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 //#############################################################
23 #include <AliAnalysisCuts.h>
24 #include <AliTRDPIDResponse.h>
31 class AliDielectronVarManager;
32 class AliDielectronVarCuts;
34 class AliDielectronPID : public AliAnalysisCuts {
36 enum DetType {kITS, kTPC, kTRD, kTRDeleEff, kTRDeleEff2D, kTOF, kEMCAL};
37 enum PIDbitType {kIgnore=0, kRequire, kIfAvailable};
40 AliDielectronPID(const char*name, const char* title);
42 virtual ~AliDielectronPID();
44 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp=-99999.,
45 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
48 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, TF1 * const funUp,
49 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
52 void AddCut(DetType det, AliPID::EParticleType type, TF1 * const funLow, Double_t nSigmaUp,
53 Double_t min=0, Double_t max=0, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire,
56 void AddCut(DetType det, AliPID::EParticleType type, TF1 * const funLow, TF1 * const funUp,
57 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, Double_t nSigmaLow, Double_t nSigmaUp, Double_t min, Double_t max, Bool_t exclude, UInt_t pidBitType, TF1 * const funSigma);
60 void AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp,
61 AliDielectronVarCuts *varcuts, Bool_t exclude=kFALSE, UInt_t pidBitType=AliDielectronPID::kRequire );
63 void SetDefaults(Int_t def);
66 //Analysis cuts interface
68 virtual Bool_t IsSelected(TObject* track);
69 virtual Bool_t IsSelected(TList* /* list */ ) {return kFALSE;}
71 static void SetCorrGraph(TGraph * const gr) { fgFitCorr=gr; }
72 static TGraph *GetCorrGraph() { return fgFitCorr; }
74 static void SetCorrVal(Double_t run);
75 static Double_t GetCorrVal() { return fgCorr; }
76 static Double_t GetCorrValdEdx() { return fgCorrdEdx; }
78 static void SetCorrGraphdEdx(TGraph * const gr) { fgdEdxRunCorr=gr; }
79 static TGraph *GetCorrGraphdEdx() { return fgdEdxRunCorr; }
81 static void SetEtaCorrFunction(TF1 *fun) {fgFunEtaCorr=fun;}
82 static void SetCentroidCorrFunction(TF1 *fun) { fgFunCntrdCorr=fun; }
83 static void SetWidthCorrFunction(TF1 *fun) { fgFunWdthCorr=fun; }
84 static TF1* GetEtaCorrFunction() { return fgFunEtaCorr; }
85 static TF1* GetCentroidCorrFunction() { return fgFunCntrdCorr; }
86 static TF1* GetWidthCorrFunction() { return fgFunWdthCorr; }
88 static Double_t GetEtaCorr(const AliVTrack *track);
89 static Double_t GetCntrdCorr(const AliVTrack *track) { return (fgFunCntrdCorr ? GetPIDCorr(track,fgFunCntrdCorr) : 0.0); }
90 static Double_t GetWdthCorr(const AliVTrack *track) { return (fgFunWdthCorr ? GetPIDCorr(track,fgFunWdthCorr) : 1.0); }
95 DetType fDetType[kNmaxPID]; //detector type of nsigma cut
96 AliPID::EParticleType fPartType[kNmaxPID]; //particle type
97 Float_t fNsigmaLow[kNmaxPID]; //lower nsigma bound
98 Float_t fNsigmaUp[kNmaxPID]; //upper nsigma bound
99 Double_t fmin[kNmaxPID]; //lower cut limit
100 Double_t fmax[kNmaxPID]; //upper cut limit
101 Bool_t fExclude[kNmaxPID]; //use as exclusion band
102 TF1 *fFunUpperCut[kNmaxPID];//use function as upper cut
103 TF1 *fFunLowerCut[kNmaxPID];//use function as lower cut
104 UChar_t fNcuts; //number of cuts
105 UChar_t fRequirePIDbit[kNmaxPID]; //How to make use of the pid bit (see)
106 UShort_t fActiveCuts[kNmaxPID]; // list of activated cuts
107 Double_t fSigmaFunLow[kNmaxPID]; // lower bound for fFunSigma
108 Double_t fSigmaFunUp[kNmaxPID]; // upper bound for fFunSigma
109 TF1 *fFunSigma[kNmaxPID]; // use function as cut range
110 AliDielectronVarCuts *fVarCuts[kNmaxPID]; // varcuts
112 AliPIDResponse *fPIDResponse; //! pid response object
114 static TGraph *fgFitCorr; //spline fit object to correct the nsigma deviation in the TPC electron band
115 static Double_t fgCorr; //!correction value for current run. Set if fgFitCorr is set and SetCorrVal(run)
117 static Double_t fgCorrdEdx; //!dEdx correction value for current run. Set if fgFitCorr is set and SetCorrVal(run)
119 static TF1 *fgFunEtaCorr; //function for eta correction of electron sigma
120 static TF1 *fgFunCntrdCorr; //function for correction of electron sigma (centroid)
121 static TF1 *fgFunWdthCorr; //function for correction of electron sigma (width)
122 static TGraph *fgdEdxRunCorr; //run by run correction for dEdx
124 static Double_t GetPIDCorr(const AliVTrack *track, TF1 *fun);
126 Bool_t IsSelectedITS(AliVTrack * const part, Int_t icut);
127 Bool_t IsSelectedTPC(AliVTrack * const part, Int_t icut);
128 Bool_t IsSelectedTRD(AliVTrack * const part, Int_t icut);
129 Bool_t IsSelectedTRDeleEff(AliVTrack * const part, Int_t icut, AliTRDPIDResponse::ETRDPIDMethod PIDmethod=AliTRDPIDResponse::kLQ1D);
130 Bool_t IsSelectedTOF(AliVTrack * const part, Int_t icut);
131 Bool_t IsSelectedEMCAL(AliVTrack * const part, Int_t icut);
133 AliDielectronPID(const AliDielectronPID &c);
134 AliDielectronPID &operator=(const AliDielectronPID &c);
136 ClassDef(AliDielectronPID,5) // Dielectron PID