Generate momenta using the RauboldLynch method. More...

#include <geant4/tree/geant4-10.6-release/source/processes/hadronic/models/inclxx/incl_physics/include/G4INCLPhaseSpaceRauboldLynch.hh>

Inheritance diagram for G4INCL::PhaseSpaceRauboldLynch:

Collaboration diagram for G4INCL::PhaseSpaceRauboldLynch:

Public Member Functions
	PhaseSpaceRauboldLynch ()

virtual	~PhaseSpaceRauboldLynch ()

	PhaseSpaceRauboldLynch (PhaseSpaceRauboldLynch const &other)
	Dummy copy constructor to silence Coverity warning.

PhaseSpaceRauboldLynch &	operator= (PhaseSpaceRauboldLynch const &rhs)
	Dummy assignment operator to silence Coverity warning.

void	generate (const G4double sqrtS, ParticleList &particles)
	Generate momenta according to a uniform, Lorentz-invariant phase-space model.

G4double	getMaxGeneratedWeight () const
	Return the largest generated weight.

Public Member Functions inherited from G4INCL::IPhaseSpaceGenerator
	IPhaseSpaceGenerator ()

virtual	~IPhaseSpaceGenerator ()

Private Member Functions
void	initialize (ParticleList &particles)
	Initialize internal structures (masses and sum of masses)

G4double	computeMaximumWeightNaive ()
	Compute the maximum possible weight using a naive algorithm.

G4double	computeMaximumWeightParam ()
	Compute the maximum possible weight using parametrizations.

G4double	computeWeight ()
	Compute the maximum possible weight.

void	generateEvent (ParticleList &particles)
	Generate an event.

Private Attributes
std::vector< G4double >	masses

std::vector< G4double >	sumMasses

std::vector< G4double >	rnd

std::vector< G4double >	invariantMasses

std::vector< G4double >	momentaCM

size_t	nParticles

G4double	sqrtS

G4double	availableEnergy

G4double	maxGeneratedWeight

InterpolationTable *	wMaxMassless

InterpolationTable *	wMaxCorrection

G4double	prelog [wMaxNP]
	Precalculated coefficients: -ln(n)

Static Private Attributes
static const size_t	nMasslessParticlesTable = 13

static const size_t	wMaxNE = 30

static const G4double	wMaxMasslessX [wMaxNE]

static const G4double	wMaxMasslessY [wMaxNE]

static const G4double	wMaxCorrectionX [wMaxNE]

static const G4double	wMaxCorrectionY [wMaxNE]

static const G4double	wMaxInterpolationMargin = std::log(1.5)

static const size_t	wMaxNP = 20

Detailed Description

Generate momenta using the RauboldLynch method.

Definition at line 49 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 49 of file G4INCLPhaseSpaceRauboldLynch.hh

Constructor & Destructor Documentation

G4INCL::PhaseSpaceRauboldLynch::PhaseSpaceRauboldLynch ( )

Definition at line 180 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 180 of file G4INCLPhaseSpaceRauboldLynch.cc

References prelog, wMaxCorrection, wMaxCorrectionX, wMaxCorrectionY, wMaxMassless, wMaxMasslessX, wMaxMasslessY, wMaxNE, and wMaxNP.

G4INCL::PhaseSpaceRauboldLynch::~PhaseSpaceRauboldLynch ( )

virtual

Definition at line 200 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 200 of file G4INCLPhaseSpaceRauboldLynch.cc

References wMaxCorrection, and wMaxMassless.

G4INCL::PhaseSpaceRauboldLynch::PhaseSpaceRauboldLynch ( PhaseSpaceRauboldLynch const & other )

Dummy copy constructor to silence Coverity warning.

Member Function Documentation

G4double G4INCL::PhaseSpaceRauboldLynch::computeMaximumWeightNaive ( )

private

Compute the maximum possible weight using a naive algorithm.

Definition at line 257 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 257 of file G4INCLPhaseSpaceRauboldLynch.cc

References masses, G4INCL::KinematicsUtils::momentumInCM(), nParticles, and sqrtS.

Referenced by computeMaximumWeightParam().

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G4double G4INCL::PhaseSpaceRauboldLynch::computeMaximumWeightParam ( )

private

Compute the maximum possible weight using parametrizations.

Definition at line 270 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 270 of file G4INCLPhaseSpaceRauboldLynch.cc

References availableEnergy, computeMaximumWeightNaive(), INCL_WARN, nParticles, prelog, sumMasses, wMaxInterpolationMargin, wMaxMasslessX, wMaxNE, and wMaxNP.

Referenced by generate().

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G4double G4INCL::PhaseSpaceRauboldLynch::computeWeight ( )

private

Compute the maximum possible weight.

Definition at line 292 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 292 of file G4INCLPhaseSpaceRauboldLynch.cc

References availableEnergy, invariantMasses, masses, momentaCM, G4INCL::KinematicsUtils::momentumInCM(), nParticles, rnd, G4INCL::Random::shoot(), sumMasses, and weight.

Referenced by generate().

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void G4INCL::PhaseSpaceRauboldLynch::generate	(	const G4double	sqrtS,
		ParticleList &	particles
	)

virtual

Generate momenta according to a uniform, Lorentz-invariant phase-space model.

This function will assign momenta to the particles in the list that is passed as an argument. The event is generated in the CM frame.

Parameters

sqrtS	total centre-of-mass energy of the system
particles	list of particles

Implements G4INCL::IPhaseSpaceGenerator.

Definition at line 205 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 205 of file G4INCLPhaseSpaceRauboldLynch.cc

References computeMaximumWeightParam(), computeWeight(), generateEvent(), INCL_WARN, initialize(), max, maxGeneratedWeight, nParticles, r, G4INCL::Random::shoot(), sqrtS, and weight.

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void G4INCL::PhaseSpaceRauboldLynch::generateEvent ( ParticleList & particles )

private

Generate an event.

Definition at line 319 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 319 of file G4INCLPhaseSpaceRauboldLynch.cc

References G4INCL::Particle::adjustEnergyFromMomentum(), invariantMasses, G4INCL::ThreeVector::mag2(), momentaCM, momentum, G4INCL::Random::normVector(), nParticles, and G4INCL::Particle::setMomentum().

Referenced by generate().

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G4double G4INCL::PhaseSpaceRauboldLynch::getMaxGeneratedWeight ( ) const

Return the largest generated weight.

Definition at line 345 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 345 of file G4INCLPhaseSpaceRauboldLynch.cc

References maxGeneratedWeight.

void G4INCL::PhaseSpaceRauboldLynch::initialize ( ParticleList & particles )

private

Initialize internal structures (masses and sum of masses)

Definition at line 236 of file G4INCLPhaseSpaceRauboldLynch.cc.

View newest version in sPHENIX GitHub at line 236 of file G4INCLPhaseSpaceRauboldLynch.cc

References availableEnergy, G4INCL::Particle::getMass(), invariantMasses, masses, momentaCM, nParticles, rnd, sqrtS, sumMasses, and Acts::Test::transform.

Referenced by generate().

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PhaseSpaceRauboldLynch& G4INCL::PhaseSpaceRauboldLynch::operator= ( PhaseSpaceRauboldLynch const & rhs )

Dummy assignment operator to silence Coverity warning.

Member Data Documentation

G4double G4INCL::PhaseSpaceRauboldLynch::availableEnergy

private

Definition at line 82 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 82 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam(), computeWeight(), and initialize().

std::vector<G4double> G4INCL::PhaseSpaceRauboldLynch::invariantMasses

private

Definition at line 78 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 78 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeWeight(), generateEvent(), and initialize().

std::vector<G4double> G4INCL::PhaseSpaceRauboldLynch::masses

private

Definition at line 75 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 75 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightNaive(), computeWeight(), and initialize().

G4double G4INCL::PhaseSpaceRauboldLynch::maxGeneratedWeight

private

Definition at line 83 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 83 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by generate(), and getMaxGeneratedWeight().

std::vector<G4double> G4INCL::PhaseSpaceRauboldLynch::momentaCM

private

Definition at line 79 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 79 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeWeight(), generateEvent(), and initialize().

const size_t G4INCL::PhaseSpaceRauboldLynch::nMasslessParticlesTable = 13

staticprivate

Definition at line 85 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 85 of file G4INCLPhaseSpaceRauboldLynch.hh

size_t G4INCL::PhaseSpaceRauboldLynch::nParticles

private

Definition at line 80 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 80 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightNaive(), computeMaximumWeightParam(), computeWeight(), generate(), generateEvent(), and initialize().

G4double G4INCL::PhaseSpaceRauboldLynch::prelog[wMaxNP]

private

Precalculated coefficients: -ln(n)

Definition at line 99 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 99 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam(), and PhaseSpaceRauboldLynch().

std::vector<G4double> G4INCL::PhaseSpaceRauboldLynch::rnd

private

Definition at line 77 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 77 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeWeight(), and initialize().

G4double G4INCL::PhaseSpaceRauboldLynch::sqrtS

private

Definition at line 81 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 81 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightNaive(), generate(), and initialize().

std::vector<G4double> G4INCL::PhaseSpaceRauboldLynch::sumMasses

private

Definition at line 76 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 76 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam(), computeWeight(), and initialize().

InterpolationTable* G4INCL::PhaseSpaceRauboldLynch::wMaxCorrection

private

Definition at line 94 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 94 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by PhaseSpaceRauboldLynch(), and ~PhaseSpaceRauboldLynch().

const G4double G4INCL::PhaseSpaceRauboldLynch::wMaxCorrectionX

staticprivate

Definition at line 89 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 89 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by PhaseSpaceRauboldLynch().

const G4double G4INCL::PhaseSpaceRauboldLynch::wMaxCorrectionY

staticprivate

Definition at line 90 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 90 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by PhaseSpaceRauboldLynch().

const G4double G4INCL::PhaseSpaceRauboldLynch::wMaxInterpolationMargin = std::log(1.5)

staticprivate

Definition at line 91 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 91 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam().

InterpolationTable* G4INCL::PhaseSpaceRauboldLynch::wMaxMassless

private

Definition at line 93 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 93 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by PhaseSpaceRauboldLynch(), and ~PhaseSpaceRauboldLynch().

const G4double G4INCL::PhaseSpaceRauboldLynch::wMaxMasslessX

staticprivate

Definition at line 87 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 87 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam(), and PhaseSpaceRauboldLynch().

const G4double G4INCL::PhaseSpaceRauboldLynch::wMaxMasslessY

staticprivate

Definition at line 88 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 88 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by PhaseSpaceRauboldLynch().

const size_t G4INCL::PhaseSpaceRauboldLynch::wMaxNE = 30

staticprivate

Definition at line 86 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 86 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam(), and PhaseSpaceRauboldLynch().

const size_t G4INCL::PhaseSpaceRauboldLynch::wMaxNP = 20

staticprivate

Definition at line 96 of file G4INCLPhaseSpaceRauboldLynch.hh.

View newest version in sPHENIX GitHub at line 96 of file G4INCLPhaseSpaceRauboldLynch.hh

Referenced by computeMaximumWeightParam(), and PhaseSpaceRauboldLynch().

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

geant4/tree/geant4-10.6-release/source/processes/hadronic/models/inclxx/incl_physics/include/G4INCLPhaseSpaceRauboldLynch.hh
geant4/tree/geant4-10.6-release/source/processes/hadronic/models/inclxx/incl_physics/src/G4INCLPhaseSpaceRauboldLynch.cc

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation