In AliStack: TClonesArray* fParticles replaced by TClonesArray
[u/mrichter/AliRoot.git] / THijing / AliGenHijing.cxx
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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"
34#include "AliRun.h"
7cdba479 35#include "AliHijingRndm.h"
36b81802 36
7cdba479 37ClassImp(AliGenHijing)
36b81802 38
39AliGenHijing::AliGenHijing()
9d89c88d 40 :AliGenMC(),
41 fFrame("CMS"),
42 fMinImpactParam(0.),
43 fMaxImpactParam(5.),
44 fKeep(0),
45 fQuench(1),
46 fShadowing(1),
47 fDecaysOff(1),
48 fTrigger(0),
49 fEvaluate(0),
50 fSelectAll(0),
51 fFlavor(0),
52 fEnergyCMS(5500.),
53 fKineBias(0.),
54 fTrials(0),
55 fXsection(0.),
56 fHijing(0),
57 fPtHardMin(0.),
58 fPtHardMax(1.e4),
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),
76 fNoHeavyQuarks(kFALSE)
36b81802 77{
78// Constructor
7cdba479 79 AliHijingRndm::SetHijingRandom(GetRandom());
36b81802 80}
81
82AliGenHijing::AliGenHijing(Int_t npart)
9d89c88d 83 :AliGenMC(npart),
84 fFrame("CMS"),
85 fMinImpactParam(0.),
86 fMaxImpactParam(5.),
87 fKeep(0),
88 fQuench(1),
89 fShadowing(1),
90 fDecaysOff(1),
91 fTrigger(0),
92 fEvaluate(0),
93 fSelectAll(0),
94 fFlavor(0),
95 fEnergyCMS(5500.),
96 fKineBias(0.),
97 fTrials(0),
98 fXsection(0.),
99 fHijing(0),
100 fPtHardMin(0.),
101 fPtHardMax(1.e4),
102 fSpectators(1),
103 fDsigmaDb(0),
104 fDnDb(0),
105 fPtMinJet(-2.5),
106 fEtaMinJet(-20.),
107 fEtaMaxJet(+20.),
108 fPhiMinJet(0.),
109 fPhiMaxJet(2. * TMath::Pi()),
110 fRadiation(3),
111 fSimpleJet(kFALSE),
112 fNoGammas(kFALSE),
113 fProjectileSpecn(0),
114 fProjectileSpecp(0),
115 fTargetSpecn(0),
116 fTargetSpecp(0),
117 fLHC(kFALSE),
118 fRandomPz(kFALSE),
119 fNoHeavyQuarks(kFALSE)
36b81802 120{
121// Default PbPb collisions at 5. 5 TeV
122//
123 fName = "Hijing";
124 fTitle= "Particle Generator using HIJING";
36b81802 125//
36b81802 126//
127// Set random number generator
7cdba479 128 AliHijingRndm::SetHijingRandom(GetRandom());
36b81802 129}
130
36b81802 131AliGenHijing::~AliGenHijing()
132{
133// Destructor
134 if ( fDsigmaDb) delete fDsigmaDb;
135 if ( fDnDb) delete fDnDb;
36b81802 136}
137
138void AliGenHijing::Init()
139{
140// Initialisation
141 fFrame.Resize(8);
142 fTarget.Resize(8);
143 fProjectile.Resize(8);
144
145 SetMC(new THijing(fEnergyCMS, fFrame, fProjectile, fTarget,
146 fAProjectile, fZProjectile, fATarget, fZTarget,
147 fMinImpactParam, fMaxImpactParam));
148
b88f5cea 149 fHijing=(THijing*) fMCEvGen;
36b81802 150 fHijing->SetIHPR2(2, fRadiation);
151 fHijing->SetIHPR2(3, fTrigger);
152 fHijing->SetIHPR2(6, fShadowing);
153 fHijing->SetIHPR2(12, fDecaysOff);
154 fHijing->SetIHPR2(21, fKeep);
155 fHijing->SetHIPR1(10, fPtMinJet);
156 fHijing->SetHIPR1(50, fSimpleJet);
157//
158// Quenching
159//
160//
161// fQuench = 0: no quenching
162// fQuench = 1: hijing default
163// fQuench = 2: new LHC parameters for HIPR1(11) and HIPR1(14)
164// fQuench = 3: new RHIC parameters for HIPR1(11) and HIPR1(14)
165// fQuench = 4: new LHC parameters with log(e) dependence
166// fQuench = 5: new RHIC parameters with log(e) dependence
167 fHijing->SetIHPR2(50, 0);
168 if (fQuench > 0)
169 fHijing->SetIHPR2(4, 1);
170 else
171 fHijing->SetIHPR2(4, 0);
172// New LHC parameters from Xin-Nian Wang
173 if (fQuench == 2) {
174 fHijing->SetHIPR1(14, 1.1);
175 fHijing->SetHIPR1(11, 3.7);
176 } else if (fQuench == 3) {
177 fHijing->SetHIPR1(14, 0.20);
178 fHijing->SetHIPR1(11, 2.5);
179 } else if (fQuench == 4) {
180 fHijing->SetIHPR2(50, 1);
181 fHijing->SetHIPR1(14, 4.*0.34);
182 fHijing->SetHIPR1(11, 3.7);
183 } else if (fQuench == 5) {
184 fHijing->SetIHPR2(50, 1);
185 fHijing->SetHIPR1(14, 0.34);
186 fHijing->SetHIPR1(11, 2.5);
187 }
188
f82795ff 189//
190// Heavy quarks
191//
192 if (fNoHeavyQuarks) {
193 fHijing->SetIHPR2(49, 1);
194 } else {
195 fHijing->SetIHPR2(49, 0);
196 }
197
36b81802 198
cc463e4a 199 AliGenMC::Init();
36b81802 200
201//
202// Initialize Hijing
203//
204 fHijing->Initialize();
205//
206 if (fEvaluate) EvaluateCrossSections();
207//
208}
209
210void AliGenHijing::Generate()
211{
212// Generate one event
213
214 Float_t polar[3] = {0,0,0};
215 Float_t origin[3] = {0,0,0};
216 Float_t origin0[3] = {0,0,0};
0c0c6204 217 Float_t p[3];
36b81802 218 Float_t tof;
219
220// converts from mm/c to s
14bca1e5 221 const Float_t kconv = 0.001/2.99792458e8;
36b81802 222//
223 Int_t nt = 0;
224 Int_t jev = 0;
2d677e30 225 Int_t j, kf, ks, ksp, imo;
36b81802 226 kf = 0;
227
228
229
230 fTrials = 0;
e60d2969 231
36b81802 232 for (j = 0;j < 3; j++) origin0[j] = fOrigin[j];
233 if(fVertexSmear == kPerEvent) {
0c0c6204 234 Vertex();
235 for (j=0; j < 3; j++) origin0[j] = fVertex[j];
236 }
237
b25b821e 238
239 Float_t sign = (fRandomPz && (Rndm() < 0.5))? -1. : 1.;
36b81802 240 while(1)
241 {
242// Generate one event
243// --------------------------------------------------------------------------
f0c86dd6 244 fProjectileSpecn = 0;
245 fProjectileSpecp = 0;
b25b821e 246 fTargetSpecn = 0;
247 fTargetSpecp = 0;
36b81802 248// --------------------------------------------------------------------------
249 fHijing->GenerateEvent();
250 fTrials++;
e60d2969 251 fNprimaries = 0;
8507138f 252 fHijing->ImportParticles(&fParticles,"All");
36b81802 253 if (fTrigger != kNoTrigger) {
254 if (!CheckTrigger()) continue;
255 }
71ea527c 256 if (fLHC) Boost();
36b81802 257
258
8507138f 259 Int_t np = fParticles.GetEntriesFast();
36b81802 260 printf("\n **************************************************%d\n",np);
261 Int_t nc = 0;
262 if (np == 0 ) continue;
263 Int_t i;
264 Int_t* newPos = new Int_t[np];
265 Int_t* pSelected = new Int_t[np];
266
267 for (i = 0; i < np; i++) {
268 newPos[i] = i;
269 pSelected[i] = 0;
270 }
271
272// Get event vertex
273//
8507138f 274 TParticle * iparticle = (TParticle *) fParticles.At(0);
0c0c6204 275 fVertex[0] = origin0[0];
276 fVertex[1] = origin0[1];
277 fVertex[2] = origin0[2];
36b81802 278
279//
280// First select parent particles
281//
282
283 for (i = 0; i < np; i++) {
8507138f 284 iparticle = (TParticle *) fParticles.At(i);
36b81802 285
286// Is this a parent particle ?
287 if (Stable(iparticle)) continue;
288//
289 Bool_t selected = kTRUE;
290 Bool_t hasSelectedDaughters = kFALSE;
291
292
293 kf = iparticle->GetPdgCode();
294 ks = iparticle->GetStatusCode();
295 if (kf == 92) continue;
296
297 if (!fSelectAll) selected = KinematicSelection(iparticle, 0) &&
298 SelectFlavor(kf);
299 hasSelectedDaughters = DaughtersSelection(iparticle);
300//
301// Put particle on the stack if it is either selected or
302// it is the mother of at least one seleted particle
303//
304 if (selected || hasSelectedDaughters) {
305 nc++;
306 pSelected[i] = 1;
307 } // selected
308 } // particle loop parents
309//
310// Now select the final state particles
311//
312
313 for (i = 0; i<np; i++) {
8507138f 314 TParticle * iparticle = (TParticle *) fParticles.At(i);
36b81802 315// Is this a final state particle ?
316 if (!Stable(iparticle)) continue;
317
318 Bool_t selected = kTRUE;
319 kf = iparticle->GetPdgCode();
320 ks = iparticle->GetStatusCode();
2d677e30 321 ksp = iparticle->GetUniqueID();
36b81802 322
323// --------------------------------------------------------------------------
324// Count spectator neutrons and protons
2d677e30 325 if(ksp == 0 || ksp == 1){
f0c86dd6 326 if(kf == kNeutron) fProjectileSpecn += 1;
327 if(kf == kProton) fProjectileSpecp += 1;
328 }
2d677e30 329 else if(ksp == 10 || ksp == 11){
f0c86dd6 330 if(kf == kNeutron) fTargetSpecn += 1;
331 if(kf == kProton) fTargetSpecp += 1;
36b81802 332 }
333// --------------------------------------------------------------------------
334//
335 if (!fSelectAll) {
336 selected = KinematicSelection(iparticle,0)&&SelectFlavor(kf);
2d677e30 337 if (!fSpectators && selected) selected = (ksp != 0 && ksp != 1 && ksp != 10
338 && ksp != 11);
36b81802 339 }
340//
341// Put particle on the stack if selected
342//
343 if (selected) {
344 nc++;
345 pSelected[i] = 1;
346 } // selected
347 } // particle loop final state
3439da17 348
36b81802 349//
3439da17 350// Time of the interactions
351 Float_t tInt = 0.;
352 if (fPileUpTimeWindow > 0.) tInt = fPileUpTimeWindow * (2. * gRandom->Rndm() - 1.);
353
36b81802 354//
3439da17 355// Write particles to stack
356
36b81802 357 for (i = 0; i<np; i++) {
8507138f 358 TParticle * iparticle = (TParticle *) fParticles.At(i);
36b81802 359 Bool_t hasMother = (iparticle->GetFirstMother() >=0);
360 Bool_t hasDaughter = (iparticle->GetFirstDaughter() >=0);
36b81802 361 if (pSelected[i]) {
362 kf = iparticle->GetPdgCode();
363 ks = iparticle->GetStatusCode();
364 p[0] = iparticle->Px();
365 p[1] = iparticle->Py();
b25b821e 366 p[2] = iparticle->Pz() * sign;
36b81802 367 origin[0] = origin0[0]+iparticle->Vx()/10;
368 origin[1] = origin0[1]+iparticle->Vy()/10;
369 origin[2] = origin0[2]+iparticle->Vz()/10;
3439da17 370 tof = kconv * iparticle->T() + sign * origin0[2] / 3.e10;
371 if (fPileUpTimeWindow > 0.) tof += tInt;
372
36b81802 373 imo = -1;
374 TParticle* mother = 0;
375 if (hasMother) {
376 imo = iparticle->GetFirstMother();
8507138f 377 mother = (TParticle *) fParticles.At(imo);
e57522c0 378 imo = (mother->GetPdgCode() != 92) ? newPos[imo] : -1;
36b81802 379 } // if has mother
380 Bool_t tFlag = (fTrackIt && !hasDaughter);
3439da17 381 PushTrack(tFlag,imo,kf,p,origin,polar,tof,kPNoProcess,nt, 1., ks);
e60d2969 382 fNprimaries++;
36b81802 383 KeepTrack(nt);
384 newPos[i] = nt;
385 } // if selected
386 } // particle loop
387 delete[] newPos;
388 delete[] pSelected;
389
390 printf("\n I've put %i particles on the stack \n",nc);
391 if (nc > 0) {
392 jev += nc;
393 if (jev >= fNpart || fNpart == -1) {
394 fKineBias = Float_t(fNpart)/Float_t(fTrials);
395 printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev);
396 break;
397 }
398 }
399 } // event loop
400 MakeHeader();
401 SetHighWaterMark(nt);
402}
403
404void AliGenHijing::KeepFullEvent()
405{
406 fKeep=1;
407}
408
409void AliGenHijing::EvaluateCrossSections()
410{
411// Glauber Calculation of geometrical x-section
412//
413 Float_t xTot = 0.; // barn
414 Float_t xTotHard = 0.; // barn
415 Float_t xPart = 0.; // barn
416 Float_t xPartHard = 0.; // barn
417 Float_t sigmaHard = 0.1; // mbarn
418 Float_t bMin = 0.;
419 Float_t bMax = fHijing->GetHIPR1(34)+fHijing->GetHIPR1(35);
420 const Float_t kdib = 0.2;
421 Int_t kMax = Int_t((bMax-bMin)/kdib)+1;
422
423
424 printf("\n Projectile Radius (fm): %f \n",fHijing->GetHIPR1(34));
425 printf("\n Target Radius (fm): %f \n",fHijing->GetHIPR1(35));
426 Int_t i;
427 Float_t oldvalue= 0.;
428
429 Float_t* b = new Float_t[kMax];
430 Float_t* si1 = new Float_t[kMax];
431 Float_t* si2 = new Float_t[kMax];
432
433 for (i = 0; i < kMax; i++)
434 {
435 Float_t xb = bMin+i*kdib;
436 Float_t ov;
437 ov=fHijing->Profile(xb);
438 Float_t gb = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*(1.-TMath::Exp(-fHijing->GetHINT1(12)*ov));
439 Float_t gbh = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*sigmaHard*ov;
440 xTot+=gb;
441 xTotHard += gbh;
442 printf("profile %f %f %f\n", xb, ov, fHijing->GetHINT1(12));
443
444 if (xb > fMinImpactParam && xb < fMaxImpactParam)
445 {
446 xPart += gb;
447 xPartHard += gbh;
448 }
449
450 if(oldvalue) if ((xTot-oldvalue)/oldvalue<0.0001) break;
451 oldvalue = xTot;
452 printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot);
453 printf("\n Hard cross section (barn): %d %f %f \n\n",i, xb, xTotHard);
454 if (i>0) {
455 si1[i] = gb/kdib;
456 si2[i] = gbh/gb;
457 b[i] = xb;
458 }
459 }
460
461 printf("\n Total cross section (barn): %f \n",xTot);
462 printf("\n Hard cross section (barn): %f \n \n",xTotHard);
463 printf("\n Partial cross section (barn): %f %f \n",xPart, xPart/xTot*100.);
464 printf("\n Partial hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.);
465
466// Store result as a graph
467 b[0] = 0;
468 si1[0] = 0;
469 si2[0]=si2[1];
470
471 fDsigmaDb = new TGraph(i, b, si1);
472 fDnDb = new TGraph(i, b, si2);
473}
474
475Bool_t AliGenHijing::DaughtersSelection(TParticle* iparticle)
476{
477//
478// Looks recursively if one of the daughters has been selected
479//
480// printf("\n Consider daughters %d:",iparticle->GetPdgCode());
481 Int_t imin = -1;
482 Int_t imax = -1;
483 Int_t i;
484 Bool_t hasDaughters = (iparticle->GetFirstDaughter() >=0);
485 Bool_t selected = kFALSE;
486 if (hasDaughters) {
487 imin = iparticle->GetFirstDaughter();
488 imax = iparticle->GetLastDaughter();
489 for (i = imin; i <= imax; i++){
8507138f 490 TParticle * jparticle = (TParticle *) fParticles.At(i);
36b81802 491 Int_t ip = jparticle->GetPdgCode();
492 if (KinematicSelection(jparticle,0)&&SelectFlavor(ip)) {
493 selected=kTRUE; break;
494 }
495 if (DaughtersSelection(jparticle)) {selected=kTRUE; break; }
496 }
497 } else {
498 return kFALSE;
499 }
500 return selected;
501}
502
503
504Bool_t AliGenHijing::SelectFlavor(Int_t pid)
505{
506// Select flavor of particle
507// 0: all
508// 4: charm and beauty
509// 5: beauty
510 Bool_t res = 0;
511
512 if (fFlavor == 0) {
513 res = kTRUE;
514 } else {
515 Int_t ifl = TMath::Abs(pid/100);
516 if (ifl > 10) ifl/=10;
517 res = (fFlavor == ifl);
518 }
519//
520// This part if gamma writing is inhibited
521 if (fNoGammas)
522 res = res && (pid != kGamma && pid != kPi0);
523//
524 return res;
525}
526
14cae7e9 527Bool_t AliGenHijing::Stable(TParticle* particle) const
36b81802 528{
529// Return true for a stable particle
530//
531
532 if (particle->GetFirstDaughter() < 0 )
533 {
534 return kTRUE;
535 } else {
536 return kFALSE;
537 }
538}
539
540
36b81802 541
542void AliGenHijing::MakeHeader()
543{
544// Builds the event header, to be called after each event
545 AliGenEventHeader* header = new AliGenHijingEventHeader("Hijing");
e60d2969 546 ((AliGenHijingEventHeader*) header)->SetNProduced(fNprimaries);
36b81802 547 ((AliGenHijingEventHeader*) header)->SetImpactParameter(fHijing->GetHINT1(19));
548 ((AliGenHijingEventHeader*) header)->SetTotalEnergy(fHijing->GetEATT());
549 ((AliGenHijingEventHeader*) header)->SetHardScatters(fHijing->GetJATT());
550 ((AliGenHijingEventHeader*) header)->SetParticipants(fHijing->GetNP(), fHijing->GetNT());
551 ((AliGenHijingEventHeader*) header)->SetCollisions(fHijing->GetN0(),
552 fHijing->GetN01(),
553 fHijing->GetN10(),
554 fHijing->GetN11());
f0c86dd6 555 ((AliGenHijingEventHeader*) header)->SetSpectators(fProjectileSpecn, fProjectileSpecp,
556 fTargetSpecn,fTargetSpecp);
3c0c211c 557 ((AliGenHijingEventHeader*) header)->SetReactionPlaneAngle(fHijing->GetHINT1(20));
558
559
36b81802 560
561// 4-momentum vectors of the triggered jets.
562//
563// Before final state gluon radiation.
564 TLorentzVector* jet1 = new TLorentzVector(fHijing->GetHINT1(21),
565 fHijing->GetHINT1(22),
566 fHijing->GetHINT1(23),
567 fHijing->GetHINT1(24));
568
569 TLorentzVector* jet2 = new TLorentzVector(fHijing->GetHINT1(31),
570 fHijing->GetHINT1(32),
571 fHijing->GetHINT1(33),
572 fHijing->GetHINT1(34));
573// After final state gluon radiation.
574 TLorentzVector* jet3 = new TLorentzVector(fHijing->GetHINT1(26),
575 fHijing->GetHINT1(27),
576 fHijing->GetHINT1(28),
577 fHijing->GetHINT1(29));
578
579 TLorentzVector* jet4 = new TLorentzVector(fHijing->GetHINT1(36),
580 fHijing->GetHINT1(37),
581 fHijing->GetHINT1(38),
582 fHijing->GetHINT1(39));
583 ((AliGenHijingEventHeader*) header)->SetJets(jet1, jet2, jet3, jet4);
584// Bookkeeping for kinematic bias
585 ((AliGenHijingEventHeader*) header)->SetTrials(fTrials);
586// Event Vertex
0c0c6204 587 header->SetPrimaryVertex(fVertex);
cf57b268 588 AddHeader(header);
36b81802 589 fCollisionGeometry = (AliGenHijingEventHeader*) header;
590}
591
cf57b268 592
36b81802 593Bool_t AliGenHijing::CheckTrigger()
594{
595// Check the kinematic trigger condition
596//
597 Bool_t triggered = kFALSE;
598
599 if (fTrigger == 1) {
600//
601// jet-jet Trigger
602
603 TLorentzVector* jet1 = new TLorentzVector(fHijing->GetHINT1(26),
604 fHijing->GetHINT1(27),
605 fHijing->GetHINT1(28),
606 fHijing->GetHINT1(29));
607
608 TLorentzVector* jet2 = new TLorentzVector(fHijing->GetHINT1(36),
609 fHijing->GetHINT1(37),
610 fHijing->GetHINT1(38),
611 fHijing->GetHINT1(39));
612 Double_t eta1 = jet1->Eta();
613 Double_t eta2 = jet2->Eta();
614 Double_t phi1 = jet1->Phi();
615 Double_t phi2 = jet2->Phi();
616// printf("\n Trigger: %f %f %f %f",
617// fEtaMinJet, fEtaMaxJet, fPhiMinJet, fPhiMaxJet);
618 if (
619 (eta1 < fEtaMaxJet && eta1 > fEtaMinJet &&
620 phi1 < fPhiMaxJet && phi1 > fPhiMinJet)
621 ||
622 (eta2 < fEtaMaxJet && eta2 > fEtaMinJet &&
623 phi2 < fPhiMaxJet && phi2 > fPhiMinJet)
624 )
625 triggered = kTRUE;
626 } else if (fTrigger == 2) {
627// Gamma Jet
628//
8507138f 629 Int_t np = fParticles.GetEntriesFast();
36b81802 630 for (Int_t i = 0; i < np; i++) {
8507138f 631 TParticle* part = (TParticle*) fParticles.At(i);
36b81802 632 Int_t kf = part->GetPdgCode();
2d677e30 633 Int_t ksp = part->GetUniqueID();
634 if (kf == 22 && ksp == 40) {
36b81802 635 Float_t phi = part->Phi();
636 Float_t eta = part->Eta();
637 if (eta < fEtaMaxJet &&
638 eta > fEtaMinJet &&
639 phi < fPhiMaxJet &&
640 phi > fPhiMinJet) {
641 triggered = 1;
642 break;
643 } // check phi,eta within limits
644 } // direct gamma ?
645 } // particle loop
646 } // fTrigger == 2
647 return triggered;
648}