VVVSVertex.h

// -*- C++ -*-
//
// VVVSVertex.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 2003-2019 Peter Richardson, Leif Lonnblad
//
// ThePEG is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_VVVSVertex_H
#define ThePEG_VVVSVertex_H
//
// This is the declaration of the VVVSVertex class.

#include "ThePEG/Helicity/Vertex/AbstractVVVSVertex.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "VVVSVertex.fh"

namespace ThePEG {
namespace Helicity{
  
class VVVSVertex: public AbstractVVVSVertex {

public :
  
  VVVSVertex() : scalar_(true) {}
    
public:
 
  void persistentOutput(PersistentOStream & os) const;

  void persistentInput(PersistentIStream & is, int version);

  static void Init();
  
public:
  
  Complex evaluate(Energy2 q2, const VectorWaveFunction & vec1,
                   const VectorWaveFunction & vec2,
                   const VectorWaveFunction & vec3,
                   const ScalarWaveFunction & sca);

  VectorWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const VectorWaveFunction & vec2,
                              const VectorWaveFunction & vec3,
                              const ScalarWaveFunction & sca,
                              complex<Energy> mass=-GeV, complex<Energy> width=-GeV);

  ScalarWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out,
                              const VectorWaveFunction & vec1,
                              const VectorWaveFunction & vec2,
                              const VectorWaveFunction & vec3,
                              complex<Energy> mass=-GeV, complex<Energy> width=-GeV);

  virtual void setCoupling(Energy2 q2,tcPDPtr part1,
                           tcPDPtr part2,tcPDPtr part3,
                           tcPDPtr part4)=0;

  virtual void setCoupling(Energy2,tcPDPtr,tcPDPtr,tcPDPtr) {
    assert(false);
  }

protected:

  void scalar(bool in) {scalar_=in;}

private:
  
  VVVSVertex & operator=(const VVVSVertex &) = delete;

  bool scalar_;
  
};

}
}

#endif /* ThePEG_VVVSVertex_H */