WidthGenerator.h

// -*- C++ -*-
//
// WidthGenerator.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2007 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_WidthGenerator_H
#define ThePEG_WidthGenerator_H
// This is the declaration of the WidthGenerator class.

#include "ThePEG/Config/ThePEG.h"
#include "WidthGenerator.fh"
#include "ThePEG/Interface/Interfaced.h"
#include "ThePEG/Utilities/Selector.h"
#include "ThePEG/PDT/DecayMode.fh"

namespace ThePEG {

class WidthGenerator: public Interfaced {

public:

  typedef Selector<tDMPtr> DecayMap;

public:

  virtual bool accept(const ParticleData &) const = 0;

  Energy width(const Particle &) const;

  virtual Energy width(const ParticleData &, Energy m) const = 0;

  virtual Length lifeTime(const ParticleData &, Energy m, Energy w) const;

  virtual DecayMap rate(const ParticleData &) const = 0;

  virtual DecayMap rate(const Particle &);

public:

  static void Init();

private:

  static AbstractNoPIOClassDescription<WidthGenerator> initWidthGenerator;

  WidthGenerator & operator=(const WidthGenerator &);

};

template <>
struct BaseClassTrait<WidthGenerator,1>: public ClassTraitsType {
  typedef Interfaced NthBase;
};

template <>
struct ClassTraits<WidthGenerator>: public ClassTraitsBase<WidthGenerator> {
  static string className() { return "ThePEG::WidthGenerator"; }
};

}

#endif /* ThePEG_WidthGenerator_H */

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