ATLAS Offline Software
Variables
python.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*classic_electr_radius*classic_electr_radius
 
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 python.PhysicalConstants.alpha_rcl2 = fine_structure_const*classic_electr_radius*classic_electr_radius

Definition at line 108 of file PhysicalConstants.py.

◆ amu

float python.PhysicalConstants.amu = amu_c2/c_squared

Definition at line 90 of file PhysicalConstants.py.

◆ amu_c2

float python.PhysicalConstants.amu_c2 = 931.49432 * MeV

Definition at line 89 of file PhysicalConstants.py.

◆ Avogadro

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

Definition at line 57 of file PhysicalConstants.py.

◆ Bohr_radius

float python.PhysicalConstants.Bohr_radius = electron_Compton_length/fine_structure_const

Definition at line 106 of file PhysicalConstants.py.

◆ c_light

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

Definition at line 63 of file PhysicalConstants.py.

◆ c_squared

float python.PhysicalConstants.c_squared = c_light * c_light

Definition at line 64 of file PhysicalConstants.py.

◆ classic_electr_radius

float python.PhysicalConstants.classic_electr_radius = elm_coupling/electron_mass_c2

Definition at line 104 of file PhysicalConstants.py.

◆ e_squared

python.PhysicalConstants.e_squared = eplus * eplus

Definition at line 80 of file PhysicalConstants.py.

◆ electron_charge

python.PhysicalConstants.electron_charge = - eplus

Definition at line 79 of file PhysicalConstants.py.

◆ electron_Compton_length

float python.PhysicalConstants.electron_Compton_length = hbarc/electron_mass_c2

Definition at line 105 of file PhysicalConstants.py.

◆ electron_mass_c2

float python.PhysicalConstants.electron_mass_c2 = 0.51099906 * MeV

Definition at line 86 of file PhysicalConstants.py.

◆ elm_coupling

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

Definition at line 102 of file PhysicalConstants.py.

◆ epsilon0

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

Definition at line 97 of file PhysicalConstants.py.

◆ fine_structure_const

float python.PhysicalConstants.fine_structure_const = elm_coupling/hbarc

Definition at line 103 of file PhysicalConstants.py.

◆ h_Planck

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

Definition at line 71 of file PhysicalConstants.py.

◆ halfpi

float python.PhysicalConstants.halfpi = pi/2

Definition at line 51 of file PhysicalConstants.py.

◆ hbar_Planck

float python.PhysicalConstants.hbar_Planck = h_Planck/twopi

Definition at line 72 of file PhysicalConstants.py.

◆ hbarc

float python.PhysicalConstants.hbarc = hbar_Planck * c_light

Definition at line 73 of file PhysicalConstants.py.

◆ hbarc_squared

float python.PhysicalConstants.hbarc_squared = hbarc * hbarc

Definition at line 74 of file PhysicalConstants.py.

◆ k_Boltzmann

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

Definition at line 114 of file PhysicalConstants.py.

◆ kGasThreshold

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

Definition at line 121 of file PhysicalConstants.py.

◆ mu0

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

Definition at line 96 of file PhysicalConstants.py.

◆ neutron_mass_c2

float python.PhysicalConstants.neutron_mass_c2 = 939.56563 * MeV

Definition at line 88 of file PhysicalConstants.py.

◆ pi

float python.PhysicalConstants.pi = 3.14159265358979323846

Definition at line 49 of file PhysicalConstants.py.

◆ pi2

float python.PhysicalConstants.pi2 = pi*pi

Definition at line 52 of file PhysicalConstants.py.

◆ proton_mass_c2

float python.PhysicalConstants.proton_mass_c2 = 938.27231 * MeV

Definition at line 87 of file PhysicalConstants.py.

◆ STP_Pressure

int python.PhysicalConstants.STP_Pressure = 1.*atmosphere

Definition at line 120 of file PhysicalConstants.py.

◆ STP_Temperature

float python.PhysicalConstants.STP_Temperature = 273.15*kelvin

Definition at line 119 of file PhysicalConstants.py.

◆ twopi

int python.PhysicalConstants.twopi = 2*pi

Definition at line 50 of file PhysicalConstants.py.

◆ twopi_mc2_rcl2

int python.PhysicalConstants.twopi_mc2_rcl2 = twopi*electron_mass_c2*classic_electr_radius*classic_electr_radius

Definition at line 110 of file PhysicalConstants.py.

◆ universe_mean_density

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

Definition at line 126 of file PhysicalConstants.py.