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 const char *GetOADBPath() const {return fOADBPath.Data();}
84 void InitialiseEvent(AliVEvent *event, Int_t pass);
85 void SetCurrentFile(const char* file) { fCurrentFile=file; }
87 AliVEvent * GetCurrentEvent() const {return fCurrentEvent;}
89 // User settings for the MC period and reco pass
90 void SetMCperiod(const char *mcPeriod) {fMCperiodUser=mcPeriod;}
91 void SetRecoPass(Int_t recoPass) {fRecoPassUser=recoPass;}
94 Float_t GetCurrentCentrality() const {return fCurrCentrality;};
97 void SetTOFtail(Float_t tail=1.1){if(tail > 0) fTOFtail=tail; else printf("TOF tail should be greater than 0 (nothing done)\n");};
99 AliPIDResponse(const AliPIDResponse &other);
100 AliPIDResponse& operator=(const AliPIDResponse &other);
104 AliITSPIDResponse fITSResponse; //PID response function of the ITS
105 AliTPCPIDResponse fTPCResponse; //PID response function of the TPC
106 AliTRDPIDResponse fTRDResponse; //PID response function of the TRD
107 AliTOFPIDResponse fTOFResponse; //PID response function of the TOF
108 AliEMCALPIDResponse fEMCALResponse; //PID response function of the EMCAL
110 Float_t fRange; // nSigma max in likelihood
111 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
114 Bool_t fIsMC; // If we run on MC data
116 TString fOADBPath; // OADB path to use
118 TString fBeamType; //! beam type (PP) or (PBPB)
119 TString fLHCperiod; //! LHC period
120 TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines
121 TString fMCperiodUser; // MC prodution requested by the user
122 TString fCurrentFile; //! name of currently processed file
123 Int_t fRecoPass; //! reconstruction pass
124 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
125 Int_t fRun; //! current run number
126 Int_t fOldRun; //! current run number
128 TObjArray *fArrPidResponseMaster; //! TPC pid splines
129 TF1 *fResolutionCorrection; //! TPC resolution correction
131 AliTRDPIDParams *fTRDPIDParams; //! TRD PID Params
132 AliTRDPIDReference *fTRDPIDReference; //! TRD PID References
133 UInt_t fTRDslicesForPID[2]; //! TRD PID slices
135 Int_t fTOFTimeZeroType; //! default start time type for tof (ESD)
136 Float_t fTOFres; //! TOF resolution
137 Float_t fTOFtail; //! TOF tail effect used in TOF probability
139 TObjArray *fEMCALPIDParams; //! EMCAL PID Params
141 AliVEvent *fCurrentEvent; //! event currently being processed
143 Float_t fCurrCentrality; //! current centrality
148 //setup parametrisations
152 void SetITSParametrisation();
155 void SetTPCPidResponseMaster();
156 void SetTPCParametrisation();
157 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
160 void SetTRDPidResponseMaster();
161 void InitializeTRDResponse();
166 void SetEMCALPidResponseMaster();
167 void InitializeEMCALResponse();
172 ClassDef(AliPIDResponse,5); //PID response handling
175 inline Float_t AliPIDResponse::NumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const {
176 AliVTrack *track=(AliVTrack*)vtrack;
177 Double_t mom = track->GetTPCmomentum();
178 Double_t sig = track->GetTPCsignal();
179 UInt_t sigN = track->GetTPCsignalN();
181 Double_t nSigma = -999.;
182 if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
187 inline Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const {
188 AliVTrack *track=(AliVTrack*)vtrack;
189 Float_t dEdx=track->GetITSsignal();
190 if (dEdx<=0) return -999.;
192 UChar_t clumap=track->GetITSClusterMap();
193 Int_t nPointsForPid=0;
194 for(Int_t i=2; i<6; i++){
195 if(clumap&(1<<i)) ++nPointsForPid;
197 Float_t mom=track->P();
199 if(track->GetTPCNcls()>0) isSA=kFALSE;
200 return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA);