ThePEG::Helicity::WaveFunctionBase Class Reference

#include <WaveFunctionBase.h>

Inheritance diagram for ThePEG::Helicity::WaveFunctionBase:

Public Member Functions
	WaveFunctionBase ()
	Constructors.
	WaveFunctionBase (const Lorentz5Momentum &p, tcPDPtr pd, Direction dir=intermediate)
Energy	px () const
	Access to the momentum components and mass.
Energy	py () const
	Get the y component of the momentum.
Energy	pz () const
	Get the z component of the momentum.
Energy	e () const
	Get the energy.
Energy	mass () const
	Get the mass.
Energy2	m2 () const
	Get off-shell mass squared.
const Lorentz5Momentum &	momentum () const
	Access to the 5-momentum.
long	id () const
	Access to the particle properties.
PDT::Spin	iSpin () const
	Get 2s+1 for the particle.
tcPDPtr	particle () const
	Get the particle pointer.
ThePEG::Helicity::Direction	direction () const
	Get the direction of particle.
void	direction (ThePEG::Helicity::Direction in)
	Set the direction of the particle.

Protected Member Functions
void	transformMomentum (const LorentzRotation &r)
	Perform the Lorentz transformation of the wave function.

Private Attributes
tcPDPtr	_particle
	Constant pointer to the particle info.
Lorentz5Momentum	_momentum
	Lorentz 5 momentum.
Direction	_dir
	Incoming or outgoing.

Detailed Description

Author

Peter Richardson

This class is the base class for all wavefunctions for use in helicity amplitude calculations. The general approach is to use a similar philosophy to the FORTRAN HELAS code but with additional structure.

This class contains the storage of the particle type and 5-momentum and methods to set/access this information.

The methods for the wavefunction itself will be implemented in the classes derived from this one for the specific spin type, for example scalar, spinor, vector and tensor.

See also

ScalarWaveFunction

SpinorWaveFunction

SpinorBarWaveFunction

VectorWaveFunction

RSSpinorWaveFunction

RSSpinorBarWaveFunction

TensorWaveFunction

Definition at line 58 of file WaveFunctionBase.h.

Constructor & Destructor Documentation

WaveFunctionBase() [1/2]

ThePEG::Helicity::WaveFunctionBase::WaveFunctionBase ( )

inline

Constructors.

Default constructor

Definition at line 67 of file WaveFunctionBase.h.

WaveFunctionBase() [2/2]

ThePEG::Helicity::WaveFunctionBase::WaveFunctionBase ( const Lorentz5Momentum &  p, tcPDPtr  pd, Direction  dir = intermediate  )

inline

Definition at line 74 of file WaveFunctionBase.h.

Member Function Documentation

direction() [1/2]

ThePEG::Helicity::Direction ThePEG::Helicity::WaveFunctionBase::direction ( ) const

inline

Get the direction of particle.

Definition at line 149 of file WaveFunctionBase.h.

References _dir.

direction() [2/2]

void ThePEG::Helicity::WaveFunctionBase::direction ( ThePEG::Helicity::Direction  in )

inline

Set the direction of the particle.

Definition at line 154 of file WaveFunctionBase.h.

References _dir.

e()

Energy ThePEG::Helicity::WaveFunctionBase::e ( ) const

inline

Get the energy.

Definition at line 109 of file WaveFunctionBase.h.

References _momentum.

id()

long ThePEG::Helicity::WaveFunctionBase::id ( ) const

inline

Access to the particle properties.

Get the particle id.

Definition at line 134 of file WaveFunctionBase.h.

References _particle.

iSpin()

PDT::Spin ThePEG::Helicity::WaveFunctionBase::iSpin ( ) const

inline

Get 2s+1 for the particle.

Definition at line 139 of file WaveFunctionBase.h.

References _particle.

Referenced by ThePEG::Helicity::Rank3TensorWaveFunction::Rank3TensorWaveFunction(), ThePEG::Helicity::RSSpinorBarWaveFunction::RSSpinorBarWaveFunction(), ThePEG::Helicity::RSSpinorWaveFunction::RSSpinorWaveFunction(), ThePEG::Helicity::ScalarWaveFunction::ScalarWaveFunction(), ThePEG::Helicity::SpinorBarWaveFunction::SpinorBarWaveFunction(), ThePEG::Helicity::SpinorWaveFunction::SpinorWaveFunction(), ThePEG::Helicity::TensorWaveFunction::TensorWaveFunction(), and ThePEG::Helicity::VectorWaveFunction::VectorWaveFunction().

m2()

Energy2 ThePEG::Helicity::WaveFunctionBase::m2 ( ) const

inline

Get off-shell mass squared.

Definition at line 119 of file WaveFunctionBase.h.

References _momentum, and ThePEG::LorentzVector< Value >::m2().

mass()

Energy ThePEG::Helicity::WaveFunctionBase::mass ( ) const

inline

Get the mass.

Definition at line 114 of file WaveFunctionBase.h.

References _momentum, and ThePEG::Lorentz5Vector< Value >::mass().

momentum()

const Lorentz5Momentum & ThePEG::Helicity::WaveFunctionBase::momentum ( ) const

inline

Access to the 5-momentum.

Definition at line 124 of file WaveFunctionBase.h.

References _momentum.

particle()

tcPDPtr ThePEG::Helicity::WaveFunctionBase::particle ( ) const

inline

Get the particle pointer.

Definition at line 144 of file WaveFunctionBase.h.

References _particle.

px()

Energy ThePEG::Helicity::WaveFunctionBase::px ( ) const

inline

Access to the momentum components and mass.

Get the x component of the momentum.

Definition at line 94 of file WaveFunctionBase.h.

References _momentum, and ThePEG::Lorentz5Vector< Value >::x().

py()

Energy ThePEG::Helicity::WaveFunctionBase::py ( ) const

inline

Get the y component of the momentum.

Definition at line 99 of file WaveFunctionBase.h.

References _momentum.

pz()

Energy ThePEG::Helicity::WaveFunctionBase::pz ( ) const

inline

Get the z component of the momentum.

Definition at line 104 of file WaveFunctionBase.h.

References _momentum.

transformMomentum()

void ThePEG::Helicity::WaveFunctionBase::transformMomentum ( const LorentzRotation &  r )

inlineprotected

Perform the Lorentz transformation of the wave function.

Definition at line 162 of file WaveFunctionBase.h.

References _momentum, and ThePEG::Lorentz5Vector< Value >::transform().

Referenced by ThePEG::Helicity::Rank3TensorWaveFunction::transform(), ThePEG::Helicity::RSSpinorBarWaveFunction::transform(), ThePEG::Helicity::RSSpinorWaveFunction::transform(), ThePEG::Helicity::SpinorBarWaveFunction::transform(), ThePEG::Helicity::SpinorWaveFunction::transform(), ThePEG::Helicity::TensorWaveFunction::transform(), and ThePEG::Helicity::VectorWaveFunction::transform().

Member Data Documentation

_dir

Direction ThePEG::Helicity::WaveFunctionBase::_dir

private

Incoming or outgoing.

Definition at line 181 of file WaveFunctionBase.h.

Referenced by direction().

_momentum

Lorentz5Momentum ThePEG::Helicity::WaveFunctionBase::_momentum

private

Lorentz 5 momentum.

Definition at line 176 of file WaveFunctionBase.h.

Referenced by e(), m2(), mass(), momentum(), px(), py(), pz(), and transformMomentum().

_particle

tcPDPtr ThePEG::Helicity::WaveFunctionBase::_particle

private

Constant pointer to the particle info.

Definition at line 171 of file WaveFunctionBase.h.

Referenced by id(), iSpin(), and particle().

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

• WaveFunctionBase.h