1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
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 ...)
25 // andreas.morsch@cern.ch
28 #include <TDatabasePDG.h>
29 #include <TParticle.h>
34 #include "AliDecayerPythia.h"
35 #include "AliGenPythia.h"
36 #include "AliHeader.h"
37 #include "AliGenPythiaEventHeader.h"
38 #include "AliPythia.h"
39 #include "AliPythiaRndm.h"
42 #include "AliRunLoader.h"
44 #include "pyquenCommon.h"
46 ClassImp(AliGenPythia)
48 AliGenPythia::AliGenPythia()
51 // Default Constructor
56 fDecayer = new AliDecayerPythia();
67 if (!AliPythiaRndm::GetPythiaRandom())
68 AliPythiaRndm::SetPythiaRandom(GetRandom());
71 AliGenPythia::AliGenPythia(Int_t npart)
74 // default charm production at 5. 5 TeV
76 // structure function GRVHO
79 fTitle= "Particle Generator using PYTHIA";
88 fDecayer = new AliDecayerPythia();
89 // Set random number generator
90 if (!AliPythiaRndm::GetPythiaRandom())
91 AliPythiaRndm::SetPythiaRandom(GetRandom());
94 fParticles = new TClonesArray("TParticle",1000);
102 SetJetReconstructionMode();
106 // Options determining what to keep in the stack (Heavy flavour generation)
107 fStackFillOpt = kFlavorSelection; // Keep particle with selected flavor
108 fFeedDownOpt = kTRUE; // allow feed down from higher family
109 // Fragmentation on/off
110 fFragmentation = kTRUE;
111 // Default counting mode
112 fCountMode = kCountAll;
114 SetPycellParameters();
118 AliGenPythia::AliGenPythia(const AliGenPythia & Pythia)
125 AliGenPythia::~AliGenPythia()
130 void AliGenPythia::SetPycellParameters(Float_t etamax, Int_t neta, Int_t nphi,
131 Float_t thresh, Float_t etseed, Float_t minet, Float_t r)
133 // Set pycell parameters
134 fPycellEtaMax = etamax;
137 fPycellThreshold = thresh;
138 fPycellEtSeed = etseed;
139 fPycellMinEtJet = minet;
140 fPycellMaxRadius = r;
145 void AliGenPythia::SetEventListRange(Int_t eventFirst, Int_t eventLast)
147 // Set a range of event numbers, for which a table
148 // of generated particle will be printed
149 fDebugEventFirst = eventFirst;
150 fDebugEventLast = eventLast;
151 if (fDebugEventLast==-1) fDebugEventLast=fDebugEventFirst;
154 void AliGenPythia::Init()
158 SetMC(AliPythia::Instance());
159 fPythia=(AliPythia*) fMCEvGen;
162 fParentWeight=1./Float_t(fNpart);
164 // Forward Paramters to the AliPythia object
165 fDecayer->SetForceDecay(fForceDecay);
169 fPythia->SetCKIN(3,fPtHardMin);
170 fPythia->SetCKIN(4,fPtHardMax);
171 fPythia->SetCKIN(7,fYHardMin);
172 fPythia->SetCKIN(8,fYHardMax);
174 if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget);
176 if (fFragmentation) {
177 fPythia->SetMSTP(111,1);
179 fPythia->SetMSTP(111,0);
183 // initial state radiation
184 fPythia->SetMSTP(61,fGinit);
185 // final state radiation
186 fPythia->SetMSTP(71,fGfinal);
189 fPythia->SetMSTP(91,1);
190 fPythia->SetPARP(91,fPtKick);
192 fPythia->SetMSTP(91,0);
197 fRL = AliRunLoader::Open(fFileName, "Partons");
198 fRL->LoadKinematics();
206 fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc);
208 // Parent and Children Selection
212 case kPyCharmUnforced:
213 case kPyCharmPbPbMNR:
216 fParentSelect[0] = 411;
217 fParentSelect[1] = 421;
218 fParentSelect[2] = 431;
219 fParentSelect[3] = 4122;
225 fParentSelect[0] = 421;
228 case kPyDPlusPbPbMNR:
231 fParentSelect[0] = 411;
235 case kPyBeautyPbPbMNR:
236 case kPyBeautypPbMNR:
238 fParentSelect[0]= 511;
239 fParentSelect[1]= 521;
240 fParentSelect[2]= 531;
241 fParentSelect[3]= 5122;
242 fParentSelect[4]= 5132;
243 fParentSelect[5]= 5232;
244 fParentSelect[6]= 5332;
247 case kPyBeautyUnforced:
248 fParentSelect[0] = 511;
249 fParentSelect[1] = 521;
250 fParentSelect[2] = 531;
251 fParentSelect[3] = 5122;
252 fParentSelect[4] = 5132;
253 fParentSelect[5] = 5232;
254 fParentSelect[6] = 5332;
259 fParentSelect[0] = 443;
271 // JetFinder for Trigger
273 // Configure detector (EMCAL like)
275 fPythia->SetPARU(51, fPycellEtaMax);
276 fPythia->SetMSTU(51, fPycellNEta);
277 fPythia->SetMSTU(52, fPycellNPhi);
279 // Configure Jet Finder
281 fPythia->SetPARU(58, fPycellThreshold);
282 fPythia->SetPARU(52, fPycellEtSeed);
283 fPythia->SetPARU(53, fPycellMinEtJet);
284 fPythia->SetPARU(54, fPycellMaxRadius);
285 fPythia->SetMSTU(54, 2);
287 // This counts the total number of calls to Pyevnt() per run.
302 Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n");
306 fPythia->InitQuenching(0., 0.1, 0.6e6, 0);
311 void AliGenPythia::Generate()
313 // Generate one event
315 fDecayer->ForceDecay();
317 Float_t polar[3] = {0,0,0};
318 Float_t origin[3] = {0,0,0};
320 // converts from mm/c to s
321 const Float_t kconv=0.001/2.999792458e8;
329 // Set collision vertex position
330 if (fVertexSmear == kPerEvent) Vertex();
339 // Switch hadronisation off
341 fPythia->SetMSTJ(1, 0);
343 // Either produce new event or read partons from file
345 if (!fReadFromFile) {
347 fNpartons = fPythia->GetN();
349 printf("Loading Event %d\n",AliRunLoader::GetRunLoader()->GetEventNumber());
350 fRL->GetEvent(AliRunLoader::GetRunLoader()->GetEventNumber());
352 LoadEvent(fRL->Stack(), 0 , 1);
357 // Run quenching routine
361 } else if (fQuench == 2){
362 fPythia->Pyquen(208., 0, 0.);
365 // Switch hadronisation on
367 fPythia->SetMSTJ(1, 1);
369 // .. and perform hadronisation
370 // printf("Calling hadronisation %d\n", fPythia->GetN());
373 fPythia->ImportParticles(fParticles,"All");
381 Int_t np = fParticles->GetEntriesFast();
383 if (np == 0) continue;
387 Int_t* pParent = new Int_t[np];
388 Int_t* pSelected = new Int_t[np];
389 Int_t* trackIt = new Int_t[np];
390 for (i = 0; i < np; i++) {
396 Int_t nc = 0; // Total n. of selected particles
397 Int_t nParents = 0; // Selected parents
398 Int_t nTkbles = 0; // Trackable particles
399 if (fProcess != kPyMb && fProcess != kPyJets &&
400 fProcess != kPyDirectGamma &&
401 fProcess != kPyMbNonDiffr &&
404 for (i = 0; i < np; i++) {
405 TParticle* iparticle = (TParticle *) fParticles->At(i);
406 Int_t ks = iparticle->GetStatusCode();
407 kf = CheckPDGCode(iparticle->GetPdgCode());
408 // No initial state partons
409 if (ks==21) continue;
411 // Heavy Flavor Selection
417 if (kfl > 100000) kfl %= 100000;
418 if (kfl > 10000) kfl %= 10000;
420 if (kfl > 10) kfl/=100;
422 if (kfl > 10) kfl/=10;
423 Int_t ipa = iparticle->GetFirstMother()-1;
427 TParticle * mother = (TParticle *) fParticles->At(ipa);
428 kfMo = TMath::Abs(mother->GetPdgCode());
430 // What to keep in Stack?
431 Bool_t flavorOK = kFALSE;
432 Bool_t selectOK = kFALSE;
434 if (kfl >= fFlavorSelect) flavorOK = kTRUE;
436 if (kfl > fFlavorSelect) {
440 if (kfl == fFlavorSelect) flavorOK = kTRUE;
442 switch (fStackFillOpt) {
443 case kFlavorSelection:
446 case kParentSelection:
447 if (ParentSelected(kf) || kf <= 10) selectOK = kTRUE;
450 if (flavorOK && selectOK) {
452 // Heavy flavor hadron or quark
454 // Kinematic seletion on final state heavy flavor mesons
455 if (ParentSelected(kf) && !KinematicSelection(iparticle, 0))
460 if (ParentSelected(kf)) ++nParents; // Update parent count
461 // printf("\n particle (HF) %d %d %d", i, pSelected[i], kf);
463 // Kinematic seletion on decay products
464 if (fCutOnChild && ParentSelected(kfMo) && ChildSelected(kf)
465 && !KinematicSelection(iparticle, 1))
471 // Select if mother was selected and is not tracked
473 if (pSelected[ipa] &&
474 !trackIt[ipa] && // mother will be tracked ?
475 kfMo != 5 && // mother is b-quark, don't store fragments
476 kfMo != 4 && // mother is c-quark, don't store fragments
477 kf != 92) // don't store string
480 // Semi-stable or de-selected: diselect decay products:
483 if (pSelected[i] == -1 || fDecayer->GetLifetime(kf) > fMaxLifeTime)
485 Int_t ipF = iparticle->GetFirstDaughter();
486 Int_t ipL = iparticle->GetLastDaughter();
487 if (ipF > 0) for (j = ipF-1; j < ipL; j++) pSelected[j] = -1;
489 // printf("\n particle (decay) %d %d %d", i, pSelected[i], kf);
490 pSelected[i] = (pSelected[i] == -1) ? 0 : 1;
493 if (pSelected[i] == -1) pSelected[i] = 0;
494 if (!pSelected[i]) continue;
495 // Count quarks only if you did not include fragmentation
496 if (fFragmentation && kf <= 10) continue;
499 // Decision on tracking
502 // Track final state particle
503 if (ks == 1) trackIt[i] = 1;
504 // Track semi-stable particles
505 if ((ks == 1) || (fDecayer->GetLifetime(kf) > fMaxLifeTime)) trackIt[i] = 1;
506 // Track particles selected by process if undecayed.
507 if (fForceDecay == kNoDecay) {
508 if (ParentSelected(kf)) trackIt[i] = 1;
510 if (ParentSelected(kf)) trackIt[i] = 0;
512 if (trackIt[i] == 1) ++nTkbles; // Update trackable counter
516 } // particle selection loop
518 for (i = 0; i<np; i++) {
519 if (!pSelected[i]) continue;
520 TParticle * iparticle = (TParticle *) fParticles->At(i);
521 kf = CheckPDGCode(iparticle->GetPdgCode());
522 Int_t ks = iparticle->GetStatusCode();
523 p[0] = iparticle->Px();
524 p[1] = iparticle->Py();
525 p[2] = iparticle->Pz();
526 p[3] = iparticle->Energy();
528 origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm]
529 origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm]
530 origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm]
532 Float_t tof = kconv*iparticle->T();
533 Int_t ipa = iparticle->GetFirstMother()-1;
534 Int_t iparent = (ipa > -1) ? pParent[ipa] : -1;
536 PushTrack(fTrackIt*trackIt[i], iparent, kf,
537 p[0], p[1], p[2], p[3],
538 origin[0], origin[1], origin[2], tof,
539 polar[0], polar[1], polar[2],
540 kPPrimary, nt, 1., ks);
549 if (pParent) delete[] pParent;
550 if (pSelected) delete[] pSelected;
551 if (trackIt) delete[] trackIt;
554 switch (fCountMode) {
556 // printf(" Count all \n");
560 // printf(" Count parents \n");
563 case kCountTrackables:
564 // printf(" Count trackable \n");
568 if (jev >= fNpart || fNpart == -1) {
569 fKineBias=Float_t(fNpart)/Float_t(fTrials);
570 printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev);
572 fQ += fPythia->GetVINT(51);
573 fX1 += fPythia->GetVINT(41);
574 fX2 += fPythia->GetVINT(42);
575 fTrialsRun += fTrials;
582 SetHighWaterMark(nt);
583 // adjust weight due to kinematic selection
586 fXsection=fPythia->GetPARI(1);
589 Int_t AliGenPythia::GenerateMB()
592 // Min Bias selection and other global selections
594 Int_t i, kf, nt, iparent;
597 Float_t polar[3] = {0,0,0};
598 Float_t origin[3] = {0,0,0};
599 // converts from mm/c to s
600 const Float_t kconv=0.001/2.999792458e8;
604 Int_t np = (fHadronisation) ? fParticles->GetEntriesFast() : fNpartons;
607 Int_t* pParent = new Int_t[np];
608 for (i=0; i< np; i++) pParent[i] = -1;
609 if (fProcess == kPyJets || fProcess == kPyDirectGamma) {
610 TParticle* jet1 = (TParticle *) fParticles->At(6);
611 TParticle* jet2 = (TParticle *) fParticles->At(7);
612 if (!CheckTrigger(jet1, jet2)) return 0;
615 for (i = 0; i<np; i++) {
617 TParticle * iparticle = (TParticle *) fParticles->At(i);
618 kf = CheckPDGCode(iparticle->GetPdgCode());
619 Int_t ks = iparticle->GetStatusCode();
620 Int_t km = iparticle->GetFirstMother();
621 if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) ||
623 (fProcess == kPyJets && ks == 21 && km == 0 && i>1)) {
625 if (ks == 1) trackIt = 1;
626 Int_t ipa = iparticle->GetFirstMother()-1;
628 iparent = (ipa > -1) ? pParent[ipa] : -1;
631 // store track information
632 p[0] = iparticle->Px();
633 p[1] = iparticle->Py();
634 p[2] = iparticle->Pz();
635 p[3] = iparticle->Energy();
638 origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm]
639 origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm]
640 origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm]
642 Float_t tof=kconv*iparticle->T();
644 PushTrack(fTrackIt*trackIt, iparent, kf,
645 p[0], p[1], p[2], p[3],
646 origin[0], origin[1], origin[2], tof,
647 polar[0], polar[1], polar[2],
648 kPPrimary, nt, 1., ks);
650 // Special Treatment to store color-flow
652 if (ks == 3 || ks == 13 || ks == 14) {
653 TParticle* particle = 0;
655 particle = fStack->Particle(nt);
657 particle = gAlice->Stack()->Particle(nt);
659 particle->SetFirstDaughter(fPythia->GetK(2, i));
660 particle->SetLastDaughter(fPythia->GetK(3, i));
668 if (pParent) delete[] pParent;
670 printf("\n I've put %i particles on the stack \n",nc);
675 void AliGenPythia::FinishRun()
677 // Print x-section summary
686 printf("\nTotal number of Pyevnt() calls %d\n", fTrialsRun);
687 printf("\nMean Q, x1, x2: %f %f %f\n", fQ, fX1, fX2);
690 void AliGenPythia::AdjustWeights()
692 // Adjust the weights after generation of all events
696 Int_t ntrack=gAlice->GetMCApp()->GetNtrack();
697 for (Int_t i=0; i<ntrack; i++) {
698 part= gAlice->GetMCApp()->Particle(i);
699 part->SetWeight(part->GetWeight()*fKineBias);
704 void AliGenPythia::SetNuclei(Int_t a1, Int_t a2)
706 // Treat protons as inside nuclei with mass numbers a1 and a2
714 void AliGenPythia::MakeHeader()
717 if (gAlice->GetEvNumber()>=fDebugEventFirst &&
718 gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(1);
721 // Builds the event header, to be called after each event
722 if (fHeader) delete fHeader;
723 fHeader = new AliGenPythiaEventHeader("Pythia");
726 ((AliGenPythiaEventHeader*) fHeader)->SetProcessType(fPythia->GetMSTI(1));
729 ((AliGenPythiaEventHeader*) fHeader)->SetTrials(fTrials);
732 fHeader->SetPrimaryVertex(fVertex);
734 // Jets that have triggered
735 if (fProcess == kPyJets)
739 GetJets(njet, ntrig, jets);
742 for (Int_t i = 0; i < ntrig; i++) {
743 ((AliGenPythiaEventHeader*) fHeader)->AddJet(jets[0][i], jets[1][i], jets[2][i],
748 // Copy relevant information from external header, if present.
753 AliGenPythiaEventHeader* exHeader = (AliGenPythiaEventHeader*) (fRL->GetHeader()->GenEventHeader());
754 for (Int_t i = 0; i < exHeader->NTriggerJets(); i++)
756 printf("Adding Jet %d %d \n", i, exHeader->NTriggerJets());
759 exHeader->TriggerJet(i, uqJet);
760 ((AliGenPythiaEventHeader*) fHeader)->AddUQJet(uqJet[0], uqJet[1], uqJet[2], uqJet[3]);
764 // Store quenching parameters
771 fPythia->GetQuenchingParameters(xp, yp, z);
774 Double_t r1 = PARIMP.rb1;
775 Double_t r2 = PARIMP.rb2;
776 Double_t b = PARIMP.b1;
777 Double_t r = 0.5 * TMath::Sqrt(2. * (r1 * r1 + r2 * r2) - b * b);
778 Double_t phi = PARIMP.psib1;
779 xp = r * TMath::Cos(phi);
780 yp = r * TMath::Sin(phi);
783 ((AliGenPythiaEventHeader*) fHeader)->SetXYJet(xp, yp);
784 ((AliGenPythiaEventHeader*) fHeader)->SetZQuench(z);
788 // Pass header to RunLoader
790 AliRunLoader::GetRunLoader()->GetHeader()->SetGenEventHeader(fHeader);
794 Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2)
796 // Check the kinematic trigger condition
799 eta[0] = jet1->Eta();
800 eta[1] = jet2->Eta();
802 phi[0] = jet1->Phi();
803 phi[1] = jet2->Phi();
805 pdg[0] = jet1->GetPdgCode();
806 pdg[1] = jet2->GetPdgCode();
807 Bool_t triggered = kFALSE;
809 if (fProcess == kPyJets) {
814 // Use Pythia clustering on parton level to determine jet axis
816 GetJets(njets, ntrig, jets);
818 if (ntrig) triggered = kTRUE;
823 if (pdg[0] == kGamma) {
827 //Check eta range first...
828 if ((eta[ij] < fEtaMaxJet && eta[ij] > fEtaMinJet) &&
829 (eta[ig] < fEtaMaxGamma && eta[ig] > fEtaMinGamma))
831 //Eta is okay, now check phi range
832 if ((phi[ij] < fPhiMaxJet && phi[ij] > fPhiMinJet) &&
833 (phi[ig] < fPhiMaxGamma && phi[ig] > fPhiMinGamma))
842 AliGenPythia& AliGenPythia::operator=(const AliGenPythia& rhs)
844 // Assignment operator
849 void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr)
852 // Load event into Pythia Common Block
855 Int_t npart = stack -> GetNprimary();
859 (fPythia->GetPyjets())->N = npart;
861 n0 = (fPythia->GetPyjets())->N;
862 (fPythia->GetPyjets())->N = n0 + npart;
866 for (Int_t part = 0; part < npart; part++) {
867 TParticle *MPart = stack->Particle(part);
869 Int_t kf = MPart->GetPdgCode();
870 Int_t ks = MPart->GetStatusCode();
871 Int_t idf = MPart->GetFirstDaughter();
872 Int_t idl = MPart->GetLastDaughter();
875 if (ks == 11 || ks == 12) {
882 Float_t px = MPart->Px();
883 Float_t py = MPart->Py();
884 Float_t pz = MPart->Pz();
885 Float_t e = MPart->Energy();
886 Float_t m = MPart->GetCalcMass();
889 (fPythia->GetPyjets())->P[0][part+n0] = px;
890 (fPythia->GetPyjets())->P[1][part+n0] = py;
891 (fPythia->GetPyjets())->P[2][part+n0] = pz;
892 (fPythia->GetPyjets())->P[3][part+n0] = e;
893 (fPythia->GetPyjets())->P[4][part+n0] = m;
895 (fPythia->GetPyjets())->K[1][part+n0] = kf;
896 (fPythia->GetPyjets())->K[0][part+n0] = ks;
897 (fPythia->GetPyjets())->K[3][part+n0] = idf + 1;
898 (fPythia->GetPyjets())->K[4][part+n0] = idl + 1;
899 (fPythia->GetPyjets())->K[2][part+n0] = MPart->GetFirstMother() + 1;
904 void AliGenPythia::RecJetsUA1(Int_t& njets, Float_t jets [4][50])
907 // Calls the Pythia jet finding algorithm to find jets in the current event
912 Int_t n = fPythia->GetN();
916 fPythia->Pycell(njets);
918 for (i = 0; i < njets; i++) {
919 Float_t px = (fPythia->GetPyjets())->P[0][n+i];
920 Float_t py = (fPythia->GetPyjets())->P[1][n+i];
921 Float_t pz = (fPythia->GetPyjets())->P[2][n+i];
922 Float_t e = (fPythia->GetPyjets())->P[3][n+i];
933 void AliGenPythia::GetJets(Int_t& nJets, Int_t& nJetsTrig, Float_t jets[4][10])
936 // Calls the Pythia clustering algorithm to find jets in the current event
938 Int_t n = fPythia->GetN();
941 if (fJetReconstruction == kCluster) {
943 // Configure cluster algorithm
945 fPythia->SetPARU(43, 2.);
946 fPythia->SetMSTU(41, 1);
948 // Call cluster algorithm
950 fPythia->Pyclus(nJets);
952 // Loading jets from common block
958 fPythia->Pycell(nJets);
962 for (i = 0; i < nJets; i++) {
963 Float_t px = (fPythia->GetPyjets())->P[0][n+i];
964 Float_t py = (fPythia->GetPyjets())->P[1][n+i];
965 Float_t pz = (fPythia->GetPyjets())->P[2][n+i];
966 Float_t e = (fPythia->GetPyjets())->P[3][n+i];
967 Float_t pt = TMath::Sqrt(px * px + py * py);
968 Float_t phi = TMath::Pi() + TMath::ATan2(-py, -px);
969 Float_t theta = TMath::ATan2(pt,pz);
970 Float_t et = e * TMath::Sin(theta);
971 Float_t eta = -TMath::Log(TMath::Tan(theta / 2.));
973 eta > fEtaMinJet && eta < fEtaMaxJet &&
974 phi > fPhiMinJet && phi < fPhiMaxJet &&
975 et > fEtMinJet && et < fEtMaxJet
978 jets[0][nJetsTrig] = px;
979 jets[1][nJetsTrig] = py;
980 jets[2][nJetsTrig] = pz;
981 jets[3][nJetsTrig] = e;
983 // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg);
985 // printf("\n........-Jet #%d: %10.3f %10.3f %10.3f %10.3f \n", i, pt, et, eta, phi * kRaddeg);
992 void AliGenPythia::Streamer(TBuffer &R__b)
994 // Stream an object of class AliGenPythia.
996 if (R__b.IsReading()) {
997 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
998 AliGenerator::Streamer(R__b);
999 R__b >> (Int_t&)fProcess;
1000 R__b >> (Int_t&)fStrucFunc;
1001 R__b >> (Int_t&)fForceDecay;
1005 fParentSelect.Streamer(R__b);
1006 fChildSelect.Streamer(R__b);
1008 // (AliPythia::Instance())->Streamer(R__b);
1011 // if (fDecayer) fDecayer->Streamer(R__b);
1013 R__b.WriteVersion(AliGenPythia::IsA());
1014 AliGenerator::Streamer(R__b);
1015 R__b << (Int_t)fProcess;
1016 R__b << (Int_t)fStrucFunc;
1017 R__b << (Int_t)fForceDecay;
1021 fParentSelect.Streamer(R__b);
1022 fChildSelect.Streamer(R__b);
1027 // fDecayer->Streamer(R__b);