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ThePEG  2.2.1
ThePEG::Helicity::WaveFunctionBase Class Reference

#include <WaveFunctionBase.h>

Inheritance diagram for ThePEG::Helicity::WaveFunctionBase:

Public Member Functions

 WaveFunctionBase ()
 Constructors. More...
 
 WaveFunctionBase (const Lorentz5Momentum &p, tcPDPtr pd, Direction dir=intermediate)
 
Energy px () const
 Access to the momentum components and mass. More...
 
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 Lorentz5Momentummomentum () const
 Access to the 5-momentum.
 
long id () const
 Access to the particle properties. More...
 
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()

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

Member Function Documentation

◆ 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.

◆ 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().


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