//*-- 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 "TPGON.h"
#include "TRandom.h"
#include "TTree.h"
#include "TGeometry.h"
-
+#include "TParticle.h"
// --- Standard library ---
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
-#include <strstream.h>
-#include <iostream.h>
+#include <Rstrstream.h>
+#include <Riostream.h>
#include <math.h>
+
// --- AliRoot header files ---
#include "AliEMCALv1.h"
#include "AliEMCALGeometry.h"
#include "AliConst.h"
#include "AliRun.h"
-#include "AliMC.h"
ClassImp(AliEMCALv1)
//______________________________________________________________________
AliEMCALv1::AliEMCALv1():AliEMCALv0(){
// ctor
+
}
+
//______________________________________________________________________
AliEMCALv1::AliEMCALv1(const char *name, const char *title):
AliEMCALv0(name,title){
gAlice->AddHitList(fHits);
fNhits = 0;
- fSamplingFraction = 12.9 ;
- fLayerToPreshowerRatio = 5.0/6.0;
- fIshunt = 1; // All hits are associated with primary particles
+ fIshunt = 2; // All hits are associated with particles entering the calorimeter
}
+
//______________________________________________________________________
AliEMCALv1::~AliEMCALv1(){
// dtor
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 single segment
- // originating from the same enterring particle
+ // An EMCAL hit is the sum of all hits in a tower section (PRE, ECAL, HCAL)
+ // originating from the same entering particle
Int_t hitCounter;
AliEMCALHit *newHit;
curHit = (AliEMCALHit*) (*fHits)[hitCounter];
// We add hits with the same tracknumber, while GEANT treats
// primaries succesively
- if(curHit->GetPrimary() != primary) break;
+ if(curHit->GetPrimary() != primary)
+ break;
if( *curHit == *newHit ) {
*curHit = *curHit + *newHit;
deja = kTRUE;
}
//______________________________________________________________________
void AliEMCALv1::StepManager(void){
- // Accumulates hits as long as the track stays in a single
- // crystal or PPSD gas Cell
- Int_t id[2]; // (layer, phi, Eta) indices
- Int_t absid;
- // position wrt MRS and energy deposited
- Float_t xyze[4]={0.,0.,0.,0.};
- 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->CurrentTrack();
- Int_t primary = 0;
- static Int_t iparent = 0;
- static Float_t ienergy = 0;
- Int_t copy = 0;
-
-
- if(gMC->IsTrackEntering() && (strcmp(gMC->CurrentVolName(),"XALU") == 0)) // This Particle in enterring the Calorimeter
- {
- iparent = tracknumber;
- gMC->TrackMomentum(mom);
- ienergy = mom[3];
-}
- if(gMC->CurrentVolID(copy) == gMC->VolId("XPHI") ) { // We are in a Scintillator Layer
-
- gMC->CurrentVolOffID(1, id[0]); // get the POLY copy number;
- gMC->CurrentVolID(id[1]); // get the phi number inside the layer
- primary = gAlice->GetPrimary(tracknumber);
- gMC->TrackPosition(pos);
- gMC->TrackMomentum(mom);
- xyze[0] = pos[0];
- xyze[1] = pos[1];
- xyze[2] = pos[2];
- xyze[3] = fSamplingFraction*(gMC->Edep()); // Correct for sampling calorimeter
- pmom[0] = mom[0];
- pmom[1] = mom[1];
- pmom[2] = mom[2];
- pmom[3] = mom[3];
+ // Accumulates hits as long as the track stays in a single
+ // crystal or PPSD gas Cell
+
+ Int_t id[2]; // (layer, 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->CurrentTrack();
+ 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->Particle(parent) ;
+ part->SetBit(kKeepBit);
+ parent = part->GetFirstMother() ;
+ }
+ }
+ }
+ if(gMC->CurrentVolID(copy) == gMC->VolId("XPHI") ) { // We are in a Scintillator Layer
- if(xyze[3] > 0.){// Track is inside the crystal and deposits some energy
- absid = (id[0]-1)*(fGeom->GetNPhi()) + id[1];
- if((absid/fGeom->GetNPhi()) < (2*fGeom->GetNZ()))
- {xyze[3] = fLayerToPreshowerRatio*xyze[3] ;} // Preshower readout must be scaled
- AddHit(fIshunt, primary,tracknumber, iparent, ienergy, absid, xyze, pmom);
+ Float_t depositedEnergy ;
+
+ if( (depositedEnergy = gMC->Edep()) > 0.){// Track is inside a scintillator and deposits some energy
+
+ 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<Int_t>((id[0]-1)/(geom->GetNZ())) + 1 ;
+ Int_t absid = tower ;
+ if (layer <= geom->GetNPRLayers() )
+ absid += geom->GetNZ() * geom->GetNPhi() ;
+ else if (layer > geom->GetNECLayers() )
+ absid += 2 * geom->GetNZ() * geom->GetNPhi() ;
+ else {
+ Int_t nlayers = geom->GetNPRLayers()+ geom->GetNECLayers()+ geom->GetNHCLayers() ;
+ if (layer > nlayers)
+ Fatal("StepManager", "Wrong calculation of layer number: layer = %d > %d\n", layer, nlayers) ;
+ }
+
+ Float_t lightYield = depositedEnergy ;
+ ;
+ xyzte[4] = lightYield ;
+
+ primary = gAlice->GetPrimary(tracknumber);
+
+ if (gDebug == 2)
+ Info("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);
} // there is deposited energy
-}
+ }
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff