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UUID | 9204d510-2972-11e4-b7aa-bc764e2038f2 |
[Particle Physics | Nuclear | Atomic] This constant represent the ratio of the mass of an electron to the mass of a proton.
In physics, the proton-to-electron mass ratio, μ or β, is simply the rest mass of the proton divided by that of the electron.
This constant is specified with a standard uncertainty (standard deviation) of: 0.000 000 0022 E-4
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