This class performs the decay of light clusters into a single hadron. More...

#include <LightClusterDecayer.h>

Inheritance diagram for Herwig::LightClusterDecayer:

[legend]

Public Member Functions
Standard constructors and destructors.
	LightClusterDecayer ()
	Default constructor.

bool	decay (ClusterVector &clusters, tPVector &finalhadrons)
	This method does the decay of light hadron in one hadron.

Public Member Functions inherited from ThePEG::Interfaced
virtual bool	defaultInit ()

PPtr	getParticle (PID) const

PDPtr	getParticleData (PID) const

bool	used () const

void	useMe () const

tEGPtr	generator () const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

PPtr	getParticle (PID) const

PDPtr	getParticleData (PID) const

bool	used () const

void	useMe () const

tEGPtr	generator () const

Public Member Functions inherited from ThePEG::InterfacedBase
string	fullName () const

string	name () const

string	path () const

string	comment () const

void	setup (istream &is)

void	update ()

void	init ()

virtual bool	preInitialize () const

void	initrun ()

void	finish ()

void	touch ()

void	reset ()

void	clear ()

InitState	state () const

bool	locked () const

bool	touched () const

virtual IBPtr	fullclone () const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

virtual void	debugme () const

void	update ()

void	init ()

virtual bool	preInitialize () const

void	initrun ()

void	finish ()

void	touch ()

void	reset ()

void	clear ()

InitState	state () const

bool	locked () const

bool	touched () const

virtual IBPtr	fullclone () const

Public Member Functions inherited from ThePEG::Base
void	debug () const

virtual void	debugme () const

Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const

Public Member Functions inherited from ThePEG::Named
	Named (const string &newName=string())

	Named (const Named &)=default

const string &	name () const

bool	operator== (const Named &other) const

bool	operator< (const Named &other) const

Clone Methods.
Ptr< HadronSelector >::pointer	_hadronSelector
	A pointer to a Herwig::HadronSelector object used for producing hadrons.

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.

LightClusterDecayer &	operator= (const LightClusterDecayer &)=delete
	Private and non-existent assignment operator.

bool	reshuffling (const tcPDPtr, tClusterPtr, tClusterPtr, tClusterVector &, tPVector &finalhadrons)
	This (private) method, called by decay(), takes care of the kinematical reshuffling necessary for energy-momentum conservation.

bool	partonicReshuffle (const tcPDPtr hadron, const PPtr cluster, tPVector &finalhadrons)
	This (private) method, called by decay(), performs reshuffling in the special case of a semileptonic partonic b/c decay.

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.

static void	Init ()
	Standard Init function used to initialize the interfaces.

Additional Inherited Members
Public Types inherited from ThePEG::InterfacedBase
enum	InitState

Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType

Static Public Member Functions inherited from ThePEG::Interfaced
static void	Init ()

Static Public Member Functions inherited from ThePEG::InterfacedBase
static void	Init ()

Static Public Member Functions inherited from ThePEG::Base
static void	Init ()

Public Attributes inherited from ThePEG::InterfacedBase
	initializing

	uninitialized

	initialized

	runready

Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId

Protected Member Functions inherited from ThePEG::Interfaced
void	reporeg (IBPtr object, string name) const

bool	setDefaultReference (PtrT &ptr, string classname, string objectname)

	Interfaced (const string &newName)

	Interfaced (const Interfaced &i)

void	setGenerator (tEGPtr generator)

Protected Member Functions inherited from ThePEG::InterfacedBase
virtual void	readSetup (istream &is)

virtual void	doupdate ()

virtual void	doinit ()

virtual void	doinitrun ()

virtual void	dofinish ()

virtual IVector	getReferences ()

virtual void	rebind (const TranslationMap &)

virtual IBPtr	clone () const=0

	InterfacedBase (string newName)

	InterfacedBase (const InterfacedBase &i)

virtual void	readSetup (istream &is)

virtual void	doupdate ()

virtual void	doinit ()

virtual void	doinitrun ()

virtual void	dofinish ()

virtual IVector	getReferences ()

virtual void	rebind (const TranslationMap &)

Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted (const ReferenceCounted &)

ReferenceCounted &	operator= (const ReferenceCounted &)

Protected Member Functions inherited from ThePEG::Named
const Named &	operator= (const Named &other)

const string &	name (const string &newName)

Static Protected Member Functions inherited from ThePEG::Interfaced
static void	registerRepository (IBPtr)

static void	registerRepository (IBPtr, string newName)

Detailed Description

This class performs the decay of light clusters into a single hadron.

Author: Philip Stephens; Alberto Ribon

This is the class that performs the decay of light clusters into only one hadron. The major difficulty is that a kinematical reshuffling is necessary, between the cluster under consideration and its "neighbouring" clusters, to conserve energy-momentum in one-body decay. Notice that, differently from what happens in Fortran Herwig, light (that is below the threshold for the production of the lightest pair of hadrons with the proper flavours) fission products, produced by the fission of heavy clusters in ClusterFissioner have been already "decayed" into single hadron (the lightest one with proper flavour) by the same latter class, without require any reshuffling. Therefore the light clusters that are treated in this LightClusterDecayer class are produced directly (originally) by the ClusterFinder.

Notice:

The choice of the candidate cluster with whom to reshuffle momentum is based on the minimal space-time distance from the light cluster.
An alternate choice of what is considered a "neighbour" could be implemented but was not considered for Herwig.

See also: HadronSelector; The interfaces defined for LightClusterDecayer.

Definition at line 53 of file LightClusterDecayer.h.

Constructor & Destructor Documentation

◆ LightClusterDecayer()

Herwig::LightClusterDecayer::LightClusterDecayer ( )

inline

Default constructor.

Definition at line 62 of file LightClusterDecayer.h.

Member Function Documentation

◆ clone()

virtual IBPtr Herwig::LightClusterDecayer::clone ( ) const

protectedvirtual

Make a simple clone of this object.

Returns: a pointer to the new object.

Implements ThePEG::InterfacedBase.

◆ decay()

bool Herwig::LightClusterDecayer::decay	(	ClusterVector &	clusters,
		tPVector &	finalhadrons
	)

This method does the decay of light hadron in one hadron.

This method requires a kinematical reshuffling for energy-momentum conservation. This is done explicitly by the (private) method reshuffling().

◆ fullclone()

virtual IBPtr Herwig::LightClusterDecayer::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::InterfacedBase.

◆ partonicReshuffle()

bool Herwig::LightClusterDecayer::partonicReshuffle	(	const tcPDPtr	hadron,
		const PPtr	cluster,
		tPVector &	finalhadrons
	)

private

This (private) method, called by decay(), performs reshuffling in the special case of a semileptonic partonic b/c decay.

Parameters

hadron	The hadron to be produced
cluster	The cluster to be reshuffled
finalhadrons	The vector of outgoing hadrons

◆ persistentInput()

void Herwig::LightClusterDecayer::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.

◆ persistentOutput()

void Herwig::LightClusterDecayer::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters

os	the persistent output stream written to.

Member Data Documentation

◆ _hadronSelector

Ptr<HadronSelector>::pointer Herwig::LightClusterDecayer::_hadronSelector

private

A pointer to a Herwig::HadronSelector object used for producing hadrons.

Definition at line 142 of file LightClusterDecayer.h.

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

LightClusterDecayer.h

Public Member Functions

Clone Methods.

Functions used by the persistent I/O system.

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LightClusterDecayer()

Member Function Documentation

◆ clone()

◆ decay()

◆ fullclone()

◆ partonicReshuffle()

◆ persistentInput()

◆ persistentOutput()

Member Data Documentation

◆ _hadronSelector