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