MEff2vv.h

// -*- C++ -*-
//
// MEff2vv.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_MEff2vv_H
#define HERWIG_MEff2vv_H
//
// This is the declaration of the MEff2vv class.
//
 
#include "GeneralHardME.h"
#include "ThePEG/Helicity/Vertex/AbstractFFVVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFTVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractFFSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVSVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVTVertex.h"
#include "ThePEG/Helicity/Vertex/AbstractVVVVertex.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 MEff2vv: public GeneralHardME {
public:
  
  typedef vector<SpinorWaveFunction> SpinorVector;
 
  typedef vector<SpinorBarWaveFunction> SpinorBarVector;
 
  typedef vector<VectorWaveFunction> VBVector;
 
public:
 
  MEff2vv() : vector_(0), tensor_(0), scalar_(0) {}
 
  virtual double me2() const;
 
  virtual void constructVertex(tSubProPtr sub);
 
 
protected:
  
  virtual void debug(double me2) const;
 
private: 
  
  ProductionMatrixElement 
  ff2vvME(const SpinorVector & sp, const SpinorBarVector sbar, 
          const VBVector & v1, bool m1, const VBVector & v2, bool m2,
          double & me2, bool first) const;
 
public:
 
  void persistentOutput(PersistentOStream & os) const;
 
  void persistentInput(PersistentIStream & is, int version);
 
  static void Init();
 
protected:
 
  virtual IBPtr clone() const {return new_ptr(*this);}
 
  virtual IBPtr fullclone() const {return new_ptr(*this);}
 
protected:
 
  virtual void doinit();
  
private:
 
  MEff2vv & operator=(const MEff2vv &) = delete;
 
private:
 
  vector<pair<AbstractFFVVertexPtr, AbstractFFVVertexPtr> > fermion_;
 
  vector<pair<AbstractFFVVertexPtr, AbstractVVVVertexPtr> > vector_;
 
  vector<pair<AbstractFFTVertexPtr, AbstractVVTVertexPtr> > tensor_;
 
  vector<pair<AbstractFFSVertexPtr, AbstractVVSVertexPtr> > scalar_;
};
 
}
 
#endif /* HERWIG_MEff2vv_H */