Abstract
T2K is an accelerator-based neutrino experiment providing world-leading measurements of the parameters governing neutrino oscillations. T2K data enabled the first 3 [Formula: see text] exclusion for some intervals of the CP-violating phase [Formula: see text] and precision measurements of the atmospheric parameters [Formula: see text], [Formula: see text]. T2K uses a beam of muon neutrinos and antineutrinos produced at the Japan Proton Accelerator Research Centre (J-PARC) and a series of detectors located at J-PARC and in Kamioka, 295km away, to measure oscillations from neutrino event rates and spectra. The T2K beam will be upgraded with increased power in 2022 and, combined with an upgrade of the ND280 near detector, will usher in a new important physics period for T2K. In preparation for the new physics run, the T2K collaboration is working on an updated oscillation analysis to improve the control of systematic uncertainties. The status of the new analysis developments and the plan to deploy the beam and ND280 upgrade are reviewed.
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