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1 | #ifndef ALILNID_H |
| 2 | #define ALILNID_H |
| 3 | |
| 4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
| 5 | * See cxx source for full Copyright notice */ |
| 6 | |
| 7 | // class for light nuclei identification |
| 8 | // author: Eulogio Serradilla <eulogio.serradilla@cern.ch> |
| 9 | |
| 10 | #include <TObject.h> |
| 11 | #include <AliPID.h> |
| 12 | |
| 13 | class AliLnID: public TObject |
| 14 | { |
| 15 | public: |
| 16 | AliLnID(); |
| 17 | AliLnID(const AliLnID& other); |
| 18 | AliLnID& operator=(const AliLnID& other); |
| 19 | |
| 20 | virtual ~AliLnID(); |
| 21 | |
| 22 | Int_t GetPID(const class TParticle* p) const; |
| 23 | |
| 24 | Int_t GetPID(Int_t partCode, Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t pTPC, Double_t dEdxTPC, Int_t nPointsTPC, Double_t pTOF, Double_t beta, Double_t nSigITS=3, Double_t nSigTPC=3, Double_t nSigTOF=3) const; |
| 25 | |
| 26 | Int_t GetTPCpid(Int_t partCode, Double_t pTPC, Double_t dEdx, Double_t nPoints, Double_t nSigma=3) const; |
| 27 | |
| 28 | Int_t GetITSTPCpid(Int_t partCode, Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t nSigmaITS, Double_t pTPC, Double_t dEdxTPC, Double_t nPointsTPC, Double_t nSigmaTPC) const; |
| 29 | |
| 30 | Int_t GetTPCTOFpid(Int_t partCode, Double_t pTPC, Double_t dEdx, Double_t nPoints, Double_t nSigmaTPC, Double_t pTOF, Double_t beta, Double_t nSigmaTOF) const; |
| 31 | |
| 32 | Int_t GetMaxLikelihoodPID(Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t pTPC, Double_t dEdxTPC, Int_t nPointsTPC, Double_t pTOF, Double_t beta) const; |
| 33 | |
| 34 | Int_t GetBayesPID(Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t pTPC, Double_t dEdxTPC, Int_t nPointsTPC, Double_t pTOF, Double_t beta) const; |
| 35 | |
| 36 | Bool_t GetITSlikelihood(Double_t p, Double_t dEdx, Int_t nPoints, Double_t* r) const; |
| 37 | Bool_t GetTPClikelihood(Double_t p, Double_t dEdx, Int_t nPoints, Double_t* r) const; |
| 38 | Bool_t GetTOFlikelihood(Double_t p, Double_t beta, Double_t* r) const; |
| 39 | |
| 40 | Double_t GetBetaExpectedSigma(Double_t p, Double_t mass) const; |
| 41 | Double_t GetM2ExpectedSigma(Double_t p, Double_t mass) const; |
| 42 | |
| 43 | Bool_t GetITSmatch(Int_t pid, Double_t p, Double_t dEdx, Int_t nPoints, Double_t nSigma=3.) const; |
| 44 | Bool_t GetTPCmatch(Int_t pid, Double_t pTPC, Double_t dEdx, Double_t nPoints, Double_t nSigma=3.) const; |
| 45 | Bool_t GetTOFmatch(Int_t pid, Double_t pTOF, Double_t beta, Double_t nSigma=3.) const; |
| 46 | Bool_t GetM2match(Int_t pid, Double_t pTOF, Double_t m2, Double_t nSigma=3.) const; |
| 47 | |
| 48 | Int_t GetPidProcedure() const { return fPidProcedure; } |
| 49 | |
| 50 | Bool_t IsITSTPCmismatch(Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t pTPC, Double_t dEdxTPC, Int_t nPointsTPC, Double_t nSigma=5.) const; |
| 51 | Bool_t IsITSTOFmismatch(Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t pTOF, Double_t beta, Double_t nSigma=5.) const; |
| 52 | Bool_t IsTPCTOFmismatch(Double_t pTPC, Double_t dEdxTPC, Int_t nPointsTPC, Double_t pTOF, Double_t beta, Double_t nSigma=5.) const; |
| 53 | |
| 54 | void SetPriorProbabilities(const Double_t* prob); |
| 55 | void SetPriorProbabilities(Double_t e, Double_t mu, Double_t pi, Double_t k, Double_t p, Double_t d, Double_t t, Double_t he3, Double_t alpha); |
| 56 | |
| 57 | void SetPidProcedure(Int_t proc) { fPidProcedure = proc; } |
| 58 | |
| 59 | void SetITSBetheBlochParams(const Double_t* param, Double_t res=0.13); |
| 60 | |
| 61 | void SetTPCBetheBlochParams(const Double_t* param, Double_t mip=1., Double_t res=0.06); |
| 62 | void SetTPCBetheBlochParams(Double_t c0, Double_t c1, Double_t c2, Double_t c3, Double_t c4, Double_t mip=1., Double_t res=0.06); |
| 63 | |
| 64 | enum { kSPECIES = 9 }; |
| 65 | enum { kBayes, kMaxLikelihood, kTPC, kITSTPC, kTPCTOF }; |
| 66 | |
| 67 | private: |
| 68 | |
| 69 | Double_t Beta(Double_t p, Double_t m) const; |
| 70 | Bool_t GetLikelihood(Double_t pITS, Double_t dEdxITS, Int_t nPointsITS, Double_t pTPC, Double_t dEdxTPC, Int_t nPointsTPC, Double_t pTOF, Double_t beta, Double_t* r) const; |
| 71 | Int_t GetIndexOfMaxValue(const Double_t* w) const; |
| 72 | |
| 73 | private: |
| 74 | |
| 75 | Int_t fPidProcedure; // PID procedure code |
| 76 | const Int_t fkNumSpecies; // number of particle species |
| 77 | AliPID::EParticleType fSpecies[kSPECIES]; // particle species known by the pid |
| 78 | |
| 79 | Double_t fPrior[kSPECIES]; // prior probabilities |
| 80 | Double_t fRange; // number of sigmas to the expected values |
| 81 | |
| 82 | class AliITSPIDResponse* fITSpid; // ITS likelihood |
| 83 | class AliTPCPIDResponse* fTPCpid; // TPC likelihood |
| 84 | |
| 85 | ClassDef(AliLnID, 1) |
| 86 | }; |
| 87 | |
| 88 | #endif // ALILNID_H |
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