paper

Analysis of neutrino oscillation in three-flavor neutrinos

arXiv:hep-ph/9801276 · doi:10.1142/S0217751X99000981

Abstract

We analyzed the solar, terrestrial and atmospheric neutrinos experiments using the three-flavor neutrino framework and got the allowed regions for parameters (Δm_{12}^2, \sin^22θ_{12}, Δm_{23}^2, θ_{13}, θ_{23}). In solar neutrino experiments, we got the large angle solution (Δm_{12}^2, \sin^22θ_{12})=(4x10^{-6} - 7x10^{-5}eV^2, 0.6 - 0.9) and small angle solution (3x10^{-6} - 1.2x10^{-5}eV^2, 0.003 - 0.01) for θ_{13}=0^\circ - 20^\circ. From the terrestrial and atmospheric neutrino experiments, we got the allowed regions (θ_{13}<4^\circ, 24^\circ<θ_{23}<26^\circ) for Δm_{23}^2=2eV^2, (θ_{13}<4^\circ, 24^\circ<θ_{23} <45^\circ) for Δm_{23}^2=0.2eV^2 and (θ_{13}<14^\circ, θ_{23}=40^\circ) for Δm_{23}^2=0.02eV^2. It seems that the large angle solution for (Δm_{12}^2, \sin^22θ_{12}) is favored than the small angle slution from the analysis of zenith angle dependence in atmospheric neutrino sub-GeV experiment.

25 pages, LaTeX, 8 postscript figures included

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