Open AccessQuasi-degenerate neutrinos from an abelian family symmetry
Author(s) -
P. Binétruy,
Stéphane Lavignac,
S.T. Petcov,
Pierre Ramond
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/446359
Subject(s) - neutrino , degenerate energy levels , symmetry (geometry) , physics , context (archaeology) , particle physics , mixing (physics) , abelian group , class (philosophy) , quark , theoretical physics , fermion , mathematics , pure mathematics , computer science , geometry , geography , quantum mechanics , artificial intelligence , archaeology
The authors show that models with an abelian family symmetry which accounts for the observed hierarchies of masses and mixings in the quark sector may also accommodate quasi-degeneracies in the neutrino mass spectrum. Such approximate degeneracies are, in this context, associated with large mixing angles. The parameters of this class of models are constrained. The authors discuss their phenomenological implications for present and foreseen neutrino experiments