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b2a297fa | 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 */ | |
5 | ||
6 | //##################################################### | |
7 | //# # | |
8 | //# Class AliDielectronMC # | |
9 | //# Cut Class for Jpsi->e+e- analysis # | |
10 | //# # | |
11 | //# by WooJin J. Park, GSI / W.J.Park@gsi.de # | |
12 | //# # | |
13 | //##################################################### | |
14 | ||
15 | #ifndef ROOT_TObject | |
16 | #include <TObject.h> | |
17 | #endif | |
18 | class AliESDEvent; | |
19 | class AliHFEpid; | |
20 | class AliStack; | |
21 | class AliMCEvent; | |
22 | class AliESDtrack; | |
23 | class TParticle; | |
24 | class AliMCParticle; | |
25 | class AliAODMCParticle; | |
26 | ||
27 | #include "AliDielectronPair.h" | |
28 | ||
29 | class AliDielectronMC : public TObject{ | |
30 | ||
31 | public: | |
32 | enum AnalysisType {kUNSET=0, kESD, kAOD}; | |
33 | ||
34 | AliDielectronMC(AnalysisType type=kUNSET); | |
35 | virtual ~AliDielectronMC(); | |
36 | ||
572b0139 | 37 | void SetHasMC(Bool_t hasMC) { fHasMC=hasMC; } |
38 | Bool_t HasMC() const { return fHasMC; } | |
39 | ||
b2a297fa | 40 | static AliDielectronMC* Instance(); |
41 | ||
42 | void Initialize(); // initialization | |
43 | Int_t GetNMCTracks(); // return number of generated tracks | |
44 | Int_t GetNMCTracksFromStack(); // return number of generated tracks from stack | |
2a14a7b1 | 45 | Int_t GetNPrimary(); // return number of primary tracks |
46 | Int_t GetNPrimaryFromStack(); // return number of primary tracks from stack | |
8df8e382 | 47 | Int_t GetMCPID(const AliESDtrack* _track); // return MC PID |
48 | Int_t GetMCPIDFromStack(const AliESDtrack* _track); // return MC PID | |
49 | Int_t GetMotherPDG(const AliESDtrack* _track); // return mother PID from the MC stack | |
50 | Int_t GetMotherPDGFromStack(const AliESDtrack* _track); // return mother PID from the MC stack | |
51 | Int_t GetMCProcess(const AliESDtrack* _track); // return process number | |
52 | Int_t GetMCProcessFromStack(const AliESDtrack* _track); // return process number | |
53 | Int_t GetMCProcessMother(const AliESDtrack* _track); // return process number of the mother track | |
54 | Int_t GetMCProcessMotherFromStack(const AliESDtrack* _track); // return process number of the mother track | |
b2a297fa | 55 | |
56 | Bool_t ConnectMCEvent(); | |
57 | Bool_t UpdateStack(); | |
58 | ||
a655b716 | 59 | Bool_t IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother); |
b2a297fa | 60 | Bool_t IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); |
61 | Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother); | |
8df8e382 | 62 | |
63 | Bool_t HaveSameMother(const AliDielectronPair *pair); | |
b2a297fa | 64 | |
a655b716 | 65 | Int_t GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother); |
66 | Int_t GetLabelMotherWithPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); | |
67 | ||
b2a297fa | 68 | AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track); // return MC track directly from MC event |
83e37742 | 69 | AliVParticle* GetMCTrackFromMCEvent(Int_t itrk); // return MC track directly from MC event |
8df8e382 | 70 | TParticle* GetMCTrackFromStack(const AliESDtrack* _track); // return MC track from stack |
71 | AliMCParticle* GetMCTrack(const AliESDtrack* _track); // return MC track associated with reco track | |
72 | ||
73 | TParticle* GetMCTrackMotherFromStack(const AliESDtrack* _track); // return MC mother track from stack | |
74 | AliMCParticle* GetMCTrackMother(const AliESDtrack* _track); // return MC mother track from stack | |
75 | AliMCParticle* GetMCTrackMother(const AliMCParticle* _particle); // return MC mother track from stack | |
76 | AliAODMCParticle* GetMCTrackMother(const AliAODMCParticle* _particle); // return MC mother track from stack | |
77 | ||
78 | Int_t NumberOfDaughters(const AliESDtrack* track); // return number of daughters | |
79 | Int_t NumberOfDaughters(const AliMCParticle* particle); // return number of daughters | |
80 | Int_t NumberOfDaughters(const AliAODMCParticle* particle); // return number of daughters | |
6551594b | 81 | |
82 | void GetDaughters(const TObject *mother, AliVParticle* &d1, AliVParticle* &d2); | |
b2a297fa | 83 | |
84 | private: | |
85 | AliMCEvent *fMCEvent; // MC event object | |
86 | AliStack *fStack; // MC stack | |
87 | ||
88 | AnalysisType fAnaType; // Analysis type | |
572b0139 | 89 | Bool_t fHasMC; // Do we have an MC handler? |
b2a297fa | 90 | |
91 | static AliDielectronMC* fgInstance; //! singleton pointer | |
92 | ||
93 | AliDielectronMC(const AliDielectronMC &c); | |
94 | AliDielectronMC &operator=(const AliDielectronMC &c); | |
95 | ||
96 | Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother); | |
97 | Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother); | |
98 | ||
a655b716 | 99 | Int_t GetLabelMotherWithPdgESD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); |
100 | Int_t GetLabelMotherWithPdgAOD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); | |
b2a297fa | 101 | |
102 | ClassDef(AliDielectronMC, 0) | |
103 | }; | |
104 | ||
a655b716 | 105 | // |
106 | // inline functions | |
107 | // | |
108 | inline Bool_t AliDielectronMC::IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother) | |
b2a297fa | 109 | { |
b2a297fa | 110 | return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother); |
111 | } | |
a655b716 | 112 | //___________________________________________________________ |
113 | inline Bool_t AliDielectronMC::IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother){ | |
114 | return GetLabelMotherWithPdg(particle1,particle2,pdgMother)>=0; | |
115 | } | |
116 | //___________________________________________________________ | |
117 | inline Int_t AliDielectronMC::GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother){ | |
118 | return GetLabelMotherWithPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother); | |
119 | } | |
b2a297fa | 120 | |
121 | #endif |