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" |
c93255fe |
47 | #include "AliLog.h" |
e2d34d35 |
48 | #include "PyquenCommon.h" |
800be8b7 |
49 | #include "AliLog.h" |
8d2cd130 |
50 | |
014a9521 |
51 | ClassImp(AliGenPythia) |
8d2cd130 |
52 | |
e8a8adcd |
53 | |
54 | AliGenPythia::AliGenPythia(): |
55 | AliGenMC(), |
56 | fProcess(kPyCharm), |
efe3b1cd |
57 | fItune(-1), |
e8a8adcd |
58 | fStrucFunc(kCTEQ5L), |
e8a8adcd |
59 | fKineBias(0.), |
60 | fTrials(0), |
61 | fTrialsRun(0), |
62 | fQ(0.), |
63 | fX1(0.), |
64 | fX2(0.), |
65 | fEventTime(0.), |
66 | fInteractionRate(0.), |
67 | fTimeWindow(0.), |
68 | fCurSubEvent(0), |
69 | fEventsTime(0), |
70 | fNev(0), |
71 | fFlavorSelect(0), |
72 | fXsection(0.), |
73 | fPythia(0), |
74 | fPtHardMin(0.), |
75 | fPtHardMax(1.e4), |
76 | fYHardMin(-1.e10), |
77 | fYHardMax(1.e10), |
78 | fGinit(1), |
79 | fGfinal(1), |
80 | fHadronisation(1), |
03358a32 |
81 | fPatchOmegaDalitz(0), |
e8a8adcd |
82 | fNpartons(0), |
83 | fReadFromFile(0), |
84 | fQuench(0), |
cd07c39b |
85 | fQhat(0.), |
86 | fLength(0.), |
e6fe9b82 |
87 | fImpact(0.), |
e8a8adcd |
88 | fPtKick(1.), |
89 | fFullEvent(kTRUE), |
90 | fDecayer(new AliDecayerPythia()), |
91 | fDebugEventFirst(-1), |
92 | fDebugEventLast(-1), |
93 | fEtMinJet(0.), |
94 | fEtMaxJet(1.e4), |
95 | fEtaMinJet(-20.), |
96 | fEtaMaxJet(20.), |
97 | fPhiMinJet(0.), |
98 | fPhiMaxJet(2.* TMath::Pi()), |
99 | fJetReconstruction(kCell), |
100 | fEtaMinGamma(-20.), |
101 | fEtaMaxGamma(20.), |
102 | fPhiMinGamma(0.), |
103 | fPhiMaxGamma(2. * TMath::Pi()), |
104 | fPycellEtaMax(2.), |
105 | fPycellNEta(274), |
106 | fPycellNPhi(432), |
107 | fPycellThreshold(0.), |
108 | fPycellEtSeed(4.), |
109 | fPycellMinEtJet(10.), |
110 | fPycellMaxRadius(1.), |
111 | fStackFillOpt(kFlavorSelection), |
112 | fFeedDownOpt(kTRUE), |
113 | fFragmentation(kTRUE), |
114 | fSetNuclei(kFALSE), |
115 | fNewMIS(kFALSE), |
116 | fHFoff(kFALSE), |
20e47f08 |
117 | fNucPdf(0), |
e8a8adcd |
118 | fTriggerParticle(0), |
119 | fTriggerEta(0.9), |
700b9416 |
120 | fTriggerMultiplicity(0), |
121 | fTriggerMultiplicityEta(0), |
38112f3f |
122 | fTriggerMultiplicityPtMin(0), |
e8a8adcd |
123 | fCountMode(kCountAll), |
124 | fHeader(0), |
125 | fRL(0), |
777e69b0 |
126 | fkFileName(0), |
9fd8e520 |
127 | fFragPhotonInCalo(kFALSE), |
ec2c406e |
128 | fPi0InCalo(kFALSE) , |
90a236ce |
129 | fPhotonInCalo(kFALSE), |
9dfe63b3 |
130 | fEleInEMCAL(kFALSE), |
9fd8e520 |
131 | fCheckEMCAL(kFALSE), |
132 | fCheckPHOS(kFALSE), |
90a236ce |
133 | fCheckPHOSeta(kFALSE), |
9fd8e520 |
134 | fFragPhotonOrPi0MinPt(0), |
90a236ce |
135 | fPhotonMinPt(0), |
9dfe63b3 |
136 | fElectronMinPt(0), |
9fd8e520 |
137 | fPHOSMinPhi(219.), |
138 | fPHOSMaxPhi(321.), |
139 | fPHOSEta(0.13), |
140 | fEMCALMinPhi(79.), |
141 | fEMCALMaxPhi(191.), |
800be8b7 |
142 | fEMCALEta(0.71), |
143 | fkTuneForDiff(0), |
144 | fProcDiff(0) |
8d2cd130 |
145 | { |
146 | // Default Constructor |
e7c989e4 |
147 | fEnergyCMS = 5500.; |
7cdba479 |
148 | if (!AliPythiaRndm::GetPythiaRandom()) |
e8a8adcd |
149 | AliPythiaRndm::SetPythiaRandom(GetRandom()); |
8d2cd130 |
150 | } |
151 | |
152 | AliGenPythia::AliGenPythia(Int_t npart) |
e8a8adcd |
153 | :AliGenMC(npart), |
154 | fProcess(kPyCharm), |
efe3b1cd |
155 | fItune(-1), |
e8a8adcd |
156 | fStrucFunc(kCTEQ5L), |
e8a8adcd |
157 | fKineBias(0.), |
158 | fTrials(0), |
159 | fTrialsRun(0), |
160 | fQ(0.), |
161 | fX1(0.), |
162 | fX2(0.), |
163 | fEventTime(0.), |
164 | fInteractionRate(0.), |
165 | fTimeWindow(0.), |
166 | fCurSubEvent(0), |
167 | fEventsTime(0), |
168 | fNev(0), |
169 | fFlavorSelect(0), |
170 | fXsection(0.), |
171 | fPythia(0), |
172 | fPtHardMin(0.), |
173 | fPtHardMax(1.e4), |
174 | fYHardMin(-1.e10), |
175 | fYHardMax(1.e10), |
176 | fGinit(kTRUE), |
177 | fGfinal(kTRUE), |
178 | fHadronisation(kTRUE), |
03358a32 |
179 | fPatchOmegaDalitz(0), |
e8a8adcd |
180 | fNpartons(0), |
181 | fReadFromFile(kFALSE), |
182 | fQuench(kFALSE), |
cd07c39b |
183 | fQhat(0.), |
184 | fLength(0.), |
e6fe9b82 |
185 | fImpact(0.), |
e8a8adcd |
186 | fPtKick(1.), |
187 | fFullEvent(kTRUE), |
188 | fDecayer(new AliDecayerPythia()), |
189 | fDebugEventFirst(-1), |
190 | fDebugEventLast(-1), |
191 | fEtMinJet(0.), |
192 | fEtMaxJet(1.e4), |
193 | fEtaMinJet(-20.), |
194 | fEtaMaxJet(20.), |
195 | fPhiMinJet(0.), |
196 | fPhiMaxJet(2.* TMath::Pi()), |
197 | fJetReconstruction(kCell), |
198 | fEtaMinGamma(-20.), |
199 | fEtaMaxGamma(20.), |
200 | fPhiMinGamma(0.), |
201 | fPhiMaxGamma(2. * TMath::Pi()), |
202 | fPycellEtaMax(2.), |
203 | fPycellNEta(274), |
204 | fPycellNPhi(432), |
205 | fPycellThreshold(0.), |
206 | fPycellEtSeed(4.), |
207 | fPycellMinEtJet(10.), |
208 | fPycellMaxRadius(1.), |
209 | fStackFillOpt(kFlavorSelection), |
210 | fFeedDownOpt(kTRUE), |
211 | fFragmentation(kTRUE), |
212 | fSetNuclei(kFALSE), |
213 | fNewMIS(kFALSE), |
214 | fHFoff(kFALSE), |
20e47f08 |
215 | fNucPdf(0), |
e8a8adcd |
216 | fTriggerParticle(0), |
217 | fTriggerEta(0.9), |
700b9416 |
218 | fTriggerMultiplicity(0), |
219 | fTriggerMultiplicityEta(0), |
38112f3f |
220 | fTriggerMultiplicityPtMin(0), |
e8a8adcd |
221 | fCountMode(kCountAll), |
222 | fHeader(0), |
223 | fRL(0), |
777e69b0 |
224 | fkFileName(0), |
9fd8e520 |
225 | fFragPhotonInCalo(kFALSE), |
ec2c406e |
226 | fPi0InCalo(kFALSE) , |
90a236ce |
227 | fPhotonInCalo(kFALSE), |
9dfe63b3 |
228 | fEleInEMCAL(kFALSE), |
9fd8e520 |
229 | fCheckEMCAL(kFALSE), |
230 | fCheckPHOS(kFALSE), |
90a236ce |
231 | fCheckPHOSeta(kFALSE), |
9fd8e520 |
232 | fFragPhotonOrPi0MinPt(0), |
90a236ce |
233 | fPhotonMinPt(0), |
9dfe63b3 |
234 | fElectronMinPt(0), |
9fd8e520 |
235 | fPHOSMinPhi(219.), |
236 | fPHOSMaxPhi(321.), |
237 | fPHOSEta(0.13), |
238 | fEMCALMinPhi(79.), |
239 | fEMCALMaxPhi(191.), |
800be8b7 |
240 | fEMCALEta(0.71), |
241 | fkTuneForDiff(0), |
242 | fProcDiff(0) |
8d2cd130 |
243 | { |
244 | // default charm production at 5. 5 TeV |
245 | // semimuonic decay |
246 | // structure function GRVHO |
247 | // |
e7c989e4 |
248 | fEnergyCMS = 5500.; |
8d2cd130 |
249 | fName = "Pythia"; |
250 | fTitle= "Particle Generator using PYTHIA"; |
8d2cd130 |
251 | SetForceDecay(); |
8d2cd130 |
252 | // Set random number generator |
7cdba479 |
253 | if (!AliPythiaRndm::GetPythiaRandom()) |
254 | AliPythiaRndm::SetPythiaRandom(GetRandom()); |
76d6ba9a |
255 | } |
8d2cd130 |
256 | |
8d2cd130 |
257 | AliGenPythia::~AliGenPythia() |
258 | { |
259 | // Destructor |
9d7108a7 |
260 | if(fEventsTime) delete fEventsTime; |
261 | } |
262 | |
263 | void AliGenPythia::SetInteractionRate(Float_t rate,Float_t timewindow) |
264 | { |
265 | // Generate pileup using user specified rate |
266 | fInteractionRate = rate; |
267 | fTimeWindow = timewindow; |
268 | GeneratePileup(); |
269 | } |
270 | |
271 | void AliGenPythia::GeneratePileup() |
272 | { |
273 | // Generate sub events time for pileup |
274 | fEventsTime = 0; |
275 | if(fInteractionRate == 0.) { |
276 | Warning("GeneratePileup","Zero interaction specified. Skipping pileup generation.\n"); |
277 | return; |
278 | } |
279 | |
280 | Int_t npart = NumberParticles(); |
281 | if(npart < 0) { |
282 | Warning("GeneratePileup","Negative number of particles. Skipping pileup generation.\n"); |
283 | return; |
284 | } |
285 | |
286 | if(fEventsTime) delete fEventsTime; |
287 | fEventsTime = new TArrayF(npart); |
288 | TArrayF &array = *fEventsTime; |
289 | for(Int_t ipart = 0; ipart < npart; ipart++) |
290 | array[ipart] = 0.; |
291 | |
292 | Float_t eventtime = 0.; |
293 | while(1) |
294 | { |
295 | eventtime += (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); |
296 | if(eventtime > fTimeWindow) break; |
297 | array.Set(array.GetSize()+1); |
298 | array[array.GetSize()-1] = eventtime; |
299 | } |
300 | |
301 | eventtime = 0.; |
302 | while(1) |
303 | { |
304 | eventtime -= (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); |
305 | if(TMath::Abs(eventtime) > fTimeWindow) break; |
306 | array.Set(array.GetSize()+1); |
307 | array[array.GetSize()-1] = eventtime; |
308 | } |
309 | |
310 | SetNumberParticles(fEventsTime->GetSize()); |
8d2cd130 |
311 | } |
312 | |
592f8307 |
313 | void AliGenPythia::SetPycellParameters(Float_t etamax, Int_t neta, Int_t nphi, |
314 | Float_t thresh, Float_t etseed, Float_t minet, Float_t r) |
315 | { |
316 | // Set pycell parameters |
317 | fPycellEtaMax = etamax; |
318 | fPycellNEta = neta; |
319 | fPycellNPhi = nphi; |
320 | fPycellThreshold = thresh; |
321 | fPycellEtSeed = etseed; |
322 | fPycellMinEtJet = minet; |
323 | fPycellMaxRadius = r; |
324 | } |
325 | |
326 | |
327 | |
8d2cd130 |
328 | void AliGenPythia::SetEventListRange(Int_t eventFirst, Int_t eventLast) |
329 | { |
330 | // Set a range of event numbers, for which a table |
331 | // of generated particle will be printed |
332 | fDebugEventFirst = eventFirst; |
333 | fDebugEventLast = eventLast; |
334 | if (fDebugEventLast==-1) fDebugEventLast=fDebugEventFirst; |
335 | } |
336 | |
337 | void AliGenPythia::Init() |
338 | { |
339 | // Initialisation |
340 | |
341 | SetMC(AliPythia::Instance()); |
b88f5cea |
342 | fPythia=(AliPythia*) fMCEvGen; |
e2bddf81 |
343 | |
8d2cd130 |
344 | // |
345 | fParentWeight=1./Float_t(fNpart); |
346 | // |
8d2cd130 |
347 | |
348 | |
349 | fPythia->SetCKIN(3,fPtHardMin); |
350 | fPythia->SetCKIN(4,fPtHardMax); |
351 | fPythia->SetCKIN(7,fYHardMin); |
352 | fPythia->SetCKIN(8,fYHardMax); |
353 | |
20e47f08 |
354 | if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget, fNucPdf); |
8d2cd130 |
355 | // Fragmentation? |
356 | if (fFragmentation) { |
357 | fPythia->SetMSTP(111,1); |
358 | } else { |
359 | fPythia->SetMSTP(111,0); |
360 | } |
361 | |
362 | |
363 | // initial state radiation |
364 | fPythia->SetMSTP(61,fGinit); |
365 | // final state radiation |
366 | fPythia->SetMSTP(71,fGfinal); |
367 | // pt - kick |
368 | if (fPtKick > 0.) { |
369 | fPythia->SetMSTP(91,1); |
688950ef |
370 | fPythia->SetPARP(91,fPtKick); |
371 | fPythia->SetPARP(93, 4. * fPtKick); |
8d2cd130 |
372 | } else { |
373 | fPythia->SetMSTP(91,0); |
374 | } |
375 | |
5fa4b20b |
376 | |
377 | if (fReadFromFile) { |
777e69b0 |
378 | fRL = AliRunLoader::Open(fkFileName, "Partons"); |
5fa4b20b |
379 | fRL->LoadKinematics(); |
380 | fRL->LoadHeader(); |
381 | } else { |
382 | fRL = 0x0; |
383 | } |
fdea4387 |
384 | // |
efe3b1cd |
385 | fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc, fItune); |
fdea4387 |
386 | // Forward Paramters to the AliPythia object |
387 | fDecayer->SetForceDecay(fForceDecay); |
beac474c |
388 | // Switch off Heavy Flavors on request |
389 | if (fHFoff) { |
51387949 |
390 | // Maximum number of quark flavours used in pdf |
beac474c |
391 | fPythia->SetMSTP(58, 3); |
51387949 |
392 | // Maximum number of flavors that can be used in showers |
beac474c |
393 | fPythia->SetMSTJ(45, 3); |
51387949 |
394 | // Switch off g->QQbar splitting in decay table |
395 | ((AliDecayerPythia*) fDecayer)->HeavyFlavourOff(); |
beac474c |
396 | } |
fdea4387 |
397 | |
51387949 |
398 | fDecayer->Init(); |
399 | |
8d2cd130 |
400 | |
401 | // Parent and Children Selection |
402 | switch (fProcess) |
403 | { |
65f2626c |
404 | case kPyOldUEQ2ordered: |
405 | case kPyOldUEQ2ordered2: |
406 | case kPyOldPopcorn: |
407 | break; |
8d2cd130 |
408 | case kPyCharm: |
409 | case kPyCharmUnforced: |
adf4d898 |
410 | case kPyCharmPbPbMNR: |
aabc7187 |
411 | case kPyCharmpPbMNR: |
e0e89f40 |
412 | case kPyCharmppMNR: |
413 | case kPyCharmppMNRwmi: |
8d2cd130 |
414 | fParentSelect[0] = 411; |
415 | fParentSelect[1] = 421; |
416 | fParentSelect[2] = 431; |
417 | fParentSelect[3] = 4122; |
9ccc3d0e |
418 | fParentSelect[4] = 4232; |
419 | fParentSelect[5] = 4132; |
420 | fParentSelect[6] = 4332; |
8d2cd130 |
421 | fFlavorSelect = 4; |
422 | break; |
adf4d898 |
423 | case kPyD0PbPbMNR: |
424 | case kPyD0pPbMNR: |
425 | case kPyD0ppMNR: |
8d2cd130 |
426 | fParentSelect[0] = 421; |
427 | fFlavorSelect = 4; |
428 | break; |
90d7b703 |
429 | case kPyDPlusPbPbMNR: |
430 | case kPyDPluspPbMNR: |
431 | case kPyDPlusppMNR: |
432 | fParentSelect[0] = 411; |
433 | fFlavorSelect = 4; |
434 | break; |
e0e89f40 |
435 | case kPyDPlusStrangePbPbMNR: |
436 | case kPyDPlusStrangepPbMNR: |
437 | case kPyDPlusStrangeppMNR: |
438 | fParentSelect[0] = 431; |
439 | fFlavorSelect = 4; |
440 | break; |
68504d42 |
441 | case kPyLambdacppMNR: |
442 | fParentSelect[0] = 4122; |
443 | fFlavorSelect = 4; |
444 | break; |
8d2cd130 |
445 | case kPyBeauty: |
9dfe63b3 |
446 | case kPyBeautyJets: |
adf4d898 |
447 | case kPyBeautyPbPbMNR: |
448 | case kPyBeautypPbMNR: |
449 | case kPyBeautyppMNR: |
e0e89f40 |
450 | case kPyBeautyppMNRwmi: |
8d2cd130 |
451 | fParentSelect[0]= 511; |
452 | fParentSelect[1]= 521; |
453 | fParentSelect[2]= 531; |
454 | fParentSelect[3]= 5122; |
455 | fParentSelect[4]= 5132; |
456 | fParentSelect[5]= 5232; |
457 | fParentSelect[6]= 5332; |
458 | fFlavorSelect = 5; |
459 | break; |
460 | case kPyBeautyUnforced: |
461 | fParentSelect[0] = 511; |
462 | fParentSelect[1] = 521; |
463 | fParentSelect[2] = 531; |
464 | fParentSelect[3] = 5122; |
465 | fParentSelect[4] = 5132; |
466 | fParentSelect[5] = 5232; |
467 | fParentSelect[6] = 5332; |
468 | fFlavorSelect = 5; |
469 | break; |
470 | case kPyJpsiChi: |
471 | case kPyJpsi: |
472 | fParentSelect[0] = 443; |
473 | break; |
f529e69b |
474 | case kPyMbDefault: |
0bd3d7c5 |
475 | case kPyMbAtlasTuneMC09: |
8d2cd130 |
476 | case kPyMb: |
04081a91 |
477 | case kPyMbWithDirectPhoton: |
8d2cd130 |
478 | case kPyMbNonDiffr: |
d7de4a67 |
479 | case kPyMbMSEL1: |
8d2cd130 |
480 | case kPyJets: |
481 | case kPyDirectGamma: |
e33acb67 |
482 | case kPyLhwgMb: |
8d2cd130 |
483 | break; |
589380c6 |
484 | case kPyW: |
0f6ee828 |
485 | case kPyZ: |
589380c6 |
486 | break; |
8d2cd130 |
487 | } |
488 | // |
592f8307 |
489 | // |
490 | // JetFinder for Trigger |
491 | // |
492 | // Configure detector (EMCAL like) |
493 | // |
d7de4a67 |
494 | fPythia->SetPARU(51, fPycellEtaMax); |
495 | fPythia->SetMSTU(51, fPycellNEta); |
496 | fPythia->SetMSTU(52, fPycellNPhi); |
592f8307 |
497 | // |
498 | // Configure Jet Finder |
499 | // |
d7de4a67 |
500 | fPythia->SetPARU(58, fPycellThreshold); |
501 | fPythia->SetPARU(52, fPycellEtSeed); |
502 | fPythia->SetPARU(53, fPycellMinEtJet); |
503 | fPythia->SetPARU(54, fPycellMaxRadius); |
504 | fPythia->SetMSTU(54, 2); |
592f8307 |
505 | // |
8d2cd130 |
506 | // This counts the total number of calls to Pyevnt() per run. |
507 | fTrialsRun = 0; |
508 | fQ = 0.; |
509 | fX1 = 0.; |
510 | fX2 = 0.; |
511 | fNev = 0 ; |
512 | // |
1d568bc2 |
513 | // |
514 | // |
8d2cd130 |
515 | AliGenMC::Init(); |
1d568bc2 |
516 | // |
517 | // |
518 | // |
519 | if (fSetNuclei) { |
520 | fDyBoost = 0; |
521 | Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n"); |
522 | } |
d7de4a67 |
523 | |
cd07c39b |
524 | fPythia->SetPARJ(200, 0.0); |
525 | fPythia->SetPARJ(199, 0.0); |
526 | fPythia->SetPARJ(198, 0.0); |
527 | fPythia->SetPARJ(197, 0.0); |
528 | |
529 | if (fQuench == 1) { |
5fa4b20b |
530 | fPythia->InitQuenching(0., 0.1, 0.6e6, 0); |
32d6ef7d |
531 | } |
3a709cfa |
532 | |
b976f7d8 |
533 | if (fQuench == 3) { |
534 | // Nestor's change of the splittings |
535 | fPythia->SetPARJ(200, 0.8); |
536 | fPythia->SetMSTJ(41, 1); // QCD radiation only |
537 | fPythia->SetMSTJ(42, 2); // angular ordering |
538 | fPythia->SetMSTJ(44, 2); // option to run alpha_s |
539 | fPythia->SetMSTJ(47, 0); // No correction back to hard scattering element |
540 | fPythia->SetMSTJ(50, 0); // No coherence in first branching |
541 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers |
cd07c39b |
542 | } else if (fQuench == 4) { |
543 | // Armesto-Cunqueiro-Salgado change of the splittings. |
544 | AliFastGlauber* glauber = AliFastGlauber::Instance(); |
545 | glauber->Init(2); |
546 | //read and store transverse almonds corresponding to differnt |
547 | //impact parameters. |
cd07c39b |
548 | glauber->SetCentralityClass(0.,0.1); |
549 | fPythia->SetPARJ(200, 1.); |
550 | fPythia->SetPARJ(198, fQhat); |
551 | fPythia->SetPARJ(199, fLength); |
cd07c39b |
552 | fPythia->SetMSTJ(42, 2); // angular ordering |
553 | fPythia->SetMSTJ(44, 2); // option to run alpha_s |
cd07c39b |
554 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers |
b976f7d8 |
555 | } |
8d2cd130 |
556 | } |
557 | |
558 | void AliGenPythia::Generate() |
559 | { |
560 | // Generate one event |
19ef8cf0 |
561 | if (!fPythia) fPythia=(AliPythia*) fMCEvGen; |
8d2cd130 |
562 | fDecayer->ForceDecay(); |
563 | |
13cca24a |
564 | Double_t polar[3] = {0,0,0}; |
565 | Double_t origin[3] = {0,0,0}; |
566 | Double_t p[4]; |
8d2cd130 |
567 | // converts from mm/c to s |
568 | const Float_t kconv=0.001/2.999792458e8; |
569 | // |
570 | Int_t nt=0; |
571 | Int_t jev=0; |
572 | Int_t j, kf; |
573 | fTrials=0; |
f913ec4f |
574 | fEventTime = 0.; |
575 | |
2590ccf9 |
576 | |
8d2cd130 |
577 | |
578 | // Set collision vertex position |
2590ccf9 |
579 | if (fVertexSmear == kPerEvent) Vertex(); |
580 | |
8d2cd130 |
581 | // event loop |
582 | while(1) |
583 | { |
32d6ef7d |
584 | // |
5fa4b20b |
585 | // Produce event |
32d6ef7d |
586 | // |
32d6ef7d |
587 | // |
5fa4b20b |
588 | // Switch hadronisation off |
589 | // |
590 | fPythia->SetMSTJ(1, 0); |
cd07c39b |
591 | |
592 | if (fQuench ==4){ |
593 | Double_t bimp; |
594 | // Quenching comes through medium-modified splitting functions. |
595 | AliFastGlauber::Instance()->GetRandomBHard(bimp); |
e6fe9b82 |
596 | fPythia->SetPARJ(197, bimp); |
597 | fImpact = bimp; |
6c43eccb |
598 | fPythia->Qpygin0(); |
cd07c39b |
599 | } |
32d6ef7d |
600 | // |
5fa4b20b |
601 | // Either produce new event or read partons from file |
602 | // |
603 | if (!fReadFromFile) { |
beac474c |
604 | if (!fNewMIS) { |
605 | fPythia->Pyevnt(); |
606 | } else { |
607 | fPythia->Pyevnw(); |
608 | } |
5fa4b20b |
609 | fNpartons = fPythia->GetN(); |
610 | } else { |
33c3c91a |
611 | printf("Loading Event %d\n",AliRunLoader::Instance()->GetEventNumber()); |
612 | fRL->GetEvent(AliRunLoader::Instance()->GetEventNumber()); |
5fa4b20b |
613 | fPythia->SetN(0); |
614 | LoadEvent(fRL->Stack(), 0 , 1); |
615 | fPythia->Pyedit(21); |
616 | } |
617 | |
32d6ef7d |
618 | // |
619 | // Run quenching routine |
620 | // |
5fa4b20b |
621 | if (fQuench == 1) { |
622 | fPythia->Quench(); |
623 | } else if (fQuench == 2){ |
624 | fPythia->Pyquen(208., 0, 0.); |
b976f7d8 |
625 | } else if (fQuench == 3) { |
626 | // Quenching is via multiplicative correction of the splittings |
5fa4b20b |
627 | } |
b976f7d8 |
628 | |
32d6ef7d |
629 | // |
5fa4b20b |
630 | // Switch hadronisation on |
32d6ef7d |
631 | // |
20e47f08 |
632 | if (fHadronisation) { |
633 | fPythia->SetMSTJ(1, 1); |
5fa4b20b |
634 | // |
635 | // .. and perform hadronisation |
aea21c57 |
636 | // printf("Calling hadronisation %d\n", fPythia->GetN()); |
03358a32 |
637 | |
638 | if (fPatchOmegaDalitz) { |
639 | fPythia->SetMDCY(fPythia->Pycomp(111) ,1, 0); |
640 | fPythia->Pyexec(); |
641 | fPythia->DalitzDecays(); |
642 | fPythia->SetMDCY(fPythia->Pycomp(111) ,1, 1); |
643 | } |
644 | fPythia->Pyexec(); |
20e47f08 |
645 | } |
8d2cd130 |
646 | fTrials++; |
8507138f |
647 | fPythia->ImportParticles(&fParticles,"All"); |
03358a32 |
648 | |
df275cfa |
649 | if (TMath::Abs(fDyBoost) > 1.e-4) Boost(); |
e1cf8975 |
650 | if(TMath::Abs(fXingAngleY) > 1.e-10) BeamCrossAngle(); |
f64640b5 |
651 | |
8d2cd130 |
652 | // |
653 | // |
654 | // |
655 | Int_t i; |
656 | |
dbd64db6 |
657 | fNprimaries = 0; |
8507138f |
658 | Int_t np = fParticles.GetEntriesFast(); |
5fa4b20b |
659 | |
7c21f297 |
660 | if (np == 0) continue; |
8d2cd130 |
661 | // |
2590ccf9 |
662 | |
8d2cd130 |
663 | // |
664 | Int_t* pParent = new Int_t[np]; |
665 | Int_t* pSelected = new Int_t[np]; |
666 | Int_t* trackIt = new Int_t[np]; |
5fa4b20b |
667 | for (i = 0; i < np; i++) { |
8d2cd130 |
668 | pParent[i] = -1; |
669 | pSelected[i] = 0; |
670 | trackIt[i] = 0; |
671 | } |
672 | |
673 | Int_t nc = 0; // Total n. of selected particles |
674 | Int_t nParents = 0; // Selected parents |
675 | Int_t nTkbles = 0; // Trackable particles |
f529e69b |
676 | if (fProcess != kPyMbDefault && |
677 | fProcess != kPyMb && |
6d2ec66d |
678 | fProcess != kPyMbAtlasTuneMC09 && |
04081a91 |
679 | fProcess != kPyMbWithDirectPhoton && |
f529e69b |
680 | fProcess != kPyJets && |
8d2cd130 |
681 | fProcess != kPyDirectGamma && |
589380c6 |
682 | fProcess != kPyMbNonDiffr && |
d7de4a67 |
683 | fProcess != kPyMbMSEL1 && |
f529e69b |
684 | fProcess != kPyW && |
685 | fProcess != kPyZ && |
686 | fProcess != kPyCharmppMNRwmi && |
9dfe63b3 |
687 | fProcess != kPyBeautyppMNRwmi && |
688 | fProcess != kPyBeautyJets) { |
8d2cd130 |
689 | |
5fa4b20b |
690 | for (i = 0; i < np; i++) { |
8507138f |
691 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 |
692 | Int_t ks = iparticle->GetStatusCode(); |
693 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
694 | // No initial state partons |
695 | if (ks==21) continue; |
696 | // |
697 | // Heavy Flavor Selection |
698 | // |
699 | // quark ? |
700 | kf = TMath::Abs(kf); |
701 | Int_t kfl = kf; |
9ff6c04c |
702 | // Resonance |
f913ec4f |
703 | |
9ff6c04c |
704 | if (kfl > 100000) kfl %= 100000; |
183a5ca9 |
705 | if (kfl > 10000) kfl %= 10000; |
8d2cd130 |
706 | // meson ? |
707 | if (kfl > 10) kfl/=100; |
708 | // baryon |
709 | if (kfl > 10) kfl/=10; |
8d2cd130 |
710 | Int_t ipa = iparticle->GetFirstMother()-1; |
711 | Int_t kfMo = 0; |
f913ec4f |
712 | // |
713 | // Establish mother daughter relation between heavy quarks and mesons |
714 | // |
715 | if (kf >= fFlavorSelect && kf <= 6) { |
716 | Int_t idau = iparticle->GetFirstDaughter() - 1; |
717 | if (idau > -1) { |
8507138f |
718 | TParticle* daughter = (TParticle *) fParticles.At(idau); |
f913ec4f |
719 | Int_t pdgD = daughter->GetPdgCode(); |
720 | if (pdgD == 91 || pdgD == 92) { |
721 | Int_t jmin = daughter->GetFirstDaughter() - 1; |
722 | Int_t jmax = daughter->GetLastDaughter() - 1; |
2ab330c9 |
723 | for (Int_t jp = jmin; jp <= jmax; jp++) |
724 | ((TParticle *) fParticles.At(jp))->SetFirstMother(i+1); |
f913ec4f |
725 | } // is string or cluster |
726 | } // has daughter |
727 | } // heavy quark |
8d2cd130 |
728 | |
f913ec4f |
729 | |
8d2cd130 |
730 | if (ipa > -1) { |
8507138f |
731 | TParticle * mother = (TParticle *) fParticles.At(ipa); |
8d2cd130 |
732 | kfMo = TMath::Abs(mother->GetPdgCode()); |
733 | } |
f913ec4f |
734 | |
8d2cd130 |
735 | // What to keep in Stack? |
736 | Bool_t flavorOK = kFALSE; |
737 | Bool_t selectOK = kFALSE; |
738 | if (fFeedDownOpt) { |
32d6ef7d |
739 | if (kfl >= fFlavorSelect) flavorOK = kTRUE; |
8d2cd130 |
740 | } else { |
32d6ef7d |
741 | if (kfl > fFlavorSelect) { |
742 | nc = -1; |
743 | break; |
744 | } |
745 | if (kfl == fFlavorSelect) flavorOK = kTRUE; |
8d2cd130 |
746 | } |
747 | switch (fStackFillOpt) { |
748 | case kFlavorSelection: |
32d6ef7d |
749 | selectOK = kTRUE; |
750 | break; |
8d2cd130 |
751 | case kParentSelection: |
32d6ef7d |
752 | if (ParentSelected(kf) || kf <= 10) selectOK = kTRUE; |
753 | break; |
8d2cd130 |
754 | } |
755 | if (flavorOK && selectOK) { |
756 | // |
757 | // Heavy flavor hadron or quark |
758 | // |
759 | // Kinematic seletion on final state heavy flavor mesons |
760 | if (ParentSelected(kf) && !KinematicSelection(iparticle, 0)) |
761 | { |
9ff6c04c |
762 | continue; |
8d2cd130 |
763 | } |
764 | pSelected[i] = 1; |
765 | if (ParentSelected(kf)) ++nParents; // Update parent count |
766 | // printf("\n particle (HF) %d %d %d", i, pSelected[i], kf); |
767 | } else { |
768 | // Kinematic seletion on decay products |
769 | if (fCutOnChild && ParentSelected(kfMo) && ChildSelected(kf) |
9ff6c04c |
770 | && !KinematicSelection(iparticle, 1)) |
8d2cd130 |
771 | { |
9ff6c04c |
772 | continue; |
8d2cd130 |
773 | } |
774 | // |
775 | // Decay products |
776 | // Select if mother was selected and is not tracked |
777 | |
778 | if (pSelected[ipa] && |
779 | !trackIt[ipa] && // mother will be tracked ? |
780 | kfMo != 5 && // mother is b-quark, don't store fragments |
781 | kfMo != 4 && // mother is c-quark, don't store fragments |
782 | kf != 92) // don't store string |
783 | { |
784 | // |
785 | // Semi-stable or de-selected: diselect decay products: |
786 | // |
787 | // |
788 | if (pSelected[i] == -1 || fDecayer->GetLifetime(kf) > fMaxLifeTime) |
789 | { |
790 | Int_t ipF = iparticle->GetFirstDaughter(); |
791 | Int_t ipL = iparticle->GetLastDaughter(); |
792 | if (ipF > 0) for (j = ipF-1; j < ipL; j++) pSelected[j] = -1; |
793 | } |
794 | // printf("\n particle (decay) %d %d %d", i, pSelected[i], kf); |
795 | pSelected[i] = (pSelected[i] == -1) ? 0 : 1; |
796 | } |
797 | } |
798 | if (pSelected[i] == -1) pSelected[i] = 0; |
799 | if (!pSelected[i]) continue; |
800 | // Count quarks only if you did not include fragmentation |
801 | if (fFragmentation && kf <= 10) continue; |
9ff6c04c |
802 | |
8d2cd130 |
803 | nc++; |
804 | // Decision on tracking |
805 | trackIt[i] = 0; |
806 | // |
807 | // Track final state particle |
808 | if (ks == 1) trackIt[i] = 1; |
809 | // Track semi-stable particles |
d25cfd65 |
810 | if ((ks == 1) || (fDecayer->GetLifetime(kf) > fMaxLifeTime)) trackIt[i] = 1; |
8d2cd130 |
811 | // Track particles selected by process if undecayed. |
812 | if (fForceDecay == kNoDecay) { |
813 | if (ParentSelected(kf)) trackIt[i] = 1; |
814 | } else { |
815 | if (ParentSelected(kf)) trackIt[i] = 0; |
816 | } |
817 | if (trackIt[i] == 1) ++nTkbles; // Update trackable counter |
818 | // |
819 | // |
820 | |
821 | } // particle selection loop |
822 | if (nc > 0) { |
823 | for (i = 0; i<np; i++) { |
824 | if (!pSelected[i]) continue; |
8507138f |
825 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 |
826 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
827 | Int_t ks = iparticle->GetStatusCode(); |
828 | p[0] = iparticle->Px(); |
829 | p[1] = iparticle->Py(); |
830 | p[2] = iparticle->Pz(); |
a920faf9 |
831 | p[3] = iparticle->Energy(); |
832 | |
2590ccf9 |
833 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
834 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] |
835 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] |
836 | |
8d2cd130 |
837 | Float_t tof = kconv*iparticle->T(); |
838 | Int_t ipa = iparticle->GetFirstMother()-1; |
839 | Int_t iparent = (ipa > -1) ? pParent[ipa] : -1; |
a920faf9 |
840 | |
841 | PushTrack(fTrackIt*trackIt[i], iparent, kf, |
842 | p[0], p[1], p[2], p[3], |
843 | origin[0], origin[1], origin[2], tof, |
844 | polar[0], polar[1], polar[2], |
845 | kPPrimary, nt, 1., ks); |
8d2cd130 |
846 | pParent[i] = nt; |
dbd64db6 |
847 | KeepTrack(nt); |
848 | fNprimaries++; |
642f15cf |
849 | } // PushTrack loop |
8d2cd130 |
850 | } |
851 | } else { |
852 | nc = GenerateMB(); |
853 | } // mb ? |
f913ec4f |
854 | |
855 | GetSubEventTime(); |
8d2cd130 |
856 | |
234f6d32 |
857 | delete[] pParent; |
858 | delete[] pSelected; |
859 | delete[] trackIt; |
8d2cd130 |
860 | |
861 | if (nc > 0) { |
862 | switch (fCountMode) { |
863 | case kCountAll: |
864 | // printf(" Count all \n"); |
865 | jev += nc; |
866 | break; |
867 | case kCountParents: |
868 | // printf(" Count parents \n"); |
869 | jev += nParents; |
870 | break; |
871 | case kCountTrackables: |
872 | // printf(" Count trackable \n"); |
873 | jev += nTkbles; |
874 | break; |
875 | } |
876 | if (jev >= fNpart || fNpart == -1) { |
877 | fKineBias=Float_t(fNpart)/Float_t(fTrials); |
e0e89f40 |
878 | |
8d2cd130 |
879 | fQ += fPythia->GetVINT(51); |
880 | fX1 += fPythia->GetVINT(41); |
881 | fX2 += fPythia->GetVINT(42); |
882 | fTrialsRun += fTrials; |
883 | fNev++; |
884 | MakeHeader(); |
885 | break; |
886 | } |
887 | } |
888 | } // event loop |
889 | SetHighWaterMark(nt); |
890 | // adjust weight due to kinematic selection |
b88f5cea |
891 | // AdjustWeights(); |
8d2cd130 |
892 | // get cross-section |
893 | fXsection=fPythia->GetPARI(1); |
894 | } |
895 | |
896 | Int_t AliGenPythia::GenerateMB() |
897 | { |
898 | // |
899 | // Min Bias selection and other global selections |
900 | // |
901 | Int_t i, kf, nt, iparent; |
902 | Int_t nc = 0; |
13cca24a |
903 | Double_t p[4]; |
904 | Double_t polar[3] = {0,0,0}; |
905 | Double_t origin[3] = {0,0,0}; |
8d2cd130 |
906 | // converts from mm/c to s |
907 | const Float_t kconv=0.001/2.999792458e8; |
908 | |
e0e89f40 |
909 | |
910 | |
8507138f |
911 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
aea21c57 |
912 | |
5fa4b20b |
913 | |
e0e89f40 |
914 | |
8d2cd130 |
915 | Int_t* pParent = new Int_t[np]; |
916 | for (i=0; i< np; i++) pParent[i] = -1; |
2f405d65 |
917 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) { |
8507138f |
918 | TParticle* jet1 = (TParticle *) fParticles.At(6); |
919 | TParticle* jet2 = (TParticle *) fParticles.At(7); |
234f6d32 |
920 | if (!CheckTrigger(jet1, jet2)) { |
921 | delete [] pParent; |
922 | return 0; |
923 | } |
8d2cd130 |
924 | } |
e0e89f40 |
925 | |
9fd8e520 |
926 | // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL |
927 | if (fProcess == kPyJets && (fFragPhotonInCalo || fPi0InCalo) ) { |
ec2c406e |
928 | |
929 | Bool_t ok = kFALSE; |
930 | |
931 | Int_t pdg = 0; |
9fd8e520 |
932 | if (fFragPhotonInCalo) pdg = 22 ; // Photon |
6d2ec66d |
933 | else if (fPi0InCalo) pdg = 111 ; // Pi0 |
ec2c406e |
934 | |
935 | for (i=0; i< np; i++) { |
8507138f |
936 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
ec2c406e |
937 | if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && |
9fd8e520 |
938 | iparticle->Pt() > fFragPhotonOrPi0MinPt){ |
562cbbcf |
939 | Int_t imother = iparticle->GetFirstMother() - 1; |
8507138f |
940 | TParticle* pmother = (TParticle *) fParticles.At(imother); |
9fd8e520 |
941 | if(pdg == 111 || |
82e0bdff |
942 | (pdg == 22 && pmother->GetStatusCode() != 11)) //No photon from hadron decay |
9fd8e520 |
943 | { |
944 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
82e0bdff |
945 | Float_t eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax |
9fd8e520 |
946 | if((fCheckEMCAL && IsInEMCAL(phi,eta)) || |
947 | (fCheckPHOS && IsInPHOS(phi,eta)) ) |
948 | ok =kTRUE; |
949 | } |
ec2c406e |
950 | } |
951 | } |
1ee02229 |
952 | if(!ok) { |
953 | delete[] pParent; |
954 | return 0; |
955 | } |
ec2c406e |
956 | } |
9dfe63b3 |
957 | |
958 | // Select beauty jets with electron in EMCAL |
959 | if (fProcess == kPyBeautyJets && fEleInEMCAL) { |
960 | |
961 | Bool_t ok = kFALSE; |
962 | |
963 | Int_t pdg = 11; //electron |
964 | |
70574ff8 |
965 | Float_t pt = 0.; |
966 | Float_t eta = 0.; |
967 | Float_t phi = 0.; |
9dfe63b3 |
968 | for (i=0; i< np; i++) { |
969 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
970 | if(iparticle->GetStatusCode()==1 && TMath::Abs(iparticle->GetPdgCode())==pdg && |
971 | iparticle->Pt() > fElectronMinPt){ |
972 | pt = iparticle->Pt(); |
973 | phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
974 | eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax |
975 | if(IsInEMCAL(phi,eta)) |
976 | ok =kTRUE; |
977 | } |
978 | } |
92847124 |
979 | if(!ok) { |
980 | delete[] pParent; |
9dfe63b3 |
981 | return 0; |
92847124 |
982 | } |
983 | |
9dfe63b3 |
984 | AliDebug(5,Form("Found an electron jet (pt,eta,phi) = (%f,%f,%f)",pt,eta,phi)); |
985 | } |
800be8b7 |
986 | // Check for diffraction |
987 | if(fkTuneForDiff) { |
988 | if(fItune==320) { |
989 | if(!CheckDiffraction()) { |
990 | delete [] pParent; |
991 | return 0; |
992 | } |
993 | } |
994 | } |
995 | |
700b9416 |
996 | // Check for minimum multiplicity |
997 | if (fTriggerMultiplicity > 0) { |
998 | Int_t multiplicity = 0; |
999 | for (i = 0; i < np; i++) { |
8507138f |
1000 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
700b9416 |
1001 | |
1002 | Int_t statusCode = iparticle->GetStatusCode(); |
1003 | |
1004 | // Initial state particle |
e296848e |
1005 | if (statusCode != 1) |
700b9416 |
1006 | continue; |
38112f3f |
1007 | // eta cut |
700b9416 |
1008 | if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta) |
1009 | continue; |
38112f3f |
1010 | // pt cut |
1011 | if (iparticle->Pt() < fTriggerMultiplicityPtMin) |
1012 | continue; |
1013 | |
700b9416 |
1014 | TParticlePDG* pdgPart = iparticle->GetPDG(); |
1015 | if (pdgPart && pdgPart->Charge() == 0) |
1016 | continue; |
1017 | |
1018 | ++multiplicity; |
1019 | } |
1020 | |
1021 | if (multiplicity < fTriggerMultiplicity) { |
1022 | delete [] pParent; |
1023 | return 0; |
1024 | } |
38112f3f |
1025 | Printf("Triggered on event with multiplicity of %d >= %d", multiplicity, fTriggerMultiplicity); |
700b9416 |
1026 | } |
90a236ce |
1027 | |
1028 | // Select events with a photon pt > min pt going to PHOS eta acceptance or exactly PHOS eta phi |
1029 | if ((fProcess == kPyJets || fProcess == kPyDirectGamma) && fPhotonInCalo && (fCheckPHOSeta || fCheckPHOS)){ |
1030 | |
1031 | Bool_t okd = kFALSE; |
1032 | |
1033 | Int_t pdg = 22; |
1034 | Int_t iphcand = -1; |
1035 | for (i=0; i< np; i++) { |
8507138f |
1036 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce |
1037 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
1038 | Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax |
1039 | |
1040 | if(iparticle->GetStatusCode() == 1 |
1041 | && iparticle->GetPdgCode() == pdg |
1042 | && iparticle->Pt() > fPhotonMinPt |
04a26b0a |
1043 | && eta < fPHOSEta){ |
90a236ce |
1044 | |
1045 | // first check if the photon is in PHOS phi |
1046 | if(IsInPHOS(phi,eta)){ |
1047 | okd = kTRUE; |
1048 | break; |
1049 | } |
1050 | if(fCheckPHOSeta) iphcand = i; // candiate photon to rotate in phi |
1051 | |
1052 | } |
1053 | } |
1054 | |
1055 | if(!okd && iphcand != -1) // execute rotation in phi |
1056 | RotatePhi(iphcand,okd); |
1057 | |
b3305127 |
1058 | if(!okd) { |
1059 | delete [] pParent; |
1060 | return 0; |
1061 | } |
90a236ce |
1062 | } |
1063 | |
7ce1321b |
1064 | if (fTriggerParticle) { |
1065 | Bool_t triggered = kFALSE; |
1066 | for (i = 0; i < np; i++) { |
8507138f |
1067 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
7ce1321b |
1068 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
38db0ee6 |
1069 | if (kf != fTriggerParticle) continue; |
7ce1321b |
1070 | if (iparticle->Pt() == 0.) continue; |
1071 | if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue; |
1072 | triggered = kTRUE; |
1073 | break; |
1074 | } |
234f6d32 |
1075 | if (!triggered) { |
1076 | delete [] pParent; |
1077 | return 0; |
1078 | } |
7ce1321b |
1079 | } |
e0e89f40 |
1080 | |
1081 | |
1082 | // Check if there is a ccbar or bbbar pair with at least one of the two |
1083 | // in fYMin < y < fYMax |
2f405d65 |
1084 | |
9dfe63b3 |
1085 | if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi || fProcess == kPyBeautyJets) { |
9ccc3d0e |
1086 | TParticle *partCheck; |
1087 | TParticle *mother; |
e0e89f40 |
1088 | Bool_t theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE; |
9ccc3d0e |
1089 | Bool_t theChild=kFALSE; |
5d76923e |
1090 | Bool_t triggered=kFALSE; |
9ccc3d0e |
1091 | Float_t y; |
1092 | Int_t pdg,mpdg,mpdgUpperFamily; |
e0e89f40 |
1093 | for(i=0; i<np; i++) { |
9ccc3d0e |
1094 | partCheck = (TParticle*)fParticles.At(i); |
1095 | pdg = partCheck->GetPdgCode(); |
1096 | if(TMath::Abs(pdg) == fFlavorSelect) { // quark |
1097 | if(pdg>0) { theQ=kTRUE; } else { theQbar=kTRUE; } |
1098 | y = 0.5*TMath::Log((partCheck->Energy()+partCheck->Pz()+1.e-13)/ |
1099 | (partCheck->Energy()-partCheck->Pz()+1.e-13)); |
1100 | if(y>fYMin && y<fYMax) inYcut=kTRUE; |
1101 | } |
5d76923e |
1102 | if(fTriggerParticle) { |
1103 | if(TMath::Abs(pdg)==fTriggerParticle) triggered=kTRUE; |
1104 | } |
9ccc3d0e |
1105 | if(fCutOnChild && TMath::Abs(pdg) == fPdgCodeParticleforAcceptanceCut) { |
1106 | Int_t mi = partCheck->GetFirstMother() - 1; |
1107 | if(mi<0) continue; |
1108 | mother = (TParticle*)fParticles.At(mi); |
1109 | mpdg=TMath::Abs(mother->GetPdgCode()); |
75fde694 |
1110 | mpdgUpperFamily=(mpdg>1000 ? mpdg+1000 : mpdg+100); // keep e from c from b |
9ccc3d0e |
1111 | if ( ParentSelected(mpdg) || |
1112 | (fFlavorSelect==5 && ParentSelected(mpdgUpperFamily))) { |
1113 | if (KinematicSelection(partCheck,1)) { |
1114 | theChild=kTRUE; |
1115 | } |
1116 | } |
1117 | } |
e0e89f40 |
1118 | } |
9ccc3d0e |
1119 | if (!theQ || !theQbar || !inYcut) { // one of the c/b conditions not satisfied |
234f6d32 |
1120 | delete[] pParent; |
e0e89f40 |
1121 | return 0; |
1122 | } |
9ccc3d0e |
1123 | if (fCutOnChild && !theChild) { // one of the child conditions not satisfied |
1124 | delete[] pParent; |
1125 | return 0; |
1126 | } |
5d76923e |
1127 | if(fTriggerParticle && !triggered) { // particle requested is not produced |
1128 | delete[] pParent; |
1129 | return 0; |
1130 | } |
9ccc3d0e |
1131 | |
e0e89f40 |
1132 | } |
aea21c57 |
1133 | |
0f6ee828 |
1134 | //Introducing child cuts in case kPyW, kPyZ, kPyMb, and kPyMbNonDiff |
f529e69b |
1135 | if ( (fProcess == kPyW || |
1136 | fProcess == kPyZ || |
1137 | fProcess == kPyMbDefault || |
1138 | fProcess == kPyMb || |
6d2ec66d |
1139 | fProcess == kPyMbAtlasTuneMC09 || |
04081a91 |
1140 | fProcess == kPyMbWithDirectPhoton || |
f529e69b |
1141 | fProcess == kPyMbNonDiffr) |
0f6ee828 |
1142 | && (fCutOnChild == 1) ) { |
1143 | if ( !CheckKinematicsOnChild() ) { |
234f6d32 |
1144 | delete[] pParent; |
0f6ee828 |
1145 | return 0; |
1146 | } |
aea21c57 |
1147 | } |
1148 | |
1149 | |
f913ec4f |
1150 | for (i = 0; i < np; i++) { |
8d2cd130 |
1151 | Int_t trackIt = 0; |
8507138f |
1152 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 |
1153 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
1154 | Int_t ks = iparticle->GetStatusCode(); |
1155 | Int_t km = iparticle->GetFirstMother(); |
1156 | if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) || |
1157 | (ks != 1) || |
9dfe63b3 |
1158 | ((fProcess == kPyJets || fProcess == kPyBeautyJets) && ks == 21 && km == 0 && i>1)) { |
8d2cd130 |
1159 | nc++; |
1160 | if (ks == 1) trackIt = 1; |
1161 | Int_t ipa = iparticle->GetFirstMother()-1; |
1162 | |
1163 | iparent = (ipa > -1) ? pParent[ipa] : -1; |
1164 | |
1165 | // |
1166 | // store track information |
1167 | p[0] = iparticle->Px(); |
1168 | p[1] = iparticle->Py(); |
1169 | p[2] = iparticle->Pz(); |
a920faf9 |
1170 | p[3] = iparticle->Energy(); |
1406f599 |
1171 | |
a920faf9 |
1172 | |
2590ccf9 |
1173 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
1174 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] |
1175 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] |
1176 | |
f913ec4f |
1177 | Float_t tof = fEventTime + kconv * iparticle->T(); |
a920faf9 |
1178 | |
1179 | PushTrack(fTrackIt*trackIt, iparent, kf, |
1180 | p[0], p[1], p[2], p[3], |
1181 | origin[0], origin[1], origin[2], tof, |
1182 | polar[0], polar[1], polar[2], |
1183 | kPPrimary, nt, 1., ks); |
dbd64db6 |
1184 | fNprimaries++; |
8d2cd130 |
1185 | KeepTrack(nt); |
1186 | pParent[i] = nt; |
f913ec4f |
1187 | SetHighWaterMark(nt); |
1188 | |
8d2cd130 |
1189 | } // select particle |
1190 | } // particle loop |
1191 | |
234f6d32 |
1192 | delete[] pParent; |
e0e89f40 |
1193 | |
f913ec4f |
1194 | return 1; |
8d2cd130 |
1195 | } |
1196 | |
1197 | |
1198 | void AliGenPythia::FinishRun() |
1199 | { |
1200 | // Print x-section summary |
1201 | fPythia->Pystat(1); |
2779fc64 |
1202 | |
1203 | if (fNev > 0.) { |
1204 | fQ /= fNev; |
1205 | fX1 /= fNev; |
1206 | fX2 /= fNev; |
1207 | } |
1208 | |
8d2cd130 |
1209 | printf("\nTotal number of Pyevnt() calls %d\n", fTrialsRun); |
1210 | printf("\nMean Q, x1, x2: %f %f %f\n", fQ, fX1, fX2); |
8d2cd130 |
1211 | } |
1212 | |
7184e472 |
1213 | void AliGenPythia::AdjustWeights() const |
8d2cd130 |
1214 | { |
1215 | // Adjust the weights after generation of all events |
1216 | // |
e2bddf81 |
1217 | if (gAlice) { |
1218 | TParticle *part; |
1219 | Int_t ntrack=gAlice->GetMCApp()->GetNtrack(); |
1220 | for (Int_t i=0; i<ntrack; i++) { |
1221 | part= gAlice->GetMCApp()->Particle(i); |
1222 | part->SetWeight(part->GetWeight()*fKineBias); |
1223 | } |
8d2cd130 |
1224 | } |
1225 | } |
1226 | |
20e47f08 |
1227 | void AliGenPythia::SetNuclei(Int_t a1, Int_t a2, Int_t pdfset) |
8d2cd130 |
1228 | { |
1229 | // Treat protons as inside nuclei with mass numbers a1 and a2 |
1d568bc2 |
1230 | |
1a626d4e |
1231 | fAProjectile = a1; |
1232 | fATarget = a2; |
20e47f08 |
1233 | fNucPdf = pdfset; // 0 EKS98 1 EPS08 |
1d568bc2 |
1234 | fSetNuclei = kTRUE; |
8d2cd130 |
1235 | } |
1236 | |
1237 | |
1238 | void AliGenPythia::MakeHeader() |
1239 | { |
7184e472 |
1240 | // |
1241 | // Make header for the simulated event |
1242 | // |
183a5ca9 |
1243 | if (gAlice) { |
1244 | if (gAlice->GetEvNumber()>=fDebugEventFirst && |
f913ec4f |
1245 | gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(2); |
183a5ca9 |
1246 | } |
1247 | |
8d2cd130 |
1248 | // Builds the event header, to be called after each event |
e5c87a3d |
1249 | if (fHeader) delete fHeader; |
1250 | fHeader = new AliGenPythiaEventHeader("Pythia"); |
8d2cd130 |
1251 | // |
1252 | // Event type |
800be8b7 |
1253 | if(fProcDiff>0){ |
1254 | // if(fProcDiff == 92 || fProcDiff == 93) printf("\n\n\n\n\n"); |
1255 | // printf("fPythia->GetMSTI(1) = %d fProcDiff = %d\n",fPythia->GetMSTI(1), fProcDiff); |
1256 | ((AliGenPythiaEventHeader*) fHeader)->SetProcessType(fProcDiff); |
1257 | } |
1258 | else |
e5c87a3d |
1259 | ((AliGenPythiaEventHeader*) fHeader)->SetProcessType(fPythia->GetMSTI(1)); |
8d2cd130 |
1260 | // |
1261 | // Number of trials |
e5c87a3d |
1262 | ((AliGenPythiaEventHeader*) fHeader)->SetTrials(fTrials); |
8d2cd130 |
1263 | // |
1264 | // Event Vertex |
d25cfd65 |
1265 | fHeader->SetPrimaryVertex(fVertex); |
d07f0af2 |
1266 | fHeader->SetInteractionTime(fEventTime); |
dbd64db6 |
1267 | // |
1268 | // Number of primaries |
1269 | fHeader->SetNProduced(fNprimaries); |
8d2cd130 |
1270 | // |
1271 | // Jets that have triggered |
f913ec4f |
1272 | |
9dfe63b3 |
1273 | //Need to store jets for b-jet studies too! |
2f405d65 |
1274 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) |
8d2cd130 |
1275 | { |
1276 | Int_t ntrig, njet; |
1277 | Float_t jets[4][10]; |
1278 | GetJets(njet, ntrig, jets); |
9ff6c04c |
1279 | |
8d2cd130 |
1280 | |
1281 | for (Int_t i = 0; i < ntrig; i++) { |
e5c87a3d |
1282 | ((AliGenPythiaEventHeader*) fHeader)->AddJet(jets[0][i], jets[1][i], jets[2][i], |
8d2cd130 |
1283 | jets[3][i]); |
1284 | } |
1285 | } |
5fa4b20b |
1286 | // |
1287 | // Copy relevant information from external header, if present. |
1288 | // |
1289 | Float_t uqJet[4]; |
1290 | |
1291 | if (fRL) { |
1292 | AliGenPythiaEventHeader* exHeader = (AliGenPythiaEventHeader*) (fRL->GetHeader()->GenEventHeader()); |
1293 | for (Int_t i = 0; i < exHeader->NTriggerJets(); i++) |
1294 | { |
1295 | printf("Adding Jet %d %d \n", i, exHeader->NTriggerJets()); |
1296 | |
1297 | |
1298 | exHeader->TriggerJet(i, uqJet); |
1299 | ((AliGenPythiaEventHeader*) fHeader)->AddUQJet(uqJet[0], uqJet[1], uqJet[2], uqJet[3]); |
1300 | } |
1301 | } |
1302 | // |
1303 | // Store quenching parameters |
1304 | // |
1305 | if (fQuench){ |
b6262a45 |
1306 | Double_t z[4] = {0.}; |
1307 | Double_t xp = 0.; |
1308 | Double_t yp = 0.; |
1309 | |
7c21f297 |
1310 | if (fQuench == 1) { |
1311 | // Pythia::Quench() |
1312 | fPythia->GetQuenchingParameters(xp, yp, z); |
1bab4b79 |
1313 | } else if (fQuench == 2){ |
7c21f297 |
1314 | // Pyquen |
1315 | Double_t r1 = PARIMP.rb1; |
1316 | Double_t r2 = PARIMP.rb2; |
1317 | Double_t b = PARIMP.b1; |
1318 | Double_t r = 0.5 * TMath::Sqrt(2. * (r1 * r1 + r2 * r2) - b * b); |
1319 | Double_t phi = PARIMP.psib1; |
1320 | xp = r * TMath::Cos(phi); |
1321 | yp = r * TMath::Sin(phi); |
1322 | |
1bab4b79 |
1323 | } else if (fQuench == 4) { |
1324 | // QPythia |
5831e75f |
1325 | Double_t xy[2]; |
e9719084 |
1326 | Double_t i0i1[2]; |
1327 | AliFastGlauber::Instance()->GetSavedXY(xy); |
1328 | AliFastGlauber::Instance()->GetSavedI0I1(i0i1); |
5831e75f |
1329 | xp = xy[0]; |
1330 | yp = xy[1]; |
e6fe9b82 |
1331 | ((AliGenPythiaEventHeader*) fHeader)->SetImpactParameter(fImpact); |
7c21f297 |
1332 | } |
1bab4b79 |
1333 | |
7c21f297 |
1334 | ((AliGenPythiaEventHeader*) fHeader)->SetXYJet(xp, yp); |
1335 | ((AliGenPythiaEventHeader*) fHeader)->SetZQuench(z); |
1bab4b79 |
1336 | } |
beac474c |
1337 | // |
1338 | // Store pt^hard |
1339 | ((AliGenPythiaEventHeader*) fHeader)->SetPtHard(fPythia->GetVINT(47)); |
5fa4b20b |
1340 | // |
cf57b268 |
1341 | // Pass header |
5fa4b20b |
1342 | // |
cf57b268 |
1343 | AddHeader(fHeader); |
4c4eac97 |
1344 | fHeader = 0x0; |
8d2cd130 |
1345 | } |
cf57b268 |
1346 | |
c2fc9d31 |
1347 | Bool_t AliGenPythia::CheckTrigger(const TParticle* jet1, const TParticle* jet2) |
8d2cd130 |
1348 | { |
1349 | // Check the kinematic trigger condition |
1350 | // |
1351 | Double_t eta[2]; |
1352 | eta[0] = jet1->Eta(); |
1353 | eta[1] = jet2->Eta(); |
1354 | Double_t phi[2]; |
1355 | phi[0] = jet1->Phi(); |
1356 | phi[1] = jet2->Phi(); |
1357 | Int_t pdg[2]; |
1358 | pdg[0] = jet1->GetPdgCode(); |
1359 | pdg[1] = jet2->GetPdgCode(); |
1360 | Bool_t triggered = kFALSE; |
1361 | |
2f405d65 |
1362 | if (fProcess == kPyJets || fProcess == kPyBeautyJets || fProcess == kPyBeautyppMNRwmi) { |
8d2cd130 |
1363 | Int_t njets = 0; |
1364 | Int_t ntrig = 0; |
1365 | Float_t jets[4][10]; |
1366 | // |
1367 | // Use Pythia clustering on parton level to determine jet axis |
1368 | // |
1369 | GetJets(njets, ntrig, jets); |
1370 | |
76d6ba9a |
1371 | if (ntrig || fEtMinJet == 0.) triggered = kTRUE; |
8d2cd130 |
1372 | // |
1373 | } else { |
1374 | Int_t ij = 0; |
1375 | Int_t ig = 1; |
1376 | if (pdg[0] == kGamma) { |
1377 | ij = 1; |
1378 | ig = 0; |
1379 | } |
1380 | //Check eta range first... |
1381 | if ((eta[ij] < fEtaMaxJet && eta[ij] > fEtaMinJet) && |
1382 | (eta[ig] < fEtaMaxGamma && eta[ig] > fEtaMinGamma)) |
1383 | { |
1384 | //Eta is okay, now check phi range |
1385 | if ((phi[ij] < fPhiMaxJet && phi[ij] > fPhiMinJet) && |
1386 | (phi[ig] < fPhiMaxGamma && phi[ig] > fPhiMinGamma)) |
1387 | { |
1388 | triggered = kTRUE; |
1389 | } |
1390 | } |
1391 | } |
1392 | return triggered; |
1393 | } |
aea21c57 |
1394 | |
1395 | |
aea21c57 |
1396 | |
7184e472 |
1397 | Bool_t AliGenPythia::CheckKinematicsOnChild(){ |
1398 | // |
1399 | //Checking Kinematics on Child (status code 1, particle code ?, kin cuts |
1400 | // |
aea21c57 |
1401 | Bool_t checking = kFALSE; |
1402 | Int_t j, kcode, ks, km; |
1403 | Int_t nPartAcc = 0; //number of particles in the acceptance range |
1404 | Int_t numberOfAcceptedParticles = 1; |
1405 | if (fNumberOfAcceptedParticles != 0) { numberOfAcceptedParticles = fNumberOfAcceptedParticles; } |
8507138f |
1406 | Int_t npart = fParticles.GetEntriesFast(); |
aea21c57 |
1407 | |
0f6ee828 |
1408 | for (j = 0; j<npart; j++) { |
8507138f |
1409 | TParticle * jparticle = (TParticle *) fParticles.At(j); |
aea21c57 |
1410 | kcode = TMath::Abs( CheckPDGCode(jparticle->GetPdgCode()) ); |
1411 | ks = jparticle->GetStatusCode(); |
1412 | km = jparticle->GetFirstMother(); |
1413 | |
1414 | if( (ks == 1) && (kcode == fPdgCodeParticleforAcceptanceCut) && (KinematicSelection(jparticle,1)) ){ |
1415 | nPartAcc++; |
1416 | } |
0f6ee828 |
1417 | if( numberOfAcceptedParticles <= nPartAcc){ |
1418 | checking = kTRUE; |
1419 | break; |
1420 | } |
aea21c57 |
1421 | } |
0f6ee828 |
1422 | |
aea21c57 |
1423 | return checking; |
aea21c57 |
1424 | } |
1425 | |
5fa4b20b |
1426 | void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) |
8d2cd130 |
1427 | { |
1058d9df |
1428 | // |
1429 | // Load event into Pythia Common Block |
1430 | // |
1431 | |
1432 | Int_t npart = stack -> GetNprimary(); |
1433 | Int_t n0 = 0; |
1434 | |
1435 | if (!flag) { |
1436 | (fPythia->GetPyjets())->N = npart; |
1437 | } else { |
1438 | n0 = (fPythia->GetPyjets())->N; |
1439 | (fPythia->GetPyjets())->N = n0 + npart; |
1440 | } |
1441 | |
1442 | |
1443 | for (Int_t part = 0; part < npart; part++) { |
1444 | TParticle *mPart = stack->Particle(part); |
32d6ef7d |
1445 | |
1058d9df |
1446 | Int_t kf = mPart->GetPdgCode(); |
1447 | Int_t ks = mPart->GetStatusCode(); |
1448 | Int_t idf = mPart->GetFirstDaughter(); |
1449 | Int_t idl = mPart->GetLastDaughter(); |
1450 | |
1451 | if (reHadr) { |
1452 | if (ks == 11 || ks == 12) { |
1453 | ks -= 10; |
1454 | idf = -1; |
1455 | idl = -1; |
1456 | } |
32d6ef7d |
1457 | } |
1458 | |
1058d9df |
1459 | Float_t px = mPart->Px(); |
1460 | Float_t py = mPart->Py(); |
1461 | Float_t pz = mPart->Pz(); |
1462 | Float_t e = mPart->Energy(); |
1463 | Float_t m = mPart->GetCalcMass(); |
32d6ef7d |
1464 | |
1058d9df |
1465 | |
1466 | (fPythia->GetPyjets())->P[0][part+n0] = px; |
1467 | (fPythia->GetPyjets())->P[1][part+n0] = py; |
1468 | (fPythia->GetPyjets())->P[2][part+n0] = pz; |
1469 | (fPythia->GetPyjets())->P[3][part+n0] = e; |
1470 | (fPythia->GetPyjets())->P[4][part+n0] = m; |
1471 | |
1472 | (fPythia->GetPyjets())->K[1][part+n0] = kf; |
1473 | (fPythia->GetPyjets())->K[0][part+n0] = ks; |
1474 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; |
1475 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; |
1476 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; |
1477 | } |
1478 | } |
1479 | |
c2fc9d31 |
1480 | void AliGenPythia::LoadEvent(const TObjArray* stack, Int_t flag, Int_t reHadr) |
1058d9df |
1481 | { |
1482 | // |
1483 | // Load event into Pythia Common Block |
1484 | // |
1485 | |
1486 | Int_t npart = stack -> GetEntries(); |
1487 | Int_t n0 = 0; |
1488 | |
1489 | if (!flag) { |
1490 | (fPythia->GetPyjets())->N = npart; |
1491 | } else { |
1492 | n0 = (fPythia->GetPyjets())->N; |
1493 | (fPythia->GetPyjets())->N = n0 + npart; |
1494 | } |
1495 | |
1496 | |
1497 | for (Int_t part = 0; part < npart; part++) { |
1498 | TParticle *mPart = dynamic_cast<TParticle *>(stack->At(part)); |
92847124 |
1499 | if (!mPart) continue; |
1500 | |
1058d9df |
1501 | Int_t kf = mPart->GetPdgCode(); |
1502 | Int_t ks = mPart->GetStatusCode(); |
1503 | Int_t idf = mPart->GetFirstDaughter(); |
1504 | Int_t idl = mPart->GetLastDaughter(); |
1505 | |
1506 | if (reHadr) { |
92847124 |
1507 | if (ks == 11 || ks == 12) { |
1508 | ks -= 10; |
1509 | idf = -1; |
1510 | idl = -1; |
1511 | } |
8d2cd130 |
1512 | } |
1058d9df |
1513 | |
1514 | Float_t px = mPart->Px(); |
1515 | Float_t py = mPart->Py(); |
1516 | Float_t pz = mPart->Pz(); |
1517 | Float_t e = mPart->Energy(); |
1518 | Float_t m = mPart->GetCalcMass(); |
1519 | |
1520 | |
1521 | (fPythia->GetPyjets())->P[0][part+n0] = px; |
1522 | (fPythia->GetPyjets())->P[1][part+n0] = py; |
1523 | (fPythia->GetPyjets())->P[2][part+n0] = pz; |
1524 | (fPythia->GetPyjets())->P[3][part+n0] = e; |
1525 | (fPythia->GetPyjets())->P[4][part+n0] = m; |
1526 | |
1527 | (fPythia->GetPyjets())->K[1][part+n0] = kf; |
1528 | (fPythia->GetPyjets())->K[0][part+n0] = ks; |
1529 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; |
1530 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; |
1531 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; |
1532 | } |
8d2cd130 |
1533 | } |
1534 | |
5fa4b20b |
1535 | |
014a9521 |
1536 | void AliGenPythia::RecJetsUA1(Int_t& njets, Float_t jets [4][50]) |
8d2cd130 |
1537 | { |
1538 | // |
1539 | // Calls the Pythia jet finding algorithm to find jets in the current event |
1540 | // |
1541 | // |
8d2cd130 |
1542 | // |
1543 | // Save jets |
1544 | Int_t n = fPythia->GetN(); |
1545 | |
1546 | // |
1547 | // Run Jet Finder |
1548 | fPythia->Pycell(njets); |
1549 | Int_t i; |
1550 | for (i = 0; i < njets; i++) { |
1551 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; |
1552 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; |
1553 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; |
1554 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; |
1555 | |
1556 | jets[0][i] = px; |
1557 | jets[1][i] = py; |
1558 | jets[2][i] = pz; |
1559 | jets[3][i] = e; |
1560 | } |
1561 | } |
1562 | |
1563 | |
1564 | |
1565 | void AliGenPythia::GetJets(Int_t& nJets, Int_t& nJetsTrig, Float_t jets[4][10]) |
1566 | { |
1567 | // |
1568 | // Calls the Pythia clustering algorithm to find jets in the current event |
1569 | // |
1570 | Int_t n = fPythia->GetN(); |
1571 | nJets = 0; |
1572 | nJetsTrig = 0; |
1573 | if (fJetReconstruction == kCluster) { |
1574 | // |
1575 | // Configure cluster algorithm |
1576 | // |
1577 | fPythia->SetPARU(43, 2.); |
1578 | fPythia->SetMSTU(41, 1); |
1579 | // |
1580 | // Call cluster algorithm |
1581 | // |
1582 | fPythia->Pyclus(nJets); |
1583 | // |
1584 | // Loading jets from common block |
1585 | // |
1586 | } else { |
592f8307 |
1587 | |
8d2cd130 |
1588 | // |
1589 | // Run Jet Finder |
1590 | fPythia->Pycell(nJets); |
1591 | } |
1592 | |
1593 | Int_t i; |
1594 | for (i = 0; i < nJets; i++) { |
1595 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; |
1596 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; |
1597 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; |
1598 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; |
1599 | Float_t pt = TMath::Sqrt(px * px + py * py); |
a920faf9 |
1600 | Float_t phi = TMath::Pi() + TMath::ATan2(-py, -px); |
8d2cd130 |
1601 | Float_t theta = TMath::ATan2(pt,pz); |
1602 | Float_t et = e * TMath::Sin(theta); |
1603 | Float_t eta = -TMath::Log(TMath::Tan(theta / 2.)); |
8d2cd130 |
1604 | if ( |
1605 | eta > fEtaMinJet && eta < fEtaMaxJet && |
675eb105 |
1606 | phi > fPhiMinJet && phi < fPhiMaxJet && |
8d2cd130 |
1607 | et > fEtMinJet && et < fEtMaxJet |
1608 | ) |
1609 | { |
1610 | jets[0][nJetsTrig] = px; |
1611 | jets[1][nJetsTrig] = py; |
1612 | jets[2][nJetsTrig] = pz; |
1613 | jets[3][nJetsTrig] = e; |
1614 | nJetsTrig++; |
5fa4b20b |
1615 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); |
8d2cd130 |
1616 | } else { |
1617 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); |
1618 | } |
1619 | } |
1620 | } |
1621 | |
f913ec4f |
1622 | void AliGenPythia::GetSubEventTime() |
1623 | { |
1624 | // Calculates time of the next subevent |
9d7108a7 |
1625 | fEventTime = 0.; |
1626 | if (fEventsTime) { |
1627 | TArrayF &array = *fEventsTime; |
1628 | fEventTime = array[fCurSubEvent++]; |
1629 | } |
1630 | // printf(" Event time: %d %f %p",fCurSubEvent,fEventTime,fEventsTime); |
1631 | return; |
f913ec4f |
1632 | } |
8d2cd130 |
1633 | |
c2fc9d31 |
1634 | Bool_t AliGenPythia::IsInEMCAL(Float_t phi, Float_t eta) const |
ec2c406e |
1635 | { |
1636 | // Is particle in EMCAL acceptance? |
ec2c406e |
1637 | // phi in degrees, etamin=-etamax |
9fd8e520 |
1638 | if(phi > fEMCALMinPhi && phi < fEMCALMaxPhi && |
1639 | eta < fEMCALEta ) |
ec2c406e |
1640 | return kTRUE; |
1641 | else |
1642 | return kFALSE; |
1643 | } |
1644 | |
c2fc9d31 |
1645 | Bool_t AliGenPythia::IsInPHOS(Float_t phi, Float_t eta) const |
ec2c406e |
1646 | { |
1647 | // Is particle in PHOS acceptance? |
1648 | // Acceptance slightly larger considered. |
1649 | // phi in degrees, etamin=-etamax |
9fd8e520 |
1650 | if(phi > fPHOSMinPhi && phi < fPHOSMaxPhi && |
1651 | eta < fPHOSEta ) |
ec2c406e |
1652 | return kTRUE; |
1653 | else |
1654 | return kFALSE; |
1655 | } |
1656 | |
90a236ce |
1657 | void AliGenPythia::RotatePhi(Int_t iphcand, Bool_t& okdd) |
1658 | { |
1659 | //calculate the new position random between fPHOSMinPhi and fPHOSMaxPhi |
1660 | Double_t phiPHOSmin = TMath::Pi()*fPHOSMinPhi/180; |
1661 | Double_t phiPHOSmax = TMath::Pi()*fPHOSMaxPhi/180; |
800be8b7 |
1662 | Double_t phiPHOS = (AliPythiaRndm::GetPythiaRandom())->Uniform(phiPHOSmin,phiPHOSmax); |
90a236ce |
1663 | |
1664 | //calculate deltaphi |
8507138f |
1665 | TParticle* ph = (TParticle *) fParticles.At(iphcand); |
90a236ce |
1666 | Double_t phphi = ph->Phi(); |
1667 | Double_t deltaphi = phiPHOS - phphi; |
1668 | |
1669 | |
1670 | |
1671 | //loop for all particles and produce the phi rotation |
8507138f |
1672 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
90a236ce |
1673 | Double_t oldphi, newphi; |
777e69b0 |
1674 | Double_t newVx, newVy, r, vZ, time; |
1675 | Double_t newPx, newPy, pt, pz, e; |
90a236ce |
1676 | for(Int_t i=0; i< np; i++) { |
8507138f |
1677 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce |
1678 | oldphi = iparticle->Phi(); |
1679 | newphi = oldphi + deltaphi; |
1680 | if(newphi < 0) newphi = 2*TMath::Pi() + newphi; // correct angle |
1681 | if(newphi > 2*TMath::Pi()) newphi = newphi - 2*TMath::Pi(); // correct angle |
1682 | |
777e69b0 |
1683 | r = iparticle->R(); |
1684 | newVx = r * TMath::Cos(newphi); |
1685 | newVy = r * TMath::Sin(newphi); |
1686 | vZ = iparticle->Vz(); // don't transform |
90a236ce |
1687 | time = iparticle->T(); // don't transform |
1688 | |
1689 | pt = iparticle->Pt(); |
777e69b0 |
1690 | newPx = pt * TMath::Cos(newphi); |
1691 | newPy = pt * TMath::Sin(newphi); |
1692 | pz = iparticle->Pz(); // don't transform |
1693 | e = iparticle->Energy(); // don't transform |
90a236ce |
1694 | |
1695 | // apply rotation |
777e69b0 |
1696 | iparticle->SetProductionVertex(newVx, newVy, vZ, time); |
1697 | iparticle->SetMomentum(newPx, newPy, pz, e); |
90a236ce |
1698 | |
1699 | } //end particle loop |
1700 | |
1701 | // now let's check that we put correctly the candidate photon in PHOS |
1702 | Float_t phi = ph->Phi()*180./TMath::Pi(); //Convert to degrees |
1703 | Float_t eta =TMath::Abs(ph->Eta());//in calos etamin=-etamax |
1704 | if(IsInPHOS(phi,eta)) |
1705 | okdd = kTRUE; |
1706 | } |
ec2c406e |
1707 | |
1708 | |
589380c6 |
1709 | |
800be8b7 |
1710 | Bool_t AliGenPythia::CheckDiffraction() |
1711 | { |
1712 | // use this method only with Perugia-0 tune! |
1713 | |
1714 | // printf("AAA\n"); |
1715 | |
1716 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
1717 | |
1718 | Int_t iPart1=-1; |
1719 | Int_t iPart2=-1; |
1720 | |
1721 | Double_t y1 = 1e10; |
1722 | Double_t y2 = -1e10; |
1723 | |
1724 | const Int_t kNstable=20; |
1725 | const Int_t pdgStable[20] = { |
1726 | 22, // Photon |
1727 | 11, // Electron |
1728 | 12, // Electron Neutrino |
1729 | 13, // Muon |
1730 | 14, // Muon Neutrino |
1731 | 15, // Tau |
1732 | 16, // Tau Neutrino |
1733 | 211, // Pion |
1734 | 321, // Kaon |
1735 | 311, // K0 |
1736 | 130, // K0s |
1737 | 310, // K0l |
1738 | 2212, // Proton |
1739 | 2112, // Neutron |
1740 | 3122, // Lambda_0 |
1741 | 3112, // Sigma Minus |
1742 | 3222, // Sigma Plus |
1743 | 3312, // Xsi Minus |
1744 | 3322, // Xsi0 |
1745 | 3334 // Omega |
1746 | }; |
1747 | |
1748 | for (Int_t i = 0; i < np; i++) { |
1749 | TParticle * part = (TParticle *) fParticles.At(i); |
1750 | |
1751 | Int_t statusCode = part->GetStatusCode(); |
1752 | |
1753 | // Initial state particle |
1754 | if (statusCode != 1) |
1755 | continue; |
1756 | |
1757 | Int_t pdg = TMath::Abs(part->GetPdgCode()); |
1758 | Bool_t isStable = kFALSE; |
1759 | for (Int_t i1 = 0; i1 < kNstable; i1++) { |
1760 | if (pdg == pdgStable[i1]) { |
1761 | isStable = kTRUE; |
1762 | break; |
1763 | } |
1764 | } |
1765 | if(!isStable) |
1766 | continue; |
1767 | |
1768 | Double_t y = part->Y(); |
1769 | |
1770 | if (y < y1) |
1771 | { |
1772 | y1 = y; |
1773 | iPart1 = i; |
1774 | } |
1775 | if (y > y2) |
1776 | { |
1777 | y2 = y; |
1778 | iPart2 = i; |
1779 | } |
1780 | } |
1781 | |
1782 | if(iPart1<0 || iPart2<0) return kFALSE; |
1783 | |
1784 | y1=TMath::Abs(y1); |
1785 | y2=TMath::Abs(y2); |
1786 | |
1787 | TParticle * part1 = (TParticle *) fParticles.At(iPart1); |
1788 | TParticle * part2 = (TParticle *) fParticles.At(iPart2); |
1789 | |
1790 | Int_t pdg1 = part1->GetPdgCode(); |
1791 | Int_t pdg2 = part2->GetPdgCode(); |
1792 | |
1793 | |
1794 | Int_t iPart = -1; |
1795 | if (pdg1 == 2212 && pdg2 == 2212) |
1796 | { |
1797 | if(y1 > y2) |
1798 | iPart = iPart1; |
1799 | else if(y1 < y2) |
1800 | iPart = iPart2; |
1801 | else { |
1802 | iPart = iPart1; |
1803 | if((AliPythiaRndm::GetPythiaRandom())->Uniform(0.,1.)>0.5) iPart = iPart2; |
1804 | } |
1805 | } |
1806 | else if (pdg1 == 2212) |
1807 | iPart = iPart1; |
1808 | else if (pdg2 == 2212) |
1809 | iPart = iPart2; |
1810 | |
1811 | |
1812 | |
1813 | |
1814 | |
1815 | Double_t M=-1.; |
1816 | if(iPart>0) { |
1817 | TParticle * part = (TParticle *) fParticles.At(iPart); |
1818 | Double_t E= part->Energy(); |
1819 | Double_t P= part->P(); |
1820 | M= TMath::Sqrt((fEnergyCMS-E-P)*(fEnergyCMS-E+P)); |
1821 | } |
1822 | |
1823 | Int_t nbin=120; |
1824 | Double_t bin[]={ |
1825 | 1.080000, 1.274258, 1.468516, 1.662773, 1.857031, 2.051289, |
1826 | 2.245547, 2.439805, 2.634062, 2.828320, 3.022578, 3.216836, |
1827 | 3.411094, 3.605352, 3.799609, 3.993867, 4.188125, 4.382383, |
1828 | 4.576641, 4.770898, 4.965156, 5.547930, 6.130703, 6.713477, |
1829 | 7.296250, 7.879023, 8.461797, 9.044570, 9.627344, 10.210117, |
1830 | 10.792891, 11.375664, 11.958437, 12.541211, 13.123984, 13.706758, |
1831 | 14.289531, 14.872305, 15.455078, 16.037852, 16.620625, 17.203398, |
1832 | 17.786172, 18.368945, 18.951719, 19.534492, 20.117266, 20.700039, |
1833 | 21.282812, 21.865586, 22.448359, 23.031133, 23.613906, 24.196680, |
1834 | 24.779453, 25.362227, 25.945000, 26.527773, 27.110547, 27.693320, |
1835 | 28.276094, 28.858867, 29.441641, 30.024414, 30.607187, 31.189961, |
1836 | 31.772734, 32.355508, 32.938281, 33.521055, 34.103828, 34.686602, |
1837 | 35.269375, 35.852148, 36.434922, 37.017695, 37.600469, 38.183242, |
1838 | 38.766016, 39.348789, 39.931562, 40.514336, 41.097109, 41.679883, |
1839 | 42.262656, 42.845430, 43.428203, 44.010977, 44.593750, 45.176523, |
1840 | 45.759297, 46.342070, 46.924844, 47.507617, 48.090391, 48.673164, |
1841 | 49.255937, 49.838711, 50.421484, 57.220508, 64.019531, 70.818555, |
1842 | 77.617578, 84.416602, 91.215625, 98.014648, 104.813672, 111.612695, |
1843 | 118.411719, 125.210742, 132.009766, 138.808789, 145.607812, 152.406836, |
1844 | 159.205859, 166.004883, 172.803906, 179.602930, 186.401953, 193.200977, |
1845 | 200.000000}; |
1846 | Double_t w[]={ |
1847 | 1.000000, 0.275812, 0.267308, 0.263268, 0.263828, 0.263039, |
1848 | 0.260546, 0.259344, 0.255477, 0.253782, 0.253562, 0.252492, |
1849 | 0.251076, 0.247862, 0.248933, 0.243599, 0.244255, 0.238506, |
1850 | 0.239546, 0.237845, 0.237977, 0.229379, 0.224771, 0.217581, |
1851 | 0.208860, 0.207241, 0.198955, 0.196449, 0.193827, 0.190220, |
1852 | 0.184715, 0.183067, 0.178325, 0.175887, 0.171299, 0.168718, |
1853 | 0.167453, 0.165153, 0.163457, 0.159637, 0.156855, 0.155488, |
1854 | 0.154545, 0.155968, 0.150488, 0.148797, 0.145358, 0.146196, |
1855 | 0.145891, 0.142752, 0.145072, 0.141265, 0.141857, 0.138462, |
1856 | 0.142992, 0.141357, 0.139391, 0.139629, 0.135197, 0.135731, |
1857 | 0.133194, 0.137190, 0.135745, 0.134522, 0.136094, 0.130405, |
1858 | 0.128371, 0.131680, 0.130591, 0.133539, 0.129370, 0.128254, |
1859 | 0.128262, 0.131088, 0.128294, 0.130070, 0.124553, 0.131489, |
1860 | 0.128038, 0.122997, 0.130699, 0.125630, 0.124746, 0.123679, |
1861 | 0.127864, 0.125776, 0.126272, 0.121492, 0.124929, 0.122221, |
1862 | 0.127017, 0.123706, 0.122701, 0.123731, 0.122219, 0.120783, |
1863 | 0.120324, 0.120228, 0.123615, 0.120589, 0.119549, 0.118836, |
1864 | 0.118146, 0.120175, 0.122031, 0.122076, 0.122849, 0.122627, |
1865 | 0.126281, 0.127696, 0.129084, 0.130001, 0.134062, 0.134786, |
1866 | 0.137286, 0.136625, 0.139091, 0.143692, 0.144781, 0.146768}; |
1867 | |
1868 | Double_t wSD=1.; |
1869 | Double_t wDD=0.178783; |
1870 | //Double_t wND=0.220200; |
1871 | Double_t wND=0.220200+0.001; |
1872 | |
1873 | if(M>-1 && M<bin[0]) return kFALSE; |
1874 | if(M>bin[nbin]) M=-1; |
1875 | |
1876 | Int_t procType=fPythia->GetMSTI(1); |
1877 | Int_t proc0=2; |
1878 | if(procType== 94) proc0=1; |
1879 | if(procType== 92 || procType== 93) proc0=0; |
1880 | |
1881 | |
1882 | // printf("M = %f bin[nbin] = %f\n",M, bin[nbin]); |
1883 | |
1884 | Int_t proc=2; |
1885 | if(M>0) proc=0; |
1886 | else if(proc0==1) proc=1; |
1887 | |
1888 | if(proc==0 && (AliPythiaRndm::GetPythiaRandom())->Uniform(0.,1.) > wSD) return kFALSE; |
1889 | if(proc==1 && (AliPythiaRndm::GetPythiaRandom())->Uniform(0.,1.) > wDD) return kFALSE; |
1890 | if(proc==2 && (AliPythiaRndm::GetPythiaRandom())->Uniform(0.,1.) > wND) return kFALSE; |
1891 | |
1892 | |
1893 | // if(proc==1 || proc==2) return kFALSE; |
1894 | |
1895 | if(proc!=0) { |
1896 | if(proc0!=0) fProcDiff = procType; |
1897 | else fProcDiff = 95; |
1898 | return kTRUE; |
1899 | } |
1900 | |
1901 | Int_t ibin=-1; |
1902 | for(Int_t i=0; i<nbin; i++) |
1903 | if(M>bin[i] && M<=bin[i+1]) { |
1904 | ibin=i; |
1905 | // printf("Mi> %f && Mi< %f\n", bin[i], bin[i+1]); |
1906 | break; |
1907 | } |
1908 | |
1909 | // printf("w[ibin] = %f\n", w[ibin]); |
1910 | |
1911 | if((AliPythiaRndm::GetPythiaRandom())->Uniform(0.,1.)> w[ibin]) return kFALSE; |
1912 | |
1913 | // printf("iPart = %d\n", iPart); |
1914 | |
1915 | if(iPart==iPart1) fProcDiff=93; |
1916 | else if(iPart==iPart2) fProcDiff=92; |
1917 | else { |
1918 | printf("EROOR: iPart!=iPart1 && iPart!=iPart2\n"); |
1919 | |
1920 | } |
1921 | |
1922 | return kTRUE; |
1923 | } |