Tri-Bimaximal Mixing and the Neutrino Oscillation Data

Details Tri-Bimaximal Mixing and the Neutrino Oscillation Data Tri-Bimaximal Mixing and the Neutrino Oscillation Data

2002-02-07

arxiv.org/abs/hep-ph/0202074v1

Phys.Lett.B530:167,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 Pages in LaTeX, 2 Figures as postscript files

Scientific paper

10.1016/S0370-2693(02)01336-9

Following recent results from the SNO solar neutrino experiment and the K2K long-baseline neutrino experiment, the combined existing data on neutrino oscillations now point strongly to a specific form for the lepton mixing matrix, with effective bimaximal mixing of $\nu_{\mu}$ and $\nu_{\tau}$ at the atmospheric scale and effective trimaximal mixing for $\nu_e$ with $\nu_{\mu}$ and $\nu_{\tau}$ at the solar scale (hence `tri-bimaximal' mixing). We give simple mass-matrices leading to tri-bimaximal mixing, and discuss its relation to the Fritzsch-Xing democratic ansatz.

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