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), |
55 | fStrucFunc(kCTEQ5L), |
e8a8adcd |
56 | fKineBias(0.), |
57 | fTrials(0), |
58 | fTrialsRun(0), |
59 | fQ(0.), |
60 | fX1(0.), |
61 | fX2(0.), |
62 | fEventTime(0.), |
63 | fInteractionRate(0.), |
64 | fTimeWindow(0.), |
65 | fCurSubEvent(0), |
66 | fEventsTime(0), |
67 | fNev(0), |
68 | fFlavorSelect(0), |
69 | fXsection(0.), |
70 | fPythia(0), |
71 | fPtHardMin(0.), |
72 | fPtHardMax(1.e4), |
73 | fYHardMin(-1.e10), |
74 | fYHardMax(1.e10), |
75 | fGinit(1), |
76 | fGfinal(1), |
77 | fHadronisation(1), |
78 | fNpartons(0), |
79 | fReadFromFile(0), |
80 | fQuench(0), |
cd07c39b |
81 | fQhat(0.), |
82 | fLength(0.), |
e6fe9b82 |
83 | fImpact(0.), |
e8a8adcd |
84 | fPtKick(1.), |
85 | fFullEvent(kTRUE), |
86 | fDecayer(new AliDecayerPythia()), |
87 | fDebugEventFirst(-1), |
88 | fDebugEventLast(-1), |
89 | fEtMinJet(0.), |
90 | fEtMaxJet(1.e4), |
91 | fEtaMinJet(-20.), |
92 | fEtaMaxJet(20.), |
93 | fPhiMinJet(0.), |
94 | fPhiMaxJet(2.* TMath::Pi()), |
95 | fJetReconstruction(kCell), |
96 | fEtaMinGamma(-20.), |
97 | fEtaMaxGamma(20.), |
98 | fPhiMinGamma(0.), |
99 | fPhiMaxGamma(2. * TMath::Pi()), |
100 | fPycellEtaMax(2.), |
101 | fPycellNEta(274), |
102 | fPycellNPhi(432), |
103 | fPycellThreshold(0.), |
104 | fPycellEtSeed(4.), |
105 | fPycellMinEtJet(10.), |
106 | fPycellMaxRadius(1.), |
107 | fStackFillOpt(kFlavorSelection), |
108 | fFeedDownOpt(kTRUE), |
109 | fFragmentation(kTRUE), |
110 | fSetNuclei(kFALSE), |
111 | fNewMIS(kFALSE), |
112 | fHFoff(kFALSE), |
20e47f08 |
113 | fNucPdf(0), |
e8a8adcd |
114 | fTriggerParticle(0), |
115 | fTriggerEta(0.9), |
700b9416 |
116 | fTriggerMultiplicity(0), |
117 | fTriggerMultiplicityEta(0), |
e8a8adcd |
118 | fCountMode(kCountAll), |
119 | fHeader(0), |
120 | fRL(0), |
ec2c406e |
121 | fFileName(0), |
9fd8e520 |
122 | fFragPhotonInCalo(kFALSE), |
ec2c406e |
123 | fPi0InCalo(kFALSE) , |
90a236ce |
124 | fPhotonInCalo(kFALSE), |
9dfe63b3 |
125 | fEleInEMCAL(kFALSE), |
9fd8e520 |
126 | fCheckEMCAL(kFALSE), |
127 | fCheckPHOS(kFALSE), |
90a236ce |
128 | fCheckPHOSeta(kFALSE), |
9fd8e520 |
129 | fFragPhotonOrPi0MinPt(0), |
90a236ce |
130 | fPhotonMinPt(0), |
9dfe63b3 |
131 | fElectronMinPt(0), |
9fd8e520 |
132 | fPHOSMinPhi(219.), |
133 | fPHOSMaxPhi(321.), |
134 | fPHOSEta(0.13), |
135 | fEMCALMinPhi(79.), |
136 | fEMCALMaxPhi(191.), |
137 | fEMCALEta(0.71) |
ec2c406e |
138 | |
8d2cd130 |
139 | { |
140 | // Default Constructor |
e7c989e4 |
141 | fEnergyCMS = 5500.; |
2d9f9817 |
142 | SetNuclei(0,0); |
7cdba479 |
143 | if (!AliPythiaRndm::GetPythiaRandom()) |
e8a8adcd |
144 | AliPythiaRndm::SetPythiaRandom(GetRandom()); |
8d2cd130 |
145 | } |
146 | |
147 | AliGenPythia::AliGenPythia(Int_t npart) |
e8a8adcd |
148 | :AliGenMC(npart), |
149 | fProcess(kPyCharm), |
150 | fStrucFunc(kCTEQ5L), |
e8a8adcd |
151 | fKineBias(0.), |
152 | fTrials(0), |
153 | fTrialsRun(0), |
154 | fQ(0.), |
155 | fX1(0.), |
156 | fX2(0.), |
157 | fEventTime(0.), |
158 | fInteractionRate(0.), |
159 | fTimeWindow(0.), |
160 | fCurSubEvent(0), |
161 | fEventsTime(0), |
162 | fNev(0), |
163 | fFlavorSelect(0), |
164 | fXsection(0.), |
165 | fPythia(0), |
166 | fPtHardMin(0.), |
167 | fPtHardMax(1.e4), |
168 | fYHardMin(-1.e10), |
169 | fYHardMax(1.e10), |
170 | fGinit(kTRUE), |
171 | fGfinal(kTRUE), |
172 | fHadronisation(kTRUE), |
173 | fNpartons(0), |
174 | fReadFromFile(kFALSE), |
175 | fQuench(kFALSE), |
cd07c39b |
176 | fQhat(0.), |
177 | fLength(0.), |
e6fe9b82 |
178 | fImpact(0.), |
e8a8adcd |
179 | fPtKick(1.), |
180 | fFullEvent(kTRUE), |
181 | fDecayer(new AliDecayerPythia()), |
182 | fDebugEventFirst(-1), |
183 | fDebugEventLast(-1), |
184 | fEtMinJet(0.), |
185 | fEtMaxJet(1.e4), |
186 | fEtaMinJet(-20.), |
187 | fEtaMaxJet(20.), |
188 | fPhiMinJet(0.), |
189 | fPhiMaxJet(2.* TMath::Pi()), |
190 | fJetReconstruction(kCell), |
191 | fEtaMinGamma(-20.), |
192 | fEtaMaxGamma(20.), |
193 | fPhiMinGamma(0.), |
194 | fPhiMaxGamma(2. * TMath::Pi()), |
195 | fPycellEtaMax(2.), |
196 | fPycellNEta(274), |
197 | fPycellNPhi(432), |
198 | fPycellThreshold(0.), |
199 | fPycellEtSeed(4.), |
200 | fPycellMinEtJet(10.), |
201 | fPycellMaxRadius(1.), |
202 | fStackFillOpt(kFlavorSelection), |
203 | fFeedDownOpt(kTRUE), |
204 | fFragmentation(kTRUE), |
205 | fSetNuclei(kFALSE), |
206 | fNewMIS(kFALSE), |
207 | fHFoff(kFALSE), |
20e47f08 |
208 | fNucPdf(0), |
e8a8adcd |
209 | fTriggerParticle(0), |
210 | fTriggerEta(0.9), |
700b9416 |
211 | fTriggerMultiplicity(0), |
212 | fTriggerMultiplicityEta(0), |
e8a8adcd |
213 | fCountMode(kCountAll), |
214 | fHeader(0), |
215 | fRL(0), |
ec2c406e |
216 | fFileName(0), |
9fd8e520 |
217 | fFragPhotonInCalo(kFALSE), |
ec2c406e |
218 | fPi0InCalo(kFALSE) , |
90a236ce |
219 | fPhotonInCalo(kFALSE), |
9dfe63b3 |
220 | fEleInEMCAL(kFALSE), |
9fd8e520 |
221 | fCheckEMCAL(kFALSE), |
222 | fCheckPHOS(kFALSE), |
90a236ce |
223 | fCheckPHOSeta(kFALSE), |
9fd8e520 |
224 | fFragPhotonOrPi0MinPt(0), |
90a236ce |
225 | fPhotonMinPt(0), |
9dfe63b3 |
226 | fElectronMinPt(0), |
9fd8e520 |
227 | fPHOSMinPhi(219.), |
228 | fPHOSMaxPhi(321.), |
229 | fPHOSEta(0.13), |
230 | fEMCALMinPhi(79.), |
231 | fEMCALMaxPhi(191.), |
232 | fEMCALEta(0.71) |
8d2cd130 |
233 | { |
234 | // default charm production at 5. 5 TeV |
235 | // semimuonic decay |
236 | // structure function GRVHO |
237 | // |
e7c989e4 |
238 | fEnergyCMS = 5500.; |
8d2cd130 |
239 | fName = "Pythia"; |
240 | fTitle= "Particle Generator using PYTHIA"; |
8d2cd130 |
241 | SetForceDecay(); |
8d2cd130 |
242 | // Set random number generator |
7cdba479 |
243 | if (!AliPythiaRndm::GetPythiaRandom()) |
244 | AliPythiaRndm::SetPythiaRandom(GetRandom()); |
2d9f9817 |
245 | SetNuclei(0,0); |
76d6ba9a |
246 | } |
8d2cd130 |
247 | |
8d2cd130 |
248 | AliGenPythia::~AliGenPythia() |
249 | { |
250 | // Destructor |
9d7108a7 |
251 | if(fEventsTime) delete fEventsTime; |
252 | } |
253 | |
254 | void AliGenPythia::SetInteractionRate(Float_t rate,Float_t timewindow) |
255 | { |
256 | // Generate pileup using user specified rate |
257 | fInteractionRate = rate; |
258 | fTimeWindow = timewindow; |
259 | GeneratePileup(); |
260 | } |
261 | |
262 | void AliGenPythia::GeneratePileup() |
263 | { |
264 | // Generate sub events time for pileup |
265 | fEventsTime = 0; |
266 | if(fInteractionRate == 0.) { |
267 | Warning("GeneratePileup","Zero interaction specified. Skipping pileup generation.\n"); |
268 | return; |
269 | } |
270 | |
271 | Int_t npart = NumberParticles(); |
272 | if(npart < 0) { |
273 | Warning("GeneratePileup","Negative number of particles. Skipping pileup generation.\n"); |
274 | return; |
275 | } |
276 | |
277 | if(fEventsTime) delete fEventsTime; |
278 | fEventsTime = new TArrayF(npart); |
279 | TArrayF &array = *fEventsTime; |
280 | for(Int_t ipart = 0; ipart < npart; ipart++) |
281 | array[ipart] = 0.; |
282 | |
283 | Float_t eventtime = 0.; |
284 | while(1) |
285 | { |
286 | eventtime += (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); |
287 | if(eventtime > fTimeWindow) break; |
288 | array.Set(array.GetSize()+1); |
289 | array[array.GetSize()-1] = eventtime; |
290 | } |
291 | |
292 | eventtime = 0.; |
293 | while(1) |
294 | { |
295 | eventtime -= (AliPythiaRndm::GetPythiaRandom())->Exp(1./fInteractionRate); |
296 | if(TMath::Abs(eventtime) > fTimeWindow) break; |
297 | array.Set(array.GetSize()+1); |
298 | array[array.GetSize()-1] = eventtime; |
299 | } |
300 | |
301 | SetNumberParticles(fEventsTime->GetSize()); |
8d2cd130 |
302 | } |
303 | |
592f8307 |
304 | void AliGenPythia::SetPycellParameters(Float_t etamax, Int_t neta, Int_t nphi, |
305 | Float_t thresh, Float_t etseed, Float_t minet, Float_t r) |
306 | { |
307 | // Set pycell parameters |
308 | fPycellEtaMax = etamax; |
309 | fPycellNEta = neta; |
310 | fPycellNPhi = nphi; |
311 | fPycellThreshold = thresh; |
312 | fPycellEtSeed = etseed; |
313 | fPycellMinEtJet = minet; |
314 | fPycellMaxRadius = r; |
315 | } |
316 | |
317 | |
318 | |
8d2cd130 |
319 | void AliGenPythia::SetEventListRange(Int_t eventFirst, Int_t eventLast) |
320 | { |
321 | // Set a range of event numbers, for which a table |
322 | // of generated particle will be printed |
323 | fDebugEventFirst = eventFirst; |
324 | fDebugEventLast = eventLast; |
325 | if (fDebugEventLast==-1) fDebugEventLast=fDebugEventFirst; |
326 | } |
327 | |
328 | void AliGenPythia::Init() |
329 | { |
330 | // Initialisation |
331 | |
332 | SetMC(AliPythia::Instance()); |
b88f5cea |
333 | fPythia=(AliPythia*) fMCEvGen; |
e2bddf81 |
334 | |
8d2cd130 |
335 | // |
336 | fParentWeight=1./Float_t(fNpart); |
337 | // |
8d2cd130 |
338 | |
339 | |
340 | fPythia->SetCKIN(3,fPtHardMin); |
341 | fPythia->SetCKIN(4,fPtHardMax); |
342 | fPythia->SetCKIN(7,fYHardMin); |
343 | fPythia->SetCKIN(8,fYHardMax); |
344 | |
20e47f08 |
345 | if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget, fNucPdf); |
8d2cd130 |
346 | // Fragmentation? |
347 | if (fFragmentation) { |
348 | fPythia->SetMSTP(111,1); |
349 | } else { |
350 | fPythia->SetMSTP(111,0); |
351 | } |
352 | |
353 | |
354 | // initial state radiation |
355 | fPythia->SetMSTP(61,fGinit); |
356 | // final state radiation |
357 | fPythia->SetMSTP(71,fGfinal); |
358 | // pt - kick |
359 | if (fPtKick > 0.) { |
360 | fPythia->SetMSTP(91,1); |
688950ef |
361 | fPythia->SetPARP(91,fPtKick); |
362 | fPythia->SetPARP(93, 4. * fPtKick); |
8d2cd130 |
363 | } else { |
364 | fPythia->SetMSTP(91,0); |
365 | } |
366 | |
5fa4b20b |
367 | |
368 | if (fReadFromFile) { |
369 | fRL = AliRunLoader::Open(fFileName, "Partons"); |
370 | fRL->LoadKinematics(); |
371 | fRL->LoadHeader(); |
372 | } else { |
373 | fRL = 0x0; |
374 | } |
fdea4387 |
375 | // |
376 | fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc); |
377 | // Forward Paramters to the AliPythia object |
378 | fDecayer->SetForceDecay(fForceDecay); |
beac474c |
379 | // Switch off Heavy Flavors on request |
380 | if (fHFoff) { |
51387949 |
381 | // Maximum number of quark flavours used in pdf |
beac474c |
382 | fPythia->SetMSTP(58, 3); |
51387949 |
383 | // Maximum number of flavors that can be used in showers |
beac474c |
384 | fPythia->SetMSTJ(45, 3); |
51387949 |
385 | // Switch off g->QQbar splitting in decay table |
386 | ((AliDecayerPythia*) fDecayer)->HeavyFlavourOff(); |
beac474c |
387 | } |
fdea4387 |
388 | |
51387949 |
389 | fDecayer->Init(); |
390 | |
8d2cd130 |
391 | |
392 | // Parent and Children Selection |
393 | switch (fProcess) |
394 | { |
65f2626c |
395 | case kPyOldUEQ2ordered: |
396 | case kPyOldUEQ2ordered2: |
397 | case kPyOldPopcorn: |
398 | break; |
8d2cd130 |
399 | case kPyCharm: |
400 | case kPyCharmUnforced: |
adf4d898 |
401 | case kPyCharmPbPbMNR: |
aabc7187 |
402 | case kPyCharmpPbMNR: |
e0e89f40 |
403 | case kPyCharmppMNR: |
404 | case kPyCharmppMNRwmi: |
8d2cd130 |
405 | fParentSelect[0] = 411; |
406 | fParentSelect[1] = 421; |
407 | fParentSelect[2] = 431; |
408 | fParentSelect[3] = 4122; |
9ccc3d0e |
409 | fParentSelect[4] = 4232; |
410 | fParentSelect[5] = 4132; |
411 | fParentSelect[6] = 4332; |
8d2cd130 |
412 | fFlavorSelect = 4; |
413 | break; |
adf4d898 |
414 | case kPyD0PbPbMNR: |
415 | case kPyD0pPbMNR: |
416 | case kPyD0ppMNR: |
8d2cd130 |
417 | fParentSelect[0] = 421; |
418 | fFlavorSelect = 4; |
419 | break; |
90d7b703 |
420 | case kPyDPlusPbPbMNR: |
421 | case kPyDPluspPbMNR: |
422 | case kPyDPlusppMNR: |
423 | fParentSelect[0] = 411; |
424 | fFlavorSelect = 4; |
425 | break; |
e0e89f40 |
426 | case kPyDPlusStrangePbPbMNR: |
427 | case kPyDPlusStrangepPbMNR: |
428 | case kPyDPlusStrangeppMNR: |
429 | fParentSelect[0] = 431; |
430 | fFlavorSelect = 4; |
431 | break; |
8d2cd130 |
432 | case kPyBeauty: |
9dfe63b3 |
433 | case kPyBeautyJets: |
adf4d898 |
434 | case kPyBeautyPbPbMNR: |
435 | case kPyBeautypPbMNR: |
436 | case kPyBeautyppMNR: |
e0e89f40 |
437 | case kPyBeautyppMNRwmi: |
8d2cd130 |
438 | fParentSelect[0]= 511; |
439 | fParentSelect[1]= 521; |
440 | fParentSelect[2]= 531; |
441 | fParentSelect[3]= 5122; |
442 | fParentSelect[4]= 5132; |
443 | fParentSelect[5]= 5232; |
444 | fParentSelect[6]= 5332; |
445 | fFlavorSelect = 5; |
446 | break; |
447 | case kPyBeautyUnforced: |
448 | fParentSelect[0] = 511; |
449 | fParentSelect[1] = 521; |
450 | fParentSelect[2] = 531; |
451 | fParentSelect[3] = 5122; |
452 | fParentSelect[4] = 5132; |
453 | fParentSelect[5] = 5232; |
454 | fParentSelect[6] = 5332; |
455 | fFlavorSelect = 5; |
456 | break; |
457 | case kPyJpsiChi: |
458 | case kPyJpsi: |
459 | fParentSelect[0] = 443; |
460 | break; |
f529e69b |
461 | case kPyMbDefault: |
8d2cd130 |
462 | case kPyMb: |
04081a91 |
463 | case kPyMbWithDirectPhoton: |
8d2cd130 |
464 | case kPyMbNonDiffr: |
d7de4a67 |
465 | case kPyMbMSEL1: |
8d2cd130 |
466 | case kPyJets: |
467 | case kPyDirectGamma: |
e33acb67 |
468 | case kPyLhwgMb: |
8d2cd130 |
469 | break; |
589380c6 |
470 | case kPyW: |
0f6ee828 |
471 | case kPyZ: |
589380c6 |
472 | break; |
8d2cd130 |
473 | } |
474 | // |
592f8307 |
475 | // |
476 | // JetFinder for Trigger |
477 | // |
478 | // Configure detector (EMCAL like) |
479 | // |
d7de4a67 |
480 | fPythia->SetPARU(51, fPycellEtaMax); |
481 | fPythia->SetMSTU(51, fPycellNEta); |
482 | fPythia->SetMSTU(52, fPycellNPhi); |
592f8307 |
483 | // |
484 | // Configure Jet Finder |
485 | // |
d7de4a67 |
486 | fPythia->SetPARU(58, fPycellThreshold); |
487 | fPythia->SetPARU(52, fPycellEtSeed); |
488 | fPythia->SetPARU(53, fPycellMinEtJet); |
489 | fPythia->SetPARU(54, fPycellMaxRadius); |
490 | fPythia->SetMSTU(54, 2); |
592f8307 |
491 | // |
8d2cd130 |
492 | // This counts the total number of calls to Pyevnt() per run. |
493 | fTrialsRun = 0; |
494 | fQ = 0.; |
495 | fX1 = 0.; |
496 | fX2 = 0.; |
497 | fNev = 0 ; |
498 | // |
1d568bc2 |
499 | // |
500 | // |
8d2cd130 |
501 | AliGenMC::Init(); |
1d568bc2 |
502 | // |
503 | // |
504 | // |
505 | if (fSetNuclei) { |
506 | fDyBoost = 0; |
507 | Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n"); |
508 | } |
d7de4a67 |
509 | |
cd07c39b |
510 | fPythia->SetPARJ(200, 0.0); |
511 | fPythia->SetPARJ(199, 0.0); |
512 | fPythia->SetPARJ(198, 0.0); |
513 | fPythia->SetPARJ(197, 0.0); |
514 | |
515 | if (fQuench == 1) { |
5fa4b20b |
516 | fPythia->InitQuenching(0., 0.1, 0.6e6, 0); |
32d6ef7d |
517 | } |
3a709cfa |
518 | |
b976f7d8 |
519 | if (fQuench == 3) { |
520 | // Nestor's change of the splittings |
521 | fPythia->SetPARJ(200, 0.8); |
522 | fPythia->SetMSTJ(41, 1); // QCD radiation only |
523 | fPythia->SetMSTJ(42, 2); // angular ordering |
524 | fPythia->SetMSTJ(44, 2); // option to run alpha_s |
525 | fPythia->SetMSTJ(47, 0); // No correction back to hard scattering element |
526 | fPythia->SetMSTJ(50, 0); // No coherence in first branching |
527 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers |
cd07c39b |
528 | } else if (fQuench == 4) { |
529 | // Armesto-Cunqueiro-Salgado change of the splittings. |
530 | AliFastGlauber* glauber = AliFastGlauber::Instance(); |
531 | glauber->Init(2); |
532 | //read and store transverse almonds corresponding to differnt |
533 | //impact parameters. |
cd07c39b |
534 | glauber->SetCentralityClass(0.,0.1); |
535 | fPythia->SetPARJ(200, 1.); |
536 | fPythia->SetPARJ(198, fQhat); |
537 | fPythia->SetPARJ(199, fLength); |
cd07c39b |
538 | fPythia->SetMSTJ(42, 2); // angular ordering |
539 | fPythia->SetMSTJ(44, 2); // option to run alpha_s |
cd07c39b |
540 | fPythia->SetPARJ(82, 1.); // Cut off for parton showers |
b976f7d8 |
541 | } |
8d2cd130 |
542 | } |
543 | |
544 | void AliGenPythia::Generate() |
545 | { |
546 | // Generate one event |
19ef8cf0 |
547 | if (!fPythia) fPythia=(AliPythia*) fMCEvGen; |
8d2cd130 |
548 | fDecayer->ForceDecay(); |
549 | |
550 | Float_t polar[3] = {0,0,0}; |
551 | Float_t origin[3] = {0,0,0}; |
a920faf9 |
552 | Float_t p[4]; |
8d2cd130 |
553 | // converts from mm/c to s |
554 | const Float_t kconv=0.001/2.999792458e8; |
555 | // |
556 | Int_t nt=0; |
557 | Int_t jev=0; |
558 | Int_t j, kf; |
559 | fTrials=0; |
f913ec4f |
560 | fEventTime = 0.; |
561 | |
2590ccf9 |
562 | |
8d2cd130 |
563 | |
564 | // Set collision vertex position |
2590ccf9 |
565 | if (fVertexSmear == kPerEvent) Vertex(); |
566 | |
8d2cd130 |
567 | // event loop |
568 | while(1) |
569 | { |
32d6ef7d |
570 | // |
5fa4b20b |
571 | // Produce event |
32d6ef7d |
572 | // |
32d6ef7d |
573 | // |
5fa4b20b |
574 | // Switch hadronisation off |
575 | // |
576 | fPythia->SetMSTJ(1, 0); |
cd07c39b |
577 | |
578 | if (fQuench ==4){ |
579 | Double_t bimp; |
580 | // Quenching comes through medium-modified splitting functions. |
581 | AliFastGlauber::Instance()->GetRandomBHard(bimp); |
e6fe9b82 |
582 | fPythia->SetPARJ(197, bimp); |
583 | fImpact = bimp; |
cd07c39b |
584 | } |
32d6ef7d |
585 | // |
5fa4b20b |
586 | // Either produce new event or read partons from file |
587 | // |
588 | if (!fReadFromFile) { |
beac474c |
589 | if (!fNewMIS) { |
590 | fPythia->Pyevnt(); |
591 | } else { |
592 | fPythia->Pyevnw(); |
593 | } |
5fa4b20b |
594 | fNpartons = fPythia->GetN(); |
595 | } else { |
33c3c91a |
596 | printf("Loading Event %d\n",AliRunLoader::Instance()->GetEventNumber()); |
597 | fRL->GetEvent(AliRunLoader::Instance()->GetEventNumber()); |
5fa4b20b |
598 | fPythia->SetN(0); |
599 | LoadEvent(fRL->Stack(), 0 , 1); |
600 | fPythia->Pyedit(21); |
601 | } |
602 | |
32d6ef7d |
603 | // |
604 | // Run quenching routine |
605 | // |
5fa4b20b |
606 | if (fQuench == 1) { |
607 | fPythia->Quench(); |
608 | } else if (fQuench == 2){ |
609 | fPythia->Pyquen(208., 0, 0.); |
b976f7d8 |
610 | } else if (fQuench == 3) { |
611 | // Quenching is via multiplicative correction of the splittings |
5fa4b20b |
612 | } |
b976f7d8 |
613 | |
32d6ef7d |
614 | // |
5fa4b20b |
615 | // Switch hadronisation on |
32d6ef7d |
616 | // |
20e47f08 |
617 | if (fHadronisation) { |
618 | fPythia->SetMSTJ(1, 1); |
5fa4b20b |
619 | // |
620 | // .. and perform hadronisation |
aea21c57 |
621 | // printf("Calling hadronisation %d\n", fPythia->GetN()); |
20e47f08 |
622 | fPythia->Pyexec(); |
623 | } |
8d2cd130 |
624 | fTrials++; |
8507138f |
625 | fPythia->ImportParticles(&fParticles,"All"); |
1d568bc2 |
626 | Boost(); |
8d2cd130 |
627 | // |
628 | // |
629 | // |
630 | Int_t i; |
631 | |
dbd64db6 |
632 | fNprimaries = 0; |
8507138f |
633 | Int_t np = fParticles.GetEntriesFast(); |
5fa4b20b |
634 | |
7c21f297 |
635 | if (np == 0) continue; |
8d2cd130 |
636 | // |
2590ccf9 |
637 | |
8d2cd130 |
638 | // |
639 | Int_t* pParent = new Int_t[np]; |
640 | Int_t* pSelected = new Int_t[np]; |
641 | Int_t* trackIt = new Int_t[np]; |
5fa4b20b |
642 | for (i = 0; i < np; i++) { |
8d2cd130 |
643 | pParent[i] = -1; |
644 | pSelected[i] = 0; |
645 | trackIt[i] = 0; |
646 | } |
647 | |
648 | Int_t nc = 0; // Total n. of selected particles |
649 | Int_t nParents = 0; // Selected parents |
650 | Int_t nTkbles = 0; // Trackable particles |
f529e69b |
651 | if (fProcess != kPyMbDefault && |
652 | fProcess != kPyMb && |
04081a91 |
653 | fProcess != kPyMbWithDirectPhoton && |
f529e69b |
654 | fProcess != kPyJets && |
8d2cd130 |
655 | fProcess != kPyDirectGamma && |
589380c6 |
656 | fProcess != kPyMbNonDiffr && |
d7de4a67 |
657 | fProcess != kPyMbMSEL1 && |
f529e69b |
658 | fProcess != kPyW && |
659 | fProcess != kPyZ && |
660 | fProcess != kPyCharmppMNRwmi && |
9dfe63b3 |
661 | fProcess != kPyBeautyppMNRwmi && |
662 | fProcess != kPyBeautyJets) { |
8d2cd130 |
663 | |
5fa4b20b |
664 | for (i = 0; i < np; i++) { |
8507138f |
665 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 |
666 | Int_t ks = iparticle->GetStatusCode(); |
667 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
668 | // No initial state partons |
669 | if (ks==21) continue; |
670 | // |
671 | // Heavy Flavor Selection |
672 | // |
673 | // quark ? |
674 | kf = TMath::Abs(kf); |
675 | Int_t kfl = kf; |
9ff6c04c |
676 | // Resonance |
f913ec4f |
677 | |
9ff6c04c |
678 | if (kfl > 100000) kfl %= 100000; |
183a5ca9 |
679 | if (kfl > 10000) kfl %= 10000; |
8d2cd130 |
680 | // meson ? |
681 | if (kfl > 10) kfl/=100; |
682 | // baryon |
683 | if (kfl > 10) kfl/=10; |
8d2cd130 |
684 | Int_t ipa = iparticle->GetFirstMother()-1; |
685 | Int_t kfMo = 0; |
f913ec4f |
686 | // |
687 | // Establish mother daughter relation between heavy quarks and mesons |
688 | // |
689 | if (kf >= fFlavorSelect && kf <= 6) { |
690 | Int_t idau = iparticle->GetFirstDaughter() - 1; |
691 | if (idau > -1) { |
8507138f |
692 | TParticle* daughter = (TParticle *) fParticles.At(idau); |
f913ec4f |
693 | Int_t pdgD = daughter->GetPdgCode(); |
694 | if (pdgD == 91 || pdgD == 92) { |
695 | Int_t jmin = daughter->GetFirstDaughter() - 1; |
696 | Int_t jmax = daughter->GetLastDaughter() - 1; |
2ab330c9 |
697 | for (Int_t jp = jmin; jp <= jmax; jp++) |
698 | ((TParticle *) fParticles.At(jp))->SetFirstMother(i+1); |
f913ec4f |
699 | } // is string or cluster |
700 | } // has daughter |
701 | } // heavy quark |
8d2cd130 |
702 | |
f913ec4f |
703 | |
8d2cd130 |
704 | if (ipa > -1) { |
8507138f |
705 | TParticle * mother = (TParticle *) fParticles.At(ipa); |
8d2cd130 |
706 | kfMo = TMath::Abs(mother->GetPdgCode()); |
707 | } |
f913ec4f |
708 | |
8d2cd130 |
709 | // What to keep in Stack? |
710 | Bool_t flavorOK = kFALSE; |
711 | Bool_t selectOK = kFALSE; |
712 | if (fFeedDownOpt) { |
32d6ef7d |
713 | if (kfl >= fFlavorSelect) flavorOK = kTRUE; |
8d2cd130 |
714 | } else { |
32d6ef7d |
715 | if (kfl > fFlavorSelect) { |
716 | nc = -1; |
717 | break; |
718 | } |
719 | if (kfl == fFlavorSelect) flavorOK = kTRUE; |
8d2cd130 |
720 | } |
721 | switch (fStackFillOpt) { |
722 | case kFlavorSelection: |
32d6ef7d |
723 | selectOK = kTRUE; |
724 | break; |
8d2cd130 |
725 | case kParentSelection: |
32d6ef7d |
726 | if (ParentSelected(kf) || kf <= 10) selectOK = kTRUE; |
727 | break; |
8d2cd130 |
728 | } |
729 | if (flavorOK && selectOK) { |
730 | // |
731 | // Heavy flavor hadron or quark |
732 | // |
733 | // Kinematic seletion on final state heavy flavor mesons |
734 | if (ParentSelected(kf) && !KinematicSelection(iparticle, 0)) |
735 | { |
9ff6c04c |
736 | continue; |
8d2cd130 |
737 | } |
738 | pSelected[i] = 1; |
739 | if (ParentSelected(kf)) ++nParents; // Update parent count |
740 | // printf("\n particle (HF) %d %d %d", i, pSelected[i], kf); |
741 | } else { |
742 | // Kinematic seletion on decay products |
743 | if (fCutOnChild && ParentSelected(kfMo) && ChildSelected(kf) |
9ff6c04c |
744 | && !KinematicSelection(iparticle, 1)) |
8d2cd130 |
745 | { |
9ff6c04c |
746 | continue; |
8d2cd130 |
747 | } |
748 | // |
749 | // Decay products |
750 | // Select if mother was selected and is not tracked |
751 | |
752 | if (pSelected[ipa] && |
753 | !trackIt[ipa] && // mother will be tracked ? |
754 | kfMo != 5 && // mother is b-quark, don't store fragments |
755 | kfMo != 4 && // mother is c-quark, don't store fragments |
756 | kf != 92) // don't store string |
757 | { |
758 | // |
759 | // Semi-stable or de-selected: diselect decay products: |
760 | // |
761 | // |
762 | if (pSelected[i] == -1 || fDecayer->GetLifetime(kf) > fMaxLifeTime) |
763 | { |
764 | Int_t ipF = iparticle->GetFirstDaughter(); |
765 | Int_t ipL = iparticle->GetLastDaughter(); |
766 | if (ipF > 0) for (j = ipF-1; j < ipL; j++) pSelected[j] = -1; |
767 | } |
768 | // printf("\n particle (decay) %d %d %d", i, pSelected[i], kf); |
769 | pSelected[i] = (pSelected[i] == -1) ? 0 : 1; |
770 | } |
771 | } |
772 | if (pSelected[i] == -1) pSelected[i] = 0; |
773 | if (!pSelected[i]) continue; |
774 | // Count quarks only if you did not include fragmentation |
775 | if (fFragmentation && kf <= 10) continue; |
9ff6c04c |
776 | |
8d2cd130 |
777 | nc++; |
778 | // Decision on tracking |
779 | trackIt[i] = 0; |
780 | // |
781 | // Track final state particle |
782 | if (ks == 1) trackIt[i] = 1; |
783 | // Track semi-stable particles |
d25cfd65 |
784 | if ((ks == 1) || (fDecayer->GetLifetime(kf) > fMaxLifeTime)) trackIt[i] = 1; |
8d2cd130 |
785 | // Track particles selected by process if undecayed. |
786 | if (fForceDecay == kNoDecay) { |
787 | if (ParentSelected(kf)) trackIt[i] = 1; |
788 | } else { |
789 | if (ParentSelected(kf)) trackIt[i] = 0; |
790 | } |
791 | if (trackIt[i] == 1) ++nTkbles; // Update trackable counter |
792 | // |
793 | // |
794 | |
795 | } // particle selection loop |
796 | if (nc > 0) { |
797 | for (i = 0; i<np; i++) { |
798 | if (!pSelected[i]) continue; |
8507138f |
799 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 |
800 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
801 | Int_t ks = iparticle->GetStatusCode(); |
802 | p[0] = iparticle->Px(); |
803 | p[1] = iparticle->Py(); |
804 | p[2] = iparticle->Pz(); |
a920faf9 |
805 | p[3] = iparticle->Energy(); |
806 | |
2590ccf9 |
807 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
808 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] |
809 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] |
810 | |
8d2cd130 |
811 | Float_t tof = kconv*iparticle->T(); |
812 | Int_t ipa = iparticle->GetFirstMother()-1; |
813 | Int_t iparent = (ipa > -1) ? pParent[ipa] : -1; |
a920faf9 |
814 | |
815 | PushTrack(fTrackIt*trackIt[i], iparent, kf, |
816 | p[0], p[1], p[2], p[3], |
817 | origin[0], origin[1], origin[2], tof, |
818 | polar[0], polar[1], polar[2], |
819 | kPPrimary, nt, 1., ks); |
8d2cd130 |
820 | pParent[i] = nt; |
dbd64db6 |
821 | KeepTrack(nt); |
822 | fNprimaries++; |
642f15cf |
823 | } // PushTrack loop |
8d2cd130 |
824 | } |
825 | } else { |
826 | nc = GenerateMB(); |
827 | } // mb ? |
f913ec4f |
828 | |
829 | GetSubEventTime(); |
8d2cd130 |
830 | |
234f6d32 |
831 | delete[] pParent; |
832 | delete[] pSelected; |
833 | delete[] trackIt; |
8d2cd130 |
834 | |
835 | if (nc > 0) { |
836 | switch (fCountMode) { |
837 | case kCountAll: |
838 | // printf(" Count all \n"); |
839 | jev += nc; |
840 | break; |
841 | case kCountParents: |
842 | // printf(" Count parents \n"); |
843 | jev += nParents; |
844 | break; |
845 | case kCountTrackables: |
846 | // printf(" Count trackable \n"); |
847 | jev += nTkbles; |
848 | break; |
849 | } |
850 | if (jev >= fNpart || fNpart == -1) { |
851 | fKineBias=Float_t(fNpart)/Float_t(fTrials); |
e0e89f40 |
852 | |
8d2cd130 |
853 | fQ += fPythia->GetVINT(51); |
854 | fX1 += fPythia->GetVINT(41); |
855 | fX2 += fPythia->GetVINT(42); |
856 | fTrialsRun += fTrials; |
857 | fNev++; |
858 | MakeHeader(); |
859 | break; |
860 | } |
861 | } |
862 | } // event loop |
863 | SetHighWaterMark(nt); |
864 | // adjust weight due to kinematic selection |
b88f5cea |
865 | // AdjustWeights(); |
8d2cd130 |
866 | // get cross-section |
867 | fXsection=fPythia->GetPARI(1); |
868 | } |
869 | |
870 | Int_t AliGenPythia::GenerateMB() |
871 | { |
872 | // |
873 | // Min Bias selection and other global selections |
874 | // |
875 | Int_t i, kf, nt, iparent; |
876 | Int_t nc = 0; |
bf950da8 |
877 | Float_t p[4]; |
8d2cd130 |
878 | Float_t polar[3] = {0,0,0}; |
879 | Float_t origin[3] = {0,0,0}; |
880 | // converts from mm/c to s |
881 | const Float_t kconv=0.001/2.999792458e8; |
882 | |
e0e89f40 |
883 | |
884 | |
8507138f |
885 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
aea21c57 |
886 | |
5fa4b20b |
887 | |
e0e89f40 |
888 | |
8d2cd130 |
889 | Int_t* pParent = new Int_t[np]; |
890 | for (i=0; i< np; i++) pParent[i] = -1; |
9dfe63b3 |
891 | // |
892 | //TO BE CHECKED: Should we require this for Beauty Jets? |
893 | // |
894 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets) { |
8507138f |
895 | TParticle* jet1 = (TParticle *) fParticles.At(6); |
896 | TParticle* jet2 = (TParticle *) fParticles.At(7); |
234f6d32 |
897 | if (!CheckTrigger(jet1, jet2)) { |
898 | delete [] pParent; |
899 | return 0; |
900 | } |
8d2cd130 |
901 | } |
e0e89f40 |
902 | |
9fd8e520 |
903 | // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL |
904 | if (fProcess == kPyJets && (fFragPhotonInCalo || fPi0InCalo) ) { |
ec2c406e |
905 | |
906 | Bool_t ok = kFALSE; |
907 | |
908 | Int_t pdg = 0; |
9fd8e520 |
909 | if (fFragPhotonInCalo) pdg = 22 ; // Photon |
82e0bdff |
910 | else if (fPi0InCalo) pdg = 111 ; // Pi0 |
ec2c406e |
911 | |
912 | for (i=0; i< np; i++) { |
8507138f |
913 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
ec2c406e |
914 | if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && |
9fd8e520 |
915 | iparticle->Pt() > fFragPhotonOrPi0MinPt){ |
562cbbcf |
916 | Int_t imother = iparticle->GetFirstMother() - 1; |
8507138f |
917 | TParticle* pmother = (TParticle *) fParticles.At(imother); |
9fd8e520 |
918 | if(pdg == 111 || |
82e0bdff |
919 | (pdg == 22 && pmother->GetStatusCode() != 11)) //No photon from hadron decay |
9fd8e520 |
920 | { |
921 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
82e0bdff |
922 | Float_t eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax |
9fd8e520 |
923 | if((fCheckEMCAL && IsInEMCAL(phi,eta)) || |
924 | (fCheckPHOS && IsInPHOS(phi,eta)) ) |
925 | ok =kTRUE; |
926 | } |
ec2c406e |
927 | } |
928 | } |
929 | if(!ok) |
930 | return 0; |
931 | } |
9dfe63b3 |
932 | |
933 | // Select beauty jets with electron in EMCAL |
934 | if (fProcess == kPyBeautyJets && fEleInEMCAL) { |
935 | |
936 | Bool_t ok = kFALSE; |
937 | |
938 | Int_t pdg = 11; //electron |
939 | |
70574ff8 |
940 | Float_t pt = 0.; |
941 | Float_t eta = 0.; |
942 | Float_t phi = 0.; |
9dfe63b3 |
943 | for (i=0; i< np; i++) { |
944 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
945 | if(iparticle->GetStatusCode()==1 && TMath::Abs(iparticle->GetPdgCode())==pdg && |
946 | iparticle->Pt() > fElectronMinPt){ |
947 | pt = iparticle->Pt(); |
948 | phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
949 | eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax |
950 | if(IsInEMCAL(phi,eta)) |
951 | ok =kTRUE; |
952 | } |
953 | } |
954 | if(!ok) |
955 | return 0; |
956 | AliDebug(5,Form("Found an electron jet (pt,eta,phi) = (%f,%f,%f)",pt,eta,phi)); |
957 | } |
ec2c406e |
958 | |
700b9416 |
959 | // Check for minimum multiplicity |
960 | if (fTriggerMultiplicity > 0) { |
961 | Int_t multiplicity = 0; |
962 | for (i = 0; i < np; i++) { |
8507138f |
963 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
700b9416 |
964 | |
965 | Int_t statusCode = iparticle->GetStatusCode(); |
966 | |
967 | // Initial state particle |
968 | if (statusCode > 20) |
969 | continue; |
970 | |
971 | // skip quarks and gluons |
972 | Int_t pdgCode = TMath::Abs(iparticle->GetPdgCode()); |
973 | if (pdgCode <= 10 || pdgCode == 21) |
974 | continue; |
975 | |
976 | if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta) |
977 | continue; |
978 | |
979 | TParticlePDG* pdgPart = iparticle->GetPDG(); |
980 | if (pdgPart && pdgPart->Charge() == 0) |
981 | continue; |
982 | |
983 | ++multiplicity; |
984 | } |
985 | |
986 | if (multiplicity < fTriggerMultiplicity) { |
987 | delete [] pParent; |
988 | return 0; |
989 | } |
990 | |
991 | Printf("Triggered on event with multiplicity of %d > %d", multiplicity, fTriggerMultiplicity); |
992 | } |
90a236ce |
993 | |
994 | // Select events with a photon pt > min pt going to PHOS eta acceptance or exactly PHOS eta phi |
995 | if ((fProcess == kPyJets || fProcess == kPyDirectGamma) && fPhotonInCalo && (fCheckPHOSeta || fCheckPHOS)){ |
996 | |
997 | Bool_t okd = kFALSE; |
998 | |
999 | Int_t pdg = 22; |
1000 | Int_t iphcand = -1; |
1001 | for (i=0; i< np; i++) { |
8507138f |
1002 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce |
1003 | Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees |
1004 | Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax |
1005 | |
1006 | if(iparticle->GetStatusCode() == 1 |
1007 | && iparticle->GetPdgCode() == pdg |
1008 | && iparticle->Pt() > fPhotonMinPt |
04a26b0a |
1009 | && eta < fPHOSEta){ |
90a236ce |
1010 | |
1011 | // first check if the photon is in PHOS phi |
1012 | if(IsInPHOS(phi,eta)){ |
1013 | okd = kTRUE; |
1014 | break; |
1015 | } |
1016 | if(fCheckPHOSeta) iphcand = i; // candiate photon to rotate in phi |
1017 | |
1018 | } |
1019 | } |
1020 | |
1021 | if(!okd && iphcand != -1) // execute rotation in phi |
1022 | RotatePhi(iphcand,okd); |
1023 | |
1024 | if(!okd) |
1025 | return 0; |
1026 | } |
1027 | |
7ce1321b |
1028 | if (fTriggerParticle) { |
1029 | Bool_t triggered = kFALSE; |
1030 | for (i = 0; i < np; i++) { |
8507138f |
1031 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
7ce1321b |
1032 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
38db0ee6 |
1033 | if (kf != fTriggerParticle) continue; |
7ce1321b |
1034 | if (iparticle->Pt() == 0.) continue; |
1035 | if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue; |
1036 | triggered = kTRUE; |
1037 | break; |
1038 | } |
234f6d32 |
1039 | if (!triggered) { |
1040 | delete [] pParent; |
1041 | return 0; |
1042 | } |
7ce1321b |
1043 | } |
e0e89f40 |
1044 | |
1045 | |
1046 | // Check if there is a ccbar or bbbar pair with at least one of the two |
1047 | // in fYMin < y < fYMax |
9dfe63b3 |
1048 | // |
1049 | // TO BE CHECKED: Should we require this for beauty jets? |
1050 | // |
1051 | if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi || fProcess == kPyBeautyJets) { |
9ccc3d0e |
1052 | TParticle *partCheck; |
1053 | TParticle *mother; |
e0e89f40 |
1054 | Bool_t theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE; |
9ccc3d0e |
1055 | Bool_t theChild=kFALSE; |
1056 | Float_t y; |
1057 | Int_t pdg,mpdg,mpdgUpperFamily; |
e0e89f40 |
1058 | for(i=0; i<np; i++) { |
9ccc3d0e |
1059 | partCheck = (TParticle*)fParticles.At(i); |
1060 | pdg = partCheck->GetPdgCode(); |
1061 | if(TMath::Abs(pdg) == fFlavorSelect) { // quark |
1062 | if(pdg>0) { theQ=kTRUE; } else { theQbar=kTRUE; } |
1063 | y = 0.5*TMath::Log((partCheck->Energy()+partCheck->Pz()+1.e-13)/ |
1064 | (partCheck->Energy()-partCheck->Pz()+1.e-13)); |
1065 | if(y>fYMin && y<fYMax) inYcut=kTRUE; |
1066 | } |
1067 | if(fCutOnChild && TMath::Abs(pdg) == fPdgCodeParticleforAcceptanceCut) { |
1068 | Int_t mi = partCheck->GetFirstMother() - 1; |
1069 | if(mi<0) continue; |
1070 | mother = (TParticle*)fParticles.At(mi); |
1071 | mpdg=TMath::Abs(mother->GetPdgCode()); |
75fde694 |
1072 | mpdgUpperFamily=(mpdg>1000 ? mpdg+1000 : mpdg+100); // keep e from c from b |
9ccc3d0e |
1073 | if ( ParentSelected(mpdg) || |
1074 | (fFlavorSelect==5 && ParentSelected(mpdgUpperFamily))) { |
1075 | if (KinematicSelection(partCheck,1)) { |
1076 | theChild=kTRUE; |
1077 | } |
1078 | } |
1079 | } |
e0e89f40 |
1080 | } |
9ccc3d0e |
1081 | if (!theQ || !theQbar || !inYcut) { // one of the c/b conditions not satisfied |
234f6d32 |
1082 | delete[] pParent; |
e0e89f40 |
1083 | return 0; |
1084 | } |
9ccc3d0e |
1085 | if (fCutOnChild && !theChild) { // one of the child conditions not satisfied |
1086 | delete[] pParent; |
1087 | return 0; |
1088 | } |
1089 | |
e0e89f40 |
1090 | } |
aea21c57 |
1091 | |
0f6ee828 |
1092 | //Introducing child cuts in case kPyW, kPyZ, kPyMb, and kPyMbNonDiff |
f529e69b |
1093 | if ( (fProcess == kPyW || |
1094 | fProcess == kPyZ || |
1095 | fProcess == kPyMbDefault || |
1096 | fProcess == kPyMb || |
04081a91 |
1097 | fProcess == kPyMbWithDirectPhoton || |
f529e69b |
1098 | fProcess == kPyMbNonDiffr) |
0f6ee828 |
1099 | && (fCutOnChild == 1) ) { |
1100 | if ( !CheckKinematicsOnChild() ) { |
234f6d32 |
1101 | delete[] pParent; |
0f6ee828 |
1102 | return 0; |
1103 | } |
aea21c57 |
1104 | } |
1105 | |
1106 | |
f913ec4f |
1107 | for (i = 0; i < np; i++) { |
8d2cd130 |
1108 | Int_t trackIt = 0; |
8507138f |
1109 | TParticle * iparticle = (TParticle *) fParticles.At(i); |
8d2cd130 |
1110 | kf = CheckPDGCode(iparticle->GetPdgCode()); |
1111 | Int_t ks = iparticle->GetStatusCode(); |
1112 | Int_t km = iparticle->GetFirstMother(); |
1113 | if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) || |
1114 | (ks != 1) || |
9dfe63b3 |
1115 | // |
1116 | //TO BE CHECKED: Should we require this for beauty jets? |
1117 | // |
1118 | ((fProcess == kPyJets || fProcess == kPyBeautyJets) && ks == 21 && km == 0 && i>1)) { |
8d2cd130 |
1119 | nc++; |
1120 | if (ks == 1) trackIt = 1; |
1121 | Int_t ipa = iparticle->GetFirstMother()-1; |
1122 | |
1123 | iparent = (ipa > -1) ? pParent[ipa] : -1; |
1124 | |
1125 | // |
1126 | // store track information |
1127 | p[0] = iparticle->Px(); |
1128 | p[1] = iparticle->Py(); |
1129 | p[2] = iparticle->Pz(); |
a920faf9 |
1130 | p[3] = iparticle->Energy(); |
1406f599 |
1131 | |
a920faf9 |
1132 | |
2590ccf9 |
1133 | origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm] |
1134 | origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm] |
1135 | origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm] |
1136 | |
f913ec4f |
1137 | Float_t tof = fEventTime + kconv * iparticle->T(); |
a920faf9 |
1138 | |
1139 | PushTrack(fTrackIt*trackIt, iparent, kf, |
1140 | p[0], p[1], p[2], p[3], |
1141 | origin[0], origin[1], origin[2], tof, |
1142 | polar[0], polar[1], polar[2], |
1143 | kPPrimary, nt, 1., ks); |
dbd64db6 |
1144 | fNprimaries++; |
8d2cd130 |
1145 | KeepTrack(nt); |
1146 | pParent[i] = nt; |
f913ec4f |
1147 | SetHighWaterMark(nt); |
1148 | |
8d2cd130 |
1149 | } // select particle |
1150 | } // particle loop |
1151 | |
234f6d32 |
1152 | delete[] pParent; |
e0e89f40 |
1153 | |
f913ec4f |
1154 | return 1; |
8d2cd130 |
1155 | } |
1156 | |
1157 | |
1158 | void AliGenPythia::FinishRun() |
1159 | { |
1160 | // Print x-section summary |
1161 | fPythia->Pystat(1); |
2779fc64 |
1162 | |
1163 | if (fNev > 0.) { |
1164 | fQ /= fNev; |
1165 | fX1 /= fNev; |
1166 | fX2 /= fNev; |
1167 | } |
1168 | |
8d2cd130 |
1169 | printf("\nTotal number of Pyevnt() calls %d\n", fTrialsRun); |
1170 | printf("\nMean Q, x1, x2: %f %f %f\n", fQ, fX1, fX2); |
8d2cd130 |
1171 | } |
1172 | |
7184e472 |
1173 | void AliGenPythia::AdjustWeights() const |
8d2cd130 |
1174 | { |
1175 | // Adjust the weights after generation of all events |
1176 | // |
e2bddf81 |
1177 | if (gAlice) { |
1178 | TParticle *part; |
1179 | Int_t ntrack=gAlice->GetMCApp()->GetNtrack(); |
1180 | for (Int_t i=0; i<ntrack; i++) { |
1181 | part= gAlice->GetMCApp()->Particle(i); |
1182 | part->SetWeight(part->GetWeight()*fKineBias); |
1183 | } |
8d2cd130 |
1184 | } |
1185 | } |
1186 | |
20e47f08 |
1187 | void AliGenPythia::SetNuclei(Int_t a1, Int_t a2, Int_t pdfset) |
8d2cd130 |
1188 | { |
1189 | // Treat protons as inside nuclei with mass numbers a1 and a2 |
1d568bc2 |
1190 | |
1a626d4e |
1191 | fAProjectile = a1; |
1192 | fATarget = a2; |
20e47f08 |
1193 | fNucPdf = pdfset; // 0 EKS98 1 EPS08 |
1d568bc2 |
1194 | fSetNuclei = kTRUE; |
8d2cd130 |
1195 | } |
1196 | |
1197 | |
1198 | void AliGenPythia::MakeHeader() |
1199 | { |
7184e472 |
1200 | // |
1201 | // Make header for the simulated event |
1202 | // |
183a5ca9 |
1203 | if (gAlice) { |
1204 | if (gAlice->GetEvNumber()>=fDebugEventFirst && |
f913ec4f |
1205 | gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(2); |
183a5ca9 |
1206 | } |
1207 | |
8d2cd130 |
1208 | // Builds the event header, to be called after each event |
e5c87a3d |
1209 | if (fHeader) delete fHeader; |
1210 | fHeader = new AliGenPythiaEventHeader("Pythia"); |
8d2cd130 |
1211 | // |
1212 | // Event type |
e5c87a3d |
1213 | ((AliGenPythiaEventHeader*) fHeader)->SetProcessType(fPythia->GetMSTI(1)); |
8d2cd130 |
1214 | // |
1215 | // Number of trials |
e5c87a3d |
1216 | ((AliGenPythiaEventHeader*) fHeader)->SetTrials(fTrials); |
8d2cd130 |
1217 | // |
1218 | // Event Vertex |
d25cfd65 |
1219 | fHeader->SetPrimaryVertex(fVertex); |
dbd64db6 |
1220 | |
1221 | // |
1222 | // Number of primaries |
1223 | fHeader->SetNProduced(fNprimaries); |
8d2cd130 |
1224 | // |
1225 | // Jets that have triggered |
f913ec4f |
1226 | |
9dfe63b3 |
1227 | //Need to store jets for b-jet studies too! |
1228 | if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets) |
8d2cd130 |
1229 | { |
1230 | Int_t ntrig, njet; |
1231 | Float_t jets[4][10]; |
1232 | GetJets(njet, ntrig, jets); |
9ff6c04c |
1233 | |
8d2cd130 |
1234 | |
1235 | for (Int_t i = 0; i < ntrig; i++) { |
e5c87a3d |
1236 | ((AliGenPythiaEventHeader*) fHeader)->AddJet(jets[0][i], jets[1][i], jets[2][i], |
8d2cd130 |
1237 | jets[3][i]); |
1238 | } |
1239 | } |
5fa4b20b |
1240 | // |
1241 | // Copy relevant information from external header, if present. |
1242 | // |
1243 | Float_t uqJet[4]; |
1244 | |
1245 | if (fRL) { |
1246 | AliGenPythiaEventHeader* exHeader = (AliGenPythiaEventHeader*) (fRL->GetHeader()->GenEventHeader()); |
1247 | for (Int_t i = 0; i < exHeader->NTriggerJets(); i++) |
1248 | { |
1249 | printf("Adding Jet %d %d \n", i, exHeader->NTriggerJets()); |
1250 | |
1251 | |
1252 | exHeader->TriggerJet(i, uqJet); |
1253 | ((AliGenPythiaEventHeader*) fHeader)->AddUQJet(uqJet[0], uqJet[1], uqJet[2], uqJet[3]); |
1254 | } |
1255 | } |
1256 | // |
1257 | // Store quenching parameters |
1258 | // |
1259 | if (fQuench){ |
1260 | Double_t z[4]; |
1261 | Double_t xp, yp; |
7c21f297 |
1262 | if (fQuench == 1) { |
1263 | // Pythia::Quench() |
1264 | fPythia->GetQuenchingParameters(xp, yp, z); |
1bab4b79 |
1265 | } else if (fQuench == 2){ |
7c21f297 |
1266 | // Pyquen |
1267 | Double_t r1 = PARIMP.rb1; |
1268 | Double_t r2 = PARIMP.rb2; |
1269 | Double_t b = PARIMP.b1; |
1270 | Double_t r = 0.5 * TMath::Sqrt(2. * (r1 * r1 + r2 * r2) - b * b); |
1271 | Double_t phi = PARIMP.psib1; |
1272 | xp = r * TMath::Cos(phi); |
1273 | yp = r * TMath::Sin(phi); |
1274 | |
1bab4b79 |
1275 | } else if (fQuench == 4) { |
1276 | // QPythia |
5831e75f |
1277 | Double_t xy[2]; |
e9719084 |
1278 | Double_t i0i1[2]; |
1279 | AliFastGlauber::Instance()->GetSavedXY(xy); |
1280 | AliFastGlauber::Instance()->GetSavedI0I1(i0i1); |
5831e75f |
1281 | xp = xy[0]; |
1282 | yp = xy[1]; |
e6fe9b82 |
1283 | ((AliGenPythiaEventHeader*) fHeader)->SetImpactParameter(fImpact); |
7c21f297 |
1284 | } |
1bab4b79 |
1285 | |
7c21f297 |
1286 | ((AliGenPythiaEventHeader*) fHeader)->SetXYJet(xp, yp); |
1287 | ((AliGenPythiaEventHeader*) fHeader)->SetZQuench(z); |
1bab4b79 |
1288 | } |
beac474c |
1289 | // |
1290 | // Store pt^hard |
1291 | ((AliGenPythiaEventHeader*) fHeader)->SetPtHard(fPythia->GetVINT(47)); |
5fa4b20b |
1292 | // |
cf57b268 |
1293 | // Pass header |
5fa4b20b |
1294 | // |
cf57b268 |
1295 | AddHeader(fHeader); |
4c4eac97 |
1296 | fHeader = 0x0; |
8d2cd130 |
1297 | } |
cf57b268 |
1298 | |
8d2cd130 |
1299 | Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2) |
1300 | { |
1301 | // Check the kinematic trigger condition |
1302 | // |
1303 | Double_t eta[2]; |
1304 | eta[0] = jet1->Eta(); |
1305 | eta[1] = jet2->Eta(); |
1306 | Double_t phi[2]; |
1307 | phi[0] = jet1->Phi(); |
1308 | phi[1] = jet2->Phi(); |
1309 | Int_t pdg[2]; |
1310 | pdg[0] = jet1->GetPdgCode(); |
1311 | pdg[1] = jet2->GetPdgCode(); |
1312 | Bool_t triggered = kFALSE; |
1313 | |
9dfe63b3 |
1314 | // |
1315 | //TO BE CHECKED: If we call this method for kPyBeautyJets, we need it here |
1316 | // |
1317 | if (fProcess == kPyJets || fProcess == kPyBeautyJets) { |
8d2cd130 |
1318 | Int_t njets = 0; |
1319 | Int_t ntrig = 0; |
1320 | Float_t jets[4][10]; |
1321 | // |
1322 | // Use Pythia clustering on parton level to determine jet axis |
1323 | // |
1324 | GetJets(njets, ntrig, jets); |
1325 | |
76d6ba9a |
1326 | if (ntrig || fEtMinJet == 0.) triggered = kTRUE; |
8d2cd130 |
1327 | // |
1328 | } else { |
1329 | Int_t ij = 0; |
1330 | Int_t ig = 1; |
1331 | if (pdg[0] == kGamma) { |
1332 | ij = 1; |
1333 | ig = 0; |
1334 | } |
1335 | //Check eta range first... |
1336 | if ((eta[ij] < fEtaMaxJet && eta[ij] > fEtaMinJet) && |
1337 | (eta[ig] < fEtaMaxGamma && eta[ig] > fEtaMinGamma)) |
1338 | { |
1339 | //Eta is okay, now check phi range |
1340 | if ((phi[ij] < fPhiMaxJet && phi[ij] > fPhiMinJet) && |
1341 | (phi[ig] < fPhiMaxGamma && phi[ig] > fPhiMinGamma)) |
1342 | { |
1343 | triggered = kTRUE; |
1344 | } |
1345 | } |
1346 | } |
1347 | return triggered; |
1348 | } |
aea21c57 |
1349 | |
1350 | |
aea21c57 |
1351 | |
7184e472 |
1352 | Bool_t AliGenPythia::CheckKinematicsOnChild(){ |
1353 | // |
1354 | //Checking Kinematics on Child (status code 1, particle code ?, kin cuts |
1355 | // |
aea21c57 |
1356 | Bool_t checking = kFALSE; |
1357 | Int_t j, kcode, ks, km; |
1358 | Int_t nPartAcc = 0; //number of particles in the acceptance range |
1359 | Int_t numberOfAcceptedParticles = 1; |
1360 | if (fNumberOfAcceptedParticles != 0) { numberOfAcceptedParticles = fNumberOfAcceptedParticles; } |
8507138f |
1361 | Int_t npart = fParticles.GetEntriesFast(); |
aea21c57 |
1362 | |
0f6ee828 |
1363 | for (j = 0; j<npart; j++) { |
8507138f |
1364 | TParticle * jparticle = (TParticle *) fParticles.At(j); |
aea21c57 |
1365 | kcode = TMath::Abs( CheckPDGCode(jparticle->GetPdgCode()) ); |
1366 | ks = jparticle->GetStatusCode(); |
1367 | km = jparticle->GetFirstMother(); |
1368 | |
1369 | if( (ks == 1) && (kcode == fPdgCodeParticleforAcceptanceCut) && (KinematicSelection(jparticle,1)) ){ |
1370 | nPartAcc++; |
1371 | } |
0f6ee828 |
1372 | if( numberOfAcceptedParticles <= nPartAcc){ |
1373 | checking = kTRUE; |
1374 | break; |
1375 | } |
aea21c57 |
1376 | } |
0f6ee828 |
1377 | |
aea21c57 |
1378 | return checking; |
aea21c57 |
1379 | } |
1380 | |
5fa4b20b |
1381 | void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) |
8d2cd130 |
1382 | { |
1058d9df |
1383 | // |
1384 | // Load event into Pythia Common Block |
1385 | // |
1386 | |
1387 | Int_t npart = stack -> GetNprimary(); |
1388 | Int_t n0 = 0; |
1389 | |
1390 | if (!flag) { |
1391 | (fPythia->GetPyjets())->N = npart; |
1392 | } else { |
1393 | n0 = (fPythia->GetPyjets())->N; |
1394 | (fPythia->GetPyjets())->N = n0 + npart; |
1395 | } |
1396 | |
1397 | |
1398 | for (Int_t part = 0; part < npart; part++) { |
1399 | TParticle *mPart = stack->Particle(part); |
32d6ef7d |
1400 | |
1058d9df |
1401 | Int_t kf = mPart->GetPdgCode(); |
1402 | Int_t ks = mPart->GetStatusCode(); |
1403 | Int_t idf = mPart->GetFirstDaughter(); |
1404 | Int_t idl = mPart->GetLastDaughter(); |
1405 | |
1406 | if (reHadr) { |
1407 | if (ks == 11 || ks == 12) { |
1408 | ks -= 10; |
1409 | idf = -1; |
1410 | idl = -1; |
1411 | } |
32d6ef7d |
1412 | } |
1413 | |
1058d9df |
1414 | Float_t px = mPart->Px(); |
1415 | Float_t py = mPart->Py(); |
1416 | Float_t pz = mPart->Pz(); |
1417 | Float_t e = mPart->Energy(); |
1418 | Float_t m = mPart->GetCalcMass(); |
32d6ef7d |
1419 | |
1058d9df |
1420 | |
1421 | (fPythia->GetPyjets())->P[0][part+n0] = px; |
1422 | (fPythia->GetPyjets())->P[1][part+n0] = py; |
1423 | (fPythia->GetPyjets())->P[2][part+n0] = pz; |
1424 | (fPythia->GetPyjets())->P[3][part+n0] = e; |
1425 | (fPythia->GetPyjets())->P[4][part+n0] = m; |
1426 | |
1427 | (fPythia->GetPyjets())->K[1][part+n0] = kf; |
1428 | (fPythia->GetPyjets())->K[0][part+n0] = ks; |
1429 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; |
1430 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; |
1431 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; |
1432 | } |
1433 | } |
1434 | |
1435 | void AliGenPythia::LoadEvent(TObjArray* stack, Int_t flag, Int_t reHadr) |
1436 | { |
1437 | // |
1438 | // Load event into Pythia Common Block |
1439 | // |
1440 | |
1441 | Int_t npart = stack -> GetEntries(); |
1442 | Int_t n0 = 0; |
1443 | |
1444 | if (!flag) { |
1445 | (fPythia->GetPyjets())->N = npart; |
1446 | } else { |
1447 | n0 = (fPythia->GetPyjets())->N; |
1448 | (fPythia->GetPyjets())->N = n0 + npart; |
1449 | } |
1450 | |
1451 | |
1452 | for (Int_t part = 0; part < npart; part++) { |
1453 | TParticle *mPart = dynamic_cast<TParticle *>(stack->At(part)); |
1454 | Int_t kf = mPart->GetPdgCode(); |
1455 | Int_t ks = mPart->GetStatusCode(); |
1456 | Int_t idf = mPart->GetFirstDaughter(); |
1457 | Int_t idl = mPart->GetLastDaughter(); |
1458 | |
1459 | if (reHadr) { |
5fa4b20b |
1460 | if (ks == 11 || ks == 12) { |
1058d9df |
1461 | ks -= 10; |
1462 | idf = -1; |
1463 | idl = -1; |
5fa4b20b |
1464 | } |
8d2cd130 |
1465 | } |
1058d9df |
1466 | |
1467 | Float_t px = mPart->Px(); |
1468 | Float_t py = mPart->Py(); |
1469 | Float_t pz = mPart->Pz(); |
1470 | Float_t e = mPart->Energy(); |
1471 | Float_t m = mPart->GetCalcMass(); |
1472 | |
1473 | |
1474 | (fPythia->GetPyjets())->P[0][part+n0] = px; |
1475 | (fPythia->GetPyjets())->P[1][part+n0] = py; |
1476 | (fPythia->GetPyjets())->P[2][part+n0] = pz; |
1477 | (fPythia->GetPyjets())->P[3][part+n0] = e; |
1478 | (fPythia->GetPyjets())->P[4][part+n0] = m; |
1479 | |
1480 | (fPythia->GetPyjets())->K[1][part+n0] = kf; |
1481 | (fPythia->GetPyjets())->K[0][part+n0] = ks; |
1482 | (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; |
1483 | (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; |
1484 | (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; |
1485 | } |
8d2cd130 |
1486 | } |
1487 | |
5fa4b20b |
1488 | |
014a9521 |
1489 | void AliGenPythia::RecJetsUA1(Int_t& njets, Float_t jets [4][50]) |
8d2cd130 |
1490 | { |
1491 | // |
1492 | // Calls the Pythia jet finding algorithm to find jets in the current event |
1493 | // |
1494 | // |
8d2cd130 |
1495 | // |
1496 | // Save jets |
1497 | Int_t n = fPythia->GetN(); |
1498 | |
1499 | // |
1500 | // Run Jet Finder |
1501 | fPythia->Pycell(njets); |
1502 | Int_t i; |
1503 | for (i = 0; i < njets; i++) { |
1504 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; |
1505 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; |
1506 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; |
1507 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; |
1508 | |
1509 | jets[0][i] = px; |
1510 | jets[1][i] = py; |
1511 | jets[2][i] = pz; |
1512 | jets[3][i] = e; |
1513 | } |
1514 | } |
1515 | |
1516 | |
1517 | |
1518 | void AliGenPythia::GetJets(Int_t& nJets, Int_t& nJetsTrig, Float_t jets[4][10]) |
1519 | { |
1520 | // |
1521 | // Calls the Pythia clustering algorithm to find jets in the current event |
1522 | // |
1523 | Int_t n = fPythia->GetN(); |
1524 | nJets = 0; |
1525 | nJetsTrig = 0; |
1526 | if (fJetReconstruction == kCluster) { |
1527 | // |
1528 | // Configure cluster algorithm |
1529 | // |
1530 | fPythia->SetPARU(43, 2.); |
1531 | fPythia->SetMSTU(41, 1); |
1532 | // |
1533 | // Call cluster algorithm |
1534 | // |
1535 | fPythia->Pyclus(nJets); |
1536 | // |
1537 | // Loading jets from common block |
1538 | // |
1539 | } else { |
592f8307 |
1540 | |
8d2cd130 |
1541 | // |
1542 | // Run Jet Finder |
1543 | fPythia->Pycell(nJets); |
1544 | } |
1545 | |
1546 | Int_t i; |
1547 | for (i = 0; i < nJets; i++) { |
1548 | Float_t px = (fPythia->GetPyjets())->P[0][n+i]; |
1549 | Float_t py = (fPythia->GetPyjets())->P[1][n+i]; |
1550 | Float_t pz = (fPythia->GetPyjets())->P[2][n+i]; |
1551 | Float_t e = (fPythia->GetPyjets())->P[3][n+i]; |
1552 | Float_t pt = TMath::Sqrt(px * px + py * py); |
a920faf9 |
1553 | Float_t phi = TMath::Pi() + TMath::ATan2(-py, -px); |
8d2cd130 |
1554 | Float_t theta = TMath::ATan2(pt,pz); |
1555 | Float_t et = e * TMath::Sin(theta); |
1556 | Float_t eta = -TMath::Log(TMath::Tan(theta / 2.)); |
8d2cd130 |
1557 | if ( |
1558 | eta > fEtaMinJet && eta < fEtaMaxJet && |
675eb105 |
1559 | phi > fPhiMinJet && phi < fPhiMaxJet && |
8d2cd130 |
1560 | et > fEtMinJet && et < fEtMaxJet |
1561 | ) |
1562 | { |
1563 | jets[0][nJetsTrig] = px; |
1564 | jets[1][nJetsTrig] = py; |
1565 | jets[2][nJetsTrig] = pz; |
1566 | jets[3][nJetsTrig] = e; |
1567 | nJetsTrig++; |
5fa4b20b |
1568 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); |
8d2cd130 |
1569 | } else { |
1570 | // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg); |
1571 | } |
1572 | } |
1573 | } |
1574 | |
f913ec4f |
1575 | void AliGenPythia::GetSubEventTime() |
1576 | { |
1577 | // Calculates time of the next subevent |
9d7108a7 |
1578 | fEventTime = 0.; |
1579 | if (fEventsTime) { |
1580 | TArrayF &array = *fEventsTime; |
1581 | fEventTime = array[fCurSubEvent++]; |
1582 | } |
1583 | // printf(" Event time: %d %f %p",fCurSubEvent,fEventTime,fEventsTime); |
1584 | return; |
f913ec4f |
1585 | } |
8d2cd130 |
1586 | |
ec2c406e |
1587 | Bool_t AliGenPythia::IsInEMCAL(Float_t phi, Float_t eta) |
1588 | { |
1589 | // Is particle in EMCAL acceptance? |
ec2c406e |
1590 | // phi in degrees, etamin=-etamax |
9fd8e520 |
1591 | if(phi > fEMCALMinPhi && phi < fEMCALMaxPhi && |
1592 | eta < fEMCALEta ) |
ec2c406e |
1593 | return kTRUE; |
1594 | else |
1595 | return kFALSE; |
1596 | } |
1597 | |
1598 | Bool_t AliGenPythia::IsInPHOS(Float_t phi, Float_t eta) |
1599 | { |
1600 | // Is particle in PHOS acceptance? |
1601 | // Acceptance slightly larger considered. |
1602 | // phi in degrees, etamin=-etamax |
9fd8e520 |
1603 | if(phi > fPHOSMinPhi && phi < fPHOSMaxPhi && |
1604 | eta < fPHOSEta ) |
ec2c406e |
1605 | return kTRUE; |
1606 | else |
1607 | return kFALSE; |
1608 | } |
1609 | |
90a236ce |
1610 | void AliGenPythia::RotatePhi(Int_t iphcand, Bool_t& okdd) |
1611 | { |
1612 | //calculate the new position random between fPHOSMinPhi and fPHOSMaxPhi |
1613 | Double_t phiPHOSmin = TMath::Pi()*fPHOSMinPhi/180; |
1614 | Double_t phiPHOSmax = TMath::Pi()*fPHOSMaxPhi/180; |
1615 | Double_t phiPHOS = gRandom->Uniform(phiPHOSmin,phiPHOSmax); |
1616 | |
1617 | //calculate deltaphi |
8507138f |
1618 | TParticle* ph = (TParticle *) fParticles.At(iphcand); |
90a236ce |
1619 | Double_t phphi = ph->Phi(); |
1620 | Double_t deltaphi = phiPHOS - phphi; |
1621 | |
1622 | |
1623 | |
1624 | //loop for all particles and produce the phi rotation |
8507138f |
1625 | Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; |
90a236ce |
1626 | Double_t oldphi, newphi; |
1627 | Double_t newVx, newVy, R, Vz, time; |
1628 | Double_t newPx, newPy, pt, Pz, e; |
1629 | for(Int_t i=0; i< np; i++) { |
8507138f |
1630 | TParticle* iparticle = (TParticle *) fParticles.At(i); |
90a236ce |
1631 | oldphi = iparticle->Phi(); |
1632 | newphi = oldphi + deltaphi; |
1633 | if(newphi < 0) newphi = 2*TMath::Pi() + newphi; // correct angle |
1634 | if(newphi > 2*TMath::Pi()) newphi = newphi - 2*TMath::Pi(); // correct angle |
1635 | |
1636 | R = iparticle->R(); |
1637 | newVx = R*TMath::Cos(newphi); |
1638 | newVy = R*TMath::Sin(newphi); |
1639 | Vz = iparticle->Vz(); // don't transform |
1640 | time = iparticle->T(); // don't transform |
1641 | |
1642 | pt = iparticle->Pt(); |
1643 | newPx = pt*TMath::Cos(newphi); |
1644 | newPy = pt*TMath::Sin(newphi); |
1645 | Pz = iparticle->Pz(); // don't transform |
1646 | e = iparticle->Energy(); // don't transform |
1647 | |
1648 | // apply rotation |
1649 | iparticle->SetProductionVertex(newVx, newVy, Vz, time); |
1650 | iparticle->SetMomentum(newPx, newPy, Pz, e); |
1651 | |
1652 | } //end particle loop |
1653 | |
1654 | // now let's check that we put correctly the candidate photon in PHOS |
1655 | Float_t phi = ph->Phi()*180./TMath::Pi(); //Convert to degrees |
1656 | Float_t eta =TMath::Abs(ph->Eta());//in calos etamin=-etamax |
1657 | if(IsInPHOS(phi,eta)) |
1658 | okdd = kTRUE; |
1659 | } |
ec2c406e |
1660 | |
1661 | |
8d2cd130 |
1662 | #ifdef never |
1663 | void AliGenPythia::Streamer(TBuffer &R__b) |
1664 | { |
1665 | // Stream an object of class AliGenPythia. |
1666 | |
1667 | if (R__b.IsReading()) { |
1668 | Version_t R__v = R__b.ReadVersion(); if (R__v) { } |
1669 | AliGenerator::Streamer(R__b); |
1670 | R__b >> (Int_t&)fProcess; |
1671 | R__b >> (Int_t&)fStrucFunc; |
1672 | R__b >> (Int_t&)fForceDecay; |
1673 | R__b >> fEnergyCMS; |
1674 | R__b >> fKineBias; |
1675 | R__b >> fTrials; |
1676 | fParentSelect.Streamer(R__b); |
1677 | fChildSelect.Streamer(R__b); |
1678 | R__b >> fXsection; |
1679 | // (AliPythia::Instance())->Streamer(R__b); |
1680 | R__b >> fPtHardMin; |
1681 | R__b >> fPtHardMax; |
1682 | // if (fDecayer) fDecayer->Streamer(R__b); |
1683 | } else { |
1684 | R__b.WriteVersion(AliGenPythia::IsA()); |
1685 | AliGenerator::Streamer(R__b); |
1686 | R__b << (Int_t)fProcess; |
1687 | R__b << (Int_t)fStrucFunc; |
1688 | R__b << (Int_t)fForceDecay; |
1689 | R__b << fEnergyCMS; |
1690 | R__b << fKineBias; |
1691 | R__b << fTrials; |
1692 | fParentSelect.Streamer(R__b); |
1693 | fChildSelect.Streamer(R__b); |
1694 | R__b << fXsection; |
1695 | // R__b << fPythia; |
1696 | R__b << fPtHardMin; |
1697 | R__b << fPtHardMax; |
1698 | // fDecayer->Streamer(R__b); |
1699 | } |
1700 | } |
1701 | #endif |
1702 | |
90d7b703 |
1703 | |
589380c6 |
1704 | |