1 #ifndef ALIDIELECTRONMC_H
2 #define ALIDIELECTRONMC_H
3 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 //#####################################################
8 //# Class AliDielectronMC #
9 //# Cut Class for Jpsi->e+e- analysis #
11 //# by WooJin J. Park, GSI / W.J.Park@gsi.de #
13 //#####################################################
26 class AliAODMCParticle;
28 #include "AliDielectronPair.h"
30 class AliDielectronMC : public TObject{
33 enum AnalysisType {kUNSET=0, kESD, kAOD};
35 AliDielectronMC(AnalysisType type=kUNSET);
36 virtual ~AliDielectronMC();
38 void SetHasMC(Bool_t hasMC) { fHasMC=hasMC; }
39 Bool_t HasMC() const { return fHasMC; }
41 static AliDielectronMC* Instance();
43 void Initialize(); // initialization
44 Int_t GetNMCTracks(); // return number of generated tracks
45 Int_t GetNMCTracksFromStack(); // return number of generated tracks from stack
46 Int_t GetNPrimary(); // return number of primary tracks
47 Int_t GetNPrimaryFromStack(); // return number of primary tracks from stack
48 Int_t GetMCPID(const AliESDtrack* _track); // return MC PID
49 Int_t GetMCPID(const AliAODTrack* _track); // return MC PID for AODtrack
50 Int_t GetMCPIDFromStack(const AliESDtrack* _track); // return MC PID
51 Int_t GetMotherPDG(const AliESDtrack* _track); // return mother PID from the MC stack
52 Int_t GetMotherPDG(const AliAODTrack* _track); // return mother PID from the MC stack
53 Int_t GetMotherPDGFromStack(const AliESDtrack* _track); // return mother PID from the MC stack
54 Int_t GetMCProcess(const AliESDtrack* _track); // return process number
55 Int_t GetMCProcessFromStack(const AliESDtrack* _track); // return process number
56 Int_t GetMCProcessMother(const AliESDtrack* _track); // return process number of the mother track
57 Int_t GetMCProcessMotherFromStack(const AliESDtrack* _track); // return process number of the mother track
59 Bool_t ConnectMCEvent();
62 Bool_t IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother);
63 Bool_t IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
64 Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother);
66 Bool_t HaveSameMother(const AliDielectronPair *pair);
68 Int_t GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother);
69 Int_t GetLabelMotherWithPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
71 AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track); // return MC track directly from MC event
72 AliVParticle* GetMCTrackFromMCEvent(Int_t itrk); // return MC track directly from MC event
73 TParticle* GetMCTrackFromStack(const AliESDtrack* _track); // return MC track from stack
74 AliMCParticle* GetMCTrack(const AliESDtrack* _track); // return MC track associated with reco track
75 AliAODMCParticle* GetMCTrack( const AliAODTrack* _track); // return MC track associated with reco AOD track
77 TParticle* GetMCTrackMotherFromStack(const AliESDtrack* _track); // return MC mother track from stack
78 AliMCParticle* GetMCTrackMother(const AliESDtrack* _track); // return MC mother track from stack
79 AliAODMCParticle* GetMCTrackMother(const AliAODTrack* _track); // return MC mother fot track AODTrack
80 AliMCParticle* GetMCTrackMother(const AliMCParticle* _particle); // return MC mother track from stack
81 AliAODMCParticle* GetMCTrackMother(const AliAODMCParticle* _particle); // return MC mother track from stack
83 Int_t NumberOfDaughters(const AliESDtrack* track); // return number of daughters
84 Int_t NumberOfDaughters(const AliAODTrack* track); // return number of daughters for AOD track
85 Int_t NumberOfDaughters(const AliMCParticle* particle); // return number of daughters
86 Int_t NumberOfDaughters(const AliAODMCParticle* particle); // return number of daughters
88 void GetDaughters(const TObject *mother, AliVParticle* &d1, AliVParticle* &d2);
89 Int_t IsJpsiPrimary(const AliDielectronPair * pair);
90 Int_t IsJpsiPrimary(const AliVParticle * pair);
93 AliMCEvent *fMCEvent; // MC event object
94 AliStack *fStack; // MC stack
96 AnalysisType fAnaType; // Analysis type
97 Bool_t fHasMC; // Do we have an MC handler?
99 static AliDielectronMC* fgInstance; //! singleton pointer
100 TClonesArray* fMcArray; //mcArray for AOD MC particles
103 AliDielectronMC(const AliDielectronMC &c);
104 AliDielectronMC &operator=(const AliDielectronMC &c);
106 Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother);
107 Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother);
109 Int_t GetLabelMotherWithPdgESD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
110 Int_t GetLabelMotherWithPdgAOD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
112 ClassDef(AliDielectronMC, 0)
118 inline Bool_t AliDielectronMC::IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother)
120 return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
122 //___________________________________________________________
123 inline Bool_t AliDielectronMC::IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother){
124 return GetLabelMotherWithPdg(particle1,particle2,pdgMother)>=0;
126 //___________________________________________________________
127 inline Int_t AliDielectronMC::GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother){
128 return GetLabelMotherWithPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);