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[u/mrichter/AliRoot.git] / PWGGA / CaloTrackCorrelations / AliAnaParticleHadronCorrelation.h
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045396c8 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 */
045396c8 5
6//_________________________________________________________________________
7// Class that contains the algorithm for the analysis of particle - hadron correlations
8// Particle (for example direct gamma) must be found in a previous analysis
9//-- Author: Gustavo Conesa (INFN-LNF)
10
11// Modified by Yaxian Mao:
12// 1. add the UE subtraction for corrlation study
13// 2. change the correlation variable
14// 3. Only use leading particle(cluster/track) as trigger for correlation (2010/07/02)
15// 4. Make decay photon-hadron correlations where decay contribute pi0 mass (2010/09/09)
16// 5. fill the pout to extract kt at the end, also to study charge asymmetry(2010/10/06)
17// 6. Add the possibility for event selection analysis based on vertex and multiplicity bins (10/10/2010)
18// 7. change the way of delta phi cut for UE study due to memory issue (reduce histograms)
19// 8. Add the possibility to request the absolute leading particle at the near side or not, set trigger bins, general clean-up (08/2011)
20
21// --- ROOT system ---
22//class TH3D;
23
24// --- Analysis system ---
745913ae 25#include "AliAnaCaloTrackCorrBaseClass.h"
045396c8 26class AliAODPWG4ParticleCorrelation ;
27
745913ae 28class AliAnaParticleHadronCorrelation : public AliAnaCaloTrackCorrBaseClass {
045396c8 29
30 public:
c5693f62 31
045396c8 32 AliAnaParticleHadronCorrelation() ; // default ctor
33 virtual ~AliAnaParticleHadronCorrelation() {;} //virtual dtor
045396c8 34
35 // General methods
04f7a616 36
045396c8 37 TObjString * GetAnalysisCuts();
38
39 TList * GetCreateOutputObjects();
40
41 void InitParameters();
42
43 void MakeAnalysisFillAOD() ;
44
45 void MakeAnalysisFillHistograms() ;
46
47 void Print(const Option_t * opt) const;
48
49 // Main analysis methods
50
c5693f62 51 Bool_t MakeChargedCorrelation (AliAODPWG4ParticleCorrelation * aodParticle, const TObjArray* pl, const Bool_t bFillHisto) ;
045396c8 52
c5693f62 53 Bool_t MakeNeutralCorrelation (AliAODPWG4ParticleCorrelation * aodParticle, const TObjArray* pl, const Bool_t bFillHisto) ;
045396c8 54
66e64043 55 void MakeMCChargedCorrelation(AliAODPWG4ParticleCorrelation * aodParticle);
045396c8 56
57
58 // Parameter setter and getter
59
66e64043 60 Float_t GetMinimumTriggerPt() const { return fMinTriggerPt ; }
61
62 Float_t GetMaximumAssociatedPt() const { return fMaxAssocPt ; }
63 Float_t GetMinimumAssociatedPt() const { return fMinAssocPt ; }
64
045396c8 65 Double_t GetDeltaPhiMaxCut() const { return fDeltaPhiMaxCut ; }
66 Double_t GetDeltaPhiMinCut() const { return fDeltaPhiMinCut ; }
66e64043 67
045396c8 68 Double_t GetUeDeltaPhiMaxCut() const { return fUeDeltaPhiMaxCut ; }
69 Double_t GetUeDeltaPhiMinCut() const { return fUeDeltaPhiMinCut ; }
70
66e64043 71 void SetMinimumTriggerPt(Float_t min){ fMinTriggerPt = min ; }
72
73 void SetAssociatedPtRange(Float_t min, Float_t max)
74 { fMaxAssocPt = max ; fMinAssocPt = min ; }
75
045396c8 76 void SetDeltaPhiCutRange(Double_t phimin, Double_t phimax)
77 { fDeltaPhiMaxCut = phimax ; fDeltaPhiMinCut = phimin ; }
66e64043 78
045396c8 79 void SetUeDeltaPhiCutRange(Double_t uephimin, Double_t uephimax)
80 { fUeDeltaPhiMaxCut = uephimax; fUeDeltaPhiMinCut = uephimin ; }
81
82 Bool_t IsSeveralUEOn() const { return fMakeSeveralUE ; }
83 void SwitchOnSeveralUECalculation() { fMakeSeveralUE = kTRUE ; }
84 void SwitchOffSeveralUECalculation() { fMakeSeveralUE = kFALSE ; }
85
86 // Do trigger-neutral correlation
87 Bool_t DoNeutralCorr() const { return fNeutralCorr ; }
88 void SwitchOnNeutralCorr() { fNeutralCorr = kTRUE ; }
89 void SwitchOffNeutralCorr() { fNeutralCorr = kFALSE ; }
90
91 // Taking the absolute leading as the trigger or not
92 Bool_t DoAbsoluteLeading() const { return fMakeAbsoluteLeading ; }
93 void SwitchOnAbsoluteLeading() { fMakeAbsoluteLeading = kTRUE ; }
94 void SwitchOffAbsoluteLeading() { fMakeAbsoluteLeading = kFALSE ; }
95
3f150b4b 96 // Taking the near side leading as the trigger or not
97 Bool_t DoNearSideLeading() const { return fMakeNearSideLeading ; }
98 void SwitchOnNearSideLeading() { fMakeNearSideLeading = kTRUE ; }
99 void SwitchOffNearSideLeading() { fMakeNearSideLeading = kFALSE ; }
100
045396c8 101 // Do decay-hadron correlation if it is pi0 trigger
102 Bool_t IsPi0Trigger() const { return fPi0Trigger ; }
103 void SwitchOnDecayCorr() { fPi0Trigger = kTRUE ; }
104 void SwitchOffDecayCorr() { fPi0Trigger = kFALSE ; }
105
106 Bool_t OnlyIsolated() const { return fSelectIsolated ; }
107 void SelectIsolated(Bool_t s) { fSelectIsolated = s ; }
108
109 void SetPi0AODBranchName(TString n) { fPi0AODBranchName = n ; }
110
05d0d05d 111 void SetNAssocPtBins(Int_t n) ;
112 void SetAssocPtBinLimit(Int_t ibin, Float_t pt) ;
045396c8 113
114 private:
66e64043 115 Float_t fMinTriggerPt ; // Minimum trigger hadron pt
116 Float_t fMaxAssocPt ; // Maximum associated hadron pt
117 Float_t fMinAssocPt ; // Minimum associated hadron pt
045396c8 118 Double_t fDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Hadron
119 Double_t fDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Hadron
120 Bool_t fSelectIsolated ; // Select only trigger particles isolated
121 Bool_t fMakeSeveralUE ; // Do analysis for several underlying events contribution
122 Double_t fUeDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Underlying Hadron
123 Double_t fUeDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Underlying Hadron
124 TString fPi0AODBranchName; // Name of AOD branch with pi0, not trigger
125 Bool_t fNeutralCorr ; // switch the analysis with neutral particles
126 Bool_t fPi0Trigger ; // switch the analysis with decay photon from pi0 trigger
3f150b4b 127 Bool_t fMakeAbsoluteLeading ; // requesting absolute leading triggers
128 Bool_t fMakeNearSideLeading ; // requesting near side leading (+-90ยบ from trigger particle) triggers
045396c8 129 Int_t fLeadingTriggerIndex ; // Store here per event the trigger index, to avoid too many loops
130
05d0d05d 131 Int_t fNAssocPtBins ; // Number of associated pT bins under study
132 Float_t fAssocPtBinLimit[10] ; // Associated pT under study
045396c8 133
134 //Histograms
135
136 //leading particles
137 TH1F * fhPtLeading; //! pT distribution of leading particles
138 TH2F * fhPhiLeading; //! phi distribution vs pT of leading particles
139 TH2F * fhEtaLeading; //! eta distribution vs pT of leading particles
140
141 //trigger-charged histograms
142 TH2F * fhDeltaPhiDeltaEtaCharged ; //! differences of eta and phi between trigger and charged hadrons
143 TH2F * fhPhiCharged ; //! Phi distribution of charged particles
144 TH2F * fhEtaCharged ; //! Eta distribution of charged particles
145 TH2F * fhDeltaPhiCharged ; //! Difference of charged particle phi and trigger particle phi as function of trigger particle pT
146 TH2F * fhDeltaEtaCharged ; //! Difference of charged particle eta and trigger particle eta as function of trigger particle pT
147 TH2F * fhDeltaPhiChargedPt ; //! Difference of charged particle phi and trigger particle phi as function of charged particle pT
148 TH2F * fhDeltaPhiUeChargedPt ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
3f150b4b 149 TH2F * fhXECharged ; //! Trigger particle -charged hadron momentum imbalance histogram
150 TH2F * fhXEUeCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
151 TH2F * fhXEPosCharged ; //! Trigger particle -positive charged hadron momentum imbalance histogram
152 TH2F * fhXENegCharged ; //! Trigger particle -negative charged hadron momentum imbalance histogram
153 TH2F * fhPtHbpXECharged ; //! Trigger particle -charged hadron momentum HBP histogram
154 TH2F * fhPtHbpXEUeCharged ; //! Trigger particle -underlying charged hadron momentum HBP histogram
155 TH2F * fhZTCharged ; //! Trigger particle -charged hadron momentum imbalance histogram
156 TH2F * fhZTUeCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
157 TH2F * fhZTPosCharged ; //! Trigger particle -positive charged hadron momentum imbalance histogram
158 TH2F * fhZTNegCharged ; //! Trigger particle -negative charged hadron momentum imbalance histogram
159 TH2F * fhPtHbpZTCharged ; //! Trigger particle -charged hadron momentum HBP histogram
160 TH2F * fhPtHbpZTUeCharged ; //! Trigger particle -underlying charged hadron momentum HBP histogram
161
045396c8 162 //if several UE calculation is on, most useful for jet-jet events contribution
163 TH2F * fhDeltaPhiUeLeftCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
164 TH2F * fhDeltaPhiUeRightCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi
3f150b4b 165 TH2F * fhXEUeLeftCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
166 TH2F * fhXEUeRightCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
167 TH2F * fhPtHbpXEUeLeftCharged ; //! Trigger particle -underlying charged hadron momentum HBP histogram
168 TH2F * fhPtHbpXEUeRightCharged ; //! Trigger particle -underlying charged hadron momentum HBP histogram
169 TH2F * fhZTUeLeftCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
170 TH2F * fhZTUeRightCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
171 TH2F * fhPtHbpZTUeLeftCharged ; //! Trigger particle -underlying charged hadron momentum HBP histogram
172 TH2F * fhPtHbpZTUeRightCharged ; //! Trigger particle -underlying charged hadron momentum HBP histogram
173
045396c8 174 //for pout and kt extraction
05d0d05d 175 TH2F * fhPtTrigPout ; //! Pout =associated pt*sin(delta phi) distribution vs trigger pt
045396c8 176 TH2F * fhPtTrigCharged ; //! trigger and correlated particl pt, to be used for mean value for kt
177
178 //if different multiplicity analysis asked
05d0d05d 179 TH2F ** fhTrigDeltaPhiCharged ; //![GetMultiBin()] differences of phi between trigger and charged hadrons
180 TH2F ** fhTrigDeltaEtaCharged ; //![GetMultiBin()] differences of eta between trigger and charged hadrons
3f150b4b 181 TH2F ** fhTrigXECorr ; //![GetMultiBin()] Trigger particle -charged hadron momentum imbalance histogram
182 TH2F ** fhTrigXEUeCorr ; //![GetMultiBin()] Trigger particle -UE charged hadron momentum imbalance histogram
183 TH2F ** fhTrigZTCorr ; //![GetMultiBin()] Trigger particle -charged hadron momentum imbalance histogram
184 TH2F ** fhTrigZTUeCorr ; //![GetMultiBin()] Trigger particle -UE charged hadron momentum imbalance histogram
185
05d0d05d 186 TH2F * fhAssocPt ; //! Trigger pT vs associated pT
187 TH2F * fhAssocPtBkg; //! Trigger pT vs associated pT for background
188 TH2F ** fhDeltaPhiAssocPtBin; //![fNAssocPtBins] Trigger pT vs dPhi for different associated pt bins
06d3bad7 189 TH2F ** fhDeltaPhiAssocPtBinHMPID; //![fNAssocPtBins] Trigger pT vs dPhi for different associated pt bins, track with HMPID
190 TH2F ** fhDeltaPhiAssocPtBinHMPIDAcc; //![fNAssocPtBins] Trigger pT vs dPhi for different associated pt bins, track with HMPIDAcc
05d0d05d 191 TH2F ** fhDeltaPhiBradAssocPtBin; //![fNAssocPtBins] Trigger pT vs dPhi Brad (?) for different associated pt bins
66e64043 192 TH2F * fhDeltaPhiBrad; //! Trigger pT vs dPhi Brad (?) for different associated pt bins
05d0d05d 193 TH2F ** fhXEAssocPtBin ; //![fNAssocPtBins] Trigger pT vs xE for different associated pt bins
66e64043 194 TH2F * fhXE ; //! Trigger pT vs xE for different associated pt bins
3f150b4b 195 TH2F ** fhZTAssocPtBin ; //![fNAssocPtBins] Trigger pT vs zT for different associated pt bins
196 TH2F * fhZT ; //! Trigger pT vs zT for different associated pt bins
197
045396c8 198 //trigger-neutral histograms
199 TH2F * fhDeltaPhiDeltaEtaNeutral ; //! differences of eta and phi between trigger and neutral hadrons (pi0)
200 TH2F * fhPhiNeutral ; //! Phi distribution of neutral particles
201 TH2F * fhEtaNeutral ; //! Eta distribution of neutral particles
202 TH2F * fhDeltaPhiNeutral ; //! Difference of neutral particle phi and trigger particle phi as function of trigger particle pT
203 TH2F * fhDeltaEtaNeutral ; //! Difference of neutral particle eta and trigger particle eta as function of trigger particle pT
204 TH2F * fhDeltaPhiNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
205 TH2F * fhDeltaPhiUeNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
3f150b4b 206 TH2F * fhXENeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
207 TH2F * fhXEUeNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
208 TH2F * fhPtHbpXENeutral ; //! Trigger particle -neutral particle momentum HBP histogram
209 TH2F * fhPtHbpXEUeNeutral ; //! Trigger particle -underlying neutral hadron momentum HBP histogram
210 TH2F * fhZTNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
211 TH2F * fhZTUeNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
212 TH2F * fhPtHbpZTNeutral ; //! Trigger particle -neutral particle momentum HBP histogram
213 TH2F * fhPtHbpZTUeNeutral ; //! Trigger particle -underlying neutral hadron momentum HBP histogram
045396c8 214
045396c8 215 //if several UE calculation is on, most useful for jet-jet events contribution
216 TH2F * fhDeltaPhiUeLeftNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of neutral particle pT
217 TH2F * fhDeltaPhiUeRightNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi
3f150b4b 218 TH2F * fhXEUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentum imbalance histogram
219 TH2F * fhXEUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentum imbalance histogram
220 TH2F * fhPtHbpXEUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentum HBP histogram
221 TH2F * fhPtHbpXEUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentum HBP histogram
222 TH2F * fhZTUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentum imbalance histogram
223 TH2F * fhZTUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentum imbalance histogram
224 TH2F * fhPtHbpZTUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentum HBP histogram
225 TH2F * fhPtHbpZTUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentum HBP histogram
045396c8 226
227 //for decay photon trigger correlation
228 TH2F * fhPtPi0DecayRatio ; //! for pi0 pt and ratio of decay photon pt
229 TH2F * fhDeltaPhiDecayCharged ; //! Difference of charged particle phi and decay trigger
3f150b4b 230 TH2F * fhXEDecayCharged ; //! Trigger particle (decay from pi0)-charged hadron momentum imbalance histogram
231 TH2F * fhZTDecayCharged ; //! Trigger particle (decay from pi0)-charged hadron momentum imbalance histogram
045396c8 232 TH2F * fhDeltaPhiDecayNeutral ; //! Difference of neutral particle phi and decay trigger
3f150b4b 233 TH2F * fhXEDecayNeutral ; //! Trigger particle (decay from pi0)-neutral hadron momentum imbalance histogram
234 TH2F * fhZTDecayNeutral ; //! Trigger particle (decay from pi0)-neutral hadron momentum imbalance histogram
235
045396c8 236 //if the data is MC, fill MC information
237 TH2F * fh2phiLeadingParticle; //! #phi resolution for triggers
238 TH1F * fhMCLeadingCount; //! add explanation
239 TH2F * fhMCEtaCharged; //! add explanation
240 TH2F * fhMCPhiCharged; //! add explanation
241 TH2F * fhMCDeltaEtaCharged; //! add explanation
242 TH2F * fhMCDeltaPhiCharged; //! add explanation
243 TH2F * fhMCDeltaPhiDeltaEtaCharged; //! add explanation
244 TH2F * fhMCDeltaPhiChargedPt; //! add explanation
3f150b4b 245 TH2F * fhMCPtXECharged; //! add explanation
246 TH2F * fhMCPtHbpXECharged; //! add explanation
247 TH2F * fhMCPtZTCharged; //! add explanation
248 TH2F * fhMCPtHbpZTCharged; //! add explanation
045396c8 249 TH2F * fhMCPtTrigPout ; //! add explanation
250 TH2F * fhMCPtAssocDeltaPhi ; //! Pout =associated pt*sin(delta phi) distribution
251
3f150b4b 252 AliAnaParticleHadronCorrelation( const AliAnaParticleHadronCorrelation & ph) ; // cpy ctor
253 AliAnaParticleHadronCorrelation & operator = (const AliAnaParticleHadronCorrelation & ph) ; // cpy assignment
045396c8 254
3f150b4b 255 ClassDef(AliAnaParticleHadronCorrelation,11)
045396c8 256} ;
257
258
259#endif //ALIANAPARTICLEHADRONCORRELATION_H
260
261
262