FRSDecayer.h

// -*- C++ -*-
//
// FRSDecayer.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_FRSDecayer_H
#define HERWIG_FRSDecayer_H
//
// This is the declaration of the FRSDecayer class.
//
 
#include "GeneralTwoBodyDecayer.h"
#include "ThePEG/Repository/EventGenerator.h"
#include "ThePEG/Helicity/Vertex/Scalar/RFSVertex.h"
 
namespace Herwig {
using namespace ThePEG;
using Helicity::RFSVertexPtr;
 
class FRSDecayer: public GeneralTwoBodyDecayer {
 
public:
  
  FRSDecayer() {}
 
  double me2(const int ichan,const Particle & part,
             const tPDVector & outgoing,
             const vector<Lorentz5Momentum> & momenta,
             MEOption meopt) const;
 
  virtual void constructSpinInfo(const Particle & part,
                                 ParticleVector outgoing) const;
 
  virtual Energy partialWidth(PMPair inpart, PMPair outa, 
                              PMPair outb) const;
 
  virtual void setDecayInfo(PDPtr incoming, PDPair outgoing,
                            vector<VertexBasePtr>,
                            map<ShowerInteraction,VertexBasePtr> &,
                            const vector<map<ShowerInteraction,VertexBasePtr> > &,
                            map<ShowerInteraction,VertexBasePtr>);
 
public:
 
  void persistentOutput(PersistentOStream & os) const;
 
  void persistentInput(PersistentIStream & is, int version);
 
  static void Init();
 
protected:
 
  virtual IBPtr clone() const;
 
  virtual IBPtr fullclone() const;
 
private:
 
  FRSDecayer & operator=(const FRSDecayer &) = delete;
 
private:
 
  vector<AbstractRFSVertexPtr> vertex_;
 
  vector<RFSVertexPtr> perturbativeVertex_;
 
  mutable RhoDMatrix rho_;
 
  mutable vector<SpinorWaveFunction>    wave_   ;
 
  mutable vector<SpinorBarWaveFunction> wavebar_;
 
  mutable vector<RSSpinorWaveFunction>    RSwave_   ;
 
  mutable vector<RSSpinorBarWaveFunction> RSwavebar_;
};
 
}
 
#endif /* HERWIG_FRSDecayer_H */