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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 | ||
37 | static AliDielectronMC* Instance(); | |
38 | ||
39 | void Initialize(); // initialization | |
40 | Int_t GetNMCTracks(); // return number of generated tracks | |
41 | Int_t GetNMCTracksFromStack(); // return number of generated tracks from stack | |
42 | Int_t GetMCPID(AliESDtrack* _track); // return MC PID | |
43 | Int_t GetMCPIDFromStack(AliESDtrack* _track); // return MC PID | |
44 | Int_t GetMotherPDG(AliESDtrack* _track); // return mother PID from the MC stack | |
45 | Int_t GetMotherPDGFromStack(AliESDtrack* _track); // return mother PID from the MC stack | |
46 | Int_t GetMCProcess(AliESDtrack* _track); // return process number | |
47 | Int_t GetMCProcessFromStack(AliESDtrack* _track); // return process number | |
48 | Int_t GetMCProcessMother(AliESDtrack* _track); // return process number of the mother track | |
49 | Int_t GetMCProcessMotherFromStack(AliESDtrack* _track); // return process number of the mother track | |
50 | ||
51 | Bool_t ConnectMCEvent(); | |
52 | Bool_t UpdateStack(); | |
53 | ||
54 | Bool_t IsMotherPdg(const TObject* particle, Int_t pdgMother); | |
55 | Bool_t IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); | |
56 | Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother); | |
57 | ||
58 | AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track); // return MC track directly from MC event | |
59 | AliVParticle* GetMCTrackFromMCEvent(Int_t _itrk); // return MC track directly from MC event | |
60 | TParticle* GetMCTrackFromStack(AliESDtrack* _track); // return MC track from stack | |
61 | AliMCParticle* GetMCTrack(AliESDtrack* _track); // return MC track associated with reco track | |
62 | TParticle* GetMCTrackMotherFromStack(AliESDtrack* _track); // return MC mother track from stack | |
63 | AliMCParticle* GetMCTrackMother(AliESDtrack* _track); // return MC mother track from stack | |
6551594b | 64 | |
65 | void GetDaughters(const TObject *mother, AliVParticle* &d1, AliVParticle* &d2); | |
b2a297fa | 66 | |
67 | private: | |
68 | AliMCEvent *fMCEvent; // MC event object | |
69 | AliStack *fStack; // MC stack | |
70 | ||
71 | AnalysisType fAnaType; // Analysis type | |
72 | ||
73 | static AliDielectronMC* fgInstance; //! singleton pointer | |
74 | ||
75 | AliDielectronMC(const AliDielectronMC &c); | |
76 | AliDielectronMC &operator=(const AliDielectronMC &c); | |
77 | ||
78 | Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother); | |
79 | Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother); | |
80 | ||
81 | Bool_t IsMotherPdgESD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); | |
82 | Bool_t IsMotherPdgAOD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother); | |
83 | ||
84 | ClassDef(AliDielectronMC, 0) | |
85 | }; | |
86 | ||
87 | inline Bool_t AliDielectronMC::IsMotherPdg(const TObject* particle, Int_t pdgMother) | |
88 | { | |
89 | // | |
90 | // | |
91 | // | |
92 | if (particle->IsA()!=AliDielectronPair::Class()) return kFALSE; | |
93 | const AliDielectronPair *pair=static_cast<const AliDielectronPair*>(particle); | |
94 | return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother); | |
95 | } | |
96 | ||
97 | #endif |