mp_units::codata::proton_tau_mass_ratio¶
Synopsis¶
Declared in <mp-units/systems/codata/codata2022.h>
struct proton_tau_mass_ratio final :
named_constant<"proton_tau_mass_ratio", mag_ratio<528051, 1000000> * one,
(standard_uncertainty<mp_units::scaled_unit<
mp_units::detail::unit_magnitude<power_v<2L, ratio{-4, 1}.num>{}, power_v<3L, ratio{2, 1}.num>{},
power_v<5L, ratio{-6, 1}.num>{}>{{}},
mp_units::one>>){mag_ratio<36, 10> * mag_power<10, -5> * one}>