References & Citations
High Energy Physics - Phenomenology
Title: Tri-bimaximal Neutrino Mixing and $\theta_{13}$
(Submitted on 18 Mar 2009 (v1), last revised 10 Apr 2009 (this version, v4))
Abstract: We propose an extension of tri-bimaximal mixing to include a non-zero reactor angle $\theta_{13}$ while maintaining the tri-bimaximal predictions for the atmospheric angle $\theta_{23}=45^o$ and solar angle $\theta_{12}=35^o$. We show how such tri-bimaximal-reactor mixing can arise at leading order from the(type I) see-saw mechanism with partially constrained sequential dominance. Partially constrained sequential dominance can be realized in GUT models with a non-Abelian discrete family symmetry, such as $A_4$, spontaneously broken by flavons with a particular vacuum alignment.
Submission history
From: Stephen King [view email][v1] Wed, 18 Mar 2009 17:36:12 GMT (15kb)
[v2] Wed, 18 Mar 2009 20:29:14 GMT (15kb)
[v3] Fri, 27 Mar 2009 12:04:35 GMT (15kb)
[v4] Fri, 10 Apr 2009 13:42:25 GMT (15kb)