Neutrinos: Windows to Planck Physics

Details Neutrinos: Windows to Planck Physics Neutrinos: Windows to Planck Physics

2003-12-31

arxiv.org/abs/hep-ph/0401001v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

COntribution to Quantum Theory and Symmetries COnference, Univ of Cincinatti, October 2003; Latex, 11 pages

Scientific paper

After recalling some elegant contributions of the late Freydoon Mansouri, we turn to neutrino physics and use a {\it modicum} of grand unification to relate quark and lepton mixing matrices. We advocate an expansion for the MNS matrix, {\it \`a la} Wolfenstein, and argue that in a wide class of models, $\theta_{13}$ is a Cabibbo mixing effect. Also the large neutrino mixing angles reflect the mass patterns of the right-handed neutrinos near the Planck scale, and provide evidence for family structure at that scale.

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