Experimental highlights from Super-Kamiokande
2002
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 and sin22θ > 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 are 5.0 × 1033yr and 1.9 × 1033yr, respectively.
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