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8d2cd130 | 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 | /* $Id$ */ |
8d2cd130 | 17 | |
18 | // | |
19 | // Generator using the TPythia interface (via AliPythia) | |
20 | // to generate pp collisions. | |
21 | // Using SetNuclei() also nuclear modifications to the structure functions | |
22 | // can be taken into account. This makes, of course, only sense for the | |
23 | // generation of the products of hard processes (heavy flavor, jets ...) | |
24 | // | |
25 | // andreas.morsch@cern.ch | |
26 | // | |
27 | ||
37b09b91 | 28 | #include <TClonesArray.h> |
8d2cd130 | 29 | #include <TDatabasePDG.h> |
30 | #include <TParticle.h> | |
31 | #include <TPDGCode.h> | |
1058d9df | 32 | #include <TObjArray.h> |
8d2cd130 | 33 | #include <TSystem.h> |
34 | #include <TTree.h> | |
8d2cd130 | 35 | #include "AliConst.h" |
36 | #include "AliDecayerPythia.h" | |
37 | #include "AliGenPythia.h" | |
cd07c39b | 38 | #include "AliFastGlauber.h" |
5fa4b20b | 39 | #include "AliHeader.h" |
8d2cd130 | 40 | #include "AliGenPythiaEventHeader.h" |
41 | #include "AliPythia.h" | |
7cdba479 | 42 | #include "AliPythiaRndm.h" |
8d2cd130 | 43 | #include "AliRun.h" |
7ea3ea5b | 44 | #include "AliStack.h" |
45 | #include "AliRunLoader.h" | |
5d12ce38 | 46 | #include "AliMC.h" |
e2d34d35 | 47 | #include "PyquenCommon.h" |
8d2cd130 | 48 | |
014a9521 | 49 | ClassImp(AliGenPythia) |
8d2cd130 | 50 | |
e8a8adcd | 51 | |
52 | AliGenPythia::AliGenPythia(): | |
53 | AliGenMC(), | |
54 | fProcess(kPyCharm), | |
efe3b1cd | 55 | fItune(-1), |
e8a8adcd | 56 | fStrucFunc(kCTEQ5L), |
e8a8adcd | 57 | fKineBias(0.), |
58 | fTrials(0), | |
59 | fTrialsRun(0), | |
60 | fQ(0.), | |
61 | fX1(0.), | |
62 | fX2(0.), | |
63 | fEventTime(0.), | |
64 | fInteractionRate(0.), | |
65 | fTimeWindow(0.), | |
66 | fCurSubEvent(0), | |
67 | fEventsTime(0), | |
68 | fNev(0), | |
69 | fFlavorSelect(0), | |
70 | fXsection(0.), | |
71 | fPythia(0), | |
72 | fPtHardMin(0.), | |
73 | fPtHardMax(1.e4), | |
74 | fYHardMin(-1.e10), | |
75 | fYHardMax(1.e10), | |
76 | fGinit(1), | |
77 | fGfinal(1), | |
78 | fHadronisation(1), | |
79 | fNpartons(0), | |
80 | fReadFromFile(0), | |
81 | fQuench(0), | |
cd07c39b | 82 | fQhat(0.), |
83 | fLength(0.), | |
e6fe9b82 | 84 | fImpact(0.), |
e8a8adcd | 85 | fPtKick(1.), |
86 | fFullEvent(kTRUE), | |
87 | fDecayer(new AliDecayerPythia()), | |
88 | fDebugEventFirst(-1), | |
89 | fDebugEventLast(-1), | |
90 | fEtMinJet(0.), | |
91 | fEtMaxJet(1.e4), | |
92 | fEtaMinJet(-20.), | |
93 | fEtaMaxJet(20.), | |
94 | fPhiMinJet(0.), | |
95 | fPhiMaxJet(2.* TMath::Pi()), | |
96 | fJetReconstruction(kCell), | |
97 | fEtaMinGamma(-20.), | |
98 | fEtaMaxGamma(20.), | |
99 | fPhiMinGamma(0.), | |
100 | fPhiMaxGamma(2. * TMath::Pi()), | |
101 | fPycellEtaMax(2.), | |
102 | fPycellNEta(274), | |
103 | fPycellNPhi(432), | |
104 | fPycellThreshold(0.), | |
105 | fPycellEtSeed(4.), | |
106 | fPycellMinEtJet(10.), | |
107 | fPycellMaxRadius(1.), | |
108 | fStackFillOpt(kFlavorSelection), | |
109 | fFeedDownOpt(kTRUE), | |
110 | fFragmentation(kTRUE), | |
111 | fSetNuclei(kFALSE), | |
112 | fNewMIS(kFALSE), | |
113 | fHFoff(kFALSE), | |
20e47f08 | 114 | fNucPdf(0), |
e8a8adcd | 115 | fTriggerParticle(0), |
116 | fTriggerEta(0.9), | |
700b9416 | 117 | fTriggerMultiplicity(0), |
118 | fTriggerMultiplicityEta(0), | |
38112f3f | 119 | fTriggerMultiplicityPtMin(0), |
e8a8adcd | 120 | fCountMode(kCountAll), |
121 | fHeader(0), | |
122 | fRL(0), | |
ec2c406e | 123 | fFileName(0), |
9fd8e520 | 124 | fFragPhotonInCalo(kFALSE), |
ec2c406e | 125 | fPi0InCalo(kFALSE) , |
90a236ce | 126 | fPhotonInCalo(kFALSE), |
9dfe63b3 | 127 | fEleInEMCAL(kFALSE), |
9fd8e520 | 128 | fCheckEMCAL(kFALSE), |
129 | fCheckPHOS(kFALSE), | |
90a236ce | 130 | fCheckPHOSeta(kFALSE), |
9fd8e520 | 131 | fFragPhotonOrPi0MinPt(0), |
90a236ce | 132 | fPhotonMinPt(0), |
9dfe63b3 | 133 | fElectronMinPt(0), |
9fd8e520 | 134 | fPHOSMinPhi(219.), |
135 | fPHOSMaxPhi(321.), | |
136 | fPHOSEta(0.13), | |
137 | fEMCALMinPhi(79.), | |
138 | fEMCALMaxPhi(191.), | |
139 | fEMCALEta(0.71) | |
ec2c406e | 140 | |
8d2cd130 | 141 | { |
142 | // Default Constructor | |
e7c989e4 | 143 | fEnergyCMS = 5500.; |
7cdba479 | 144 | if (!AliPythiaRndm::GetPythiaRandom()) |
e8a8adcd | 145 | AliPythiaRndm::SetPythiaRandom(GetRandom()); |
8d2cd130 | 146 | } |
147 | ||
148 | AliGenPythia::AliGenPythia(Int_t npart) | |
e8a8adcd | 149 | :AliGenMC(npart), |
150 | fProcess(kPyCharm), | |
efe3b1cd | 151 | fItune(-1), |
e8a8adcd | 152 | fStrucFunc(kCTEQ5L), |
e8a8adcd | 153 | fKineBias(0.), |
154 | fTrials(0), | |
155 | fTrialsRun(0), | |
156 | fQ(0.), | |
157 | fX1(0.), | |
158 | fX2(0.), | |
159 | fEventTime(0.), | |
160 | fInteractionRate(0.), | |
161 | fTimeWindow(0.), | |
162 | fCurSubEvent(0), | |
163 | fEventsTime(0), | |
164 | fNev(0), | |
165 | fFlavorSelect(0), | |
166 | fXsection(0.), | |
167 | fPythia(0), | |
168 | fPtHardMin(0.), | |
169 | fPtHardMax(1.e4), | |
170 | fYHardMin(-1.e10), | |
171 | fYHardMax(1.e10), | |
172 | fGinit(kTRUE), | |
173 | fGfinal(kTRUE), | |
174 | fHadronisation(kTRUE), | |
175 | fNpartons(0), | |
176 | fReadFromFile(kFALSE), | |
177 | fQuench(kFALSE), | |
cd07c39b | 178 | fQhat(0.), |
179 | fLength(0.), | |
e6fe9b82 | 180 | fImpact(0.), |
e8a8adcd | 181 | fPtKick(1.), |
182 | fFullEvent(kTRUE), | |
183 | fDecayer(new AliDecayerPythia()), | |
184 | fDebugEventFirst(-1), | |
185 | fDebugEventLast(-1), | |
186 | fEtMinJet(0.), | |
187 | fEtMaxJet(1.e4), | |
188 | fEtaMinJet(-20.), | |
189 | fEtaMaxJet(20.), | |
190 | fPhiMinJet(0.), | |
191 | fPhiMaxJet(2.* TMath::Pi()), | |
192 | fJetReconstruction(kCell), | |
193 | fEtaMinGamma(-20.), | |
194 | fEtaMaxGamma(20.), | |
195 | fPhiMinGamma(0.), | |
196 | fPhiMaxGamma(2. * TMath::Pi()), | |
197 | fPycellEtaMax(2.), | |
198 | fPycellNEta(274), | |
199 | fPycellNPhi(432), | |
200 | fPycellThreshold(0.), | |
201 | fPycellEtSeed(4.), | |
202 | fPycellMinEtJet(10.), | |
203 | fPycellMaxRadius(1.), | |
204 | fStackFillOpt(kFlavorSelection), | |
205 | fFeedDownOpt(kTRUE), | |
206 | fFragmentation(kTRUE), | |
207 | fSetNuclei(kFALSE), | |
208 | fNewMIS(kFALSE), | |
209 | fHFoff(kFALSE), | |
20e47f08 | 210 | fNucPdf(0), |
e8a8adcd | 211 | fTriggerParticle(0), |
212 | fTriggerEta(0.9), | |
700b9416 | 213 | fTriggerMultiplicity(0), |
214 | fTriggerMultiplicityEta(0), | |
38112f3f | 215 | fTriggerMultiplicityPtMin(0), |
e8a8adcd | 216 | fCountMode(kCountAll), |
217 | fHeader(0), | |
218 | fRL(0), | |
ec2c406e | 219 | fFileName(0), |
9fd8e520 | 220 | fFragPhotonInCalo(kFALSE), |
ec2c406e | 221 | fPi0InCalo(kFALSE) , |
90a236ce | 222 | fPhotonInCalo(kFALSE), |
9dfe63b3 | 223 | fEleInEMCAL(kFALSE), |
9fd8e520 | 224 | fCheckEMCAL(kFALSE), |
225 | fCheckPHOS(kFALSE), | |
90a236ce | 226 | fCheckPHOSeta(kFALSE), |
9fd8e520 | 227 | fFragPhotonOrPi0MinPt(0), |
90a236ce | 228 | fPhotonMinPt(0), |
9dfe63b3 | 229 | fElectronMinPt(0), |
9fd8e520 | 230 | fPHOSMinPhi(219.), |
231 | fPHOSMaxPhi(321.), | |
232 | fPHOSEta(0.13), | |
233 | fEMCALMinPhi(79.), | |
234 | fEMCALMaxPhi(191.), | |
235 | fEMCALEta(0.71) | |
8d2cd130 | 236 | { |
237 | // default charm production at 5. 5 TeV | |
238 | // semimuonic decay | |
239 | // structure function GRVHO | |
240 | // | |
e7c989e4 | 241 | fEnergyCMS = 5500.; |
8d2cd130 | 242 | fName = "Pythia"; |
243 | fTitle= "Particle Generator using PYTHIA"; | |
8d2cd130 | 244 | SetForceDecay(); |
8d2cd130 | 245 | // Set random number generator |
7cdba479 | 246 | if (!AliPythiaRndm::GetPythiaRandom()) |
247 | AliPythiaRndm::SetPythiaRandom(GetRandom()); | |
76d6ba9a | 248 | } |
8d2cd130 | 249 | |
8d2cd130 | 250 | AliGenPythia::~AliGenPythia() |
251 | { | |
252 | // Destructor | |
9d7108a7 | 253 | if(fEventsTime) delete fEventsTime; |
254 | } | |
255 | ||
256 | void AliGenPythia::SetInteractionRate(Float_t rate,Float_t timewindow) | |
257 | { | |
258 | // Generate pileup using user specified rate | |
259 | fInteractionRate = rate; | |
260 | fTimeWindow = timewindow; | |
261 | GeneratePileup(); | |
262 | } | |
263 | ||
264 | void AliGenPythia::GeneratePileup() | |
265 | { | |
266 | // Generate sub events time for pileup | |
267 | fEventsTime = 0; | |
268 | if(fInteractionRate == 0.) { | |
269 | Warning("GeneratePileup","Zero interaction specified. Skipping pileup generation.\n"); | |
270 | return; | |
271 | } | |
272 | ||
273 | Int_t npart = NumberParticles(); | |
274 | if(npart < 0) { | |
275 | Warning("GeneratePileup","Negative number of particles. Skipping pileup generation.\n"); | |
276 | return; | |
277 | } | |
278 | ||
279 | if(fEventsTime) delete fEventsTime; | |
280 | fEventsTime = new TArrayF(npart); | |
281 | TArrayF &array = *fEventsTime; | |
282 | for(Int_t ipart = 0; ipart < npart; ipart++) | |
283 | array[ipart] = 0.; | |
284 | ||
285 | Float_t eventtime = 0.; | |
286 | while(1) | |
287 | { | |
288 | eventtime += (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); | |
289 | if(eventtime > fTimeWindow) break; | |
290 | array.Set(array.GetSize()+1); | |
291 | array[array.GetSize()-1] = eventtime; | |
292 | } | |
293 | ||
294 | eventtime = 0.; | |
295 | while(1) | |
296 | { | |
297 | eventtime -= (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); | |
298 | if(TMath::Abs(eventtime) > fTimeWindow) break; | |
299 | array.Set(array.GetSize()+1); | |
300 | array[array.GetSize()-1] = eventtime; | |
301 | } | |
302 | ||
303 | SetNumberParticles(fEventsTime->GetSize()); | |
8d2cd130 | 304 | } |
305 | ||
592f8307 | 306 | void AliGenPythia::SetPycellParameters(Float_t etamax, Int_t neta, Int_t nphi, |
307 | Float_t thresh, Float_t etseed, Float_t minet, Float_t r) | |
308 | { | |
309 | // Set pycell parameters | |
310 | fPycellEtaMax = etamax; | |
311 | fPycellNEta = neta; | |
312 | fPycellNPhi = nphi; | |
313 | fPycellThreshold = thresh; | |
314 | fPycellEtSeed = etseed; | |
315 | fPycellMinEtJet = minet; | |
316 | fPycellMaxRadius = r; | |
317 | } | |
318 | ||
319 | ||
320 | ||
8d2cd130 | 321 | void AliGenPythia::SetEventListRange(Int_t eventFirst, Int_t eventLast) |
322 | { | |
323 | // Set a range of event numbers, for which a table | |
324 | // of generated particle will be printed | |
325 | fDebugEventFirst = eventFirst; | |
326 | fDebugEventLast = eventLast; | |
327 | if (fDebugEventLast==-1) fDebugEventLast=fDebugEventFirst; | |
328 | } | |
329 | ||
330 | void AliGenPythia::Init() | |
331 | { | |
332 | // Initialisation | |
333 | ||
334 | SetMC(AliPythia::Instance()); | |
b88f5cea | 335 | fPythia=(AliPythia*) fMCEvGen; |
e2bddf81 | 336 | |
8d2cd130 | 337 | // |
338 | fParentWeight=1./Float_t(fNpart); | |
339 | // | |
8d2cd130 | 340 | |
341 | ||
342 | fPythia->SetCKIN(3,fPtHardMin); | |
343 | fPythia->SetCKIN(4,fPtHardMax); | |
344 | fPythia->SetCKIN(7,fYHardMin); | |
345 | fPythia->SetCKIN(8,fYHardMax); | |
346 | ||
20e47f08 | 347 | if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget, fNucPdf); |
8d2cd130 | 348 | // Fragmentation? |
349 | if (fFragmentation) { | |
350 | fPythia->SetMSTP(111,1); | |
351 | } else { | |
352 | fPythia->SetMSTP(111,0); | |
353 | } | |
354 | ||
355 | ||
356 | // initial state radiation | |
357 | fPythia->SetMSTP(61,fGinit); | |
358 | // final state radiation | |
359 | fPythia->SetMSTP(71,fGfinal); | |
360 | // pt - kick | |
361 | if (fPtKick > 0.) { | |
362 | fPythia->SetMSTP(91,1); | |
688950ef | 363 | fPythia->SetPARP(91,fPtKick); |
364 | fPythia->SetPARP(93, 4. * fPtKick); | |
8d2cd130 | 365 | } else { |
366 | fPythia->SetMSTP(91,0); | |
367 | } | |
368 | ||
5fa4b20b | 369 | |
370 | if (fReadFromFile) { | |
371 | fRL = AliRunLoader::Open(fFileName, "Partons"); | |
372 | fRL->LoadKinematics(); | |
373 | fRL->LoadHeader(); | |
374 | } else { | |
375 | fRL = 0x0; | |
376 | } | |
fdea4387 | 377 | // |
efe3b1cd | 378 | fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc, fItune); |
fdea4387 | 379 | // Forward Paramters to the AliPythia object |
380 | fDecayer->SetForceDecay(fForceDecay); | |
beac474c | 381 | // Switch off Heavy Flavors on request |
382 | if (fHFoff) { | |
51387949 | 383 | // Maximum number of quark flavours used in pdf |
beac474c | 384 | fPythia->SetMSTP(58, 3); |
51387949 | 385 | // Maximum number of flavors that can be used in showers |
beac474c | 386 | fPythia->SetMSTJ(45, 3); |
51387949 | 387 | // Switch off g->QQbar splitting in decay table |
388 | ((AliDecayerPythia*) fDecayer)->HeavyFlavourOff(); | |
beac474c | 389 | } |
fdea4387 | 390 | |
51387949 | 391 | fDecayer->Init(); |
392 | ||
8d2cd130 | 393 | |
394 | // Parent and Children Selection | |
395 | switch (fProcess) | |
396 | { | |
65f2626c | 397 | case kPyOldUEQ2ordered: |
398 | case kPyOldUEQ2ordered2: | |
399 | case kPyOldPopcorn: | |
400 | break; | |
8d2cd130 | 401 | case kPyCharm: |
402 | case kPyCharmUnforced: | |
adf4d898 | 403 | case kPyCharmPbPbMNR: |
aabc7187 | 404 | case kPyCharmpPbMNR: |
e0e89f40 | 405 | case kPyCharmppMNR: |
406 | case kPyCharmppMNRwmi: | |
8d2cd130 | 407 | fParentSelect[0] = 411; |
408 | fParentSelect[1] = 421; | |
409 | fParentSelect[2] = 431; | |
410 | fParentSelect[3] = 4122; | |
9ccc3d0e | 411 | fParentSelect[4] = 4232; |
412 | fParentSelect[5] = 4132; | |
413 | fParentSelect[6] = 4332; | |
8d2cd130 | 414 | fFlavorSelect = 4; |
415 | break; | |
adf4d898 | 416 | case kPyD0PbPbMNR: |
417 | case kPyD0pPbMNR: | |
418 | case kPyD0ppMNR: | |
8d2cd130 | 419 | fParentSelect[0] = 421; |
420 | fFlavorSelect = 4; | |
421 | break; | |
90d7b703 | 422 | case kPyDPlusPbPbMNR: |
423 | case kPyDPluspPbMNR: | |
424 | case kPyDPlusppMNR: | |
425 | fParentSelect[0] = 411; | |
426 | fFlavorSelect = 4; | |
427 | break; | |
e0e89f40 | 428 | case kPyDPlusStrangePbPbMNR: |
429 | case kPyDPlusStrangepPbMNR: | |
430 | case kPyDPlusStrangeppMNR: | |
431 | fParentSelect[0] = 431; | |
432 | fFlavorSelect = 4; | |
433 | break; | |
8d2cd130 | 434 | case kPyBeauty: |
9dfe63b3 | 435 | case kPyBeautyJets: |
adf4d898 | 436 | case kPyBeautyPbPbMNR: |
437 | case kPyBeautypPbMNR: | |
438 | case kPyBeautyppMNR: | |
e0e89f40 | 439 | case kPyBeautyppMNRwmi: |
8d2cd130 | 440 | fParentSelect[0]= 511; |
441 | fParentSelect[1]= 521; | |
442 | fParentSelect[2]= 531; | |
443 | fParentSelect[3]= 5122; | |
444 | fParentSelect[4]= 5132; | |
445 | fParentSelect[5]= 5232; | |
446 | fParentSelect[6]= 5332; | |
447 | fFlavorSelect = 5; | |
448 | break; | |
449 | case kPyBeautyUnforced: | |
450 | fParentSelect[0] = 511; | |
451 | fParentSelect[1] = 521; | |
452 | fParentSelect[2] = 531; | |
453 | fParentSelect[3] = 5122; | |
454 | fParentSelect[4] = 5132; | |
455 | fParentSelect[5] = 5232; | |
456 | fParentSelect[6] = 5332; | |
457 | fFlavorSelect = 5; | |
458 | break; | |
459 | case kPyJpsiChi: | |
460 | case kPyJpsi: | |
461 | fParentSelect[0] = 443; | |
462 | break; | |
f529e69b | 463 | case kPyMbDefault: |
0bd3d7c5 | 464 | case kPyMbAtlasTuneMC09: |
8d2cd130 | 465 | case kPyMb: |
04081a91 | 466 | case kPyMbWithDirectPhoton: |
8d2cd130 | 467 | case kPyMbNonDiffr: |
d7de4a67 | 468 | case kPyMbMSEL1: |
8d2cd130 | 469 | case kPyJets: |
470 | case kPyDirectGamma: | |
e33acb67 | 471 | case kPyLhwgMb: |
8d2cd130 | 472 | break; |
589380c6 | 473 | case kPyW: |
0f6ee828 | 474 | case kPyZ: |
589380c6 | 475 | break; |
8d2cd130 | 476 | } |
477 | // | |
592f8307 | 478 | // |
479 | // JetFinder for Trigger | |
480 | // | |
481 | // Configure detector (EMCAL like) | |
482 | // | |
d7de4a67 | 483 | fPythia->SetPARU(51, fPycellEtaMax); |
484 | fPythia->SetMSTU(51, fPycellNEta); | |
485 | fPythia->SetMSTU(52, fPycellNPhi); | |
592f8307 | 486 | // |
487 | // Configure Jet Finder | |
488 | // | |
d7de4a67 | 489 | fPythia->SetPARU(58, fPycellThreshold); |
490 | fPythia->SetPARU(52, fPycellEtSeed); | |
491 | fPythia->SetPARU(53, fPycellMinEtJet); | |
492 | fPythia->SetPARU(54, fPycellMaxRadius); | |
493 | fPythia->SetMSTU(54, 2); | |
592f8307 | 494 | // |
8d2cd130 | 495 | // This counts the total number of calls to Pyevnt() per run. |
496 | fTrialsRun = 0; | |
497 | fQ = 0.; | |
498 | fX1 = 0.; | |
499 | fX2 = 0.; | |
500 | fNev = 0 ; | |
501 | // | |
1d568bc2 | 502 | // |
503 | // | |
8d2cd130 | 504 | AliGenMC::Init(); |
1d568bc2 | 505 | // |
506 | // | |
507 | // | |
508 | if (fSetNuclei) { | |
509 | fDyBoost = 0; | |
510 | Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n"); | |
511 | } | |
d7de4a67 | 512 | |
cd07c39b | 513 | fPythia->SetPARJ(200, 0.0); |
514 | fPythia->SetPARJ(199, 0.0); | |
515 | fPythia->SetPARJ(198, 0.0); | |
516 | fPythia->SetPARJ(197, 0.0); | |
517 | ||
518 | if (fQuench == 1) { | |
5fa4b20b | 519 | fPythia->InitQuenching(0., 0.1, 0.6e6, 0); |
32d6ef7d | 520 | } |
3a709cfa | 521 | |
b976f7d8 | 522 | if (fQuench == 3) { |
523 | // Nestor's change of the splittings | |
524 | fPythia->SetPARJ(200, 0.8); | |
525 | fPythia->SetMSTJ(41, 1); // QCD radiation only | |
526 | fPythia->SetMSTJ(42, 2); // angular ordering | |
527 | fPythia->SetMSTJ(44, 2); // option to run alpha_s | |
528 | fPythia->SetMSTJ(47, 0); // No correction back to hard scattering element | |
529 | fPythia->SetMSTJ(50, 0); // No coherence in first branching | |
530 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers | |
cd07c39b | 531 | } else if (fQuench == 4) { |
532 | // Armesto-Cunqueiro-Salgado change of the splittings. | |
533 | AliFastGlauber* glauber = AliFastGlauber::Instance(); | |
534 | glauber->Init(2); | |
535 | //read and store transverse almonds corresponding to differnt | |
536 | //impact parameters. | |
cd07c39b | 537 | glauber->SetCentralityClass(0.,0.1); |
538 | fPythia->SetPARJ(200, 1.); | |
539 | fPythia->SetPARJ(198, fQhat); | |
540 | fPythia->SetPARJ(199, fLength); | |
cd07c39b | 541 | fPythia->SetMSTJ(42, 2); // angular ordering |
542 | fPythia->SetMSTJ(44, 2); // option to run alpha_s | |
cd07c39b | 543 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers |
b976f7d8 | 544 | } |
8d2cd130 | 545 | } |
546 | ||
547 | void AliGenPythia::Generate() | |
548 | { | |
549 | // Generate one event | |
19ef8cf0 | 550 | if (!fPythia) fPythia=(AliPythia*) fMCEvGen; |
8d2cd130 | 551 | fDecayer->ForceDecay(); |
552 | ||
553 | Float_t polar[3] = {0,0,0}; | |
554 | Float_t origin[3] = {0,0,0}; | |
a920faf9 | 555 | Float_t p[4]; |
8d2cd130 | 556 | // converts from mm/c to s |
557 | const Float_t kconv=0.001/2.999792458e8; | |
558 | // | |
559 | Int_t nt=0; | |
560 | Int_t jev=0; | |
561 | Int_t j, kf; | |
562 | fTrials=0; | |
f913ec4f | 563 | fEventTime = 0.; |
564 | ||
2590ccf9 | 565 | |
8d2cd130 | 566 | |
567 | // Set collision vertex position | |
2590ccf9 | 568 | if (fVertexSmear == kPerEvent) Vertex(); |
569 | ||
8d2cd130 | 570 | // event loop |
571 | while(1) | |
572 | { | |
32d6ef7d | 573 | // |
5fa4b20b | 574 | // Produce event |
32d6ef7d | 575 | // |
32d6ef7d | 576 | // |
5fa4b20b | 577 | // Switch hadronisation off |
578 | // | |
579 | fPythia->SetMSTJ(1, 0); | |
cd07c39b | 580 | |
581 | if (fQuench ==4){ | |
582 | Double_t bimp; | |
583 | // Quenching comes through medium-modified splitting functions. | |
584 | AliFastGlauber::Instance()->GetRandomBHard(bimp); | |
e6fe9b82 | 585 | fPythia->SetPARJ(197, bimp); |
586 | fImpact = bimp; | |
cd07c39b | 587 | } |
32d6ef7d | 588 | // |
5fa4b20b | 589 | // Either produce new event or read partons from file |
590 | // | |
591 | if (!fReadFromFile) { | |
beac474c | 592 | if (!fNewMIS) { |
593 | fPythia->Pyevnt(); | |
594 | } else { | |
595 | fPythia->Pyevnw(); | |
596 | } | |
5fa4b20b | 597 | fNpartons = fPythia->GetN(); |
598 | } else { | |
33c3c91a | 599 | printf("Loading Event %d\n",AliRunLoader::Instance()->GetEventNumber()); |
600 | fRL->GetEvent(AliRunLoader::Instance()->GetEventNumber()); | |
5fa4b20b | 601 | fPythia->SetN(0); |
602 | LoadEvent(fRL->Stack(), 0 , 1); | |
603 | fPythia->Pyedit(21); | |
604 | } | |
605 | ||
32d6ef7d | 606 | // |
607 | // Run quenching routine | |
608 | // | |
5fa4b20b | 609 | if (fQuench == 1) { |
610 | fPythia->Quench(); | |
611 | } else if (fQuench == 2){ | |
612 | fPythia->Pyquen(208., 0, 0.); | |
b976f7d8 | 613 | } else if (fQuench == 3) { |
614 | // Quenching is via multiplicative correction of the splittings | |
5fa4b20b | 615 | } |
b976f7d8 | 616 | |
32d6ef7d | 617 | // |
5fa4b20b | 618 | // Switch hadronisation on |
32d6ef7d | 619 | // |
20e47f08 | 620 | if (fHadronisation) { |
621 | fPythia->SetMSTJ(1, 1); | |
5fa4b20b | 622 | // |
623 | // .. and perform hadronisation | |
aea21c57 | 624 | // printf("Calling hadronisation %d\n", fPythia->GetN()); |
20e47f08 | 625 | fPythia->Pyexec(); |
626 | } | |
8d2cd130 | 627 | fTrials++; |
8507138f | 628 | fPythia->ImportParticles(&fParticles,"All"); |
df275cfa | 629 | if (TMath::Abs(fDyBoost) > 1.e-4) Boost(); |
8d2cd130 | 630 | // |
631 | // | |
632 | // | |
633 | Int_t i; | |
634 | ||
dbd64db6 | 635 | fNprimaries = 0; |
8507138f | 636 | Int_t np = fParticles.GetEntriesFast(); |
5fa4b20b | 637 | |
7c21f297 | 638 | if (np == 0) continue; |
8d2cd130 | 639 | // |
2590ccf9 | 640 | |
8d2cd130 | 641 | // |
642 | Int_t* pParent = new Int_t[np]; | |
643 | Int_t* pSelected = new Int_t[np]; | |
644 | Int_t* trackIt = new Int_t[np]; | |
5fa4b20b | 645 | for (i = 0; i < np; i++) { |
8d2cd130 | 646 | pParent[i] = -1; |
647 | pSelected[i] = 0; | |
648 | trackIt[i] = 0; | |
649 | } | |
650 | ||
651 | Int_t nc = 0; // Total n. of selected particles | |
652 | Int_t nParents = 0; // Selected parents | |
653 | Int_t nTkbles = 0; // Trackable particles | |
f529e69b | 654 | if (fProcess != kPyMbDefault && |
655 | fProcess != kPyMb && | |
6d2ec66d | 656 | fProcess != kPyMbAtlasTuneMC09 && |
04081a91 | 657 | fProcess != kPyMbWithDirectPhoton && |
f529e69b | 658 | fProcess != kPyJets && |
8d2cd130 | 659 | fProcess != kPyDirectGamma && |
589380c6 | 660 | fProcess != kPyMbNonDiffr && |
d7de4a67 | 661 | fProcess != kPyMbMSEL1 && |
f529e69b | 662 | fProcess != kPyW && |
663 | fProcess != kPyZ && | |
664 | fProcess != kPyCharmppMNRwmi && | |
9dfe63b3 | 665 | fProcess != kPyBeautyppMNRwmi && |
666 | fProcess != kPyBeautyJets) { | |
8d2cd130 | 667 | |
5fa4b20b | 668 | for (i = 0; i < np; i++) { |
8507138f | 669 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 | 670 | Int_t ks = iparticle->GetStatusCode(); |
671 | kf = CheckPDGCode(iparticle->GetPdgCode()); | |
672 | // No initial state partons | |
673 | if (ks==21) continue; | |
674 | // | |
675 | // Heavy Flavor Selection | |
676 | // | |
677 | // quark ? | |
678 | kf = TMath::Abs(kf); | |
679 | Int_t kfl = kf; | |
9ff6c04c | 680 | // Resonance |
f913ec4f | 681 | |
9ff6c04c | 682 | if (kfl > 100000) kfl %= 100000; |
183a5ca9 | 683 | if (kfl > 10000) kfl %= 10000; |
8d2cd130 | 684 | // meson ? |
685 | if (kfl > 10) kfl/=100; | |
686 | // baryon | |
687 | if (kfl > 10) kfl/=10; | |
8d2cd130 | 688 | Int_t ipa = iparticle->GetFirstMother()-1; |
689 | Int_t kfMo = 0; | |
f913ec4f | 690 | // |
691 | // Establish mother daughter relation between heavy quarks and mesons | |
692 | // | |
693 | if (kf >= fFlavorSelect && kf <= 6) { | |
694 | Int_t idau = iparticle->GetFirstDaughter() - 1; | |
695 | if (idau > -1) { | |
8507138f | 696 | TParticle* daughter = (TParticle *) fParticles.At(idau); |
f913ec4f | 697 | Int_t pdgD = daughter->GetPdgCode(); |
698 | if (pdgD == 91 || pdgD == 92) { | |
699 | Int_t jmin = daughter->GetFirstDaughter() - 1; | |
700 | Int_t jmax = daughter->GetLastDaughter() - 1; | |
2ab330c9 | 701 | for (Int_t jp = jmin; jp <= jmax; jp++) |
702 | ((TParticle *) fParticles.At(jp))->SetFirstMother(i+1); | |
f913ec4f | 703 | } // is string or cluster |
704 | } // has daughter | |
705 | } // heavy quark | |
8d2cd130 | 706 | |
f913ec4f | 707 | |
8d2cd130 | 708 | if (ipa > -1) { |
8507138f | 709 | TParticle * mother = (TParticle *) fParticles.At(ipa); |
8d2cd130 | 710 | kfMo = TMath::Abs(mother->GetPdgCode()); |
711 | } | |
f913ec4f | 712 | |
8d2cd130 | 713 | // What to keep in Stack? |
714 | Bool_t flavorOK = kFALSE; | |
715 | Bool_t selectOK = kFALSE; | |
716 | if (fFeedDownOpt) { | |
32d6ef7d | 717 | if (kfl >= fFlavorSelect) flavorOK = kTRUE; |
8d2cd130 | 718 | } else { |
32d6ef7d | 719 | if (kfl > fFlavorSelect) { |
720 | nc = -1; | |
721 | break; | |
722 | } | |
723 | if (kfl == fFlavorSelect) flavorOK = kTRUE; | |
8d2cd130 | 724 | } |
725 | switch (fStackFillOpt) { | |
726 | case kFlavorSelection: | |
32d6ef7d | 727 | selectOK = kTRUE; |
728 | break; | |
8d2cd130 | 729 | case kParentSelection: |
32d6ef7d | 730 | if (ParentSelected(kf) || kf <= 10) selectOK = kTRUE; |
731 | break; | |
8d2cd130 | 732 | } |
733 | if (flavorOK && selectOK) { | |
734 | // | |
735 | // Heavy flavor hadron or quark | |
736 | // | |
737 | // Kinematic seletion on final state heavy flavor mesons | |
738 | if (ParentSelected(kf) && !KinematicSelection(iparticle, 0)) | |
739 | { | |
9ff6c04c | 740 | continue; |
8d2cd130 | 741 | } |
742 | pSelected[i] = 1; | |
743 | if (ParentSelected(kf)) ++nParents; // Update parent count | |
744 | // printf("\n particle (HF) %d %d %d", i, pSelected[i], kf); | |
745 | } else { | |
746 | // Kinematic seletion on decay products | |
747 | if (fCutOnChild && ParentSelected(kfMo) && ChildSelected(kf) | |
9ff6c04c | 748 | && !KinematicSelection(iparticle, 1)) |
8d2cd130 | 749 | { |
9ff6c04c | 750 | continue; |
8d2cd130 | 751 | } |
752 | // | |
753 | // Decay products | |
754 | // Select if mother was selected and is not tracked | |
755 | ||
756 | if (pSelected[ipa] && | |
757 | !trackIt[ipa] && // mother will be tracked ? | |
758 | kfMo != 5 && // mother is b-quark, don't store fragments | |
759 | kfMo != 4 && // mother is c-quark, don't store fragments | |
760 | kf != 92) // don't store string | |
761 | { | |
762 | // | |
763 | // Semi-stable or de-selected: diselect decay products: | |
764 | // | |
765 | // | |
766 | if (pSelected[i] == -1 || fDecayer->GetLifetime(kf) > fMaxLifeTime) | |
767 | { | |
768 | Int_t ipF = iparticle->GetFirstDaughter(); | |
769 | Int_t ipL = iparticle->GetLastDaughter(); | |
770 | if (ipF > 0) for (j = ipF-1; j < ipL; j++) pSelected[j] = -1; | |
771 | } | |
772 | // printf("\n particle (decay) %d %d %d", i, pSelected[i], kf); | |
773 | pSelected[i] = (pSelected[i] == -1) ? 0 : 1; | |
774 | } | |
775 | } | |
776 | if (pSelected[i] == -1) pSelected[i] = 0; | |
777 | if (!pSelected[i]) continue; | |
778 | // Count quarks only if you did not include fragmentation | |
779 | if (fFragmentation && kf <= 10) continue; | |
9ff6c04c | 780 | |
8d2cd130 | 781 | nc++; |
782 | // Decision on tracking | |
783 | trackIt[i] = 0; | |
784 | // | |
785 | // Track final state particle | |
786 | if (ks == 1) trackIt[i] = 1; | |
787 | // Track semi-stable particles | |
d25cfd65 | 788 | if ((ks == 1) || (fDecayer->GetLifetime(kf) > fMaxLifeTime)) trackIt[i] = 1; |
8d2cd130 | 789 | // Track particles selected by process if undecayed. |
790 | if (fForceDecay == kNoDecay) { | |
791 | if (ParentSelected(kf)) trackIt[i] = 1; | |
792 | } else { | |
793 | if (ParentSelected(kf)) trackIt[i] = 0; | |
794 | } | |
795 | if (trackIt[i] == 1) ++nTkbles; // Update trackable counter | |
796 | // | |
797 | // | |
798 | ||
799 | } // particle selection loop | |
800 | if (nc > 0) { | |
801 | for (i = 0; i<np; i++) { | |
802 | if (!pSelected[i]) continue; | |
8507138f | 803 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 | 804 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
805 | Int_t ks = iparticle->GetStatusCode(); | |
806 | p[0] = iparticle->Px(); | |
807 | p[1] = iparticle->Py(); | |
808 | p[2] = iparticle->Pz(); | |
a920faf9 | 809 | p[3] = iparticle->Energy(); |
810 | ||
2590ccf9 | 811 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
812 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] | |
813 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] | |
814 | ||
8d2cd130 | 815 | Float_t tof = kconv*iparticle->T(); |
816 | Int_t ipa = iparticle->GetFirstMother()-1; | |
817 | Int_t iparent = (ipa > -1) ? pParent[ipa] : -1; | |
a920faf9 | 818 | |
819 | PushTrack(fTrackIt*trackIt[i], iparent, kf, | |
820 | p[0], p[1], p[2], p[3], | |
821 | origin[0], origin[1], origin[2], tof, | |
822 | polar[0], polar[1], polar[2], | |
823 | kPPrimary, nt, 1., ks); | |
8d2cd130 | 824 | pParent[i] = nt; |
dbd64db6 | 825 | KeepTrack(nt); |
826 | fNprimaries++; | |
642f15cf | 827 | } // PushTrack loop |
8d2cd130 | 828 | } |
829 | } else { | |
830 | nc = GenerateMB(); | |
831 | } // mb ? | |
f913ec4f | 832 | |
833 | GetSubEventTime(); | |
8d2cd130 | 834 | |
234f6d32 | 835 | delete[] pParent; |
836 | delete[] pSelected; | |
837 | delete[] trackIt; | |
8d2cd130 | 838 | |
839 | if (nc > 0) { | |
840 | switch (fCountMode) { | |
841 | case kCountAll: | |
842 | // printf(" Count all \n"); | |
843 | jev += nc; | |
844 | break; | |
845 | case kCountParents: | |
846 | // printf(" Count parents \n"); | |
847 | jev += nParents; | |
848 | break; | |
849 | case kCountTrackables: | |
850 | // printf(" Count trackable \n"); | |
851 | jev += nTkbles; | |
852 | break; | |
853 | } | |
854 | if (jev >= fNpart || fNpart == -1) { | |
855 | fKineBias=Float_t(fNpart)/Float_t(fTrials); | |
e0e89f40 | 856 | |
8d2cd130 | 857 | fQ += fPythia->GetVINT(51); |
858 | fX1 += fPythia->GetVINT(41); | |
859 | fX2 += fPythia->GetVINT(42); | |
860 | fTrialsRun += fTrials; | |
861 | fNev++; | |
862 | MakeHeader(); | |
863 | break; | |
864 | } | |
865 | } | |
866 | } // event loop | |
867 | SetHighWaterMark(nt); | |
868 | // adjust weight due to kinematic selection | |
b88f5cea | 869 | // AdjustWeights(); |
8d2cd130 | 870 | // get cross-section |
871 | fXsection=fPythia->GetPARI(1); | |
872 | } | |
873 | ||
874 | Int_t AliGenPythia::GenerateMB() | |
875 | { | |
876 | // | |
877 | // Min Bias selection and other global selections | |
878 | // | |
879 | Int_t i, kf, nt, iparent; | |
880 | Int_t nc = 0; | |
bf950da8 | 881 | Float_t p[4]; |
8d2cd130 | 882 | Float_t polar[3] = {0,0,0}; |
883 | Float_t origin[3] = {0,0,0}; | |
884 | // converts from mm/c to s | |
885 | const Float_t kconv=0.001/2.999792458e8; | |
886 | ||
e0e89f40 | 887 | |
888 | ||
8507138f | 889 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
aea21c57 | 890 | |
5fa4b20b | 891 | |
e0e89f40 | 892 | |
8d2cd130 | 893 | Int_t* pParent = new Int_t[np]; |
894 | for (i=0; i< np; i++) pParent[i] = -1; | |
2f405d65 | 895 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) { |
8507138f | 896 | TParticle* jet1 = (TParticle *) fParticles.At(6); |
897 | TParticle* jet2 = (TParticle *) fParticles.At(7); | |
234f6d32 | 898 | if (!CheckTrigger(jet1, jet2)) { |
899 | delete [] pParent; | |
900 | return 0; | |
901 | } | |
8d2cd130 | 902 | } |
e0e89f40 | 903 | |
9fd8e520 | 904 | // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL |
905 | if (fProcess == kPyJets && (fFragPhotonInCalo || fPi0InCalo) ) { | |
ec2c406e | 906 | |
907 | Bool_t ok = kFALSE; | |
908 | ||
909 | Int_t pdg = 0; | |
9fd8e520 | 910 | if (fFragPhotonInCalo) pdg = 22 ; // Photon |
6d2ec66d | 911 | else if (fPi0InCalo) pdg = 111 ; // Pi0 |
ec2c406e | 912 | |
913 | for (i=0; i< np; i++) { | |
8507138f | 914 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
ec2c406e | 915 | if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && |
9fd8e520 | 916 | iparticle->Pt() > fFragPhotonOrPi0MinPt){ |
562cbbcf | 917 | Int_t imother = iparticle->GetFirstMother() - 1; |
8507138f | 918 | TParticle* pmother = (TParticle *) fParticles.At(imother); |
9fd8e520 | 919 | if(pdg == 111 || |
82e0bdff | 920 | (pdg == 22 && pmother->GetStatusCode() != 11)) //No photon from hadron decay |
9fd8e520 | 921 | { |
922 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees | |
82e0bdff | 923 | Float_t eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax |
9fd8e520 | 924 | if((fCheckEMCAL && IsInEMCAL(phi,eta)) || |
925 | (fCheckPHOS && IsInPHOS(phi,eta)) ) | |
926 | ok =kTRUE; | |
927 | } | |
ec2c406e | 928 | } |
929 | } | |
930 | if(!ok) | |
931 | return 0; | |
932 | } | |
9dfe63b3 | 933 | |
934 | // Select beauty jets with electron in EMCAL | |
935 | if (fProcess == kPyBeautyJets && fEleInEMCAL) { | |
936 | ||
937 | Bool_t ok = kFALSE; | |
938 | ||
939 | Int_t pdg = 11; //electron | |
940 | ||
70574ff8 | 941 | Float_t pt = 0.; |
942 | Float_t eta = 0.; | |
943 | Float_t phi = 0.; | |
9dfe63b3 | 944 | for (i=0; i< np; i++) { |
945 | TParticle* iparticle = (TParticle *) fParticles.At(i); | |
946 | if(iparticle->GetStatusCode()==1 && TMath::Abs(iparticle->GetPdgCode())==pdg && | |
947 | iparticle->Pt() > fElectronMinPt){ | |
948 | pt = iparticle->Pt(); | |
949 | phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees | |
950 | eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax | |
951 | if(IsInEMCAL(phi,eta)) | |
952 | ok =kTRUE; | |
953 | } | |
954 | } | |
955 | if(!ok) | |
956 | return 0; | |
957 | AliDebug(5,Form("Found an electron jet (pt,eta,phi) = (%f,%f,%f)",pt,eta,phi)); | |
958 | } | |
700b9416 | 959 | // Check for minimum multiplicity |
960 | if (fTriggerMultiplicity > 0) { | |
961 | Int_t multiplicity = 0; | |
962 | for (i = 0; i < np; i++) { | |
8507138f | 963 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
700b9416 | 964 | |
965 | Int_t statusCode = iparticle->GetStatusCode(); | |
966 | ||
967 | // Initial state particle | |
e296848e | 968 | if (statusCode != 1) |
700b9416 | 969 | continue; |
38112f3f | 970 | // eta cut |
700b9416 | 971 | if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta) |
972 | continue; | |
38112f3f | 973 | // pt cut |
974 | if (iparticle->Pt() < fTriggerMultiplicityPtMin) | |
975 | continue; | |
976 | ||
700b9416 | 977 | TParticlePDG* pdgPart = iparticle->GetPDG(); |
978 | if (pdgPart && pdgPart->Charge() == 0) | |
979 | continue; | |
980 | ||
981 | ++multiplicity; | |
982 | } | |
983 | ||
984 | if (multiplicity < fTriggerMultiplicity) { | |
985 | delete [] pParent; | |
986 | return 0; | |
987 | } | |
38112f3f | 988 | Printf("Triggered on event with multiplicity of %d >= %d", multiplicity, fTriggerMultiplicity); |
700b9416 | 989 | } |
90a236ce | 990 | |
991 | // Select events with a photon pt > min pt going to PHOS eta acceptance or exactly PHOS eta phi | |
992 | if ((fProcess == kPyJets || fProcess == kPyDirectGamma) && fPhotonInCalo && (fCheckPHOSeta || fCheckPHOS)){ | |
993 | ||
994 | Bool_t okd = kFALSE; | |
995 | ||
996 | Int_t pdg = 22; | |
997 | Int_t iphcand = -1; | |
998 | for (i=0; i< np; i++) { | |
8507138f | 999 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce | 1000 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
1001 | Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax | |
1002 | ||
1003 | if(iparticle->GetStatusCode() == 1 | |
1004 | && iparticle->GetPdgCode() == pdg | |
1005 | && iparticle->Pt() > fPhotonMinPt | |
04a26b0a | 1006 | && eta < fPHOSEta){ |
90a236ce | 1007 | |
1008 | // first check if the photon is in PHOS phi | |
1009 | if(IsInPHOS(phi,eta)){ | |
1010 | okd = kTRUE; | |
1011 | break; | |
1012 | } | |
1013 | if(fCheckPHOSeta) iphcand = i; // candiate photon to rotate in phi | |
1014 | ||
1015 | } | |
1016 | } | |
1017 | ||
1018 | if(!okd && iphcand != -1) // execute rotation in phi | |
1019 | RotatePhi(iphcand,okd); | |
1020 | ||
1021 | if(!okd) | |
1022 | return 0; | |
1023 | } | |
1024 | ||
7ce1321b | 1025 | if (fTriggerParticle) { |
1026 | Bool_t triggered = kFALSE; | |
1027 | for (i = 0; i < np; i++) { | |
8507138f | 1028 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
7ce1321b | 1029 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
38db0ee6 | 1030 | if (kf != fTriggerParticle) continue; |
7ce1321b | 1031 | if (iparticle->Pt() == 0.) continue; |
1032 | if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue; | |
1033 | triggered = kTRUE; | |
1034 | break; | |
1035 | } | |
234f6d32 | 1036 | if (!triggered) { |
1037 | delete [] pParent; | |
1038 | return 0; | |
1039 | } | |
7ce1321b | 1040 | } |
e0e89f40 | 1041 | |
1042 | ||
1043 | // Check if there is a ccbar or bbbar pair with at least one of the two | |
1044 | // in fYMin < y < fYMax | |
2f405d65 | 1045 | |
9dfe63b3 | 1046 | if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi || fProcess == kPyBeautyJets) { |
9ccc3d0e | 1047 | TParticle *partCheck; |
1048 | TParticle *mother; | |
e0e89f40 | 1049 | Bool_t theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE; |
9ccc3d0e | 1050 | Bool_t theChild=kFALSE; |
1051 | Float_t y; | |
1052 | Int_t pdg,mpdg,mpdgUpperFamily; | |
e0e89f40 | 1053 | for(i=0; i<np; i++) { |
9ccc3d0e | 1054 | partCheck = (TParticle*)fParticles.At(i); |
1055 | pdg = partCheck->GetPdgCode(); | |
1056 | if(TMath::Abs(pdg) == fFlavorSelect) { // quark | |
1057 | if(pdg>0) { theQ=kTRUE; } else { theQbar=kTRUE; } | |
1058 | y = 0.5*TMath::Log((partCheck->Energy()+partCheck->Pz()+1.e-13)/ | |
1059 | (partCheck->Energy()-partCheck->Pz()+1.e-13)); | |
1060 | if(y>fYMin && y<fYMax) inYcut=kTRUE; | |
1061 | } | |
1062 | if(fCutOnChild && TMath::Abs(pdg) == fPdgCodeParticleforAcceptanceCut) { | |
1063 | Int_t mi = partCheck->GetFirstMother() - 1; | |
1064 | if(mi<0) continue; | |
1065 | mother = (TParticle*)fParticles.At(mi); | |
1066 | mpdg=TMath::Abs(mother->GetPdgCode()); | |
75fde694 | 1067 | mpdgUpperFamily=(mpdg>1000 ? mpdg+1000 : mpdg+100); // keep e from c from b |
9ccc3d0e | 1068 | if ( ParentSelected(mpdg) || |
1069 | (fFlavorSelect==5 && ParentSelected(mpdgUpperFamily))) { | |
1070 | if (KinematicSelection(partCheck,1)) { | |
1071 | theChild=kTRUE; | |
1072 | } | |
1073 | } | |
1074 | } | |
e0e89f40 | 1075 | } |
9ccc3d0e | 1076 | if (!theQ || !theQbar || !inYcut) { // one of the c/b conditions not satisfied |
234f6d32 | 1077 | delete[] pParent; |
e0e89f40 | 1078 | return 0; |
1079 | } | |
9ccc3d0e | 1080 | if (fCutOnChild && !theChild) { // one of the child conditions not satisfied |
1081 | delete[] pParent; | |
1082 | return 0; | |
1083 | } | |
1084 | ||
e0e89f40 | 1085 | } |
aea21c57 | 1086 | |
0f6ee828 | 1087 | //Introducing child cuts in case kPyW, kPyZ, kPyMb, and kPyMbNonDiff |
f529e69b | 1088 | if ( (fProcess == kPyW || |
1089 | fProcess == kPyZ || | |
1090 | fProcess == kPyMbDefault || | |
1091 | fProcess == kPyMb || | |
6d2ec66d | 1092 | fProcess == kPyMbAtlasTuneMC09 || |
04081a91 | 1093 | fProcess == kPyMbWithDirectPhoton || |
f529e69b | 1094 | fProcess == kPyMbNonDiffr) |
0f6ee828 | 1095 | && (fCutOnChild == 1) ) { |
1096 | if ( !CheckKinematicsOnChild() ) { | |
234f6d32 | 1097 | delete[] pParent; |
0f6ee828 | 1098 | return 0; |
1099 | } | |
aea21c57 | 1100 | } |
1101 | ||
1102 | ||
f913ec4f | 1103 | for (i = 0; i < np; i++) { |
8d2cd130 | 1104 | Int_t trackIt = 0; |
8507138f | 1105 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 | 1106 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
1107 | Int_t ks = iparticle->GetStatusCode(); | |
1108 | Int_t km = iparticle->GetFirstMother(); | |
1109 | if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) || | |
1110 | (ks != 1) || | |
9dfe63b3 | 1111 | ((fProcess == kPyJets || fProcess == kPyBeautyJets) && ks == 21 && km == 0 && i>1)) { |
8d2cd130 | 1112 | nc++; |
1113 | if (ks == 1) trackIt = 1; | |
1114 | Int_t ipa = iparticle->GetFirstMother()-1; | |
1115 | ||
1116 | iparent = (ipa > -1) ? pParent[ipa] : -1; | |
1117 | ||
1118 | // | |
1119 | // store track information | |
1120 | p[0] = iparticle->Px(); | |
1121 | p[1] = iparticle->Py(); | |
1122 | p[2] = iparticle->Pz(); | |
a920faf9 | 1123 | p[3] = iparticle->Energy(); |
1406f599 | 1124 | |
a920faf9 | 1125 | |
2590ccf9 | 1126 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
1127 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] | |
1128 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] | |
1129 | ||
f913ec4f | 1130 | Float_t tof = fEventTime + kconv * iparticle->T(); |
a920faf9 | 1131 | |
1132 | PushTrack(fTrackIt*trackIt, iparent, kf, | |
1133 | p[0], p[1], p[2], p[3], | |
1134 | origin[0], origin[1], origin[2], tof, | |
1135 | polar[0], polar[1], polar[2], | |
1136 | kPPrimary, nt, 1., ks); | |
dbd64db6 | 1137 | fNprimaries++; |
8d2cd130 | 1138 | KeepTrack(nt); |
1139 | pParent[i] = nt; | |
f913ec4f | 1140 | SetHighWaterMark(nt); |
1141 | ||
8d2cd130 | 1142 | } // select particle |
1143 | } // particle loop | |
1144 | ||
234f6d32 | 1145 | delete[] pParent; |
e0e89f40 | 1146 | |
f913ec4f | 1147 | return 1; |
8d2cd130 | 1148 | } |
1149 | ||
1150 | ||
1151 | void AliGenPythia::FinishRun() | |
1152 | { | |
1153 | // Print x-section summary | |
1154 | fPythia->Pystat(1); | |
2779fc64 | 1155 | |
1156 | if (fNev > 0.) { | |
1157 | fQ /= fNev; | |
1158 | fX1 /= fNev; | |
1159 | fX2 /= fNev; | |
1160 | } | |
1161 | ||
8d2cd130 | 1162 | printf("\nTotal number of Pyevnt() calls %d\n", fTrialsRun); |
1163 | printf("\nMean Q, x1, x2: %f %f %f\n", fQ, fX1, fX2); | |
8d2cd130 | 1164 | } |
1165 | ||
7184e472 | 1166 | void AliGenPythia::AdjustWeights() const |
8d2cd130 | 1167 | { |
1168 | // Adjust the weights after generation of all events | |
1169 | // | |
e2bddf81 | 1170 | if (gAlice) { |
1171 | TParticle *part; | |
1172 | Int_t ntrack=gAlice->GetMCApp()->GetNtrack(); | |
1173 | for (Int_t i=0; i<ntrack; i++) { | |
1174 | part= gAlice->GetMCApp()->Particle(i); | |
1175 | part->SetWeight(part->GetWeight()*fKineBias); | |
1176 | } | |
8d2cd130 | 1177 | } |
1178 | } | |
1179 | ||
20e47f08 | 1180 | void AliGenPythia::SetNuclei(Int_t a1, Int_t a2, Int_t pdfset) |
8d2cd130 | 1181 | { |
1182 | // Treat protons as inside nuclei with mass numbers a1 and a2 | |
1d568bc2 | 1183 | |
1a626d4e | 1184 | fAProjectile = a1; |
1185 | fATarget = a2; | |
20e47f08 | 1186 | fNucPdf = pdfset; // 0 EKS98 1 EPS08 |
1d568bc2 | 1187 | fSetNuclei = kTRUE; |
8d2cd130 | 1188 | } |
1189 | ||
1190 | ||
1191 | void AliGenPythia::MakeHeader() | |
1192 | { | |
7184e472 | 1193 | // |
1194 | // Make header for the simulated event | |
1195 | // | |
183a5ca9 | 1196 | if (gAlice) { |
1197 | if (gAlice->GetEvNumber()>=fDebugEventFirst && | |
f913ec4f | 1198 | gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(2); |
183a5ca9 | 1199 | } |
1200 | ||
8d2cd130 | 1201 | // Builds the event header, to be called after each event |
e5c87a3d | 1202 | if (fHeader) delete fHeader; |
1203 | fHeader = new AliGenPythiaEventHeader("Pythia"); | |
8d2cd130 | 1204 | // |
1205 | // Event type | |
e5c87a3d | 1206 | ((AliGenPythiaEventHeader*) fHeader)->SetProcessType(fPythia->GetMSTI(1)); |
8d2cd130 | 1207 | // |
1208 | // Number of trials | |
e5c87a3d | 1209 | ((AliGenPythiaEventHeader*) fHeader)->SetTrials(fTrials); |
8d2cd130 | 1210 | // |
1211 | // Event Vertex | |
d25cfd65 | 1212 | fHeader->SetPrimaryVertex(fVertex); |
dbd64db6 | 1213 | |
1214 | // | |
1215 | // Number of primaries | |
1216 | fHeader->SetNProduced(fNprimaries); | |
8d2cd130 | 1217 | // |
1218 | // Jets that have triggered | |
f913ec4f | 1219 | |
9dfe63b3 | 1220 | //Need to store jets for b-jet studies too! |
2f405d65 | 1221 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) |
8d2cd130 | 1222 | { |
1223 | Int_t ntrig, njet; | |
1224 | Float_t jets[4][10]; | |
1225 | GetJets(njet, ntrig, jets); | |
9ff6c04c | 1226 | |
8d2cd130 | 1227 | |
1228 | for (Int_t i = 0; i < ntrig; i++) { | |
e5c87a3d | 1229 | ((AliGenPythiaEventHeader*) fHeader)->AddJet(jets[0][i], jets[1][i], jets[2][i], |
8d2cd130 | 1230 | jets[3][i]); |
1231 | } | |
1232 | } | |
5fa4b20b | 1233 | // |
1234 | // Copy relevant information from external header, if present. | |
1235 | // | |
1236 | Float_t uqJet[4]; | |
1237 | ||
1238 | if (fRL) { | |
1239 | AliGenPythiaEventHeader* exHeader = (AliGenPythiaEventHeader*) (fRL->GetHeader()->GenEventHeader()); | |
1240 | for (Int_t i = 0; i < exHeader->NTriggerJets(); i++) | |
1241 | { | |
1242 | printf("Adding Jet %d %d \n", i, exHeader->NTriggerJets()); | |
1243 | ||
1244 | ||
1245 | exHeader->TriggerJet(i, uqJet); | |
1246 | ((AliGenPythiaEventHeader*) fHeader)->AddUQJet(uqJet[0], uqJet[1], uqJet[2], uqJet[3]); | |
1247 | } | |
1248 | } | |
1249 | // | |
1250 | // Store quenching parameters | |
1251 | // | |
1252 | if (fQuench){ | |
1253 | Double_t z[4]; | |
1254 | Double_t xp, yp; | |
7c21f297 | 1255 | if (fQuench == 1) { |
1256 | // Pythia::Quench() | |
1257 | fPythia->GetQuenchingParameters(xp, yp, z); | |
1bab4b79 | 1258 | } else if (fQuench == 2){ |
7c21f297 | 1259 | // Pyquen |
1260 | Double_t r1 = PARIMP.rb1; | |
1261 | Double_t r2 = PARIMP.rb2; | |
1262 | Double_t b = PARIMP.b1; | |
1263 | Double_t r = 0.5 * TMath::Sqrt(2. * (r1 * r1 + r2 * r2) - b * b); | |
1264 | Double_t phi = PARIMP.psib1; | |
1265 | xp = r * TMath::Cos(phi); | |
1266 | yp = r * TMath::Sin(phi); | |
1267 | ||
1bab4b79 | 1268 | } else if (fQuench == 4) { |
1269 | // QPythia | |
5831e75f | 1270 | Double_t xy[2]; |
e9719084 | 1271 | Double_t i0i1[2]; |
1272 | AliFastGlauber::Instance()->GetSavedXY(xy); | |
1273 | AliFastGlauber::Instance()->GetSavedI0I1(i0i1); | |
5831e75f | 1274 | xp = xy[0]; |
1275 | yp = xy[1]; | |
e6fe9b82 | 1276 | ((AliGenPythiaEventHeader*) fHeader)->SetImpactParameter(fImpact); |
7c21f297 | 1277 | } |
1bab4b79 | 1278 | |
7c21f297 | 1279 | ((AliGenPythiaEventHeader*) fHeader)->SetXYJet(xp, yp); |
1280 | ((AliGenPythiaEventHeader*) fHeader)->SetZQuench(z); | |
1bab4b79 | 1281 | } |
beac474c | 1282 | // |
1283 | // Store pt^hard | |
1284 | ((AliGenPythiaEventHeader*) fHeader)->SetPtHard(fPythia->GetVINT(47)); | |
5fa4b20b | 1285 | // |
cf57b268 | 1286 | // Pass header |
5fa4b20b | 1287 | // |
cf57b268 | 1288 | AddHeader(fHeader); |
4c4eac97 | 1289 | fHeader = 0x0; |
8d2cd130 | 1290 | } |
cf57b268 | 1291 | |
8d2cd130 | 1292 | Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2) |
1293 | { | |
1294 | // Check the kinematic trigger condition | |
1295 | // | |
1296 | Double_t eta[2]; | |
1297 | eta[0] = jet1->Eta(); | |
1298 | eta[1] = jet2->Eta(); | |
1299 | Double_t phi[2]; | |
1300 | phi[0] = jet1->Phi(); | |
1301 | phi[1] = jet2->Phi(); | |
1302 | Int_t pdg[2]; | |
1303 | pdg[0] = jet1->GetPdgCode(); | |
1304 | pdg[1] = jet2->GetPdgCode(); | |
1305 | Bool_t triggered = kFALSE; | |
1306 | ||
2f405d65 | 1307 | if (fProcess == kPyJets || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) { |
8d2cd130 | 1308 | Int_t njets = 0; |
1309 | Int_t ntrig = 0; | |
1310 | Float_t jets[4][10]; | |
1311 | // | |
1312 | // Use Pythia clustering on parton level to determine jet axis | |
1313 | // | |
1314 | GetJets(njets, ntrig, jets); | |
1315 | ||
76d6ba9a | 1316 | if (ntrig || fEtMinJet == 0.) triggered = kTRUE; |
8d2cd130 | 1317 | // |
1318 | } else { | |
1319 | Int_t ij = 0; | |
1320 | Int_t ig = 1; | |
1321 | if (pdg[0] == kGamma) { | |
1322 | ij = 1; | |
1323 | ig = 0; | |
1324 | } | |
1325 | //Check eta range first... | |
1326 | if ((eta[ij] < fEtaMaxJet && eta[ij] > fEtaMinJet) && | |
1327 | (eta[ig] < fEtaMaxGamma && eta[ig] > fEtaMinGamma)) | |
1328 | { | |
1329 | //Eta is okay, now check phi range | |
1330 | if ((phi[ij] < fPhiMaxJet && phi[ij] > fPhiMinJet) && | |
1331 | (phi[ig] < fPhiMaxGamma && phi[ig] > fPhiMinGamma)) | |
1332 | { | |
1333 | triggered = kTRUE; | |
1334 | } | |
1335 | } | |
1336 | } | |
1337 | return triggered; | |
1338 | } | |
aea21c57 | 1339 | |
1340 | ||
aea21c57 | 1341 | |
7184e472 | 1342 | Bool_t AliGenPythia::CheckKinematicsOnChild(){ |
1343 | // | |
1344 | //Checking Kinematics on Child (status code 1, particle code ?, kin cuts | |
1345 | // | |
aea21c57 | 1346 | Bool_t checking = kFALSE; |
1347 | Int_t j, kcode, ks, km; | |
1348 | Int_t nPartAcc = 0; //number of particles in the acceptance range | |
1349 | Int_t numberOfAcceptedParticles = 1; | |
1350 | if (fNumberOfAcceptedParticles != 0) { numberOfAcceptedParticles = fNumberOfAcceptedParticles; } | |
8507138f | 1351 | Int_t npart = fParticles.GetEntriesFast(); |
aea21c57 | 1352 | |
0f6ee828 | 1353 | for (j = 0; j<npart; j++) { |
8507138f | 1354 | TParticle * jparticle = (TParticle *) fParticles.At(j); |
aea21c57 | 1355 | kcode = TMath::Abs( CheckPDGCode(jparticle->GetPdgCode()) ); |
1356 | ks = jparticle->GetStatusCode(); | |
1357 | km = jparticle->GetFirstMother(); | |
1358 | ||
1359 | if( (ks == 1) && (kcode == fPdgCodeParticleforAcceptanceCut) && (KinematicSelection(jparticle,1)) ){ | |
1360 | nPartAcc++; | |
1361 | } | |
0f6ee828 | 1362 | if( numberOfAcceptedParticles <= nPartAcc){ |
1363 | checking = kTRUE; | |
1364 | break; | |
1365 | } | |
aea21c57 | 1366 | } |
0f6ee828 | 1367 | |
aea21c57 | 1368 | return checking; |
aea21c57 | 1369 | } |
1370 | ||
5fa4b20b | 1371 | void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) |
8d2cd130 | 1372 | { |
1058d9df | 1373 | // |
1374 | // Load event into Pythia Common Block | |
1375 | // | |
1376 | ||
1377 | Int_t npart = stack -> GetNprimary(); | |
1378 | Int_t n0 = 0; | |
1379 | ||
1380 | if (!flag) { | |
1381 | (fPythia->GetPyjets())->N = npart; | |
1382 | } else { | |
1383 | n0 = (fPythia->GetPyjets())->N; | |
1384 | (fPythia->GetPyjets())->N = n0 + npart; | |
1385 | } | |
1386 | ||
1387 | ||
1388 | for (Int_t part = 0; part < npart; part++) { | |
1389 | TParticle *mPart = stack->Particle(part); | |
32d6ef7d | 1390 | |
1058d9df | 1391 | Int_t kf = mPart->GetPdgCode(); |
1392 | Int_t ks = mPart->GetStatusCode(); | |
1393 | Int_t idf = mPart->GetFirstDaughter(); | |
1394 | Int_t idl = mPart->GetLastDaughter(); | |
1395 | ||
1396 | if (reHadr) { | |
1397 | if (ks == 11 || ks == 12) { | |
1398 | ks -= 10; | |
1399 | idf = -1; | |
1400 | idl = -1; | |
1401 | } | |
32d6ef7d | 1402 | } |
1403 | ||
1058d9df | 1404 | Float_t px = mPart->Px(); |
1405 | Float_t py = mPart->Py(); | |
1406 | Float_t pz = mPart->Pz(); | |
1407 | Float_t e = mPart->Energy(); | |
1408 | Float_t m = mPart->GetCalcMass(); | |
32d6ef7d | 1409 | |
1058d9df | 1410 | |
1411 | (fPythia->GetPyjets())->P[0][part+n0] = px; | |
1412 | (fPythia->GetPyjets())->P[1][part+n0] = py; | |
1413 | (fPythia->GetPyjets())->P[2][part+n0] = pz; | |
1414 | (fPythia->GetPyjets())->P[3][part+n0] = e; | |
1415 | (fPythia->GetPyjets())->P[4][part+n0] = m; | |
1416 | ||
1417 | (fPythia->GetPyjets())->K[1][part+n0] = kf; | |
1418 | (fPythia->GetPyjets())->K[0][part+n0] = ks; | |
1419 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; | |
1420 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; | |
1421 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | void AliGenPythia::LoadEvent(TObjArray* stack, Int_t flag, Int_t reHadr) | |
1426 | { | |
1427 | // | |
1428 | // Load event into Pythia Common Block | |
1429 | // | |
1430 | ||
1431 | Int_t npart = stack -> GetEntries(); | |
1432 | Int_t n0 = 0; | |
1433 | ||
1434 | if (!flag) { | |
1435 | (fPythia->GetPyjets())->N = npart; | |
1436 | } else { | |
1437 | n0 = (fPythia->GetPyjets())->N; | |
1438 | (fPythia->GetPyjets())->N = n0 + npart; | |
1439 | } | |
1440 | ||
1441 | ||
1442 | for (Int_t part = 0; part < npart; part++) { | |
1443 | TParticle *mPart = dynamic_cast<TParticle *>(stack->At(part)); | |
1444 | Int_t kf = mPart->GetPdgCode(); | |
1445 | Int_t ks = mPart->GetStatusCode(); | |
1446 | Int_t idf = mPart->GetFirstDaughter(); | |
1447 | Int_t idl = mPart->GetLastDaughter(); | |
1448 | ||
1449 | if (reHadr) { | |
5fa4b20b | 1450 | if (ks == 11 || ks == 12) { |
1058d9df | 1451 | ks -= 10; |
1452 | idf = -1; | |
1453 | idl = -1; | |
5fa4b20b | 1454 | } |
8d2cd130 | 1455 | } |
1058d9df | 1456 | |
1457 | Float_t px = mPart->Px(); | |
1458 | Float_t py = mPart->Py(); | |
1459 | Float_t pz = mPart->Pz(); | |
1460 | Float_t e = mPart->Energy(); | |
1461 | Float_t m = mPart->GetCalcMass(); | |
1462 | ||
1463 | ||
1464 | (fPythia->GetPyjets())->P[0][part+n0] = px; | |
1465 | (fPythia->GetPyjets())->P[1][part+n0] = py; | |
1466 | (fPythia->GetPyjets())->P[2][part+n0] = pz; | |
1467 | (fPythia->GetPyjets())->P[3][part+n0] = e; | |
1468 | (fPythia->GetPyjets())->P[4][part+n0] = m; | |
1469 | ||
1470 | (fPythia->GetPyjets())->K[1][part+n0] = kf; | |
1471 | (fPythia->GetPyjets())->K[0][part+n0] = ks; | |
1472 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; | |
1473 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; | |
1474 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; | |
1475 | } | |
8d2cd130 | 1476 | } |
1477 | ||
5fa4b20b | 1478 | |
014a9521 | 1479 | void AliGenPythia::RecJetsUA1(Int_t& njets, Float_t jets [4][50]) |
8d2cd130 | 1480 | { |
1481 | // | |
1482 | // Calls the Pythia jet finding algorithm to find jets in the current event | |
1483 | // | |
1484 | // | |
8d2cd130 | 1485 | // |
1486 | // Save jets | |
1487 | Int_t n = fPythia->GetN(); | |
1488 | ||
1489 | // | |
1490 | // Run Jet Finder | |
1491 | fPythia->Pycell(njets); | |
1492 | Int_t i; | |
1493 | for (i = 0; i < njets; i++) { | |
1494 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; | |
1495 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; | |
1496 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; | |
1497 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; | |
1498 | ||
1499 | jets[0][i] = px; | |
1500 | jets[1][i] = py; | |
1501 | jets[2][i] = pz; | |
1502 | jets[3][i] = e; | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | ||
1507 | ||
1508 | void AliGenPythia::GetJets(Int_t& nJets, Int_t& nJetsTrig, Float_t jets[4][10]) | |
1509 | { | |
1510 | // | |
1511 | // Calls the Pythia clustering algorithm to find jets in the current event | |
1512 | // | |
1513 | Int_t n = fPythia->GetN(); | |
1514 | nJets = 0; | |
1515 | nJetsTrig = 0; | |
1516 | if (fJetReconstruction == kCluster) { | |
1517 | // | |
1518 | // Configure cluster algorithm | |
1519 | // | |
1520 | fPythia->SetPARU(43, 2.); | |
1521 | fPythia->SetMSTU(41, 1); | |
1522 | // | |
1523 | // Call cluster algorithm | |
1524 | // | |
1525 | fPythia->Pyclus(nJets); | |
1526 | // | |
1527 | // Loading jets from common block | |
1528 | // | |
1529 | } else { | |
592f8307 | 1530 | |
8d2cd130 | 1531 | // |
1532 | // Run Jet Finder | |
1533 | fPythia->Pycell(nJets); | |
1534 | } | |
1535 | ||
1536 | Int_t i; | |
1537 | for (i = 0; i < nJets; i++) { | |
1538 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; | |
1539 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; | |
1540 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; | |
1541 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; | |
1542 | Float_t pt = TMath::Sqrt(px * px + py * py); | |
a920faf9 | 1543 | Float_t phi = TMath::Pi() + TMath::ATan2(-py, -px); |
8d2cd130 | 1544 | Float_t theta = TMath::ATan2(pt,pz); |
1545 | Float_t et = e * TMath::Sin(theta); | |
1546 | Float_t eta = -TMath::Log(TMath::Tan(theta / 2.)); | |
8d2cd130 | 1547 | if ( |
1548 | eta > fEtaMinJet && eta < fEtaMaxJet && | |
675eb105 | 1549 | phi > fPhiMinJet && phi < fPhiMaxJet && |
8d2cd130 | 1550 | et > fEtMinJet && et < fEtMaxJet |
1551 | ) | |
1552 | { | |
1553 | jets[0][nJetsTrig] = px; | |
1554 | jets[1][nJetsTrig] = py; | |
1555 | jets[2][nJetsTrig] = pz; | |
1556 | jets[3][nJetsTrig] = e; | |
1557 | nJetsTrig++; | |
5fa4b20b | 1558 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); |
8d2cd130 | 1559 | } else { |
1560 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); | |
1561 | } | |
1562 | } | |
1563 | } | |
1564 | ||
f913ec4f | 1565 | void AliGenPythia::GetSubEventTime() |
1566 | { | |
1567 | // Calculates time of the next subevent | |
9d7108a7 | 1568 | fEventTime = 0.; |
1569 | if (fEventsTime) { | |
1570 | TArrayF &array = *fEventsTime; | |
1571 | fEventTime = array[fCurSubEvent++]; | |
1572 | } | |
1573 | // printf(" Event time: %d %f %p",fCurSubEvent,fEventTime,fEventsTime); | |
1574 | return; | |
f913ec4f | 1575 | } |
8d2cd130 | 1576 | |
ec2c406e | 1577 | Bool_t AliGenPythia::IsInEMCAL(Float_t phi, Float_t eta) |
1578 | { | |
1579 | // Is particle in EMCAL acceptance? | |
ec2c406e | 1580 | // phi in degrees, etamin=-etamax |
9fd8e520 | 1581 | if(phi > fEMCALMinPhi && phi < fEMCALMaxPhi && |
1582 | eta < fEMCALEta ) | |
ec2c406e | 1583 | return kTRUE; |
1584 | else | |
1585 | return kFALSE; | |
1586 | } | |
1587 | ||
1588 | Bool_t AliGenPythia::IsInPHOS(Float_t phi, Float_t eta) | |
1589 | { | |
1590 | // Is particle in PHOS acceptance? | |
1591 | // Acceptance slightly larger considered. | |
1592 | // phi in degrees, etamin=-etamax | |
9fd8e520 | 1593 | if(phi > fPHOSMinPhi && phi < fPHOSMaxPhi && |
1594 | eta < fPHOSEta ) | |
ec2c406e | 1595 | return kTRUE; |
1596 | else | |
1597 | return kFALSE; | |
1598 | } | |
1599 | ||
90a236ce | 1600 | void AliGenPythia::RotatePhi(Int_t iphcand, Bool_t& okdd) |
1601 | { | |
1602 | //calculate the new position random between fPHOSMinPhi and fPHOSMaxPhi | |
1603 | Double_t phiPHOSmin = TMath::Pi()*fPHOSMinPhi/180; | |
1604 | Double_t phiPHOSmax = TMath::Pi()*fPHOSMaxPhi/180; | |
1605 | Double_t phiPHOS = gRandom->Uniform(phiPHOSmin,phiPHOSmax); | |
1606 | ||
1607 | //calculate deltaphi | |
8507138f | 1608 | TParticle* ph = (TParticle *) fParticles.At(iphcand); |
90a236ce | 1609 | Double_t phphi = ph->Phi(); |
1610 | Double_t deltaphi = phiPHOS - phphi; | |
1611 | ||
1612 | ||
1613 | ||
1614 | //loop for all particles and produce the phi rotation | |
8507138f | 1615 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
90a236ce | 1616 | Double_t oldphi, newphi; |
1617 | Double_t newVx, newVy, R, Vz, time; | |
1618 | Double_t newPx, newPy, pt, Pz, e; | |
1619 | for(Int_t i=0; i< np; i++) { | |
8507138f | 1620 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce | 1621 | oldphi = iparticle->Phi(); |
1622 | newphi = oldphi + deltaphi; | |
1623 | if(newphi < 0) newphi = 2*TMath::Pi() + newphi; // correct angle | |
1624 | if(newphi > 2*TMath::Pi()) newphi = newphi - 2*TMath::Pi(); // correct angle | |
1625 | ||
1626 | R = iparticle->R(); | |
1627 | newVx = R*TMath::Cos(newphi); | |
1628 | newVy = R*TMath::Sin(newphi); | |
1629 | Vz = iparticle->Vz(); // don't transform | |
1630 | time = iparticle->T(); // don't transform | |
1631 | ||
1632 | pt = iparticle->Pt(); | |
1633 | newPx = pt*TMath::Cos(newphi); | |
1634 | newPy = pt*TMath::Sin(newphi); | |
1635 | Pz = iparticle->Pz(); // don't transform | |
1636 | e = iparticle->Energy(); // don't transform | |
1637 | ||
1638 | // apply rotation | |
1639 | iparticle->SetProductionVertex(newVx, newVy, Vz, time); | |
1640 | iparticle->SetMomentum(newPx, newPy, Pz, e); | |
1641 | ||
1642 | } //end particle loop | |
1643 | ||
1644 | // now let's check that we put correctly the candidate photon in PHOS | |
1645 | Float_t phi = ph->Phi()*180./TMath::Pi(); //Convert to degrees | |
1646 | Float_t eta =TMath::Abs(ph->Eta());//in calos etamin=-etamax | |
1647 | if(IsInPHOS(phi,eta)) | |
1648 | okdd = kTRUE; | |
1649 | } | |
ec2c406e | 1650 | |
1651 | ||
8d2cd130 | 1652 | #ifdef never |
1653 | void AliGenPythia::Streamer(TBuffer &R__b) | |
1654 | { | |
1655 | // Stream an object of class AliGenPythia. | |
1656 | ||
1657 | if (R__b.IsReading()) { | |
1658 | Version_t R__v = R__b.ReadVersion(); if (R__v) { } | |
1659 | AliGenerator::Streamer(R__b); | |
1660 | R__b >> (Int_t&)fProcess; | |
1661 | R__b >> (Int_t&)fStrucFunc; | |
1662 | R__b >> (Int_t&)fForceDecay; | |
1663 | R__b >> fEnergyCMS; | |
1664 | R__b >> fKineBias; | |
1665 | R__b >> fTrials; | |
1666 | fParentSelect.Streamer(R__b); | |
1667 | fChildSelect.Streamer(R__b); | |
1668 | R__b >> fXsection; | |
1669 | // (AliPythia::Instance())->Streamer(R__b); | |
1670 | R__b >> fPtHardMin; | |
1671 | R__b >> fPtHardMax; | |
1672 | // if (fDecayer) fDecayer->Streamer(R__b); | |
1673 | } else { | |
1674 | R__b.WriteVersion(AliGenPythia::IsA()); | |
1675 | AliGenerator::Streamer(R__b); | |
1676 | R__b << (Int_t)fProcess; | |
1677 | R__b << (Int_t)fStrucFunc; | |
1678 | R__b << (Int_t)fForceDecay; | |
1679 | R__b << fEnergyCMS; | |
1680 | R__b << fKineBias; | |
1681 | R__b << fTrials; | |
1682 | fParentSelect.Streamer(R__b); | |
1683 | fChildSelect.Streamer(R__b); | |
1684 | R__b << fXsection; | |
1685 | // R__b << fPythia; | |
1686 | R__b << fPtHardMin; | |
1687 | R__b << fPtHardMax; | |
1688 | // fDecayer->Streamer(R__b); | |
1689 | } | |
1690 | } | |
1691 | #endif | |
1692 | ||
90d7b703 | 1693 | |
589380c6 | 1694 |