1 #ifndef ALIANAPARTICLEHADRONCORRELATION_H
2 #define ALIANAPARTICLEHADRONCORRELATION_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
7 //_________________________________________________________________________
8 // Class that contains the algorithm for the analysis of particle - hadron correlations
9 // Particle (for example direct gamma) must be found in a previous analysis
10 //-- Author: Gustavo Conesa (INFN-LNF)
12 // Modified by Yaxian Mao:
13 // 1. add the UE subtraction for corrlation study
14 // 2. change the correlation variable
15 // 3. Only use leading particle(cluster/track) as trigger for correlation (2010/07/02)
16 // 4. Make decay photon-hadron correlations where decay contribute pi0 mass (2010/09/09)
18 // --- ROOT system ---
21 // --- Analysis system ---
22 #include "AliAnaPartCorrBaseClass.h"
23 class AliAODPWG4ParticleCorrelation ;
25 class AliAnaParticleHadronCorrelation : public AliAnaPartCorrBaseClass {
28 AliAnaParticleHadronCorrelation() ; // default ctor
29 virtual ~AliAnaParticleHadronCorrelation() {;} //virtual dtor
31 AliAnaParticleHadronCorrelation(const AliAnaParticleHadronCorrelation & ph) ; // cpy ctor
32 AliAnaParticleHadronCorrelation & operator = (const AliAnaParticleHadronCorrelation & ph) ;//cpy assignment
36 TObjString * GetAnalysisCuts();
37 TList * GetCreateOutputObjects();
39 Double_t GetDeltaPhiMaxCut() const {return fDeltaPhiMaxCut ; }
40 Double_t GetDeltaPhiMinCut() const {return fDeltaPhiMinCut ; }
41 void SetDeltaPhiCutRange(Double_t phimin, Double_t phimax)
42 {fDeltaPhiMaxCut =phimax; fDeltaPhiMinCut =phimin;}
44 Double_t GetUeDeltaPhiMaxCut() const {return fUeDeltaPhiMaxCut ; }
45 Double_t GetUeDeltaPhiMinCut() const {return fUeDeltaPhiMinCut ; }
46 void SetUeDeltaPhiCutRange(Double_t uephimin, Double_t uephimax)
47 {fUeDeltaPhiMaxCut =uephimax; fUeDeltaPhiMinCut =uephimin;}
48 Bool_t IsSeveralUEOn() const {return fMakeSeveralUE ; }
49 void SwitchOnSeveralUECalculation() { fMakeSeveralUE = kTRUE;}
50 void SwitchOffSeveralUECalculation() { fMakeSeveralUE = kFALSE;}
52 // Do decay-hadron correlation if it is pi0 trigger
53 Bool_t IsPi0Trigger() const {return fPi0Trigger ; }
54 void SwitchOnDecayCorr() { fPi0Trigger = kTRUE;}
55 void SwitchOffDecayCorr() { fPi0Trigger = kFALSE;}
57 Bool_t OnlyIsolated() const {return fSelectIsolated ; }
58 void SelectIsolated(Bool_t select) {fSelectIsolated = select ; }
60 void InitParameters();
62 void Print(const Option_t * opt) const;
64 void MakeChargedCorrelation(AliAODPWG4ParticleCorrelation * aodParticle,TObjArray* const pl, const Bool_t bFillHisto) ;
65 void MakeNeutralCorrelation(AliAODPWG4ParticleCorrelation * aodParticle,TObjArray* const pl, const Bool_t bFillHisto) ;
67 //void MakeNeutralCorrelationFillAOD(AliAODPWG4ParticleCorrelation* const aodParticle, TObjArray* const pl, TString detector) ;
68 //void MakeNeutralCorrelationFillHistograms(AliAODPWG4ParticleCorrelation* const aodParticle) ;
70 void MakeAnalysisFillAOD() ;
71 void MakeAnalysisFillHistograms() ;
73 //Bool_t SelectCluster(AliVCluster * calo, Double_t *vertex, TLorentzVector & mom, Int_t & pdg) ;
75 void SetPi0AODBranchName(TString pi0list) {fPi0AODBranchName = pi0list;}
79 Double_t fDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Hadron
80 Double_t fDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Hadron
81 Bool_t fSelectIsolated ; // Select only trigger particles isolated
82 Bool_t fMakeSeveralUE ; // Do analysis for several underlying events contribution
83 Double_t fUeDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Underlying Hadron
84 Double_t fUeDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Underlying Hadron
85 TString fPi0AODBranchName; // Name of AOD branch with pi0, not trigger
86 Bool_t fPi0Trigger ; // Do analysis with decay photon from pi0 trigger
90 TH1F * fhPtLeading; //! pT distribution of leading particles
91 TH2F * fhPhiLeading; //! phi distribution vs pT of leading particles
92 TH2F * fhEtaLeading; //! eta distribution vs pT of leading particles
93 TH2F * fhDeltaPhiDeltaEtaCharged ; //! differences of eta and phi between trigger and charged hadrons
94 TH2F * fhDeltaPhiDeltaEtaNeutral ; //! differences of eta and phi between trigger and neutral hadrons (pi0)
96 TH2F * fhPhiCharged ; //! Phi distribution of charged particles
97 TH2F * fhPhiNeutral ; //! Phi distribution of neutral particles
98 TH2F * fhEtaCharged ; //! Eta distribution of charged particles
99 TH2F * fhEtaNeutral ; //! Eta distribution of neutral particles
100 TH2F * fhDeltaPhiCharged ; //! Difference of charged particle phi and trigger particle phi as function of trigger particle pT
101 TH2F * fhDeltaPhiNeutral ; //! Difference of neutral particle phi and trigger particle phi as function of trigger particle pT
102 TH2F * fhDeltaEtaCharged ; //! Difference of charged particle eta and trigger particle eta as function of trigger particle pT
103 TH2F * fhDeltaEtaNeutral ; //! Difference of neutral particle eta and trigger particle eta as function of trigger particle pT
104 TH2F * fhDeltaPhiChargedPt ; //! Difference of charged particle phi and trigger particle phi as function of charged particle pT
105 TH2F * fhDeltaPhiNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
106 TH2F * fhDeltaPhiUeChargedPt ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
107 TH2F * fhDeltaPhiUeNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
109 TH2F * fhPtImbalanceNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
110 TH2F * fhPtImbalanceCharged ; //! Trigger particle -charged hadron momentim imbalance histogram
111 TH2F * fhPtImbalanceUeCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
112 TH2F * fhPtImbalanceUeNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
114 //with different imblance varible defination HBP distribution
115 TH2F * fhPtHbpCharged ; //! Trigger particle -charged hadron momentim HBP histogram
116 TH2F * fhPtHbpUeCharged ; //! Trigger particle -underlying charged hadron momentim HBP histogram
117 TH2F * fhPtHbpNeutral ; //! Trigger particle -neutral particle momentim HBP histogram
118 TH2F * fhPtHbpUeNeutral ; //! Trigger particle -underlying neutral hadron momentim HBP histogram
120 //if several UE calculation is on, most useful for jet-jet events contribution
121 TH2F * fhDeltaPhiUeLeftCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
122 TH2F * fhDeltaPhiUeRightCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi
123 TH2F * fhDeltaPhiUeLeftNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of neutral particle pT
124 TH2F * fhDeltaPhiUeRightNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi
125 TH2F * fhPtImbalanceUeLeftCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
126 TH2F * fhPtImbalanceUeRightCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
127 TH2F * fhPtImbalanceUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram
128 TH2F * fhPtImbalanceUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram
129 TH2F * fhPtHbpUeLeftCharged ; //! Trigger particle -underlying charged hadron momentim HBP histogram
130 TH2F * fhPtHbpUeRightCharged ; //! Trigger particle -underlying charged hadron momentim HBP histogram
131 TH2F * fhPtHbpUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentim HBP histogram
132 TH2F * fhPtHbpUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentim HBP histogram
134 //for decay photon trigger correlation
135 TH3D * fhPtPi0DecayRatio ; //! for pi0 pt and ratio of decay photon pt
136 TH2F * fhDeltaPhiDecay1Charged ; //! Difference of charged particle phi and decay trigger
137 TH2F * fhDeltaPhiDecay2Charged ; //! Difference of charged particle phi and decay trigger
138 TH2F * fhPtImbalanceDecay1Charged ; //! Trigger particle (decay 1 from pi0)-charged hadron momentim imbalance histogram
139 TH2F * fhPtImbalanceDecay2Charged ; //! Trigger particle (decay 2 from pi0) -charged hadron momentim imbalance histogram
141 TH2F * fhDeltaPhiDecay1Neutral ; //! Difference of neutral particle phi and decay trigger
142 TH2F * fhDeltaPhiDecay2Neutral ; //! Difference of neutral particle phi and decay trigger
143 TH2F * fhPtImbalanceDecay1Neutral ; //! Trigger particle (decay 1 from pi0)-neutral hadron momentim imbalance histogram
144 TH2F * fhPtImbalanceDecay2Neutral ; //! Trigger particle (decay 2 from pi0) -neutral hadron momentim imbalance histogram
146 ClassDef(AliAnaParticleHadronCorrelation,4)
150 #endif //ALIANAPARTICLEHADRONCORRELATION_H