AliGenerator* Hijing()
{
AliGenHijing *gener = new AliGenHijing(-1);
// centre of mass energy
gener->SetEnergyCMS(2760.);
gener->SetImpactParameterRange(bMin, bMax);
// reference frame
gener->SetReferenceFrame("CMS");
// projectile
gener->SetProjectile("A", 208, 82);
gener->SetTarget ("A", 208, 82);
// tell hijing to keep the full parent child chain
gener->KeepFullEvent();
// enable jet quenching
gener->SetJetQuenching(1);
// enable shadowing
gener->SetShadowing(1);
// neutral pion and heavy particle decays switched off
gener->SetDecaysOff(1);
// Don't track spectators
gener->SetSpectators(0);
// kinematic selection
gener->SetSelectAll(0);
return gener;
}
void createGlauberTree(Int_t nEvents,
const char *outFileName)
{
AliPDG::AddParticlesToPdgDataBase();
TDatabasePDG::Instance();
// Run loader
TFolder *folder = new TFolder("myfolder","myfolder");
AliRunLoader* rl = new AliRunLoader(folder);
rl->MakeHeader();
rl->MakeStack();
AliStack* stack = rl->Stack();
//AliHeader* rheader = rl->GetHeader();
AliGenHijing *genHi = new AliGenHijing(-1);
genHi->SetStack(stack);
genHi->SetEnergyCMS(2760);
genHi->SetReferenceFrame("CMS");
genHi->SetProjectile("A", 208, 82);
genHi->SetTarget ("A", 208, 82);
genHi->SetPtHardMin (2.3);
genHi->SetImpactParameterRange(0.,30);
genHi->SetJetQuenching(0); // enable jet quenching
genHi->SetShadowing(1); // enable shadowing
genHi->SetDecaysOff(1); // neutral pion and heavy particle decays switched off
genHi->Init();
MyHeader *myheader = new MyHeader;
MyResponse *myresp = new MyResponse;
TFile *outFile = TFile::Open(outFileName, "RECREATE");
outFile->SetCompressionLevel(5);
TDirectory::TContext context(outFile);
TTree *tree = new TTree("glaubertree", "Glauber tree");
tree->Branch("header",&myheader, 32*1024, 99);
tree->Branch("response",&myresp, 32*1024, 99);
TNtuple *ntuple = new TNtuple("gnt", "Glauber ntuple", "npart:ncoll:b");
Double_t etas[] = {-10,-5,-4,-3,-2,-1,0,1,2,3,4,5,10};
TH1D *hNEta = new TH1D("hNeta","",12,etas);
TH1D *hEtEta = new TH1D("hEteta","",12,etas);
// create events and fill them
for (Int_t iEvent = 0; iEvent < nEvents; ++iEvent) {
cout << "Event " << iEvent+1 << "/" << nEvents << endl;;
stack->Reset();
hNEta->Reset();
hEtEta->Reset();
genHi->Generate();
AliStack *s = genHi->GetStack();
const TObjArray *parts = s->Particles();
Int_t nents = parts->GetEntries();
for (Int_t i = 0; i<nents; ++i) {
TParticle *p = (TParticle*)parts->At(i);
//p->Print();
TParticlePDG *pdg = p->GetPDG(1);
Int_t c = (Int_t)(TMath::Abs(pdg->Charge()));
if (c!=0) {
hNEta->Fill(p->Eta());
hEtEta->Fill(p->Eta(),p->Pt());
}
}
AliGenHijingEventHeader *h = (AliGenHijingEventHeader*)genHi->CollisionGeometry();
myheader->fNATT = nents;
myheader->fEATT = h->TotalEnergy();
myheader->fJATT = h->HardScatters();
myheader->fNT = h->TargetParticipants();
myheader->fNP = h->ProjectileParticipants();
myheader->fN00 = h->NwNw();
myheader->fN01 = h->NwN();
myheader->fN10 = h->NNw();
myheader->fN11 = h->NN();
myheader->fBB = h->ImpactParameter();
myheader->fRP = h->ReactionPlaneAngle();
myheader->fPSn = h->ProjSpectatorsn();
myheader->fPSp = h->ProjSpectatorsp();
myheader->fTSn = h->TargSpectatorsn();
myheader->fTSp = h->TargSpectatorsn();
myresp->fEtch0p = hEtEta->GetBinContent(hEtEta->FindBin(0.5));
myresp->fEtch1p = hEtEta->GetBinContent(hEtEta->FindBin(1.5));
myresp->fEtch2p = hEtEta->GetBinContent(hEtEta->FindBin(2.5));
myresp->fEtch3p = hEtEta->GetBinContent(hEtEta->FindBin(3.5));
myresp->fEtch4p = hEtEta->GetBinContent(hEtEta->FindBin(4.5));
myresp->fEtch5p = hEtEta->GetBinContent(hEtEta->FindBin(5.5));
myresp->fEtchrp = hEtEta->GetBinContent(hEtEta->FindBin(10.5));
myresp->fEtch0n = hEtEta->GetBinContent(hEtEta->FindBin(-0.5));
myresp->fEtch1n = hEtEta->GetBinContent(hEtEta->FindBin(-1.5));
myresp->fEtch2n = hEtEta->GetBinContent(hEtEta->FindBin(-2.5));
myresp->fEtch3n = hEtEta->GetBinContent(hEtEta->FindBin(-3.5));
myresp->fEtch4n = hEtEta->GetBinContent(hEtEta->FindBin(-4.5));
myresp->fEtch5n = hEtEta->GetBinContent(hEtEta->FindBin(-5.5));
myresp->fEtchrn = hEtEta->GetBinContent(hEtEta->FindBin(-10.5));
myresp->fNch0p = hNEta->GetBinContent(hNEta->FindBin(0.5));
myresp->fNch1p = hNEta->GetBinContent(hNEta->FindBin(1.5));
myresp->fNch2p = hNEta->GetBinContent(hNEta->FindBin(2.5));
myresp->fNch3p = hNEta->GetBinContent(hNEta->FindBin(3.5));
myresp->fNch4p = hNEta->GetBinContent(hNEta->FindBin(4.5));
myresp->fNch5p = hNEta->GetBinContent(hNEta->FindBin(5.5));
myresp->fNchrp = hNEta->GetBinContent(hNEta->FindBin(10.5));
myresp->fNch0n = hNEta->GetBinContent(hNEta->FindBin(-0.5));
myresp->fNch1n = hNEta->GetBinContent(hNEta->FindBin(-1.5));
myresp->fNch2n = hNEta->GetBinContent(hNEta->FindBin(-2.5));
myresp->fNch3n = hNEta->GetBinContent(hNEta->FindBin(-3.5));
myresp->fNch4n = hNEta->GetBinContent(hNEta->FindBin(-4.5));
myresp->fNch5n = hNEta->GetBinContent(hNEta->FindBin(-5.5));
myresp->fNchrn = hNEta->GetBinContent(hNEta->FindBin(-10.5));
tree->Fill();
if (ntuple) {
Int_t np = h->TargetParticipants() + h->ProjectileParticipants();
Int_t nc = h->NwNw() + h->NwN() + h->NNw() + h->NN();
Double_t b = h->ImpactParameter();
ntuple->Fill(np,nc,b);
}
} // end of event loop
tree->Write();
ntuple->Write();
outFile->Close();
}
void Config()
{
// ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
// Theta range given through pseudorapidity limits 22/6/2001
// Set Random Number seed
//gRandom->SetSeed(123456); // Set 0 to use the current time
AliLog::Message(AliLog::kInfo, Form("Seed for random number generation = %d",gRandom->GetSeed()), "Config.C", "Config.C", "Config()","Config.C", __LINE__);
// Get settings from environment variables
ProcessEnvironmentVars();
// Load Pythia libraries
LoadPythia();
// Libraries required by geant321
#if defined(__CINT__)
gSystem->Load("libgeant321");
#endif
new TGeant3TGeo("C++ Interface to Geant3");
// Output every 100 tracks
((TGeant3*)gMC)->SetSWIT(4,100);
AliRunLoader* rl=0x0;
AliLog::Message(AliLog::kInfo, "Creating Run Loader", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);
rl = AliRunLoader::Open("galice.root",
AliConfig::GetDefaultEventFolderName(),
"recreate");
if (rl == 0x0)
{
gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
return;
}
rl->SetCompressionLevel(2);
rl->SetNumberOfEventsPerFile(2);
gAlice->SetRunLoader(rl);
// gAlice->SetGeometryFromFile("geometry.root");
// Uncomment if you want to load geometry from OCDB! >>>>
/*
if(!AliCDBManager::Instance()->IsDefaultStorageSet()){
cout << "#####################################################" << endl;
cout << "# #" << endl;
cout << "# WARNING: CDB DEFAULT STORAGE NOT SET !!! #" << endl;
cout << "# SETTING IT TO local://$ALICE_ROOT !!! #" << endl;
cout << "# #" << endl;
cout << "#####################################################" << endl;
AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT");
}
if(AliCDBManager::Instance()->GetRun() < 0){
cout << "#####################################################" << endl;
cout << "# #" << endl;
cout << "# WARNING: RUN NUMBER NOT SET !!! #" << endl;
cout << "# SETTING IT TO 0 !!! #" << endl;
cout << "# #" << endl;
cout << "#####################################################" << endl;
AliCDBManager::Instance()->SetRun(0);
}
gAlice->SetGeometryFromCDB();
*/
// Uncomment if you want to load geometry from OCDB! <<<<
// Set the trigger configuration
gAlice->SetTriggerDescriptor(TrigConfName[trig]);
cout<<"Trigger configuration is set to "<<TrigConfName[trig]<<endl;
//
// Set External decayer
TVirtualMCDecayer *decayer = new AliDecayerPythia();
decayer->SetForceDecay(kAll);
decayer->Init();
gMC->SetExternalDecayer(decayer);
//=======================================================================
// ************* STEERING parameters FOR ALICE SIMULATION **************
// --- Specify event type to be tracked through the ALICE setup
// --- All positions are in cm, angles in degrees, and P and E in GeV
gMC->SetProcess("DCAY",1);
gMC->SetProcess("PAIR",1);
gMC->SetProcess("COMP",1);
gMC->SetProcess("PHOT",1);
gMC->SetProcess("PFIS",0);
gMC->SetProcess("DRAY",0);
gMC->SetProcess("ANNI",1);
gMC->SetProcess("BREM",1);
gMC->SetProcess("MUNU",1);
gMC->SetProcess("CKOV",1);
gMC->SetProcess("HADR",1);
gMC->SetProcess("LOSS",2);
gMC->SetProcess("MULS",1);
gMC->SetProcess("RAYL",1);
Float_t cut = 1.e-3; // 1MeV cut by default
Float_t tofmax = 1.e10;
gMC->SetCut("CUTGAM", cut);
gMC->SetCut("CUTELE", cut);
gMC->SetCut("CUTNEU", cut);
gMC->SetCut("CUTHAD", cut);
gMC->SetCut("CUTMUO", cut);
gMC->SetCut("BCUTE", cut);
gMC->SetCut("BCUTM", cut);
gMC->SetCut("DCUTE", cut);
gMC->SetCut("DCUTM", cut);
gMC->SetCut("PPCUTM", cut);
gMC->SetCut("TOFMAX", tofmax);
AliGenHijing *gener = new AliGenHijing(-1);
// centre of mass energy
gener->SetEnergyCMS(5500);
// reference frame
gener->SetReferenceFrame("CMS ");
// projectile
gener->SetProjectile("A ", 208, 82);
gener->SetTarget ("A ", 208, 82);
// impact parameter range
gener->SetImpactParameterRange(bMin, bMax); // bMin = 0 - bMax = 3
// evaluate cross section before run
gener->SetEvaluate(0);
// tell hijing to keep the full parent child chain
gener->KeepFullEvent();
// enable jet quenching
gener->SetJetQuenching(quench); // 1
// enable shadowing
gener->SetShadowing(shad); // 1
// neutral pion and heavy particle decays switched off
gener->SetDecaysOff(1);
// Don't track spectators
gener->SetSpectators(0);
// trigger
// gener->SetTrigger(0);
// kinematic selection
gener->SetSelectAll(0);
// momentum range
gener->SetMomentumRange(0,999);
// No restriction on phi, theta
Float_t thmin = EtaToTheta(etaMax); // Theta min <---> eta max 2.
Float_t thmax = EtaToTheta(etaMin); // Theta max <---> eta min -2.
gener->SetPhiRange(phiMin, phiMax); // 0 - 360
//PH gener->SetThetaRange(thmin,thmax);
// PRIMARY VERTEX
gener->SetOrigin(0, 0, 0); //vertex position
// gener->SetSigma(0, 0, 5.3); //Sigma in (X,Y,Z) (cm) on IP position
// gener->SetCutVertexZ(3.); // Truncate at 3 sigma
// gener->SetVertexSmear(kPerEvent);
// Size of the interaction diamond
// Longitudinal
Float_t sigmaz = 7.55 / TMath::Sqrt(2.); // [cm]
// Transverse
Float_t betast = 10; // beta* [m]
Float_t eps = 3.75e-6; // emittance [m]
// Float_t gamma = 7000. / 0.938272; // relativistic gamma [1]
Float_t gamma = 2750. / 0.938272; // relativistic gamma [1]
Float_t sigmaxy = TMath::Sqrt(eps * betast / gamma) / TMath::Sqrt(2.) * 100.; // [cm]
printf("\n \n Diamond size x-y: %10.3e z: %10.3e\n \n", sigmaxy, sigmaz);
gener->SetSigma(sigmaxy, sigmaxy, sigmaz); // Sigma in (X,Y,Z) (cm) on IP position
gener->SetCutVertexZ(3.); // Truncate at 3 sigma
gener->SetVertexSmear(kPerEvent);
//
// Activate this line if you want the vertex smearing to happen
// track by track
//
//gener->SetVertexSmear(perTrack);
gener->Init();
// Field (L3 0.5 T)
AliMagWrapCheb* field = 0x0;
if (mag == kNoField) {
comment = comment.Append(" | L3 field 0.0 T");
field = new AliMagWrapCheb("Maps","Maps", 2, 0., 10., AliMagWrapCheb::k2kG);
} else if (mag == k5kG) {
comment = comment.Append(" | L3 field 0.5 T");
//field = new AliMagWrapCheb("Maps","Maps", 2, 1., 10., AliMagWrapCheb::k5kG);
AliMagWrapCheb * field = new AliMagWrapCheb("Maps","Maps", 2, 1., 10., AliMagWrapCheb::k5kG,kTRUE,"$(ALICE_ROOT)/data/maps/mfchebKGI_sym.root");
}
rl->CdGAFile();
gAlice->SetField(field);
Int_t iABSO = 1;
Int_t iDIPO = 1;
Int_t iFMD = 1;
Int_t iFRAME = 1;
Int_t iHALL = 1;
Int_t iITS = 1;
Int_t iMAG = 1;
Int_t iMUON = 1;
Int_t iPHOS = 1;
Int_t iPIPE = 1;
Int_t iPMD = 1;
Int_t iHMPID = 1;
Int_t iSHIL = 1;
Int_t iT0 = 1;
Int_t iTOF = 1;
Int_t iTPC = 1;
Int_t iTRD = 1;
Int_t iZDC = 1;
Int_t iEMCAL = 1;
Int_t iACORDE = 1;
Int_t iVZERO = 1;
rl->CdGAFile();
//=================== Alice BODY parameters =============================
AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
if (iMAG)
{
//=================== MAG parameters ============================
// --- Start with Magnet since detector layouts may be depending ---
// --- on the selected Magnet dimensions ---
AliMAG *MAG = new AliMAG("MAG", "Magnet");
}
if (iABSO)
{
//=================== ABSO parameters ============================
AliABSO *ABSO = new AliABSOv3("ABSO", "Muon Absorber");
}
if (iDIPO)
{
//=================== DIPO parameters ============================
AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
}
if (iHALL)
{
//=================== HALL parameters ============================
AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
}
if (iFRAME)
{
//=================== FRAME parameters ============================
AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
FRAME->SetHoles(1);
}
if (iSHIL)
{
//=================== SHIL parameters ============================
AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
}
if (iPIPE)
{
//=================== PIPE parameters ============================
AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
}
if (iITS)
{
//=================== ITS parameters ============================
AliITS *ITS = new AliITSv11Hybrid("ITS","ITS v11Hybrid");
}
if (iTPC)
{
//============================ TPC parameters ===================
AliTPC *TPC = new AliTPCv2("TPC", "Default");
}
if (iTOF) {
//=================== TOF parameters ============================
AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
}
if (iHMPID)
{
//=================== HMPID parameters ===========================
AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");
}
if (iZDC)
{
//=================== ZDC parameters ============================
AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
}
if (iTRD)
{
//=================== TRD parameters ============================
AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
}
if (iFMD)
{
//=================== FMD parameters ============================
AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
}
if (iMUON)
{
//=================== MUON parameters ===========================
// New MUONv1 version (geometry defined via builders)
AliMUON *MUON = new AliMUONv1("MUON", "default");
}
//=================== PHOS parameters ===========================
if (iPHOS)
{
AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
}
if (iPMD)
{
//=================== PMD parameters ============================
AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
}
if (iT0)
{
//=================== T0 parameters ============================
AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
}
if (iEMCAL)
{
//=================== EMCAL parameters ============================
AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE");
}
if (iACORDE)
{
//=================== ACORDE parameters ============================
AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
}
if (iVZERO)
{
//=================== VZERO parameters ============================
AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
}
AliLog::Message(AliLog::kInfo, "End of Config", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);
}