Measured g-factor Values
| Elementary Particle | g-factor | Uncertainty |
|---|---|---|
| Electron | −2.0023193043622 | 0.0000000000015 |
| Neutron | −3.82608545 | 0.00000090 |
| Proton | 5.585694713 | 0.000000046 |
| Muon | −2.0023318414 | 0.0000000012 |
The electron g-factor is one of the most precisely measured values in physics, with its uncertainty beginning at the twelfth decimal place.
Read more about this topic: G-factor (physics)
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