Abstract:

The T2K (Tokai to Kamiokande) experiment observes indications of electron neutrino appearance in an almost pure muon neutrino beam. The neutrinos were produced at the JPARC accelerator complex in eastern Japan and detected in the Super-Kamiokande detector, 295 kilometers away under the Japanese alps. In this talk, I will introduce the T2K experiment and explain the electron neutrino appearance analysis including its interpretation in our standard picture of three-flavor neutrino oscillations. I will also briefly discuss future prospects for T2K and some of the implications for the larger world-wide neutrino program.