Unification and Large Atmospheric Mixing: A Case for a Noncanonical Seesaw Mechanism

B Bajc, G Senjanović, F Vissani - Physical review letters, 2003 - APS
Physical review letters, 2003APS
… We show that if the seesaw takes the noncanonical (type II) form, large atmospheric
neutrino mixing angle requires b- unification. … Our main result is the following: We show
that in the case of noncanonical seesaw, large neutrino mixing angle requires b- unification.
The rest of the paper is a proof of this statement and a discussion of its implications. The
choice of SO(10) theory is highly natural. … In short, our results should be taken as an
argument in favor of the noncanonical seesaw: large atmospheric mixing angles and b …
We study the second and third generation masses in the context of the minimal renormalizable SO(10) theory. We show that if the seesaw takes the noncanonical (type II) form, large atmospheric neutrino mixing angle requires unification.
American Physical Society
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