#include <geant4/tree/geant4-10.6-release/source/processes/hadronic/models/inclxx/incl_physics/include/G4INCLCoulombNonRelativistic.hh>

Inheritance diagram for G4INCL::CoulombNonRelativistic:

Collaboration diagram for G4INCL::CoulombNonRelativistic:

Public Member Functions
	CoulombNonRelativistic ()

virtual	~CoulombNonRelativistic ()

ParticleEntryAvatar *	bringToSurface (Particle const p, Nucleus const n) const
	Modify the momentum of the particle and position it on the surface of the nucleus.

IAvatarList	bringToSurface (Cluster const c, Nucleus const n) const
	Modify the momentum of the incoming cluster and position it on the surface of the nucleus.

void	distortOut (ParticleList const &pL, Nucleus const *const n) const
	Modify the momenta of the outgoing particles.

G4double	maxImpactParameter (ParticleSpecies const &p, const G4double kinE, Nucleus const *const n) const
	Return the maximum impact parameter for Coulomb-distorted trajectories.

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

virtual	~ICoulomb ()

Private Member Functions
G4double	minimumDistance (ParticleSpecies const &p, const G4double kineticEnergy, Nucleus const *const n) const
	Return the minimum distance of approach in a head-on collision (b=0).

G4double	minimumDistance (Particle const const p, Nucleus const const n) const
	Return the minimum distance of approach in a head-on collision (b=0).

G4bool	coulombDeviation (Particle const p, Nucleus const const n) const
	Perform Coulomb deviation.

G4double	getCoulombRadius (ParticleSpecies const &p, Nucleus const *const n) const
	Get the Coulomb radius for a given particle.

Private Attributes
CoulombNone	theCoulombNoneSlave
	Internal CoulombNone slave to generate the avatars.

Detailed Description

Definition at line 56 of file G4INCLCoulombNonRelativistic.hh.

View newest version in sPHENIX GitHub at line 56 of file G4INCLCoulombNonRelativistic.hh

Constructor & Destructor Documentation

G4INCL::CoulombNonRelativistic::CoulombNonRelativistic ( )

inline

Definition at line 58 of file G4INCLCoulombNonRelativistic.hh.

View newest version in sPHENIX GitHub at line 58 of file G4INCLCoulombNonRelativistic.hh

virtual G4INCL::CoulombNonRelativistic::~CoulombNonRelativistic ( )

inlinevirtual

Definition at line 59 of file G4INCLCoulombNonRelativistic.hh.

View newest version in sPHENIX GitHub at line 59 of file G4INCLCoulombNonRelativistic.hh

Member Function Documentation

ParticleEntryAvatar * G4INCL::CoulombNonRelativistic::bringToSurface	(	Particle *const	p,
		Nucleus *const	n
	)		const

virtual

Modify the momentum of the particle and position it on the surface of the nucleus.

This method performs non-relativistic distortion.

Parameters

p	incoming particle
n	distorting nucleus

Implements G4INCL::ICoulomb.

Definition at line 50 of file G4INCLCoulombNonRelativistic.cc.

View newest version in sPHENIX GitHub at line 50 of file G4INCLCoulombNonRelativistic.cc

References G4INCL::CoulombNone::bringToSurface(), coulombDeviation(), G4INCL::Particle::getZ(), and theCoulombNoneSlave.

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IAvatarList G4INCL::CoulombNonRelativistic::bringToSurface	(	Cluster *const	c,
		Nucleus *const	n
	)		const

virtual

Modify the momentum of the incoming cluster and position it on the surface of the nucleus.

This method performs non-relativistic distortion. The momenta of the particles that compose the cluster are also distorted.

Parameters

c	incoming cluster
n	distorting nucleus

Implements G4INCL::ICoulomb.

Definition at line 63 of file G4INCLCoulombNonRelativistic.cc.

View newest version in sPHENIX GitHub at line 63 of file G4INCLCoulombNonRelativistic.cc

References G4INCL::CoulombNone::bringToSurface(), coulombDeviation(), and theCoulombNoneSlave.

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G4bool G4INCL::CoulombNonRelativistic::coulombDeviation	(	Particle *const	p,
		Nucleus const *const	n
	)		const

private

Perform Coulomb deviation.

Modifies the entrance angle of the particle and its impact parameter. Can be applied to Particles and Clusters.

The trajectory for an asymptotic impact parameter $b$ is parametrised as follows:

$r(\theta) = \frac{(1-e^2)r_0/2}{1-e \sin(\theta-\theta_R/2)},$

here $e$ is the hyperbola eccentricity:

$e = \sqrt{1+4b^2/r_0^2};$

$\theta_R$ is the Rutherford scattering angle:

$\theta_R = \pi - 2\arctan\left(\frac{2b}{r_0}\right)$

$\theta$ ranges from $\pi$ (initial state) to $\theta_R$ (scattered particle) and $r_0$ is the minimum distance of approach in a head-on collision (see the minimumDistance() method).

Parameters

p	pointer to the Particle
n	pointer to the Nucleus

Returns: false if below the barrier

Definition at line 137 of file G4INCLCoulombNonRelativistic.cc.

View newest version in sPHENIX GitHub at line 137 of file G4INCLCoulombNonRelativistic.cc

References alpha, G4INCL::Math::arcCos(), E, getCoulombRadius(), G4INCL::Particle::getLongitudinalPosition(), G4INCL::Particle::getMomentum(), G4INCL::Particle::getSpecies(), G4INCL::Particle::getTransversePosition(), G4INCL::ThreeVector::mag(), G4INCL::ThreeVector::mag2(), minimumDistance(), momentum, n, G4INCL::Math::pi, G4INCL::Math::piOverTwo, radius, G4INCL::Particle::rotatePositionAndMomentum(), G4INCL::Particle::setPosition(), G4INCL::Math::sign(), G4INCL::Math::twoPi, and G4INCL::ThreeVector::vector().

Referenced by bringToSurface().

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void G4INCL::CoulombNonRelativistic::distortOut	(	ParticleList const &	pL,
		Nucleus const *const	n
	)		const

virtual

Modify the momenta of the outgoing particles.

This method performs non-relativistic distortion.

Parameters

pL	list of outgoing particles
n	distorting nucleus

Implements G4INCL::ICoulomb.

Definition at line 78 of file G4INCLCoulombNonRelativistic.cc.

View newest version in sPHENIX GitHub at line 78 of file G4INCLCoulombNonRelativistic.cc

References G4INCL::Math::arcCos(), c1, c2, G4INCL::ThreeVector::dot(), e, G4INCL::PhysicalConstants::eSquared, Acts::VectorHelpers::eta(), G4INCL::Nucleus::getDensity(), G4INCL::NuclearDensity::getTransmissionRadius(), G4INCL::Particle::getZ(), G4INCL::ThreeVector::mag(), momentum, particle, G4INCL::Math::piOverTwo, r, and Z.

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G4double G4INCL::CoulombNonRelativistic::getCoulombRadius	(	ParticleSpecies const &	p,
		Nucleus const *const	n
	)		const

private

Get the Coulomb radius for a given particle.

That's the radius of the sphere that the Coulomb trajectory of the incoming particle should intersect. The intersection point is used to determine the effective impact parameter of the trajectory and the new entrance angle.

If the particle is not a Cluster, the Coulomb radius reduces to the surface radius. We use a parametrisation for d, t, He3 and alphas. For heavier clusters we fall back to the surface radius.

Parameters

p	the particle species
n	the deflecting nucleus

Returns: Coulomb radius

Definition at line 196 of file G4INCLCoulombNonRelativistic.cc.

View newest version in sPHENIX GitHub at line 196 of file G4INCLCoulombNonRelativistic.cc

References G4INCL::Composite, G4INCL::PhysicalConstants::eSquared, G4INCL::Particle::getA(), G4INCL::ParticleTable::getLargestNuclearRadius(), G4INCL::ParticleTable::getShortName(), G4INCL::Nucleus::getUniverseRadius(), G4INCL::Particle::getZ(), INCL_DEBUG, INCL_ERROR, G4INCL::Math::pow13(), G4INCL::Math::pow23(), radius, G4INCL::ParticleSpecies::theA, G4INCL::ParticleSpecies::theType, and G4INCL::ParticleSpecies::theZ.

Referenced by coulombDeviation().

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G4double G4INCL::CoulombNonRelativistic::maxImpactParameter	(	ParticleSpecies const &	p,
		const G4double	kinE,
		Nucleus const *const	n
	)		const

virtual

Return the maximum impact parameter for Coulomb-distorted trajectories.

Implements G4INCL::ICoulomb.

Definition at line 124 of file G4INCLCoulombNonRelativistic.cc.

View newest version in sPHENIX GitHub at line 124 of file G4INCLCoulombNonRelativistic.cc

References G4INCL::Composite, G4INCL::ParticleTable::getLargestNuclearRadius(), G4INCL::Nucleus::getUniverseRadius(), minimumDistance(), G4INCL::ParticleSpecies::theA, G4INCL::ParticleSpecies::theType, and G4INCL::ParticleSpecies::theZ.

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G4double G4INCL::CoulombNonRelativistic::minimumDistance	(	ParticleSpecies const &	p,
		const G4double	kineticEnergy,
		Nucleus const *const	n
	)		const

inlineprivate

Return the minimum distance of approach in a head-on collision (b=0).

Definition at line 98 of file G4INCLCoulombNonRelativistic.hh.

View newest version in sPHENIX GitHub at line 98 of file G4INCLCoulombNonRelativistic.hh

References G4INCL::PhysicalConstants::eSquared, G4INCL::Cluster::getTableMass(), G4INCL::ParticleTable::getTableSpeciesMass(), G4INCL::Particle::getZ(), INCL_DEBUG, and G4INCL::ParticleSpecies::theZ.

Referenced by coulombDeviation(), maxImpactParameter(), and minimumDistance().

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G4double G4INCL::CoulombNonRelativistic::minimumDistance	(	Particle const *const	p,
		Nucleus const *const	n
	)		const

inlineprivate

Return the minimum distance of approach in a head-on collision (b=0).

Definition at line 110 of file G4INCLCoulombNonRelativistic.hh.

View newest version in sPHENIX GitHub at line 110 of file G4INCLCoulombNonRelativistic.hh

References G4INCL::Particle::getKineticEnergy(), G4INCL::Particle::getSpecies(), minimumDistance(), and n.

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Member Data Documentation

CoulombNone G4INCL::CoulombNonRelativistic::theCoulombNoneSlave

private

Internal CoulombNone slave to generate the avatars.

Definition at line 160 of file G4INCLCoulombNonRelativistic.hh.

View newest version in sPHENIX GitHub at line 160 of file G4INCLCoulombNonRelativistic.hh

Referenced by bringToSurface().

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/G4INCLCoulombNonRelativistic.hh
geant4/tree/geant4-10.6-release/source/processes/hadronic/models/inclxx/incl_physics/src/G4INCLCoulombNonRelativistic.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation