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 */
6 //---------------------------------------------------------------//
7 // Base class for handling the pid response //
8 // functions of all detectors //
9 // and give access to the nsigmas //
11 // Origin: Jens Wiechula, Uni Tuebingen, jens.wiechula@cern.ch //
12 //---------------------------------------------------------------//
14 #include "AliITSPIDResponse.h"
15 #include "AliTPCPIDResponse.h"
16 #include "AliTRDPIDResponse.h"
17 #include "AliTOFPIDResponse.h"
19 #include "AliVParticle.h"
20 #include "AliVTrack.h"
27 class AliPIDResponse : public TNamed {
29 AliPIDResponse(Bool_t isMC=kFALSE);
30 virtual ~AliPIDResponse();
42 enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0};
44 enum ITSPIDmethod { kITSTruncMean, kITSLikelihood };
52 AliITSPIDResponse &GetITSResponse() {return fITSResponse;}
53 AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;}
54 AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;}
55 AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;}
57 Float_t NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const;
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;
62 virtual Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Double_t efficiencyLevel) const;
64 EDetPidStatus ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
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;
75 void SetITSPIDmethod(ITSPIDmethod pmeth) { fITSPIDmethod = pmeth; }
76 virtual void SetTOFResponse(AliVEvent */*event*/,EStartTimeType_t /*option*/) {;}
77 void SetTRDslicesForPID(UInt_t slice1, UInt_t slice2) {fTRDslicesForPID[0]=slice1;fTRDslicesForPID[1]=slice2;}
79 void SetOADBPath(const char* path) {fOADBPath=path;}
80 void InitialiseEvent(AliVEvent *event, Int_t pass);
81 void SetCurrentFile(const char* file) { fCurrentFile=file; }
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;}
87 AliPIDResponse(const AliPIDResponse &other);
88 AliPIDResponse& operator=(const AliPIDResponse &other);
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
96 Float_t fRange; // nSigma max in likelihood
97 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
100 Bool_t fIsMC; // If we run on MC data
102 TString fOADBPath; // OADB path to use
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
107 TString fMCperiodUser; // MC prodution requested by the user
108 TString fCurrentFile; //! name of currently processed file
109 Int_t fRecoPass; //! reconstruction pass
110 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
111 Int_t fRun; //! current run number
112 Int_t fOldRun; //! current run number
114 TObjArray *fArrPidResponseMaster; //! TPC pid splines
115 TF1 *fResolutionCorrection; //! TPC resolution correction
117 TObjArray *fTRDPIDParams; //! TRD PID Params
118 AliTRDPIDReference *fTRDPIDReference; //! TRD PID References
119 UInt_t fTRDslicesForPID[2]; //! TRD PID slices
121 Int_t fTOFTimeZeroType; //! default start time type for tof (ESD)
122 Float_t fTOFres; //! TOF resolution
127 //setup parametrisations
131 void SetITSParametrisation();
134 void SetTPCPidResponseMaster();
135 void SetTPCParametrisation();
136 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
139 void SetTRDPidResponseMaster();
140 void InitializeTRDResponse();
147 ClassDef(AliPIDResponse,2); //PID response handling
150 inline 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();
156 Double_t nSigma = -999.;
157 if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
162 inline 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.;
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;
172 Float_t mom=track->P();
174 if(track->GetTPCNcls()>0) isSA=kFALSE;
175 return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA);