// andreas.morsch@cern.ch
//
+#include <TClonesArray.h>
#include <TDatabasePDG.h>
#include <TParticle.h>
#include <TPDGCode.h>
+#include <TObjArray.h>
#include <TSystem.h>
#include <TTree.h>
#include "AliConst.h"
#include "AliDecayerPythia.h"
#include "AliGenPythia.h"
+#include "AliFastGlauber.h"
#include "AliHeader.h"
#include "AliGenPythiaEventHeader.h"
#include "AliPythia.h"
#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),
+ fItune(-1),
+ fStrucFunc(kCTEQ5L),
+ 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),
+ fQhat(0.),
+ fLength(0.),
+ fImpact(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),
+ fNucPdf(0),
+ fTriggerParticle(0),
+ fTriggerEta(0.9),
+ fTriggerMultiplicity(0),
+ fTriggerMultiplicityEta(0),
+ fCountMode(kCountAll),
+ fHeader(0),
+ fRL(0),
+ fFileName(0),
+ fFragPhotonInCalo(kFALSE),
+ fPi0InCalo(kFALSE) ,
+ 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
- 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();
- SetTriggerParticle();
- fSetNuclei = kFALSE;
- fNewMIS = kFALSE;
- fHFoff = kFALSE;
+ fEnergyCMS = 5500.;
+ SetNuclei(0,0);
if (!AliPythiaRndm::GetPythiaRandom())
- AliPythiaRndm::SetPythiaRandom(GetRandom());
+ AliPythiaRndm::SetPythiaRandom(GetRandom());
}
AliGenPythia::AliGenPythia(Int_t npart)
- :AliGenMC(npart)
+ :AliGenMC(npart),
+ fProcess(kPyCharm),
+ fItune(-1),
+ fStrucFunc(kCTEQ5L),
+ 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),
+ fQhat(0.),
+ fLength(0.),
+ fImpact(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),
+ fNucPdf(0),
+ fTriggerParticle(0),
+ fTriggerEta(0.9),
+ fTriggerMultiplicity(0),
+ fTriggerMultiplicityEta(0),
+ fCountMode(kCountAll),
+ fHeader(0),
+ fRL(0),
+ fFileName(0),
+ fFragPhotonInCalo(kFALSE),
+ fPi0InCalo(kFALSE) ,
+ 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";
- 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();
- SetTriggerParticle();
- // 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()
{
//
fParentWeight=1./Float_t(fNpart);
//
-// Forward Paramters to the AliPythia object
- fDecayer->SetForceDecay(fForceDecay);
- fDecayer->Init();
fPythia->SetCKIN(3,fPtHardMin);
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);
// 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);
}
} 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)
fParentSelect[1] = 421;
fParentSelect[2] = 431;
fParentSelect[3] = 4122;
+ fParentSelect[4] = 4232;
+ fParentSelect[5] = 4132;
+ fParentSelect[6] = 4332;
fFlavorSelect = 4;
break;
case kPyD0PbPbMNR:
fFlavorSelect = 4;
break;
case kPyBeauty:
+ case kPyBeautyJets:
case kPyBeautyPbPbMNR:
case kPyBeautypPbMNR:
case kPyBeautyppMNR:
case kPyJpsi:
fParentSelect[0] = 443;
break;
+ case kPyMbDefault:
case kPyMb:
+ case kPyMbWithDirectPhoton:
case kPyMbNonDiffr:
case kPyMbMSEL1:
case kPyJets:
case kPyDirectGamma:
+ case kPyLhwgMb:
break;
case kPyW:
case kPyZ:
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);
}
+
+ 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
+ } 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};
// 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
//
}
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);
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
//
- 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;
//
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
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());
}
if (nc > 0) {
for (i = 0; i<np; i++) {
if (!pSelected[i]) continue;
- TParticle * iparticle = (TParticle *) fParticles->At(i);
+ TParticle * iparticle = (TParticle *) fParticles.At(i);
kf = CheckPDGCode(iparticle->GetPdgCode());
Int_t ks = iparticle->GetStatusCode();
p[0] = iparticle->Px();
polar[0], polar[1], polar[2],
kPPrimary, nt, 1., ks);
pParent[i] = nt;
- KeepTrack(nt);
+ KeepTrack(nt);
+ fNprimaries++;
} // PushTrack loop
}
} else {
GetSubEventTime();
- if (pParent) delete[] pParent;
- if (pSelected) delete[] pSelected;
- if (trackIt) delete[] trackIt;
+ delete[] pParent;
+ delete[] pSelected;
+ delete[] trackIt;
if (nc > 0) {
switch (fCountMode) {
- 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);
- if (!CheckTrigger(jet1, jet2)) return 0;
+ //
+ //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 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 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 (TMath::Abs(kf) != fTriggerParticle) continue;
+ if (kf != fTriggerParticle) continue;
if (iparticle->Pt() == 0.) continue;
if (TMath::Abs(iparticle->Eta()) > fTriggerEta) continue;
triggered = kTRUE;
break;
}
- if (!triggered) return 0;
+ 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;
+ //
+ // 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; i<np; i++) {
- hvq = (TParticle*)fParticles->At(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 && yQ<fYMax) inYcut=kTRUE;
+ partCheck = (TParticle*)fParticles.At(i);
+ pdg = partCheck->GetPdgCode();
+ 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 && y<fYMax) inYcut=kTRUE;
+ }
+ if(fCutOnChild && TMath::Abs(pdg) == fPdgCodeParticleforAcceptanceCut) {
+ Int_t mi = partCheck->GetFirstMother() - 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 (pParent) delete[] pParent;
+ 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() ) {
- if (pParent) delete[] pParent;
+ delete[] pParent;
return 0;
}
}
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;
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);
} // select particle
} // particle loop
- if (pParent) delete[] pParent;
+ delete[] pParent;
return 1;
}
printf("\nMean Q, x1, x2: %f %f %f\n", fQ, fX1, fX2);
}
-void AliGenPythia::AdjustWeights()
+void AliGenPythia::AdjustWeights() const
{
// Adjust the weights after generation of all events
//
}
}
-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;
}
void AliGenPythia::MakeHeader()
{
+//
+// Make header for the simulated event
+//
if (gAlice) {
if (gAlice->GetEvNumber()>=fDebugEventFirst &&
gAlice->GetEvNumber()<=fDebugEventLast) fPythia->Pylist(2);
//
// 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];
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;
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));
// 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
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];
//
GetJets(njets, ntrig, jets);
- if (ntrig) triggered = kTRUE;
+ if (ntrig || fEtMinJet == 0.) triggered = kTRUE;
//
} else {
Int_t ij = 0;
}
-//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
Int_t numberOfAcceptedParticles = 1;
if (fNumberOfAcceptedParticles != 0) { numberOfAcceptedParticles = fNumberOfAcceptedParticles; }
- Int_t npart = fParticles->GetEntriesFast();
+ Int_t npart = fParticles.GetEntriesFast();
for (j = 0; j<npart; j++) {
- TParticle * jparticle = (TParticle *) fParticles->At(j);
+ TParticle * jparticle = (TParticle *) fParticles.At(j);
kcode = TMath::Abs( CheckPDGCode(jparticle->GetPdgCode()) );
ks = jparticle->GetStatusCode();
km = jparticle->GetFirstMother();
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<TParticle *>(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;
+ }
}
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)
{