Updated code/macros to be compliant with the current HEAD (from Y. Belikov)
[u/mrichter/AliRoot.git] / ITS / AliCascadeVertex.h
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a9a2d814 1#ifndef ALICASCADEVERTEX_H
2#define ALICASCADEVERTEX_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
7//-------------------------------------------------------------------------
8// Cascade Vertex Class
9//
10// Origin: Christian Kuhn, IReS, Strasbourg, christian.kuhn@ires.in2p3.fr
11//-------------------------------------------------------------------------
12
13#include <TObject.h>
14#include "AliPDG.h"
15
16class AliITStrackV2;
17class AliV0vertex;
18
19#define kXiMinus 3312
20#define kXiPlusBar -3312
21#define kOmegaMinus 3334
22#define kOmegaPlusBar -3334
23
24class AliCascadeVertex : public TObject {
25public:
26 AliCascadeVertex();
27 AliCascadeVertex(const AliV0vertex &vtx, const AliITStrackV2 &trk);
28
04b2a5f1 29 Double_t ChangeMassHypothesis(Double_t &v0q, Int_t code=kXiMinus);
a9a2d814 30
31 Int_t GetPdgCode() const {return fPdgCode;}
32 Double_t GetEffMass() const {return fEffMass;}
33 Double_t GetChi2() const {return fChi2;}
34 void GetPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const;
35 void GetXYZ(Double_t &x, Double_t &y, Double_t &z) const;
36 Double_t GetD(Double_t x0=0.,Double_t y0=0.,Double_t z0=0.) const;
04b2a5f1 37
38 void GetNPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const {
39 px=fV0mom[0][0]; py=fV0mom[0][1]; pz=fV0mom[0][2];
40 }
41 Int_t GetNlabel() const {return fV0lab[0];}
42 void GetPPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const {
43 px=fV0mom[1][0]; py=fV0mom[1][1]; pz=fV0mom[1][2];
44 }
45 Int_t GetPlabel() const {return fV0lab[1];}
46 void GetBPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const {
47 px=fBachMom[0]; py=fBachMom[1]; pz=fBachMom[2];
48 }
49 Int_t GetBlabel() const {return fBachLab;}
a9a2d814 50
51private:
52 Int_t fPdgCode; // reconstructed cascade type (PDG code)
53 Double_t fEffMass; // reconstructed cascade effective mass
54 Double_t fChi2; // chi2 value
55 Double_t fPos[3]; // cascade vertex position (global)
56 Double_t fPosCov[6]; // covariance matrix of the vertex position
57
58 Int_t fV0lab[2]; // labels of the V0 daughter tracks
04b2a5f1 59 Double_t fV0mom[2][3]; // V0 daughters' momenta (global)
a9a2d814 60 Double_t fV0momCov[6]; // covariance matrix of the V0 momentum.
61
62 Int_t fBachLab; // label of the bachelor track
63 Double_t fBachMom[3]; // bachelor momentum (global)
64 Double_t fBachMomCov[6]; // covariance matrix of the bachelor momentum.
65
66 ClassDef(AliCascadeVertex,1) // reconstructed cascade vertex
67};
68
69#endif
70
71