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ba15fdfb | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | // | |
16 | // TRD PID Cut Class | |
17 | // Does PID either on a x% electron efficiency basis or on dE/dx | |
18 | // For more information please check the implementation file | |
19 | // | |
20 | #ifndef ALIDIELECTRONTRDPIDCUT_H | |
21 | #define ALIDIELECTRONTRDPIDCUT_H | |
22 | ||
23 | #include <AliAnalysisCuts.h> | |
24 | ||
25 | class AliESDtrack; | |
26 | class AliVParticle; | |
27 | ||
28 | class AliDielectronTRDpidCut : public AliAnalysisCuts{ | |
29 | public: | |
30 | typedef enum{ | |
31 | kLQ = 0, | |
32 | kNN = 1 | |
33 | } PIDMethodTRD_t; | |
34 | enum{ | |
35 | kThreshParams = 24 | |
36 | }; | |
37 | enum{ | |
38 | kHistTRDlikeBefore = 0, | |
39 | kHistTRDlikeAfter = 1, | |
40 | kHistTRDthresholds = 2, | |
41 | kHistTRDSigV1 = 3, | |
42 | kHistTRDSigV2 = 4, | |
43 | kHistOverallSpecies = 5 | |
44 | }; | |
45 | enum PIDbitType {kIgnore=0, kRequire, kIfAvailable}; | |
46 | AliDielectronTRDpidCut(); | |
47 | AliDielectronTRDpidCut(const Char_t *name); | |
48 | AliDielectronTRDpidCut(const AliDielectronTRDpidCut &ref); | |
49 | AliDielectronTRDpidCut& operator=(const AliDielectronTRDpidCut &ref); | |
50 | virtual ~AliDielectronTRDpidCut(); | |
51 | ||
52 | virtual Bool_t InitializePID(); | |
53 | ||
54 | Double_t GetTRDSignalV1(const AliESDtrack *track, Float_t truncation = 0.7) const; | |
55 | Double_t GetTRDSignalV2(const AliESDtrack *track, Float_t trucation = 0.7) const; | |
56 | ||
57 | Bool_t IsCalculateTRDSignals() const { return TestBit(kTRDsignals); } | |
58 | Bool_t IsRenormalizeElPi() const { return TestBit(kTRDrenormalize); } | |
59 | void SetPIDBitType(UInt_t pidBitType=AliDielectronTRDpidCut::kRequire) { fRequirePIDbit = pidBitType; }; | |
60 | void SetPIDMethod(PIDMethodTRD_t method) { fPIDMethod = method; }; | |
61 | void SetRenormalizeElPi(Bool_t doRenorm = kTRUE) { if(doRenorm) SetBit(kTRDrenormalize, kTRUE); else SetBit(kTRDrenormalize, kFALSE);} | |
62 | void SetElectronEfficiency(Double_t electronEfficiency) { fElectronEfficiency = electronEfficiency; } | |
63 | void SetThresholdParameters(Double_t electronEff, Double_t *params); | |
64 | void SetMinP(Double_t p) { fMinP = p; } | |
65 | void CalculateTRDSignals(Bool_t docalc) { SetBit(kTRDsignals, docalc); } | |
66 | ||
67 | Double_t GetElectronLikelihood(const AliVParticle *track) const; | |
68 | void GetTRDmomenta(const AliVParticle *track, Double_t *mom) const; | |
69 | Double_t GetP(const AliVParticle *track) const; | |
70 | Double_t GetTRDthresholds(Double_t electronEff, Double_t p) const; | |
71 | Double_t GetChargeLayer(const AliVParticle *track, UInt_t layer) const; | |
72 | ||
73 | // | |
74 | //Analysis cuts interface | |
75 | // | |
76 | virtual Bool_t IsSelected(TObject* track); | |
77 | virtual Bool_t IsSelected(TList* /* list */ ) {return kFALSE;} | |
78 | ||
79 | protected: | |
80 | enum{ | |
81 | kTRDsignals = BIT(16), | |
82 | kTRDdefaultThresholds = BIT(17), | |
83 | kTRDrenormalize = BIT(18) | |
84 | }; | |
85 | void Copy(TObject &ref) const; | |
86 | void InitParameters(); | |
87 | void InitParameters1DLQ(); | |
88 | void GetParameters(Double_t electronEff, Double_t *parameters) const; | |
89 | void SetUseDefaultParameters(Bool_t useDefault = kTRUE) { SetBit(kTRDdefaultThresholds, useDefault); } | |
90 | Bool_t UseDefaultParameters() const { return TestBit(kTRDdefaultThresholds); } | |
91 | void RenormalizeElPi(const Double_t *likein, Double_t *likeout) const; | |
92 | ||
93 | private: | |
94 | static const Double_t fgkVerySmall; // Check for 0 | |
95 | Double_t fMinP; // Minimum momentum above which TRD PID is applied | |
96 | Double_t fElectronEfficiency; // Cut on electron efficiency | |
97 | PIDMethodTRD_t fPIDMethod; // PID Method: 2D Likelihood or Neural Network | |
98 | UChar_t fRequirePIDbit; //How to make use of the pid bit (see) | |
99 | Double_t fThreshParams[kThreshParams]; // Threshold parametrisation | |
100 | ClassDef(AliDielectronTRDpidCut, 1) // TRD electron ID class | |
101 | }; | |
102 | ||
103 | #endif |