MEff2vs.h

// -*- C++ -*-
//
// MEff2vs.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_MEff2vs_H
#define HERWIG_MEff2vs_H
//
// This is the declaration of the MEff2vs class.
//
 
#include "GeneralHardME.h"
#include "ThePEG/Helicity/Vertex/AbstractFFSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVSSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVSVertex.h"
#include "ThePEG/Helicity/WaveFunction/SpinorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/SpinorBarWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
#include "ThePEG/Helicity/WaveFunction/ScalarWaveFunction.h"
#include "Herwig/MatrixElement/ProductionMatrixElement.h"
 
namespace Herwig {
using namespace ThePEG;
using Helicity::SpinorWaveFunction;
using Helicity::SpinorBarWaveFunction;
using Helicity::VectorWaveFunction;
using Helicity::ScalarWaveFunction;
 
class MEff2vs: public GeneralHardME {
 
public:
 
  typedef vector<SpinorWaveFunction> SpinorVector;
 
  typedef vector<SpinorBarWaveFunction> SpinorBarVector;
 
  typedef vector<VectorWaveFunction> VBVector;
 
public:
 
  MEff2vs() : scalar_(0), vector_(0), fermion_(0) {}
 
  virtual double me2() const;
 
  virtual void constructVertex(tSubProPtr sub);
 
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:
 
  MEff2vs & operator=(const MEff2vs &) = delete;
 
private:
 
  ProductionMatrixElement
  ffb2vsHeME(SpinorVector & sp, SpinorBarVector & spbar,
             VBVector & vec, ScalarWaveFunction & sca, 
             double & me2,bool first) const;
 
 
private:
 
  vector<pair<AbstractFFSVertexPtr, AbstractVSSVertexPtr> > scalar_;
 
  vector<pair<AbstractFFVVertexPtr, AbstractVVSVertexPtr> > vector_;
  
  vector<pair<AbstractFFVVertexPtr, AbstractFFSVertexPtr> > fermion_;
 
  vector<AbstractFFVSVertexPtr> four_;
};
 
}
 
#endif /* HERWIG_MEff2vs_H */