MEfv2vf.h

// -*- C++ -*-
//
// MEfv2vf.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_MEfv2vf_H
#define HERWIG_MEfv2vf_H
//
// This is the declaration of the MEfv2vf class.
//
 
#include "GeneralHardME.h"
#include "Herwig/MatrixElement/ProductionMatrixElement.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/SpinorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/SpinorBarWaveFunction.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVVVertex.h"
 
namespace Herwig {
using namespace ThePEG;
 
class MEfv2vf: public GeneralHardME {
 
public:
 
  typedef vector<Helicity::SpinorWaveFunction> SpinorVector;
 
  typedef vector<Helicity::SpinorBarWaveFunction> SpinorBarVector;
 
  typedef vector<Helicity::VectorWaveFunction> VBVector;
 
public:
 
  virtual double me2() const;
 
  virtual void constructVertex(tSubProPtr sub);
 
private:
 
  ProductionMatrixElement
  fv2vfHeME(const SpinorVector & spIn,  const VBVector & vecIn, 
            const VBVector & vecOut, bool mc,
            const SpinorBarVector & spbOut, 
            double & mesq, bool first) const;
 
  ProductionMatrixElement
  fbv2vfbHeME(const SpinorBarVector & spbIn,  const VBVector & vecIn, 
              const VBVector & vecOut, bool mc,
              const SpinorVector & spOut, 
              double & mesq, 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:
 
  MEfv2vf & operator=(const MEfv2vf &) = delete;
 
private:
  
  vector<pair<AbstractFFVVertexPtr, AbstractFFVVertexPtr> > fermion_;
 
  vector<pair<AbstractFFVVertexPtr, AbstractVVVVertexPtr> > vector_;
 
  vector<AbstractFFVVVertexPtr> four_;
 
};
 
}
 
#endif /* HERWIG_MEfv2vf_H */