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36b81802 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
7cdba479 16/* $Id$ */
36b81802 17
18// Generator using HIJING as an external generator
19// The main HIJING options are accessable for the user through this interface.
20// Uses the THijing implementation of TGenerator.
14cae7e9 21// Author:
22// Andreas Morsch (andreas.morsch@cern.ch)
36b81802 23//
36b81802 24
3010c308 25#include <TClonesArray.h>
36b81802 26#include <TGraph.h>
27#include <THijing.h>
28#include <TLorentzVector.h>
29#include <TPDGCode.h>
30#include <TParticle.h>
31
32#include "AliGenHijing.h"
33#include "AliGenHijingEventHeader.h"
7cdba479 34#include "AliHijingRndm.h"
3f4e7ad8 35#include "AliLog.h"
36#include "AliRun.h"
36b81802 37
7cdba479 38ClassImp(AliGenHijing)
36b81802 39
40AliGenHijing::AliGenHijing()
9d89c88d 41 :AliGenMC(),
42 fFrame("CMS"),
43 fMinImpactParam(0.),
44 fMaxImpactParam(5.),
45 fKeep(0),
46 fQuench(1),
47 fShadowing(1),
48 fDecaysOff(1),
49 fTrigger(0),
50 fEvaluate(0),
51 fSelectAll(0),
52 fFlavor(0),
9d89c88d 53 fKineBias(0.),
54 fTrials(0),
55 fXsection(0.),
56 fHijing(0),
5bfd0cb7 57 fPtHardMin(2.0),
58 fPtHardMax(-1),
9d89c88d 59 fSpectators(1),
60 fDsigmaDb(0),
61 fDnDb(0),
62 fPtMinJet(-2.5),
63 fEtaMinJet(-20.),
64 fEtaMaxJet(+20.),
65 fPhiMinJet(0.),
66 fPhiMaxJet(2. * TMath::Pi()),
67 fRadiation(3),
68 fSimpleJet(kFALSE),
69 fNoGammas(kFALSE),
70 fProjectileSpecn(0),
71 fProjectileSpecp(0),
72 fTargetSpecn(0),
73 fTargetSpecp(0),
74 fLHC(kFALSE),
75 fRandomPz(kFALSE),
d07f0af2 76 fNoHeavyQuarks(kFALSE),
77 fEventTime(0.)
36b81802 78{
fc7e1b1c 79 // Constructor
e7c989e4 80 fEnergyCMS = 5500.;
fc7e1b1c 81 AliHijingRndm::SetHijingRandom(GetRandom());
36b81802 82}
83
84AliGenHijing::AliGenHijing(Int_t npart)
9d89c88d 85 :AliGenMC(npart),
86 fFrame("CMS"),
87 fMinImpactParam(0.),
88 fMaxImpactParam(5.),
89 fKeep(0),
90 fQuench(1),
91 fShadowing(1),
92 fDecaysOff(1),
93 fTrigger(0),
94 fEvaluate(0),
95 fSelectAll(0),
96 fFlavor(0),
9d89c88d 97 fKineBias(0.),
98 fTrials(0),
99 fXsection(0.),
100 fHijing(0),
5bfd0cb7 101 fPtHardMin(2.0),
102 fPtHardMax(-1),
9d89c88d 103 fSpectators(1),
104 fDsigmaDb(0),
105 fDnDb(0),
106 fPtMinJet(-2.5),
107 fEtaMinJet(-20.),
108 fEtaMaxJet(+20.),
109 fPhiMinJet(0.),
110 fPhiMaxJet(2. * TMath::Pi()),
111 fRadiation(3),
112 fSimpleJet(kFALSE),
113 fNoGammas(kFALSE),
114 fProjectileSpecn(0),
115 fProjectileSpecp(0),
116 fTargetSpecn(0),
117 fTargetSpecp(0),
118 fLHC(kFALSE),
119 fRandomPz(kFALSE),
d07f0af2 120 fNoHeavyQuarks(kFALSE),
121 fEventTime(0.)
36b81802 122{
123// Default PbPb collisions at 5. 5 TeV
124//
e7c989e4 125 fEnergyCMS = 5500.;
36b81802 126 fName = "Hijing";
127 fTitle= "Particle Generator using HIJING";
36b81802 128//
36b81802 129//
130// Set random number generator
7cdba479 131 AliHijingRndm::SetHijingRandom(GetRandom());
36b81802 132}
133
36b81802 134AliGenHijing::~AliGenHijing()
135{
136// Destructor
137 if ( fDsigmaDb) delete fDsigmaDb;
138 if ( fDnDb) delete fDnDb;
36b81802 139}
140
141void AliGenHijing::Init()
142{
143// Initialisation
9071ae63 144 fFrame.Resize(8);
145 fTarget.Resize(8);
146 fProjectile.Resize(8);
36b81802 147
148 SetMC(new THijing(fEnergyCMS, fFrame, fProjectile, fTarget,
149 fAProjectile, fZProjectile, fATarget, fZTarget,
150 fMinImpactParam, fMaxImpactParam));
151
b88f5cea 152 fHijing=(THijing*) fMCEvGen;
36b81802 153 fHijing->SetIHPR2(2, fRadiation);
154 fHijing->SetIHPR2(3, fTrigger);
155 fHijing->SetIHPR2(6, fShadowing);
156 fHijing->SetIHPR2(12, fDecaysOff);
157 fHijing->SetIHPR2(21, fKeep);
5bfd0cb7 158 fHijing->SetHIPR1(8, fPtHardMin);
159 fHijing->SetHIPR1(9, fPtHardMax);
36b81802 160 fHijing->SetHIPR1(10, fPtMinJet);
161 fHijing->SetHIPR1(50, fSimpleJet);
162//
163// Quenching
164//
165//
166// fQuench = 0: no quenching
167// fQuench = 1: hijing default
168// fQuench = 2: new LHC parameters for HIPR1(11) and HIPR1(14)
169// fQuench = 3: new RHIC parameters for HIPR1(11) and HIPR1(14)
170// fQuench = 4: new LHC parameters with log(e) dependence
171// fQuench = 5: new RHIC parameters with log(e) dependence
172 fHijing->SetIHPR2(50, 0);
173 if (fQuench > 0)
174 fHijing->SetIHPR2(4, 1);
175 else
176 fHijing->SetIHPR2(4, 0);
177// New LHC parameters from Xin-Nian Wang
178 if (fQuench == 2) {
179 fHijing->SetHIPR1(14, 1.1);
180 fHijing->SetHIPR1(11, 3.7);
181 } else if (fQuench == 3) {
182 fHijing->SetHIPR1(14, 0.20);
183 fHijing->SetHIPR1(11, 2.5);
184 } else if (fQuench == 4) {
185 fHijing->SetIHPR2(50, 1);
186 fHijing->SetHIPR1(14, 4.*0.34);
187 fHijing->SetHIPR1(11, 3.7);
188 } else if (fQuench == 5) {
189 fHijing->SetIHPR2(50, 1);
190 fHijing->SetHIPR1(14, 0.34);
191 fHijing->SetHIPR1(11, 2.5);
192 }
193
f82795ff 194//
195// Heavy quarks
196//
197 if (fNoHeavyQuarks) {
198 fHijing->SetIHPR2(49, 1);
199 } else {
200 fHijing->SetIHPR2(49, 0);
201 }
202
36b81802 203
cc463e4a 204 AliGenMC::Init();
36b81802 205
206//
207// Initialize Hijing
208//
209 fHijing->Initialize();
210//
211 if (fEvaluate) EvaluateCrossSections();
212//
213}
214
215void AliGenHijing::Generate()
216{
217// Generate one event
218
219 Float_t polar[3] = {0,0,0};
220 Float_t origin[3] = {0,0,0};
221 Float_t origin0[3] = {0,0,0};
0c0c6204 222 Float_t p[3];
36b81802 223 Float_t tof;
224
225// converts from mm/c to s
14bca1e5 226 const Float_t kconv = 0.001/2.99792458e8;
36b81802 227//
228 Int_t nt = 0;
229 Int_t jev = 0;
2d677e30 230 Int_t j, kf, ks, ksp, imo;
36b81802 231 kf = 0;
232
233
234
235 fTrials = 0;
e60d2969 236
36b81802 237 for (j = 0;j < 3; j++) origin0[j] = fOrigin[j];
16a37f16 238
36b81802 239 if(fVertexSmear == kPerEvent) {
0c0c6204 240 Vertex();
241 for (j=0; j < 3; j++) origin0[j] = fVertex[j];
242 }
243
b25b821e 244
245 Float_t sign = (fRandomPz && (Rndm() < 0.5))? -1. : 1.;
16a37f16 246
36b81802 247 while(1)
248 {
249// Generate one event
250// --------------------------------------------------------------------------
f0c86dd6 251 fProjectileSpecn = 0;
252 fProjectileSpecp = 0;
b25b821e 253 fTargetSpecn = 0;
254 fTargetSpecp = 0;
36b81802 255// --------------------------------------------------------------------------
256 fHijing->GenerateEvent();
257 fTrials++;
e60d2969 258 fNprimaries = 0;
8507138f 259 fHijing->ImportParticles(&fParticles,"All");
36b81802 260 if (fTrigger != kNoTrigger) {
261 if (!CheckTrigger()) continue;
262 }
71ea527c 263 if (fLHC) Boost();
36b81802 264
265
8507138f 266 Int_t np = fParticles.GetEntriesFast();
36b81802 267 Int_t nc = 0;
268 if (np == 0 ) continue;
269 Int_t i;
270 Int_t* newPos = new Int_t[np];
271 Int_t* pSelected = new Int_t[np];
272
273 for (i = 0; i < np; i++) {
274 newPos[i] = i;
275 pSelected[i] = 0;
276 }
277
278// Get event vertex
279//
8507138f 280 TParticle * iparticle = (TParticle *) fParticles.At(0);
0c0c6204 281 fVertex[0] = origin0[0];
282 fVertex[1] = origin0[1];
283 fVertex[2] = origin0[2];
36b81802 284
285//
286// First select parent particles
287//
288
289 for (i = 0; i < np; i++) {
8507138f 290 iparticle = (TParticle *) fParticles.At(i);
36b81802 291
292// Is this a parent particle ?
293 if (Stable(iparticle)) continue;
294//
295 Bool_t selected = kTRUE;
296 Bool_t hasSelectedDaughters = kFALSE;
297
298
299 kf = iparticle->GetPdgCode();
300 ks = iparticle->GetStatusCode();
301 if (kf == 92) continue;
302
303 if (!fSelectAll) selected = KinematicSelection(iparticle, 0) &&
304 SelectFlavor(kf);
305 hasSelectedDaughters = DaughtersSelection(iparticle);
306//
307// Put particle on the stack if it is either selected or
308// it is the mother of at least one seleted particle
309//
310 if (selected || hasSelectedDaughters) {
311 nc++;
312 pSelected[i] = 1;
313 } // selected
314 } // particle loop parents
315//
316// Now select the final state particles
317//
318
319 for (i = 0; i<np; i++) {
c4998efa 320 iparticle = (TParticle *) fParticles.At(i);
36b81802 321// Is this a final state particle ?
322 if (!Stable(iparticle)) continue;
323
324 Bool_t selected = kTRUE;
325 kf = iparticle->GetPdgCode();
326 ks = iparticle->GetStatusCode();
2d677e30 327 ksp = iparticle->GetUniqueID();
36b81802 328
329// --------------------------------------------------------------------------
330// Count spectator neutrons and protons
2d677e30 331 if(ksp == 0 || ksp == 1){
f0c86dd6 332 if(kf == kNeutron) fProjectileSpecn += 1;
333 if(kf == kProton) fProjectileSpecp += 1;
334 }
2d677e30 335 else if(ksp == 10 || ksp == 11){
f0c86dd6 336 if(kf == kNeutron) fTargetSpecn += 1;
337 if(kf == kProton) fTargetSpecp += 1;
36b81802 338 }
339// --------------------------------------------------------------------------
340//
341 if (!fSelectAll) {
342 selected = KinematicSelection(iparticle,0)&&SelectFlavor(kf);
2d677e30 343 if (!fSpectators && selected) selected = (ksp != 0 && ksp != 1 && ksp != 10
344 && ksp != 11);
36b81802 345 }
346//
347// Put particle on the stack if selected
348//
349 if (selected) {
350 nc++;
351 pSelected[i] = 1;
352 } // selected
353 } // particle loop final state
3439da17 354
36b81802 355//
3439da17 356// Time of the interactions
357 Float_t tInt = 0.;
358 if (fPileUpTimeWindow > 0.) tInt = fPileUpTimeWindow * (2. * gRandom->Rndm() - 1.);
359
36b81802 360//
3439da17 361// Write particles to stack
362
36b81802 363 for (i = 0; i<np; i++) {
c4998efa 364 iparticle = (TParticle *) fParticles.At(i);
36b81802 365 Bool_t hasMother = (iparticle->GetFirstMother() >=0);
366 Bool_t hasDaughter = (iparticle->GetFirstDaughter() >=0);
36b81802 367 if (pSelected[i]) {
368 kf = iparticle->GetPdgCode();
369 ks = iparticle->GetStatusCode();
370 p[0] = iparticle->Px();
371 p[1] = iparticle->Py();
b25b821e 372 p[2] = iparticle->Pz() * sign;
36b81802 373 origin[0] = origin0[0]+iparticle->Vx()/10;
374 origin[1] = origin0[1]+iparticle->Vy()/10;
375 origin[2] = origin0[2]+iparticle->Vz()/10;
d07f0af2 376 fEventTime = 0.;
377
16a37f16 378 if (TestBit(kVertexRange)) {
d07f0af2 379 fEventTime = sign * origin0[2] / 2.99792458e10;
380 tof = kconv * iparticle->T() + fEventTime;
16a37f16 381 } else {
382 tof = kconv * iparticle->T();
d07f0af2 383 fEventTime = tInt;
16a37f16 384 if (fPileUpTimeWindow > 0.) tof += tInt;
385 }
36b81802 386 imo = -1;
387 TParticle* mother = 0;
388 if (hasMother) {
389 imo = iparticle->GetFirstMother();
8507138f 390 mother = (TParticle *) fParticles.At(imo);
e57522c0 391 imo = (mother->GetPdgCode() != 92) ? newPos[imo] : -1;
36b81802 392 } // if has mother
393 Bool_t tFlag = (fTrackIt && !hasDaughter);
3439da17 394 PushTrack(tFlag,imo,kf,p,origin,polar,tof,kPNoProcess,nt, 1., ks);
e60d2969 395 fNprimaries++;
36b81802 396 KeepTrack(nt);
397 newPos[i] = nt;
398 } // if selected
399 } // particle loop
400 delete[] newPos;
401 delete[] pSelected;
402
3f4e7ad8 403 AliInfo(Form("\n I've put %i particles on the stack \n",nc));
36b81802 404 if (nc > 0) {
405 jev += nc;
406 if (jev >= fNpart || fNpart == -1) {
407 fKineBias = Float_t(fNpart)/Float_t(fTrials);
3f4e7ad8 408 AliInfo(Form("\n Trials: %i %i %i\n",fTrials, fNpart, jev));
36b81802 409 break;
410 }
411 }
412 } // event loop
413 MakeHeader();
414 SetHighWaterMark(nt);
415}
416
417void AliGenHijing::KeepFullEvent()
418{
419 fKeep=1;
420}
421
422void AliGenHijing::EvaluateCrossSections()
423{
424// Glauber Calculation of geometrical x-section
425//
426 Float_t xTot = 0.; // barn
427 Float_t xTotHard = 0.; // barn
428 Float_t xPart = 0.; // barn
429 Float_t xPartHard = 0.; // barn
430 Float_t sigmaHard = 0.1; // mbarn
431 Float_t bMin = 0.;
432 Float_t bMax = fHijing->GetHIPR1(34)+fHijing->GetHIPR1(35);
433 const Float_t kdib = 0.2;
434 Int_t kMax = Int_t((bMax-bMin)/kdib)+1;
435
436
437 printf("\n Projectile Radius (fm): %f \n",fHijing->GetHIPR1(34));
438 printf("\n Target Radius (fm): %f \n",fHijing->GetHIPR1(35));
439 Int_t i;
440 Float_t oldvalue= 0.;
441
442 Float_t* b = new Float_t[kMax];
443 Float_t* si1 = new Float_t[kMax];
444 Float_t* si2 = new Float_t[kMax];
445
446 for (i = 0; i < kMax; i++)
447 {
448 Float_t xb = bMin+i*kdib;
449 Float_t ov;
450 ov=fHijing->Profile(xb);
451 Float_t gb = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*(1.-TMath::Exp(-fHijing->GetHINT1(12)*ov));
452 Float_t gbh = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*sigmaHard*ov;
453 xTot+=gb;
454 xTotHard += gbh;
455 printf("profile %f %f %f\n", xb, ov, fHijing->GetHINT1(12));
456
457 if (xb > fMinImpactParam && xb < fMaxImpactParam)
458 {
459 xPart += gb;
460 xPartHard += gbh;
461 }
462
463 if(oldvalue) if ((xTot-oldvalue)/oldvalue<0.0001) break;
464 oldvalue = xTot;
465 printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot);
466 printf("\n Hard cross section (barn): %d %f %f \n\n",i, xb, xTotHard);
467 if (i>0) {
468 si1[i] = gb/kdib;
469 si2[i] = gbh/gb;
470 b[i] = xb;
471 }
472 }
473
474 printf("\n Total cross section (barn): %f \n",xTot);
475 printf("\n Hard cross section (barn): %f \n \n",xTotHard);
476 printf("\n Partial cross section (barn): %f %f \n",xPart, xPart/xTot*100.);
477 printf("\n Partial hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.);
478
479// Store result as a graph
480 b[0] = 0;
481 si1[0] = 0;
482 si2[0]=si2[1];
483
484 fDsigmaDb = new TGraph(i, b, si1);
485 fDnDb = new TGraph(i, b, si2);
486}
487
488Bool_t AliGenHijing::DaughtersSelection(TParticle* iparticle)
489{
490//
491// Looks recursively if one of the daughters has been selected
492//
493// printf("\n Consider daughters %d:",iparticle->GetPdgCode());
494 Int_t imin = -1;
495 Int_t imax = -1;
496 Int_t i;
497 Bool_t hasDaughters = (iparticle->GetFirstDaughter() >=0);
498 Bool_t selected = kFALSE;
499 if (hasDaughters) {
500 imin = iparticle->GetFirstDaughter();
501 imax = iparticle->GetLastDaughter();
502 for (i = imin; i <= imax; i++){
8507138f 503 TParticle * jparticle = (TParticle *) fParticles.At(i);
36b81802 504 Int_t ip = jparticle->GetPdgCode();
505 if (KinematicSelection(jparticle,0)&&SelectFlavor(ip)) {
506 selected=kTRUE; break;
507 }
508 if (DaughtersSelection(jparticle)) {selected=kTRUE; break; }
509 }
510 } else {
511 return kFALSE;
512 }
513 return selected;
514}
515
516
517Bool_t AliGenHijing::SelectFlavor(Int_t pid)
518{
519// Select flavor of particle
520// 0: all
521// 4: charm and beauty
522// 5: beauty
523 Bool_t res = 0;
524
525 if (fFlavor == 0) {
526 res = kTRUE;
527 } else {
528 Int_t ifl = TMath::Abs(pid/100);
529 if (ifl > 10) ifl/=10;
530 res = (fFlavor == ifl);
531 }
532//
533// This part if gamma writing is inhibited
534 if (fNoGammas)
535 res = res && (pid != kGamma && pid != kPi0);
536//
537 return res;
538}
539
14cae7e9 540Bool_t AliGenHijing::Stable(TParticle* particle) const
36b81802 541{
542// Return true for a stable particle
543//
544
545 if (particle->GetFirstDaughter() < 0 )
546 {
547 return kTRUE;
548 } else {
549 return kFALSE;
550 }
551}
552
553
36b81802 554
555void AliGenHijing::MakeHeader()
556{
557// Builds the event header, to be called after each event
558 AliGenEventHeader* header = new AliGenHijingEventHeader("Hijing");
e60d2969 559 ((AliGenHijingEventHeader*) header)->SetNProduced(fNprimaries);
36b81802 560 ((AliGenHijingEventHeader*) header)->SetImpactParameter(fHijing->GetHINT1(19));
561 ((AliGenHijingEventHeader*) header)->SetTotalEnergy(fHijing->GetEATT());
562 ((AliGenHijingEventHeader*) header)->SetHardScatters(fHijing->GetJATT());
563 ((AliGenHijingEventHeader*) header)->SetParticipants(fHijing->GetNP(), fHijing->GetNT());
564 ((AliGenHijingEventHeader*) header)->SetCollisions(fHijing->GetN0(),
565 fHijing->GetN01(),
566 fHijing->GetN10(),
567 fHijing->GetN11());
f0c86dd6 568 ((AliGenHijingEventHeader*) header)->SetSpectators(fProjectileSpecn, fProjectileSpecp,
569 fTargetSpecn,fTargetSpecp);
3c0c211c 570 ((AliGenHijingEventHeader*) header)->SetReactionPlaneAngle(fHijing->GetHINT1(20));
16a37f16 571// printf("Impact Parameter %13.3f \n", fHijing->GetHINT1(19));
3c0c211c 572
573
36b81802 574
575// 4-momentum vectors of the triggered jets.
576//
577// Before final state gluon radiation.
578 TLorentzVector* jet1 = new TLorentzVector(fHijing->GetHINT1(21),
579 fHijing->GetHINT1(22),
580 fHijing->GetHINT1(23),
581 fHijing->GetHINT1(24));
582
583 TLorentzVector* jet2 = new TLorentzVector(fHijing->GetHINT1(31),
584 fHijing->GetHINT1(32),
585 fHijing->GetHINT1(33),
586 fHijing->GetHINT1(34));
587// After final state gluon radiation.
588 TLorentzVector* jet3 = new TLorentzVector(fHijing->GetHINT1(26),
589 fHijing->GetHINT1(27),
590 fHijing->GetHINT1(28),
591 fHijing->GetHINT1(29));
592
593 TLorentzVector* jet4 = new TLorentzVector(fHijing->GetHINT1(36),
594 fHijing->GetHINT1(37),
595 fHijing->GetHINT1(38),
596 fHijing->GetHINT1(39));
597 ((AliGenHijingEventHeader*) header)->SetJets(jet1, jet2, jet3, jet4);
598// Bookkeeping for kinematic bias
599 ((AliGenHijingEventHeader*) header)->SetTrials(fTrials);
600// Event Vertex
0c0c6204 601 header->SetPrimaryVertex(fVertex);
d07f0af2 602 header->SetInteractionTime(fEventTime);
cf57b268 603 AddHeader(header);
36b81802 604 fCollisionGeometry = (AliGenHijingEventHeader*) header;
605}
606
cf57b268 607
36b81802 608Bool_t AliGenHijing::CheckTrigger()
609{
610// Check the kinematic trigger condition
611//
612 Bool_t triggered = kFALSE;
613
614 if (fTrigger == 1) {
615//
616// jet-jet Trigger
617
618 TLorentzVector* jet1 = new TLorentzVector(fHijing->GetHINT1(26),
619 fHijing->GetHINT1(27),
620 fHijing->GetHINT1(28),
621 fHijing->GetHINT1(29));
622
623 TLorentzVector* jet2 = new TLorentzVector(fHijing->GetHINT1(36),
624 fHijing->GetHINT1(37),
625 fHijing->GetHINT1(38),
626 fHijing->GetHINT1(39));
627 Double_t eta1 = jet1->Eta();
628 Double_t eta2 = jet2->Eta();
629 Double_t phi1 = jet1->Phi();
630 Double_t phi2 = jet2->Phi();
631// printf("\n Trigger: %f %f %f %f",
632// fEtaMinJet, fEtaMaxJet, fPhiMinJet, fPhiMaxJet);
633 if (
634 (eta1 < fEtaMaxJet && eta1 > fEtaMinJet &&
635 phi1 < fPhiMaxJet && phi1 > fPhiMinJet)
636 ||
637 (eta2 < fEtaMaxJet && eta2 > fEtaMinJet &&
638 phi2 < fPhiMaxJet && phi2 > fPhiMinJet)
639 )
640 triggered = kTRUE;
641 } else if (fTrigger == 2) {
642// Gamma Jet
643//
8507138f 644 Int_t np = fParticles.GetEntriesFast();
36b81802 645 for (Int_t i = 0; i < np; i++) {
8507138f 646 TParticle* part = (TParticle*) fParticles.At(i);
36b81802 647 Int_t kf = part->GetPdgCode();
2d677e30 648 Int_t ksp = part->GetUniqueID();
649 if (kf == 22 && ksp == 40) {
36b81802 650 Float_t phi = part->Phi();
651 Float_t eta = part->Eta();
652 if (eta < fEtaMaxJet &&
653 eta > fEtaMinJet &&
654 phi < fPhiMaxJet &&
655 phi > fPhiMinJet) {
656 triggered = 1;
657 break;
658 } // check phi,eta within limits
659 } // direct gamma ?
660 } // particle loop
661 } // fTrigger == 2
662 return triggered;
663}