X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=PYTHIA6%2FAliGenPythia.cxx;h=947bf64ba7c7f9b85f52484c4652873caed3ffa0;hb=c5e2801a9f774fd7482b12882a778d7e40b6e752;hp=3a3fd632bd1872f02b4ede8c78c1317fe1a7714b;hpb=ec2c406ef1e41159ae0f2b1bbdde4cc22c31aee7;p=u%2Fmrichter%2FAliRoot.git diff --git a/PYTHIA6/AliGenPythia.cxx b/PYTHIA6/AliGenPythia.cxx index 3a3fd632bd1..947bf64ba7c 100644 --- a/PYTHIA6/AliGenPythia.cxx +++ b/PYTHIA6/AliGenPythia.cxx @@ -25,14 +25,17 @@ // andreas.morsch@cern.ch // +#include #include #include #include +#include #include #include #include "AliConst.h" #include "AliDecayerPythia.h" #include "AliGenPythia.h" +#include "AliFastGlauber.h" #include "AliHeader.h" #include "AliGenPythiaEventHeader.h" #include "AliPythia.h" @@ -41,7 +44,7 @@ #include "AliStack.h" #include "AliRunLoader.h" #include "AliMC.h" -#include "pyquenCommon.h" +#include "PyquenCommon.h" ClassImp(AliGenPythia) @@ -49,8 +52,8 @@ ClassImp(AliGenPythia) AliGenPythia::AliGenPythia(): AliGenMC(), fProcess(kPyCharm), + fItune(-1), fStrucFunc(kCTEQ5L), - fEnergyCMS(5500.), fKineBias(0.), fTrials(0), fTrialsRun(0), @@ -76,6 +79,9 @@ AliGenPythia::AliGenPythia(): fNpartons(0), fReadFromFile(0), fQuench(0), + fQhat(0.), + fLength(0.), + fImpact(0.), fPtKick(1.), fFullEvent(kTRUE), fDecayer(new AliDecayerPythia()), @@ -105,26 +111,35 @@ AliGenPythia::AliGenPythia(): fSetNuclei(kFALSE), fNewMIS(kFALSE), fHFoff(kFALSE), + fNucPdf(0), fTriggerParticle(0), fTriggerEta(0.9), + fTriggerMultiplicity(0), + fTriggerMultiplicityEta(0), fCountMode(kCountAll), fHeader(0), fRL(0), fFileName(0), - fBremssInCalo(kFALSE), + fFragPhotonInCalo(kFALSE), fPi0InCalo(kFALSE) , - fBremssPi0InEMCAL(kFALSE), - fBremssPi0InPHOS(kFALSE), - fBremssPi0MinPt(0), - fPHOSMinPhi(220.), - fPHOSMaxPhi(320.), - fPHOSEta(0.12), - fEMCALMinPhi(80.), - fEMCALMaxPhi(190.), - fEMCALEta(0.7) + fPhotonInCalo(kFALSE), + fEleInEMCAL(kFALSE), + fCheckEMCAL(kFALSE), + fCheckPHOS(kFALSE), + fCheckPHOSeta(kFALSE), + fFragPhotonOrPi0MinPt(0), + fPhotonMinPt(0), + fElectronMinPt(0), + fPHOSMinPhi(219.), + fPHOSMaxPhi(321.), + fPHOSEta(0.13), + fEMCALMinPhi(79.), + fEMCALMaxPhi(191.), + fEMCALEta(0.71) { // Default Constructor + fEnergyCMS = 5500.; SetNuclei(0,0); if (!AliPythiaRndm::GetPythiaRandom()) AliPythiaRndm::SetPythiaRandom(GetRandom()); @@ -133,8 +148,8 @@ AliGenPythia::AliGenPythia(): AliGenPythia::AliGenPythia(Int_t npart) :AliGenMC(npart), fProcess(kPyCharm), + fItune(-1), fStrucFunc(kCTEQ5L), - fEnergyCMS(5500.), fKineBias(0.), fTrials(0), fTrialsRun(0), @@ -160,6 +175,9 @@ AliGenPythia::AliGenPythia(Int_t npart) fNpartons(0), fReadFromFile(kFALSE), fQuench(kFALSE), + fQhat(0.), + fLength(0.), + fImpact(0.), fPtKick(1.), fFullEvent(kTRUE), fDecayer(new AliDecayerPythia()), @@ -189,119 +207,46 @@ AliGenPythia::AliGenPythia(Int_t npart) fSetNuclei(kFALSE), fNewMIS(kFALSE), fHFoff(kFALSE), + fNucPdf(0), fTriggerParticle(0), fTriggerEta(0.9), + fTriggerMultiplicity(0), + fTriggerMultiplicityEta(0), fCountMode(kCountAll), fHeader(0), fRL(0), fFileName(0), - fBremssInCalo(kFALSE), + fFragPhotonInCalo(kFALSE), fPi0InCalo(kFALSE) , - fBremssPi0InEMCAL(kFALSE), - fBremssPi0InPHOS(kFALSE), - fBremssPi0MinPt(0), - fPHOSMinPhi(220.), - fPHOSMaxPhi(320.), - fPHOSEta(0.12), - fEMCALMinPhi(80.), - fEMCALMaxPhi(190.), - fEMCALEta(0.7) + fPhotonInCalo(kFALSE), + fEleInEMCAL(kFALSE), + fCheckEMCAL(kFALSE), + fCheckPHOS(kFALSE), + fCheckPHOSeta(kFALSE), + fFragPhotonOrPi0MinPt(0), + fPhotonMinPt(0), + fElectronMinPt(0), + fPHOSMinPhi(219.), + fPHOSMaxPhi(321.), + fPHOSEta(0.13), + fEMCALMinPhi(79.), + fEMCALMaxPhi(191.), + fEMCALEta(0.71) { // default charm production at 5. 5 TeV // semimuonic decay // structure function GRVHO // + fEnergyCMS = 5500.; fName = "Pythia"; fTitle= "Particle Generator using PYTHIA"; SetForceDecay(); // Set random number generator if (!AliPythiaRndm::GetPythiaRandom()) AliPythiaRndm::SetPythiaRandom(GetRandom()); - fParticles = new TClonesArray("TParticle",1000); SetNuclei(0,0); } -AliGenPythia::AliGenPythia(const AliGenPythia & Pythia) - :AliGenMC(Pythia), - fProcess(kPyCharm), - fStrucFunc(kCTEQ5L), - fEnergyCMS(5500.), - fKineBias(0.), - fTrials(0), - fTrialsRun(0), - fQ(0.), - fX1(0.), - fX2(0.), - fEventTime(0.), - fInteractionRate(0.), - fTimeWindow(0.), - fCurSubEvent(0), - fEventsTime(0), - fNev(0), - fFlavorSelect(0), - fXsection(0.), - fPythia(0), - fPtHardMin(0.), - fPtHardMax(1.e4), - fYHardMin(-1.e10), - fYHardMax(1.e10), - fGinit(kTRUE), - fGfinal(kTRUE), - fHadronisation(kTRUE), - fNpartons(0), - fReadFromFile(kFALSE), - fQuench(kFALSE), - fPtKick(1.), - fFullEvent(kTRUE), - fDecayer(new AliDecayerPythia()), - fDebugEventFirst(-1), - fDebugEventLast(-1), - fEtMinJet(0.), - fEtMaxJet(1.e4), - fEtaMinJet(-20.), - fEtaMaxJet(20.), - fPhiMinJet(0.), - fPhiMaxJet(2.* TMath::Pi()), - fJetReconstruction(kCell), - fEtaMinGamma(-20.), - fEtaMaxGamma(20.), - fPhiMinGamma(0.), - fPhiMaxGamma(2. * TMath::Pi()), - fPycellEtaMax(2.), - fPycellNEta(274), - fPycellNPhi(432), - fPycellThreshold(0.), - fPycellEtSeed(4.), - fPycellMinEtJet(10.), - fPycellMaxRadius(1.), - fStackFillOpt(kFlavorSelection), - fFeedDownOpt(kTRUE), - fFragmentation(kTRUE), - fSetNuclei(kFALSE), - fNewMIS(kFALSE), - fHFoff(kFALSE), - fTriggerParticle(0), - fTriggerEta(0.9), - fCountMode(kCountAll), - fHeader(0), - fRL(0), - fFileName(0), - fBremssInCalo(kFALSE), - fPi0InCalo(kFALSE) , - fBremssPi0InEMCAL(kFALSE), - fBremssPi0InPHOS(kFALSE), - fBremssPi0MinPt(0), - fPHOSMinPhi(220.), - fPHOSMaxPhi(320.), - fPHOSEta(0.12), - fEMCALMinPhi(80.), - fEMCALMaxPhi(190.), - fEMCALEta(0.7) -{ -// copy constructor - Pythia.Copy(*this); -} - AliGenPythia::~AliGenPythia() { // Destructor @@ -392,9 +337,6 @@ void AliGenPythia::Init() // fParentWeight=1./Float_t(fNpart); // -// Forward Paramters to the AliPythia object - fDecayer->SetForceDecay(fForceDecay); - fDecayer->Init(); fPythia->SetCKIN(3,fPtHardMin); @@ -402,7 +344,7 @@ void AliGenPythia::Init() fPythia->SetCKIN(7,fYHardMin); fPythia->SetCKIN(8,fYHardMax); - if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget); + if (fAProjectile > 0 && fATarget > 0) fPythia->SetNuclei(fAProjectile, fATarget, fNucPdf); // Fragmentation? if (fFragmentation) { fPythia->SetMSTP(111,1); @@ -418,7 +360,8 @@ void AliGenPythia::Init() // pt - kick if (fPtKick > 0.) { fPythia->SetMSTP(91,1); - fPythia->SetPARP(91,fPtKick); + fPythia->SetPARP(91,fPtKick); + fPythia->SetPARP(93, 4. * fPtKick); } else { fPythia->SetMSTP(91,0); } @@ -431,14 +374,22 @@ void AliGenPythia::Init() } else { fRL = 0x0; } + // + fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc, fItune); + // Forward Paramters to the AliPythia object + fDecayer->SetForceDecay(fForceDecay); // Switch off Heavy Flavors on request if (fHFoff) { + // Maximum number of quark flavours used in pdf fPythia->SetMSTP(58, 3); + // Maximum number of flavors that can be used in showers fPythia->SetMSTJ(45, 3); - for (Int_t i = 156; i <= 160; i++) fPythia->SetMDME(i, 1, 0); + // Switch off g->QQbar splitting in decay table + ((AliDecayerPythia*) fDecayer)->HeavyFlavourOff(); } - // - fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc); + + fDecayer->Init(); + // Parent and Children Selection switch (fProcess) @@ -457,6 +408,9 @@ void AliGenPythia::Init() fParentSelect[1] = 421; fParentSelect[2] = 431; fParentSelect[3] = 4122; + fParentSelect[4] = 4232; + fParentSelect[5] = 4132; + fParentSelect[6] = 4332; fFlavorSelect = 4; break; case kPyD0PbPbMNR: @@ -478,6 +432,7 @@ void AliGenPythia::Init() fFlavorSelect = 4; break; case kPyBeauty: + case kPyBeautyJets: case kPyBeautyPbPbMNR: case kPyBeautypPbMNR: case kPyBeautyppMNR: @@ -505,7 +460,9 @@ void AliGenPythia::Init() case kPyJpsi: fParentSelect[0] = 443; break; + case kPyMbDefault: case kPyMb: + case kPyMbWithDirectPhoton: case kPyMbNonDiffr: case kPyMbMSEL1: case kPyJets: @@ -552,10 +509,14 @@ void AliGenPythia::Init() Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n"); } - if (fQuench) { + fPythia->SetPARJ(200, 0.0); + fPythia->SetPARJ(199, 0.0); + fPythia->SetPARJ(198, 0.0); + fPythia->SetPARJ(197, 0.0); + + if (fQuench == 1) { fPythia->InitQuenching(0., 0.1, 0.6e6, 0); } - fPythia->SetPARJ(200, 0.0); if (fQuench == 3) { // Nestor's change of the splittings @@ -566,13 +527,26 @@ void AliGenPythia::Init() fPythia->SetMSTJ(47, 0); // No correction back to hard scattering element fPythia->SetMSTJ(50, 0); // No coherence in first branching fPythia->SetPARJ(82, 1.); // Cut off for parton showers + } else if (fQuench == 4) { + // Armesto-Cunqueiro-Salgado change of the splittings. + AliFastGlauber* glauber = AliFastGlauber::Instance(); + glauber->Init(2); + //read and store transverse almonds corresponding to differnt + //impact parameters. + glauber->SetCentralityClass(0.,0.1); + fPythia->SetPARJ(200, 1.); + fPythia->SetPARJ(198, fQhat); + fPythia->SetPARJ(199, fLength); + fPythia->SetMSTJ(42, 2); // angular ordering + fPythia->SetMSTJ(44, 2); // option to run alpha_s + fPythia->SetPARJ(82, 1.); // Cut off for parton showers } } void AliGenPythia::Generate() { // Generate one event - + if (!fPythia) fPythia=(AliPythia*) fMCEvGen; fDecayer->ForceDecay(); Float_t polar[3] = {0,0,0}; @@ -602,6 +576,14 @@ void AliGenPythia::Generate() // Switch hadronisation off // fPythia->SetMSTJ(1, 0); + + if (fQuench ==4){ + Double_t bimp; + // Quenching comes through medium-modified splitting functions. + AliFastGlauber::Instance()->GetRandomBHard(bimp); + fPythia->SetPARJ(197, bimp); + fImpact = bimp; + } // // Either produce new event or read partons from file // @@ -613,8 +595,8 @@ void AliGenPythia::Generate() } fNpartons = fPythia->GetN(); } else { - printf("Loading Event %d\n",AliRunLoader::GetRunLoader()->GetEventNumber()); - fRL->GetEvent(AliRunLoader::GetRunLoader()->GetEventNumber()); + printf("Loading Event %d\n",AliRunLoader::Instance()->GetEventNumber()); + fRL->GetEvent(AliRunLoader::Instance()->GetEventNumber()); fPythia->SetN(0); LoadEvent(fRL->Stack(), 0 , 1); fPythia->Pyedit(21); @@ -634,21 +616,23 @@ void AliGenPythia::Generate() // // Switch hadronisation on // - fPythia->SetMSTJ(1, 1); + if (fHadronisation) { + fPythia->SetMSTJ(1, 1); // // .. and perform hadronisation // printf("Calling hadronisation %d\n", fPythia->GetN()); - fPythia->Pyexec(); + fPythia->Pyexec(); + } fTrials++; - fPythia->ImportParticles(fParticles,"All"); + fPythia->ImportParticles(&fParticles,"All"); Boost(); // // // Int_t i; - - Int_t np = fParticles->GetEntriesFast(); + fNprimaries = 0; + Int_t np = fParticles.GetEntriesFast(); if (np == 0) continue; // @@ -666,15 +650,21 @@ void AliGenPythia::Generate() Int_t nc = 0; // Total n. of selected particles Int_t nParents = 0; // Selected parents Int_t nTkbles = 0; // Trackable particles - if (fProcess != kPyMb && fProcess != kPyJets && + if (fProcess != kPyMbDefault && + fProcess != kPyMb && + fProcess != kPyMbWithDirectPhoton && + fProcess != kPyJets && fProcess != kPyDirectGamma && fProcess != kPyMbNonDiffr && fProcess != kPyMbMSEL1 && - fProcess != kPyW && fProcess != kPyZ && - fProcess != kPyCharmppMNRwmi && fProcess != kPyBeautyppMNRwmi) { + fProcess != kPyW && + fProcess != kPyZ && + fProcess != kPyCharmppMNRwmi && + fProcess != kPyBeautyppMNRwmi && + fProcess != kPyBeautyJets) { for (i = 0; i < np; i++) { - TParticle* iparticle = (TParticle *) fParticles->At(i); + TParticle* iparticle = (TParticle *) fParticles.At(i); Int_t ks = iparticle->GetStatusCode(); kf = CheckPDGCode(iparticle->GetPdgCode()); // No initial state partons @@ -701,20 +691,20 @@ void AliGenPythia::Generate() if (kf >= fFlavorSelect && kf <= 6) { Int_t idau = iparticle->GetFirstDaughter() - 1; if (idau > -1) { - TParticle* daughter = (TParticle *) fParticles->At(idau); + TParticle* daughter = (TParticle *) fParticles.At(idau); Int_t pdgD = daughter->GetPdgCode(); if (pdgD == 91 || pdgD == 92) { Int_t jmin = daughter->GetFirstDaughter() - 1; Int_t jmax = daughter->GetLastDaughter() - 1; - for (Int_t j = jmin; j <= jmax; j++) - ((TParticle *) fParticles->At(j))->SetFirstMother(i+1); + for (Int_t jp = jmin; jp <= jmax; jp++) + ((TParticle *) fParticles.At(jp))->SetFirstMother(i+1); } // is string or cluster } // has daughter } // heavy quark if (ipa > -1) { - TParticle * mother = (TParticle *) fParticles->At(ipa); + TParticle * mother = (TParticle *) fParticles.At(ipa); kfMo = TMath::Abs(mother->GetPdgCode()); } @@ -808,7 +798,7 @@ void AliGenPythia::Generate() if (nc > 0) { for (i = 0; iAt(i); + TParticle * iparticle = (TParticle *) fParticles.At(i); kf = CheckPDGCode(iparticle->GetPdgCode()); Int_t ks = iparticle->GetStatusCode(); p[0] = iparticle->Px(); @@ -830,7 +820,8 @@ void AliGenPythia::Generate() polar[0], polar[1], polar[2], kPPrimary, nt, 1., ks); pParent[i] = nt; - KeepTrack(nt); + KeepTrack(nt); + fNprimaries++; } // PushTrack loop } } else { @@ -893,49 +884,153 @@ Int_t AliGenPythia::GenerateMB() - Int_t np = (fHadronisation) ? fParticles->GetEntriesFast() : fNpartons; + Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; Int_t* pParent = new Int_t[np]; for (i=0; i< np; i++) pParent[i] = -1; - if (fProcess == kPyJets || fProcess == kPyDirectGamma) { - TParticle* jet1 = (TParticle *) fParticles->At(6); - TParticle* jet2 = (TParticle *) fParticles->At(7); + // + //TO BE CHECKED: Should we require this for Beauty Jets? + // + if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets) { + TParticle* jet1 = (TParticle *) fParticles.At(6); + TParticle* jet2 = (TParticle *) fParticles.At(7); if (!CheckTrigger(jet1, jet2)) { delete [] pParent; return 0; } } - // Select jets with bremsstrahlung or pi0 going to PHOS or EMCAL - if (fProcess == kPyJets && (fBremssInCalo || fPi0InCalo) ) { + // Select jets with fragmentation photon or pi0 going to PHOS or EMCAL + if (fProcess == kPyJets && (fFragPhotonInCalo || fPi0InCalo) ) { Bool_t ok = kFALSE; Int_t pdg = 0; - if (fBremssInCalo) pdg = 22 ; // Photon - else if (fPi0InCalo) pdg = 111 ; // Pi0 + if (fFragPhotonInCalo) pdg = 22 ; // Photon + else if (fPi0InCalo) pdg = 111 ; // Pi0 for (i=0; i< np; i++) { - TParticle* iparticle = (TParticle *) fParticles->At(i); + TParticle* iparticle = (TParticle *) fParticles.At(i); if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && - iparticle->Pt() > fBremssPi0MinPt){ - Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees - Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax - if((fBremssPi0InEMCAL && IsInEMCAL(phi,eta)) || - fBremssPi0InPHOS && IsInPHOS(phi,eta)) - ok =kTRUE; + iparticle->Pt() > fFragPhotonOrPi0MinPt){ + Int_t imother = iparticle->GetFirstMother() - 1; + TParticle* pmother = (TParticle *) fParticles.At(imother); + if(pdg == 111 || + (pdg == 22 && pmother->GetStatusCode() != 11)) //No photon from hadron decay + { + Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees + Float_t eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax + if((fCheckEMCAL && IsInEMCAL(phi,eta)) || + (fCheckPHOS && IsInPHOS(phi,eta)) ) + ok =kTRUE; + } + } + } + if(!ok) + return 0; + } + + // Select beauty jets with electron in EMCAL + if (fProcess == kPyBeautyJets && fEleInEMCAL) { + + Bool_t ok = kFALSE; + + Int_t pdg = 11; //electron + + Float_t pt = 0.; + Float_t eta = 0.; + Float_t phi = 0.; + for (i=0; i< np; i++) { + TParticle* iparticle = (TParticle *) fParticles.At(i); + if(iparticle->GetStatusCode()==1 && TMath::Abs(iparticle->GetPdgCode())==pdg && + iparticle->Pt() > fElectronMinPt){ + pt = iparticle->Pt(); + phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees + eta =TMath::Abs(iparticle->Eta()); //in calos etamin=-etamax + if(IsInEMCAL(phi,eta)) + ok =kTRUE; } } if(!ok) return 0; + AliDebug(5,Form("Found an electron jet (pt,eta,phi) = (%f,%f,%f)",pt,eta,phi)); + } + + // Check for minimum multiplicity + if (fTriggerMultiplicity > 0) { + Int_t multiplicity = 0; + for (i = 0; i < np; i++) { + TParticle * iparticle = (TParticle *) fParticles.At(i); + + Int_t statusCode = iparticle->GetStatusCode(); + + // Initial state particle + if (statusCode > 20) + continue; + + // skip quarks and gluons + Int_t pdgCode = TMath::Abs(iparticle->GetPdgCode()); + if (pdgCode <= 10 || pdgCode == 21) + continue; + + if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta) + continue; + + TParticlePDG* pdgPart = iparticle->GetPDG(); + if (pdgPart && pdgPart->Charge() == 0) + continue; + + ++multiplicity; + } + + if (multiplicity < fTriggerMultiplicity) { + delete [] pParent; + return 0; + } + + Printf("Triggered on event with multiplicity of %d > %d", multiplicity, fTriggerMultiplicity); + } + + // Select events with a photon pt > min pt going to PHOS eta acceptance or exactly PHOS eta phi + if ((fProcess == kPyJets || fProcess == kPyDirectGamma) && fPhotonInCalo && (fCheckPHOSeta || fCheckPHOS)){ + + Bool_t okd = kFALSE; + + Int_t pdg = 22; + Int_t iphcand = -1; + for (i=0; i< np; i++) { + TParticle* iparticle = (TParticle *) fParticles.At(i); + Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees + Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax + + if(iparticle->GetStatusCode() == 1 + && iparticle->GetPdgCode() == pdg + && iparticle->Pt() > fPhotonMinPt + && eta < fPHOSEta){ + + // first check if the photon is in PHOS phi + if(IsInPHOS(phi,eta)){ + okd = kTRUE; + break; + } + if(fCheckPHOSeta) iphcand = i; // candiate photon to rotate in phi + + } + } + + if(!okd && iphcand != -1) // execute rotation in phi + RotatePhi(iphcand,okd); + + if(!okd) + return 0; } if (fTriggerParticle) { Bool_t triggered = kFALSE; for (i = 0; i < np; i++) { - TParticle * iparticle = (TParticle *) fParticles->At(i); + TParticle * iparticle = (TParticle *) fParticles.At(i); kf = CheckPDGCode(iparticle->GetPdgCode()); if (kf != fTriggerParticle) continue; if (iparticle->Pt() == 0.) continue; @@ -952,28 +1047,57 @@ Int_t AliGenPythia::GenerateMB() // Check if there is a ccbar or bbbar pair with at least one of the two // in fYMin < y < fYMax - if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi) { - TParticle *hvq; + // + // TO BE CHECKED: Should we require this for beauty jets? + // + if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi || fProcess == kPyBeautyJets) { + TParticle *partCheck; + TParticle *mother; Bool_t theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE; - Float_t yQ; - Int_t pdgQ; + Bool_t theChild=kFALSE; + Float_t y; + Int_t pdg,mpdg,mpdgUpperFamily; for(i=0; iAt(i); - pdgQ = hvq->GetPdgCode(); - if(TMath::Abs(pdgQ) != fFlavorSelect) continue; - if(pdgQ>0) { theQ=kTRUE; } else { theQbar=kTRUE; } - yQ = 0.5*TMath::Log((hvq->Energy()+hvq->Pz()+1.e-13)/ - (hvq->Energy()-hvq->Pz()+1.e-13)); - if(yQ>fYMin && yQGetPdgCode(); + if(TMath::Abs(pdg) == fFlavorSelect) { // quark + if(pdg>0) { theQ=kTRUE; } else { theQbar=kTRUE; } + y = 0.5*TMath::Log((partCheck->Energy()+partCheck->Pz()+1.e-13)/ + (partCheck->Energy()-partCheck->Pz()+1.e-13)); + if(y>fYMin && yGetFirstMother() - 1; + if(mi<0) continue; + mother = (TParticle*)fParticles.At(mi); + mpdg=TMath::Abs(mother->GetPdgCode()); + mpdgUpperFamily=(mpdg>1000 ? mpdg+1000 : mpdg+100); // keep e from c from b + if ( ParentSelected(mpdg) || + (fFlavorSelect==5 && ParentSelected(mpdgUpperFamily))) { + if (KinematicSelection(partCheck,1)) { + theChild=kTRUE; + } + } + } } - if (!theQ || !theQbar || !inYcut) { + if (!theQ || !theQbar || !inYcut) { // one of the c/b conditions not satisfied delete[] pParent; return 0; } + if (fCutOnChild && !theChild) { // one of the child conditions not satisfied + delete[] pParent; + return 0; + } + } //Introducing child cuts in case kPyW, kPyZ, kPyMb, and kPyMbNonDiff - if ( (fProcess == kPyW || fProcess == kPyZ || fProcess == kPyMb || fProcess == kPyMbNonDiffr) + if ( (fProcess == kPyW || + fProcess == kPyZ || + fProcess == kPyMbDefault || + fProcess == kPyMb || + fProcess == kPyMbWithDirectPhoton || + fProcess == kPyMbNonDiffr) && (fCutOnChild == 1) ) { if ( !CheckKinematicsOnChild() ) { delete[] pParent; @@ -984,13 +1108,16 @@ Int_t AliGenPythia::GenerateMB() for (i = 0; i < np; i++) { Int_t trackIt = 0; - TParticle * iparticle = (TParticle *) fParticles->At(i); + TParticle * iparticle = (TParticle *) fParticles.At(i); kf = CheckPDGCode(iparticle->GetPdgCode()); Int_t ks = iparticle->GetStatusCode(); Int_t km = iparticle->GetFirstMother(); if ((ks == 1 && kf!=0 && KinematicSelection(iparticle, 0)) || (ks != 1) || - (fProcess == kPyJets && ks == 21 && km == 0 && i>1)) { + // + //TO BE CHECKED: Should we require this for beauty jets? + // + ((fProcess == kPyJets || fProcess == kPyBeautyJets) && ks == 21 && km == 0 && i>1)) { nc++; if (ks == 1) trackIt = 1; Int_t ipa = iparticle->GetFirstMother()-1; @@ -1016,20 +1143,7 @@ Int_t AliGenPythia::GenerateMB() origin[0], origin[1], origin[2], tof, polar[0], polar[1], polar[2], kPPrimary, nt, 1., ks); - // - // Special Treatment to store color-flow - // - if (ks == 3 || ks == 13 || ks == 14) { - TParticle* particle = 0; - if (fStack) { - particle = fStack->Particle(nt); - } else { - particle = gAlice->Stack()->Particle(nt); - } - particle->SetFirstDaughter(fPythia->GetK(2, i)); - particle->SetLastDaughter(fPythia->GetK(3, i)); - } - + fNprimaries++; KeepTrack(nt); pParent[i] = nt; SetHighWaterMark(nt); @@ -1072,12 +1186,13 @@ void AliGenPythia::AdjustWeights() const } } -void AliGenPythia::SetNuclei(Int_t a1, Int_t a2) +void AliGenPythia::SetNuclei(Int_t a1, Int_t a2, Int_t pdfset) { // Treat protons as inside nuclei with mass numbers a1 and a2 fAProjectile = a1; fATarget = a2; + fNucPdf = pdfset; // 0 EKS98 1 EPS08 fSetNuclei = kTRUE; } @@ -1104,10 +1219,15 @@ void AliGenPythia::MakeHeader() // // Event Vertex fHeader->SetPrimaryVertex(fVertex); + +// +// Number of primaries + fHeader->SetNProduced(fNprimaries); // // Jets that have triggered - if (fProcess == kPyJets) + //Need to store jets for b-jet studies too! + if (fProcess == kPyJets || fProcess == kPyDirectGamma || fProcess == kPyBeautyJets) { Int_t ntrig, njet; Float_t jets[4][10]; @@ -1144,7 +1264,7 @@ void AliGenPythia::MakeHeader() if (fQuench == 1) { // Pythia::Quench() fPythia->GetQuenchingParameters(xp, yp, z); - } else { + } else if (fQuench == 2){ // Pyquen Double_t r1 = PARIMP.rb1; Double_t r2 = PARIMP.rb2; @@ -1154,10 +1274,20 @@ void AliGenPythia::MakeHeader() xp = r * TMath::Cos(phi); yp = r * TMath::Sin(phi); + } else if (fQuench == 4) { + // QPythia + Double_t xy[2]; + Double_t i0i1[2]; + AliFastGlauber::Instance()->GetSavedXY(xy); + AliFastGlauber::Instance()->GetSavedI0I1(i0i1); + xp = xy[0]; + yp = xy[1]; + ((AliGenPythiaEventHeader*) fHeader)->SetImpactParameter(fImpact); } + ((AliGenPythiaEventHeader*) fHeader)->SetXYJet(xp, yp); ((AliGenPythiaEventHeader*) fHeader)->SetZQuench(z); - } + } // // Store pt^hard ((AliGenPythiaEventHeader*) fHeader)->SetPtHard(fPythia->GetVINT(47)); @@ -1165,19 +1295,9 @@ void AliGenPythia::MakeHeader() // Pass header // AddHeader(fHeader); + fHeader = 0x0; } -void AliGenPythia::AddHeader(AliGenEventHeader* header) -{ - // Add header to container or runloader - if (fContainer) { - fContainer->AddHeader(header); - } else { - AliRunLoader::GetRunLoader()->GetHeader()->SetGenEventHeader(header); - } -} - - Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2) { // Check the kinematic trigger condition @@ -1193,7 +1313,10 @@ Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2) pdg[1] = jet2->GetPdgCode(); Bool_t triggered = kFALSE; - if (fProcess == kPyJets) { + // + //TO BE CHECKED: If we call this method for kPyBeautyJets, we need it here + // + if (fProcess == kPyJets || fProcess == kPyBeautyJets) { Int_t njets = 0; Int_t ntrig = 0; Float_t jets[4][10]; @@ -1237,10 +1360,10 @@ Bool_t AliGenPythia::CheckKinematicsOnChild(){ Int_t nPartAcc = 0; //number of particles in the acceptance range Int_t numberOfAcceptedParticles = 1; if (fNumberOfAcceptedParticles != 0) { numberOfAcceptedParticles = fNumberOfAcceptedParticles; } - Int_t npart = fParticles->GetEntriesFast(); + Int_t npart = fParticles.GetEntriesFast(); for (j = 0; jAt(j); + TParticle * jparticle = (TParticle *) fParticles.At(j); kcode = TMath::Abs( CheckPDGCode(jparticle->GetPdgCode()) ); ks = jparticle->GetStatusCode(); km = jparticle->GetFirstMother(); @@ -1257,66 +1380,111 @@ Bool_t AliGenPythia::CheckKinematicsOnChild(){ return checking; } - -AliGenPythia& AliGenPythia::operator=(const AliGenPythia& rhs) -{ -// Assignment operator - rhs.Copy(*this); - return *this; -} - void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) { -// -// Load event into Pythia Common Block -// - - Int_t npart = stack -> GetNprimary(); - Int_t n0 = 0; + // + // Load event into Pythia Common Block + // + + Int_t npart = stack -> GetNprimary(); + Int_t n0 = 0; + + if (!flag) { + (fPythia->GetPyjets())->N = npart; + } else { + n0 = (fPythia->GetPyjets())->N; + (fPythia->GetPyjets())->N = n0 + npart; + } + + + for (Int_t part = 0; part < npart; part++) { + TParticle *mPart = stack->Particle(part); - if (!flag) { - (fPythia->GetPyjets())->N = npart; - } else { - n0 = (fPythia->GetPyjets())->N; - (fPythia->GetPyjets())->N = n0 + npart; + Int_t kf = mPart->GetPdgCode(); + Int_t ks = mPart->GetStatusCode(); + Int_t idf = mPart->GetFirstDaughter(); + Int_t idl = mPart->GetLastDaughter(); + + if (reHadr) { + if (ks == 11 || ks == 12) { + ks -= 10; + idf = -1; + idl = -1; + } } + Float_t px = mPart->Px(); + Float_t py = mPart->Py(); + Float_t pz = mPart->Pz(); + Float_t e = mPart->Energy(); + Float_t m = mPart->GetCalcMass(); - for (Int_t part = 0; part < npart; part++) { - TParticle *mPart = stack->Particle(part); - - Int_t kf = mPart->GetPdgCode(); - Int_t ks = mPart->GetStatusCode(); - Int_t idf = mPart->GetFirstDaughter(); - Int_t idl = mPart->GetLastDaughter(); - - if (reHadr) { + + (fPythia->GetPyjets())->P[0][part+n0] = px; + (fPythia->GetPyjets())->P[1][part+n0] = py; + (fPythia->GetPyjets())->P[2][part+n0] = pz; + (fPythia->GetPyjets())->P[3][part+n0] = e; + (fPythia->GetPyjets())->P[4][part+n0] = m; + + (fPythia->GetPyjets())->K[1][part+n0] = kf; + (fPythia->GetPyjets())->K[0][part+n0] = ks; + (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; + (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; + (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; + } +} + +void AliGenPythia::LoadEvent(TObjArray* stack, Int_t flag, Int_t reHadr) +{ + // + // Load event into Pythia Common Block + // + + Int_t npart = stack -> GetEntries(); + Int_t n0 = 0; + + if (!flag) { + (fPythia->GetPyjets())->N = npart; + } else { + n0 = (fPythia->GetPyjets())->N; + (fPythia->GetPyjets())->N = n0 + npart; + } + + + for (Int_t part = 0; part < npart; part++) { + TParticle *mPart = dynamic_cast(stack->At(part)); + Int_t kf = mPart->GetPdgCode(); + Int_t ks = mPart->GetStatusCode(); + Int_t idf = mPart->GetFirstDaughter(); + Int_t idl = mPart->GetLastDaughter(); + + if (reHadr) { if (ks == 11 || ks == 12) { - ks -= 10; - idf = -1; - idl = -1; + ks -= 10; + idf = -1; + idl = -1; } - } - - Float_t px = mPart->Px(); - Float_t py = mPart->Py(); - Float_t pz = mPart->Pz(); - Float_t e = mPart->Energy(); - Float_t m = mPart->GetCalcMass(); - - - (fPythia->GetPyjets())->P[0][part+n0] = px; - (fPythia->GetPyjets())->P[1][part+n0] = py; - (fPythia->GetPyjets())->P[2][part+n0] = pz; - (fPythia->GetPyjets())->P[3][part+n0] = e; - (fPythia->GetPyjets())->P[4][part+n0] = m; - - (fPythia->GetPyjets())->K[1][part+n0] = kf; - (fPythia->GetPyjets())->K[0][part+n0] = ks; - (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; - (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; - (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; } + + Float_t px = mPart->Px(); + Float_t py = mPart->Py(); + Float_t pz = mPart->Pz(); + Float_t e = mPart->Energy(); + Float_t m = mPart->GetCalcMass(); + + + (fPythia->GetPyjets())->P[0][part+n0] = px; + (fPythia->GetPyjets())->P[1][part+n0] = py; + (fPythia->GetPyjets())->P[2][part+n0] = pz; + (fPythia->GetPyjets())->P[3][part+n0] = e; + (fPythia->GetPyjets())->P[4][part+n0] = m; + + (fPythia->GetPyjets())->K[1][part+n0] = kf; + (fPythia->GetPyjets())->K[0][part+n0] = ks; + (fPythia->GetPyjets())->K[3][part+n0] = idf + 1; + (fPythia->GetPyjets())->K[4][part+n0] = idl + 1; + (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; + } } @@ -1421,10 +1589,9 @@ void AliGenPythia::GetSubEventTime() Bool_t AliGenPythia::IsInEMCAL(Float_t phi, Float_t eta) { // Is particle in EMCAL acceptance? - // Acceptance slightly larger considered. // phi in degrees, etamin=-etamax - if(phi > fEMCALMinPhi-0.1 && phi < fEMCALMaxPhi+0.1 && - eta < fEMCALEta+0.01 ) + if(phi > fEMCALMinPhi && phi < fEMCALMaxPhi && + eta < fEMCALEta ) return kTRUE; else return kFALSE; @@ -1435,13 +1602,63 @@ Bool_t AliGenPythia::IsInPHOS(Float_t phi, Float_t eta) // Is particle in PHOS acceptance? // Acceptance slightly larger considered. // phi in degrees, etamin=-etamax - if(phi > fPHOSMinPhi-0.1 && phi < fPHOSMaxPhi+0.1 && - eta < fPHOSEta+0.01 ) + if(phi > fPHOSMinPhi && phi < fPHOSMaxPhi && + eta < fPHOSEta ) return kTRUE; else return kFALSE; } +void AliGenPythia::RotatePhi(Int_t iphcand, Bool_t& okdd) +{ + //calculate the new position random between fPHOSMinPhi and fPHOSMaxPhi + Double_t phiPHOSmin = TMath::Pi()*fPHOSMinPhi/180; + Double_t phiPHOSmax = TMath::Pi()*fPHOSMaxPhi/180; + Double_t phiPHOS = gRandom->Uniform(phiPHOSmin,phiPHOSmax); + + //calculate deltaphi + TParticle* ph = (TParticle *) fParticles.At(iphcand); + Double_t phphi = ph->Phi(); + Double_t deltaphi = phiPHOS - phphi; + + + + //loop for all particles and produce the phi rotation + Int_t np = (fHadronisation) ? fParticles.GetEntriesFast() : fNpartons; + Double_t oldphi, newphi; + Double_t newVx, newVy, R, Vz, time; + Double_t newPx, newPy, pt, Pz, e; + for(Int_t i=0; i< np; i++) { + TParticle* iparticle = (TParticle *) fParticles.At(i); + oldphi = iparticle->Phi(); + newphi = oldphi + deltaphi; + if(newphi < 0) newphi = 2*TMath::Pi() + newphi; // correct angle + if(newphi > 2*TMath::Pi()) newphi = newphi - 2*TMath::Pi(); // correct angle + + R = iparticle->R(); + newVx = R*TMath::Cos(newphi); + newVy = R*TMath::Sin(newphi); + Vz = iparticle->Vz(); // don't transform + time = iparticle->T(); // don't transform + + pt = iparticle->Pt(); + newPx = pt*TMath::Cos(newphi); + newPy = pt*TMath::Sin(newphi); + Pz = iparticle->Pz(); // don't transform + e = iparticle->Energy(); // don't transform + + // apply rotation + iparticle->SetProductionVertex(newVx, newVy, Vz, time); + iparticle->SetMomentum(newPx, newPy, Pz, e); + + } //end particle loop + + // now let's check that we put correctly the candidate photon in PHOS + Float_t phi = ph->Phi()*180./TMath::Pi(); //Convert to degrees + Float_t eta =TMath::Abs(ph->Eta());//in calos etamin=-etamax + if(IsInPHOS(phi,eta)) + okdd = kTRUE; +} #ifdef never