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Tri-bimaximal neutrino mixing from discrete subgroups of SU(3) and SO(3) family symmetry

de Medeiros Varzielas, I., King, S.F. and Ross, G.G. (2007) Tri-bimaximal neutrino mixing from discrete subgroups of SU(3) and SO(3) family symmetry Physics Letters B, 644, (2-3), pp. 153-157. (doi:10.1016/j.physletb.2006.11.015).

Record type: Article


It has recently been shown how tri-bimaximal neutrino mixing can be achieved, using the see-saw mechanism with constrained sequential dominance, through the vacuum alignment of a broken non-Abelian gauged family symmetry such as SO(3) or SU(3). Generalising the approach of Altarelli and Feruglio developed for an A4 model we show how the reduction of the underlying symmetry to a discrete subgroup of SO(3) or SU(3) renders this alignment a generic property of such models. This means near tri-bimaximal mixing can be quite naturally accommodated in a complete unified theory of quark and lepton masses.

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Published date: 11 January 2007


Local EPrints ID: 57165
ISSN: 0370-2693
PURE UUID: 9b31e5ac-c026-4795-a9da-2ba1e07b7c51

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Date deposited: 14 Aug 2008
Last modified: 17 Jul 2017 14:29

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Author: I. de Medeiros Varzielas
Author: S.F. King
Author: G.G. Ross

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