Electron-to-proton mass ratio

Created about 5 years ago, updated 5 months ago

ID27838

A⁻A⁺

## fully understood?




## https://en.wikipedia.org/wiki/Proton-to-electron_mass_ratio

- https://en.wikipedia.org/wiki/Coupling_constant

> The proton-to-electron mass ratio is primarily determined by the QCD scale.

- https://en.wikipedia.org/wiki/Hierarchy_problemCopy