Do neutrinos have a magnetic moment?

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Golden Boar - 18 May 2005 02:27 GMT

If particles with spin possess a magnetic moment, does this mean that
neutrinos have a magnetic moment?

If so, how can this be since they are electrically neutral, and
according to special relativity, a magnetic force is a manifestation of
the electrostatic force of a charge in motion.

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FrediFizzx - 18 May 2005 03:08 GMT

| If particles with spin possess a magnetic moment, does this mean that
| neutrinos have a magnetic moment?
|
| If so, how can this be since they are electrically neutral, and
| according to special relativity, a magnetic force is a manifestation of
| the electrostatic force of a charge in motion.

You can read about it at the following article from the Particle Data
Group.

http://pdg.lbl.gov/2004/listings/s001.pdf

A massless neutrino should not have a magnetic moment. However, now it
is expected that neutrinos do have mass.

FrediFizzx

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Natural Science Forum / Physics / Particle Physics / May 2005

Do neutrinos have a magnetic moment?