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 */
8 //#####################################################
10 //# Class AliDielectronMC #
11 //# Cut Class for Jpsi->e+e- analysis #
13 //# by WooJin J. Park, GSI / W.J.Park@gsi.de #
15 //#####################################################
28 class AliAODMCParticle;
30 #include "AliDielectronPair.h"
32 class AliDielectronMC : public TObject{
35 enum AnalysisType {kUNSET=0, kESD, kAOD};
37 AliDielectronMC(AnalysisType type=kUNSET);
38 virtual ~AliDielectronMC();
40 void SetHasMC(Bool_t hasMC) { fHasMC=hasMC; }
41 Bool_t HasMC() const { return fHasMC; }
43 static AliDielectronMC* Instance();
45 void Initialize(); // initialization
46 Int_t GetNMCTracks(); // return number of generated tracks
47 Int_t GetNMCTracksFromStack(); // return number of generated tracks from stack
48 Int_t GetNPrimary(); // return number of primary tracks
49 Int_t GetNPrimaryFromStack(); // return number of primary tracks from stack
50 Int_t GetMCPID(const AliESDtrack* _track); // return MC PID
51 Int_t GetMCPID(const AliAODTrack* _track); // return MC PID for AODtrack
52 Int_t GetMCPIDFromStack(const AliESDtrack* _track); // return MC PID
53 Int_t GetMotherPDG(const AliESDtrack* _track); // return mother PID from the MC stack
54 Int_t GetMotherPDG(const AliAODTrack* _track); // return mother PID from the MC stack
55 Int_t GetMotherPDGFromStack(const AliESDtrack* _track); // return mother PID from the MC stack
56 Int_t GetMCProcess(const AliESDtrack* _track); // return process number
57 Int_t GetMCProcessFromStack(const AliESDtrack* _track); // return process number
58 Int_t GetMCProcessMother(const AliESDtrack* _track); // return process number of the mother track
59 Int_t GetMCProcessMotherFromStack(const AliESDtrack* _track); // return process number of the mother track
61 Bool_t ConnectMCEvent();
64 Bool_t IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother);
65 Bool_t IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
66 Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother);
68 Bool_t HaveSameMother(const AliDielectronPair *pair);
70 Int_t GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother);
71 Int_t GetLabelMotherWithPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
73 AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track); // return MC track directly from MC event
74 AliVParticle* GetMCTrackFromMCEvent(Int_t itrk); // return MC track directly from MC event
75 TParticle* GetMCTrackFromStack(const AliESDtrack* _track); // return MC track from stack
76 AliMCParticle* GetMCTrack(const AliESDtrack* _track); // return MC track associated with reco track
77 AliAODMCParticle* GetMCTrack( const AliAODTrack* _track); // return MC track associated with reco AOD track
79 TParticle* GetMCTrackMotherFromStack(const AliESDtrack* _track); // return MC mother track from stack
80 AliMCParticle* GetMCTrackMother(const AliESDtrack* _track); // return MC mother track from stack
81 AliAODMCParticle* GetMCTrackMother(const AliAODTrack* _track); // return MC mother fot track AODTrack
82 AliMCParticle* GetMCTrackMother(const AliMCParticle* _particle); // return MC mother track from stack
83 AliAODMCParticle* GetMCTrackMother(const AliAODMCParticle* _particle); // return MC mother track from stack
85 Int_t NumberOfDaughters(const AliESDtrack* track); // return number of daughters
86 Int_t NumberOfDaughters(const AliAODTrack* track); // return number of daughters for AOD track
87 Int_t NumberOfDaughters(const AliMCParticle* particle); // return number of daughters
88 Int_t NumberOfDaughters(const AliAODMCParticle* particle); // return number of daughters
90 void GetDaughters(const TObject *mother, AliVParticle* &d1, AliVParticle* &d2);
91 Int_t IsJpsiPrimary(const AliDielectronPair * pair);
92 Int_t IsJpsiPrimary(const AliVParticle * pair);
95 AliMCEvent *fMCEvent; // MC event object
96 AliStack *fStack; // MC stack
98 AnalysisType fAnaType; // Analysis type
99 Bool_t fHasMC; // Do we have an MC handler?
101 static AliDielectronMC* fgInstance; //! singleton pointer
102 TClonesArray* fMcArray; //mcArray for AOD MC particles
105 AliDielectronMC(const AliDielectronMC &c);
106 AliDielectronMC &operator=(const AliDielectronMC &c);
108 Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother);
109 Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother);
111 Int_t GetLabelMotherWithPdgESD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
112 Int_t GetLabelMotherWithPdgAOD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
114 ClassDef(AliDielectronMC, 0)
120 inline Bool_t AliDielectronMC::IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother)
122 return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
124 //___________________________________________________________
125 inline Bool_t AliDielectronMC::IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother){
126 return GetLabelMotherWithPdg(particle1,particle2,pdgMother)>=0;
128 //___________________________________________________________
129 inline Int_t AliDielectronMC::GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother){
130 return GetLabelMotherWithPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);