// andreas.morsch@cern.ch
//
+#include <TClonesArray.h>
#include <TDatabasePDG.h>
#include <TParticle.h>
#include <TPDGCode.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) ,
+ fCheckEMCAL(kFALSE),
+ fCheckPHOS(kFALSE),
+ fFragPhotonOrPi0MinPt(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;
+ 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) ,
+ fCheckEMCAL(kFALSE),
+ fCheckPHOS(kFALSE),
+ fFragPhotonOrPi0MinPt(0),
+ fPHOSMinPhi(219.),
+ fPHOSMaxPhi(321.),
+ fPHOSEta(0.13),
+ fEMCALMinPhi(79.),
+ fEMCALMaxPhi(191.),
+ fEMCALEta(0.71)
{
// default charm production at 5. 5 TeV
// semimuonic decay
//
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);
// 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);
+ // Forward Paramters to the AliPythia object
+ fDecayer->SetForceDecay(fForceDecay);
+ fDecayer->Init();
// Switch off Heavy Flavors on request
if (fHFoff) {
fPythia->SetMSTP(58, 3);
fPythia->SetMSTJ(45, 3);
for (Int_t i = 156; i <= 160; i++) fPythia->SetMDME(i, 1, 0);
}
- //
- fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc);
+
// Parent and Children Selection
switch (fProcess)
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:
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()
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
//
//
Int_t i;
-
+ 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 != kPyJets &&
fProcess != kPyDirectGamma &&
fProcess != kPyMbNonDiffr &&
fProcess != kPyMbMSEL1 &&
- fProcess != kPyW && fProcess != kPyZ &&
- fProcess != kPyCharmppMNRwmi && fProcess != kPyBeautyppMNRwmi) {
+ fProcess != kPyW &&
+ fProcess != kPyZ &&
+ fProcess != kPyCharmppMNRwmi &&
+ fProcess != kPyBeautyppMNRwmi) {
for (i = 0; i < np; i++) {
TParticle* iparticle = (TParticle *) fParticles->At(i);
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) {
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;
+ }
+
if (fTriggerParticle) {
Bool_t triggered = kFALSE;
for (i = 0; i < np; i++) {
triggered = kTRUE;
break;
}
- if (!triggered) return 0;
+ if (!triggered) {
+ delete [] pParent;
+ return 0;
+ }
}
if(yQ>fYMin && yQ<fYMax) inYcut=kTRUE;
}
if (!theQ || !theQbar || !inYcut) {
- if (pParent) delete[] pParent;
+ 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 == kPyMbNonDiffr)
&& (fCutOnChild == 1) ) {
if ( !CheckKinematicsOnChild() ) {
- if (pParent) delete[] pParent;
+ delete[] pParent;
return 0;
}
}
origin[0], origin[1], origin[2], tof,
polar[0], polar[1], polar[2],
kPPrimary, nt, 1., ks);
+ fNprimaries++;
//
// Special Treatment to store color-flow
//
} // 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::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
AddHeader(fHeader);
}
-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
//
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
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)
{
//
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) {
}
}
- 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;
(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;
}
}
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;
+}
+
+
+
#ifdef never
void AliGenPythia::Streamer(TBuffer &R__b)
{
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff