anti-neutrino and neutrino

A forum designed mainly for high school physics students in New South Wales, Australia.
danny0808
Posts: 6
Joined: Thu Jul 09, 2009 2:23 pm
Location: Chatswood

anti-neutrino and neutrino

Postby danny0808 » Sun Jul 12, 2009 3:24 pm

Hello,

I know its probably an easy question but whats the difference between and anti neutrino and neutrino.

I think in negative beta decay an antineutrino is produced and then in positive beta decay a neutrino is produced but I dont understand what really is the difference.

Thanks!

User avatar
joe
Posts: 745
Joined: Fri Aug 29, 2003 11:57 am
Location: Sydney

Postby joe » Thu Jul 16, 2009 11:54 am

I know its probably an easy question but whats the difference between and anti neutrino and neutrino.


The neutrino was originally proposed as a particle having spin, but no mass or charge, in order to conserve spin in nuclear reactions. As spin is (or was thought to be) its only property, then it is the only quantity to be reversed in its antiparticle: an antineutrino has opposite spin to a neutrino.

Recent results suggest a non-zero but very small mass for the neutrino. This complicates the picture very considerably.

Joe

danny0808
Posts: 6
Joined: Thu Jul 09, 2009 2:23 pm
Location: Chatswood

Postby danny0808 » Mon Jul 20, 2009 10:12 am

Thanks heaps for your help Joe, understand everything now.
Thanks again for your time, really appreciate it :D


Return to “High School Physics”

Who is online

Users browsing this forum: No registered users and 1 guest