| 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 | // |
| b6d061b7 |
30 | //---------------------------------------------------------------------------- |
| 31 | |
| 32 | #include <Riostream.h> |
| 33 | #include <TH1F.h> |
| 34 | #include <TH2F.h> |
| 35 | #include <TCanvas.h> |
| 36 | #include <TGraph.h> |
| 37 | #include <TROOT.h> |
| 38 | #include <TSystem.h> |
| 39 | #include <TLegend.h> |
| 40 | #include "AliQuenchingWeights.h" |
| 41 | |
| 42 | ClassImp(AliQuenchingWeights) |
| 43 | |
| 44 | // conversion from fm to GeV^-1: 1 fm = fmGeV GeV^-1 |
| 7a76a12e |
45 | const Double_t AliQuenchingWeights::fgkConvFmToInvGeV = 1./0.197; |
| b6d061b7 |
46 | |
| 47 | // maximum value of R |
| 7a76a12e |
48 | const Double_t AliQuenchingWeights::fgkRMax = 1.e6; |
| b6d061b7 |
49 | |
| 50 | // counter for histogram labels |
| 7a76a12e |
51 | Int_t AliQuenchingWeights::fgCounter = 0; |
| b6d061b7 |
52 | |
| 53 | AliQuenchingWeights::AliQuenchingWeights() |
| 54 | : TObject() |
| 55 | { |
| 7a76a12e |
56 | //default constructor |
| 57 | |
| b6d061b7 |
58 | fTablesLoaded=kFALSE; |
| 59 | fMultSoft=kTRUE; |
| 60 | fHistos=0; |
| 61 | SetMu(); |
| 62 | SetQTransport(); |
| 63 | SetECMethod(); |
| 64 | SetLengthMax(); |
| 65 | fLengthMaxOld=0; |
| 7a76a12e |
66 | fInstanceNumber=fgCounter++; |
| b6d061b7 |
67 | } |
| 68 | |
| 69 | AliQuenchingWeights::AliQuenchingWeights(const AliQuenchingWeights& a) |
| 70 | : TObject() |
| 71 | { |
| 7a76a12e |
72 | //copy constructor |
| 73 | |
| b6d061b7 |
74 | fTablesLoaded=kFALSE; |
| 75 | fHistos=0; |
| 76 | fLengthMaxOld=0; |
| 77 | fMultSoft=a.GetMultSoft();; |
| 78 | fMu=a.GetMu(); |
| 79 | fQTransport=a.GetQTransport(); |
| 80 | fECMethod=(kECMethod)a.GetECMethod(); |
| 81 | fLengthMax=a.GetLengthMax(); |
| 7a76a12e |
82 | fInstanceNumber=fgCounter++; |
| b6d061b7 |
83 | //Missing in the class is the pathname |
| 84 | //to the tables, can be added if needed |
| 85 | } |
| 86 | |
| 87 | AliQuenchingWeights::~AliQuenchingWeights() |
| 88 | { |
| 89 | Reset(); |
| 90 | } |
| 91 | |
| 92 | void AliQuenchingWeights::Reset() |
| 93 | { |
| 7a76a12e |
94 | //reset tables if there were used |
| 95 | |
| b6d061b7 |
96 | if(!fHistos) return; |
| 97 | for(Int_t l=0;l<fLengthMaxOld;l++){ |
| 98 | delete fHistos[0][l]; |
| 99 | delete fHistos[1][l]; |
| 100 | } |
| 101 | delete[] fHistos; |
| 102 | fHistos=0; |
| 103 | fLengthMaxOld=0; |
| 104 | } |
| 105 | |
| 106 | void AliQuenchingWeights::SetECMethod(kECMethod type) |
| 107 | { |
| 7a76a12e |
108 | //set energy constraint method |
| 109 | |
| b6d061b7 |
110 | fECMethod=type; |
| 111 | if(fECMethod==kDefault) |
| 112 | Info("SetECMethod","Energy Constraint Method set to DEFAULT:\nIf (sampled energy loss > parton energy) then sampled energy loss = parton energy."); |
| 113 | else |
| 114 | Info("SetECMethod","Energy Constraint Method set to REWEIGHT:\nRequire sampled energy loss <= parton energy."); |
| 115 | } |
| 116 | |
| 117 | Int_t AliQuenchingWeights::InitMult(const Char_t *contall,const Char_t *discall) |
| 118 | { |
| 119 | // read in tables for multiple scattering approximation |
| 120 | // path to continuum and to discrete part |
| 121 | |
| 122 | fTablesLoaded = kFALSE; |
| 123 | fMultSoft=kTRUE; |
| 124 | |
| 125 | Char_t fname[1024]; |
| 126 | sprintf(fname,"%s",gSystem->ExpandPathName(contall)); |
| bb545331 |
127 | //PH ifstream fincont(fname); |
| 128 | fstream fincont(fname,ios::in); |
| 129 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 130 | if(!fincont.rdbuf()->is_open()) return -1; |
| 131 | #else |
| b6d061b7 |
132 | if(!fincont.is_open()) return -1; |
| bb545331 |
133 | #endif |
| b6d061b7 |
134 | |
| 135 | Int_t nn=0; //quarks |
| 136 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> |
| 137 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> |
| 7a76a12e |
138 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>>fcaq[13][nn]>> |
| 139 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>>fcaq[18][nn]>> |
| 140 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>>fcaq[23][nn]>> |
| 141 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>>fcaq[28][nn]>> |
| 142 | fcaq[29][nn]>>fcaq[30][nn]>>fcaq[31][nn]>>fcaq[32][nn]>>fcaq[33][nn]) |
| b6d061b7 |
143 | { |
| 144 | nn++; |
| 145 | if(nn==261) break; |
| 146 | } |
| 147 | |
| 148 | nn=0; //gluons |
| 149 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> |
| 150 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> |
| 7a76a12e |
151 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>>fcag[13][nn]>> |
| 152 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>>fcag[18][nn]>> |
| 153 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>>fcag[23][nn]>> |
| 154 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>>fcag[28][nn]>> |
| 155 | fcag[29][nn]>>fcag[30][nn]>>fcag[31][nn]>>fcag[32][nn]>>fcag[33][nn]) |
| 156 | { |
| b6d061b7 |
157 | nn++; |
| 158 | if(nn==261) break; |
| 159 | } |
| 160 | fincont.close(); |
| 161 | |
| 162 | sprintf(fname,"%s",gSystem->ExpandPathName(discall)); |
| bb545331 |
163 | //PH ifstream findisc(fname); |
| 164 | fstream findisc(fname,ios::in); |
| 165 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 166 | if(!findisc.rdbuf()->is_open()) return -1; |
| 167 | #else |
| b6d061b7 |
168 | if(!findisc.is_open()) return -1; |
| bb545331 |
169 | #endif |
| b6d061b7 |
170 | |
| 171 | nn=0; //quarks |
| 172 | while(findisc>>frrr[nn]>>fdaq[nn]) { |
| 173 | nn++; |
| 7a76a12e |
174 | if(nn==34) break; |
| b6d061b7 |
175 | } |
| 176 | nn=0; //gluons |
| 177 | while(findisc>>frrrg[nn]>>fdag[nn]) { |
| 178 | nn++; |
| 7a76a12e |
179 | if(nn==34) break; |
| b6d061b7 |
180 | } |
| 181 | findisc.close(); |
| 182 | fTablesLoaded = kTRUE; |
| 183 | return 0; |
| 184 | } |
| 185 | |
| 186 | /* |
| 187 | C*************************************************************************** |
| 188 | C Quenching Weights for Multiple Soft Scattering |
| 189 | C February 10, 2003 |
| 190 | C |
| 191 | C Refs: |
| 192 | C |
| 193 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. |
| 194 | C |
| 195 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. |
| 196 | C |
| 197 | C |
| 198 | C This package contains quenching weights for gluon radiation in the |
| 199 | C multiple soft scattering approximation. |
| 200 | C |
| 201 | C swqmult returns the quenching weight for a quark (ipart=1) or |
| 202 | C a gluon (ipart=2) traversing a medium with transport coeficient q and |
| 203 | C length L. The input values are rrrr=0.5*q*L^3 and xxxx=w/wc, where |
| 204 | C wc=0.5*q*L^2 and w is the energy radiated. The output values are |
| 205 | C the continuous and discrete (prefactor of the delta function) parts |
| 206 | C of the quenching weights. |
| 207 | C |
| 208 | C In order to use this routine, the files cont.all and disc.all need to be |
| 209 | C in the working directory. |
| 210 | C |
| 211 | C An initialization of the tables is needed by doing call initmult before |
| 212 | C using swqmult. |
| 213 | C |
| 214 | C Please, send us any comment: |
| 215 | C |
| 7a76a12e |
216 | C urs.wiedemann@cern.ch |
| 217 | C carlos.salgado@cern.ch |
| 218 | C |
| 219 | C |
| b6d061b7 |
220 | C------------------------------------------------------------------- |
| 221 | |
| 222 | SUBROUTINE swqmult(ipart,rrrr,xxxx,continuous,discrete) |
| 223 | * |
| 7a76a12e |
224 | REAL*8 xx(400), daq(34), caq(34,261), rrr(34) |
| b6d061b7 |
225 | COMMON /dataqua/ xx, daq, caq, rrr |
| 226 | * |
| 7a76a12e |
227 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
| b6d061b7 |
228 | COMMON /dataglu/ xxg, dag, cag, rrrg |
| 229 | |
| 230 | REAL*8 rrrr,xxxx, continuous, discrete |
| 231 | REAL*8 rrin, xxin |
| 232 | INTEGER nrlow, nrhigh, nxlow, nxhigh |
| 233 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh |
| 234 | REAL*8 xfraclow, xfrachigh |
| 235 | REAL*8 clow, chigh |
| 236 | * |
| 7a76a12e |
237 | |
| 238 | continuous=0.d0 |
| 239 | discrete=0.d0 |
| 240 | |
| b6d061b7 |
241 | rrin = rrrr |
| 242 | xxin = xxxx |
| 243 | * |
| 7a76a12e |
244 | do 666, nr=1,34 |
| b6d061b7 |
245 | if (rrin.lt.rrr(nr)) then |
| 246 | rrhigh = rrr(nr) |
| 247 | else |
| 248 | rrhigh = rrr(nr-1) |
| 249 | rrlow = rrr(nr) |
| 250 | nrlow = nr |
| 251 | nrhigh = nr-1 |
| 252 | goto 665 |
| 253 | endif |
| 254 | 666 enddo |
| 255 | 665 continue |
| 256 | * |
| 257 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) |
| 258 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) |
| 7a76a12e |
259 | if (rrin.gt.10000d0) then |
| 260 | rfraclow = dlog(rrhigh/rrin)/dlog(rrhigh/rrlow) |
| 261 | rfrachigh = dlog(rrin/rrlow)/dlog(rrhigh/rrlow) |
| 262 | endif |
| 263 | * |
| 264 | if (ipart.eq.1.and.rrin.ge.rrr(1)) then |
| 265 | nrlow=1 |
| 266 | nrhigh=1 |
| 267 | rfraclow=1 |
| 268 | rfrachigh=0 |
| 269 | endif |
| 270 | |
| 271 | if (ipart.ne.1.and.rrin.ge.rrrg(1)) then |
| 272 | nrlow=1 |
| 273 | nrhigh=1 |
| 274 | rfraclow=1 |
| 275 | rfrachigh=0 |
| 276 | endif |
| 277 | |
| 278 | if (xxxx.ge.xx(261)) go to 245 |
| 279 | |
| 280 | nxlow = int(xxin/0.01) + 1 |
| 281 | nxhigh = nxlow + 1 |
| 282 | xfraclow = (xx(nxhigh)-xxin)/0.01 |
| 283 | xfrachigh = (xxin - xx(nxlow))/0.01 |
| b6d061b7 |
284 | * |
| 285 | if(ipart.eq.1) then |
| 286 | clow = xfraclow*caq(nrlow,nxlow)+xfrachigh*caq(nrlow,nxhigh) |
| 287 | chigh = xfraclow*caq(nrhigh,nxlow)+xfrachigh*caq(nrhigh,nxhigh) |
| 288 | else |
| 289 | clow = xfraclow*cag(nrlow,nxlow)+xfrachigh*cag(nrlow,nxhigh) |
| 290 | chigh = xfraclow*cag(nrhigh,nxlow)+xfrachigh*cag(nrhigh,nxhigh) |
| 291 | endif |
| 292 | |
| 293 | continuous = rfraclow*clow + rfrachigh*chigh |
| 294 | |
| 7a76a12e |
295 | 245 continue |
| 296 | |
| b6d061b7 |
297 | if(ipart.eq.1) then |
| 298 | discrete = rfraclow*daq(nrlow) + rfrachigh*daq(nrhigh) |
| 299 | else |
| 300 | discrete = rfraclow*dag(nrlow) + rfrachigh*dag(nrhigh) |
| 301 | endif |
| 302 | * |
| 303 | END |
| 304 | |
| 305 | subroutine initmult |
| 7a76a12e |
306 | REAL*8 xxq(400), daq(34), caq(34,261), rrr(34) |
| b6d061b7 |
307 | COMMON /dataqua/ xxq, daq, caq, rrr |
| 308 | * |
| 7a76a12e |
309 | REAL*8 xxg(400), dag(34), cag(34,261), rrrg(34) |
| b6d061b7 |
310 | COMMON /dataglu/ xxg, dag, cag, rrrg |
| 311 | * |
| 7a76a12e |
312 | OPEN(UNIT=20,FILE='contnew.all',STATUS='OLD',ERR=90) |
| b6d061b7 |
313 | do 110 nn=1,261 |
| 314 | read (20,*) xxq(nn), caq(1,nn), caq(2,nn), caq(3,nn), |
| 315 | + caq(4,nn), caq(5,nn), caq(6,nn), caq(7,nn), caq(8,nn), |
| 316 | + caq(9,nn), caq(10,nn), caq(11,nn), caq(12,nn), |
| 317 | + caq(13,nn), |
| 318 | + caq(14,nn), caq(15,nn), caq(16,nn), caq(17,nn), |
| 319 | + caq(18,nn), |
| 320 | + caq(19,nn), caq(20,nn), caq(21,nn), caq(22,nn), |
| 321 | + caq(23,nn), |
| 322 | + caq(24,nn), caq(25,nn), caq(26,nn), caq(27,nn), |
| 323 | + caq(28,nn), |
| 7a76a12e |
324 | + caq(29,nn), caq(30,nn), caq(31,nn), caq(32,nn), |
| 325 | + caq(33,nn), caq(34,nn) |
| b6d061b7 |
326 | 110 continue |
| 327 | do 111 nn=1,261 |
| 328 | read (20,*) xxg(nn), cag(1,nn), cag(2,nn), cag(3,nn), |
| 329 | + cag(4,nn), cag(5,nn), cag(6,nn), cag(7,nn), cag(8,nn), |
| 330 | + cag(9,nn), cag(10,nn), cag(11,nn), cag(12,nn), |
| 331 | + cag(13,nn), |
| 332 | + cag(14,nn), cag(15,nn), cag(16,nn), cag(17,nn), |
| 333 | + cag(18,nn), |
| 334 | + cag(19,nn), cag(20,nn), cag(21,nn), cag(22,nn), |
| 335 | + cag(23,nn), |
| 336 | + cag(24,nn), cag(25,nn), cag(26,nn), cag(27,nn), |
| 337 | + cag(28,nn), |
| 7a76a12e |
338 | + cag(29,nn), cag(30,nn), cag(31,nn), cag(32,nn), |
| 339 | + cag(33,nn), cag(34,nn) |
| b6d061b7 |
340 | 111 continue |
| 341 | close(20) |
| 342 | * |
| 7a76a12e |
343 | OPEN(UNIT=21,FILE='discnew.all',STATUS='OLD',ERR=91) |
| 344 | do 112 nn=1,34 |
| b6d061b7 |
345 | read (21,*) rrr(nn), daq(nn) |
| 346 | 112 continue |
| 7a76a12e |
347 | do 113 nn=1,34 |
| b6d061b7 |
348 | read (21,*) rrrg(nn), dag(nn) |
| 349 | 113 continue |
| 350 | close(21) |
| 351 | * |
| 352 | goto 888 |
| 353 | 90 PRINT*, 'input - output error' |
| 354 | 91 PRINT*, 'input - output error #2' |
| 355 | 888 continue |
| 356 | |
| 357 | end |
| 358 | |
| 7a76a12e |
359 | |
| b6d061b7 |
360 | ======================================================================= |
| 361 | |
| 362 | Adapted to ROOT macro by A. Dainese - 13/07/2003 |
| 7a76a12e |
363 | Ported to class by C. Loizides - 12/02/2004 |
| 364 | New version for extended R values added - 06/03/2004 |
| b6d061b7 |
365 | */ |
| 366 | |
| 367 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, Double_t rrrr,Double_t xxxx, |
| 368 | Double_t &continuous,Double_t &discrete) const |
| 369 | { |
| 370 | // Calculate Multiple Scattering approx. |
| 371 | // weights for given parton type, |
| 372 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 |
| 373 | |
| 7a76a12e |
374 | //set result to zero |
| 375 | continuous=0.; |
| 376 | discrete=0.; |
| 377 | |
| b6d061b7 |
378 | // read-in data before first call |
| 379 | if(!fTablesLoaded){ |
| 380 | Error("CalcMult","Tables are not loaded."); |
| 381 | return -1; |
| 382 | } |
| 383 | if(!fMultSoft){ |
| 384 | Error("CalcMult","Tables are not loaded for Multiple Scattering."); |
| 385 | return -1; |
| 386 | } |
| 387 | |
| 388 | Double_t rrin = rrrr; |
| 389 | Double_t xxin = xxxx; |
| 390 | |
| 7a76a12e |
391 | if(xxin>fxx[260]) return -1; |
| b6d061b7 |
392 | Int_t nxlow = (Int_t)(xxin/0.01) + 1; |
| 393 | Int_t nxhigh = nxlow + 1; |
| 394 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.01; |
| 395 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.01; |
| 396 | |
| 397 | //why this? |
| 7a76a12e |
398 | if(rrin<=frrr[33]) rrin = 1.05*frrr[33]; // AD |
| b6d061b7 |
399 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
| 400 | |
| 401 | Int_t nrlow=0,nrhigh=0; |
| 402 | Double_t rrhigh=0,rrlow=0; |
| 7a76a12e |
403 | for(Int_t nr=1; nr<=34; nr++) { |
| b6d061b7 |
404 | if(rrin<frrr[nr-1]) { |
| 405 | rrhigh = frrr[nr-1]; |
| 406 | } else { |
| 407 | rrhigh = frrr[nr-1-1]; |
| 408 | rrlow = frrr[nr-1]; |
| 409 | nrlow = nr; |
| 410 | nrhigh = nr-1; |
| 411 | break; |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | rrin = rrrr; // AD |
| 416 | |
| 417 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); |
| 418 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); |
| 419 | |
| 7a76a12e |
420 | if(rrin>1.e4){ |
| 421 | rfraclow = TMath::Log2(rrhigh/rrin)/TMath::Log2(rrhigh/rrlow); |
| 422 | rfrachigh = TMath::Log2(rrin/rrlow)/TMath::Log2(rrhigh/rrlow); |
| 423 | } |
| 424 | if((ipart==1) && (rrin>=frrr[0])) |
| 425 | { |
| 426 | nrlow=1; |
| 427 | nrhigh=1; |
| 428 | rfraclow=1.; |
| 429 | rfrachigh=0.; |
| 430 | } |
| 431 | if((ipart==2) && (rrin>=frrrg[0])) |
| 432 | { |
| 433 | nrlow=1; |
| 434 | nrhigh=1; |
| 435 | rfraclow=1.; |
| 436 | rfrachigh=0.; |
| 437 | } |
| 438 | |
| b6d061b7 |
439 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
| 440 | |
| 441 | Double_t clow=0,chigh=0; |
| 442 | if(ipart==1) { |
| 443 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; |
| 444 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; |
| 445 | } else { |
| 446 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; |
| 447 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; |
| 448 | } |
| 449 | |
| 450 | continuous = rfraclow*clow + rfrachigh*chigh; |
| 451 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", |
| 452 | // rfraclow,clow,rfrachigh,chigh,continuous); |
| 453 | |
| 454 | if(ipart==1) { |
| 455 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; |
| 456 | } else { |
| 457 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; |
| 458 | } |
| 459 | |
| 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | Int_t AliQuenchingWeights::InitSingleHard(const Char_t *contall,const Char_t *discall) |
| 464 | { |
| 465 | // read in tables for Single Hard Approx. |
| 466 | // path to continuum and to discrete part |
| 467 | |
| 468 | fTablesLoaded = kFALSE; |
| 469 | fMultSoft=kFALSE; |
| 470 | |
| 471 | Char_t fname[1024]; |
| 472 | sprintf(fname,"%s",gSystem->ExpandPathName(contall)); |
| bb545331 |
473 | //PH ifstream fincont(fname); |
| 474 | fstream fincont(fname,ios::in); |
| 475 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 476 | if(!fincont.rdbuf()->is_open()) return -1; |
| 477 | #else |
| b6d061b7 |
478 | if(!fincont.is_open()) return -1; |
| bb545331 |
479 | #endif |
| b6d061b7 |
480 | |
| 481 | Int_t nn=0; //quarks |
| 482 | while(fincont>>fxx[nn]>>fcaq[0][nn]>>fcaq[1][nn]>>fcaq[2][nn]>>fcaq[3][nn]>> |
| 483 | fcaq[4][nn]>>fcaq[5][nn]>>fcaq[6][nn]>>fcaq[7][nn]>>fcaq[8][nn]>> |
| 484 | fcaq[9][nn]>>fcaq[10][nn]>>fcaq[11][nn]>>fcaq[12][nn]>> |
| 485 | fcaq[13][nn]>> |
| 486 | fcaq[14][nn]>>fcaq[15][nn]>>fcaq[16][nn]>>fcaq[17][nn]>> |
| 487 | fcaq[18][nn]>> |
| 488 | fcaq[19][nn]>>fcaq[20][nn]>>fcaq[21][nn]>>fcaq[22][nn]>> |
| 489 | fcaq[23][nn]>> |
| 490 | fcaq[24][nn]>>fcaq[25][nn]>>fcaq[26][nn]>>fcaq[27][nn]>> |
| 491 | fcaq[28][nn]>> |
| 492 | fcaq[29][nn]) |
| 493 | { |
| 494 | nn++; |
| 495 | if(nn==261) break; |
| 496 | } |
| 497 | |
| 498 | nn=0; //gluons |
| 499 | while(fincont>>fxxg[nn]>>fcag[0][nn]>>fcag[1][nn]>>fcag[2][nn]>>fcag[3][nn]>> |
| 500 | fcag[4][nn]>>fcag[5][nn]>>fcag[6][nn]>>fcag[7][nn]>>fcag[8][nn]>> |
| 501 | fcag[9][nn]>>fcag[10][nn]>>fcag[11][nn]>>fcag[12][nn]>> |
| 502 | fcag[13][nn]>> |
| 503 | fcag[14][nn]>>fcag[15][nn]>>fcag[16][nn]>>fcag[17][nn]>> |
| 504 | fcag[18][nn]>> |
| 505 | fcag[19][nn]>>fcag[20][nn]>>fcag[21][nn]>>fcag[22][nn]>> |
| 506 | fcag[23][nn]>> |
| 507 | fcag[24][nn]>>fcag[25][nn]>>fcag[26][nn]>>fcag[27][nn]>> |
| 508 | fcag[28][nn]>> |
| 509 | fcag[29][nn]) { |
| 510 | nn++; |
| 511 | if(nn==261) break; |
| 512 | } |
| 513 | fincont.close(); |
| 514 | |
| 515 | sprintf(fname,"%s",gSystem->ExpandPathName(discall)); |
| bb545331 |
516 | //PH ifstream findisc(fname); |
| 517 | fstream findisc(fname,ios::in); |
| 518 | #if defined(__HP_aCC) || defined(__DECCXX) |
| 519 | if(!findisc.rdbuf()->is_open()) return -1; |
| 520 | #else |
| b6d061b7 |
521 | if(!findisc.is_open()) return -1; |
| bb545331 |
522 | #endif |
| b6d061b7 |
523 | |
| 524 | nn=0; //quarks |
| 525 | while(findisc>>frrr[nn]>>fdaq[nn]) { |
| 526 | nn++; |
| 527 | if(nn==30) break; |
| 528 | } |
| 529 | nn=0; //gluons |
| 530 | while(findisc>>frrrg[nn]>>fdag[nn]) { |
| 531 | nn++; |
| 532 | if(nn==30) break; |
| 533 | } |
| 534 | findisc.close(); |
| 535 | |
| 536 | fTablesLoaded = kTRUE; |
| 537 | return 0; |
| 538 | } |
| 539 | |
| 540 | /* |
| 541 | C*************************************************************************** |
| 542 | C Quenching Weights for Single Hard Scattering |
| 543 | C February 20, 2003 |
| 544 | C |
| 545 | C Refs: |
| 546 | C |
| 547 | C Carlos A. Salgado and Urs A. Wiedemann, hep-ph/0302184. |
| 548 | C |
| 549 | C Carlos A. Salgado and Urs A. Wiedemann Phys.Rev.Lett.89:092303,2002. |
| 550 | C |
| 551 | C |
| 552 | C This package contains quenching weights for gluon radiation in the |
| 553 | C single hard scattering approximation. |
| 554 | C |
| 555 | C swqlin returns the quenching weight for a quark (ipart=1) or |
| 556 | C a gluon (ipart=2) traversing a medium with Debye screening mass mu and |
| 557 | C length L. The input values are rrrr=0.5*mu^2*L^2 and xxxx=w/wc, where |
| 558 | C wc=0.5*mu^2*L and w is the energy radiated. The output values are |
| 559 | C the continuous and discrete (prefactor of the delta function) parts |
| 560 | C of the quenching weights. |
| 561 | C |
| 562 | C In order to use this routine, the files contlin.all and disclin.all |
| 563 | C need to be in the working directory. |
| 564 | C |
| 565 | C An initialization of the tables is needed by doing call initlin before |
| 566 | C using swqlin. |
| 567 | C |
| 568 | C Please, send us any comment: |
| 569 | C |
| 570 | C urs.wiedemann@cern.ch |
| 571 | C carlos.salgado@cern.ch |
| 572 | C |
| 573 | C |
| 574 | C------------------------------------------------------------------- |
| 575 | |
| 576 | |
| 577 | SUBROUTINE swqlin(ipart,rrrr,xxxx,continuous,discrete) |
| 578 | * |
| 579 | REAL*8 xx(400), dalq(30), calq(30,261), rrr(30) |
| 580 | COMMON /datalinqua/ xx, dalq, calq, rrr |
| 581 | * |
| 582 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) |
| 583 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg |
| 584 | |
| 585 | REAL*8 rrrr,xxxx, continuous, discrete |
| 586 | REAL*8 rrin, xxin |
| 587 | INTEGER nrlow, nrhigh, nxlow, nxhigh |
| 588 | REAL*8 rrhigh, rrlow, rfraclow, rfrachigh |
| 589 | REAL*8 xfraclow, xfrachigh |
| 590 | REAL*8 clow, chigh |
| 591 | * |
| 592 | rrin = rrrr |
| 593 | xxin = xxxx |
| 594 | * |
| 595 | nxlow = int(xxin/0.038) + 1 |
| 596 | nxhigh = nxlow + 1 |
| 597 | xfraclow = (xx(nxhigh)-xxin)/0.038 |
| 598 | xfrachigh = (xxin - xx(nxlow))/0.038 |
| 599 | * |
| 600 | do 666, nr=1,30 |
| 601 | if (rrin.lt.rrr(nr)) then |
| 602 | rrhigh = rrr(nr) |
| 603 | else |
| 604 | rrhigh = rrr(nr-1) |
| 605 | rrlow = rrr(nr) |
| 606 | nrlow = nr |
| 607 | nrhigh = nr-1 |
| 608 | goto 665 |
| 609 | endif |
| 610 | 666 enddo |
| 611 | 665 continue |
| 612 | * |
| 613 | rfraclow = (rrhigh-rrin)/(rrhigh-rrlow) |
| 614 | rfrachigh = (rrin-rrlow)/(rrhigh-rrlow) |
| 615 | * |
| 616 | if(ipart.eq.1) then |
| 617 | clow = xfraclow*calq(nrlow,nxlow)+xfrachigh*calq(nrlow,nxhigh) |
| 618 | chigh = xfraclow*calq(nrhigh,nxlow)+xfrachigh*calq(nrhigh,nxhigh) |
| 619 | else |
| 620 | clow = xfraclow*calg(nrlow,nxlow)+xfrachigh*calg(nrlow,nxhigh) |
| 621 | chigh = xfraclow*calg(nrhigh,nxlow)+xfrachigh*calg(nrhigh,nxhigh) |
| 622 | endif |
| 623 | |
| 624 | continuous = rfraclow*clow + rfrachigh*chigh |
| 625 | |
| 626 | if(ipart.eq.1) then |
| 627 | discrete = rfraclow*dalq(nrlow) + rfrachigh*dalq(nrhigh) |
| 628 | else |
| 629 | discrete = rfraclow*dalg(nrlow) + rfrachigh*dalg(nrhigh) |
| 630 | endif |
| 631 | * |
| 632 | END |
| 633 | |
| 634 | subroutine initlin |
| 635 | REAL*8 xxlq(400), dalq(30), calq(30,261), rrr(30) |
| 636 | COMMON /datalinqua/ xxlq, dalq, calq, rrr |
| 637 | * |
| 638 | REAL*8 xxlg(400), dalg(30), calg(30,261), rrrlg(30) |
| 639 | COMMON /datalinglu/ xxlg, dalg, calg, rrrlg |
| 640 | * |
| 641 | OPEN(UNIT=20,FILE='contlin.all',STATUS='OLD',ERR=90) |
| 642 | do 110 nn=1,261 |
| 643 | read (20,*) xxlq(nn), calq(1,nn), calq(2,nn), calq(3,nn), |
| 644 | + calq(4,nn), calq(5,nn), calq(6,nn), calq(7,nn), calq(8,nn), |
| 645 | + calq(9,nn), calq(10,nn), calq(11,nn), calq(12,nn), |
| 646 | + calq(13,nn), |
| 647 | + calq(14,nn), calq(15,nn), calq(16,nn), calq(17,nn), |
| 648 | + calq(18,nn), |
| 649 | + calq(19,nn), calq(20,nn), calq(21,nn), calq(22,nn), |
| 650 | + calq(23,nn), |
| 651 | + calq(24,nn), calq(25,nn), calq(26,nn), calq(27,nn), |
| 652 | + calq(28,nn), |
| 653 | + calq(29,nn), calq(30,nn) |
| 654 | 110 continue |
| 655 | do 111 nn=1,261 |
| 656 | read (20,*) xxlg(nn), calg(1,nn), calg(2,nn), calg(3,nn), |
| 657 | + calg(4,nn), calg(5,nn), calg(6,nn), calg(7,nn), calg(8,nn), |
| 658 | + calg(9,nn), calg(10,nn), calg(11,nn), calg(12,nn), |
| 659 | + calg(13,nn), |
| 660 | + calg(14,nn), calg(15,nn), calg(16,nn), calg(17,nn), |
| 661 | + calg(18,nn), |
| 662 | + calg(19,nn), calg(20,nn), calg(21,nn), calg(22,nn), |
| 663 | + calg(23,nn), |
| 664 | + calg(24,nn), calg(25,nn), calg(26,nn), calg(27,nn), |
| 665 | + calg(28,nn), |
| 666 | + calg(29,nn), calg(30,nn) |
| 667 | 111 continue |
| 668 | close(20) |
| 669 | * |
| 670 | OPEN(UNIT=21,FILE='disclin.all',STATUS='OLD',ERR=91) |
| 671 | do 112 nn=1,30 |
| 672 | read (21,*) rrr(nn), dalq(nn) |
| 673 | 112 continue |
| 674 | do 113 nn=1,30 |
| 675 | read (21,*) rrrlg(nn), dalg(nn) |
| 676 | 113 continue |
| 677 | close(21) |
| 678 | * |
| 679 | goto 888 |
| 680 | 90 PRINT*, 'input - output error' |
| 681 | 91 PRINT*, 'input - output error #2' |
| 682 | 888 continue |
| 683 | |
| 684 | end |
| 685 | |
| 686 | ======================================================================= |
| 687 | |
| 688 | Ported to class by C. Loizides - 17/02/2004 |
| 689 | |
| 690 | */ |
| 691 | |
| 692 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, Double_t rrrr,Double_t xxxx, |
| 693 | Double_t &continuous,Double_t &discrete) const |
| 694 | { |
| 695 | // calculate Single Hard approx. |
| 696 | // weights for given parton type, |
| 697 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L |
| 698 | |
| 699 | // read-in data before first call |
| 700 | if(!fTablesLoaded){ |
| 701 | Error("CalcMult","Tables are not loaded."); |
| 702 | return -1; |
| 703 | } |
| 704 | if(!fMultSoft){ |
| 705 | Error("CalcMult","Tables are not loaded for Single Hard Scattering."); |
| 706 | return -1; |
| 707 | } |
| 708 | |
| 709 | Double_t rrin = rrrr; |
| 710 | Double_t xxin = xxxx; |
| 711 | |
| 712 | Int_t nxlow = (Int_t)(xxin/0.038) + 1; |
| 713 | Int_t nxhigh = nxlow + 1; |
| 714 | Double_t xfraclow = (fxx[nxhigh-1]-xxin)/0.038; |
| 715 | Double_t xfrachigh = (xxin - fxx[nxlow-1])/0.038; |
| 716 | |
| 717 | //why this? |
| 718 | if(rrin<=frrr[29]) rrin = 1.05*frrr[29]; // AD |
| 719 | if(rrin>=frrr[0]) rrin = 0.95*frrr[0]; // AD |
| 720 | |
| 721 | Int_t nrlow=0,nrhigh=0; |
| 722 | Double_t rrhigh=0,rrlow=0; |
| 723 | for(Int_t nr=1; nr<=30; nr++) { |
| 724 | if(rrin<frrr[nr-1]) { |
| 725 | rrhigh = frrr[nr-1]; |
| 726 | } else { |
| 727 | rrhigh = frrr[nr-1-1]; |
| 728 | rrlow = frrr[nr-1]; |
| 729 | nrlow = nr; |
| 730 | nrhigh = nr-1; |
| 731 | break; |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | rrin = rrrr; // AD |
| 736 | |
| 737 | Double_t rfraclow = (rrhigh-rrin)/(rrhigh-rrlow); |
| 738 | Double_t rfrachigh = (rrin-rrlow)/(rrhigh-rrlow); |
| 739 | |
| 740 | //printf("R = %f,\nRlow = %f, Rhigh = %f,\nRfraclow = %f, Rfrachigh = %f\n",rrin,rrlow,rrhigh,rfraclow,rfrachigh); // AD |
| 741 | |
| 742 | Double_t clow=0,chigh=0; |
| 743 | if(ipart==1) { |
| 744 | clow = xfraclow*fcaq[nrlow-1][nxlow-1]+xfrachigh*fcaq[nrlow-1][nxhigh-1]; |
| 745 | chigh = xfraclow*fcaq[nrhigh-1][nxlow-1]+xfrachigh*fcaq[nrhigh-1][nxhigh-1]; |
| 746 | } else { |
| 747 | clow = xfraclow*fcag[nrlow-1][nxlow-1]+xfrachigh*fcag[nrlow-1][nxhigh-1]; |
| 748 | chigh = xfraclow*fcag[nrhigh-1][nxlow-1]+xfrachigh*fcag[nrhigh-1][nxhigh-1]; |
| 749 | } |
| 750 | |
| 751 | continuous = rfraclow*clow + rfrachigh*chigh; |
| 752 | //printf("rfraclow %f, clow %f, rfrachigh %f, chigh %f,\n continuous %f\n", |
| 753 | // rfraclow,clow,rfrachigh,chigh,continuous); |
| 754 | |
| 755 | if(ipart==1) { |
| 756 | discrete = rfraclow*fdaq[nrlow-1] + rfrachigh*fdaq[nrhigh-1]; |
| 757 | } else { |
| 758 | discrete = rfraclow*fdag[nrlow-1] + rfrachigh*fdag[nrhigh-1]; |
| 759 | } |
| 760 | |
| 761 | return 0; |
| 762 | } |
| 763 | |
| 764 | Int_t AliQuenchingWeights::CalcMult(Int_t ipart, |
| 765 | Double_t w,Double_t qtransp,Double_t length, |
| 766 | Double_t &continuous,Double_t &discrete) const |
| 767 | { |
| 7a76a12e |
768 | // Calculate Multiple Scattering approx. |
| 769 | // weights for given parton type, |
| 770 | // rrrr=0.5*q*L^3 and xxxx=w/wc, wc=0.5*q*L^2 |
| 771 | |
| b6d061b7 |
772 | Double_t wc=CalcWC(qtransp,length); |
| 773 | Double_t rrrr=CalcR(wc,length); |
| 774 | Double_t xxxx=w/wc; |
| 775 | return CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 776 | } |
| 777 | |
| 778 | Int_t AliQuenchingWeights::CalcSingleHard(Int_t ipart, |
| 779 | Double_t w,Double_t mu,Double_t length, |
| 780 | Double_t &continuous,Double_t &discrete) const |
| 781 | { |
| 7a76a12e |
782 | // calculate Single Hard approx. |
| 783 | // weights for given parton type, |
| 784 | // rrrr=0.5*mu^2*L^2 and xxxx=w/wc, wc=0.5*mu^2*L |
| 785 | |
| b6d061b7 |
786 | Double_t wcbar=CalcWCbar(mu,length); |
| 787 | Double_t rrrr=CalcR(wcbar,length); |
| 788 | Double_t xxxx=w/wcbar; |
| 789 | return CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); |
| 790 | } |
| 791 | |
| 792 | Double_t AliQuenchingWeights::CalcR(Double_t wc, Double_t l) const |
| 793 | { |
| 7a76a12e |
794 | //calculate R value and |
| 795 | //check if it is less then maximum |
| 796 | |
| 797 | Double_t R = wc*l*fgkConvFmToInvGeV; |
| 798 | if(R>fgkRMax) { |
| 799 | Warning("CalcR","Value of R = %.2f; should be less than %.2f",R,fgkRMax); |
| b6d061b7 |
800 | return -R; |
| 801 | } |
| 802 | return R; |
| 803 | } |
| 804 | |
| 805 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, Double_t length, Double_t e) const |
| 806 | { |
| 807 | // return DeltaE for MS or SH scattering |
| 808 | // for given parton type, length and energy |
| 809 | // Dependant on ECM (energy constraint method) |
| 810 | // e is used to determine where to set bins to zero. |
| 811 | |
| 812 | if(!fHistos){ |
| 813 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); |
| 814 | return -1000.; |
| 815 | } |
| 816 | if((ipart<1) || (ipart>2)) { |
| 817 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); |
| 818 | return -1000; |
| 819 | } |
| 820 | |
| 821 | Int_t l=(Int_t)length; |
| 822 | if((length-(Double_t)l)>0.5) l++; |
| 823 | if(l<=0) return 0.; |
| 824 | if(l>fLengthMax) l=fLengthMax; |
| 825 | |
| 826 | if(fECMethod==kReweight){ |
| 827 | TH1F *dummy=new TH1F(*fHistos[ipart-1][l-1]); |
| 828 | dummy->SetName("dummy"); |
| 829 | for(Int_t bin=dummy->FindBin(e)+1;bin<=1100;bin++){ |
| 830 | dummy->SetBinContent(bin,0.); |
| 831 | } |
| 832 | dummy->Scale(1./dummy->Integral()); |
| 833 | Double_t ret=dummy->GetRandom(); |
| 834 | delete dummy; |
| 835 | return ret; |
| 836 | //****** !! ALTERNATIVE WAY OF DOING IT !! *** |
| 837 | //Double_t ret = 2.*e; |
| 838 | //while(ret>e) ret=fHistos[ipart-1][l-1]->GetRandom(); |
| 839 | //return ret; |
| 840 | //******************************************** |
| 841 | } else { //kDefault |
| 842 | Double_t ret=fHistos[ipart-1][l-1]->GetRandom(); |
| 843 | if(ret>e) return e; |
| 844 | return ret; |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, Double_t length, Double_t e) const |
| 849 | { |
| 850 | //return quenched parton energy |
| 851 | //for given parton type, length and energy |
| 852 | |
| 853 | Double_t loss=GetELossRandom(ipart,length,e); |
| 854 | return e-loss; |
| 855 | } |
| 856 | |
| e99e3ed5 |
857 | Double_t AliQuenchingWeights::GetELossRandom(Int_t ipart, TH1F *hell, Double_t e) const |
| b6d061b7 |
858 | { |
| 7a76a12e |
859 | // return DeltaE for MS or SH scattering |
| 860 | // for given parton type, length distribution and energy |
| 861 | // Dependant on ECM (energy constraint method) |
| 862 | // e is used to determine where to set bins to zero. |
| 863 | |
| b6d061b7 |
864 | if(!hell){ |
| 865 | Warning("GetELossRandom","Pointer to length distribution is NULL."); |
| 866 | return 0.; |
| 867 | } |
| 868 | Double_t ell=hell->GetRandom(); |
| 869 | return GetELossRandom(ipart,ell,e); |
| 870 | } |
| 871 | |
| 872 | Double_t AliQuenchingWeights::CalcQuenchedEnergy(Int_t ipart, TH1F *hell, Double_t e) const |
| 873 | { |
| 874 | //return quenched parton energy |
| 875 | //for given parton type, length distribution and energy |
| 876 | |
| 877 | Double_t loss=GetELossRandom(ipart,hell,e); |
| 878 | return e-loss; |
| 879 | } |
| 880 | |
| 881 | Int_t AliQuenchingWeights::SampleEnergyLoss() |
| 882 | { |
| 883 | // Has to be called to fill the histograms |
| 884 | // |
| 885 | // For stored values fQTransport loop over |
| 886 | // particle type and length = 1 to fMaxLength (fm) |
| 887 | // to fill energy loss histos |
| 888 | // |
| 889 | // Take histogram of continuous weights |
| 890 | // Take discrete_weight |
| 891 | // If discrete_weight > 1, put all channels to 0, except channel 1 |
| 892 | // Fill channel 1 with discrete_weight/(1-discrete_weight)*integral |
| 893 | |
| 894 | // read-in data before first call |
| 895 | if(!fTablesLoaded){ |
| 896 | Error("CalcMult","Tables are not loaded."); |
| 897 | return -1; |
| 898 | } |
| 899 | |
| 900 | if(fMultSoft) { |
| 901 | Int_t lmax=CalcLengthMax(fQTransport); |
| 902 | if(fLengthMax>lmax){ |
| 7a76a12e |
903 | Info("SampleEnergyLoss","Maximum length changed from %d to %d;\nin order to have R < %.f",fLengthMax,lmax,fgkRMax); |
| b6d061b7 |
904 | fLengthMax=lmax; |
| 905 | } |
| 906 | } else { |
| 907 | Warning("SampleEnergyLoss","Maximum length not checked,\nbecause SingeHard is not yet tested."); |
| 908 | } |
| 909 | |
| 910 | Reset(); |
| 911 | fHistos=new TH1F**[2]; |
| 912 | fHistos[0]=new TH1F*[fLengthMax]; |
| 913 | fHistos[1]=new TH1F*[fLengthMax]; |
| 914 | fLengthMaxOld=fLengthMax; //remember old value in case |
| 915 | //user wants to reset |
| 916 | |
| 917 | Int_t medvalue=0; |
| 918 | Char_t meddesc[100]; |
| 919 | if(fMultSoft) { |
| 920 | medvalue=(Int_t)(fQTransport*1000.); |
| 921 | sprintf(meddesc,"MS"); |
| 922 | } else { |
| 923 | medvalue=(Int_t)(fMu*1000.); |
| 924 | sprintf(meddesc,"SH"); |
| 925 | } |
| 926 | |
| 927 | for(Int_t ipart=1;ipart<=2;ipart++){ |
| 928 | for(Int_t l=1;l<=fLengthMax;l++){ |
| 929 | |
| 930 | Char_t hname[100]; |
| 931 | sprintf(hname,"hDisc-ContQW_%s_%d_%d_%d_%d",meddesc,fInstanceNumber,ipart,medvalue,l); |
| 932 | Double_t wc = CalcWC(l); |
| 933 | fHistos[ipart-1][l-1] = new TH1F(hname,hname,1100,0.,1.1*wc); |
| 934 | fHistos[ipart-1][l-1]->SetXTitle("#Delta E [GeV]"); |
| 935 | fHistos[ipart-1][l-1]->SetYTitle("p(#Delta E)"); |
| 936 | fHistos[ipart-1][l-1]->SetLineColor(4); |
| 937 | |
| 938 | Double_t rrrr = CalcR(wc,l); |
| 939 | Double_t discrete=0.; |
| 940 | // loop on histogram channels |
| 941 | for(Int_t bin=1; bin<=1100; bin++) { |
| 942 | Double_t xxxx = fHistos[ipart-1][l-1]->GetBinCenter(bin)/wc; |
| 943 | Double_t continuous; |
| 944 | CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 945 | fHistos[ipart-1][l-1]->SetBinContent(bin,continuous); |
| 946 | } |
| 947 | // add discrete part to distribution |
| 948 | if(discrete>=1.) |
| 949 | for(Int_t bin=2;bin<=1100;bin++) |
| 950 | fHistos[ipart-1][l-1]->SetBinContent(bin,0.); |
| 951 | else { |
| 952 | Double_t val=discrete/(1.-discrete)*fHistos[ipart-1][l-1]->Integral(1,1100); |
| 953 | fHistos[ipart-1][l-1]->Fill(0.,val); |
| 954 | } |
| 955 | Double_t hint=fHistos[ipart-1][l-1]->Integral(1,1100); |
| 956 | fHistos[ipart-1][l-1]->Scale(1./hint); |
| 957 | } |
| 958 | } |
| 959 | return 0; |
| 960 | } |
| 961 | |
| 962 | const TH1F* AliQuenchingWeights::GetHisto(Int_t ipart,Int_t l) const |
| 963 | { |
| 7a76a12e |
964 | //return quenching histograms |
| 965 | //for ipart and length |
| 966 | |
| b6d061b7 |
967 | if(!fHistos){ |
| 968 | Fatal("GetELossRandom","Call SampleEnergyLoss method before!"); |
| 969 | return 0; |
| 970 | } |
| 971 | if((ipart<1) || (ipart>2)) { |
| 972 | Fatal("GetELossRandom","ipart =%d; but has to be 1 (quark) or 2 (gluon)",ipart); |
| 973 | return 0; |
| 974 | } |
| 975 | |
| 976 | if(l<=0) return 0; |
| 977 | if(l>fLengthMax) l=fLengthMax; |
| 978 | |
| 979 | return fHistos[ipart-1][l-1]; |
| 980 | } |
| 981 | |
| 982 | TH1F* AliQuenchingWeights::ComputeQWHisto(Int_t ipart,Double_t medval,Double_t length) const |
| 983 | { |
| 984 | // ipart = 1 for quark, 2 for gluon |
| 985 | // medval a) qtransp = transport coefficient (GeV^2/fm) |
| 986 | // b) mu = Debye mass (GeV) |
| 987 | // length = path length in medium (fm) |
| 988 | // Get from SW tables: |
| 989 | // - discrete weight (probability to have NO energy loss) |
| 990 | // - continuous weight, as a function of dE |
| 991 | // compute up to max dE = 1.1*wc |
| 992 | // (as an histogram named hContQW_<ipart>_<medval*1000>_<l> |
| 993 | // and range [0,1.1*wc] (1100 channels) |
| 994 | |
| 995 | Double_t wc = 0; |
| 996 | Char_t meddesc[100]; |
| 997 | if(fMultSoft) { |
| 998 | wc=CalcWC(medval,length); |
| 999 | sprintf(meddesc,"MS"); |
| 1000 | } else { |
| 1001 | wc=CalcWCbar(medval,length); |
| 1002 | sprintf(meddesc,"SH"); |
| 1003 | } |
| 1004 | |
| 1005 | Char_t hname[100]; |
| 1006 | sprintf(hname,"hContQWHisto_%s_%d_%d_%d",meddesc,ipart, |
| 1007 | (Int_t)(medval*1000.),(Int_t)length); |
| 1008 | |
| 1009 | TH1F *hist = new TH1F("hist",hname,1100,0.,1.1*wc); |
| 1010 | hist->SetXTitle("#Delta E [GeV]"); |
| 1011 | hist->SetYTitle("p(#Delta E)"); |
| 1012 | hist->SetLineColor(4); |
| 1013 | |
| 1014 | Double_t rrrr = CalcR(wc,length); |
| 1015 | // loop on histogram channels |
| 1016 | for(Int_t bin=1; bin<=1100; bin++) { |
| 1017 | Double_t xxxx = hist->GetBinCenter(bin)/wc; |
| 1018 | Double_t continuous,discrete; |
| 1019 | Int_t ret=0; |
| 1020 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 1021 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); |
| 1022 | if(ret!=0){ |
| 1023 | delete hist; |
| 1024 | return 0; |
| 1025 | }; |
| 1026 | hist->SetBinContent(bin,continuous); |
| 1027 | } |
| 1028 | return hist; |
| 1029 | } |
| 1030 | |
| 1031 | TH1F* AliQuenchingWeights::ComputeQWHistoX(Int_t ipart,Double_t medval,Double_t length) const |
| 1032 | { |
| 1033 | // ipart = 1 for quark, 2 for gluon |
| 1034 | // medval a) qtransp = transport coefficient (GeV^2/fm) |
| 1035 | // b) mu = Debye mass (GeV) |
| 1036 | // length = path length in medium (fm) |
| 1037 | // Get from SW tables: |
| 1038 | // - discrete weight (probability to have NO energy loss) |
| 1039 | // - continuous weight, as a function of dE |
| 1040 | // compute up to max dE = 1.1*wc |
| 1041 | // (as an histogram named hContQW_<ipart>_<medval*1000>_<l> |
| 1042 | // and range [0,1.1] (1100 channels) |
| 1043 | |
| 1044 | Double_t wc = 0; |
| 1045 | Char_t meddesc[100]; |
| 1046 | if(fMultSoft) { |
| 1047 | wc=CalcWC(medval,length); |
| 1048 | sprintf(meddesc,"MS"); |
| 1049 | } else { |
| 1050 | wc=CalcWCbar(medval,length); |
| 1051 | sprintf(meddesc,"SH"); |
| 1052 | } |
| 1053 | |
| 1054 | Char_t hname[100]; |
| 1055 | sprintf(hname,"hContQWHistox_%s_%d_%d_%d",meddesc,ipart, |
| 1056 | (Int_t)(medval*1000.),(Int_t)length); |
| 1057 | |
| 1058 | TH1F *histx = new TH1F("histx",hname,1100,0.,1.1); |
| 1059 | histx->SetXTitle("x = #Delta E/#omega_{c}"); |
| 1060 | if(fMultSoft) |
| 1061 | histx->SetYTitle("p(#Delta E/#omega_{c})"); |
| 1062 | else |
| 1063 | histx->SetYTitle("p(#Delta E/#bar#omega_{c})"); |
| 1064 | histx->SetLineColor(4); |
| 1065 | |
| 1066 | Double_t rrrr = CalcR(wc,length); |
| 1067 | // loop on histogram channels |
| 1068 | for(Int_t bin=1; bin<=1100; bin++) { |
| 1069 | Double_t xxxx = histx->GetBinCenter(bin); |
| 1070 | Double_t continuous,discrete; |
| 1071 | Int_t ret=0; |
| 1072 | if(fMultSoft) ret=CalcMult(ipart,rrrr,xxxx,continuous,discrete); |
| 1073 | else ret=CalcSingleHard(ipart,rrrr,xxxx,continuous,discrete); |
| 1074 | if(ret!=0){ |
| 1075 | delete histx; |
| 1076 | return 0; |
| 1077 | }; |
| 1078 | histx->SetBinContent(bin,continuous); |
| 1079 | } |
| 1080 | return histx; |
| 1081 | } |
| 1082 | |
| e99e3ed5 |
1083 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,Double_t l,Double_t e) const |
| b6d061b7 |
1084 | { |
| 7a76a12e |
1085 | //compute energy loss histogram for |
| 1086 | //parton type, medium value, length and energy |
| 1087 | |
| b6d061b7 |
1088 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
| 1089 | if(fMultSoft){ |
| 1090 | dummy->SetQTransport(medval); |
| 1091 | dummy->InitMult(); |
| 1092 | } else { |
| 1093 | dummy->SetMu(medval); |
| 1094 | dummy->InitSingleHard(); |
| 1095 | } |
| 1096 | dummy->SampleEnergyLoss(); |
| 1097 | |
| 1098 | Char_t name[100]; |
| 1099 | Char_t hname[100]; |
| 1100 | if(ipart==1){ |
| 1101 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); |
| 1102 | sprintf(hname,"hLossQuarks"); |
| 1103 | } else { |
| 1104 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); |
| 1105 | sprintf(hname,"hLossGluons"); |
| 1106 | } |
| 1107 | |
| 1108 | TH1F *h = new TH1F(hname,name,250,0,250); |
| 1109 | for(Int_t i=0;i<100000;i++){ |
| 1110 | //if(i % 1000 == 0) cout << "." << flush; |
| 1111 | Double_t loss=dummy->GetELossRandom(ipart,l,e); |
| 1112 | h->Fill(loss); |
| 1113 | } |
| 1114 | |
| 1115 | h->SetStats(kTRUE); |
| 1116 | |
| 1117 | delete dummy; |
| 1118 | return h; |
| 1119 | } |
| 1120 | |
| e99e3ed5 |
1121 | TH1F* AliQuenchingWeights::ComputeELossHisto(Int_t ipart,Double_t medval,TH1F *hEll,Double_t e) const |
| b6d061b7 |
1122 | { |
| 7a76a12e |
1123 | //compute energy loss histogram for |
| 1124 | //parton type, medium value, |
| 1125 | //length distribution and energy |
| 1126 | |
| b6d061b7 |
1127 | AliQuenchingWeights *dummy=new AliQuenchingWeights(*this); |
| 1128 | if(fMultSoft){ |
| 1129 | dummy->SetQTransport(medval); |
| 1130 | dummy->InitMult(); |
| 1131 | } else { |
| 1132 | dummy->SetMu(medval); |
| 1133 | dummy->InitSingleHard(); |
| 1134 | } |
| 1135 | dummy->SampleEnergyLoss(); |
| 1136 | |
| 1137 | Char_t name[100]; |
| 1138 | Char_t hname[100]; |
| 1139 | if(ipart==1){ |
| 1140 | sprintf(name,"Energy Loss Distribution - Quarks;E_{loss} (GeV);#"); |
| 1141 | sprintf(hname,"hLossQuarks"); |
| 1142 | } else { |
| 1143 | sprintf(name,"Energy Loss Distribution - Gluons;E_{loss} (GeV);#"); |
| 1144 | sprintf(hname,"hLossGluons"); |
| 1145 | } |
| 1146 | |
| 1147 | TH1F *h = new TH1F(hname,name,250,0,250); |
| 1148 | for(Int_t i=0;i<100000;i++){ |
| 1149 | //if(i % 1000 == 0) cout << "." << flush; |
| 1150 | Double_t loss=dummy->GetELossRandom(ipart,hEll,e); |
| 1151 | h->Fill(loss); |
| 1152 | } |
| 1153 | |
| 1154 | h->SetStats(kTRUE); |
| 1155 | |
| 1156 | delete dummy; |
| 1157 | return h; |
| 1158 | } |
| 1159 | |
| 1160 | void AliQuenchingWeights::PlotDiscreteWeights(Int_t len) const |
| 1161 | { |
| 7a76a12e |
1162 | //plot discrete weights for given length |
| 1163 | |
| b6d061b7 |
1164 | TCanvas *c; |
| 1165 | if(fMultSoft) |
| 1166 | c = new TCanvas("cdiscms","Discrete Weight for Multiple Scattering",0,0,500,400); |
| 1167 | else |
| 1168 | c = new TCanvas("cdiscsh","Discrete Weight for Single Hard Scattering",0,0,500,400); |
| 1169 | c->cd(); |
| 1170 | |
| 1171 | TH2F *hframe = new TH2F("hdisc","",2,0,5.1,2,0,1); |
| 1172 | hframe->SetStats(0); |
| 1173 | if(fMultSoft) |
| 1174 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); |
| 1175 | else |
| 1176 | hframe->SetXTitle("#mu [GeV]"); |
| 1177 | hframe->SetYTitle("Probability #Delta E = 0 , p_{0}"); |
| 1178 | hframe->Draw(); |
| 1179 | |
| 1180 | TGraph *gq=new TGraph(20); |
| 1181 | Int_t i=0; |
| 1182 | if(fMultSoft) { |
| 1183 | for(Double_t q=0.05;q<=5.05;q+=0.25){ |
| 1184 | Double_t disc,cont; |
| 1185 | CalcMult(1,1.0, q, len, cont, disc); |
| 1186 | gq->SetPoint(i,q,disc);i++; |
| 1187 | } |
| 1188 | } else { |
| 1189 | for(Double_t m=0.05;m<=5.05;m+=0.25){ |
| 1190 | Double_t disc,cont; |
| 1191 | CalcSingleHard(1,1.0, m, len, cont, disc); |
| 1192 | gq->SetPoint(i,m,disc);i++; |
| 1193 | } |
| 1194 | } |
| 1195 | gq->SetMarkerStyle(20); |
| 1196 | gq->Draw("pl"); |
| 1197 | |
| 1198 | TGraph *gg=new TGraph(20); |
| 1199 | i=0; |
| 1200 | if(fMultSoft){ |
| 1201 | for(Double_t q=0.05;q<=5.05;q+=0.25){ |
| 1202 | Double_t disc,cont; |
| 1203 | CalcMult(2,1.0, q, 5., cont, disc); |
| 1204 | gg->SetPoint(i,q,disc);i++; |
| 1205 | } |
| 1206 | } else { |
| 1207 | for(Double_t m=0.05;m<=5.05;m+=0.25){ |
| 1208 | Double_t disc,cont; |
| 1209 | CalcSingleHard(2,1.0, m, 5., cont, disc); |
| 1210 | gg->SetPoint(i,m,disc);i++; |
| 1211 | } |
| 1212 | } |
| 1213 | gg->SetMarkerStyle(24); |
| 1214 | gg->Draw("pl"); |
| 1215 | |
| 1216 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1217 | l1a->SetFillStyle(0); |
| 1218 | l1a->SetBorderSize(0); |
| 1219 | Char_t label[100]; |
| 1220 | sprintf(label,"L = %d fm",len); |
| 1221 | l1a->AddEntry(gq,label,""); |
| 1222 | l1a->AddEntry(gq,"quark","pl"); |
| 1223 | l1a->AddEntry(gg,"gluon","pl"); |
| 1224 | l1a->Draw(); |
| 1225 | |
| 1226 | c->Update(); |
| 1227 | } |
| 1228 | |
| 1229 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Int_t ell) const |
| 1230 | { |
| 7a76a12e |
1231 | //plot continous weights for |
| 1232 | //given parton type and length |
| 1233 | |
| b6d061b7 |
1234 | Float_t medvals[3]; |
| 1235 | Char_t title[1024]; |
| 1236 | Char_t name[1024]; |
| 1237 | if(fMultSoft) { |
| 1238 | if(itype==1) |
| 1239 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); |
| 1240 | else if(itype==2) |
| 1241 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); |
| 1242 | else return; |
| 1243 | medvals[0]=4;medvals[1]=1;medvals[2]=0.5; |
| 1244 | sprintf(name,"ccont-ms-%d",itype); |
| 1245 | } else { |
| 1246 | if(itype==1) |
| 1247 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); |
| 1248 | else if(itype==2) |
| 1249 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); |
| 1250 | else return; |
| 1251 | medvals[0]=2;medvals[1]=1;medvals[2]=0.5; |
| 1252 | sprintf(name,"ccont-ms-%d",itype); |
| 1253 | } |
| 1254 | |
| 1255 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1256 | c->cd(); |
| 1257 | TH1F *h1=ComputeQWHisto(itype,medvals[0],ell); |
| 1258 | h1->SetName("h1"); |
| 1259 | h1->SetTitle(title); |
| 1260 | h1->SetStats(0); |
| 1261 | h1->SetLineColor(1); |
| 1262 | h1->DrawCopy(); |
| 1263 | TH1F *h2=ComputeQWHisto(itype,medvals[1],ell); |
| 1264 | h2->SetName("h2"); |
| 1265 | h2->SetLineColor(2); |
| 1266 | h2->DrawCopy("SAME"); |
| 1267 | TH1F *h3=ComputeQWHisto(itype,medvals[2],ell); |
| 1268 | h3->SetName("h3"); |
| 1269 | h3->SetLineColor(3); |
| 1270 | h3->DrawCopy("SAME"); |
| 1271 | |
| 1272 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1273 | l1a->SetFillStyle(0); |
| 1274 | l1a->SetBorderSize(0); |
| 1275 | Char_t label[100]; |
| 1276 | sprintf(label,"L = %d fm",ell); |
| 1277 | l1a->AddEntry(h1,label,""); |
| 1278 | if(fMultSoft) { |
| 1279 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[0]); |
| 1280 | l1a->AddEntry(h1,label,"pl"); |
| 1281 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[1]); |
| 1282 | l1a->AddEntry(h2,label,"pl"); |
| 1283 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medvals[2]); |
| 1284 | l1a->AddEntry(h3,label,"pl"); |
| 1285 | } else { |
| 1286 | sprintf(label,"#mu = %.1f GeV",medvals[0]); |
| 1287 | l1a->AddEntry(h1,label,"pl"); |
| 1288 | sprintf(label,"#mu = %.1f GeV",medvals[1]); |
| 1289 | l1a->AddEntry(h2,label,"pl"); |
| 1290 | sprintf(label,"#mu = %.1f GeV",medvals[2]); |
| 1291 | l1a->AddEntry(h3,label,"pl"); |
| 1292 | } |
| 1293 | l1a->Draw(); |
| 1294 | |
| 1295 | c->Update(); |
| 1296 | } |
| 1297 | |
| 1298 | void AliQuenchingWeights::PlotContWeights(Int_t itype,Double_t medval) const |
| 1299 | { |
| 7a76a12e |
1300 | //plot continous weights for |
| 1301 | //given parton type and medium value |
| 1302 | |
| b6d061b7 |
1303 | Char_t title[1024]; |
| 1304 | Char_t name[1024]; |
| 1305 | if(fMultSoft) { |
| 1306 | if(itype==1) |
| 1307 | sprintf(title,"Cont. Weight for Multiple Scattering - Quarks"); |
| 1308 | else if(itype==2) |
| 1309 | sprintf(title,"Cont. Weight for Multiple Scattering - Gluons"); |
| 1310 | else return; |
| 1311 | sprintf(name,"ccont2-ms-%d",itype); |
| 1312 | } else { |
| 1313 | if(itype==1) |
| 1314 | sprintf(title,"Cont. Weight for Single Hard Scattering - Quarks"); |
| 1315 | else if(itype==2) |
| 1316 | sprintf(title,"Cont. Weight for Single Hard Scattering - Gluons"); |
| 1317 | else return; |
| 1318 | sprintf(name,"ccont2-sh-%d",itype); |
| 1319 | } |
| 1320 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1321 | c->cd(); |
| 1322 | TH1F *h1=ComputeQWHisto(itype,medval,8); |
| 1323 | h1->SetName("h1"); |
| 1324 | h1->SetTitle(title); |
| 1325 | h1->SetStats(0); |
| 1326 | h1->SetLineColor(1); |
| 1327 | h1->DrawCopy(); |
| 1328 | TH1F *h2=ComputeQWHisto(itype,medval,5); |
| 1329 | h2->SetName("h2"); |
| 1330 | h2->SetLineColor(2); |
| 1331 | h2->DrawCopy("SAME"); |
| 1332 | TH1F *h3=ComputeQWHisto(itype,medval,2); |
| 1333 | h3->SetName("h3"); |
| 1334 | h3->SetLineColor(3); |
| 1335 | h3->DrawCopy("SAME"); |
| 1336 | |
| 1337 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1338 | l1a->SetFillStyle(0); |
| 1339 | l1a->SetBorderSize(0); |
| 1340 | Char_t label[100]; |
| 1341 | if(fMultSoft) |
| 1342 | sprintf(label,"#hat{q} = %.1f GeV^{2}/fm",medval); |
| 1343 | else |
| 1344 | sprintf(label,"#mu = %.1f GeV",medval); |
| 1345 | |
| 1346 | l1a->AddEntry(h1,label,""); |
| 1347 | l1a->AddEntry(h1,"L = 8 fm","pl"); |
| 1348 | l1a->AddEntry(h2,"L = 5 fm","pl"); |
| 1349 | l1a->AddEntry(h3,"L = 2 fm","pl"); |
| 1350 | l1a->Draw(); |
| 1351 | |
| 1352 | c->Update(); |
| 1353 | } |
| 1354 | |
| e99e3ed5 |
1355 | void AliQuenchingWeights::PlotAvgELoss(Int_t len,Double_t e) const |
| b6d061b7 |
1356 | { |
| 7a76a12e |
1357 | //plot average energy loss for given length |
| 1358 | //and parton energy |
| 1359 | |
| b6d061b7 |
1360 | if(!fTablesLoaded){ |
| 1361 | Error("CalcMult","Tables are not loaded."); |
| 1362 | return; |
| 1363 | } |
| 1364 | |
| 1365 | Char_t title[1024]; |
| 1366 | Char_t name[1024]; |
| 1367 | if(fMultSoft){ |
| 1368 | sprintf(title,"Average Loss for Multiple Scattering"); |
| 1369 | sprintf(name,"cavgelossms"); |
| 1370 | } else { |
| 1371 | sprintf(title,"Average Loss for Single Hard Scattering"); |
| 1372 | sprintf(name,"cavgelosssh"); |
| 1373 | } |
| 1374 | |
| 1375 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1376 | c->cd(); |
| 1377 | TH2F *hframe = new TH2F("avgloss",title,2,0,5.1,2,0,100); |
| 1378 | hframe->SetStats(0); |
| 1379 | if(fMultSoft) |
| 1380 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); |
| 1381 | else |
| 1382 | hframe->SetXTitle("#mu [GeV]"); |
| 1383 | hframe->SetYTitle("<E_{loss}> [GeV]"); |
| 1384 | hframe->Draw(); |
| 1385 | |
| 1386 | TGraph *gq=new TGraph(20); |
| 1387 | Int_t i=0; |
| 1388 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1389 | TH1F *dummy=ComputeELossHisto(1,v,len,e); |
| 1390 | Double_t avgloss=dummy->GetMean(); |
| 1391 | gq->SetPoint(i,v,avgloss);i++; |
| 1392 | delete dummy; |
| 1393 | } |
| 1394 | gq->SetMarkerStyle(20); |
| 1395 | gq->Draw("pl"); |
| 1396 | |
| 1397 | TGraph *gg=new TGraph(20); |
| 1398 | i=0; |
| 1399 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1400 | TH1F *dummy=ComputeELossHisto(2,v,len,e); |
| 1401 | Double_t avgloss=dummy->GetMean(); |
| 1402 | gg->SetPoint(i,v,avgloss);i++; |
| 1403 | delete dummy; |
| 1404 | } |
| 1405 | gg->SetMarkerStyle(24); |
| 1406 | gg->Draw("pl"); |
| 1407 | |
| 1408 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1409 | l1a->SetFillStyle(0); |
| 1410 | l1a->SetBorderSize(0); |
| 1411 | Char_t label[100]; |
| 1412 | sprintf(label,"L = %d fm",len); |
| 1413 | l1a->AddEntry(gq,label,""); |
| 1414 | l1a->AddEntry(gq,"quark","pl"); |
| 1415 | l1a->AddEntry(gg,"gluon","pl"); |
| 1416 | l1a->Draw(); |
| 1417 | |
| 1418 | c->Update(); |
| 1419 | } |
| 1420 | |
| e99e3ed5 |
1421 | void AliQuenchingWeights::PlotAvgELoss(TH1F *hEll,Double_t e) const |
| b6d061b7 |
1422 | { |
| 7a76a12e |
1423 | //plot average energy loss for given |
| 1424 | //length distribution and parton energy |
| 1425 | |
| b6d061b7 |
1426 | if(!fTablesLoaded){ |
| 1427 | Error("CalcMult","Tables are not loaded."); |
| 1428 | return; |
| 1429 | } |
| 1430 | |
| 1431 | Char_t title[1024]; |
| 1432 | Char_t name[1024]; |
| 1433 | if(fMultSoft){ |
| 1434 | sprintf(title,"Average Loss for Multiple Scattering"); |
| 1435 | sprintf(name,"cavgelossms2"); |
| 1436 | } else { |
| 1437 | sprintf(title,"Average Loss for Single Hard Scattering"); |
| 1438 | sprintf(name,"cavgelosssh2"); |
| 1439 | } |
| 1440 | |
| 1441 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1442 | c->cd(); |
| 1443 | TH2F *hframe = new TH2F("havgloss",title,2,0,5.1,2,0,100); |
| 1444 | hframe->SetStats(0); |
| 1445 | if(fMultSoft) |
| 1446 | hframe->SetXTitle("#hat{q} [GeV^{2}/fm]"); |
| 1447 | else |
| 1448 | hframe->SetXTitle("#mu [GeV]"); |
| 1449 | hframe->SetYTitle("<E_{loss}> [GeV]"); |
| 1450 | hframe->Draw(); |
| 1451 | |
| 1452 | TGraph *gq=new TGraph(20); |
| 1453 | Int_t i=0; |
| 1454 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1455 | TH1F *dummy=ComputeELossHisto(1,v,hEll,e); |
| 1456 | Double_t avgloss=dummy->GetMean(); |
| 1457 | gq->SetPoint(i,v,avgloss);i++; |
| 1458 | delete dummy; |
| 1459 | } |
| 1460 | gq->SetMarkerStyle(20); |
| 1461 | gq->Draw("pl"); |
| 1462 | |
| 1463 | TGraph *gg=new TGraph(20); |
| 1464 | i=0; |
| 1465 | for(Double_t v=0.05;v<=5.05;v+=0.25){ |
| 1466 | TH1F *dummy=ComputeELossHisto(2,v,hEll,e); |
| 1467 | Double_t avgloss=dummy->GetMean(); |
| 1468 | gg->SetPoint(i,v,avgloss);i++; |
| 1469 | delete dummy; |
| 1470 | } |
| 1471 | gg->SetMarkerStyle(24); |
| 1472 | gg->Draw("pl"); |
| 1473 | |
| 1474 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1475 | l1a->SetFillStyle(0); |
| 1476 | l1a->SetBorderSize(0); |
| 1477 | Char_t label[100]; |
| 1478 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); |
| 1479 | l1a->AddEntry(gq,label,""); |
| 1480 | l1a->AddEntry(gq,"quark","pl"); |
| 1481 | l1a->AddEntry(gg,"gluon","pl"); |
| 1482 | l1a->Draw(); |
| 1483 | |
| 1484 | c->Update(); |
| 1485 | } |
| 1486 | |
| 1487 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,Int_t len) const |
| 1488 | { |
| 7a76a12e |
1489 | //plot relative energy loss for given |
| 1490 | //length and parton energy versus pt |
| 1491 | |
| b6d061b7 |
1492 | if(!fTablesLoaded){ |
| 1493 | Error("CalcMult","Tables are not loaded."); |
| 1494 | return; |
| 1495 | } |
| 1496 | |
| 1497 | Char_t title[1024]; |
| 1498 | Char_t name[1024]; |
| 1499 | if(fMultSoft){ |
| 1500 | sprintf(title,"Relative Loss for Multiple Scattering"); |
| 1501 | sprintf(name,"cavgelossvsptms"); |
| 1502 | } else { |
| 1503 | sprintf(title,"Relative Loss for Single Hard Scattering"); |
| 1504 | sprintf(name,"cavgelossvsptsh"); |
| 1505 | } |
| 1506 | |
| 1507 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1508 | c->cd(); |
| 1509 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); |
| 1510 | hframe->SetStats(0); |
| 1511 | hframe->SetXTitle("p_{T} [GeV]"); |
| 1512 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); |
| 1513 | hframe->Draw(); |
| 1514 | |
| 1515 | TGraph *gq=new TGraph(40); |
| 1516 | Int_t i=0; |
| 1517 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1518 | TH1F *dummy=ComputeELossHisto(1,medval,len,pt); |
| 1519 | Double_t avgloss=dummy->GetMean(); |
| 1520 | gq->SetPoint(i,pt,avgloss/pt);i++; |
| 1521 | delete dummy; |
| 1522 | } |
| 1523 | gq->SetMarkerStyle(20); |
| 1524 | gq->Draw("pl"); |
| 1525 | |
| 1526 | TGraph *gg=new TGraph(40); |
| 1527 | i=0; |
| 1528 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1529 | TH1F *dummy=ComputeELossHisto(2,medval,len,pt); |
| 1530 | Double_t avgloss=dummy->GetMean(); |
| 1531 | gg->SetPoint(i,pt,avgloss/pt);i++; |
| 1532 | delete dummy; |
| 1533 | } |
| 1534 | gg->SetMarkerStyle(24); |
| 1535 | gg->Draw("pl"); |
| 1536 | |
| 1537 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1538 | l1a->SetFillStyle(0); |
| 1539 | l1a->SetBorderSize(0); |
| 1540 | Char_t label[100]; |
| 1541 | sprintf(label,"L = %d fm",len); |
| 1542 | l1a->AddEntry(gq,label,""); |
| 1543 | l1a->AddEntry(gq,"quark","pl"); |
| 1544 | l1a->AddEntry(gg,"gluon","pl"); |
| 1545 | l1a->Draw(); |
| 1546 | |
| 1547 | c->Update(); |
| 1548 | } |
| 1549 | |
| 1550 | void AliQuenchingWeights::PlotAvgELossVsPt(Double_t medval,TH1F *hEll) const |
| 1551 | { |
| 7a76a12e |
1552 | //plot relative energy loss for given |
| 1553 | //length distribution and parton energy versus pt |
| 1554 | |
| b6d061b7 |
1555 | if(!fTablesLoaded){ |
| 1556 | Error("CalcMult","Tables are not loaded."); |
| 1557 | return; |
| 1558 | } |
| 1559 | |
| 1560 | Char_t title[1024]; |
| 1561 | Char_t name[1024]; |
| 1562 | if(fMultSoft){ |
| 1563 | sprintf(title,"Relative Loss for Multiple Scattering"); |
| 1564 | sprintf(name,"cavgelossvsptms2"); |
| 1565 | } else { |
| 1566 | sprintf(title,"Relative Loss for Single Hard Scattering"); |
| 1567 | sprintf(name,"cavgelossvsptsh2"); |
| 1568 | } |
| 1569 | TCanvas *c = new TCanvas(name,title,0,0,500,400); |
| 1570 | c->cd(); |
| 1571 | TH2F *hframe = new TH2F("havglossvspt",title,2,0,100,2,0,1); |
| 1572 | hframe->SetStats(0); |
| 1573 | hframe->SetXTitle("p_{T} [GeV]"); |
| 1574 | hframe->SetYTitle("<E_{loss}>/p_{T} [GeV]"); |
| 1575 | hframe->Draw(); |
| 1576 | |
| 1577 | TGraph *gq=new TGraph(40); |
| 1578 | Int_t i=0; |
| 1579 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1580 | TH1F *dummy=ComputeELossHisto(1,medval,hEll,pt); |
| 1581 | Double_t avgloss=dummy->GetMean(); |
| 1582 | gq->SetPoint(i,pt,avgloss/pt);i++; |
| 1583 | delete dummy; |
| 1584 | } |
| 1585 | gq->SetMarkerStyle(20); |
| 1586 | gq->Draw("pl"); |
| 1587 | |
| 1588 | TGraph *gg=new TGraph(40); |
| 1589 | i=0; |
| 1590 | for(Double_t pt=2.5;pt<=100.05;pt+=2.5){ |
| 1591 | TH1F *dummy=ComputeELossHisto(2,medval,hEll,pt); |
| 1592 | Double_t avgloss=dummy->GetMean(); |
| 1593 | gg->SetPoint(i,pt,avgloss/pt);i++; |
| 1594 | delete dummy; |
| 1595 | } |
| 1596 | gg->SetMarkerStyle(24); |
| 1597 | gg->Draw("pl"); |
| 1598 | |
| 1599 | TLegend *l1a = new TLegend(0.5,0.6,.95,0.8); |
| 1600 | l1a->SetFillStyle(0); |
| 1601 | l1a->SetBorderSize(0); |
| 1602 | Char_t label[100]; |
| 1603 | sprintf(label,"<L> = %.2f fm",hEll->GetMean()); |
| 1604 | l1a->AddEntry(gq,label,""); |
| 1605 | l1a->AddEntry(gq,"quark","pl"); |
| 1606 | l1a->AddEntry(gg,"gluon","pl"); |
| 1607 | l1a->Draw(); |
| 1608 | |
| 1609 | c->Update(); |
| 1610 | } |
| 1611 | |
git://git.uio.no / u / mrichter / AliRoot.git / blame