#include <BreitWheelerEngineWrapper.H>

Public Member Functions
	BreitWheelerGeneratePairs ()

	BreitWheelerGeneratePairs (const BW_pair_prod_table_view table_view)

AMREX_GPU_DEVICE AMREX_FORCE_INLINE int	operator() (const amrex::ParticleReal ux, const amrex::ParticleReal uy, const amrex::ParticleReal uz, const amrex::ParticleReal ex, const amrex::ParticleReal ey, const amrex::ParticleReal ez, const amrex::ParticleReal bx, const amrex::ParticleReal by, const amrex::ParticleReal bz, amrex::ParticleReal &e_ux, amrex::ParticleReal &e_uy, amrex::ParticleReal &e_uz, amrex::ParticleReal &p_ux, amrex::ParticleReal &p_uy, amrex::ParticleReal &p_uz, amrex::RandomEngine const &engine) const noexcept

Private Attributes
BW_pair_prod_table_view	m_table_view

Detailed Description

Functor to generate a pair via the Breit-Wheeler process

Constructor & Destructor Documentation

◆ BreitWheelerGeneratePairs() [1/2]

BreitWheelerGeneratePairs::BreitWheelerGeneratePairs ( )

inline

Default constructor: it leaves the functor in a non-initialized state.

◆ BreitWheelerGeneratePairs() [2/2]

BreitWheelerGeneratePairs::BreitWheelerGeneratePairs ( const BW_pair_prod_table_view table_view )

inline

Constructor acquires pointers to control parameters and lookup tables data. lookup_table uses non-owning vectors under the hood. So no new data allocations should be triggered on GPU

Parameters

[in] table_view a BW_pair_prod_table_view

Member Function Documentation

◆ operator()()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE int BreitWheelerGeneratePairs::operator()	(	const amrex::ParticleReal	ux,
		const amrex::ParticleReal	uy,
		const amrex::ParticleReal	uz,
		const amrex::ParticleReal	ex,
		const amrex::ParticleReal	ey,
		const amrex::ParticleReal	ez,
		const amrex::ParticleReal	bx,
		const amrex::ParticleReal	by,
		const amrex::ParticleReal	bz,
		amrex::ParticleReal &	e_ux,
		amrex::ParticleReal &	e_uy,
		amrex::ParticleReal &	e_uz,
		amrex::ParticleReal &	p_ux,
		amrex::ParticleReal &	p_uy,
		amrex::ParticleReal &	p_uz,
		amrex::RandomEngine const &	engine
	)		const

inlinenoexcept

Generates pairs according to Breit Wheeler process. It can be used on GPU. Warning: the energy of the photon must be > 2mec^2, but it is not checked in this method.

Parameters

[in]	ux,uy,uz	gamma*v components of the photon (SI units)
[in]	ex,ey,ez	electric field components (SI units)
[in]	bx,by,bz	magnetic field components (SI units)
[out]	e_ux,e_uy,e_uz	gamma*v components of generated electron (SI units)
[out]	p_ux,p_uy,p_uz	gamma*v components of generated positron (SI units)
[in]	engine	random number generator engine

Returns: a flag which is 1 if chi_photon was out of table

Member Data Documentation

◆ m_table_view

BW_pair_prod_table_view BreitWheelerGeneratePairs::m_table_view

private

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

/home/docs/checkouts/readthedocs.org/user_builds/warpx/checkouts/21.10/Source/Particles/ElementaryProcess/QEDInternals/BreitWheelerEngineWrapper.H

Public Member Functions

Private Attributes