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