FFMassiveTildeKinematics.h

// -*- C++ -*-
//
// FFMassiveTildeKinematics.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_FFMassiveTildeKinematics_H
#define HERWIG_FFMassiveTildeKinematics_H
//
// This is the declaration of the FFMassiveTildeKinematics class.
//
 
#include "Herwig/MatrixElement/Matchbox/Phasespace/TildeKinematics.h"
    
namespace Herwig {
 
using namespace ThePEG;
 
class FFMassiveTildeKinematics: public TildeKinematics {
 
public:
 
  virtual bool doMap();
 
  virtual Energy lastPt() const;
  
  virtual pair<double,double> zBounds(Energy pt, Energy hardPt ) const;
  
  virtual Energy lastPt(Lorentz5Momentum,Lorentz5Momentum,Lorentz5Momentum) const ;
 
 
  virtual double lastZ() const;
 
public:
  
  template <class T>
  inline T rootOfKallen (T a, T b, T c) const {
    return sqrt( a*a + b*b + c*c - 2.*( a*b+a*c+b*c ) ); }
 
public:
 
  void persistentOutput(PersistentOStream & os) const;
 
  void persistentInput(PersistentIStream & is, int version);
 
  static void Init();
 
protected:
 
  virtual IBPtr clone() const;
 
  virtual IBPtr fullclone() const;
 
 
// If needed, insert declarations of virtual function defined in the
// InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
 
 
private:
 
  FFMassiveTildeKinematics & operator=(const FFMassiveTildeKinematics &) = delete;
 
};
 
}
 
#endif /* HERWIG_FFMassiveTildeKinematics_H */