VSSVertex.h

// -*- C++ -*-
//
// VSSVertex.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 2003-2007 Peter Richardson, Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_VSSVertex_H
#define ThePEG_VSSVertex_H
//
// This is the declaration of the VSSVertex class.
//
#include "ThePEG/Helicity/Vertex/AbstractVSSVertex.h"
#include "ThePEG/Helicity/WaveFunction/ScalarWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "VSSVertex.fh"

namespace ThePEG {
namespace Helicity {

class VSSVertex: public AbstractVSSVertex {
    
public:
  
  static void Init();
  
public:

  Complex evaluate(Energy2 q2,const VectorWaveFunction & vec1,
                   const ScalarWaveFunction & sca2, const ScalarWaveFunction & sca3);

  VectorWaveFunction evaluate(Energy2 q2,int iopt,tcPDPtr out,
                              const ScalarWaveFunction & sca2,
                              const ScalarWaveFunction & sca3,
                              Energy mass=-GeV, Energy width=-GeV);

  ScalarWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const VectorWaveFunction & vec1,
                              const ScalarWaveFunction & sca2,
                              Energy mass=-GeV, Energy width=-GeV);

  virtual void setCoupling(Energy2 q2,tcPDPtr part1,tcPDPtr part2,tcPDPtr part3)=0;
  
private:
  
  static AbstractNoPIOClassDescription<VSSVertex> initVSSVertex;
  
  VSSVertex & operator=(const VSSVertex &);
  
};

}

template <>
struct BaseClassTrait<ThePEG::Helicity::VSSVertex,1> {
  typedef ThePEG::Helicity::AbstractVSSVertex NthBase;
};
  
template <>
struct ClassTraits<ThePEG::Helicity::VSSVertex>
  : public ClassTraitsBase<ThePEG::Helicity::VSSVertex> {
  
  static string className() { return "ThePEG::VSSVertex"; }
};

}

#endif /* ThePEG_VSSVertex_H */

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