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29bf19f2 | 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 */ | |
5 | ||
6 | //---------------------------------------------------------------// | |
7 | // Base class for handling the pid response // | |
8 | // functions of all detectors // | |
9 | // and give access to the nsigmas // | |
10 | // // | |
11 | // Origin: Jens Wiechula, Uni Tuebingen, jens.wiechula@cern.ch // | |
12 | //---------------------------------------------------------------// | |
13 | ||
14 | #include "AliITSPIDResponse.h" | |
15 | #include "AliTPCPIDResponse.h" | |
16 | #include "AliTRDPIDResponse.h" | |
17 | #include "AliTOFPIDResponse.h" | |
18 | ||
19 | #include "AliVParticle.h" | |
20 | #include "AliVTrack.h" | |
21 | ||
22 | #include "TNamed.h" | |
23 | ||
24 | class AliVEvent; | |
4ec8e76d | 25 | class TF1; |
29bf19f2 | 26 | |
27 | class AliPIDResponse : public TNamed { | |
28 | public: | |
4ec8e76d | 29 | AliPIDResponse(Bool_t isMC=kFALSE); |
30 | virtual ~AliPIDResponse(); | |
29bf19f2 | 31 | |
32 | enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0}; | |
33 | ||
34 | AliITSPIDResponse &GetITSResponse() {return fITSResponse;} | |
35 | AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;} | |
36 | AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;} | |
37 | AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;} | |
38 | ||
39 | virtual Float_t NumberOfSigmasITS(const AliVParticle *track, AliPID::EParticleType type) const; | |
40 | virtual Float_t NumberOfSigmasTPC(const AliVParticle *track, AliPID::EParticleType type) const; | |
41 | virtual Float_t NumberOfSigmasTOF(const AliVParticle *track, AliPID::EParticleType type) const = 0; | |
42 | ||
4ec8e76d | 43 | virtual void SetTOFResponse(AliVEvent */*event*/,EStartTimeType_t /*option*/) {;} |
44 | ||
45 | void SetOADBPath(const char* path) {fOADBPath=path;} | |
46 | void InitialiseEvent(AliVEvent *event, Int_t pass); | |
47 | ||
48 | AliPIDResponse(const AliPIDResponse &other); | |
49 | AliPIDResponse& operator=(const AliPIDResponse &other); | |
29bf19f2 | 50 | |
51 | protected: | |
52 | AliITSPIDResponse fITSResponse; //PID response function of the ITS | |
53 | AliTPCPIDResponse fTPCResponse; //PID response function of the TPC | |
54 | AliTRDPIDResponse fTRDResponse; //PID response function of the TRD | |
55 | AliTOFPIDResponse fTOFResponse; //PID response function of the TOF | |
4ec8e76d | 56 | |
57 | private: | |
58 | Bool_t fIsMC; // If we run on MC data | |
59 | ||
60 | TString fOADBPath; // OADB path to use | |
61 | ||
62 | TString fBeamType; //! beam type (PP) or (PBPB) | |
63 | TString fLHCperiod; //! LHC period | |
64 | TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines | |
65 | Int_t fRecoPass; //! reconstruction pass | |
66 | Int_t fRun; //! current run number | |
67 | Int_t fOldRun; //! current run number | |
68 | ||
69 | TObjArray *fArrPidResponseMaster; //! TPC pid splines | |
70 | TF1 *fResolutionCorrection; //! TPC resolution correction | |
71 | ||
72 | Int_t fTOFTimeZeroType; //! default start time type for tof (ESD) | |
73 | Float_t fTOFres; //! TOF resolution | |
74 | ||
75 | void ExecNewRun(); | |
76 | ||
77 | // | |
78 | //setup parametrisations | |
79 | // | |
80 | ||
81 | //ITS | |
82 | void SetITSParametrisation(); | |
83 | ||
84 | //TPC | |
85 | void SetTPCPidResponseMaster(); | |
86 | void SetTPCParametrisation(); | |
87 | Double_t GetTPCMultiplicityBin(const AliVEvent * const event); | |
88 | ||
89 | //TOF | |
90 | ||
91 | // | |
92 | void SetRecoInfo(); | |
29bf19f2 | 93 | |
4ec8e76d | 94 | ClassDef(AliPIDResponse,2); //PID response handling |
29bf19f2 | 95 | }; |
96 | ||
97 | inline Float_t AliPIDResponse::NumberOfSigmasTPC(const AliVParticle *vtrack, AliPID::EParticleType type) const { | |
98 | AliVTrack *track=(AliVTrack*)vtrack; | |
99 | Double_t mom = track->GetTPCmomentum(); | |
100 | Double_t sig = track->GetTPCsignal(); | |
101 | UInt_t sigN = track->GetTPCsignalN(); | |
102 | ||
103 | Double_t nSigma = -999.; | |
104 | if (sigN>0) nSigma=fTPCResponse.GetNumberOfSigmas(mom,sig,sigN,type); | |
105 | ||
106 | return nSigma; | |
107 | } | |
108 | ||
109 | inline Float_t AliPIDResponse::NumberOfSigmasITS(const AliVParticle *vtrack, AliPID::EParticleType type) const { | |
110 | AliVTrack *track=(AliVTrack*)vtrack; | |
111 | Float_t dEdx=track->GetITSsignal(); | |
112 | if (dEdx<=0) return -999.; | |
113 | ||
114 | UChar_t clumap=track->GetITSClusterMap(); | |
115 | Int_t nPointsForPid=0; | |
116 | for(Int_t i=2; i<6; i++){ | |
117 | if(clumap&(1<<i)) ++nPointsForPid; | |
118 | } | |
119 | Float_t mom=track->P(); | |
120 | Bool_t isSA=kTRUE; | |
121 | if(track->GetTPCNcls()>0) isSA=kFALSE; | |
122 | return fITSResponse.GetNumberOfSigmas(mom,dEdx,type,nPointsForPid,isSA); | |
123 | } | |
124 | ||
125 | #endif |