Herwig::SpinCorrelationTensor Class Reference

SpinCorrelationTensor represents a spin correlation tensor of the form. More...

#include <SpinCorrelationTensor.h>

Public Member Functions
	SpinCorrelationTensor (double diag, const Lorentz5Momentum &p, Energy2 sc)
	The standard constructor, giving diagonal part, and vector for off-diagonal components and the scale.
double	diagonal () const
	Return the diagonal part.
const Lorentz5Momentum &	momentum () const
	Return the off-diagonal vector part.
Energy2	scale () const
	Return the scale.
Complex	matrixElement (const LorentzVector< Complex > &left, const LorentzVector< Complex > &right) const
	Return a matrix element of the diagonal part, by contracting with the given polarization vectors.

Private Attributes
double	theDiagonal
	The diagonal part.
Lorentz5Momentum	theMomentum
	The vector to define to off-diagonal part.
Energy2	theScale
	The scale for the off-diagonal part.

Detailed Description

SpinCorrelationTensor represents a spin correlation tensor of the form.

Author

Simon Platzer

c g^{\mu\nu} + p^\mu p^\nu / Q^2

Definition at line 28 of file SpinCorrelationTensor.h.

Constructor & Destructor Documentation

SpinCorrelationTensor()

Herwig::SpinCorrelationTensor::SpinCorrelationTensor ( double  diag, const Lorentz5Momentum &  p, Energy2  sc  )

inline

The standard constructor, giving diagonal part, and vector for off-diagonal components and the scale.

Definition at line 52 of file SpinCorrelationTensor.h.

Member Function Documentation

diagonal()

double Herwig::SpinCorrelationTensor::diagonal ( ) const

inline

Return the diagonal part.

Definition at line 62 of file SpinCorrelationTensor.h.

References theDiagonal.

matrixElement()

Complex Herwig::SpinCorrelationTensor::matrixElement ( const LorentzVector< Complex > &  left, const LorentzVector< Complex > &  right  ) const

inline

Return a matrix element of the diagonal part, by contracting with the given polarization vectors.

Definition at line 80 of file SpinCorrelationTensor.h.

References ThePEG::left(), momentum(), ThePEG::right(), and scale().

momentum()

const Lorentz5Momentum & Herwig::SpinCorrelationTensor::momentum ( ) const

inline

Return the off-diagonal vector part.

Definition at line 67 of file SpinCorrelationTensor.h.

References theMomentum.

Referenced by matrixElement().

scale()

Energy2 Herwig::SpinCorrelationTensor::scale ( ) const

inline

Return the scale.

Definition at line 72 of file SpinCorrelationTensor.h.

References theScale.

Referenced by matrixElement().

Member Data Documentation

theDiagonal

double Herwig::SpinCorrelationTensor::theDiagonal

private

The diagonal part.

Definition at line 33 of file SpinCorrelationTensor.h.

Referenced by diagonal().

theMomentum

Lorentz5Momentum Herwig::SpinCorrelationTensor::theMomentum

private

The vector to define to off-diagonal part.

Definition at line 38 of file SpinCorrelationTensor.h.

Referenced by momentum().

theScale

Energy2 Herwig::SpinCorrelationTensor::theScale

private

The scale for the off-diagonal part.

Definition at line 43 of file SpinCorrelationTensor.h.

Referenced by scale().

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

• SpinCorrelationTensor.h