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Models of maximal atmospheric neutrino mixing

W. Grimus, L. Lavoura

hep-pharXiv:hep-ph/0310050

Abstract

We discuss two types of neutrino mass matrices which both give θ23 = 45, i.e., a maximal atmospheric mixing angle. We review three models, based on the seesaw mechanism and on simple extensions of the scalar sector of the Standard Model, where those mass matrices are obtained from symmetries.

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