Do neutrinos have a magnetic moment?

Golden Boar · science forum Guru Joined: 17 May 2005 Posts: 651

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.

FrediFizzx · science forum Guru Joined: 01 May 2005 Posts: 774

"Golden Boar" <goldenboar@hotmail.com> wrote in message
news:1116379663.625376.205220@g47g2000cwa.googlegroups.com...
| 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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