02}; | |
2529 | Double_t x=*px; | |
2530 | // | |
2531 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2532 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2533 | } | |
75e0cc59 | 2534 | Double_t AliGenMUONlib::PtCharmF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2535 | { |
2536 | // Charm pT | |
2537 | // Corresponding NLO total cross section is 14.09 mb | |
2538 | const Double_t kpt0 = 2.1272; | |
2539 | const Double_t kxn = 3.1904; | |
2540 | Double_t c[3]={-4.6088e-01,2.1918e-01,2.3055e-02}; | |
2541 | Double_t x=*px; | |
2542 | // | |
2543 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2544 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2545 | } | |
75e0cc59 | 2546 | Double_t AliGenMUONlib::PtCharmF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2547 | { |
2548 | // Charm pT | |
2549 | // Corresponding NLO total cross section is 1.52 mb | |
2550 | const Double_t kpt0 = 2.8159; | |
2551 | const Double_t kxn = 3.0857; | |
2552 | Double_t c[3]={-6.4691e-01,2.0289e-01,2.4922e-02}; | |
2553 | Double_t x=*px; | |
2554 | // | |
2555 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2556 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2557 | } | |
75e0cc59 | 2558 | Double_t AliGenMUONlib::PtCharmF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2559 | { |
2560 | // Charm pT | |
2561 | // Corresponding NLO total cross section is 3.67 mb | |
2562 | const Double_t kpt0 = 2.7297; | |
2563 | const Double_t kxn = 3.3019; | |
2564 | Double_t c[3]={-6.2216e-01,1.9031e-01,1.5341e-02}; | |
2565 | Double_t x=*px; | |
2566 | // | |
2567 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2568 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2569 | } | |
75e0cc59 | 2570 | Double_t AliGenMUONlib::PtCharmF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2571 | { |
2572 | // Charm pT | |
2573 | // Corresponding NLO total cross section is 3.38 mb | |
2574 | const Double_t kpt0 = 2.3894; | |
2575 | const Double_t kxn = 3.1075; | |
2576 | Double_t c[3]={-4.9742e-01,1.7032e-01,2.5994e-02}; | |
2577 | Double_t x=*px; | |
2578 | // | |
2579 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2580 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2581 | } | |
75e0cc59 | 2582 | Double_t AliGenMUONlib::PtCharmF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2583 | { |
2584 | // Charm pT | |
2585 | // Corresponding NLO total cross section is 10.37 mb | |
2586 | const Double_t kpt0 = 2.0187; | |
2587 | const Double_t kxn = 3.3011; | |
2588 | Double_t c[3]={-3.9869e-01,2.9248e-01,1.1763e-02}; | |
2589 | Double_t x=*px; | |
2590 | // | |
2591 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2592 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2593 | } | |
75e0cc59 | 2594 | Double_t AliGenMUONlib::PtCharmF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2595 | { |
2596 | // Charm pT | |
2597 | // Corresponding NLO total cross section is 7.22 mb | |
2598 | const Double_t kpt0 = 2.1089; | |
2599 | const Double_t kxn = 3.1848; | |
2600 | Double_t c[3]={-4.6275e-01,1.8114e-01,2.1363e-02}; | |
2601 | Double_t x=*px; | |
2602 | // | |
2603 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2604 | return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); | |
2605 | } | |
2606 | ||
fe4da5cc | 2607 | // y-distribution |
75e0cc59 | 2608 | Double_t AliGenMUONlib::YCharm( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 2609 | { |
ec772ba2 | 2610 | // Charm y :: Carrer & Dainese : ALICE-INT-2003-019 v.3 (hep-ph/0311225) |
2611 | // Pythia tuned to reproduce the distribution given by the HVQMNR program based on NLO calculations (pQCD) | |
2612 | // shadowing + kt broadening | |
2613 | ||
2614 | Double_t x=px[0]; | |
2615 | Double_t c[2]={-2.42985e-03,-2.31001e-04}; | |
2616 | Double_t y=1+(c[0]*TMath::Power(x,2))+(c[1]*TMath::Power(x,4)); | |
2617 | Double_t ycharm; | |
2618 | ||
2619 | if (TMath::Abs(x)>8) { | |
2620 | ycharm=0.; | |
2621 | } | |
2622 | else { | |
2623 | ycharm=TMath::Power(y,3); | |
2624 | } | |
2625 | ||
2626 | return ycharm; | |
fe4da5cc | 2627 | } |
75e0cc59 | 2628 | Double_t AliGenMUONlib::YCharmF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2629 | { |
2630 | // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: | |
2631 | // YCharmFiMjSkPP = YCharmF0M0S0PP * (dN(i,j,k)/dy / dN(0,0,0)/dy)_MNR | |
2632 | // i=0,1,2; j=0,1,2; k=0,1,...,6 | |
2633 | // dN(i,j,k)/dy - spectra obtained by A.Dainese (hep-ph/0601164, p.88; | |
2634 | // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) | |
2635 | // calculations for the following inputs: | |
2636 | // Peterson fragmentation function (F) with \epsilon_c = 0.02, 0.002 & 0.11 | |
2637 | // for i=0,1 & 2 respectively; quark mass (M) of 1.5, 1.3 & 1.7 GeV | |
2638 | // for j=0,1 & 2 respectively; | |
2639 | // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) | |
2640 | // with a/b = 1/1,1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 for | |
2641 | // k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set | |
2642 | // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). | |
2643 | // June 2008, Smbat.Grigoryan@cern.ch | |
2644 | ||
2645 | // Charm y | |
2646 | // Pythia6.214 (kCharmppMNRwmi, PDF = CTEQ5L, quark mass = 1.2 GeV, PtHard > 2.76 GeV/c) | |
2647 | // for pp collisions at 14 TeV with one c-cbar pair per event. | |
2648 | // Corresponding NLO total cross section is 5.68 mb | |
2649 | ||
2650 | Double_t x=px[0]; | |
2651 | Double_t c[2]={7.0909e-03,6.1967e-05}; | |
2652 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2653 | Double_t ycharm; | |
2654 | ||
2655 | if (TMath::Abs(x)>9) { | |
2656 | ycharm=0.; | |
2657 | } | |
2658 | else { | |
2659 | ycharm=TMath::Power(y,3); | |
2660 | } | |
2661 | ||
2662 | return ycharm; | |
2663 | } | |
75e0cc59 | 2664 | Double_t AliGenMUONlib::YCharmF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2665 | { |
2666 | // Charm y | |
2667 | // Corresponding NLO total cross section is 6.06 mb | |
2668 | Double_t x=px[0]; | |
2669 | Double_t c[2]={6.9707e-03,6.0971e-05}; | |
2670 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2671 | Double_t ycharm; | |
2672 | ||
2673 | if (TMath::Abs(x)>9) { | |
2674 | ycharm=0.; | |
2675 | } | |
2676 | else { | |
2677 | ycharm=TMath::Power(y,3); | |
2678 | } | |
2679 | ||
2680 | return ycharm; | |
2681 | } | |
75e0cc59 | 2682 | Double_t AliGenMUONlib::YCharmF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2683 | { |
2684 | // Charm y | |
2685 | // Corresponding NLO total cross section is 6.06 mb | |
2686 | Double_t x=px[0]; | |
2687 | Double_t c[2]={7.1687e-03,6.5303e-05}; | |
2688 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2689 | Double_t ycharm; | |
2690 | ||
2691 | if (TMath::Abs(x)>9) { | |
2692 | ycharm=0.; | |
2693 | } | |
2694 | else { | |
2695 | ycharm=TMath::Power(y,3); | |
2696 | } | |
2697 | ||
2698 | return ycharm; | |
2699 | } | |
75e0cc59 | 2700 | Double_t AliGenMUONlib::YCharmF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2701 | { |
2702 | // Charm y | |
2703 | // Corresponding NLO total cross section is 7.69 mb | |
2704 | Double_t x=px[0]; | |
2705 | Double_t c[2]={5.9090e-03,7.1854e-05}; | |
2706 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2707 | Double_t ycharm; | |
2708 | ||
2709 | if (TMath::Abs(x)>9) { | |
2710 | ycharm=0.; | |
2711 | } | |
2712 | else { | |
2713 | ycharm=TMath::Power(y,3); | |
2714 | } | |
2715 | ||
2716 | return ycharm; | |
2717 | } | |
75e0cc59 | 2718 | Double_t AliGenMUONlib::YCharmF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2719 | { |
2720 | // Charm y | |
2721 | // Corresponding NLO total cross section is 4.81 mb | |
2722 | Double_t x=px[0]; | |
2723 | Double_t c[2]={8.0882e-03,5.5872e-05}; | |
2724 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2725 | Double_t ycharm; | |
2726 | ||
2727 | if (TMath::Abs(x)>9) { | |
2728 | ycharm=0.; | |
2729 | } | |
2730 | else { | |
2731 | ycharm=TMath::Power(y,3); | |
2732 | } | |
2733 | ||
2734 | return ycharm; | |
2735 | } | |
75e0cc59 | 2736 | Double_t AliGenMUONlib::YCharmF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2737 | { |
2738 | // Charm y | |
2739 | // Corresponding NLO total cross section is 14.09 mb | |
2740 | Double_t x=px[0]; | |
2741 | Double_t c[2]={7.2520e-03,6.2691e-05}; | |
2742 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2743 | Double_t ycharm; | |
2744 | ||
2745 | if (TMath::Abs(x)>9) { | |
2746 | ycharm=0.; | |
2747 | } | |
2748 | else { | |
2749 | ycharm=TMath::Power(y,3); | |
2750 | } | |
2751 | ||
2752 | return ycharm; | |
2753 | } | |
75e0cc59 | 2754 | Double_t AliGenMUONlib::YCharmF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2755 | { |
2756 | // Charm y | |
2757 | // Corresponding NLO total cross section is 1.52 mb | |
2758 | Double_t x=px[0]; | |
2759 | Double_t c[2]={1.1040e-04,1.4498e-04}; | |
2760 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2761 | Double_t ycharm; | |
2762 | ||
2763 | if (TMath::Abs(x)>9) { | |
2764 | ycharm=0.; | |
2765 | } | |
2766 | else { | |
2767 | ycharm=TMath::Power(y,3); | |
2768 | } | |
2769 | ||
2770 | return ycharm; | |
2771 | } | |
75e0cc59 | 2772 | Double_t AliGenMUONlib::YCharmF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2773 | { |
2774 | // Charm y | |
2775 | // Corresponding NLO total cross section is 3.67 mb | |
2776 | Double_t x=px[0]; | |
2777 | Double_t c[2]={-3.1328e-03,1.8270e-04}; | |
2778 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2779 | Double_t ycharm; | |
2780 | ||
2781 | if (TMath::Abs(x)>9) { | |
2782 | ycharm=0.; | |
2783 | } | |
2784 | else { | |
2785 | ycharm=TMath::Power(y,3); | |
2786 | } | |
2787 | ||
2788 | return ycharm; | |
2789 | } | |
75e0cc59 | 2790 | Double_t AliGenMUONlib::YCharmF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2791 | { |
2792 | // Charm y | |
2793 | // Corresponding NLO total cross section is 3.38 mb | |
2794 | Double_t x=px[0]; | |
2795 | Double_t c[2]={7.0865e-03,6.2532e-05}; | |
2796 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2797 | Double_t ycharm; | |
2798 | ||
2799 | if (TMath::Abs(x)>9) { | |
2800 | ycharm=0.; | |
2801 | } | |
2802 | else { | |
2803 | ycharm=TMath::Power(y,3); | |
2804 | } | |
2805 | ||
2806 | return ycharm; | |
2807 | } | |
75e0cc59 | 2808 | Double_t AliGenMUONlib::YCharmF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2809 | { |
2810 | // Charm y | |
2811 | // Corresponding NLO total cross section is 10.37 mb | |
2812 | Double_t x=px[0]; | |
2813 | Double_t c[2]={7.7070e-03,5.3533e-05}; | |
2814 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2815 | Double_t ycharm; | |
2816 | ||
2817 | if (TMath::Abs(x)>9) { | |
2818 | ycharm=0.; | |
2819 | } | |
2820 | else { | |
2821 | ycharm=TMath::Power(y,3); | |
2822 | } | |
2823 | ||
2824 | return ycharm; | |
2825 | } | |
75e0cc59 | 2826 | Double_t AliGenMUONlib::YCharmF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2827 | { |
2828 | // Charm y | |
2829 | // Corresponding NLO total cross section is 7.22 mb | |
2830 | Double_t x=px[0]; | |
2831 | Double_t c[2]={7.9195e-03,5.3823e-05}; | |
2832 | Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); | |
2833 | Double_t ycharm; | |
2834 | ||
2835 | if (TMath::Abs(x)>9) { | |
2836 | ycharm=0.; | |
2837 | } | |
2838 | else { | |
2839 | ycharm=TMath::Power(y,3); | |
2840 | } | |
2841 | ||
2842 | return ycharm; | |
2843 | } | |
fe4da5cc | 2844 | |
ec772ba2 | 2845 | |
65fb704d | 2846 | Int_t AliGenMUONlib::IpCharm(TRandom *ran) |
fe4da5cc | 2847 | { |
d90f80fd | 2848 | // Charm composition |
65fb704d | 2849 | Float_t random; |
fe4da5cc | 2850 | Int_t ip; |
2851 | // 411,421,431,4122 | |
65fb704d | 2852 | random = ran->Rndm(); |
ec772ba2 | 2853 | // Taux de production Carrer & Dainese : ALICE-INT-2003-019 v.3 |
2854 | // >>>>> cf. tab 4 p 11 | |
2855 | ||
2856 | if (random < 0.30) { | |
2857 | ip=421; | |
2858 | } else if (random < 0.60) { | |
2859 | ip=-421; | |
2860 | } else if (random < 0.70) { | |
2861 | ip=411; | |
2862 | } else if (random < 0.80) { | |
2863 | ip=-411; | |
2864 | } else if (random < 0.86) { | |
2865 | ip=431; | |
2866 | } else if (random < 0.92) { | |
2867 | ip=-431; | |
2868 | } else if (random < 0.96) { | |
2869 | ip=4122; | |
fe4da5cc | 2870 | } else { |
ec772ba2 | 2871 | ip=-4122; |
fe4da5cc | 2872 | } |
fe4da5cc | 2873 | |
2874 | return ip; | |
2875 | } | |
2876 | ||
fe4da5cc | 2877 | // |
2878 | // Beauty | |
2879 | // | |
2880 | // | |
2881 | // pt-distribution | |
2882 | //____________________________________________________________ | |
75e0cc59 | 2883 | Double_t AliGenMUONlib::PtBeauty( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 2884 | { |
d90f80fd | 2885 | // Beauty pT |
bd0276a8 | 2886 | const Double_t kpt0 = 6.53; |
2887 | const Double_t kxn = 3.59; | |
2888 | Double_t x=*px; | |
2889 | // | |
2890 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2891 | return x/TMath::Power(pass1,kxn); | |
2892 | } | |
2893 | ||
75e0cc59 | 2894 | Double_t AliGenMUONlib::PtBeautyCentral( const Double_t *px, const Double_t */*dummy*/) |
bd0276a8 | 2895 | { |
2896 | // Beauty pT | |
2897 | const Double_t kpt0 = 6.14; | |
2898 | const Double_t kxn = 2.93; | |
fe4da5cc | 2899 | Double_t x=*px; |
2900 | // | |
d90f80fd | 2901 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); |
2902 | return x/TMath::Power(pass1,kxn); | |
fe4da5cc | 2903 | } |
75e0cc59 | 2904 | Double_t AliGenMUONlib::PtBeautyF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2905 | { |
2906 | // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: | |
2907 | // PtBeautyFiMjSkPP = PtBeautyF0M0S0PP * (dN(i,j,k)/dpt / dN(0,0,0)/dpt)_MNR | |
2908 | // i=0,1,2; j=0,1,2; k=0,1,...,6 | |
2909 | // dN(i,j,k)/dpt - spectra obtained by A.Dainese (hep-ph/0601164, p.88; | |
2910 | // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) | |
2911 | // calculations for the following inputs: | |
2912 | // Peterson fragmentation function (F) with \epsilon_b = 0.001, 0.0002 & 0.004 | |
2913 | // for i=0,1 & 2 respectively; quark mass (M) of 4.75, 4.5 & 5.0 GeV | |
2914 | // for j=0,1 & 2 respectively; | |
2915 | // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) | |
2916 | // with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 for | |
2917 | // k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set | |
2918 | // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). | |
2919 | // June 2008, Smbat.Grigoryan@cern.ch | |
2920 | ||
2921 | // Beauty pT | |
2922 | // Pythia6.214 (kBeautyppMNRwmi, PDF = CTEQ5L, quark mass = 4.75 GeV, PtHard > 2.76 GeV/c) | |
2923 | // for pp collisions at 14 TeV with one b-bbar pair per event. | |
2924 | // Corresponding NLO total cross section is 0.494 mb | |
2925 | ||
2926 | const Double_t kpt0 = 8.0575; | |
2927 | const Double_t kxn = 3.1921; | |
2928 | Double_t x=*px; | |
2929 | // | |
2930 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2931 | return x/TMath::Power(pass1,kxn); | |
2932 | } | |
75e0cc59 | 2933 | Double_t AliGenMUONlib::PtBeautyF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2934 | { |
2935 | // Beauty pT | |
2936 | // Corresponding NLO total cross section is 0.445 mb | |
2937 | const Double_t kpt0 = 8.6239; | |
2938 | const Double_t kxn = 3.2911; | |
2939 | Double_t x=*px; | |
2940 | // | |
2941 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2942 | return x/TMath::Power(pass1,kxn); | |
2943 | } | |
75e0cc59 | 2944 | Double_t AliGenMUONlib::PtBeautyF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2945 | { |
2946 | // Beauty pT | |
2947 | // Corresponding NLO total cross section is 0.445 mb | |
2948 | const Double_t kpt0 = 7.3367; | |
2949 | const Double_t kxn = 3.0692; | |
2950 | Double_t x=*px; | |
2951 | // | |
2952 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2953 | return x/TMath::Power(pass1,kxn); | |
2954 | } | |
75e0cc59 | 2955 | Double_t AliGenMUONlib::PtBeautyF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2956 | { |
2957 | // Beauty pT | |
2958 | // Corresponding NLO total cross section is 0.518 mb | |
2959 | const Double_t kpt0 = 7.6409; | |
2960 | const Double_t kxn = 3.1364; | |
2961 | Double_t x=*px; | |
2962 | // | |
2963 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2964 | return x/TMath::Power(pass1,kxn); | |
2965 | } | |
75e0cc59 | 2966 | Double_t AliGenMUONlib::PtBeautyF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2967 | { |
2968 | // Beauty pT | |
2969 | // Corresponding NLO total cross section is 0.384 mb | |
2970 | const Double_t kpt0 = 8.4948; | |
2971 | const Double_t kxn = 3.2546; | |
2972 | Double_t x=*px; | |
2973 | // | |
2974 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2975 | return x/TMath::Power(pass1,kxn); | |
2976 | } | |
75e0cc59 | 2977 | Double_t AliGenMUONlib::PtBeautyF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2978 | { |
2979 | // Beauty pT | |
2980 | // Corresponding NLO total cross section is 0.648 mb | |
2981 | const Double_t kpt0 = 7.6631; | |
2982 | const Double_t kxn = 3.1621; | |
2983 | Double_t x=*px; | |
2984 | // | |
2985 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2986 | return x/TMath::Power(pass1,kxn); | |
2987 | } | |
75e0cc59 | 2988 | Double_t AliGenMUONlib::PtBeautyF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 2989 | { |
2990 | // Beauty pT | |
2991 | // Corresponding NLO total cross section is 0.294 mb | |
2992 | const Double_t kpt0 = 8.7245; | |
2993 | const Double_t kxn = 3.2213; | |
2994 | Double_t x=*px; | |
2995 | // | |
2996 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
2997 | return x/TMath::Power(pass1,kxn); | |
2998 | } | |
75e0cc59 | 2999 | Double_t AliGenMUONlib::PtBeautyF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3000 | { |
3001 | // Beauty pT | |
3002 | // Corresponding NLO total cross section is 0.475 mb | |
3003 | const Double_t kpt0 = 8.5296; | |
3004 | const Double_t kxn = 3.2187; | |
3005 | Double_t x=*px; | |
3006 | // | |
3007 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3008 | return x/TMath::Power(pass1,kxn); | |
3009 | } | |
75e0cc59 | 3010 | Double_t AliGenMUONlib::PtBeautyF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3011 | { |
3012 | // Beauty pT | |
3013 | // Corresponding NLO total cross section is 0.324 mb | |
3014 | const Double_t kpt0 = 7.9440; | |
3015 | const Double_t kxn = 3.1614; | |
3016 | Double_t x=*px; | |
3017 | // | |
3018 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3019 | return x/TMath::Power(pass1,kxn); | |
3020 | } | |
75e0cc59 | 3021 | Double_t AliGenMUONlib::PtBeautyF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3022 | { |
3023 | // Beauty pT | |
3024 | // Corresponding NLO total cross section is 0.536 mb | |
3025 | const Double_t kpt0 = 8.2408; | |
3026 | const Double_t kxn = 3.3029; | |
3027 | Double_t x=*px; | |
3028 | // | |
3029 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3030 | return x/TMath::Power(pass1,kxn); | |
3031 | } | |
75e0cc59 | 3032 | Double_t AliGenMUONlib::PtBeautyF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3033 | { |
3034 | // Beauty pT | |
3035 | // Corresponding NLO total cross section is 0.420 mb | |
3036 | const Double_t kpt0 = 7.8041; | |
3037 | const Double_t kxn = 3.2094; | |
3038 | Double_t x=*px; | |
3039 | // | |
3040 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3041 | return x/TMath::Power(pass1,kxn); | |
3042 | } | |
3043 | ||
fe4da5cc | 3044 | // y-distribution |
75e0cc59 | 3045 | Double_t AliGenMUONlib::YBeauty( const Double_t *px, const Double_t */*dummy*/) |
fe4da5cc | 3046 | { |
ec772ba2 | 3047 | // Beauty y :: Carrer & Dainese : ALICE-INT-2003-019 v.3 (hep-ph/0311225) |
3048 | // Pythia tuned to reproduce the distribution given by the HVQMNR program based on NLO calculations (pQCD) | |
3049 | // shadowing + kt broadening | |
3050 | ||
3051 | Double_t x=px[0]; | |
3052 | Double_t c[2]={-1.27590e-02,-2.42731e-04}; | |
3053 | Double_t y=1+c[0]*TMath::Power(x,2)+c[1]*TMath::Power(x,4); | |
3054 | Double_t ybeauty; | |
3055 | ||
3056 | if (TMath::Abs(x)>6) { | |
3057 | ybeauty=0.; | |
3058 | } | |
3059 | else { | |
3060 | ybeauty=TMath::Power(y,3); | |
3061 | } | |
3062 | ||
3063 | return ybeauty; | |
fe4da5cc | 3064 | } |
75e0cc59 | 3065 | Double_t AliGenMUONlib::YBeautyF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3066 | { |
3067 | // FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: | |
3068 | // YBeautyFiMjSkPP = YBeautyF0M0S0PP * (dN(i,j,k)/dy / dN(0,0,0)/dy)_MNR | |
3069 | // i=0,1,2; j=0,1,2; k=0,1,...,6 | |
3070 | // dN(i,j,k)/dy - spectra obtained by A.Dainese (hep-ph/0601164, p.88; | |
3071 | // http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) | |
3072 | // calculations for the following inputs: | |
3073 | // Peterson fragmentation function (F) with \epsilon_b = 0.001, 0.0002 & 0.004 | |
3074 | // for i=0,1 & 2 respectively; quark mass (M) of 4.75, 4.5 & 5.0 GeV | |
3075 | // for j=0,1 & 2 respectively; | |
3076 | // factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) | |
3077 | // with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 | |
3078 | // for k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set | |
3079 | // (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). | |
3080 | // June 2008, Smbat.Grigoryan@cern.ch | |
3081 | ||
3082 | // Beauty y | |
3083 | // Pythia6.214 (kBeautyppMNRwmi, PDF = CTEQ5L, quark mass = 4.75 GeV, PtHard > 2.76 GeV/c) | |
3084 | // for pp collisions at 14 TeV with one b-bbar pair per event. | |
3085 | // Corresponding NLO total cross section is 0.494 mb | |
3086 | ||
fe4da5cc | 3087 | |
9e9ae065 | 3088 | Double_t x=px[0]; |
3089 | Double_t c[2]={1.2350e-02,9.2667e-05}; | |
3090 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3091 | Double_t ybeauty; | |
3092 | ||
3093 | if (TMath::Abs(x)>7.6) { | |
3094 | ybeauty=0.; | |
3095 | } | |
3096 | else { | |
3097 | ybeauty=TMath::Power(y,3); | |
3098 | } | |
3099 | ||
3100 | return ybeauty; | |
3101 | } | |
75e0cc59 | 3102 | Double_t AliGenMUONlib::YBeautyF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3103 | { |
3104 | // Beauty y | |
3105 | // Corresponding NLO total cross section is 0.445 mb | |
3106 | Double_t x=px[0]; | |
3107 | Double_t c[2]={1.2292e-02,9.1847e-05}; | |
3108 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3109 | Double_t ybeauty; | |
3110 | ||
3111 | if (TMath::Abs(x)>7.6) { | |
3112 | ybeauty=0.; | |
3113 | } | |
3114 | else { | |
3115 | ybeauty=TMath::Power(y,3); | |
3116 | } | |
3117 | ||
3118 | return ybeauty; | |
3119 | } | |
75e0cc59 | 3120 | Double_t AliGenMUONlib::YBeautyF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3121 | { |
3122 | // Beauty y | |
3123 | // Corresponding NLO total cross section is 0.445 mb | |
3124 | Double_t x=px[0]; | |
3125 | Double_t c[2]={1.2436e-02,9.3709e-05}; | |
3126 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3127 | Double_t ybeauty; | |
3128 | ||
3129 | if (TMath::Abs(x)>7.6) { | |
3130 | ybeauty=0.; | |
3131 | } | |
3132 | else { | |
3133 | ybeauty=TMath::Power(y,3); | |
3134 | } | |
3135 | ||
3136 | return ybeauty; | |
3137 | } | |
75e0cc59 | 3138 | Double_t AliGenMUONlib::YBeautyF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3139 | { |
3140 | // Beauty y | |
3141 | // Corresponding NLO total cross section is 0.518 mb | |
3142 | Double_t x=px[0]; | |
3143 | Double_t c[2]={1.1714e-02,1.0068e-04}; | |
3144 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3145 | Double_t ybeauty; | |
3146 | ||
3147 | if (TMath::Abs(x)>7.6) { | |
3148 | ybeauty=0.; | |
3149 | } | |
3150 | else { | |
3151 | ybeauty=TMath::Power(y,3); | |
3152 | } | |
3153 | ||
3154 | return ybeauty; | |
3155 | } | |
75e0cc59 | 3156 | Double_t AliGenMUONlib::YBeautyF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3157 | { |
3158 | // Beauty y | |
3159 | // Corresponding NLO total cross section is 0.384 mb | |
3160 | Double_t x=px[0]; | |
3161 | Double_t c[2]={1.2944e-02,8.5500e-05}; | |
3162 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3163 | Double_t ybeauty; | |
3164 | ||
3165 | if (TMath::Abs(x)>7.6) { | |
3166 | ybeauty=0.; | |
3167 | } | |
3168 | else { | |
3169 | ybeauty=TMath::Power(y,3); | |
3170 | } | |
3171 | ||
3172 | return ybeauty; | |
3173 | } | |
75e0cc59 | 3174 | Double_t AliGenMUONlib::YBeautyF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3175 | { |
3176 | // Beauty y | |
3177 | // Corresponding NLO total cross section is 0.648 mb | |
3178 | Double_t x=px[0]; | |
3179 | Double_t c[2]={1.2455e-02,9.2713e-05}; | |
3180 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3181 | Double_t ybeauty; | |
3182 | ||
3183 | if (TMath::Abs(x)>7.6) { | |
3184 | ybeauty=0.; | |
3185 | } | |
3186 | else { | |
3187 | ybeauty=TMath::Power(y,3); | |
3188 | } | |
3189 | ||
3190 | return ybeauty; | |
3191 | } | |
75e0cc59 | 3192 | Double_t AliGenMUONlib::YBeautyF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3193 | { |
3194 | // Beauty y | |
3195 | // Corresponding NLO total cross section is 0.294 mb | |
3196 | Double_t x=px[0]; | |
3197 | Double_t c[2]={1.0897e-02,1.1878e-04}; | |
3198 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3199 | Double_t ybeauty; | |
3200 | ||
3201 | if (TMath::Abs(x)>7.6) { | |
3202 | ybeauty=0.; | |
3203 | } | |
3204 | else { | |
3205 | ybeauty=TMath::Power(y,3); | |
3206 | } | |
3207 | ||
3208 | return ybeauty; | |
3209 | } | |
75e0cc59 | 3210 | Double_t AliGenMUONlib::YBeautyF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3211 | { |
3212 | // Beauty y | |
3213 | // Corresponding NLO total cross section is 0.475 mb | |
3214 | Double_t x=px[0]; | |
3215 | Double_t c[2]={1.0912e-02,1.1858e-04}; | |
3216 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3217 | Double_t ybeauty; | |
3218 | ||
3219 | if (TMath::Abs(x)>7.6) { | |
3220 | ybeauty=0.; | |
3221 | } | |
3222 | else { | |
3223 | ybeauty=TMath::Power(y,3); | |
3224 | } | |
3225 | ||
3226 | return ybeauty; | |
3227 | } | |
75e0cc59 | 3228 | Double_t AliGenMUONlib::YBeautyF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3229 | { |
3230 | // Beauty y | |
3231 | // Corresponding NLO total cross section is 0.324 mb | |
3232 | Double_t x=px[0]; | |
3233 | Double_t c[2]={1.2378e-02,9.2490e-05}; | |
3234 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3235 | Double_t ybeauty; | |
3236 | ||
3237 | if (TMath::Abs(x)>7.6) { | |
3238 | ybeauty=0.; | |
3239 | } | |
3240 | else { | |
3241 | ybeauty=TMath::Power(y,3); | |
3242 | } | |
3243 | ||
3244 | return ybeauty; | |
3245 | } | |
75e0cc59 | 3246 | Double_t AliGenMUONlib::YBeautyF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3247 | { |
3248 | // Beauty y | |
3249 | // Corresponding NLO total cross section is 0.536 mb | |
3250 | Double_t x=px[0]; | |
3251 | Double_t c[2]={1.2886e-02,8.2912e-05}; | |
3252 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3253 | Double_t ybeauty; | |
3254 | ||
3255 | if (TMath::Abs(x)>7.6) { | |
3256 | ybeauty=0.; | |
3257 | } | |
3258 | else { | |
3259 | ybeauty=TMath::Power(y,3); | |
3260 | } | |
3261 | ||
3262 | return ybeauty; | |
3263 | } | |
75e0cc59 | 3264 | Double_t AliGenMUONlib::YBeautyF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) |
9e9ae065 | 3265 | { |
3266 | // Beauty y | |
3267 | // Corresponding NLO total cross section is 0.420 mb | |
3268 | Double_t x=px[0]; | |
3269 | Double_t c[2]={1.3106e-02,8.0115e-05}; | |
3270 | Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); | |
3271 | Double_t ybeauty; | |
3272 | ||
3273 | if (TMath::Abs(x)>7.6) { | |
3274 | ybeauty=0.; | |
3275 | } | |
3276 | else { | |
3277 | ybeauty=TMath::Power(y,3); | |
3278 | } | |
3279 | ||
3280 | return ybeauty; | |
3281 | } | |
ec772ba2 | 3282 | |
65fb704d | 3283 | Int_t AliGenMUONlib::IpBeauty(TRandom *ran) |
fe4da5cc | 3284 | { |
d90f80fd | 3285 | // Beauty Composition |
65fb704d | 3286 | Float_t random; |
fe4da5cc | 3287 | Int_t ip; |
ec772ba2 | 3288 | random = ran->Rndm(); |
3289 | ||
3290 | // Taux de production Carrer & Dainese : ALICE-INT-2003-019 v.3 | |
3291 | // >>>>> cf. tab 4 p 11 | |
3292 | ||
3293 | if (random < 0.20) { | |
3294 | ip=511; | |
3295 | } else if (random < 0.40) { | |
3296 | ip=-511; | |
3297 | } else if (random < 0.605) { | |
3298 | ip=521; | |
3299 | } else if (random < 0.81) { | |
3300 | ip=-521; | |
3301 | } else if (random < 0.87) { | |
3302 | ip=531; | |
3303 | } else if (random < 0.93) { | |
3304 | ip=-531; | |
3305 | } else if (random < 0.965) { | |
3306 | ip=5122; | |
fe4da5cc | 3307 | } else { |
ec772ba2 | 3308 | ip=-5122; |
fe4da5cc | 3309 | } |
fe4da5cc | 3310 | |
ec772ba2 | 3311 | return ip; |
fe4da5cc | 3312 | } |
3313 | ||
ec772ba2 | 3314 | |
75e0cc59 | 3315 | typedef Double_t (*GenFunc) (const Double_t*, const Double_t*); |
53904666 | 3316 | GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const |
fe4da5cc | 3317 | { |
d90f80fd | 3318 | // Return pointer to pT parameterisation |
05932df6 | 3319 | TString sname = TString(tname); |
fe4da5cc | 3320 | GenFunc func; |
753690b0 | 3321 | switch (param) |
fe4da5cc | 3322 | { |
34f60c01 | 3323 | case kPhi: |
fe4da5cc | 3324 | func=PtPhi; |
3325 | break; | |
89512a3b | 3326 | case kOmega: |
3327 | func=PtOmega; | |
3328 | break; | |
3329 | case kEta: | |
3330 | func=PtEta; | |
3331 | break; | |
0ad09590 | 3332 | case kJpsiFamily: |
88e5db43 | 3333 | case kPsiP: |
ba8bf3f5 | 3334 | case kChic1: |
3335 | case kChic2: | |
34f60c01 | 3336 | case kJpsi: |
bb6e81ac | 3337 | if (sname == "Vogt" || sname == "Vogt PbPb") { |
05932df6 | 3338 | func=PtJpsiPbPb; |
bb6e81ac | 3339 | } else if (sname == "Vogt pp") { |
3340 | func=PtJpsiPP; | |
a4f206bf | 3341 | } else if (sname == "pp 7") { |
3342 | func=PtJpsiPP7000; | |
3343 | } else if (sname == "pp 2.76") { | |
3344 | func=PtJpsiPP2760; | |
3345 | } else if (sname == "PbPb 2.76") { | |
3346 | func=PtJpsiPbPb2760; | |
7455632e | 3347 | } else if (sname == "PbPb 2.76c1") { |
3348 | func=PtJpsiPbPb2760c1; | |
3349 | } else if (sname == "PbPb 2.76c2") { | |
3350 | func=PtJpsiPbPb2760c2; | |
3351 | } else if (sname == "PbPb 2.76c3") { | |
3352 | func=PtJpsiPbPb2760c3; | |
3353 | } else if (sname == "PbPb 2.76c4") { | |
3354 | func=PtJpsiPbPb2760c4; | |
3355 | } else if (sname == "PbPb 2.76c5") { | |
3356 | func=PtJpsiPbPb2760c5; | |
3357 | } else if (sname == "PbPb 2.76c6") { | |
3358 | func=PtJpsiPbPb2760c6; | |
3359 | } else if (sname == "PbPb 2.76c7") { | |
3360 | func=PtJpsiPbPb2760c7; | |
3361 | } else if (sname == "PbPb 2.76c8") { | |
3362 | func=PtJpsiPbPb2760c8; | |
3363 | } else if (sname == "PbPb 2.76c9") { | |
3364 | func=PtJpsiPbPb2760c9; | |
3365 | } else if (sname == "PbPb 2.76c10") { | |
3366 | func=PtJpsiPbPb2760c10; | |
3367 | } else if (sname == "PbPb 2.76c11") { | |
3368 | func=PtJpsiPbPb2760c11; | |
3369 | } else if (sname == "pp 7 poly") { | |
3370 | func=PtJpsiPP7000; | |
3371 | } else if (sname == "pp 2.76 poly") { | |
3372 | func=PtJpsiPP2760; | |
3373 | } else if (sname == "pp 8.8") { | |
3374 | func=PtJpsiPP8800; | |
3375 | } else if (sname == "pPb 8.8") { | |
3376 | func=PtJpsiPPb8800; | |
3377 | } else if (sname == "pPb 8.8c1") { | |
3378 | func=PtJpsiPPb8800c1; | |
3379 | } else if (sname == "pPb 8.8c2") { | |
3380 | func=PtJpsiPPb8800c2; | |
3381 | } else if (sname == "pPb 8.8c3") { | |
3382 | func=PtJpsiPPb8800c3; | |
3383 | } else if (sname == "pPb 8.8c4") { | |
3384 | func=PtJpsiPPb8800c4; | |
3385 | } else if (sname == "Pbp 8.8") { | |
3386 | func=PtJpsiPbP8800; | |
3387 | } else if (sname == "Pbp 8.8c1") { | |
3388 | func=PtJpsiPbP8800c1; | |
3389 | } else if (sname == "Pbp 8.8c2") { | |
3390 | func=PtJpsiPbP8800c2; | |
3391 | } else if (sname == "Pbp 8.8c3") { | |
3392 | func=PtJpsiPbP8800c3; | |
3393 | } else if (sname == "Pbp 8.8c4") { | |
3394 | func=PtJpsiPbP8800c4; | |
0e137c25 | 3395 | } else if (sname == "CDF scaled") { |
3396 | func=PtJpsiCDFscaled; | |
9ff13849 | 3397 | } else if (sname == "CDF pp") { |
3398 | func=PtJpsiCDFscaledPP; | |
9e9ae065 | 3399 | } else if (sname == "CDF pp 10") { |
3400 | func=PtJpsiCDFscaledPP10; | |
9fd56238 | 3401 | } else if (sname == "CDF pp 8.8") { |
3402 | func=PtJpsiCDFscaledPP9; | |
94a2994d | 3403 | } else if (sname == "CDF pp 7" || sname == "CDF pp 7 flat y") { |
9fd56238 | 3404 | func=PtJpsiCDFscaledPP7; |
3405 | } else if (sname == "CDF pp 3.94") { | |
3406 | func=PtJpsiCDFscaledPP4; | |
a4f206bf | 3407 | } else if (sname == "CDF pp 2.76") { |
3408 | func=PtJpsiCDFscaledPP3; | |
3409 | } else if (sname == "CDF pp 1.9") { | |
3410 | func=PtJpsiCDFscaledPP2; | |
9fd56238 | 3411 | } else if (sname == "CDF pPb 8.8") { |
3412 | func=PtJpsiCDFscaledPPb9; | |
3413 | } else if (sname == "CDF Pbp 8.8") { | |
3414 | func=PtJpsiCDFscaledPbP9; | |
3415 | } else if (sname == "CDF PbPb 3.94") { | |
3416 | func=PtJpsiCDFscaledPbPb4; | |
94a2994d | 3417 | } else if (sname == "Flat" || sname == "CDF pp 7 flat pt") { |
4ca8d070 | 3418 | func=PtJpsiFlat; |
05932df6 | 3419 | } else { |
3420 | func=PtJpsi; | |
3421 | } | |
fe4da5cc | 3422 | break; |
17d28ba5 | 3423 | case kJpsiFromB: |
3424 | func = PtJpsiBPbPb; | |
3425 | break; | |
0ad09590 | 3426 | case kUpsilonFamily: |
88e5db43 | 3427 | case kUpsilonP: |
3428 | case kUpsilonPP: | |
34f60c01 | 3429 | case kUpsilon: |
bb6e81ac | 3430 | if (sname == "Vogt" || sname == "Vogt PbPb") { |
05932df6 | 3431 | func=PtUpsilonPbPb; |
bb6e81ac | 3432 | } else if (sname == "Vogt pp") { |
3433 | func=PtUpsilonPP; | |
7455632e | 3434 | } else if (sname == "pp 7") { |
3435 | func=PtUpsilonPP7000; | |
3436 | } else if (sname == "pp 2.76") { | |
3437 | func=PtUpsilonPP2760; | |
3438 | } else if (sname == "PbPb 2.76") { | |
3439 | func=PtUpsilonPbPb2760; | |
3440 | } else if (sname == "PbPb 2.76c1") { | |
3441 | func=PtUpsilonPbPb2760c1; | |
3442 | } else if (sname == "PbPb 2.76c2") { | |
3443 | func=PtUpsilonPbPb2760c2; | |
3444 | } else if (sname == "PbPb 2.76c3") { | |
3445 | func=PtUpsilonPbPb2760c3; | |
3446 | } else if (sname == "PbPb 2.76c4") { | |
3447 | func=PtUpsilonPbPb2760c4; | |
3448 | } else if (sname == "PbPb 2.76c5") { | |
3449 | func=PtUpsilonPbPb2760c5; | |
3450 | } else if (sname == "PbPb 2.76c6") { | |
3451 | func=PtUpsilonPbPb2760c6; | |
3452 | } else if (sname == "PbPb 2.76c7") { | |
3453 | func=PtUpsilonPbPb2760c7; | |
3454 | } else if (sname == "PbPb 2.76c8") { | |
3455 | func=PtUpsilonPbPb2760c8; | |
3456 | } else if (sname == "PbPb 2.76c9") { | |
3457 | func=PtUpsilonPbPb2760c9; | |
3458 | } else if (sname == "PbPb 2.76c10") { | |
3459 | func=PtUpsilonPbPb2760c10; | |
3460 | } else if (sname == "PbPb 2.76c11") { | |
3461 | func=PtUpsilonPbPb2760c11; | |
3462 | } else if (sname == "pp 7 poly") { | |
3463 | func=PtUpsilonPP7000; | |
3464 | } else if (sname == "pp 2.76 poly") { | |
3465 | func=PtUpsilonPP2760; | |
3466 | } else if (sname == "pp 8.8") { | |
3467 | func=PtUpsilonPP8800; | |
3468 | } else if (sname == "pPb 8.8") { | |
3469 | func=PtUpsilonPPb8800; | |
3470 | } else if (sname == "pPb 8.8c1") { | |
3471 | func=PtUpsilonPPb8800c1; | |
3472 | } else if (sname == "pPb 8.8c2") { | |
3473 | func=PtUpsilonPPb8800c2; | |
3474 | } else if (sname == "pPb 8.8c3") { | |
3475 | func=PtUpsilonPPb8800c3; | |
3476 | } else if (sname == "pPb 8.8c4") { | |
3477 | func=PtUpsilonPPb8800c4; | |
3478 | } else if (sname == "Pbp 8.8") { | |
3479 | func=PtUpsilonPbP8800; | |
3480 | } else if (sname == "Pbp 8.8c1") { | |
3481 | func=PtUpsilonPbP8800c1; | |
3482 | } else if (sname == "Pbp 8.8c2") { | |
3483 | func=PtUpsilonPbP8800c2; | |
3484 | } else if (sname == "Pbp 8.8c3") { | |
3485 | func=PtUpsilonPbP8800c3; | |
3486 | } else if (sname == "Pbp 8.8c4") { | |
3487 | func=PtUpsilonPbP8800c4; | |
0e137c25 | 3488 | } else if (sname == "CDF scaled") { |
3489 | func=PtUpsilonCDFscaled; | |
9ff13849 | 3490 | } else if (sname == "CDF pp") { |
3491 | func=PtUpsilonCDFscaledPP; | |
b33adf51 | 3492 | } else if (sname == "CDF pp 10") { |
3493 | func=PtUpsilonCDFscaledPP10; | |
9fd56238 | 3494 | } else if (sname == "CDF pp 8.8") { |
3495 | func=PtUpsilonCDFscaledPP9; | |
3496 | } else if (sname == "CDF pp 7") { | |
3497 | func=PtUpsilonCDFscaledPP7; | |
3498 | } else if (sname == "CDF pp 3.94") { | |
3499 | func=PtUpsilonCDFscaledPP4; | |
3500 | } else if (sname == "CDF pPb 8.8") { | |
3501 | func=PtUpsilonCDFscaledPPb9; | |
3502 | } else if (sname == "CDF Pbp 8.8") { | |
3503 | func=PtUpsilonCDFscaledPbP9; | |
3504 | } else if (sname == "CDF PbPb 3.94") { | |
3505 | func=PtUpsilonCDFscaledPbPb4; | |
4ca8d070 | 3506 | } else if (sname == "Flat") { |
3507 | func=PtUpsilonFlat; | |
05932df6 | 3508 | } else { |
3509 | func=PtUpsilon; | |
3510 | } | |
0ad09590 | 3511 | break; |
34f60c01 | 3512 | case kCharm: |
9e9ae065 | 3513 | if (sname == "F0M0S0 pp") { |
3514 | func=PtCharmF0M0S0PP; | |
3515 | } else if (sname == "F1M0S0 pp") { | |
3516 | func=PtCharmF1M0S0PP; | |
3517 | } else if (sname == "F2M0S0 pp") { | |
3518 | func=PtCharmF2M0S0PP; | |
3519 | } else if (sname == "F0M1S0 pp") { | |
3520 | func=PtCharmF0M1S0PP; | |
3521 | } else if (sname == "F0M2S0 pp") { | |
3522 | func=PtCharmF0M2S0PP; | |
3523 | } else if (sname == "F0M0S1 pp") { | |
3524 | func=PtCharmF0M0S1PP; | |
3525 | } else if (sname == "F0M0S2 pp") { | |
3526 | func=PtCharmF0M0S2PP; | |
3527 | } else if (sname == "F0M0S3 pp") { | |
3528 | func=PtCharmF0M0S3PP; | |
3529 | } else if (sname == "F0M0S4 pp") { | |
3530 | func=PtCharmF0M0S4PP; | |
3531 | } else if (sname == "F0M0S5 pp") { | |
3532 | func=PtCharmF0M0S5PP; | |
3533 | } else if (sname == "F0M0S6 pp") { | |
3534 | func=PtCharmF0M0S6PP; | |
3535 | } else if (sname == "central") { | |
bd0276a8 | 3536 | func=PtCharmCentral; |
3537 | } else { | |
3538 | func=PtCharm; | |
3539 | } | |
fe4da5cc | 3540 | break; |
34f60c01 | 3541 | case kBeauty: |
9e9ae065 | 3542 | if (sname == "F0M0S0 pp") { |
3543 | func=PtBeautyF0M0S0PP; | |
3544 | } else if (sname == "F1M0S0 pp") { | |
3545 | func=PtBeautyF1M0S0PP; | |
3546 | } else if (sname == "F2M0S0 pp") { | |
3547 | func=PtBeautyF2M0S0PP; | |
3548 | } else if (sname == "F0M1S0 pp") { | |
3549 | func=PtBeautyF0M1S0PP; | |
3550 | } else if (sname == "F0M2S0 pp") { | |
3551 | func=PtBeautyF0M2S0PP; | |
3552 | } else if (sname == "F0M0S1 pp") { | |
3553 | func=PtBeautyF0M0S1PP; | |
3554 | } else if (sname == "F0M0S2 pp") { | |
3555 | func=PtBeautyF0M0S2PP; | |
3556 | } else if (sname == "F0M0S3 pp") { | |
3557 | func=PtBeautyF0M0S3PP; | |
3558 | } else if (sname == "F0M0S4 pp") { | |
3559 | func=PtBeautyF0M0S4PP; | |
3560 | } else if (sname == "F0M0S5 pp") { | |
3561 | func=PtBeautyF0M0S5PP; | |
3562 | } else if (sname == "F0M0S6 pp") { | |
3563 | func=PtBeautyF0M0S6PP; | |
3564 | } else if (sname == "central") { | |
bd0276a8 | 3565 | func=PtBeautyCentral; |
3566 | } else { | |
3567 | func=PtBeauty; | |
3568 | } | |
fe4da5cc | 3569 | break; |
34f60c01 | 3570 | case kPion: |
f9a1ce31 | 3571 | if (sname == "2010 Pos PP") { |
3572 | func=PtPionPos2010PP; | |
3573 | } else if (sname == "2010 Neg PP") { | |
3574 | func=PtPionNeg2010PP; | |
3575 | } else { | |
3576 | func=PtPion; | |
3577 | } | |
753690b0 | 3578 | break; |
34f60c01 | 3579 | case kKaon: |
f9a1ce31 | 3580 | if (sname == "2010 Pos PP") { |
3581 | func=PtKaonPos2010PP; | |
3582 | } else if (sname == "2010 Neg PP") { | |
3583 | func=PtKaonNeg2010PP; | |
3584 | } else { | |
3585 | func=PtKaon; | |
3586 | } | |
753690b0 | 3587 | break; |
6b450aa0 | 3588 | case kChic0: |
3589 | func=PtChic0; | |
00935af2 | 3590 | break; |
6b450aa0 | 3591 | case kChic: |
3592 | func=PtChic; | |
00935af2 | 3593 | break; |
119b35c7 | 3594 | default: |
3595 | func=0; | |
3596 | printf("<AliGenMUONlib::GetPt> unknown parametrisation\n"); | |
fe4da5cc | 3597 | } |
3598 | return func; | |
3599 | } | |
3600 | ||
53904666 | 3601 | GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname) const |
fe4da5cc | 3602 | { |
ac3faee4 | 3603 | // |
3604 | // Return pointer to y- parameterisation | |
3605 | // | |
05932df6 | 3606 | TString sname = TString(tname); |
fe4da5cc | 3607 | GenFunc func; |
753690b0 | 3608 | switch (param) |
fe4da5cc | 3609 | { |
34f60c01 | 3610 | case kPhi: |
fe4da5cc | 3611 | func=YPhi; |
3612 | break; | |
89512a3b | 3613 | case kEta: |
3614 | func=YEta; | |
3615 | break; | |
3616 | case kOmega: | |
3617 | func=YOmega; | |
3618 | break; | |
0ad09590 | 3619 | case kJpsiFamily: |
88e5db43 | 3620 | case kPsiP: |
ba8bf3f5 | 3621 | case kChic1: |
3622 | case kChic2: | |
34f60c01 | 3623 | case kJpsi: |
bb6e81ac | 3624 | if (sname == "Vogt" || sname == "Vogt PbPb") { |
05932df6 | 3625 | func=YJpsiPbPb; |
bb6e81ac | 3626 | } else if (sname == "Vogt pp"){ |
3627 | func=YJpsiPP; | |
a4f206bf | 3628 | } else if (sname == "pp 7") { |
3629 | func=YJpsiPP7000; | |
3630 | } else if (sname == "pp 2.76") { | |
3631 | func=YJpsiPP2760; | |
3632 | } else if (sname == "PbPb 2.76") { | |
3633 | func=YJpsiPbPb2760; | |
7455632e | 3634 | } else if (sname == "PbPb 2.76c1") { |
3635 | func=YJpsiPbPb2760c1; | |
3636 | } else if (sname == "PbPb 2.76c2") { | |
3637 | func=YJpsiPbPb2760c2; | |
3638 | } else if (sname == "PbPb 2.76c3") { | |
3639 | func=YJpsiPbPb2760c3; | |
3640 | } else if (sname == "PbPb 2.76c4") { | |
3641 | func=YJpsiPbPb2760c4; | |
3642 | } else if (sname == "PbPb 2.76c5") { | |
3643 | func=YJpsiPbPb2760c5; | |
3644 | } else if (sname == "PbPb 2.76c6") { | |
3645 | func=YJpsiPbPb2760c6; | |
3646 | } else if (sname == "PbPb 2.76c7") { | |
3647 | func=YJpsiPbPb2760c7; | |
3648 | } else if (sname == "PbPb 2.76c8") { | |
3649 | func=YJpsiPbPb2760c8; | |
3650 | } else if (sname == "PbPb 2.76c9") { | |
3651 | func=YJpsiPbPb2760c9; | |
3652 | } else if (sname == "PbPb 2.76c10") { | |
3653 | func=YJpsiPbPb2760c10; | |
3654 | } else if (sname == "PbPb 2.76c11") { | |
3655 | func=YJpsiPbPb2760c11; | |
3656 | } else if (sname == "pp 7 poly") { | |
3657 | func=YJpsiPPpoly7000; | |
3658 | } else if (sname == "pp 2.76 poly") { | |
3659 | func=YJpsiPPpoly2760; | |
3660 | } else if (sname == "pp 8.8") { | |
3661 | func=YJpsiPP8800; | |
3662 | } else if (sname == "pPb 8.8") { | |
3663 | func=YJpsiPPb8800; | |
3664 | } else if (sname == "pPb 8.8c1") { | |
3665 | func=YJpsiPPb8800c1; | |
3666 | } else if (sname == "pPb 8.8c2") { | |
3667 | func=YJpsiPPb8800c2; | |
3668 | } else if (sname == "pPb 8.8c3") { | |
3669 | func=YJpsiPPb8800c3; | |
3670 | } else if (sname == "pPb 8.8c4") { | |
3671 | func=YJpsiPPb8800c4; | |
3672 | } else if (sname == "Pbp 8.8") { | |
3673 | func=YJpsiPbP8800; | |
3674 | } else if (sname == "Pbp 8.8c1") { | |
3675 | func=YJpsiPbP8800c1; | |
3676 | } else if (sname == "Pbp 8.8c2") { | |
3677 | func=YJpsiPbP8800c2; | |
3678 | } else if (sname == "Pbp 8.8c3") { | |
3679 | func=YJpsiPbP8800c3; | |
3680 | } else if (sname == "Pbp 8.8c4") { | |
3681 | func=YJpsiPbP8800c4; | |
0e137c25 | 3682 | } else if (sname == "CDF scaled") { |
3683 | func=YJpsiCDFscaled; | |
9ff13849 | 3684 | } else if (sname == "CDF pp") { |
3685 | func=YJpsiCDFscaledPP; | |
9e9ae065 | 3686 | } else if (sname == "CDF pp 10") { |
3687 | func=YJpsiCDFscaledPP10; | |
9fd56238 | 3688 | } else if (sname == "CDF pp 8.8") { |
3689 | func=YJpsiCDFscaledPP9; | |
94a2994d | 3690 | } else if (sname == "CDF pp 7" || sname == "CDF pp 7 flat pt") { |
9fd56238 | 3691 | func=YJpsiCDFscaledPP7; |
3692 | } else if (sname == "CDF pp 3.94") { | |
3693 | func=YJpsiCDFscaledPP4; | |
a4f206bf | 3694 | } else if (sname == "CDF pp 2.76") { |
3695 | func=YJpsiCDFscaledPP3; | |
3696 | } else if (sname == "CDF pp 1.9") { | |
3697 | func=YJpsiCDFscaledPP2; | |
9fd56238 | 3698 | } else if (sname == "CDF pPb 8.8") { |
3699 | func=YJpsiCDFscaledPPb9; | |
3700 | } else if (sname == "CDF Pbp 8.8") { | |
3701 | func=YJpsiCDFscaledPbP9; | |
3702 | } else if (sname == "CDF PbPb 3.94") { | |
3703 | func=YJpsiCDFscaledPbPb4; | |
94a2994d | 3704 | } else if (sname == "Flat" || sname == "CDF pp 7 flat y") { |
4ca8d070 | 3705 | func=YJpsiFlat; |
05932df6 | 3706 | } else { |
3707 | func=YJpsi; | |
3708 | } | |
17d28ba5 | 3709 | break; |
3710 | case kJpsiFromB: | |
3711 | func = YJpsiBPbPb; | |
fe4da5cc | 3712 | break; |
0ad09590 | 3713 | case kUpsilonFamily: |
88e5db43 | 3714 | case kUpsilonP: |
3715 | case kUpsilonPP: | |
34f60c01 | 3716 | case kUpsilon: |
bb6e81ac | 3717 | if (sname == "Vogt" || sname == "Vogt PbPb") { |
05932df6 | 3718 | func=YUpsilonPbPb; |
bb6e81ac | 3719 | } else if (sname == "Vogt pp") { |
3720 | func = YUpsilonPP; | |
7455632e | 3721 | } else if (sname == "pp 7") { |
3722 | func=YUpsilonPP7000; | |
3723 | } else if (sname == "pp 2.76") { | |
3724 | func=YUpsilonPP2760; | |
3725 | } else if (sname == "PbPb 2.76") { | |
3726 | func=YUpsilonPbPb2760; | |
3727 | } else if (sname == "PbPb 2.76c1") { | |
3728 | func=YUpsilonPbPb2760c1; | |
3729 | } else if (sname == "PbPb 2.76c2") { | |
3730 | func=YUpsilonPbPb2760c2; | |
3731 | } else if (sname == "PbPb 2.76c3") { | |
3732 | func=YUpsilonPbPb2760c3; | |
3733 | } else if (sname == "PbPb 2.76c4") { | |
3734 | func=YUpsilonPbPb2760c4; | |
3735 | } else if (sname == "PbPb 2.76c5") { | |
3736 | func=YUpsilonPbPb2760c5; | |
3737 | } else if (sname == "PbPb 2.76c6") { | |
3738 | func=YUpsilonPbPb2760c6; | |
3739 | } else if (sname == "PbPb 2.76c7") { | |
3740 | func=YUpsilonPbPb2760c7; | |
3741 | } else if (sname == "PbPb 2.76c8") { | |
3742 | func=YUpsilonPbPb2760c8; | |
3743 | } else if (sname == "PbPb 2.76c9") { | |
3744 | func=YUpsilonPbPb2760c9; | |
3745 | } else if (sname == "PbPb 2.76c10") { | |
3746 | func=YUpsilonPbPb2760c10; | |
3747 | } else if (sname == "PbPb 2.76c11") { | |
3748 | func=YUpsilonPbPb2760c11; | |
3749 | } else if (sname == "pp 7 poly") { | |
3750 | func=YUpsilonPPpoly7000; | |
3751 | } else if (sname == "pp 2.76 poly") { | |
3752 | func=YUpsilonPPpoly2760; | |
3753 | } else if (sname == "pp 8.8") { | |
3754 | func=YUpsilonPP8800; | |
3755 | } else if (sname == "pPb 8.8") { | |
3756 | func=YUpsilonPPb8800; | |
3757 | } else if (sname == "pPb 8.8c1") { | |
3758 | func=YUpsilonPPb8800c1; | |
3759 | } else if (sname == "pPb 8.8c2") { | |
3760 | func=YUpsilonPPb8800c2; | |
3761 | } else if (sname == "pPb 8.8c3") { | |
3762 | func=YUpsilonPPb8800c3; | |
3763 | } else if (sname == "pPb 8.8c4") { | |
3764 | func=YUpsilonPPb8800c4; | |
3765 | } else if (sname == "Pbp 8.8") { | |
3766 | func=YUpsilonPbP8800; | |
3767 | } else if (sname == "Pbp 8.8c1") { | |
3768 | func=YUpsilonPbP8800c1; | |
3769 | } else if (sname == "Pbp 8.8c2") { | |
3770 | func=YUpsilonPbP8800c2; | |
3771 | } else if (sname == "Pbp 8.8c3") { | |
3772 | func=YUpsilonPbP8800c3; | |
3773 | } else if (sname == "Pbp 8.8c4") { | |
3774 | func=YUpsilonPbP8800c4; | |
0e137c25 | 3775 | } else if (sname == "CDF scaled") { |
3776 | func=YUpsilonCDFscaled; | |
9ff13849 | 3777 | } else if (sname == "CDF pp") { |
3778 | func=YUpsilonCDFscaledPP; | |
b33adf51 | 3779 | } else if (sname == "CDF pp 10") { |
3780 | func=YUpsilonCDFscaledPP10; | |
9fd56238 | 3781 | } else if (sname == "CDF pp 8.8") { |
3782 | func=YUpsilonCDFscaledPP9; | |
3783 | } else if (sname == "CDF pp 7") { | |
3784 | func=YUpsilonCDFscaledPP7; | |
3785 | } else if (sname == "CDF pp 3.94") { | |
3786 | func=YUpsilonCDFscaledPP4; | |
3787 | } else if (sname == "CDF pPb 8.8") { | |
3788 | func=YUpsilonCDFscaledPPb9; | |
3789 | } else if (sname == "CDF Pbp 8.8") { | |
3790 | func=YUpsilonCDFscaledPbP9; | |
3791 | } else if (sname == "CDF PbPb 3.94") { | |
3792 | func=YUpsilonCDFscaledPbPb4; | |
4ca8d070 | 3793 | } else if (sname == "Flat") { |
3794 | func=YUpsilonFlat; | |
05932df6 | 3795 | } else { |
3796 | func=YUpsilon; | |
3797 | } | |
fe4da5cc | 3798 | break; |
34f60c01 | 3799 | case kCharm: |
9e9ae065 | 3800 | if (sname == "F0M0S0 pp") { |
3801 | func=YCharmF0M0S0PP; | |
3802 | } else if (sname == "F1M0S0 pp") { | |
3803 | func=YCharmF1M0S0PP; | |
3804 | } else if (sname == "F2M0S0 pp") { | |
3805 | func=YCharmF2M0S0PP; | |
3806 | } else if (sname == "F0M1S0 pp") { | |
3807 | func=YCharmF0M1S0PP; | |
3808 | } else if (sname == "F0M2S0 pp") { | |
3809 | func=YCharmF0M2S0PP; | |
3810 | } else if (sname == "F0M0S1 pp") { | |
3811 | func=YCharmF0M0S1PP; | |
3812 | } else if (sname == "F0M0S2 pp") { | |
3813 | func=YCharmF0M0S2PP; | |
3814 | } else if (sname == "F0M0S3 pp") { | |
3815 | func=YCharmF0M0S3PP; | |
3816 | } else if (sname == "F0M0S4 pp") { | |
3817 | func=YCharmF0M0S4PP; | |
3818 | } else if (sname == "F0M0S5 pp") { | |
3819 | func=YCharmF0M0S5PP; | |
3820 | } else if (sname == "F0M0S6 pp") { | |
3821 | func=YCharmF0M0S6PP; | |
3822 | } else { | |
3823 | func=YCharm; | |
3824 | } | |
fe4da5cc | 3825 | break; |
34f60c01 | 3826 | case kBeauty: |
9e9ae065 | 3827 | if (sname == "F0M0S0 pp") { |
3828 | func=YBeautyF0M0S0PP; | |
3829 | } else if (sname == "F1M0S0 pp") { | |
3830 | func=YBeautyF1M0S0PP; | |
3831 | } else if (sname == "F2M0S0 pp") { | |
3832 | func=YBeautyF2M0S0PP; | |
3833 | } else if (sname == "F0M1S0 pp") { | |
3834 | func=YBeautyF0M1S0PP; | |
3835 | } else if (sname == "F0M2S0 pp") { | |
3836 | func=YBeautyF0M2S0PP; | |
3837 | } else if (sname == "F0M0S1 pp") { | |
3838 | func=YBeautyF0M0S1PP; | |
3839 | } else if (sname == "F0M0S2 pp") { | |
3840 | func=YBeautyF0M0S2PP; | |
3841 | } else if (sname == "F0M0S3 pp") { | |
3842 | func=YBeautyF0M0S3PP; | |
3843 | } else if (sname == "F0M0S4 pp") { | |
3844 | func=YBeautyF0M0S4PP; | |
3845 | } else if (sname == "F0M0S5 pp") { | |
3846 | func=YBeautyF0M0S5PP; | |
3847 | } else if (sname == "F0M0S6 pp") { | |
3848 | func=YBeautyF0M0S6PP; | |
3849 | } else { | |
3850 | func=YBeauty; | |
3851 | } | |
fe4da5cc | 3852 | break; |
34f60c01 | 3853 | case kPion: |
f9a1ce31 | 3854 | if (sname == "2010 Pos PP") { |
3855 | func=YKaonPion2010PP; | |
3856 | } else if (sname == "2010 Neg PP") { | |
3857 | func=YKaonPion2010PP; | |
3858 | } else { | |
3859 | func=YPion; | |
3860 | } | |
753690b0 | 3861 | break; |
34f60c01 | 3862 | case kKaon: |
f9a1ce31 | 3863 | if (sname == "2010 Pos PP") { |
3864 | func=YKaonPion2010PP; | |
3865 | } else if (sname == "2010 Neg PP") { | |
3866 | func=YKaonPion2010PP; | |
3867 | } else { | |
3868 | func=YKaon; | |
3869 | } | |
753690b0 | 3870 | break; |
6b450aa0 | 3871 | case kChic0: |
3872 | func=YChic0; | |
00935af2 | 3873 | break; |
6b450aa0 | 3874 | case kChic: |
3875 | func=YChic; | |
00935af2 | 3876 | break; |
119b35c7 | 3877 | default: |
3878 | func=0; | |
3879 | printf("<AliGenMUONlib::GetY> unknown parametrisation\n"); | |
fe4da5cc | 3880 | } |
3881 | return func; | |
3882 | } | |
00935af2 | 3883 | |
3884 | // | |
3885 | // Chi | |
3886 | // | |
3887 | // | |
3888 | // pt-distribution | |
3889 | //____________________________________________________________ | |
75e0cc59 | 3890 | Double_t AliGenMUONlib::PtChic0( const Double_t *px, const Double_t */*dummy*/) |
00935af2 | 3891 | { |
3892 | // Chi_c1 pT | |
3893 | const Double_t kpt0 = 4.; | |
3894 | const Double_t kxn = 3.6; | |
3895 | Double_t x=*px; | |
3896 | // | |
3897 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3898 | return x/TMath::Power(pass1,kxn); | |
3899 | } | |
75e0cc59 | 3900 | Double_t AliGenMUONlib::PtChic1( const Double_t *px, const Double_t */*dummy*/) |
00935af2 | 3901 | { |
3902 | // Chi_c1 pT | |
3903 | const Double_t kpt0 = 4.; | |
3904 | const Double_t kxn = 3.6; | |
3905 | Double_t x=*px; | |
3906 | // | |
3907 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3908 | return x/TMath::Power(pass1,kxn); | |
3909 | } | |
75e0cc59 | 3910 | Double_t AliGenMUONlib::PtChic2( const Double_t *px, const Double_t */*dummy*/) |
00935af2 | 3911 | { |
3912 | // Chi_c2 pT | |
3913 | const Double_t kpt0 = 4.; | |
3914 | const Double_t kxn = 3.6; | |
3915 | Double_t x=*px; | |
3916 | // | |
3917 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3918 | return x/TMath::Power(pass1,kxn); | |
3919 | } | |
75e0cc59 | 3920 | Double_t AliGenMUONlib::PtChic( const Double_t *px, const Double_t */*dummy*/) |
00935af2 | 3921 | { |
3922 | // Chi_c family pT | |
3923 | const Double_t kpt0 = 4.; | |
3924 | const Double_t kxn = 3.6; | |
3925 | Double_t x=*px; | |
3926 | // | |
3927 | Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); | |
3928 | return x/TMath::Power(pass1,kxn); | |
3929 | } | |
3930 | ||
3931 | // | |
3932 | // y-distribution | |
3933 | //____________________________________________________________ | |
75e0cc59 | 3934 | Double_t AliGenMUONlib::YChic0(const Double_t *py, const Double_t */*dummy*/) |
00935af2 | 3935 | { |
3936 | // Chi-1c y | |
3937 | const Double_t ky0 = 4.; | |
3938 | const Double_t kb=1.; | |
3939 | Double_t yj; | |
3940 | Double_t y=TMath::Abs(*py); | |
3941 | // | |
3942 | if (y < ky0) | |
3943 | yj=kb; | |
3944 | else | |
3945 | yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); | |
3946 | return yj; | |
3947 | } | |
3948 | ||
75e0cc59 | 3949 | Double_t AliGenMUONlib::YChic1(const Double_t *py, const Double_t */*dummy*/) |
00935af2 | 3950 | { |
3951 | // Chi-1c y | |
3952 | const Double_t ky0 = 4.; | |
3953 | const Double_t kb=1.; | |
3954 | Double_t yj; | |
3955 | Double_t y=TMath::Abs(*py); | |
3956 | // | |
3957 | if (y < ky0) | |
3958 | yj=kb; | |
3959 | else | |
3960 | yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); | |
3961 | return yj; | |
3962 | } | |
3963 | ||
75e0cc59 | 3964 | Double_t AliGenMUONlib::YChic2(const Double_t *py, const Double_t */*dummy*/) |
00935af2 | 3965 | { |
3966 | // Chi-2c y | |
3967 | const Double_t ky0 = 4.; | |
3968 | const Double_t kb=1.; | |
3969 | Double_t yj; | |
3970 | Double_t y=TMath::Abs(*py); | |
3971 | // | |
3972 | if (y < ky0) | |
3973 | yj=kb; | |
3974 | else | |
3975 | yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); | |
3976 | return yj; | |
3977 | } | |
3978 | ||
75e0cc59 | 3979 | Double_t AliGenMUONlib::YChic(const Double_t *py, const Double_t */*dummy*/) |
00935af2 | 3980 | { |
3981 | // Chi_c family y | |
3982 | const Double_t ky0 = 4.; | |
3983 | const Double_t kb=1.; | |
3984 | Double_t yj; | |
3985 | Double_t y=TMath::Abs(*py); | |
3986 | // | |
3987 | if (y < ky0) | |
3988 | yj=kb; | |
3989 | else | |
3990 | yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); | |
3991 | return yj; | |
3992 | } | |
3993 | ||
3994 | // particle composition | |
3995 | // | |
6b450aa0 | 3996 | Int_t AliGenMUONlib::IpChic0(TRandom *) |
00935af2 | 3997 | { |
3998 | // Chi composition | |
3999 | return 10441; | |
4000 | } | |
4001 | // | |
6b450aa0 | 4002 | Int_t AliGenMUONlib::IpChic1(TRandom *) |
00935af2 | 4003 | { |
4004 | // Chi composition | |
4005 | return 20443; | |
4006 | } | |
6b450aa0 | 4007 | Int_t AliGenMUONlib::IpChic2(TRandom *) |
00935af2 | 4008 | { |
4009 | // Chi_c2 prime composition | |
4010 | return 445; | |
4011 | } | |
6b450aa0 | 4012 | Int_t AliGenMUONlib::IpChic(TRandom *) |
00935af2 | 4013 | { |
4014 | // Chi composition | |
4015 | Int_t ip; | |
4016 | Float_t r = gRandom->Rndm(); | |
4017 | if (r < 0.001) { | |
4018 | ip = 10441; | |
4019 | } else if( r < 0.377 ) { | |
4020 | ip = 20443; | |
4021 | } else { | |
4022 | ip = 445; | |
4023 | } | |
4024 | return ip; | |
4025 | } | |
4026 | ||
4027 | ||
4028 | //_____________________________________________________________ | |
4029 | ||
65fb704d | 4030 | typedef Int_t (*GenFuncIp) (TRandom *); |
f9a1ce31 | 4031 | GenFuncIp AliGenMUONlib::GetIp(Int_t param, const char* tname) const |
fe4da5cc | 4032 | { |
d90f80fd | 4033 | // Return pointer to particle type parameterisation |
f9a1ce31 | 4034 | TString sname = TString(tname); |
fe4da5cc | 4035 | GenFuncIp func; |
753690b0 | 4036 | switch (param) |
fe4da5cc | 4037 | { |
34f60c01 | 4038 | case kPhi: |
fe4da5cc | 4039 | func=IpPhi; |
4040 | break; | |
89512a3b | 4041 | case kEta: |
4042 | func=IpEta; | |
4043 | break; | |
4044 | case kOmega: | |
4045 | func=IpOmega; | |
4046 | break; | |
0ad09590 | 4047 | case kJpsiFamily: |
4048 | func=IpJpsiFamily; | |
4049 | break; | |
88e5db43 | 4050 | case kPsiP: |
4051 | func=IpPsiP; | |
4052 | break; | |
34f60c01 | 4053 | case kJpsi: |
17d28ba5 | 4054 | case kJpsiFromB: |
fe4da5cc | 4055 | func=IpJpsi; |
4056 | break; | |
34f60c01 | 4057 | case kUpsilon: |
fe4da5cc | 4058 | func=IpUpsilon; |
4059 | break; | |
0ad09590 | 4060 | case kUpsilonFamily: |
4061 | func=IpUpsilonFamily; | |
4062 | break; | |
88e5db43 | 4063 | case kUpsilonP: |
4064 | func=IpUpsilonP; | |
4065 | break; | |
4066 | case kUpsilonPP: | |
4067 | func=IpUpsilonPP; | |
4068 | break; | |
34f60c01 | 4069 | case kCharm: |
fe4da5cc | 4070 | func=IpCharm; |
4071 | break; | |
34f60c01 | 4072 | case kBeauty: |
fe4da5cc | 4073 | func=IpBeauty; |
4074 | break; | |
34f60c01 | 4075 | case kPion: |
f9a1ce31 | 4076 | if (sname == "2010 Pos PP") { |
4077 | func=IpPionPos; | |
4078 | } else if (sname == "2010 Neg PP") { | |
4079 | func=IpPionNeg; | |
4080 | } else { | |
4081 | func=IpPion; | |
4082 | } | |
753690b0 | 4083 | break; |
34f60c01 | 4084 | case kKaon: |
f9a1ce31 | 4085 | if (sname == "2010 Pos PP") { |
4086 | func=IpKaonPos; | |
4087 | } else if (sname == "2010 Neg PP") { | |
4088 | func=IpKaonNeg; | |
4089 | } else { | |
4090 | func=IpKaon; | |
4091 | } | |
753690b0 | 4092 | break; |
6b450aa0 | 4093 | case kChic0: |
4094 | func=IpChic0; | |
00935af2 | 4095 | break; |
6b450aa0 | 4096 | case kChic1: |
4097 | func=IpChic1; | |
00935af2 | 4098 | break; |
6b450aa0 | 4099 | case kChic2: |
4100 | func=IpChic2; | |
00935af2 | 4101 | break; |
6b450aa0 | 4102 | case kChic: |
4103 | func=IpChic; | |
00935af2 | 4104 | break; |
119b35c7 | 4105 | default: |
4106 | func=0; | |
4107 | printf("<AliGenMUONlib::GetIp> unknown parametrisation\n"); | |
fe4da5cc | 4108 | } |
4109 | return func; | |
4110 | } | |
4111 | ||
4112 | ||
753690b0 | 4113 | |
05932df6 | 4114 | Float_t AliGenMUONlib::Interpolate(Float_t x, Float_t* y, Float_t x0, |
4115 | Float_t dx, | |
4116 | Int_t n, Int_t no) | |
4117 | { | |
4118 | // | |
4119 | // Neville's alorithm for interpolation | |
4120 | // | |
4121 | // x: x-value | |
4122 | // y: Input array | |
4123 | // x0: minimum x | |
4124 | // dx: step size | |
4125 | // n: number of data points | |
4126 | // no: order of polynom | |
4127 | // | |
4128 | Float_t* c = new Float_t[n]; | |
4129 | Float_t* d = new Float_t[n]; | |
4130 | Int_t m, i; | |
4131 | for (i = 0; i < n; i++) { | |
4132 | c[i] = y[i]; | |
4133 | d[i] = y[i]; | |
4134 | } | |
4135 | ||
4136 | Int_t ns = int((x - x0)/dx); | |
4137 | ||
4138 | Float_t y1 = y[ns]; | |
4139 | ns--; | |
4140 | for (m = 0; m < no; m++) { | |
4141 | for (i = 0; i < n-m; i++) { | |
4142 | Float_t ho = x0 + Float_t(i) * dx - x; | |
4143 | Float_t hp = x0 + Float_t(i+m+1) * dx - x; | |
4144 | Float_t w = c[i+1] - d[i]; | |
4145 | Float_t den = ho-hp; | |
4146 | den = w/den; | |
4147 | d[i] = hp * den; | |
4148 | c[i] = ho * den; | |
4149 | } | |
4150 | Float_t dy; | |
4151 | ||
4152 | if (2*ns < (n-m-1)) { | |
4153 | dy = c[ns+1]; | |
4154 | } else { | |
4155 | dy = d[ns--]; | |
4156 | } | |
4157 | y1 += dy;} | |
4158 | delete[] c; | |
4159 | delete[] d; | |
4160 | ||
4161 | return y1; | |
4162 | } | |
4163 | ||
f9a1ce31 | 4164 | //============================================================================= |
4165 | Double_t AliGenMUONlib::PtPionPos2010PP(const Double_t *px, const Double_t* /*dummy*/) | |
4166 | { | |
4167 | // Pos pion | |
4168 | const Double_t par[3] = {2.27501, 0.116141, 5.59591}; | |
4169 | Double_t pt = px[0]; | |
4170 | Double_t m0 = TDatabasePDG::Instance()->GetParticle(211)->Mass(); | |
4171 | Double_t mt = TMath::Sqrt(m0*m0 + pt*pt); | |
4172 | Double_t nc = par[1]*par[2]; | |
4173 | Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0); | |
4174 | Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]); | |
4175 | Double_t fn = par[0] * pt * t1 * t2; | |
4176 | return fn; | |
4177 | } | |
4178 | ||
4179 | //============================================================================= | |
4180 | Double_t AliGenMUONlib::PtPionNeg2010PP(const Double_t *px, const Double_t* /*dummy*/) | |
4181 | { | |
4182 | // Neg pion | |
4183 | const Double_t par[3] = {2.25188, 0.12176, 5.91166}; | |
4184 | Double_t pt = px[0]; | |
4185 | Double_t m0 = TDatabasePDG::Instance()->GetParticle(211)->Mass(); | |
4186 | Double_t mt = TMath::Sqrt(m0*m0 + pt*pt); | |
4187 | Double_t nc = par[1]*par[2]; | |
4188 | Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0); | |
4189 | Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]); | |
4190 | Double_t fn = par[0] * pt * t1 * t2; | |
4191 | return fn; | |
4192 | } | |
4193 | ||
4194 | //============================================================================= | |
4195 | Double_t AliGenMUONlib::PtKaonPos2010PP(const Double_t *px, const Double_t* /*dummy*/) | |
4196 | { | |
4197 | // Pos kaons | |
4198 | const Double_t par[3] = {0.279386, 0.195466, 6.59587}; | |
4199 | Double_t pt = px[0]; | |
4200 | Double_t m0 = TDatabasePDG::Instance()->GetParticle(321)->Mass(); | |
4201 | Double_t mt = TMath::Sqrt(m0*m0 + pt*pt); | |
4202 | Double_t nc = par[1]*par[2]; | |
4203 | Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0); | |
4204 | Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]); | |
4205 | Double_t fn = par[0] * pt * t1 * t2; | |
4206 | return fn; | |
4207 | } | |
4208 | ||
4209 | //============================================================================= | |
4210 | Double_t AliGenMUONlib::PtKaonNeg2010PP(const Double_t *px, const Double_t* /*dummy*/) | |
4211 | { | |
4212 | // Neg kaons | |
4213 | const Double_t par[3] = {0.278927, 0.189049, 6.43006}; | |
4214 | Double_t pt = px[0]; | |
4215 | Double_t m0 = TDatabasePDG::Instance()->GetParticle(321)->Mass(); | |
4216 | Double_t mt = TMath::Sqrt(m0*m0 + pt*pt); | |
4217 | Double_t nc = par[1]*par[2]; | |
4218 | Double_t t1 = (par[2]-1.)/nc/(nc/(par[2]-2.)+m0); | |
4219 | Double_t t2 = TMath::Power(1.+(mt-m0)/nc, -1.*par[2]); | |
4220 | Double_t fn = par[0] * pt * t1 * t2; | |
4221 | return fn; | |
4222 | } | |
4223 | ||
4224 | //============================================================================= | |
4225 | Double_t AliGenMUONlib::YKaonPion2010PP(const Double_t *px, const Double_t* /*dummy*/) | |
4226 | { | |
4227 | // pions and kaons | |
4228 | Double_t y = px[0]; | |
4229 | Double_t sigma = 2.35; | |
4230 | Double_t kernal = y/2./sigma; | |
4231 | Double_t fxn = TMath::Exp(-1.*kernal*kernal); | |
4232 | return fxn; | |
4233 | } | |
753690b0 | 4234 | |
f9a1ce31 | 4235 | //============================================================================= |
4236 | Int_t AliGenMUONlib::IpPionPos(TRandom *) | |
4237 | { | |
4238 | // Pos pions | |
4239 | return 211; | |
4240 | } | |
4241 | ||
4242 | //============================================================================= | |
4243 | Int_t AliGenMUONlib::IpPionNeg(TRandom *) | |
4244 | { | |
4245 | // Neg pions | |
4246 | return -211; | |
4247 | } | |
4248 | ||
4249 | //============================================================================= | |
4250 | Int_t AliGenMUONlib::IpKaonPos(TRandom *) | |
4251 | { | |
4252 | // pos Kaons | |
4253 | return 321; | |
4254 | } | |
4255 | ||
4256 | //============================================================================= | |
4257 | Int_t AliGenMUONlib::IpKaonNeg(TRandom *) | |
4258 | { | |
4259 | // neg Kaons | |
4260 | return -321; | |
4261 | } |