| The Gaudi Framework v32r1 (f65d50dc)

Variables
GaudiKernel.PhysicalConstants Namespace Reference

## Variables
float | pi = 3.14159265358979323846
int | twopi = 2 * pi
float | halfpi = pi / 2
float | pi2 = pi * pi
float | Avogadro = 6.0221367e+23 / mole
float | c_light = 2.99792458e+8 * m / s
float | c_squared = c_light * c_light
float | h_Planck = 6.6260755e-34 * joule * s
float | hbar_Planck = h_Planck / twopi
float | hbarc = hbar_Planck * c_light
float | hbarc_squared = hbarc * hbarc
| electron_charge = -eplus
| e_squared = eplus * eplus
float | electron_mass_c2 = 0.51099906 * MeV
float | proton_mass_c2 = 938.27231 * MeV
float | neutron_mass_c2 = 939.56563 * MeV
float | amu_c2 = 931.49432 * MeV
float | amu = amu_c2 / c_squared
int | mu0 = 4 * pi * 1.e-7 * henry / m
int | epsilon0 = 1. / (c_squared * mu0)
| elm_coupling = e_squared / (4 * pi * epsilon0)
float | fine_structure_const = elm_coupling / hbarc
float | classic_electr_radius = elm_coupling / electron_mass_c2
float | electron_Compton_length = hbarc / electron_mass_c2
float | Bohr_radius = electron_Compton_length / fine_structure_const
float | alpha_rcl2 = fine_structure_const * classic_electr_radius * classic_electr_radius
int | twopi_mc2_rcl2 = twopi * electron_mass_c2 * \
float | k_Boltzmann = 8.617385e-11 * MeV / kelvin
float | STP_Temperature = 273.15 * kelvin
int | STP_Pressure = 1. * atmosphere
int | kGasThreshold = 10. * mg / cm3
int | universe_mean_density = 1.e-25 * g / cm3

## Variable Documentation

## ◆ alpha_rcl2

float GaudiKernel.PhysicalConstants.alpha_rcl2 = fine_structure_const * classic_electr_radius * classic_electr_radius

Definition at line 106 of file PhysicalConstants.py.

## ◆ amu

float GaudiKernel.PhysicalConstants.amu = amu_c2 / c_squared

Definition at line 88 of file PhysicalConstants.py.

## ◆ amu_c2

float GaudiKernel.PhysicalConstants.amu_c2 = 931.49432 * MeV

Definition at line 87 of file PhysicalConstants.py.

## ◆ Avogadro

float GaudiKernel.PhysicalConstants.Avogadro = 6.0221367e+23 / mole

Definition at line 55 of file PhysicalConstants.py.

## ◆ Bohr_radius

float GaudiKernel.PhysicalConstants.Bohr_radius = electron_Compton_length / fine_structure_const

Definition at line 104 of file PhysicalConstants.py.

## ◆ c_light

float GaudiKernel.PhysicalConstants.c_light = 2.99792458e+8 * m / s

Definition at line 61 of file PhysicalConstants.py.

## ◆ c_squared

float GaudiKernel.PhysicalConstants.c_squared = c_light * c_light

Definition at line 62 of file PhysicalConstants.py.

## ◆ classic_electr_radius

float GaudiKernel.PhysicalConstants.classic_electr_radius = elm_coupling / electron_mass_c2

Definition at line 102 of file PhysicalConstants.py.

## ◆ e_squared

GaudiKernel.PhysicalConstants.e_squared = eplus * eplus

Definition at line 78 of file PhysicalConstants.py.

## ◆ electron_charge

GaudiKernel.PhysicalConstants.electron_charge = -eplus

Definition at line 77 of file PhysicalConstants.py.

## ◆ electron_Compton_length

float GaudiKernel.PhysicalConstants.electron_Compton_length = hbarc / electron_mass_c2

Definition at line 103 of file PhysicalConstants.py.

## ◆ electron_mass_c2

float GaudiKernel.PhysicalConstants.electron_mass_c2 = 0.51099906 * MeV

Definition at line 84 of file PhysicalConstants.py.

## ◆ elm_coupling

GaudiKernel.PhysicalConstants.elm_coupling = e_squared / (4 * pi * epsilon0)

Definition at line 100 of file PhysicalConstants.py.

## ◆ epsilon0

int GaudiKernel.PhysicalConstants.epsilon0 = 1. / (c_squared * mu0)

Definition at line 95 of file PhysicalConstants.py.

## ◆ fine_structure_const

float GaudiKernel.PhysicalConstants.fine_structure_const = elm_coupling / hbarc

Definition at line 101 of file PhysicalConstants.py.

## ◆ h_Planck

float GaudiKernel.PhysicalConstants.h_Planck = 6.6260755e-34 * joule * s

Definition at line 69 of file PhysicalConstants.py.

## ◆ halfpi

float GaudiKernel.PhysicalConstants.halfpi = pi / 2

Definition at line 49 of file PhysicalConstants.py.

## ◆ hbar_Planck

float GaudiKernel.PhysicalConstants.hbar_Planck = h_Planck / twopi

Definition at line 70 of file PhysicalConstants.py.

## ◆ hbarc

float GaudiKernel.PhysicalConstants.hbarc = hbar_Planck * c_light

Definition at line 71 of file PhysicalConstants.py.

## ◆ hbarc_squared

float GaudiKernel.PhysicalConstants.hbarc_squared = hbarc * hbarc

Definition at line 72 of file PhysicalConstants.py.

## ◆ k_Boltzmann

float GaudiKernel.PhysicalConstants.k_Boltzmann = 8.617385e-11 * MeV / kelvin

Definition at line 113 of file PhysicalConstants.py.

## ◆ kGasThreshold

int GaudiKernel.PhysicalConstants.kGasThreshold = 10. * mg / cm3

Definition at line 120 of file PhysicalConstants.py.

## ◆ mu0

int GaudiKernel.PhysicalConstants.mu0 = 4 * pi * 1.e-7 * henry / m

Definition at line 94 of file PhysicalConstants.py.

## ◆ neutron_mass_c2

float GaudiKernel.PhysicalConstants.neutron_mass_c2 = 939.56563 * MeV

Definition at line 86 of file PhysicalConstants.py.

## ◆ pi

float GaudiKernel.PhysicalConstants.pi = 3.14159265358979323846

Definition at line 47 of file PhysicalConstants.py.

## ◆ pi2

float GaudiKernel.PhysicalConstants.pi2 = pi * pi

Definition at line 50 of file PhysicalConstants.py.

## ◆ proton_mass_c2

float GaudiKernel.PhysicalConstants.proton_mass_c2 = 938.27231 * MeV

Definition at line 85 of file PhysicalConstants.py.

## ◆ STP_Pressure

int GaudiKernel.PhysicalConstants.STP_Pressure = 1. * atmosphere

Definition at line 119 of file PhysicalConstants.py.

## ◆ STP_Temperature

float GaudiKernel.PhysicalConstants.STP_Temperature = 273.15 * kelvin

Definition at line 118 of file PhysicalConstants.py.

## ◆ twopi

int GaudiKernel.PhysicalConstants.twopi = 2 * pi

Definition at line 48 of file PhysicalConstants.py.

## ◆ twopi_mc2_rcl2

int GaudiKernel.PhysicalConstants.twopi_mc2_rcl2 = twopi * electron_mass_c2 * \

Definition at line 108 of file PhysicalConstants.py.

## ◆ universe_mean_density

int GaudiKernel.PhysicalConstants.universe_mean_density = 1.e-25 * g / cm3

Definition at line 125 of file PhysicalConstants.py.