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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. | |
21 | // | |
22 | // andreas.morsch@cern.ch | |
23 | ||
24 | #include <TArrayI.h> | |
25 | #include <TGraph.h> | |
26 | #include <THijing.h> | |
27 | #include <TLorentzVector.h> | |
28 | #include <TPDGCode.h> | |
29 | #include <TParticle.h> | |
30 | ||
31 | #include "AliGenHijing.h" | |
32 | #include "AliGenHijingEventHeader.h" | |
33 | #include "AliRun.h" | |
7cdba479 | 34 | #include "AliHijingRndm.h" |
36b81802 | 35 | |
7cdba479 | 36 | ClassImp(AliGenHijing) |
36b81802 | 37 | |
38 | AliGenHijing::AliGenHijing() | |
39 | :AliGenMC() | |
40 | { | |
41 | // Constructor | |
42 | fParticles = 0; | |
43 | fHijing = 0; | |
44 | fDsigmaDb = 0; | |
45 | fDnDb = 0; | |
7cdba479 | 46 | AliHijingRndm::SetHijingRandom(GetRandom()); |
36b81802 | 47 | } |
48 | ||
49 | AliGenHijing::AliGenHijing(Int_t npart) | |
50 | :AliGenMC(npart) | |
51 | { | |
52 | // Default PbPb collisions at 5. 5 TeV | |
53 | // | |
54 | fName = "Hijing"; | |
55 | fTitle= "Particle Generator using HIJING"; | |
56 | ||
57 | SetEnergyCMS(); | |
58 | SetImpactParameterRange(); | |
36b81802 | 59 | SetBoostLHC(); |
60 | SetJetEtaRange(); | |
61 | SetJetPhiRange(); | |
62 | ||
63 | fKeep = 0; | |
64 | fQuench = 1; | |
65 | fShadowing = 1; | |
66 | fTrigger = 0; | |
67 | fDecaysOff = 1; | |
68 | fEvaluate = 0; | |
69 | fSelectAll = 0; | |
70 | fFlavor = 0; | |
71 | fSpectators = 1; | |
72 | fDsigmaDb = 0; | |
73 | fDnDb = 0; | |
74 | fPtMinJet = -2.5; | |
75 | fRadiation = 3; | |
76 | fEventVertex.Set(3); | |
77 | // | |
78 | SetSimpleJets(); | |
79 | SetNoGammas(); | |
80 | // | |
81 | fParticles = new TClonesArray("TParticle",10000); | |
82 | // | |
83 | // Set random number generator | |
7cdba479 | 84 | AliHijingRndm::SetHijingRandom(GetRandom()); |
36b81802 | 85 | fHijing = 0; |
86 | ||
87 | } | |
88 | ||
89 | AliGenHijing::AliGenHijing(const AliGenHijing & Hijing) | |
90 | { | |
91 | // copy constructor | |
92 | } | |
93 | ||
94 | ||
95 | AliGenHijing::~AliGenHijing() | |
96 | { | |
97 | // Destructor | |
98 | if ( fDsigmaDb) delete fDsigmaDb; | |
99 | if ( fDnDb) delete fDnDb; | |
100 | delete fParticles; | |
101 | } | |
102 | ||
103 | void AliGenHijing::Init() | |
104 | { | |
105 | // Initialisation | |
106 | fFrame.Resize(8); | |
107 | fTarget.Resize(8); | |
108 | fProjectile.Resize(8); | |
109 | ||
110 | SetMC(new THijing(fEnergyCMS, fFrame, fProjectile, fTarget, | |
111 | fAProjectile, fZProjectile, fATarget, fZTarget, | |
112 | fMinImpactParam, fMaxImpactParam)); | |
113 | ||
114 | fHijing=(THijing*) fgMCEvGen; | |
115 | fHijing->SetIHPR2(2, fRadiation); | |
116 | fHijing->SetIHPR2(3, fTrigger); | |
117 | fHijing->SetIHPR2(6, fShadowing); | |
118 | fHijing->SetIHPR2(12, fDecaysOff); | |
119 | fHijing->SetIHPR2(21, fKeep); | |
120 | fHijing->SetHIPR1(10, fPtMinJet); | |
121 | fHijing->SetHIPR1(50, fSimpleJet); | |
122 | // | |
123 | // Quenching | |
124 | // | |
125 | // | |
126 | // fQuench = 0: no quenching | |
127 | // fQuench = 1: hijing default | |
128 | // fQuench = 2: new LHC parameters for HIPR1(11) and HIPR1(14) | |
129 | // fQuench = 3: new RHIC parameters for HIPR1(11) and HIPR1(14) | |
130 | // fQuench = 4: new LHC parameters with log(e) dependence | |
131 | // fQuench = 5: new RHIC parameters with log(e) dependence | |
132 | fHijing->SetIHPR2(50, 0); | |
133 | if (fQuench > 0) | |
134 | fHijing->SetIHPR2(4, 1); | |
135 | else | |
136 | fHijing->SetIHPR2(4, 0); | |
137 | // New LHC parameters from Xin-Nian Wang | |
138 | if (fQuench == 2) { | |
139 | fHijing->SetHIPR1(14, 1.1); | |
140 | fHijing->SetHIPR1(11, 3.7); | |
141 | } else if (fQuench == 3) { | |
142 | fHijing->SetHIPR1(14, 0.20); | |
143 | fHijing->SetHIPR1(11, 2.5); | |
144 | } else if (fQuench == 4) { | |
145 | fHijing->SetIHPR2(50, 1); | |
146 | fHijing->SetHIPR1(14, 4.*0.34); | |
147 | fHijing->SetHIPR1(11, 3.7); | |
148 | } else if (fQuench == 5) { | |
149 | fHijing->SetIHPR2(50, 1); | |
150 | fHijing->SetHIPR1(14, 0.34); | |
151 | fHijing->SetHIPR1(11, 2.5); | |
152 | } | |
153 | ||
154 | ||
cc463e4a | 155 | AliGenMC::Init(); |
36b81802 | 156 | |
157 | // | |
158 | // Initialize Hijing | |
159 | // | |
160 | fHijing->Initialize(); | |
161 | // | |
162 | if (fEvaluate) EvaluateCrossSections(); | |
163 | // | |
164 | } | |
165 | ||
166 | void AliGenHijing::Generate() | |
167 | { | |
168 | // Generate one event | |
169 | ||
170 | Float_t polar[3] = {0,0,0}; | |
171 | Float_t origin[3] = {0,0,0}; | |
172 | Float_t origin0[3] = {0,0,0}; | |
173 | Float_t p[3], random[6]; | |
174 | Float_t tof; | |
175 | ||
176 | // converts from mm/c to s | |
177 | const Float_t kconv = 0.001/2.999792458e8; | |
178 | // | |
179 | Int_t nt = 0; | |
180 | Int_t jev = 0; | |
181 | Int_t j, kf, ks, imo; | |
182 | kf = 0; | |
183 | ||
184 | ||
185 | ||
186 | fTrials = 0; | |
187 | for (j = 0;j < 3; j++) origin0[j] = fOrigin[j]; | |
188 | if(fVertexSmear == kPerEvent) { | |
189 | Float_t dv[3]; | |
190 | dv[2] = 1.e10; | |
191 | while(TMath::Abs(dv[2]) > fCutVertexZ*fOsigma[2]) { | |
192 | Rndm(random,6); | |
193 | for (j=0; j < 3; j++) { | |
194 | dv[j] = fOsigma[j]*TMath::Cos(2*random[2*j]*TMath::Pi())* | |
195 | TMath::Sqrt(-2*TMath::Log(random[2*j+1])); | |
196 | } | |
197 | } | |
198 | for (j=0; j < 3; j++) origin0[j] += dv[j]; | |
199 | } else if (fVertexSmear == kPerTrack) { | |
200 | // fHijing->SetMSTP(151,0); | |
201 | for (j = 0; j < 3; j++) { | |
202 | // fHijing->SetPARP(151+j, fOsigma[j]*10.); | |
203 | } | |
204 | } | |
205 | while(1) | |
206 | { | |
207 | // Generate one event | |
208 | // -------------------------------------------------------------------------- | |
209 | fSpecn = 0; | |
210 | fSpecp = 0; | |
211 | // -------------------------------------------------------------------------- | |
212 | fHijing->GenerateEvent(); | |
213 | fTrials++; | |
214 | fHijing->ImportParticles(fParticles,"All"); | |
215 | if (fTrigger != kNoTrigger) { | |
216 | if (!CheckTrigger()) continue; | |
217 | } | |
71ea527c | 218 | if (fLHC) Boost(); |
36b81802 | 219 | |
220 | ||
221 | Int_t np = fParticles->GetEntriesFast(); | |
222 | printf("\n **************************************************%d\n",np); | |
223 | Int_t nc = 0; | |
224 | if (np == 0 ) continue; | |
225 | Int_t i; | |
226 | Int_t* newPos = new Int_t[np]; | |
227 | Int_t* pSelected = new Int_t[np]; | |
228 | ||
229 | for (i = 0; i < np; i++) { | |
230 | newPos[i] = i; | |
231 | pSelected[i] = 0; | |
232 | } | |
233 | ||
234 | // Get event vertex | |
235 | // | |
236 | TParticle * iparticle = (TParticle *) fParticles->At(0); | |
237 | fEventVertex[0] = origin0[0]; | |
238 | fEventVertex[1] = origin0[1]; | |
239 | fEventVertex[2] = origin0[2]; | |
240 | ||
241 | // | |
242 | // First select parent particles | |
243 | // | |
244 | ||
245 | for (i = 0; i < np; i++) { | |
246 | iparticle = (TParticle *) fParticles->At(i); | |
247 | ||
248 | // Is this a parent particle ? | |
249 | if (Stable(iparticle)) continue; | |
250 | // | |
251 | Bool_t selected = kTRUE; | |
252 | Bool_t hasSelectedDaughters = kFALSE; | |
253 | ||
254 | ||
255 | kf = iparticle->GetPdgCode(); | |
256 | ks = iparticle->GetStatusCode(); | |
257 | if (kf == 92) continue; | |
258 | ||
259 | if (!fSelectAll) selected = KinematicSelection(iparticle, 0) && | |
260 | SelectFlavor(kf); | |
261 | hasSelectedDaughters = DaughtersSelection(iparticle); | |
262 | // | |
263 | // Put particle on the stack if it is either selected or | |
264 | // it is the mother of at least one seleted particle | |
265 | // | |
266 | if (selected || hasSelectedDaughters) { | |
267 | nc++; | |
268 | pSelected[i] = 1; | |
269 | } // selected | |
270 | } // particle loop parents | |
271 | // | |
272 | // Now select the final state particles | |
273 | // | |
274 | ||
275 | for (i = 0; i<np; i++) { | |
276 | TParticle * iparticle = (TParticle *) fParticles->At(i); | |
277 | // Is this a final state particle ? | |
278 | if (!Stable(iparticle)) continue; | |
279 | ||
280 | Bool_t selected = kTRUE; | |
281 | kf = iparticle->GetPdgCode(); | |
282 | ks = iparticle->GetStatusCode(); | |
283 | ||
284 | // -------------------------------------------------------------------------- | |
285 | // Count spectator neutrons and protons | |
286 | if(ks == 0 || ks == 1 || ks == 10 || ks == 11){ | |
287 | if(kf == kNeutron) fSpecn += 1; | |
288 | if(kf == kProton) fSpecp += 1; | |
289 | } | |
290 | // -------------------------------------------------------------------------- | |
291 | // | |
292 | if (!fSelectAll) { | |
293 | selected = KinematicSelection(iparticle,0)&&SelectFlavor(kf); | |
294 | if (!fSpectators && selected) selected = (ks != 0 && ks != 1 && ks != 10 | |
295 | && ks != 11); | |
296 | } | |
297 | // | |
298 | // Put particle on the stack if selected | |
299 | // | |
300 | if (selected) { | |
301 | nc++; | |
302 | pSelected[i] = 1; | |
303 | } // selected | |
304 | } // particle loop final state | |
305 | // | |
306 | // Write particles to stack | |
307 | // | |
308 | for (i = 0; i<np; i++) { | |
309 | TParticle * iparticle = (TParticle *) fParticles->At(i); | |
310 | Bool_t hasMother = (iparticle->GetFirstMother() >=0); | |
311 | Bool_t hasDaughter = (iparticle->GetFirstDaughter() >=0); | |
312 | ||
313 | if (pSelected[i]) { | |
314 | kf = iparticle->GetPdgCode(); | |
315 | ks = iparticle->GetStatusCode(); | |
316 | p[0] = iparticle->Px(); | |
317 | p[1] = iparticle->Py(); | |
318 | p[2] = iparticle->Pz(); | |
319 | origin[0] = origin0[0]+iparticle->Vx()/10; | |
320 | origin[1] = origin0[1]+iparticle->Vy()/10; | |
321 | origin[2] = origin0[2]+iparticle->Vz()/10; | |
322 | tof = kconv*iparticle->T(); | |
323 | imo = -1; | |
324 | TParticle* mother = 0; | |
325 | if (hasMother) { | |
326 | imo = iparticle->GetFirstMother(); | |
327 | mother = (TParticle *) fParticles->At(imo); | |
328 | imo = (mother->GetPdgCode() != 92) ? imo = newPos[imo] : -1; | |
329 | } // if has mother | |
330 | Bool_t tFlag = (fTrackIt && !hasDaughter); | |
331 | SetTrack(tFlag,imo,kf,p,origin,polar, | |
332 | tof,kPNoProcess,nt, 1., ks); | |
333 | KeepTrack(nt); | |
334 | newPos[i] = nt; | |
335 | } // if selected | |
336 | } // particle loop | |
337 | delete[] newPos; | |
338 | delete[] pSelected; | |
339 | ||
340 | printf("\n I've put %i particles on the stack \n",nc); | |
341 | if (nc > 0) { | |
342 | jev += nc; | |
343 | if (jev >= fNpart || fNpart == -1) { | |
344 | fKineBias = Float_t(fNpart)/Float_t(fTrials); | |
345 | printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev); | |
346 | break; | |
347 | } | |
348 | } | |
349 | } // event loop | |
350 | MakeHeader(); | |
351 | SetHighWaterMark(nt); | |
352 | } | |
353 | ||
354 | void AliGenHijing::KeepFullEvent() | |
355 | { | |
356 | fKeep=1; | |
357 | } | |
358 | ||
359 | void AliGenHijing::EvaluateCrossSections() | |
360 | { | |
361 | // Glauber Calculation of geometrical x-section | |
362 | // | |
363 | Float_t xTot = 0.; // barn | |
364 | Float_t xTotHard = 0.; // barn | |
365 | Float_t xPart = 0.; // barn | |
366 | Float_t xPartHard = 0.; // barn | |
367 | Float_t sigmaHard = 0.1; // mbarn | |
368 | Float_t bMin = 0.; | |
369 | Float_t bMax = fHijing->GetHIPR1(34)+fHijing->GetHIPR1(35); | |
370 | const Float_t kdib = 0.2; | |
371 | Int_t kMax = Int_t((bMax-bMin)/kdib)+1; | |
372 | ||
373 | ||
374 | printf("\n Projectile Radius (fm): %f \n",fHijing->GetHIPR1(34)); | |
375 | printf("\n Target Radius (fm): %f \n",fHijing->GetHIPR1(35)); | |
376 | Int_t i; | |
377 | Float_t oldvalue= 0.; | |
378 | ||
379 | Float_t* b = new Float_t[kMax]; | |
380 | Float_t* si1 = new Float_t[kMax]; | |
381 | Float_t* si2 = new Float_t[kMax]; | |
382 | ||
383 | for (i = 0; i < kMax; i++) | |
384 | { | |
385 | Float_t xb = bMin+i*kdib; | |
386 | Float_t ov; | |
387 | ov=fHijing->Profile(xb); | |
388 | Float_t gb = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*(1.-TMath::Exp(-fHijing->GetHINT1(12)*ov)); | |
389 | Float_t gbh = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*sigmaHard*ov; | |
390 | xTot+=gb; | |
391 | xTotHard += gbh; | |
392 | printf("profile %f %f %f\n", xb, ov, fHijing->GetHINT1(12)); | |
393 | ||
394 | if (xb > fMinImpactParam && xb < fMaxImpactParam) | |
395 | { | |
396 | xPart += gb; | |
397 | xPartHard += gbh; | |
398 | } | |
399 | ||
400 | if(oldvalue) if ((xTot-oldvalue)/oldvalue<0.0001) break; | |
401 | oldvalue = xTot; | |
402 | printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot); | |
403 | printf("\n Hard cross section (barn): %d %f %f \n\n",i, xb, xTotHard); | |
404 | if (i>0) { | |
405 | si1[i] = gb/kdib; | |
406 | si2[i] = gbh/gb; | |
407 | b[i] = xb; | |
408 | } | |
409 | } | |
410 | ||
411 | printf("\n Total cross section (barn): %f \n",xTot); | |
412 | printf("\n Hard cross section (barn): %f \n \n",xTotHard); | |
413 | printf("\n Partial cross section (barn): %f %f \n",xPart, xPart/xTot*100.); | |
414 | printf("\n Partial hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.); | |
415 | ||
416 | // Store result as a graph | |
417 | b[0] = 0; | |
418 | si1[0] = 0; | |
419 | si2[0]=si2[1]; | |
420 | ||
421 | fDsigmaDb = new TGraph(i, b, si1); | |
422 | fDnDb = new TGraph(i, b, si2); | |
423 | } | |
424 | ||
425 | Bool_t AliGenHijing::DaughtersSelection(TParticle* iparticle) | |
426 | { | |
427 | // | |
428 | // Looks recursively if one of the daughters has been selected | |
429 | // | |
430 | // printf("\n Consider daughters %d:",iparticle->GetPdgCode()); | |
431 | Int_t imin = -1; | |
432 | Int_t imax = -1; | |
433 | Int_t i; | |
434 | Bool_t hasDaughters = (iparticle->GetFirstDaughter() >=0); | |
435 | Bool_t selected = kFALSE; | |
436 | if (hasDaughters) { | |
437 | imin = iparticle->GetFirstDaughter(); | |
438 | imax = iparticle->GetLastDaughter(); | |
439 | for (i = imin; i <= imax; i++){ | |
440 | TParticle * jparticle = (TParticle *) fParticles->At(i); | |
441 | Int_t ip = jparticle->GetPdgCode(); | |
442 | if (KinematicSelection(jparticle,0)&&SelectFlavor(ip)) { | |
443 | selected=kTRUE; break; | |
444 | } | |
445 | if (DaughtersSelection(jparticle)) {selected=kTRUE; break; } | |
446 | } | |
447 | } else { | |
448 | return kFALSE; | |
449 | } | |
450 | return selected; | |
451 | } | |
452 | ||
453 | ||
454 | Bool_t AliGenHijing::SelectFlavor(Int_t pid) | |
455 | { | |
456 | // Select flavor of particle | |
457 | // 0: all | |
458 | // 4: charm and beauty | |
459 | // 5: beauty | |
460 | Bool_t res = 0; | |
461 | ||
462 | if (fFlavor == 0) { | |
463 | res = kTRUE; | |
464 | } else { | |
465 | Int_t ifl = TMath::Abs(pid/100); | |
466 | if (ifl > 10) ifl/=10; | |
467 | res = (fFlavor == ifl); | |
468 | } | |
469 | // | |
470 | // This part if gamma writing is inhibited | |
471 | if (fNoGammas) | |
472 | res = res && (pid != kGamma && pid != kPi0); | |
473 | // | |
474 | return res; | |
475 | } | |
476 | ||
477 | Bool_t AliGenHijing::Stable(TParticle* particle) | |
478 | { | |
479 | // Return true for a stable particle | |
480 | // | |
481 | ||
482 | if (particle->GetFirstDaughter() < 0 ) | |
483 | { | |
484 | return kTRUE; | |
485 | } else { | |
486 | return kFALSE; | |
487 | } | |
488 | } | |
489 | ||
490 | ||
36b81802 | 491 | |
492 | void AliGenHijing::MakeHeader() | |
493 | { | |
494 | // Builds the event header, to be called after each event | |
495 | AliGenEventHeader* header = new AliGenHijingEventHeader("Hijing"); | |
496 | ((AliGenHijingEventHeader*) header)->SetNProduced(fHijing->GetNATT()); | |
497 | ((AliGenHijingEventHeader*) header)->SetImpactParameter(fHijing->GetHINT1(19)); | |
498 | ((AliGenHijingEventHeader*) header)->SetTotalEnergy(fHijing->GetEATT()); | |
499 | ((AliGenHijingEventHeader*) header)->SetHardScatters(fHijing->GetJATT()); | |
500 | ((AliGenHijingEventHeader*) header)->SetParticipants(fHijing->GetNP(), fHijing->GetNT()); | |
501 | ((AliGenHijingEventHeader*) header)->SetCollisions(fHijing->GetN0(), | |
502 | fHijing->GetN01(), | |
503 | fHijing->GetN10(), | |
504 | fHijing->GetN11()); | |
505 | ((AliGenHijingEventHeader*) header)->SetSpectators(fSpecn, fSpecp); | |
506 | ||
507 | // 4-momentum vectors of the triggered jets. | |
508 | // | |
509 | // Before final state gluon radiation. | |
510 | TLorentzVector* jet1 = new TLorentzVector(fHijing->GetHINT1(21), | |
511 | fHijing->GetHINT1(22), | |
512 | fHijing->GetHINT1(23), | |
513 | fHijing->GetHINT1(24)); | |
514 | ||
515 | TLorentzVector* jet2 = new TLorentzVector(fHijing->GetHINT1(31), | |
516 | fHijing->GetHINT1(32), | |
517 | fHijing->GetHINT1(33), | |
518 | fHijing->GetHINT1(34)); | |
519 | // After final state gluon radiation. | |
520 | TLorentzVector* jet3 = new TLorentzVector(fHijing->GetHINT1(26), | |
521 | fHijing->GetHINT1(27), | |
522 | fHijing->GetHINT1(28), | |
523 | fHijing->GetHINT1(29)); | |
524 | ||
525 | TLorentzVector* jet4 = new TLorentzVector(fHijing->GetHINT1(36), | |
526 | fHijing->GetHINT1(37), | |
527 | fHijing->GetHINT1(38), | |
528 | fHijing->GetHINT1(39)); | |
529 | ((AliGenHijingEventHeader*) header)->SetJets(jet1, jet2, jet3, jet4); | |
530 | // Bookkeeping for kinematic bias | |
531 | ((AliGenHijingEventHeader*) header)->SetTrials(fTrials); | |
532 | // Event Vertex | |
533 | header->SetPrimaryVertex(fEventVertex); | |
534 | gAlice->SetGenEventHeader(header); | |
535 | fCollisionGeometry = (AliGenHijingEventHeader*) header; | |
536 | } | |
537 | ||
538 | Bool_t AliGenHijing::CheckTrigger() | |
539 | { | |
540 | // Check the kinematic trigger condition | |
541 | // | |
542 | Bool_t triggered = kFALSE; | |
543 | ||
544 | if (fTrigger == 1) { | |
545 | // | |
546 | // jet-jet Trigger | |
547 | ||
548 | TLorentzVector* jet1 = new TLorentzVector(fHijing->GetHINT1(26), | |
549 | fHijing->GetHINT1(27), | |
550 | fHijing->GetHINT1(28), | |
551 | fHijing->GetHINT1(29)); | |
552 | ||
553 | TLorentzVector* jet2 = new TLorentzVector(fHijing->GetHINT1(36), | |
554 | fHijing->GetHINT1(37), | |
555 | fHijing->GetHINT1(38), | |
556 | fHijing->GetHINT1(39)); | |
557 | Double_t eta1 = jet1->Eta(); | |
558 | Double_t eta2 = jet2->Eta(); | |
559 | Double_t phi1 = jet1->Phi(); | |
560 | Double_t phi2 = jet2->Phi(); | |
561 | // printf("\n Trigger: %f %f %f %f", | |
562 | // fEtaMinJet, fEtaMaxJet, fPhiMinJet, fPhiMaxJet); | |
563 | if ( | |
564 | (eta1 < fEtaMaxJet && eta1 > fEtaMinJet && | |
565 | phi1 < fPhiMaxJet && phi1 > fPhiMinJet) | |
566 | || | |
567 | (eta2 < fEtaMaxJet && eta2 > fEtaMinJet && | |
568 | phi2 < fPhiMaxJet && phi2 > fPhiMinJet) | |
569 | ) | |
570 | triggered = kTRUE; | |
571 | } else if (fTrigger == 2) { | |
572 | // Gamma Jet | |
573 | // | |
574 | Int_t np = fParticles->GetEntriesFast(); | |
575 | for (Int_t i = 0; i < np; i++) { | |
576 | TParticle* part = (TParticle*) fParticles->At(i); | |
577 | Int_t kf = part->GetPdgCode(); | |
578 | Int_t ks = part->GetStatusCode(); | |
579 | if (kf == 22 && ks == 40) { | |
580 | Float_t phi = part->Phi(); | |
581 | Float_t eta = part->Eta(); | |
582 | if (eta < fEtaMaxJet && | |
583 | eta > fEtaMinJet && | |
584 | phi < fPhiMaxJet && | |
585 | phi > fPhiMinJet) { | |
586 | triggered = 1; | |
587 | break; | |
588 | } // check phi,eta within limits | |
589 | } // direct gamma ? | |
590 | } // particle loop | |
591 | } // fTrigger == 2 | |
592 | return triggered; | |
593 | } | |
594 | ||
595 | ||
596 | ||
597 | ||
598 | AliGenHijing& AliGenHijing::operator=(const AliGenHijing& rhs) | |
599 | { | |
600 | // Assignment operator | |
601 | return *this; | |
602 | } | |
603 |