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It is * * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id$ */ //_________________________________________________________________________ //*-- Implementation version v1 of EMCAL Manager class //*-- An object of this class does not produce digits //*-- It is the one to use if you do want to produce outputs in TREEH //*-- //*-- Author: Sahal Yacoob (LBL /UCT) //*-- : Jennifer Klay (LBL) // This Class not stores information on all particles prior to EMCAL entry - in order to facilitate analysis. // This is done by setting fIShunt =2, and flagging all parents of particles entering the EMCAL. // 15/02/2002 .... Yves Schutz // 1. fSamplingFraction and fLayerToPreshowerRatio have been removed // 2. Timing signal is collected and added to hit // --- ROOT system --- #include #include #include // --- Standard library --- // --- AliRoot header files --- #include "AliEMCALv1.h" #include "AliEMCALHit.h" #include "AliEMCALGeometry.h" #include "AliRun.h" #include "AliMC.h" #include "AliStack.h" ClassImp(AliEMCALv1) //______________________________________________________________________ AliEMCALv1::AliEMCALv1() : AliEMCALv0(), fCurPrimary(-1), fCurParent(-1), fCurTrack(-1), fTimeCut(30e-09) { // default ctor } //______________________________________________________________________ AliEMCALv1::AliEMCALv1(const char *name, const char *title, const Bool_t checkGeoAndRun) : AliEMCALv0(name,title,checkGeoAndRun), fCurPrimary(-1), fCurParent(-1), fCurTrack(-1), fTimeCut(30e-09) { // Standard Creator. fHits= new TClonesArray("AliEMCALHit",1000); // gAlice->GetMCApp()->AddHitList(fHits); // 20-dec-04 - advice of Andreas fNhits = 0; fIshunt = 2; // All hits are associated with particles entering the calorimeter } //______________________________________________________________________ AliEMCALv1::~AliEMCALv1(){ // dtor if ( fHits ) { fHits->Clear(); delete fHits; fHits = 0; } } //______________________________________________________________________ void AliEMCALv1::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy, Int_t id, Float_t * hits,Float_t * p){ // Add a hit to the hit list. // An EMCAL hit is the sum of all hits in a tower section // originating from the same entering particle Int_t hitCounter=0; AliEMCALHit *newHit=0; AliEMCALHit *curHit=0; Bool_t deja = kFALSE; newHit = new AliEMCALHit(shunt, primary, tracknumber, iparent, ienergy, id, hits, p); for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) { curHit = (AliEMCALHit*) (*fHits)[hitCounter]; // We add hits with the same tracknumber, while GEANT treats // primaries succesively if(curHit->GetPrimary() != primary) break; if( *curHit == *newHit ) { *curHit = *curHit + *newHit; deja = kTRUE; } // end if } // end for hitCounter if ( !deja ) { new((*fHits)[fNhits]) AliEMCALHit(*newHit); fNhits++; } // end if delete newHit; } //______________________________________________________________________ void AliEMCALv1::StepManager(void){ // Accumulates hits as long as the track stays in a tower Int_t id[2]={0,0}; // (phi, Eta) indices // position wrt MRS and energy deposited Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited Float_t pmom[4]={0.,0.,0.,0.}; TLorentzVector pos; // Lorentz vector of the track current position. TLorentzVector mom; // Lorentz vector of the track current momentum. Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber(); static Float_t ienergy = 0; Int_t copy = 0; AliEMCALGeometry * geom = GetGeometry() ; TParticle *part=0; Int_t parent=-1; static Int_t idXPHI = gMC->VolId("XPHI"); if(gMC->CurrentVolID(copy) == idXPHI ) { // We are in a Scintillator Layer Float_t depositedEnergy ; if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy if (fCurPrimary==-1) fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber); if (fCurParent==-1 || tracknumber != fCurTrack) { // Check parentage //Int_t parent=tracknumber; parent=tracknumber; if (fCurParent != -1) { while (parent != fCurParent && parent != -1) { //TParticle *part=gAlice->GetMCApp()->Particle(parent); part=gAlice->GetMCApp()->Particle(parent); parent=part->GetFirstMother(); } } if (fCurParent==-1 || parent==-1) { //Int_t parent=tracknumber; //TParticle *part=gAlice->GetMCApp()->Particle(parent); parent=tracknumber; part=gAlice->GetMCApp()->Particle(parent); while (parent != -1 && geom->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) { parent=part->GetFirstMother(); if (parent!=-1) part=gAlice->GetMCApp()->Particle(parent); } fCurParent=parent; if (fCurParent==-1) Error("StepManager","Cannot find parent"); else { //TParticle *part=gAlice->GetMCApp()->Particle(fCurParent); part=gAlice->GetMCApp()->Particle(fCurParent); ienergy = part->Energy(); } while (parent != -1) { part=gAlice->GetMCApp()->Particle(parent); part->SetBit(kKeepBit); parent=part->GetFirstMother(); } } fCurTrack=tracknumber; } gMC->TrackPosition(pos); xyzte[0] = pos[0]; xyzte[1] = pos[1]; xyzte[2] = pos[2]; xyzte[3] = gMC->TrackTime() ; gMC->TrackMomentum(mom); pmom[0] = mom[0]; pmom[1] = mom[1]; pmom[2] = mom[2]; pmom[3] = mom[3]; gMC->CurrentVolOffID(1, id[0]); // get the POLY copy number; gMC->CurrentVolID(id[1]); // get the phi number inside the layer Int_t tower = (id[0]-1) % geom->GetNZ() + 1 + (id[1] - 1) * geom->GetNZ() ; Int_t layer = static_cast((id[0]-1)/(geom->GetNZ())) + 1 ; Int_t absid = tower; Int_t nlayers = geom->GetNECLayers(); if ((layer > nlayers)||(layer<1)) Fatal("StepManager", "Wrong calculation of layer number: layer = %d > %d\n", layer, nlayers) ; Float_t lightYield = depositedEnergy ; // Apply Birk's law (copied from G3BIRK) if (gMC->TrackCharge()!=0) { // Check Float_t birkC1Mod = 0; if (fBirkC0==1){ // Apply correction for higher charge states if (TMath::Abs(gMC->TrackCharge())>=2) birkC1Mod=fBirkC1*7.2/12.6; else birkC1Mod=fBirkC1; } Float_t dedxcm=0.; if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep(); else dedxcm=0; lightYield=lightYield/(1.+birkC1Mod*dedxcm+fBirkC2*dedxcm*dedxcm); } // use sampling fraction to get original energy --HG xyzte[4] = lightYield * geom->GetSampling(); if (gDebug == 2) printf("StepManager: id0 = %d, id1 = %d, absid = %d tower = %d layer = %d energy = %f\n", id[0], id[1], absid, tower, layer, xyzte[4]) ; AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xyzte, pmom); } // there is deposited energy } } //___________________________________________________________ void AliEMCALv1::RemapTrackHitIDs(Int_t *map) { // remap track index numbers for primary and parent indices // (Called by AliStack::PurifyKine) if (Hits()==0) return; TIter hitIter(Hits()); Int_t iHit=0; while (AliEMCALHit *hit=dynamic_cast(hitIter()) ) { if (map[hit->GetIparent()]==-99) cout << "Remapping, found -99 for parent id " << hit->GetIparent() << ", " << map[hit->GetIparent()] << ", iHit " << iHit << endl; hit->SetIparent(map[hit->GetIparent()]); if (map[hit->GetPrimary()]==-99) cout << "Remapping, found -99 for primary id " << hit->GetPrimary() << ", " << map[hit->GetPrimary()] << ", iHit " << iHit << endl; hit->SetPrimary(map[hit->GetPrimary()]); iHit++; } } //___________________________________________________________ void AliEMCALv1::FinishPrimary() { // finish primary fCurPrimary=-1; fCurParent=-1; fCurTrack=-1; }