/usr/include/ThePEG/PDT/WeakToHadronsDecayer.h is in libthepeg-dev 1.8.0-1.
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//
// WeakToHadronsDecayer.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2011 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_WeakToHadronsDecayer_H
#define THEPEG_WeakToHadronsDecayer_H
// This is the declaration of the WeakToHadronsDecayer class.
#include "ThePEG/PDT/QuarksToHadronsDecayer.h"
namespace ThePEG {
/**
* The WeakToHadronsDecayer class inherits from QuarksToHadronsDecayer
* and can performs weak decays of taus and charmed and bottom
* hadrons. The intermediate W can either decay leptonically in which
* case standard V-A matrix element is used, or it can decay into
* quarks in which case the conversion into quarks is performed as for
* the QuarkToHadronsDecayer base class. In both cases the W decay
* products should be specified first. The spectator system can either
* be specified in terms of hadrons or in terms of quarks which will
* be collapsed into a single hadron.
*
* @see \ref WeakToHadronsDecayerInterfaces "The interfaces"
* defined for WeakToHadronsDecayer.
*/
class WeakToHadronsDecayer: public QuarksToHadronsDecayer {
public:
/** @name Virtual functions required by the Decayer and
QuarksToHadronsDecayer classes.
*/
//@{
/**
* Check if this decayer can perfom the decay specified by the
* given decay mode.
* @param dm the DecayMode describing the decay.
* @return true if this decayer can handle the given mode, otherwise false.
*/
virtual bool accept(const DecayMode & dm) const;
/**
* Called by QuarksToHadronsDecayer::distribute() to reweight the
* default flat phase spece. Can be overridden by sub-classes and
* should return a number between 0 and 1. This version returns 1.
*/
virtual double reweight(const Particle & parent,
const PVector & children) const;
/**
* Produce \a Nh hadrons from the specified \a quarks. The last
* quark is considered to be a spectator quark.
*/
virtual PVector getHadrons(int Nh, tcPDVector quarks) const;
//@}
public:
/** @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);
//@}
/**
* Standard Init function used to initialize the interfaces.
*/
static void Init();
protected:
/** @name Clone Methods. */
//@{
/**
* Make a simple clone of this object.
* @return a pointer to the new object.
*/
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.
*/
virtual IBPtr fullclone() const;
//@}
private:
/**
* Describe a concrete class with persistent data.
*/
static ClassDescription<WeakToHadronsDecayer> initWeakToHadronsDecayer;
/**
* Private and non-existent assignment operator.
*/
WeakToHadronsDecayer & operator=(const WeakToHadronsDecayer &);
};
}
namespace ThePEG {
/** @cond TRAITSPECIALIZATIONS */
/** This template specialization informs ThePEG about the base classes
* of WeakToHadronsDecayer. */
template <>
struct BaseClassTrait<WeakToHadronsDecayer,1>: public ClassTraitsType {
/** Typedef of the first base class of WeakToHadronsDecayer. */
typedef QuarksToHadronsDecayer NthBase;
};
/** This template specialization informs ThePEG about the name of the
* WeakToHadronsDecayer class and the shared object where it is
* defined. */
template <>
struct ClassTraits<WeakToHadronsDecayer>
: public ClassTraitsBase<WeakToHadronsDecayer> {
/** Return a platform-independent class name */
static string className() { return "ThePEG::WeakToHadronsDecayer"; }
/** Return the name of the shared library be loaded to get access to
* the WeakToHadronsDecayer class and every other class it uses
* (except the base class). */
static string library() { return "WeakToHadronsDecayer.so"; }
};
/** @endcond */
}
#endif /* THEPEG_WeakToHadronsDecayer_H */
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