+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
#include <THerwig6.h>
#include "AliGenHerwig.h"
+#include "AliGenHerwigEventHeader.h"
#include "AliHerwigRndm.h"
#include "AliMC.h"
#include "AliRun.h"
#include "driver.h"
+using std::cerr;
+using std::endl;
+
ClassImp(AliGenHerwig)
fHerwig(0x0),
fProcess(0),
fPtHardMin(0.),
+ fPtHardMax(9999.),
fPtRMS(0.),
fMaxPr(10),
fMaxErrors(1000),
fEnSoft(1),
- fEv1Pr(0),
- fEv2Pr(0),
- fFileName(0)
+ fFileName(0),
+ fEtaMinParton(-20.),
+ fEtaMaxParton(20.),
+ fPhiMinParton(0.),
+ fPhiMaxParton(2.* TMath::Pi()),
+ fEtaMinGamma(-20.),
+ fEtaMaxGamma(20.),
+ fPhiMinGamma(0.),
+ fPhiMaxGamma(2. * TMath::Pi()),
+ fHeader(0)
{
// Constructor
fEnergyCMS = 14000;
fHerwig(0x0),
fProcess(0),
fPtHardMin(0.),
+ fPtHardMax(9999.),
fPtRMS(0.),
fMaxPr(10),
fMaxErrors(1000),
fEnSoft(1),
- fEv1Pr(0),
- fEv2Pr(0),
- fFileName(0)
+ fFileName(0),
+ fEtaMinParton(-20.),
+ fEtaMaxParton(20.),
+ fPhiMinParton(0.),
+ fPhiMaxParton(2.* TMath::Pi()),
+ fEtaMinGamma(-20.),
+ fEtaMaxGamma(20.),
+ fPhiMinGamma(0.),
+ fPhiMaxGamma(2. * TMath::Pi()),
+ fHeader(0)
{
+// Constructor
fEnergyCMS = 14000;
SetTarget();
SetProjectile();
// Destructor
}
-void AliGenHerwig::SetEventListRange(Int_t eventFirst, Int_t eventLast)
-{
- fEv1Pr = ++eventFirst;
- fEv2Pr = ++eventLast;
- if ( fEv2Pr == -1 ) fEv2Pr = fEv2Pr;
-}
-
void AliGenHerwig::Init()
{
// Initialisation
SetMC(new THerwig6());
fHerwig=(THerwig6*) fMCEvGen;
// initialize common blocks
- fHerwig->Initialize(fProjectile, fTarget, fMomentum1, fMomentum2, fProcess);
+ fHerwig->Initialize(fProjectile.Data(), fTarget.Data(), fMomentum1, fMomentum2, fProcess); //
// reset parameters according to user needs
InitPDF();
fHerwig->SetPTMIN(fPtHardMin);
+ fHerwig->SetPTMAX(fPtHardMax);
fHerwig->SetPTRMS(fPtRMS);
+ printf("SetMAXPR %15d \n", fMaxPr);
fHerwig->SetMAXPR(fMaxPr);
fHerwig->SetMAXER(fMaxErrors);
fHerwig->SetENSOF(fEnSoft);
-
- fHerwig->SetEV1PR(fEv1Pr);
- fHerwig->SetEV2PR(fEv2Pr);
-
// C---D,U,S,C,B,T QUARK AND GLUON MASSES (IN THAT ORDER)
// RMASS(1)=0.32
// RMASS(2)=0.32
fHerwig->SetRMASS(4,1.2);
fHerwig->SetRMASS(5,4.75);
- if ( fProcess < 0 ) strncpy(VVJIN.QQIN,fFileName.Data(),50);
+ if ( fProcess < 0 ) strncpy(VVJIN.QQIN,fFileName.Data(), 49);
- fHerwig->Hwusta("PI0 ");
+ //fHerwig->Hwusta("PI0 ");
// compute parameter dependent constants
fHerwig->PrepareRun();
fHerwig->SetMAXER(fMaxErrors);
fHerwig->SetENSOF(fEnSoft);
- fHerwig->SetEV1PR(fEv1Pr);
- fHerwig->SetEV2PR(fEv2Pr);
-
// C---D,U,S,C,B,T QUARK AND GLUON MASSES (IN THAT ORDER)
// RMASS(1)=0.32
// RMASS(2)=0.32
fHerwig->SetRMASS(4,1.2);
fHerwig->SetRMASS(5,4.75);
- if ( fProcess < 0 ) strncpy(VVJIN.QQIN,fFileName.Data(),50);
+ if ( fProcess < 0 ) strncpy(VVJIN.QQIN,fFileName.Data(), 49);
- fHerwig->Hwusta("PI0 ");
+ // fHerwig->Hwusta("PI0 ");
// compute parameter dependent constants
fHerwig->PrepareRunJimmy();
void AliGenHerwig::InitPDF()
{
+// Initialize PDF
switch(fStrucFunc)
{
// ONLY USES LHAPDF STRUCTURE FUNCTIONS
{
// 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[4], random[6];
+ Float_t polar[3] = {0,0,0};
+ Float_t origin[3] = {0,0,0};
+ Float_t p[4];
static TClonesArray *particles;
// converts from mm/c to s
//
Int_t nt=0;
Int_t jev=0;
- Int_t j, kf, ks, imo;
+ Int_t kf, ks, imo;
kf=0;
if(!particles) particles=new TClonesArray("TParticle",10000);
fTrials=0;
- for (j=0;j<3;j++) origin0[j]=fOrigin[j];
- if(fVertexSmear==kPerEvent) {
- Rndm(random,6);
- for (j=0;j<3;j++) {
- origin0[j]+=fOsigma[j]*TMath::Cos(2*random[2*j]*TMath::Pi())*
- TMath::Sqrt(-2*TMath::Log(random[2*j+1]));
- }
- }
+
+ // Set collision vertex position
+ if (fVertexSmear == kPerEvent) Vertex();
while(1)
{
Int_t np = particles->GetEntriesFast()-1;
if (np == 0 ) continue;
- Int_t nc=0;
+ //Check hard partons or direct gamma in kine range
+
+ if (fProcess == kHeJets || fProcess == kHeDirectGamma) {
+ TParticle* parton1 = (TParticle *) particles->At(6);
+ TParticle* parton2 = (TParticle *) particles->At(7);
+ if (!CheckParton(parton1, parton2)) continue ;
+ }
+ Int_t nc = 0;
+ fNprimaries = 0;
+
Int_t * newPos = new Int_t[np];
for (Int_t i = 0; i<np; i++) *(newPos+i)=-1;
p[1]=iparticle->Py();
p[2]=iparticle->Pz();
p[3]=iparticle->Energy();
- origin[0]=origin0[0]+iparticle->Vx()/10;
- origin[1]=origin0[1]+iparticle->Vy()/10;
- origin[2]=origin0[2]+iparticle->Vz()/10;
- Float_t tof = kconv*iparticle->T();
+
+ origin[0] = fVertex[0] + iparticle->Vx()/10; // [cm]
+ origin[1] = fVertex[1] + iparticle->Vy()/10; // [cm]
+ origin[2] = fVertex[2] + iparticle->Vz()/10; // [cm]
+
+ Float_t tof = fTime + kconv*iparticle->T();
Int_t iparent = (imo > -1) ? newPos[imo] : -1;
Int_t trackIt = (ks == 1) && fTrackIt;
PushTrack(trackIt, iparent, kf,
kPPrimary, nt, fHerwig->GetEVWGT(), ks);
KeepTrack(nt);
newPos[i]=nt;
+ fNprimaries++;
} // end of if: selection of particle
} // end of for: particle loop
if (newPos) delete[] newPos;
- // MakeHeader();
if (nc > 0) {
jev+=nc;
if (jev >= fNpart || fNpart == -1) {
}
}
}
+//
+ MakeHeader();
+//
SetHighWaterMark(nt);
// adjust weight due to kinematic selection
AdjustWeights();
// get cross-section
fXsection=fHerwig->GetAVWGT();
+ //printf(">> trials << %d\n",fTrials);
+}
+
+Bool_t AliGenHerwig::CheckParton(const TParticle* parton1, const TParticle* parton2)
+{
+// Check the kinematic trigger condition
+//
+//Select events with parton max energy
+ if(fPtHardMax < parton1->Pt()) return kFALSE;
+
+// Select events within angular window
+ Double_t eta[2];
+ eta[0] = parton1->Eta();
+ eta[1] = parton2->Eta();
+ Double_t phi[2];
+ phi[0] = parton1->Phi();
+ phi[1] = parton2->Phi();
+ Int_t pdg[2];
+ pdg[0] = parton1->GetPdgCode();
+ pdg[1] = parton2->GetPdgCode();
+ printf("min %f, max %f\n",fPtHardMin, fPtHardMax);
+ printf("Parton 1: %s, pT= %2.2f, eta = %1.2f, phi = %2.2f\n", parton1->GetName(),parton1->Pt(), eta[0],phi[0]*TMath::RadToDeg());
+ printf("Parton 2: %s, pT= %2.2f, eta = %1.2f, phi = %2.2f\n", parton2->GetName(),parton2->Pt(), eta[1],phi[1]*TMath::RadToDeg());
+
+ if (fProcess == kHeJets) {
+ //Check if one of the 2 outgoing partons are in the eta-phi window
+ for(Int_t i = 0; i < 2; i++)
+ if ((eta[i] < fEtaMaxParton && eta[i] > fEtaMinParton) &&
+ (phi[i] < fPhiMaxParton && phi[i] > fPhiMinParton)) return kTRUE ;
+ }
+
+ else {
+ //Check if the gamma and the jet are in the eta-phi window
+ Int_t igj = 0;
+ Int_t ijj = 0;
+ if(pdg[0] == 22) ijj=1;
+ else igj=1;
+ if ((eta[ijj] < fEtaMaxParton && eta[ijj] > fEtaMinParton) &&
+ (phi[ijj] < fPhiMaxParton && phi[ijj] > fPhiMinParton)) {
+
+ if ((eta[igj] < fEtaMaxGamma && eta[igj] > fEtaMinGamma) &&
+ (phi[igj] < fPhiMaxGamma && phi[igj] > fPhiMinGamma)) return kTRUE;
+
+ }
+ }
+
+ return kFALSE ;
}
void AliGenHerwig::AdjustWeights()
fKeep=1;
}
-Bool_t AliGenHerwig::DaughtersSelection(TParticle* iparticle, TClonesArray* particles)
+Bool_t AliGenHerwig::DaughtersSelection(const TParticle* iparticle, const TClonesArray* particles)
{
//
// Looks recursively if one of the daughters has been selected
}
-Bool_t AliGenHerwig::SelectFlavor(Int_t pid)
+Bool_t AliGenHerwig::SelectFlavor(Int_t pid) const
{
// Select flavor of particle
// 0: all
return (fFlavor == ifl);
}
-Bool_t AliGenHerwig::Stable(TParticle* particle)
+Bool_t AliGenHerwig::Stable(const TParticle* particle) const
{
// Return true for a stable particle
//
}
+
+void AliGenHerwig::MakeHeader()
+{
+//
+// Make header for the simulated event
+//
+ if (fHeader) delete fHeader;
+ fHeader = new AliGenHerwigEventHeader("Herwig");
+//
+// Event type
+ ((AliGenHerwigEventHeader*) fHeader)->SetProcessType(fHerwig->GetIHPRO());
+//
+// Number of trials
+ ((AliGenHerwigEventHeader*) fHeader)->SetTrials(fTrials);
+//
+// Event weight (cross section)
+ ((AliGenHerwigEventHeader*) fHeader)->SetWeight(fHerwig->GetEVWGT());
+//
+// Event Vertex
+ fHeader->SetPrimaryVertex(fVertex);
+ fHeader->SetInteractionTime(fTime);
+//
+// Number of primaries
+ fHeader->SetNProduced(fNprimaries);
+// Pass header
+//
+ AddHeader(fHeader);
+ fHeader = 0x0;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff