Here is the documentation of the DecayMatrixElement class. More...

#include <DecayMatrixElement.h>

Inheritance diagram for Herwig::DecayMatrixElement:

[legend]

Standard constructors and destructors.
unsigned int	nOut_
	Number of outgoing particles.

PDT::Spin	inSpin_
	Spin of the incoming particle as 2s+1.

vector< PDT::Spin >	outSpin_
	Spins of the outgoing particles.

	DecayMatrixElement (unsigned int ntemp=999, PDT::Spin spin=PDT::SpinUndefined)
	The default constructor.

virtual	~DecayMatrixElement ()
	The destructor.

PDT::Spin	inspin () const
	Access to the spins of the particles.

const vector< PDT::Spin > &	outspin () const
	Get the spins of the outgoing particles.

unsigned int	nOut () const
	Get the number of outgoing particles.

virtual RhoDMatrix	calculateDMatrix (const vector< RhoDMatrix > &rhoout) const =0
	Spin Density matrices.

virtual RhoDMatrix	calculateRhoMatrix (int ipart, const RhoDMatrix &rhoin, const vector< RhoDMatrix > &rhoout) const =0
	Calculate the \(\rho\) matrix for a given outgoing particle.

virtual Complex	contract (const RhoDMatrix &rhoin) const =0
	Contract the matrix element with the \(\rho\) matrix of the incoming particle.

virtual Complex	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2) const =0
	Access to the individual helicity components.

virtual Complex &	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2)=0
	Set the helicity components for a two body decay.

virtual Complex	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3) const =0
	Get the helicity components for a three body decay.

virtual Complex &	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3)=0
	Set the helicity components for a three body decay.

virtual Complex	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3, unsigned int outhel4) const =0
	Get the helicity components for a four body decay.

virtual Complex &	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3, unsigned int outhel4)=0
	Set the helicity components for a four body decay.

virtual Complex	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3, unsigned int outhel4, unsigned int outhel5) const =0
	Get the helicity components for a five body decay.

virtual Complex &	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3, unsigned int outhel4, unsigned int outhel5)=0
	Set the helicity components for a five body decay.

virtual Complex	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3, unsigned int outhel4, unsigned int outhel5, unsigned int outhel6) const =0
	Get the helicity components for a six body decay.

virtual Complex &	operator() (unsigned int inhel, unsigned int outhel1, unsigned int outhel2, unsigned int outhel3, unsigned int outhel4, unsigned int outhel5, unsigned int outhel6)=0
	Set the helicity components for a six body decay.

virtual Complex	operator() (const vector< unsigned int > &in) const =0
	Get the helicity components for an \(n\)-body decay.

virtual Complex &	operator() (const vector< unsigned int > &in)=0
	Set the helicity components for an \(n\)-body decay.

virtual void	zero ()=0
	Member to zero all the elements for the matrix element.

DecayMatrixElement &	operator= (const DecayMatrixElement &)=delete
	The assignment operator is private and must never be called.

vector< PDT::Spin > &	outspin ()
	Get the spins of the outgoing particles.

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

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

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

Here is the documentation of the DecayMatrixElement class.

Definition at line 21 of file DecayMatrixElement.h.

Constructor & Destructor Documentation

◆ DecayMatrixElement()

Herwig::DecayMatrixElement::DecayMatrixElement	(	unsigned int	ntemp = `999`,
		PDT::Spin	spin = `PDT::SpinUndefined`
	)

inline

The default constructor.

Definition at line 30 of file DecayMatrixElement.h.

Member Function Documentation

◆ calculateDMatrix()

virtual RhoDMatrix Herwig::DecayMatrixElement::calculateDMatrix ( const vector< RhoDMatrix > & rhoout ) const

pure virtual

Spin Density matrices.

Calculate the decay matrix for this decay.

Parameters

rhoout The \(D\) matrix for this decay.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ calculateRhoMatrix()

virtual RhoDMatrix Herwig::DecayMatrixElement::calculateRhoMatrix	(	int	ipart,
		const RhoDMatrix &	rhoin,
		const vector< RhoDMatrix > &	rhoout
	)		const

pure virtual

Calculate the \(\rho\) matrix for a given outgoing particle.

Parameters

ipart	The outgoing particle the \(\rho\) matrix is needed for
rhoin	The \(\rho\) matrix for the decaying particle.
rhoout	he \(D\) matrices for the other decay products.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ contract()

virtual Complex Herwig::DecayMatrixElement::contract ( const RhoDMatrix & rhoin ) const

pure virtual

Contract the matrix element with the \(\rho\) matrix of the incoming particle.

The spins of the decay products are summed over.

Parameters

rhoin The \(\rho\) matrix for the decaying particle.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ inspin()

PDT::Spin Herwig::DecayMatrixElement::inspin ( ) const

inline

Access to the spins of the particles.

Get the spin of the incoming particle.

Definition at line 48 of file DecayMatrixElement.h.

References inSpin_.

Referenced by Herwig::GeneralDecayMatrixElement::setMESize().

◆ nOut()

unsigned int Herwig::DecayMatrixElement::nOut ( ) const

inline

Get the number of outgoing particles.

Definition at line 59 of file DecayMatrixElement.h.

References nOut_.

◆ operator()() [1/12]

virtual Complex Herwig::DecayMatrixElement::operator() ( const vector< unsigned int > & in ) const

pure virtual

Get the helicity components for an \(n\)-body decay.

Parameters

in	The helicities of the external particles.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [2/12]

virtual Complex & Herwig::DecayMatrixElement::operator() ( const vector< unsigned int > & in )

pure virtual

Set the helicity components for an \(n\)-body decay.

Parameters

in	The helicities of the external particles.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [3/12]

virtual Complex Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2
	)		const

pure virtual

Access to the individual helicity components.

Get the helicity components for a two body decay

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [4/12]

virtual Complex & Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2
	)

pure virtual

Set the helicity components for a two body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [5/12]

virtual Complex Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3
	)		const

pure virtual

Get the helicity components for a three body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [6/12]

virtual Complex & Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3
	)

pure virtual

Set the helicity components for a three body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [7/12]

virtual Complex Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3,
		unsigned int	outhel4
	)		const

pure virtual

Get the helicity components for a four body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.
outhel4	The helicity of the fourth decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [8/12]

virtual Complex & Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3,
		unsigned int	outhel4
	)

pure virtual

Set the helicity components for a four body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.
outhel4	The helicity of the fourth decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [9/12]

virtual Complex Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3,
		unsigned int	outhel4,
		unsigned int	outhel5
	)		const

pure virtual

Get the helicity components for a five body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.
outhel4	The helicity of the fourth decay product.
outhel5	The helicity of the fifth decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [10/12]

virtual Complex & Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3,
		unsigned int	outhel4,
		unsigned int	outhel5
	)

pure virtual

Set the helicity components for a five body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.
outhel4	The helicity of the fourth decay product.
outhel5	The helicity of the fifth decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [11/12]

virtual Complex Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3,
		unsigned int	outhel4,
		unsigned int	outhel5,
		unsigned int	outhel6
	)		const

pure virtual

Get the helicity components for a six body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.
outhel4	The helicity of the fourth decay product.
outhel5	The helicity of the fifth decay product.
outhel6	The helicity of the sixth decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator()() [12/12]

virtual Complex & Herwig::DecayMatrixElement::operator()	(	unsigned int	inhel,
		unsigned int	outhel1,
		unsigned int	outhel2,
		unsigned int	outhel3,
		unsigned int	outhel4,
		unsigned int	outhel5,
		unsigned int	outhel6
	)

pure virtual

Set the helicity components for a six body decay.

Parameters

inhel	The helicity of the decaying particle.
outhel1	The helicity of the first decay product.
outhel2	The helicity of the second decay product.
outhel3	The helicity of the third decay product.
outhel4	The helicity of the fourth decay product.
outhel5	The helicity of the fifth decay product.
outhel6	The helicity of the sixth decay product.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

◆ operator=()

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

privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ outspin() [1/2]

vector< PDT::Spin > & Herwig::DecayMatrixElement::outspin ( )

inlineprotected

Get the spins of the outgoing particles.

Definition at line 252 of file DecayMatrixElement.h.

References outSpin_.

◆ outspin() [2/2]

const vector< PDT::Spin > & Herwig::DecayMatrixElement::outspin ( ) const

inline

Get the spins of the outgoing particles.

Definition at line 53 of file DecayMatrixElement.h.

References outSpin_.

Referenced by Herwig::GeneralDecayMatrixElement::GeneralDecayMatrixElement(), Herwig::GeneralDecayMatrixElement::operator()(), Herwig::GeneralDecayMatrixElement::setMESize(), and Herwig::TwoBodyDecayMatrixElement::TwoBodyDecayMatrixElement().

◆ zero()

virtual void Herwig::DecayMatrixElement::zero ( )

pure virtual

Member to zero all the elements for the matrix element.

Implemented in Herwig::GeneralDecayMatrixElement, and Herwig::TwoBodyDecayMatrixElement.

Member Data Documentation

◆ inSpin_

PDT::Spin Herwig::DecayMatrixElement::inSpin_

private

Spin of the incoming particle as 2s+1.

Definition at line 264 of file DecayMatrixElement.h.

Referenced by inspin().

◆ nOut_

unsigned int Herwig::DecayMatrixElement::nOut_

private

Number of outgoing particles.

Definition at line 259 of file DecayMatrixElement.h.

Referenced by nOut().

◆ outSpin_

vector<PDT::Spin> Herwig::DecayMatrixElement::outSpin_

private

Spins of the outgoing particles.

Definition at line 269 of file DecayMatrixElement.h.

Referenced by outspin().

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

DecayMatrixElement.h

Standard constructors and destructors.

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DecayMatrixElement()

Member Function Documentation

◆ calculateDMatrix()

◆ calculateRhoMatrix()

◆ contract()

◆ inspin()

◆ nOut()

◆ operator()() [1/12]

◆ operator()() [2/12]

◆ operator()() [3/12]

◆ operator()() [4/12]

◆ operator()() [5/12]

◆ operator()() [6/12]

◆ operator()() [7/12]

◆ operator()() [8/12]

◆ operator()() [9/12]

◆ operator()() [10/12]

◆ operator()() [11/12]

◆ operator()() [12/12]

◆ operator=()

◆ outspin() [1/2]

◆ outspin() [2/2]

◆ zero()

Member Data Documentation

◆ inSpin_

◆ nOut_

◆ outSpin_