#include <acts/blob/master/Fatras/include/ActsFatras/Physics/Scattering/GeneralMixture.hpp>

Public Member Functions
template<typename generator_t >
double	operator() (generator_t &generator, const Acts::MaterialProperties &slab, Particle &particle) const

std::array< double, 4 >	getGaussian (double beta, double p, double tInX0, double scale) const

std::array< double, 4 >	getGaussmix (double beta, double p, double tInX0, double Z, double scale) const

std::array< double, 6 >	getSemigauss (double beta, double p, double tInX0, double Z, double scale) const

template<typename generator_t >
double	gaussmix (generator_t &generator, const std::array< double, 4 > &scattering_params) const
	Retrieve the gaussian mixture.

template<typename generator_t >
double	semigauss (generator_t &generator, const std::array< double, 6 > &scattering_params) const
	Retrieve the semi-gaussian mixture.

Public Attributes
bool	log_include = true
	Steering parameter.

double	genMixtureScalor = 1.
	Scale the mixture level.

Detailed Description

Generate scattering angles using a general mixture model.

Emulates core and tail scattering as described in

General mixture model Fruehwirth, M. Liendl.
Comp. Phys. Comm. 141 (2001) 230-246

Definition at line 27 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 27 of file GeneralMixture.hpp

Member Function Documentation

template<typename generator_t >

double ActsFatras::detail::GeneralMixture::gaussmix	(	generator_t &	generator,
		const std::array< double, 4 > &	scattering_params
	)		const

inline

Retrieve the gaussian mixture.

Template Parameters

generator_t Type of the generator

Parameters

udist	The uniform distribution handed over by the call operator
scattering_params	the tuned parameters for the generation

Returns: a double value that represents the gaussian mixture

Definition at line 162 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 162 of file GeneralMixture.hpp

References Acts::UnitConstants::u.

Referenced by operator()().

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std::array<double, 4> ActsFatras::detail::GeneralMixture::getGaussian	(	double	beta,
		double	p,
		double	tInX0,
		double	scale
	)		const

inline

Definition at line 98 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 98 of file GeneralMixture.hpp

References scale.

Referenced by operator()().

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std::array<double, 4> ActsFatras::detail::GeneralMixture::getGaussmix	(	double	beta,
		double	p,
		double	tInX0,
		double	Z,
		double	scale
	)		const

inline

Definition at line 109 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 109 of file GeneralMixture.hpp

References d1, d2, e, and scale.

Referenced by operator()().

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std::array<double, 6> ActsFatras::detail::GeneralMixture::getSemigauss	(	double	beta,
		double	p,
		double	tInX0,
		double	Z,
		double	scale
	)		const

inline

Definition at line 129 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 129 of file GeneralMixture.hpp

References a, b, E, n, N, and scale.

Referenced by operator()().

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template<typename generator_t >

double ActsFatras::detail::GeneralMixture::operator()	(	generator_t &	generator,
		const Acts::MaterialProperties &	slab,
		Particle &	particle
	)		const

inline

Generate a single 3D scattering angle.

Parameters

[in]	generator	is the random number generator
[in]	slab	defines the passed material
[in,out]	particle	is the particle being scattered

Returns: a 3d scattering angle

Template Parameters

generator_t is a RandomNumberEngine

Definition at line 42 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 42 of file GeneralMixture.hpp

References kdfinder::abs(), ActsFatras::Particle::absMomentum(), ActsFatras::Particle::charge(), Acts::computeMultipleScatteringTheta0(), Acts::eElectron, gaussmix(), genMixtureScalor, getGaussian(), getGaussmix(), getSemigauss(), ActsFatras::Particle::mass(), Acts::MaterialProperties::material(), ActsFatras::Particle::pdg(), semigauss(), theta(), Acts::MaterialProperties::thicknessInX0(), and Acts::Material::Z().

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template<typename generator_t >

double ActsFatras::detail::GeneralMixture::semigauss	(	generator_t &	generator,
		const std::array< double, 6 > &	scattering_params
	)		const

inline

Retrieve the semi-gaussian mixture.

Template Parameters

generator_t Type of the generator

Parameters

udist	The uniform distribution handed over by the call operator
scattering_params	the tuned parameters for the generation

Returns: a double value that represents the gaussian mixture

Definition at line 186 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 186 of file GeneralMixture.hpp

References a, b, and Acts::UnitConstants::u.

Referenced by operator()().

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Member Data Documentation

double ActsFatras::detail::GeneralMixture::genMixtureScalor = 1.

Scale the mixture level.

Definition at line 31 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 31 of file GeneralMixture.hpp

Referenced by operator()().

bool ActsFatras::detail::GeneralMixture::log_include = true

Steering parameter.

Definition at line 29 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 29 of file GeneralMixture.hpp

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

acts/blob/master/Fatras/include/ActsFatras/Physics/Scattering/GeneralMixture.hpp

Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation

Member Data Documentation