The WeakToHadronsDecayer class inherits from QuarksToHadronsDecayer and can performs weak decays of taus and charmed and bottom hadrons. More...

#include <WeakToHadronsDecayer.h>

Inheritance diagram for ThePEG::WeakToHadronsDecayer:

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List of all members.

Public Member Functions
Virtual functions required by the Decayer and
QuarksToHadronsDecayer classes.
virtual bool	accept (const DecayMode &dm) const
	Check if this decayer can perfom the decay specified by the given decay mode.
virtual double	reweight (const Particle &parent, const PVector &children) const
	Called by QuarksToHadronsDecayer::distribute() to reweight the default flat phase spece.
virtual PVector	getHadrons (int Nh, tcPDVector quarks) const
	Produce Nh hadrons from the specified quarks.
Functions used by the persistent I/O system.
void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.
void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.
Public Member Functions inherited from ThePEG::QuarksToHadronsDecayer
virtual int	getN (Energy m0, Energy summq, int Nq) const
	Get the number of hadrons to be produced, given the mass of the decaying particle, m0, and the number, Nq and summed masses of the quarks, summq.
virtual void	distribute (const Particle &parent, PVector &children) const
	Distribute the produced children in phase space.
int	fixedN () const
	Return the fixed number of hadrons to be produced.
int	minN () const
	Return the minimum number of hadrons to be produced.
double	c1 () const
	Return the parameter used for the multiplicity distriution.
Energy	c2 () const
	Return the parameter used for the multiplicity distriution.
double	c3 () const
	Return the parameter used for the multiplicity distriution.
tcFlavGenPtr	flavourGenerator () const
	Return a pointer to the flavour generator to be used.
	QuarksToHadronsDecayer ()
	Default constructor.
virtual	~QuarksToHadronsDecayer ()
	Destructor.
virtual ParticleVector	decay (const DecayMode &dm, const Particle &p) const
	Perform a decay for a given DecayMode and a given Particle instance.
Public Member Functions inherited from ThePEG::Decayer
Ptr< Amplitude >::pointer	amplitude () const
	Return an amplitude associated with this decay matrix element.
virtual bool	needsFullStep () const
	Return true if this Decayer need to access the full current step when a particle is decayed.
virtual ParticleVector	decay (const DecayMode &dm, const Particle &p, Step &step) const
	Perform a decay for a given DecayMode and a given Particle instance.
virtual double	brat (const DecayMode &dm, const ParticleData &pd, double oldbrat) const
	Calculate branching ratio.
virtual double	brat (const DecayMode &dm, const Particle &p, double oldbrat) const
	Calculate branching ratio.
virtual ParticleVector	getChildren (const DecayMode &dm, const Particle &parent) const
	Produce the children.
virtual void	finalBoost (const Particle &parent, const ParticleVector &children) const
	Boost the decay products.
virtual void	setScales (const Particle &parent, const ParticleVector &children) const
	Set the scales.

Static Public Member Functions
static void	Init ()
	Standard Init function used to initialize the interfaces.

Protected Member Functions
Clone Methods.
virtual IBPtr	clone () const
	Make a simple clone of this object.
virtual IBPtr	fullclone () const
	Make a clone of this object, possibly modifying the cloned object to make it sane.
Clone Methods.

Private Member Functions
WeakToHadronsDecayer &	operator= (const WeakToHadronsDecayer &)
	Private and non-existent assignment operator.

Static Private Attributes
static ClassDescription < WeakToHadronsDecayer >	initWeakToHadronsDecayer
	Describe a concrete class with persistent data.

Detailed Description

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 also:: The interfaces defined for WeakToHadronsDecayer.

Definition at line 31 of file WeakToHadronsDecayer.h.

Member Function Documentation

virtual bool ThePEG::WeakToHadronsDecayer::accept ( const DecayMode & dm ) const

virtual

Check if this decayer can perfom the decay specified by the given decay mode.

Parameters:

dm	the DecayMode describing the decay.

Returns:: true if this decayer can handle the given mode, otherwise false.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

virtual IBPtr ThePEG::WeakToHadronsDecayer::clone ( ) const

protectedvirtual

Make a simple clone of this object.

Returns:: a pointer to the new object.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

virtual IBPtr ThePEG::WeakToHadronsDecayer::fullclone ( ) const

protectedvirtual

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns:: a pointer to the new object.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

virtual PVector ThePEG::WeakToHadronsDecayer::getHadrons	(	int	Nh,
		tcPDVector	quarks
	)		const

virtual

Produce Nh hadrons from the specified quarks.

The last quark is considered to be a spectator quark.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

void ThePEG::WeakToHadronsDecayer::persistentInput	(	PersistentIStream &	is,
		int	version
	)

Function used to read in object persistently.

Parameters:

is	the persistent input stream read from.
version	the version number of the object when written.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

void ThePEG::WeakToHadronsDecayer::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters:

os	the persistent output stream written to.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

virtual double ThePEG::WeakToHadronsDecayer::reweight	(	const Particle &	parent,
		const PVector &	children
	)		const

virtual

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.

Reimplemented from ThePEG::QuarksToHadronsDecayer.

The documentation for this class was generated from the following file:

WeakToHadronsDecayer.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Static Private Attributes

Detailed Description

Member Function Documentation