1 #ifndef ALIDIELECTRONPID_H
2 #define ALIDIELECTRONPID_H
4 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 //#############################################################
9 //# Class AliDielectronPID #
12 //# Anton Andronic, GSI / A.Andronic@gsi.de #
13 //# Ionut C. Arsene, GSI / I.C.Arsene@gsi.de #
14 //# Julian Book, Uni Ffm / Julian.Book@cern.ch #
15 //# Frederick Kramer, Uni Ffm, / Frederick.Kramer@cern.ch #
16 //# Magnus Mager, CERN / Magnus.Mager@cern.ch #
17 //# WooJin J. Park, GSI / W.J.Park@gsi.de #
18 //# Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch #
20 //#############################################################
25 #include <AliAnalysisCuts.h>
26 #include <AliTRDPIDResponse.h>
34 class AliDielectronVarManager;
35 class AliDielectronVarCuts;
37 class AliDielectronPID : public AliAnalysisCuts {
39 enum DetType {kITS, kTPC, kTRD, kTRDeleEff, kTRDeleEff2D, kTOF, kEMCAL};
40 enum PIDbitType {kIgnore=0, kRequire, kIfAvailable};
43 AliDielectronPID(const char*name, const char* title);
45 virtual ~AliDielectronPID();
47 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp=-99999.,
48 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
51 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, TF1 * const funUp,
52 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
55 void AddCut(DetType det, AliPID::EParticleType type, TF1 * const funLow, Double_t nSigmaUp,
56 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
59 void AddCut(DetType det, AliPID::EParticleType type, TF1 * const funLow, TF1 * const funUp,
60 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
62 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp, Double_t min, Double_t max, Bool_t exclude, UInt_t pidBitType, TF1 * const funSigma);
63 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp,
64 AliDielectronVarCuts *varcuts, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire );
66 void AddCut(DetType det, AliPID::EParticleType type, THnBase * const histLow, Double_t nSigmaUp,
67 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE,
68 UInt_t pidBitType=AliDielectronPID::kRequire, Int_t var=-1);
70 void SetDefaults(Int_t def);
73 //Analysis cuts interface
75 virtual Bool_t IsSelected(TObject* track);
76 virtual Bool_t IsSelected(TList* /* list */ ) {return kFALSE;}
78 static void SetCorrGraph(TGraph * const gr) { fgFitCorr=gr; }
79 static TGraph *GetCorrGraph() { return fgFitCorr; }
81 static void SetCorrVal(Double_t run);
82 static Double_t GetCorrVal() { return fgCorr; }
83 static Double_t GetCorrValdEdx() { return fgCorrdEdx; }
85 static void SetCorrGraphdEdx(TGraph * const gr) { fgdEdxRunCorr=gr; }
86 static TGraph *GetCorrGraphdEdx() { return fgdEdxRunCorr; }
88 static void SetEtaCorrFunction(TF1 *fun) {fgFunEtaCorr=fun;}
89 static void SetCentroidCorrFunction(TH1 *fun) { fgFunCntrdCorr=fun; }
90 static void SetWidthCorrFunction(TH1 *fun) { fgFunWdthCorr=fun; }
91 static TF1* GetEtaCorrFunction() { return fgFunEtaCorr; }
93 static Double_t GetEtaCorr(const AliVTrack *track);
94 static Double_t GetCntrdCorr(const AliVTrack *track) { return (fgFunCntrdCorr ? GetPIDCorr(track,fgFunCntrdCorr) : 0.0); }
95 static Double_t GetWdthCorr(const AliVTrack *track) { return (fgFunWdthCorr ? GetPIDCorr(track,fgFunWdthCorr) : 1.0); }
100 TBits *fUsedVars; // list of used variables
101 DetType fDetType[kNmaxPID]; //detector type of nsigma cut
102 AliPID::EParticleType fPartType[kNmaxPID]; //particle type
103 Float_t fNsigmaLow[kNmaxPID]; //lower nsigma bound
104 Float_t fNsigmaUp[kNmaxPID]; //upper nsigma bound
105 Double_t fmin[kNmaxPID]; //lower cut limit
106 Double_t fmax[kNmaxPID]; //upper cut limit
107 Bool_t fExclude[kNmaxPID]; //use as exclusion band
108 TF1 *fFunUpperCut[kNmaxPID];//use function as upper cut
109 TF1 *fFunLowerCut[kNmaxPID];//use function as lower cut
110 UChar_t fNcuts; //number of cuts
111 UChar_t fRequirePIDbit[kNmaxPID]; //How to make use of the pid bit (see)
112 UShort_t fActiveCuts[kNmaxPID]; // list of activated cuts
113 Double_t fSigmaFunLow[kNmaxPID]; // lower bound for fFunSigma
114 Double_t fSigmaFunUp[kNmaxPID]; // upper bound for fFunSigma
115 TF1 *fFunSigma[kNmaxPID]; // use function as cut range
116 AliDielectronVarCuts *fVarCuts[kNmaxPID]; // varcuts
118 AliPIDResponse *fPIDResponse; //! pid response object
120 static TGraph *fgFitCorr; //spline fit object to correct the nsigma deviation in the TPC electron band
121 static Double_t fgCorr; //!correction value for current run. Set if fgFitCorr is set and SetCorrVal(run)
123 static Double_t fgCorrdEdx; //!dEdx correction value for current run. Set if fgFitCorr is set and SetCorrVal(run)
125 static TF1 *fgFunEtaCorr; //function for eta correction of electron sigma
126 static TH1 *fgFunCntrdCorr; //function for correction of electron sigma (centroid)
127 static TH1 *fgFunWdthCorr; //function for correction of electron sigma (width)
128 static TGraph *fgdEdxRunCorr; //run by run correction for dEdx
130 static Double_t GetPIDCorr(const AliVTrack *track, TH1 *hist);
132 THnBase* fMapElectronCutLow[kNmaxPID]; //map for the electron lower cut in units of n-sigma widths 1 centered to zero
133 Bool_t IsSelectedITS(AliVTrack * const part, Int_t icut);
134 Bool_t IsSelectedTPC(AliVTrack * const part, Int_t icut, Double_t *values);
135 Bool_t IsSelectedTRD(AliVTrack * const part, Int_t icut);
136 Bool_t IsSelectedTRDeleEff(AliVTrack * const part, Int_t icut, AliTRDPIDResponse::ETRDPIDMethod PIDmethod=AliTRDPIDResponse::kLQ1D);
137 Bool_t IsSelectedTOF(AliVTrack * const part, Int_t icut);
138 Bool_t IsSelectedEMCAL(AliVTrack * const part, Int_t icut);
140 AliDielectronPID(const AliDielectronPID &c);
141 AliDielectronPID &operator=(const AliDielectronPID &c);
143 ClassDef(AliDielectronPID,7) // Dielectron PID