FlatInvertibleLabframePhasespace.h

// -*- C++ -*-
//
// FlatInvertiblePhasespaceLabFrame.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_FlatInvertibleLabframePhasespace_H
#define Herwig_FlatInvertibleLabframePhasespace_H
//
// This is the declaration of the FlatInvertibleLabframePhasespace class.
//
 
#include "Herwig/MatrixElement/Matchbox/Phasespace/FlatInvertiblePhasespace.h"
 
namespace Herwig {
 
using namespace ThePEG;
 
class FlatInvertibleLabframePhasespace: public FlatInvertiblePhasespace {
 
public:
 
  FlatInvertibleLabframePhasespace();
 
public:
 
  virtual double generateTwoToNKinematics(const double*,
                                          vector<Lorentz5Momentum>& momenta);
 
  virtual int nDimPhasespace(int nFinal) const {
    if ( nFinal == 1 )
      return 3;
    return 3*nFinal - 2;
  }
 
public:
 
  virtual bool haveX1X2() const { return true; }
 
  virtual bool wantCMS() const { return false; }
 
  virtual double invertTwoToNKinematics(const vector<Lorentz5Momentum>& momenta,
                                        double* r) const;
 
private:
 
  bool theLogSHat;
 
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:
 
  FlatInvertibleLabframePhasespace & operator=(const FlatInvertibleLabframePhasespace &) = delete;
 
};
 
}
 
#endif /* Herwig_FlatInvertiblePhasespace_H */