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mp_units::codata::neutron_proton_mass_difference

Synopsis

Declared in <mp-units/systems/codata/codata2022.h>

struct neutron_proton_mass_difference final :
    named_constant<
      "neutron_proton_mass_difference", mag_ratio<230557461, 100000000> * mag_power<10, -30> * si::kilogram,
      (standard_uncertainty<mp_units::scaled_unit<
         mp_units::detail::unit_magnitude<power_v<2L, ratio{-38, 1}.num>{}, power_v<5L, ratio{-38, 1}.num>{}, 67L>{{}},
         mp_units::si::kilo_<mp_units::si::gram>>>){mag_ratio<67, 10> * mag_power<10, -37> * si::kilogram}>

Base Classes

NameDescription
named_constant<"neutron_proton_mass_difference", mag_ratio<230557461, 100000000> * mag_power<10, -30> * si::kilogram, (standard_uncertainty<mp_units::scaled_unit<mp_units::detail::unit_magnitude<power_v<2L, ratio{-38, 1}.num>{}, power_v<5L, ratio{-38, 1}.num>{}, 67L>{{}}, mp_units::si::kilo_<mp_units::si::gram>>>){mag_ratio<67, 10> * mag_power<10, -37> * si::kilogram}>