Nearly Degenerate Neutrinos and Broken Flavour Symmetry ∗

@inproceedings{Barbieri2008NearlyDN,
  title={Nearly Degenerate Neutrinos and Broken Flavour Symmetry ∗},
  author={Riccardo Barbieri and Lawrence J. Hall and Gordon L. Kane and Graham G. Ross},
  year={2008}
}
Theories with non-Abelian flavour symmetries lead at zeroth order to neutrino degeneracy and massless charged fermions. The flavour symmetry is spontaneously broken sequentially to give hierarchies ∆m2atm ≫ ∆m2⊙ and mτ ≫ mμ ≫ me, and a misalignment of the vacuum between neutrino and charged sectors gives large θatm. Explicit models are given which determine… CONTINUE READING