[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                               */

//#####################################################
//#                                                   # 
//#              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 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 GetMCPID(AliESDtrack* _track);                      // return MC PID
  Int_t GetMCPIDFromStack(AliESDtrack* _track);             // return MC PID
  Int_t GetMotherPDG(AliESDtrack* _track);                  // return mother PID from the MC stack
  Int_t GetMotherPDGFromStack(AliESDtrack* _track);         // return mother PID from the MC stack
  Int_t GetMCProcess(AliESDtrack* _track);                  // return process number
  Int_t GetMCProcessFromStack(AliESDtrack* _track);         // return process number
  Int_t GetMCProcessMother(AliESDtrack* _track);            // return process number of the mother track
  Int_t GetMCProcessMotherFromStack(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);
  
  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(AliESDtrack* _track);        // return MC track from stack
  AliMCParticle* GetMCTrack(AliESDtrack* _track);             // return MC track associated with reco track
  TParticle* GetMCTrackMotherFromStack(AliESDtrack* _track);  // return MC mother track from stack
  AliMCParticle* GetMCTrackMother(AliESDtrack* _track);       // return MC mother track from stack

  void GetDaughters(const TObject *mother, AliVParticle* &d1, AliVParticle* &d2);
  
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
  
  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
	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
	45	Int_t GetMCPID(AliESDtrack* _track); // return MC PID
	46	Int_t GetMCPIDFromStack(AliESDtrack* _track); // return MC PID
	47	Int_t GetMotherPDG(AliESDtrack* _track); // return mother PID from the MC stack
	48	Int_t GetMotherPDGFromStack(AliESDtrack* _track); // return mother PID from the MC stack
	49	Int_t GetMCProcess(AliESDtrack* _track); // return process number
	50	Int_t GetMCProcessFromStack(AliESDtrack* _track); // return process number
	51	Int_t GetMCProcessMother(AliESDtrack* _track); // return process number of the mother track
	52	Int_t GetMCProcessMotherFromStack(AliESDtrack* _track); // return process number of the mother track
	53
	54	Bool_t ConnectMCEvent();
	55	Bool_t UpdateStack();
	56
a655b716	57	Bool_t IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother);
b2a297fa	58	Bool_t IsMotherPdg(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
	59	Bool_t IsMCMotherToEE(const AliVParticle *particle, Int_t pdgMother);
	60
a655b716	61	Int_t GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother);
	62	Int_t GetLabelMotherWithPdg(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
	63
b2a297fa	64	AliVParticle* GetMCTrackFromMCEvent(AliVParticle *track); // return MC track directly from MC event
	65	AliVParticle* GetMCTrackFromMCEvent(Int_t _itrk); // return MC track directly from MC event
	66	TParticle* GetMCTrackFromStack(AliESDtrack* _track); // return MC track from stack
	67	AliMCParticle* GetMCTrack(AliESDtrack* _track); // return MC track associated with reco track
	68	TParticle* GetMCTrackMotherFromStack(AliESDtrack* _track); // return MC mother track from stack
	69	AliMCParticle* GetMCTrackMother(AliESDtrack* _track); // return MC mother track from stack
6551594b	70
6551594b	71	void GetDaughters(const TObject mother, AliVParticle &d1, AliVParticle* &d2);
b2a297fa	72
	73	private:
	74	AliMCEvent *fMCEvent; // MC event object
	75	AliStack *fStack; // MC stack
	76
	77	AnalysisType fAnaType; // Analysis type
572b0139	78	Bool_t fHasMC; // Do we have an MC handler?
b2a297fa	79
	80	static AliDielectronMC* fgInstance; //! singleton pointer
	81
	82	AliDielectronMC(const AliDielectronMC &c);
	83	AliDielectronMC &operator=(const AliDielectronMC &c);
	84
	85	Bool_t IsMCMotherToEEesd(const AliMCParticle *particle, Int_t pdgMother);
	86	Bool_t IsMCMotherToEEaod(const AliAODMCParticle *particle, Int_t pdgMother);
	87
a655b716	88	Int_t GetLabelMotherWithPdgESD(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
a655b716	89	Int_t GetLabelMotherWithPdgAOD(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother);
b2a297fa	90
	91	ClassDef(AliDielectronMC, 0)
	92	};
	93
a655b716	94	//
	95	// inline functions
	96	//
	97	inline Bool_t AliDielectronMC::IsMotherPdg(const AliDielectronPair* pair, Int_t pdgMother)
b2a297fa	98	{
b2a297fa	99	return IsMotherPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
b2a297fa	100	}
a655b716	101	//___________________________________________________________
	102	inline Bool_t AliDielectronMC::IsMotherPdg(const AliVParticle particle1, const AliVParticle particle2, Int_t pdgMother){
	103	return GetLabelMotherWithPdg(particle1,particle2,pdgMother)>=0;
	104	}
	105	//___________________________________________________________
	106	inline Int_t AliDielectronMC::GetLabelMotherWithPdg(const AliDielectronPair* pair, Int_t pdgMother){
	107	return GetLabelMotherWithPdg(pair->GetFirstDaughter(),pair->GetSecondDaughter(),pdgMother);
	108	}
b2a297fa	109
b2a297fa	110	#endif