1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 // Does PID either on a x% electron efficiency basis or on dE/dx
18 // For more information please check the implementation file
20 #ifndef ALIHFEPIDTRD_H
21 #define ALIHFEPIDTRD_H
23 #ifndef ALIHFEPIDBASE_H
24 #include "AliHFEpidBase.h"
28 class AliAODMCParticle;
30 class AliHFEcollection;
32 class AliOADBContainer;
38 class AliHFEpidTRD : public AliHFEpidBase{
48 kHistTRDlikeBefore = 0,
49 kHistTRDlikeAfter = 1,
50 kHistTRDthresholds = 2,
53 kHistOverallSpecies = 5
56 AliHFEpidTRD(const Char_t *name);
57 AliHFEpidTRD(const AliHFEpidTRD &ref);
58 AliHFEpidTRD& operator=(const AliHFEpidTRD &ref);
59 virtual ~AliHFEpidTRD();
61 virtual Bool_t InitializePID(Int_t run);
62 virtual Int_t IsSelected(const AliHFEpidObject *track, AliHFEpidQAmanager *pidqa) const;
64 Double_t GetTRDSignalV1(const AliESDtrack *track, Float_t truncation = 0.7) const;
65 Double_t GetTRDSignalV2(const AliESDtrack *track, Float_t trucation = 0.7) const;
67 Bool_t IsCalculateTRDSignals() const { return TestBit(kTRDsignals); }
68 Bool_t IsRenormalizeElPi() const { return TestBit(kTRDrenormalize); }
69 void SelectCutOnTheFly(Bool_t onFly = kTRUE) { if(onFly) SetBit(kSelectCutOnTheFly, kTRUE); else SetBit(kSelectCutOnTheFly, kFALSE);}
70 void SetOADBThresholds(AliOADBContainer *cont) { fOADBThresholds = cont; }
71 void SetTotalChargeInSlice0() { fTotalChargeInSlice0 = kTRUE; }
72 void SetRenormalizeElPi(Bool_t doRenorm = kTRUE) { if(doRenorm) SetBit(kTRDrenormalize, kTRUE); else SetBit(kTRDrenormalize, kFALSE);}
73 void SetElectronEfficiency(Double_t electronEfficiency) { fElectronEfficiency = electronEfficiency; }
74 void SetNTracklets(Int_t nTracklets) { fNTracklets = nTracklets; }
75 void SetMinP(Double_t p) { fMinP = p; }
76 void CalculateTRDSignals(Bool_t docalc) { SetBit(kTRDsignals, docalc); }
78 Double_t GetElectronLikelihood(const AliVTrack *track, AliHFEpidObject::AnalysisType_t anaType) const;
79 Int_t GetNTracklets() const { return fNTracklets; }
80 void GetTRDmomenta(const AliVTrack *track, Double_t *mom) const;
81 Double_t GetP(const AliVParticle *track, AliHFEpidObject::AnalysisType_t anaType) const;
82 Double_t GetTRDthresholds(Double_t p) const;
83 Double_t GetTRDthresholds(Double_t p, UInt_t nTracklets) const;
84 Double_t GetChargeLayer(const AliVParticle *track, UInt_t layer, AliHFEpidObject::AnalysisType_t anatype) const;
87 kTRDsignals = BIT(16),
88 kThresholdsInitialized = BIT(17),
89 kTRDrenormalize = BIT(18),
90 kSelectCutOnTheFly = BIT(19)
92 void Copy(TObject &ref) const;
93 Bool_t InitParamsFromOADB(Int_t run);
94 void RenormalizeElPi(const Double_t * const likein, Double_t * const likeout) const;
97 AliOADBContainer *fOADBThresholds; // OADBContainer with thresholds
98 Double_t fMinP; // Minimum momentum above which TRD PID is applied
99 Int_t fNTracklets; // Select cut for the number of tracklets
100 Int_t fRunNumber; // Run number
101 Double_t fElectronEfficiency; // Cut on electron efficiency
102 Double_t fThreshParams[kThreshParams]; // Threshold parametrisation
103 Bool_t fTotalChargeInSlice0; // Flag for foreward/backward compatibility for the TRD total charge
104 ClassDef(AliHFEpidTRD, 1) // TRD electron ID class