[u/mrichter/AliRoot.git] / PWGHF / correlationHF / AliHFCorrelator.h

#ifndef AliHFCorrelator_H
#define AliHFCorrelator_H

/**************************************************************************
 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

//
//             Base class for Heavy Flavour Correlations Analysis
//             Single Event and Mixed Event Analysis are implemented
//-----------------------------------------------------------------------
//          
//
//						   Author S.Bjelogrlic
//                         Utrecht University 
//                      sandro.bjelogrlic@cern.ch
//
//-----------------------------------------------------------------------

/* $Id: AliHFCorrelator.h 63605 2013-07-19 13:08:41Z arossi $ */

#include "AliHFAssociatedTrackCuts.h"
#include "AliEventPoolManager.h"
#include "AliVParticle.h"
#include "AliReducedParticle.h"
#include "AliVertexingHFUtils.h"
#include "AliRDHFCuts.h"


class AliHFCorrelator : public TNamed
{
	
 public:
	
	AliHFCorrelator();
	AliHFCorrelator(const Char_t* name, AliHFAssociatedTrackCuts *cuts, Bool_t useCentrality);
    AliHFCorrelator(const Char_t* name, AliHFAssociatedTrackCuts *cuts, Bool_t useCentrality, AliRDHFCuts *cutObject);
	virtual ~AliHFCorrelator();
	
	// enum for setting which associated particle type to work with
	enum{
	  kUndefined=0,
	  kHadron=1,
	  kKaon,
	  kKZero,
	  kElectron
	};

	//setters
	void SetDeltaPhiInterval (Double_t min, Double_t max){
		fPhiMin = min; fPhiMax = max;
		if(TMath::Abs(fPhiMin-fPhiMax) != 2*TMath::Pi()) AliInfo("AliHFCorrelator::Warning: the delta phi interval is not set to 2 Pi");
	}
    void SetDMesonCutObject(AliRDHFCuts* cutObject){
        if(fDMesonCutObject) delete fDMesonCutObject;
       
        fDMesonCutObject = cutObject;
         if(!fDMesonCutObject) printf("AliHFCorrelator::warning! D meson object not implemented correctly!");
    }
	void SetEventMixing(Bool_t mixON){fmixing=mixON;}
	void SetTriggerParticleProperties(Double_t ptTrig, Double_t phiTrig, Double_t etaTrig)
	{fPtTrigger = ptTrig; fPhiTrigger = phiTrig; fEtaTrigger = etaTrig;}
	void SetTriggerParticleDaughterCharge(Short_t charge) {fDCharge=charge;}
	
	
	void SetAssociatedParticleType(Int_t type){fselect = type;}
	void SetAODEvent(AliAODEvent* inputevent){fAODEvent = inputevent;}
	void SetMCArray(TClonesArray* mcArray){fmcArray = mcArray;}
	void SetUseMC(Bool_t useMC){fmontecarlo = useMC;}
	void SetApplyDisplacementCut(Int_t applycut){fUseImpactParameter = applycut;}
	void SetPIDmode(Int_t mode){fPIDmode = mode;}
	
	void SetD0Properties(AliAODRecoDecayHF2Prong* d, Int_t D0hyp)
	{fD0cand = d; fhypD0 = D0hyp;}
	
	void SetUseReco(Bool_t useReco) {fUseReco = useReco;}
	
	
        Bool_t DefineEventPool(); // Definition of the Event pool parameters
	Bool_t Initialize(); // function that initlize everything for the analysis	
	Bool_t ProcessEventPool(); // processes the event pool
	Bool_t ProcessAssociatedTracks(Int_t EventLoopIndex, const TObjArray* associatedTracks=NULL); //
	Bool_t Correlate(Int_t loopindex); // function that computes the correlations between the trigger particle and the track n. loopindex
	Bool_t PoolUpdate(const TObjArray* associatedTracks=NULL);// updates the event pool
	Double_t SetCorrectPhiRange(Double_t phi); // sets all the angles in the correct range
	void SetPidAssociated() {fhadcuts->SetPidAssociated();}

	//getters
	AliEventPool* GetPool() {return fPool;}
	TObjArray * GetTrackArray(){return fAssociatedTracks;}
	AliHFAssociatedTrackCuts* GetSelectionCuts() {return fhadcuts;}
	AliReducedParticle* GetAssociatedParticle() {return fReducedPart;}
    
    AliRDHFCuts*  GetDMesonCutObject(){return fDMesonCutObject;}
	
	Int_t GetNofTracks(){return fNofTracks;}
	Int_t GetNofEventsInPool(){return fPoolContent;}

	Double_t GetDeltaPhi(){return fDeltaPhi;} // Delta Phi, needs to be called after the method correlate 
	Double_t GetDeltaEta(){return fDeltaEta;} // Delta Eta
    Double_t GetCentrality(){return fMultCentr;} // centrality or multiplicity
	
	Double_t GetAssociatedKZeroInvariantmass(){return fk0InvMass;}
	
	
	// methods to reduce the tracks to correlate with track selection cuts applied here
	TObjArray*  AcceptAndReduceTracks(AliAODEvent* inputEvent); // selecting hadrons and kaons
	TObjArray*  AcceptAndReduceKZero(AliAODEvent* inputEvent); // selecting kzeros
	
	
 private:

	AliHFCorrelator(const AliHFCorrelator& vtxr);
	AliHFCorrelator& operator=(const AliHFCorrelator& vtxr );

	AliEventPoolManager* fPoolMgr;         //! event pool manager
	AliEventPool * fPool; //! Pool for event mixing
	AliHFAssociatedTrackCuts* fhadcuts;//! hadron cuts
	AliAODEvent * fAODEvent;//! AOD Event
    AliRDHFCuts * fDMesonCutObject; //! D meson cut object
	TObjArray* fAssociatedTracks; // Array of associated tracks
	TClonesArray* fmcArray; //mcarray
	AliReducedParticle * fReducedPart; // reduced AOD particle;
	AliAODRecoDecayHF2Prong* fD0cand; //D0 candidate
	Int_t fhypD0; //hypothesis necessary for
	Int_t fDCharge; // charge of a daughter of the D meson
	
	Bool_t fmixing;// switch for event mixing
	Bool_t fmontecarlo; // switch for MonteCarlo
	Bool_t fUseCentrality; // select between multiplicity (kFALSE) or centrality (kTRUE)
	Bool_t fUseReco; // switch to use reconstruction (kTRUE) or MC truth (kFALSE)
	
	Int_t fselect; // 1 for hadrons, 2 for kaons, 3 for KZeros
	Int_t fUseImpactParameter; // switch to use the impact parameter cut
	Int_t fPIDmode; // set the PID mode for Kaon identification
	
	Int_t fNofTracks; // number of tracks in track array
	Int_t fPoolContent; //  n of events in pool
	
	Double_t fPhiMin; // min for phi
	Double_t fPhiMax; // max for phi
    
    Double_t fMultCentr; // multiplicty/centrality for the event
	
	Double_t fPtTrigger; // pt of the trigger D meson
	Double_t fPhiTrigger; // phi of the trigger D meson
	Double_t fEtaTrigger; // Eta of the trigger D meson

	
	Double_t fDeltaPhi; // delta phi between D meson and associated track
	Double_t fDeltaEta; // delta eta between D meson and associated track
	
	Double_t fk0InvMass; // KZero invariant mass
	
	
	ClassDef(AliHFCorrelator,4); // class for HF correlations
};


#endif
Commit	Line	Data
c683985a	1	#ifndef AliHFCorrelator_H
	2	#define AliHFCorrelator_H
	3
	4	/**************************************************************************
	5	* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
	6	* *
	7	* Author: The ALICE Off-line Project. *
	8	* Contributors are mentioned in the code where appropriate. *
	9	* *
	10	* Permission to use, copy, modify and distribute this software and its *
	11	* documentation strictly for non-commercial purposes is hereby granted *
	12	* without fee, provided that the above copyright notice appears in all *
	13	* copies and that both the copyright notice and this permission notice *
	14	* appear in the supporting documentation. The authors make no claims *
	15	* about the suitability of this software for any purpose. It is *
	16	* provided "as is" without express or implied warranty. *
	17	**************************************************************************/
	18
	19	//
	20	// Base class for Heavy Flavour Correlations Analysis
	21	// Single Event and Mixed Event Analysis are implemented
	22	//-----------------------------------------------------------------------
	23	//
	24	//
	25	// Author S.Bjelogrlic
	26	// Utrecht University
	27	// sandro.bjelogrlic@cern.ch
	28	//
	29	//-----------------------------------------------------------------------
	30
1b8b4a2c	31	/* $Id: AliHFCorrelator.h 63605 2013-07-19 13:08:41Z arossi $ */
c683985a	32
	33	#include "AliHFAssociatedTrackCuts.h"
	34	#include "AliEventPoolManager.h"
	35	#include "AliVParticle.h"
	36	#include "AliReducedParticle.h"
	37	#include "AliVertexingHFUtils.h"
1b8b4a2c	38	#include "AliRDHFCuts.h"
c683985a	39
	40
	41	class AliHFCorrelator : public TNamed
	42	{
	43
	44	public:
	45
	46	AliHFCorrelator();
1b8b4a2c EB	47	AliHFCorrelator(const Char_t* name, AliHFAssociatedTrackCuts *cuts, Bool_t useCentrality);
1b8b4a2c EB	48	AliHFCorrelator(const Char_t* name, AliHFAssociatedTrackCuts cuts, Bool_t useCentrality, AliRDHFCuts cutObject);
c683985a	49	virtual ~AliHFCorrelator();
	50
	51	// enum for setting which associated particle type to work with
	52	enum{
	53	kUndefined=0,
	54	kHadron=1,
	55	kKaon,
	56	kKZero,
	57	kElectron
	58	};
	59
	60	//setters
	61	void SetDeltaPhiInterval (Double_t min, Double_t max){
	62	fPhiMin = min; fPhiMax = max;
	63	if(TMath::Abs(fPhiMin-fPhiMax) != 2*TMath::Pi()) AliInfo("AliHFCorrelator::Warning: the delta phi interval is not set to 2 Pi");
	64	}
1b8b4a2c EB	65	void SetDMesonCutObject(AliRDHFCuts* cutObject){
	66	if(fDMesonCutObject) delete fDMesonCutObject;
	67
	68	fDMesonCutObject = cutObject;
	69	if(!fDMesonCutObject) printf("AliHFCorrelator::warning! D meson object not implemented correctly!");
	70	}
c683985a	71	void SetEventMixing(Bool_t mixON){fmixing=mixON;}
	72	void SetTriggerParticleProperties(Double_t ptTrig, Double_t phiTrig, Double_t etaTrig)
	73	{fPtTrigger = ptTrig; fPhiTrigger = phiTrig; fEtaTrigger = etaTrig;}
	74	void SetTriggerParticleDaughterCharge(Short_t charge) {fDCharge=charge;}
	75
	76
	77	void SetAssociatedParticleType(Int_t type){fselect = type;}
	78	void SetAODEvent(AliAODEvent* inputevent){fAODEvent = inputevent;}
	79	void SetMCArray(TClonesArray* mcArray){fmcArray = mcArray;}
	80	void SetUseMC(Bool_t useMC){fmontecarlo = useMC;}
	81	void SetApplyDisplacementCut(Int_t applycut){fUseImpactParameter = applycut;}
	82	void SetPIDmode(Int_t mode){fPIDmode = mode;}
	83
	84	void SetD0Properties(AliAODRecoDecayHF2Prong* d, Int_t D0hyp)
	85	{fD0cand = d; fhypD0 = D0hyp;}
	86
	87	void SetUseReco(Bool_t useReco) {fUseReco = useReco;}
	88
	89
	90
	91	Bool_t DefineEventPool(); // Definition of the Event pool parameters
	92	Bool_t Initialize(); // function that initlize everything for the analysis
	93	Bool_t ProcessEventPool(); // processes the event pool
	94	Bool_t ProcessAssociatedTracks(Int_t EventLoopIndex, const TObjArray* associatedTracks=NULL); //
	95	Bool_t Correlate(Int_t loopindex); // function that computes the correlations between the trigger particle and the track n. loopindex
	96	Bool_t PoolUpdate(const TObjArray* associatedTracks=NULL);// updates the event pool
	97	Double_t SetCorrectPhiRange(Double_t phi); // sets all the angles in the correct range
	98	void SetPidAssociated() {fhadcuts->SetPidAssociated();}
	99
	100	//getters
	101	AliEventPool* GetPool() {return fPool;}
	102	TObjArray * GetTrackArray(){return fAssociatedTracks;}
	103	AliHFAssociatedTrackCuts* GetSelectionCuts() {return fhadcuts;}
	104	AliReducedParticle* GetAssociatedParticle() {return fReducedPart;}
1b8b4a2c EB	105
1b8b4a2c EB	106	AliRDHFCuts* GetDMesonCutObject(){return fDMesonCutObject;}
c683985a	107
	108	Int_t GetNofTracks(){return fNofTracks;}
	109	Int_t GetNofEventsInPool(){return fPoolContent;}
	110
	111	Double_t GetDeltaPhi(){return fDeltaPhi;} // Delta Phi, needs to be called after the method correlate
	112	Double_t GetDeltaEta(){return fDeltaEta;} // Delta Eta
1b8b4a2c	113	Double_t GetCentrality(){return fMultCentr;} // centrality or multiplicity
c683985a	114
	115	Double_t GetAssociatedKZeroInvariantmass(){return fk0InvMass;}
	116
	117
	118
	119	// methods to reduce the tracks to correlate with track selection cuts applied here
	120	TObjArray* AcceptAndReduceTracks(AliAODEvent* inputEvent); // selecting hadrons and kaons
	121	TObjArray* AcceptAndReduceKZero(AliAODEvent* inputEvent); // selecting kzeros
	122
	123
	124	private:
	125
	126	AliHFCorrelator(const AliHFCorrelator& vtxr);
	127	AliHFCorrelator& operator=(const AliHFCorrelator& vtxr );
	128
	129	AliEventPoolManager* fPoolMgr; //! event pool manager
	130	AliEventPool * fPool; //! Pool for event mixing
	131	AliHFAssociatedTrackCuts* fhadcuts;//! hadron cuts
	132	AliAODEvent * fAODEvent;//! AOD Event
1b8b4a2c	133	AliRDHFCuts * fDMesonCutObject; //! D meson cut object
c683985a	134	TObjArray* fAssociatedTracks; // Array of associated tracks
	135	TClonesArray* fmcArray; //mcarray
	136	AliReducedParticle * fReducedPart; // reduced AOD particle;
	137	AliAODRecoDecayHF2Prong* fD0cand; //D0 candidate
	138	Int_t fhypD0; //hypothesis necessary for
	139	Int_t fDCharge; // charge of a daughter of the D meson
	140
	141	Bool_t fmixing;// switch for event mixing
	142	Bool_t fmontecarlo; // switch for MonteCarlo
1b8b4a2c	143	Bool_t fUseCentrality; // select between multiplicity (kFALSE) or centrality (kTRUE)
c683985a	144	Bool_t fUseReco; // switch to use reconstruction (kTRUE) or MC truth (kFALSE)
	145
	146	Int_t fselect; // 1 for hadrons, 2 for kaons, 3 for KZeros
	147	Int_t fUseImpactParameter; // switch to use the impact parameter cut
	148	Int_t fPIDmode; // set the PID mode for Kaon identification
	149
	150	Int_t fNofTracks; // number of tracks in track array
	151	Int_t fPoolContent; // n of events in pool
	152
	153	Double_t fPhiMin; // min for phi
	154	Double_t fPhiMax; // max for phi
1b8b4a2c EB	155
1b8b4a2c EB	156	Double_t fMultCentr; // multiplicty/centrality for the event
c683985a	157
	158	Double_t fPtTrigger; // pt of the trigger D meson
	159	Double_t fPhiTrigger; // phi of the trigger D meson
	160	Double_t fEtaTrigger; // Eta of the trigger D meson
	161
	162
	163	Double_t fDeltaPhi; // delta phi between D meson and associated track
	164	Double_t fDeltaEta; // delta eta between D meson and associated track
	165
	166	Double_t fk0InvMass; // KZero invariant mass
	167
	168
1b8b4a2c	169	ClassDef(AliHFCorrelator,4); // class for HF correlations
c683985a	170	};
	171
	172
	173
	174
	175
	176	#endif