VVVVVertex.h

// -*- C++ -*-
//
// VVVVVertex.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_VVVVVertex_H
#define ThePEG_VVVVVertex_H
//
// This is the declaration of the VVVVVertex class.

#include "ThePEG/Helicity/Vertex/AbstractVVVVVertex.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "VVVVVertex.fh"

namespace ThePEG {
namespace Helicity{

class VVVVVertex: public AbstractVVVVVertex {
  
public:

  static void Init();
  
public:
  
  Complex evaluate(Energy2 q2, int iopt,
                   const VectorWaveFunction & vec1, const VectorWaveFunction & vec2,
                   const VectorWaveFunction & vec3, const VectorWaveFunction & vec4);

  virtual void setCoupling(Energy2 q2,tcPDPtr part1,tcPDPtr part2,tcPDPtr part3,
                           tcPDPtr part4)=0;
  
protected:
  
  void setOrder(int id1,int id2,int id3,int id4) {
    _iorder[0]=id1;
    _iorder[1]=id2;
    _iorder[2]=id3;
    _iorder[3]=id4;
  }

  void setType(int itype) {
    _itype=itype;
  }

  void setIntermediate(tcPDPtr part1,tcPDPtr part2,Complex c1,Complex c2) {
    _inter[0]=part1;
    _inter[1]=part2;
    _coup[0]=c1;
    _coup[1]=c2;
  }
  
private:
  
  static AbstractNoPIOClassDescription<VVVVVertex> initVVVVVertex;
  
  VVVVVertex & operator=(const VVVVVertex &);
  
private:

  int _itype;

  int _iorder[4];

  tcPDPtr _inter[2];

  Complex _coup[2];

};
}
}

namespace ThePEG {

template <>
struct BaseClassTrait<ThePEG::Helicity::VVVVVertex,1> {
  typedef ThePEG::Helicity::AbstractVVVVVertex NthBase;
};

template <>
struct ClassTraits<ThePEG::Helicity::VVVVVertex>
  : public ClassTraitsBase<ThePEG::Helicity::VVVVVertex> {
  
  static string className() { return "ThePEG::VVVVVertex"; }
};

}

#endif /* ThePEG_VVVVVertex_H */

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