/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Authors: Svein Lindal, Daniel Lohner *
- * Version 1.0 *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
+ * *
+ * Authors: Svein Lindal, Daniel Lohner *
+ * Version 1.0 *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
**************************************************************************/
////////////////////////////////////////////////
-//---------------------------------------------
+//---------------------------------------------
// Class reconstructing conversion photons from V0s
//---------------------------------------------
////////////////////////////////////////////////
fConversionGammas = new TClonesArray("AliKFConversionPhoton",100);}
}
fConversionGammas->Delete();//Reset the TClonesArray
-
+
}
//________________________________________________________________________
}
if(!fConversionCuts){AliError("No ConversionCuts");return kFALSE;}
-
+
// Event Cuts
if(!fConversionCuts->EventIsSelected(fInputEvent,fMCEvent))return kFALSE;
///Make sure delta aod is filled if standard aod is filled (for synchronization when reading aod with standard aod)
if(fCreateAOD) {
AliAODHandler * aodhandler = dynamic_cast<AliAODHandler*>(AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler());
- if (aodhandler && aodhandler->GetFillAOD()) {
- AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler()->SetFillExtension(kTRUE);
+ if (aodhandler && aodhandler->GetFillAOD()) {
+ AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler()->SetFillExtension(kTRUE);
//PostData(0, fConversionGammas);
-
+
}
}
}
AliESDEvent *fESDEvent=dynamic_cast<AliESDEvent*>(fInputEvent);
AliKFConversionPhoton *fCurrentMotherKFCandidate=NULL;
-
+
if(fESDEvent){
for(Int_t currentV0Index=0;currentV0Index<fESDEvent->GetNumberOfV0s();currentV0Index++){
//checks if on the fly mode is set
if(!fConversionCuts->SelectV0Finder(fCurrentV0->GetOnFlyStatus())){
- fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kOnFly);
- return 0x0;
+ fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kOnFly);
+ return 0x0;
}
// TrackLabels
AliVTrack * negTrack = fConversionCuts->GetTrack(fInputEvent,currentTrackLabels[1]);
if(!negTrack || !posTrack) {
- fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kNoTracks);
- return 0x0;
+ fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kNoTracks);
+ return 0x0;
}
// Track Cuts
if(!fConversionCuts->TracksAreSelected(negTrack, posTrack)){
- fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kTrackCuts);
- return 0x0;
+ fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kTrackCuts);
+ return 0x0;
}
// PID Cuts
- if(!fConversionCuts->dEdxCuts(negTrack) || !fConversionCuts->dEdxCuts(posTrack)) {
- fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kdEdxCuts);
- return 0x0;
- }
+ if(!fConversionCuts->dEdxCuts(negTrack) || !fConversionCuts->dEdxCuts(posTrack)) {
+ fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kdEdxCuts);
+ return 0x0;
+ }
// Reconstruct Photon
// Reconstruct Gamma
if(fUseConstructGamma){
-
fCurrentMotherKF = new AliKFConversionPhoton();
fCurrentMotherKF->ConstructGamma(fCurrentNegativeKFParticle,fCurrentPositiveKFParticle);
}else{
AliStack *fMCStack= fMCEvent->Stack();
- Int_t labeln=TMath::Abs(fConversionCuts->GetTrack(fInputEvent,fCurrentMotherKF->GetTrackLabelPositive())->GetLabel());
- Int_t labelp=TMath::Abs(fConversionCuts->GetTrack(fInputEvent,fCurrentMotherKF->GetTrackLabelNegative())->GetLabel());
+ Int_t labelp=TMath::Abs(fConversionCuts->GetTrack(fInputEvent,fCurrentMotherKF->GetTrackLabelPositive())->GetLabel());
+ Int_t labeln=TMath::Abs(fConversionCuts->GetTrack(fInputEvent,fCurrentMotherKF->GetTrackLabelNegative())->GetLabel());
TParticle *fNegativeMCParticle = fMCStack->Particle(labeln);
TParticle *fPositiveMCParticle = fMCStack->Particle(labelp);
Double_t PsiPair=GetPsiPair(fCurrentV0,fCurrentExternalTrackParamPositive,fCurrentExternalTrackParamNegative);
fCurrentMotherKF->SetPsiPair(PsiPair);
-
+
// Recalculate ConversionPoint
Double_t dca[2]={0,0};
if(fUseOwnXYZCalculation){
Double_t convpos[3]={0,0,0};
if(!GetConversionPoint(fCurrentExternalTrackParamPositive,fCurrentExternalTrackParamNegative,convpos,dca)){
- fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kConvPointFail);
- delete fCurrentMotherKF;
- fCurrentMotherKF=NULL;
- return 0x0;
+ fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kConvPointFail);
+ delete fCurrentMotherKF;
+ fCurrentMotherKF=NULL;
+ return 0x0;
}
fCurrentMotherKF->SetConversionPoint(convpos);
if(fCurrentMotherKF->GetNDF() > 0.)
fCurrentMotherKF->SetChi2perNDF(fCurrentMotherKF->GetChi2()/fCurrentMotherKF->GetNDF()); //->Photon is created before all chi2 relevant changes are performed, set it "by hand"
-
+
+
+ // Set Dilepton Mass (moved down for same eta compared to old)
+ fCurrentMotherKF->SetMass(fCurrentMotherKF->M());
+
// Apply Photon Cuts
if(!fConversionCuts->PhotonCuts(fCurrentMotherKF,fInputEvent)){
return 0x0;
}
- // Set Dilepton Mass (moved down for same eta compared to old)
- fCurrentMotherKF->SetMass(fCurrentMotherKF->M());
-
-
fConversionCuts->FillPhotonCutIndex(AliConversionCuts::kPhotonOut);
return fCurrentMotherKF;
}
Double_t xyz[3] = {0.,0.,0.};
v0->GetXYZ(xyz[0],xyz[1],xyz[2]);
-
+
Double_t mn[3] = {0,0,0};
Double_t mp[3] = {0,0,0};
-
+
v0->GetNPxPyPz(mn[0],mn[1],mn[2]);//reconstructed cartesian momentum components of negative daughter;
- v0->GetPPxPyPz(mp[0],mp[1],mp[2]);//reconstructed cartesian momentum components of positive daughter;
+ v0->GetPPxPyPz(mp[0],mp[1],mp[2]);//reconstructed cartesian momentum components of positive daughter;
Double_t deltat = 1.;
deltat = TMath::ATan(mp[2]/(TMath::Sqrt(mp[0]*mp[0] + mp[1]*mp[1])+1.e-13)) - TMath::ATan(mn[2]/(TMath::Sqrt(mn[0]*mn[0] + mn[1]*mn[1])+1.e-13));//difference of angles of the two daughter tracks with z-axis
- Double_t radiussum = TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]) + 50;//radius to which tracks shall be propagated
-
+ Double_t radiussum = TMath::Sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]) + 50;//radius to which tracks shall be propagated
+
Double_t momPosProp[3] = {0,0,0};
Double_t momNegProp[3] = {0,0,0};
-
+
Double_t psiPair = 4.;
if(nt.PropagateTo(radiussum,magField) == 0) return psiPair; //propagate tracks to the outside -> Better Purity and Efficiency
-
+
if(pt.PropagateTo(radiussum,magField) == 0) return psiPair; //propagate tracks to the outside -> Better Purity and Efficiency
-
+
pt.GetPxPyPz(momPosProp);//Get momentum vectors of tracks after propagation
nt.GetPxPyPz(momNegProp);
// Recalculate Conversion Point
if(!pparam||!nparam)return kFALSE;
-
+
Double_t helixcenterpos[2];
GetHelixCenter(pparam,helixcenterpos);
if(fAODEvent){
- if(fConversionGammas == NULL){
- fConversionGammas = new TClonesArray("AliAODConversionPhoton",100);
- }
+ if(fConversionGammas == NULL){
+ fConversionGammas = new TClonesArray("AliAODConversionPhoton",100);
+ }
fConversionGammas->Delete();//Reset the TClonesArray
//Get Gammas from satellite AOD gamma branch
AliAODConversionPhoton *gamma=0x0;
-
+
TClonesArray *fInputGammas=dynamic_cast<TClonesArray*>(fAODEvent->FindListObject(fDeltaAODBranchName.Data()));
if(!fInputGammas){
- FindDeltaAODBranchName();
- fInputGammas=dynamic_cast<TClonesArray*>(fAODEvent->FindListObject(fDeltaAODBranchName.Data()));}
+ FindDeltaAODBranchName();
+ fInputGammas=dynamic_cast<TClonesArray*>(fAODEvent->FindListObject(fDeltaAODBranchName.Data()));}
if(!fInputGammas){AliError("No Gamma Satellites found");return kFALSE;}
// Apply Selection Cuts to Gammas and create local working copy
if(fInputGammas){
- for(Int_t i=0;i<fInputGammas->GetEntriesFast();i++){
-
gamma=dynamic_cast<AliAODConversionPhoton*>(fInputGammas->At(i));
- if(gamma){
- if(fConversionCuts->PhotonIsSelected(gamma,fInputEvent)){
- new((*fConversionGammas)[fConversionGammas->GetEntriesFast()]) AliAODConversionPhoton(*gamma);}
- }
- }
+ for(Int_t i=0;i<fInputGammas->GetEntriesFast();i++){
+ gamma=dynamic_cast<AliAODConversionPhoton*>(fInputGammas->At(i));
+ if(gamma){
+ if(fConversionCuts->PhotonIsSelected(gamma,fInputEvent)){
+ new((*fConversionGammas)[fConversionGammas->GetEntriesFast()]) AliAODConversionPhoton(*gamma);}
+ }
+ }
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff