]>
Commit | Line | Data |
---|---|---|
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> | |
9453afb9 | 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 |
620294e8 | 78 | |
b6d061b7 | 79 | } |
80 | ||
81 | AliQuenchingWeights::AliQuenchingWeights(const AliQuenchingWeights& a) | |
e6e76983 | 82 | : TObject(), |
83 | fInstanceNumber(fgCounter++), | |
84 | fMultSoft(kTRUE), | |
85 | fECMethod(kDefault), | |
86 | fQTransport(1.), | |
87 | fMu(1.), | |
88 | fK(4.e5), | |
89 | fLengthMax(20), | |
90 | fLengthMaxOld(0), | |
91 | fHistos(0), | |
92 | fHisto(0), | |
93 | fTablesLoaded(kFALSE) | |
b6d061b7 | 94 | { |
7258586f | 95 | // copy constructor |
7a76a12e | 96 | |
b6d061b7 | 97 | fTablesLoaded=kFALSE; |
98 | fHistos=0; | |
99 | fLengthMaxOld=0; | |
100 | fMultSoft=a.GetMultSoft();; | |
101 | fMu=a.GetMu(); | |
7258586f | 102 | fK=a.GetK(); |
b6d061b7 | 103 | fQTransport=a.GetQTransport(); |
104 | fECMethod=(kECMethod)a.GetECMethod(); | |
105 | fLengthMax=a.GetLengthMax(); | |
7a76a12e | 106 | fInstanceNumber=fgCounter++; |
cabdfc37 | 107 | Char_t name[100]; |
7d62b2e2 | 108 | snprintf(name,100, "hhistoqw_%d",fInstanceNumber); |
cabdfc37 | 109 | fHisto = new TH1F(name,"",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 | ||
620294e8 | 123 | void AliQuenchingWeights::Init() |
124 | { | |
125 | // Initialization | |
126 | if (fHisto) return; | |
127 | fHisto = new TH1F(Form("hhistoqw_%d",fInstanceNumber),"",fgkBins,0.,fgkMaxBin); | |
128 | for(Int_t bin=1;bin<=fgkBins;bin++) | |
129 | fHisto->SetBinContent(bin,0.); | |
130 | } | |
131 | ||
b6d061b7 | 132 | void AliQuenchingWeights::Reset() |
133 | { | |
7a76a12e | 134 | //reset tables if there were used |
135 | ||
b6d061b7 | 136 | if(!fHistos) return; |
9d851d20 | 137 | for(Int_t l=0;l<4*fLengthMaxOld;l++){ |
b6d061b7 | 138 | delete fHistos[0][l]; |
139 | delete fHistos[1][l]; | |
140 | } | |
141 | delete[] fHistos; | |
142 | fHistos=0; | |
143 | fLengthMaxOld=0; | |
144 | } | |
145 | ||
146 | void AliQuenchingWeights::SetECMethod(kECMethod type) | |
147 | { | |
7a76a12e | 148 | //set energy constraint method |
149 | ||
b6d061b7 | 150 | fECMethod=type; |
151 | if(fECMethod==kDefault) | |
152 | Info("SetECMethod","Energy Constraint Method set to DEFAULT:\nIf (sampled energy loss > parton energy) then sampled energy loss = parton energy."); | |
b677de56 | 153 | else if(fECMethod==kReweight) |
b6d061b7 | 154 | Info("SetECMethod","Energy Constraint Method set to REWEIGHT:\nRequire sampled energy loss <= parton energy."); |
b677de56 | 155 | else Info("SetECMethod","Energy Constraint Method set to REWEIGHTCONT:\nRequire sampled energy loss <= parton energy (only implemented for FAST method."); |
b6d061b7 | 156 | } |
157 | ||
158 | Int_t AliQuenchingWeights::InitMult(const Char_t *contall,const Char_t *discall) | |
159 | { | |
160 | // read in tables for multiple scattering approximation | |
161 | // path to continuum and to discrete part | |
162 | ||
163 | fTablesLoaded = kFALSE; | |
164 | fMultSoft=kTRUE; | |
165 | ||
cabdfc37 | 166 | Char_t fname[1024]; |
7d62b2e2 | 167 | snprintf(fname,1024, "%s",gSystem->ExpandPathName(contall)); |
bb545331 | 168 | //PH ifstream fincont(fname); |
cabdfc37 | 169 | fstream fincont(fname,ios::in); |
bb545331 | 170 | #if defined(__HP_aCC) || defined(__DECCXX) |
171 | if(!fincont.rdbuf()->is_open()) return -1; | |
172 | #else | |
b6d061b7 | 173 | if(!fincont.is_open()) return -1; |
bb545331 | 174 | #endif |
b6d061b7 | 175 | |
176 | Int_t nn=0; //quarks | |
177 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> | |
178 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> | |
7a76a12e | 179 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>>fcaq[13][nn]>> |
180 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>>fcaq[18][nn]>> | |
181 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>>fcaq[23][nn]>> | |
182 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>>fcaq[28][nn]>> | |
183 | fcaq[29][nn]>>fcaq[30][nn]>>fcaq[31][nn]>>fcaq[32][nn]>>fcaq[33][nn]) | |
b6d061b7 | 184 | { |
185 | nn++; | |
186 | if(nn==261) break; | |
187 | } | |
188 | ||
189 | nn=0; //gluons | |
190 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> | |
191 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> | |
7a76a12e | 192 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>>fcag[13][nn]>> |
193 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>>fcag[18][nn]>> | |
194 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>>fcag[23][nn]>> | |
195 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>>fcag[28][nn]>> | |
196 | fcag[29][nn]>>fcag[30][nn]>>fcag[31][nn]>>fcag[32][nn]>>fcag[33][nn]) | |
197 | { | |
b6d061b7 | 198 | nn++; |
199 | if(nn==261) break; | |
200 | } | |
201 | fincont.close(); | |
202 | ||
7d62b2e2 | 203 | snprintf(fname,1024, "%s",gSystem->ExpandPathName(discall)); |
bb545331 | 204 | //PH ifstream findisc(fname); |
cabdfc37 | 205 | fstream findisc(fname,ios::in); |
bb545331 | 206 | #if defined(__HP_aCC) || defined(__DECCXX) |
207 | if(!findisc.rdbuf()->is_open()) return -1; | |
208 | #else | |
b6d061b7 | 209 | if(!findisc.is_open()) return -1; |
bb545331 | 210 | #endif |
b6d061b7 | 211 | |
212 | nn=0; //quarks | |
213 | while(findisc>>frrr[nn]>>fdaq[nn]) { | |
214 | nn++; | |
7a76a12e | 215 | if(nn==34) break; |
b6d061b7 | 216 | } |
217 | nn=0; //gluons | |
218 | while(findisc>>frrrg[nn]>>fdag[nn]) { | |
219 | nn++; | |
7a76a12e | 220 | if(nn==34) break; |
b6d061b7 | 221 | } |
222 | findisc.close(); | |
223 | fTablesLoaded = kTRUE; | |
224 | return 0; | |
225 | } | |
226 | ||
227 | /* | |
228 | C*************************************************************************** | |
229 | C Quenching Weights for Multiple Soft Scattering | |
230 | C February 10, 2003 | |
231 | C | |
232 | C Refs: | |
233 | C | |
234 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. | |
235 | C | |
236 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. | |
237 | C | |
238 | C | |
239 | C This package contains quenching weights for gluon radiation in the | |
240 | C multiple soft scattering approximation. | |
241 | C | |
242 | C swqmult returns the quenching weight for a quark (ipart=1) or | |
243 | C a gluon (ipart=2) traversing a medium with transport coeficient q and | |
244 | C length L. The input values are rrrr=0.5*q*L^3 and xxxx=w/wc, where | |
245 | C wc=0.5*q*L^2 and w is the energy radiated. The output values are | |
246 | C the continuous and discrete (prefactor of the delta function) parts | |
247 | C of the quenching weights. | |
248 | C | |
249 | C In order to use this routine, the files cont.all and disc.all need to be | |
250 | C in the working directory. | |
251 | C | |
252 | C An initialization of the tables is needed by doing call initmult before | |
253 | C using swqmult. | |
254 | C | |
255 | C Please, send us any comment: | |
256 | C | |
7a76a12e | 257 | C urs.wiedemann@cern.ch |
258 | C carlos.salgado@cern.ch | |
259 | C | |
260 | C | |
b6d061b7 | 261 | C------------------------------------------------------------------- |
262 | ||
263 | SUBROUTINE swqmult(ipart,rrrr,xxxx,continuous,discrete) | |
264 | * | |
7a76a12e | 265 | REAL*8 xx(400), daq(34), caq(34,261), rrr(34) |
b6d061b7 | 266 | COMMON /dataqua/ xx, daq, caq, rrr |
267 | * | |
7a76a12e | 268 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
b6d061b7 | 269 | COMMON /dataglu/ xxg, dag, cag, rrrg |
270 | ||
271 | REAL*8 rrrr,xxxx, continuous, discrete | |
272 | REAL*8 rrin, xxin | |
273 | INTEGER nrlow, nrhigh, nxlow, nxhigh | |
274 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh | |
275 | REAL*8 xfraclow, xfrachigh | |
276 | REAL*8 clow, chigh | |
277 | * | |
7a76a12e | 278 | |
279 | continuous=0.d0 | |
280 | discrete=0.d0 | |
281 | ||
b6d061b7 | 282 | rrin = rrrr |
283 | xxin = xxxx | |
284 | * | |
7a76a12e | 285 | do 666, nr=1,34 |
b6d061b7 | 286 | if (rrin.lt.rrr(nr)) then |
287 | rrhigh = rrr(nr) | |
288 | else | |
289 | rrhigh = rrr(nr-1) | |
290 | rrlow = rrr(nr) | |
291 | nrlow = nr | |
292 | nrhigh = nr-1 | |
293 | goto 665 | |
294 | endif | |
295 | 666 enddo | |
296 | 665 continue | |
297 | * | |
298 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) | |
299 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) | |
7a76a12e | 300 | if (rrin.gt.10000d0) then |
301 | rfraclow = dlog(rrhigh/rrin)/dlog(rrhigh/rrlow) | |
302 | rfrachigh = dlog(rrin/rrlow)/dlog(rrhigh/rrlow) | |
303 | endif | |
304 | * | |
305 | if (ipart.eq.1.and.rrin.ge.rrr(1)) then | |
306 | nrlow=1 | |
307 | nrhigh=1 | |
308 | rfraclow=1 | |
309 | rfrachigh=0 | |
310 | endif | |
311 | ||
312 | if (ipart.ne.1.and.rrin.ge.rrrg(1)) then | |
313 | nrlow=1 | |
314 | nrhigh=1 | |
315 | rfraclow=1 | |
316 | rfrachigh=0 | |
317 | endif | |
318 | ||
319 | if (xxxx.ge.xx(261)) go to 245 | |
320 | ||
321 | nxlow = int(xxin/0.01) + 1 | |
322 | nxhigh = nxlow + 1 | |
323 | xfraclow = (xx(nxhigh)-xxin)/0.01 | |
324 | xfrachigh = (xxin - xx(nxlow))/0.01 | |
b6d061b7 | 325 | * |
326 | if(ipart.eq.1) then | |
327 | clow = xfraclow*caq(nrlow,nxlow)+xfrachigh*caq(nrlow,nxhigh) | |
328 | chigh = xfraclow*caq(nrhigh,nxlow)+xfrachigh*caq(nrhigh,nxhigh) | |
329 | else | |
330 | clow = xfraclow*cag(nrlow,nxlow)+xfrachigh*cag(nrlow,nxhigh) | |
331 | chigh = xfraclow*cag(nrhigh,nxlow)+xfrachigh*cag(nrhigh,nxhigh) | |
332 | endif | |
333 | ||
334 | continuous = rfraclow*clow + rfrachigh*chigh | |
335 | ||
7a76a12e | 336 | 245 continue |
337 | ||
b6d061b7 | 338 | if(ipart.eq.1) then |
339 | discrete = rfraclow*daq(nrlow) + rfrachigh*daq(nrhigh) | |
340 | else | |
341 | discrete = rfraclow*dag(nrlow) + rfrachigh*dag(nrhigh) | |
342 | endif | |
343 | * | |
344 | END | |
345 | ||
346 | subroutine initmult | |
7a76a12e | 347 | REAL*8 xxq(400), daq(34), caq(34,261), rrr(34) |
b6d061b7 | 348 | COMMON /dataqua/ xxq, daq, caq, rrr |
349 | * | |
7a76a12e | 350 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
b6d061b7 | 351 | COMMON /dataglu/ xxg, dag, cag, rrrg |
352 | * | |
7a76a12e | 353 | OPEN(UNIT=20,FILE='contnew.all',STATUS='OLD',ERR=90) |
b6d061b7 | 354 | do 110 nn=1,261 |
355 | read (20,*) xxq(nn), caq(1,nn), caq(2,nn), caq(3,nn), | |
356 | + caq(4,nn), caq(5,nn), caq(6,nn), caq(7,nn), caq(8,nn), | |
357 | + caq(9,nn), caq(10,nn), caq(11,nn), caq(12,nn), | |
358 | + caq(13,nn), | |
359 | + caq(14,nn), caq(15,nn), caq(16,nn), caq(17,nn), | |
360 | + caq(18,nn), | |
361 | + caq(19,nn), caq(20,nn), caq(21,nn), caq(22,nn), | |
362 | + caq(23,nn), | |
363 | + caq(24,nn), caq(25,nn), caq(26,nn), caq(27,nn), | |
364 | + caq(28,nn), | |
7a76a12e | 365 | + caq(29,nn), caq(30,nn), caq(31,nn), caq(32,nn), |
366 | + caq(33,nn), caq(34,nn) | |
b6d061b7 | 367 | 110 continue |
368 | do 111 nn=1,261 | |
369 | read (20,*) xxg(nn), cag(1,nn), cag(2,nn), cag(3,nn), | |
370 | + cag(4,nn), cag(5,nn), cag(6,nn), cag(7,nn), cag(8,nn), | |
371 | + cag(9,nn), cag(10,nn), cag(11,nn), cag(12,nn), | |
372 | + cag(13,nn), | |
373 | + cag(14,nn), cag(15,nn), cag(16,nn), cag(17,nn), | |
374 | + cag(18,nn), | |
375 | + cag(19,nn), cag(20,nn), cag(21,nn), cag(22,nn), | |
376 | + cag(23,nn), | |
377 | + cag(24,nn), cag(25,nn), cag(26,nn), cag(27,nn), | |
378 | + cag(28,nn), | |
7a76a12e | 379 | + cag(29,nn), cag(30,nn), cag(31,nn), cag(32,nn), |
380 | + cag(33,nn), cag(34,nn) | |
b6d061b7 | 381 | 111 continue |
382 | close(20) | |
383 | * | |
7a76a12e | 384 | OPEN(UNIT=21,FILE='discnew.all',STATUS='OLD',ERR=91) |
385 | do 112 nn=1,34 | |
b6d061b7 | 386 | read (21,*) rrr(nn), daq(nn) |
387 | 112 continue | |
7a76a12e | 388 | do 113 nn=1,34 |
b6d061b7 | 389 | read (21,*) rrrg(nn), dag(nn) |
390 | 113 continue | |
391 | close(21) | |
392 | * | |
393 | goto 888 | |
394 | 90 PRINT*, 'input - output error' | |
395 | 91 PRINT*, 'input - output error #2' | |
396 | 888 continue | |
397 | ||
398 | end | |
399 | ||
7a76a12e | 400 | |
b6d061b7 | 401 | ======================================================================= |
402 | ||
403 | Adapted to ROOT macro by A. Dainese - 13/07/2003 | |
7a76a12e | 404 | Ported to class by C. Loizides - 12/02/2004 |
405 | New version for extended R values added - 06/03/2004 | |
b6d061b7 | 406 | */ |
407 | ||
408 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, Double_t rrrr,Double_t xxxx, | |
409 | Double_t &continuous,Double_t &discrete) const | |
410 | { | |
411 | // Calculate Multiple Scattering approx. | |
412 | // weights for given parton type, | |
413 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 | |
414 | ||
7a76a12e | 415 | //set result to zero |
416 | continuous=0.; | |
417 | discrete=0.; | |
418 | ||
7258586f | 419 | //read-in data before first call |
b6d061b7 | 420 | if(!fTablesLoaded){ |
421 | Error("CalcMult","Tables are not loaded."); | |
422 | return -1; | |
423 | } | |
424 | if(!fMultSoft){ | |
425 | Error("CalcMult","Tables are not loaded for Multiple Scattering."); | |
426 | return -1; | |
427 | } | |
428 | ||
429 | Double_t rrin = rrrr; | |
430 | Double_t xxin = xxxx; | |
431 | ||
7a76a12e | 432 | if(xxin>fxx[260]) return -1; |
b6d061b7 | 433 | Int_t nxlow = (Int_t)(xxin/0.01) + 1; |
434 | Int_t nxhigh = nxlow + 1; | |
435 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.01; | |
436 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.01; | |
437 | ||
438 | //why this? | |
7a76a12e | 439 | if(rrin<=frrr[33]) rrin = 1.05*frrr[33]; // AD |
b6d061b7 | 440 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
441 | ||
442 | Int_t nrlow=0,nrhigh=0; | |
443 | Double_t rrhigh=0,rrlow=0; | |
7a76a12e | 444 | for(Int_t nr=1; nr<=34; nr++) { |
b6d061b7 | 445 | if(rrin<frrr[nr-1]) { |
446 | rrhigh = frrr[nr-1]; | |
447 | } else { | |
448 | rrhigh = frrr[nr-1-1]; | |
449 | rrlow = frrr[nr-1]; | |
450 | nrlow = nr; | |
451 | nrhigh = nr-1; | |
452 | break; | |
453 | } | |
454 | } | |
455 | ||
456 | rrin = rrrr; // AD | |
457 | ||
458 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); | |
459 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); | |
460 | ||
7a76a12e | 461 | if(rrin>1.e4){ |
462 | rfraclow = TMath::Log2(rrhigh/rrin)/TMath::Log2(rrhigh/rrlow); | |
463 | rfrachigh = TMath::Log2(rrin/rrlow)/TMath::Log2(rrhigh/rrlow); | |
464 | } | |
465 | if((ipart==1) && (rrin>=frrr[0])) | |
466 | { | |
467 | nrlow=1; | |
468 | nrhigh=1; | |
469 | rfraclow=1.; | |
470 | rfrachigh=0.; | |
471 | } | |
472 | if((ipart==2) && (rrin>=frrrg[0])) | |
473 | { | |
474 | nrlow=1; | |
475 | nrhigh=1; | |
476 | rfraclow=1.; | |
477 | rfrachigh=0.; | |
478 | } | |
479 | ||
b6d061b7 | 480 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
481 | ||
482 | Double_t clow=0,chigh=0; | |
483 | if(ipart==1) { | |
484 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; | |
485 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; | |
486 | } else { | |
487 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; | |
488 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; | |
489 | } | |
490 | ||
491 | continuous = rfraclow*clow + rfrachigh*chigh; | |
492 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", | |
7258586f | 493 | //rfraclow,clow,rfrachigh,chigh,continuous); |
b6d061b7 | 494 | |
495 | if(ipart==1) { | |
496 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; | |
497 | } else { | |
498 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; | |
499 | } | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
504 | Int_t AliQuenchingWeights::InitSingleHard(const Char_t *contall,const Char_t *discall) | |
505 | { | |
506 | // read in tables for Single Hard Approx. | |
507 | // path to continuum and to discrete part | |
508 | ||
509 | fTablesLoaded = kFALSE; | |
510 | fMultSoft=kFALSE; | |
511 | ||
cabdfc37 | 512 | Char_t fname[1024]; |
7d62b2e2 | 513 | snprintf(fname, 1024, "%s",gSystem->ExpandPathName(contall)); |
bb545331 | 514 | //PH ifstream fincont(fname); |
cabdfc37 | 515 | fstream fincont(fname,ios::in); |
bb545331 | 516 | #if defined(__HP_aCC) || defined(__DECCXX) |
517 | if(!fincont.rdbuf()->is_open()) return -1; | |
518 | #else | |
b6d061b7 | 519 | if(!fincont.is_open()) return -1; |
bb545331 | 520 | #endif |
b6d061b7 | 521 | |
522 | Int_t nn=0; //quarks | |
523 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> | |
524 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> | |
525 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>> | |
526 | fcaq[13][nn]>> | |
527 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>> | |
528 | fcaq[18][nn]>> | |
529 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>> | |
530 | fcaq[23][nn]>> | |
531 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>> | |
532 | fcaq[28][nn]>> | |
533 | fcaq[29][nn]) | |
534 | { | |
535 | nn++; | |
536 | if(nn==261) break; | |
537 | } | |
538 | ||
539 | nn=0; //gluons | |
540 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> | |
541 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> | |
542 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>> | |
543 | fcag[13][nn]>> | |
544 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>> | |
545 | fcag[18][nn]>> | |
546 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>> | |
547 | fcag[23][nn]>> | |
548 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>> | |
549 | fcag[28][nn]>> | |
550 | fcag[29][nn]) { | |
551 | nn++; | |
552 | if(nn==261) break; | |
553 | } | |
554 | fincont.close(); | |
555 | ||
7d62b2e2 | 556 | snprintf(fname, 1024, "%s",gSystem->ExpandPathName(discall)); |
bb545331 | 557 | //PH ifstream findisc(fname); |
cabdfc37 | 558 | fstream findisc(fname,ios::in); |
bb545331 | 559 | #if defined(__HP_aCC) || defined(__DECCXX) |
560 | if(!findisc.rdbuf()->is_open()) return -1; | |
561 | #else | |
b6d061b7 | 562 | if(!findisc.is_open()) return -1; |
bb545331 | 563 | #endif |
b6d061b7 | 564 | |
565 | nn=0; //quarks | |
566 | while(findisc>>frrr[nn]>>fdaq[nn]) { | |
567 | nn++; | |
568 | if(nn==30) break; | |
569 | } | |
570 | nn=0; //gluons | |
571 | while(findisc>>frrrg[nn]>>fdag[nn]) { | |
572 | nn++; | |
573 | if(nn==30) break; | |
574 | } | |
575 | findisc.close(); | |
576 | ||
577 | fTablesLoaded = kTRUE; | |
578 | return 0; | |
579 | } | |
580 | ||
581 | /* | |
582 | C*************************************************************************** | |
583 | C Quenching Weights for Single Hard Scattering | |
584 | C February 20, 2003 | |
585 | C | |
586 | C Refs: | |
587 | C | |
588 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. | |
589 | C | |
590 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. | |
591 | C | |
592 | C | |
593 | C This package contains quenching weights for gluon radiation in the | |
594 | C single hard scattering approximation. | |
595 | C | |
596 | C swqlin returns the quenching weight for a quark (ipart=1) or | |
597 | C a gluon (ipart=2) traversing a medium with Debye screening mass mu and | |
598 | C length L. The input values are rrrr=0.5*mu^2*L^2 and xxxx=w/wc, where | |
599 | C wc=0.5*mu^2*L and w is the energy radiated. The output values are | |
600 | C the continuous and discrete (prefactor of the delta function) parts | |
601 | C of the quenching weights. | |
602 | C | |
603 | C In order to use this routine, the files contlin.all and disclin.all | |
604 | C need to be in the working directory. | |
605 | C | |
606 | C An initialization of the tables is needed by doing call initlin before | |
607 | C using swqlin. | |
608 | C | |
609 | C Please, send us any comment: | |
610 | C | |
611 | C urs.wiedemann@cern.ch | |
612 | C carlos.salgado@cern.ch | |
613 | C | |
614 | C | |
615 | C------------------------------------------------------------------- | |
616 | ||
617 | ||
618 | SUBROUTINE swqlin(ipart,rrrr,xxxx,continuous,discrete) | |
619 | * | |
620 | REAL*8 xx(400), dalq(30), calq(30,261), rrr(30) | |
621 | COMMON /datalinqua/ xx, dalq, calq, rrr | |
622 | * | |
623 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) | |
624 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg | |
625 | ||
626 | REAL*8 rrrr,xxxx, continuous, discrete | |
627 | REAL*8 rrin, xxin | |
628 | INTEGER nrlow, nrhigh, nxlow, nxhigh | |
629 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh | |
630 | REAL*8 xfraclow, xfrachigh | |
631 | REAL*8 clow, chigh | |
632 | * | |
633 | rrin = rrrr | |
634 | xxin = xxxx | |
635 | * | |
636 | nxlow = int(xxin/0.038) + 1 | |
637 | nxhigh = nxlow + 1 | |
638 | xfraclow = (xx(nxhigh)-xxin)/0.038 | |
639 | xfrachigh = (xxin - xx(nxlow))/0.038 | |
640 | * | |
641 | do 666, nr=1,30 | |
642 | if (rrin.lt.rrr(nr)) then | |
643 | rrhigh = rrr(nr) | |
644 | else | |
645 | rrhigh = rrr(nr-1) | |
646 | rrlow = rrr(nr) | |
647 | nrlow = nr | |
648 | nrhigh = nr-1 | |
649 | goto 665 | |
650 | endif | |
651 | 666 enddo | |
652 | 665 continue | |
653 | * | |
654 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) | |
655 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) | |
656 | * | |
657 | if(ipart.eq.1) then | |
658 | clow = xfraclow*calq(nrlow,nxlow)+xfrachigh*calq(nrlow,nxhigh) | |
659 | chigh = xfraclow*calq(nrhigh,nxlow)+xfrachigh*calq(nrhigh,nxhigh) | |
660 | else | |
661 | clow = xfraclow*calg(nrlow,nxlow)+xfrachigh*calg(nrlow,nxhigh) | |
662 | chigh = xfraclow*calg(nrhigh,nxlow)+xfrachigh*calg(nrhigh,nxhigh) | |
663 | endif | |
664 | ||
665 | continuous = rfraclow*clow + rfrachigh*chigh | |
666 | ||
667 | if(ipart.eq.1) then | |
668 | discrete = rfraclow*dalq(nrlow) + rfrachigh*dalq(nrhigh) | |
669 | else | |
670 | discrete = rfraclow*dalg(nrlow) + rfrachigh*dalg(nrhigh) | |
671 | endif | |
672 | * | |
673 | END | |
674 | ||
675 | subroutine initlin | |
676 | REAL*8 xxlq(400), dalq(30), calq(30,261), rrr(30) | |
677 | COMMON /datalinqua/ xxlq, dalq, calq, rrr | |
678 | * | |
679 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) | |
680 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg | |
681 | * | |
682 | OPEN(UNIT=20,FILE='contlin.all',STATUS='OLD',ERR=90) | |
683 | do 110 nn=1,261 | |
684 | read (20,*) xxlq(nn), calq(1,nn), calq(2,nn), calq(3,nn), | |
685 | + calq(4,nn), calq(5,nn), calq(6,nn), calq(7,nn), calq(8,nn), | |
686 | + calq(9,nn), calq(10,nn), calq(11,nn), calq(12,nn), | |
687 | + calq(13,nn), | |
688 | + calq(14,nn), calq(15,nn), calq(16,nn), calq(17,nn), | |
689 | + calq(18,nn), | |
690 | + calq(19,nn), calq(20,nn), calq(21,nn), calq(22,nn), | |
691 | + calq(23,nn), | |
692 | + calq(24,nn), calq(25,nn), calq(26,nn), calq(27,nn), | |
693 | + calq(28,nn), | |
694 | + calq(29,nn), calq(30,nn) | |
695 | 110 continue | |
696 | do 111 nn=1,261 | |
697 | read (20,*) xxlg(nn), calg(1,nn), calg(2,nn), calg(3,nn), | |
698 | + calg(4,nn), calg(5,nn), calg(6,nn), calg(7,nn), calg(8,nn), | |
699 | + calg(9,nn), calg(10,nn), calg(11,nn), calg(12,nn), | |
700 | + calg(13,nn), | |
701 | + calg(14,nn), calg(15,nn), calg(16,nn), calg(17,nn), | |
702 | + calg(18,nn), | |
703 | + calg(19,nn), calg(20,nn), calg(21,nn), calg(22,nn), | |
704 | + calg(23,nn), | |
705 | + calg(24,nn), calg(25,nn), calg(26,nn), calg(27,nn), | |
706 | + calg(28,nn), | |
707 | + calg(29,nn), calg(30,nn) | |
708 | 111 continue | |
709 | close(20) | |
710 | * | |
711 | OPEN(UNIT=21,FILE='disclin.all',STATUS='OLD',ERR=91) | |
712 | do 112 nn=1,30 | |
713 | read (21,*) rrr(nn), dalq(nn) | |
714 | 112 continue | |
715 | do 113 nn=1,30 | |
716 | read (21,*) rrrlg(nn), dalg(nn) | |
717 | 113 continue | |
718 | close(21) | |
719 | * | |
720 | goto 888 | |
721 | 90 PRINT*, 'input - output error' | |
722 | 91 PRINT*, 'input - output error #2' | |
723 | 888 continue | |
724 | ||
725 | end | |
726 | ||
727 | ======================================================================= | |
728 | ||
729 | Ported to class by C. Loizides - 17/02/2004 | |
730 | ||
731 | */ | |
732 | ||
733 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, Double_t rrrr,Double_t xxxx, | |
734 | Double_t &continuous,Double_t &discrete) const | |
735 | { | |
736 | // calculate Single Hard approx. | |
737 | // weights for given parton type, | |
738 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L | |
739 | ||
740 | // read-in data before first call | |
741 | if(!fTablesLoaded){ | |
7258586f | 742 | Error("CalcSingleHard","Tables are not loaded."); |
b6d061b7 | 743 | return -1; |
744 | } | |
20169737 | 745 | if(fMultSoft){ |
7258586f | 746 | Error("CalcSingleHard","Tables are not loaded for Single Hard Scattering."); |
b6d061b7 | 747 | return -1; |
748 | } | |
749 | ||
750 | Double_t rrin = rrrr; | |
751 | Double_t xxin = xxxx; | |
752 | ||
753 | Int_t nxlow = (Int_t)(xxin/0.038) + 1; | |
754 | Int_t nxhigh = nxlow + 1; | |
755 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.038; | |
756 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.038; | |
757 | ||
758 | //why this? | |
759 | if(rrin<=frrr[29]) rrin = 1.05*frrr[29]; // AD | |
760 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD | |
761 | ||
762 | Int_t nrlow=0,nrhigh=0; | |
763 | Double_t rrhigh=0,rrlow=0; | |
764 | for(Int_t nr=1; nr<=30; nr++) { | |
765 | if(rrin<frrr[nr-1]) { | |
766 | rrhigh = frrr[nr-1]; | |
767 | } else { | |
768 | rrhigh = frrr[nr-1-1]; | |
769 | rrlow = frrr[nr-1]; | |
770 | nrlow = nr; | |
771 | nrhigh = nr-1; | |
772 | break; | |
773 | } | |
774 | } | |
775 | ||
776 | rrin = rrrr; // AD | |
777 | ||
778 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); | |
779 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); | |
780 | ||
781 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD | |
782 | ||
783 | Double_t clow=0,chigh=0; | |
784 | if(ipart==1) { | |
785 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; | |
786 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; | |
787 | } else { | |
788 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; | |
789 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; | |
790 | } | |
791 | ||
792 | continuous = rfraclow*clow + rfrachigh*chigh; | |
793 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", | |
794 | // rfraclow,clow,rfrachigh,chigh,continuous); | |
795 | ||
796 | if(ipart==1) { | |
797 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; | |
798 | } else { | |
799 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; | |
800 | } | |
801 | ||
802 | return 0; | |
803 | } | |
804 | ||
805 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, | |
806 | Double_t w,Double_t qtransp,Double_t length, | |
807 | Double_t &continuous,Double_t &discrete) const | |
808 | { | |
7a76a12e | 809 | // Calculate Multiple Scattering approx. |
810 | // weights for given parton type, | |
811 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 | |
812 | ||
b6d061b7 | 813 | Double_t wc=CalcWC(qtransp,length); |
814 | Double_t rrrr=CalcR(wc,length); | |
815 | Double_t xxxx=w/wc; | |
816 | return CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
817 | } | |
818 | ||
819 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, | |
820 | Double_t w,Double_t mu,Double_t length, | |
821 | Double_t &continuous,Double_t &discrete) const | |
822 | { | |
7a76a12e | 823 | // calculate Single Hard approx. |
824 | // weights for given parton type, | |
825 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L | |
826 | ||
b6d061b7 | 827 | Double_t wcbar=CalcWCbar(mu,length); |
828 | Double_t rrrr=CalcR(wcbar,length); | |
829 | Double_t xxxx=w/wcbar; | |
830 | return CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
831 | } | |
832 | ||
833 | Double_t AliQuenchingWeights::CalcR(Double_t wc, Double_t l) const | |
834 | { | |
a42548b0 | 835 | //calculate r value and |
7a76a12e | 836 | //check if it is less then maximum |
837 | ||
a42548b0 | 838 | Double_t r = wc*l*fgkConvFmToInvGeV; |
839 | if(r >= fgkRMax) { | |
840 | Warning("CalcR","Value of r = %.2f; should be less than %.2f", r, fgkRMax); | |
cc885e36 | 841 | return fgkRMax-1; |
b6d061b7 | 842 | } |
a42548b0 | 843 | return r; |
b6d061b7 | 844 | } |
845 | ||
7258586f | 846 | Double_t AliQuenchingWeights::CalcRk(Double_t k, Double_t I0, Double_t I1) const |
847 | { | |
848 | //calculate R value and | |
849 | //check if it is less then maximum | |
850 | ||
a42548b0 | 851 | Double_t r = fgkRMax-1; |
7258586f | 852 | if(I0>0) |
a42548b0 | 853 | r = 2*I1*I1/I0*k; |
854 | if(r>=fgkRMax) { | |
855 | Warning("CalcRk","Value of r = %.2f; should be less than %.2f",r,fgkRMax); | |
cc885e36 | 856 | return fgkRMax-1; |
7258586f | 857 | } |
a42548b0 | 858 | return r; |
7258586f | 859 | } |
860 | ||
b6d061b7 | 861 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, Double_t length, Double_t e) const |
862 | { | |
863 | // return DeltaE for MS or SH scattering | |
864 | // for given parton type, length and energy | |
865 | // Dependant on ECM (energy constraint method) | |
866 | // e is used to determine where to set bins to zero. | |
867 | ||
868 | if(!fHistos){ | |
869 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); | |
870 | return -1000.; | |
871 | } | |
872 | if((ipart<1) || (ipart>2)) { | |
873 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
7258586f | 874 | return -1000.; |
b6d061b7 | 875 | } |
876 | ||
7258586f | 877 | Int_t l=GetIndex(length); |
b6d061b7 | 878 | if(l<=0) return 0.; |
b6d061b7 | 879 | |
880 | if(fECMethod==kReweight){ | |
facee35a | 881 | Double_t ret = 2.*e; |
882 | Int_t ws=0; | |
883 | while(ret>e){ | |
884 | ret=fHistos[ipart-1][l-1]->GetRandom(); | |
6bd26c4a | 885 | if(++ws==1e6){ |
886 | Warning("GetELossRandom", | |
620294e8 | 887 | "Stopping reweighting; maximum loss assigned after 1e6 trials."); |
facee35a | 888 | return e; |
889 | } | |
b6d061b7 | 890 | } |
b6d061b7 | 891 | return ret; |
892 | } | |
facee35a | 893 | //kDefault |
894 | Double_t ret=fHistos[ipart-1][l-1]->GetRandom(); | |
895 | if(ret>e) return e; | |
896 | return ret; | |
b6d061b7 | 897 | } |
898 | ||
899 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, Double_t length, Double_t e) const | |
900 | { | |
901 | //return quenched parton energy | |
902 | //for given parton type, length and energy | |
903 | ||
904 | Double_t loss=GetELossRandom(ipart,length,e); | |
905 | return e-loss; | |
906 | } | |
907 | ||
e99e3ed5 | 908 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, TH1F *hell, Double_t e) const |
b6d061b7 | 909 | { |
7a76a12e | 910 | // return DeltaE for MS or SH scattering |
911 | // for given parton type, length distribution and energy | |
912 | // Dependant on ECM (energy constraint method) | |
913 | // e is used to determine where to set bins to zero. | |
914 | ||
b6d061b7 | 915 | if(!hell){ |
916 | Warning("GetELossRandom","Pointer to length distribution is NULL."); | |
917 | return 0.; | |
918 | } | |
919 | Double_t ell=hell->GetRandom(); | |
920 | return GetELossRandom(ipart,ell,e); | |
921 | } | |
922 | ||
923 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, TH1F *hell, Double_t e) const | |
924 | { | |
925 | //return quenched parton energy | |
926 | //for given parton type, length distribution and energy | |
927 | ||
928 | Double_t loss=GetELossRandom(ipart,hell,e); | |
929 | return e-loss; | |
930 | } | |
931 | ||
7258586f | 932 | Double_t AliQuenchingWeights::GetELossRandomK(Int_t ipart, Double_t I0, Double_t I1, Double_t e) |
933 | { | |
934 | // return DeltaE for new dynamic version | |
935 | // for given parton type, I0 and I1 value and energy | |
936 | // Dependant on ECM (energy constraint method) | |
937 | // e is used to determine where to set bins to zero. | |
938 | ||
939 | // read-in data before first call | |
940 | if(!fTablesLoaded){ | |
941 | Fatal("GetELossRandomK","Tables are not loaded."); | |
942 | return -1000.; | |
943 | } | |
944 | if((ipart<1) || (ipart>2)) { | |
945 | Fatal("GetELossRandomK","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
946 | return -1000.; | |
947 | } | |
948 | ||
b90de01a | 949 | Double_t r=CalcRk(I0,I1); |
950 | if(r<0.){ | |
7258586f | 951 | Fatal("GetELossRandomK","R should not be negative"); |
952 | return -1000.; | |
953 | } | |
954 | Double_t wc=CalcWCk(I1); | |
cc885e36 | 955 | if(wc<=0.){ |
7258586f | 956 | Fatal("GetELossRandomK","wc should be greater than zero"); |
957 | return -1000.; | |
958 | } | |
b90de01a | 959 | if(SampleEnergyLoss(ipart,r)!=0){ |
7258586f | 960 | Fatal("GetELossRandomK","Could not sample energy loss"); |
961 | return -1000.; | |
962 | } | |
963 | ||
964 | if(fECMethod==kReweight){ | |
facee35a | 965 | Double_t ret = 2.*e; |
966 | Int_t ws=0; | |
967 | while(ret>e){ | |
968 | ret=fHisto->GetRandom(); | |
6bd26c4a | 969 | if(++ws==1e6){ |
facee35a | 970 | Warning("GetELossRandomK", |
620294e8 | 971 | "Stopping reweighting; maximum loss assigned after 1e6 trials."); |
facee35a | 972 | return e; |
973 | } | |
7258586f | 974 | } |
7258586f | 975 | return ret; |
976 | } | |
facee35a | 977 | |
978 | //kDefault | |
979 | Double_t ret=fHisto->GetRandom()*wc; | |
980 | if(ret>e) return e; | |
981 | return ret; | |
7258586f | 982 | } |
983 | ||
984 | Double_t AliQuenchingWeights::CalcQuenchedEnergyK(Int_t ipart, Double_t I0, Double_t I1, Double_t e) | |
985 | { | |
986 | //return quenched parton energy | |
987 | //for given parton type, I0 and I1 value and energy | |
988 | ||
989 | Double_t loss=GetELossRandomK(ipart,I0,I1,e); | |
990 | return e-loss; | |
991 | } | |
992 | ||
2552c51a | 993 | Double_t AliQuenchingWeights::GetELossRandomKFast(Int_t ipart, Double_t I0, Double_t I1, Double_t e) |
994 | { | |
995 | // return DeltaE for new dynamic version | |
996 | // for given parton type, I0 and I1 value and energy | |
997 | // Dependant on ECM (energy constraint method) | |
998 | // e is used to determine where to set bins to zero. | |
999 | // method is optimized and should only be used if | |
1000 | // all parameters are well within the bounds. | |
1001 | // read-in data tables before first call | |
1002 | ||
b90de01a | 1003 | Double_t r=CalcRk(I0,I1); |
1004 | if(r<=0.){ | |
2552c51a | 1005 | return 0.; |
1006 | } | |
1007 | ||
1008 | Double_t wc=CalcWCk(I1); | |
cc885e36 | 1009 | if(wc<=0.){ |
2552c51a | 1010 | return 0.; |
1011 | } | |
1012 | ||
b90de01a | 1013 | return GetELossRandomKFastR(ipart,r,wc,e); |
cc885e36 | 1014 | } |
1015 | ||
b90de01a | 1016 | Double_t AliQuenchingWeights::GetELossRandomKFastR(Int_t ipart, Double_t r, Double_t wc, Double_t e) |
cc885e36 | 1017 | { |
1018 | // return DeltaE for new dynamic version | |
1019 | // for given parton type, R and wc value and energy | |
1020 | // Dependant on ECM (energy constraint method) | |
1021 | // e is used to determine where to set bins to zero. | |
1022 | // method is optimized and should only be used if | |
1023 | // all parameters are well within the bounds. | |
1024 | // read-in data tables before first call | |
1025 | ||
b90de01a | 1026 | if(r>=fgkRMax) { |
1027 | r=fgkRMax-1; | |
cc885e36 | 1028 | } |
b677de56 | 1029 | |
2552c51a | 1030 | Double_t discrete=0.; |
cc885e36 | 1031 | Double_t continuous=0.; |
2552c51a | 1032 | Int_t bin=1; |
1033 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1034 | if(fMultSoft) | |
b90de01a | 1035 | CalcMult(ipart,r,xxxx,continuous,discrete); |
2552c51a | 1036 | else |
b90de01a | 1037 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
2552c51a | 1038 | |
b677de56 | 1039 | if(discrete>=1.0) { |
cc885e36 | 1040 | return 0.; //no energy loss |
2552c51a | 1041 | } |
620294e8 | 1042 | if (!fHisto) Init(); |
1043 | ||
2552c51a | 1044 | fHisto->SetBinContent(bin,continuous); |
b677de56 | 1045 | Int_t kbinmax=fHisto->FindBin(e/wc); |
1046 | if(kbinmax>=fgkBins) kbinmax=fgkBins-1; | |
cc885e36 | 1047 | if(kbinmax==1) return e; //maximum energy loss |
1048 | ||
8ab8044e | 1049 | if(fMultSoft) { |
599b2e92 | 1050 | for(bin=2; bin<=kbinmax; bin++) { |
8ab8044e | 1051 | xxxx = fHisto->GetBinCenter(bin); |
b90de01a | 1052 | CalcMult(ipart,r,xxxx,continuous,discrete); |
8ab8044e | 1053 | fHisto->SetBinContent(bin,continuous); |
1054 | } | |
1055 | } else { | |
599b2e92 | 1056 | for(bin=2; bin<=kbinmax; bin++) { |
8ab8044e | 1057 | xxxx = fHisto->GetBinCenter(bin); |
b90de01a | 1058 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
8ab8044e | 1059 | fHisto->SetBinContent(bin,continuous); |
1060 | } | |
1061 | } | |
2552c51a | 1062 | |
b677de56 | 1063 | if(fECMethod==kReweight){ |
8ab8044e | 1064 | fHisto->SetBinContent(kbinmax+1,0); |
b677de56 | 1065 | fHisto->Fill(0.,discrete*fgkBins/fgkMaxBin); |
1066 | } else if (fECMethod==kReweightCont) { | |
1067 | fHisto->SetBinContent(kbinmax+1,0); | |
1068 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1069 | fHisto->Scale(1./kdelta*(1-discrete)); | |
1070 | fHisto->Fill(0.,discrete); | |
1071 | } else { | |
1072 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1073 | Double_t val=discrete*fgkBins/fgkMaxBin; | |
1074 | fHisto->Fill(0.,val); | |
8ab8044e | 1075 | fHisto->SetBinContent(kbinmax+1,(1-discrete)*fgkBins/fgkMaxBin-kdelta); |
b677de56 | 1076 | } |
599b2e92 | 1077 | for(bin=kbinmax+2; bin<=fgkBins; bin++) { |
8ab8044e | 1078 | fHisto->SetBinContent(bin,0); |
1079 | } | |
b677de56 | 1080 | //cout << kbinmax << " " << discrete << " " << fHisto->Integral() << endl; |
2552c51a | 1081 | Double_t ret=fHisto->GetRandom()*wc; |
1082 | if(ret>e) return e; | |
1083 | return ret; | |
1084 | } | |
1085 | ||
1086 | Double_t AliQuenchingWeights::CalcQuenchedEnergyKFast(Int_t ipart, Double_t I0, Double_t I1, Double_t e) | |
1087 | { | |
1088 | //return quenched parton energy (fast method) | |
1089 | //for given parton type, I0 and I1 value and energy | |
1090 | ||
1091 | Double_t loss=GetELossRandomKFast(ipart,I0,I1,e); | |
1092 | return e-loss; | |
1093 | } | |
1094 | ||
b677de56 | 1095 | Double_t AliQuenchingWeights::GetDiscreteWeight(Int_t ipart, Double_t I0, Double_t I1) |
1096 | { | |
1097 | // return discrete weight | |
1098 | ||
b90de01a | 1099 | Double_t r=CalcRk(I0,I1); |
1100 | if(r<=0.){ | |
b677de56 | 1101 | return 1.; |
1102 | } | |
b90de01a | 1103 | return GetDiscreteWeightR(ipart,r); |
b677de56 | 1104 | } |
1105 | ||
b90de01a | 1106 | Double_t AliQuenchingWeights::GetDiscreteWeightR(Int_t ipart, Double_t r) |
b677de56 | 1107 | { |
1108 | // return discrete weight | |
1109 | ||
b90de01a | 1110 | if(r>=fgkRMax) { |
1111 | r=fgkRMax-1; | |
b677de56 | 1112 | } |
1113 | ||
1114 | Double_t discrete=0.; | |
1115 | Double_t continuous=0.; | |
1116 | Int_t bin=1; | |
1117 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
1118 | if(fMultSoft) | |
b90de01a | 1119 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1120 | else |
b90de01a | 1121 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1122 | return discrete; |
1123 | } | |
1124 | ||
b90de01a | 1125 | void AliQuenchingWeights::GetZeroLossProb(Double_t &p,Double_t &prw,Double_t &prwcont, |
b677de56 | 1126 | Int_t ipart,Double_t I0,Double_t I1,Double_t e) |
1127 | { | |
b90de01a | 1128 | //calculate the probabilty that there is no energy |
1129 | //loss for different ways of energy constraint | |
1130 | p=1.;prw=1.;prwcont=1.; | |
1131 | Double_t r=CalcRk(I0,I1); | |
1132 | if(r<=0.){ | |
b677de56 | 1133 | return; |
1134 | } | |
1135 | Double_t wc=CalcWCk(I1); | |
1136 | if(wc<=0.){ | |
1137 | return; | |
1138 | } | |
b90de01a | 1139 | GetZeroLossProbR(p,prw,prwcont,ipart,r,wc,e); |
b677de56 | 1140 | } |
1141 | ||
b90de01a | 1142 | void AliQuenchingWeights::GetZeroLossProbR(Double_t &p,Double_t &prw,Double_t &prwcont, |
1143 | Int_t ipart, Double_t r,Double_t wc,Double_t e) | |
b677de56 | 1144 | { |
b90de01a | 1145 | //calculate the probabilty that there is no energy |
1146 | //loss for different ways of energy constraint | |
1147 | if(r>=fgkRMax) { | |
1148 | r=fgkRMax-1; | |
b677de56 | 1149 | } |
1150 | ||
1151 | Double_t discrete=0.; | |
1152 | Double_t continuous=0.; | |
620294e8 | 1153 | if (!fHisto) Init(); |
b677de56 | 1154 | Int_t kbinmax=fHisto->FindBin(e/wc); |
1155 | if(kbinmax>=fgkBins) kbinmax=fgkBins-1; | |
1156 | if(fMultSoft) { | |
1157 | for(Int_t bin=1; bin<=kbinmax; bin++) { | |
1158 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
b90de01a | 1159 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1160 | fHisto->SetBinContent(bin,continuous); |
1161 | } | |
1162 | } else { | |
1163 | for(Int_t bin=1; bin<=kbinmax; bin++) { | |
1164 | Double_t xxxx = fHisto->GetBinCenter(bin); | |
b90de01a | 1165 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1166 | fHisto->SetBinContent(bin,continuous); |
1167 | } | |
1168 | } | |
1169 | ||
1170 | //non-reweighted P(Delta E = 0) | |
1171 | const Double_t kdelta=fHisto->Integral(1,kbinmax); | |
1172 | Double_t val=discrete*fgkBins/fgkMaxBin; | |
1173 | fHisto->Fill(0.,val); | |
1174 | fHisto->SetBinContent(kbinmax+1,(1-discrete)*fgkBins/fgkMaxBin-kdelta); | |
1175 | Double_t hint=fHisto->Integral(1,kbinmax+1); | |
1176 | p=fHisto->GetBinContent(1)/hint; | |
1177 | ||
1178 | // reweighted | |
1179 | hint=fHisto->Integral(1,kbinmax); | |
1180 | prw=fHisto->GetBinContent(1)/hint; | |
1181 | ||
1182 | Double_t xxxx = fHisto->GetBinCenter(1); | |
b90de01a | 1183 | CalcMult(ipart,r,xxxx,continuous,discrete); |
b677de56 | 1184 | fHisto->SetBinContent(1,continuous); |
1185 | hint=fHisto->Integral(1,kbinmax); | |
1186 | fHisto->Scale(1./hint*(1-discrete)); | |
1187 | fHisto->Fill(0.,discrete); | |
b90de01a | 1188 | prwcont=fHisto->GetBinContent(1); |
b677de56 | 1189 | } |
1190 | ||
b6d061b7 | 1191 | Int_t AliQuenchingWeights::SampleEnergyLoss() |
1192 | { | |
1193 | // Has to be called to fill the histograms | |
1194 | // | |
1195 | // For stored values fQTransport loop over | |
1196 | // particle type and length = 1 to fMaxLength (fm) | |
1197 | // to fill energy loss histos | |
1198 | // | |
1199 | // Take histogram of continuous weights | |
1200 | // Take discrete_weight | |
1201 | // If discrete_weight > 1, put all channels to 0, except channel 1 | |
1202 | // Fill channel 1 with discrete_weight/(1-discrete_weight)*integral | |
1203 | ||
1204 | // read-in data before first call | |
1205 | if(!fTablesLoaded){ | |
7258586f | 1206 | Error("SampleEnergyLoss","Tables are not loaded."); |
b6d061b7 | 1207 | return -1; |
1208 | } | |
1209 | ||
1210 | if(fMultSoft) { | |
1211 | Int_t lmax=CalcLengthMax(fQTransport); | |
1212 | if(fLengthMax>lmax){ | |
7a76a12e | 1213 | Info("SampleEnergyLoss","Maximum length changed from %d to %d;\nin order to have R < %.f",fLengthMax,lmax,fgkRMax); |
b6d061b7 | 1214 | fLengthMax=lmax; |
1215 | } | |
1216 | } else { | |
1217 | Warning("SampleEnergyLoss","Maximum length not checked,\nbecause SingeHard is not yet tested."); | |
1218 | } | |
1219 | ||
1220 | Reset(); | |
1221 | fHistos=new TH1F**[2]; | |
9d851d20 | 1222 | fHistos[0]=new TH1F*[4*fLengthMax]; |
1223 | fHistos[1]=new TH1F*[4*fLengthMax]; | |
b6d061b7 | 1224 | fLengthMaxOld=fLengthMax; //remember old value in case |
1225 | //user wants to reset | |
1226 | ||
1227 | Int_t medvalue=0; | |
1228 | Char_t meddesc[100]; | |
1229 | if(fMultSoft) { | |
1230 | medvalue=(Int_t)(fQTransport*1000.); | |
7d62b2e2 | 1231 | snprintf(meddesc, 100, "MS"); |
b6d061b7 | 1232 | } else { |
1233 | medvalue=(Int_t)(fMu*1000.); | |
7d62b2e2 | 1234 | snprintf(meddesc, 100, "SH"); |
b6d061b7 | 1235 | } |
1236 | ||
1237 | for(Int_t ipart=1;ipart<=2;ipart++){ | |
9d851d20 | 1238 | for(Int_t l=1;l<=4*fLengthMax;l++){ |
b6d061b7 | 1239 | Char_t hname[100]; |
7d62b2e2 | 1240 | snprintf(hname, 100, "hDisc-ContQW_%s_%d_%d_%d_%d",meddesc,fInstanceNumber,ipart,medvalue,l); |
9d851d20 | 1241 | Double_t len=l/4.; |
7258586f | 1242 | Double_t wc = CalcWC(len); |
2552c51a | 1243 | fHistos[ipart-1][l-1] = new TH1F(hname,hname,fgkBins,0.,fgkMaxBin*wc); |
b6d061b7 | 1244 | fHistos[ipart-1][l-1]->SetXTitle("#Delta E [GeV]"); |
1245 | fHistos[ipart-1][l-1]->SetYTitle("p(#Delta E)"); | |
1246 | fHistos[ipart-1][l-1]->SetLineColor(4); | |
1247 | ||
7258586f | 1248 | Double_t rrrr = CalcR(wc,len); |
b6d061b7 | 1249 | Double_t discrete=0.; |
1250 | // loop on histogram channels | |
2552c51a | 1251 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1252 | Double_t xxxx = fHistos[ipart-1][l-1]->GetBinCenter(bin)/wc; |
1253 | Double_t continuous; | |
7258586f | 1254 | if(fMultSoft) |
1255 | CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1256 | else | |
1257 | CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
b6d061b7 | 1258 | fHistos[ipart-1][l-1]->SetBinContent(bin,continuous); |
1259 | } | |
1260 | // add discrete part to distribution | |
1261 | if(discrete>=1.) | |
2552c51a | 1262 | for(Int_t bin=2;bin<=fgkBins;bin++) |
b6d061b7 | 1263 | fHistos[ipart-1][l-1]->SetBinContent(bin,0.); |
1264 | else { | |
2552c51a | 1265 | Double_t val=discrete/(1.-discrete)*fHistos[ipart-1][l-1]->Integral(1,fgkBins); |
b6d061b7 | 1266 | fHistos[ipart-1][l-1]->Fill(0.,val); |
1267 | } | |
2552c51a | 1268 | Double_t hint=fHistos[ipart-1][l-1]->Integral(1,fgkBins); |
b6d061b7 | 1269 | fHistos[ipart-1][l-1]->Scale(1./hint); |
1270 | } | |
1271 | } | |
1272 | return 0; | |
1273 | } | |
1274 | ||
b90de01a | 1275 | Int_t AliQuenchingWeights::SampleEnergyLoss(Int_t ipart, Double_t r) |
7258586f | 1276 | { |
1277 | // Sample energy loss directly for one particle type | |
1278 | // choses R (safe it and keep it until next call of function) | |
1279 | ||
1280 | // read-in data before first call | |
1281 | if(!fTablesLoaded){ | |
1282 | Error("SampleEnergyLoss","Tables are not loaded."); | |
1283 | return -1; | |
1284 | } | |
1285 | ||
1286 | Double_t discrete=0.; | |
1287 | Double_t continuous=0;; | |
1288 | Int_t bin=1; | |
620294e8 | 1289 | if (!fHisto) Init(); |
7258586f | 1290 | Double_t xxxx = fHisto->GetBinCenter(bin); |
1291 | if(fMultSoft) | |
b90de01a | 1292 | CalcMult(ipart,r,xxxx,continuous,discrete); |
7258586f | 1293 | else |
b90de01a | 1294 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
7258586f | 1295 | |
1296 | if(discrete>=1.) { | |
1297 | fHisto->SetBinContent(1,1.); | |
599b2e92 | 1298 | for(bin=2;bin<=fgkBins;bin++) |
7258586f | 1299 | fHisto->SetBinContent(bin,0.); |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | fHisto->SetBinContent(bin,continuous); | |
599b2e92 | 1304 | for(bin=2; bin<=fgkBins; bin++) { |
7258586f | 1305 | xxxx = fHisto->GetBinCenter(bin); |
1306 | if(fMultSoft) | |
b90de01a | 1307 | CalcMult(ipart,r,xxxx,continuous,discrete); |
7258586f | 1308 | else |
b90de01a | 1309 | CalcSingleHard(ipart,r,xxxx,continuous,discrete); |
7258586f | 1310 | fHisto->SetBinContent(bin,continuous); |
1311 | } | |
8ab8044e | 1312 | |
2552c51a | 1313 | Double_t val=discrete/(1.-discrete)*fHisto->Integral(1,fgkBins); |
7258586f | 1314 | fHisto->Fill(0.,val); |
2552c51a | 1315 | Double_t hint=fHisto->Integral(1,fgkBins); |
7258586f | 1316 | if(hint!=0) |
1317 | fHisto->Scale(1./hint); | |
1318 | else { | |
2552c51a | 1319 | //cout << discrete << " " << hint << " " << continuous << endl; |
7258586f | 1320 | return -1; |
1321 | } | |
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | const TH1F* AliQuenchingWeights::GetHisto(Int_t ipart,Double_t length) const | |
b6d061b7 | 1326 | { |
7a76a12e | 1327 | //return quenching histograms |
1328 | //for ipart and length | |
1329 | ||
b6d061b7 | 1330 | if(!fHistos){ |
1331 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); | |
1332 | return 0; | |
1333 | } | |
1334 | if((ipart<1) || (ipart>2)) { | |
1335 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); | |
1336 | return 0; | |
1337 | } | |
1338 | ||
7258586f | 1339 | Int_t l=GetIndex(length); |
b6d061b7 | 1340 | if(l<=0) return 0; |
b6d061b7 | 1341 | return fHistos[ipart-1][l-1]; |
1342 | } | |
1343 | ||
1344 | TH1F* AliQuenchingWeights::ComputeQWHisto(Int_t ipart,Double_t medval,Double_t length) const | |
1345 | { | |
1346 | // ipart = 1 for quark, 2 for gluon | |
1347 | // medval a) qtransp = transport coefficient (GeV^2/fm) | |
1348 | // b) mu = Debye mass (GeV) | |
1349 | // length = path length in medium (fm) | |
1350 | // Get from SW tables: | |
7258586f | 1351 | // - continuous weight, as a function of dE/wc |
b6d061b7 | 1352 | |
1353 | Double_t wc = 0; | |
1354 | Char_t meddesc[100]; | |
1355 | if(fMultSoft) { | |
1356 | wc=CalcWC(medval,length); | |
7d62b2e2 | 1357 | snprintf(meddesc, 100, "MS"); |
b6d061b7 | 1358 | } else { |
1359 | wc=CalcWCbar(medval,length); | |
7d62b2e2 | 1360 | snprintf(meddesc, 100, "SH"); |
b6d061b7 | 1361 | } |
1362 | ||
1363 | Char_t hname[100]; | |
7d62b2e2 | 1364 | snprintf(hname, 100, "hContQWHisto_%s_%d_%d_%d",meddesc,ipart, |
b6d061b7 | 1365 | (Int_t)(medval*1000.),(Int_t)length); |
1366 | ||
2552c51a | 1367 | TH1F *hist = new TH1F("hist",hname,fgkBins,0.,fgkMaxBin*wc); |
b6d061b7 | 1368 | hist->SetXTitle("#Delta E [GeV]"); |
1369 | hist->SetYTitle("p(#Delta E)"); | |
1370 | hist->SetLineColor(4); | |
1371 | ||
1372 | Double_t rrrr = CalcR(wc,length); | |
7258586f | 1373 | //loop on histogram channels |
2552c51a | 1374 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1375 | Double_t xxxx = hist->GetBinCenter(bin)/wc; |
1376 | Double_t continuous,discrete; | |
1377 | Int_t ret=0; | |
1378 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1379 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1380 | if(ret!=0){ | |
1381 | delete hist; | |
1382 | return 0; | |
1383 | }; | |
1384 | hist->SetBinContent(bin,continuous); | |
1385 | } | |
1386 | return hist; | |
1387 | } | |
1388 | ||
1389 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t medval,Double_t length) const | |
1390 | { | |
1391 | // ipart = 1 for quark, 2 for gluon | |
1392 | // medval a) qtransp = transport coefficient (GeV^2/fm) | |
1393 | // b) mu = Debye mass (GeV) | |
1394 | // length = path length in medium (fm) | |
1395 | // Get from SW tables: | |
7258586f | 1396 | // - continuous weight, as a function of dE/wc |
b6d061b7 | 1397 | |
1398 | Double_t wc = 0; | |
1399 | Char_t meddesc[100]; | |
1400 | if(fMultSoft) { | |
1401 | wc=CalcWC(medval,length); | |
7d62b2e2 | 1402 | snprintf(meddesc, 100, "MS"); |
b6d061b7 | 1403 | } else { |
1404 | wc=CalcWCbar(medval,length); | |
7d62b2e2 | 1405 | snprintf(meddesc, 100, "SH"); |
b6d061b7 | 1406 | } |
1407 | ||
1408 | Char_t hname[100]; | |
7d62b2e2 | 1409 | snprintf(hname, 100, "hContQWHistox_%s_%d_%d_%d",meddesc,ipart, |
b6d061b7 | 1410 | (Int_t)(medval*1000.),(Int_t)length); |
1411 | ||
2552c51a | 1412 | TH1F *histx = new TH1F("histx",hname,fgkBins,0.,fgkMaxBin); |
b6d061b7 | 1413 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
1414 | if(fMultSoft) | |
1415 | histx->SetYTitle("p(#Delta E/#omega_{c})"); | |
1416 | else | |
1417 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); | |
1418 | histx->SetLineColor(4); | |
1419 | ||
1420 | Double_t rrrr = CalcR(wc,length); | |
7258586f | 1421 | //loop on histogram channels |
2552c51a | 1422 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
b6d061b7 | 1423 | Double_t xxxx = histx->GetBinCenter(bin); |
1424 | Double_t continuous,discrete; | |
1425 | Int_t ret=0; | |
1426 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1427 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1428 | if(ret!=0){ | |
1429 | delete histx; | |
1430 | return 0; | |
1431 | }; | |
1432 | histx->SetBinContent(bin,continuous); | |
1433 | } | |
1434 | return histx; | |
1435 | } | |
1436 | ||
b90de01a | 1437 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t r) const |
7258586f | 1438 | { |
1439 | // compute P(E) distribution for | |
1440 | // given ipart = 1 for quark, 2 for gluon | |
1441 | // and R | |
1442 | ||
1443 | Char_t meddesc[100]; | |
1444 | if(fMultSoft) { | |
7d62b2e2 | 1445 | snprintf(meddesc, 100, "MS"); |
7258586f | 1446 | } else { |
7d62b2e2 | 1447 | snprintf(meddesc, 100, "SH"); |
7258586f | 1448 | } |
1449 | ||
1450 | Char_t hname[100]; | |
7d62b2e2 | 1451 | snprintf(hname, 100, "hQWHistox_%s_%d_%.2f",meddesc,ipart,r); |
2552c51a | 1452 | TH1F *histx = new TH1F("histx",hname,fgkBins,0.,fgkMaxBin); |
7258586f | 1453 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
1454 | if(fMultSoft) | |
1455 | histx->SetYTitle("p(#Delta E/#omega_{c})"); | |
1456 | else | |
1457 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); | |
1458 | histx->SetLineColor(4); | |
1459 | ||
b90de01a | 1460 | Double_t rrrr = r; |
7258586f | 1461 | Double_t continuous=0.,discrete=0.; |
1462 | //loop on histogram channels | |
2552c51a | 1463 | for(Int_t bin=1; bin<=fgkBins; bin++) { |
7258586f | 1464 | Double_t xxxx = histx->GetBinCenter(bin); |
1465 | Int_t ret=0; | |
1466 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); | |
1467 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); | |
1468 | if(ret!=0){ | |
1469 | delete histx; | |
1470 | return 0; | |
1471 | }; | |
1472 | histx->SetBinContent(bin,continuous); | |
1473 | } | |
1474 | ||
1475 | //add discrete part to distribution | |
1476 | if(discrete>=1.) | |
2552c51a | 1477 | for(Int_t bin=2;bin<=fgkBins;bin++) |
7258586f | 1478 | histx->SetBinContent(bin,0.); |
1479 | else { | |
2552c51a | 1480 | Double_t val=discrete/(1.-discrete)*histx->Integral(1,fgkBins); |
7258586f | 1481 | histx->Fill(0.,val); |
1482 | } | |
2552c51a | 1483 | Double_t hint=histx->Integral(1,fgkBins); |
7258586f | 1484 | if(hint!=0) histx->Scale(1./hint); |
1485 | ||
1486 | return histx; | |
1487 | } | |
1488 | ||
e99e3ed5 | 1489 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,Double_t l,Double_t e) const |
b6d061b7 | 1490 | { |
7258586f | 1491 | // compute energy loss histogram for |
1492 | // parton type, medium value, length and energy | |
7a76a12e | 1493 | |
b6d061b7 | 1494 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
1495 | if(fMultSoft){ | |
1496 | dummy->SetQTransport(medval); | |
1497 | dummy->InitMult(); | |
1498 | } else { | |
1499 | dummy->SetMu(medval); | |
1500 | dummy->InitSingleHard(); | |
1501 | } | |
1502 | dummy->SampleEnergyLoss(); | |
1503 | ||
1504 | Char_t name[100]; | |
1505 | Char_t hname[100]; | |
1506 | if(ipart==1){ | |
7d62b2e2 | 1507 | snprintf(name, 100, "Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); |
1508 | snprintf(hname,100, "hLossQuarks"); | |
b6d061b7 | 1509 | } else { |
7d62b2e2 | 1510 | snprintf(name, 100, "Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); |
1511 | snprintf(hname, 100, "hLossGluons"); | |
b6d061b7 | 1512 | } |
1513 | ||
1514 | TH1F *h = new TH1F(hname,name,250,0,250); | |
1515 | for(Int_t i=0;i<100000;i++){ | |
1516 | //if(i % 1000 == 0) cout << "." << flush; | |
1517 | Double_t loss=dummy->GetELossRandom(ipart,l,e); | |
1518 | h->Fill(loss); | |
1519 | } | |
b6d061b7 | 1520 | h->SetStats(kTRUE); |
b6d061b7 | 1521 | delete dummy; |
1522 | return h; | |
1523 | } | |
1524 | ||
e99e3ed5 | 1525 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,TH1F *hEll,Double_t e) const |
b6d061b7 | 1526 | { |
7258586f | 1527 | // compute energy loss histogram for |
1528 | // parton type, medium value, | |
1529 | // length distribution and energy | |
7a76a12e | 1530 | |
b6d061b7 | 1531 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
1532 | if(fMultSoft){ | |
1533 | dummy->SetQTransport(medval); | |
1534 | dummy->InitMult(); | |
1535 | } else { | |
1536 | dummy->SetMu(medval); | |
1537 | dummy->InitSingleHard(); | |
1538 | } | |
1539 | dummy->SampleEnergyLoss(); | |
1540 | ||
1541 | Char_t name[100]; | |
1542 | Char_t hname[100]; | |
1543 | if(ipart==1){ | |
7d62b2e2 | 1544 | snprintf(name, 100, "Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); |
1545 | snprintf(hname,100, "hLossQuarks"); | |
b6d061b7 | 1546 | } else { |
7d62b2e2 | 1547 | snprintf(name,100, "Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); |
1548 | snprintf(hname, 100, "hLossGluons"); | |
b6d061b7 | 1549 | } |
1550 | ||
1551 | TH1F *h = new TH1F(hname,name,250,0,250); | |
1552 | for(Int_t i=0;i<100000;i++){ | |
1553 | //if(i % 1000 == 0) cout << "." << flush; | |
1554 | Double_t loss=dummy->GetELossRandom(ipart,hEll,e); | |
1555 | h->Fill(loss); | |
1556 | } | |
b6d061b7 | 1557 | h->SetStats(kTRUE); |
b6d061b7 | 1558 | delete dummy; |
1559 | return h; | |
1560 | } | |
1561 | ||
b90de01a | 1562 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t r) const |
7258586f | 1563 | { |
1564 | // compute energy loss histogram for | |
1565 | // parton type and given R | |
1566 | ||
b90de01a | 1567 | TH1F *dummy = ComputeQWHistoX(ipart,r); |
7258586f | 1568 | if(!dummy) return 0; |
1569 | ||
1570 | Char_t hname[100]; | |
7d62b2e2 | 1571 | snprintf(hname, 100, "hELossHistox_%d_%.2f",ipart,r); |
2552c51a | 1572 | TH1F *histx = new TH1F("histxr",hname,fgkBins,0.,fgkMaxBin); |
7258586f | 1573 | for(Int_t i=0;i<100000;i++){ |
1574 | //if(i % 1000 == 0) cout << "." << flush; | |
1575 | Double_t loss=dummy->GetRandom(); | |
1576 | histx->Fill(loss); | |
1577 | } | |
1578 | delete dummy; | |
1579 | return histx; | |
1580 | } | |
1581 | ||
1582 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t medval,Double_t l) const | |
1583 | { | |
1584 | // compute average energy loss for | |
1585 | // parton type, medium value, length and energy | |
1586 | ||
1587 | TH1F *dummy = ComputeELossHisto(ipart,medval,l); | |
1588 | if(!dummy) return 0; | |
1589 | Double_t ret=dummy->GetMean(); | |
1590 | delete dummy; | |
1591 | return ret; | |
1592 | } | |
1593 | ||
1594 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t medval,TH1F *hEll) const | |
1595 | { | |
1596 | // compute average energy loss for | |
1597 | // parton type, medium value, | |
1598 | // length distribution and energy | |
1599 | ||
1600 | TH1F *dummy = ComputeELossHisto(ipart,medval,hEll); | |
1601 | if(!dummy) return 0; | |
1602 | Double_t ret=dummy->GetMean(); | |
1603 | delete dummy; | |
1604 | return ret; | |
1605 | } | |
1606 | ||
b90de01a | 1607 | Double_t AliQuenchingWeights::GetMeanELoss(Int_t ipart,Double_t r) const |
7258586f | 1608 | { |
1609 | // compute average energy loss over wc | |
1610 | // for parton type and given R | |
1611 | ||
b90de01a | 1612 | TH1F *dummy = ComputeELossHisto(ipart,r); |
7258586f | 1613 | if(!dummy) return 0; |
1614 | Double_t ret=dummy->GetMean(); | |
1615 | delete dummy; | |
1616 | return ret; | |
1617 | } | |
1618 | ||
9175f0df | 1619 | void AliQuenchingWeights::PlotDiscreteWeights(Double_t len,Double_t qm) const |
b6d061b7 | 1620 | { |
7258586f | 1621 | // plot discrete weights for given length |
7a76a12e | 1622 | |
b6d061b7 | 1623 | TCanvas *c; |
1624 | if(fMultSoft) | |
1625 | c = new TCanvas("cdiscms","Discrete Weight for Multiple Scattering",0,0,500,400); | |
1626 | else | |
1627 | c = new TCanvas("cdiscsh","Discrete Weight for Single Hard Scattering",0,0,500,400); | |
1628 | c->cd(); | |
1629 | ||
9175f0df | 1630 | TH2F *hframe = new TH2F("hdisc","",2,0,qm+.1,2,0,1.25); |
b6d061b7 | 1631 | hframe->SetStats(0); |
1632 | if(fMultSoft) | |
1633 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1634 | else | |
1635 | hframe->SetXTitle("#mu [GeV]"); | |
9175f0df | 1636 | //hframe->SetYTitle("Probability #Delta E = 0 , p_{0}"); |
1637 | hframe->SetYTitle("p_{0} (discrete weight)"); | |
b6d061b7 | 1638 | hframe->Draw(); |
1639 | ||
9175f0df | 1640 | Int_t points=(Int_t)qm*4; |
1641 | TGraph *gq=new TGraph(points); | |
b6d061b7 | 1642 | Int_t i=0; |
1643 | if(fMultSoft) { | |
9175f0df | 1644 | for(Double_t q=0.05;q<=qm+.05;q+=0.25){ |
b6d061b7 | 1645 | Double_t disc,cont; |
7258586f | 1646 | CalcMult(1,1.0,q,len,cont,disc); |
b6d061b7 | 1647 | gq->SetPoint(i,q,disc);i++; |
1648 | } | |
1649 | } else { | |
9175f0df | 1650 | for(Double_t m=0.05;m<=qm+.05;m+=0.25){ |
b6d061b7 | 1651 | Double_t disc,cont; |
7258586f | 1652 | CalcSingleHard(1,1.0,m,len,cont, disc); |
b6d061b7 | 1653 | gq->SetPoint(i,m,disc);i++; |
1654 | } | |
1655 | } | |
1656 | gq->SetMarkerStyle(20); | |
9175f0df | 1657 | gq->SetMarkerColor(1); |
1658 | gq->SetLineStyle(1); | |
1659 | gq->SetLineColor(1); | |
1660 | gq->Draw("l"); | |
b6d061b7 | 1661 | |
9175f0df | 1662 | TGraph *gg=new TGraph(points); |
b6d061b7 | 1663 | i=0; |
1664 | if(fMultSoft){ | |
9175f0df | 1665 | for(Double_t q=0.05;q<=qm+.05;q+=0.25){ |
b6d061b7 | 1666 | Double_t disc,cont; |
7258586f | 1667 | CalcMult(2,1.0,q,len,cont,disc); |
b6d061b7 | 1668 | gg->SetPoint(i,q,disc);i++; |
1669 | } | |
1670 | } else { | |
9175f0df | 1671 | for(Double_t m=0.05;m<=qm+.05;m+=0.25){ |
b6d061b7 | 1672 | Double_t disc,cont; |
7258586f | 1673 | CalcSingleHard(2,1.0,m,len,cont,disc); |
b6d061b7 | 1674 | gg->SetPoint(i,m,disc);i++; |
1675 | } | |
1676 | } | |
1677 | gg->SetMarkerStyle(24); | |
9175f0df | 1678 | gg->SetMarkerColor(2); |
1679 | gg->SetLineStyle(2); | |
1680 | gg->SetLineColor(2); | |
1681 | gg->Draw("l"); | |
b6d061b7 | 1682 | |
1683 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1684 | l1a->SetFillStyle(0); | |
1685 | l1a->SetBorderSize(0); | |
1686 | Char_t label[100]; | |
7d62b2e2 | 1687 | snprintf(label, 100, "L = %.1f fm",len); |
b6d061b7 | 1688 | l1a->AddEntry(gq,label,""); |
9175f0df | 1689 | l1a->AddEntry(gq,"quark projectile","l"); |
1690 | l1a->AddEntry(gg,"gluon projectile","l"); | |
b6d061b7 | 1691 | l1a->Draw(); |
1692 | ||
1693 | c->Update(); | |
1694 | } | |
1695 | ||
7258586f | 1696 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Double_t ell) const |
b6d061b7 | 1697 | { |
7258586f | 1698 | // plot continous weights for |
1699 | // given parton type and length | |
7a76a12e | 1700 | |
b6d061b7 | 1701 | Float_t medvals[3]; |
1702 | Char_t title[1024]; | |
1703 | Char_t name[1024]; | |
1704 | if(fMultSoft) { | |
1705 | if(itype==1) | |
7d62b2e2 | 1706 | snprintf(title, 1024, "Cont. Weight for Multiple Scattering - Quarks"); |
b6d061b7 | 1707 | else if(itype==2) |
7d62b2e2 | 1708 | snprintf(title, 1024, "Cont. Weight for Multiple Scattering - Gluons"); |
b6d061b7 | 1709 | else return; |
1710 | medvals[0]=4;medvals[1]=1;medvals[2]=0.5; | |
7d62b2e2 | 1711 | snprintf(name, 1024, "ccont-ms-%d",itype); |
b6d061b7 | 1712 | } else { |
1713 | if(itype==1) | |
7d62b2e2 | 1714 | snprintf(title, 1024, "Cont. Weight for Single Hard Scattering - Quarks"); |
b6d061b7 | 1715 | else if(itype==2) |
7d62b2e2 | 1716 | snprintf(title, 1024, "Cont. Weight for Single Hard Scattering - Gluons"); |
b6d061b7 | 1717 | else return; |
1718 | medvals[0]=2;medvals[1]=1;medvals[2]=0.5; | |
7d62b2e2 | 1719 | snprintf(name, 1024, "ccont-ms-%d",itype); |
b6d061b7 | 1720 | } |
1721 | ||
1722 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1723 | c->cd(); | |
1724 | TH1F *h1=ComputeQWHisto(itype,medvals[0],ell); | |
1725 | h1->SetName("h1"); | |
1726 | h1->SetTitle(title); | |
1727 | h1->SetStats(0); | |
1728 | h1->SetLineColor(1); | |
1729 | h1->DrawCopy(); | |
1730 | TH1F *h2=ComputeQWHisto(itype,medvals[1],ell); | |
1731 | h2->SetName("h2"); | |
1732 | h2->SetLineColor(2); | |
1733 | h2->DrawCopy("SAME"); | |
1734 | TH1F *h3=ComputeQWHisto(itype,medvals[2],ell); | |
1735 | h3->SetName("h3"); | |
1736 | h3->SetLineColor(3); | |
1737 | h3->DrawCopy("SAME"); | |
1738 | ||
1739 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1740 | l1a->SetFillStyle(0); | |
1741 | l1a->SetBorderSize(0); | |
1742 | Char_t label[100]; | |
7d62b2e2 | 1743 | snprintf(label, 100, "L = %.1f fm",ell); |
b6d061b7 | 1744 | l1a->AddEntry(h1,label,""); |
1745 | if(fMultSoft) { | |
7d62b2e2 | 1746 | snprintf(label, 100, "#hat{q} = %.1f GeV^{2}/fm",medvals[0]); |
b6d061b7 | 1747 | l1a->AddEntry(h1,label,"pl"); |
7d62b2e2 | 1748 | snprintf(label, 100, "#hat{q} = %.1f GeV^{2}/fm",medvals[1]); |
b6d061b7 | 1749 | l1a->AddEntry(h2,label,"pl"); |
7d62b2e2 | 1750 | snprintf(label, 100, "#hat{q} = %.1f GeV^{2}/fm",medvals[2]); |
1751 | l1a->AddEntry(h3, label,"pl"); | |
b6d061b7 | 1752 | } else { |
7d62b2e2 | 1753 | snprintf(label, 100, "#mu = %.1f GeV",medvals[0]); |
b6d061b7 | 1754 | l1a->AddEntry(h1,label,"pl"); |
7d62b2e2 | 1755 | snprintf(label, 100, "#mu = %.1f GeV",medvals[1]); |
b6d061b7 | 1756 | l1a->AddEntry(h2,label,"pl"); |
7d62b2e2 | 1757 | snprintf(label, 100, "#mu = %.1f GeV",medvals[2]); |
b6d061b7 | 1758 | l1a->AddEntry(h3,label,"pl"); |
1759 | } | |
1760 | l1a->Draw(); | |
1761 | ||
1762 | c->Update(); | |
1763 | } | |
1764 | ||
7258586f | 1765 | void AliQuenchingWeights::PlotContWeightsVsL(Int_t itype,Double_t medval) const |
b6d061b7 | 1766 | { |
7258586f | 1767 | // plot continous weights for |
1768 | // given parton type and medium value | |
7a76a12e | 1769 | |
b6d061b7 | 1770 | Char_t title[1024]; |
1771 | Char_t name[1024]; | |
1772 | if(fMultSoft) { | |
1773 | if(itype==1) | |
7d62b2e2 | 1774 | snprintf(title,1024, "Cont. Weight for Multiple Scattering - Quarks"); |
b6d061b7 | 1775 | else if(itype==2) |
7d62b2e2 | 1776 | snprintf(title,1024, "Cont. Weight for Multiple Scattering - Gluons"); |
b6d061b7 | 1777 | else return; |
7d62b2e2 | 1778 | snprintf(name,1024, "ccont2-ms-%d",itype); |
b6d061b7 | 1779 | } else { |
1780 | if(itype==1) | |
7d62b2e2 | 1781 | snprintf(title, 1024, "Cont. Weight for Single Hard Scattering - Quarks"); |
b6d061b7 | 1782 | else if(itype==2) |
7d62b2e2 | 1783 | snprintf(title, 1024, "Cont. Weight for Single Hard Scattering - Gluons"); |
b6d061b7 | 1784 | else return; |
7d62b2e2 | 1785 | snprintf(name, 1024, "ccont2-sh-%d",itype); |
b6d061b7 | 1786 | } |
1787 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1788 | c->cd(); | |
1789 | TH1F *h1=ComputeQWHisto(itype,medval,8); | |
1790 | h1->SetName("h1"); | |
1791 | h1->SetTitle(title); | |
1792 | h1->SetStats(0); | |
1793 | h1->SetLineColor(1); | |
1794 | h1->DrawCopy(); | |
1795 | TH1F *h2=ComputeQWHisto(itype,medval,5); | |
1796 | h2->SetName("h2"); | |
1797 | h2->SetLineColor(2); | |
1798 | h2->DrawCopy("SAME"); | |
1799 | TH1F *h3=ComputeQWHisto(itype,medval,2); | |
1800 | h3->SetName("h3"); | |
1801 | h3->SetLineColor(3); | |
1802 | h3->DrawCopy("SAME"); | |
1803 | ||
1804 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
1805 | l1a->SetFillStyle(0); | |
1806 | l1a->SetBorderSize(0); | |
1807 | Char_t label[100]; | |
1808 | if(fMultSoft) | |
7d62b2e2 | 1809 | snprintf(label, 100, "#hat{q} = %.1f GeV^{2}/fm",medval); |
b6d061b7 | 1810 | else |
7d62b2e2 | 1811 | snprintf(label, 100, "#mu = %.1f GeV",medval); |
b6d061b7 | 1812 | |
1813 | l1a->AddEntry(h1,label,""); | |
1814 | l1a->AddEntry(h1,"L = 8 fm","pl"); | |
1815 | l1a->AddEntry(h2,"L = 5 fm","pl"); | |
1816 | l1a->AddEntry(h3,"L = 2 fm","pl"); | |
1817 | l1a->Draw(); | |
1818 | ||
1819 | c->Update(); | |
1820 | } | |
1821 | ||
9175f0df | 1822 | void AliQuenchingWeights::PlotAvgELoss(Double_t len,Double_t qm,Double_t e) const |
b6d061b7 | 1823 | { |
7258586f | 1824 | // plot average energy loss for given length |
1825 | // and parton energy | |
7a76a12e | 1826 | |
b6d061b7 | 1827 | if(!fTablesLoaded){ |
7258586f | 1828 | Error("PlotAvgELoss","Tables are not loaded."); |
b6d061b7 | 1829 | return; |
1830 | } | |
1831 | ||
1832 | Char_t title[1024]; | |
1833 | Char_t name[1024]; | |
1834 | if(fMultSoft){ | |
7d62b2e2 | 1835 | snprintf(title, 1024, "Average Energy Loss for Multiple Scattering"); |
1836 | snprintf(name, 1024, "cavgelossms"); | |
b6d061b7 | 1837 | } else { |
7d62b2e2 | 1838 | snprintf(title, 1024, "Average Energy Loss for Single Hard Scattering"); |
1839 | snprintf(name, 1024, "cavgelosssh"); | |
b6d061b7 | 1840 | } |
1841 | ||
1842 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1843 | c->cd(); | |
9175f0df | 1844 | TH2F *hframe = new TH2F("avgloss","",2,0,qm+.1,2,0,100); |
b6d061b7 | 1845 | hframe->SetStats(0); |
1846 | if(fMultSoft) | |
1847 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1848 | else | |
1849 | hframe->SetXTitle("#mu [GeV]"); | |
1850 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1851 | hframe->Draw(); | |
1852 | ||
1853 | TGraph *gq=new TGraph(20); | |
1854 | Int_t i=0; | |
9175f0df | 1855 | for(Double_t v=0.05;v<=qm+.05;v+=0.25){ |
b6d061b7 | 1856 | TH1F *dummy=ComputeELossHisto(1,v,len,e); |
1857 | Double_t avgloss=dummy->GetMean(); | |
1858 | gq->SetPoint(i,v,avgloss);i++; | |
1859 | delete dummy; | |
1860 | } | |
9175f0df | 1861 | gq->SetMarkerStyle(21); |
b6d061b7 | 1862 | gq->Draw("pl"); |
1863 | ||
9175f0df | 1864 | Int_t points=(Int_t)qm*4; |
1865 | TGraph *gg=new TGraph(points); | |
b6d061b7 | 1866 | i=0; |
9175f0df | 1867 | for(Double_t v=0.05;v<=qm+.05;v+=0.25){ |
b6d061b7 | 1868 | TH1F *dummy=ComputeELossHisto(2,v,len,e); |
1869 | Double_t avgloss=dummy->GetMean(); | |
1870 | gg->SetPoint(i,v,avgloss);i++; | |
1871 | delete dummy; | |
1872 | } | |
9175f0df | 1873 | gg->SetMarkerStyle(20); |
1874 | gg->SetMarkerColor(2); | |
b6d061b7 | 1875 | gg->Draw("pl"); |
1876 | ||
9175f0df | 1877 | TGraph *gratio=new TGraph(points); |
599b2e92 | 1878 | for(i=0;i<points;i++){ |
7258586f | 1879 | Double_t x,y,x2,y2; |
1880 | gg->GetPoint(i,x,y); | |
1881 | gq->GetPoint(i,x2,y2); | |
1882 | if(y2>0) | |
1883 | gratio->SetPoint(i,x,y/y2*10/2.25); | |
1884 | else gratio->SetPoint(i,x,0); | |
1885 | } | |
1886 | gratio->SetLineStyle(4); | |
1887 | gratio->Draw(); | |
9175f0df | 1888 | TLegend *l1a = new TLegend(0.15,0.60,0.50,0.90); |
b6d061b7 | 1889 | l1a->SetFillStyle(0); |
1890 | l1a->SetBorderSize(0); | |
1891 | Char_t label[100]; | |
7d62b2e2 | 1892 | snprintf(label, 100, "L = %.1f fm",len); |
b6d061b7 | 1893 | l1a->AddEntry(gq,label,""); |
9175f0df | 1894 | l1a->AddEntry(gq,"quark projectile","pl"); |
1895 | l1a->AddEntry(gg,"gluon projectile","pl"); | |
7258586f | 1896 | l1a->AddEntry(gratio,"gluon/quark/2.25*10","pl"); |
b6d061b7 | 1897 | l1a->Draw(); |
1898 | ||
1899 | c->Update(); | |
1900 | } | |
1901 | ||
e99e3ed5 | 1902 | void AliQuenchingWeights::PlotAvgELoss(TH1F *hEll,Double_t e) const |
b6d061b7 | 1903 | { |
7258586f | 1904 | // plot average energy loss for given |
1905 | // length distribution and parton energy | |
7a76a12e | 1906 | |
b6d061b7 | 1907 | if(!fTablesLoaded){ |
7258586f | 1908 | Error("PlotAvgELossVs","Tables are not loaded."); |
b6d061b7 | 1909 | return; |
1910 | } | |
1911 | ||
1912 | Char_t title[1024]; | |
1913 | Char_t name[1024]; | |
1914 | if(fMultSoft){ | |
7d62b2e2 | 1915 | snprintf(title, 1024, "Average Energy Loss for Multiple Scattering"); |
1916 | snprintf(name, 1024, "cavgelossms2"); | |
b6d061b7 | 1917 | } else { |
7d62b2e2 | 1918 | snprintf(title, 1024, "Average Energy Loss for Single Hard Scattering"); |
1919 | snprintf(name, 1024, "cavgelosssh2"); | |
b6d061b7 | 1920 | } |
1921 | ||
1922 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
1923 | c->cd(); | |
1924 | TH2F *hframe = new TH2F("havgloss",title,2,0,5.1,2,0,100); | |
1925 | hframe->SetStats(0); | |
1926 | if(fMultSoft) | |
1927 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); | |
1928 | else | |
1929 | hframe->SetXTitle("#mu [GeV]"); | |
1930 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
1931 | hframe->Draw(); | |
1932 | ||
1933 | TGraph *gq=new TGraph(20); | |
1934 | Int_t i=0; | |
1935 | for(Double_t v=0.05;v<=5.05;v+=0.25){ | |
1936 | TH1F *dummy=ComputeELossHisto(1,v,hEll,e); | |
1937 | Double_t avgloss=dummy->GetMean(); | |
1938 | gq->SetPoint(i,v,avgloss);i++; | |
1939 | delete dummy; | |
1940 | } | |
1941 | gq->SetMarkerStyle(20); | |
1942 | gq->Draw("pl"); | |
1943 | ||
1944 | TGraph *gg=new TGraph(20); | |
1945 | i=0; | |
1946 | for(Double_t v=0.05;v<=5.05;v+=0.25){ | |
1947 | TH1F *dummy=ComputeELossHisto(2,v,hEll,e); | |
1948 | Double_t avgloss=dummy->GetMean(); | |
1949 | gg->SetPoint(i,v,avgloss);i++; | |
1950 | delete dummy; | |
1951 | } | |
1952 | gg->SetMarkerStyle(24); | |
1953 | gg->Draw("pl"); | |
1954 | ||
7258586f | 1955 | TGraph *gratio=new TGraph(20); |
7e7b00ac | 1956 | for(i=0;i<20;i++){ |
7258586f | 1957 | Double_t x,y,x2,y2; |
1958 | gg->GetPoint(i,x,y); | |
1959 | gq->GetPoint(i,x2,y2); | |
1960 | if(y2>0) | |
1961 | gratio->SetPoint(i,x,y/y2*10/2.25); | |
1962 | else gratio->SetPoint(i,x,0); | |
1963 | } | |
1964 | gratio->SetLineStyle(4); | |
9175f0df | 1965 | //gratio->Draw(); |
7258586f | 1966 | |
b6d061b7 | 1967 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
1968 | l1a->SetFillStyle(0); | |
1969 | l1a->SetBorderSize(0); | |
1970 | Char_t label[100]; | |
7d62b2e2 | 1971 | snprintf(label, 100, "<L> = %.2f fm",hEll->GetMean()); |
b6d061b7 | 1972 | l1a->AddEntry(gq,label,""); |
1973 | l1a->AddEntry(gq,"quark","pl"); | |
1974 | l1a->AddEntry(gg,"gluon","pl"); | |
9175f0df | 1975 | //l1a->AddEntry(gratio,"gluon/quark/2.25*10","pl"); |
b6d061b7 | 1976 | l1a->Draw(); |
1977 | ||
1978 | c->Update(); | |
1979 | } | |
1980 | ||
9d851d20 | 1981 | void AliQuenchingWeights::PlotAvgELossVsL(Double_t e) const |
b6d061b7 | 1982 | { |
7258586f | 1983 | // plot average energy loss versus ell |
7a76a12e | 1984 | |
b6d061b7 | 1985 | if(!fTablesLoaded){ |
7258586f | 1986 | Error("PlotAvgELossVsEll","Tables are not loaded."); |
1987 | return; | |
1988 | } | |
1989 | ||
1990 | Char_t title[1024]; | |
1991 | Char_t name[1024]; | |
1992 | Float_t medval; | |
1993 | if(fMultSoft){ | |
7d62b2e2 | 1994 | snprintf(title, 1024, "Average Energy Loss for Multiple Scattering"); |
1995 | snprintf(name, 1024, "cavgelosslms"); | |
7258586f | 1996 | medval=fQTransport; |
1997 | } else { | |
7d62b2e2 | 1998 | snprintf(title, 1024, "Average Energy Loss for Single Hard Scattering"); |
1999 | snprintf(name, 1024, "cavgelosslsh"); | |
7258586f | 2000 | medval=fMu; |
2001 | } | |
2002 | ||
2003 | TCanvas *c = new TCanvas(name,title,0,0,600,400); | |
2004 | c->cd(); | |
2005 | TH2F *hframe = new TH2F("avglossell",title,2,0,fLengthMax,2,0,250); | |
2006 | hframe->SetStats(0); | |
2007 | hframe->SetXTitle("length [fm]"); | |
2008 | hframe->SetYTitle("<E_{loss}> [GeV]"); | |
2009 | hframe->Draw(); | |
2010 | ||
2011 | TGraph *gq=new TGraph((Int_t)fLengthMax*4); | |
2012 | Int_t i=0; | |
2013 | for(Double_t v=0.25;v<=fLengthMax;v+=0.25){ | |
2014 | TH1F *dummy=ComputeELossHisto(1,medval,v,e); | |
2015 | Double_t avgloss=dummy->GetMean(); | |
2016 | gq->SetPoint(i,v,avgloss);i++; | |
2017 | delete dummy; | |
2018 | } | |
2019 | gq->SetMarkerStyle(20); | |
2020 | gq->Draw("pl"); | |
2021 | ||
2022 | TGraph *gg=new TGraph((Int_t)fLengthMax*4); | |
2023 | i=0; | |
2024 | for(Double_t v=0.25;v<=fLengthMax;v+=0.25){ | |
2025 | TH1F *dummy=ComputeELossHisto(2,medval,v,e); | |
2026 | Double_t avgloss=dummy->GetMean(); | |
2027 | gg->SetPoint(i,v,avgloss);i++; | |
2028 | delete dummy; | |
2029 | } | |
2030 | gg->SetMarkerStyle(24); | |
2031 | gg->Draw("pl"); | |
2032 | ||
2033 | TGraph *gratio=new TGraph((Int_t)fLengthMax*4); | |
7e7b00ac | 2034 | for(i=0;i<=(Int_t)fLengthMax*4;i++){ |
7258586f | 2035 | Double_t x,y,x2,y2; |
2036 | gg->GetPoint(i,x,y); | |
2037 | gq->GetPoint(i,x2,y2); | |
2038 | if(y2>0) | |
2039 | gratio->SetPoint(i,x,y/y2*100/2.25); | |
2040 | else gratio->SetPoint(i,x,0); | |
2041 | } | |
2042 | gratio->SetLineStyle(1); | |
2043 | gratio->SetLineWidth(2); | |
2044 | gratio->Draw(); | |
2045 | TLegend *l1a = new TLegend(0.15,0.65,.60,0.85); | |
2046 | l1a->SetFillStyle(0); | |
2047 | l1a->SetBorderSize(0); | |
2048 | Char_t label[100]; | |
2049 | if(fMultSoft) | |
7d62b2e2 | 2050 | snprintf(label, 100, "#hat{q} = %.2f GeV^{2}/fm",medval); |
7258586f | 2051 | else |
7d62b2e2 | 2052 | snprintf(label, 100, "#mu = %.2f GeV",medval); |
7258586f | 2053 | l1a->AddEntry(gq,label,""); |
2054 | l1a->AddEntry(gq,"quark","pl"); | |
2055 | l1a->AddEntry(gg,"gluon","pl"); | |
2056 | l1a->AddEntry(gratio,"gluon/quark/2.25*100","pl"); | |
2057 | l1a->Draw(); | |
2058 | ||
2059 | TF1 *f=new TF1("f","100",0,fLengthMax); | |
2060 | f->SetLineStyle(4); | |
2061 | f->SetLineWidth(1); | |
2062 | f->Draw("same"); | |
2063 | c->Update(); | |
2064 | } | |
2065 | ||
2066 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,Double_t len) const | |
2067 | { | |
2068 | // plot relative energy loss for given | |
2069 | // length and parton energy versus pt | |
2070 | ||
2071 | if(!fTablesLoaded){ | |
2072 | Error("PlotAvgELossVsPt","Tables are not loaded."); | |
b6d061b7 | 2073 | return; |
2074 | } | |
2075 | ||
2076 | Char_t title[1024]; | |
2077 | Char_t name[1024]; | |
2078 | if(fMultSoft){ | |
7d62b2e2 | 2079 | snprintf(title, 1024, "Relative Energy Loss for Multiple Scattering"); |
2080 | snprintf(name, 1024, "cavgelossvsptms"); | |
b6d061b7 | 2081 | } else { |
7d62b2e2 | 2082 | snprintf(title, 1024, "Relative Energy Loss for Single Hard Scattering"); |
2083 | snprintf(name, 1024, "cavgelossvsptsh"); | |
b6d061b7 | 2084 | } |
2085 | ||
2086 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
2087 | c->cd(); | |
2088 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); | |
2089 | hframe->SetStats(0); | |
2090 | hframe->SetXTitle("p_{T} [GeV]"); | |
2091 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); | |
2092 | hframe->Draw(); | |
2093 | ||
2094 | TGraph *gq=new TGraph(40); | |
2095 | Int_t i=0; | |
2096 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2097 | TH1F *dummy=ComputeELossHisto(1,medval,len,pt); | |
2098 | Double_t avgloss=dummy->GetMean(); | |
2099 | gq->SetPoint(i,pt,avgloss/pt);i++; | |
2100 | delete dummy; | |
2101 | } | |
2102 | gq->SetMarkerStyle(20); | |
2103 | gq->Draw("pl"); | |
2104 | ||
2105 | TGraph *gg=new TGraph(40); | |
2106 | i=0; | |
2107 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2108 | TH1F *dummy=ComputeELossHisto(2,medval,len,pt); | |
2109 | Double_t avgloss=dummy->GetMean(); | |
2110 | gg->SetPoint(i,pt,avgloss/pt);i++; | |
2111 | delete dummy; | |
2112 | } | |
2113 | gg->SetMarkerStyle(24); | |
2114 | gg->Draw("pl"); | |
2115 | ||
2116 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
2117 | l1a->SetFillStyle(0); | |
2118 | l1a->SetBorderSize(0); | |
2119 | Char_t label[100]; | |
7d62b2e2 | 2120 | snprintf(label, 100, "L = %.1f fm",len); |
b6d061b7 | 2121 | l1a->AddEntry(gq,label,""); |
2122 | l1a->AddEntry(gq,"quark","pl"); | |
2123 | l1a->AddEntry(gg,"gluon","pl"); | |
2124 | l1a->Draw(); | |
2125 | ||
2126 | c->Update(); | |
2127 | } | |
2128 | ||
2129 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,TH1F *hEll) const | |
2130 | { | |
7258586f | 2131 | // plot relative energy loss for given |
2132 | // length distribution and parton energy versus pt | |
7a76a12e | 2133 | |
b6d061b7 | 2134 | if(!fTablesLoaded){ |
7258586f | 2135 | Error("PlotAvgELossVsPt","Tables are not loaded."); |
b6d061b7 | 2136 | return; |
2137 | } | |
2138 | ||
2139 | Char_t title[1024]; | |
2140 | Char_t name[1024]; | |
2141 | if(fMultSoft){ | |
7d62b2e2 | 2142 | snprintf(title, 1024, "Relative Energy Loss for Multiple Scattering"); |
2143 | snprintf(name, 1024, "cavgelossvsptms2"); | |
b6d061b7 | 2144 | } else { |
7d62b2e2 | 2145 | snprintf(title, 1024, "Relative Energy Loss for Single Hard Scattering"); |
2146 | snprintf(name, 1024, "cavgelossvsptsh2"); | |
b6d061b7 | 2147 | } |
2148 | TCanvas *c = new TCanvas(name,title,0,0,500,400); | |
2149 | c->cd(); | |
2150 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); | |
2151 | hframe->SetStats(0); | |
2152 | hframe->SetXTitle("p_{T} [GeV]"); | |
2153 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); | |
2154 | hframe->Draw(); | |
2155 | ||
2156 | TGraph *gq=new TGraph(40); | |
2157 | Int_t i=0; | |
2158 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2159 | TH1F *dummy=ComputeELossHisto(1,medval,hEll,pt); | |
2160 | Double_t avgloss=dummy->GetMean(); | |
2161 | gq->SetPoint(i,pt,avgloss/pt);i++; | |
2162 | delete dummy; | |
2163 | } | |
2164 | gq->SetMarkerStyle(20); | |
2165 | gq->Draw("pl"); | |
2166 | ||
2167 | TGraph *gg=new TGraph(40); | |
2168 | i=0; | |
2169 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ | |
2170 | TH1F *dummy=ComputeELossHisto(2,medval,hEll,pt); | |
2171 | Double_t avgloss=dummy->GetMean(); | |
2172 | gg->SetPoint(i,pt,avgloss/pt);i++; | |
2173 | delete dummy; | |
2174 | } | |
2175 | gg->SetMarkerStyle(24); | |
2176 | gg->Draw("pl"); | |
2177 | ||
2178 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); | |
2179 | l1a->SetFillStyle(0); | |
2180 | l1a->SetBorderSize(0); | |
2181 | Char_t label[100]; | |
7d62b2e2 | 2182 | snprintf(label, 100, "<L> = %.2f fm",hEll->GetMean()); |
b6d061b7 | 2183 | l1a->AddEntry(gq,label,""); |
2184 | l1a->AddEntry(gq,"quark","pl"); | |
2185 | l1a->AddEntry(gg,"gluon","pl"); | |
2186 | l1a->Draw(); | |
2187 | ||
2188 | c->Update(); | |
2189 | } | |
2190 | ||
7258586f | 2191 | Int_t AliQuenchingWeights::GetIndex(Double_t len) const |
2192 | { | |
b90de01a | 2193 | //get the index according to length |
7258586f | 2194 | if(len>fLengthMax) len=fLengthMax; |
2195 | ||
9d851d20 | 2196 | Int_t l=Int_t(len/0.25); |
cc885e36 | 2197 | if((len-l*0.25)>0.125) l++; |
7258586f | 2198 | return l; |
2199 | } | |
ea16e52f | 2200 |