Herwig::ShowerVertex Class Reference

#include <ShowerVertex.h>

Inheritance diagram for Herwig::ShowerVertex:

Public Member Functions
	ShowerVertex ()
	Default constructor.
const DecayMEPtr	ME () const
	Access to the matrix element.
void	ME (DecayMEPtr in) const
	Set the matrix element.
void	incomingBasisTransform (RhoDMatrix conv)
	Set the change of basis for the incoming particle.
virtual RhoDMatrix	getRhoMatrix (int iprod, bool) const
	Method to calculate the \(\rho\) matrix for one of the decay products.
virtual RhoDMatrix	getDMatrix (int) const
	Method to calculate the \(D\) matrix for the decaying particle.
RhoDMatrix	mapIncoming (RhoDMatrix rho) const
	Get the transformed rho matrix.
Public Member Functions inherited from ThePEG::HelicityVertex
virtual void	rebind (const EventTranslationMap &trans)
const SpinVector &	incoming () const
const SpinVector &	outgoing () const
void	addIncoming (tcSpinPtr spin, int &loc)
void	addOutgoing (tcSpinPtr spin, int &loc)
void	resetIncoming (tcSpinPtr spin, int loc)
void	resetOutgoing (tcSpinPtr spin, int loc)
virtual RhoDMatrix	getRhoMatrix (int loc, bool recursive) const=0
virtual RhoDMatrix	getDMatrix (int loc) const=0
const SpinVector &	incoming () const
const SpinVector &	outgoing () const
void	addIncoming (tcSpinPtr spin, int &loc)
void	addOutgoing (tcSpinPtr spin, int &loc)
void	resetIncoming (tcSpinPtr spin, int loc)
void	resetOutgoing (tcSpinPtr spin, int loc)
Public Member Functions inherited from ThePEG::EventInfoBase
virtual void	rebind (const EventTranslationMap &)
virtual EIPtr	clone () 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

Static Public Member Functions
static void	Init ()
	The standard Init function used to initialize the interfaces.
Static Public Member Functions inherited from ThePEG::HelicityVertex
static void	Init ()
Static Public Member Functions inherited from ThePEG::EventInfoBase
static void	Init ()
Static Public Member Functions inherited from ThePEG::Base
static void	Init ()

Private Member Functions
ShowerVertex &	operator= (const ShowerVertex &)=delete
	The assignment operator is private and must never be called.

Private Attributes
DecayMEPtr	matrixElement_
	Storage of the decay matrix element.
bool	convertIn_
	Whether or not the incoming spin density matrices need to be converted.
vector< bool >	convertOut_
	Whether or not the outgoing spin density matrices need to be converted.
RhoDMatrix	inMatrix_
	Storage of conversion for incoming particle.
vector< RhoDMatrix >	outMatrix_
	Storage of conversion for outgoing particles.

Additional Inherited Members
Public Types inherited from ThePEG::HelicityVertex
typedef vector< tcSpinPtr >	SpinVector
Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType
Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId
Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted (const ReferenceCounted &)
ReferenceCounted &	operator= (const ReferenceCounted &)

Detailed Description

Author

Peter Richardson

The ShowerVertex class is designed to implement the vertex for a branching in the shower for use with the spin correlation alogorithm. It inherits from HelicityVertex class of ThePEG and implements the methods to calculate the \(\rho\) and \(D\) matrices.

It uses the DecayMatrixElement class to store the matrix element and it is this class which performs the calculations of the matrices.

See also

HelicityVertex

DecayMatrixElement

The interfaces defined for ShowerVertex.

Definition at line 40 of file ShowerVertex.h.

Constructor & Destructor Documentation

ShowerVertex()

Herwig::ShowerVertex::ShowerVertex ( )

inline

Default constructor.

Definition at line 47 of file ShowerVertex.h.

Member Function Documentation

getDMatrix()

virtual RhoDMatrix Herwig::ShowerVertex::getDMatrix ( int  ) const

virtual

Method to calculate the \(D\) matrix for the decaying particle.

It this case the argument is a dummy.

Implements ThePEG::HelicityVertex.

getRhoMatrix()

virtual RhoDMatrix Herwig::ShowerVertex::getRhoMatrix ( int  iprod, bool    ) const

virtual

Method to calculate the \(\rho\) matrix for one of the decay products.

Parameters

iprod

The product we are calculating the \(\rho\) matrix for.

Implements ThePEG::HelicityVertex.

incomingBasisTransform()

void Herwig::ShowerVertex::incomingBasisTransform ( RhoDMatrix  conv )

inline

Set the change of basis for the incoming particle.

Definition at line 74 of file ShowerVertex.h.

References convertIn_, and inMatrix_.

Init()

static void Herwig::ShowerVertex::Init ( )

static

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.

ME() [1/2]

const DecayMEPtr Herwig::ShowerVertex::ME ( ) const

inline

Access to the matrix element.

Get the matrix element

Definition at line 59 of file ShowerVertex.h.

References matrixElement_.

ME() [2/2]

void Herwig::ShowerVertex::ME ( DecayMEPtr  in ) const

inline

Set the matrix element.

Definition at line 66 of file ShowerVertex.h.

References matrixElement_.

operator=()

ShowerVertex & Herwig::ShowerVertex::operator= ( const ShowerVertex &  )

privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

Member Data Documentation

convertIn_

bool Herwig::ShowerVertex::convertIn_

private

Whether or not the incoming spin density matrices need to be converted.

Definition at line 126 of file ShowerVertex.h.

Referenced by incomingBasisTransform().

convertOut_

vector<bool> Herwig::ShowerVertex::convertOut_

private

Whether or not the outgoing spin density matrices need to be converted.

Definition at line 131 of file ShowerVertex.h.

inMatrix_

RhoDMatrix Herwig::ShowerVertex::inMatrix_

private

Storage of conversion for incoming particle.

Definition at line 136 of file ShowerVertex.h.

Referenced by incomingBasisTransform().

matrixElement_

DecayMEPtr Herwig::ShowerVertex::matrixElement_

mutableprivate

Storage of the decay matrix element.

Definition at line 121 of file ShowerVertex.h.

Referenced by ME().

outMatrix_

vector<RhoDMatrix> Herwig::ShowerVertex::outMatrix_

private

Storage of conversion for outgoing particles.

Definition at line 142 of file ShowerVertex.h.

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

• ShowerVertex.h