Wednesday, August 18, 2010

M Theory Lesson 343

Recall that the circulant sum form of the neutrino mixing matrix may be expressed as a product XY of two R2 factors. This product is a sum of a real 1-circulant and an imaginary 2-circulant. If we turn the ordinary matrix product into a Jordan algebra product XY (much beloved by kneemo) then the 1-circulant piece will be symmetrised, and the 2-circulant piece remains unaltered. So for the neutrino mixing matrix, the one circulant piece goes to the norm of a Koide matrix for leptons. Now the nondegenerate mass triplets just require the addition of the appropriate complex phase.

2 comments:

  1. Hmm, so it may have been more correct to start with (1,1/2) for the R2 parameters. That is, the choice where both parameters have norm less than or equal 1.

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  2. Oh, hi Carl. Yeah, actually I thought of it after a really interesting chat with kneemo about the Riofrio cosmology (and entropic mass generation). Things are slowly getting clearer, I hope.

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