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"
18 #include "AliEMCALPIDResponse.h"
20 #include "AliVParticle.h"
21 #include "AliVTrack.h"
28 class AliPIDResponse : public TNamed {
30 AliPIDResponse(Bool_t isMC=kFALSE);
31 virtual ~AliPIDResponse();
43 enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0};
45 enum ITSPIDmethod { kITSTruncMean, kITSLikelihood };
53 AliITSPIDResponse &GetITSResponse() {return fITSResponse;}
54 AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;}
55 AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;}
56 AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;}
57 AliEMCALPIDResponse &GetEMCALResponse() {return fEMCALResponse;}
59 Float_t NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const;
61 virtual Float_t NumberOfSigmasITS(const AliVParticle *track, AliPID::EParticleType type) const;
62 virtual Float_t NumberOfSigmasTPC(const AliVParticle *track, AliPID::EParticleType type) const;
63 virtual Float_t NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type) const;
64 virtual Float_t NumberOfSigmasTOF(const AliVParticle *track, AliPID::EParticleType type) const = 0;
65 virtual Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Double_t efficiencyLevel) const;
67 EDetPidStatus ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
69 EDetPidStatus ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
70 EDetPidStatus ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
71 EDetPidStatus ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
72 EDetPidStatus ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
73 EDetPidStatus ComputeEMCALProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
74 EDetPidStatus ComputePHOSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
75 EDetPidStatus ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
78 void SetITSPIDmethod(ITSPIDmethod pmeth) { fITSPIDmethod = pmeth; }
79 virtual void SetTOFResponse(AliVEvent */*event*/,EStartTimeType_t /*option*/) {;}
80 void SetTRDslicesForPID(UInt_t slice1, UInt_t slice2) {fTRDslicesForPID[0]=slice1;fTRDslicesForPID[1]=slice2;}
82 void SetOADBPath(const char* path) {fOADBPath=path;}
83 void InitialiseEvent(AliVEvent *event, Int_t pass);
84 void SetCurrentFile(const char* file) { fCurrentFile=file; }
86 AliVEvent * GetCurrentEvent() const {return fCurrentEvent;}
88 // User settings for the MC period and reco pass
89 void SetMCperiod(const char *mcPeriod) {fMCperiodUser=mcPeriod;}
90 void SetRecoPass(Int_t recoPass) {fRecoPassUser=recoPass;}
92 AliPIDResponse(const AliPIDResponse &other);
93 AliPIDResponse& operator=(const AliPIDResponse &other);
96 AliITSPIDResponse fITSResponse; //PID response function of the ITS
97 AliTPCPIDResponse fTPCResponse; //PID response function of the TPC
98 AliTRDPIDResponse fTRDResponse; //PID response function of the TRD
99 AliTOFPIDResponse fTOFResponse; //PID response function of the TOF
100 AliEMCALPIDResponse fEMCALResponse; //PID response function of the EMCAL
102 Float_t fRange; // nSigma max in likelihood
103 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
106 Bool_t fIsMC; // If we run on MC data
108 TString fOADBPath; // OADB path to use
110 TString fBeamType; //! beam type (PP) or (PBPB)
111 TString fLHCperiod; //! LHC period
112 TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines
113 TString fMCperiodUser; // MC prodution requested by the user
114 TString fCurrentFile; //! name of currently processed file
115 Int_t fRecoPass; //! reconstruction pass
116 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
117 Int_t fRun; //! current run number
118 Int_t fOldRun; //! current run number
120 TObjArray *fArrPidResponseMaster; //! TPC pid splines
121 TF1 *fResolutionCorrection; //! TPC resolution correction
123 AliTRDPIDParams *fTRDPIDParams; //! TRD PID Params
124 AliTRDPIDReference *fTRDPIDReference; //! TRD PID References
125 UInt_t fTRDslicesForPID[2]; //! TRD PID slices
127 Int_t fTOFTimeZeroType; //! default start time type for tof (ESD)
128 Float_t fTOFres; //! TOF resolution
130 TObjArray *fEMCALPIDParams; //! EMCAL PID Params
132 AliVEvent *fCurrentEvent; //! event currently being processed
137 //setup parametrisations
141 void SetITSParametrisation();
144 void SetTPCPidResponseMaster();
145 void SetTPCParametrisation();
146 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
149 void SetTRDPidResponseMaster();
150 void InitializeTRDResponse();
155 void SetEMCALPidResponseMaster();
156 void InitializeEMCALResponse();
161 ClassDef(AliPIDResponse,3); //PID response handling
164 inline Float_t AliPIDResponse::NumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const {
165 AliVTrack *track=(AliVTrack*)vtrack;
166 Double_t mom = track->GetTPCmomentum();
167 Double_t sig = track->GetTPCsignal();
168 UInt_t sigN = track->GetTPCsignalN();
170 Double_t nSigma = -999.;
171 if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
176 inline Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const {
177 AliVTrack *track=(AliVTrack*)vtrack;
178 Float_t dEdx=track->GetITSsignal();
179 if (dEdx<=0) return -999.;
181 UChar_t clumap=track->GetITSClusterMap();
182 Int_t nPointsForPid=0;
183 for(Int_t i=2; i<6; i++){
184 if(clumap&(1<<i)) ++nPointsForPid;
186 Float_t mom=track->P();
188 if(track->GetTPCNcls()>0) isSA=kFALSE;
189 return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA);