]>
Commit | Line | Data |
---|---|---|
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), | |
03358a32 | 79 | fPatchOmegaDalitz(0), |
e8a8adcd | 80 | fNpartons(0), |
81 | fReadFromFile(0), | |
82 | fQuench(0), | |
cd07c39b | 83 | fQhat(0.), |
84 | fLength(0.), | |
e6fe9b82 | 85 | fImpact(0.), |
e8a8adcd | 86 | fPtKick(1.), |
87 | fFullEvent(kTRUE), | |
88 | fDecayer(new AliDecayerPythia()), | |
89 | fDebugEventFirst(-1), | |
90 | fDebugEventLast(-1), | |
91 | fEtMinJet(0.), | |
92 | fEtMaxJet(1.e4), | |
93 | fEtaMinJet(-20.), | |
94 | fEtaMaxJet(20.), | |
95 | fPhiMinJet(0.), | |
96 | fPhiMaxJet(2.* TMath::Pi()), | |
97 | fJetReconstruction(kCell), | |
98 | fEtaMinGamma(-20.), | |
99 | fEtaMaxGamma(20.), | |
100 | fPhiMinGamma(0.), | |
101 | fPhiMaxGamma(2. * TMath::Pi()), | |
102 | fPycellEtaMax(2.), | |
103 | fPycellNEta(274), | |
104 | fPycellNPhi(432), | |
105 | fPycellThreshold(0.), | |
106 | fPycellEtSeed(4.), | |
107 | fPycellMinEtJet(10.), | |
108 | fPycellMaxRadius(1.), | |
109 | fStackFillOpt(kFlavorSelection), | |
110 | fFeedDownOpt(kTRUE), | |
111 | fFragmentation(kTRUE), | |
112 | fSetNuclei(kFALSE), | |
113 | fNewMIS(kFALSE), | |
114 | fHFoff(kFALSE), | |
20e47f08 | 115 | fNucPdf(0), |
e8a8adcd | 116 | fTriggerParticle(0), |
117 | fTriggerEta(0.9), | |
700b9416 | 118 | fTriggerMultiplicity(0), |
119 | fTriggerMultiplicityEta(0), | |
38112f3f | 120 | fTriggerMultiplicityPtMin(0), |
e8a8adcd | 121 | fCountMode(kCountAll), |
122 | fHeader(0), | |
123 | fRL(0), | |
777e69b0 | 124 | fkFileName(0), |
9fd8e520 | 125 | fFragPhotonInCalo(kFALSE), |
ec2c406e | 126 | fPi0InCalo(kFALSE) , |
90a236ce | 127 | fPhotonInCalo(kFALSE), |
9dfe63b3 | 128 | fEleInEMCAL(kFALSE), |
9fd8e520 | 129 | fCheckEMCAL(kFALSE), |
130 | fCheckPHOS(kFALSE), | |
90a236ce | 131 | fCheckPHOSeta(kFALSE), |
9fd8e520 | 132 | fFragPhotonOrPi0MinPt(0), |
90a236ce | 133 | fPhotonMinPt(0), |
9dfe63b3 | 134 | fElectronMinPt(0), |
9fd8e520 | 135 | fPHOSMinPhi(219.), |
136 | fPHOSMaxPhi(321.), | |
137 | fPHOSEta(0.13), | |
138 | fEMCALMinPhi(79.), | |
139 | fEMCALMaxPhi(191.), | |
140 | fEMCALEta(0.71) | |
ec2c406e | 141 | |
8d2cd130 | 142 | { |
143 | // Default Constructor | |
e7c989e4 | 144 | fEnergyCMS = 5500.; |
7cdba479 | 145 | if (!AliPythiaRndm::GetPythiaRandom()) |
e8a8adcd | 146 | AliPythiaRndm::SetPythiaRandom(GetRandom()); |
8d2cd130 | 147 | } |
148 | ||
149 | AliGenPythia::AliGenPythia(Int_t npart) | |
e8a8adcd | 150 | :AliGenMC(npart), |
151 | fProcess(kPyCharm), | |
efe3b1cd | 152 | fItune(-1), |
e8a8adcd | 153 | fStrucFunc(kCTEQ5L), |
e8a8adcd | 154 | fKineBias(0.), |
155 | fTrials(0), | |
156 | fTrialsRun(0), | |
157 | fQ(0.), | |
158 | fX1(0.), | |
159 | fX2(0.), | |
160 | fEventTime(0.), | |
161 | fInteractionRate(0.), | |
162 | fTimeWindow(0.), | |
163 | fCurSubEvent(0), | |
164 | fEventsTime(0), | |
165 | fNev(0), | |
166 | fFlavorSelect(0), | |
167 | fXsection(0.), | |
168 | fPythia(0), | |
169 | fPtHardMin(0.), | |
170 | fPtHardMax(1.e4), | |
171 | fYHardMin(-1.e10), | |
172 | fYHardMax(1.e10), | |
173 | fGinit(kTRUE), | |
174 | fGfinal(kTRUE), | |
175 | fHadronisation(kTRUE), | |
03358a32 | 176 | fPatchOmegaDalitz(0), |
e8a8adcd | 177 | fNpartons(0), |
178 | fReadFromFile(kFALSE), | |
179 | fQuench(kFALSE), | |
cd07c39b | 180 | fQhat(0.), |
181 | fLength(0.), | |
e6fe9b82 | 182 | fImpact(0.), |
e8a8adcd | 183 | fPtKick(1.), |
184 | fFullEvent(kTRUE), | |
185 | fDecayer(new AliDecayerPythia()), | |
186 | fDebugEventFirst(-1), | |
187 | fDebugEventLast(-1), | |
188 | fEtMinJet(0.), | |
189 | fEtMaxJet(1.e4), | |
190 | fEtaMinJet(-20.), | |
191 | fEtaMaxJet(20.), | |
192 | fPhiMinJet(0.), | |
193 | fPhiMaxJet(2.* TMath::Pi()), | |
194 | fJetReconstruction(kCell), | |
195 | fEtaMinGamma(-20.), | |
196 | fEtaMaxGamma(20.), | |
197 | fPhiMinGamma(0.), | |
198 | fPhiMaxGamma(2. * TMath::Pi()), | |
199 | fPycellEtaMax(2.), | |
200 | fPycellNEta(274), | |
201 | fPycellNPhi(432), | |
202 | fPycellThreshold(0.), | |
203 | fPycellEtSeed(4.), | |
204 | fPycellMinEtJet(10.), | |
205 | fPycellMaxRadius(1.), | |
206 | fStackFillOpt(kFlavorSelection), | |
207 | fFeedDownOpt(kTRUE), | |
208 | fFragmentation(kTRUE), | |
209 | fSetNuclei(kFALSE), | |
210 | fNewMIS(kFALSE), | |
211 | fHFoff(kFALSE), | |
20e47f08 | 212 | fNucPdf(0), |
e8a8adcd | 213 | fTriggerParticle(0), |
214 | fTriggerEta(0.9), | |
700b9416 | 215 | fTriggerMultiplicity(0), |
216 | fTriggerMultiplicityEta(0), | |
38112f3f | 217 | fTriggerMultiplicityPtMin(0), |
e8a8adcd | 218 | fCountMode(kCountAll), |
219 | fHeader(0), | |
220 | fRL(0), | |
777e69b0 | 221 | fkFileName(0), |
9fd8e520 | 222 | fFragPhotonInCalo(kFALSE), |
ec2c406e | 223 | fPi0InCalo(kFALSE) , |
90a236ce | 224 | fPhotonInCalo(kFALSE), |
9dfe63b3 | 225 | fEleInEMCAL(kFALSE), |
9fd8e520 | 226 | fCheckEMCAL(kFALSE), |
227 | fCheckPHOS(kFALSE), | |
90a236ce | 228 | fCheckPHOSeta(kFALSE), |
9fd8e520 | 229 | fFragPhotonOrPi0MinPt(0), |
90a236ce | 230 | fPhotonMinPt(0), |
9dfe63b3 | 231 | fElectronMinPt(0), |
9fd8e520 | 232 | fPHOSMinPhi(219.), |
233 | fPHOSMaxPhi(321.), | |
234 | fPHOSEta(0.13), | |
235 | fEMCALMinPhi(79.), | |
236 | fEMCALMaxPhi(191.), | |
237 | fEMCALEta(0.71) | |
8d2cd130 | 238 | { |
239 | // default charm production at 5. 5 TeV | |
240 | // semimuonic decay | |
241 | // structure function GRVHO | |
242 | // | |
e7c989e4 | 243 | fEnergyCMS = 5500.; |
8d2cd130 | 244 | fName = "Pythia"; |
245 | fTitle= "Particle Generator using PYTHIA"; | |
8d2cd130 | 246 | SetForceDecay(); |
8d2cd130 | 247 | // Set random number generator |
7cdba479 | 248 | if (!AliPythiaRndm::GetPythiaRandom()) |
249 | AliPythiaRndm::SetPythiaRandom(GetRandom()); | |
76d6ba9a | 250 | } |
8d2cd130 | 251 | |
8d2cd130 | 252 | AliGenPythia::~AliGenPythia() |
253 | { | |
254 | // Destructor | |
9d7108a7 | 255 | if(fEventsTime) delete fEventsTime; |
256 | } | |
257 | ||
258 | void AliGenPythia::SetInteractionRate(Float_t rate,Float_t timewindow) | |
259 | { | |
260 | // Generate pileup using user specified rate | |
261 | fInteractionRate = rate; | |
262 | fTimeWindow = timewindow; | |
263 | GeneratePileup(); | |
264 | } | |
265 | ||
266 | void AliGenPythia::GeneratePileup() | |
267 | { | |
268 | // Generate sub events time for pileup | |
269 | fEventsTime = 0; | |
270 | if(fInteractionRate == 0.) { | |
271 | Warning("GeneratePileup","Zero interaction specified. Skipping pileup generation.\n"); | |
272 | return; | |
273 | } | |
274 | ||
275 | Int_t npart = NumberParticles(); | |
276 | if(npart < 0) { | |
277 | Warning("GeneratePileup","Negative number of particles. Skipping pileup generation.\n"); | |
278 | return; | |
279 | } | |
280 | ||
281 | if(fEventsTime) delete fEventsTime; | |
282 | fEventsTime = new TArrayF(npart); | |
283 | TArrayF &array = *fEventsTime; | |
284 | for(Int_t ipart = 0; ipart < npart; ipart++) | |
285 | array[ipart] = 0.; | |
286 | ||
287 | Float_t eventtime = 0.; | |
288 | while(1) | |
289 | { | |
290 | eventtime += (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); | |
291 | if(eventtime > fTimeWindow) break; | |
292 | array.Set(array.GetSize()+1); | |
293 | array[array.GetSize()-1] = eventtime; | |
294 | } | |
295 | ||
296 | eventtime = 0.; | |
297 | while(1) | |
298 | { | |
299 | eventtime -= (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); | |
300 | if(TMath::Abs(eventtime) > fTimeWindow) break; | |
301 | array.Set(array.GetSize()+1); | |
302 | array[array.GetSize()-1] = eventtime; | |
303 | } | |
304 | ||
305 | SetNumberParticles(fEventsTime->GetSize()); | |
8d2cd130 | 306 | } |
307 | ||
592f8307 | 308 | void AliGenPythia::SetPycellParameters(Float_t etamax, Int_t neta, Int_t nphi, |
309 | Float_t thresh, Float_t etseed, Float_t minet, Float_t r) | |
310 | { | |
311 | // Set pycell parameters | |
312 | fPycellEtaMax = etamax; | |
313 | fPycellNEta = neta; | |
314 | fPycellNPhi = nphi; | |
315 | fPycellThreshold = thresh; | |
316 | fPycellEtSeed = etseed; | |
317 | fPycellMinEtJet = minet; | |
318 | fPycellMaxRadius = r; | |
319 | } | |
320 | ||
321 | ||
322 | ||
8d2cd130 | 323 | void AliGenPythia::SetEventListRange(Int_t eventFirst, Int_t eventLast) |
324 | { | |
325 | // Set a range of event numbers, for which a table | |
326 | // of generated particle will be printed | |
327 | fDebugEventFirst = eventFirst; | |
328 | fDebugEventLast = eventLast; | |
329 | if (fDebugEventLast==-1) fDebugEventLast=fDebugEventFirst; | |
330 | } | |
331 | ||
332 | void AliGenPythia::Init() | |
333 | { | |
334 | // Initialisation | |
335 | ||
336 | SetMC(AliPythia::Instance()); | |
b88f5cea | 337 | fPythia=(AliPythia*) fMCEvGen; |
e2bddf81 | 338 | |
8d2cd130 | 339 | // |
340 | fParentWeight=1./Float_t(fNpart); | |
341 | // | |
8d2cd130 | 342 | |
343 | ||
344 | fPythia->SetCKIN(3,fPtHardMin); | |
345 | fPythia->SetCKIN(4,fPtHardMax); | |
346 | fPythia->SetCKIN(7,fYHardMin); | |
347 | fPythia->SetCKIN(8,fYHardMax); | |
348 | ||
20e47f08 | 349 | if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget, fNucPdf); |
8d2cd130 | 350 | // Fragmentation? |
351 | if (fFragmentation) { | |
352 | fPythia->SetMSTP(111,1); | |
353 | } else { | |
354 | fPythia->SetMSTP(111,0); | |
355 | } | |
356 | ||
357 | ||
358 | // initial state radiation | |
359 | fPythia->SetMSTP(61,fGinit); | |
360 | // final state radiation | |
361 | fPythia->SetMSTP(71,fGfinal); | |
362 | // pt - kick | |
363 | if (fPtKick > 0.) { | |
364 | fPythia->SetMSTP(91,1); | |
688950ef | 365 | fPythia->SetPARP(91,fPtKick); |
366 | fPythia->SetPARP(93, 4. * fPtKick); | |
8d2cd130 | 367 | } else { |
368 | fPythia->SetMSTP(91,0); | |
369 | } | |
370 | ||
5fa4b20b | 371 | |
372 | if (fReadFromFile) { | |
777e69b0 | 373 | fRL = AliRunLoader::Open(fkFileName, "Partons"); |
5fa4b20b | 374 | fRL->LoadKinematics(); |
375 | fRL->LoadHeader(); | |
376 | } else { | |
377 | fRL = 0x0; | |
378 | } | |
fdea4387 | 379 | // |
efe3b1cd | 380 | fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc, fItune); |
fdea4387 | 381 | // Forward Paramters to the AliPythia object |
382 | fDecayer->SetForceDecay(fForceDecay); | |
beac474c | 383 | // Switch off Heavy Flavors on request |
384 | if (fHFoff) { | |
51387949 | 385 | // Maximum number of quark flavours used in pdf |
beac474c | 386 | fPythia->SetMSTP(58, 3); |
51387949 | 387 | // Maximum number of flavors that can be used in showers |
beac474c | 388 | fPythia->SetMSTJ(45, 3); |
51387949 | 389 | // Switch off g->QQbar splitting in decay table |
390 | ((AliDecayerPythia*) fDecayer)->HeavyFlavourOff(); | |
beac474c | 391 | } |
fdea4387 | 392 | |
51387949 | 393 | fDecayer->Init(); |
394 | ||
8d2cd130 | 395 | |
396 | // Parent and Children Selection | |
397 | switch (fProcess) | |
398 | { | |
65f2626c | 399 | case kPyOldUEQ2ordered: |
400 | case kPyOldUEQ2ordered2: | |
401 | case kPyOldPopcorn: | |
402 | break; | |
8d2cd130 | 403 | case kPyCharm: |
404 | case kPyCharmUnforced: | |
adf4d898 | 405 | case kPyCharmPbPbMNR: |
aabc7187 | 406 | case kPyCharmpPbMNR: |
e0e89f40 | 407 | case kPyCharmppMNR: |
408 | case kPyCharmppMNRwmi: | |
8d2cd130 | 409 | fParentSelect[0] = 411; |
410 | fParentSelect[1] = 421; | |
411 | fParentSelect[2] = 431; | |
412 | fParentSelect[3] = 4122; | |
9ccc3d0e | 413 | fParentSelect[4] = 4232; |
414 | fParentSelect[5] = 4132; | |
415 | fParentSelect[6] = 4332; | |
8d2cd130 | 416 | fFlavorSelect = 4; |
417 | break; | |
adf4d898 | 418 | case kPyD0PbPbMNR: |
419 | case kPyD0pPbMNR: | |
420 | case kPyD0ppMNR: | |
8d2cd130 | 421 | fParentSelect[0] = 421; |
422 | fFlavorSelect = 4; | |
423 | break; | |
90d7b703 | 424 | case kPyDPlusPbPbMNR: |
425 | case kPyDPluspPbMNR: | |
426 | case kPyDPlusppMNR: | |
427 | fParentSelect[0] = 411; | |
428 | fFlavorSelect = 4; | |
429 | break; | |
e0e89f40 | 430 | case kPyDPlusStrangePbPbMNR: |
431 | case kPyDPlusStrangepPbMNR: | |
432 | case kPyDPlusStrangeppMNR: | |
433 | fParentSelect[0] = 431; | |
434 | fFlavorSelect = 4; | |
435 | break; | |
68504d42 | 436 | case kPyLambdacppMNR: |
437 | fParentSelect[0] = 4122; | |
438 | fFlavorSelect = 4; | |
439 | break; | |
8d2cd130 | 440 | case kPyBeauty: |
9dfe63b3 | 441 | case kPyBeautyJets: |
adf4d898 | 442 | case kPyBeautyPbPbMNR: |
443 | case kPyBeautypPbMNR: | |
444 | case kPyBeautyppMNR: | |
e0e89f40 | 445 | case kPyBeautyppMNRwmi: |
8d2cd130 | 446 | fParentSelect[0]= 511; |
447 | fParentSelect[1]= 521; | |
448 | fParentSelect[2]= 531; | |
449 | fParentSelect[3]= 5122; | |
450 | fParentSelect[4]= 5132; | |
451 | fParentSelect[5]= 5232; | |
452 | fParentSelect[6]= 5332; | |
453 | fFlavorSelect = 5; | |
454 | break; | |
455 | case kPyBeautyUnforced: | |
456 | fParentSelect[0] = 511; | |
457 | fParentSelect[1] = 521; | |
458 | fParentSelect[2] = 531; | |
459 | fParentSelect[3] = 5122; | |
460 | fParentSelect[4] = 5132; | |
461 | fParentSelect[5] = 5232; | |
462 | fParentSelect[6] = 5332; | |
463 | fFlavorSelect = 5; | |
464 | break; | |
465 | case kPyJpsiChi: | |
466 | case kPyJpsi: | |
467 | fParentSelect[0] = 443; | |
468 | break; | |
f529e69b | 469 | case kPyMbDefault: |
0bd3d7c5 | 470 | case kPyMbAtlasTuneMC09: |
8d2cd130 | 471 | case kPyMb: |
04081a91 | 472 | case kPyMbWithDirectPhoton: |
8d2cd130 | 473 | case kPyMbNonDiffr: |
d7de4a67 | 474 | case kPyMbMSEL1: |
8d2cd130 | 475 | case kPyJets: |
476 | case kPyDirectGamma: | |
e33acb67 | 477 | case kPyLhwgMb: |
8d2cd130 | 478 | break; |
589380c6 | 479 | case kPyW: |
0f6ee828 | 480 | case kPyZ: |
589380c6 | 481 | break; |
8d2cd130 | 482 | } |
483 | // | |
592f8307 | 484 | // |
485 | // JetFinder for Trigger | |
486 | // | |
487 | // Configure detector (EMCAL like) | |
488 | // | |
d7de4a67 | 489 | fPythia->SetPARU(51, fPycellEtaMax); |
490 | fPythia->SetMSTU(51, fPycellNEta); | |
491 | fPythia->SetMSTU(52, fPycellNPhi); | |
592f8307 | 492 | // |
493 | // Configure Jet Finder | |
494 | // | |
d7de4a67 | 495 | fPythia->SetPARU(58, fPycellThreshold); |
496 | fPythia->SetPARU(52, fPycellEtSeed); | |
497 | fPythia->SetPARU(53, fPycellMinEtJet); | |
498 | fPythia->SetPARU(54, fPycellMaxRadius); | |
499 | fPythia->SetMSTU(54, 2); | |
592f8307 | 500 | // |
8d2cd130 | 501 | // This counts the total number of calls to Pyevnt() per run. |
502 | fTrialsRun = 0; | |
503 | fQ = 0.; | |
504 | fX1 = 0.; | |
505 | fX2 = 0.; | |
506 | fNev = 0 ; | |
507 | // | |
1d568bc2 | 508 | // |
509 | // | |
8d2cd130 | 510 | AliGenMC::Init(); |
1d568bc2 | 511 | // |
512 | // | |
513 | // | |
514 | if (fSetNuclei) { | |
515 | fDyBoost = 0; | |
516 | Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n"); | |
517 | } | |
d7de4a67 | 518 | |
cd07c39b | 519 | fPythia->SetPARJ(200, 0.0); |
520 | fPythia->SetPARJ(199, 0.0); | |
521 | fPythia->SetPARJ(198, 0.0); | |
522 | fPythia->SetPARJ(197, 0.0); | |
523 | ||
524 | if (fQuench == 1) { | |
5fa4b20b | 525 | fPythia->InitQuenching(0., 0.1, 0.6e6, 0); |
32d6ef7d | 526 | } |
3a709cfa | 527 | |
b976f7d8 | 528 | if (fQuench == 3) { |
529 | // Nestor's change of the splittings | |
530 | fPythia->SetPARJ(200, 0.8); | |
531 | fPythia->SetMSTJ(41, 1); // QCD radiation only | |
532 | fPythia->SetMSTJ(42, 2); // angular ordering | |
533 | fPythia->SetMSTJ(44, 2); // option to run alpha_s | |
534 | fPythia->SetMSTJ(47, 0); // No correction back to hard scattering element | |
535 | fPythia->SetMSTJ(50, 0); // No coherence in first branching | |
536 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers | |
cd07c39b | 537 | } else if (fQuench == 4) { |
538 | // Armesto-Cunqueiro-Salgado change of the splittings. | |
539 | AliFastGlauber* glauber = AliFastGlauber::Instance(); | |
540 | glauber->Init(2); | |
541 | //read and store transverse almonds corresponding to differnt | |
542 | //impact parameters. | |
cd07c39b | 543 | glauber->SetCentralityClass(0.,0.1); |
544 | fPythia->SetPARJ(200, 1.); | |
545 | fPythia->SetPARJ(198, fQhat); | |
546 | fPythia->SetPARJ(199, fLength); | |
cd07c39b | 547 | fPythia->SetMSTJ(42, 2); // angular ordering |
548 | fPythia->SetMSTJ(44, 2); // option to run alpha_s | |
cd07c39b | 549 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers |
b976f7d8 | 550 | } |
8d2cd130 | 551 | } |
552 | ||
553 | void AliGenPythia::Generate() | |
554 | { | |
555 | // Generate one event | |
19ef8cf0 | 556 | if (!fPythia) fPythia=(AliPythia*) fMCEvGen; |
8d2cd130 | 557 | fDecayer->ForceDecay(); |
558 | ||
13cca24a | 559 | Double_t polar[3] = {0,0,0}; |
560 | Double_t origin[3] = {0,0,0}; | |
561 | Double_t p[4]; | |
8d2cd130 | 562 | // converts from mm/c to s |
563 | const Float_t kconv=0.001/2.999792458e8; | |
564 | // | |
565 | Int_t nt=0; | |
566 | Int_t jev=0; | |
567 | Int_t j, kf; | |
568 | fTrials=0; | |
f913ec4f | 569 | fEventTime = 0.; |
570 | ||
2590ccf9 | 571 | |
8d2cd130 | 572 | |
573 | // Set collision vertex position | |
2590ccf9 | 574 | if (fVertexSmear == kPerEvent) Vertex(); |
575 | ||
8d2cd130 | 576 | // event loop |
577 | while(1) | |
578 | { | |
32d6ef7d | 579 | // |
5fa4b20b | 580 | // Produce event |
32d6ef7d | 581 | // |
32d6ef7d | 582 | // |
5fa4b20b | 583 | // Switch hadronisation off |
584 | // | |
585 | fPythia->SetMSTJ(1, 0); | |
cd07c39b | 586 | |
587 | if (fQuench ==4){ | |
588 | Double_t bimp; | |
589 | // Quenching comes through medium-modified splitting functions. | |
590 | AliFastGlauber::Instance()->GetRandomBHard(bimp); | |
e6fe9b82 | 591 | fPythia->SetPARJ(197, bimp); |
592 | fImpact = bimp; | |
6c43eccb | 593 | fPythia->Qpygin0(); |
cd07c39b | 594 | } |
32d6ef7d | 595 | // |
5fa4b20b | 596 | // Either produce new event or read partons from file |
597 | // | |
598 | if (!fReadFromFile) { | |
beac474c | 599 | if (!fNewMIS) { |
600 | fPythia->Pyevnt(); | |
601 | } else { | |
602 | fPythia->Pyevnw(); | |
603 | } | |
5fa4b20b | 604 | fNpartons = fPythia->GetN(); |
605 | } else { | |
33c3c91a | 606 | printf("Loading Event %d\n",AliRunLoader::Instance()->GetEventNumber()); |
607 | fRL->GetEvent(AliRunLoader::Instance()->GetEventNumber()); | |
5fa4b20b | 608 | fPythia->SetN(0); |
609 | LoadEvent(fRL->Stack(), 0 , 1); | |
610 | fPythia->Pyedit(21); | |
611 | } | |
612 | ||
32d6ef7d | 613 | // |
614 | // Run quenching routine | |
615 | // | |
5fa4b20b | 616 | if (fQuench == 1) { |
617 | fPythia->Quench(); | |
618 | } else if (fQuench == 2){ | |
619 | fPythia->Pyquen(208., 0, 0.); | |
b976f7d8 | 620 | } else if (fQuench == 3) { |
621 | // Quenching is via multiplicative correction of the splittings | |
5fa4b20b | 622 | } |
b976f7d8 | 623 | |
32d6ef7d | 624 | // |
5fa4b20b | 625 | // Switch hadronisation on |
32d6ef7d | 626 | // |
20e47f08 | 627 | if (fHadronisation) { |
628 | fPythia->SetMSTJ(1, 1); | |
5fa4b20b | 629 | // |
630 | // .. and perform hadronisation | |
aea21c57 | 631 | // printf("Calling hadronisation %d\n", fPythia->GetN()); |
03358a32 | 632 | |
633 | if (fPatchOmegaDalitz) { | |
634 | fPythia->SetMDCY(fPythia->Pycomp(111) ,1, 0); | |
635 | fPythia->Pyexec(); | |
636 | fPythia->DalitzDecays(); | |
637 | fPythia->SetMDCY(fPythia->Pycomp(111) ,1, 1); | |
638 | } | |
639 | fPythia->Pyexec(); | |
20e47f08 | 640 | } |
8d2cd130 | 641 | fTrials++; |
8507138f | 642 | fPythia->ImportParticles(&fParticles,"All"); |
03358a32 | 643 | |
df275cfa | 644 | if (TMath::Abs(fDyBoost) > 1.e-4) Boost(); |
e1cf8975 | 645 | if(TMath::Abs(fXingAngleY) > 1.e-10) BeamCrossAngle(); |
f64640b5 | 646 | |
8d2cd130 | 647 | // |
648 | // | |
649 | // | |
650 | Int_t i; | |
651 | ||
dbd64db6 | 652 | fNprimaries = 0; |
8507138f | 653 | Int_t np = fParticles.GetEntriesFast(); |
5fa4b20b | 654 | |
7c21f297 | 655 | if (np == 0) continue; |
8d2cd130 | 656 | // |
2590ccf9 | 657 | |
8d2cd130 | 658 | // |
659 | Int_t* pParent = new Int_t[np]; | |
660 | Int_t* pSelected = new Int_t[np]; | |
661 | Int_t* trackIt = new Int_t[np]; | |
5fa4b20b | 662 | for (i = 0; i < np; i++) { |
8d2cd130 | 663 | pParent[i] = -1; |
664 | pSelected[i] = 0; | |
665 | trackIt[i] = 0; | |
666 | } | |
667 | ||
668 | Int_t nc = 0; // Total n. of selected particles | |
669 | Int_t nParents = 0; // Selected parents | |
670 | Int_t nTkbles = 0; // Trackable particles | |
f529e69b | 671 | if (fProcess != kPyMbDefault && |
672 | fProcess != kPyMb && | |
6d2ec66d | 673 | fProcess != kPyMbAtlasTuneMC09 && |
04081a91 | 674 | fProcess != kPyMbWithDirectPhoton && |
f529e69b | 675 | fProcess != kPyJets && |
8d2cd130 | 676 | fProcess != kPyDirectGamma && |
589380c6 | 677 | fProcess != kPyMbNonDiffr && |
d7de4a67 | 678 | fProcess != kPyMbMSEL1 && |
f529e69b | 679 | fProcess != kPyW && |
680 | fProcess != kPyZ && | |
681 | fProcess != kPyCharmppMNRwmi && | |
9dfe63b3 | 682 | fProcess != kPyBeautyppMNRwmi && |
683 | fProcess != kPyBeautyJets) { | |
8d2cd130 | 684 | |
5fa4b20b | 685 | for (i = 0; i < np; i++) { |
8507138f | 686 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 | 687 | Int_t ks = iparticle->GetStatusCode(); |
688 | kf = CheckPDGCode(iparticle->GetPdgCode()); | |
689 | // No initial state partons | |
690 | if (ks==21) continue; | |
691 | // | |
692 | // Heavy Flavor Selection | |
693 | // | |
694 | // quark ? | |
695 | kf = TMath::Abs(kf); | |
696 | Int_t kfl = kf; | |
9ff6c04c | 697 | // Resonance |
f913ec4f | 698 | |
9ff6c04c | 699 | if (kfl > 100000) kfl %= 100000; |
183a5ca9 | 700 | if (kfl > 10000) kfl %= 10000; |
8d2cd130 | 701 | // meson ? |
702 | if (kfl > 10) kfl/=100; | |
703 | // baryon | |
704 | if (kfl > 10) kfl/=10; | |
8d2cd130 | 705 | Int_t ipa = iparticle->GetFirstMother()-1; |
706 | Int_t kfMo = 0; | |
f913ec4f | 707 | // |
708 | // Establish mother daughter relation between heavy quarks and mesons | |
709 | // | |
710 | if (kf >= fFlavorSelect && kf <= 6) { | |
711 | Int_t idau = iparticle->GetFirstDaughter() - 1; | |
712 | if (idau > -1) { | |
8507138f | 713 | TParticle* daughter = (TParticle *) fParticles.At(idau); |
f913ec4f | 714 | Int_t pdgD = daughter->GetPdgCode(); |
715 | if (pdgD == 91 || pdgD == 92) { | |
716 | Int_t jmin = daughter->GetFirstDaughter() - 1; | |
717 | Int_t jmax = daughter->GetLastDaughter() - 1; | |
2ab330c9 | 718 | for (Int_t jp = jmin; jp <= jmax; jp++) |
719 | ((TParticle *) fParticles.At(jp))->SetFirstMother(i+1); | |
f913ec4f | 720 | } // is string or cluster |
721 | } // has daughter | |
722 | } // heavy quark | |
8d2cd130 | 723 | |
f913ec4f | 724 | |
8d2cd130 | 725 | if (ipa > -1) { |
8507138f | 726 | TParticle * mother = (TParticle *) fParticles.At(ipa); |
8d2cd130 | 727 | kfMo = TMath::Abs(mother->GetPdgCode()); |
728 | } | |
f913ec4f | 729 | |
8d2cd130 | 730 | // What to keep in Stack? |
731 | Bool_t flavorOK = kFALSE; | |
732 | Bool_t selectOK = kFALSE; | |
733 | if (fFeedDownOpt) { | |
32d6ef7d | 734 | if (kfl >= fFlavorSelect) flavorOK = kTRUE; |
8d2cd130 | 735 | } else { |
32d6ef7d | 736 | if (kfl > fFlavorSelect) { |
737 | nc = -1; | |
738 | break; | |
739 | } | |
740 | if (kfl == fFlavorSelect) flavorOK = kTRUE; | |
8d2cd130 | 741 | } |
742 | switch (fStackFillOpt) { | |
743 | case kFlavorSelection: | |
32d6ef7d | 744 | selectOK = kTRUE; |
745 | break; | |
8d2cd130 | 746 | case kParentSelection: |
32d6ef7d | 747 | if (ParentSelected(kf) || kf <= 10) selectOK = kTRUE; |
748 | break; | |
8d2cd130 | 749 | } |
750 | if (flavorOK && selectOK) { | |
751 | // | |
752 | // Heavy flavor hadron or quark | |
753 | // | |
754 | // Kinematic seletion on final state heavy flavor mesons | |
755 | if (ParentSelected(kf) && !KinematicSelection(iparticle, 0)) | |
756 | { | |
9ff6c04c | 757 | continue; |
8d2cd130 | 758 | } |
759 | pSelected[i] = 1; | |
760 | if (ParentSelected(kf)) ++nParents; // Update parent count | |
761 | // printf("\n particle (HF) %d %d %d", i, pSelected[i], kf); | |
762 | } else { | |
763 | // Kinematic seletion on decay products | |
764 | if (fCutOnChild && ParentSelected(kfMo) && ChildSelected(kf) | |
9ff6c04c | 765 | && !KinematicSelection(iparticle, 1)) |
8d2cd130 | 766 | { |
9ff6c04c | 767 | continue; |
8d2cd130 | 768 | } |
769 | // | |
770 | // Decay products | |
771 | // Select if mother was selected and is not tracked | |
772 | ||
773 | if (pSelected[ipa] && | |
774 | !trackIt[ipa] && // mother will be tracked ? | |
775 | kfMo != 5 && // mother is b-quark, don't store fragments | |
776 | kfMo != 4 && // mother is c-quark, don't store fragments | |
777 | kf != 92) // don't store string | |
778 | { | |
779 | // | |
780 | // Semi-stable or de-selected: diselect decay products: | |
781 | // | |
782 | // | |
783 | if (pSelected[i] == -1 || fDecayer->GetLifetime(kf) > fMaxLifeTime) | |
784 | { | |
785 | Int_t ipF = iparticle->GetFirstDaughter(); | |
786 | Int_t ipL = iparticle->GetLastDaughter(); | |
787 | if (ipF > 0) for (j = ipF-1; j < ipL; j++) pSelected[j] = -1; | |
788 | } | |
789 | // printf("\n particle (decay) %d %d %d", i, pSelected[i], kf); | |
790 | pSelected[i] = (pSelected[i] == -1) ? 0 : 1; | |
791 | } | |
792 | } | |
793 | if (pSelected[i] == -1) pSelected[i] = 0; | |
794 | if (!pSelected[i]) continue; | |
795 | // Count quarks only if you did not include fragmentation | |
796 | if (fFragmentation && kf <= 10) continue; | |
9ff6c04c | 797 | |
8d2cd130 | 798 | nc++; |
799 | // Decision on tracking | |
800 | trackIt[i] = 0; | |
801 | // | |
802 | // Track final state particle | |
803 | if (ks == 1) trackIt[i] = 1; | |
804 | // Track semi-stable particles | |
d25cfd65 | 805 | if ((ks == 1) || (fDecayer->GetLifetime(kf) > fMaxLifeTime)) trackIt[i] = 1; |
8d2cd130 | 806 | // Track particles selected by process if undecayed. |
807 | if (fForceDecay == kNoDecay) { | |
808 | if (ParentSelected(kf)) trackIt[i] = 1; | |
809 | } else { | |
810 | if (ParentSelected(kf)) trackIt[i] = 0; | |
811 | } | |
812 | if (trackIt[i] == 1) ++nTkbles; // Update trackable counter | |
813 | // | |
814 | // | |
815 | ||
816 | } // particle selection loop | |
817 | if (nc > 0) { | |
818 | for (i = 0; i<np; i++) { | |
819 | if (!pSelected[i]) continue; | |
8507138f | 820 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 | 821 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
822 | Int_t ks = iparticle->GetStatusCode(); | |
823 | p[0] = iparticle->Px(); | |
824 | p[1] = iparticle->Py(); | |
825 | p[2] = iparticle->Pz(); | |
a920faf9 | 826 | p[3] = iparticle->Energy(); |
827 | ||
2590ccf9 | 828 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
829 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] | |
830 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] | |
831 | ||
8d2cd130 | 832 | Float_t tof = kconv*iparticle->T(); |
833 | Int_t ipa = iparticle->GetFirstMother()-1; | |
834 | Int_t iparent = (ipa > -1) ? pParent[ipa] : -1; | |
a920faf9 | 835 | |
836 | PushTrack(fTrackIt*trackIt[i], iparent, kf, | |
837 | p[0], p[1], p[2], p[3], | |
838 | origin[0], origin[1], origin[2], tof, | |
839 | polar[0], polar[1], polar[2], | |
840 | kPPrimary, nt, 1., ks); | |
8d2cd130 | 841 | pParent[i] = nt; |
dbd64db6 | 842 | KeepTrack(nt); |
843 | fNprimaries++; | |
642f15cf | 844 | } // PushTrack loop |
8d2cd130 | 845 | } |
846 | } else { | |
847 | nc = GenerateMB(); | |
848 | } // mb ? | |
f913ec4f | 849 | |
850 | GetSubEventTime(); | |
8d2cd130 | 851 | |
234f6d32 | 852 | delete[] pParent; |
853 | delete[] pSelected; | |
854 | delete[] trackIt; | |
8d2cd130 | 855 | |
856 | if (nc > 0) { | |
857 | switch (fCountMode) { | |
858 | case kCountAll: | |
859 | // printf(" Count all \n"); | |
860 | jev += nc; | |
861 | break; | |
862 | case kCountParents: | |
863 | // printf(" Count parents \n"); | |
864 | jev += nParents; | |
865 | break; | |
866 | case kCountTrackables: | |
867 | // printf(" Count trackable \n"); | |
868 | jev += nTkbles; | |
869 | break; | |
870 | } | |
871 | if (jev >= fNpart || fNpart == -1) { | |
872 | fKineBias=Float_t(fNpart)/Float_t(fTrials); | |
e0e89f40 | 873 | |
8d2cd130 | 874 | fQ += fPythia->GetVINT(51); |
875 | fX1 += fPythia->GetVINT(41); | |
876 | fX2 += fPythia->GetVINT(42); | |
877 | fTrialsRun += fTrials; | |
878 | fNev++; | |
879 | MakeHeader(); | |
880 | break; | |
881 | } | |
882 | } | |
883 | } // event loop | |
884 | SetHighWaterMark(nt); | |
885 | // adjust weight due to kinematic selection | |
b88f5cea | 886 | // AdjustWeights(); |
8d2cd130 | 887 | // get cross-section |
888 | fXsection=fPythia->GetPARI(1); | |
889 | } | |
890 | ||
891 | Int_t AliGenPythia::GenerateMB() | |
892 | { | |
893 | // | |
894 | // Min Bias selection and other global selections | |
895 | // | |
896 | Int_t i, kf, nt, iparent; | |
897 | Int_t nc = 0; | |
13cca24a | 898 | Double_t p[4]; |
899 | Double_t polar[3] = {0,0,0}; | |
900 | Double_t origin[3] = {0,0,0}; | |
8d2cd130 | 901 | // converts from mm/c to s |
902 | const Float_t kconv=0.001/2.999792458e8; | |
903 | ||
e0e89f40 | 904 | |
905 | ||
8507138f | 906 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
aea21c57 | 907 | |
5fa4b20b | 908 | |
e0e89f40 | 909 | |
8d2cd130 | 910 | Int_t* pParent = new Int_t[np]; |
911 | for (i=0; i< np; i++) pParent[i] = -1; | |
2f405d65 | 912 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) { |
8507138f | 913 | TParticle* jet1 = (TParticle *) fParticles.At(6); |
914 | TParticle* jet2 = (TParticle *) fParticles.At(7); | |
234f6d32 | 915 | if (!CheckTrigger(jet1, jet2)) { |
916 | delete [] pParent; | |
917 | return 0; | |
918 | } | |
8d2cd130 | 919 | } |
e0e89f40 | 920 | |
9fd8e520 | 921 | // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL |
922 | if (fProcess == kPyJets && (fFragPhotonInCalo || fPi0InCalo) ) { | |
ec2c406e | 923 | |
924 | Bool_t ok = kFALSE; | |
925 | ||
926 | Int_t pdg = 0; | |
9fd8e520 | 927 | if (fFragPhotonInCalo) pdg = 22 ; // Photon |
6d2ec66d | 928 | else if (fPi0InCalo) pdg = 111 ; // Pi0 |
ec2c406e | 929 | |
930 | for (i=0; i< np; i++) { | |
8507138f | 931 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
ec2c406e | 932 | if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && |
9fd8e520 | 933 | iparticle->Pt() > fFragPhotonOrPi0MinPt){ |
562cbbcf | 934 | Int_t imother = iparticle->GetFirstMother() - 1; |
8507138f | 935 | TParticle* pmother = (TParticle *) fParticles.At(imother); |
9fd8e520 | 936 | if(pdg == 111 || |
82e0bdff | 937 | (pdg == 22 && pmother->GetStatusCode() != 11)) //No photon from hadron decay |
9fd8e520 | 938 | { |
939 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees | |
82e0bdff | 940 | Float_t eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax |
9fd8e520 | 941 | if((fCheckEMCAL && IsInEMCAL(phi,eta)) || |
942 | (fCheckPHOS && IsInPHOS(phi,eta)) ) | |
943 | ok =kTRUE; | |
944 | } | |
ec2c406e | 945 | } |
946 | } | |
1ee02229 | 947 | if(!ok) { |
948 | delete[] pParent; | |
949 | return 0; | |
950 | } | |
ec2c406e | 951 | } |
9dfe63b3 | 952 | |
953 | // Select beauty jets with electron in EMCAL | |
954 | if (fProcess == kPyBeautyJets && fEleInEMCAL) { | |
955 | ||
956 | Bool_t ok = kFALSE; | |
957 | ||
958 | Int_t pdg = 11; //electron | |
959 | ||
70574ff8 | 960 | Float_t pt = 0.; |
961 | Float_t eta = 0.; | |
962 | Float_t phi = 0.; | |
9dfe63b3 | 963 | for (i=0; i< np; i++) { |
964 | TParticle* iparticle = (TParticle *) fParticles.At(i); | |
965 | if(iparticle->GetStatusCode()==1 && TMath::Abs(iparticle->GetPdgCode())==pdg && | |
966 | iparticle->Pt() > fElectronMinPt){ | |
967 | pt = iparticle->Pt(); | |
968 | phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees | |
969 | eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax | |
970 | if(IsInEMCAL(phi,eta)) | |
971 | ok =kTRUE; | |
972 | } | |
973 | } | |
92847124 | 974 | if(!ok) { |
975 | delete[] pParent; | |
9dfe63b3 | 976 | return 0; |
92847124 | 977 | } |
978 | ||
9dfe63b3 | 979 | AliDebug(5,Form("Found an electron jet (pt,eta,phi) = (%f,%f,%f)",pt,eta,phi)); |
980 | } | |
700b9416 | 981 | // Check for minimum multiplicity |
982 | if (fTriggerMultiplicity > 0) { | |
983 | Int_t multiplicity = 0; | |
984 | for (i = 0; i < np; i++) { | |
8507138f | 985 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
700b9416 | 986 | |
987 | Int_t statusCode = iparticle->GetStatusCode(); | |
988 | ||
989 | // Initial state particle | |
e296848e | 990 | if (statusCode != 1) |
700b9416 | 991 | continue; |
38112f3f | 992 | // eta cut |
700b9416 | 993 | if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta) |
994 | continue; | |
38112f3f | 995 | // pt cut |
996 | if (iparticle->Pt() < fTriggerMultiplicityPtMin) | |
997 | continue; | |
998 | ||
700b9416 | 999 | TParticlePDG* pdgPart = iparticle->GetPDG(); |
1000 | if (pdgPart && pdgPart->Charge() == 0) | |
1001 | continue; | |
1002 | ||
1003 | ++multiplicity; | |
1004 | } | |
1005 | ||
1006 | if (multiplicity < fTriggerMultiplicity) { | |
1007 | delete [] pParent; | |
1008 | return 0; | |
1009 | } | |
38112f3f | 1010 | Printf("Triggered on event with multiplicity of %d >= %d", multiplicity, fTriggerMultiplicity); |
700b9416 | 1011 | } |
90a236ce | 1012 | |
1013 | // Select events with a photon pt > min pt going to PHOS eta acceptance or exactly PHOS eta phi | |
1014 | if ((fProcess == kPyJets || fProcess == kPyDirectGamma) && fPhotonInCalo && (fCheckPHOSeta || fCheckPHOS)){ | |
1015 | ||
1016 | Bool_t okd = kFALSE; | |
1017 | ||
1018 | Int_t pdg = 22; | |
1019 | Int_t iphcand = -1; | |
1020 | for (i=0; i< np; i++) { | |
8507138f | 1021 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce | 1022 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
1023 | Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax | |
1024 | ||
1025 | if(iparticle->GetStatusCode() == 1 | |
1026 | && iparticle->GetPdgCode() == pdg | |
1027 | && iparticle->Pt() > fPhotonMinPt | |
04a26b0a | 1028 | && eta < fPHOSEta){ |
90a236ce | 1029 | |
1030 | // first check if the photon is in PHOS phi | |
1031 | if(IsInPHOS(phi,eta)){ | |
1032 | okd = kTRUE; | |
1033 | break; | |
1034 | } | |
1035 | if(fCheckPHOSeta) iphcand = i; // candiate photon to rotate in phi | |
1036 | ||
1037 | } | |
1038 | } | |
1039 | ||
1040 | if(!okd && iphcand != -1) // execute rotation in phi | |
1041 | RotatePhi(iphcand,okd); | |
1042 | ||
b3305127 | 1043 | if(!okd) { |
1044 | delete [] pParent; | |
1045 | return 0; | |
1046 | } | |
90a236ce | 1047 | } |
1048 | ||
7ce1321b | 1049 | if (fTriggerParticle) { |
1050 | Bool_t triggered = kFALSE; | |
1051 | for (i = 0; i < np; i++) { | |
8507138f | 1052 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
7ce1321b | 1053 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
38db0ee6 | 1054 | if (kf != fTriggerParticle) continue; |
7ce1321b | 1055 | if (iparticle->Pt() == 0.) continue; |
1056 | if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue; | |
1057 | triggered = kTRUE; | |
1058 | break; | |
1059 | } | |
234f6d32 | 1060 | if (!triggered) { |
1061 | delete [] pParent; | |
1062 | return 0; | |
1063 | } | |
7ce1321b | 1064 | } |
e0e89f40 | 1065 | |
1066 | ||
1067 | // Check if there is a ccbar or bbbar pair with at least one of the two | |
1068 | // in fYMin < y < fYMax | |
2f405d65 | 1069 | |
9dfe63b3 | 1070 | if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi || fProcess == kPyBeautyJets) { |
9ccc3d0e | 1071 | TParticle *partCheck; |
1072 | TParticle *mother; | |
e0e89f40 | 1073 | Bool_t theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE; |
9ccc3d0e | 1074 | Bool_t theChild=kFALSE; |
5d76923e | 1075 | Bool_t triggered=kFALSE; |
9ccc3d0e | 1076 | Float_t y; |
1077 | Int_t pdg,mpdg,mpdgUpperFamily; | |
e0e89f40 | 1078 | for(i=0; i<np; i++) { |
9ccc3d0e | 1079 | partCheck = (TParticle*)fParticles.At(i); |
1080 | pdg = partCheck->GetPdgCode(); | |
1081 | if(TMath::Abs(pdg) == fFlavorSelect) { // quark | |
1082 | if(pdg>0) { theQ=kTRUE; } else { theQbar=kTRUE; } | |
1083 | y = 0.5*TMath::Log((partCheck->Energy()+partCheck->Pz()+1.e-13)/ | |
1084 | (partCheck->Energy()-partCheck->Pz()+1.e-13)); | |
1085 | if(y>fYMin && y<fYMax) inYcut=kTRUE; | |
1086 | } | |
5d76923e | 1087 | if(fTriggerParticle) { |
1088 | if(TMath::Abs(pdg)==fTriggerParticle) triggered=kTRUE; | |
1089 | } | |
9ccc3d0e | 1090 | if(fCutOnChild && TMath::Abs(pdg) == fPdgCodeParticleforAcceptanceCut) { |
1091 | Int_t mi = partCheck->GetFirstMother() - 1; | |
1092 | if(mi<0) continue; | |
1093 | mother = (TParticle*)fParticles.At(mi); | |
1094 | mpdg=TMath::Abs(mother->GetPdgCode()); | |
75fde694 | 1095 | mpdgUpperFamily=(mpdg>1000 ? mpdg+1000 : mpdg+100); // keep e from c from b |
9ccc3d0e | 1096 | if ( ParentSelected(mpdg) || |
1097 | (fFlavorSelect==5 && ParentSelected(mpdgUpperFamily))) { | |
1098 | if (KinematicSelection(partCheck,1)) { | |
1099 | theChild=kTRUE; | |
1100 | } | |
1101 | } | |
1102 | } | |
e0e89f40 | 1103 | } |
9ccc3d0e | 1104 | if (!theQ || !theQbar || !inYcut) { // one of the c/b conditions not satisfied |
234f6d32 | 1105 | delete[] pParent; |
e0e89f40 | 1106 | return 0; |
1107 | } | |
9ccc3d0e | 1108 | if (fCutOnChild && !theChild) { // one of the child conditions not satisfied |
1109 | delete[] pParent; | |
1110 | return 0; | |
1111 | } | |
5d76923e | 1112 | if(fTriggerParticle && !triggered) { // particle requested is not produced |
1113 | delete[] pParent; | |
1114 | return 0; | |
1115 | } | |
9ccc3d0e | 1116 | |
e0e89f40 | 1117 | } |
aea21c57 | 1118 | |
0f6ee828 | 1119 | //Introducing child cuts in case kPyW, kPyZ, kPyMb, and kPyMbNonDiff |
f529e69b | 1120 | if ( (fProcess == kPyW || |
1121 | fProcess == kPyZ || | |
1122 | fProcess == kPyMbDefault || | |
1123 | fProcess == kPyMb || | |
6d2ec66d | 1124 | fProcess == kPyMbAtlasTuneMC09 || |
04081a91 | 1125 | fProcess == kPyMbWithDirectPhoton || |
f529e69b | 1126 | fProcess == kPyMbNonDiffr) |
0f6ee828 | 1127 | && (fCutOnChild == 1) ) { |
1128 | if ( !CheckKinematicsOnChild() ) { | |
234f6d32 | 1129 | delete[] pParent; |
0f6ee828 | 1130 | return 0; |
1131 | } | |
aea21c57 | 1132 | } |
1133 | ||
1134 | ||
f913ec4f | 1135 | for (i = 0; i < np; i++) { |
8d2cd130 | 1136 | Int_t trackIt = 0; |
8507138f | 1137 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 | 1138 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
1139 | Int_t ks = iparticle->GetStatusCode(); | |
1140 | Int_t km = iparticle->GetFirstMother(); | |
1141 | if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) || | |
1142 | (ks != 1) || | |
9dfe63b3 | 1143 | ((fProcess == kPyJets || fProcess == kPyBeautyJets) && ks == 21 && km == 0 && i>1)) { |
8d2cd130 | 1144 | nc++; |
1145 | if (ks == 1) trackIt = 1; | |
1146 | Int_t ipa = iparticle->GetFirstMother()-1; | |
1147 | ||
1148 | iparent = (ipa > -1) ? pParent[ipa] : -1; | |
1149 | ||
1150 | // | |
1151 | // store track information | |
1152 | p[0] = iparticle->Px(); | |
1153 | p[1] = iparticle->Py(); | |
1154 | p[2] = iparticle->Pz(); | |
a920faf9 | 1155 | p[3] = iparticle->Energy(); |
1406f599 | 1156 | |
a920faf9 | 1157 | |
2590ccf9 | 1158 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
1159 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] | |
1160 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] | |
1161 | ||
f913ec4f | 1162 | Float_t tof = fEventTime + kconv * iparticle->T(); |
a920faf9 | 1163 | |
1164 | PushTrack(fTrackIt*trackIt, iparent, kf, | |
1165 | p[0], p[1], p[2], p[3], | |
1166 | origin[0], origin[1], origin[2], tof, | |
1167 | polar[0], polar[1], polar[2], | |
1168 | kPPrimary, nt, 1., ks); | |
dbd64db6 | 1169 | fNprimaries++; |
8d2cd130 | 1170 | KeepTrack(nt); |
1171 | pParent[i] = nt; | |
f913ec4f | 1172 | SetHighWaterMark(nt); |
1173 | ||
8d2cd130 | 1174 | } // select particle |
1175 | } // particle loop | |
1176 | ||
234f6d32 | 1177 | delete[] pParent; |
e0e89f40 | 1178 | |
f913ec4f | 1179 | return 1; |
8d2cd130 | 1180 | } |
1181 | ||
1182 | ||
1183 | void AliGenPythia::FinishRun() | |
1184 | { | |
1185 | // Print x-section summary | |
1186 | fPythia->Pystat(1); | |
2779fc64 | 1187 | |
1188 | if (fNev > 0.) { | |
1189 | fQ /= fNev; | |
1190 | fX1 /= fNev; | |
1191 | fX2 /= fNev; | |
1192 | } | |
1193 | ||
8d2cd130 | 1194 | printf("\nTotal number of Pyevnt() calls %d\n", fTrialsRun); |
1195 | printf("\nMean Q, x1, x2: %f %f %f\n", fQ, fX1, fX2); | |
8d2cd130 | 1196 | } |
1197 | ||
7184e472 | 1198 | void AliGenPythia::AdjustWeights() const |
8d2cd130 | 1199 | { |
1200 | // Adjust the weights after generation of all events | |
1201 | // | |
e2bddf81 | 1202 | if (gAlice) { |
1203 | TParticle *part; | |
1204 | Int_t ntrack=gAlice->GetMCApp()->GetNtrack(); | |
1205 | for (Int_t i=0; i<ntrack; i++) { | |
1206 | part= gAlice->GetMCApp()->Particle(i); | |
1207 | part->SetWeight(part->GetWeight()*fKineBias); | |
1208 | } | |
8d2cd130 | 1209 | } |
1210 | } | |
1211 | ||
20e47f08 | 1212 | void AliGenPythia::SetNuclei(Int_t a1, Int_t a2, Int_t pdfset) |
8d2cd130 | 1213 | { |
1214 | // Treat protons as inside nuclei with mass numbers a1 and a2 | |
1d568bc2 | 1215 | |
1a626d4e | 1216 | fAProjectile = a1; |
1217 | fATarget = a2; | |
20e47f08 | 1218 | fNucPdf = pdfset; // 0 EKS98 1 EPS08 |
1d568bc2 | 1219 | fSetNuclei = kTRUE; |
8d2cd130 | 1220 | } |
1221 | ||
1222 | ||
1223 | void AliGenPythia::MakeHeader() | |
1224 | { | |
7184e472 | 1225 | // |
1226 | // Make header for the simulated event | |
1227 | // | |
183a5ca9 | 1228 | if (gAlice) { |
1229 | if (gAlice->GetEvNumber()>=fDebugEventFirst && | |
f913ec4f | 1230 | gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(2); |
183a5ca9 | 1231 | } |
1232 | ||
8d2cd130 | 1233 | // Builds the event header, to be called after each event |
e5c87a3d | 1234 | if (fHeader) delete fHeader; |
1235 | fHeader = new AliGenPythiaEventHeader("Pythia"); | |
8d2cd130 | 1236 | // |
1237 | // Event type | |
e5c87a3d | 1238 | ((AliGenPythiaEventHeader*) fHeader)->SetProcessType(fPythia->GetMSTI(1)); |
8d2cd130 | 1239 | // |
1240 | // Number of trials | |
e5c87a3d | 1241 | ((AliGenPythiaEventHeader*) fHeader)->SetTrials(fTrials); |
8d2cd130 | 1242 | // |
1243 | // Event Vertex | |
d25cfd65 | 1244 | fHeader->SetPrimaryVertex(fVertex); |
d07f0af2 | 1245 | fHeader->SetInteractionTime(fEventTime); |
dbd64db6 | 1246 | // |
1247 | // Number of primaries | |
1248 | fHeader->SetNProduced(fNprimaries); | |
8d2cd130 | 1249 | // |
1250 | // Jets that have triggered | |
f913ec4f | 1251 | |
9dfe63b3 | 1252 | //Need to store jets for b-jet studies too! |
2f405d65 | 1253 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) |
8d2cd130 | 1254 | { |
1255 | Int_t ntrig, njet; | |
1256 | Float_t jets[4][10]; | |
1257 | GetJets(njet, ntrig, jets); | |
9ff6c04c | 1258 | |
8d2cd130 | 1259 | |
1260 | for (Int_t i = 0; i < ntrig; i++) { | |
e5c87a3d | 1261 | ((AliGenPythiaEventHeader*) fHeader)->AddJet(jets[0][i], jets[1][i], jets[2][i], |
8d2cd130 | 1262 | jets[3][i]); |
1263 | } | |
1264 | } | |
5fa4b20b | 1265 | // |
1266 | // Copy relevant information from external header, if present. | |
1267 | // | |
1268 | Float_t uqJet[4]; | |
1269 | ||
1270 | if (fRL) { | |
1271 | AliGenPythiaEventHeader* exHeader = (AliGenPythiaEventHeader*) (fRL->GetHeader()->GenEventHeader()); | |
1272 | for (Int_t i = 0; i < exHeader->NTriggerJets(); i++) | |
1273 | { | |
1274 | printf("Adding Jet %d %d \n", i, exHeader->NTriggerJets()); | |
1275 | ||
1276 | ||
1277 | exHeader->TriggerJet(i, uqJet); | |
1278 | ((AliGenPythiaEventHeader*) fHeader)->AddUQJet(uqJet[0], uqJet[1], uqJet[2], uqJet[3]); | |
1279 | } | |
1280 | } | |
1281 | // | |
1282 | // Store quenching parameters | |
1283 | // | |
1284 | if (fQuench){ | |
b6262a45 | 1285 | Double_t z[4] = {0.}; |
1286 | Double_t xp = 0.; | |
1287 | Double_t yp = 0.; | |
1288 | ||
7c21f297 | 1289 | if (fQuench == 1) { |
1290 | // Pythia::Quench() | |
1291 | fPythia->GetQuenchingParameters(xp, yp, z); | |
1bab4b79 | 1292 | } else if (fQuench == 2){ |
7c21f297 | 1293 | // Pyquen |
1294 | Double_t r1 = PARIMP.rb1; | |
1295 | Double_t r2 = PARIMP.rb2; | |
1296 | Double_t b = PARIMP.b1; | |
1297 | Double_t r = 0.5 * TMath::Sqrt(2. * (r1 * r1 + r2 * r2) - b * b); | |
1298 | Double_t phi = PARIMP.psib1; | |
1299 | xp = r * TMath::Cos(phi); | |
1300 | yp = r * TMath::Sin(phi); | |
1301 | ||
1bab4b79 | 1302 | } else if (fQuench == 4) { |
1303 | // QPythia | |
5831e75f | 1304 | Double_t xy[2]; |
e9719084 | 1305 | Double_t i0i1[2]; |
1306 | AliFastGlauber::Instance()->GetSavedXY(xy); | |
1307 | AliFastGlauber::Instance()->GetSavedI0I1(i0i1); | |
5831e75f | 1308 | xp = xy[0]; |
1309 | yp = xy[1]; | |
e6fe9b82 | 1310 | ((AliGenPythiaEventHeader*) fHeader)->SetImpactParameter(fImpact); |
7c21f297 | 1311 | } |
1bab4b79 | 1312 | |
7c21f297 | 1313 | ((AliGenPythiaEventHeader*) fHeader)->SetXYJet(xp, yp); |
1314 | ((AliGenPythiaEventHeader*) fHeader)->SetZQuench(z); | |
1bab4b79 | 1315 | } |
beac474c | 1316 | // |
1317 | // Store pt^hard | |
1318 | ((AliGenPythiaEventHeader*) fHeader)->SetPtHard(fPythia->GetVINT(47)); | |
5fa4b20b | 1319 | // |
cf57b268 | 1320 | // Pass header |
5fa4b20b | 1321 | // |
cf57b268 | 1322 | AddHeader(fHeader); |
4c4eac97 | 1323 | fHeader = 0x0; |
8d2cd130 | 1324 | } |
cf57b268 | 1325 | |
c2fc9d31 | 1326 | Bool_t AliGenPythia::CheckTrigger(const TParticle* jet1, const TParticle* jet2) |
8d2cd130 | 1327 | { |
1328 | // Check the kinematic trigger condition | |
1329 | // | |
1330 | Double_t eta[2]; | |
1331 | eta[0] = jet1->Eta(); | |
1332 | eta[1] = jet2->Eta(); | |
1333 | Double_t phi[2]; | |
1334 | phi[0] = jet1->Phi(); | |
1335 | phi[1] = jet2->Phi(); | |
1336 | Int_t pdg[2]; | |
1337 | pdg[0] = jet1->GetPdgCode(); | |
1338 | pdg[1] = jet2->GetPdgCode(); | |
1339 | Bool_t triggered = kFALSE; | |
1340 | ||
2f405d65 | 1341 | if (fProcess == kPyJets || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) { |
8d2cd130 | 1342 | Int_t njets = 0; |
1343 | Int_t ntrig = 0; | |
1344 | Float_t jets[4][10]; | |
1345 | // | |
1346 | // Use Pythia clustering on parton level to determine jet axis | |
1347 | // | |
1348 | GetJets(njets, ntrig, jets); | |
1349 | ||
76d6ba9a | 1350 | if (ntrig || fEtMinJet == 0.) triggered = kTRUE; |
8d2cd130 | 1351 | // |
1352 | } else { | |
1353 | Int_t ij = 0; | |
1354 | Int_t ig = 1; | |
1355 | if (pdg[0] == kGamma) { | |
1356 | ij = 1; | |
1357 | ig = 0; | |
1358 | } | |
1359 | //Check eta range first... | |
1360 | if ((eta[ij] < fEtaMaxJet && eta[ij] > fEtaMinJet) && | |
1361 | (eta[ig] < fEtaMaxGamma && eta[ig] > fEtaMinGamma)) | |
1362 | { | |
1363 | //Eta is okay, now check phi range | |
1364 | if ((phi[ij] < fPhiMaxJet && phi[ij] > fPhiMinJet) && | |
1365 | (phi[ig] < fPhiMaxGamma && phi[ig] > fPhiMinGamma)) | |
1366 | { | |
1367 | triggered = kTRUE; | |
1368 | } | |
1369 | } | |
1370 | } | |
1371 | return triggered; | |
1372 | } | |
aea21c57 | 1373 | |
1374 | ||
aea21c57 | 1375 | |
7184e472 | 1376 | Bool_t AliGenPythia::CheckKinematicsOnChild(){ |
1377 | // | |
1378 | //Checking Kinematics on Child (status code 1, particle code ?, kin cuts | |
1379 | // | |
aea21c57 | 1380 | Bool_t checking = kFALSE; |
1381 | Int_t j, kcode, ks, km; | |
1382 | Int_t nPartAcc = 0; //number of particles in the acceptance range | |
1383 | Int_t numberOfAcceptedParticles = 1; | |
1384 | if (fNumberOfAcceptedParticles != 0) { numberOfAcceptedParticles = fNumberOfAcceptedParticles; } | |
8507138f | 1385 | Int_t npart = fParticles.GetEntriesFast(); |
aea21c57 | 1386 | |
0f6ee828 | 1387 | for (j = 0; j<npart; j++) { |
8507138f | 1388 | TParticle * jparticle = (TParticle *) fParticles.At(j); |
aea21c57 | 1389 | kcode = TMath::Abs( CheckPDGCode(jparticle->GetPdgCode()) ); |
1390 | ks = jparticle->GetStatusCode(); | |
1391 | km = jparticle->GetFirstMother(); | |
1392 | ||
1393 | if( (ks == 1) && (kcode == fPdgCodeParticleforAcceptanceCut) && (KinematicSelection(jparticle,1)) ){ | |
1394 | nPartAcc++; | |
1395 | } | |
0f6ee828 | 1396 | if( numberOfAcceptedParticles <= nPartAcc){ |
1397 | checking = kTRUE; | |
1398 | break; | |
1399 | } | |
aea21c57 | 1400 | } |
0f6ee828 | 1401 | |
aea21c57 | 1402 | return checking; |
aea21c57 | 1403 | } |
1404 | ||
5fa4b20b | 1405 | void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) |
8d2cd130 | 1406 | { |
1058d9df | 1407 | // |
1408 | // Load event into Pythia Common Block | |
1409 | // | |
1410 | ||
1411 | Int_t npart = stack -> GetNprimary(); | |
1412 | Int_t n0 = 0; | |
1413 | ||
1414 | if (!flag) { | |
1415 | (fPythia->GetPyjets())->N = npart; | |
1416 | } else { | |
1417 | n0 = (fPythia->GetPyjets())->N; | |
1418 | (fPythia->GetPyjets())->N = n0 + npart; | |
1419 | } | |
1420 | ||
1421 | ||
1422 | for (Int_t part = 0; part < npart; part++) { | |
1423 | TParticle *mPart = stack->Particle(part); | |
32d6ef7d | 1424 | |
1058d9df | 1425 | Int_t kf = mPart->GetPdgCode(); |
1426 | Int_t ks = mPart->GetStatusCode(); | |
1427 | Int_t idf = mPart->GetFirstDaughter(); | |
1428 | Int_t idl = mPart->GetLastDaughter(); | |
1429 | ||
1430 | if (reHadr) { | |
1431 | if (ks == 11 || ks == 12) { | |
1432 | ks -= 10; | |
1433 | idf = -1; | |
1434 | idl = -1; | |
1435 | } | |
32d6ef7d | 1436 | } |
1437 | ||
1058d9df | 1438 | Float_t px = mPart->Px(); |
1439 | Float_t py = mPart->Py(); | |
1440 | Float_t pz = mPart->Pz(); | |
1441 | Float_t e = mPart->Energy(); | |
1442 | Float_t m = mPart->GetCalcMass(); | |
32d6ef7d | 1443 | |
1058d9df | 1444 | |
1445 | (fPythia->GetPyjets())->P[0][part+n0] = px; | |
1446 | (fPythia->GetPyjets())->P[1][part+n0] = py; | |
1447 | (fPythia->GetPyjets())->P[2][part+n0] = pz; | |
1448 | (fPythia->GetPyjets())->P[3][part+n0] = e; | |
1449 | (fPythia->GetPyjets())->P[4][part+n0] = m; | |
1450 | ||
1451 | (fPythia->GetPyjets())->K[1][part+n0] = kf; | |
1452 | (fPythia->GetPyjets())->K[0][part+n0] = ks; | |
1453 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; | |
1454 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; | |
1455 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; | |
1456 | } | |
1457 | } | |
1458 | ||
c2fc9d31 | 1459 | void AliGenPythia::LoadEvent(const TObjArray* stack, Int_t flag, Int_t reHadr) |
1058d9df | 1460 | { |
1461 | // | |
1462 | // Load event into Pythia Common Block | |
1463 | // | |
1464 | ||
1465 | Int_t npart = stack -> GetEntries(); | |
1466 | Int_t n0 = 0; | |
1467 | ||
1468 | if (!flag) { | |
1469 | (fPythia->GetPyjets())->N = npart; | |
1470 | } else { | |
1471 | n0 = (fPythia->GetPyjets())->N; | |
1472 | (fPythia->GetPyjets())->N = n0 + npart; | |
1473 | } | |
1474 | ||
1475 | ||
1476 | for (Int_t part = 0; part < npart; part++) { | |
1477 | TParticle *mPart = dynamic_cast<TParticle *>(stack->At(part)); | |
92847124 | 1478 | if (!mPart) continue; |
1479 | ||
1058d9df | 1480 | Int_t kf = mPart->GetPdgCode(); |
1481 | Int_t ks = mPart->GetStatusCode(); | |
1482 | Int_t idf = mPart->GetFirstDaughter(); | |
1483 | Int_t idl = mPart->GetLastDaughter(); | |
1484 | ||
1485 | if (reHadr) { | |
92847124 | 1486 | if (ks == 11 || ks == 12) { |
1487 | ks -= 10; | |
1488 | idf = -1; | |
1489 | idl = -1; | |
1490 | } | |
8d2cd130 | 1491 | } |
1058d9df | 1492 | |
1493 | Float_t px = mPart->Px(); | |
1494 | Float_t py = mPart->Py(); | |
1495 | Float_t pz = mPart->Pz(); | |
1496 | Float_t e = mPart->Energy(); | |
1497 | Float_t m = mPart->GetCalcMass(); | |
1498 | ||
1499 | ||
1500 | (fPythia->GetPyjets())->P[0][part+n0] = px; | |
1501 | (fPythia->GetPyjets())->P[1][part+n0] = py; | |
1502 | (fPythia->GetPyjets())->P[2][part+n0] = pz; | |
1503 | (fPythia->GetPyjets())->P[3][part+n0] = e; | |
1504 | (fPythia->GetPyjets())->P[4][part+n0] = m; | |
1505 | ||
1506 | (fPythia->GetPyjets())->K[1][part+n0] = kf; | |
1507 | (fPythia->GetPyjets())->K[0][part+n0] = ks; | |
1508 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; | |
1509 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; | |
1510 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; | |
1511 | } | |
8d2cd130 | 1512 | } |
1513 | ||
5fa4b20b | 1514 | |
014a9521 | 1515 | void AliGenPythia::RecJetsUA1(Int_t& njets, Float_t jets [4][50]) |
8d2cd130 | 1516 | { |
1517 | // | |
1518 | // Calls the Pythia jet finding algorithm to find jets in the current event | |
1519 | // | |
1520 | // | |
8d2cd130 | 1521 | // |
1522 | // Save jets | |
1523 | Int_t n = fPythia->GetN(); | |
1524 | ||
1525 | // | |
1526 | // Run Jet Finder | |
1527 | fPythia->Pycell(njets); | |
1528 | Int_t i; | |
1529 | for (i = 0; i < njets; i++) { | |
1530 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; | |
1531 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; | |
1532 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; | |
1533 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; | |
1534 | ||
1535 | jets[0][i] = px; | |
1536 | jets[1][i] = py; | |
1537 | jets[2][i] = pz; | |
1538 | jets[3][i] = e; | |
1539 | } | |
1540 | } | |
1541 | ||
1542 | ||
1543 | ||
1544 | void AliGenPythia::GetJets(Int_t& nJets, Int_t& nJetsTrig, Float_t jets[4][10]) | |
1545 | { | |
1546 | // | |
1547 | // Calls the Pythia clustering algorithm to find jets in the current event | |
1548 | // | |
1549 | Int_t n = fPythia->GetN(); | |
1550 | nJets = 0; | |
1551 | nJetsTrig = 0; | |
1552 | if (fJetReconstruction == kCluster) { | |
1553 | // | |
1554 | // Configure cluster algorithm | |
1555 | // | |
1556 | fPythia->SetPARU(43, 2.); | |
1557 | fPythia->SetMSTU(41, 1); | |
1558 | // | |
1559 | // Call cluster algorithm | |
1560 | // | |
1561 | fPythia->Pyclus(nJets); | |
1562 | // | |
1563 | // Loading jets from common block | |
1564 | // | |
1565 | } else { | |
592f8307 | 1566 | |
8d2cd130 | 1567 | // |
1568 | // Run Jet Finder | |
1569 | fPythia->Pycell(nJets); | |
1570 | } | |
1571 | ||
1572 | Int_t i; | |
1573 | for (i = 0; i < nJets; i++) { | |
1574 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; | |
1575 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; | |
1576 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; | |
1577 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; | |
1578 | Float_t pt = TMath::Sqrt(px * px + py * py); | |
a920faf9 | 1579 | Float_t phi = TMath::Pi() + TMath::ATan2(-py, -px); |
8d2cd130 | 1580 | Float_t theta = TMath::ATan2(pt,pz); |
1581 | Float_t et = e * TMath::Sin(theta); | |
1582 | Float_t eta = -TMath::Log(TMath::Tan(theta / 2.)); | |
8d2cd130 | 1583 | if ( |
1584 | eta > fEtaMinJet && eta < fEtaMaxJet && | |
675eb105 | 1585 | phi > fPhiMinJet && phi < fPhiMaxJet && |
8d2cd130 | 1586 | et > fEtMinJet && et < fEtMaxJet |
1587 | ) | |
1588 | { | |
1589 | jets[0][nJetsTrig] = px; | |
1590 | jets[1][nJetsTrig] = py; | |
1591 | jets[2][nJetsTrig] = pz; | |
1592 | jets[3][nJetsTrig] = e; | |
1593 | nJetsTrig++; | |
5fa4b20b | 1594 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); |
8d2cd130 | 1595 | } else { |
1596 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); | |
1597 | } | |
1598 | } | |
1599 | } | |
1600 | ||
f913ec4f | 1601 | void AliGenPythia::GetSubEventTime() |
1602 | { | |
1603 | // Calculates time of the next subevent | |
9d7108a7 | 1604 | fEventTime = 0.; |
1605 | if (fEventsTime) { | |
1606 | TArrayF &array = *fEventsTime; | |
1607 | fEventTime = array[fCurSubEvent++]; | |
1608 | } | |
1609 | // printf(" Event time: %d %f %p",fCurSubEvent,fEventTime,fEventsTime); | |
1610 | return; | |
f913ec4f | 1611 | } |
8d2cd130 | 1612 | |
c2fc9d31 | 1613 | Bool_t AliGenPythia::IsInEMCAL(Float_t phi, Float_t eta) const |
ec2c406e | 1614 | { |
1615 | // Is particle in EMCAL acceptance? | |
ec2c406e | 1616 | // phi in degrees, etamin=-etamax |
9fd8e520 | 1617 | if(phi > fEMCALMinPhi && phi < fEMCALMaxPhi && |
1618 | eta < fEMCALEta ) | |
ec2c406e | 1619 | return kTRUE; |
1620 | else | |
1621 | return kFALSE; | |
1622 | } | |
1623 | ||
c2fc9d31 | 1624 | Bool_t AliGenPythia::IsInPHOS(Float_t phi, Float_t eta) const |
ec2c406e | 1625 | { |
1626 | // Is particle in PHOS acceptance? | |
1627 | // Acceptance slightly larger considered. | |
1628 | // phi in degrees, etamin=-etamax | |
9fd8e520 | 1629 | if(phi > fPHOSMinPhi && phi < fPHOSMaxPhi && |
1630 | eta < fPHOSEta ) | |
ec2c406e | 1631 | return kTRUE; |
1632 | else | |
1633 | return kFALSE; | |
1634 | } | |
1635 | ||
90a236ce | 1636 | void AliGenPythia::RotatePhi(Int_t iphcand, Bool_t& okdd) |
1637 | { | |
1638 | //calculate the new position random between fPHOSMinPhi and fPHOSMaxPhi | |
1639 | Double_t phiPHOSmin = TMath::Pi()*fPHOSMinPhi/180; | |
1640 | Double_t phiPHOSmax = TMath::Pi()*fPHOSMaxPhi/180; | |
1641 | Double_t phiPHOS = gRandom->Uniform(phiPHOSmin,phiPHOSmax); | |
1642 | ||
1643 | //calculate deltaphi | |
8507138f | 1644 | TParticle* ph = (TParticle *) fParticles.At(iphcand); |
90a236ce | 1645 | Double_t phphi = ph->Phi(); |
1646 | Double_t deltaphi = phiPHOS - phphi; | |
1647 | ||
1648 | ||
1649 | ||
1650 | //loop for all particles and produce the phi rotation | |
8507138f | 1651 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
90a236ce | 1652 | Double_t oldphi, newphi; |
777e69b0 | 1653 | Double_t newVx, newVy, r, vZ, time; |
1654 | Double_t newPx, newPy, pt, pz, e; | |
90a236ce | 1655 | for(Int_t i=0; i< np; i++) { |
8507138f | 1656 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce | 1657 | oldphi = iparticle->Phi(); |
1658 | newphi = oldphi + deltaphi; | |
1659 | if(newphi < 0) newphi = 2*TMath::Pi() + newphi; // correct angle | |
1660 | if(newphi > 2*TMath::Pi()) newphi = newphi - 2*TMath::Pi(); // correct angle | |
1661 | ||
777e69b0 | 1662 | r = iparticle->R(); |
1663 | newVx = r * TMath::Cos(newphi); | |
1664 | newVy = r * TMath::Sin(newphi); | |
1665 | vZ = iparticle->Vz(); // don't transform | |
90a236ce | 1666 | time = iparticle->T(); // don't transform |
1667 | ||
1668 | pt = iparticle->Pt(); | |
777e69b0 | 1669 | newPx = pt * TMath::Cos(newphi); |
1670 | newPy = pt * TMath::Sin(newphi); | |
1671 | pz = iparticle->Pz(); // don't transform | |
1672 | e = iparticle->Energy(); // don't transform | |
90a236ce | 1673 | |
1674 | // apply rotation | |
777e69b0 | 1675 | iparticle->SetProductionVertex(newVx, newVy, vZ, time); |
1676 | iparticle->SetMomentum(newPx, newPy, pz, e); | |
90a236ce | 1677 | |
1678 | } //end particle loop | |
1679 | ||
1680 | // now let's check that we put correctly the candidate photon in PHOS | |
1681 | Float_t phi = ph->Phi()*180./TMath::Pi(); //Convert to degrees | |
1682 | Float_t eta =TMath::Abs(ph->Eta());//in calos etamin=-etamax | |
1683 | if(IsInPHOS(phi,eta)) | |
1684 | okdd = kTRUE; | |
1685 | } | |
ec2c406e | 1686 | |
1687 | ||
589380c6 | 1688 |