pith. sign in

arxiv: hep-ph/0603059 · v2 · pith:AT6AWPT2new · submitted 2006-03-08 · ✦ hep-ph

A₄ symmetry and prediction of U_(e3) in a modified Altarelli-Feruglio model

classification ✦ hep-ph
keywords modelpredictionsolarsymmetryaltarellialtarelli-feruglioanalysisangle
0
0 comments X
read the original abstract

We show that a modification of a recently proposed model by Altarelli and Feruglio with softly broken $A_4$ symmetry leads naturally to nonvanishing $U_{e3}$ with $\theta_{13}\simeq 2^o - 4^o$. The observed mass squared differences for solar and atmospheric neutrinos have been fitted without fine tuning among model parameters. The predicted solar neutrino mixing angle is brought down from the tri-bimaximal prediction to be in concordance with the latest global analysis including experimental data from KamLAND and SNO.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.