39 #ifndef HEP_PHYSICAL_CONSTANTS_H
40 #define HEP_PHYSICAL_CONSTANTS_H
55 static constexpr
double c_light = 2.99792458e+8 *
m/
s;
static constexpr double hbar_Planck
static constexpr double cm3
static constexpr double STP_Temperature
static constexpr double alpha_rcl2
static constexpr double g
static constexpr double twopi_mc2_rcl2
static constexpr double electron_charge
static constexpr double hbarc
static constexpr double mole
static constexpr double henry
static constexpr double epsilon0
static constexpr double universe_mean_density
static constexpr double h_Planck
static constexpr double classic_electr_radius
static constexpr double STP_Pressure
static constexpr double electron_Compton_length
static constexpr double neutron_mass_c2
static constexpr double proton_mass_c2
static constexpr double mg
static constexpr double c_squared
static constexpr double amu_c2
static constexpr double Avogadro
static constexpr double mu0
static constexpr double electron_mass_c2
static constexpr double elm_coupling
static constexpr double MeV
static constexpr double s
static constexpr double joule
static constexpr double m
static constexpr double twopi
static constexpr double c_light
static constexpr double atmosphere
static constexpr double kGasThreshold
static constexpr double k_Boltzmann
static constexpr double kelvin
static constexpr double amu
static constexpr double e_squared
static constexpr double fine_structure_const
static constexpr double hbarc_squared
static constexpr double Bohr_radius
static constexpr double pi
static constexpr double eplus