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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> | |
2b065d85 | 43 | #include <TString.h> |
b6d061b7 | 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() |
e6e76983 | 64 | : TObject(), |
65 | fInstanceNumber(fgCounter++), | |
66 | fMultSoft(kTRUE), | |
67 | fECMethod(kDefault), | |
68 | fQTransport(1.), | |
69 | fMu(1.), | |
70 | fK(4.e5), | |
71 | fLengthMax(20), | |
72 | fLengthMaxOld(0), | |
73 | fHistos(0), | |
74 | fHisto(0), | |
75 | fTablesLoaded(kFALSE) | |
b6d061b7 | 76 | { |
7a76a12e | 77 | //default constructor |
2b065d85 | 78 | fHisto = new TH1F(Form("hhistoqw_%d",fInstanceNumber),"",fgkBins,0.,fgkMaxBin); |
2552c51a | 79 | for(Int_t bin=1;bin<=fgkBins;bin++) |
7258586f | 80 | fHisto->SetBinContent(bin,0.); |
b6d061b7 | 81 | } |
82 | ||
83 | AliQuenchingWeights::AliQuenchingWeights(const AliQuenchingWeights& a) | |
e6e76983 | 84 | : TObject(), |
85 | fInstanceNumber(fgCounter++), | |
86 | fMultSoft(kTRUE), | |
87 | fECMethod(kDefault), | |
88 | fQTransport(1.), | |
89 | fMu(1.), | |
90 | fK(4.e5), | |
91 | fLengthMax(20), | |
92 | fLengthMaxOld(0), | |
93 | fHistos(0), | |
94 | fHisto(0), | |
95 | fTablesLoaded(kFALSE) | |
b6d061b7 | 96 | { |
7258586f | 97 | // copy constructor |
7a76a12e | 98 | |
b6d061b7 | 99 | fTablesLoaded=kFALSE; |
100 | fHistos=0; | |
101 | fLengthMaxOld=0; | |
102 | fMultSoft=a.GetMultSoft();; | |
103 | fMu=a.GetMu(); | |
7258586f | 104 | fK=a.GetK(); |
b6d061b7 | 105 | fQTransport=a.GetQTransport(); |
106 | fECMethod=(kECMethod)a.GetECMethod(); | |
107 | fLengthMax=a.GetLengthMax(); | |
7a76a12e | 108 | fInstanceNumber=fgCounter++; |
2b065d85 | 109 | fHisto = new TH1F(Form("hhistoqw_%d",fInstanceNumber),"",fgkBins,0.,fgkMaxBin); |
2552c51a | 110 | for(Int_t bin=1;bin<=fgkBins;bin++) |
7258586f | 111 | fHisto->SetBinContent(bin,0.); |
112 | ||
b6d061b7 | 113 | //Missing in the class is the pathname |
114 | //to the tables, can be added if needed | |
115 | } | |
116 | ||
117 | AliQuenchingWeights::~AliQuenchingWeights() | |
118 | { | |
119 | Reset(); | |
7258586f | 120 | delete fHisto; |
b6d061b7 | 121 | } |
122 | ||
123 | void AliQuenchingWeights::Reset() | |
124 | { | |
7a76a12e | 125 | //reset tables if there were used |
126 | ||
b6d061b7 | 127 | if(!fHistos) return; |
9d851d20 | 128 | for(Int_t l=0;l<4*fLengthMaxOld;l++){ |
b6d061b7 | 129 | delete fHistos[0][l]; |
130 | delete fHistos[1][l]; | |
131 | } | |
132 | delete[] fHistos; | |
133 | fHistos=0; | |
134 | fLengthMaxOld=0; | |
135 | } | |
136 | ||
137 | void AliQuenchingWeights::SetECMethod(kECMethod type) | |
138 | { | |
7a76a12e | 139 | //set energy constraint method |
140 | ||
b6d061b7 | 141 | fECMethod=type; |
142 | if(fECMethod==kDefault) | |
143 | Info("SetECMethod","Energy Constraint Method set to DEFAULT:\nIf (sampled energy loss > parton energy) then sampled energy loss = parton energy."); | |
b677de56 | 144 | else if(fECMethod==kReweight) |
b6d061b7 | 145 | Info("SetECMethod","Energy Constraint Method set to REWEIGHT:\nRequire sampled energy loss <= parton energy."); |
b677de56 | 146 | else Info("SetECMethod","Energy Constraint Method set to REWEIGHTCONT:\nRequire sampled energy loss <= parton energy (only implemented for FAST method."); |
b6d061b7 | 147 | } |
148 | ||
149 | Int_t AliQuenchingWeights::InitMult(const Char_t *contall,const Char_t *discall) | |
150 | { | |
151 | // read in tables for multiple scattering approximation | |
152 | // path to continuum and to discrete part | |
153 | ||
154 | fTablesLoaded = kFALSE; | |
155 | fMultSoft=kTRUE; | |
156 | ||
bb545331 | 157 | //PH ifstream fincont(fname); |
2b065d85 | 158 | fstream fincont(Form("%s",gSystem->ExpandPathName(contall)),ios::in); |
bb545331 | 159 | #if defined(__HP_aCC) || defined(__DECCXX) |
160 | if(!fincont.rdbuf()->is_open()) return -1; | |
161 | #else | |
b6d061b7 | 162 | if(!fincont.is_open()) return -1; |
bb545331 | 163 | #endif |
b6d061b7 | 164 | |
165 | Int_t nn=0; //quarks | |
166 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> | |
167 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> | |
7a76a12e | 168 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>>fcaq[13][nn]>> |
169 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>>fcaq[18][nn]>> | |
170 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>>fcaq[23][nn]>> | |
171 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>>fcaq[28][nn]>> | |
172 | fcaq[29][nn]>>fcaq[30][nn]>>fcaq[31][nn]>>fcaq[32][nn]>>fcaq[33][nn]) | |
b6d061b7 | 173 | { |
174 | nn++; | |
175 | if(nn==261) break; | |
176 | } | |
177 | ||
178 | nn=0; //gluons | |
179 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> | |
180 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> | |
7a76a12e | 181 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>>fcag[13][nn]>> |
182 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>>fcag[18][nn]>> | |
183 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>>fcag[23][nn]>> | |
184 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>>fcag[28][nn]>> | |
185 | fcag[29][nn]>>fcag[30][nn]>>fcag[31][nn]>>fcag[32][nn]>>fcag[33][nn]) | |
186 | { | |
b6d061b7 | 187 | nn++; |
188 | if(nn==261) break; | |
189 | } | |
190 | fincont.close(); | |
191 | ||
bb545331 | 192 | //PH ifstream findisc(fname); |
2b065d85 | 193 | fstream findisc(Form("%s",gSystem->ExpandPathName(discall)),ios::in); |
bb545331 | 194 | #if defined(__HP_aCC) || defined(__DECCXX) |
195 | if(!findisc.rdbuf()->is_open()) return -1; | |
196 | #else | |
b6d061b7 | 197 | if(!findisc.is_open()) return -1; |
bb545331 | 198 | #endif |
b6d061b7 | 199 | |
200 | nn=0; //quarks | |
201 | while(findisc>>frrr[nn]>>fdaq[nn]) { | |
202 | nn++; | |
7a76a12e | 203 | if(nn==34) break; |
b6d061b7 | 204 | } |
205 | nn=0; //gluons | |
206 | while(findisc>>frrrg[nn]>>fdag[nn]) { | |
207 | nn++; | |
7a76a12e | 208 | if(nn==34) break; |
b6d061b7 | 209 | } |
210 | findisc.close(); | |
211 | fTablesLoaded = kTRUE; | |
212 | return 0; | |
213 | } | |
214 | ||
215 | /* | |
216 | C*************************************************************************** | |
217 | C Quenching Weights for Multiple Soft Scattering | |
218 | C February 10, 2003 | |
219 | C | |
220 | C Refs: | |
221 | C | |
222 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. | |
223 | C | |
224 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. | |
225 | C | |
226 | C | |
227 | C This package contains quenching weights for gluon radiation in the | |
228 | C multiple soft scattering approximation. | |
229 | C | |
230 | C swqmult returns the quenching weight for a quark (ipart=1) or | |
231 | C a gluon (ipart=2) traversing a medium with transport coeficient q and | |
232 | C length L. The input values are rrrr=0.5*q*L^3 and xxxx=w/wc, where | |
233 | C wc=0.5*q*L^2 and w is the energy radiated. The output values are | |
234 | C the continuous and discrete (prefactor of the delta function) parts | |
235 | C of the quenching weights. | |
236 | C | |
237 | C In order to use this routine, the files cont.all and disc.all need to be | |
238 | C in the working directory. | |
239 | C | |
240 | C An initialization of the tables is needed by doing call initmult before | |
241 | C using swqmult. | |
242 | C | |
243 | C Please, send us any comment: | |
244 | C | |
7a76a12e | 245 | C urs.wiedemann@cern.ch |
246 | C carlos.salgado@cern.ch | |
247 | C | |
248 | C | |
b6d061b7 | 249 | C------------------------------------------------------------------- |
250 | ||
251 | SUBROUTINE swqmult(ipart,rrrr,xxxx,continuous,discrete) | |
252 | * | |
7a76a12e | 253 | REAL*8 xx(400), daq(34), caq(34,261), rrr(34) |
b6d061b7 | 254 | COMMON /dataqua/ xx, daq, caq, rrr |
255 | * | |
7a76a12e | 256 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
b6d061b7 | 257 | COMMON /dataglu/ xxg, dag, cag, rrrg |
258 | ||
259 | REAL*8 rrrr,xxxx, continuous, discrete | |
260 | REAL*8 rrin, xxin | |
261 | INTEGER nrlow, nrhigh, nxlow, nxhigh | |
262 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh | |
263 | REAL*8 xfraclow, xfrachigh | |
264 | REAL*8 clow, chigh | |
265 | * | |
7a76a12e | 266 | |
267 | continuous=0.d0 | |
268 | discrete=0.d0 | |
269 | ||
b6d061b7 | 270 | rrin = rrrr |
271 | xxin = xxxx | |
272 | * | |
7a76a12e | 273 | do 666, nr=1,34 |
b6d061b7 | 274 | if (rrin.lt.rrr(nr)) then |
275 | rrhigh = rrr(nr) | |
276 | else | |
277 | rrhigh = rrr(nr-1) | |
278 | rrlow = rrr(nr) | |
279 | nrlow = nr | |
280 | nrhigh = nr-1 | |
281 | goto 665 | |
282 | endif | |
283 | 666 enddo | |
284 | 665 continue | |
285 | * | |
286 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) | |
287 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) | |
7a76a12e | 288 | if (rrin.gt.10000d0) then |
289 | rfraclow = dlog(rrhigh/rrin)/dlog(rrhigh/rrlow) | |
290 | rfrachigh = dlog(rrin/rrlow)/dlog(rrhigh/rrlow) | |
291 | endif | |
292 | * | |
293 | if (ipart.eq.1.and.rrin.ge.rrr(1)) then | |
294 | nrlow=1 | |
295 | nrhigh=1 | |
296 | rfraclow=1 | |
297 | rfrachigh=0 | |
298 | endif | |
299 | ||
300 | if (ipart.ne.1.and.rrin.ge.rrrg(1)) then | |
301 | nrlow=1 | |
302 | nrhigh=1 | |
303 | rfraclow=1 | |
304 | rfrachigh=0 | |
305 | endif | |
306 | ||
307 | if (xxxx.ge.xx(261)) go to 245 | |
308 | ||
309 | nxlow = int(xxin/0.01) + 1 | |
310 | nxhigh = nxlow + 1 | |
311 | xfraclow = (xx(nxhigh)-xxin)/0.01 | |
312 | xfrachigh = (xxin - xx(nxlow))/0.01 | |
b6d061b7 | 313 | * |
314 | if(ipart.eq.1) then | |
315 | clow = xfraclow*caq(nrlow,nxlow)+xfrachigh*caq(nrlow,nxhigh) | |
316 | chigh = xfraclow*caq(nrhigh,nxlow)+xfrachigh*caq(nrhigh,nxhigh) | |
317 | else | |
318 | clow = xfraclow*cag(nrlow,nxlow)+xfrachigh*cag(nrlow,nxhigh) | |
319 | chigh = xfraclow*cag(nrhigh,nxlow)+xfrachigh*cag(nrhigh,nxhigh) | |
320 | endif | |
321 | ||
322 | continuous = rfraclow*clow + rfrachigh*chigh | |
323 | ||
7a76a12e | 324 | 245 continue |
325 | ||
b6d061b7 | 326 | if(ipart.eq.1) then |
327 | discrete = rfraclow*daq(nrlow) + rfrachigh*daq(nrhigh) | |
328 | else | |
329 | discrete = rfraclow*dag(nrlow) + rfrachigh*dag(nrhigh) | |
330 | endif | |
331 | * | |
332 | END | |
333 | ||
334 | subroutine initmult | |
7a76a12e | 335 | REAL*8 xxq(400), daq(34), caq(34,261), rrr(34) |
b6d061b7 | 336 | COMMON /dataqua/ xxq, daq, caq, rrr |
337 | * | |
7a76a12e | 338 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
b6d061b7 | 339 | COMMON /dataglu/ xxg, dag, cag, rrrg |
340 | * | |
7a76a12e | 341 | OPEN(UNIT=20,FILE='contnew.all',STATUS='OLD',ERR=90) |
b6d061b7 | 342 | do 110 nn=1,261 |
343 | read (20,*) xxq(nn), caq(1,nn), caq(2,nn), caq(3,nn), | |
344 | + caq(4,nn), caq(5,nn), caq(6,nn), caq(7,nn), caq(8,nn), | |
345 | + caq(9,nn), caq(10,nn), caq(11,nn), caq(12,nn), | |
346 | + caq(13,nn), | |
347 | + caq(14,nn), caq(15,nn), caq(16,nn), caq(17,nn), | |
348 | + caq(18,nn), | |
349 | + caq(19,nn), caq(20,nn), caq(21,nn), caq(22,nn), | |
350 | + caq(23,nn), | |
351 | + caq(24,nn), caq(25,nn), caq(26,nn), caq(27,nn), | |
352 | + caq(28,nn), | |
7a76a12e | 353 | + caq(29,nn), caq(30,nn), caq(31,nn), caq(32,nn), |
354 | + caq(33,nn), caq(34,nn) | |
b6d061b7 | 355 | 110 continue |
356 | do 111 nn=1,261 | |
357 | read (20,*) xxg(nn), cag(1,nn), cag(2,nn), cag(3,nn), | |
358 | + cag(4,nn), cag(5,nn), cag(6,nn), cag(7,nn), cag(8,nn), | |
359 | + cag(9,nn), cag(10,nn), cag(11,nn), cag(12,nn), | |
360 | + cag(13,nn), | |
361 | + cag(14,nn), cag(15,nn), cag(16,nn), cag(17,nn), | |
362 | + cag(18,nn), | |
363 | + cag(19,nn), cag(20,nn), cag(21,nn), cag(22,nn), | |
364 | + cag(23,nn), | |
365 | + cag(24,nn), cag(25,nn), cag(26,nn), cag(27,nn), | |
366 | + cag(28,nn), | |
7a76a12e | 367 | + cag(29,nn), cag(30,nn), cag(31,nn), cag(32,nn), |
368 | + cag(33,nn), cag(34,nn) | |
b6d061b7 | 369 | 111 continue |
370 | close(20) | |
371 | * | |
7a76a12e | 372 | OPEN(UNIT=21,FILE='discnew.all',STATUS='OLD',ERR=91) |
373 | do 112 nn=1,34 | |
b6d061b7 | 374 | read (21,*) rrr(nn), daq(nn) |
375 | 112 continue | |
7a76a12e | 376 | do 113 nn=1,34 |
b6d061b7 | 377 | read (21,*) rrrg(nn), dag(nn) |
378 | 113 continue | |
379 | close(21) | |
380 | * | |
381 | goto 888 | |
382 | 90 PRINT*, 'input - output error' | |
383 | 91 PRINT*, 'input - output error #2' | |
384 | 888 continue | |
385 | ||
386 | end | |
387 | ||
7a76a12e | 388 | |
b6d061b7 | 389 | ======================================================================= |
390 | ||
391 | Adapted to ROOT macro by A. Dainese - 13/07/2003 | |
7a76a12e | 392 | Ported to class by C. Loizides - 12/02/2004 |
393 | New version for extended R values added - 06/03/2004 | |
b6d061b7 | 394 | */ |
395 | ||
396 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, Double_t rrrr,Double_t xxxx, | |
397 | Double_t &continuous,Double_t &discrete) const | |
398 | { | |
399 | // Calculate Multiple Scattering approx. | |
400 | // weights for given parton type, | |
401 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 | |
402 | ||
7a76a12e | 403 | //set result to zero |
404 | continuous=0.; | |
405 | discrete=0.; | |
406 | ||
7258586f | 407 | //read-in data before first call |
b6d061b7 | 408 | if(!fTablesLoaded){ |
409 | Error("CalcMult","Tables are not loaded."); | |
410 | return -1; | |
411 | } | |
412 | if(!fMultSoft){ | |
413 | Error("CalcMult","Tables are not loaded for Multiple Scattering."); | |
414 | return -1; | |
415 | } | |
416 | ||
417 | Double_t rrin = rrrr; | |
418 | Double_t xxin = xxxx; | |
419 | ||
7a76a12e | 420 | if(xxin>fxx[260]) return -1; |
b6d061b7 | 421 | Int_t nxlow = (Int_t)(xxin/0.01) + 1; |
422 | Int_t nxhigh = nxlow + 1; | |
423 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.01; | |
424 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.01; | |
425 | ||
426 | //why this? | |
7a76a12e | 427 | if(rrin<=frrr[33]) rrin = 1.05*frrr[33]; // AD |
b6d061b7 | 428 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
429 | ||
430 | Int_t nrlow=0,nrhigh=0; | |
431 | Double_t rrhigh=0,rrlow=0; | |
7a76a12e | 432 | for(Int_t nr=1; nr<=34; nr++) { |
b6d061b7 | 433 | if(rrin<frrr[nr-1]) { |
434 | rrhigh = frrr[nr-1]; | |
435 | } else { | |
436 | rrhigh = frrr[nr-1-1]; | |
437 | rrlow = frrr[nr-1]; | |
438 | nrlow = nr; | |
439 | nrhigh = nr-1; | |
440 | break; | |
441 | } | |
442 | } | |
443 | ||
444 | rrin = rrrr; // AD | |
445 | ||
446 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); | |
447 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); | |
448 | ||
7a76a12e | 449 | if(rrin>1.e4){ |
450 | rfraclow = TMath::Log2(rrhigh/rrin)/TMath::Log2(rrhigh/rrlow); | |
451 | rfrachigh = TMath::Log2(rrin/rrlow)/TMath::Log2(rrhigh/rrlow); | |
452 | } | |
453 | if((ipart==1) && (rrin>=frrr[0])) | |
454 | { | |
455 | nrlow=1; | |
456 | nrhigh=1; | |
457 | rfraclow=1.; | |
458 | rfrachigh=0.; | |
459 | } | |
460 | if((ipart==2) && (rrin>=frrrg[0])) | |
461 | { | |
462 | nrlow=1; | |
463 | nrhigh=1; | |
464 | rfraclow=1.; | |
465 | rfrachigh=0.; | |
466 | } | |
467 | ||
b6d061b7 | 468 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
469 | ||
470 | Double_t clow=0,chigh=0; | |
471 | if(ipart==1) { | |
472 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; | |
473 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; | |
474 | } else { | |
475 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; | |
476 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; | |
477 | } | |
478 | ||
479 | continuous = rfraclow*clow + rfrachigh*chigh; | |
480 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", | |
7258586f | 481 | //rfraclow,clow,rfrachigh,chigh,continuous); |
b6d061b7 | 482 | |
483 | if(ipart==1) { | |
484 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; | |
485 | } else { | |
486 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; | |
487 | } | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
492 | Int_t AliQuenchingWeights::InitSingleHard(const Char_t *contall,const Char_t *discall) | |
493 | { | |
494 | // read in tables for Single Hard Approx. | |
495 | // path to continuum and to discrete part | |
496 | ||
497 | fTablesLoaded = kFALSE; | |
498 | fMultSoft=kFALSE; | |
499 | ||
bb545331 | 500 | //PH ifstream fincont(fname); |
2b065d85 | 501 | fstream fincont(Form("%s",gSystem->ExpandPathName(contall)),ios::in); |
bb545331 | 502 | #if defined(__HP_aCC) || defined(__DECCXX) |
503 | if(!fincont.rdbuf()->is_open()) return -1; | |
504 | #else | |
b6d061b7 | 505 | if(!fincont.is_open()) return -1; |
bb545331 | 506 | #endif |
b6d061b7 | 507 | |
508 | Int_t nn=0; //quarks | |
509 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> | |
510 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> | |
511 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>> | |
512 | fcaq[13][nn]>> | |
513 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>> | |
514 | fcaq[18][nn]>> | |
515 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>> | |
516 | fcaq[23][nn]>> | |
517 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>> | |
518 | fcaq[28][nn]>> | |
519 | fcaq[29][nn]) | |
520 | { | |
521 | nn++; | |
522 | if(nn==261) break; | |
523 | } | |
524 | ||
525 | nn=0; //gluons | |
526 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> | |
527 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> | |
528 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>> | |
529 | fcag[13][nn]>> | |
530 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>> | |
531 | fcag[18][nn]>> | |
532 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>> | |
533 | fcag[23][nn]>> | |
534 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>> | |
535 | fcag[28][nn]>> | |
536 | fcag[29][nn]) { | |
537 | nn++; | |
538 | if(nn==261) break; | |
539 | } | |
540 | fincont.close(); | |
541 | ||
bb545331 | 542 | //PH ifstream findisc(fname); |
2b065d85 | 543 | fstream findisc(Form("%s",gSystem->ExpandPathName(discall)),ios::in); |
bb545331 | 544 | #if defined(__HP_aCC) || defined(__DECCXX) |
545 | if(!findisc.rdbuf()->is_open()) return -1; | |
546 | #else | |
b6d061b7 | 547 | if(!findisc.is_open()) return -1; |
bb545331 | 548 | #endif |
b6d061b7 | 549 | |
550 | nn=0; //quarks | |
551 | while(findisc>>frrr[nn]>>fdaq[nn]) { | |
552 | nn++; | |
553 | if(nn==30) break; | |
554 | } | |
555 | nn=0; //gluons | |
556 | while(findisc>>frrrg[nn]>>fdag[nn]) { | |
557 | nn++; | |
558 | if(nn==30) break; | |
559 | } | |
560 | findisc.close(); | |
561 | ||
562 | fTablesLoaded = kTRUE; | |
563 | return 0; | |
564 | } | |
565 | ||
566 | /* | |
567 | C*************************************************************************** | |
568 | C Quenching Weights for Single Hard Scattering | |
569 | C February 20, 2003 | |
570 | C | |
571 | C Refs: | |
572 | C | |
573 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. | |
574 | C | |
575 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. | |
576 | C | |
577 | C | |
578 | C This package contains quenching weights for gluon radiation in the | |
579 | C single hard scattering approximation. | |
580 | C | |
581 | C swqlin returns the quenching weight for a quark (ipart=1) or | |
582 | C a gluon (ipart=2) traversing a medium with Debye screening mass mu and | |
583 | C length L. The input values are rrrr=0.5*mu^2*L^2 and xxxx=w/wc, where | |
584 | C wc=0.5*mu^2*L and w is the energy radiated. The output values are | |
585 | C the continuous and discrete (prefactor of the delta function) parts | |
586 | C of the quenching weights. | |
587 | C | |
588 | C In order to use this routine, the files contlin.all and disclin.all | |
589 | C need to be in the working directory. | |
590 | C | |
591 | C An initialization of the tables is needed by doing call initlin before | |
592 | C using swqlin. | |
593 | C | |
594 | C Please, send us any comment: | |
595 | C | |
596 | C urs.wiedemann@cern.ch | |
597 | C carlos.salgado@cern.ch | |
598 | C | |
599 | C | |
600 | C------------------------------------------------------------------- | |
601 | ||
602 | ||
603 | SUBROUTINE swqlin(ipart,rrrr,xxxx,continuous,discrete) | |
604 | * | |
605 | REAL*8 xx(400), dalq(30), calq(30,261), rrr(30) | |
606 | COMMON /datalinqua/ xx, dalq, calq, rrr | |
607 | * | |
608 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) | |
609 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg | |
610 | ||
611 | REAL*8 rrrr,xxxx, continuous, discrete | |
612 | REAL*8 rrin, xxin | |
613 | INTEGER nrlow, nrhigh, nxlow, nxhigh | |
614 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh | |
615 | REAL*8 xfraclow, xfrachigh | |
616 | REAL*8 clow, chigh | |
617 | * | |
618 | rrin = rrrr | |
619 | xxin = xxxx | |
620 | * | |
621 | nxlow = int(xxin/0.038) + 1 | |
622 | nxhigh = nxlow + 1 | |
623 | xfraclow = (xx(nxhigh)-xxin)/0.038 | |
624 | xfrachigh = (xxin - xx(nxlow))/0.038 | |
625 | * | |
626 | do 666, nr=1,30 | |
627 | if (rrin.lt.rrr(nr)) then | |
628 | rrhigh = rrr(nr) | |
629 | else | |
630 | rrhigh = rrr(nr-1) | |
631 | rrlow = rrr(nr) | |
632 | nrlow = nr | |
633 | nrhigh = nr-1 | |
634 | goto 665 | |
635 | endif | |
636 | 666 enddo | |
637 | 665 continue | |
638 | * | |
639 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) | |
640 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) | |
641 | * | |
642 | if(ipart.eq.1) then | |
643 | clow = xfraclow*calq(nrlow,nxlow)+xfrachigh*calq(nrlow,nxhigh) | |
644 | chigh = xfraclow*calq(nrhigh,nxlow)+xfrachigh*calq(nrhigh,nxhigh) | |
645 | else | |
646 | clow = xfraclow*calg(nrlow,nxlow)+xfrachigh*calg(nrlow,nxhigh) | |
647 | chigh = xfraclow*calg(nrhigh,nxlow)+xfrachigh*calg(nrhigh,nxhigh) | |
648 | endif | |
649 | ||
650 | continuous = rfraclow*clow + rfrachigh*chigh | |
651 | ||
652 | if(ipart.eq.1) then | |
653 | discrete = rfraclow*dalq(nrlow) + rfrachigh*dalq(nrhigh) | |
654 | else | |
655 | discrete = rfraclow*dalg(nrlow) + rfrachigh*dalg(nrhigh) | |
656 | endif | |
657 | * | |
658 | END | |
659 | ||
660 | subroutine initlin | |
661 | REAL*8 xxlq(400), dalq(30), calq(30,261), rrr(30) | |
662 | COMMON /datalinqua/ xxlq, dalq, calq, rrr | |
663 | * | |
664 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) | |
665 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg | |
666 | * | |
667 | OPEN(UNIT=20,FILE='contlin.all',STATUS='OLD',ERR=90) | |
668 | do 110 nn=1,261 | |
669 | read (20,*) xxlq(nn), calq(1,nn), calq(2,nn), calq(3,nn), | |
670 | + calq(4,nn), calq(5,nn), calq(6,nn), calq(7,nn), calq(8,nn), | |
671 | + calq(9,nn), calq(10,nn), calq(11,nn), calq(12,nn), | |
672 | + calq(13,nn), | |
673 | + calq(14,nn), calq(15,nn), calq(16,nn), calq(17,nn), | |
674 | + calq(18,nn), | |
675 | + calq(19,nn), calq(20,nn), calq(21,nn), calq(22,nn), | |
676 | + calq(23,nn), | |
677 | + calq(24,nn), calq(25,nn), calq(26,nn), calq(27,nn), | |
678 | + calq(28,nn), | |
679 | + calq(29,nn), calq(30,nn) | |
680 | 110 continue | |
681 | do 111 nn=1,261 | |
682 | read (20,*) xxlg(nn), calg(1,nn), calg(2,nn), calg(3,nn), | |
683 | + calg(4,nn), calg(5,nn), calg(6,nn), calg(7,nn), calg(8,nn), | |
684 | + calg(9,nn), calg(10,nn), calg(11,nn), calg(12,nn), | |
685 | + calg(13,nn), | |
686 | + calg(14,nn), calg(15,nn), calg(16,nn), calg(17,nn), | |
687 | + calg(18,nn), | |
688 | + calg(19,nn), calg(20,nn), calg(21,nn), calg(22,nn), | |
689 | + calg(23,nn), | |
690 | + calg(24,nn), calg(25,nn), calg(26,nn), calg(27,nn), | |
691 | + calg(28,nn), | |
692 | + calg(29,nn), calg(30,nn) | |
693 | 111 continue | |
694 | close(20) | |
695 | * | |
696 | OPEN(UNIT=21,FILE='disclin.all',STATUS='OLD',ERR=91) | |
697 | do 112 nn=1,30 | |
698 | read (21,*) rrr(nn), dalq(nn) | |
699 | 112 continue | |
700 | do 113 nn=1,30 | |
701 | read (21,*) rrrlg(nn), dalg(nn) | |
702 | 113 continue | |
703 | close(21) | |
704 | * | |
705 | goto 888 | |
706 | 90 PRINT*, 'input - output error' | |
707 | 91 PRINT*, 'input - output error #2' | |
708 | 888 continue | |
709 | ||
710 | end | |
711 | ||
712 | ======================================================================= | |
713 | ||
714 | Ported to class by C. Loizides - 17/02/2004 | |
715 | ||
716 | */ | |
717 | ||
718 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, Double_t rrrr,Double_t xxxx, | |
719 | Double_t &continuous,Double_t &discrete) const | |
720 | { | |
721 | // calculate Single Hard approx. | |
722 | // weights for given parton type, | |
723 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L | |
724 | ||
725 | // read-in data before first call | |
726 | if(!fTablesLoaded){ | |
7258586f | 727 | Error("CalcSingleHard","Tables are not loaded."); |
b6d061b7 | 728 | return -1; |
729 | } | |
20169737 | 730 | if(fMultSoft){ |
7258586f | 731 | Error("CalcSingleHard","Tables are not loaded for Single Hard Scattering."); |
b6d061b7 | 732 | return -1; |
733 | } | |
734 | ||
735 | Double_t rrin = rrrr; | |
736 | Double_t xxin = xxxx; | |
737 | ||
738 | Int_t nxlow = (Int_t)(xxin/0.038) + 1; | |
739 | Int_t nxhigh = nxlow + 1; | |
740 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.038; | |
741 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.038; | |
742 | ||
743 | //why this? | |
744 | if(rrin<=frrr[29]) rrin = 1.05*frrr[29]; // AD | |
745 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD | |
746 | ||
747 | Int_t nrlow=0,nrhigh=0; | |
748 | Double_t rrhigh=0,rrlow=0; | |
749 | for(Int_t nr=1; nr<=30; nr++) { | |
750 | if(rrin<frrr[nr-1]) { | |
751 | rrhigh = frrr[nr-1]; | |
752 | } else { | |
753 | rrhigh = frrr[nr-1-1]; | |
754 | rrlow = frrr[nr-1]; | |
755 | nrlow = nr; | |
756 | nrhigh = nr-1; | |
757 | break; | |
758 | } | |
759 | } | |
760 | ||
761 | rrin = rrrr; // AD | |
762 | ||
763 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); | |
764 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); | |
765 | ||
766 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD | |
767 | ||
768 | Double_t clow=0,chigh=0; | |
769 | if(ipart==1) { | |
770 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; | |
771 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; | |
772 | } else { | |
773 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; | |
774 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; | |
775 | } | |
776 | ||
777 | continuous = rfraclow*clow + rfrachigh*chigh; | |
778 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", | |
779 | // rfraclow,clow,rfrachigh,chigh,continuous); | |
780 | ||
781 | if(ipart==1) { | |
782 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; | |
783 | } else { | |
784 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; | |
785 | } | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
790 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, | |
791 | Double_t w,Double_t qtransp,Double_t length, | |
792 | Double_t &continuous,Double_t &discrete) const | |
793 | { | |
7a76a12e | 794 | // Calculate Multiple Scattering approx. |
795 | // weights for given parton type, | |
796 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 | |
797 | ||
b6d061b7 | 798 | Double_t wc=CalcWC(qtransp,length); |
799 | Double_t rrrr=CalcR(wc,length); | |
800 | Double_t xxxx=w/wc; | |
801 | return CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
802 | } | |
803 | ||
804 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, | |
805 | Double_t w,Double_t mu,Double_t length, | |
806 | Double_t &continuous,Double_t &discrete) const | |
807 | { | |
7a76a12e | 808 | // calculate Single Hard approx. |
809 | // weights for given parton type, | |
810 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L | |
811 | ||
b6d061b7 | 812 | Double_t wcbar=CalcWCbar(mu,length); |
813 | Double_t rrrr=CalcR(wcbar,length); | |
814 | Double_t xxxx=w/wcbar; | |
815 | return CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
816 | } | |
817 | ||
818 | Double_t AliQuenchingWeights::CalcR(Double_t wc, Double_t l) const | |
819 | { | |
a42548b0 | 820 | //calculate r value and |
7a76a12e | 821 | //check if it is less then maximum |
822 | ||
a42548b0 | 823 | Double_t r = wc*l*fgkConvFmToInvGeV; |
824 | if(r >= fgkRMax) { | |
825 | Warning("CalcR","Value of r = %.2f; should be less than %.2f", r, fgkRMax); | |
cc885e36 | 826 | return fgkRMax-1; |
b6d061b7 | 827 | } |
a42548b0 | 828 | return r; |
b6d061b7 | 829 | } |
830 | ||
7258586f | 831 | Double_t AliQuenchingWeights::CalcRk(Double_t k, Double_t I0, Double_t I1) const |
832 | { | |
833 | //calculate R value and | |
834 | //check if it is less then maximum | |
835 | ||
a42548b0 | 836 | Double_t r = fgkRMax-1; |
7258586f | 837 | if(I0>0) |
a42548b0 | 838 | r = 2*I1*I1/I0*k; |
839 | if(r>=fgkRMax) { | |
840 | Warning("CalcRk","Value of r = %.2f; should be less than %.2f",r,fgkRMax); | |
cc885e36 | 841 | return fgkRMax-1; |
7258586f | 842 | } |
a42548b0 | 843 | return r; |
7258586f | 844 | } |
845 | ||
b6d061b7 | 846 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, Double_t length, Double_t e) const |
847 | { | |
848 | // return DeltaE for MS or SH scattering | |
849 | // for given parton type, length and energy | |
850 | // Dependant on ECM (energy constraint method) | |
851 | // e is used to determine where to set bins to zero. | |
852 | ||
853 | if(!fHistos){ | |
854 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); | |
855 | return -1000.; | |
856 | } | |
857 | if((ipart<1) || (ipart>2)) { | |
858 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
7258586f | 859 | return -1000.; |
b6d061b7 | 860 | } |
861 | ||
7258586f | 862 | Int_t l=GetIndex(length); |
b6d061b7 | 863 | if(l<=0) return 0.; |
b6d061b7 | 864 | |
865 | if(fECMethod==kReweight){ | |
facee35a | 866 | Double_t ret = 2.*e; |
867 | Int_t ws=0; | |
868 | while(ret>e){ | |
869 | ret=fHistos[ipart-1][l-1]->GetRandom(); | |
6bd26c4a | 870 | if(++ws==1e6){ |
871 | Warning("GetELossRandom", | |
872 | "Aborted reweighting; maximum loss assigned after 1e6 trials."); | |
facee35a | 873 | return e; |
874 | } | |
b6d061b7 | 875 | } |
b6d061b7 | 876 | return ret; |
877 | } | |
facee35a | 878 | //kDefault |
879 | Double_t ret=fHistos[ipart-1][l-1]->GetRandom(); | |
880 | if(ret>e) return e; | |
881 | return ret; | |
b6d061b7 | 882 | } |
883 | ||
884 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, Double_t length, Double_t e) const | |
885 | { | |
886 | //return quenched parton energy | |
887 | //for given parton type, length and energy | |
888 | ||
889 | Double_t loss=GetELossRandom(ipart,length,e); | |
890 | return e-loss; | |
891 | } | |
892 | ||
e99e3ed5 | 893 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, TH1F *hell, Double_t e) const |
b6d061b7 | 894 | { |
7a76a12e | 895 | // return DeltaE for MS or SH scattering |
896 | // for given parton type, length distribution and energy | |
897 | // Dependant on ECM (energy constraint method) | |
898 | // e is used to determine where to set bins to zero. | |
899 | ||
b6d061b7 | 900 | if(!hell){ |
901 | Warning("GetELossRandom","Pointer to length distribution is NULL."); | |
902 | return 0.; | |
903 | } | |
904 | Double_t ell=hell->GetRandom(); | |
905 | return GetELossRandom(ipart,ell,e); | |
906 | } | |
907 | ||
908 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, TH1F *hell, Double_t e) const | |
909 | { | |
910 | //return quenched parton energy | |
911 | //for given parton type, length distribution and energy | |
912 | ||
913 | Double_t loss=GetELossRandom(ipart,hell,e); | |
914 | return e-loss; | |
915 | } | |
916 | ||
7258586f | 917 | Double_t AliQuenchingWeights::GetELossRandomK(Int_t ipart, Double_t I0, Double_t I1, Double_t e) |
918 | { | |
919 | // return DeltaE for new dynamic version | |
920 | // for given parton type, I0 and I1 value and energy | |
921 | // Dependant on ECM (energy constraint method) | |
922 | // e is used to determine where to set bins to zero. | |
923 | ||
924 | // read-in data before first call | |
925 | if(!fTablesLoaded){ | |
926 | Fatal("GetELossRandomK","Tables are not loaded."); | |
927 | return -1000.; | |
928 | } | |
929 | if((ipart<1) || (ipart>2)) { | |
930 | Fatal("GetELossRandomK","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
931 | return -1000.; | |
932 | } | |
933 | ||
b90de01a | 934 | Double_t r=CalcRk(I0,I1); |
935 | if(r<0.){ | |
7258586f | 936 | Fatal("GetELossRandomK","R should not be negative"); |
937 | return -1000.; | |
938 | } | |
939 | Double_t wc=CalcWCk(I1); | |
cc885e36 | 940 | if(wc<=0.){ |
7258586f | 941 | Fatal("GetELossRandomK","wc should be greater than zero"); |
942 | return -1000.; | |
943 | } | |
b90de01a | 944 | if(SampleEnergyLoss(ipart,r)!=0){ |
7258586f | 945 | Fatal("GetELossRandomK","Could not sample energy loss"); |
946 | return -1000.; | |
947 | } | |
948 | ||
949 | if(fECMethod==kReweight){ | |
facee35a | 950 | Double_t ret = 2.*e; |
951 | Int_t ws=0; | |
952 | while(ret>e){ | |
953 | ret=fHisto->GetRandom(); | |
6bd26c4a | 954 | if(++ws==1e6){ |
facee35a | 955 | Warning("GetELossRandomK", |
6bd26c4a | 956 | "Aborted reweighting; maximum loss assigned after 1e6 trials."); |
facee35a | 957 | return e; |
958 | } | |
7258586f | 959 | } |
7258586f | 960 | return ret; |
961 | } | |
facee35a | 962 | |
963 | //kDefault | |
964 | Double_t ret=fHisto->GetRandom()*wc; | |
965 | if(ret>e) return e; | |
966 | return ret; | |
7258586f | 967 | } |
968 | ||
969 | Double_t AliQuenchingWeights::CalcQuenchedEnergyK(Int_t ipart, Double_t I0, Double_t I1, Double_t e) | |
970 | { | |
971 | //return quenched parton energy | |
972 | //for given parton type, I0 and I1 value and energy | |
973 | ||
974 | Double_t loss=GetELossRandomK(ipart,I0,I1,e); | |
975 | return e-loss; | |
976 | } | |
977 | ||
2552c51a | 978 | Double_t AliQuenchingWeights::GetELossRandomKFast(Int_t ipart, Double_t I0, Double_t I1, Double_t e) |
979 | { | |
980 | // return DeltaE for new dynamic version | |
981 | // for given parton type, I0 and I1 value and energy | |
982 | // Dependant on ECM (energy constraint method) | |
983 | // e is used to determine where to set bins to zero. | |
984 | // method is optimized and should only be used if | |
985 | // all parameters are well within the bounds. | |
986 | // read-in data tables before first call | |
987 | ||
b90de01a | 988 | Double_t r=CalcRk(I0,I1); |
989 | if(r<=0.){ | |
2552c51a | 990 | return 0.; |
991 | } | |
992 | ||
993 | Double_t wc=CalcWCk(I1); | |
cc885e36 | 994 | if(wc<=0.){ |
2552c51a | 995 | return 0.; |
996 | } | |
997 | ||
b90de01a | 998 | return GetELossRandomKFastR(ipart,r,wc,e); |
cc885e36 | 999 | } |
1000 | ||
b90de01a | 1001 | Double_t AliQuenchingWeights::GetELossRandomKFastR(Int_t ipart, Double_t r, Double_t wc, Double_t e) |
cc885e36 | 1002 | { |
1003 | // return DeltaE for new dynamic version | |
1004 | // for given parton type, R and wc value and energy | |
1005 | // Dependant on ECM (energy constraint method) | |
1006 | // e is used to determine where to set bins to zero. | |
1007 | // method is optimized and should only be used if | |
1008 | // all parameters are well within the bounds. | |
1009 | // read-in data tables before first call | |
1010 | ||
b90de01a | 1011 | if(r>=fgkRMax) { |
1012 | r=fgkRMax-1; | |
cc885e36 | 1013 | } |
b677de56 | 1014 | |
2552c51a | 1015 | Double_t discrete=0.; |
cc885e36 | 1016 | Double_t continuous=0.; |
2552c51a | 1017 | Int_t bin=1; |
1018 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1019 | if(fMultSoft) | |
b90de01a | 1020 | CalcMult(ipart,r,xxxx,continuous,discrete); |
2552c51a | 1021 | else |
b90de01a | 1022 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
2552c51a | 1023 | |
b677de56 | 1024 | if(discrete>=1.0) { |
cc885e36 | 1025 | return 0.; //no energy loss |
2552c51a | 1026 | } |
1027 | ||
2552c51a | 1028 | fHisto->SetBinContent(bin,continuous); |
b677de56 | 1029 | Int_t kbinmax=fHisto->FindBin(e/wc); |
1030 | if(kbinmax>=fgkBins) kbinmax=fgkBins-1; | |
cc885e36 | 1031 | if(kbinmax==1) return e; //maximum energy loss |
1032 | ||
8ab8044e | 1033 | if(fMultSoft) { |
599b2e92 | 1034 | for(bin=2; bin<=kbinmax; bin++) { |
8ab8044e | 1035 | xxxx = fHisto->GetBinCenter(bin); |
b90de01a | 1036 | CalcMult(ipart,r,xxxx,continuous,discrete); |
8ab8044e | 1037 | fHisto->SetBinContent(bin,continuous); |
1038 | } | |
1039 | } else { | |
599b2e92 | 1040 | for(bin=2; bin<=kbinmax; bin++) { |
8ab8044e | 1041 | xxxx = fHisto->GetBinCenter(bin); |
b90de01a | 1042 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
8ab8044e | 1043 | fHisto->SetBinContent(bin,continuous); |
1044 | } | |
1045 | } | |
2552c51a | 1046 | |
b677de56 | 1047 | if(fECMethod==kReweight){ |
8ab8044e | 1048 | fHisto->SetBinContent(kbinmax+1,0); |
b677de56 | 1049 | fHisto->Fill(0.,discrete*fgkBins/fgkMaxBin); |
1050 | } else if (fECMethod==kReweightCont) { | |
1051 | fHisto->SetBinContent(kbinmax+1,0); | |
1052 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1053 | fHisto->Scale(1./kdelta*(1-discrete)); | |
1054 | fHisto->Fill(0.,discrete); | |
1055 | } else { | |
1056 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1057 | Double_t val=discrete*fgkBins/fgkMaxBin; | |
1058 | fHisto->Fill(0.,val); | |
8ab8044e | 1059 | fHisto->SetBinContent(kbinmax+1,(1-discrete)*fgkBins/fgkMaxBin-kdelta); |
b677de56 | 1060 | } |
599b2e92 | 1061 | for(bin=kbinmax+2; bin<=fgkBins; bin++) { |
8ab8044e | 1062 | fHisto->SetBinContent(bin,0); |
1063 | } | |
b677de56 | 1064 | //cout << kbinmax << " " << discrete << " " << fHisto->Integral() << endl; |
2552c51a | 1065 | Double_t ret=fHisto->GetRandom()*wc; |
1066 | if(ret>e) return e; | |
1067 | return ret; | |
1068 | } | |
1069 | ||
1070 | Double_t AliQuenchingWeights::CalcQuenchedEnergyKFast(Int_t ipart, Double_t I0, Double_t I1, Double_t e) | |
1071 | { | |
1072 | //return quenched parton energy (fast method) | |
1073 | //for given parton type, I0 and I1 value and energy | |
1074 | ||
1075 | Double_t loss=GetELossRandomKFast(ipart,I0,I1,e); | |
1076 | return e-loss; | |
1077 | } | |
1078 | ||
b677de56 | 1079 | Double_t AliQuenchingWeights::GetDiscreteWeight(Int_t ipart, Double_t I0, Double_t I1) |
1080 | { | |
1081 | // return discrete weight | |
1082 | ||
b90de01a | 1083 | Double_t r=CalcRk(I0,I1); |
1084 | if(r<=0.){ | |
b677de56 | 1085 | return 1.; |
1086 | } | |
b90de01a | 1087 | return GetDiscreteWeightR(ipart,r); |
b677de56 | 1088 | } |
1089 | ||
b90de01a | 1090 | Double_t AliQuenchingWeights::GetDiscreteWeightR(Int_t ipart, Double_t r) |
b677de56 | 1091 | { |
1092 | // return discrete weight | |
1093 | ||
b90de01a | 1094 | if(r>=fgkRMax) { |
1095 | r=fgkRMax-1; | |
b677de56 | 1096 | } |
1097 | ||
1098 | Double_t discrete=0.; | |
1099 | Double_t continuous=0.; | |
1100 | Int_t bin=1; | |
1101 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1102 | if(fMultSoft) | |
b90de01a | 1103 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1104 | else |
b90de01a | 1105 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1106 | return discrete; |
1107 | } | |
1108 | ||
b90de01a | 1109 | void AliQuenchingWeights::GetZeroLossProb(Double_t &p,Double_t &prw,Double_t &prwcont, |
b677de56 | 1110 | Int_t ipart,Double_t I0,Double_t I1,Double_t e) |
1111 | { | |
b90de01a | 1112 | //calculate the probabilty that there is no energy |
1113 | //loss for different ways of energy constraint | |
1114 | p=1.;prw=1.;prwcont=1.; | |
1115 | Double_t r=CalcRk(I0,I1); | |
1116 | if(r<=0.){ | |
b677de56 | 1117 | return; |
1118 | } | |
1119 | Double_t wc=CalcWCk(I1); | |
1120 | if(wc<=0.){ | |
1121 | return; | |
1122 | } | |
b90de01a | 1123 | GetZeroLossProbR(p,prw,prwcont,ipart,r,wc,e); |
b677de56 | 1124 | } |
1125 | ||
b90de01a | 1126 | void AliQuenchingWeights::GetZeroLossProbR(Double_t &p,Double_t &prw,Double_t &prwcont, |
1127 | Int_t ipart, Double_t r,Double_t wc,Double_t e) | |
b677de56 | 1128 | { |
b90de01a | 1129 | //calculate the probabilty that there is no energy |
1130 | //loss for different ways of energy constraint | |
1131 | if(r>=fgkRMax) { | |
1132 | r=fgkRMax-1; | |
b677de56 | 1133 | } |
1134 | ||
1135 | Double_t discrete=0.; | |
1136 | Double_t continuous=0.; | |
1137 | ||
1138 | Int_t kbinmax=fHisto->FindBin(e/wc); | |
1139 | if(kbinmax>=fgkBins) kbinmax=fgkBins-1; | |
1140 | if(fMultSoft) { | |
1141 | for(Int_t bin=1; bin<=kbinmax; bin++) { | |
1142 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
b90de01a | 1143 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1144 | fHisto->SetBinContent(bin,continuous); |
1145 | } | |
1146 | } else { | |
1147 | for(Int_t bin=1; bin<=kbinmax; bin++) { | |
1148 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
b90de01a | 1149 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1150 | fHisto->SetBinContent(bin,continuous); |
1151 | } | |
1152 | } | |
1153 | ||
1154 | //non-reweighted P(Delta E = 0) | |
1155 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1156 | Double_t val=discrete*fgkBins/fgkMaxBin; | |
1157 | fHisto->Fill(0.,val); | |
1158 | fHisto->SetBinContent(kbinmax+1,(1-discrete)*fgkBins/fgkMaxBin-kdelta); | |
1159 | Double_t hint=fHisto->Integral(1,kbinmax+1); | |
1160 | p=fHisto->GetBinContent(1)/hint; | |
1161 | ||
1162 | // reweighted | |
1163 | hint=fHisto->Integral(1,kbinmax); | |
1164 | prw=fHisto->GetBinContent(1)/hint; | |
1165 | ||
1166 | Double_t xxxx = fHisto->GetBinCenter(1); | |
b90de01a | 1167 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1168 | fHisto->SetBinContent(1,continuous); |
1169 | hint=fHisto->Integral(1,kbinmax); | |
1170 | fHisto->Scale(1./hint*(1-discrete)); | |
1171 | fHisto->Fill(0.,discrete); | |
b90de01a | 1172 | prwcont=fHisto->GetBinContent(1); |
b677de56 | 1173 | } |
1174 | ||
b6d061b7 | 1175 | Int_t AliQuenchingWeights::SampleEnergyLoss() |
1176 | { | |
1177 | // Has to be called to fill the histograms | |
1178 | // | |
1179 | // For stored values fQTransport loop over | |
1180 | // particle type and length = 1 to fMaxLength (fm) | |
1181 | // to fill energy loss histos | |
1182 | // | |
1183 | // Take histogram of continuous weights | |
1184 | // Take discrete_weight | |
1185 | // If discrete_weight > 1, put all channels to 0, except channel 1 | |
1186 | // Fill channel 1 with discrete_weight/(1-discrete_weight)*integral | |
1187 | ||
1188 | // read-in data before first call | |
1189 | if(!fTablesLoaded){ | |
7258586f | 1190 | Error("SampleEnergyLoss","Tables are not loaded."); |
b6d061b7 | 1191 | return -1; |
1192 | } | |
1193 | ||
1194 | if(fMultSoft) { | |
1195 | Int_t lmax=CalcLengthMax(fQTransport); | |
1196 | if(fLengthMax>lmax){ | |
7a76a12e | 1197 | Info("SampleEnergyLoss","Maximum length changed from %d to %d;\nin order to have R < %.f",fLengthMax,lmax,fgkRMax); |
b6d061b7 | 1198 | fLengthMax=lmax; |
1199 | } | |
1200 | } else { | |
1201 | Warning("SampleEnergyLoss","Maximum length not checked,\nbecause SingeHard is not yet tested."); | |
1202 | } | |
1203 | ||
1204 | Reset(); | |
1205 | fHistos=new TH1F**[2]; | |
9d851d20 | 1206 | fHistos[0]=new TH1F*[4*fLengthMax]; |
1207 | fHistos[1]=new TH1F*[4*fLengthMax]; | |
b6d061b7 | 1208 | fLengthMaxOld=fLengthMax; //remember old value in case |
1209 | //user wants to reset | |
1210 | ||
1211 | Int_t medvalue=0; | |
1212 | Char_t meddesc[100]; | |
1213 | if(fMultSoft) { | |
1214 | medvalue=(Int_t)(fQTransport*1000.); | |
1215 | sprintf(meddesc,"MS"); | |
1216 | } else { | |
1217 | medvalue=(Int_t)(fMu*1000.); | |
1218 | sprintf(meddesc,"SH"); | |
1219 | } | |
1220 | ||
1221 | for(Int_t ipart=1;ipart<=2;ipart++){ | |
9d851d20 | 1222 | for(Int_t l=1;l<=4*fLengthMax;l++){ |
b6d061b7 | 1223 | Char_t hname[100]; |
1224 | sprintf(hname,"hDisc-ContQW_%s_%d_%d_%d_%d",meddesc,fInstanceNumber,ipart,medvalue,l); | |
9d851d20 | 1225 | Double_t len=l/4.; |
7258586f | 1226 | Double_t wc = CalcWC(len); |
2552c51a | 1227 | fHistos[ipart-1][l-1] = new TH1F(hname,hname,fgkBins,0.,fgkMaxBin*wc); |
b6d061b7 | 1228 | fHistos[ipart-1][l-1]->SetXTitle("#Delta E [GeV]"); |
1229 | fHistos[ipart-1][l-1]->SetYTitle("p(#Delta E)"); | |
1230 | fHistos[ipart-1][l-1]->SetLineColor(4); | |
1231 | ||
7258586f | 1232 | Double_t rrrr = CalcR(wc,len); |
b6d061b7 | 1233 | Double_t discrete=0.; |
1234 | // loop on histogram channels | |
2552c51a | 1235 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1236 | Double_t xxxx = fHistos[ipart-1][l-1]->GetBinCenter(bin)/wc; |
1237 | Double_t continuous; | |
7258586f | 1238 | if(fMultSoft) |
1239 | CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1240 | else | |
1241 | CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
b6d061b7 | 1242 | fHistos[ipart-1][l-1]->SetBinContent(bin,continuous); |
1243 | } | |
1244 | // add discrete part to distribution | |
1245 | if(discrete>=1.) | |
2552c51a | 1246 | for(Int_t bin=2;bin<=fgkBins;bin++) |
b6d061b7 | 1247 | fHistos[ipart-1][l-1]->SetBinContent(bin,0.); |
1248 | else { | |
2552c51a | 1249 | Double_t val=discrete/(1.-discrete)*fHistos[ipart-1][l-1]->Integral(1,fgkBins); |
b6d061b7 | 1250 | fHistos[ipart-1][l-1]->Fill(0.,val); |
1251 | } | |
2552c51a | 1252 | Double_t hint=fHistos[ipart-1][l-1]->Integral(1,fgkBins); |
b6d061b7 | 1253 | fHistos[ipart-1][l-1]->Scale(1./hint); |
1254 | } | |
1255 | } | |
1256 | return 0; | |
1257 | } | |
1258 | ||
b90de01a | 1259 | Int_t AliQuenchingWeights::SampleEnergyLoss(Int_t ipart, Double_t r) |
7258586f | 1260 | { |
1261 | // Sample energy loss directly for one particle type | |
1262 | // choses R (safe it and keep it until next call of function) | |
1263 | ||
1264 | // read-in data before first call | |
1265 | if(!fTablesLoaded){ | |
1266 | Error("SampleEnergyLoss","Tables are not loaded."); | |
1267 | return -1; | |
1268 | } | |
1269 | ||
1270 | Double_t discrete=0.; | |
1271 | Double_t continuous=0;; | |
1272 | Int_t bin=1; | |
1273 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1274 | if(fMultSoft) | |
b90de01a | 1275 | CalcMult(ipart,r,xxxx,continuous,discrete); |
7258586f | 1276 | else |
b90de01a | 1277 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
7258586f | 1278 | |
1279 | if(discrete>=1.) { | |
1280 | fHisto->SetBinContent(1,1.); | |
599b2e92 | 1281 | for(bin=2;bin<=fgkBins;bin++) |
7258586f | 1282 | fHisto->SetBinContent(bin,0.); |
1283 | return 0; | |
1284 | } | |
1285 | ||
1286 | fHisto->SetBinContent(bin,continuous); | |
599b2e92 | 1287 | for(bin=2; bin<=fgkBins; bin++) { |
7258586f | 1288 | xxxx = fHisto->GetBinCenter(bin); |
1289 | if(fMultSoft) | |
b90de01a | 1290 | CalcMult(ipart,r,xxxx,continuous,discrete); |
7258586f | 1291 | else |
b90de01a | 1292 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
7258586f | 1293 | fHisto->SetBinContent(bin,continuous); |
1294 | } | |
8ab8044e | 1295 | |
2552c51a | 1296 | Double_t val=discrete/(1.-discrete)*fHisto->Integral(1,fgkBins); |
7258586f | 1297 | fHisto->Fill(0.,val); |
2552c51a | 1298 | Double_t hint=fHisto->Integral(1,fgkBins); |
7258586f | 1299 | if(hint!=0) |
1300 | fHisto->Scale(1./hint); | |
1301 | else { | |
2552c51a | 1302 | //cout << discrete << " " << hint << " " << continuous << endl; |
7258586f | 1303 | return -1; |
1304 | } | |
1305 | return 0; | |
1306 | } | |
1307 | ||
1308 | const TH1F* AliQuenchingWeights::GetHisto(Int_t ipart,Double_t length) const | |
b6d061b7 | 1309 | { |
7a76a12e | 1310 | //return quenching histograms |
1311 | //for ipart and length | |
1312 | ||
b6d061b7 | 1313 | if(!fHistos){ |
1314 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); | |
1315 | return 0; | |
1316 | } | |
1317 | if((ipart<1) || (ipart>2)) { | |
1318 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
1319 | return 0; | |
1320 | } | |
1321 | ||
7258586f | 1322 | Int_t l=GetIndex(length); |
b6d061b7 | 1323 | if(l<=0) return 0; |
b6d061b7 | 1324 | return fHistos[ipart-1][l-1]; |
1325 | } | |
1326 | ||
1327 | TH1F* AliQuenchingWeights::ComputeQWHisto(Int_t ipart,Double_t medval,Double_t length) const | |
1328 | { | |
1329 | // ipart = 1 for quark, 2 for gluon | |
1330 | // medval a) qtransp = transport coefficient (GeV^2/fm) | |
1331 | // b) mu = Debye mass (GeV) | |
1332 | // length = path length in medium (fm) | |
1333 | // Get from SW tables: | |
7258586f | 1334 | // - continuous weight, as a function of dE/wc |
b6d061b7 | 1335 | |
1336 | Double_t wc = 0; | |
1337 | Char_t meddesc[100]; | |
1338 | if(fMultSoft) { | |
1339 | wc=CalcWC(medval,length); | |
1340 | sprintf(meddesc,"MS"); | |
1341 | } else { | |
1342 | wc=CalcWCbar(medval,length); | |
1343 | sprintf(meddesc,"SH"); | |
1344 | } | |
1345 | ||
1346 | Char_t hname[100]; | |
1347 | sprintf(hname,"hContQWHisto_%s_%d_%d_%d",meddesc,ipart, | |
1348 | (Int_t)(medval*1000.),(Int_t)length); | |
1349 | ||
2552c51a | 1350 | TH1F *hist = new TH1F("hist",hname,fgkBins,0.,fgkMaxBin*wc); |
b6d061b7 | 1351 | hist->SetXTitle("#Delta E [GeV]"); |
1352 | hist->SetYTitle("p(#Delta E)"); | |
1353 | hist->SetLineColor(4); | |
1354 | ||
1355 | Double_t rrrr = CalcR(wc,length); | |
7258586f | 1356 | //loop on histogram channels |
2552c51a | 1357 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1358 | Double_t xxxx = hist->GetBinCenter(bin)/wc; |
1359 | Double_t continuous,discrete; | |
1360 | Int_t ret=0; | |
1361 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1362 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1363 | if(ret!=0){ | |
1364 | delete hist; | |
1365 | return 0; | |
1366 | }; | |
1367 | hist->SetBinContent(bin,continuous); | |
1368 | } | |
1369 | return hist; | |
1370 | } | |
1371 | ||
1372 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t medval,Double_t length) const | |
1373 | { | |
1374 | // ipart = 1 for quark, 2 for gluon | |
1375 | // medval a) qtransp = transport coefficient (GeV^2/fm) | |
1376 | // b) mu = Debye mass (GeV) | |
1377 | // length = path length in medium (fm) | |
1378 | // Get from SW tables: | |
7258586f | 1379 | // - continuous weight, as a function of dE/wc |
b6d061b7 | 1380 | |
1381 | Double_t wc = 0; | |
1382 | Char_t meddesc[100]; | |
1383 | if(fMultSoft) { | |
1384 | wc=CalcWC(medval,length); | |
1385 | sprintf(meddesc,"MS"); | |
1386 | } else { | |
1387 | wc=CalcWCbar(medval,length); | |
1388 | sprintf(meddesc,"SH"); | |
1389 | } | |
1390 | ||
1391 | Char_t hname[100]; | |
1392 | sprintf(hname,"hContQWHistox_%s_%d_%d_%d",meddesc,ipart, | |
1393 | (Int_t)(medval*1000.),(Int_t)length); | |
1394 | ||
2552c51a | 1395 | TH1F *histx = new TH1F("histx",hname,fgkBins,0.,fgkMaxBin); |
b6d061b7 | 1396 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
1397 | if(fMultSoft) | |
1398 | histx->SetYTitle("p(#Delta E/#omega_{c})"); | |
1399 | else | |
1400 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); | |
1401 | histx->SetLineColor(4); | |
1402 | ||
1403 | Double_t rrrr = CalcR(wc,length); | |
7258586f | 1404 | //loop on histogram channels |
2552c51a | 1405 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1406 | Double_t xxxx = histx->GetBinCenter(bin); |
1407 | Double_t continuous,discrete; | |
1408 | Int_t ret=0; | |
1409 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1410 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1411 | if(ret!=0){ | |
1412 | delete histx; | |
1413 | return 0; | |
1414 | }; | |
1415 | histx->SetBinContent(bin,continuous); | |
1416 | } | |
1417 | return histx; | |
1418 | } | |
1419 | ||
b90de01a | 1420 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t r) const |
7258586f | 1421 | { |
1422 | // compute P(E) distribution for | |
1423 | // given ipart = 1 for quark, 2 for gluon | |
1424 | // and R | |
1425 | ||
1426 | Char_t meddesc[100]; | |
1427 | if(fMultSoft) { | |
1428 | sprintf(meddesc,"MS"); | |
1429 | } else { | |
1430 | sprintf(meddesc,"SH"); | |
1431 | } | |
1432 | ||
1433 | Char_t hname[100]; | |
b90de01a | 1434 | sprintf(hname,"hQWHistox_%s_%d_%.2f",meddesc,ipart,r); |
2552c51a | 1435 | TH1F *histx = new TH1F("histx",hname,fgkBins,0.,fgkMaxBin); |
7258586f | 1436 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
1437 | if(fMultSoft) | |
1438 | histx->SetYTitle("p(#Delta E/#omega_{c})"); | |
1439 | else | |
1440 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); | |
1441 | histx->SetLineColor(4); | |
1442 | ||
b90de01a | 1443 | Double_t rrrr = r; |
7258586f | 1444 | Double_t continuous=0.,discrete=0.; |
1445 | //loop on histogram channels | |
2552c51a | 1446 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
7258586f | 1447 | Double_t xxxx = histx->GetBinCenter(bin); |
1448 | Int_t ret=0; | |
1449 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1450 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1451 | if(ret!=0){ | |
1452 | delete histx; | |
1453 | return 0; | |
1454 | }; | |
1455 | histx->SetBinContent(bin,continuous); | |
1456 | } | |
1457 | ||
1458 | //add discrete part to distribution | |
1459 | if(discrete>=1.) | |
2552c51a | 1460 | for(Int_t bin=2;bin<=fgkBins;bin++) |
7258586f | 1461 | histx->SetBinContent(bin,0.); |
1462 | else { | |
2552c51a | 1463 | Double_t val=discrete/(1.-discrete)*histx->Integral(1,fgkBins); |
7258586f | 1464 | histx->Fill(0.,val); |
1465 | } | |
2552c51a | 1466 | Double_t hint=histx->Integral(1,fgkBins); |
7258586f | 1467 | if(hint!=0) histx->Scale(1./hint); |
1468 | ||
1469 | return histx; | |
1470 | } | |
1471 | ||
e99e3ed5 | 1472 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,Double_t l,Double_t e) const |
b6d061b7 | 1473 | { |
7258586f | 1474 | // compute energy loss histogram for |
1475 | // parton type, medium value, length and energy | |
7a76a12e | 1476 | |
b6d061b7 | 1477 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
1478 | if(fMultSoft){ | |
1479 | dummy->SetQTransport(medval); | |
1480 | dummy->InitMult(); | |
1481 | } else { | |
1482 | dummy->SetMu(medval); | |
1483 | dummy->InitSingleHard(); | |
1484 | } | |
1485 | dummy->SampleEnergyLoss(); | |
1486 | ||
1487 | Char_t name[100]; | |
1488 | Char_t hname[100]; | |
1489 | if(ipart==1){ | |
1490 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); | |
1491 | sprintf(hname,"hLossQuarks"); | |
1492 | } else { | |
1493 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); | |
1494 | sprintf(hname,"hLossGluons"); | |
1495 | } | |
1496 | ||
1497 | TH1F *h = new TH1F(hname,name,250,0,250); | |
1498 | for(Int_t i=0;i<100000;i++){ | |
1499 | //if(i % 1000 == 0) cout << "." << flush; | |
1500 | Double_t loss=dummy->GetELossRandom(ipart,l,e); | |
1501 | h->Fill(loss); | |
1502 | } | |
b6d061b7 | 1503 | h->SetStats(kTRUE); |
b6d061b7 | 1504 | delete dummy; |
1505 | return h; | |
1506 | } | |
1507 | ||
e99e3ed5 | 1508 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,TH1F *hEll,Double_t e) const |
b6d061b7 | 1509 | { |
7258586f | 1510 | // compute energy loss histogram for |
1511 | // parton type, medium value, | |
1512 | // length distribution and energy | |
7a76a12e | 1513 | |
b6d061b7 | 1514 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
1515 | if(fMultSoft){ | |
1516 | dummy->SetQTransport(medval); | |
1517 | dummy->InitMult(); | |
1518 | } else { | |
1519 | dummy->SetMu(medval); | |
1520 | dummy->InitSingleHard(); | |
1521 | } | |
1522 | dummy->SampleEnergyLoss(); | |
1523 | ||
1524 | Char_t name[100]; | |
1525 | Char_t hname[100]; | |
1526 | if(ipart==1){ | |
1527 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); | |
1528 | sprintf(hname,"hLossQuarks"); | |
1529 | } else { | |
1530 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); | |
1531 | sprintf(hname,"hLossGluons"); | |
1532 | } | |
1533 | ||
1534 | TH1F *h = new TH1F(hname,name,250,0,250); | |
1535 | for(Int_t i=0;i<100000;i++){ | |
1536 | //if(i % 1000 == 0) cout << "." << flush; | |
1537 | Double_t loss=dummy->GetELossRandom(ipart,hEll,e); | |
1538 | h->Fill(loss); | |
1539 | } | |
b6d061b7 | 1540 | h->SetStats(kTRUE); |
b6d061b7 | 1541 | delete dummy; |
1542 | return h; | |
1543 | } | |
1544 | ||
b90de01a | 1545 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t r) const |
7258586f | 1546 | { |
1547 | // compute energy loss histogram for | |
1548 | // parton type and given R | |
1549 | ||
b90de01a | 1550 | TH1F *dummy = ComputeQWHistoX(ipart,r); |
7258586f | 1551 | if(!dummy) return 0; |
1552 | ||
1553 | Char_t hname[100]; | |
b90de01a | 1554 | sprintf(hname,"hELossHistox_%d_%.2f",ipart,r); |
2552c51a | 1555 | TH1F *histx = new TH1F("histxr",hname,fgkBins,0.,fgkMaxBin); |
7258586f | 1556 | for(Int_t i=0;i<100000;i++){ |
1557 | //if(i % 1000 == 0) cout << "." << flush; | |
1558 | Double_t loss=dummy->GetRandom(); | |
1559 | histx->Fill(loss); | |
1560 | } | |
1561 | delete dummy; | |
1562 | return histx; | |
1563 | } | |
1564 | ||
1565 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t medval,Double_t l) const | |
1566 | { | |
1567 | // compute average energy loss for | |
1568 | // parton type, medium value, length and energy | |
1569 | ||
1570 | TH1F *dummy = ComputeELossHisto(ipart,medval,l); | |
1571 | if(!dummy) return 0; | |
1572 | Double_t ret=dummy->GetMean(); | |
1573 | delete dummy; | |
1574 | return ret; | |
1575 | } | |
1576 | ||
1577 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t medval,TH1F *hEll) const | |
1578 | { | |
1579 | // compute average energy loss for | |
1580 | // parton type, medium value, | |
1581 | // length distribution and energy | |
1582 | ||
1583 | TH1F *dummy = ComputeELossHisto(ipart,medval,hEll); | |
1584 | if(!dummy) return 0; | |
1585 | Double_t ret=dummy->GetMean(); | |
1586 | delete dummy; | |
1587 | return ret; | |
1588 | } | |
1589 | ||
b90de01a | 1590 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t r) const |
7258586f | 1591 | { |
1592 | // compute average energy loss over wc | |
1593 | // for parton type and given R | |
1594 | ||
b90de01a | 1595 | TH1F *dummy = ComputeELossHisto(ipart,r); |
7258586f | 1596 | if(!dummy) return 0; |
1597 | Double_t ret=dummy->GetMean(); | |
1598 | delete dummy; | |
1599 | return ret; | |
1600 | } | |
1601 | ||
9175f0df | 1602 | void AliQuenchingWeights::PlotDiscreteWeights(Double_t len,Double_t qm) const |
b6d061b7 | 1603 | { |
7258586f | 1604 | // plot discrete weights for given length |
7a76a12e | 1605 | |
b6d061b7 | 1606 | TCanvas *c; |
1607 | if(fMultSoft) | |
1608 | c = new TCanvas("cdiscms","Discrete Weight for Multiple Scattering",0,0,500,400); | |
1609 | else | |
1610 | c = new TCanvas("cdiscsh","Discrete Weight for Single Hard Scattering",0,0,500,400); | |
1611 | c->cd(); | |
1612 | ||
9175f0df | 1613 | TH2F *hframe = new TH2F("hdisc","",2,0,qm+.1,2,0,1.25); |
b6d061b7 | 1614 | hframe->SetStats(0); |
1615 | if(fMultSoft) | |
1616 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1617 | else | |
1618 | hframe->SetXTitle("#mu [GeV]"); | |
9175f0df | 1619 | //hframe->SetYTitle("Probability #Delta E = 0 , p_{0}"); |
1620 | hframe->SetYTitle("p_{0} (discrete weight)"); | |
b6d061b7 | 1621 | hframe->Draw(); |
1622 | ||
9175f0df | 1623 | Int_t points=(Int_t)qm*4; |
1624 | TGraph *gq=new TGraph(points); | |
b6d061b7 | 1625 | Int_t i=0; |
1626 | if(fMultSoft) { | |
9175f0df | 1627 | for(Double_t q=0.05;q<=qm+.05;q+=0.25){ |
b6d061b7 | 1628 | Double_t disc,cont; |
7258586f | 1629 | CalcMult(1,1.0,q,len,cont,disc); |
b6d061b7 | 1630 | gq->SetPoint(i,q,disc);i++; |
1631 | } | |
1632 | } else { | |
9175f0df | 1633 | for(Double_t m=0.05;m<=qm+.05;m+=0.25){ |
b6d061b7 | 1634 | Double_t disc,cont; |
7258586f | 1635 | CalcSingleHard(1,1.0,m,len,cont, disc); |
b6d061b7 | 1636 | gq->SetPoint(i,m,disc);i++; |
1637 | } | |
1638 | } | |
1639 | gq->SetMarkerStyle(20); | |
9175f0df | 1640 | gq->SetMarkerColor(1); |
1641 | gq->SetLineStyle(1); | |
1642 | gq->SetLineColor(1); | |
1643 | gq->Draw("l"); | |
b6d061b7 | 1644 | |
9175f0df | 1645 | TGraph *gg=new TGraph(points); |
b6d061b7 | 1646 | i=0; |
1647 | if(fMultSoft){ | |
9175f0df | 1648 | for(Double_t q=0.05;q<=qm+.05;q+=0.25){ |
b6d061b7 | 1649 | Double_t disc,cont; |
7258586f | 1650 | CalcMult(2,1.0,q,len,cont,disc); |
b6d061b7 | 1651 | gg->SetPoint(i,q,disc);i++; |
1652 | } | |
1653 | } else { | |
9175f0df | 1654 | for(Double_t m=0.05;m<=qm+.05;m+=0.25){ |
b6d061b7 | 1655 | Double_t disc,cont; |
7258586f | 1656 | CalcSingleHard(2,1.0,m,len,cont,disc); |
b6d061b7 | 1657 | gg->SetPoint(i,m,disc);i++; |
1658 | } | |
1659 | } | |
1660 | gg->SetMarkerStyle(24); | |
9175f0df | 1661 | gg->SetMarkerColor(2); |
1662 | gg->SetLineStyle(2); | |
1663 | gg->SetLineColor(2); | |
1664 | gg->Draw("l"); | |
b6d061b7 | 1665 | |
1666 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1667 | l1a->SetFillStyle(0); | |
1668 | l1a->SetBorderSize(0); | |
1669 | Char_t label[100]; | |
7258586f | 1670 | sprintf(label,"L = %.1f fm",len); |
b6d061b7 | 1671 | l1a->AddEntry(gq,label,""); |
9175f0df | 1672 | l1a->AddEntry(gq,"quark projectile","l"); |
1673 | l1a->AddEntry(gg,"gluon projectile","l"); | |
b6d061b7 | 1674 | l1a->Draw(); |
1675 | ||
1676 | c->Update(); | |
1677 | } | |
1678 | ||
7258586f | 1679 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Double_t ell) const |
b6d061b7 | 1680 | { |
7258586f | 1681 | // plot continous weights for |
1682 | // given parton type and length | |
7a76a12e | 1683 | |
b6d061b7 | 1684 | Float_t medvals[3]; |
1685 | Char_t title[1024]; | |
1686 | Char_t name[1024]; | |
1687 | if(fMultSoft) { | |
1688 | if(itype==1) | |
1689 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); | |
1690 | else if(itype==2) | |
1691 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); | |
1692 | else return; | |
1693 | medvals[0]=4;medvals[1]=1;medvals[2]=0.5; | |
1694 | sprintf(name,"ccont-ms-%d",itype); | |
1695 | } else { | |
1696 | if(itype==1) | |
1697 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); | |
1698 | else if(itype==2) | |
1699 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); | |
1700 | else return; | |
1701 | medvals[0]=2;medvals[1]=1;medvals[2]=0.5; | |
1702 | sprintf(name,"ccont-ms-%d",itype); | |
1703 | } | |
1704 | ||
1705 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1706 | c->cd(); | |
1707 | TH1F *h1=ComputeQWHisto(itype,medvals[0],ell); | |
1708 | h1->SetName("h1"); | |
1709 | h1->SetTitle(title); | |
1710 | h1->SetStats(0); | |
1711 | h1->SetLineColor(1); | |
1712 | h1->DrawCopy(); | |
1713 | TH1F *h2=ComputeQWHisto(itype,medvals[1],ell); | |
1714 | h2->SetName("h2"); | |
1715 | h2->SetLineColor(2); | |
1716 | h2->DrawCopy("SAME"); | |
1717 | TH1F *h3=ComputeQWHisto(itype,medvals[2],ell); | |
1718 | h3->SetName("h3"); | |
1719 | h3->SetLineColor(3); | |
1720 | h3->DrawCopy("SAME"); | |
1721 | ||
1722 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1723 | l1a->SetFillStyle(0); | |
1724 | l1a->SetBorderSize(0); | |
1725 | Char_t label[100]; | |
7258586f | 1726 | sprintf(label,"L = %.1f fm",ell); |
b6d061b7 | 1727 | l1a->AddEntry(h1,label,""); |
1728 | if(fMultSoft) { | |
1729 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[0]); | |
1730 | l1a->AddEntry(h1,label,"pl"); | |
1731 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[1]); | |
1732 | l1a->AddEntry(h2,label,"pl"); | |
1733 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[2]); | |
1734 | l1a->AddEntry(h3,label,"pl"); | |
1735 | } else { | |
1736 | sprintf(label,"#mu = %.1f GeV",medvals[0]); | |
1737 | l1a->AddEntry(h1,label,"pl"); | |
1738 | sprintf(label,"#mu = %.1f GeV",medvals[1]); | |
1739 | l1a->AddEntry(h2,label,"pl"); | |
1740 | sprintf(label,"#mu = %.1f GeV",medvals[2]); | |
1741 | l1a->AddEntry(h3,label,"pl"); | |
1742 | } | |
1743 | l1a->Draw(); | |
1744 | ||
1745 | c->Update(); | |
1746 | } | |
1747 | ||
7258586f | 1748 | void AliQuenchingWeights::PlotContWeightsVsL(Int_t itype,Double_t medval) const |
b6d061b7 | 1749 | { |
7258586f | 1750 | // plot continous weights for |
1751 | // given parton type and medium value | |
7a76a12e | 1752 | |
b6d061b7 | 1753 | Char_t title[1024]; |
1754 | Char_t name[1024]; | |
1755 | if(fMultSoft) { | |
1756 | if(itype==1) | |
1757 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); | |
1758 | else if(itype==2) | |
1759 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); | |
1760 | else return; | |
1761 | sprintf(name,"ccont2-ms-%d",itype); | |
1762 | } else { | |
1763 | if(itype==1) | |
1764 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); | |
1765 | else if(itype==2) | |
1766 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); | |
1767 | else return; | |
1768 | sprintf(name,"ccont2-sh-%d",itype); | |
1769 | } | |
1770 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1771 | c->cd(); | |
1772 | TH1F *h1=ComputeQWHisto(itype,medval,8); | |
1773 | h1->SetName("h1"); | |
1774 | h1->SetTitle(title); | |
1775 | h1->SetStats(0); | |
1776 | h1->SetLineColor(1); | |
1777 | h1->DrawCopy(); | |
1778 | TH1F *h2=ComputeQWHisto(itype,medval,5); | |
1779 | h2->SetName("h2"); | |
1780 | h2->SetLineColor(2); | |
1781 | h2->DrawCopy("SAME"); | |
1782 | TH1F *h3=ComputeQWHisto(itype,medval,2); | |
1783 | h3->SetName("h3"); | |
1784 | h3->SetLineColor(3); | |
1785 | h3->DrawCopy("SAME"); | |
1786 | ||
1787 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1788 | l1a->SetFillStyle(0); | |
1789 | l1a->SetBorderSize(0); | |
1790 | Char_t label[100]; | |
1791 | if(fMultSoft) | |
1792 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medval); | |
1793 | else | |
1794 | sprintf(label,"#mu = %.1f GeV",medval); | |
1795 | ||
1796 | l1a->AddEntry(h1,label,""); | |
1797 | l1a->AddEntry(h1,"L = 8 fm","pl"); | |
1798 | l1a->AddEntry(h2,"L = 5 fm","pl"); | |
1799 | l1a->AddEntry(h3,"L = 2 fm","pl"); | |
1800 | l1a->Draw(); | |
1801 | ||
1802 | c->Update(); | |
1803 | } | |
1804 | ||
9175f0df | 1805 | void AliQuenchingWeights::PlotAvgELoss(Double_t len,Double_t qm,Double_t e) const |
b6d061b7 | 1806 | { |
7258586f | 1807 | // plot average energy loss for given length |
1808 | // and parton energy | |
7a76a12e | 1809 | |
b6d061b7 | 1810 | if(!fTablesLoaded){ |
7258586f | 1811 | Error("PlotAvgELoss","Tables are not loaded."); |
b6d061b7 | 1812 | return; |
1813 | } | |
1814 | ||
1815 | Char_t title[1024]; | |
1816 | Char_t name[1024]; | |
1817 | if(fMultSoft){ | |
7258586f | 1818 | sprintf(title,"Average Energy Loss for Multiple Scattering"); |
b6d061b7 | 1819 | sprintf(name,"cavgelossms"); |
1820 | } else { | |
7258586f | 1821 | sprintf(title,"Average Energy Loss for Single Hard Scattering"); |
b6d061b7 | 1822 | sprintf(name,"cavgelosssh"); |
1823 | } | |
1824 | ||
1825 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1826 | c->cd(); | |
9175f0df | 1827 | TH2F *hframe = new TH2F("avgloss","",2,0,qm+.1,2,0,100); |
b6d061b7 | 1828 | hframe->SetStats(0); |
1829 | if(fMultSoft) | |
1830 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1831 | else | |
1832 | hframe->SetXTitle("#mu [GeV]"); | |
1833 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1834 | hframe->Draw(); | |
1835 | ||
1836 | TGraph *gq=new TGraph(20); | |
1837 | Int_t i=0; | |
9175f0df | 1838 | for(Double_t v=0.05;v<=qm+.05;v+=0.25){ |
b6d061b7 | 1839 | TH1F *dummy=ComputeELossHisto(1,v,len,e); |
1840 | Double_t avgloss=dummy->GetMean(); | |
1841 | gq->SetPoint(i,v,avgloss);i++; | |
1842 | delete dummy; | |
1843 | } | |
9175f0df | 1844 | gq->SetMarkerStyle(21); |
b6d061b7 | 1845 | gq->Draw("pl"); |
1846 | ||
9175f0df | 1847 | Int_t points=(Int_t)qm*4; |
1848 | TGraph *gg=new TGraph(points); | |
b6d061b7 | 1849 | i=0; |
9175f0df | 1850 | for(Double_t v=0.05;v<=qm+.05;v+=0.25){ |
b6d061b7 | 1851 | TH1F *dummy=ComputeELossHisto(2,v,len,e); |
1852 | Double_t avgloss=dummy->GetMean(); | |
1853 | gg->SetPoint(i,v,avgloss);i++; | |
1854 | delete dummy; | |
1855 | } | |
9175f0df | 1856 | gg->SetMarkerStyle(20); |
1857 | gg->SetMarkerColor(2); | |
b6d061b7 | 1858 | gg->Draw("pl"); |
1859 | ||
9175f0df | 1860 | TGraph *gratio=new TGraph(points); |
599b2e92 | 1861 | for(i=0;i<points;i++){ |
7258586f | 1862 | Double_t x,y,x2,y2; |
1863 | gg->GetPoint(i,x,y); | |
1864 | gq->GetPoint(i,x2,y2); | |
1865 | if(y2>0) | |
1866 | gratio->SetPoint(i,x,y/y2*10/2.25); | |
1867 | else gratio->SetPoint(i,x,0); | |
1868 | } | |
1869 | gratio->SetLineStyle(4); | |
1870 | gratio->Draw(); | |
9175f0df | 1871 | TLegend *l1a = new TLegend(0.15,0.60,0.50,0.90); |
b6d061b7 | 1872 | l1a->SetFillStyle(0); |
1873 | l1a->SetBorderSize(0); | |
1874 | Char_t label[100]; | |
7258586f | 1875 | sprintf(label,"L = %.1f fm",len); |
b6d061b7 | 1876 | l1a->AddEntry(gq,label,""); |
9175f0df | 1877 | l1a->AddEntry(gq,"quark projectile","pl"); |
1878 | l1a->AddEntry(gg,"gluon projectile","pl"); | |
7258586f | 1879 | l1a->AddEntry(gratio,"gluon/quark/2.25*10","pl"); |
b6d061b7 | 1880 | l1a->Draw(); |
1881 | ||
1882 | c->Update(); | |
1883 | } | |
1884 | ||
e99e3ed5 | 1885 | void AliQuenchingWeights::PlotAvgELoss(TH1F *hEll,Double_t e) const |
b6d061b7 | 1886 | { |
7258586f | 1887 | // plot average energy loss for given |
1888 | // length distribution and parton energy | |
7a76a12e | 1889 | |
b6d061b7 | 1890 | if(!fTablesLoaded){ |
7258586f | 1891 | Error("PlotAvgELossVs","Tables are not loaded."); |
b6d061b7 | 1892 | return; |
1893 | } | |
1894 | ||
1895 | Char_t title[1024]; | |
1896 | Char_t name[1024]; | |
1897 | if(fMultSoft){ | |
7258586f | 1898 | sprintf(title,"Average Energy Loss for Multiple Scattering"); |
b6d061b7 | 1899 | sprintf(name,"cavgelossms2"); |
1900 | } else { | |
7258586f | 1901 | sprintf(title,"Average Energy Loss for Single Hard Scattering"); |
b6d061b7 | 1902 | sprintf(name,"cavgelosssh2"); |
1903 | } | |
1904 | ||
1905 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1906 | c->cd(); | |
1907 | TH2F *hframe = new TH2F("havgloss",title,2,0,5.1,2,0,100); | |
1908 | hframe->SetStats(0); | |
1909 | if(fMultSoft) | |
1910 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1911 | else | |
1912 | hframe->SetXTitle("#mu [GeV]"); | |
1913 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1914 | hframe->Draw(); | |
1915 | ||
1916 | TGraph *gq=new TGraph(20); | |
1917 | Int_t i=0; | |
1918 | for(Double_t v=0.05;v<=5.05;v+=0.25){ | |
1919 | TH1F *dummy=ComputeELossHisto(1,v,hEll,e); | |
1920 | Double_t avgloss=dummy->GetMean(); | |
1921 | gq->SetPoint(i,v,avgloss);i++; | |
1922 | delete dummy; | |
1923 | } | |
1924 | gq->SetMarkerStyle(20); | |
1925 | gq->Draw("pl"); | |
1926 | ||
1927 | TGraph *gg=new TGraph(20); | |
1928 | i=0; | |
1929 | for(Double_t v=0.05;v<=5.05;v+=0.25){ | |
1930 | TH1F *dummy=ComputeELossHisto(2,v,hEll,e); | |
1931 | Double_t avgloss=dummy->GetMean(); | |
1932 | gg->SetPoint(i,v,avgloss);i++; | |
1933 | delete dummy; | |
1934 | } | |
1935 | gg->SetMarkerStyle(24); | |
1936 | gg->Draw("pl"); | |
1937 | ||
7258586f | 1938 | TGraph *gratio=new TGraph(20); |
7e7b00ac | 1939 | for(i=0;i<20;i++){ |
7258586f | 1940 | Double_t x,y,x2,y2; |
1941 | gg->GetPoint(i,x,y); | |
1942 | gq->GetPoint(i,x2,y2); | |
1943 | if(y2>0) | |
1944 | gratio->SetPoint(i,x,y/y2*10/2.25); | |
1945 | else gratio->SetPoint(i,x,0); | |
1946 | } | |
1947 | gratio->SetLineStyle(4); | |
9175f0df | 1948 | //gratio->Draw(); |
7258586f | 1949 | |
b6d061b7 | 1950 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
1951 | l1a->SetFillStyle(0); | |
1952 | l1a->SetBorderSize(0); | |
1953 | Char_t label[100]; | |
1954 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); | |
1955 | l1a->AddEntry(gq,label,""); | |
1956 | l1a->AddEntry(gq,"quark","pl"); | |
1957 | l1a->AddEntry(gg,"gluon","pl"); | |
9175f0df | 1958 | //l1a->AddEntry(gratio,"gluon/quark/2.25*10","pl"); |
b6d061b7 | 1959 | l1a->Draw(); |
1960 | ||
1961 | c->Update(); | |
1962 | } | |
1963 | ||
9d851d20 | 1964 | void AliQuenchingWeights::PlotAvgELossVsL(Double_t e) const |
b6d061b7 | 1965 | { |
7258586f | 1966 | // plot average energy loss versus ell |
7a76a12e | 1967 | |
b6d061b7 | 1968 | if(!fTablesLoaded){ |
7258586f | 1969 | Error("PlotAvgELossVsEll","Tables are not loaded."); |
1970 | return; | |
1971 | } | |
1972 | ||
1973 | Char_t title[1024]; | |
1974 | Char_t name[1024]; | |
1975 | Float_t medval; | |
1976 | if(fMultSoft){ | |
1977 | sprintf(title,"Average Energy Loss for Multiple Scattering"); | |
1978 | sprintf(name,"cavgelosslms"); | |
1979 | medval=fQTransport; | |
1980 | } else { | |
1981 | sprintf(title,"Average Energy Loss for Single Hard Scattering"); | |
1982 | sprintf(name,"cavgelosslsh"); | |
1983 | medval=fMu; | |
1984 | } | |
1985 | ||
1986 | TCanvas *c = new TCanvas(name,title,0,0,600,400); | |
1987 | c->cd(); | |
1988 | TH2F *hframe = new TH2F("avglossell",title,2,0,fLengthMax,2,0,250); | |
1989 | hframe->SetStats(0); | |
1990 | hframe->SetXTitle("length [fm]"); | |
1991 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1992 | hframe->Draw(); | |
1993 | ||
1994 | TGraph *gq=new TGraph((Int_t)fLengthMax*4); | |
1995 | Int_t i=0; | |
1996 | for(Double_t v=0.25;v<=fLengthMax;v+=0.25){ | |
1997 | TH1F *dummy=ComputeELossHisto(1,medval,v,e); | |
1998 | Double_t avgloss=dummy->GetMean(); | |
1999 | gq->SetPoint(i,v,avgloss);i++; | |
2000 | delete dummy; | |
2001 | } | |
2002 | gq->SetMarkerStyle(20); | |
2003 | gq->Draw("pl"); | |
2004 | ||
2005 | TGraph *gg=new TGraph((Int_t)fLengthMax*4); | |
2006 | i=0; | |
2007 | for(Double_t v=0.25;v<=fLengthMax;v+=0.25){ | |
2008 | TH1F *dummy=ComputeELossHisto(2,medval,v,e); | |
2009 | Double_t avgloss=dummy->GetMean(); | |
2010 | gg->SetPoint(i,v,avgloss);i++; | |
2011 | delete dummy; | |
2012 | } | |
2013 | gg->SetMarkerStyle(24); | |
2014 | gg->Draw("pl"); | |
2015 | ||
2016 | TGraph *gratio=new TGraph((Int_t)fLengthMax*4); | |
7e7b00ac | 2017 | for(i=0;i<=(Int_t)fLengthMax*4;i++){ |
7258586f | 2018 | Double_t x,y,x2,y2; |
2019 | gg->GetPoint(i,x,y); | |
2020 | gq->GetPoint(i,x2,y2); | |
2021 | if(y2>0) | |
2022 | gratio->SetPoint(i,x,y/y2*100/2.25); | |
2023 | else gratio->SetPoint(i,x,0); | |
2024 | } | |
2025 | gratio->SetLineStyle(1); | |
2026 | gratio->SetLineWidth(2); | |
2027 | gratio->Draw(); | |
2028 | TLegend *l1a = new TLegend(0.15,0.65,.60,0.85); | |
2029 | l1a->SetFillStyle(0); | |
2030 | l1a->SetBorderSize(0); | |
2031 | Char_t label[100]; | |
2032 | if(fMultSoft) | |
2033 | sprintf(label,"#hat{q} = %.2f GeV^{2}/fm",medval); | |
2034 | else | |
2035 | sprintf(label,"#mu = %.2f GeV",medval); | |
2036 | l1a->AddEntry(gq,label,""); | |
2037 | l1a->AddEntry(gq,"quark","pl"); | |
2038 | l1a->AddEntry(gg,"gluon","pl"); | |
2039 | l1a->AddEntry(gratio,"gluon/quark/2.25*100","pl"); | |
2040 | l1a->Draw(); | |
2041 | ||
2042 | TF1 *f=new TF1("f","100",0,fLengthMax); | |
2043 | f->SetLineStyle(4); | |
2044 | f->SetLineWidth(1); | |
2045 | f->Draw("same"); | |
2046 | c->Update(); | |
2047 | } | |
2048 | ||
2049 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,Double_t len) const | |
2050 | { | |
2051 | // plot relative energy loss for given | |
2052 | // length and parton energy versus pt | |
2053 | ||
2054 | if(!fTablesLoaded){ | |
2055 | Error("PlotAvgELossVsPt","Tables are not loaded."); | |
b6d061b7 | 2056 | return; |
2057 | } | |
2058 | ||
2059 | Char_t title[1024]; | |
2060 | Char_t name[1024]; | |
2061 | if(fMultSoft){ | |
7258586f | 2062 | sprintf(title,"Relative Energy Loss for Multiple Scattering"); |
b6d061b7 | 2063 | sprintf(name,"cavgelossvsptms"); |
2064 | } else { | |
7258586f | 2065 | sprintf(title,"Relative Energy Loss for Single Hard Scattering"); |
b6d061b7 | 2066 | sprintf(name,"cavgelossvsptsh"); |
2067 | } | |
2068 | ||
2069 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
2070 | c->cd(); | |
2071 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); | |
2072 | hframe->SetStats(0); | |
2073 | hframe->SetXTitle("p_{T} [GeV]"); | |
2074 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); | |
2075 | hframe->Draw(); | |
2076 | ||
2077 | TGraph *gq=new TGraph(40); | |
2078 | Int_t i=0; | |
2079 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2080 | TH1F *dummy=ComputeELossHisto(1,medval,len,pt); | |
2081 | Double_t avgloss=dummy->GetMean(); | |
2082 | gq->SetPoint(i,pt,avgloss/pt);i++; | |
2083 | delete dummy; | |
2084 | } | |
2085 | gq->SetMarkerStyle(20); | |
2086 | gq->Draw("pl"); | |
2087 | ||
2088 | TGraph *gg=new TGraph(40); | |
2089 | i=0; | |
2090 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2091 | TH1F *dummy=ComputeELossHisto(2,medval,len,pt); | |
2092 | Double_t avgloss=dummy->GetMean(); | |
2093 | gg->SetPoint(i,pt,avgloss/pt);i++; | |
2094 | delete dummy; | |
2095 | } | |
2096 | gg->SetMarkerStyle(24); | |
2097 | gg->Draw("pl"); | |
2098 | ||
2099 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
2100 | l1a->SetFillStyle(0); | |
2101 | l1a->SetBorderSize(0); | |
2102 | Char_t label[100]; | |
7258586f | 2103 | sprintf(label,"L = %.1f fm",len); |
b6d061b7 | 2104 | l1a->AddEntry(gq,label,""); |
2105 | l1a->AddEntry(gq,"quark","pl"); | |
2106 | l1a->AddEntry(gg,"gluon","pl"); | |
2107 | l1a->Draw(); | |
2108 | ||
2109 | c->Update(); | |
2110 | } | |
2111 | ||
2112 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,TH1F *hEll) const | |
2113 | { | |
7258586f | 2114 | // plot relative energy loss for given |
2115 | // length distribution and parton energy versus pt | |
7a76a12e | 2116 | |
b6d061b7 | 2117 | if(!fTablesLoaded){ |
7258586f | 2118 | Error("PlotAvgELossVsPt","Tables are not loaded."); |
b6d061b7 | 2119 | return; |
2120 | } | |
2121 | ||
2122 | Char_t title[1024]; | |
2123 | Char_t name[1024]; | |
2124 | if(fMultSoft){ | |
7258586f | 2125 | sprintf(title,"Relative Energy Loss for Multiple Scattering"); |
b6d061b7 | 2126 | sprintf(name,"cavgelossvsptms2"); |
2127 | } else { | |
7258586f | 2128 | sprintf(title,"Relative Energy Loss for Single Hard Scattering"); |
b6d061b7 | 2129 | sprintf(name,"cavgelossvsptsh2"); |
2130 | } | |
2131 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
2132 | c->cd(); | |
2133 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); | |
2134 | hframe->SetStats(0); | |
2135 | hframe->SetXTitle("p_{T} [GeV]"); | |
2136 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); | |
2137 | hframe->Draw(); | |
2138 | ||
2139 | TGraph *gq=new TGraph(40); | |
2140 | Int_t i=0; | |
2141 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2142 | TH1F *dummy=ComputeELossHisto(1,medval,hEll,pt); | |
2143 | Double_t avgloss=dummy->GetMean(); | |
2144 | gq->SetPoint(i,pt,avgloss/pt);i++; | |
2145 | delete dummy; | |
2146 | } | |
2147 | gq->SetMarkerStyle(20); | |
2148 | gq->Draw("pl"); | |
2149 | ||
2150 | TGraph *gg=new TGraph(40); | |
2151 | i=0; | |
2152 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2153 | TH1F *dummy=ComputeELossHisto(2,medval,hEll,pt); | |
2154 | Double_t avgloss=dummy->GetMean(); | |
2155 | gg->SetPoint(i,pt,avgloss/pt);i++; | |
2156 | delete dummy; | |
2157 | } | |
2158 | gg->SetMarkerStyle(24); | |
2159 | gg->Draw("pl"); | |
2160 | ||
2161 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
2162 | l1a->SetFillStyle(0); | |
2163 | l1a->SetBorderSize(0); | |
2164 | Char_t label[100]; | |
2165 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); | |
2166 | l1a->AddEntry(gq,label,""); | |
2167 | l1a->AddEntry(gq,"quark","pl"); | |
2168 | l1a->AddEntry(gg,"gluon","pl"); | |
2169 | l1a->Draw(); | |
2170 | ||
2171 | c->Update(); | |
2172 | } | |
2173 | ||
7258586f | 2174 | Int_t AliQuenchingWeights::GetIndex(Double_t len) const |
2175 | { | |
b90de01a | 2176 | //get the index according to length |
7258586f | 2177 | if(len>fLengthMax) len=fLengthMax; |
2178 | ||
9d851d20 | 2179 | Int_t l=Int_t(len/0.25); |
cc885e36 | 2180 | if((len-l*0.25)>0.125) l++; |
7258586f | 2181 | return l; |
2182 | } | |
ea16e52f | 2183 |