Tuesday, May 21, 2013

1305.4320 (J. -M. Frere et al.)

Neutrino hierarchy and fermion spectrum from a single family in six
dimensions: realistic predictions
   [PDF]

J. -M. Frere, M. Libanov, S. Mollet, S. Troitsky
In this paper, we move from a "proof of concept" to challenging predictions in a flavour model emerging from a single fermion family in six dimensions (6-D) with the two extra dimensions compactified on a sphere. The most striking predictions (beyond the basic ingredients already demonstrated for a realistic quark mass pattern) are for the neutrino sector. Not only can 4-D Majorana masses be generated from 6-D (where no Majorana spinors exist), but Majorana masses are naturally associated to large mixing. The model favours inverted hierarchy and a quasi-Dirac partial suppression of neutrinoless double beta decay.
View original: http://arxiv.org/abs/1305.4320

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