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"
28 class AliTRDPIDResponseObject;
30 class AliPIDResponse : public TNamed {
32 AliPIDResponse(Bool_t isMC=kFALSE);
33 virtual ~AliPIDResponse();
45 enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0};
47 enum ITSPIDmethod { kITSTruncMean, kITSLikelihood };
55 AliITSPIDResponse &GetITSResponse() {return fITSResponse;}
56 AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;}
57 AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;}
58 AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;}
59 AliEMCALPIDResponse &GetEMCALResponse() {return fEMCALResponse;}
61 Float_t NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const;
63 virtual Float_t NumberOfSigmasITS(const AliVParticle *track, AliPID::EParticleType type) const;
64 virtual Float_t NumberOfSigmasTPC(const AliVParticle *track, AliPID::EParticleType type) const;
65 virtual Float_t NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type) const;
66 virtual Float_t NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const;
67 virtual Float_t NumberOfSigmasTOF(const AliVParticle *track, AliPID::EParticleType type) const = 0;
68 virtual Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Double_t efficiencyLevel) const;
70 EDetPidStatus ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
72 EDetPidStatus ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
73 EDetPidStatus ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
74 EDetPidStatus ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
75 EDetPidStatus ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
76 EDetPidStatus ComputeEMCALProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
77 EDetPidStatus ComputePHOSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
78 EDetPidStatus ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
80 void SetTRDPIDmethod(AliTRDPIDResponse::ETRDPIDMethod method=AliTRDPIDResponse::kLQ1D);
82 void SetITSPIDmethod(ITSPIDmethod pmeth) { fITSPIDmethod = pmeth; }
83 void SetTRDslicesForPID(UInt_t slice1, UInt_t slice2) {fTRDslicesForPID[0]=slice1;fTRDslicesForPID[1]=slice2;}
85 void SetOADBPath(const char* path) {fOADBPath=path;}
86 const char *GetOADBPath() const {return fOADBPath.Data();}
87 void InitialiseEvent(AliVEvent *event, Int_t pass);
88 void SetCurrentFile(const char* file) { fCurrentFile=file; }
90 AliVEvent * GetCurrentEvent() const {return fCurrentEvent;}
92 // User settings for the MC period and reco pass
93 void SetMCperiod(const char *mcPeriod) {fMCperiodUser=mcPeriod;}
94 void SetRecoPass(Int_t recoPass) {fRecoPassUser=recoPass;}
97 Float_t GetCurrentCentrality() const {return fCurrCentrality;};
100 void SetTOFtail(Float_t tail=1.1){if(tail > 0) fTOFtail=tail; else printf("TOF tail should be greater than 0 (nothing done)\n");};
101 void SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option);
103 virtual Float_t GetTPCsignalTunedOnData(const AliVTrack *t) const {return t->GetTPCsignal();};
104 Bool_t IsTunedOnData() const {return fTuneMConData;};
105 void SetTunedOnData(Bool_t flag=kTRUE,Int_t recoPass=0){fTuneMConData = flag; if(recoPass>0) fRecoPassUser = recoPass;};
107 AliPIDResponse(const AliPIDResponse &other);
108 AliPIDResponse& operator=(const AliPIDResponse &other);
112 AliITSPIDResponse fITSResponse; //PID response function of the ITS
113 AliTPCPIDResponse fTPCResponse; //PID response function of the TPC
114 AliTRDPIDResponse fTRDResponse; //PID response function of the TRD
115 AliTOFPIDResponse fTOFResponse; //PID response function of the TOF
116 AliEMCALPIDResponse fEMCALResponse; //PID response function of the EMCAL
118 Float_t fRange; // nSigma max in likelihood
119 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
122 Bool_t fIsMC; // If we run on MC data
124 TString fOADBPath; // OADB path to use
126 TString fBeamType; //! beam type (PP) or (PBPB)
127 TString fLHCperiod; //! LHC period
128 TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines
129 TString fMCperiodUser; // MC prodution requested by the user
130 TString fCurrentFile; //! name of currently processed file
131 Int_t fRecoPass; //! reconstruction pass
132 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
133 Int_t fRun; //! current run number
134 Int_t fOldRun; //! current run number
136 TObjArray *fArrPidResponseMaster; //! TPC pid splines
137 TF1 *fResolutionCorrection; //! TPC resolution correction
139 AliTRDPIDResponseObject *fTRDPIDResponseObject; //! TRD PID Response Object
140 UInt_t fTRDslicesForPID[2]; //! TRD PID slices
142 Float_t fTOFtail; //! TOF tail effect used in TOF probability
143 AliTOFPIDParams *fTOFPIDParams; //! TOF PID Params - period depending (OADB loaded)
145 TObjArray *fEMCALPIDParams; //! EMCAL PID Params
147 AliVEvent *fCurrentEvent; //! event currently being processed
149 Float_t fCurrCentrality; //! current centrality
151 Bool_t fTuneMConData; // switch to force the MC to be similar to data (dE/dx)
156 //setup parametrisations
160 void SetITSParametrisation();
163 void SetTPCPidResponseMaster();
164 void SetTPCParametrisation();
165 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
168 void SetTRDPidResponseMaster();
169 void InitializeTRDResponse();
172 void SetTOFPidResponseMaster();
173 void InitializeTOFResponse();
176 void SetEMCALPidResponseMaster();
177 void InitializeEMCALResponse();
182 ClassDef(AliPIDResponse, 8); //PID response handling
185 inline Float_t AliPIDResponse::NumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const {
186 AliVTrack *track=(AliVTrack*)vtrack;
187 Double_t mom = track->GetTPCmomentum();
188 Double_t sig = track->GetTPCsignal();
189 UInt_t sigN = track->GetTPCsignalN();
191 if(fTuneMConData) sig = GetTPCsignalTunedOnData(track);
193 Double_t nSigma = -999.;
194 if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type);
199 inline Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const {
200 AliVTrack *track=(AliVTrack*)vtrack;
201 Float_t dEdx=track->GetITSsignal();
202 if (dEdx<=0) return -999.;
204 UChar_t clumap=track->GetITSClusterMap();
205 Int_t nPointsForPid=0;
206 for(Int_t i=2; i<6; i++){
207 if(clumap&(1<<i)) ++nPointsForPid;
209 Float_t mom=track->P();
211 if(track->GetTPCNcls()>0) isSA=kFALSE;
212 return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA);