Experimental Highlights from Super-Kamiokande

Recent results from Super-Kamiokande are presented. Solar and atmospheric neutrinos have been studied in detail since 1996. The data of atmospheric neutrinos show strong up-down asymmetry and provide evidence for oscillation along their way through Earth. The selected data support oscillations of νμ → ντ and rule out the two-flavor νμ → νs oscillation. The underlying parameters for the νμ → ντ oscillations are determined to be [Formula: see text] and sin 22θ > 0.89ata90%C.L. Proton decays into various final states have been searched for but no evidence was found. Lower limits on the partial lifetimes are presented for major decay modes, especially those for p → e+π0 and [Formula: see text] are 5.0 × 1033 yr and 1.9 × 1033 yr , respectively.