VVTVertex.h

// -*- C++ -*-
//
// VVTVertex.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_VVTVertex_H
#define ThePEG_VVTVertex_H
//
// This is the declaration of the VVTVertex class.

#include "ThePEG/Helicity/Vertex/AbstractVVTVertex.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/TensorWaveFunction.h"
#include "VVTVertex.fh"

namespace ThePEG {
namespace Helicity {

class VVTVertex: public AbstractVVTVertex {
  
public:

  static void Init();
  
public:

  Complex evaluate(Energy2 q2,const VectorWaveFunction & vec1,
                   const VectorWaveFunction & vec2, const TensorWaveFunction & ten3);

  TensorWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const VectorWaveFunction & vec1,
                              const VectorWaveFunction & vec2,
                              Energy mass=-GeV, Energy width=-GeV);

  VectorWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const VectorWaveFunction & vec1,
                              const TensorWaveFunction & ten3,
                              Energy mass=-GeV, Energy width=-GeV);

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

}

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

}


#endif /* ThePEG_VVTVertex_H */

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