#include "AliGenHijing.h"
#include "AliGenHijingEventHeader.h"
-#include "AliRun.h"
#include "AliHijingRndm.h"
+#include "AliLog.h"
+#include "AliRun.h"
ClassImp(AliGenHijing)
fKeep(0),
fQuench(1),
fShadowing(1),
- fDecaysOff(1),
+ fDecaysOff(3),
fTrigger(0),
fEvaluate(0),
fSelectAll(0),
fFlavor(0),
- fEnergyCMS(5500.),
fKineBias(0.),
fTrials(0),
fXsection(0.),
fHijing(0),
- fPtHardMin(0.),
- fPtHardMax(1.e4),
+ fPtHardMin(2.0),
+ fPtHardMax(-1),
fSpectators(1),
fDsigmaDb(0),
fDnDb(0),
fTargetSpecp(0),
fLHC(kFALSE),
fRandomPz(kFALSE),
- fNoHeavyQuarks(kFALSE)
+ fNoHeavyQuarks(kFALSE),
+ fHeader(AliGenHijingEventHeader("Hijing")),
+ fSigmaNN(-1),
+ fNoElas(0)
{
-// Constructor
- AliHijingRndm::SetHijingRandom(GetRandom());
+ // Constructor
+ fEnergyCMS = 5500.;
+ AliHijingRndm::SetHijingRandom(GetRandom());
}
AliGenHijing::AliGenHijing(Int_t npart)
fKeep(0),
fQuench(1),
fShadowing(1),
- fDecaysOff(1),
+ fDecaysOff(3),
fTrigger(0),
fEvaluate(0),
fSelectAll(0),
fFlavor(0),
- fEnergyCMS(5500.),
fKineBias(0.),
fTrials(0),
fXsection(0.),
fHijing(0),
- fPtHardMin(0.),
- fPtHardMax(1.e4),
+ fPtHardMin(2.0),
+ fPtHardMax(-1),
fSpectators(1),
fDsigmaDb(0),
fDnDb(0),
fTargetSpecp(0),
fLHC(kFALSE),
fRandomPz(kFALSE),
- fNoHeavyQuarks(kFALSE)
+ fNoHeavyQuarks(kFALSE),
+ fHeader(AliGenHijingEventHeader("Hijing")),
+ fSigmaNN(-1),
+ fNoElas(0)
{
// Default PbPb collisions at 5. 5 TeV
//
+ fEnergyCMS = 5500.;
fName = "Hijing";
fTitle= "Particle Generator using HIJING";
//
//
// Set random number generator
AliHijingRndm::SetHijingRandom(GetRandom());
+
}
AliGenHijing::~AliGenHijing()
fHijing->SetIHPR2(6, fShadowing);
fHijing->SetIHPR2(12, fDecaysOff);
fHijing->SetIHPR2(21, fKeep);
- fHijing->SetHIPR1(10, fPtMinJet);
+ fHijing->SetHIPR1(8, fPtHardMin);
+ fHijing->SetHIPR1(9, fPtHardMax);
+ fHijing->SetHIPR1(10, fPtMinJet);
+ if (fSigmaNN>0)
+ fHijing->SetHIPR1(31, fSigmaNN/2.);
fHijing->SetHIPR1(50, fSimpleJet);
+ //
+ // Switching off elastic scattering
+ if (fNoElas)
+ fHijing->SetIHPR2(14, 0);
//
// Quenching
//
Float_t polar[3] = {0,0,0};
Float_t origin[3] = {0,0,0};
Float_t origin0[3] = {0,0,0};
+ Float_t time0 = 0.;
Float_t p[3];
Float_t tof;
fTrials = 0;
for (j = 0;j < 3; j++) origin0[j] = fOrigin[j];
+ time0 = fTimeOrigin;
+
if(fVertexSmear == kPerEvent) {
Vertex();
for (j=0; j < 3; j++) origin0[j] = fVertex[j];
+ time0 = fTime;
}
Float_t sign = (fRandomPz && (Rndm() < 0.5))? -1. : 1.;
+
while(1)
{
// Generate one event
Int_t np = fParticles.GetEntriesFast();
- printf("\n **************************************************%d\n",np);
Int_t nc = 0;
if (np == 0 ) continue;
Int_t i;
// Get event vertex
//
- TParticle * iparticle = (TParticle *) fParticles.At(0);
fVertex[0] = origin0[0];
fVertex[1] = origin0[1];
fVertex[2] = origin0[2];
-
+ fTime = time0;
//
// First select parent particles
//
-
+ TParticle * iparticle = 0;
for (i = 0; i < np; i++) {
iparticle = (TParticle *) fParticles.At(i);
//
for (i = 0; i<np; i++) {
- TParticle * iparticle = (TParticle *) fParticles.At(i);
+ iparticle = (TParticle *) fParticles.At(i);
// Is this a final state particle ?
if (!Stable(iparticle)) continue;
} // selected
} // particle loop final state
-//
-// Time of the interactions
- Float_t tInt = 0.;
- if (fPileUpTimeWindow > 0.) tInt = fPileUpTimeWindow * (2. * gRandom->Rndm() - 1.);
-
//
// Write particles to stack
for (i = 0; i<np; i++) {
- TParticle * iparticle = (TParticle *) fParticles.At(i);
+ iparticle = (TParticle *) fParticles.At(i);
Bool_t hasMother = (iparticle->GetFirstMother() >=0);
Bool_t hasDaughter = (iparticle->GetFirstDaughter() >=0);
if (pSelected[i]) {
origin[0] = origin0[0]+iparticle->Vx()/10;
origin[1] = origin0[1]+iparticle->Vy()/10;
origin[2] = origin0[2]+iparticle->Vz()/10;
- tof = kconv * iparticle->T() + sign * origin0[2] / 3.e10;
- if (fPileUpTimeWindow > 0.) tof += tInt;
-
+ tof = time0+kconv * iparticle->T();
+
imo = -1;
TParticle* mother = 0;
if (hasMother) {
delete[] newPos;
delete[] pSelected;
- printf("\n I've put %i particles on the stack \n",nc);
+ AliInfo(Form("\n I've put %i particles on the stack \n",nc));
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);
+ AliInfo(Form("\n Trials: %i %i %i\n",fTrials, fNpart, jev));
break;
}
}
} // event loop
+
MakeHeader();
SetHighWaterMark(nt);
}
printf("\n Projectile Radius (fm): %f \n",fHijing->GetHIPR1(34));
printf("\n Target Radius (fm): %f \n",fHijing->GetHIPR1(35));
+ printf("\n Inelastic and total cross section (mb) %f %f \n",fHijing->GetHINT1(12), fHijing->GetHINT1(13));
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++){
+ b[i] = 0.;
+ si1[i] = 0.;
+ si2[i] = 0.;
+ }
+
for (i = 0; i < kMax; i++)
{
Float_t xb = bMin+i*kdib;
fDnDb = new TGraph(i, b, si2);
}
-Bool_t AliGenHijing::DaughtersSelection(TParticle* iparticle)
+Bool_t AliGenHijing::DaughtersSelection(const TParticle* iparticle)
{
//
// Looks recursively if one of the daughters has been selected
return res;
}
-Bool_t AliGenHijing::Stable(TParticle* particle) const
+Bool_t AliGenHijing::Stable(const TParticle* particle) const
{
// Return true for a stable particle
//
void AliGenHijing::MakeHeader()
{
// Builds the event header, to be called after each event
- AliGenEventHeader* header = new AliGenHijingEventHeader("Hijing");
- ((AliGenHijingEventHeader*) header)->SetNProduced(fNprimaries);
- ((AliGenHijingEventHeader*) header)->SetImpactParameter(fHijing->GetHINT1(19));
- ((AliGenHijingEventHeader*) header)->SetTotalEnergy(fHijing->GetEATT());
- ((AliGenHijingEventHeader*) header)->SetHardScatters(fHijing->GetJATT());
- ((AliGenHijingEventHeader*) header)->SetParticipants(fHijing->GetNP(), fHijing->GetNT());
- ((AliGenHijingEventHeader*) header)->SetCollisions(fHijing->GetN0(),
- fHijing->GetN01(),
- fHijing->GetN10(),
- fHijing->GetN11());
- ((AliGenHijingEventHeader*) header)->SetSpectators(fProjectileSpecn, fProjectileSpecp,
- fTargetSpecn,fTargetSpecp);
- ((AliGenHijingEventHeader*) header)->SetReactionPlaneAngle(fHijing->GetHINT1(20));
-
-
+ fHeader.SetNProduced(fNprimaries);
+ fHeader.SetImpactParameter(fHijing->GetHINT1(19));
+ fHeader.SetTotalEnergy(fHijing->GetEATT());
+ fHeader.SetHardScatters(fHijing->GetJATT());
+ fHeader.SetParticipants(fHijing->GetNP(), fHijing->GetNT());
+ fHeader.SetCollisions(fHijing->GetN0(),
+ fHijing->GetN01(),
+ fHijing->GetN10(),
+ fHijing->GetN11());
+ fHeader.SetSpectators(fProjectileSpecn, fProjectileSpecp,
+ fTargetSpecn,fTargetSpecp);
+ fHeader.SetReactionPlaneAngle(fHijing->GetHINT1(20));
+ fHeader.SetTrueNPart(fHijing->GetNPART());
// 4-momentum vectors of the triggered jets.
//
fHijing->GetHINT1(37),
fHijing->GetHINT1(38),
fHijing->GetHINT1(39));
- ((AliGenHijingEventHeader*) header)->SetJets(jet1, jet2, jet3, jet4);
+ fHeader.SetJets(jet1, jet2, jet3, jet4);
// Bookkeeping for kinematic bias
- ((AliGenHijingEventHeader*) header)->SetTrials(fTrials);
+ fHeader.SetTrials(fTrials);
// Event Vertex
- header->SetPrimaryVertex(fVertex);
- AddHeader(header);
- fCollisionGeometry = (AliGenHijingEventHeader*) header;
+ fHeader.SetPrimaryVertex(fVertex);
+ fHeader.SetInteractionTime(fTime);
+
+ Int_t nsd1 = 0,nsd2 = 0,ndd = 0;
+ Int_t nT = fHijing->GetNT();
+ Int_t nP = fHijing->GetNP();
+ for (Int_t i = 1; i <= nP; ++i) {
+ for (Int_t j = 1; j <= nT; ++j) {
+ Int_t tp = fHijing->GetNFP(i, 5);
+ Int_t tt = fHijing->GetNFT(j, 5);
+ if (tp == 2)
+ nsd1++;
+ if (tt == 2)
+ nsd2++;
+ if (tp == 2 && tt == 2)
+ ndd++;
+ }
+ }
+ fHeader.SetNDiffractive(nsd1, nsd2, ndd);
+ AddHeader(&fHeader);
+ fCollisionGeometry = &fHeader;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff