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http://hdl.handle.net/2307/278
Title: | A simplest A4 model for Tri-Bimaximal neutrino mixing | Authors: | Altarelli, Guido Meloni, Davide |
Keywords: | A(4) family symmetry long-base-line flavor symmetry mass matrix cp violation oscillation unification |
Issue Date: | 2009 | Publisher: | Institute of Physics Publishing Ltd. | Source: | 45 (Source: SPIRES, Date 7.7.2010) | Abstract: | We present a see-saw A(4) model for Tri-Bimaximal mixing which is based on a very economical flavour symmetry and field content and still possesses all the good features of A(4) models. In particular the charged lepton mass hierarchies are determined by the A(4) x Z(4) flavour symmetry itself without invoking a Froggatt-Nielsen U(1)symmetry. Tri-Bimaximal mixing is exact in leading order while all the mixing angles receive corrections of the same order in next-to-leading approximation. As a consequence the predicted value of theta(13) is within the sensitivity of the experiments which will take data in the near future. The light neutrino spectrum, typical of A(4) see-saw models, with its phenomenological implications, also including leptoproduction, is studied in detail. | Description: | Citazioni 45 (Source: SPIRES, Date 7.7.2010) | URI: | http://hdl.handle.net/2307/278 | ISSN: | 0954-3899 | DOI: | 10.1088/0954-3899/36/8/085005 |
Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
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