[u/mrichter/AliRoot.git] / PWGDQ / dielectron / AliDielectron.h

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

//#####################################################
//#                                                   # 
//#             Class AliDielectron                   #
//#         Main Class for e+e- analysis              #
//#                                                   #
//#  by WooJin J. Park, GSI / W.J.Park@gsi.de         #
//#     Ionut C. Arsene, GSI / I.C.Arsene@gsi.de      #
//#     Magnus Mager, CERN / Magnus.Mager@cern.ch     #
//#     Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch #
//#                                                   #
//#####################################################


#include <TNamed.h>
#include <TObjArray.h>

#include <AliAnalysisFilter.h>
#include <AliKFParticle.h>

#include "AliDielectronHistos.h"
#include "AliDielectronHF.h"

class AliEventplane;
class AliVEvent;
class AliMCEvent;
class THashList;
class AliDielectronCF;
class AliDielectronDebugTree;
class AliDielectronTrackRotator;
class AliDielectronPair;
class AliDielectronSignalMC;
class AliDielectronMixingHandler;

//________________________________________________________________
class AliDielectron : public TNamed {

  friend class AliDielectronMixingHandler; //mixing as friend class

public:
  enum EPairType { kEv1PP=0, kEv1PM, kEv1MM,
      kEv1PEv2P, kEv1MEv2P, kEv2PP,
      kEv1PEv2M, kEv1MEv2M, kEv2PM,
      kEv2MM, kEv1PMRot };
  enum ELegType  { kEv1P, kEv1M, kEv2P, kEv2M };
  
  AliDielectron();
  AliDielectron(const char* name, const char* title);
  virtual ~AliDielectron();

  void Init();
  
  void Process(AliVEvent *ev1, AliVEvent *ev2=0);

  const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; }
  const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; }
  const AliAnalysisFilter& GetPairFilter()  const { return fPairFilter;  }

  AliAnalysisFilter& GetEventFilter()       { return fEventFilter;       }
  AliAnalysisFilter& GetTrackFilter()       { return fTrackFilter;       }
  AliAnalysisFilter& GetPairFilter()        { return fPairFilter;        }
  AliAnalysisFilter& GetPairPreFilter()     { return fPairPreFilter;     }
  AliAnalysisFilter& GetPairPreFilterLegs() { return fPairPreFilterLegs; }
  AliAnalysisFilter& GetEventPlanePreFilter(){ return fEventPlanePreFilter; }
  AliAnalysisFilter& GetEventPlanePOIPreFilter(){ return fEventPlanePOIPreFilter; }

  void  SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; }
  void  SetLegPdg(Int_t pdgLeg1, Int_t pdgLeg2) { fPdgLeg1=pdgLeg1; fPdgLeg2=pdgLeg2; }
  Int_t GetMotherPdg() const { return fPdgMother; }
  Int_t GetLeg1Pdg()   const { return fPdgLeg1;   }
  Int_t GetLeg2Pdg()   const { return fPdgLeg2;   }

  void SetNoPairing(Bool_t noPairing=kTRUE) { fNoPairing=noPairing; }
  void SetUseKF(Bool_t useKF=kTRUE) { fUseKF=useKF; }
  const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;}
  const TObjArray* GetPairArray(Int_t i)  const {return (i>=0&&i<11)?
      static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;}

  TObjArray** GetPairArraysPointer() { return &fPairCandidates; }
  void SetHistogramArray(AliDielectronHF * const histoarray) { fHistoArray=histoarray; }
  const TObjArray * GetHistogramArray() const { return fHistoArray?fHistoArray->GetHistArray():0x0; }

  void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; }
  AliDielectronHistos* GetHistoManager() const { return fHistos; }
  const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; }

  Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; }
  Bool_t HasCandidatesLikeSign() const {
    return (GetPairArray(0)&&GetPairArray(2)) ? (GetPairArray(0)->GetEntriesFast()>0 || GetPairArray(2)->GetEntriesFast()>0) : 0;
  }
  
  Bool_t HasCandidatesTR() const {return GetPairArray(10)?GetPairArray(10)->GetEntriesFast()>0:0;} 
  void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; }
  AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; }

  void SetPreFilterEventPlane(Bool_t setValue=kTRUE){fPreFilterEventPlane=setValue;};
  void SetLikeSignSubEvents(Bool_t setValue=kTRUE){fLikeSignSubEvents=setValue;};
  void SetPreFilterUnlikeOnly(Bool_t setValue=kTRUE){fPreFilterUnlikeOnly=setValue;};
  void SetPreFilterAllSigns(Bool_t setValue=kTRUE){fPreFilterAllSigns=setValue;};

  void SetTrackRotator(AliDielectronTrackRotator * const rot) { fTrackRotator=rot; }
  AliDielectronTrackRotator* GetTrackRotator() const { return fTrackRotator; }

  void SetMixingHandler(AliDielectronMixingHandler *mix) { fMixing=mix; }
  AliDielectronMixingHandler* GetMixingHandler() const { return fMixing; }

  void SetHasMC(Bool_t hasMC) { fHasMC = hasMC; }
  Bool_t GetHasMC() const     { return fHasMC;  }

  void SetStoreRotatedPairs(Bool_t storeTR) {fStoreRotatedPairs = storeTR;}
  void SetDontClearArrays(Bool_t dontClearArrays=kTRUE) { fDontClearArrays=dontClearArrays; }

  void AddSignalMC(AliDielectronSignalMC* signal);  

  void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; }

  const TObjArray* GetMCSignals() const { return fSignalsMC; }
  static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; }
  static const char* PairClassName(Int_t i)  { return (i>=0&&i<11)?fgkPairClassNames[i]:""; }

  void SetEstimatorFilename(const Char_t* filename) {fEstimatorFilename = filename;}
  void SetTRDcorrectionFilename(const Char_t* filename) {fTRDpidCorrectionFilename = filename;}
  void SetVZEROCalibrationFilename(const Char_t* filename) {fVZEROCalibrationFilename = filename;}
  void SetVZERORecenteringFilename(const Char_t* filename) {fVZERORecenteringFilename = filename;}

  void SaveDebugTree();

private:
  
  AliAnalysisFilter fEventFilter;    // Event cuts
  AliAnalysisFilter fTrackFilter;    // leg cuts
  AliAnalysisFilter fPairPreFilter;  // pair prefilter cuts
  AliAnalysisFilter fPairPreFilterLegs; // Leg filter after the pair prefilter cuts
  AliAnalysisFilter fPairFilter;     // pair cuts
  AliAnalysisFilter fEventPlanePreFilter;  // event plane prefilter cuts  
  AliAnalysisFilter fEventPlanePOIPreFilter;  // PoI cuts in the event plane prefilter  

  Int_t fPdgMother;     // pdg code of mother tracks
  Int_t fPdgLeg1;       // pdg code leg1
  Int_t fPdgLeg2;       // pdg code leg2

  TObjArray* fSignalsMC;      // array of AliDielectronSignalMC

  Bool_t fNoPairing;    // if to skip pairing, can be used for track QA only
  Bool_t fUseKF;    // if to skip pairing, can be used for track QA only

  AliDielectronHF *fHistoArray;   // Histogram framework
  AliDielectronHistos *fHistos;   // Histogram manager
                                  //  Streaming and merging should be handled
                                  //  by the analysis framework
 
  TObjArray fTracks[4];           //! Selected track candidates
                                  //  0: Event1, positive particles
                                  //  1: Event1, negative particles
                                  //  2: Event2, positive particles
                                  //  3: Event2, negative particles

  TObjArray *fPairCandidates;     //! Pair candidate arrays
                                  //TODO: better way to store it? TClonesArray?

  AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair
  AliDielectronTrackRotator *fTrackRotator; //Track rotator
  AliDielectronDebugTree *fDebugTree;  // Debug tree output
  AliDielectronMixingHandler *fMixing; // handler for event mixing

  Bool_t fPreFilterEventPlane;  //Filter for the Eventplane determination in TPC
  Bool_t fLikeSignSubEvents;    //Option for dividing into subevents, sub1 ++ sub2 --
  Bool_t fPreFilterUnlikeOnly;  //Apply PreFilter either in +- or to ++/--/+- individually
  Bool_t fPreFilterAllSigns;    //Apply PreFilter find in  ++/--/+- and remove from all
  Bool_t fHasMC;                //If we run with MC, at the moment only needed in AOD
  Bool_t fStoreRotatedPairs;    //It the rotated pairs should be stored in the pair array
  Bool_t fDontClearArrays;      //Don't clear the arrays at the end of the Process function, needed for external use of pair and tracks
  
  void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0);
  void EventPlanePreFilter(Int_t arr1, Int_t arr2, TObjArray arrTracks1, TObjArray arrTracks2, const AliVEvent *ev, AliEventplane *cevplane);
  void PairPreFilter(Int_t arr1, Int_t arr2, TObjArray &arrTracks1, TObjArray &arrTracks2);
  void FillPairArrays(Int_t arr1, Int_t arr2);
  void FillPairArrayTR();
  
  Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1*(arr1+1)/2+arr2:arr2*(arr2+1)/2+arr1;}

  void InitPairCandidateArrays();
  void ClearArrays();
  
  TObjArray* PairArray(Int_t i);
  
  static const char* fgkTrackClassNames[4];   //Names for track arrays
  static const char* fgkPairClassNames[11];   //Names for pair arrays

  TString fEstimatorFilename;                // name for the pp multiplicity estimators filename
  TString fTRDpidCorrectionFilename;         // name for the file containing the single particle TRD pid corrections
  TString fVZEROCalibrationFilename;         // file containing VZERO channel-by-channel calibration
  TString fVZERORecenteringFilename;         // file containing VZERO Q-vector recentering averages

  void ProcessMC(AliVEvent *ev1);
  
  void  FillHistograms(const AliVEvent *ev, Bool_t pairInfoOnly=kFALSE);
  void  FillMCHistograms(const AliVEvent *ev);
  void  FillHistogramsMC(const AliMCEvent *ev,  AliVEvent *ev1);
  void  FillHistogramsPair(AliDielectronPair *pair,Bool_t fromPreFilter=kFALSE);
  void  FillHistogramsTracks(TObjArray **tracks);

  void  FillDebugTree();

  AliDielectron(const AliDielectron &c);
  AliDielectron &operator=(const AliDielectron &c);
  
  ClassDef(AliDielectron,5);
};

inline void AliDielectron::InitPairCandidateArrays()
{
  //
  // initialise all pair candidate arrays
  //
  fPairCandidates->SetOwner();
  for (Int_t i=0;i<11;++i){
    TObjArray *arr=new TObjArray;
    fPairCandidates->AddAt(arr,i);
    arr->SetOwner();
  }
}

inline TObjArray* AliDielectron::PairArray(Int_t i)
{
  //
  // for internal use only: unchecked return of track array for fast access
  //
  return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i));
}

inline void AliDielectron::ClearArrays()
{
  //
  // Reset the Arrays
  //
  for (Int_t i=0;i<4;++i){
    fTracks[i].Clear();
  }
  for (Int_t i=0;i<11;++i){
    if (PairArray(i)) PairArray(i)->Delete();
  }
}

#endif
Commit	Line	Data
b2a297fa	1	#ifndef ALIDIELECTRON_H
	2	#define ALIDIELECTRON_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 AliDielectron #
	9	//# Main Class for e+e- analysis #
	10	//# #
	11	//# by WooJin J. Park, GSI / W.J.Park@gsi.de #
	12	//# Ionut C. Arsene, GSI / I.C.Arsene@gsi.de #
	13	//# Magnus Mager, CERN / Magnus.Mager@cern.ch #
	14	//# Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch #
	15	//# #
	16	//#####################################################
	17
	18
	19	#include <TNamed.h>
	20	#include <TObjArray.h>
	21
	22	#include <AliAnalysisFilter.h>
	23	#include <AliKFParticle.h>
	24
	25	#include "AliDielectronHistos.h"
620b34a5	26	#include "AliDielectronHF.h"
b2a297fa	27
5720c765	28	class AliEventplane;
b2a297fa	29	class AliVEvent;
ba15fdfb	30	class AliMCEvent;
b2a297fa	31	class THashList;
b2a297fa	32	class AliDielectronCF;
572b0139	33	class AliDielectronDebugTree;
2a14a7b1	34	class AliDielectronTrackRotator;
ffbede40	35	class AliDielectronPair;
ba15fdfb	36	class AliDielectronSignalMC;
5720c765	37	class AliDielectronMixingHandler;
b2a297fa	38
	39	//________________________________________________________________
	40	class AliDielectron : public TNamed {
5720c765	41
	42	friend class AliDielectronMixingHandler; //mixing as friend class
	43
b2a297fa	44	public:
2a14a7b1	45	enum EPairType { kEv1PP=0, kEv1PM, kEv1MM,
	46	kEv1PEv2P, kEv1MEv2P, kEv2PP,
	47	kEv1PEv2M, kEv1MEv2M, kEv2PM,
	48	kEv2MM, kEv1PMRot };
	49	enum ELegType { kEv1P, kEv1M, kEv2P, kEv2M };
b2a297fa	50
	51	AliDielectron();
	52	AliDielectron(const char* name, const char* title);
	53	virtual ~AliDielectron();
	54
	55	void Init();
	56
	57	void Process(AliVEvent ev1, AliVEvent ev2=0);
	58
b2a297fa	59	const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; }
	60	const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; }
	61	const AliAnalysisFilter& GetPairFilter() const { return fPairFilter; }
	62
61d106d3	63	AliAnalysisFilter& GetEventFilter() { return fEventFilter; }
	64	AliAnalysisFilter& GetTrackFilter() { return fTrackFilter; }
	65	AliAnalysisFilter& GetPairFilter() { return fPairFilter; }
	66	AliAnalysisFilter& GetPairPreFilter() { return fPairPreFilter; }
	67	AliAnalysisFilter& GetPairPreFilterLegs() { return fPairPreFilterLegs; }
5720c765	68	AliAnalysisFilter& GetEventPlanePreFilter(){ return fEventPlanePreFilter; }
	69	AliAnalysisFilter& GetEventPlanePOIPreFilter(){ return fEventPlanePOIPreFilter; }
	70
8df8e382	71	void SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; }
	72	void SetLegPdg(Int_t pdgLeg1, Int_t pdgLeg2) { fPdgLeg1=pdgLeg1; fPdgLeg2=pdgLeg2; }
	73	Int_t GetMotherPdg() const { return fPdgMother; }
	74	Int_t GetLeg1Pdg() const { return fPdgLeg1; }
	75	Int_t GetLeg2Pdg() const { return fPdgLeg2; }
554e40f8	76
554e40f8	77	void SetNoPairing(Bool_t noPairing=kTRUE) { fNoPairing=noPairing; }
08b801a6	78	void SetUseKF(Bool_t useKF=kTRUE) { fUseKF=useKF; }
b2a297fa	79	const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;}
5720c765	80	const TObjArray* GetPairArray(Int_t i) const {return (i>=0&&i<11)?
b2a297fa	81	static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;}
	82
	83	TObjArray** GetPairArraysPointer() { return &fPairCandidates; }
620b34a5	84	void SetHistogramArray(AliDielectronHF * const histoarray) { fHistoArray=histoarray; }
	85	const TObjArray * GetHistogramArray() const { return fHistoArray?fHistoArray->GetHistArray():0x0; }
	86
b2a297fa	87	void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; }
c8f0f810	88	AliDielectronHistos* GetHistoManager() const { return fHistos; }
b2a297fa	89	const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; }
	90
	91	Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; }
fb7d2d99	92	Bool_t HasCandidatesLikeSign() const {
	93	return (GetPairArray(0)&&GetPairArray(2)) ? (GetPairArray(0)->GetEntriesFast()>0 \|\| GetPairArray(2)->GetEntriesFast()>0) : 0;
	94	}
	95
5720c765	96	Bool_t HasCandidatesTR() const {return GetPairArray(10)?GetPairArray(10)->GetEntriesFast()>0:0;}
b2a297fa	97	void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; }
b2a297fa	98	AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; }
572b0139	99
5720c765	100	void SetPreFilterEventPlane(Bool_t setValue=kTRUE){fPreFilterEventPlane=setValue;};
5720c765	101	void SetLikeSignSubEvents(Bool_t setValue=kTRUE){fLikeSignSubEvents=setValue;};
554e40f8	102	void SetPreFilterUnlikeOnly(Bool_t setValue=kTRUE){fPreFilterUnlikeOnly=setValue;};
ba15fdfb	103	void SetPreFilterAllSigns(Bool_t setValue=kTRUE){fPreFilterAllSigns=setValue;};
554e40f8	104
2a14a7b1	105	void SetTrackRotator(AliDielectronTrackRotator * const rot) { fTrackRotator=rot; }
2a14a7b1	106	AliDielectronTrackRotator* GetTrackRotator() const { return fTrackRotator; }
fb7d2d99	107
5720c765	108	void SetMixingHandler(AliDielectronMixingHandler *mix) { fMixing=mix; }
	109	AliDielectronMixingHandler* GetMixingHandler() const { return fMixing; }
	110
fb7d2d99	111	void SetHasMC(Bool_t hasMC) { fHasMC = hasMC; }
fb7d2d99	112	Bool_t GetHasMC() const { return fHasMC; }
ba15fdfb	113
5720c765	114	void SetStoreRotatedPairs(Bool_t storeTR) {fStoreRotatedPairs = storeTR;}
2e02dba4	115	void SetDontClearArrays(Bool_t dontClearArrays=kTRUE) { fDontClearArrays=dontClearArrays; }
5720c765	116
ba15fdfb	117	void AddSignalMC(AliDielectronSignalMC* signal);
ba15fdfb	118
572b0139	119	void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; }
c8f0f810	120
c8f0f810	121	const TObjArray* GetMCSignals() const { return fSignalsMC; }
b2a297fa	122	static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; }
2a14a7b1	123	static const char* PairClassName(Int_t i) { return (i>=0&&i<11)?fgkPairClassNames[i]:""; }
572b0139	124
5720c765	125	void SetEstimatorFilename(const Char_t* filename) {fEstimatorFilename = filename;}
5720c765	126	void SetTRDcorrectionFilename(const Char_t* filename) {fTRDpidCorrectionFilename = filename;}
a823f01b	127	void SetVZEROCalibrationFilename(const Char_t* filename) {fVZEROCalibrationFilename = filename;}
a823f01b	128	void SetVZERORecenteringFilename(const Char_t* filename) {fVZERORecenteringFilename = filename;}
5720c765	129
572b0139	130	void SaveDebugTree();
b2a297fa	131
5720c765	132	private:
b2a297fa	133
61d106d3	134	AliAnalysisFilter fEventFilter; // Event cuts
	135	AliAnalysisFilter fTrackFilter; // leg cuts
	136	AliAnalysisFilter fPairPreFilter; // pair prefilter cuts
	137	AliAnalysisFilter fPairPreFilterLegs; // Leg filter after the pair prefilter cuts
	138	AliAnalysisFilter fPairFilter; // pair cuts
5720c765	139	AliAnalysisFilter fEventPlanePreFilter; // event plane prefilter cuts
	140	AliAnalysisFilter fEventPlanePOIPreFilter; // PoI cuts in the event plane prefilter
	141
b2a297fa	142	Int_t fPdgMother; // pdg code of mother tracks
8df8e382	143	Int_t fPdgLeg1; // pdg code leg1
8df8e382	144	Int_t fPdgLeg2; // pdg code leg2
554e40f8	145
ba15fdfb	146	TObjArray* fSignalsMC; // array of AliDielectronSignalMC
ba15fdfb	147
554e40f8	148	Bool_t fNoPairing; // if to skip pairing, can be used for track QA only
08b801a6	149	Bool_t fUseKF; // if to skip pairing, can be used for track QA only
620b34a5	150
620b34a5	151	AliDielectronHF *fHistoArray; // Histogram framework
b2a297fa	152	AliDielectronHistos *fHistos; // Histogram manager
	153	// Streaming and merging should be handled
	154	// by the analysis framework
554e40f8	155
b2a297fa	156	TObjArray fTracks[4]; //! Selected track candidates
	157	// 0: Event1, positive particles
	158	// 1: Event1, negative particles
	159	// 2: Event2, positive particles
	160	// 3: Event2, negative particles
	161
	162	TObjArray *fPairCandidates; //! Pair candidate arrays
	163	//TODO: better way to store it? TClonesArray?
	164
	165	AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair
2a14a7b1	166	AliDielectronTrackRotator *fTrackRotator; //Track rotator
572b0139	167	AliDielectronDebugTree *fDebugTree; // Debug tree output
5720c765	168	AliDielectronMixingHandler *fMixing; // handler for event mixing
554e40f8	169
5720c765	170	Bool_t fPreFilterEventPlane; //Filter for the Eventplane determination in TPC
5720c765	171	Bool_t fLikeSignSubEvents; //Option for dividing into subevents, sub1 ++ sub2 --
554e40f8	172	Bool_t fPreFilterUnlikeOnly; //Apply PreFilter either in +- or to ++/--/+- individually
5720c765	173	Bool_t fPreFilterAllSigns; //Apply PreFilter find in ++/--/+- and remove from all
fb7d2d99	174	Bool_t fHasMC; //If we run with MC, at the moment only needed in AOD
2e02dba4	175	Bool_t fStoreRotatedPairs; //It the rotated pairs should be stored in the pair array
	176	Bool_t fDontClearArrays; //Don't clear the arrays at the end of the Process function, needed for external use of pair and tracks
	177
b2a297fa	178	void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0);
5720c765	179	void EventPlanePreFilter(Int_t arr1, Int_t arr2, TObjArray arrTracks1, TObjArray arrTracks2, const AliVEvent ev, AliEventplane cevplane);
61d106d3	180	void PairPreFilter(Int_t arr1, Int_t arr2, TObjArray &arrTracks1, TObjArray &arrTracks2);
b2a297fa	181	void FillPairArrays(Int_t arr1, Int_t arr2);
2a14a7b1	182	void FillPairArrayTR();
b2a297fa	183
	184	Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1(arr1+1)/2+arr2:arr2(arr2+1)/2+arr1;}
	185
	186	void InitPairCandidateArrays();
	187	void ClearArrays();
	188
	189	TObjArray* PairArray(Int_t i);
	190
	191	static const char* fgkTrackClassNames[4]; //Names for track arrays
2a14a7b1	192	static const char* fgkPairClassNames[11]; //Names for pair arrays
b2a297fa	193
5720c765	194	TString fEstimatorFilename; // name for the pp multiplicity estimators filename
5720c765	195	TString fTRDpidCorrectionFilename; // name for the file containing the single particle TRD pid corrections
a823f01b	196	TString fVZEROCalibrationFilename; // file containing VZERO channel-by-channel calibration
a823f01b	197	TString fVZERORecenteringFilename; // file containing VZERO Q-vector recentering averages
5720c765	198
5720c765	199	void ProcessMC(AliVEvent *ev1);
b2a297fa	200
c315310a	201	void FillHistograms(const AliVEvent *ev, Bool_t pairInfoOnly=kFALSE);
f0351f9c	202	void FillMCHistograms(const AliVEvent *ev);
5720c765	203	void FillHistogramsMC(const AliMCEvent ev, AliVEvent ev1);
ffbede40	204	void FillHistogramsPair(AliDielectronPair *pair,Bool_t fromPreFilter=kFALSE);
554e40f8	205	void FillHistogramsTracks(TObjArray **tracks);
554e40f8	206
572b0139	207	void FillDebugTree();
5720c765	208
b2a297fa	209	AliDielectron(const AliDielectron &c);
	210	AliDielectron &operator=(const AliDielectron &c);
	211
2e02dba4	212	ClassDef(AliDielectron,5);
b2a297fa	213	};
	214
	215	inline void AliDielectron::InitPairCandidateArrays()
	216	{
	217	//
	218	// initialise all pair candidate arrays
	219	//
	220	fPairCandidates->SetOwner();
5720c765	221	for (Int_t i=0;i<11;++i){
b2a297fa	222	TObjArray *arr=new TObjArray;
	223	fPairCandidates->AddAt(arr,i);
	224	arr->SetOwner();
	225	}
	226	}
	227
	228	inline TObjArray* AliDielectron::PairArray(Int_t i)
	229	{
	230	//
	231	// for internal use only: unchecked return of track array for fast access
	232	//
	233	return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i));
	234	}
	235
	236	inline void AliDielectron::ClearArrays()
	237	{
	238	//
	239	// Reset the Arrays
	240	//
	241	for (Int_t i=0;i<4;++i){
	242	fTracks[i].Clear();
	243	}
5720c765	244	for (Int_t i=0;i<11;++i){
5720c765	245	if (PairArray(i)) PairArray(i)->Delete();
b2a297fa	246	}
	247	}
	248
	249	#endif