EvtSVVHelAmp.hh

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//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
//      Copyright (C) 1998      Caltech, UCSB
//
// Module: EvtGen/EvtSVVHelAmp.hh
//
// Description:
//
// Modification history:
//
//    DJL/RYD     August 11, 1998         Module created
//
//------------------------------------------------------------------------
 
#ifndef EVTSVVHELAMP_HH
#define EVTSVVHELAMP_HH
 
#include "../EvtGenBase/EvtDecayAmp.hh"
 
// Class to handle decays of the form SCALAR -> VECTOR VECTOR
// according the the helicity amplitudes specified by the
// user.  There are 6 arguements, orders as amplitude then
// phase for H+, H0, and H-, in that order.
 
class EvtAmp;
class EvtParticle;
class EvtId;
 
class EvtSVVHelAmp : public EvtDecayAmp {
 
public:
  EvtSVVHelAmp() {}
  virtual ~EvtSVVHelAmp();
 
  void          getName( std::string& name );
  EvtDecayBase* clone();
 
  void init();
  void initProbMax();
 
  void decay( EvtParticle* p );
 
  static void SVVHel( EvtParticle* parent, EvtAmp& amp, EvtId n_v1, EvtId n_v2,
                      const EvtComplex& hp, const EvtComplex& h0, const EvtComplex& hm );
};
 
#endif