MEvv2ff.h

// -*- C++ -*-
//
// MEvv2ff.h is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2019 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef HERWIG_MEvv2ff_H
#define HERWIG_MEvv2ff_H
//
// This is the declaration of the MEvv2ff class.
//
 
#include "GeneralHardME.h"
#include "ThePEG/Helicity/Vertex/AbstractFFSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractRFVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVTVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFTVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVVVertex.h"
#include "ThePEG/Helicity/WaveFunction/SpinorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/SpinorBarWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "Herwig/MatrixElement/ProductionMatrixElement.h"
 
namespace Herwig {
using namespace ThePEG;
using ThePEG::Helicity::SpinorWaveFunction;
using ThePEG::Helicity::SpinorBarWaveFunction;
using ThePEG::Helicity::VectorWaveFunction;
 
class MEvv2ff: public GeneralHardME {
 
public:
  
  typedef vector<VectorWaveFunction> VBVector;
 
  typedef vector<SpinorWaveFunction> SpinorVector;
 
  typedef vector<SpinorBarWaveFunction> SpinorBarVector;
 
public:
 
  virtual double me2() const;
 
  virtual void constructVertex(tSubProPtr sub);
 
private:
 
  ProductionMatrixElement vv2ffME(const VBVector & v1, const VBVector & v2,
                                  const SpinorBarVector & sbar,
                                  const SpinorVector & sp, 
                                  double & me2, bool first) const;
  
protected:
 
  virtual void debug(double me2) const;
  
public:
 
  void persistentOutput(PersistentOStream & os) const;
 
  void persistentInput(PersistentIStream & is, int version);
 
  static void Init();
 
 
protected:
 
  virtual void doinit();
 
 
protected:
 
  virtual IBPtr clone() const {return new_ptr(*this);}
 
  virtual IBPtr fullclone() const {return new_ptr(*this);}
 
private:
 
  MEvv2ff & operator=(const MEvv2ff &) = delete;
 
private:
  
  vector<pair<AbstractVVSVertexPtr, AbstractFFSVertexPtr > > scalar_;
  
  vector<pair<AbstractFFVVertexPtr, AbstractFFVVertexPtr> > fermion_;
 
  vector<pair<AbstractVVVVertexPtr, AbstractFFVVertexPtr> > vector_;
  
  vector<pair<AbstractRFVVertexPtr, AbstractRFVVertexPtr> > RSfermion_;
  
  vector<pair<AbstractVVTVertexPtr, AbstractFFTVertexPtr> > tensor_;
 
  vector<AbstractFFVVVertexPtr> four_;
};
 
}
 
#endif /* HERWIG_MEvv2ff_H */