FFVTVertex.h

// -*- C++ -*-
//
// FFVTVertex.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_FFVTVertex_H
#define ThePEG_FFVTVertex_H
//
// This is the declaration of the FFVTVertex class.
//
#include "ThePEG/Helicity/Vertex/AbstractFFVTVertex.h"
#include "ThePEG/Helicity/WaveFunction/SpinorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/SpinorBarWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/TensorWaveFunction.h"
#include "FFVTVertex.fh"

namespace ThePEG {
namespace Helicity {

class FFVTVertex: public AbstractFFVTVertex {
      
public:

  static void Init();
  
public:
  
  Complex evaluate(Energy2 q2,const SpinorWaveFunction & sp1,
                   const SpinorBarWaveFunction & sbar2,
                   const VectorWaveFunction & vec3, const TensorWaveFunction & ten4);

  TensorWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const SpinorWaveFunction & sp1,
                              const SpinorBarWaveFunction & sbar2,
                              const VectorWaveFunction & vec3,
                              Energy mass=-GeV, Energy width=-GeV);

  VectorWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const SpinorWaveFunction & sp1,
                              const SpinorBarWaveFunction & sbar2, 
                              const TensorWaveFunction & ten4,
                              Energy mass=-GeV, Energy width=-GeV);

  SpinorWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const SpinorWaveFunction & sp1,
                              const VectorWaveFunction & vec3,
                              const TensorWaveFunction & ten4,
                              Energy mass=-GeV, Energy width=-GeV);

  SpinorBarWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                                 const SpinorBarWaveFunction & sbar2,
                                 const VectorWaveFunction & vec3,
                                 const TensorWaveFunction & ten4,
                                 Energy mass=-GeV, Energy width=-GeV);

  virtual void setCoupling(Energy2 q2,tcPDPtr part1,tcPDPtr part2,
                           tcPDPtr part3, tcPDPtr part4)=0;
    
private:
  
  static AbstractNoPIOClassDescription<FFVTVertex> initFFVTVertex;
  
  FFVTVertex & operator=(const FFVTVertex &);
  
};
}

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


#endif /* ThePEG_FFVTVertex_H */

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