4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 //----------------------------------------------------------------------------//
9 // Description: class to performe an event time measurment with TOF. //
11 //----------------------------------------------------------------------------//
17 class AliTOFcalibHisto;
20 class AliTOFT0v1: public TObject {
24 AliTOFT0v1(const AliTOFT0v1 & tzero);
25 AliTOFT0v1 & operator=(const AliTOFT0v1 & tzero) ;
26 AliTOFT0v1(AliESDEvent *event);
27 virtual ~AliTOFT0v1() ; // dtor
29 void SetCalib(AliTOFcalibHisto * const calib){fCalib = calib;};
31 Double_t* DefineT0(Option_t *option);
32 Double_t* DefineT0RawCorrection(Option_t *option);
34 void SetTimeResolution(Double_t timeresolution);// timeresolution in [s] e.g. for 120 ps -> 1.2e-10
36 Double_t GetTimeResolution() const {return fTimeResolution;}
38 void SetMomBounds(Float_t pLow, Float_t pUp) { fLowerMomBound=pLow; fUpperMomBound=pUp;} // momenta are expressed in [GeV/c]
39 void SetTimeCorr(Float_t timecorr) {fTimeCorr=timecorr;} //in ns!!!
40 Float_t GetMomError(Int_t index, Float_t mom, Float_t texp) const;
41 /* void Print(Option_t* option) const ; */
45 Bool_t AcceptTrack(AliESDtrack *track); /* accept track */
46 Float_t GetSigmaToVertex(AliESDtrack *track) const; /* get sigma to vertex */
49 Float_t fLowerMomBound; // momentum lower bound for selected primary tracks
50 Float_t fUpperMomBound; // momentum upper bound for selected primary tracks
51 Double_t fTimeResolution; // global time resolution used to calculate T0
52 Float_t fTimeCorr; // global time resolution used to calculate T0
53 AliESDEvent* fEvent; //evento per il quale si vuole calcolare il T0
54 AliTOFcalibHisto *fCalib; // pointer to the class with the TOF time corrections
56 Double_t fT0SigmaT0def[4]; // array with the event information ([0]=event time -- [1] = sigma -- [2] = tracks on the TOF -- [3] = tracks used for the event time)
58 ClassDef(AliTOFT0v1,2); // Calculate the time zero using TOF detector */