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SMHiggsMassGenerator.h
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SMHiggsMassGenerator.h
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// -*- C++ -*-
//
// SMHiggsMassGenerator.h is a part of Herwig++ - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2007 The Herwig Collaboration
//
// Herwig++ is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef HERWIG_SMHiggsMassGenerator_H
#define HERWIG_SMHiggsMassGenerator_H
//
// This is the declaration of the SMHiggsMassGenerator class.
//
#include "GenericMassGenerator.h"
#include "SMHiggsWidthGenerator.h"
#include "SMHiggsMassGenerator.fh"
namespace Herwig {
using namespace ThePEG;
/**
* The SMHiggsMassGenerator class implements the generation
* of the Higgs boson mass according to the prescription of hep-ph/9505211
*
* @see \ref SMHiggsMassGeneratorInterfaces "The interfaces"
* defined for SMHiggsMassGenerator.
*/
class SMHiggsMassGenerator: public GenericMassGenerator {
public:
/**
* The default constructor.
*/
inline SMHiggsMassGenerator();
/**
* Weight for the factor for an off-shell mass
* @param mass The off-shell mass
* @param shape The type of shape to use as for the BreitWignerShape interface
* @return The weight.
*/
inline virtual double weight(Energy mass,int shape) const;
/**
* Weight for the factor for an off-shell mass
* @param mass The off-shell mass
* @param shape The type of shape to use as for the BreitWignerShape interface
* @return The weight.
*/
inline InvEnergy2 BreitWignerWeight(Energy mass,int shape) const;
/**
* Return true if this mass generator can handle the given particle type.
* @param part The particle data pointer of the particle.
* @return True ig this class can handle the particle and false otherwise
*/
bool accept(const ParticleData & part) const;
/**
* output for the database
*/
virtual void dataBaseOutput(ofstream &,bool);
/** @name Functions used by the persistent I/O system. */
//@{
/**
* Function used to write out object persistently.
* @param os the persistent output stream written to.
*/
void persistentOutput(PersistentOStream & os) const;
/**
* Function used to read in object persistently.
* @param is the persistent input stream read from.
* @param version the version number of the object when written.
*/
void persistentInput(PersistentIStream & is, int version);
//@}
/**
* The standard Init function used to initialize the interfaces.
* Called exactly once for each class by the class description system
* before the main function starts or
* when this class is dynamically loaded.
*/
static void Init();
protected:
/** @name Clone Methods. */
//@{
/**
* Make a simple clone of this object.
* @return a pointer to the new object.
*/
inline virtual IBPtr clone() const;
/** Make a clone of this object, possibly modifying the cloned object
* to make it sane.
* @return a pointer to the new object.
*/
inline virtual IBPtr fullclone() const;
//@}
protected:
/** @name Standard Interfaced functions. */
//@{
/**
* Initialize this object after the setup phase before saving and
* EventGenerator to disk.
* @throws InitException if object could not be initialized properly.
*/
inline virtual void doinit() throw(InitException);
//@}
private:
/**
* The static object used to initialize the description of this class.
* Indicates that this is a concrete class with persistent data.
*/
static ClassDescription<SMHiggsMassGenerator> initSMHiggsMassGenerator;
/**
* The assignment operator is private and must never be called.
* In fact, it should not even be implemented.
*/
SMHiggsMassGenerator & operator=(const SMHiggsMassGenerator &);
private:
/**
* Option for the line-shape
*/
unsigned int _shape;
/**
* The width generator
*/
SMHiggsWidthGeneratorPtr _hwidth;
};
}
#include "ThePEG/Utilities/ClassTraits.h"
namespace ThePEG {
/** @cond TRAITSPECIALIZATIONS */
/** This template specialization informs ThePEG about the
* base classes of SMHiggsMassGenerator. */
template <>
struct BaseClassTrait<Herwig::SMHiggsMassGenerator,1> {
/** Typedef of the first base class of SMHiggsMassGenerator. */
typedef Herwig::GenericMassGenerator NthBase;
};
/** This template specialization informs ThePEG about the name of
* the SMHiggsMassGenerator class and the shared object where it is defined. */
template <>
struct ClassTraits<Herwig::SMHiggsMassGenerator>
: public ClassTraitsBase<Herwig::SMHiggsMassGenerator> {
/** Return a platform-independent class name */
static string className() { return "Herwig::SMHiggsMassGenerator"; }
};
/** @endcond */
}
#include "SMHiggsMassGenerator.icc"
#endif /* HERWIG_SMHiggsMassGenerator_H */

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