#include <Rank3TensorWaveFunction.h>

Inheritance diagram for ThePEG::Helicity::Rank3TensorWaveFunction:

Standard constructors and destructors.
LorentzRank3Tensor< double >	_wf
	Storage of the wavefunction as a Lorentz Rank3Tensor.

	Rank3TensorWaveFunction (const Lorentz5Momentum &p, tcPDPtr part, const LorentzRank3Tensor< double > &wave, Direction dir=intermediate)
	Constructor, set the momentum and Wavefunction, the direction can also be specified.

	Rank3TensorWaveFunction (const Lorentz5Momentum &p, tcPDPtr part, unsigned int ihel, Direction dir)
	Constructor, set the momentum, helicity, direction and optionally the phase.

	Rank3TensorWaveFunction (const Lorentz5Momentum &p, tcPDPtr part, Direction dir)
	Constructor, set the 5-momentum and direction, zero the wavefunction.

	Rank3TensorWaveFunction ()
	Default constructor.

	Rank3TensorWaveFunction (vector< Rank3TensorWaveFunction > &wave, tPPtr part, Direction dir, bool time, bool massless, bool=true)
	Special for spin correlations.

Complex	operator() (int i, int j, int k) const
	Access to the wavefunction and its components.

Complex &	operator() (int i, int j, int k)
	Set components by index.

const LorentzRank3Tensor< double > &	wave () const
	Return wavefunction as polarization rank-3 tensor .

void	reset (unsigned int ihel)
	Reset functions.

void	transform (const LorentzRotation &r)
	Perform the Lorentz transformation of the wave function.

static void	calculateWaveFunctions (vector< LorentzRank3Tensor< double > > &waves, tPPtr particle, Direction, bool massless)
	Calculate the wavefunctions.

static void	calculateWaveFunctions (vector< Rank3TensorWaveFunction > &waves, tPPtr particle, Direction, bool massless)
	Calculate the wavefunctions.

static void	calculateWaveFunctions (vector< LorentzRank3Tensor< double > > &waves, RhoDMatrix &rho, tPPtr particle, Direction, bool massless)
	Calculate the wavefunctions.

static void	calculateWaveFunctions (vector< Rank3TensorWaveFunction > &waves, RhoDMatrix &rho, tPPtr particle, Direction, bool massless)
	Calculate the wavefunctions.

static void	constructSpinInfo (const vector< LorentzRank3Tensor< double > > &waves, tPPtr part, Direction dir, bool time, bool massless)
	Construct the SpinInfo object.

static void	constructSpinInfo (const vector< Rank3TensorWaveFunction > &waves, tPPtr part, Direction dir, bool time, bool massless)
	Construct the SpinInfo object.

void	calculateWaveFunction (unsigned int ihel)
	Calculate the wavefunction.

Additional Inherited Members
Public Member Functions inherited from ThePEG::Helicity::WaveFunctionBase
	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 inherited from ThePEG::Helicity::WaveFunctionBase
void	transformMomentum (const LorentzRotation &r)
	Perform the Lorentz transformation of the wave function.

Detailed Description

Author: Peter Richardson

The Rank3TensorWaveFunction class is designed to store the wavefunction of a tensor in a form suitable for use in helicity amplitude calculations of the matrix element using a similar philosophy to the FORTRAN HELAS code.

In addition to storing the tensor using the LorentzRank3Tensor class it inherits from the WaveFunctionBase class to provide storage of the momentum and ParticleData for the tensor particle.

This class also contains the code which does the actually calculation of the tensor wavefunction.

N.B. In our convention 0 is the \(-3\) helicity state, 1 is the \(-2\) helicity state, 2 is the \(-1\) helicity state, 3 is the \( 0\) helicity state, 4 is the \(+1\) helicity state and 5 is the \(+2\) helicity state. 6 is the \(+3\) helicity state.

See also: WaveFunctionBase; LorentzRank3Tensor; VectorWaveFunction

Definition at line 52 of file Rank3TensorWaveFunction.h.

Constructor & Destructor Documentation

◆ Rank3TensorWaveFunction() [1/5]

ThePEG::Helicity::Rank3TensorWaveFunction::Rank3TensorWaveFunction	(	const Lorentz5Momentum &	p,
		tcPDPtr	part,
		const LorentzRank3Tensor< double > &	wave,
		Direction	dir = `intermediate`
	)

inline

Constructor, set the momentum and Wavefunction, the direction can also be specified.

Parameters

p	The momentum.
part	The ParticleData pointer
wave	The wavefunction, i.e. the polarization vector.
dir	The direction of the particle.

Definition at line 66 of file Rank3TensorWaveFunction.h.

References ThePEG::Helicity::WaveFunctionBase::iSpin(), and ThePEG::PDT::Spin3.

◆ Rank3TensorWaveFunction() [2/5]

ThePEG::Helicity::Rank3TensorWaveFunction::Rank3TensorWaveFunction	(	const Lorentz5Momentum &	p,
		tcPDPtr	part,
		unsigned int	ihel,
		Direction	dir
	)

inline

Constructor, set the momentum, helicity, direction and optionally the phase.

Parameters

p	The momentum.
part	The ParticleData pointer
ihel	The helicity (0,1,2,3,4 as described above.)
dir	The direction.
phase	The phase choice.

Definition at line 81 of file Rank3TensorWaveFunction.h.

References calculateWaveFunction(), ThePEG::Helicity::WaveFunctionBase::iSpin(), and ThePEG::PDT::Spin3.

◆ Rank3TensorWaveFunction() [3/5]

ThePEG::Helicity::Rank3TensorWaveFunction::Rank3TensorWaveFunction	(	const Lorentz5Momentum &	p,
		tcPDPtr	part,
		Direction	dir
	)

inline

Constructor, set the 5-momentum and direction, zero the wavefunction.

Parameters

p	The momentum.
part	The ParticleData pointer.
dir	The direction.

Definition at line 94 of file Rank3TensorWaveFunction.h.

References ThePEG::Helicity::WaveFunctionBase::iSpin(), and ThePEG::PDT::Spin3.

◆ Rank3TensorWaveFunction() [4/5]

ThePEG::Helicity::Rank3TensorWaveFunction::Rank3TensorWaveFunction ( )

inline

Default constructor.

Definition at line 103 of file Rank3TensorWaveFunction.h.

◆ Rank3TensorWaveFunction() [5/5]

ThePEG::Helicity::Rank3TensorWaveFunction::Rank3TensorWaveFunction	(	vector< Rank3TensorWaveFunction > &	wave,
		tPPtr	part,
		Direction	dir,
		bool	time,
		bool	massless,
		bool	= `true`
	)

inline

Special for spin correlations.

Todo:: make static?

Definition at line 108 of file Rank3TensorWaveFunction.h.

References calculateWaveFunctions(), constructSpinInfo(), and wave().

Member Function Documentation

◆ calculateWaveFunction()

void ThePEG::Helicity::Rank3TensorWaveFunction::calculateWaveFunction ( unsigned int ihel )

private

Calculate the wavefunction.

Parameters

ihel	The helicity (0,1,2,3,4 as described above.)

Referenced by Rank3TensorWaveFunction(), and reset().

◆ operator()() [1/2]

Complex & ThePEG::Helicity::Rank3TensorWaveFunction::operator()	(	int	i,
		int	j,
		int	k
	)

inline

Set components by index.

Definition at line 130 of file Rank3TensorWaveFunction.h.

References _wf.

◆ operator()() [2/2]

Complex ThePEG::Helicity::Rank3TensorWaveFunction::operator()	(	int	i,
		int	j,
		int	k
	)		const

inline

Access to the wavefunction and its components.

Subscript operator for the wavefunction.

Definition at line 123 of file Rank3TensorWaveFunction.h.

References _wf.

◆ reset()

void ThePEG::Helicity::Rank3TensorWaveFunction::reset ( unsigned int ihel )

inline

Reset functions.

Reset helicity (recalculate the tensor ).

Parameters

ihel	The new helicity (0,1,2,3,4 as described above.)

Definition at line 149 of file Rank3TensorWaveFunction.h.

References calculateWaveFunction().

◆ transform()

void ThePEG::Helicity::Rank3TensorWaveFunction::transform ( const LorentzRotation & r )

inline

Perform the Lorentz transformation of the wave function.

Definition at line 159 of file Rank3TensorWaveFunction.h.

References _wf, ThePEG::Helicity::LorentzRank3Tensor< Value >::transform(), and ThePEG::Helicity::WaveFunctionBase::transformMomentum().

◆ wave()

const LorentzRank3Tensor< double > & ThePEG::Helicity::Rank3TensorWaveFunction::wave ( ) const

inline

Return wavefunction as polarization rank-3 tensor .

Definition at line 137 of file Rank3TensorWaveFunction.h.

References _wf.

Referenced by Rank3TensorWaveFunction().

Member Data Documentation

◆ _wf

LorentzRank3Tensor<double> ThePEG::Helicity::Rank3TensorWaveFunction::_wf

private

Storage of the wavefunction as a Lorentz Rank3Tensor.

Definition at line 217 of file Rank3TensorWaveFunction.h.

Referenced by operator()(), transform(), and wave().

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

Rank3TensorWaveFunction.h

Standard constructors and destructors.

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Rank3TensorWaveFunction() [1/5]

◆ Rank3TensorWaveFunction() [2/5]

◆ Rank3TensorWaveFunction() [3/5]

◆ Rank3TensorWaveFunction() [4/5]

◆ Rank3TensorWaveFunction() [5/5]

Member Function Documentation

◆ calculateWaveFunction()

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ reset()

◆ transform()

◆ wave()

Member Data Documentation

◆ _wf