Updated D0 systematic errors for PbPb 40-80

[u/mrichter/AliRoot.git] / PWG4 / PartCorrDep / AliAnaParticleHadronCorrelation.h

#ifndef ALIANAPARTICLEHADRONCORRELATION_H\r
#define ALIANAPARTICLEHADRONCORRELATION_H\r
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
 * See cxx source for full Copyright notice     */\r
/* $Id:  $ */\r
\r
//_________________________________________________________________________\r
// Class that contains the algorithm for the analysis of particle - hadron correlations\r
// Particle (for example direct gamma) must be found in a previous analysis \r
//-- Author: Gustavo Conesa (INFN-LNF)\r
\r
//  Modified by Yaxian Mao:\r
// 1. add the UE subtraction for corrlation study\r
// 2. change the correlation variable\r
// 3. Only use leading particle(cluster/track) as trigger for correlation (2010/07/02)\r
// 4. Make decay photon-hadron correlations where decay contribute pi0 mass (2010/09/09)\r
// 5. fill the pout to extract kt at the end, also to study charge asymmetry(2010/10/06) \r
// 6. Add the possibality for event selection analysis based on vertex and multiplicity bins (10/10/2010)\r
// 7. change the way of delta phi cut for UE study due to memory issue (reduce histograms)\r
\r
// --- ROOT system ---\r
//class TH3D;\r
\r
// --- Analysis system ---\r
#include "AliAnaPartCorrBaseClass.h"\r
class AliAODPWG4ParticleCorrelation ;\r
\r
class AliAnaParticleHadronCorrelation : public AliAnaPartCorrBaseClass {\r
  \r
 public: \r
  AliAnaParticleHadronCorrelation() ; // default ctor\r
  virtual ~AliAnaParticleHadronCorrelation() {;} //virtual dtor\r
 private:  \r
  AliAnaParticleHadronCorrelation(const AliAnaParticleHadronCorrelation & ph) ; // cpy ctor\r
  AliAnaParticleHadronCorrelation & operator = (const AliAnaParticleHadronCorrelation & ph) ;//cpy assignment\r
\r
 public:\r
  \r
  TObjString * GetAnalysisCuts();\r
  TList * GetCreateOutputObjects();\r
  \r
  Double_t GetDeltaPhiMaxCut() const {return fDeltaPhiMaxCut ; }\r
  Double_t GetDeltaPhiMinCut() const {return fDeltaPhiMinCut ; }\r
  void SetDeltaPhiCutRange(Double_t phimin, Double_t phimax)\r
  {fDeltaPhiMaxCut =phimax;  fDeltaPhiMinCut =phimin;}\r
 \r
  Double_t GetUeDeltaPhiMaxCut() const {return fUeDeltaPhiMaxCut ; }\r
  Double_t GetUeDeltaPhiMinCut() const {return fUeDeltaPhiMinCut ; }\r
  void SetUeDeltaPhiCutRange(Double_t uephimin, Double_t uephimax)\r
  {fUeDeltaPhiMaxCut =uephimax;  fUeDeltaPhiMinCut =uephimin;}\r
  Bool_t IsSeveralUEOn() const {return fMakeSeveralUE ; }\r
  void SwitchOnSeveralUECalculation()  { fMakeSeveralUE = kTRUE;}\r
  void SwitchOffSeveralUECalculation() { fMakeSeveralUE = kFALSE;}\r
\r
  // Do trigger-neutral correlation\r
  Bool_t DoNeutralCorr() const {return fNeutralCorr ; }\r
  void SwitchOnNeutralCorr()  { fNeutralCorr = kTRUE;}\r
  void SwitchOffNeutralCorr() { fNeutralCorr = kFALSE;}  \r
  \r
  // Do decay-hadron correlation if it is pi0 trigger\r
  Bool_t IsPi0Trigger() const {return fPi0Trigger ; }\r
  void SwitchOnDecayCorr()  { fPi0Trigger = kTRUE;}\r
  void SwitchOffDecayCorr() { fPi0Trigger = kFALSE;}  \r
  \r
  Bool_t OnlyIsolated() const {return fSelectIsolated ; }\r
  void SelectIsolated(Bool_t select) {fSelectIsolated = select ; }\r
\r
  void InitParameters();\r
  \r
  void Print(const Option_t * opt) const;\r
  \r
  void MakeChargedCorrelation(AliAODPWG4ParticleCorrelation * aodParticle,TObjArray* const pl,   const Bool_t bFillHisto) ;\r
  void MakeNeutralCorrelation(AliAODPWG4ParticleCorrelation * aodParticle,TObjArray* const pl, const Bool_t bFillHisto) ;\r
\r
  //void MakeNeutralCorrelationFillAOD(AliAODPWG4ParticleCorrelation* const aodParticle, TObjArray* const pl, TString detector)  ;\r
  //void MakeNeutralCorrelationFillHistograms(AliAODPWG4ParticleCorrelation* const aodParticle)  ;\r
	\r
  void MakeAnalysisFillAOD()  ;\r
  void MakeAnalysisFillHistograms() ; \r
  \r
  //Bool_t SelectCluster(AliVCluster * calo, Double_t *vertex, TLorentzVector & mom, Int_t & pdg) ;\r
  \r
  void SetPi0AODBranchName(TString pi0list) {fPi0AODBranchName = pi0list;}\r
  \r
 private:\r
  \r
  Double_t   fDeltaPhiMaxCut ;      // Minimum Delta Phi Gamma-Hadron\r
  Double_t   fDeltaPhiMinCut ;      // Maximum Delta Phi Gamma-Hadron\r
  Bool_t     fSelectIsolated ;      // Select only trigger particles isolated\r
  Bool_t     fMakeSeveralUE ;       // Do analysis for several underlying events contribution\r
  Double_t   fUeDeltaPhiMaxCut ;    // Minimum Delta Phi Gamma-Underlying Hadron\r
  Double_t   fUeDeltaPhiMinCut ;    // Maximum Delta Phi Gamma-Underlying Hadron\r
  TString    fPi0AODBranchName;     // Name of AOD branch with pi0, not trigger\r
  Bool_t     fNeutralCorr ;          // switch the analysis with neutral particles\r
  Bool_t     fPi0Trigger ;          // switch the analysis with decay photon from pi0 trigger\r
  \r
  //Histograms\r
//  TH2F * fhNclustersNtracks; //charge and cluster multiplicity distribution\r
  //leading particles \r
  TH1F * fhPtLeading;         //! pT distribution of leading particles\r
  TH2F * fhPhiLeading;        //! phi distribution vs pT of leading particles\r
  TH2F * fhEtaLeading;        //! eta distribution vs pT of leading particles\r
  \r
  //trigger-charged histograms\r
  TH2F * fhDeltaPhiDeltaEtaCharged ; //! differences of eta and phi between trigger and charged hadrons\r
  TH2F * fhPhiCharged  ;         //! Phi distribution of charged particles\r
  TH2F * fhEtaCharged  ;         //! Eta distribution of charged particles\r
  TH2F * fhDeltaPhiCharged  ;    //! Difference of charged particle phi and trigger particle  phi as function of  trigger particle pT\r
  TH2F * fhDeltaEtaCharged  ;    //! Difference of charged particle eta and trigger particle  eta as function of  trigger particle pT\r
  TH2F * fhDeltaPhiChargedPt  ;  //! Difference of charged particle phi and trigger particle  phi as function of charged particle pT\r
  TH2F * fhDeltaPhiUeChargedPt ; //! Difference of charged particle from underlying events phi and trigger particle  phi as function of charged particle pT\r
  TH2F * fhPtImbalanceCharged  ;   //! Trigger particle -charged hadron momentim imbalance histogram\r
  TH2F * fhPtImbalanceUeCharged  ; //! Trigger particle -underlying charged hadron momentim imbalance histogram  \r
  TH2F * fhPtImbalancePosCharged  ;   //! Trigger particle -positive charged hadron momentim imbalance histogram\r
  TH2F * fhPtImbalanceNegCharged  ; //! Trigger particle -negative charged hadron momentim imbalance histogram \r
  //with different imblance varible defination HBP distribution\r
  TH2F * fhPtHbpCharged  ;   //! Trigger particle -charged hadron momentim HBP histogram\r
  TH2F * fhPtHbpUeCharged  ; //! Trigger particle -underlying charged hadron momentim HBP histogram  \r
  \r
  //if several UE calculation is on, most useful for jet-jet events contribution\r
  TH2F * fhDeltaPhiUeLeftCharged  ;    //! Difference of charged particle from underlying events phi and trigger particle  phi as function of charged particle pT\r
  TH2F * fhDeltaPhiUeRightCharged  ;   //! Difference of charged particle from underlying events phi and trigger particle  phi \r
  TH2F * fhPtImbalanceUeLeftCharged  ; //! Trigger particle -underlying charged hadron momentim imbalance histogram \r
  TH2F * fhPtImbalanceUeRightCharged ; //! Trigger particle -underlying charged hadron momentim imbalance histogram  \r
  TH2F * fhPtHbpUeLeftCharged  ;       //! Trigger particle -underlying charged hadron momentim HBP histogram \r
  TH2F * fhPtHbpUeRightCharged  ;      //! Trigger particle -underlying charged hadron momentim HBP histogram  \r
\r
  //for pout and kt extraction\r
  TH2F * fhPtTrigPout  ; // Pout =associated pt*sin(delta phi) distribution vs trigger pt vs associated pt\r
  TH2F * fhPtAssocDeltaPhi  ; // Pout =associated pt*sin(delta phi) distribution\r
 // TH3D * fhUePoutPtTrigPtAssoc  ; // UE Pout =associated pt*sin(delta phi) distribution vs trigger pt vs associated pt\r
  TH2F * fhPtTrigCharged ; //trigger and correlated particl pt, to be used for mean value for kt	\r
  \r
  //if different multiplicity analysis asked\r
  TH2F ** fhTrigDeltaPhiCharged ; //! differences of phi between trigger and charged hadrons\r
  TH2F ** fhTrigDeltaEtaCharged ; //! differences of eta between trigger and charged hadrons\r
  TH2F ** fhTrigCorr  ;    //! Trigger particle -charged hadron momentim imbalance histogram\r
  TH2F ** fhTrigUeCorr  ;    //! Trigger particle -UE charged hadron momentim imbalance histogram\r
  \r
  //trigger-neutral histograms\r
  TH2F * fhDeltaPhiDeltaEtaNeutral ; //! differences of eta and phi between trigger and neutral hadrons (pi0)\r
  TH2F * fhPhiNeutral   ;        //! Phi distribution of neutral particles  \r
  TH2F * fhEtaNeutral   ;        //! Eta distribution of neutral particles\r
  TH2F * fhDeltaPhiNeutral   ;   //! Difference of neutral particle phi and trigger particle  phi as function of  trigger particle pT\r
  TH2F * fhDeltaEtaNeutral  ;    //! Difference of neutral particle eta and trigger particle  eta as function of  trigger particle pT\r
  TH2F * fhDeltaPhiNeutralPt  ;  //! Difference of neutral particle phi and trigger particle  phi as function of neutral particle particle pT\r
  TH2F * fhDeltaPhiUeNeutralPt ; //! Difference of neutral particle phi and trigger particle  phi as function of neutral particle particle pT  \r
  TH2F * fhPtImbalanceNeutral  ;   //! Trigger particle - neutral hadron momentum imbalance histogram \r
  TH2F * fhPtImbalanceUeNeutral  ; //! Trigger particle - neutral hadron momentum imbalance histogram \r
  //with different imblance varible defination HBP distribution  \r
  TH2F * fhPtHbpNeutral  ;   //! Trigger particle -neutral particle momentim HBP histogram\r
  TH2F * fhPtHbpUeNeutral  ; //! Trigger particle -underlying neutral hadron momentim HBP histogram  \r
\r
  //if several UE calculation is on, most useful for jet-jet events contribution\r
  TH2F * fhDeltaPhiUeLeftNeutral  ;    //! Difference of charged particle from underlying events phi and trigger particle  phi as function of neutral particle pT\r
  TH2F * fhDeltaPhiUeRightNeutral  ;   //! Difference of charged particle from underlying events phi and trigger particle  phi \r
  TH2F * fhPtImbalanceUeLeftNeutral  ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram \r
  TH2F * fhPtImbalanceUeRightNeutral ; //! Trigger particle -underlying neutral hadron momentim imbalance histogram \r
  TH2F * fhPtHbpUeLeftNeutral  ;       //! Trigger particle -underlying neutral hadron momentim HBP histogram \r
  TH2F * fhPtHbpUeRightNeutral  ;      //! Trigger particle -underlying neutral hadron momentim HBP histogram \r
  \r
  //for decay photon trigger correlation\r
  TH2F * fhPtPi0DecayRatio ;          //! for pi0 pt and ratio of decay photon pt\r
  TH2F * fhDeltaPhiDecayCharged  ;   //! Difference of charged particle phi and decay trigger\r
  TH2F * fhPtImbalanceDecayCharged ; //! Trigger particle (decay from pi0)-charged hadron momentim imbalance histogram    \r
  TH2F * fhDeltaPhiDecayNeutral  ;   //! Difference of neutral particle phi and decay trigger\r
  TH2F * fhPtImbalanceDecayNeutral ; //! Trigger particle (decay from pi0)-neutral hadron momentim imbalance histogram  \r
  \r
	\r
  ClassDef(AliAnaParticleHadronCorrelation,6)\r
} ;\r
 \r
\r
#endif //ALIANAPARTICLEHADRONCORRELATION_H\r
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