3 #ifndef ALIHLTD0TOKPI_H
4 #define ALIHLTD0TOKPI_H
5 //* This file is property of and copyright by the ALICE HLT Project *
6 //* ALICE Experiment at CERN, All rights reserved. *
7 //* See cxx source for full Copyright notice *
9 /// @file AliHLTD0toKpi.h
10 /// @author Gaute Ovrebekk
12 /// @brief Class for calculating D0->Kpi
18 class AliExternalTrackParam;
21 class AliHLTD0toKpi : public TObject
26 Double_t InvMass(AliExternalTrackParam* d1, AliExternalTrackParam* d2);
27 void cosThetaStar(AliExternalTrackParam* n, AliExternalTrackParam* p,Double_t &D0,Double_t &D0bar);
28 Double_t pointingAngle(AliExternalTrackParam* n, AliExternalTrackParam* p, Double_t *pv, Double_t *sv);
29 Double_t Pt(AliExternalTrackParam* d1, AliExternalTrackParam* d2);
31 AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray, Double_t b, const AliESDVertex *v, bool useKF);
35 ClassDef(AliHLTD0toKpi, 1)
37 #endif //ALIHLTD0TOKPI_H