1 //--------------------------------------------------------------------------
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.
8 // Copyright Information: See EvtGen/COPYRIGHT
9 // Copyright (C) 1998 Caltech, UCSB
11 // Module: EvtGen/EvtRaritaSchwingerParticle.hh
13 // Description:Represents particles i.e. spin 3/2 particles.
15 // Modification history:
17 // RYD August 9, 2000 Module created
19 //------------------------------------------------------------------------
21 #ifndef EVTRARITASCHWINGERPARTICLE_HH
22 #define EVTRARITASCHWINGERPARTICLE_HH
24 #include "EvtGenBase/EvtRaritaSchwinger.hh"
25 #include "EvtGenBase/EvtId.hh"
26 #include "EvtGenBase/EvtParticle.hh"
30 class EvtRaritaSchwingerParticle:public EvtParticle {
35 EvtRaritaSchwingerParticle();
36 virtual ~EvtRaritaSchwingerParticle();
37 void init(EvtId id,const EvtVector4R& p4);
38 void init(EvtId id,const EvtVector4R& p4,
39 const EvtRaritaSchwinger &,const EvtRaritaSchwinger &,
40 const EvtRaritaSchwinger &,const EvtRaritaSchwinger &,
41 const EvtRaritaSchwinger &,const EvtRaritaSchwinger &,
42 const EvtRaritaSchwinger &,const EvtRaritaSchwinger &);
43 EvtRaritaSchwinger spRSParent(int) const;
44 EvtRaritaSchwinger spRS(int) const;
45 EvtSpinDensity rotateToHelicityBasis() const;
46 EvtSpinDensity rotateToHelicityBasis(double alpha,
52 EvtRaritaSchwinger _spinorRest[4];
53 EvtRaritaSchwinger _spinor[4];
54 EvtRaritaSchwingerParticle(const EvtRaritaSchwingerParticle& d);
55 EvtRaritaSchwingerParticle& operator=(const EvtRaritaSchwingerParticle& d);