Analysis of Neutrino Oscillation in Three-Flavor Neutrinos.

We analyze the solar, terrestrial and atmospheric neutrino experiments including SuperKamiokande data using the three-flavor neutrinos framework and obtain the allowed region for parameters (Δm[sup 2, sub 12], sin² 2θ[sub 12], Δm[sup 2, sub 23], θ[sub 13], θ[sub 23]). In solar neutrino experiments, we obtain the large angle solution (Δm[sup 2, sub 12], sin² 2θ[sub 12]) = (4 × 10[sup -6] -7 × 10[sup -5] eV², 0.6-0.9) and small angle solution (3 × 10[sup -6] - 1.2 × 10[sup -5] eV², 0.003 - 0.01) for θ[sub 13] = 0° - 20°. From the terrestrial and atmospheric neutrino experiments including the sub-GeV and multi-GeV zenith angle dependence in SuperKamiokande 535 days data, we found that the ν[sub µ] - ν[sub τ] mixing is large and the range of Δm[sup 2, sub 23] as 0.02 ∼ 0.0002 eV². There is no significant difference between large θ[sub 12] angle solution and small one. [ABSTRACT FROM AUTHOR]