View Single Post
  #35  
Old 30-09-2010, 02:06 PM
sjastro's Avatar
sjastro
Registered User

sjastro is offline
 
Join Date: Jun 2007
Posts: 2,926
Quote:
Originally Posted by CraigS View Post
Is there a degree of conventionality in this ?
I guess if one applies tests for all of (1) to (4), then maybe there's no definitional issues (?)

… interesting ...

Cheers & thanks for a great answer, Steven .. very clear ..
The conventionality in this case groups matter/antimatter into symmetrical pairings.

For example.

Protons/Antiprotons:- (1) and (2)
Neutons/Antineutrons:- (2)
Neutrinos/Antineutrinos:- (4)

For (3) If matter has +1 (or -1) parity then the corresponding antimatter has -1 (or +1) parity.

Regards

Steven
Reply With Quote