| 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 | // |
| 26 | // Origin: C. Loizides constantinos.loizides@cern.ch |
| 27 | // A. Dainese andrea.dainese@pd.infn.it |
| 28 | //---------------------------------------------------------------------------- |
| 29 | |
| 30 | #include <Riostream.h> |
| 31 | #include <TH1F.h> |
| 32 | #include <TH2F.h> |
| 33 | #include <TCanvas.h> |
| 34 | #include <TGraph.h> |
| 35 | #include <TROOT.h> |
| 36 | #include <TSystem.h> |
| 37 | #include <TLegend.h> |
| 38 | #include "AliQuenchingWeights.h" |
| 39 | |
| 40 | ClassImp(AliQuenchingWeights) |
| 41 | |
| 42 | // conversion from fm to GeV^-1: 1 fm = fmGeV GeV^-1 |
| 43 | const Double_t AliQuenchingWeights::gkConvFmToInvGeV = 1./0.197; |
| 44 | |
| 45 | // maximum value of R |
| 46 | const Double_t AliQuenchingWeights::gkRMax = 40000.; |
| 47 | |
| 48 | // counter for histogram labels |
| 49 | Int_t AliQuenchingWeights::gCounter = 0; |
| 50 | |
| 51 | AliQuenchingWeights::AliQuenchingWeights() |
| 52 | : TObject() |
| 53 | { |
| 54 | fTablesLoaded=kFALSE; |
| 55 | fMultSoft=kTRUE; |
| 56 | fHistos=0; |
| 57 | SetMu(); |
| 58 | SetQTransport(); |
| 59 | SetECMethod(); |
| 60 | SetLengthMax(); |
| 61 | fLengthMaxOld=0; |
| 62 | fInstanceNumber=gCounter++; |
| 63 | } |
| 64 | |
| 65 | AliQuenchingWeights::AliQuenchingWeights(const AliQuenchingWeights& a) |
| 66 | : TObject() |
| 67 | { |
| 68 | fTablesLoaded=kFALSE; |
| 69 | fHistos=0; |
| 70 | fLengthMaxOld=0; |
| 71 | fMultSoft=a.GetMultSoft();; |
| 72 | fMu=a.GetMu(); |
| 73 | fQTransport=a.GetQTransport(); |
| 74 | fECMethod=(kECMethod)a.GetECMethod(); |
| 75 | fLengthMax=a.GetLengthMax(); |
| 76 | fInstanceNumber=gCounter++; |
| 77 | //Missing in the class is the pathname |
| 78 | //to the tables, can be added if needed |
| 79 | } |
| 80 | |
| 81 | AliQuenchingWeights::~AliQuenchingWeights() |
| 82 | { |
| 83 | Reset(); |
| 84 | } |
| 85 | |
| 86 | void AliQuenchingWeights::Reset() |
| 87 | { |
| 88 | if(!fHistos) return; |
| 89 | for(Int_t l=0;l<fLengthMaxOld;l++){ |
| 90 | delete fHistos[0][l]; |
| 91 | delete fHistos[1][l]; |
| 92 | } |
| 93 | delete[] fHistos; |
| 94 | fHistos=0; |
| 95 | fLengthMaxOld=0; |
| 96 | } |
| 97 | |
| 98 | void AliQuenchingWeights::SetECMethod(kECMethod type) |
| 99 | { |
| 100 | fECMethod=type; |
| 101 | if(fECMethod==kDefault) |
| 102 | Info("SetECMethod","Energy Constraint Method set to DEFAULT:\nIf (sampled energy loss > parton energy) then sampled energy loss = parton energy."); |
| 103 | else |
| 104 | Info("SetECMethod","Energy Constraint Method set to REWEIGHT:\nRequire sampled energy loss <= parton energy."); |
| 105 | } |
| 106 | |
| 107 | Int_t AliQuenchingWeights::InitMult(const Char_t *contall,const Char_t *discall) |
| 108 | { |
| 109 | // read in tables for multiple scattering approximation |
| 110 | // path to continuum and to discrete part |
| 111 | |
| 112 | fTablesLoaded = kFALSE; |
| 113 | fMultSoft=kTRUE; |
| 114 | |
| 115 | Char_t fname[1024]; |
| 116 | sprintf(fname,"%s",gSystem->ExpandPathName(contall)); |
| bb545331 |
117 | //PH ifstream fincont(fname); |
| 118 | fstream fincont(fname,ios::in); |
| 119 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 120 | if(!fincont.rdbuf()->is_open()) return -1; |
| 121 | #else |
| b6d061b7 |
122 | if(!fincont.is_open()) return -1; |
| bb545331 |
123 | #endif |
| b6d061b7 |
124 | |
| 125 | Int_t nn=0; //quarks |
| 126 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> |
| 127 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> |
| 128 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>> |
| 129 | fcaq[13][nn]>> |
| 130 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>> |
| 131 | fcaq[18][nn]>> |
| 132 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>> |
| 133 | fcaq[23][nn]>> |
| 134 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>> |
| 135 | fcaq[28][nn]>> |
| 136 | fcaq[29][nn]) |
| 137 | { |
| 138 | nn++; |
| 139 | if(nn==261) break; |
| 140 | } |
| 141 | |
| 142 | nn=0; //gluons |
| 143 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> |
| 144 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> |
| 145 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>> |
| 146 | fcag[13][nn]>> |
| 147 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>> |
| 148 | fcag[18][nn]>> |
| 149 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>> |
| 150 | fcag[23][nn]>> |
| 151 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>> |
| 152 | fcag[28][nn]>> |
| 153 | fcag[29][nn]) { |
| 154 | nn++; |
| 155 | if(nn==261) break; |
| 156 | } |
| 157 | fincont.close(); |
| 158 | |
| 159 | sprintf(fname,"%s",gSystem->ExpandPathName(discall)); |
| bb545331 |
160 | //PH ifstream findisc(fname); |
| 161 | fstream findisc(fname,ios::in); |
| 162 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 163 | if(!findisc.rdbuf()->is_open()) return -1; |
| 164 | #else |
| b6d061b7 |
165 | if(!findisc.is_open()) return -1; |
| bb545331 |
166 | #endif |
| b6d061b7 |
167 | |
| 168 | nn=0; //quarks |
| 169 | while(findisc>>frrr[nn]>>fdaq[nn]) { |
| 170 | nn++; |
| 171 | if(nn==30) break; |
| 172 | } |
| 173 | nn=0; //gluons |
| 174 | while(findisc>>frrrg[nn]>>fdag[nn]) { |
| 175 | nn++; |
| 176 | if(nn==30) break; |
| 177 | } |
| 178 | findisc.close(); |
| 179 | fTablesLoaded = kTRUE; |
| 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | /* |
| 184 | C*************************************************************************** |
| 185 | C Quenching Weights for Multiple Soft Scattering |
| 186 | C February 10, 2003 |
| 187 | C |
| 188 | C Refs: |
| 189 | C |
| 190 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. |
| 191 | C |
| 192 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. |
| 193 | C |
| 194 | C |
| 195 | C This package contains quenching weights for gluon radiation in the |
| 196 | C multiple soft scattering approximation. |
| 197 | C |
| 198 | C swqmult returns the quenching weight for a quark (ipart=1) or |
| 199 | C a gluon (ipart=2) traversing a medium with transport coeficient q and |
| 200 | C length L. The input values are rrrr=0.5*q*L^3 and xxxx=w/wc, where |
| 201 | C wc=0.5*q*L^2 and w is the energy radiated. The output values are |
| 202 | C the continuous and discrete (prefactor of the delta function) parts |
| 203 | C of the quenching weights. |
| 204 | C |
| 205 | C In order to use this routine, the files cont.all and disc.all need to be |
| 206 | C in the working directory. |
| 207 | C |
| 208 | C An initialization of the tables is needed by doing call initmult before |
| 209 | C using swqmult. |
| 210 | C |
| 211 | C Please, send us any comment: |
| 212 | C |
| 213 | C urs.wiedemann@cern.ch |
| 214 | C carlos.salgado@cern.ch |
| 215 | C |
| 216 | C |
| 217 | C------------------------------------------------------------------- |
| 218 | |
| 219 | SUBROUTINE swqmult(ipart,rrrr,xxxx,continuous,discrete) |
| 220 | * |
| 221 | REAL*8 xx(400), daq(30), caq(30,261), rrr(30) |
| 222 | COMMON /dataqua/ xx, daq, caq, rrr |
| 223 | * |
| 224 | REAL*8 xxg(400), dag(30), cag(30,261), rrrg(30) |
| 225 | COMMON /dataglu/ xxg, dag, cag, rrrg |
| 226 | |
| 227 | REAL*8 rrrr,xxxx, continuous, discrete |
| 228 | REAL*8 rrin, xxin |
| 229 | INTEGER nrlow, nrhigh, nxlow, nxhigh |
| 230 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh |
| 231 | REAL*8 xfraclow, xfrachigh |
| 232 | REAL*8 clow, chigh |
| 233 | * |
| 234 | rrin = rrrr |
| 235 | xxin = xxxx |
| 236 | * |
| 237 | nxlow = int(xxin/0.005) + 1 |
| 238 | nxhigh = nxlow + 1 |
| 239 | xfraclow = (xx(nxhigh)-xxin)/0.005 |
| 240 | xfrachigh = (xxin - xx(nxlow))/0.005 |
| 241 | * |
| 242 | do 666, nr=1,30 |
| 243 | if (rrin.lt.rrr(nr)) then |
| 244 | rrhigh = rrr(nr) |
| 245 | else |
| 246 | rrhigh = rrr(nr-1) |
| 247 | rrlow = rrr(nr) |
| 248 | nrlow = nr |
| 249 | nrhigh = nr-1 |
| 250 | goto 665 |
| 251 | endif |
| 252 | 666 enddo |
| 253 | 665 continue |
| 254 | * |
| 255 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) |
| 256 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) |
| 257 | * |
| 258 | if(ipart.eq.1) then |
| 259 | clow = xfraclow*caq(nrlow,nxlow)+xfrachigh*caq(nrlow,nxhigh) |
| 260 | chigh = xfraclow*caq(nrhigh,nxlow)+xfrachigh*caq(nrhigh,nxhigh) |
| 261 | else |
| 262 | clow = xfraclow*cag(nrlow,nxlow)+xfrachigh*cag(nrlow,nxhigh) |
| 263 | chigh = xfraclow*cag(nrhigh,nxlow)+xfrachigh*cag(nrhigh,nxhigh) |
| 264 | endif |
| 265 | |
| 266 | continuous = rfraclow*clow + rfrachigh*chigh |
| 267 | |
| 268 | if(ipart.eq.1) then |
| 269 | discrete = rfraclow*daq(nrlow) + rfrachigh*daq(nrhigh) |
| 270 | else |
| 271 | discrete = rfraclow*dag(nrlow) + rfrachigh*dag(nrhigh) |
| 272 | endif |
| 273 | * |
| 274 | END |
| 275 | |
| 276 | subroutine initmult |
| 277 | REAL*8 xxq(400), daq(30), caq(30,261), rrr(30) |
| 278 | COMMON /dataqua/ xxq, daq, caq, rrr |
| 279 | * |
| 280 | REAL*8 xxg(400), dag(30), cag(30,261), rrrg(30) |
| 281 | COMMON /dataglu/ xxg, dag, cag, rrrg |
| 282 | * |
| 283 | OPEN(UNIT=20,FILE='cont.all',STATUS='OLD',ERR=90) |
| 284 | do 110 nn=1,261 |
| 285 | read (20,*) xxq(nn), caq(1,nn), caq(2,nn), caq(3,nn), |
| 286 | + caq(4,nn), caq(5,nn), caq(6,nn), caq(7,nn), caq(8,nn), |
| 287 | + caq(9,nn), caq(10,nn), caq(11,nn), caq(12,nn), |
| 288 | + caq(13,nn), |
| 289 | + caq(14,nn), caq(15,nn), caq(16,nn), caq(17,nn), |
| 290 | + caq(18,nn), |
| 291 | + caq(19,nn), caq(20,nn), caq(21,nn), caq(22,nn), |
| 292 | + caq(23,nn), |
| 293 | + caq(24,nn), caq(25,nn), caq(26,nn), caq(27,nn), |
| 294 | + caq(28,nn), |
| 295 | + caq(29,nn), caq(30,nn) |
| 296 | 110 continue |
| 297 | do 111 nn=1,261 |
| 298 | read (20,*) xxg(nn), cag(1,nn), cag(2,nn), cag(3,nn), |
| 299 | + cag(4,nn), cag(5,nn), cag(6,nn), cag(7,nn), cag(8,nn), |
| 300 | + cag(9,nn), cag(10,nn), cag(11,nn), cag(12,nn), |
| 301 | + cag(13,nn), |
| 302 | + cag(14,nn), cag(15,nn), cag(16,nn), cag(17,nn), |
| 303 | + cag(18,nn), |
| 304 | + cag(19,nn), cag(20,nn), cag(21,nn), cag(22,nn), |
| 305 | + cag(23,nn), |
| 306 | + cag(24,nn), cag(25,nn), cag(26,nn), cag(27,nn), |
| 307 | + cag(28,nn), |
| 308 | + cag(29,nn), cag(30,nn) |
| 309 | 111 continue |
| 310 | close(20) |
| 311 | * |
| 312 | OPEN(UNIT=21,FILE='disc.all',STATUS='OLD',ERR=91) |
| 313 | do 112 nn=1,30 |
| 314 | read (21,*) rrr(nn), daq(nn) |
| 315 | 112 continue |
| 316 | do 113 nn=1,30 |
| 317 | read (21,*) rrrg(nn), dag(nn) |
| 318 | 113 continue |
| 319 | close(21) |
| 320 | * |
| 321 | goto 888 |
| 322 | 90 PRINT*, 'input - output error' |
| 323 | 91 PRINT*, 'input - output error #2' |
| 324 | 888 continue |
| 325 | |
| 326 | end |
| 327 | |
| 328 | ======================================================================= |
| 329 | |
| 330 | Adapted to ROOT macro by A. Dainese - 13/07/2003 |
| 331 | ported to class by C. Loizides - 12/02/2004 |
| 332 | */ |
| 333 | |
| 334 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, Double_t rrrr,Double_t xxxx, |
| 335 | Double_t &continuous,Double_t &discrete) const |
| 336 | { |
| 337 | // Calculate Multiple Scattering approx. |
| 338 | // weights for given parton type, |
| 339 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 |
| 340 | |
| 341 | // read-in data before first call |
| 342 | if(!fTablesLoaded){ |
| 343 | Error("CalcMult","Tables are not loaded."); |
| 344 | return -1; |
| 345 | } |
| 346 | if(!fMultSoft){ |
| 347 | Error("CalcMult","Tables are not loaded for Multiple Scattering."); |
| 348 | return -1; |
| 349 | } |
| 350 | |
| 351 | Double_t rrin = rrrr; |
| 352 | Double_t xxin = xxxx; |
| 353 | |
| 354 | Int_t nxlow = (Int_t)(xxin/0.01) + 1; |
| 355 | Int_t nxhigh = nxlow + 1; |
| 356 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.01; |
| 357 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.01; |
| 358 | |
| 359 | //why this? |
| 360 | if(rrin<=frrr[29]) rrin = 1.05*frrr[29]; // AD |
| 361 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
| 362 | |
| 363 | Int_t nrlow=0,nrhigh=0; |
| 364 | Double_t rrhigh=0,rrlow=0; |
| 365 | for(Int_t nr=1; nr<=30; nr++) { |
| 366 | if(rrin<frrr[nr-1]) { |
| 367 | rrhigh = frrr[nr-1]; |
| 368 | } else { |
| 369 | rrhigh = frrr[nr-1-1]; |
| 370 | rrlow = frrr[nr-1]; |
| 371 | nrlow = nr; |
| 372 | nrhigh = nr-1; |
| 373 | break; |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | rrin = rrrr; // AD |
| 378 | |
| 379 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); |
| 380 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); |
| 381 | |
| 382 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
| 383 | |
| 384 | Double_t clow=0,chigh=0; |
| 385 | if(ipart==1) { |
| 386 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; |
| 387 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; |
| 388 | } else { |
| 389 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; |
| 390 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; |
| 391 | } |
| 392 | |
| 393 | continuous = rfraclow*clow + rfrachigh*chigh; |
| 394 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", |
| 395 | // rfraclow,clow,rfrachigh,chigh,continuous); |
| 396 | |
| 397 | if(ipart==1) { |
| 398 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; |
| 399 | } else { |
| 400 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; |
| 401 | } |
| 402 | |
| 403 | return 0; |
| 404 | } |
| 405 | |
| 406 | Int_t AliQuenchingWeights::InitSingleHard(const Char_t *contall,const Char_t *discall) |
| 407 | { |
| 408 | // read in tables for Single Hard Approx. |
| 409 | // path to continuum and to discrete part |
| 410 | |
| 411 | fTablesLoaded = kFALSE; |
| 412 | fMultSoft=kFALSE; |
| 413 | |
| 414 | Char_t fname[1024]; |
| 415 | sprintf(fname,"%s",gSystem->ExpandPathName(contall)); |
| bb545331 |
416 | //PH ifstream fincont(fname); |
| 417 | fstream fincont(fname,ios::in); |
| 418 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 419 | if(!fincont.rdbuf()->is_open()) return -1; |
| 420 | #else |
| b6d061b7 |
421 | if(!fincont.is_open()) return -1; |
| bb545331 |
422 | #endif |
| b6d061b7 |
423 | |
| 424 | Int_t nn=0; //quarks |
| 425 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> |
| 426 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> |
| 427 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>> |
| 428 | fcaq[13][nn]>> |
| 429 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>> |
| 430 | fcaq[18][nn]>> |
| 431 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>> |
| 432 | fcaq[23][nn]>> |
| 433 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>> |
| 434 | fcaq[28][nn]>> |
| 435 | fcaq[29][nn]) |
| 436 | { |
| 437 | nn++; |
| 438 | if(nn==261) break; |
| 439 | } |
| 440 | |
| 441 | nn=0; //gluons |
| 442 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> |
| 443 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> |
| 444 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>> |
| 445 | fcag[13][nn]>> |
| 446 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>> |
| 447 | fcag[18][nn]>> |
| 448 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>> |
| 449 | fcag[23][nn]>> |
| 450 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>> |
| 451 | fcag[28][nn]>> |
| 452 | fcag[29][nn]) { |
| 453 | nn++; |
| 454 | if(nn==261) break; |
| 455 | } |
| 456 | fincont.close(); |
| 457 | |
| 458 | sprintf(fname,"%s",gSystem->ExpandPathName(discall)); |
| bb545331 |
459 | //PH ifstream findisc(fname); |
| 460 | fstream findisc(fname,ios::in); |
| 461 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 462 | if(!findisc.rdbuf()->is_open()) return -1; |
| 463 | #else |
| b6d061b7 |
464 | if(!findisc.is_open()) return -1; |
| bb545331 |
465 | #endif |
| b6d061b7 |
466 | |
| 467 | nn=0; //quarks |
| 468 | while(findisc>>frrr[nn]>>fdaq[nn]) { |
| 469 | nn++; |
| 470 | if(nn==30) break; |
| 471 | } |
| 472 | nn=0; //gluons |
| 473 | while(findisc>>frrrg[nn]>>fdag[nn]) { |
| 474 | nn++; |
| 475 | if(nn==30) break; |
| 476 | } |
| 477 | findisc.close(); |
| 478 | |
| 479 | fTablesLoaded = kTRUE; |
| 480 | return 0; |
| 481 | } |
| 482 | |
| 483 | /* |
| 484 | C*************************************************************************** |
| 485 | C Quenching Weights for Single Hard Scattering |
| 486 | C February 20, 2003 |
| 487 | C |
| 488 | C Refs: |
| 489 | C |
| 490 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. |
| 491 | C |
| 492 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. |
| 493 | C |
| 494 | C |
| 495 | C This package contains quenching weights for gluon radiation in the |
| 496 | C single hard scattering approximation. |
| 497 | C |
| 498 | C swqlin returns the quenching weight for a quark (ipart=1) or |
| 499 | C a gluon (ipart=2) traversing a medium with Debye screening mass mu and |
| 500 | C length L. The input values are rrrr=0.5*mu^2*L^2 and xxxx=w/wc, where |
| 501 | C wc=0.5*mu^2*L and w is the energy radiated. The output values are |
| 502 | C the continuous and discrete (prefactor of the delta function) parts |
| 503 | C of the quenching weights. |
| 504 | C |
| 505 | C In order to use this routine, the files contlin.all and disclin.all |
| 506 | C need to be in the working directory. |
| 507 | C |
| 508 | C An initialization of the tables is needed by doing call initlin before |
| 509 | C using swqlin. |
| 510 | C |
| 511 | C Please, send us any comment: |
| 512 | C |
| 513 | C urs.wiedemann@cern.ch |
| 514 | C carlos.salgado@cern.ch |
| 515 | C |
| 516 | C |
| 517 | C------------------------------------------------------------------- |
| 518 | |
| 519 | |
| 520 | SUBROUTINE swqlin(ipart,rrrr,xxxx,continuous,discrete) |
| 521 | * |
| 522 | REAL*8 xx(400), dalq(30), calq(30,261), rrr(30) |
| 523 | COMMON /datalinqua/ xx, dalq, calq, rrr |
| 524 | * |
| 525 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) |
| 526 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg |
| 527 | |
| 528 | REAL*8 rrrr,xxxx, continuous, discrete |
| 529 | REAL*8 rrin, xxin |
| 530 | INTEGER nrlow, nrhigh, nxlow, nxhigh |
| 531 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh |
| 532 | REAL*8 xfraclow, xfrachigh |
| 533 | REAL*8 clow, chigh |
| 534 | * |
| 535 | rrin = rrrr |
| 536 | xxin = xxxx |
| 537 | * |
| 538 | nxlow = int(xxin/0.038) + 1 |
| 539 | nxhigh = nxlow + 1 |
| 540 | xfraclow = (xx(nxhigh)-xxin)/0.038 |
| 541 | xfrachigh = (xxin - xx(nxlow))/0.038 |
| 542 | * |
| 543 | do 666, nr=1,30 |
| 544 | if (rrin.lt.rrr(nr)) then |
| 545 | rrhigh = rrr(nr) |
| 546 | else |
| 547 | rrhigh = rrr(nr-1) |
| 548 | rrlow = rrr(nr) |
| 549 | nrlow = nr |
| 550 | nrhigh = nr-1 |
| 551 | goto 665 |
| 552 | endif |
| 553 | 666 enddo |
| 554 | 665 continue |
| 555 | * |
| 556 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) |
| 557 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) |
| 558 | * |
| 559 | if(ipart.eq.1) then |
| 560 | clow = xfraclow*calq(nrlow,nxlow)+xfrachigh*calq(nrlow,nxhigh) |
| 561 | chigh = xfraclow*calq(nrhigh,nxlow)+xfrachigh*calq(nrhigh,nxhigh) |
| 562 | else |
| 563 | clow = xfraclow*calg(nrlow,nxlow)+xfrachigh*calg(nrlow,nxhigh) |
| 564 | chigh = xfraclow*calg(nrhigh,nxlow)+xfrachigh*calg(nrhigh,nxhigh) |
| 565 | endif |
| 566 | |
| 567 | continuous = rfraclow*clow + rfrachigh*chigh |
| 568 | |
| 569 | if(ipart.eq.1) then |
| 570 | discrete = rfraclow*dalq(nrlow) + rfrachigh*dalq(nrhigh) |
| 571 | else |
| 572 | discrete = rfraclow*dalg(nrlow) + rfrachigh*dalg(nrhigh) |
| 573 | endif |
| 574 | * |
| 575 | END |
| 576 | |
| 577 | subroutine initlin |
| 578 | REAL*8 xxlq(400), dalq(30), calq(30,261), rrr(30) |
| 579 | COMMON /datalinqua/ xxlq, dalq, calq, rrr |
| 580 | * |
| 581 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) |
| 582 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg |
| 583 | * |
| 584 | OPEN(UNIT=20,FILE='contlin.all',STATUS='OLD',ERR=90) |
| 585 | do 110 nn=1,261 |
| 586 | read (20,*) xxlq(nn), calq(1,nn), calq(2,nn), calq(3,nn), |
| 587 | + calq(4,nn), calq(5,nn), calq(6,nn), calq(7,nn), calq(8,nn), |
| 588 | + calq(9,nn), calq(10,nn), calq(11,nn), calq(12,nn), |
| 589 | + calq(13,nn), |
| 590 | + calq(14,nn), calq(15,nn), calq(16,nn), calq(17,nn), |
| 591 | + calq(18,nn), |
| 592 | + calq(19,nn), calq(20,nn), calq(21,nn), calq(22,nn), |
| 593 | + calq(23,nn), |
| 594 | + calq(24,nn), calq(25,nn), calq(26,nn), calq(27,nn), |
| 595 | + calq(28,nn), |
| 596 | + calq(29,nn), calq(30,nn) |
| 597 | 110 continue |
| 598 | do 111 nn=1,261 |
| 599 | read (20,*) xxlg(nn), calg(1,nn), calg(2,nn), calg(3,nn), |
| 600 | + calg(4,nn), calg(5,nn), calg(6,nn), calg(7,nn), calg(8,nn), |
| 601 | + calg(9,nn), calg(10,nn), calg(11,nn), calg(12,nn), |
| 602 | + calg(13,nn), |
| 603 | + calg(14,nn), calg(15,nn), calg(16,nn), calg(17,nn), |
| 604 | + calg(18,nn), |
| 605 | + calg(19,nn), calg(20,nn), calg(21,nn), calg(22,nn), |
| 606 | + calg(23,nn), |
| 607 | + calg(24,nn), calg(25,nn), calg(26,nn), calg(27,nn), |
| 608 | + calg(28,nn), |
| 609 | + calg(29,nn), calg(30,nn) |
| 610 | 111 continue |
| 611 | close(20) |
| 612 | * |
| 613 | OPEN(UNIT=21,FILE='disclin.all',STATUS='OLD',ERR=91) |
| 614 | do 112 nn=1,30 |
| 615 | read (21,*) rrr(nn), dalq(nn) |
| 616 | 112 continue |
| 617 | do 113 nn=1,30 |
| 618 | read (21,*) rrrlg(nn), dalg(nn) |
| 619 | 113 continue |
| 620 | close(21) |
| 621 | * |
| 622 | goto 888 |
| 623 | 90 PRINT*, 'input - output error' |
| 624 | 91 PRINT*, 'input - output error #2' |
| 625 | 888 continue |
| 626 | |
| 627 | end |
| 628 | |
| 629 | ======================================================================= |
| 630 | |
| 631 | Ported to class by C. Loizides - 17/02/2004 |
| 632 | |
| 633 | */ |
| 634 | |
| 635 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, Double_t rrrr,Double_t xxxx, |
| 636 | Double_t &continuous,Double_t &discrete) const |
| 637 | { |
| 638 | // calculate Single Hard approx. |
| 639 | // weights for given parton type, |
| 640 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L |
| 641 | |
| 642 | // read-in data before first call |
| 643 | if(!fTablesLoaded){ |
| 644 | Error("CalcMult","Tables are not loaded."); |
| 645 | return -1; |
| 646 | } |
| 647 | if(!fMultSoft){ |
| 648 | Error("CalcMult","Tables are not loaded for Single Hard Scattering."); |
| 649 | return -1; |
| 650 | } |
| 651 | |
| 652 | Double_t rrin = rrrr; |
| 653 | Double_t xxin = xxxx; |
| 654 | |
| 655 | Int_t nxlow = (Int_t)(xxin/0.038) + 1; |
| 656 | Int_t nxhigh = nxlow + 1; |
| 657 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.038; |
| 658 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.038; |
| 659 | |
| 660 | //why this? |
| 661 | if(rrin<=frrr[29]) rrin = 1.05*frrr[29]; // AD |
| 662 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
| 663 | |
| 664 | Int_t nrlow=0,nrhigh=0; |
| 665 | Double_t rrhigh=0,rrlow=0; |
| 666 | for(Int_t nr=1; nr<=30; nr++) { |
| 667 | if(rrin<frrr[nr-1]) { |
| 668 | rrhigh = frrr[nr-1]; |
| 669 | } else { |
| 670 | rrhigh = frrr[nr-1-1]; |
| 671 | rrlow = frrr[nr-1]; |
| 672 | nrlow = nr; |
| 673 | nrhigh = nr-1; |
| 674 | break; |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | rrin = rrrr; // AD |
| 679 | |
| 680 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); |
| 681 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); |
| 682 | |
| 683 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
| 684 | |
| 685 | Double_t clow=0,chigh=0; |
| 686 | if(ipart==1) { |
| 687 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; |
| 688 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; |
| 689 | } else { |
| 690 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; |
| 691 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; |
| 692 | } |
| 693 | |
| 694 | continuous = rfraclow*clow + rfrachigh*chigh; |
| 695 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", |
| 696 | // rfraclow,clow,rfrachigh,chigh,continuous); |
| 697 | |
| 698 | if(ipart==1) { |
| 699 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; |
| 700 | } else { |
| 701 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; |
| 702 | } |
| 703 | |
| 704 | return 0; |
| 705 | } |
| 706 | |
| 707 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, |
| 708 | Double_t w,Double_t qtransp,Double_t length, |
| 709 | Double_t &continuous,Double_t &discrete) const |
| 710 | { |
| 711 | Double_t wc=CalcWC(qtransp,length); |
| 712 | Double_t rrrr=CalcR(wc,length); |
| 713 | Double_t xxxx=w/wc; |
| 714 | return CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 715 | } |
| 716 | |
| 717 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, |
| 718 | Double_t w,Double_t mu,Double_t length, |
| 719 | Double_t &continuous,Double_t &discrete) const |
| 720 | { |
| 721 | Double_t wcbar=CalcWCbar(mu,length); |
| 722 | Double_t rrrr=CalcR(wcbar,length); |
| 723 | Double_t xxxx=w/wcbar; |
| 724 | return CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); |
| 725 | } |
| 726 | |
| 727 | Double_t AliQuenchingWeights::CalcR(Double_t wc, Double_t l) const |
| 728 | { |
| 729 | Double_t R = wc*l*gkConvFmToInvGeV; |
| 730 | if(R>gkRMax) { |
| 731 | Warning("CalcR","Value of R = %.2f; should be less than %.2f",R,gkRMax); |
| 732 | return -R; |
| 733 | } |
| 734 | return R; |
| 735 | } |
| 736 | |
| 737 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, Double_t length, Double_t e) const |
| 738 | { |
| 739 | // return DeltaE for MS or SH scattering |
| 740 | // for given parton type, length and energy |
| 741 | // Dependant on ECM (energy constraint method) |
| 742 | // e is used to determine where to set bins to zero. |
| 743 | |
| 744 | if(!fHistos){ |
| 745 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); |
| 746 | return -1000.; |
| 747 | } |
| 748 | if((ipart<1) || (ipart>2)) { |
| 749 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); |
| 750 | return -1000; |
| 751 | } |
| 752 | |
| 753 | Int_t l=(Int_t)length; |
| 754 | if((length-(Double_t)l)>0.5) l++; |
| 755 | if(l<=0) return 0.; |
| 756 | if(l>fLengthMax) l=fLengthMax; |
| 757 | |
| 758 | if(fECMethod==kReweight){ |
| 759 | TH1F *dummy=new TH1F(*fHistos[ipart-1][l-1]); |
| 760 | dummy->SetName("dummy"); |
| 761 | for(Int_t bin=dummy->FindBin(e)+1;bin<=1100;bin++){ |
| 762 | dummy->SetBinContent(bin,0.); |
| 763 | } |
| 764 | dummy->Scale(1./dummy->Integral()); |
| 765 | Double_t ret=dummy->GetRandom(); |
| 766 | delete dummy; |
| 767 | return ret; |
| 768 | //****** !! ALTERNATIVE WAY OF DOING IT !! *** |
| 769 | //Double_t ret = 2.*e; |
| 770 | //while(ret>e) ret=fHistos[ipart-1][l-1]->GetRandom(); |
| 771 | //return ret; |
| 772 | //******************************************** |
| 773 | } else { //kDefault |
| 774 | Double_t ret=fHistos[ipart-1][l-1]->GetRandom(); |
| 775 | if(ret>e) return e; |
| 776 | return ret; |
| 777 | } |
| 778 | } |
| 779 | |
| 780 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, Double_t length, Double_t e) const |
| 781 | { |
| 782 | //return quenched parton energy |
| 783 | //for given parton type, length and energy |
| 784 | |
| 785 | Double_t loss=GetELossRandom(ipart,length,e); |
| 786 | return e-loss; |
| 787 | } |
| 788 | |
| e99e3ed5 |
789 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, TH1F *hell, Double_t e) const |
| b6d061b7 |
790 | { |
| 791 | if(!hell){ |
| 792 | Warning("GetELossRandom","Pointer to length distribution is NULL."); |
| 793 | return 0.; |
| 794 | } |
| 795 | Double_t ell=hell->GetRandom(); |
| 796 | return GetELossRandom(ipart,ell,e); |
| 797 | } |
| 798 | |
| 799 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, TH1F *hell, Double_t e) const |
| 800 | { |
| 801 | //return quenched parton energy |
| 802 | //for given parton type, length distribution and energy |
| 803 | |
| 804 | Double_t loss=GetELossRandom(ipart,hell,e); |
| 805 | return e-loss; |
| 806 | } |
| 807 | |
| 808 | Int_t AliQuenchingWeights::SampleEnergyLoss() |
| 809 | { |
| 810 | // Has to be called to fill the histograms |
| 811 | // |
| 812 | // For stored values fQTransport loop over |
| 813 | // particle type and length = 1 to fMaxLength (fm) |
| 814 | // to fill energy loss histos |
| 815 | // |
| 816 | // Take histogram of continuous weights |
| 817 | // Take discrete_weight |
| 818 | // If discrete_weight > 1, put all channels to 0, except channel 1 |
| 819 | // Fill channel 1 with discrete_weight/(1-discrete_weight)*integral |
| 820 | |
| 821 | // read-in data before first call |
| 822 | if(!fTablesLoaded){ |
| 823 | Error("CalcMult","Tables are not loaded."); |
| 824 | return -1; |
| 825 | } |
| 826 | |
| 827 | if(fMultSoft) { |
| 828 | Int_t lmax=CalcLengthMax(fQTransport); |
| 829 | if(fLengthMax>lmax){ |
| 830 | Info("SampleEnergyLoss","Maximum length changed from %d to %d;\nin order to have R < %.f",fLengthMax,lmax,gkRMax); |
| 831 | fLengthMax=lmax; |
| 832 | } |
| 833 | } else { |
| 834 | Warning("SampleEnergyLoss","Maximum length not checked,\nbecause SingeHard is not yet tested."); |
| 835 | } |
| 836 | |
| 837 | Reset(); |
| 838 | fHistos=new TH1F**[2]; |
| 839 | fHistos[0]=new TH1F*[fLengthMax]; |
| 840 | fHistos[1]=new TH1F*[fLengthMax]; |
| 841 | fLengthMaxOld=fLengthMax; //remember old value in case |
| 842 | //user wants to reset |
| 843 | |
| 844 | Int_t medvalue=0; |
| 845 | Char_t meddesc[100]; |
| 846 | if(fMultSoft) { |
| 847 | medvalue=(Int_t)(fQTransport*1000.); |
| 848 | sprintf(meddesc,"MS"); |
| 849 | } else { |
| 850 | medvalue=(Int_t)(fMu*1000.); |
| 851 | sprintf(meddesc,"SH"); |
| 852 | } |
| 853 | |
| 854 | for(Int_t ipart=1;ipart<=2;ipart++){ |
| 855 | for(Int_t l=1;l<=fLengthMax;l++){ |
| 856 | |
| 857 | Char_t hname[100]; |
| 858 | sprintf(hname,"hDisc-ContQW_%s_%d_%d_%d_%d",meddesc,fInstanceNumber,ipart,medvalue,l); |
| 859 | Double_t wc = CalcWC(l); |
| 860 | fHistos[ipart-1][l-1] = new TH1F(hname,hname,1100,0.,1.1*wc); |
| 861 | fHistos[ipart-1][l-1]->SetXTitle("#Delta E [GeV]"); |
| 862 | fHistos[ipart-1][l-1]->SetYTitle("p(#Delta E)"); |
| 863 | fHistos[ipart-1][l-1]->SetLineColor(4); |
| 864 | |
| 865 | Double_t rrrr = CalcR(wc,l); |
| 866 | Double_t discrete=0.; |
| 867 | // loop on histogram channels |
| 868 | for(Int_t bin=1; bin<=1100; bin++) { |
| 869 | Double_t xxxx = fHistos[ipart-1][l-1]->GetBinCenter(bin)/wc; |
| 870 | Double_t continuous; |
| 871 | CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 872 | fHistos[ipart-1][l-1]->SetBinContent(bin,continuous); |
| 873 | } |
| 874 | // add discrete part to distribution |
| 875 | if(discrete>=1.) |
| 876 | for(Int_t bin=2;bin<=1100;bin++) |
| 877 | fHistos[ipart-1][l-1]->SetBinContent(bin,0.); |
| 878 | else { |
| 879 | Double_t val=discrete/(1.-discrete)*fHistos[ipart-1][l-1]->Integral(1,1100); |
| 880 | fHistos[ipart-1][l-1]->Fill(0.,val); |
| 881 | } |
| 882 | Double_t hint=fHistos[ipart-1][l-1]->Integral(1,1100); |
| 883 | fHistos[ipart-1][l-1]->Scale(1./hint); |
| 884 | } |
| 885 | } |
| 886 | return 0; |
| 887 | } |
| 888 | |
| 889 | const TH1F* AliQuenchingWeights::GetHisto(Int_t ipart,Int_t l) const |
| 890 | { |
| 891 | if(!fHistos){ |
| 892 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); |
| 893 | return 0; |
| 894 | } |
| 895 | if((ipart<1) || (ipart>2)) { |
| 896 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); |
| 897 | return 0; |
| 898 | } |
| 899 | |
| 900 | if(l<=0) return 0; |
| 901 | if(l>fLengthMax) l=fLengthMax; |
| 902 | |
| 903 | return fHistos[ipart-1][l-1]; |
| 904 | } |
| 905 | |
| 906 | TH1F* AliQuenchingWeights::ComputeQWHisto(Int_t ipart,Double_t medval,Double_t length) const |
| 907 | { |
| 908 | // ipart = 1 for quark, 2 for gluon |
| 909 | // medval a) qtransp = transport coefficient (GeV^2/fm) |
| 910 | // b) mu = Debye mass (GeV) |
| 911 | // length = path length in medium (fm) |
| 912 | // Get from SW tables: |
| 913 | // - discrete weight (probability to have NO energy loss) |
| 914 | // - continuous weight, as a function of dE |
| 915 | // compute up to max dE = 1.1*wc |
| 916 | // (as an histogram named hContQW_<ipart>_<medval*1000>_<l> |
| 917 | // and range [0,1.1*wc] (1100 channels) |
| 918 | |
| 919 | Double_t wc = 0; |
| 920 | Char_t meddesc[100]; |
| 921 | if(fMultSoft) { |
| 922 | wc=CalcWC(medval,length); |
| 923 | sprintf(meddesc,"MS"); |
| 924 | } else { |
| 925 | wc=CalcWCbar(medval,length); |
| 926 | sprintf(meddesc,"SH"); |
| 927 | } |
| 928 | |
| 929 | Char_t hname[100]; |
| 930 | sprintf(hname,"hContQWHisto_%s_%d_%d_%d",meddesc,ipart, |
| 931 | (Int_t)(medval*1000.),(Int_t)length); |
| 932 | |
| 933 | TH1F *hist = new TH1F("hist",hname,1100,0.,1.1*wc); |
| 934 | hist->SetXTitle("#Delta E [GeV]"); |
| 935 | hist->SetYTitle("p(#Delta E)"); |
| 936 | hist->SetLineColor(4); |
| 937 | |
| 938 | Double_t rrrr = CalcR(wc,length); |
| 939 | // loop on histogram channels |
| 940 | for(Int_t bin=1; bin<=1100; bin++) { |
| 941 | Double_t xxxx = hist->GetBinCenter(bin)/wc; |
| 942 | Double_t continuous,discrete; |
| 943 | Int_t ret=0; |
| 944 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 945 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); |
| 946 | if(ret!=0){ |
| 947 | delete hist; |
| 948 | return 0; |
| 949 | }; |
| 950 | hist->SetBinContent(bin,continuous); |
| 951 | } |
| 952 | return hist; |
| 953 | } |
| 954 | |
| 955 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t medval,Double_t length) const |
| 956 | { |
| 957 | // ipart = 1 for quark, 2 for gluon |
| 958 | // medval a) qtransp = transport coefficient (GeV^2/fm) |
| 959 | // b) mu = Debye mass (GeV) |
| 960 | // length = path length in medium (fm) |
| 961 | // Get from SW tables: |
| 962 | // - discrete weight (probability to have NO energy loss) |
| 963 | // - continuous weight, as a function of dE |
| 964 | // compute up to max dE = 1.1*wc |
| 965 | // (as an histogram named hContQW_<ipart>_<medval*1000>_<l> |
| 966 | // and range [0,1.1] (1100 channels) |
| 967 | |
| 968 | Double_t wc = 0; |
| 969 | Char_t meddesc[100]; |
| 970 | if(fMultSoft) { |
| 971 | wc=CalcWC(medval,length); |
| 972 | sprintf(meddesc,"MS"); |
| 973 | } else { |
| 974 | wc=CalcWCbar(medval,length); |
| 975 | sprintf(meddesc,"SH"); |
| 976 | } |
| 977 | |
| 978 | Char_t hname[100]; |
| 979 | sprintf(hname,"hContQWHistox_%s_%d_%d_%d",meddesc,ipart, |
| 980 | (Int_t)(medval*1000.),(Int_t)length); |
| 981 | |
| 982 | TH1F *histx = new TH1F("histx",hname,1100,0.,1.1); |
| 983 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
| 984 | if(fMultSoft) |
| 985 | histx->SetYTitle("p(#Delta E/#omega_{c})"); |
| 986 | else |
| 987 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); |
| 988 | histx->SetLineColor(4); |
| 989 | |
| 990 | Double_t rrrr = CalcR(wc,length); |
| 991 | // loop on histogram channels |
| 992 | for(Int_t bin=1; bin<=1100; bin++) { |
| 993 | Double_t xxxx = histx->GetBinCenter(bin); |
| 994 | Double_t continuous,discrete; |
| 995 | Int_t ret=0; |
| 996 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 997 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); |
| 998 | if(ret!=0){ |
| 999 | delete histx; |
| 1000 | return 0; |
| 1001 | }; |
| 1002 | histx->SetBinContent(bin,continuous); |
| 1003 | } |
| 1004 | return histx; |
| 1005 | } |
| 1006 | |
| e99e3ed5 |
1007 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,Double_t l,Double_t e) const |
| b6d061b7 |
1008 | { |
| 1009 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
| 1010 | if(fMultSoft){ |
| 1011 | dummy->SetQTransport(medval); |
| 1012 | dummy->InitMult(); |
| 1013 | } else { |
| 1014 | dummy->SetMu(medval); |
| 1015 | dummy->InitSingleHard(); |
| 1016 | } |
| 1017 | dummy->SampleEnergyLoss(); |
| 1018 | |
| 1019 | Char_t name[100]; |
| 1020 | Char_t hname[100]; |
| 1021 | if(ipart==1){ |
| 1022 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); |
| 1023 | sprintf(hname,"hLossQuarks"); |
| 1024 | } else { |
| 1025 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); |
| 1026 | sprintf(hname,"hLossGluons"); |
| 1027 | } |
| 1028 | |
| 1029 | TH1F *h = new TH1F(hname,name,250,0,250); |
| 1030 | for(Int_t i=0;i<100000;i++){ |
| 1031 | //if(i % 1000 == 0) cout << "." << flush; |
| 1032 | Double_t loss=dummy->GetELossRandom(ipart,l,e); |
| 1033 | h->Fill(loss); |
| 1034 | } |
| 1035 | |
| 1036 | h->SetStats(kTRUE); |
| 1037 | |
| 1038 | delete dummy; |
| 1039 | return h; |
| 1040 | } |
| 1041 | |
| e99e3ed5 |
1042 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,TH1F *hEll,Double_t e) const |
| b6d061b7 |
1043 | { |
| 1044 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
| 1045 | if(fMultSoft){ |
| 1046 | dummy->SetQTransport(medval); |
| 1047 | dummy->InitMult(); |
| 1048 | } else { |
| 1049 | dummy->SetMu(medval); |
| 1050 | dummy->InitSingleHard(); |
| 1051 | } |
| 1052 | dummy->SampleEnergyLoss(); |
| 1053 | |
| 1054 | Char_t name[100]; |
| 1055 | Char_t hname[100]; |
| 1056 | if(ipart==1){ |
| 1057 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); |
| 1058 | sprintf(hname,"hLossQuarks"); |
| 1059 | } else { |
| 1060 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); |
| 1061 | sprintf(hname,"hLossGluons"); |
| 1062 | } |
| 1063 | |
| 1064 | TH1F *h = new TH1F(hname,name,250,0,250); |
| 1065 | for(Int_t i=0;i<100000;i++){ |
| 1066 | //if(i % 1000 == 0) cout << "." << flush; |
| 1067 | Double_t loss=dummy->GetELossRandom(ipart,hEll,e); |
| 1068 | h->Fill(loss); |
| 1069 | } |
| 1070 | |
| 1071 | h->SetStats(kTRUE); |
| 1072 | |
| 1073 | delete dummy; |
| 1074 | return h; |
| 1075 | } |
| 1076 | |
| 1077 | void AliQuenchingWeights::PlotDiscreteWeights(Int_t len) const |
| 1078 | { |
| 1079 | TCanvas *c; |
| 1080 | if(fMultSoft) |
| 1081 | c = new TCanvas("cdiscms","Discrete Weight for Multiple Scattering",0,0,500,400); |
| 1082 | else |
| 1083 | c = new TCanvas("cdiscsh","Discrete Weight for Single Hard Scattering",0,0,500,400); |
| 1084 | c->cd(); |
| 1085 | |
| 1086 | TH2F *hframe = new TH2F("hdisc","",2,0,5.1,2,0,1); |
| 1087 | hframe->SetStats(0); |
| 1088 | if(fMultSoft) |
| 1089 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); |
| 1090 | else |
| 1091 | hframe->SetXTitle("#mu [GeV]"); |
| 1092 | hframe->SetYTitle("Probability #Delta E = 0 , p_{0}"); |
| 1093 | hframe->Draw(); |
| 1094 | |
| 1095 | TGraph *gq=new TGraph(20); |
| 1096 | Int_t i=0; |
| 1097 | if(fMultSoft) { |
| 1098 | for(Double_t q=0.05;q<=5.05;q+=0.25){ |
| 1099 | Double_t disc,cont; |
| 1100 | CalcMult(1,1.0, q, len, cont, disc); |
| 1101 | gq->SetPoint(i,q,disc);i++; |
| 1102 | } |
| 1103 | } else { |
| 1104 | for(Double_t m=0.05;m<=5.05;m+=0.25){ |
| 1105 | Double_t disc,cont; |
| 1106 | CalcSingleHard(1,1.0, m, len, cont, disc); |
| 1107 | gq->SetPoint(i,m,disc);i++; |
| 1108 | } |
| 1109 | } |
| 1110 | gq->SetMarkerStyle(20); |
| 1111 | gq->Draw("pl"); |
| 1112 | |
| 1113 | TGraph *gg=new TGraph(20); |
| 1114 | i=0; |
| 1115 | if(fMultSoft){ |
| 1116 | for(Double_t q=0.05;q<=5.05;q+=0.25){ |
| 1117 | Double_t disc,cont; |
| 1118 | CalcMult(2,1.0, q, 5., cont, disc); |
| 1119 | gg->SetPoint(i,q,disc);i++; |
| 1120 | } |
| 1121 | } else { |
| 1122 | for(Double_t m=0.05;m<=5.05;m+=0.25){ |
| 1123 | Double_t disc,cont; |
| 1124 | CalcSingleHard(2,1.0, m, 5., cont, disc); |
| 1125 | gg->SetPoint(i,m,disc);i++; |
| 1126 | } |
| 1127 | } |
| 1128 | gg->SetMarkerStyle(24); |
| 1129 | gg->Draw("pl"); |
| 1130 | |
| 1131 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1132 | l1a->SetFillStyle(0); |
| 1133 | l1a->SetBorderSize(0); |
| 1134 | Char_t label[100]; |
| 1135 | sprintf(label,"L = %d fm",len); |
| 1136 | l1a->AddEntry(gq,label,""); |
| 1137 | l1a->AddEntry(gq,"quark","pl"); |
| 1138 | l1a->AddEntry(gg,"gluon","pl"); |
| 1139 | l1a->Draw(); |
| 1140 | |
| 1141 | c->Update(); |
| 1142 | } |
| 1143 | |
| 1144 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Int_t ell) const |
| 1145 | { |
| 1146 | Float_t medvals[3]; |
| 1147 | Char_t title[1024]; |
| 1148 | Char_t name[1024]; |
| 1149 | if(fMultSoft) { |
| 1150 | if(itype==1) |
| 1151 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); |
| 1152 | else if(itype==2) |
| 1153 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); |
| 1154 | else return; |
| 1155 | medvals[0]=4;medvals[1]=1;medvals[2]=0.5; |
| 1156 | sprintf(name,"ccont-ms-%d",itype); |
| 1157 | } else { |
| 1158 | if(itype==1) |
| 1159 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); |
| 1160 | else if(itype==2) |
| 1161 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); |
| 1162 | else return; |
| 1163 | medvals[0]=2;medvals[1]=1;medvals[2]=0.5; |
| 1164 | sprintf(name,"ccont-ms-%d",itype); |
| 1165 | } |
| 1166 | |
| 1167 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1168 | c->cd(); |
| 1169 | TH1F *h1=ComputeQWHisto(itype,medvals[0],ell); |
| 1170 | h1->SetName("h1"); |
| 1171 | h1->SetTitle(title); |
| 1172 | h1->SetStats(0); |
| 1173 | h1->SetLineColor(1); |
| 1174 | h1->DrawCopy(); |
| 1175 | TH1F *h2=ComputeQWHisto(itype,medvals[1],ell); |
| 1176 | h2->SetName("h2"); |
| 1177 | h2->SetLineColor(2); |
| 1178 | h2->DrawCopy("SAME"); |
| 1179 | TH1F *h3=ComputeQWHisto(itype,medvals[2],ell); |
| 1180 | h3->SetName("h3"); |
| 1181 | h3->SetLineColor(3); |
| 1182 | h3->DrawCopy("SAME"); |
| 1183 | |
| 1184 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1185 | l1a->SetFillStyle(0); |
| 1186 | l1a->SetBorderSize(0); |
| 1187 | Char_t label[100]; |
| 1188 | sprintf(label,"L = %d fm",ell); |
| 1189 | l1a->AddEntry(h1,label,""); |
| 1190 | if(fMultSoft) { |
| 1191 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[0]); |
| 1192 | l1a->AddEntry(h1,label,"pl"); |
| 1193 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[1]); |
| 1194 | l1a->AddEntry(h2,label,"pl"); |
| 1195 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[2]); |
| 1196 | l1a->AddEntry(h3,label,"pl"); |
| 1197 | } else { |
| 1198 | sprintf(label,"#mu = %.1f GeV",medvals[0]); |
| 1199 | l1a->AddEntry(h1,label,"pl"); |
| 1200 | sprintf(label,"#mu = %.1f GeV",medvals[1]); |
| 1201 | l1a->AddEntry(h2,label,"pl"); |
| 1202 | sprintf(label,"#mu = %.1f GeV",medvals[2]); |
| 1203 | l1a->AddEntry(h3,label,"pl"); |
| 1204 | } |
| 1205 | l1a->Draw(); |
| 1206 | |
| 1207 | c->Update(); |
| 1208 | } |
| 1209 | |
| 1210 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Double_t medval) const |
| 1211 | { |
| 1212 | Char_t title[1024]; |
| 1213 | Char_t name[1024]; |
| 1214 | if(fMultSoft) { |
| 1215 | if(itype==1) |
| 1216 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); |
| 1217 | else if(itype==2) |
| 1218 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); |
| 1219 | else return; |
| 1220 | sprintf(name,"ccont2-ms-%d",itype); |
| 1221 | } else { |
| 1222 | if(itype==1) |
| 1223 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); |
| 1224 | else if(itype==2) |
| 1225 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); |
| 1226 | else return; |
| 1227 | sprintf(name,"ccont2-sh-%d",itype); |
| 1228 | } |
| 1229 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1230 | c->cd(); |
| 1231 | TH1F *h1=ComputeQWHisto(itype,medval,8); |
| 1232 | h1->SetName("h1"); |
| 1233 | h1->SetTitle(title); |
| 1234 | h1->SetStats(0); |
| 1235 | h1->SetLineColor(1); |
| 1236 | h1->DrawCopy(); |
| 1237 | TH1F *h2=ComputeQWHisto(itype,medval,5); |
| 1238 | h2->SetName("h2"); |
| 1239 | h2->SetLineColor(2); |
| 1240 | h2->DrawCopy("SAME"); |
| 1241 | TH1F *h3=ComputeQWHisto(itype,medval,2); |
| 1242 | h3->SetName("h3"); |
| 1243 | h3->SetLineColor(3); |
| 1244 | h3->DrawCopy("SAME"); |
| 1245 | |
| 1246 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1247 | l1a->SetFillStyle(0); |
| 1248 | l1a->SetBorderSize(0); |
| 1249 | Char_t label[100]; |
| 1250 | if(fMultSoft) |
| 1251 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medval); |
| 1252 | else |
| 1253 | sprintf(label,"#mu = %.1f GeV",medval); |
| 1254 | |
| 1255 | l1a->AddEntry(h1,label,""); |
| 1256 | l1a->AddEntry(h1,"L = 8 fm","pl"); |
| 1257 | l1a->AddEntry(h2,"L = 5 fm","pl"); |
| 1258 | l1a->AddEntry(h3,"L = 2 fm","pl"); |
| 1259 | l1a->Draw(); |
| 1260 | |
| 1261 | c->Update(); |
| 1262 | } |
| 1263 | |
| e99e3ed5 |
1264 | void AliQuenchingWeights::PlotAvgELoss(Int_t len,Double_t e) const |
| b6d061b7 |
1265 | { |
| 1266 | if(!fTablesLoaded){ |
| 1267 | Error("CalcMult","Tables are not loaded."); |
| 1268 | return; |
| 1269 | } |
| 1270 | |
| 1271 | Char_t title[1024]; |
| 1272 | Char_t name[1024]; |
| 1273 | if(fMultSoft){ |
| 1274 | sprintf(title,"Average Loss for Multiple Scattering"); |
| 1275 | sprintf(name,"cavgelossms"); |
| 1276 | } else { |
| 1277 | sprintf(title,"Average Loss for Single Hard Scattering"); |
| 1278 | sprintf(name,"cavgelosssh"); |
| 1279 | } |
| 1280 | |
| 1281 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1282 | c->cd(); |
| 1283 | TH2F *hframe = new TH2F("avgloss",title,2,0,5.1,2,0,100); |
| 1284 | hframe->SetStats(0); |
| 1285 | if(fMultSoft) |
| 1286 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); |
| 1287 | else |
| 1288 | hframe->SetXTitle("#mu [GeV]"); |
| 1289 | hframe->SetYTitle("<E_{loss}> [GeV]"); |
| 1290 | hframe->Draw(); |
| 1291 | |
| 1292 | TGraph *gq=new TGraph(20); |
| 1293 | Int_t i=0; |
| 1294 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1295 | TH1F *dummy=ComputeELossHisto(1,v,len,e); |
| 1296 | Double_t avgloss=dummy->GetMean(); |
| 1297 | gq->SetPoint(i,v,avgloss);i++; |
| 1298 | delete dummy; |
| 1299 | } |
| 1300 | gq->SetMarkerStyle(20); |
| 1301 | gq->Draw("pl"); |
| 1302 | |
| 1303 | TGraph *gg=new TGraph(20); |
| 1304 | i=0; |
| 1305 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1306 | TH1F *dummy=ComputeELossHisto(2,v,len,e); |
| 1307 | Double_t avgloss=dummy->GetMean(); |
| 1308 | gg->SetPoint(i,v,avgloss);i++; |
| 1309 | delete dummy; |
| 1310 | } |
| 1311 | gg->SetMarkerStyle(24); |
| 1312 | gg->Draw("pl"); |
| 1313 | |
| 1314 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1315 | l1a->SetFillStyle(0); |
| 1316 | l1a->SetBorderSize(0); |
| 1317 | Char_t label[100]; |
| 1318 | sprintf(label,"L = %d fm",len); |
| 1319 | l1a->AddEntry(gq,label,""); |
| 1320 | l1a->AddEntry(gq,"quark","pl"); |
| 1321 | l1a->AddEntry(gg,"gluon","pl"); |
| 1322 | l1a->Draw(); |
| 1323 | |
| 1324 | c->Update(); |
| 1325 | } |
| 1326 | |
| e99e3ed5 |
1327 | void AliQuenchingWeights::PlotAvgELoss(TH1F *hEll,Double_t e) const |
| b6d061b7 |
1328 | { |
| 1329 | if(!fTablesLoaded){ |
| 1330 | Error("CalcMult","Tables are not loaded."); |
| 1331 | return; |
| 1332 | } |
| 1333 | |
| 1334 | Char_t title[1024]; |
| 1335 | Char_t name[1024]; |
| 1336 | if(fMultSoft){ |
| 1337 | sprintf(title,"Average Loss for Multiple Scattering"); |
| 1338 | sprintf(name,"cavgelossms2"); |
| 1339 | } else { |
| 1340 | sprintf(title,"Average Loss for Single Hard Scattering"); |
| 1341 | sprintf(name,"cavgelosssh2"); |
| 1342 | } |
| 1343 | |
| 1344 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1345 | c->cd(); |
| 1346 | TH2F *hframe = new TH2F("havgloss",title,2,0,5.1,2,0,100); |
| 1347 | hframe->SetStats(0); |
| 1348 | if(fMultSoft) |
| 1349 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); |
| 1350 | else |
| 1351 | hframe->SetXTitle("#mu [GeV]"); |
| 1352 | hframe->SetYTitle("<E_{loss}> [GeV]"); |
| 1353 | hframe->Draw(); |
| 1354 | |
| 1355 | TGraph *gq=new TGraph(20); |
| 1356 | Int_t i=0; |
| 1357 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1358 | TH1F *dummy=ComputeELossHisto(1,v,hEll,e); |
| 1359 | Double_t avgloss=dummy->GetMean(); |
| 1360 | gq->SetPoint(i,v,avgloss);i++; |
| 1361 | delete dummy; |
| 1362 | } |
| 1363 | gq->SetMarkerStyle(20); |
| 1364 | gq->Draw("pl"); |
| 1365 | |
| 1366 | TGraph *gg=new TGraph(20); |
| 1367 | i=0; |
| 1368 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1369 | TH1F *dummy=ComputeELossHisto(2,v,hEll,e); |
| 1370 | Double_t avgloss=dummy->GetMean(); |
| 1371 | gg->SetPoint(i,v,avgloss);i++; |
| 1372 | delete dummy; |
| 1373 | } |
| 1374 | gg->SetMarkerStyle(24); |
| 1375 | gg->Draw("pl"); |
| 1376 | |
| 1377 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1378 | l1a->SetFillStyle(0); |
| 1379 | l1a->SetBorderSize(0); |
| 1380 | Char_t label[100]; |
| 1381 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); |
| 1382 | l1a->AddEntry(gq,label,""); |
| 1383 | l1a->AddEntry(gq,"quark","pl"); |
| 1384 | l1a->AddEntry(gg,"gluon","pl"); |
| 1385 | l1a->Draw(); |
| 1386 | |
| 1387 | c->Update(); |
| 1388 | } |
| 1389 | |
| 1390 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,Int_t len) const |
| 1391 | { |
| 1392 | if(!fTablesLoaded){ |
| 1393 | Error("CalcMult","Tables are not loaded."); |
| 1394 | return; |
| 1395 | } |
| 1396 | |
| 1397 | Char_t title[1024]; |
| 1398 | Char_t name[1024]; |
| 1399 | if(fMultSoft){ |
| 1400 | sprintf(title,"Relative Loss for Multiple Scattering"); |
| 1401 | sprintf(name,"cavgelossvsptms"); |
| 1402 | } else { |
| 1403 | sprintf(title,"Relative Loss for Single Hard Scattering"); |
| 1404 | sprintf(name,"cavgelossvsptsh"); |
| 1405 | } |
| 1406 | |
| 1407 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1408 | c->cd(); |
| 1409 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); |
| 1410 | hframe->SetStats(0); |
| 1411 | hframe->SetXTitle("p_{T} [GeV]"); |
| 1412 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); |
| 1413 | hframe->Draw(); |
| 1414 | |
| 1415 | TGraph *gq=new TGraph(40); |
| 1416 | Int_t i=0; |
| 1417 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1418 | TH1F *dummy=ComputeELossHisto(1,medval,len,pt); |
| 1419 | Double_t avgloss=dummy->GetMean(); |
| 1420 | gq->SetPoint(i,pt,avgloss/pt);i++; |
| 1421 | delete dummy; |
| 1422 | } |
| 1423 | gq->SetMarkerStyle(20); |
| 1424 | gq->Draw("pl"); |
| 1425 | |
| 1426 | TGraph *gg=new TGraph(40); |
| 1427 | i=0; |
| 1428 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1429 | TH1F *dummy=ComputeELossHisto(2,medval,len,pt); |
| 1430 | Double_t avgloss=dummy->GetMean(); |
| 1431 | gg->SetPoint(i,pt,avgloss/pt);i++; |
| 1432 | delete dummy; |
| 1433 | } |
| 1434 | gg->SetMarkerStyle(24); |
| 1435 | gg->Draw("pl"); |
| 1436 | |
| 1437 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1438 | l1a->SetFillStyle(0); |
| 1439 | l1a->SetBorderSize(0); |
| 1440 | Char_t label[100]; |
| 1441 | sprintf(label,"L = %d fm",len); |
| 1442 | l1a->AddEntry(gq,label,""); |
| 1443 | l1a->AddEntry(gq,"quark","pl"); |
| 1444 | l1a->AddEntry(gg,"gluon","pl"); |
| 1445 | l1a->Draw(); |
| 1446 | |
| 1447 | c->Update(); |
| 1448 | } |
| 1449 | |
| 1450 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,TH1F *hEll) const |
| 1451 | { |
| 1452 | if(!fTablesLoaded){ |
| 1453 | Error("CalcMult","Tables are not loaded."); |
| 1454 | return; |
| 1455 | } |
| 1456 | |
| 1457 | Char_t title[1024]; |
| 1458 | Char_t name[1024]; |
| 1459 | if(fMultSoft){ |
| 1460 | sprintf(title,"Relative Loss for Multiple Scattering"); |
| 1461 | sprintf(name,"cavgelossvsptms2"); |
| 1462 | } else { |
| 1463 | sprintf(title,"Relative Loss for Single Hard Scattering"); |
| 1464 | sprintf(name,"cavgelossvsptsh2"); |
| 1465 | } |
| 1466 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1467 | c->cd(); |
| 1468 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); |
| 1469 | hframe->SetStats(0); |
| 1470 | hframe->SetXTitle("p_{T} [GeV]"); |
| 1471 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); |
| 1472 | hframe->Draw(); |
| 1473 | |
| 1474 | TGraph *gq=new TGraph(40); |
| 1475 | Int_t i=0; |
| 1476 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1477 | TH1F *dummy=ComputeELossHisto(1,medval,hEll,pt); |
| 1478 | Double_t avgloss=dummy->GetMean(); |
| 1479 | gq->SetPoint(i,pt,avgloss/pt);i++; |
| 1480 | delete dummy; |
| 1481 | } |
| 1482 | gq->SetMarkerStyle(20); |
| 1483 | gq->Draw("pl"); |
| 1484 | |
| 1485 | TGraph *gg=new TGraph(40); |
| 1486 | i=0; |
| 1487 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1488 | TH1F *dummy=ComputeELossHisto(2,medval,hEll,pt); |
| 1489 | Double_t avgloss=dummy->GetMean(); |
| 1490 | gg->SetPoint(i,pt,avgloss/pt);i++; |
| 1491 | delete dummy; |
| 1492 | } |
| 1493 | gg->SetMarkerStyle(24); |
| 1494 | gg->Draw("pl"); |
| 1495 | |
| 1496 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1497 | l1a->SetFillStyle(0); |
| 1498 | l1a->SetBorderSize(0); |
| 1499 | Char_t label[100]; |
| 1500 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); |
| 1501 | l1a->AddEntry(gq,label,""); |
| 1502 | l1a->AddEntry(gq,"quark","pl"); |
| 1503 | l1a->AddEntry(gg,"gluon","pl"); |
| 1504 | l1a->Draw(); |
| 1505 | |
| 1506 | c->Update(); |
| 1507 | } |
| 1508 | |
git://git.uio.no / u / mrichter / AliRoot.git / blame