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Reference Guide
TGeant4PhysicalConstants.h File Reference
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Namespaces

 TGeant4Unit
 

Variables

static constexpr double TGeant4Unit::alpha_rcl2 = fine_structure_const * classic_electr_radius * classic_electr_radius
 
static constexpr double TGeant4Unit::amu = amu_c2 / c_squared
 
static constexpr double TGeant4Unit::amu_c2 = 931.494028 * MeV
 
static constexpr double TGeant4Unit::Avogadro = 6.02214179e+23 / mole
 
static constexpr double TGeant4Unit::Bohr_radius = electron_Compton_length / fine_structure_const
 
static constexpr double TGeant4Unit::c_light = 2.99792458e+8 * m / s
 
static constexpr double TGeant4Unit::c_squared = c_light * c_light
 
static constexpr double TGeant4Unit::classic_electr_radius = elm_coupling / electron_mass_c2
 
static constexpr double TGeant4Unit::e_squared = eplus * eplus
 
static constexpr double TGeant4Unit::electron_charge = -eplus
 
static constexpr double TGeant4Unit::electron_Compton_length = hbarc / electron_mass_c2
 
static constexpr double TGeant4Unit::electron_mass_c2 = 0.510998910 * MeV
 
static constexpr double TGeant4Unit::elm_coupling = e_squared / (4 * pi * epsilon0)
 
static constexpr double TGeant4Unit::epsilon0 = 1. / (c_squared * mu0)
 
static constexpr double TGeant4Unit::fine_structure_const = elm_coupling / hbarc
 
static constexpr double TGeant4Unit::h_Planck = 6.62606896e-34 * joule * s
 
static constexpr double TGeant4Unit::hbar_Planck = h_Planck / twopi
 
static constexpr double TGeant4Unit::hbarc = hbar_Planck * c_light
 
static constexpr double TGeant4Unit::hbarc_squared = hbarc * hbarc
 
static constexpr double TGeant4Unit::k_Boltzmann = 8.617343e-11 * MeV / kelvin
 
static constexpr double TGeant4Unit::kGasThreshold = 10. * mg / cm3
 
static constexpr double TGeant4Unit::mu0 = 4 * pi * 1.e-7 * henry / m
 
static constexpr double TGeant4Unit::neutron_mass_c2 = 939.56536 * MeV
 
static constexpr double TGeant4Unit::proton_mass_c2 = 938.272013 * MeV
 
static constexpr double TGeant4Unit::STP_Pressure = 1. * atmosphere
 
static constexpr double TGeant4Unit::STP_Temperature = 273.15 * kelvin
 
static constexpr double TGeant4Unit::twopi_mc2_rcl2 = twopi * electron_mass_c2 * classic_electr_radius * classic_electr_radius
 
static constexpr double TGeant4Unit::universe_mean_density = 1.e-25 * g / cm3