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"
21 #include "AliVParticle.h"
22 #include "AliVTrack.h"
29 class AliPIDResponse : public TNamed {
31 AliPIDResponse(Bool_t isMC=kFALSE);
32 virtual ~AliPIDResponse();
44 enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0};
46 enum ITSPIDmethod { kITSTruncMean, kITSLikelihood };
54 AliITSPIDResponse &GetITSResponse() {return fITSResponse;}
55 AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;}
56 AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;}
57 AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;}
58 AliEMCALPIDResponse &GetEMCALResponse() {return fEMCALResponse;}
60 Float_t NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const;
62 virtual Float_t NumberOfSigmasITS(const AliVParticle *track, AliPID::EParticleType type) const;
63 virtual Float_t NumberOfSigmasTPC(const AliVParticle *track, AliPID::EParticleType type) const;
64 virtual Float_t NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type) const;
65 virtual Float_t NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const;
66 virtual Float_t NumberOfSigmasTOF(const AliVParticle *track, AliPID::EParticleType type) const = 0;
67 virtual Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Double_t efficiencyLevel) const;
69 EDetPidStatus ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
71 EDetPidStatus ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
72 EDetPidStatus ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
73 EDetPidStatus ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
74 EDetPidStatus ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
75 EDetPidStatus ComputeEMCALProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
76 EDetPidStatus ComputePHOSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
77 EDetPidStatus ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
80 void SetITSPIDmethod(ITSPIDmethod pmeth) { fITSPIDmethod = pmeth; }
81 void SetTRDslicesForPID(UInt_t slice1, UInt_t slice2) {fTRDslicesForPID[0]=slice1;fTRDslicesForPID[1]=slice2;}
83 void SetOADBPath(const char* path) {fOADBPath=path;}
84 const char *GetOADBPath() const {return fOADBPath.Data();}
85 void InitialiseEvent(AliVEvent *event, Int_t pass);
86 void SetCurrentFile(const char* file) { fCurrentFile=file; }
88 AliVEvent * GetCurrentEvent() const {return fCurrentEvent;}
90 // User settings for the MC period and reco pass
91 void SetMCperiod(const char *mcPeriod) {fMCperiodUser=mcPeriod;}
92 void SetRecoPass(Int_t recoPass) {fRecoPassUser=recoPass;}
95 Float_t GetCurrentCentrality() const {return fCurrCentrality;};
98 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 void SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option);
101 AliPIDResponse(const AliPIDResponse &other);
102 AliPIDResponse& operator=(const AliPIDResponse &other);
106 AliITSPIDResponse fITSResponse; //PID response function of the ITS
107 AliTPCPIDResponse fTPCResponse; //PID response function of the TPC
108 AliTRDPIDResponse fTRDResponse; //PID response function of the TRD
109 AliTOFPIDResponse fTOFResponse; //PID response function of the TOF
110 AliEMCALPIDResponse fEMCALResponse; //PID response function of the EMCAL
112 Float_t fRange; // nSigma max in likelihood
113 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
116 Bool_t fIsMC; // If we run on MC data
118 TString fOADBPath; // OADB path to use
120 TString fBeamType; //! beam type (PP) or (PBPB)
121 TString fLHCperiod; //! LHC period
122 TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines
123 TString fMCperiodUser; // MC prodution requested by the user
124 TString fCurrentFile; //! name of currently processed file
125 Int_t fRecoPass; //! reconstruction pass
126 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
127 Int_t fRun; //! current run number
128 Int_t fOldRun; //! current run number
130 TObjArray *fArrPidResponseMaster; //! TPC pid splines
131 TF1 *fResolutionCorrection; //! TPC resolution correction
133 AliTRDPIDParams *fTRDPIDParams; //! TRD PID Params
134 AliTRDPIDReference *fTRDPIDReference; //! TRD PID References
135 UInt_t fTRDslicesForPID[2]; //! TRD PID slices
137 Float_t fTOFtail; //! TOF tail effect used in TOF probability
138 AliTOFPIDParams *fTOFPIDParams; //! TOF PID Params - period depending (OADB loaded)
140 TObjArray *fEMCALPIDParams; //! EMCAL PID Params
142 AliVEvent *fCurrentEvent; //! event currently being processed
144 Float_t fCurrCentrality; //! current centrality
149 //setup parametrisations
153 void SetITSParametrisation();
156 void SetTPCPidResponseMaster();
157 void SetTPCParametrisation();
158 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
161 void SetTRDPidResponseMaster();
162 void InitializeTRDResponse();
165 void SetTOFPidResponseMaster();
166 void InitializeTOFResponse();
169 void SetEMCALPidResponseMaster();
170 void InitializeEMCALResponse();
175 ClassDef(AliPIDResponse,6); //PID response handling
178 inline Float_t AliPIDResponse::NumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const {
179 AliVTrack *track=(AliVTrack*)vtrack;
180 Double_t mom = track->GetTPCmomentum();
181 Double_t sig = track->GetTPCsignal();
182 UInt_t sigN = track->GetTPCsignalN();
184 Double_t nSigma = -999.;
185 if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
190 inline Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const {
191 AliVTrack *track=(AliVTrack*)vtrack;
192 Float_t dEdx=track->GetITSsignal();
193 if (dEdx<=0) return -999.;
195 UChar_t clumap=track->GetITSClusterMap();
196 Int_t nPointsForPid=0;
197 for(Int_t i=2; i<6; i++){
198 if(clumap&(1<<i)) ++nPointsForPid;
200 Float_t mom=track->P();
202 if(track->GetTPCNcls()>0) isSA=kFALSE;
203 return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA);