// 2. Timing signal is collected and added to hit
// --- ROOT system ---
-#include "TParticle.h"
-#include "TVirtualMC.h"
+#include <TClonesArray.h>
+#include <TParticle.h>
+#include <TVirtualMC.h>
// --- Standard library ---
#include "AliEMCALGeometry.h"
#include "AliRun.h"
#include "AliMC.h"
+#include "AliStack.h"
ClassImp(AliEMCALv1)
//______________________________________________________________________
-AliEMCALv1::AliEMCALv1():AliEMCALv0(){
- // ctor
-
+AliEMCALv1::AliEMCALv1()
+ : AliEMCALv0(),
+ fCurPrimary(-1),
+ fCurParent(-1),
+ fCurTrack(-1),
+ fTimeCut(30e-09)
+{
+ // default ctor
}
//______________________________________________________________________
-AliEMCALv1::AliEMCALv1(const char *name, const char *title):
- AliEMCALv0(name,title){
+AliEMCALv1::AliEMCALv1(const char *name, const char *title)
+ : AliEMCALv0(name,title),
+ fCurPrimary(-1),
+ fCurParent(-1),
+ fCurTrack(-1),
+ fTimeCut(30e-09)
+{
// Standard Creator.
fHits= new TClonesArray("AliEMCALHit",1000);
- gAlice->GetMCApp()->AddHitList(fHits);
+ // 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->Delete();
- delete fHits;
- fHits = 0;
- }
+ // 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;
+ Int_t hitCounter=0;
- AliEMCALHit *newHit;
- AliEMCALHit *curHit;
+ AliEMCALHit *newHit=0;
+ AliEMCALHit *curHit=0;
Bool_t deja = kFALSE;
newHit = new AliEMCALHit(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
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]; // (phi, Eta) indices
+ 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();
- Int_t primary = 0;
- static Int_t iparent = 0;
static Float_t ienergy = 0;
Int_t copy = 0;
AliEMCALGeometry * geom = GetGeometry() ;
- if(gMC->IsTrackEntering() && (strcmp(gMC->CurrentVolName(),"XALU") == 0)){ // This Particle in enterring the Calorimeter
- gMC->TrackPosition(pos) ;
- xyzte[0] = pos[0] ;
- xyzte[1] = pos[1] ;
- xyzte[2] = pos[2] ;
- if ( (xyzte[0]*xyzte[0] + xyzte[1]*xyzte[1])
- < (geom->GetEnvelop(0)+geom->GetGap2Active()+1.5 )*(geom->GetEnvelop(0)+geom->GetGap2Active()+1.5 ) ) {
- iparent = tracknumber;
- gMC->TrackMomentum(mom);
- ienergy = mom[3];
- TParticle * part = 0 ;
- Int_t parent = iparent ;
- while ( parent != -1 ) { // <------------- flags this particle to be kept and
- //all the ancestors of this particle
- part = gAlice->GetMCApp()->Particle(parent) ;
- part->SetBit(kKeepBit);
- parent = part->GetFirstMother() ;
- }
- }
- }
- if(gMC->CurrentVolID(copy) == gMC->VolId("XPHI") ) { // We are in a Scintillator Layer
-
+ 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.){// Track is inside a scintillator and deposits some energy
-
- // use sampling fraction to get original energy --HG
- depositedEnergy = depositedEnergy * geom->GetSampling();
+ 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];
if ((layer > nlayers)||(layer<1))
Fatal("StepManager", "Wrong calculation of layer number: layer = %d > %d\n", layer, nlayers) ;
-
Float_t lightYield = depositedEnergy ;
- xyzte[4] = lightYield ;
-
- primary = gAlice->GetMCApp()->GetPrimary(tracknumber);
+ // 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, primary,tracknumber, iparent, ienergy, absid, xyzte, pmom);
+ 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<AliEMCALHit*>(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;
+}