Converting TEvtGen to native cmake
[u/mrichter/AliRoot.git] / TEvtGen / EvtGen / EvtGenBase / EvtVectorParticle.hh
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da0e9ce3 1//--------------------------------------------------------------------------
2//
3// Environment:
4// This software is part of the EvtGen package developed jointly
5// for the BaBar and CLEO collaborations. If you use all or part
6// of it, please give an appropriate acknowledgement.
7//
8// Copyright Information: See EvtGen/COPYRIGHT
9// Copyright (C) 1998 Caltech, UCSB
10//
11// Module: EvtGen/EvtVectorParticle.hh
12//
13// Description: Class to describe vector particles.
14//
15// Modification history:
16//
17// DJL/RYD September 25, 1996 Module created
18//
19//------------------------------------------------------------------------
20
21#ifndef EVTVECTORPARTICLE_HH
22#define EVTVECTORPARTICLE_HH
23
24#include "EvtGenBase/EvtVector4R.hh"
25#include "EvtGenBase/EvtVector4C.hh"
26#include "EvtGenBase/EvtParticle.hh"
27
28class EvtId;
29
30class EvtVectorParticle: public EvtParticle {
31
32public:
33
34 EvtVectorParticle() {}
35 virtual ~EvtVectorParticle();
36
37 void init(EvtId part_n,double e,double px,double py,double pz);
38 void init(EvtId part_n,const EvtVector4R& p);
39 void init(EvtId part_n,const EvtVector4R& p,
40 const EvtVector4C&,const EvtVector4C&,const EvtVector4C&);
41 EvtVector4C epsParent(int i) const {return boostTo(_eps[i],this->getP4());}
42 EvtVector4C eps(int i) const {return _eps[i];}
43 EvtSpinDensity rotateToHelicityBasis() const;
44 EvtSpinDensity rotateToHelicityBasis(double alpha,
45 double beta,
46 double gamma) const;
47
48private:
49
50 EvtVector4C _eps[3];
51
52 EvtVectorParticle(const EvtVectorParticle& vector);
53 EvtVectorParticle& operator=(const EvtVectorParticle& vector);
54
55};
56
57#endif
58