Re: Neutrino & Anti-Neutrino

[John Mallinckrodt <ajmallinckro@CSUPOMONA.EDU>]

On Wed, 29 Mar 2000, Shapiro, Mark wrote:

> The difference between the neutrino and anti-neutrino is the "helicity",
> which is the projection of the particle spin on its direction of motion.  As
> I recall (I've got a 50-50 chance of being correct on this one), the
> neutrino has a left-handed helicity while the anti-neutrino has a
> right-handed helicity.

Hmm ...  If neutrinos have mass, does this mean that one person's neutrino
is another person's antineutrino and, therefore, that one person's beta-
decay is another person's beta+ decay?

John Mallinckrodt      mailto:ajm@csupomona.edu
Cal Poly Pomona          http://www.csupomona.edu/~ajm