+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
// The main Herwig options are accessable for the user through this interface.
// Uses the THerwig implementation of TGenerator.
-#include "AliGenHerwig.h"
-#include "AliRun.h"
+#include <Riostream.h>
+#include <TClonesArray.h>
#include <TParticle.h>
-#include "THerwig6.h"
-#include "Riostream.h"
+#include <THerwig6.h>
+
+#include "AliGenHerwig.h"
+#include "AliGenHerwigEventHeader.h"
+#include "AliHerwigRndm.h"
+#include "AliMC.h"
+#include "AliRun.h"
+#include "driver.h"
- ClassImp(AliGenHerwig)
+using std::cerr;
+using std::endl;
-static TRandom * sRandom;
+ClassImp(AliGenHerwig)
-AliGenHerwig::AliGenHerwig()
+
+ AliGenHerwig::AliGenHerwig() :
+ AliGenMC(),
+ fAutPDF("LHAPDF"),
+ fModPDF(19070),
+ fStrucFunc(kCTEQ5L),
+ fKeep(0),
+ fDecaysOff(1),
+ fTrigger(0),
+ fSelectAll(0),
+ fFlavor(0),
+ fMomentum1(7000),
+ fMomentum2(7000),
+ fKineBias(1),
+ fTrials(0),
+ fXsection(0),
+ fHerwig(0x0),
+ fProcess(0),
+ fPtHardMin(0.),
+ fPtHardMax(9999.),
+ fPtRMS(0.),
+ fMaxPr(10),
+ fMaxErrors(1000),
+ fEnSoft(1),
+ 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;
}
AliGenHerwig::AliGenHerwig(Int_t npart)
- :AliGenMC(npart)
+ :AliGenMC(npart),
+ fAutPDF("LHAPDF"),
+ fModPDF(19070),
+ fStrucFunc(kCTEQ5L),
+ fKeep(0),
+ fDecaysOff(1),
+ fTrigger(0),
+ fSelectAll(0),
+ fFlavor(0),
+ fMomentum1(7000),
+ fMomentum2(7000),
+ fKineBias(1),
+ fTrials(0),
+ fXsection(0),
+ fHerwig(0x0),
+ fProcess(0),
+ fPtHardMin(0.),
+ fPtHardMax(9999.),
+ fPtRMS(0.),
+ fMaxPr(10),
+ fMaxErrors(1000),
+ fEnSoft(1),
+ fFileName(0),
+ fEtaMinParton(-20.),
+ fEtaMaxParton(20.),
+ fPhiMinParton(0.),
+ fPhiMaxParton(2.* TMath::Pi()),
+ fEtaMinGamma(-20.),
+ fEtaMaxGamma(20.),
+ fPhiMinGamma(0.),
+ fPhiMaxGamma(2. * TMath::Pi()),
+ fHeader(0)
{
- SetBeamMomenta();
+// Constructor
+ fEnergyCMS = 14000;
SetTarget();
SetProjectile();
- SetStrucFunc(kGRVLO98);
- fKeep=0;
- fTrigger=0;
- fDecaysOff=1;
- fSelectAll=0;
- fFlavor=0;
- fPtHardMin=10.;
- fPtRMS=0.0;
- fEnSoft=1.0;
- fMaxPr=1;
- fMaxErrors=1000;
-// Set random number
- if (!sRandom) sRandom=fRandom;
-}
-
-AliGenHerwig::AliGenHerwig(const AliGenHerwig & Herwig)
-{
-// copy constructor
+ // Set random number generator
+ AliHerwigRndm::SetHerwigRandom(GetRandom());
}
-
AliGenHerwig::~AliGenHerwig()
{
// Destructor
fTarget.Resize(8);
fProjectile.Resize(8);
SetMC(new THerwig6());
- fHerwig=(THerwig6*) fgMCEvGen;
+ 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);
+// C---D,U,S,C,B,T QUARK AND GLUON MASSES (IN THAT ORDER)
+// RMASS(1)=0.32
+// RMASS(2)=0.32
+// RMASS(3)=0.5
+// RMASS(4)=1.55
+// RMASS(5)=4.75
+// RMASS(6)=174.3
+// RMASS(13)=0.75
+
+ fHerwig->SetRMASS(4,1.2);
+ fHerwig->SetRMASS(5,4.75);
+
+ if ( fProcess < 0 ) strncpy(VVJIN.QQIN,fFileName.Data(), 49);
+
+ //fHerwig->Hwusta("PI0 ");
+
// compute parameter dependent constants
fHerwig->PrepareRun();
}
+void AliGenHerwig::InitJimmy()
+{
+// Initialisation
+ fTarget.Resize(8);
+ fProjectile.Resize(8);
+ SetMC(new THerwig6());
+ fHerwig=(THerwig6*) fMCEvGen;
+ // initialize common blocks
+ fHerwig->InitializeJimmy(fProjectile, fTarget, fMomentum1, fMomentum2, fProcess);
+ // reset parameters according to user needs
+ InitPDF();
+ fHerwig->SetPTMIN(fPtHardMin);
+ fHerwig->SetPTRMS(fPtRMS);
+ fHerwig->SetMAXPR(fMaxPr);
+ fHerwig->SetMAXER(fMaxErrors);
+ fHerwig->SetENSOF(fEnSoft);
+
+// C---D,U,S,C,B,T QUARK AND GLUON MASSES (IN THAT ORDER)
+// RMASS(1)=0.32
+// RMASS(2)=0.32
+// RMASS(3)=0.5
+// RMASS(4)=1.55
+// RMASS(5)=4.75
+// RMASS(6)=174.3
+// RMASS(13)=0.75
+
+ fHerwig->SetRMASS(4,1.2);
+ fHerwig->SetRMASS(5,4.75);
+
+ if ( fProcess < 0 ) strncpy(VVJIN.QQIN,fFileName.Data(), 49);
+
+ // fHerwig->Hwusta("PI0 ");
+
+ // compute parameter dependent constants
+ fHerwig->PrepareRunJimmy();
+}
+
void AliGenHerwig::InitPDF()
{
+// Initialize PDF
switch(fStrucFunc)
{
- case kGRVLO:
- fModPDF=5;
- fAutPDF="GRV";
+// ONLY USES LHAPDF STRUCTURE FUNCTIONS
+ case kGRVLO98:
+ fModPDF=80060;
+ fAutPDF="HWLHAPDF";
break;
- case kGRVHO:
- fModPDF=6;
- fAutPDF="GRV";
+ case kCTEQ6:
+ fModPDF=10040;
+ fAutPDF="HWLHAPDF";
break;
- case kGRVLO98:
- fModPDF=12;
- fAutPDF="GRV";
+ case kCTEQ61:
+ fModPDF=10100;
+ fAutPDF="HWLHAPDF";
break;
- case kMRSDminus:
- fModPDF=31;
- fAutPDF="MRS";
+ case kCTEQ6m:
+ fModPDF=10050;
+ fAutPDF="HWLHAPDF";
break;
- case kMRSD0:
- fModPDF=30;
- fAutPDF="MRS";
+ case kCTEQ6l:
+ fModPDF=10041;
+ fAutPDF="HWLHAPDF";
break;
- case kMRSG:
- fModPDF=41;
- fAutPDF="MRS";
+ case kCTEQ6ll:
+ fModPDF=10042;
+ fAutPDF="HWLHAPDF";
break;
- case kMRSTcgLO:
- fModPDF=72;
- fAutPDF="MRS";
+ case kCTEQ5M:
+ fModPDF=19050;
+ fAutPDF="HWLHAPDF";
+ break;
+ case kCTEQ5L:
+ fModPDF=19070;
+ fAutPDF="HWLHAPDF";
break;
case kCTEQ4M:
- fModPDF=34;
- fAutPDF="CTEQ";
+ fModPDF=19150;
+ fAutPDF="HWLHAPDF";
break;
- case kCTEQ5L:
- fModPDF=46;
- fAutPDF="CTEQ";
+ case kCTEQ4L:
+ fModPDF=19170;
+ fAutPDF="HWLHAPDF";
break;
+// case kMRST2004nlo:
+// fModPDF=20400;
+// fAutPDF="HWLHAPDF";
+// break;
default:
cerr << "This structure function is not inplemented " << fStrucFunc << endl;
break;
}
- fAutPDF.Resize(20);
+ fAutPDF.Resize(20);
fHerwig->SetMODPDF(1,fModPDF);
fHerwig->SetMODPDF(2,fModPDF);
fHerwig->SetAUTPDF(1,fAutPDF);
{
// 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
const Float_t kconv=0.001/2.999792458e8;
//
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)
{
fHerwig->GenerateEvent();
fHerwig->ImportParticles(particles,"All");
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;
-
+
for (Int_t i = 0; i<np; i++) {
TParticle * iparticle = (TParticle *) particles->At(i);
imo = iparticle->GetFirstMother();
kf = iparticle->GetPdgCode();
ks = iparticle->GetStatusCode();
- if (ks != 3 &&
- KinematicSelection(iparticle,0))
+ if (ks != 3 &&
+ KinematicSelection(iparticle,0))
{
nc++;
p[0]=iparticle->Px();
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;
- gAlice->SetTrack(trackIt, iparent, kf,
- p[0], p[1], p[2], p[3],
- origin[0], origin[1], origin[2],
- tof,
- polar[0], polar[1], polar[2],
- kPPrimary, nt, 1., ks);
+ PushTrack(trackIt, iparent, kf,
+ p[0], p[1], p[2], p[3],
+ origin[0], origin[1], origin[2],
+ tof,
+ polar[0], polar[1], polar[2],
+ 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;
- printf("\n I've put %i particles on the stack \n",nc);
- // MakeHeader();
- printf("nc: %d %d\n", nc, fNpart);
-
if (nc > 0) {
jev+=nc;
if (jev >= fNpart || fNpart == -1) {
fKineBias=Float_t(fNpart)/Float_t(fTrials);
- printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev);
break;
}
}
}
+//
+ 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()
{
// Adjust the weights after generation of all events
TParticle *part;
- Int_t ntrack=gAlice->GetNtrack();
+ Int_t ntrack=gAlice->GetMCApp()->GetNtrack();
for (Int_t i=0; i<ntrack; i++) {
- part= gAlice->Particle(i);
+ part= gAlice->GetMCApp()->Particle(i);
part->SetWeight(part->GetWeight()*fKineBias);
}
}
-
+
void AliGenHerwig::KeepFullEvent()
{
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 selected=kFALSE;
if (hasDaughters) {
imin=iparticle->GetFirstDaughter();
- imax=iparticle->GetLastDaughter();
+ imax=iparticle->GetLastDaughter();
for (i=imin; i<= imax; i++){
- TParticle * jparticle = (TParticle *) particles->At(i);
+ TParticle * jparticle = (TParticle *) particles->At(i);
Int_t ip=jparticle->GetPdgCode();
if (KinematicSelection(jparticle,0)&&SelectFlavor(ip)) {
selected=kTRUE; break;
}
-Bool_t AliGenHerwig::SelectFlavor(Int_t pid)
+Bool_t AliGenHerwig::SelectFlavor(Int_t pid) const
{
// Select flavor of particle
// 0: all
// 4: charm and beauty
// 5: beauty
if (fFlavor == 0) return kTRUE;
-
+
Int_t ifl=TMath::Abs(pid/100);
if (ifl > 10) ifl/=10;
return (fFlavor == ifl);
}
-Bool_t AliGenHerwig::Stable(TParticle* particle)
+Bool_t AliGenHerwig::Stable(const TParticle* particle) const
{
// Return true for a stable particle
//
Int_t kf = TMath::Abs(particle->GetPdgCode());
-
+
if ( (particle->GetFirstDaughter() < 0 ) || (kf == 1000*fFlavor+122))
-
+
{
return kTRUE;
} else {
fHerwig->Hwefin();
}
-
-AliGenHerwig& AliGenHerwig::operator=(const AliGenHerwig& rhs)
+void AliGenHerwig::FinishRunJimmy()
{
-// Assignment operator
- return *this;
+ fHerwig->Hwefin();
+ fHerwig->Jmefin();
+
}
-extern "C" {
- Double_t hwr_() {return sRandom->Rndm();}
+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