TRD/Cal/AliTRDCalPIDLQ.h

   1 #ifndef ALITRDCALPIDLQ_H
   2 #define ALITRDCALPIDLQ_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id$ */
   7
   8 ///////////////////////////////////////////////////////////////////////////////
   9 //                                                                           //
  10 // Container for the distributions of dE/dx and the time bin of the          //
  11 // max. cluster for electrons and pions                                      //
  12 //                                                                           //
  13 // Author:                                                                   //
  14 //   Prashant Shukla <shukla@pi0.physi.uni-heidelberg.de>                    //
  15 //                                                                           //
  16 ///////////////////////////////////////////////////////////////////////////////
  17
  18 #include <TNamed.h>
  19
  20 class TH1F;
  21 class TObjArray;
  22
  23 class AliTRDCalPIDLQ : public TNamed {
  24
  25  public:
  26
  27   AliTRDCalPIDLQ();
  28   AliTRDCalPIDLQ(const Text_t *name, const Text_t *title);
  29   AliTRDCalPIDLQ(const AliTRDCalPIDLQ& pd);
  30   virtual          ~AliTRDCalPIDLQ();
  31   AliTRDCalPIDLQ    &operator=(const AliTRDCalPIDLQ &c);
  32
  33   virtual void       Copy(TObject &c) const;
  34
  35           Bool_t     ReadData(Char_t *responseFile);
  36           void       SetMeanChargeRatio(Double_t ratio)     { fMeanChargeRatio = ratio;  }
  37
  38           Double_t   GetMeanChargeRatio() const             { return fMeanChargeRatio;   }
  39           Double_t   GetMomentum(Int_t ip) const            { return fTrackMomentum[ip]; }
  40           Double_t   GetMean(Int_t iType, Int_t ip) const;
  41           Double_t   GetNormalization(Int_t iType, Int_t ip) const;
  42
  43           TH1F      *GetHistogram(Int_t iType, Int_t ip) const;
  44           TH1F      *GetHistogramT(Int_t iType, Int_t ip) const;
  45
  46           Double_t   GetProbability(Int_t iType, Double_t mom, Double_t dedx) const;
  47           Double_t   GetProbabilityT(Int_t iType, Double_t mom, Int_t timbin) const;
  48           Int_t      GetNbins() const                       { return fNbins;   }
  49           Double_t   GetBinSize() const                     { return fBinSize; }
  50
  51  protected:
  52
  53           void       Init();
  54           void       CleanUp();
  55   inline  Int_t      GetHistID(Int_t part, Int_t mom) const { return part*fNMom + mom; }
  56
  57   static  Char_t    *fpartName[5];                 //! Names of particle species
  58
  59           Int_t      fNMom;                        //  Number of momenta
  60           Double_t  *fTrackMomentum;               //[fNMom] Track momenta for which response functions are available
  61           Double_t   fMeanChargeRatio;             //  Ratio of mean charge from real Det. to prob. dist.
  62
  63           Int_t      fNbins;                       //  Number of energy bins
  64           Double_t   fBinSize;                     //  Size of energy bin
  65
  66           TObjArray *fHistdEdx;                    //  Prob. of dEdx for 5 particles and for several momenta
  67           TObjArray *fHistTimeBin;                 //  Prob. of max time bin for 5 particles and for several momenta
  68
  69   ClassDef(AliTRDCalPIDLQ, 1)                      //  The TRD PID response container class
  70
  71 };
  72
  73 #endif
  74