Knitting neutrino mass textures with or without Tri-Bi maximal mixing (Journal article)

Leontaris, G. K./ Vlachos, N. D.

The solar and baseline neutrino oscillation data suggest bimaximal neutrino mixing among the first two generations, and trimaximal mixing between all three neutrino flavors. It has been conjectured that this indicates the existence of an underlying symmetry for the leptonic fermion mass textures. The experimentally measured quantities, however, are associated to the latter indirectly and in a rather complicated way through the mixing matrices of the charged leptons and neutrinos. Motivated by these facts, we derive exact analytical expressions which directly link the charged lepton and neutrino mass and mixing parameters to measured quantities and obtain constraints on the parameter space. We discuss deviations from Tri-Bi mixing matrices and present minimal extensions of the Harrison, Perkins and Scott matrices capable of interpreting all neutrino data. (C) 2011 Elsevier B.V. All rights reserved.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
Keywords: neutrino masses,lepton mixing angles,tri-bi maximal mixing,lepton mass textures,flavor symmetry,oscillations,a(4),fermion,models
URI: https://olympias.lib.uoi.gr/jspui/handle/123456789/15905
ISSN: 0370-2693
Link: <Go to ISI>://000294142600007
http://ac.els-cdn.com/S037026931100712X/1-s2.0-S037026931100712X-main.pdf?_tid=4b394a4064c4450d99cf1d6f39e2b435&acdnat=1334224351_4fc5c071c79fd78de5b2539c892dd593
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