The electron has a constant value of its magnetic dipole NIST. How then is "Magnetic dipole moments are neither conserved nor quantized" to be understood?
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asked Nov 26, 2022 at 17:47
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Electrons have a characteristic magnetic dipole moment. It's one of their properties. However, processes that create or destroy electrons don't conserve it. For example, in K capture (e+p->n+ν), the electron magnetic moment pretty much disappears. The magnetic moments of the other particles are tiny.
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$\begingroup$ Thank you for the answer. Did the neutrino a magnetic dipole moment at all? See the question Empirical evidence or theoretical predictions for magnetic dipole moments of neutrinos?? $\endgroup$ Commented Nov 26, 2022 at 19:01
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$\begingroup$ @HolgerFiedler it does not have one intrinsically, and even when calculated as contributions from higher diagrams is much to small to account for the difference. $\endgroup$ Commented Nov 26, 2022 at 19:33