pleiades.core.constants module

Physical constants with validation.

class pleiades.core.constants.PhysicalConstants(*, neutron_mass_amu: float = 1.008664915, proton_mass_amu: float = 1.007276466, electron_mass_amu: float = 0.000548579909, speed_of_light: float = 299792458.0, planck_constant: float = 4.135667696e-15, boltzmann_constant: float = 8.617333262e-05, elementary_charge: float = 1.602176634e-19, avogadro_number: float = 6.02214076e+23, barn_to_cm2: float = 1e-24, amu_to_kg: float = 1.660539067e-27)

Bases: BaseModel

Physical constants used in nuclear calculations.

model_config = {'frozen': True}

Configuration for the model, should be a dictionary conforming to [ConfigDict][pydantic.config.ConfigDict].

neutron_mass_amu: float

proton_mass_amu: float

electron_mass_amu: float

speed_of_light: float

planck_constant: float

boltzmann_constant: float

elementary_charge: float

avogadro_number: float

barn_to_cm2: float

amu_to_kg: float

property neutron_mass_kg: float

Neutron mass in kilograms.

property atomic_mass_unit_eV: float

One atomic mass unit in eV/c².