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The neutrino mass matrix and (selected) variants of A(4)

AutorHirsch, Martin
Palabras claveNeutrinos
flavour symmetries.
Fecha de publicación13-mar-2009
EditorSpringer
CitaciónPramana Vol.72 No.1, jan 2009 pp.183-193
ResumenRecent neutrino oscillation experiments have measured leptonic mixing angles with considerable precision. Many theoretical attempts to understand the peculiar mixing structure, observed in these measurements, are based on non-Abelian flavour symmetries. This talk concentrates exclusively on models based on the non-Abelian symmetry A(4). A(4) is particularly well suited to describe three family mixing, and allows to explain the near tri-bimaximal mixing observed. Special emphasis is put here on the discussion of the neutrinoless double beta decay observable < m(nu)>. Different models based on A(4) with very similar predictions for neutrino angles can yield vastly different expectations for < m(nu)>. Neutrinoless double beta decay can thus serve, in principle, as a discriminator between different neutrino mass models.
Versión del editorhhtp://dx.doi.org/10.1007/s12043-009-0015-x
URIhttp://hdl.handle.net/10261/15953
DOI10.1007/s12043-009-0015-x
ISSN0304-4289
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