#include "AliPHOSRecParticle.h"
#include "AliPHOSGetter.h"
#include "AliPHOSGeometry.h"
+#include "AliLog.h"
//____________________________________________________________________________
AliPHOSRecParticle::AliPHOSRecParticle(): fPHOSTrackSegment(0) , fDebug( kFALSE )
{
// ctor
- const Int_t nSPECIES = AliESDtrack::kSPECIESN;
+ const Int_t nSPECIES = AliPID::kSPECIESN;
for(Int_t i = 0; i<nSPECIES ; i++)
fPID[i]=0.;
}
fPolarTheta = rp.fPolarTheta;
fPolarPhi = rp.fPolarPhi;
fParticlePDG = rp.fParticlePDG;
- const Int_t nSPECIES = AliESDtrack::kSPECIESN;
+ const Int_t nSPECIES = AliPID::kSPECIESN;
for(Int_t i = 0; i<nSPECIES ; i++)
fPID[i]=rp.fPID[i];
}
//____________________________________________________________________________
-const Int_t AliPHOSRecParticle::GetNPrimaries() const
+Int_t AliPHOSRecParticle::GetNPrimaries() const
{
return -1;
}
//____________________________________________________________________________
-const Int_t AliPHOSRecParticle::GetNPrimariesToRecParticles() const
+Int_t AliPHOSRecParticle::GetNPrimariesToRecParticles() const
{
// Get the number of primaries at the origine of the RecParticle
Int_t rv = 0 ;
return 0 ;
}
+//____________________________________________________________________________
+Int_t AliPHOSRecParticle::GetPrimaryIndex() const
+{
+ // Get the primary track index in TreeK which deposits the most energy
+ // in Digits which forms EmcRecPoint, which produces TrackSegment,
+ // which the RecParticle is created from
+
+
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+ if (!gime)
+ AliError(Form("Getter not yet instantiated")) ;
+ //PH gime->Event(gime->EventNumber(), "DRTX") ;
+ gime->Event(gime->EventNumber(), "DRT") ;
+
+ // Get TrackSegment corresponding to this RecParticle
+ AliPHOSTrackSegment *ts = gime->TrackSegment(fPHOSTrackSegment);
+
+ // Get EmcRecPoint corresponding to this TrackSegment
+ Int_t emcRecPointIndex = ts->GetEmcIndex();
+
+ AliPHOSEmcRecPoint *emcRecPoint = gime->EmcRecPoint(emcRecPointIndex);
+
+ // Get the list of digits forming this EmcRecParticle
+ Int_t nDigits = emcRecPoint->GetDigitsMultiplicity();
+ Int_t *digitList = emcRecPoint->GetDigitsList();
+
+ // Find the digit with maximum amplitude
+ AliPHOSDigit *digit = 0;
+ Int_t maxAmp = 0;
+ Int_t bestDigitIndex = -1;
+ for (Int_t iDigit=0; iDigit<nDigits; iDigit++) {
+ digit = gime->Digit(digitList[iDigit]);
+ if (digit->GetAmp() > maxAmp) {
+ maxAmp = digit->GetAmp();
+ bestDigitIndex = iDigit;
+ }
+ }
+ digit = gime->Digit(digitList[bestDigitIndex]);
+
+ // Get the list of primary tracks producing this digit
+ // and find which track has more track energy.
+ //Int_t nPrimary = digit->GetNprimary();
+ //TParticle *track = 0;
+ //Double_t energyEM = 0;
+ //Double_t energyHadron = 0;
+ //Int_t trackEM = -1;
+ //Int_t trackHadron = -1;
+ //for (Int_t iPrim=0; iPrim<nPrimary; iPrim++) {
+ // Int_t iPrimary = digit->GetPrimary(iPrim+1);
+ // if (iPrimary == -1 || TMath::Abs(iPrimary)>10000000)
+ // continue ; //PH 10000000 is the shift of the track
+ // //PH indexes in the underlying event
+ // track = gime->Primary(iPrimary);
+ // Int_t pdgCode = track->GetPdgCode();
+ // Double_t energy = track->Energy();
+ // if (pdgCode==22 || TMath::Abs(pdgCode)==11) {
+ // if (energy > energyEM) {
+ // energyEM = energy;
+ // trackEM = iPrimary;
+ // }
+ // }
+ // else {
+ // if (energy > energyHadron) {
+ // energyHadron = energy;
+ // trackHadron = iPrimary;
+ // }
+ // }
+ //}
+ // Preferences are given to electromagnetic tracks
+ //if (trackEM != -1) return trackEM; // track is gamma or e+-
+ //if (trackHadron != -1) return trackHadron; // track is hadron
+ //return -12345; // no track found :(
+
+
+ // Get the list of hits producing this digit,
+ // find which hit has deposited more energy
+ // and find the primary track.
+
+ AliPHOSHit *hit = 0;
+ TClonesArray *hits = gime->Hits();
+ Double_t maxedep = 0;
+ Int_t maxtrack = -1;
+ Int_t nHits = hits ->GetEntries();
+ Int_t id = digit->GetId();
+
+ for (Int_t iHit=0; iHit<nHits; iHit++) {
+ hit = gime->Hit(iHit);
+ if(hit->GetId() == id){
+ Double_t edep = hit->GetEnergy();
+ Int_t track = hit->GetPrimary();
+ if(edep > maxedep){
+ maxedep = edep;
+ maxtrack = track;
+ }
+ }
+ }
+
+ if (maxtrack != -1) return maxtrack; // track is hadron
+ return -12345; // no track found :(
+}
+
//____________________________________________________________________________
const TParticle * AliPHOSRecParticle::GetPrimary(Int_t index) const
{