AlphaEM.h

// -*- C++ -*-
//
// AlphaEM.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_AlphaEM_H
#define HERWIG_AlphaEM_H
//
// This is the declaration of the AlphaEM class.
//
 
#include "ThePEG/StandardModel/AlphaEMBase.h"
 
namespace Herwig {
 
using namespace ThePEG;
 
 
class AlphaEM: public AlphaEMBase {
 
public:
 
  AlphaEM() : _me(),_mmu(),_mtau(), _mtop() {}
 
  virtual double value(Energy2 scale, const StandardModelBase &) const;
 
public:
 
  void persistentOutput(PersistentOStream & os) const;
 
  void persistentInput(PersistentIStream & is, int version);
 
  static void Init();
 
protected:
 
  double realPi(double ratio) const;
 
protected:
 
  virtual IBPtr clone() const;
 
  virtual IBPtr fullclone() const;
 
protected:
 
  virtual void doinit();
 
private:
 
  AlphaEM & operator=(const AlphaEM &) = delete;
 
 
private:
 
  Energy2 _me;
 
  Energy2 _mmu;
 
  Energy2 _mtau;
 
  Energy2 _mtop;
};
 
}
 
#endif /* HERWIG_AlphaEM_H */