Why neutrino may have magnetic moment

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Discussion Overview

The discussion revolves around the possibility of neutrinos possessing a magnetic moment despite being electrically neutral and not composite particles. Participants explore theoretical implications and comparisons with other particles, such as neutrons.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions how a neutrino, being massive and electrically neutral, could have a magnetic moment.
  • Another participant references a presentation found online but expresses uncertainty about its validity.
  • A participant notes that neutrinos must have spin, drawing a parallel to neutrons, which are also neutral but possess magnetic moments.
  • In response, a participant clarifies that while neutrons are neutral, they are not leptons and are composed of quarks that can have magnetic moments.
  • A participant links to another ongoing thread that may provide additional context or related discussion.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the existence of a magnetic moment for neutrinos, and multiple competing views remain regarding the implications of particle composition and properties.

Contextual Notes

There are limitations in the discussion regarding the assumptions about particle properties and the definitions of magnetic moments, particularly in relation to different types of particles.

Neitrino
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Why neutrino may have magnetic moment?
Even if it is massive... it is not composite and it is electrical neutral...
 
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Hi there,

I find your question interesting. This far from my field of expertise so I can't really say anything about this. But I went to look on the web and found this presentation (for which I don't know the validity of it):

www.cap.bnl.gov/nufact03/WG2/10june/fleming.pdf

Cheers
 
I'm not going to argue one way or the other because
I really don't know much about it but
the neutrino has to have spin doesn't it and
neutrons are neutral too yet they have magnetic moments.
 
Hi there,

granpa said:
neutrons are neutral too yet they have magnetic moments.

but neutrons are not leptons. They are composed of different quarks that can have magnetic moments, even though the total electric charge sums to zero.

Cheers
 

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