// Particle (for example direct gamma) must be found in a previous analysis
//-- Author: Gustavo Conesa (INFN-LNF)
+// Modified by Yaxian Mao:
+// 1. add the UE subtraction for corrlation study
+// 2. change the correlation variable
+// 3. Only use leading particle(cluster/track) as trigger for correlation (2010/07/02)
+// 4. Make decay photon-hadron correlations where decay contribute pi0 mass (2010/09/09)
+// 5. fill the pout to extract kt at the end, also to study charge asymmetry(2010/10/06)
+// 6. Add the possibility for event selection analysis based on vertex and multiplicity bins (10/10/2010)
+// 7. change the way of delta phi cut for UE study due to memory issue (reduce histograms)
+// 8. Add the possibility to request the absolute leading particle at the near side or not, set trigger bins, general clean-up (08/2011)
+
// --- ROOT system ---
-class TH2F;
+//class TH3D;
// --- Analysis system ---
#include "AliAnaPartCorrBaseClass.h"
public:
AliAnaParticleHadronCorrelation() ; // default ctor
- AliAnaParticleHadronCorrelation(const AliAnaParticleHadronCorrelation & ph) ; // cpy ctor
- AliAnaParticleHadronCorrelation & operator = (const AliAnaParticleHadronCorrelation & ph) ;//cpy assignment
virtual ~AliAnaParticleHadronCorrelation() {;} //virtual dtor
- TList * GetCreateOutputObjects();
+ // General methods
+
+ TObjString * GetAnalysisCuts();
+
+ TList * GetCreateOutputObjects();
+
+ void InitParameters();
+
+ void MakeAnalysisFillAOD() ;
+
+ void MakeAnalysisFillHistograms() ;
+
+ void Print(const Option_t * opt) const;
+
+ // Main analysis methods
+
+ Bool_t MakeChargedCorrelation (AliAODPWG4ParticleCorrelation * aodParticle, const TObjArray* pl, const Bool_t bFillHisto) ;
+
+ Bool_t MakeNeutralCorrelation (AliAODPWG4ParticleCorrelation * aodParticle, const TObjArray* pl, const Bool_t bFillHisto) ;
+
+ void MakeMCChargedCorrelation(AliAODPWG4ParticleCorrelation * aodParticle);
+
+
+ // Parameter setter and getter
+
+ Float_t GetMinimumTriggerPt() const { return fMinTriggerPt ; }
+
+ Float_t GetMaximumAssociatedPt() const { return fMaxAssocPt ; }
+ Float_t GetMinimumAssociatedPt() const { return fMinAssocPt ; }
+
+ Double_t GetDeltaPhiMaxCut() const { return fDeltaPhiMaxCut ; }
+ Double_t GetDeltaPhiMinCut() const { return fDeltaPhiMinCut ; }
+
+ Double_t GetUeDeltaPhiMaxCut() const { return fUeDeltaPhiMaxCut ; }
+ Double_t GetUeDeltaPhiMinCut() const { return fUeDeltaPhiMinCut ; }
+
+ void SetMinimumTriggerPt(Float_t min){ fMinTriggerPt = min ; }
- Double_t GetDeltaPhiMaxCut() const {return fDeltaPhiMaxCut ; }
- Double_t GetDeltaPhiMinCut() const {return fDeltaPhiMinCut ; }
- void SetDeltaPhiCutRange(Double_t phimin, Double_t phimax)
- {fDeltaPhiMaxCut =phimax; fDeltaPhiMinCut =phimin;}
+ void SetAssociatedPtRange(Float_t min, Float_t max)
+ { fMaxAssocPt = max ; fMinAssocPt = min ; }
+
+ void SetDeltaPhiCutRange(Double_t phimin, Double_t phimax)
+ { fDeltaPhiMaxCut = phimax ; fDeltaPhiMinCut = phimin ; }
+
+ void SetUeDeltaPhiCutRange(Double_t uephimin, Double_t uephimax)
+ { fUeDeltaPhiMaxCut = uephimax; fUeDeltaPhiMinCut = uephimin ; }
+
+ Bool_t IsSeveralUEOn() const { return fMakeSeveralUE ; }
+ void SwitchOnSeveralUECalculation() { fMakeSeveralUE = kTRUE ; }
+ void SwitchOffSeveralUECalculation() { fMakeSeveralUE = kFALSE ; }
- Double_t GetUeDeltaPhiMaxCut() const {return fUeDeltaPhiMaxCut ; }
- Double_t GetUeDeltaPhiMinCut() const {return fUeDeltaPhiMinCut ; }
- void SetUeDeltaPhiCutRange(Double_t uephimin, Double_t uephimax)
- {fUeDeltaPhiMaxCut =uephimax; fUeDeltaPhiMinCut =uephimin;}
- Bool_t IsSeveralUEOn() const {return fMakeSeveralUE ; }
- void SwitchOnSeveralUECalculation() { fMakeSeveralUE = kTRUE;}
- void SwitchOffSeveralUECalculation() { fMakeSeveralUE = kFALSE;}
+ // Do trigger-neutral correlation
+ Bool_t DoNeutralCorr() const { return fNeutralCorr ; }
+ void SwitchOnNeutralCorr() { fNeutralCorr = kTRUE ; }
+ void SwitchOffNeutralCorr() { fNeutralCorr = kFALSE ; }
+
+ // Taking the absolute leading as the trigger or not
+ Bool_t DoAbsoluteLeading() const { return fMakeAbsoluteLeading ; }
+ void SwitchOnAbsoluteLeading() { fMakeAbsoluteLeading = kTRUE ; }
+ void SwitchOffAbsoluteLeading() { fMakeAbsoluteLeading = kFALSE ; }
+
+ // Do decay-hadron correlation if it is pi0 trigger
+ Bool_t IsPi0Trigger() const { return fPi0Trigger ; }
+ void SwitchOnDecayCorr() { fPi0Trigger = kTRUE ; }
+ void SwitchOffDecayCorr() { fPi0Trigger = kFALSE ; }
+
+ Bool_t OnlyIsolated() const { return fSelectIsolated ; }
+ void SelectIsolated(Bool_t s) { fSelectIsolated = s ; }
- Bool_t OnlyIsolated() const {return fSelectIsolated ; }
- void SelectIsolated(Bool_t select) {fSelectIsolated = select ; }
+ void SetPi0AODBranchName(TString n) { fPi0AODBranchName = n ; }
- void InitParameters();
+ void SetNAssocPtBins(Int_t n) ;
+ void SetAssocPtBinLimit(Int_t ibin, Float_t pt) ;
+
+ private:
+ Float_t fMinTriggerPt ; // Minimum trigger hadron pt
+ Float_t fMaxAssocPt ; // Maximum associated hadron pt
+ Float_t fMinAssocPt ; // Minimum associated hadron pt
+ Double_t fDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Hadron
+ Double_t fDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Hadron
+ Bool_t fSelectIsolated ; // Select only trigger particles isolated
+ Bool_t fMakeSeveralUE ; // Do analysis for several underlying events contribution
+ Double_t fUeDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Underlying Hadron
+ Double_t fUeDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Underlying Hadron
+ TString fPi0AODBranchName; // Name of AOD branch with pi0, not trigger
+ Bool_t fNeutralCorr ; // switch the analysis with neutral particles
+ Bool_t fPi0Trigger ; // switch the analysis with decay photon from pi0 trigger
+ Bool_t fMakeAbsoluteLeading ; // requesting absolute leading while it is cluster triggers
+ Int_t fLeadingTriggerIndex ; // Store here per event the trigger index, to avoid too many loops
- void Print(const Option_t * opt) const;
+ Int_t fNAssocPtBins ; // Number of associated pT bins under study
+ Float_t fAssocPtBinLimit[10] ; // Associated pT under study
- void MakeChargedCorrelation(AliAODPWG4ParticleCorrelation * aodParticle,TObjArray* const pl, const Bool_t bFillHisto) ;
- void MakeNeutralCorrelationFillAOD(AliAODPWG4ParticleCorrelation* const aodParticle, TObjArray* const pl, TString detector) ;
- void MakeNeutralCorrelationFillHistograms(AliAODPWG4ParticleCorrelation* const aodParticle) ;
-
- void MakeAnalysisFillAOD() ;
- void MakeAnalysisFillHistograms() ;
+ //Histograms
+
+ //leading particles
+ TH1F * fhPtLeading; //! pT distribution of leading particles
+ TH2F * fhPhiLeading; //! phi distribution vs pT of leading particles
+ TH2F * fhEtaLeading; //! eta distribution vs pT of leading particles
- Bool_t SelectCluster(AliAODCaloCluster * calo, Double_t *vertex, TLorentzVector & mom, Int_t & pdg) const ;
+ //trigger-charged histograms
+ TH2F * fhDeltaPhiDeltaEtaCharged ; //! differences of eta and phi between trigger and charged hadrons
+ TH2F * fhPhiCharged ; //! Phi distribution of charged particles
+ TH2F * fhEtaCharged ; //! Eta distribution of charged particles
+ TH2F * fhDeltaPhiCharged ; //! Difference of charged particle phi and trigger particle phi as function of trigger particle pT
+ TH2F * fhDeltaEtaCharged ; //! Difference of charged particle eta and trigger particle eta as function of trigger particle pT
+ TH2F * fhDeltaPhiChargedPt ; //! Difference of charged particle phi and trigger particle phi as function of charged particle pT
+ TH2F * fhDeltaPhiUeChargedPt ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
+ TH2F * fhPtImbalanceCharged ; //! Trigger particle -charged hadron momentim imbalance histogram
+ TH2F * fhPtImbalanceUeCharged ; //! Trigger particle -underlying charged hadron momentum imbalance histogram
+ TH2F * fhPtImbalancePosCharged ; //! Trigger particle -positive charged hadron momentum imbalance histogram
+ TH2F * fhPtImbalanceNegCharged ; //! Trigger particle -negative charged hadron momentum imbalance histogram
- private:
+ //with different imblance varible defination HBP distribution
+ TH2F * fhPtHbpCharged ; //! Trigger particle -charged hadron momentim HBP histogram
+ TH2F * fhPtHbpUeCharged ; //! Trigger particle -underlying charged hadron momentim HBP histogram
- Double_t fDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Hadron
- Double_t fDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Hadron
- Bool_t fSelectIsolated ; // Select only trigger particles isolated
- Bool_t fMakeSeveralUE ; // Do analysis for several underlying events contribution
- Double_t fUeDeltaPhiMaxCut ; // Minimum Delta Phi Gamma-Underlying Hadron
- Double_t fUeDeltaPhiMinCut ; // Maximum Delta Phi Gamma-Underlying Hadron
+ //if several UE calculation is on, most useful for jet-jet events contribution
+ TH2F * fhDeltaPhiUeLeftCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
+ TH2F * fhDeltaPhiUeRightCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi
+ TH2F * fhPtImbalanceUeLeftCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
+ TH2F * fhPtImbalanceUeRightCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
+ TH2F * fhPtHbpUeLeftCharged ; //! Trigger particle -underlying charged hadron momentim HBP histogram
+ TH2F * fhPtHbpUeRightCharged ; //! Trigger particle -underlying charged hadron momentim HBP histogram
+ //for pout and kt extraction
+ TH2F * fhPtTrigPout ; //! Pout =associated pt*sin(delta phi) distribution vs trigger pt
+ TH2F * fhPtTrigCharged ; //! trigger and correlated particl pt, to be used for mean value for kt
- //Histograms
- TH2F * fhPhiCharged ; //! Phi distribution of selected charged particles
- TH2F * fhPhiNeutral ; //! Phi distribution of selected neutral particles
- TH2F * fhEtaCharged ; //! Eta distribution of selected charged particles
- TH2F * fhEtaNeutral ; //! Eta distribution of selected neutral particles
- TH2F * fhDeltaPhiCharged ; //! Difference of charged particle phi and trigger particle phi as function of trigger particle pT
- TH2F * fhDeltaPhiNeutral ; //! Difference of neutral particle phi and trigger particle phi as function of trigger particle pT
- TH2F * fhDeltaEtaCharged ; //! Difference of charged particle eta and trigger particle eta as function of trigger particle pT
- TH2F * fhDeltaEtaNeutral ; //! Difference of neutral particle eta and trigger particle eta as function of trigger particle pT
- TH2F * fhDeltaPhiChargedPt ; //! Difference of charged particle phi and trigger particle phi as function of charged particle pT
- TH2F * fhDeltaPhiNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
- TH2F * fhDeltaPhiUeChargedPt ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
- TH2F * fhDeltaPhiUeNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
+ //if different multiplicity analysis asked
+ TH2F ** fhTrigDeltaPhiCharged ; //![GetMultiBin()] differences of phi between trigger and charged hadrons
+ TH2F ** fhTrigDeltaEtaCharged ; //![GetMultiBin()] differences of eta between trigger and charged hadrons
+ TH2F ** fhTrigCorr ; //![GetMultiBin()] Trigger particle -charged hadron momentim imbalance histogram
+ TH2F ** fhTrigUeCorr ; //![GetMultiBin()] Trigger particle -UE charged hadron momentim imbalance histogram
+
+ TH2F * fhAssocPt ; //! Trigger pT vs associated pT
+ TH2F * fhAssocPtBkg; //! Trigger pT vs associated pT for background
+ TH2F ** fhDeltaPhiAssocPtBin; //![fNAssocPtBins] Trigger pT vs dPhi for different associated pt bins
+ TH2F ** fhDeltaPhiBradAssocPtBin; //![fNAssocPtBins] Trigger pT vs dPhi Brad (?) for different associated pt bins
+ TH2F * fhDeltaPhiBrad; //! Trigger pT vs dPhi Brad (?) for different associated pt bins
+ TH2F ** fhXEAssocPtBin ; //![fNAssocPtBins] Trigger pT vs xE for different associated pt bins
+ TH2F * fhXE ; //! Trigger pT vs xE for different associated pt bins
+
+ //trigger-neutral histograms
+ TH2F * fhDeltaPhiDeltaEtaNeutral ; //! differences of eta and phi between trigger and neutral hadrons (pi0)
+ TH2F * fhPhiNeutral ; //! Phi distribution of neutral particles
+ TH2F * fhEtaNeutral ; //! Eta distribution of neutral particles
+ TH2F * fhDeltaPhiNeutral ; //! Difference of neutral particle phi and trigger particle phi as function of trigger particle pT
+ TH2F * fhDeltaEtaNeutral ; //! Difference of neutral particle eta and trigger particle eta as function of trigger particle pT
+ TH2F * fhDeltaPhiNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
+ TH2F * fhDeltaPhiUeNeutralPt ; //! Difference of neutral particle phi and trigger particle phi as function of neutral particle particle pT
+ TH2F * fhPtImbalanceNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
+ TH2F * fhPtImbalanceUeNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
+
+ //with different imblance varible defination HBP distribution
+ TH2F * fhPtHbpNeutral ; //! Trigger particle -neutral particle momentim HBP histogram
+ TH2F * fhPtHbpUeNeutral ; //! Trigger particle -underlying neutral hadron momentim HBP histogram
- TH2F * fhPtImbalanceNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
- TH2F * fhPtImbalanceCharged ; //! Trigger particle -charged hadron momentim imbalance histogram
- TH2F * fhPtImbalanceUeCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
- TH2F * fhPtImbalanceUeNeutral ; //! Trigger particle - neutral hadron momentum imbalance histogram
+ //if several UE calculation is on, most useful for jet-jet events contribution
+ TH2F * fhDeltaPhiUeLeftNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of neutral particle pT
+ TH2F * fhDeltaPhiUeRightNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi
+ TH2F * fhPtImbalanceUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram
+ TH2F * fhPtImbalanceUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram
+ TH2F * fhPtHbpUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentim HBP histogram
+ TH2F * fhPtHbpUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentim HBP histogram
+
+ //for decay photon trigger correlation
+ TH2F * fhPtPi0DecayRatio ; //! for pi0 pt and ratio of decay photon pt
+ TH2F * fhDeltaPhiDecayCharged ; //! Difference of charged particle phi and decay trigger
+ TH2F * fhPtImbalanceDecayCharged ; //! Trigger particle (decay from pi0)-charged hadron momentim imbalance histogram
+ TH2F * fhDeltaPhiDecayNeutral ; //! Difference of neutral particle phi and decay trigger
+ TH2F * fhPtImbalanceDecayNeutral ; //! Trigger particle (decay from pi0)-neutral hadron momentim imbalance histogram
+
+ //if the data is MC, fill MC information
+ TH2F * fh2phiLeadingParticle; //! #phi resolution for triggers
+ TH1F * fhMCLeadingCount; //! add explanation
+ TH2F * fhMCEtaCharged; //! add explanation
+ TH2F * fhMCPhiCharged; //! add explanation
+ TH2F * fhMCDeltaEtaCharged; //! add explanation
+ TH2F * fhMCDeltaPhiCharged; //! add explanation
+ TH2F * fhMCDeltaPhiDeltaEtaCharged; //! add explanation
+ TH2F * fhMCDeltaPhiChargedPt; //! add explanation
+ TH2F * fhMCPtImbalanceCharged; //! add explanation
+ TH2F * fhMCPtHbpCharged; //! add explanation
+ TH2F * fhMCPtTrigPout ; //! add explanation
+ TH2F * fhMCPtAssocDeltaPhi ; //! Pout =associated pt*sin(delta phi) distribution
-//if several UE calculation is on, most useful for jet-jet events contribution
- TH2F * fhDeltaPhiUeLeftCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of charged particle pT
- TH2F * fhDeltaPhiUeRightCharged ; //! Difference of charged particle from underlying events phi and trigger particle phi
- TH2F * fhDeltaPhiUeLeftNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi as function of neutral particle pT
- TH2F * fhDeltaPhiUeRightNeutral ; //! Difference of charged particle from underlying events phi and trigger particle phi
- TH2F * fhPtImbalanceUeLeftCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
- TH2F * fhPtImbalanceUeRightCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram
- TH2F * fhPtImbalanceUeLeftNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram
- TH2F * fhPtImbalanceUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram
- ClassDef(AliAnaParticleHadronCorrelation,2)
+ AliAnaParticleHadronCorrelation(const AliAnaParticleHadronCorrelation & ph) ; // cpy ctor
+ AliAnaParticleHadronCorrelation & operator = (const AliAnaParticleHadronCorrelation & ph) ;//cpy assignment
+
+ ClassDef(AliAnaParticleHadronCorrelation,9)
} ;
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff