PDFRatio.h

// -*- C++ -*-
//
// PDFRatio.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_PDFRatio_H
#define HERWIG_PDFRatio_H
//
// This is the declaration of the PDFRatio class.
//
 
#include "ThePEG/Handlers/HandlerBase.h"
#include "ThePEG/PDF/PDF.h"
 
namespace Herwig {
 
using namespace ThePEG;
 
class PDFRatio: public HandlerBase {
 
public:
 
  PDFRatio();
 
public:
 
  double operator() (const PDF& pdf,
                     Energy2 scale,
                     tcPDPtr from, tcPDPtr to,
                     double x, double z) const;
 
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:
 
  double theValenceExtrapolation;
 
  double theSeaExtrapolation;
 
  Energy theFreezingScale;
 
private:
 
  static ClassDescription<PDFRatio> initPDFRatio;
 
  PDFRatio & operator=(const PDFRatio &) = delete;
 
};
 
}
 
#include "ThePEG/Utilities/ClassTraits.h"
 
namespace ThePEG {
 
template <>
struct BaseClassTrait<Herwig::PDFRatio,1> {
  typedef HandlerBase NthBase;
};
 
template <>
struct ClassTraits<Herwig::PDFRatio>
  : public ClassTraitsBase<Herwig::PDFRatio> {
  static string className() { return "Herwig::PDFRatio"; }
  static string library() { return "HwDipoleShower.so"; }
};
 
}
 
#endif /* HERWIG_PDFRatio_H */