http://www.josefg.com/journal/2008/09/19/the-pauli-exclusion-principle/ Life, the Universe and Everything Sat, 11 Feb 2012 04:07:32 +0000 http://wordpress.org/?v=2.6 http://www.josefg.com/journal/2008/09/19/the-pauli-exclusion-principle/#comment-21335 Phil Tue, 20 Jul 2010 11:59:39 +0000 http://www.josefg.com/journal/2008/09/19/the-pauli-exclusion-principle/#comment-21335 Well, sorry, I meant lepton family number. But why are lepton (L) and baryon (B) numbers conserved in known processes, although only B-L needs to? Well, sorry, I meant lepton family number. But why are lepton (L) and baryon (B) numbers conserved in known processes, although only B-L needs to?

]]> http://www.josefg.com/journal/2008/09/19/the-pauli-exclusion-principle/#comment-21334 Phil Tue, 20 Jul 2010 11:56:26 +0000 http://www.josefg.com/journal/2008/09/19/the-pauli-exclusion-principle/#comment-21334 Yes, the Pauli principle is an ad hoc assumption and is still a great mystery. It's not the only one in the field of particle physics, though, e.g., these measured facts: - there are six quarks and six leptons, with the masses we measure - lepton number is conserved except in the case of neutrino oscillations - parity is maximally violated in weak interactions - CP violation appears in weak interactions but not in strong interactions - electric charge is quantized Yes, the Pauli principle is an ad hoc assumption and is still a great mystery. It’s not the only one in the field of particle physics, though, e.g., these measured facts:
- there are six quarks and six leptons, with the masses we measure
- lepton number is conserved except in the case of neutrino oscillations
- parity is maximally violated in weak interactions
- CP violation appears in weak interactions but not in strong interactions
- electric charge is quantized

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