Reproducing lepton mixing in a texture zero model

preprint2013arXivOpen access

Abstract

We note that the emerging features of lepton mixing can be reproduced if, with inverted neutrino mass ordering, both the smallest neutrino mass and the ττττ element of the neutrino mass matrix vanish. Then, the atmospheric neutrino mixing angle is less than maximal and the Dirac phase δδ is close to ππ. We derive the correlations among the mixing parameters and show that there is a large cancellation in the effective mass responsible for neutrinoless ββββ decay. Three simple seesaw models leading to our scenario are provided.

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