[en] The results of the third phase of the Super-Kamiokande solar neutrino measurement are presented and compared to the first and second phase results. With improved detector calibrations, a full detector simulation, and improved analysis methods, the systematic uncertainty on the total neutrino flux is estimated to be ±2.1%, which is about two thirds of the systematic uncertainty for the first phase of Super-Kamiokande. The observed ⁸B solar flux in the 5.0 to 20 MeV total electron energy region is 2.32±0.04(stat)±0.05(sys)x10⁶ cm^-2 sec^-1 under the assumption of pure electron-flavor content, in agreement with previous measurements. A combined oscillation analysis is carried out using SK-I, II, and III data, and the results are also combined with the results of other solar neutrino experiments. The best-fit oscillation parameters are obtained to be sin²θ₁₂=0.30_-0.01^+0.02(tan²θ₁₂=0.42_-0.02^+0.04) and Δm₂₁²=6.2_-1.9^+1.1x10^-5 eV². Combined with KamLAND results, the best-fit oscillation parameters are found to be sin²θ₁₂=0.31±0.01(tan²θ₁₂=0.44±0.03) and Δm₂₁²=7.6±0.2x10^-5 eV². The ⁸B neutrino flux obtained from global solar neutrino experiments is 5.3±0.2(stat+sys)x10⁶ cm^-2 s^-1, while the ⁸B flux becomes 5.1±0.1(stat+sys)x10⁶ cm^-2 s^-1 by adding KamLAND results. In a three-flavor analysis combining all solar neutrino experiments, the upper limit of sin²θ₁₃ is 0.060 at 95% C.L.. After combination with KamLAND results, the upper limit of sin²θ₁₃ is found to be 0.059 at 95% C.L.

[en] We present a search for differences in the oscillations of antineutrinos and neutrinos in the Super-Kamiokande-I, -II, and -III atmospheric neutrino sample. Under a two-flavor disappearance model with separate mixing parameters between neutrinos and antineutrinos, we find no evidence for a difference in oscillation parameters. Best-fit antineutrino mixing is found to be at (Δm²,sin²2θ)= (2.0x10^-3 eV²,1.0) and is consistent with the overall Super-K measurement.

[en] We present a search for nonzero θ₁₃ and deviations of sin²θ₂₃ from 0.5 in the oscillations of atmospheric neutrino data from Super-Kamiokande I, II, and III. No distortions of the neutrino flux consistent with nonzero θ₁₃ are found and both neutrino mass hierarchy hypotheses are in agreement with the data. The data are best fit at Δm²=2.1x10^-3 eV², sin²θ₁₃=0.0, and sin²θ₂₃=0.5. In the normal (inverted) hierarchy θ₁₃ and Δm² are constrained at the one-dimensional 90% C.L. to sin²θ₁₃<0.04(0.09) and 1.9(1.7)x10^-3<Δm²<2.6(2.7)x10^-3 eV². The atmospheric mixing angle is within 0.407≤sin²θ₂₃≤0.583 at 90% C.L.