1 #ifndef ALIANAELECTRON_H
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2 #define ALIANAELECTRON_H
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3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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4 * See cxx source for full Copyright notice */
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7 //_________________________________________________________________________
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9 // Class for the electron identification.
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10 // Clusters from EMCAL matched to tracks are selected
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11 // and kept in the AOD. Few histograms produced.
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14 //-- Author: J.L. Klay (Cal Poly)
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16 // --- ROOT system ---
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22 // --- ANALYSIS system ---
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23 #include "AliAnaPartCorrBaseClass.h"
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25 class AliCaloTrackReader;
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29 class AliAnaElectron : public AliAnaPartCorrBaseClass {
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33 AliAnaElectron() ; // default ctor
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34 AliAnaElectron(const AliAnaElectron & g) ; // cpy ctor
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35 AliAnaElectron & operator = (const AliAnaElectron & g) ;//cpy assignment
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36 virtual ~AliAnaElectron() ; //virtual dtor
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38 TList * GetCreateOutputObjects();
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42 void MakeAnalysisFillAOD() ;
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44 void MakeAnalysisFillHistograms() ;
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47 Int_t GetDVMBtag(AliAODTrack * tr); //returns # tracks from secvtx
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49 //Temporary local method to get DCA because AliAODTrack is stupid
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50 Bool_t GetDCA(const AliAODTrack* tr,Double_t imp[2], Double_t cov[3]);
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52 Bool_t PhotonicPrim(const AliAODPWG4Particle* part); //check with track list
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53 Bool_t PhotonicV0(Int_t trackId); //check with V0 list
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55 //check if track has been flagged as a non-photonic or DVM electron
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56 //used with the jet tracks to tag bjets
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57 Bool_t CheckTrack(const AliAODTrack* track,const char* type);
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58 Bool_t IsMcBJet(Double_t x, Double_t y, AliStack* st);
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60 void Print(const Option_t * opt)const;
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62 TString GetCalorimeter() const {return fCalorimeter ; }
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63 Double_t GetpOverEmin() const {return fpOverEmin ; }
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64 Double_t GetpOverEmax() const {return fpOverEmax ; }
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65 Bool_t GetWriteNtuple() const {return fWriteNtuple ; }
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67 Double_t GetDrCut() const { return fDrCut; }
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68 Double_t GetPairDcaCut() const { return fPairDcaCut; }
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69 Double_t GetDecayLenCut() const { return fDecayLenCut; }
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70 Double_t GetImpactCut() const { return fImpactCut; }
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71 Double_t GetAssocPtCut() const { return fAssocPtCut; }
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72 Double_t GetMassCut() const { return fMassCut; }
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73 Double_t GetSdcaCut() const { return fSdcaCut; }
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74 Int_t GetITSCut() const { return fITSCut; }
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75 Int_t GetNTagTrackCut() const { return fNTagTrkCut; }
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76 Double_t GetIPSigCut() const { return fIPSigCut; }
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78 void SetCalorimeter(TString det) {fCalorimeter = det ; }
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79 void SetpOverEmin(Double_t min) {fpOverEmin = min ; }
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80 void SetpOverEmax(Double_t max) {fpOverEmax = max ; }
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81 void SetResidualCut(Double_t cut) {fResidualCut = cut ; }
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82 void SetWriteNtuple(Bool_t val) {fWriteNtuple = val ; }
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84 void SetDrCut(Double_t dr) { fDrCut = dr; }
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85 void SetPairDcaCut(Double_t pdca) { fPairDcaCut = pdca; }
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86 void SetDecayLenCut(Double_t dlen) { fDecayLenCut = dlen; }
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87 void SetImpactCut(Double_t imp) { fImpactCut = imp; }
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88 void SetAssocPtCut(Double_t pt) { fAssocPtCut = pt; }
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89 void SetMassCut(Double_t mass) { fMassCut = mass; }
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90 void SetSdcaCut(Double_t sdca) { fSdcaCut = sdca; }
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91 void SetITSCut(Int_t its) { fITSCut = its; }
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92 void SetNTagTrackCut(Int_t ntr) { fNTagTrkCut = ntr; }
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93 void SetIPSigCut(Double_t ips) { fIPSigCut = ips; }
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95 void InitParameters();
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97 void Terminate(TList * outputList);
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98 void ReadHistograms(TList * outputList); //Fill histograms with
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99 //histograms in ouput list,
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100 //needed in Terminate.
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102 //For DVM B-tag method
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103 Double_t ComputeSignDca(AliAODTrack *track, AliAODTrack *track2 , float cut1);
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104 //the 2 following functions are internal methods of the b-tagging
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105 //based on transverse impact parameter
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106 Double_t GetIPSignificance(AliAODTrack *tr, Double_t jetPhi);
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107 void GetImpactParamVect(Double_t Pxy[2], Double_t t[2], Double_t Vxy[2], Double_t ip[2]);
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108 //For determining origin of electron
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109 Int_t GetMCSource(Int_t mctag);
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112 TString fCalorimeter; //! Which detector? EMCAL or PHOS
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113 Double_t fpOverEmin; //! Minimum p/E value for Electrons
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114 Double_t fpOverEmax; //! Maximum p/E value for Electrons
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115 Double_t fResidualCut; //! Track-cluster matching distance
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118 Double_t fDrCut; //max dR
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119 Double_t fPairDcaCut; //max pair-DCA
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120 Double_t fDecayLenCut; //max 3d-decaylength
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121 Double_t fImpactCut; //max track impact param
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122 Double_t fAssocPtCut; //min associated pt
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123 Double_t fMassCut; //min Minv cut
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124 Double_t fSdcaCut; //min signDca
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125 Int_t fITSCut; //min ITS hits (both)
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127 Int_t fNTagTrkCut; //min number of tracks required for IP sig tag
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128 Double_t fIPSigCut; //min IP significance cut
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130 Double_t fJetEtaCut; //max eta for jets
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131 Double_t fJetPhiMin; //min phi for jets
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132 Double_t fJetPhiMax; //max phi for jets
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134 Bool_t fWriteNtuple; //flag for filling ntuple or not
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136 ///////////////////////////////////////
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137 //Output histograms and Ntuples
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139 ///////////////////////////////////////
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140 //RC = RECO only - these histos will be filled using only reco
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144 TH1F * fhImpactXY; //! XY impact parameter of all tracks to primary vertex
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145 TH1F * fhRefMult; //! refmult (tracks with |eta| < 0.5)
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146 TH1F * fhRefMult2; //! refmult2 (tracks with |eta| < 0.5 & impXY,impZ < 1.0)
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149 TH1F *fh1pOverE; //! p/E for track-cluster matches
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150 TH1F *fh1EOverp; //! E/p for track-cluster matches (For PMJ)
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151 TH1F *fh1dR; //! distance between projected track and cluster
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152 TH2F *fh2EledEdx; //! dE/dx vs. momentum for electron candidates
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153 TH2F *fh2MatchdEdx; //! dE/dx vs. momentum for all matches
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154 TH2F *fh2dEtadPhi; //! DeltaEta vs. DeltaPhi of all track/cluster pairs
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155 TH2F *fh2dEtadPhiMatched; //! DeltaEta vs. DeltaPhi of matched track/cluster pairs
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156 TH2F *fh2dEtadPhiUnmatched; //! DeltaEta vs. DeltaPhi of unmatched track/cluster pairs
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158 TH2F* fh2TrackPVsClusterE; //!track momentum vs. cluster energy
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159 TH2F* fh2TrackPtVsClusterE; //!track pt vs. cluster energy
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160 TH2F* fh2TrackPhiVsClusterPhi; //!track phi vs. cluster phi
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161 TH2F* fh2TrackEtaVsClusterEta; //!track eta vs. cluster eta
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163 //Photonic Electron checks
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164 TH1F* fh1OpeningAngle; //!opening angle between pairs of photon candidates
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165 TH1F* fh1MinvPhoton; //!invariant mass distribution of electron pairs
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167 //Reconstructed electrons
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168 TH1F * fhPtElectron; //! Number of identified electron vs transverse momentum
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169 TH2F * fhPhiElectron; //! Azimuthal angle of identified electron vs transverse momentum
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170 TH2F * fhEtaElectron; //! Pseudorapidity of identified electron vs tranvserse momentum
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172 TH1F * fhPtNPE; //! Number of non-photonic electron vs transverse momentum
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173 TH2F * fhPhiNPE; //! Azimuthal angle of non-photonic electron vs transverse momentum
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174 TH2F * fhEtaNPE; //! Pseudorapidity of non-photonic electron vs tranvserse momentum
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176 TH1F * fhPtPE; //! Number of photonic electron vs transverse momentum
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177 TH2F * fhPhiPE; //! Azimuthal angle of photonic electron vs transverse momentum
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178 TH2F * fhEtaPE; //! Pseudorapidity of photonic electron vs tranvserse momentum
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181 TH2F * fhDVMBtagCut1; //! DVM B-tagging result for cut1 (minv>1.0)
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182 TH2F * fhDVMBtagCut2; //! DVM B-tagging result for cut2 (minv>1.5)
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183 TH2F * fhDVMBtagCut3; //! DVM B-tagging result for cut3 (minv>1.8)
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184 TH2F * fhDVMBtagQA1; //! DVM B-tagging : QA of pairDca vs decaylength
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185 TH2F * fhDVMBtagQA2; //! DVM B-tagging : QA of signDca vs mass
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186 TH1F * fhDVMBtagQA3; //! DVM B-tagging : QA number of ITS clusters
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187 TH1F * fhDVMBtagQA4; //! DVM B-tagging : QA prim vtx impXY
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188 TH1F * fhDVMBtagQA5; //! DVM B-tagging : QA prim vtx impZ
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190 TH1F * fhIPSigBtagQA1; //! IPSig B-tagging : QA of # tag tracks
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191 TH1F * fhIPSigBtagQA2; //! IPSig B-tagging : QA of IP sig
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192 TH1F * fhTagJetPt1x4; //! IPSig B-tagging : result for (1 track, ipSignif>4)
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193 TH1F * fhTagJetPt2x3; //! IPSig B-tagging : result for (2 track, ipSignif>3)
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194 TH1F * fhTagJetPt3x2; //! IPSig B-tagging : result for (3 track, ipSignif>2)
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197 TH2F* fhJetType; //! How many of each tag were found vs jet pt
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198 TH2F* fhBJetXsiFF; //! B-tagged jet FF with xsi = log(pt_Jet/pt_Track)
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199 TH2F* fhBJetPtFF; //! B-tagged jet FF with pt_Track
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200 TH2F* fhBJetEtaPhi; //! B-tagged jet eta-phi distribution
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201 TH2F* fhNonBJetXsiFF; //! Non b-tagged jet FF with xsi = log(pt_Jet/pt_Track)
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202 TH2F* fhNonBJetPtFF; //! Non b-tagged jet FF with pt_Track
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203 TH2F* fhNonBJetEtaPhi; //! Non b-tagged jet eta-phi distribution
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205 ///////////////////////////////////////////////////////////////////
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206 //MC = From here down, the histograms use MC information, so they will
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207 //only be filled in simulations
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208 TNtuple* fEleNtuple; //! testing ntuple
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210 TH2F * fhPhiConversion; //! Azimuthal angle of conversion electron vs transverse momentum
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211 TH2F * fhEtaConversion; //! Pseudorapidity of conversion electron vs tranvserse momentum
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213 //Histograms for comparison to tracking detectors
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214 TH2F* fhPtHadron; //!Pt distribution of reco charged hadrons
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215 //!(pi,k,p) in EMCAL acceptance
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216 TH2F* fhPtNPEleTPC; //!Pt distribution of non-photonic reco electrons using
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217 //!just TPC dEdx info in EMCAL acceptance
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218 TH2F* fhPtNPEleTPCTRD; //!Pt distribution of non-photonic reco electrons using
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219 //!pid info from tracking detectors only in EMCAL acceptance
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220 TH2F* fhPtNPEleTTE; //!Pt distribution of non-photonic reco
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221 //!electrons using pid info from TPC+TRD+EMCAL
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222 //!in EMCAL acceptance
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224 //For computing efficiency of IPSIG tag
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225 //these require that an MC b-Ancestor is present in the jet
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226 TH1F * fhBJetPt1x4; //! IPSig B-tagging : result for (1 track, ipSignif>4)
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227 TH1F * fhBJetPt2x3; //! IPSig B-tagging : result for (2 track, ipSignif>3)
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228 TH1F * fhBJetPt3x2; //! IPSig B-tagging : result for (3 track, ipSignif>2)
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230 TH2F* fhDVMJet; //! DVM jet algo check
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232 ////////////////////////////
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233 //MC Only Rate histograms
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235 TNtuple *fMCEleNtuple; //! Ntuple of MC electrons
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237 TH2F* fhMCBJetElePt; //! Pt of B-Jet vs pt of electron
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238 TH1F* fhPtMCHadron; //! Pt distribution of MC charged hadrons (pi,k,p) in EMCAL acceptance
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239 TH2F* fhPtMCElectron; //! Pt distribution of MC electrons from various sources in EMCAL
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241 ClassDef(AliAnaElectron,8)
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246 #endif//ALIANAELECTRON_H
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