ActsFatras::detail::GeneralMixture Struct Reference

#include <acts/blob/sPHENIX/Fatras/include/ActsFatras/Physics/ElectroMagnetic/detail/GeneralMixture.hpp>

Public Member Functions
template<typename generator_t >
double	operator() (generator_t &generator, const Acts::MaterialSlab &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 26 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 26 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 161 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 161 of file GeneralMixture.hpp

References physmon_ckf_tracking::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 96 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 96 of file GeneralMixture.hpp

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 107 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 107 of file GeneralMixture.hpp

References Acts::UnitConstants::e.

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 128 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 128 of file GeneralMixture.hpp

References KFPMath::a, KFPMath::b, E, n, N, and rho.

Referenced by operator()().

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template<typename generator_t >

double ActsFatras::detail::GeneralMixture::operator() ( generator_t &  generator, const Acts::MaterialSlab &  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 41 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 41 of file GeneralMixture.hpp

References ActsFatras::Particle::absoluteCharge(), ActsFatras::Particle::absoluteMomentum(), ActsFatras::Particle::absolutePdg(), Acts::computeMultipleScatteringTheta0(), Acts::eElectron, gaussmix(), genMixtureScalor, getGaussian(), getGaussmix(), getSemigauss(), ActsFatras::Particle::mass(), Acts::MaterialSlab::material(), ActsFatras::Particle::qOverP(), semigauss(), ActsTests::PropagationDatasets::theta, Acts::MaterialSlab::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 KFPMath::a, KFPMath::b, and physmon_ckf_tracking::u.

Referenced by operator()().

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Member Data Documentation

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

Scale the mixture level.

Definition at line 30 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 30 of file GeneralMixture.hpp

Referenced by operator()().

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

Steering parameter.

Definition at line 28 of file GeneralMixture.hpp.

View newest version in sPHENIX GitHub at line 28 of file GeneralMixture.hpp

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

• acts/blob/sPHENIX/Fatras/include/ActsFatras/Physics/ElectroMagnetic/detail/GeneralMixture.hpp