Wrong coordinate was used for vertex chi2 calculation
[u/mrichter/AliRoot.git] / STEER / STEERBase / AliPIDResponse.h
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29bf19f2 1#ifndef ALIPIDRESPONSE_H
2#define ALIPIDRESPONSE_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6//---------------------------------------------------------------//
7// Base class for handling the pid response //
8// functions of all detectors //
9// and give access to the nsigmas //
10// //
11// Origin: Jens Wiechula, Uni Tuebingen, jens.wiechula@cern.ch //
12//---------------------------------------------------------------//
13
14#include "AliITSPIDResponse.h"
15#include "AliTPCPIDResponse.h"
16#include "AliTRDPIDResponse.h"
17#include "AliTOFPIDResponse.h"
18
19#include "AliVParticle.h"
20#include "AliVTrack.h"
21
22#include "TNamed.h"
23
24class AliVEvent;
4ec8e76d 25class TF1;
29bf19f2 26
27class AliPIDResponse : public TNamed {
28public:
4ec8e76d 29 AliPIDResponse(Bool_t isMC=kFALSE);
30 virtual ~AliPIDResponse();
29bf19f2 31
fd21ec8d 32 enum EDetCode {
33 kDetITS = 0x1,
34 kDetTPC = 0x2,
35 kDetTRD = 0x4,
36 kDetTOF = 0x8,
37 kDetHMPID = 0x10,
38 kDetEMCAL = 0x20,
39 kDetPHOS = 0x40
40 };
41
29bf19f2 42 enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0};
fd21ec8d 43
44 enum ITSPIDmethod { kITSTruncMean, kITSLikelihood };
45
46 enum EDetPidStatus {
47 kDetNoSignal=0,
48 kDetPidOk=1,
49 kDetMismatch=2
50 };
29bf19f2 51
52 AliITSPIDResponse &GetITSResponse() {return fITSResponse;}
53 AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;}
54 AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;}
55 AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;}
fd21ec8d 56
57 Float_t NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const;
29bf19f2 58
59 virtual Float_t NumberOfSigmasITS(const AliVParticle *track, AliPID::EParticleType type) const;
60 virtual Float_t NumberOfSigmasTPC(const AliVParticle *track, AliPID::EParticleType type) const;
61 virtual Float_t NumberOfSigmasTOF(const AliVParticle *track, AliPID::EParticleType type) const = 0;
ea235c90 62 virtual Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Double_t efficiencyLevel) const;
29bf19f2 63
fd21ec8d 64 EDetPidStatus ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
65
66 EDetPidStatus ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
67 EDetPidStatus ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
68 EDetPidStatus ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
69 EDetPidStatus ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
70 EDetPidStatus ComputeEMCALProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
71 EDetPidStatus ComputePHOSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
72 EDetPidStatus ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
73
74
75 void SetITSPIDmethod(ITSPIDmethod pmeth) { fITSPIDmethod = pmeth; }
4ec8e76d 76 virtual void SetTOFResponse(AliVEvent */*event*/,EStartTimeType_t /*option*/) {;}
ea235c90 77 void SetTRDslicesForPID(UInt_t slice1, UInt_t slice2) {fTRDslicesForPID[0]=slice1;fTRDslicesForPID[1]=slice2;}
78
4ec8e76d 79 void SetOADBPath(const char* path) {fOADBPath=path;}
80 void InitialiseEvent(AliVEvent *event, Int_t pass);
ea235c90 81 void SetCurrentFile(const char* file) { fCurrentFile=file; }
4ec8e76d 82
fd21ec8d 83 // User settings for the MC period and reco pass
84 void SetMCperiod(const char *mcPeriod) {fMCperiodUser=mcPeriod;}
85 void SetRecoPass(Int_t recoPass) {fRecoPassUser=recoPass;}
86
4ec8e76d 87 AliPIDResponse(const AliPIDResponse &other);
88 AliPIDResponse& operator=(const AliPIDResponse &other);
29bf19f2 89
90protected:
91 AliITSPIDResponse fITSResponse; //PID response function of the ITS
92 AliTPCPIDResponse fTPCResponse; //PID response function of the TPC
93 AliTRDPIDResponse fTRDResponse; //PID response function of the TRD
94 AliTOFPIDResponse fTOFResponse; //PID response function of the TOF
4ec8e76d 95
fd21ec8d 96 Float_t fRange; // nSigma max in likelihood
97 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
98
4ec8e76d 99private:
100 Bool_t fIsMC; // If we run on MC data
101
102 TString fOADBPath; // OADB path to use
103
104 TString fBeamType; //! beam type (PP) or (PBPB)
105 TString fLHCperiod; //! LHC period
106 TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines
fd21ec8d 107 TString fMCperiodUser; // MC prodution requested by the user
ea235c90 108 TString fCurrentFile; //! name of currently processed file
4ec8e76d 109 Int_t fRecoPass; //! reconstruction pass
fd21ec8d 110 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
4ec8e76d 111 Int_t fRun; //! current run number
112 Int_t fOldRun; //! current run number
fd21ec8d 113
4ec8e76d 114 TObjArray *fArrPidResponseMaster; //! TPC pid splines
115 TF1 *fResolutionCorrection; //! TPC resolution correction
116
ea235c90 117 TObjArray *fTRDPIDParams; //! TRD PID Params
118 AliTRDPIDReference *fTRDPIDReference; //! TRD PID References
119 UInt_t fTRDslicesForPID[2]; //! TRD PID slices
120
4ec8e76d 121 Int_t fTOFTimeZeroType; //! default start time type for tof (ESD)
122 Float_t fTOFres; //! TOF resolution
123
124 void ExecNewRun();
125
126 //
127 //setup parametrisations
128 //
129
130 //ITS
131 void SetITSParametrisation();
132
133 //TPC
134 void SetTPCPidResponseMaster();
135 void SetTPCParametrisation();
136 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
137
ea235c90 138 //TRD
139 void SetTRDPidResponseMaster();
140 void InitializeTRDResponse();
141
4ec8e76d 142 //TOF
143
144 //
145 void SetRecoInfo();
29bf19f2 146
4ec8e76d 147 ClassDef(AliPIDResponse,2); //PID response handling
29bf19f2 148};
149
150inline Float_t AliPIDResponse::NumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const {
151 AliVTrack *track=(AliVTrack*)vtrack;
152 Double_t mom = track->GetTPCmomentum();
153 Double_t sig = track->GetTPCsignal();
154 UInt_t sigN = track->GetTPCsignalN();
155
156 Double_t nSigma = -999.;
157 if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
158
159 return nSigma;
160}
161
162inline Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const {
163 AliVTrack *track=(AliVTrack*)vtrack;
164 Float_t dEdx=track->GetITSsignal();
165 if (dEdx<=0) return -999.;
166
167 UChar_t clumap=track->GetITSClusterMap();
168 Int_t nPointsForPid=0;
169 for(Int_t i=2; i<6; i++){
170 if(clumap&(1<<i)) ++nPointsForPid;
171 }
172 Float_t mom=track->P();
173 Bool_t isSA=kTRUE;
174 if(track->GetTPCNcls()>0) isSA=kFALSE;
175 return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA);
176}
177
178#endif