Atmospheric Neutrino Results from Super-Kamiokande

Recent results of the Super-Kamiokande atmospheric neutrino analysis are presented.Super-Kamiokande has measured the flux of atmospheric neutrinos with energies from 100 MeV to 10 TeV, and measured the east-west effect to 8.0 (6.0)σ for electron (muon) neutrinos.The search for tau neutrino appearance from neutrino oscillations has resulted in a 4.6σ deviation from the hypothesis of no tau neutrino appearance.Super-Kamiokande data have a weak preference for normal mass hierarchy (∆χ 2 = χ 2 NHχ 2 IH = -4.3)including the constraints from the reactor neutrino experiments, and the preference is strengthened (∆χ 2 = χ 2 NHχ 2 IH = -5.2) after including constraints from the T2K experiment.