#include <TParticleClassPDG.h>
#include <TPDGCode.h>
#include <TLorentzVector.h>
-
+#include <TClonesArray.h>
+#include "AliRunLoader.h"
#include "AliGenDPMjet.h"
#include "AliGenDPMjetEventHeader.h"
-#include "AliPythia.h"
#include "AliRun.h"
#include "AliDpmJetRndm.h"
+#include "AliHeader.h"
+#include "AliStack.h"
+#include "AliMC.h"
- ClassImp(AliGenDPMjet)
-
+ClassImp(AliGenDPMjet)
//______________________________________________________________________________
AliGenDPMjet::AliGenDPMjet()
- :AliGenMC()
+ :AliGenMC(),
+ fBeamEn(2750.),
+ fMinImpactParam(0.),
+ fMaxImpactParam(5.),
+ fICentr(0),
+ fSelectAll(0),
+ fFlavor(0),
+ fTrials(0),
+ fSpectators(1),
+ fSpecn(0),
+ fSpecp(0),
+ fDPMjet(0),
+ fNoGammas(0),
+ fLHC(0),
+ fPi0Decay(1),
+ fDecayAll(0),
+ fGenImpPar(0.),
+ fProcess(kDpmMb),
+ fTriggerMultiplicity(0),
+ fTriggerMultiplicityEta(0),
+ fTriggerMultiplicityPtMin(0)
{
// Constructor
- fParticles = 0;
- fDPMjet = 0;
+ fEnergyCMS = 5500.;
AliDpmJetRndm::SetDpmJetRandom(GetRandom());
}
//______________________________________________________________________________
AliGenDPMjet::AliGenDPMjet(Int_t npart)
- :AliGenMC(npart)
+ :AliGenMC(npart),
+ fBeamEn(2750.),
+ fMinImpactParam(0.),
+ fMaxImpactParam(5.),
+ fICentr(0),
+ fSelectAll(0),
+ fFlavor(0),
+ fTrials(0),
+ fSpectators(1),
+ fSpecn(0),
+ fSpecp(0),
+ fDPMjet(0),
+ fNoGammas(0),
+ fLHC(0),
+ fPi0Decay(1),
+ fDecayAll(0),
+ fGenImpPar(0.),
+ fProcess(kDpmMb),
+ fTriggerMultiplicity(0),
+ fTriggerMultiplicityEta(0),
+ fTriggerMultiplicityPtMin(0)
{
// Default PbPb collisions at 5. 5 TeV
//
+ fEnergyCMS = 5500.;
fName = "DPMJET";
fTitle= "Particle Generator using DPMJET";
-
- SetEnergyCMS();
SetTarget();
SetProjectile();
- SetCentral();
- SetImpactParameterRange();
- SetBoostLHC();
-
- fKeep = 0;
- fDecaysOff = 1;
- fEvaluate = 0;
- fSelectAll = 0;
- fFlavor = 0;
- fSpectators = 1;
fVertex.Set(3);
-
- fParticles = new TClonesArray("TParticle",10000);
-
- // Set random number generator
- fDPMjet = 0;
- // Instance AliPythia
- AliPythia::Instance();
AliDpmJetRndm::SetDpmJetRandom(GetRandom());
}
AliGenDPMjet::AliGenDPMjet(const AliGenDPMjet &/*Dpmjet*/)
-:AliGenMC()
+ :AliGenMC(),
+ fBeamEn(2750.),
+ fMinImpactParam(0.),
+ fMaxImpactParam(5.),
+ fICentr(0),
+ fSelectAll(0),
+ fFlavor(0),
+ fTrials(0),
+ fSpectators(1),
+ fSpecn(0),
+ fSpecp(0),
+ fDPMjet(0),
+ fNoGammas(0),
+ fLHC(0),
+ fPi0Decay(1),
+ fDecayAll(0),
+ fGenImpPar(0.),
+ fProcess(kDpmMb),
+ fTriggerMultiplicity(0),
+ fTriggerMultiplicityEta(0),
+ fTriggerMultiplicityPtMin(0)
{
+ // Dummy copy constructor
+ fEnergyCMS = 5500.;
}
//______________________________________________________________________________
AliGenDPMjet::~AliGenDPMjet()
{
// Destructor
- delete fParticles;
}
-
-
//______________________________________________________________________________
void AliGenDPMjet::Init()
{
// fICentr<-99 -> fraction of x-sec. = XSFRAC
// fICentr=-1. -> evaporation/fzc suppressed
// fICentr<-1. -> evaporation/fzc suppressed
- if (fAProjectile == 1 && fZProjectile == 1) fDPMjet->SetfIdp(1);
+ if (fAProjectile == 1 && TMath::Abs(fZProjectile == 1)) fDPMjet->SetfIdp(1);
fDPMjet->SetfFCentr(fICentr);
fDPMjet->SetbRange(fMinImpactParam, fMaxImpactParam);
-
+ fDPMjet->SetPi0Decay(fPi0Decay);
+ fDPMjet->SetDecayAll(fDecayAll);
//
// Initialize DPMjet
//
{
// Generate one event
- Float_t polar[3] = {0,0,0};
- Float_t origin[3] = {0,0,0};
- Float_t origin0[3] = {0,0,0};
- Float_t p[3];
+ Double_t polar[3] = {0,0,0};
+ Double_t origin[3] = {0,0,0};
+ Double_t p[4] = {0};
Float_t tof;
// converts from mm/c to s
fSpecp = 0;
// --------------------------------------------------------------------------
fDPMjet->GenerateEvent();
+
fTrials++;
- fDPMjet->ImportParticles(fParticles,"All");
+ fDPMjet->ImportParticles(&fParticles,"All");
if (fLHC) Boost();
// Temporaneo
fGenImpPar = fDPMjet->GetBImpac();
-
- Int_t np = fParticles->GetEntriesFast();
- printf("\n **************************************************%d\n",np);
- Int_t nc=0;
- if (np==0) continue;
+
+ if(TMath::Abs(fXingAngleY) > 1.e-10) BeamCrossAngle();
+
+ Int_t np = fParticles.GetEntriesFast();
+ //
+ // Multiplicity Trigger
+ if (fTriggerMultiplicity > 0) {
+ Int_t multiplicity = 0;
+ for (Int_t i = 0; i < np; i++) {
+ TParticle * iparticle = (TParticle *) fParticles.At(i);
+
+ Int_t statusCode = iparticle->GetStatusCode();
+
+ // Initial state particle
+ if (statusCode != 1)
+ continue;
+ // eta cut
+ if (fTriggerMultiplicityEta > 0 && TMath::Abs(iparticle->Eta()) > fTriggerMultiplicityEta)
+ continue;
+ // pt cut
+ if (iparticle->Pt() < fTriggerMultiplicityPtMin)
+ continue;
+
+ TParticlePDG* pdgPart = iparticle->GetPDG();
+ if (pdgPart && pdgPart->Charge() == 0)
+ continue;
+ ++multiplicity;
+ }
+ //
+ //
+ if (multiplicity < fTriggerMultiplicity) continue;
+ Printf("Triggered on event with multiplicity of %d >= %d", multiplicity, fTriggerMultiplicity);
+ }
+
+ Int_t nc = 0;
+ if (np == 0) continue;
+
Int_t i;
Int_t* newPos = new Int_t[np];
Int_t* pSelected = new Int_t[np];
pSelected[i] = 0;
}
-// Get event vertex
-
- fVertex[0] = origin0[0];
- fVertex[1] = origin0[1];
- fVertex[2] = origin0[2];
-
// First select parent particles
for (i = 0; i<np; i++) {
- TParticle *iparticle = (TParticle *) fParticles->At(i);
+ TParticle *iparticle = (TParticle *) fParticles.At(i);
// Is this a parent particle ?
Bool_t hasSelectedDaughters = kFALSE;
kf = iparticle->GetPdgCode();
- if (kf == 92) continue;
+ if (kf == 92 || kf == 99999) continue;
ks = iparticle->GetStatusCode();
// No initial state partons
if (ks==21) continue;
if (!fSelectAll) selected = KinematicSelection(iparticle, 0) &&
SelectFlavor(kf);
+
+
hasSelectedDaughters = DaughtersSelection(iparticle);
+
// Put particle on the stack if it is either selected or
// it is the mother of at least one seleted particle
for (i=0; i<np; i++) {
- TParticle *iparticle = (TParticle *) fParticles->At(i);
+ TParticle *iparticle = (TParticle *) fParticles.At(i);
// Is this a final state particle ?
// Write particles to stack
for (i = 0; i<np; i++) {
- TParticle * iparticle = (TParticle *) fParticles->At(i);
+ TParticle * iparticle = (TParticle *) fParticles.At(i);
Bool_t hasMother = (iparticle->GetFirstMother()>=0);
if (pSelected[i]) {
p[0] = iparticle->Px();
p[1] = iparticle->Py();
p[2] = iparticle->Pz();
+ p[3] = iparticle->Energy();
origin[0] = fVertex[0]+iparticle->Vx()/10; // [cm]
origin[1] = fVertex[1]+iparticle->Vy()/10; // [cm]
origin[2] = fVertex[2]+iparticle->Vz()/10; // [cm]
TParticle* mother = 0;
if (hasMother) {
imo = iparticle->GetFirstMother();
- mother = (TParticle *) fParticles->At(imo);
- imo = (mother->GetPdgCode() != 92) ? imo = newPos[imo] : -1;
+ mother = (TParticle *) fParticles.At(imo);
+ imo = (mother->GetPdgCode() != 92 && mother->GetPdgCode() != 99999) ? newPos[imo] : -1;
} // if has mother
- Bool_t tFlag = (fTrackIt && (ks == 1));
+
- PushTrack(tFlag,imo,kf,p,origin,polar,tof,kPNoProcess,nt, 1., ks);
+ Bool_t tFlag = (fTrackIt && (ks == 1));
+ PushTrack(tFlag, imo, kf,
+ p[0], p[1], p[2], p[3],
+ origin[0], origin[1], origin[2], tof,
+ polar[0], polar[1], polar[2],
+ kPNoProcess, nt, 1., ks);
KeepTrack(nt);
newPos[i] = nt;
} // if selected
SetHighWaterMark(nt);
}
-
-//______________________________________________________________________________
-void AliGenDPMjet::KeepFullEvent()
-{
- fKeep=1;
-}
-
-
-//______________________________________________________________________________
-/*void AliGenDPMjet::EvaluateCrossSections()
-{
-// Glauber Calculation of geometrical x-section
-//
- Float_t xTot = 0.; // barn
- Float_t xTotHard = 0.; // barn
- Float_t xPart = 0.; // barn
- Float_t xPartHard = 0.; // barn
- Float_t sigmaHard = 0.1; // mbarn
- Float_t bMin = 0.;
- Float_t bMax = fDPMjet->GetProjRadius()+fDPMjet->GetTargRadius();
- const Float_t kdib = 0.2;
- Int_t kMax = Int_t((bMax-bMin)/kdib)+1;
-
-
- printf("\n Projectile Radius (fm): %f \n",fDPMjet->GetProjRadius());
- printf("\n Target Radius (fm): %f \n",fDPMjet->GetTargRadius());
- Int_t i;
- Float_t oldvalue= 0.;
-
- Float_t* b = new Float_t[kMax];
- Float_t* si1 = new Float_t[kMax];
- Float_t* si2 = new Float_t[kMax];
-
- for (i = 0; i < kMax; i++)
- {
- Float_t xb = bMin+i*kdib;
- Float_t ov;
- ov=fDPMjet->Profile(xb);
- // ATT!->Manca la x-sec anel. nucleone-nucleone
- Float_t gb = 2.*0.01*fDPMjet->TMath::Pi()*kdib*xb*(1.-TMath::Exp(-fDPMjet->GetXSFrac()*ov));
- Float_t gbh = 2.*0.01*fDPMjet->TMath::Pi()*kdib*xb*sigmaHard*ov;
- xTot+=gb;
- xTotHard += gbh;
- if (xb > fMinImpactParam && xb < fMaxImpactParam)
- {
- xPart += gb;
- xPartHard += gbh;
- }
-
- if(oldvalue) if ((xTot-oldvalue)/oldvalue<0.0001) break;
- oldvalue = xTot;
- printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot);
- printf("\n Hard cross section (barn): %d %f %f \n\n",i, xb, xTotHard);
- if (i>0) {
- si1[i] = gb/kdib;
- si2[i] = gbh/gb;
- b[i] = xb;
- }
- }
-
- printf("\n Total cross section (barn): %f \n",xTot);
- printf("\n Hard cross section (barn): %f \n \n",xTotHard);
- printf("\n Partial cross section (barn): %f %f \n",xPart, xPart/xTot*100.);
- printf("\n Partial hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.);
-
-// Store result as a graph
- b[0] = 0;
- si1[0] = 0;
- si2[0]=si2[1];
-
- fDsigmaDb = new TGraph(i, b, si1);
- fDnDb = new TGraph(i, b, si2);
-}*/
-
-
//______________________________________________________________________________
Bool_t AliGenDPMjet::DaughtersSelection(TParticle* iparticle)
{
imin = iparticle->GetFirstDaughter();
imax = iparticle->GetLastDaughter();
for (i = imin; i <= imax; i++){
- TParticle * jparticle = (TParticle *) fParticles->At(i);
+ TParticle * jparticle = (TParticle *) fParticles.At(i);
Int_t ip = jparticle->GetPdgCode();
if (KinematicSelection(jparticle,0)&&SelectFlavor(ip)) {
selected=kTRUE; break;
//______________________________________________________________________________
void AliGenDPMjet::MakeHeader()
{
+ printf("MakeHeader %13.3f \n", fDPMjet->GetBImpac());
// Builds the event header, to be called after each event
AliGenEventHeader* header = new AliGenDPMjetEventHeader("DPMJET");
((AliGenDPMjetEventHeader*) header)->SetNProduced(fDPMjet->GetNumStablePc());
((AliGenDPMjetEventHeader*) header)->SetImpactParameter(fDPMjet->GetBImpac());
((AliGenDPMjetEventHeader*) header)->SetTotalEnergy(fDPMjet->GetTotEnergy());
- ((AliGenDPMjetEventHeader*) header)->SetParticipants(fDPMjet->GetfIp(),
- fDPMjet->GetfIt());
-
-// Bookkeeping for kinematic bias
+ ((AliGenDPMjetEventHeader*) header)->SetParticipants(fDPMjet->GetProjParticipants(),
+ fDPMjet->GetTargParticipants());
+ ((AliGenDPMjetEventHeader*) header)->SetProcessType(fDPMjet->GetProcessCode());
+ // Bookkeeping for kinematic bias
((AliGenDPMjetEventHeader*) header)->SetTrials(fTrials);
-// Event Vertex
+ // Event Vertex
header->SetPrimaryVertex(fVertex);
gAlice->SetGenEventHeader(header);
+ AddHeader(header);
}
+void AliGenDPMjet::AddHeader(AliGenEventHeader* header)
+{
+ // Add header to container or runloader
+ if (fContainer) {
+ fContainer->AddHeader(header);
+ } else {
+ AliRunLoader::Instance()->GetHeader()->SetGenEventHeader(header);
+ }
+}
//______________________________________________________________________________
}
+void AliGenDPMjet::FinishRun()
+{
+ // Print run statistics
+ fDPMjet->Dt_Dtuout();
+}
+
+
//______________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff