[u/mrichter/AliRoot.git] / PWG3 / dielectron / AliDielectronMC.h

#ifndef ALIDIELECTRONMC_H
#define ALIDIELECTRONMC_H
/* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */ 

//#####################################################
//#                                                   # 
//#              Class AliDielectronMC                #
//#       Cut Class for Jpsi->e+e- analysis           #
//#                                                   #
//#   by WooJin J. Park, GSI / W.J.Park@gsi.de        #
//#                                                   #
//#####################################################

#ifndef ROOT_TObject
#include <TObject.h>
#endif
class AliESDEvent;
class AliHFEpid;
class AliStack;
class AliMCEvent;
class AliESDtrack;
class AliAODTrack;
class TParticle;
class AliMCParticle;
class AliAODMCParticle;

#include "AliDielectronPair.h"

class AliDielectronMC : public TObject{
  
public:
  enum AnalysisType {kUNSET=0, kESD, kAOD};
  
  AliDielectronMC(AnalysisType type=kUNSET);
  virtual ~AliDielectronMC();

  void SetHasMC(Bool_t hasMC) { fHasMC=hasMC; }
  Bool_t HasMC() const { return fHasMC; }
  
  static AliDielectronMC* Instance();
  
  void Initialize();                              // initialization
  Int_t GetNMCTracks();                                     // return number of generated tracks
  Int_t GetNMCTracksFromStack();                            // return number of generated tracks from stack
  Int_t GetNPrimary();                                            // return number of primary tracks
  Int_t GetNPrimaryFromStack();                                   // return number of primary tracks from stack
  Int_t GetMCPID(const AliESDtrack* _track);                      // return MC PID
  Int_t GetMCPID(const AliAODTrack* _track);                      // return MC PID for AODtrack
  Int_t GetMCPIDFromStack(const AliESDtrack* _track);             // return MC PID
  Int_t GetMotherPDG(const AliESDtrack* _track);                  // return mother PID from the MC stack
  Int_t GetMotherPDG(const AliAODTrack* _track);                  // return mother PID from the MC stack
  Int_t GetMotherPDGFromStack(const AliESDtrack* _track);         // return mother PID from the MC stack
  Int_t GetMCProcess(const AliESDtrack* _track);                  // return process number
  Int_t GetMCProcessFromStack(const AliESDtrack* _track);         // return process number
  Int_t GetMCProcessMother(const AliESDtrack* _track);            // return process number of the mother track
  Int_t GetMCProcessMotherFromStack(const AliESDtrack* _track);   // return process number of the mother track
  
  Bool_t ConnectMCEvent();
  Bool_t UpdateStack();

  Bool_t IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother);
  Bool_t IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
  Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother);

  Bool_t HaveSameMother(const AliDielectronPair *pair);
  
  Int_t GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother);
  Int_t GetLabelMotherWithPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
  
  AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track);   // return MC track directly from MC event
  AliVParticle* GetMCTrackFromMCEvent(Int_t itrk);           // return MC track directly from MC event
  TParticle* GetMCTrackFromStack(const AliESDtrack* _track);        // return MC track from stack
  AliMCParticle* GetMCTrack(const AliESDtrack* _track);             // return MC track associated with reco track
  AliAODMCParticle* GetMCTrack( const AliAODTrack* _track);          // return MC track associated with reco AOD track
  
  TParticle* GetMCTrackMotherFromStack(const AliESDtrack* _track);  // return MC mother track from stack
  AliMCParticle* GetMCTrackMother(const AliESDtrack* _track);       // return MC mother track from stack
  AliAODMCParticle* GetMCTrackMother(const AliAODTrack* _track);       // return MC mother fot track AODTrack
  AliMCParticle* GetMCTrackMother(const AliMCParticle* _particle);       // return MC mother track from stack
  AliAODMCParticle* GetMCTrackMother(const AliAODMCParticle* _particle);       // return MC mother track from stack

  Int_t NumberOfDaughters(const AliESDtrack* track);                 // return number of daughters
  Int_t NumberOfDaughters(const AliAODTrack* track);                 // return number of daughters for AOD track
  Int_t NumberOfDaughters(const AliMCParticle* particle);                 // return number of daughters
  Int_t NumberOfDaughters(const AliAODMCParticle* particle);                 // return number of daughters

  void GetDaughters(const TObject *mother, AliVParticle* &d1, AliVParticle* &d2);
  Int_t IsJpsiPrimary(const AliDielectronPair * pair);
  Int_t IsJpsiPrimary(const AliVParticle * pair);
  
private:
  AliMCEvent    *fMCEvent;  // MC event object
  AliStack      *fStack;    // MC stack

  AnalysisType fAnaType;    // Analysis type
  Bool_t fHasMC;            // Do we have an MC handler?
  
  static AliDielectronMC* fgInstance; //! singleton pointer
  TClonesArray* fMcArray; //mcArray for AOD MC particles 

 
  AliDielectronMC(const AliDielectronMC &c);
  AliDielectronMC &operator=(const AliDielectronMC &c);

  Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother);
  Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother);

  Int_t GetLabelMotherWithPdgESD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
  Int_t GetLabelMotherWithPdgAOD(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother);
  
  ClassDef(AliDielectronMC, 0)
};

//
// inline functions
//
inline Bool_t AliDielectronMC::IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother)
{
  return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
}
//___________________________________________________________
inline Bool_t AliDielectronMC::IsMotherPdg(const AliVParticle *particle1, const AliVParticle *particle2, Int_t pdgMother){
  return GetLabelMotherWithPdg(particle1,particle2,pdgMother)>=0;
}
//___________________________________________________________
inline Int_t AliDielectronMC::GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother){
  return GetLabelMotherWithPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
}

#endif
Commit	Line	Data
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
27de2dfb	6	/* $Id$ */
27de2dfb	7
b2a297fa	8	//#####################################################
	9	//# #
	10	//# Class AliDielectronMC #
	11	//# Cut Class for Jpsi->e+e- analysis #
	12	//# #
	13	//# by WooJin J. Park, GSI / W.J.Park@gsi.de #
	14	//# #
	15	//#####################################################
	16
	17	#ifndef ROOT_TObject
	18	#include <TObject.h>
	19	#endif
	20	class AliESDEvent;
	21	class AliHFEpid;
	22	class AliStack;
	23	class AliMCEvent;
	24	class AliESDtrack;
fb7d2d99	25	class AliAODTrack;
b2a297fa	26	class TParticle;
	27	class AliMCParticle;
	28	class AliAODMCParticle;
	29
	30	#include "AliDielectronPair.h"
	31
	32	class AliDielectronMC : public TObject{
	33
	34	public:
	35	enum AnalysisType {kUNSET=0, kESD, kAOD};
	36
	37	AliDielectronMC(AnalysisType type=kUNSET);
	38	virtual ~AliDielectronMC();
	39
572b0139	40	void SetHasMC(Bool_t hasMC) { fHasMC=hasMC; }
	41	Bool_t HasMC() const { return fHasMC; }
	42
b2a297fa	43	static AliDielectronMC* Instance();
	44
	45	void Initialize(); // initialization
	46	Int_t GetNMCTracks(); // return number of generated tracks
	47	Int_t GetNMCTracksFromStack(); // return number of generated tracks from stack
2a14a7b1	48	Int_t GetNPrimary(); // return number of primary tracks
2a14a7b1	49	Int_t GetNPrimaryFromStack(); // return number of primary tracks from stack
8df8e382	50	Int_t GetMCPID(const AliESDtrack* _track); // return MC PID
fb7d2d99	51	Int_t GetMCPID(const AliAODTrack* _track); // return MC PID for AODtrack
8df8e382	52	Int_t GetMCPIDFromStack(const AliESDtrack* _track); // return MC PID
8df8e382	53	Int_t GetMotherPDG(const AliESDtrack* _track); // return mother PID from the MC stack
fb7d2d99	54	Int_t GetMotherPDG(const AliAODTrack* _track); // return mother PID from the MC stack
8df8e382	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
b2a297fa	60
	61	Bool_t ConnectMCEvent();
	62	Bool_t UpdateStack();
	63
a655b716	64	Bool_t IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother);
b2a297fa	65	Bool_t IsMotherPdg(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
b2a297fa	66	Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother);
8df8e382	67
8df8e382	68	Bool_t HaveSameMother(const AliDielectronPair *pair);
b2a297fa	69
a655b716	70	Int_t GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother);
	71	Int_t GetLabelMotherWithPdg(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
	72
b2a297fa	73	AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track); // return MC track directly from MC event
83e37742	74	AliVParticle* GetMCTrackFromMCEvent(Int_t itrk); // return MC track directly from MC event
8df8e382	75	TParticle* GetMCTrackFromStack(const AliESDtrack* _track); // return MC track from stack
8df8e382	76	AliMCParticle* GetMCTrack(const AliESDtrack* _track); // return MC track associated with reco track
fb7d2d99	77	AliAODMCParticle* GetMCTrack( const AliAODTrack* _track); // return MC track associated with reco AOD track
8df8e382	78
	79	TParticle* GetMCTrackMotherFromStack(const AliESDtrack* _track); // return MC mother track from stack
	80	AliMCParticle* GetMCTrackMother(const AliESDtrack* _track); // return MC mother track from stack
fb7d2d99	81	AliAODMCParticle* GetMCTrackMother(const AliAODTrack* _track); // return MC mother fot track AODTrack
8df8e382	82	AliMCParticle* GetMCTrackMother(const AliMCParticle* _particle); // return MC mother track from stack
	83	AliAODMCParticle* GetMCTrackMother(const AliAODMCParticle* _particle); // return MC mother track from stack
	84
	85	Int_t NumberOfDaughters(const AliESDtrack* track); // return number of daughters
fb7d2d99	86	Int_t NumberOfDaughters(const AliAODTrack* track); // return number of daughters for AOD track
8df8e382	87	Int_t NumberOfDaughters(const AliMCParticle* particle); // return number of daughters
8df8e382	88	Int_t NumberOfDaughters(const AliAODMCParticle* particle); // return number of daughters
6551594b	89
6551594b	90	void GetDaughters(const TObject mother, AliVParticle &d1, AliVParticle* &d2);
fb7d2d99	91	Int_t IsJpsiPrimary(const AliDielectronPair * pair);
fb7d2d99	92	Int_t IsJpsiPrimary(const AliVParticle * pair);
b2a297fa	93
	94	private:
	95	AliMCEvent *fMCEvent; // MC event object
	96	AliStack *fStack; // MC stack
	97
	98	AnalysisType fAnaType; // Analysis type
572b0139	99	Bool_t fHasMC; // Do we have an MC handler?
b2a297fa	100
b2a297fa	101	static AliDielectronMC* fgInstance; //! singleton pointer
fb7d2d99	102	TClonesArray* fMcArray; //mcArray for AOD MC particles
	103
	104
b2a297fa	105	AliDielectronMC(const AliDielectronMC &c);
	106	AliDielectronMC &operator=(const AliDielectronMC &c);
	107
	108	Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother);
	109	Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother);
	110
a655b716	111	Int_t GetLabelMotherWithPdgESD(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
a655b716	112	Int_t GetLabelMotherWithPdgAOD(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
b2a297fa	113
	114	ClassDef(AliDielectronMC, 0)
	115	};
	116
a655b716	117	//
	118	// inline functions
	119	//
	120	inline Bool_t AliDielectronMC::IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother)
b2a297fa	121	{
b2a297fa	122	return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
b2a297fa	123	}
a655b716	124	//___________________________________________________________
	125	inline Bool_t AliDielectronMC::IsMotherPdg(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother){
	126	return GetLabelMotherWithPdg(particle1,particle2,pdgMother)>=0;
	127	}
	128	//___________________________________________________________
	129	inline Int_t AliDielectronMC::GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother){
	130	return GetLabelMotherWithPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
	131	}
b2a297fa	132
fb7d2d99	133	#endif
fb7d2d99	134