1 #ifndef AliHBTTwoTrackEffFctn_H
2 #define AliHBTTwoTrackEffFctn_H
3 //____________________________________________________________________
4 //////////////////////////////////////////////////////////////////////
6 // class AliHBTTwoTrackEffFctn //
8 // classes for calculating two track efficiency of the tracking //
9 // binning is done using value of simulated pair montum difference //
10 // pair must be recontructed, that is why we need both pairs //
11 // (simulated and recontructed), thus functions are "two pair" //
12 // Piotr.Skowronski@cern.ch //
14 //////////////////////////////////////////////////////////////////////
15 #include "AliHBTPair.h"
16 #include "AliHBTFunction.h"
18 class AliHBTTwoTrackEffFctn: public AliHBTOnePairFctn1D, public AliHBTCorrelFunction
21 AliHBTTwoTrackEffFctn();
22 AliHBTTwoTrackEffFctn(Int_t nbins, Double_t maxval, Double_t minval);
23 virtual ~AliHBTTwoTrackEffFctn(){}
26 Double_t GetValue(AliHBTPair* pair) const {return pair->GetDeltaP();}
28 ClassDef(AliHBTTwoTrackEffFctn,2)
30 /******************************************************************/
32 class AliHBTTwoTrackEffFctnPxPyPz: public AliHBTOnePairFctn3D, public AliHBTCorrelFunction
35 AliHBTTwoTrackEffFctnPxPyPz(Int_t nXbins = 100, Double_t maxXval = 0.15, Double_t minXval = 0.0,
36 Int_t nYbins = 100, Double_t maxYval = 0.15, Double_t minYval = 0.0,
37 Int_t nZbins = 100, Double_t maxZval = 0.15, Double_t minZval = 0.0);
38 virtual ~AliHBTTwoTrackEffFctnPxPyPz(){}
41 void GetValues(AliHBTPair* pair,Double_t& x, Double_t& y,Double_t& z) const;
43 ClassDef(AliHBTTwoTrackEffFctnPxPyPz,2)
45 /******************************************************************/
47 class AliHBTTwoTrackEffFctnPtThetaPhi: public AliHBTOnePairFctn3D, public AliHBTCorrelFunction
50 AliHBTTwoTrackEffFctnPtThetaPhi(Int_t nXbins = 100, Double_t maxXval = 0.15, Double_t minXval = 0.0,
51 Int_t nYbins = 100, Double_t maxYval = 0.3, Double_t minYval = 0.0,
52 Int_t nZbins = 100, Double_t maxZval = 0.3, Double_t minZval = 0.0);
53 virtual ~AliHBTTwoTrackEffFctnPtThetaPhi(){}
56 void GetValues(AliHBTPair* pair,Double_t& x, Double_t& y,Double_t& z) const;
58 ClassDef(AliHBTTwoTrackEffFctnPtThetaPhi,1)