SSSVertex.h

// -*- C++ -*-
//
// SSSVertex.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_SSSVertex_H
#define ThePEG_SSSVertex_H
//
// This is the declaration of the SSSVertex class.
//
#include "ThePEG/Helicity/Vertex/AbstractSSSVertex.h"
#include "ThePEG/Helicity/WaveFunction/ScalarWaveFunction.h"
#include "SSSVertex.fh"

namespace ThePEG {
namespace Helicity {

class SSSVertex: public AbstractSSSVertex {

public:

  static void Init();
  
public:

  Complex evaluate(Energy2 q2,const ScalarWaveFunction & sca1,
                   const ScalarWaveFunction & sca2,const ScalarWaveFunction & sca3);

  ScalarWaveFunction evaluate(Energy2 q2,int iopt, tcPDPtr out, 
                              const ScalarWaveFunction & sca1,
                              const ScalarWaveFunction & sca2,
                              Energy mass=-GeV, Energy width=-GeV);

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

}

template <>
struct BaseClassTrait<ThePEG::Helicity::SSSVertex,1> {
  typedef ThePEG::Helicity::AbstractSSSVertex NthBase;
};

template <>
struct ClassTraits<ThePEG::Helicity::SSSVertex>
  : public ClassTraitsBase<ThePEG::Helicity::SSSVertex> {

  static string className() { return "ThePEG::SSSVertex"; }
};

}


#endif /* ThePEG_SSSVertex_H */

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