2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36996We present atmospheric neutrino results from a 79 kiloton year (1289 days) exposure of the Super-Kamiokande detector. Our data are well explained by $ν_μ \to ν_τ$ 2-flavor oscillations. We have been attempting to discriminate between the possible oscillating partners of the muon neutrino as being either the tau neutrino or the sterile neutrino. Pure $ν_μ\toν_s$ oscillation is disfavored at 99% C.L.. Moreover, we performed the appearance search for charged current tau neutrino interactions in the upward-going samples. Our data is consistent with $ν_τ$ appearance at roughly the two-sigma level.8 pages, 4 figures, to be published in the proceedings of XXXVI th Rencontres de Moriond Electroweak Interactions and Unified TheoriesHigh Energy Physics - Experimenttext