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