X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=PYTHIA6%2FAliGenPythia.cxx;h=649e123b03023e6ef1001b6e09582b5ecc154cd0;hb=606d8cca597d6ec447c535d6f52fa94733f508fe;hp=0a90e0bd8fdb97f8e601be2d559a97322e5ec9bd;hpb=beac474cfc1e036d87369d09ea8a0e1547ceca55;p=u%2Fmrichter%2FAliRoot.git diff --git a/PYTHIA6/AliGenPythia.cxx b/PYTHIA6/AliGenPythia.cxx index 0a90e0bd8fd..649e123b030 100644 --- a/PYTHIA6/AliGenPythia.cxx +++ b/PYTHIA6/AliGenPythia.cxx @@ -25,6 +25,7 @@ // andreas.morsch@cern.ch // +#include #include #include #include @@ -41,42 +42,177 @@ #include "AliStack.h" #include "AliRunLoader.h" #include "AliMC.h" -#include "pyquenCommon.h" +#include "PyquenCommon.h" ClassImp(AliGenPythia) -AliGenPythia::AliGenPythia() - :AliGenMC() + +AliGenPythia::AliGenPythia(): + AliGenMC(), + 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(1), + fGfinal(1), + fHadronisation(1), + fNpartons(0), + fReadFromFile(0), + fQuench(0), + 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), + fFragPhotonInCalo(kFALSE), + fPi0InCalo(kFALSE) , + fPhotonInCalo(kFALSE), + fCheckEMCAL(kFALSE), + fCheckPHOS(kFALSE), + fCheckPHOSeta(kFALSE), + fFragPhotonOrPi0MinPt(0), + fPhotonMinPt(0), + fPHOSMinPhi(219.), + fPHOSMaxPhi(321.), + fPHOSEta(0.13), + fEMCALMinPhi(79.), + fEMCALMaxPhi(191.), + fEMCALEta(0.71) + { // Default Constructor - fParticles = 0; - fPythia = 0; - fHeader = 0; - fReadFromFile = 0; - fEventTime = 0.; - fInteractionRate = 0.; - fTimeWindow = 0.; - fEventsTime = 0; - fCurSubEvent = 0; - fDecayer = new AliDecayerPythia(); - SetEventListRange(); - SetJetPhiRange(); - SetJetEtaRange(); - SetJetEtRange(); - SetGammaPhiRange(); - SetGammaEtaRange(); - SetPtKick(); - SetQuench(); - SetHadronisation(); - fSetNuclei = kFALSE; - fNewMIS = kFALSE; - fHFoff = kFALSE; + SetNuclei(0,0); if (!AliPythiaRndm::GetPythiaRandom()) - AliPythiaRndm::SetPythiaRandom(GetRandom()); + AliPythiaRndm::SetPythiaRandom(GetRandom()); } AliGenPythia::AliGenPythia(Int_t npart) - :AliGenMC(npart) + :AliGenMC(npart), + 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), + fFragPhotonInCalo(kFALSE), + fPi0InCalo(kFALSE) , + fPhotonInCalo(kFALSE), + fCheckEMCAL(kFALSE), + fCheckPHOS(kFALSE), + fCheckPHOSeta(kFALSE), + fFragPhotonOrPi0MinPt(0), + fPhotonMinPt(0), + fPHOSMinPhi(219.), + fPHOSMaxPhi(321.), + fPHOSEta(0.13), + fEMCALMinPhi(79.), + fEMCALMaxPhi(191.), + fEMCALEta(0.71) { // default charm production at 5. 5 TeV // semimuonic decay @@ -84,57 +220,13 @@ AliGenPythia::AliGenPythia(Int_t npart) // fName = "Pythia"; fTitle= "Particle Generator using PYTHIA"; - fXsection = 0.; - fReadFromFile = 0; - fEventTime = 0.; - fInteractionRate = 0.; - fTimeWindow = 0.; - fEventsTime = 0; - fCurSubEvent = 0; - SetProcess(); - SetStrucFunc(); SetForceDecay(); - SetPtHard(); - SetYHard(); - SetEnergyCMS(); - fDecayer = new AliDecayerPythia(); // Set random number generator if (!AliPythiaRndm::GetPythiaRandom()) AliPythiaRndm::SetPythiaRandom(GetRandom()); - fFlavorSelect = 0; - // Produced particles fParticles = new TClonesArray("TParticle",1000); - fHeader = 0; - SetEventListRange(); - SetJetPhiRange(); - SetJetEtaRange(); - SetJetEtRange(); - SetGammaPhiRange(); - SetGammaEtaRange(); - SetJetReconstructionMode(); - SetQuench(); - SetHadronisation(); - SetPtKick(); - // Options determining what to keep in the stack (Heavy flavour generation) - fStackFillOpt = kFlavorSelection; // Keep particle with selected flavor - fFeedDownOpt = kTRUE; // allow feed down from higher family - // Fragmentation on/off - fFragmentation = kTRUE; - // Default counting mode - fCountMode = kCountAll; - // Pycel - SetPycellParameters(); - fSetNuclei = kFALSE; - fNewMIS = kFALSE; - fHFoff = kFALSE; -} - -AliGenPythia::AliGenPythia(const AliGenPythia & Pythia) - :AliGenMC(Pythia) -{ -// copy constructor - Pythia.Copy(*this); -} + SetNuclei(0,0); + } AliGenPythia::~AliGenPythia() { @@ -226,9 +318,6 @@ void AliGenPythia::Init() // fParentWeight=1./Float_t(fNpart); // -// Forward Paramters to the AliPythia object - fDecayer->SetForceDecay(fForceDecay); - fDecayer->Init(); fPythia->SetCKIN(3,fPtHardMin); @@ -252,7 +341,8 @@ 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); } @@ -265,14 +355,22 @@ void AliGenPythia::Init() } else { fRL = 0x0; } + // + fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc); + // 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) @@ -284,8 +382,9 @@ void AliGenPythia::Init() case kPyCharm: case kPyCharmUnforced: case kPyCharmPbPbMNR: - case kPyCharmppMNR: case kPyCharmpPbMNR: + case kPyCharmppMNR: + case kPyCharmppMNRwmi: fParentSelect[0] = 411; fParentSelect[1] = 421; fParentSelect[2] = 431; @@ -304,10 +403,17 @@ void AliGenPythia::Init() fParentSelect[0] = 411; fFlavorSelect = 4; break; + case kPyDPlusStrangePbPbMNR: + case kPyDPlusStrangepPbMNR: + case kPyDPlusStrangeppMNR: + fParentSelect[0] = 431; + fFlavorSelect = 4; + break; case kPyBeauty: case kPyBeautyPbPbMNR: case kPyBeautypPbMNR: case kPyBeautyppMNR: + case kPyBeautyppMNRwmi: fParentSelect[0]= 511; fParentSelect[1]= 521; fParentSelect[2]= 531; @@ -331,10 +437,13 @@ void AliGenPythia::Init() case kPyJpsi: fParentSelect[0] = 443; break; + case kPyMbDefault: case kPyMb: case kPyMbNonDiffr: + case kPyMbMSEL1: case kPyJets: case kPyDirectGamma: + case kPyLhwgMb: break; case kPyW: case kPyZ: @@ -346,17 +455,17 @@ void AliGenPythia::Init() // // Configure detector (EMCAL like) // - fPythia->SetPARU(51, fPycellEtaMax); - fPythia->SetMSTU(51, fPycellNEta); - fPythia->SetMSTU(52, fPycellNPhi); + fPythia->SetPARU(51, fPycellEtaMax); + fPythia->SetMSTU(51, fPycellNEta); + fPythia->SetMSTU(52, fPycellNPhi); // // Configure Jet Finder // - fPythia->SetPARU(58, fPycellThreshold); - fPythia->SetPARU(52, fPycellEtSeed); - fPythia->SetPARU(53, fPycellMinEtJet); - fPythia->SetPARU(54, fPycellMaxRadius); - fPythia->SetMSTU(54, 2); + fPythia->SetPARU(58, fPycellThreshold); + fPythia->SetPARU(52, fPycellEtSeed); + fPythia->SetPARU(53, fPycellMinEtJet); + fPythia->SetPARU(54, fPycellMaxRadius); + fPythia->SetMSTU(54, 2); // // This counts the total number of calls to Pyevnt() per run. fTrialsRun = 0; @@ -375,11 +484,22 @@ void AliGenPythia::Init() fDyBoost = 0; Warning("Init","SetNuclei used. Use SetProjectile + SetTarget instead. fDyBoost has been reset to 0\n"); } - + if (fQuench) { fPythia->InitQuenching(0., 0.1, 0.6e6, 0); } - + fPythia->SetPARJ(200, 0.0); + + if (fQuench == 3) { + // Nestor's change of the splittings + fPythia->SetPARJ(200, 0.8); + fPythia->SetMSTJ(41, 1); // QCD radiation only + fPythia->SetMSTJ(42, 2); // angular ordering + fPythia->SetMSTJ(44, 2); // option to run alpha_s + 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 + } } void AliGenPythia::Generate() @@ -440,7 +560,10 @@ void AliGenPythia::Generate() fPythia->Quench(); } else if (fQuench == 2){ fPythia->Pyquen(208., 0, 0.); + } else if (fQuench == 3) { + // Quenching is via multiplicative correction of the splittings } + // // Switch hadronisation on // @@ -457,7 +580,7 @@ void AliGenPythia::Generate() // Int_t i; - + fNprimaries = 0; Int_t np = fParticles->GetEntriesFast(); if (np == 0) continue; @@ -476,10 +599,16 @@ 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 != kPyJets && fProcess != kPyDirectGamma && fProcess != kPyMbNonDiffr && - fProcess != kPyW && fProcess != kPyZ ) { + fProcess != kPyMbMSEL1 && + fProcess != kPyW && + fProcess != kPyZ && + fProcess != kPyCharmppMNRwmi && + fProcess != kPyBeautyppMNRwmi) { for (i = 0; i < np; i++) { TParticle* iparticle = (TParticle *) fParticles->At(i); @@ -638,7 +767,8 @@ void AliGenPythia::Generate() polar[0], polar[1], polar[2], kPPrimary, nt, 1., ks); pParent[i] = nt; - KeepTrack(nt); + KeepTrack(nt); + fNprimaries++; } // PushTrack loop } } else { @@ -647,9 +777,9 @@ void AliGenPythia::Generate() GetSubEventTime(); - if (pParent) delete[] pParent; - if (pSelected) delete[] pSelected; - if (trackIt) delete[] trackIt; + delete[] pParent; + delete[] pSelected; + delete[] trackIt; if (nc > 0) { switch (fCountMode) { @@ -668,8 +798,7 @@ void AliGenPythia::Generate() } if (jev >= fNpart || fNpart == -1) { fKineBias=Float_t(fNpart)/Float_t(fTrials); - printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev); - + fQ += fPythia->GetVINT(51); fX1 += fPythia->GetVINT(41); fX2 += fPythia->GetVINT(42); @@ -705,20 +834,132 @@ Int_t AliGenPythia::GenerateMB() 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); - if (!CheckTrigger(jet1, jet2)) return 0; + if (!CheckTrigger(jet1, jet2)) { + delete [] pParent; + return 0; + } + } + + // 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 (fFragPhotonInCalo) pdg = 22 ; // Photon + else if (fPi0InCalo) pdg = 111 ; // Pi0 + + for (i=0; i< np; i++) { + TParticle* iparticle = (TParticle *) fParticles->At(i); + if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && + 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 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); + kf = CheckPDGCode(iparticle->GetPdgCode()); + if (kf != fTriggerParticle) continue; + if (iparticle->Pt() == 0.) continue; + if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue; + triggered = kTRUE; + break; + } + if (!triggered) { + delete [] pParent; + return 0; + } + } + + + // 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; + Bool_t theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE; + Float_t yQ; + Int_t pdgQ; + 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 && yQGetEvNumber()>=fDebugEventFirst && gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(2); @@ -844,6 +1088,10 @@ void AliGenPythia::MakeHeader() // // Event Vertex fHeader->SetPrimaryVertex(fVertex); + +// +// Number of primaries + fHeader->SetNProduced(fNprimaries); // // Jets that have triggered @@ -905,19 +1153,9 @@ 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 @@ -942,7 +1180,7 @@ Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2) // GetJets(njets, ntrig, jets); - if (ntrig) triggered = kTRUE; + if (ntrig || fEtMinJet == 0.) triggered = kTRUE; // } else { Int_t ij = 0; @@ -967,9 +1205,11 @@ Bool_t AliGenPythia::CheckTrigger(TParticle* jet1, TParticle* jet2) } -//Checking Kinematics on Child (status code 1, particle code ?, kin cuts -Bool_t AliGenPythia::CheckKinematicsOnChild(){ +Bool_t AliGenPythia::CheckKinematicsOnChild(){ +// +//Checking Kinematics on Child (status code 1, particle code ?, kin cuts +// Bool_t checking = kFALSE; Int_t j, kcode, ks, km; Int_t nPartAcc = 0; //number of particles in the acceptance range @@ -995,14 +1235,6 @@ 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) { // @@ -1021,12 +1253,12 @@ void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) for (Int_t part = 0; part < npart; part++) { - TParticle *MPart = stack->Particle(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(); + 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) { @@ -1036,11 +1268,11 @@ void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) } } - 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(); + 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; @@ -1053,7 +1285,7 @@ void AliGenPythia::LoadEvent(AliStack* stack, Int_t flag, Int_t reHadr) (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; + (fPythia->GetPyjets())->K[2][part+n0] = mPart->GetFirstMother() + 1; } } @@ -1156,6 +1388,81 @@ void AliGenPythia::GetSubEventTime() return; } +Bool_t AliGenPythia::IsInEMCAL(Float_t phi, Float_t eta) +{ + // Is particle in EMCAL acceptance? + // phi in degrees, etamin=-etamax + if(phi > fEMCALMinPhi && phi < fEMCALMaxPhi && + eta < fEMCALEta ) + return kTRUE; + else + return kFALSE; +} + +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 && 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 void AliGenPythia::Streamer(TBuffer &R__b) {