Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

I think that charging symmetry assumes antiparticle presence, which has an opposite charge sign . And what symmetry assumes existence of an antiparticle at a neutral particle

share|improve this question
    
See also this question. –  Peter Shor Dec 2 '11 at 1:00
    
Would it be possible to clarify the question title? And the question body, for that matter? I don't quite understand what it's asking... –  David Z Dec 2 '11 at 9:39
add comment

1 Answer 1

Anti-matter is not just the opposite charge sign. To convert matter to anti-matter you apply the C-parity operation which change more quantum numbers than just charge. In the case of the neutrino the lepton number is switched,

share|improve this answer
1  
But Majorana neutrinos are their own antiparticles. –  Peter Shor Dec 2 '11 at 1:02
    
Further, lepton number is not conserved. –  Ron Maimon Aug 23 '12 at 5:55
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.