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b6d061b7 | 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 | ||
16 | /* $Id$ */ | |
17 | ||
a42548b0 | 18 | |
19 | // Implementation of the class to calculate the parton energy loss | |
20 | // Based on the "BDMPS" quenching weights by C.A.Salgado and U.A.Wiedemann | |
21 | // References: | |
22 | // C.A.Salgado and U.A.Wiedemann, Phys.Rev.D68 (2003) 014008 [hep-ph/0302184] | |
23 | // A.Dainese, Eur.Phys.J.C, in press, [nucl-ex/0312005] | |
b6d061b7 | 24 | // |
7a76a12e | 25 | // |
b6d061b7 | 26 | // Origin: C. Loizides constantinos.loizides@cern.ch |
27 | // A. Dainese andrea.dainese@pd.infn.it | |
7a76a12e | 28 | // |
7258586f | 29 | //=================== Added by C. Loizides 27/03/04 =========================== |
30 | // | |
a42548b0 | 31 | // Added support for k-Quenching, where wc=I1*k and R=2I1^2/I0*k |
32 | // (see the AliFastGlauber class for definition of I0/I1) | |
7258586f | 33 | //----------------------------------------------------------------------------- |
b6d061b7 | 34 | |
35 | #include <Riostream.h> | |
7258586f | 36 | #include <TF1.h> |
b6d061b7 | 37 | #include <TH1F.h> |
38 | #include <TH2F.h> | |
39 | #include <TCanvas.h> | |
40 | #include <TGraph.h> | |
41 | #include <TROOT.h> | |
42 | #include <TSystem.h> | |
43 | #include <TLegend.h> | |
44 | #include "AliQuenchingWeights.h" | |
45 | ||
46 | ClassImp(AliQuenchingWeights) | |
47 | ||
48 | // conversion from fm to GeV^-1: 1 fm = fmGeV GeV^-1 | |
7a76a12e | 49 | const Double_t AliQuenchingWeights::fgkConvFmToInvGeV = 1./0.197; |
b6d061b7 | 50 | |
51 | // maximum value of R | |
7a76a12e | 52 | const Double_t AliQuenchingWeights::fgkRMax = 1.e6; |
b6d061b7 | 53 | |
7258586f | 54 | // hist binning |
2552c51a | 55 | const Int_t AliQuenchingWeights::fgkBins = 1300; |
56 | const Double_t AliQuenchingWeights::fgkMaxBin = 1.3; | |
7258586f | 57 | |
b6d061b7 | 58 | // counter for histogram labels |
7a76a12e | 59 | Int_t AliQuenchingWeights::fgCounter = 0; |
b6d061b7 | 60 | |
7258586f | 61 | |
b6d061b7 | 62 | AliQuenchingWeights::AliQuenchingWeights() |
e6e76983 | 63 | : TObject(), |
64 | fInstanceNumber(fgCounter++), | |
65 | fMultSoft(kTRUE), | |
66 | fECMethod(kDefault), | |
67 | fQTransport(1.), | |
68 | fMu(1.), | |
69 | fK(4.e5), | |
70 | fLengthMax(20), | |
71 | fLengthMaxOld(0), | |
72 | fHistos(0), | |
73 | fHisto(0), | |
74 | fTablesLoaded(kFALSE) | |
b6d061b7 | 75 | { |
7a76a12e | 76 | //default constructor |
7258586f | 77 | Char_t name[100]; |
78 | sprintf(name,"hhistoqw_%d",fInstanceNumber); | |
2552c51a | 79 | fHisto = new TH1F(name,"",fgkBins,0.,fgkMaxBin); |
80 | for(Int_t bin=1;bin<=fgkBins;bin++) | |
7258586f | 81 | fHisto->SetBinContent(bin,0.); |
b6d061b7 | 82 | } |
83 | ||
84 | AliQuenchingWeights::AliQuenchingWeights(const AliQuenchingWeights& a) | |
e6e76983 | 85 | : TObject(), |
86 | fInstanceNumber(fgCounter++), | |
87 | fMultSoft(kTRUE), | |
88 | fECMethod(kDefault), | |
89 | fQTransport(1.), | |
90 | fMu(1.), | |
91 | fK(4.e5), | |
92 | fLengthMax(20), | |
93 | fLengthMaxOld(0), | |
94 | fHistos(0), | |
95 | fHisto(0), | |
96 | fTablesLoaded(kFALSE) | |
b6d061b7 | 97 | { |
7258586f | 98 | // copy constructor |
7a76a12e | 99 | |
b6d061b7 | 100 | fTablesLoaded=kFALSE; |
101 | fHistos=0; | |
102 | fLengthMaxOld=0; | |
103 | fMultSoft=a.GetMultSoft();; | |
104 | fMu=a.GetMu(); | |
7258586f | 105 | fK=a.GetK(); |
b6d061b7 | 106 | fQTransport=a.GetQTransport(); |
107 | fECMethod=(kECMethod)a.GetECMethod(); | |
108 | fLengthMax=a.GetLengthMax(); | |
7a76a12e | 109 | fInstanceNumber=fgCounter++; |
7258586f | 110 | Char_t name[100]; |
111 | sprintf(name,"hhistoqw_%d",fInstanceNumber); | |
2552c51a | 112 | fHisto = new TH1F(name,"",fgkBins,0.,fgkMaxBin); |
113 | for(Int_t bin=1;bin<=fgkBins;bin++) | |
7258586f | 114 | fHisto->SetBinContent(bin,0.); |
115 | ||
b6d061b7 | 116 | //Missing in the class is the pathname |
117 | //to the tables, can be added if needed | |
118 | } | |
119 | ||
120 | AliQuenchingWeights::~AliQuenchingWeights() | |
121 | { | |
122 | Reset(); | |
7258586f | 123 | delete fHisto; |
b6d061b7 | 124 | } |
125 | ||
126 | void AliQuenchingWeights::Reset() | |
127 | { | |
7a76a12e | 128 | //reset tables if there were used |
129 | ||
b6d061b7 | 130 | if(!fHistos) return; |
9d851d20 | 131 | for(Int_t l=0;l<4*fLengthMaxOld;l++){ |
b6d061b7 | 132 | delete fHistos[0][l]; |
133 | delete fHistos[1][l]; | |
134 | } | |
135 | delete[] fHistos; | |
136 | fHistos=0; | |
137 | fLengthMaxOld=0; | |
138 | } | |
139 | ||
140 | void AliQuenchingWeights::SetECMethod(kECMethod type) | |
141 | { | |
7a76a12e | 142 | //set energy constraint method |
143 | ||
b6d061b7 | 144 | fECMethod=type; |
145 | if(fECMethod==kDefault) | |
146 | Info("SetECMethod","Energy Constraint Method set to DEFAULT:\nIf (sampled energy loss > parton energy) then sampled energy loss = parton energy."); | |
b677de56 | 147 | else if(fECMethod==kReweight) |
b6d061b7 | 148 | Info("SetECMethod","Energy Constraint Method set to REWEIGHT:\nRequire sampled energy loss <= parton energy."); |
b677de56 | 149 | else Info("SetECMethod","Energy Constraint Method set to REWEIGHTCONT:\nRequire sampled energy loss <= parton energy (only implemented for FAST method."); |
b6d061b7 | 150 | } |
151 | ||
152 | Int_t AliQuenchingWeights::InitMult(const Char_t *contall,const Char_t *discall) | |
153 | { | |
154 | // read in tables for multiple scattering approximation | |
155 | // path to continuum and to discrete part | |
156 | ||
157 | fTablesLoaded = kFALSE; | |
158 | fMultSoft=kTRUE; | |
159 | ||
160 | Char_t fname[1024]; | |
161 | sprintf(fname,"%s",gSystem->ExpandPathName(contall)); | |
bb545331 | 162 | //PH ifstream fincont(fname); |
163 | fstream fincont(fname,ios::in); | |
164 | #if defined(__HP_aCC) || defined(__DECCXX) | |
165 | if(!fincont.rdbuf()->is_open()) return -1; | |
166 | #else | |
b6d061b7 | 167 | if(!fincont.is_open()) return -1; |
bb545331 | 168 | #endif |
b6d061b7 | 169 | |
170 | Int_t nn=0; //quarks | |
171 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> | |
172 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> | |
7a76a12e | 173 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>>fcaq[13][nn]>> |
174 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>>fcaq[18][nn]>> | |
175 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>>fcaq[23][nn]>> | |
176 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>>fcaq[28][nn]>> | |
177 | fcaq[29][nn]>>fcaq[30][nn]>>fcaq[31][nn]>>fcaq[32][nn]>>fcaq[33][nn]) | |
b6d061b7 | 178 | { |
179 | nn++; | |
180 | if(nn==261) break; | |
181 | } | |
182 | ||
183 | nn=0; //gluons | |
184 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> | |
185 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> | |
7a76a12e | 186 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>>fcag[13][nn]>> |
187 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>>fcag[18][nn]>> | |
188 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>>fcag[23][nn]>> | |
189 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>>fcag[28][nn]>> | |
190 | fcag[29][nn]>>fcag[30][nn]>>fcag[31][nn]>>fcag[32][nn]>>fcag[33][nn]) | |
191 | { | |
b6d061b7 | 192 | nn++; |
193 | if(nn==261) break; | |
194 | } | |
195 | fincont.close(); | |
196 | ||
197 | sprintf(fname,"%s",gSystem->ExpandPathName(discall)); | |
bb545331 | 198 | //PH ifstream findisc(fname); |
199 | fstream findisc(fname,ios::in); | |
200 | #if defined(__HP_aCC) || defined(__DECCXX) | |
201 | if(!findisc.rdbuf()->is_open()) return -1; | |
202 | #else | |
b6d061b7 | 203 | if(!findisc.is_open()) return -1; |
bb545331 | 204 | #endif |
b6d061b7 | 205 | |
206 | nn=0; //quarks | |
207 | while(findisc>>frrr[nn]>>fdaq[nn]) { | |
208 | nn++; | |
7a76a12e | 209 | if(nn==34) break; |
b6d061b7 | 210 | } |
211 | nn=0; //gluons | |
212 | while(findisc>>frrrg[nn]>>fdag[nn]) { | |
213 | nn++; | |
7a76a12e | 214 | if(nn==34) break; |
b6d061b7 | 215 | } |
216 | findisc.close(); | |
217 | fTablesLoaded = kTRUE; | |
218 | return 0; | |
219 | } | |
220 | ||
221 | /* | |
222 | C*************************************************************************** | |
223 | C Quenching Weights for Multiple Soft Scattering | |
224 | C February 10, 2003 | |
225 | C | |
226 | C Refs: | |
227 | C | |
228 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. | |
229 | C | |
230 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. | |
231 | C | |
232 | C | |
233 | C This package contains quenching weights for gluon radiation in the | |
234 | C multiple soft scattering approximation. | |
235 | C | |
236 | C swqmult returns the quenching weight for a quark (ipart=1) or | |
237 | C a gluon (ipart=2) traversing a medium with transport coeficient q and | |
238 | C length L. The input values are rrrr=0.5*q*L^3 and xxxx=w/wc, where | |
239 | C wc=0.5*q*L^2 and w is the energy radiated. The output values are | |
240 | C the continuous and discrete (prefactor of the delta function) parts | |
241 | C of the quenching weights. | |
242 | C | |
243 | C In order to use this routine, the files cont.all and disc.all need to be | |
244 | C in the working directory. | |
245 | C | |
246 | C An initialization of the tables is needed by doing call initmult before | |
247 | C using swqmult. | |
248 | C | |
249 | C Please, send us any comment: | |
250 | C | |
7a76a12e | 251 | C urs.wiedemann@cern.ch |
252 | C carlos.salgado@cern.ch | |
253 | C | |
254 | C | |
b6d061b7 | 255 | C------------------------------------------------------------------- |
256 | ||
257 | SUBROUTINE swqmult(ipart,rrrr,xxxx,continuous,discrete) | |
258 | * | |
7a76a12e | 259 | REAL*8 xx(400), daq(34), caq(34,261), rrr(34) |
b6d061b7 | 260 | COMMON /dataqua/ xx, daq, caq, rrr |
261 | * | |
7a76a12e | 262 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
b6d061b7 | 263 | COMMON /dataglu/ xxg, dag, cag, rrrg |
264 | ||
265 | REAL*8 rrrr,xxxx, continuous, discrete | |
266 | REAL*8 rrin, xxin | |
267 | INTEGER nrlow, nrhigh, nxlow, nxhigh | |
268 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh | |
269 | REAL*8 xfraclow, xfrachigh | |
270 | REAL*8 clow, chigh | |
271 | * | |
7a76a12e | 272 | |
273 | continuous=0.d0 | |
274 | discrete=0.d0 | |
275 | ||
b6d061b7 | 276 | rrin = rrrr |
277 | xxin = xxxx | |
278 | * | |
7a76a12e | 279 | do 666, nr=1,34 |
b6d061b7 | 280 | if (rrin.lt.rrr(nr)) then |
281 | rrhigh = rrr(nr) | |
282 | else | |
283 | rrhigh = rrr(nr-1) | |
284 | rrlow = rrr(nr) | |
285 | nrlow = nr | |
286 | nrhigh = nr-1 | |
287 | goto 665 | |
288 | endif | |
289 | 666 enddo | |
290 | 665 continue | |
291 | * | |
292 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) | |
293 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) | |
7a76a12e | 294 | if (rrin.gt.10000d0) then |
295 | rfraclow = dlog(rrhigh/rrin)/dlog(rrhigh/rrlow) | |
296 | rfrachigh = dlog(rrin/rrlow)/dlog(rrhigh/rrlow) | |
297 | endif | |
298 | * | |
299 | if (ipart.eq.1.and.rrin.ge.rrr(1)) then | |
300 | nrlow=1 | |
301 | nrhigh=1 | |
302 | rfraclow=1 | |
303 | rfrachigh=0 | |
304 | endif | |
305 | ||
306 | if (ipart.ne.1.and.rrin.ge.rrrg(1)) then | |
307 | nrlow=1 | |
308 | nrhigh=1 | |
309 | rfraclow=1 | |
310 | rfrachigh=0 | |
311 | endif | |
312 | ||
313 | if (xxxx.ge.xx(261)) go to 245 | |
314 | ||
315 | nxlow = int(xxin/0.01) + 1 | |
316 | nxhigh = nxlow + 1 | |
317 | xfraclow = (xx(nxhigh)-xxin)/0.01 | |
318 | xfrachigh = (xxin - xx(nxlow))/0.01 | |
b6d061b7 | 319 | * |
320 | if(ipart.eq.1) then | |
321 | clow = xfraclow*caq(nrlow,nxlow)+xfrachigh*caq(nrlow,nxhigh) | |
322 | chigh = xfraclow*caq(nrhigh,nxlow)+xfrachigh*caq(nrhigh,nxhigh) | |
323 | else | |
324 | clow = xfraclow*cag(nrlow,nxlow)+xfrachigh*cag(nrlow,nxhigh) | |
325 | chigh = xfraclow*cag(nrhigh,nxlow)+xfrachigh*cag(nrhigh,nxhigh) | |
326 | endif | |
327 | ||
328 | continuous = rfraclow*clow + rfrachigh*chigh | |
329 | ||
7a76a12e | 330 | 245 continue |
331 | ||
b6d061b7 | 332 | if(ipart.eq.1) then |
333 | discrete = rfraclow*daq(nrlow) + rfrachigh*daq(nrhigh) | |
334 | else | |
335 | discrete = rfraclow*dag(nrlow) + rfrachigh*dag(nrhigh) | |
336 | endif | |
337 | * | |
338 | END | |
339 | ||
340 | subroutine initmult | |
7a76a12e | 341 | REAL*8 xxq(400), daq(34), caq(34,261), rrr(34) |
b6d061b7 | 342 | COMMON /dataqua/ xxq, daq, caq, rrr |
343 | * | |
7a76a12e | 344 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
b6d061b7 | 345 | COMMON /dataglu/ xxg, dag, cag, rrrg |
346 | * | |
7a76a12e | 347 | OPEN(UNIT=20,FILE='contnew.all',STATUS='OLD',ERR=90) |
b6d061b7 | 348 | do 110 nn=1,261 |
349 | read (20,*) xxq(nn), caq(1,nn), caq(2,nn), caq(3,nn), | |
350 | + caq(4,nn), caq(5,nn), caq(6,nn), caq(7,nn), caq(8,nn), | |
351 | + caq(9,nn), caq(10,nn), caq(11,nn), caq(12,nn), | |
352 | + caq(13,nn), | |
353 | + caq(14,nn), caq(15,nn), caq(16,nn), caq(17,nn), | |
354 | + caq(18,nn), | |
355 | + caq(19,nn), caq(20,nn), caq(21,nn), caq(22,nn), | |
356 | + caq(23,nn), | |
357 | + caq(24,nn), caq(25,nn), caq(26,nn), caq(27,nn), | |
358 | + caq(28,nn), | |
7a76a12e | 359 | + caq(29,nn), caq(30,nn), caq(31,nn), caq(32,nn), |
360 | + caq(33,nn), caq(34,nn) | |
b6d061b7 | 361 | 110 continue |
362 | do 111 nn=1,261 | |
363 | read (20,*) xxg(nn), cag(1,nn), cag(2,nn), cag(3,nn), | |
364 | + cag(4,nn), cag(5,nn), cag(6,nn), cag(7,nn), cag(8,nn), | |
365 | + cag(9,nn), cag(10,nn), cag(11,nn), cag(12,nn), | |
366 | + cag(13,nn), | |
367 | + cag(14,nn), cag(15,nn), cag(16,nn), cag(17,nn), | |
368 | + cag(18,nn), | |
369 | + cag(19,nn), cag(20,nn), cag(21,nn), cag(22,nn), | |
370 | + cag(23,nn), | |
371 | + cag(24,nn), cag(25,nn), cag(26,nn), cag(27,nn), | |
372 | + cag(28,nn), | |
7a76a12e | 373 | + cag(29,nn), cag(30,nn), cag(31,nn), cag(32,nn), |
374 | + cag(33,nn), cag(34,nn) | |
b6d061b7 | 375 | 111 continue |
376 | close(20) | |
377 | * | |
7a76a12e | 378 | OPEN(UNIT=21,FILE='discnew.all',STATUS='OLD',ERR=91) |
379 | do 112 nn=1,34 | |
b6d061b7 | 380 | read (21,*) rrr(nn), daq(nn) |
381 | 112 continue | |
7a76a12e | 382 | do 113 nn=1,34 |
b6d061b7 | 383 | read (21,*) rrrg(nn), dag(nn) |
384 | 113 continue | |
385 | close(21) | |
386 | * | |
387 | goto 888 | |
388 | 90 PRINT*, 'input - output error' | |
389 | 91 PRINT*, 'input - output error #2' | |
390 | 888 continue | |
391 | ||
392 | end | |
393 | ||
7a76a12e | 394 | |
b6d061b7 | 395 | ======================================================================= |
396 | ||
397 | Adapted to ROOT macro by A. Dainese - 13/07/2003 | |
7a76a12e | 398 | Ported to class by C. Loizides - 12/02/2004 |
399 | New version for extended R values added - 06/03/2004 | |
b6d061b7 | 400 | */ |
401 | ||
402 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, Double_t rrrr,Double_t xxxx, | |
403 | Double_t &continuous,Double_t &discrete) const | |
404 | { | |
405 | // Calculate Multiple Scattering approx. | |
406 | // weights for given parton type, | |
407 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 | |
408 | ||
7a76a12e | 409 | //set result to zero |
410 | continuous=0.; | |
411 | discrete=0.; | |
412 | ||
7258586f | 413 | //read-in data before first call |
b6d061b7 | 414 | if(!fTablesLoaded){ |
415 | Error("CalcMult","Tables are not loaded."); | |
416 | return -1; | |
417 | } | |
418 | if(!fMultSoft){ | |
419 | Error("CalcMult","Tables are not loaded for Multiple Scattering."); | |
420 | return -1; | |
421 | } | |
422 | ||
423 | Double_t rrin = rrrr; | |
424 | Double_t xxin = xxxx; | |
425 | ||
7a76a12e | 426 | if(xxin>fxx[260]) return -1; |
b6d061b7 | 427 | Int_t nxlow = (Int_t)(xxin/0.01) + 1; |
428 | Int_t nxhigh = nxlow + 1; | |
429 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.01; | |
430 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.01; | |
431 | ||
432 | //why this? | |
7a76a12e | 433 | if(rrin<=frrr[33]) rrin = 1.05*frrr[33]; // AD |
b6d061b7 | 434 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
435 | ||
436 | Int_t nrlow=0,nrhigh=0; | |
437 | Double_t rrhigh=0,rrlow=0; | |
7a76a12e | 438 | for(Int_t nr=1; nr<=34; nr++) { |
b6d061b7 | 439 | if(rrin<frrr[nr-1]) { |
440 | rrhigh = frrr[nr-1]; | |
441 | } else { | |
442 | rrhigh = frrr[nr-1-1]; | |
443 | rrlow = frrr[nr-1]; | |
444 | nrlow = nr; | |
445 | nrhigh = nr-1; | |
446 | break; | |
447 | } | |
448 | } | |
449 | ||
450 | rrin = rrrr; // AD | |
451 | ||
452 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); | |
453 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); | |
454 | ||
7a76a12e | 455 | if(rrin>1.e4){ |
456 | rfraclow = TMath::Log2(rrhigh/rrin)/TMath::Log2(rrhigh/rrlow); | |
457 | rfrachigh = TMath::Log2(rrin/rrlow)/TMath::Log2(rrhigh/rrlow); | |
458 | } | |
459 | if((ipart==1) && (rrin>=frrr[0])) | |
460 | { | |
461 | nrlow=1; | |
462 | nrhigh=1; | |
463 | rfraclow=1.; | |
464 | rfrachigh=0.; | |
465 | } | |
466 | if((ipart==2) && (rrin>=frrrg[0])) | |
467 | { | |
468 | nrlow=1; | |
469 | nrhigh=1; | |
470 | rfraclow=1.; | |
471 | rfrachigh=0.; | |
472 | } | |
473 | ||
b6d061b7 | 474 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
475 | ||
476 | Double_t clow=0,chigh=0; | |
477 | if(ipart==1) { | |
478 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; | |
479 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; | |
480 | } else { | |
481 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; | |
482 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; | |
483 | } | |
484 | ||
485 | continuous = rfraclow*clow + rfrachigh*chigh; | |
486 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", | |
7258586f | 487 | //rfraclow,clow,rfrachigh,chigh,continuous); |
b6d061b7 | 488 | |
489 | if(ipart==1) { | |
490 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; | |
491 | } else { | |
492 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; | |
493 | } | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
498 | Int_t AliQuenchingWeights::InitSingleHard(const Char_t *contall,const Char_t *discall) | |
499 | { | |
500 | // read in tables for Single Hard Approx. | |
501 | // path to continuum and to discrete part | |
502 | ||
503 | fTablesLoaded = kFALSE; | |
504 | fMultSoft=kFALSE; | |
505 | ||
506 | Char_t fname[1024]; | |
507 | sprintf(fname,"%s",gSystem->ExpandPathName(contall)); | |
bb545331 | 508 | //PH ifstream fincont(fname); |
509 | fstream fincont(fname,ios::in); | |
510 | #if defined(__HP_aCC) || defined(__DECCXX) | |
511 | if(!fincont.rdbuf()->is_open()) return -1; | |
512 | #else | |
b6d061b7 | 513 | if(!fincont.is_open()) return -1; |
bb545331 | 514 | #endif |
b6d061b7 | 515 | |
516 | Int_t nn=0; //quarks | |
517 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> | |
518 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> | |
519 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>> | |
520 | fcaq[13][nn]>> | |
521 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>> | |
522 | fcaq[18][nn]>> | |
523 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>> | |
524 | fcaq[23][nn]>> | |
525 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>> | |
526 | fcaq[28][nn]>> | |
527 | fcaq[29][nn]) | |
528 | { | |
529 | nn++; | |
530 | if(nn==261) break; | |
531 | } | |
532 | ||
533 | nn=0; //gluons | |
534 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> | |
535 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> | |
536 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>> | |
537 | fcag[13][nn]>> | |
538 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>> | |
539 | fcag[18][nn]>> | |
540 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>> | |
541 | fcag[23][nn]>> | |
542 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>> | |
543 | fcag[28][nn]>> | |
544 | fcag[29][nn]) { | |
545 | nn++; | |
546 | if(nn==261) break; | |
547 | } | |
548 | fincont.close(); | |
549 | ||
550 | sprintf(fname,"%s",gSystem->ExpandPathName(discall)); | |
bb545331 | 551 | //PH ifstream findisc(fname); |
552 | fstream findisc(fname,ios::in); | |
553 | #if defined(__HP_aCC) || defined(__DECCXX) | |
554 | if(!findisc.rdbuf()->is_open()) return -1; | |
555 | #else | |
b6d061b7 | 556 | if(!findisc.is_open()) return -1; |
bb545331 | 557 | #endif |
b6d061b7 | 558 | |
559 | nn=0; //quarks | |
560 | while(findisc>>frrr[nn]>>fdaq[nn]) { | |
561 | nn++; | |
562 | if(nn==30) break; | |
563 | } | |
564 | nn=0; //gluons | |
565 | while(findisc>>frrrg[nn]>>fdag[nn]) { | |
566 | nn++; | |
567 | if(nn==30) break; | |
568 | } | |
569 | findisc.close(); | |
570 | ||
571 | fTablesLoaded = kTRUE; | |
572 | return 0; | |
573 | } | |
574 | ||
575 | /* | |
576 | C*************************************************************************** | |
577 | C Quenching Weights for Single Hard Scattering | |
578 | C February 20, 2003 | |
579 | C | |
580 | C Refs: | |
581 | C | |
582 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. | |
583 | C | |
584 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. | |
585 | C | |
586 | C | |
587 | C This package contains quenching weights for gluon radiation in the | |
588 | C single hard scattering approximation. | |
589 | C | |
590 | C swqlin returns the quenching weight for a quark (ipart=1) or | |
591 | C a gluon (ipart=2) traversing a medium with Debye screening mass mu and | |
592 | C length L. The input values are rrrr=0.5*mu^2*L^2 and xxxx=w/wc, where | |
593 | C wc=0.5*mu^2*L and w is the energy radiated. The output values are | |
594 | C the continuous and discrete (prefactor of the delta function) parts | |
595 | C of the quenching weights. | |
596 | C | |
597 | C In order to use this routine, the files contlin.all and disclin.all | |
598 | C need to be in the working directory. | |
599 | C | |
600 | C An initialization of the tables is needed by doing call initlin before | |
601 | C using swqlin. | |
602 | C | |
603 | C Please, send us any comment: | |
604 | C | |
605 | C urs.wiedemann@cern.ch | |
606 | C carlos.salgado@cern.ch | |
607 | C | |
608 | C | |
609 | C------------------------------------------------------------------- | |
610 | ||
611 | ||
612 | SUBROUTINE swqlin(ipart,rrrr,xxxx,continuous,discrete) | |
613 | * | |
614 | REAL*8 xx(400), dalq(30), calq(30,261), rrr(30) | |
615 | COMMON /datalinqua/ xx, dalq, calq, rrr | |
616 | * | |
617 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) | |
618 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg | |
619 | ||
620 | REAL*8 rrrr,xxxx, continuous, discrete | |
621 | REAL*8 rrin, xxin | |
622 | INTEGER nrlow, nrhigh, nxlow, nxhigh | |
623 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh | |
624 | REAL*8 xfraclow, xfrachigh | |
625 | REAL*8 clow, chigh | |
626 | * | |
627 | rrin = rrrr | |
628 | xxin = xxxx | |
629 | * | |
630 | nxlow = int(xxin/0.038) + 1 | |
631 | nxhigh = nxlow + 1 | |
632 | xfraclow = (xx(nxhigh)-xxin)/0.038 | |
633 | xfrachigh = (xxin - xx(nxlow))/0.038 | |
634 | * | |
635 | do 666, nr=1,30 | |
636 | if (rrin.lt.rrr(nr)) then | |
637 | rrhigh = rrr(nr) | |
638 | else | |
639 | rrhigh = rrr(nr-1) | |
640 | rrlow = rrr(nr) | |
641 | nrlow = nr | |
642 | nrhigh = nr-1 | |
643 | goto 665 | |
644 | endif | |
645 | 666 enddo | |
646 | 665 continue | |
647 | * | |
648 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) | |
649 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) | |
650 | * | |
651 | if(ipart.eq.1) then | |
652 | clow = xfraclow*calq(nrlow,nxlow)+xfrachigh*calq(nrlow,nxhigh) | |
653 | chigh = xfraclow*calq(nrhigh,nxlow)+xfrachigh*calq(nrhigh,nxhigh) | |
654 | else | |
655 | clow = xfraclow*calg(nrlow,nxlow)+xfrachigh*calg(nrlow,nxhigh) | |
656 | chigh = xfraclow*calg(nrhigh,nxlow)+xfrachigh*calg(nrhigh,nxhigh) | |
657 | endif | |
658 | ||
659 | continuous = rfraclow*clow + rfrachigh*chigh | |
660 | ||
661 | if(ipart.eq.1) then | |
662 | discrete = rfraclow*dalq(nrlow) + rfrachigh*dalq(nrhigh) | |
663 | else | |
664 | discrete = rfraclow*dalg(nrlow) + rfrachigh*dalg(nrhigh) | |
665 | endif | |
666 | * | |
667 | END | |
668 | ||
669 | subroutine initlin | |
670 | REAL*8 xxlq(400), dalq(30), calq(30,261), rrr(30) | |
671 | COMMON /datalinqua/ xxlq, dalq, calq, rrr | |
672 | * | |
673 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) | |
674 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg | |
675 | * | |
676 | OPEN(UNIT=20,FILE='contlin.all',STATUS='OLD',ERR=90) | |
677 | do 110 nn=1,261 | |
678 | read (20,*) xxlq(nn), calq(1,nn), calq(2,nn), calq(3,nn), | |
679 | + calq(4,nn), calq(5,nn), calq(6,nn), calq(7,nn), calq(8,nn), | |
680 | + calq(9,nn), calq(10,nn), calq(11,nn), calq(12,nn), | |
681 | + calq(13,nn), | |
682 | + calq(14,nn), calq(15,nn), calq(16,nn), calq(17,nn), | |
683 | + calq(18,nn), | |
684 | + calq(19,nn), calq(20,nn), calq(21,nn), calq(22,nn), | |
685 | + calq(23,nn), | |
686 | + calq(24,nn), calq(25,nn), calq(26,nn), calq(27,nn), | |
687 | + calq(28,nn), | |
688 | + calq(29,nn), calq(30,nn) | |
689 | 110 continue | |
690 | do 111 nn=1,261 | |
691 | read (20,*) xxlg(nn), calg(1,nn), calg(2,nn), calg(3,nn), | |
692 | + calg(4,nn), calg(5,nn), calg(6,nn), calg(7,nn), calg(8,nn), | |
693 | + calg(9,nn), calg(10,nn), calg(11,nn), calg(12,nn), | |
694 | + calg(13,nn), | |
695 | + calg(14,nn), calg(15,nn), calg(16,nn), calg(17,nn), | |
696 | + calg(18,nn), | |
697 | + calg(19,nn), calg(20,nn), calg(21,nn), calg(22,nn), | |
698 | + calg(23,nn), | |
699 | + calg(24,nn), calg(25,nn), calg(26,nn), calg(27,nn), | |
700 | + calg(28,nn), | |
701 | + calg(29,nn), calg(30,nn) | |
702 | 111 continue | |
703 | close(20) | |
704 | * | |
705 | OPEN(UNIT=21,FILE='disclin.all',STATUS='OLD',ERR=91) | |
706 | do 112 nn=1,30 | |
707 | read (21,*) rrr(nn), dalq(nn) | |
708 | 112 continue | |
709 | do 113 nn=1,30 | |
710 | read (21,*) rrrlg(nn), dalg(nn) | |
711 | 113 continue | |
712 | close(21) | |
713 | * | |
714 | goto 888 | |
715 | 90 PRINT*, 'input - output error' | |
716 | 91 PRINT*, 'input - output error #2' | |
717 | 888 continue | |
718 | ||
719 | end | |
720 | ||
721 | ======================================================================= | |
722 | ||
723 | Ported to class by C. Loizides - 17/02/2004 | |
724 | ||
725 | */ | |
726 | ||
727 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, Double_t rrrr,Double_t xxxx, | |
728 | Double_t &continuous,Double_t &discrete) const | |
729 | { | |
730 | // calculate Single Hard approx. | |
731 | // weights for given parton type, | |
732 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L | |
733 | ||
734 | // read-in data before first call | |
735 | if(!fTablesLoaded){ | |
7258586f | 736 | Error("CalcSingleHard","Tables are not loaded."); |
b6d061b7 | 737 | return -1; |
738 | } | |
20169737 | 739 | if(fMultSoft){ |
7258586f | 740 | Error("CalcSingleHard","Tables are not loaded for Single Hard Scattering."); |
b6d061b7 | 741 | return -1; |
742 | } | |
743 | ||
744 | Double_t rrin = rrrr; | |
745 | Double_t xxin = xxxx; | |
746 | ||
747 | Int_t nxlow = (Int_t)(xxin/0.038) + 1; | |
748 | Int_t nxhigh = nxlow + 1; | |
749 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.038; | |
750 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.038; | |
751 | ||
752 | //why this? | |
753 | if(rrin<=frrr[29]) rrin = 1.05*frrr[29]; // AD | |
754 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD | |
755 | ||
756 | Int_t nrlow=0,nrhigh=0; | |
757 | Double_t rrhigh=0,rrlow=0; | |
758 | for(Int_t nr=1; nr<=30; nr++) { | |
759 | if(rrin<frrr[nr-1]) { | |
760 | rrhigh = frrr[nr-1]; | |
761 | } else { | |
762 | rrhigh = frrr[nr-1-1]; | |
763 | rrlow = frrr[nr-1]; | |
764 | nrlow = nr; | |
765 | nrhigh = nr-1; | |
766 | break; | |
767 | } | |
768 | } | |
769 | ||
770 | rrin = rrrr; // AD | |
771 | ||
772 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); | |
773 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); | |
774 | ||
775 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD | |
776 | ||
777 | Double_t clow=0,chigh=0; | |
778 | if(ipart==1) { | |
779 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; | |
780 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; | |
781 | } else { | |
782 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; | |
783 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; | |
784 | } | |
785 | ||
786 | continuous = rfraclow*clow + rfrachigh*chigh; | |
787 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", | |
788 | // rfraclow,clow,rfrachigh,chigh,continuous); | |
789 | ||
790 | if(ipart==1) { | |
791 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; | |
792 | } else { | |
793 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; | |
794 | } | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
799 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, | |
800 | Double_t w,Double_t qtransp,Double_t length, | |
801 | Double_t &continuous,Double_t &discrete) const | |
802 | { | |
7a76a12e | 803 | // Calculate Multiple Scattering approx. |
804 | // weights for given parton type, | |
805 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 | |
806 | ||
b6d061b7 | 807 | Double_t wc=CalcWC(qtransp,length); |
808 | Double_t rrrr=CalcR(wc,length); | |
809 | Double_t xxxx=w/wc; | |
810 | return CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
811 | } | |
812 | ||
813 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, | |
814 | Double_t w,Double_t mu,Double_t length, | |
815 | Double_t &continuous,Double_t &discrete) const | |
816 | { | |
7a76a12e | 817 | // calculate Single Hard approx. |
818 | // weights for given parton type, | |
819 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L | |
820 | ||
b6d061b7 | 821 | Double_t wcbar=CalcWCbar(mu,length); |
822 | Double_t rrrr=CalcR(wcbar,length); | |
823 | Double_t xxxx=w/wcbar; | |
824 | return CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
825 | } | |
826 | ||
827 | Double_t AliQuenchingWeights::CalcR(Double_t wc, Double_t l) const | |
828 | { | |
a42548b0 | 829 | //calculate r value and |
7a76a12e | 830 | //check if it is less then maximum |
831 | ||
a42548b0 | 832 | Double_t r = wc*l*fgkConvFmToInvGeV; |
833 | if(r >= fgkRMax) { | |
834 | Warning("CalcR","Value of r = %.2f; should be less than %.2f", r, fgkRMax); | |
cc885e36 | 835 | return fgkRMax-1; |
b6d061b7 | 836 | } |
a42548b0 | 837 | return r; |
b6d061b7 | 838 | } |
839 | ||
7258586f | 840 | Double_t AliQuenchingWeights::CalcRk(Double_t k, Double_t I0, Double_t I1) const |
841 | { | |
842 | //calculate R value and | |
843 | //check if it is less then maximum | |
844 | ||
a42548b0 | 845 | Double_t r = fgkRMax-1; |
7258586f | 846 | if(I0>0) |
a42548b0 | 847 | r = 2*I1*I1/I0*k; |
848 | if(r>=fgkRMax) { | |
849 | Warning("CalcRk","Value of r = %.2f; should be less than %.2f",r,fgkRMax); | |
cc885e36 | 850 | return fgkRMax-1; |
7258586f | 851 | } |
a42548b0 | 852 | return r; |
7258586f | 853 | } |
854 | ||
b6d061b7 | 855 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, Double_t length, Double_t e) const |
856 | { | |
857 | // return DeltaE for MS or SH scattering | |
858 | // for given parton type, length and energy | |
859 | // Dependant on ECM (energy constraint method) | |
860 | // e is used to determine where to set bins to zero. | |
861 | ||
862 | if(!fHistos){ | |
863 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); | |
864 | return -1000.; | |
865 | } | |
866 | if((ipart<1) || (ipart>2)) { | |
867 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
7258586f | 868 | return -1000.; |
b6d061b7 | 869 | } |
870 | ||
7258586f | 871 | Int_t l=GetIndex(length); |
b6d061b7 | 872 | if(l<=0) return 0.; |
b6d061b7 | 873 | |
874 | if(fECMethod==kReweight){ | |
facee35a | 875 | Double_t ret = 2.*e; |
876 | Int_t ws=0; | |
877 | while(ret>e){ | |
878 | ret=fHistos[ipart-1][l-1]->GetRandom(); | |
6bd26c4a | 879 | if(++ws==1e6){ |
880 | Warning("GetELossRandom", | |
881 | "Aborted reweighting; maximum loss assigned after 1e6 trials."); | |
facee35a | 882 | return e; |
883 | } | |
b6d061b7 | 884 | } |
b6d061b7 | 885 | return ret; |
886 | } | |
facee35a | 887 | //kDefault |
888 | Double_t ret=fHistos[ipart-1][l-1]->GetRandom(); | |
889 | if(ret>e) return e; | |
890 | return ret; | |
b6d061b7 | 891 | } |
892 | ||
893 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, Double_t length, Double_t e) const | |
894 | { | |
895 | //return quenched parton energy | |
896 | //for given parton type, length and energy | |
897 | ||
898 | Double_t loss=GetELossRandom(ipart,length,e); | |
899 | return e-loss; | |
900 | } | |
901 | ||
e99e3ed5 | 902 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, TH1F *hell, Double_t e) const |
b6d061b7 | 903 | { |
7a76a12e | 904 | // return DeltaE for MS or SH scattering |
905 | // for given parton type, length distribution and energy | |
906 | // Dependant on ECM (energy constraint method) | |
907 | // e is used to determine where to set bins to zero. | |
908 | ||
b6d061b7 | 909 | if(!hell){ |
910 | Warning("GetELossRandom","Pointer to length distribution is NULL."); | |
911 | return 0.; | |
912 | } | |
913 | Double_t ell=hell->GetRandom(); | |
914 | return GetELossRandom(ipart,ell,e); | |
915 | } | |
916 | ||
917 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, TH1F *hell, Double_t e) const | |
918 | { | |
919 | //return quenched parton energy | |
920 | //for given parton type, length distribution and energy | |
921 | ||
922 | Double_t loss=GetELossRandom(ipart,hell,e); | |
923 | return e-loss; | |
924 | } | |
925 | ||
7258586f | 926 | Double_t AliQuenchingWeights::GetELossRandomK(Int_t ipart, Double_t I0, Double_t I1, Double_t e) |
927 | { | |
928 | // return DeltaE for new dynamic version | |
929 | // for given parton type, I0 and I1 value and energy | |
930 | // Dependant on ECM (energy constraint method) | |
931 | // e is used to determine where to set bins to zero. | |
932 | ||
933 | // read-in data before first call | |
934 | if(!fTablesLoaded){ | |
935 | Fatal("GetELossRandomK","Tables are not loaded."); | |
936 | return -1000.; | |
937 | } | |
938 | if((ipart<1) || (ipart>2)) { | |
939 | Fatal("GetELossRandomK","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
940 | return -1000.; | |
941 | } | |
942 | ||
b90de01a | 943 | Double_t r=CalcRk(I0,I1); |
944 | if(r<0.){ | |
7258586f | 945 | Fatal("GetELossRandomK","R should not be negative"); |
946 | return -1000.; | |
947 | } | |
948 | Double_t wc=CalcWCk(I1); | |
cc885e36 | 949 | if(wc<=0.){ |
7258586f | 950 | Fatal("GetELossRandomK","wc should be greater than zero"); |
951 | return -1000.; | |
952 | } | |
b90de01a | 953 | if(SampleEnergyLoss(ipart,r)!=0){ |
7258586f | 954 | Fatal("GetELossRandomK","Could not sample energy loss"); |
955 | return -1000.; | |
956 | } | |
957 | ||
958 | if(fECMethod==kReweight){ | |
facee35a | 959 | Double_t ret = 2.*e; |
960 | Int_t ws=0; | |
961 | while(ret>e){ | |
962 | ret=fHisto->GetRandom(); | |
6bd26c4a | 963 | if(++ws==1e6){ |
facee35a | 964 | Warning("GetELossRandomK", |
6bd26c4a | 965 | "Aborted reweighting; maximum loss assigned after 1e6 trials."); |
facee35a | 966 | return e; |
967 | } | |
7258586f | 968 | } |
7258586f | 969 | return ret; |
970 | } | |
facee35a | 971 | |
972 | //kDefault | |
973 | Double_t ret=fHisto->GetRandom()*wc; | |
974 | if(ret>e) return e; | |
975 | return ret; | |
7258586f | 976 | } |
977 | ||
978 | Double_t AliQuenchingWeights::CalcQuenchedEnergyK(Int_t ipart, Double_t I0, Double_t I1, Double_t e) | |
979 | { | |
980 | //return quenched parton energy | |
981 | //for given parton type, I0 and I1 value and energy | |
982 | ||
983 | Double_t loss=GetELossRandomK(ipart,I0,I1,e); | |
984 | return e-loss; | |
985 | } | |
986 | ||
2552c51a | 987 | Double_t AliQuenchingWeights::GetELossRandomKFast(Int_t ipart, Double_t I0, Double_t I1, Double_t e) |
988 | { | |
989 | // return DeltaE for new dynamic version | |
990 | // for given parton type, I0 and I1 value and energy | |
991 | // Dependant on ECM (energy constraint method) | |
992 | // e is used to determine where to set bins to zero. | |
993 | // method is optimized and should only be used if | |
994 | // all parameters are well within the bounds. | |
995 | // read-in data tables before first call | |
996 | ||
b90de01a | 997 | Double_t r=CalcRk(I0,I1); |
998 | if(r<=0.){ | |
2552c51a | 999 | return 0.; |
1000 | } | |
1001 | ||
1002 | Double_t wc=CalcWCk(I1); | |
cc885e36 | 1003 | if(wc<=0.){ |
2552c51a | 1004 | return 0.; |
1005 | } | |
1006 | ||
b90de01a | 1007 | return GetELossRandomKFastR(ipart,r,wc,e); |
cc885e36 | 1008 | } |
1009 | ||
b90de01a | 1010 | Double_t AliQuenchingWeights::GetELossRandomKFastR(Int_t ipart, Double_t r, Double_t wc, Double_t e) |
cc885e36 | 1011 | { |
1012 | // return DeltaE for new dynamic version | |
1013 | // for given parton type, R and wc value and energy | |
1014 | // Dependant on ECM (energy constraint method) | |
1015 | // e is used to determine where to set bins to zero. | |
1016 | // method is optimized and should only be used if | |
1017 | // all parameters are well within the bounds. | |
1018 | // read-in data tables before first call | |
1019 | ||
b90de01a | 1020 | if(r>=fgkRMax) { |
1021 | r=fgkRMax-1; | |
cc885e36 | 1022 | } |
b677de56 | 1023 | |
2552c51a | 1024 | Double_t discrete=0.; |
cc885e36 | 1025 | Double_t continuous=0.; |
2552c51a | 1026 | Int_t bin=1; |
1027 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1028 | if(fMultSoft) | |
b90de01a | 1029 | CalcMult(ipart,r,xxxx,continuous,discrete); |
2552c51a | 1030 | else |
b90de01a | 1031 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
2552c51a | 1032 | |
b677de56 | 1033 | if(discrete>=1.0) { |
cc885e36 | 1034 | return 0.; //no energy loss |
2552c51a | 1035 | } |
1036 | ||
2552c51a | 1037 | fHisto->SetBinContent(bin,continuous); |
b677de56 | 1038 | Int_t kbinmax=fHisto->FindBin(e/wc); |
1039 | if(kbinmax>=fgkBins) kbinmax=fgkBins-1; | |
cc885e36 | 1040 | if(kbinmax==1) return e; //maximum energy loss |
1041 | ||
8ab8044e | 1042 | if(fMultSoft) { |
599b2e92 | 1043 | for(bin=2; bin<=kbinmax; bin++) { |
8ab8044e | 1044 | xxxx = fHisto->GetBinCenter(bin); |
b90de01a | 1045 | CalcMult(ipart,r,xxxx,continuous,discrete); |
8ab8044e | 1046 | fHisto->SetBinContent(bin,continuous); |
1047 | } | |
1048 | } else { | |
599b2e92 | 1049 | for(bin=2; bin<=kbinmax; bin++) { |
8ab8044e | 1050 | xxxx = fHisto->GetBinCenter(bin); |
b90de01a | 1051 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
8ab8044e | 1052 | fHisto->SetBinContent(bin,continuous); |
1053 | } | |
1054 | } | |
2552c51a | 1055 | |
b677de56 | 1056 | if(fECMethod==kReweight){ |
8ab8044e | 1057 | fHisto->SetBinContent(kbinmax+1,0); |
b677de56 | 1058 | fHisto->Fill(0.,discrete*fgkBins/fgkMaxBin); |
1059 | } else if (fECMethod==kReweightCont) { | |
1060 | fHisto->SetBinContent(kbinmax+1,0); | |
1061 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1062 | fHisto->Scale(1./kdelta*(1-discrete)); | |
1063 | fHisto->Fill(0.,discrete); | |
1064 | } else { | |
1065 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1066 | Double_t val=discrete*fgkBins/fgkMaxBin; | |
1067 | fHisto->Fill(0.,val); | |
8ab8044e | 1068 | fHisto->SetBinContent(kbinmax+1,(1-discrete)*fgkBins/fgkMaxBin-kdelta); |
b677de56 | 1069 | } |
599b2e92 | 1070 | for(bin=kbinmax+2; bin<=fgkBins; bin++) { |
8ab8044e | 1071 | fHisto->SetBinContent(bin,0); |
1072 | } | |
b677de56 | 1073 | //cout << kbinmax << " " << discrete << " " << fHisto->Integral() << endl; |
2552c51a | 1074 | Double_t ret=fHisto->GetRandom()*wc; |
1075 | if(ret>e) return e; | |
1076 | return ret; | |
1077 | } | |
1078 | ||
1079 | Double_t AliQuenchingWeights::CalcQuenchedEnergyKFast(Int_t ipart, Double_t I0, Double_t I1, Double_t e) | |
1080 | { | |
1081 | //return quenched parton energy (fast method) | |
1082 | //for given parton type, I0 and I1 value and energy | |
1083 | ||
1084 | Double_t loss=GetELossRandomKFast(ipart,I0,I1,e); | |
1085 | return e-loss; | |
1086 | } | |
1087 | ||
b677de56 | 1088 | Double_t AliQuenchingWeights::GetDiscreteWeight(Int_t ipart, Double_t I0, Double_t I1) |
1089 | { | |
1090 | // return discrete weight | |
1091 | ||
b90de01a | 1092 | Double_t r=CalcRk(I0,I1); |
1093 | if(r<=0.){ | |
b677de56 | 1094 | return 1.; |
1095 | } | |
b90de01a | 1096 | return GetDiscreteWeightR(ipart,r); |
b677de56 | 1097 | } |
1098 | ||
b90de01a | 1099 | Double_t AliQuenchingWeights::GetDiscreteWeightR(Int_t ipart, Double_t r) |
b677de56 | 1100 | { |
1101 | // return discrete weight | |
1102 | ||
b90de01a | 1103 | if(r>=fgkRMax) { |
1104 | r=fgkRMax-1; | |
b677de56 | 1105 | } |
1106 | ||
1107 | Double_t discrete=0.; | |
1108 | Double_t continuous=0.; | |
1109 | Int_t bin=1; | |
1110 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1111 | if(fMultSoft) | |
b90de01a | 1112 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1113 | else |
b90de01a | 1114 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1115 | return discrete; |
1116 | } | |
1117 | ||
b90de01a | 1118 | void AliQuenchingWeights::GetZeroLossProb(Double_t &p,Double_t &prw,Double_t &prwcont, |
b677de56 | 1119 | Int_t ipart,Double_t I0,Double_t I1,Double_t e) |
1120 | { | |
b90de01a | 1121 | //calculate the probabilty that there is no energy |
1122 | //loss for different ways of energy constraint | |
1123 | p=1.;prw=1.;prwcont=1.; | |
1124 | Double_t r=CalcRk(I0,I1); | |
1125 | if(r<=0.){ | |
b677de56 | 1126 | return; |
1127 | } | |
1128 | Double_t wc=CalcWCk(I1); | |
1129 | if(wc<=0.){ | |
1130 | return; | |
1131 | } | |
b90de01a | 1132 | GetZeroLossProbR(p,prw,prwcont,ipart,r,wc,e); |
b677de56 | 1133 | } |
1134 | ||
b90de01a | 1135 | void AliQuenchingWeights::GetZeroLossProbR(Double_t &p,Double_t &prw,Double_t &prwcont, |
1136 | Int_t ipart, Double_t r,Double_t wc,Double_t e) | |
b677de56 | 1137 | { |
b90de01a | 1138 | //calculate the probabilty that there is no energy |
1139 | //loss for different ways of energy constraint | |
1140 | if(r>=fgkRMax) { | |
1141 | r=fgkRMax-1; | |
b677de56 | 1142 | } |
1143 | ||
1144 | Double_t discrete=0.; | |
1145 | Double_t continuous=0.; | |
1146 | ||
1147 | Int_t kbinmax=fHisto->FindBin(e/wc); | |
1148 | if(kbinmax>=fgkBins) kbinmax=fgkBins-1; | |
1149 | if(fMultSoft) { | |
1150 | for(Int_t bin=1; bin<=kbinmax; bin++) { | |
1151 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
b90de01a | 1152 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1153 | fHisto->SetBinContent(bin,continuous); |
1154 | } | |
1155 | } else { | |
1156 | for(Int_t bin=1; bin<=kbinmax; bin++) { | |
1157 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
b90de01a | 1158 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1159 | fHisto->SetBinContent(bin,continuous); |
1160 | } | |
1161 | } | |
1162 | ||
1163 | //non-reweighted P(Delta E = 0) | |
1164 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1165 | Double_t val=discrete*fgkBins/fgkMaxBin; | |
1166 | fHisto->Fill(0.,val); | |
1167 | fHisto->SetBinContent(kbinmax+1,(1-discrete)*fgkBins/fgkMaxBin-kdelta); | |
1168 | Double_t hint=fHisto->Integral(1,kbinmax+1); | |
1169 | p=fHisto->GetBinContent(1)/hint; | |
1170 | ||
1171 | // reweighted | |
1172 | hint=fHisto->Integral(1,kbinmax); | |
1173 | prw=fHisto->GetBinContent(1)/hint; | |
1174 | ||
1175 | Double_t xxxx = fHisto->GetBinCenter(1); | |
b90de01a | 1176 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1177 | fHisto->SetBinContent(1,continuous); |
1178 | hint=fHisto->Integral(1,kbinmax); | |
1179 | fHisto->Scale(1./hint*(1-discrete)); | |
1180 | fHisto->Fill(0.,discrete); | |
b90de01a | 1181 | prwcont=fHisto->GetBinContent(1); |
b677de56 | 1182 | } |
1183 | ||
b6d061b7 | 1184 | Int_t AliQuenchingWeights::SampleEnergyLoss() |
1185 | { | |
1186 | // Has to be called to fill the histograms | |
1187 | // | |
1188 | // For stored values fQTransport loop over | |
1189 | // particle type and length = 1 to fMaxLength (fm) | |
1190 | // to fill energy loss histos | |
1191 | // | |
1192 | // Take histogram of continuous weights | |
1193 | // Take discrete_weight | |
1194 | // If discrete_weight > 1, put all channels to 0, except channel 1 | |
1195 | // Fill channel 1 with discrete_weight/(1-discrete_weight)*integral | |
1196 | ||
1197 | // read-in data before first call | |
1198 | if(!fTablesLoaded){ | |
7258586f | 1199 | Error("SampleEnergyLoss","Tables are not loaded."); |
b6d061b7 | 1200 | return -1; |
1201 | } | |
1202 | ||
1203 | if(fMultSoft) { | |
1204 | Int_t lmax=CalcLengthMax(fQTransport); | |
1205 | if(fLengthMax>lmax){ | |
7a76a12e | 1206 | Info("SampleEnergyLoss","Maximum length changed from %d to %d;\nin order to have R < %.f",fLengthMax,lmax,fgkRMax); |
b6d061b7 | 1207 | fLengthMax=lmax; |
1208 | } | |
1209 | } else { | |
1210 | Warning("SampleEnergyLoss","Maximum length not checked,\nbecause SingeHard is not yet tested."); | |
1211 | } | |
1212 | ||
1213 | Reset(); | |
1214 | fHistos=new TH1F**[2]; | |
9d851d20 | 1215 | fHistos[0]=new TH1F*[4*fLengthMax]; |
1216 | fHistos[1]=new TH1F*[4*fLengthMax]; | |
b6d061b7 | 1217 | fLengthMaxOld=fLengthMax; //remember old value in case |
1218 | //user wants to reset | |
1219 | ||
1220 | Int_t medvalue=0; | |
1221 | Char_t meddesc[100]; | |
1222 | if(fMultSoft) { | |
1223 | medvalue=(Int_t)(fQTransport*1000.); | |
1224 | sprintf(meddesc,"MS"); | |
1225 | } else { | |
1226 | medvalue=(Int_t)(fMu*1000.); | |
1227 | sprintf(meddesc,"SH"); | |
1228 | } | |
1229 | ||
1230 | for(Int_t ipart=1;ipart<=2;ipart++){ | |
9d851d20 | 1231 | for(Int_t l=1;l<=4*fLengthMax;l++){ |
b6d061b7 | 1232 | Char_t hname[100]; |
1233 | sprintf(hname,"hDisc-ContQW_%s_%d_%d_%d_%d",meddesc,fInstanceNumber,ipart,medvalue,l); | |
9d851d20 | 1234 | Double_t len=l/4.; |
7258586f | 1235 | Double_t wc = CalcWC(len); |
2552c51a | 1236 | fHistos[ipart-1][l-1] = new TH1F(hname,hname,fgkBins,0.,fgkMaxBin*wc); |
b6d061b7 | 1237 | fHistos[ipart-1][l-1]->SetXTitle("#Delta E [GeV]"); |
1238 | fHistos[ipart-1][l-1]->SetYTitle("p(#Delta E)"); | |
1239 | fHistos[ipart-1][l-1]->SetLineColor(4); | |
1240 | ||
7258586f | 1241 | Double_t rrrr = CalcR(wc,len); |
b6d061b7 | 1242 | Double_t discrete=0.; |
1243 | // loop on histogram channels | |
2552c51a | 1244 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1245 | Double_t xxxx = fHistos[ipart-1][l-1]->GetBinCenter(bin)/wc; |
1246 | Double_t continuous; | |
7258586f | 1247 | if(fMultSoft) |
1248 | CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1249 | else | |
1250 | CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
b6d061b7 | 1251 | fHistos[ipart-1][l-1]->SetBinContent(bin,continuous); |
1252 | } | |
1253 | // add discrete part to distribution | |
1254 | if(discrete>=1.) | |
2552c51a | 1255 | for(Int_t bin=2;bin<=fgkBins;bin++) |
b6d061b7 | 1256 | fHistos[ipart-1][l-1]->SetBinContent(bin,0.); |
1257 | else { | |
2552c51a | 1258 | Double_t val=discrete/(1.-discrete)*fHistos[ipart-1][l-1]->Integral(1,fgkBins); |
b6d061b7 | 1259 | fHistos[ipart-1][l-1]->Fill(0.,val); |
1260 | } | |
2552c51a | 1261 | Double_t hint=fHistos[ipart-1][l-1]->Integral(1,fgkBins); |
b6d061b7 | 1262 | fHistos[ipart-1][l-1]->Scale(1./hint); |
1263 | } | |
1264 | } | |
1265 | return 0; | |
1266 | } | |
1267 | ||
b90de01a | 1268 | Int_t AliQuenchingWeights::SampleEnergyLoss(Int_t ipart, Double_t r) |
7258586f | 1269 | { |
1270 | // Sample energy loss directly for one particle type | |
1271 | // choses R (safe it and keep it until next call of function) | |
1272 | ||
1273 | // read-in data before first call | |
1274 | if(!fTablesLoaded){ | |
1275 | Error("SampleEnergyLoss","Tables are not loaded."); | |
1276 | return -1; | |
1277 | } | |
1278 | ||
1279 | Double_t discrete=0.; | |
1280 | Double_t continuous=0;; | |
1281 | Int_t bin=1; | |
1282 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1283 | if(fMultSoft) | |
b90de01a | 1284 | CalcMult(ipart,r,xxxx,continuous,discrete); |
7258586f | 1285 | else |
b90de01a | 1286 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
7258586f | 1287 | |
1288 | if(discrete>=1.) { | |
1289 | fHisto->SetBinContent(1,1.); | |
599b2e92 | 1290 | for(bin=2;bin<=fgkBins;bin++) |
7258586f | 1291 | fHisto->SetBinContent(bin,0.); |
1292 | return 0; | |
1293 | } | |
1294 | ||
1295 | fHisto->SetBinContent(bin,continuous); | |
599b2e92 | 1296 | for(bin=2; bin<=fgkBins; bin++) { |
7258586f | 1297 | xxxx = fHisto->GetBinCenter(bin); |
1298 | if(fMultSoft) | |
b90de01a | 1299 | CalcMult(ipart,r,xxxx,continuous,discrete); |
7258586f | 1300 | else |
b90de01a | 1301 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
7258586f | 1302 | fHisto->SetBinContent(bin,continuous); |
1303 | } | |
8ab8044e | 1304 | |
2552c51a | 1305 | Double_t val=discrete/(1.-discrete)*fHisto->Integral(1,fgkBins); |
7258586f | 1306 | fHisto->Fill(0.,val); |
2552c51a | 1307 | Double_t hint=fHisto->Integral(1,fgkBins); |
7258586f | 1308 | if(hint!=0) |
1309 | fHisto->Scale(1./hint); | |
1310 | else { | |
2552c51a | 1311 | //cout << discrete << " " << hint << " " << continuous << endl; |
7258586f | 1312 | return -1; |
1313 | } | |
1314 | return 0; | |
1315 | } | |
1316 | ||
1317 | const TH1F* AliQuenchingWeights::GetHisto(Int_t ipart,Double_t length) const | |
b6d061b7 | 1318 | { |
7a76a12e | 1319 | //return quenching histograms |
1320 | //for ipart and length | |
1321 | ||
b6d061b7 | 1322 | if(!fHistos){ |
1323 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); | |
1324 | return 0; | |
1325 | } | |
1326 | if((ipart<1) || (ipart>2)) { | |
1327 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
1328 | return 0; | |
1329 | } | |
1330 | ||
7258586f | 1331 | Int_t l=GetIndex(length); |
b6d061b7 | 1332 | if(l<=0) return 0; |
b6d061b7 | 1333 | return fHistos[ipart-1][l-1]; |
1334 | } | |
1335 | ||
1336 | TH1F* AliQuenchingWeights::ComputeQWHisto(Int_t ipart,Double_t medval,Double_t length) const | |
1337 | { | |
1338 | // ipart = 1 for quark, 2 for gluon | |
1339 | // medval a) qtransp = transport coefficient (GeV^2/fm) | |
1340 | // b) mu = Debye mass (GeV) | |
1341 | // length = path length in medium (fm) | |
1342 | // Get from SW tables: | |
7258586f | 1343 | // - continuous weight, as a function of dE/wc |
b6d061b7 | 1344 | |
1345 | Double_t wc = 0; | |
1346 | Char_t meddesc[100]; | |
1347 | if(fMultSoft) { | |
1348 | wc=CalcWC(medval,length); | |
1349 | sprintf(meddesc,"MS"); | |
1350 | } else { | |
1351 | wc=CalcWCbar(medval,length); | |
1352 | sprintf(meddesc,"SH"); | |
1353 | } | |
1354 | ||
1355 | Char_t hname[100]; | |
1356 | sprintf(hname,"hContQWHisto_%s_%d_%d_%d",meddesc,ipart, | |
1357 | (Int_t)(medval*1000.),(Int_t)length); | |
1358 | ||
2552c51a | 1359 | TH1F *hist = new TH1F("hist",hname,fgkBins,0.,fgkMaxBin*wc); |
b6d061b7 | 1360 | hist->SetXTitle("#Delta E [GeV]"); |
1361 | hist->SetYTitle("p(#Delta E)"); | |
1362 | hist->SetLineColor(4); | |
1363 | ||
1364 | Double_t rrrr = CalcR(wc,length); | |
7258586f | 1365 | //loop on histogram channels |
2552c51a | 1366 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1367 | Double_t xxxx = hist->GetBinCenter(bin)/wc; |
1368 | Double_t continuous,discrete; | |
1369 | Int_t ret=0; | |
1370 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1371 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1372 | if(ret!=0){ | |
1373 | delete hist; | |
1374 | return 0; | |
1375 | }; | |
1376 | hist->SetBinContent(bin,continuous); | |
1377 | } | |
1378 | return hist; | |
1379 | } | |
1380 | ||
1381 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t medval,Double_t length) const | |
1382 | { | |
1383 | // ipart = 1 for quark, 2 for gluon | |
1384 | // medval a) qtransp = transport coefficient (GeV^2/fm) | |
1385 | // b) mu = Debye mass (GeV) | |
1386 | // length = path length in medium (fm) | |
1387 | // Get from SW tables: | |
7258586f | 1388 | // - continuous weight, as a function of dE/wc |
b6d061b7 | 1389 | |
1390 | Double_t wc = 0; | |
1391 | Char_t meddesc[100]; | |
1392 | if(fMultSoft) { | |
1393 | wc=CalcWC(medval,length); | |
1394 | sprintf(meddesc,"MS"); | |
1395 | } else { | |
1396 | wc=CalcWCbar(medval,length); | |
1397 | sprintf(meddesc,"SH"); | |
1398 | } | |
1399 | ||
1400 | Char_t hname[100]; | |
1401 | sprintf(hname,"hContQWHistox_%s_%d_%d_%d",meddesc,ipart, | |
1402 | (Int_t)(medval*1000.),(Int_t)length); | |
1403 | ||
2552c51a | 1404 | TH1F *histx = new TH1F("histx",hname,fgkBins,0.,fgkMaxBin); |
b6d061b7 | 1405 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
1406 | if(fMultSoft) | |
1407 | histx->SetYTitle("p(#Delta E/#omega_{c})"); | |
1408 | else | |
1409 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); | |
1410 | histx->SetLineColor(4); | |
1411 | ||
1412 | Double_t rrrr = CalcR(wc,length); | |
7258586f | 1413 | //loop on histogram channels |
2552c51a | 1414 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1415 | Double_t xxxx = histx->GetBinCenter(bin); |
1416 | Double_t continuous,discrete; | |
1417 | Int_t ret=0; | |
1418 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1419 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1420 | if(ret!=0){ | |
1421 | delete histx; | |
1422 | return 0; | |
1423 | }; | |
1424 | histx->SetBinContent(bin,continuous); | |
1425 | } | |
1426 | return histx; | |
1427 | } | |
1428 | ||
b90de01a | 1429 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t r) const |
7258586f | 1430 | { |
1431 | // compute P(E) distribution for | |
1432 | // given ipart = 1 for quark, 2 for gluon | |
1433 | // and R | |
1434 | ||
1435 | Char_t meddesc[100]; | |
1436 | if(fMultSoft) { | |
1437 | sprintf(meddesc,"MS"); | |
1438 | } else { | |
1439 | sprintf(meddesc,"SH"); | |
1440 | } | |
1441 | ||
1442 | Char_t hname[100]; | |
b90de01a | 1443 | sprintf(hname,"hQWHistox_%s_%d_%.2f",meddesc,ipart,r); |
2552c51a | 1444 | TH1F *histx = new TH1F("histx",hname,fgkBins,0.,fgkMaxBin); |
7258586f | 1445 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
1446 | if(fMultSoft) | |
1447 | histx->SetYTitle("p(#Delta E/#omega_{c})"); | |
1448 | else | |
1449 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); | |
1450 | histx->SetLineColor(4); | |
1451 | ||
b90de01a | 1452 | Double_t rrrr = r; |
7258586f | 1453 | Double_t continuous=0.,discrete=0.; |
1454 | //loop on histogram channels | |
2552c51a | 1455 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
7258586f | 1456 | Double_t xxxx = histx->GetBinCenter(bin); |
1457 | Int_t ret=0; | |
1458 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1459 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1460 | if(ret!=0){ | |
1461 | delete histx; | |
1462 | return 0; | |
1463 | }; | |
1464 | histx->SetBinContent(bin,continuous); | |
1465 | } | |
1466 | ||
1467 | //add discrete part to distribution | |
1468 | if(discrete>=1.) | |
2552c51a | 1469 | for(Int_t bin=2;bin<=fgkBins;bin++) |
7258586f | 1470 | histx->SetBinContent(bin,0.); |
1471 | else { | |
2552c51a | 1472 | Double_t val=discrete/(1.-discrete)*histx->Integral(1,fgkBins); |
7258586f | 1473 | histx->Fill(0.,val); |
1474 | } | |
2552c51a | 1475 | Double_t hint=histx->Integral(1,fgkBins); |
7258586f | 1476 | if(hint!=0) histx->Scale(1./hint); |
1477 | ||
1478 | return histx; | |
1479 | } | |
1480 | ||
e99e3ed5 | 1481 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,Double_t l,Double_t e) const |
b6d061b7 | 1482 | { |
7258586f | 1483 | // compute energy loss histogram for |
1484 | // parton type, medium value, length and energy | |
7a76a12e | 1485 | |
b6d061b7 | 1486 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
1487 | if(fMultSoft){ | |
1488 | dummy->SetQTransport(medval); | |
1489 | dummy->InitMult(); | |
1490 | } else { | |
1491 | dummy->SetMu(medval); | |
1492 | dummy->InitSingleHard(); | |
1493 | } | |
1494 | dummy->SampleEnergyLoss(); | |
1495 | ||
1496 | Char_t name[100]; | |
1497 | Char_t hname[100]; | |
1498 | if(ipart==1){ | |
1499 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); | |
1500 | sprintf(hname,"hLossQuarks"); | |
1501 | } else { | |
1502 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); | |
1503 | sprintf(hname,"hLossGluons"); | |
1504 | } | |
1505 | ||
1506 | TH1F *h = new TH1F(hname,name,250,0,250); | |
1507 | for(Int_t i=0;i<100000;i++){ | |
1508 | //if(i % 1000 == 0) cout << "." << flush; | |
1509 | Double_t loss=dummy->GetELossRandom(ipart,l,e); | |
1510 | h->Fill(loss); | |
1511 | } | |
b6d061b7 | 1512 | h->SetStats(kTRUE); |
b6d061b7 | 1513 | delete dummy; |
1514 | return h; | |
1515 | } | |
1516 | ||
e99e3ed5 | 1517 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,TH1F *hEll,Double_t e) const |
b6d061b7 | 1518 | { |
7258586f | 1519 | // compute energy loss histogram for |
1520 | // parton type, medium value, | |
1521 | // length distribution and energy | |
7a76a12e | 1522 | |
b6d061b7 | 1523 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
1524 | if(fMultSoft){ | |
1525 | dummy->SetQTransport(medval); | |
1526 | dummy->InitMult(); | |
1527 | } else { | |
1528 | dummy->SetMu(medval); | |
1529 | dummy->InitSingleHard(); | |
1530 | } | |
1531 | dummy->SampleEnergyLoss(); | |
1532 | ||
1533 | Char_t name[100]; | |
1534 | Char_t hname[100]; | |
1535 | if(ipart==1){ | |
1536 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); | |
1537 | sprintf(hname,"hLossQuarks"); | |
1538 | } else { | |
1539 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); | |
1540 | sprintf(hname,"hLossGluons"); | |
1541 | } | |
1542 | ||
1543 | TH1F *h = new TH1F(hname,name,250,0,250); | |
1544 | for(Int_t i=0;i<100000;i++){ | |
1545 | //if(i % 1000 == 0) cout << "." << flush; | |
1546 | Double_t loss=dummy->GetELossRandom(ipart,hEll,e); | |
1547 | h->Fill(loss); | |
1548 | } | |
b6d061b7 | 1549 | h->SetStats(kTRUE); |
b6d061b7 | 1550 | delete dummy; |
1551 | return h; | |
1552 | } | |
1553 | ||
b90de01a | 1554 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t r) const |
7258586f | 1555 | { |
1556 | // compute energy loss histogram for | |
1557 | // parton type and given R | |
1558 | ||
b90de01a | 1559 | TH1F *dummy = ComputeQWHistoX(ipart,r); |
7258586f | 1560 | if(!dummy) return 0; |
1561 | ||
1562 | Char_t hname[100]; | |
b90de01a | 1563 | sprintf(hname,"hELossHistox_%d_%.2f",ipart,r); |
2552c51a | 1564 | TH1F *histx = new TH1F("histxr",hname,fgkBins,0.,fgkMaxBin); |
7258586f | 1565 | for(Int_t i=0;i<100000;i++){ |
1566 | //if(i % 1000 == 0) cout << "." << flush; | |
1567 | Double_t loss=dummy->GetRandom(); | |
1568 | histx->Fill(loss); | |
1569 | } | |
1570 | delete dummy; | |
1571 | return histx; | |
1572 | } | |
1573 | ||
1574 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t medval,Double_t l) const | |
1575 | { | |
1576 | // compute average energy loss for | |
1577 | // parton type, medium value, length and energy | |
1578 | ||
1579 | TH1F *dummy = ComputeELossHisto(ipart,medval,l); | |
1580 | if(!dummy) return 0; | |
1581 | Double_t ret=dummy->GetMean(); | |
1582 | delete dummy; | |
1583 | return ret; | |
1584 | } | |
1585 | ||
1586 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t medval,TH1F *hEll) const | |
1587 | { | |
1588 | // compute average energy loss for | |
1589 | // parton type, medium value, | |
1590 | // length distribution and energy | |
1591 | ||
1592 | TH1F *dummy = ComputeELossHisto(ipart,medval,hEll); | |
1593 | if(!dummy) return 0; | |
1594 | Double_t ret=dummy->GetMean(); | |
1595 | delete dummy; | |
1596 | return ret; | |
1597 | } | |
1598 | ||
b90de01a | 1599 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t r) const |
7258586f | 1600 | { |
1601 | // compute average energy loss over wc | |
1602 | // for parton type and given R | |
1603 | ||
b90de01a | 1604 | TH1F *dummy = ComputeELossHisto(ipart,r); |
7258586f | 1605 | if(!dummy) return 0; |
1606 | Double_t ret=dummy->GetMean(); | |
1607 | delete dummy; | |
1608 | return ret; | |
1609 | } | |
1610 | ||
9175f0df | 1611 | void AliQuenchingWeights::PlotDiscreteWeights(Double_t len,Double_t qm) const |
b6d061b7 | 1612 | { |
7258586f | 1613 | // plot discrete weights for given length |
7a76a12e | 1614 | |
b6d061b7 | 1615 | TCanvas *c; |
1616 | if(fMultSoft) | |
1617 | c = new TCanvas("cdiscms","Discrete Weight for Multiple Scattering",0,0,500,400); | |
1618 | else | |
1619 | c = new TCanvas("cdiscsh","Discrete Weight for Single Hard Scattering",0,0,500,400); | |
1620 | c->cd(); | |
1621 | ||
9175f0df | 1622 | TH2F *hframe = new TH2F("hdisc","",2,0,qm+.1,2,0,1.25); |
b6d061b7 | 1623 | hframe->SetStats(0); |
1624 | if(fMultSoft) | |
1625 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1626 | else | |
1627 | hframe->SetXTitle("#mu [GeV]"); | |
9175f0df | 1628 | //hframe->SetYTitle("Probability #Delta E = 0 , p_{0}"); |
1629 | hframe->SetYTitle("p_{0} (discrete weight)"); | |
b6d061b7 | 1630 | hframe->Draw(); |
1631 | ||
9175f0df | 1632 | Int_t points=(Int_t)qm*4; |
1633 | TGraph *gq=new TGraph(points); | |
b6d061b7 | 1634 | Int_t i=0; |
1635 | if(fMultSoft) { | |
9175f0df | 1636 | for(Double_t q=0.05;q<=qm+.05;q+=0.25){ |
b6d061b7 | 1637 | Double_t disc,cont; |
7258586f | 1638 | CalcMult(1,1.0,q,len,cont,disc); |
b6d061b7 | 1639 | gq->SetPoint(i,q,disc);i++; |
1640 | } | |
1641 | } else { | |
9175f0df | 1642 | for(Double_t m=0.05;m<=qm+.05;m+=0.25){ |
b6d061b7 | 1643 | Double_t disc,cont; |
7258586f | 1644 | CalcSingleHard(1,1.0,m,len,cont, disc); |
b6d061b7 | 1645 | gq->SetPoint(i,m,disc);i++; |
1646 | } | |
1647 | } | |
1648 | gq->SetMarkerStyle(20); | |
9175f0df | 1649 | gq->SetMarkerColor(1); |
1650 | gq->SetLineStyle(1); | |
1651 | gq->SetLineColor(1); | |
1652 | gq->Draw("l"); | |
b6d061b7 | 1653 | |
9175f0df | 1654 | TGraph *gg=new TGraph(points); |
b6d061b7 | 1655 | i=0; |
1656 | if(fMultSoft){ | |
9175f0df | 1657 | for(Double_t q=0.05;q<=qm+.05;q+=0.25){ |
b6d061b7 | 1658 | Double_t disc,cont; |
7258586f | 1659 | CalcMult(2,1.0,q,len,cont,disc); |
b6d061b7 | 1660 | gg->SetPoint(i,q,disc);i++; |
1661 | } | |
1662 | } else { | |
9175f0df | 1663 | for(Double_t m=0.05;m<=qm+.05;m+=0.25){ |
b6d061b7 | 1664 | Double_t disc,cont; |
7258586f | 1665 | CalcSingleHard(2,1.0,m,len,cont,disc); |
b6d061b7 | 1666 | gg->SetPoint(i,m,disc);i++; |
1667 | } | |
1668 | } | |
1669 | gg->SetMarkerStyle(24); | |
9175f0df | 1670 | gg->SetMarkerColor(2); |
1671 | gg->SetLineStyle(2); | |
1672 | gg->SetLineColor(2); | |
1673 | gg->Draw("l"); | |
b6d061b7 | 1674 | |
1675 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1676 | l1a->SetFillStyle(0); | |
1677 | l1a->SetBorderSize(0); | |
1678 | Char_t label[100]; | |
7258586f | 1679 | sprintf(label,"L = %.1f fm",len); |
b6d061b7 | 1680 | l1a->AddEntry(gq,label,""); |
9175f0df | 1681 | l1a->AddEntry(gq,"quark projectile","l"); |
1682 | l1a->AddEntry(gg,"gluon projectile","l"); | |
b6d061b7 | 1683 | l1a->Draw(); |
1684 | ||
1685 | c->Update(); | |
1686 | } | |
1687 | ||
7258586f | 1688 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Double_t ell) const |
b6d061b7 | 1689 | { |
7258586f | 1690 | // plot continous weights for |
1691 | // given parton type and length | |
7a76a12e | 1692 | |
b6d061b7 | 1693 | Float_t medvals[3]; |
1694 | Char_t title[1024]; | |
1695 | Char_t name[1024]; | |
1696 | if(fMultSoft) { | |
1697 | if(itype==1) | |
1698 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); | |
1699 | else if(itype==2) | |
1700 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); | |
1701 | else return; | |
1702 | medvals[0]=4;medvals[1]=1;medvals[2]=0.5; | |
1703 | sprintf(name,"ccont-ms-%d",itype); | |
1704 | } else { | |
1705 | if(itype==1) | |
1706 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); | |
1707 | else if(itype==2) | |
1708 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); | |
1709 | else return; | |
1710 | medvals[0]=2;medvals[1]=1;medvals[2]=0.5; | |
1711 | sprintf(name,"ccont-ms-%d",itype); | |
1712 | } | |
1713 | ||
1714 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1715 | c->cd(); | |
1716 | TH1F *h1=ComputeQWHisto(itype,medvals[0],ell); | |
1717 | h1->SetName("h1"); | |
1718 | h1->SetTitle(title); | |
1719 | h1->SetStats(0); | |
1720 | h1->SetLineColor(1); | |
1721 | h1->DrawCopy(); | |
1722 | TH1F *h2=ComputeQWHisto(itype,medvals[1],ell); | |
1723 | h2->SetName("h2"); | |
1724 | h2->SetLineColor(2); | |
1725 | h2->DrawCopy("SAME"); | |
1726 | TH1F *h3=ComputeQWHisto(itype,medvals[2],ell); | |
1727 | h3->SetName("h3"); | |
1728 | h3->SetLineColor(3); | |
1729 | h3->DrawCopy("SAME"); | |
1730 | ||
1731 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1732 | l1a->SetFillStyle(0); | |
1733 | l1a->SetBorderSize(0); | |
1734 | Char_t label[100]; | |
7258586f | 1735 | sprintf(label,"L = %.1f fm",ell); |
b6d061b7 | 1736 | l1a->AddEntry(h1,label,""); |
1737 | if(fMultSoft) { | |
1738 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[0]); | |
1739 | l1a->AddEntry(h1,label,"pl"); | |
1740 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[1]); | |
1741 | l1a->AddEntry(h2,label,"pl"); | |
1742 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[2]); | |
1743 | l1a->AddEntry(h3,label,"pl"); | |
1744 | } else { | |
1745 | sprintf(label,"#mu = %.1f GeV",medvals[0]); | |
1746 | l1a->AddEntry(h1,label,"pl"); | |
1747 | sprintf(label,"#mu = %.1f GeV",medvals[1]); | |
1748 | l1a->AddEntry(h2,label,"pl"); | |
1749 | sprintf(label,"#mu = %.1f GeV",medvals[2]); | |
1750 | l1a->AddEntry(h3,label,"pl"); | |
1751 | } | |
1752 | l1a->Draw(); | |
1753 | ||
1754 | c->Update(); | |
1755 | } | |
1756 | ||
7258586f | 1757 | void AliQuenchingWeights::PlotContWeightsVsL(Int_t itype,Double_t medval) const |
b6d061b7 | 1758 | { |
7258586f | 1759 | // plot continous weights for |
1760 | // given parton type and medium value | |
7a76a12e | 1761 | |
b6d061b7 | 1762 | Char_t title[1024]; |
1763 | Char_t name[1024]; | |
1764 | if(fMultSoft) { | |
1765 | if(itype==1) | |
1766 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); | |
1767 | else if(itype==2) | |
1768 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); | |
1769 | else return; | |
1770 | sprintf(name,"ccont2-ms-%d",itype); | |
1771 | } else { | |
1772 | if(itype==1) | |
1773 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); | |
1774 | else if(itype==2) | |
1775 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); | |
1776 | else return; | |
1777 | sprintf(name,"ccont2-sh-%d",itype); | |
1778 | } | |
1779 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1780 | c->cd(); | |
1781 | TH1F *h1=ComputeQWHisto(itype,medval,8); | |
1782 | h1->SetName("h1"); | |
1783 | h1->SetTitle(title); | |
1784 | h1->SetStats(0); | |
1785 | h1->SetLineColor(1); | |
1786 | h1->DrawCopy(); | |
1787 | TH1F *h2=ComputeQWHisto(itype,medval,5); | |
1788 | h2->SetName("h2"); | |
1789 | h2->SetLineColor(2); | |
1790 | h2->DrawCopy("SAME"); | |
1791 | TH1F *h3=ComputeQWHisto(itype,medval,2); | |
1792 | h3->SetName("h3"); | |
1793 | h3->SetLineColor(3); | |
1794 | h3->DrawCopy("SAME"); | |
1795 | ||
1796 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1797 | l1a->SetFillStyle(0); | |
1798 | l1a->SetBorderSize(0); | |
1799 | Char_t label[100]; | |
1800 | if(fMultSoft) | |
1801 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medval); | |
1802 | else | |
1803 | sprintf(label,"#mu = %.1f GeV",medval); | |
1804 | ||
1805 | l1a->AddEntry(h1,label,""); | |
1806 | l1a->AddEntry(h1,"L = 8 fm","pl"); | |
1807 | l1a->AddEntry(h2,"L = 5 fm","pl"); | |
1808 | l1a->AddEntry(h3,"L = 2 fm","pl"); | |
1809 | l1a->Draw(); | |
1810 | ||
1811 | c->Update(); | |
1812 | } | |
1813 | ||
9175f0df | 1814 | void AliQuenchingWeights::PlotAvgELoss(Double_t len,Double_t qm,Double_t e) const |
b6d061b7 | 1815 | { |
7258586f | 1816 | // plot average energy loss for given length |
1817 | // and parton energy | |
7a76a12e | 1818 | |
b6d061b7 | 1819 | if(!fTablesLoaded){ |
7258586f | 1820 | Error("PlotAvgELoss","Tables are not loaded."); |
b6d061b7 | 1821 | return; |
1822 | } | |
1823 | ||
1824 | Char_t title[1024]; | |
1825 | Char_t name[1024]; | |
1826 | if(fMultSoft){ | |
7258586f | 1827 | sprintf(title,"Average Energy Loss for Multiple Scattering"); |
b6d061b7 | 1828 | sprintf(name,"cavgelossms"); |
1829 | } else { | |
7258586f | 1830 | sprintf(title,"Average Energy Loss for Single Hard Scattering"); |
b6d061b7 | 1831 | sprintf(name,"cavgelosssh"); |
1832 | } | |
1833 | ||
1834 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1835 | c->cd(); | |
9175f0df | 1836 | TH2F *hframe = new TH2F("avgloss","",2,0,qm+.1,2,0,100); |
b6d061b7 | 1837 | hframe->SetStats(0); |
1838 | if(fMultSoft) | |
1839 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1840 | else | |
1841 | hframe->SetXTitle("#mu [GeV]"); | |
1842 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1843 | hframe->Draw(); | |
1844 | ||
1845 | TGraph *gq=new TGraph(20); | |
1846 | Int_t i=0; | |
9175f0df | 1847 | for(Double_t v=0.05;v<=qm+.05;v+=0.25){ |
b6d061b7 | 1848 | TH1F *dummy=ComputeELossHisto(1,v,len,e); |
1849 | Double_t avgloss=dummy->GetMean(); | |
1850 | gq->SetPoint(i,v,avgloss);i++; | |
1851 | delete dummy; | |
1852 | } | |
9175f0df | 1853 | gq->SetMarkerStyle(21); |
b6d061b7 | 1854 | gq->Draw("pl"); |
1855 | ||
9175f0df | 1856 | Int_t points=(Int_t)qm*4; |
1857 | TGraph *gg=new TGraph(points); | |
b6d061b7 | 1858 | i=0; |
9175f0df | 1859 | for(Double_t v=0.05;v<=qm+.05;v+=0.25){ |
b6d061b7 | 1860 | TH1F *dummy=ComputeELossHisto(2,v,len,e); |
1861 | Double_t avgloss=dummy->GetMean(); | |
1862 | gg->SetPoint(i,v,avgloss);i++; | |
1863 | delete dummy; | |
1864 | } | |
9175f0df | 1865 | gg->SetMarkerStyle(20); |
1866 | gg->SetMarkerColor(2); | |
b6d061b7 | 1867 | gg->Draw("pl"); |
1868 | ||
9175f0df | 1869 | TGraph *gratio=new TGraph(points); |
599b2e92 | 1870 | for(i=0;i<points;i++){ |
7258586f | 1871 | Double_t x,y,x2,y2; |
1872 | gg->GetPoint(i,x,y); | |
1873 | gq->GetPoint(i,x2,y2); | |
1874 | if(y2>0) | |
1875 | gratio->SetPoint(i,x,y/y2*10/2.25); | |
1876 | else gratio->SetPoint(i,x,0); | |
1877 | } | |
1878 | gratio->SetLineStyle(4); | |
1879 | gratio->Draw(); | |
9175f0df | 1880 | TLegend *l1a = new TLegend(0.15,0.60,0.50,0.90); |
b6d061b7 | 1881 | l1a->SetFillStyle(0); |
1882 | l1a->SetBorderSize(0); | |
1883 | Char_t label[100]; | |
7258586f | 1884 | sprintf(label,"L = %.1f fm",len); |
b6d061b7 | 1885 | l1a->AddEntry(gq,label,""); |
9175f0df | 1886 | l1a->AddEntry(gq,"quark projectile","pl"); |
1887 | l1a->AddEntry(gg,"gluon projectile","pl"); | |
7258586f | 1888 | l1a->AddEntry(gratio,"gluon/quark/2.25*10","pl"); |
b6d061b7 | 1889 | l1a->Draw(); |
1890 | ||
1891 | c->Update(); | |
1892 | } | |
1893 | ||
e99e3ed5 | 1894 | void AliQuenchingWeights::PlotAvgELoss(TH1F *hEll,Double_t e) const |
b6d061b7 | 1895 | { |
7258586f | 1896 | // plot average energy loss for given |
1897 | // length distribution and parton energy | |
7a76a12e | 1898 | |
b6d061b7 | 1899 | if(!fTablesLoaded){ |
7258586f | 1900 | Error("PlotAvgELossVs","Tables are not loaded."); |
b6d061b7 | 1901 | return; |
1902 | } | |
1903 | ||
1904 | Char_t title[1024]; | |
1905 | Char_t name[1024]; | |
1906 | if(fMultSoft){ | |
7258586f | 1907 | sprintf(title,"Average Energy Loss for Multiple Scattering"); |
b6d061b7 | 1908 | sprintf(name,"cavgelossms2"); |
1909 | } else { | |
7258586f | 1910 | sprintf(title,"Average Energy Loss for Single Hard Scattering"); |
b6d061b7 | 1911 | sprintf(name,"cavgelosssh2"); |
1912 | } | |
1913 | ||
1914 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1915 | c->cd(); | |
1916 | TH2F *hframe = new TH2F("havgloss",title,2,0,5.1,2,0,100); | |
1917 | hframe->SetStats(0); | |
1918 | if(fMultSoft) | |
1919 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1920 | else | |
1921 | hframe->SetXTitle("#mu [GeV]"); | |
1922 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1923 | hframe->Draw(); | |
1924 | ||
1925 | TGraph *gq=new TGraph(20); | |
1926 | Int_t i=0; | |
1927 | for(Double_t v=0.05;v<=5.05;v+=0.25){ | |
1928 | TH1F *dummy=ComputeELossHisto(1,v,hEll,e); | |
1929 | Double_t avgloss=dummy->GetMean(); | |
1930 | gq->SetPoint(i,v,avgloss);i++; | |
1931 | delete dummy; | |
1932 | } | |
1933 | gq->SetMarkerStyle(20); | |
1934 | gq->Draw("pl"); | |
1935 | ||
1936 | TGraph *gg=new TGraph(20); | |
1937 | i=0; | |
1938 | for(Double_t v=0.05;v<=5.05;v+=0.25){ | |
1939 | TH1F *dummy=ComputeELossHisto(2,v,hEll,e); | |
1940 | Double_t avgloss=dummy->GetMean(); | |
1941 | gg->SetPoint(i,v,avgloss);i++; | |
1942 | delete dummy; | |
1943 | } | |
1944 | gg->SetMarkerStyle(24); | |
1945 | gg->Draw("pl"); | |
1946 | ||
7258586f | 1947 | TGraph *gratio=new TGraph(20); |
7e7b00ac | 1948 | for(i=0;i<20;i++){ |
7258586f | 1949 | Double_t x,y,x2,y2; |
1950 | gg->GetPoint(i,x,y); | |
1951 | gq->GetPoint(i,x2,y2); | |
1952 | if(y2>0) | |
1953 | gratio->SetPoint(i,x,y/y2*10/2.25); | |
1954 | else gratio->SetPoint(i,x,0); | |
1955 | } | |
1956 | gratio->SetLineStyle(4); | |
9175f0df | 1957 | //gratio->Draw(); |
7258586f | 1958 | |
b6d061b7 | 1959 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
1960 | l1a->SetFillStyle(0); | |
1961 | l1a->SetBorderSize(0); | |
1962 | Char_t label[100]; | |
1963 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); | |
1964 | l1a->AddEntry(gq,label,""); | |
1965 | l1a->AddEntry(gq,"quark","pl"); | |
1966 | l1a->AddEntry(gg,"gluon","pl"); | |
9175f0df | 1967 | //l1a->AddEntry(gratio,"gluon/quark/2.25*10","pl"); |
b6d061b7 | 1968 | l1a->Draw(); |
1969 | ||
1970 | c->Update(); | |
1971 | } | |
1972 | ||
9d851d20 | 1973 | void AliQuenchingWeights::PlotAvgELossVsL(Double_t e) const |
b6d061b7 | 1974 | { |
7258586f | 1975 | // plot average energy loss versus ell |
7a76a12e | 1976 | |
b6d061b7 | 1977 | if(!fTablesLoaded){ |
7258586f | 1978 | Error("PlotAvgELossVsEll","Tables are not loaded."); |
1979 | return; | |
1980 | } | |
1981 | ||
1982 | Char_t title[1024]; | |
1983 | Char_t name[1024]; | |
1984 | Float_t medval; | |
1985 | if(fMultSoft){ | |
1986 | sprintf(title,"Average Energy Loss for Multiple Scattering"); | |
1987 | sprintf(name,"cavgelosslms"); | |
1988 | medval=fQTransport; | |
1989 | } else { | |
1990 | sprintf(title,"Average Energy Loss for Single Hard Scattering"); | |
1991 | sprintf(name,"cavgelosslsh"); | |
1992 | medval=fMu; | |
1993 | } | |
1994 | ||
1995 | TCanvas *c = new TCanvas(name,title,0,0,600,400); | |
1996 | c->cd(); | |
1997 | TH2F *hframe = new TH2F("avglossell",title,2,0,fLengthMax,2,0,250); | |
1998 | hframe->SetStats(0); | |
1999 | hframe->SetXTitle("length [fm]"); | |
2000 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
2001 | hframe->Draw(); | |
2002 | ||
2003 | TGraph *gq=new TGraph((Int_t)fLengthMax*4); | |
2004 | Int_t i=0; | |
2005 | for(Double_t v=0.25;v<=fLengthMax;v+=0.25){ | |
2006 | TH1F *dummy=ComputeELossHisto(1,medval,v,e); | |
2007 | Double_t avgloss=dummy->GetMean(); | |
2008 | gq->SetPoint(i,v,avgloss);i++; | |
2009 | delete dummy; | |
2010 | } | |
2011 | gq->SetMarkerStyle(20); | |
2012 | gq->Draw("pl"); | |
2013 | ||
2014 | TGraph *gg=new TGraph((Int_t)fLengthMax*4); | |
2015 | i=0; | |
2016 | for(Double_t v=0.25;v<=fLengthMax;v+=0.25){ | |
2017 | TH1F *dummy=ComputeELossHisto(2,medval,v,e); | |
2018 | Double_t avgloss=dummy->GetMean(); | |
2019 | gg->SetPoint(i,v,avgloss);i++; | |
2020 | delete dummy; | |
2021 | } | |
2022 | gg->SetMarkerStyle(24); | |
2023 | gg->Draw("pl"); | |
2024 | ||
2025 | TGraph *gratio=new TGraph((Int_t)fLengthMax*4); | |
7e7b00ac | 2026 | for(i=0;i<=(Int_t)fLengthMax*4;i++){ |
7258586f | 2027 | Double_t x,y,x2,y2; |
2028 | gg->GetPoint(i,x,y); | |
2029 | gq->GetPoint(i,x2,y2); | |
2030 | if(y2>0) | |
2031 | gratio->SetPoint(i,x,y/y2*100/2.25); | |
2032 | else gratio->SetPoint(i,x,0); | |
2033 | } | |
2034 | gratio->SetLineStyle(1); | |
2035 | gratio->SetLineWidth(2); | |
2036 | gratio->Draw(); | |
2037 | TLegend *l1a = new TLegend(0.15,0.65,.60,0.85); | |
2038 | l1a->SetFillStyle(0); | |
2039 | l1a->SetBorderSize(0); | |
2040 | Char_t label[100]; | |
2041 | if(fMultSoft) | |
2042 | sprintf(label,"#hat{q} = %.2f GeV^{2}/fm",medval); | |
2043 | else | |
2044 | sprintf(label,"#mu = %.2f GeV",medval); | |
2045 | l1a->AddEntry(gq,label,""); | |
2046 | l1a->AddEntry(gq,"quark","pl"); | |
2047 | l1a->AddEntry(gg,"gluon","pl"); | |
2048 | l1a->AddEntry(gratio,"gluon/quark/2.25*100","pl"); | |
2049 | l1a->Draw(); | |
2050 | ||
2051 | TF1 *f=new TF1("f","100",0,fLengthMax); | |
2052 | f->SetLineStyle(4); | |
2053 | f->SetLineWidth(1); | |
2054 | f->Draw("same"); | |
2055 | c->Update(); | |
2056 | } | |
2057 | ||
2058 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,Double_t len) const | |
2059 | { | |
2060 | // plot relative energy loss for given | |
2061 | // length and parton energy versus pt | |
2062 | ||
2063 | if(!fTablesLoaded){ | |
2064 | Error("PlotAvgELossVsPt","Tables are not loaded."); | |
b6d061b7 | 2065 | return; |
2066 | } | |
2067 | ||
2068 | Char_t title[1024]; | |
2069 | Char_t name[1024]; | |
2070 | if(fMultSoft){ | |
7258586f | 2071 | sprintf(title,"Relative Energy Loss for Multiple Scattering"); |
b6d061b7 | 2072 | sprintf(name,"cavgelossvsptms"); |
2073 | } else { | |
7258586f | 2074 | sprintf(title,"Relative Energy Loss for Single Hard Scattering"); |
b6d061b7 | 2075 | sprintf(name,"cavgelossvsptsh"); |
2076 | } | |
2077 | ||
2078 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
2079 | c->cd(); | |
2080 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); | |
2081 | hframe->SetStats(0); | |
2082 | hframe->SetXTitle("p_{T} [GeV]"); | |
2083 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); | |
2084 | hframe->Draw(); | |
2085 | ||
2086 | TGraph *gq=new TGraph(40); | |
2087 | Int_t i=0; | |
2088 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2089 | TH1F *dummy=ComputeELossHisto(1,medval,len,pt); | |
2090 | Double_t avgloss=dummy->GetMean(); | |
2091 | gq->SetPoint(i,pt,avgloss/pt);i++; | |
2092 | delete dummy; | |
2093 | } | |
2094 | gq->SetMarkerStyle(20); | |
2095 | gq->Draw("pl"); | |
2096 | ||
2097 | TGraph *gg=new TGraph(40); | |
2098 | i=0; | |
2099 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2100 | TH1F *dummy=ComputeELossHisto(2,medval,len,pt); | |
2101 | Double_t avgloss=dummy->GetMean(); | |
2102 | gg->SetPoint(i,pt,avgloss/pt);i++; | |
2103 | delete dummy; | |
2104 | } | |
2105 | gg->SetMarkerStyle(24); | |
2106 | gg->Draw("pl"); | |
2107 | ||
2108 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
2109 | l1a->SetFillStyle(0); | |
2110 | l1a->SetBorderSize(0); | |
2111 | Char_t label[100]; | |
7258586f | 2112 | sprintf(label,"L = %.1f fm",len); |
b6d061b7 | 2113 | l1a->AddEntry(gq,label,""); |
2114 | l1a->AddEntry(gq,"quark","pl"); | |
2115 | l1a->AddEntry(gg,"gluon","pl"); | |
2116 | l1a->Draw(); | |
2117 | ||
2118 | c->Update(); | |
2119 | } | |
2120 | ||
2121 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,TH1F *hEll) const | |
2122 | { | |
7258586f | 2123 | // plot relative energy loss for given |
2124 | // length distribution and parton energy versus pt | |
7a76a12e | 2125 | |
b6d061b7 | 2126 | if(!fTablesLoaded){ |
7258586f | 2127 | Error("PlotAvgELossVsPt","Tables are not loaded."); |
b6d061b7 | 2128 | return; |
2129 | } | |
2130 | ||
2131 | Char_t title[1024]; | |
2132 | Char_t name[1024]; | |
2133 | if(fMultSoft){ | |
7258586f | 2134 | sprintf(title,"Relative Energy Loss for Multiple Scattering"); |
b6d061b7 | 2135 | sprintf(name,"cavgelossvsptms2"); |
2136 | } else { | |
7258586f | 2137 | sprintf(title,"Relative Energy Loss for Single Hard Scattering"); |
b6d061b7 | 2138 | sprintf(name,"cavgelossvsptsh2"); |
2139 | } | |
2140 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
2141 | c->cd(); | |
2142 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); | |
2143 | hframe->SetStats(0); | |
2144 | hframe->SetXTitle("p_{T} [GeV]"); | |
2145 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); | |
2146 | hframe->Draw(); | |
2147 | ||
2148 | TGraph *gq=new TGraph(40); | |
2149 | Int_t i=0; | |
2150 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2151 | TH1F *dummy=ComputeELossHisto(1,medval,hEll,pt); | |
2152 | Double_t avgloss=dummy->GetMean(); | |
2153 | gq->SetPoint(i,pt,avgloss/pt);i++; | |
2154 | delete dummy; | |
2155 | } | |
2156 | gq->SetMarkerStyle(20); | |
2157 | gq->Draw("pl"); | |
2158 | ||
2159 | TGraph *gg=new TGraph(40); | |
2160 | i=0; | |
2161 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2162 | TH1F *dummy=ComputeELossHisto(2,medval,hEll,pt); | |
2163 | Double_t avgloss=dummy->GetMean(); | |
2164 | gg->SetPoint(i,pt,avgloss/pt);i++; | |
2165 | delete dummy; | |
2166 | } | |
2167 | gg->SetMarkerStyle(24); | |
2168 | gg->Draw("pl"); | |
2169 | ||
2170 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
2171 | l1a->SetFillStyle(0); | |
2172 | l1a->SetBorderSize(0); | |
2173 | Char_t label[100]; | |
2174 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); | |
2175 | l1a->AddEntry(gq,label,""); | |
2176 | l1a->AddEntry(gq,"quark","pl"); | |
2177 | l1a->AddEntry(gg,"gluon","pl"); | |
2178 | l1a->Draw(); | |
2179 | ||
2180 | c->Update(); | |
2181 | } | |
2182 | ||
7258586f | 2183 | Int_t AliQuenchingWeights::GetIndex(Double_t len) const |
2184 | { | |
b90de01a | 2185 | //get the index according to length |
7258586f | 2186 | if(len>fLengthMax) len=fLengthMax; |
2187 | ||
9d851d20 | 2188 | Int_t l=Int_t(len/0.25); |
cc885e36 | 2189 | if((len-l*0.25)>0.125) l++; |
7258586f | 2190 | return l; |
2191 | } | |
ea16e52f | 2192 |