Neutrino oscillations and mixings with three flavors

Global fits to all data of candidates for neutrino oscillations are presented in the framework of a three-flavor model. The analysis excludes mass regions where the MSW effect is important for the solar neutrino problem. The best fit gives $θ_1 \approx 28.9^\circ, θ_2 \approx 4.2^\circ, θ_3 \approx 45.0^\circ, m_2^2 - m_1^2 \approx 2.87 \cdot 10^{-4} eV^2$, and $m_3^2 - m_2^2 \approx 1.11 eV^2$ indicating essentially maximal mixing between the two lightest neutrino mass eigenstates.

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