Wednesday 21 February 2018 Speaker: David Hadley (University of Warwick) Title: "From T2K to Hyper-K” Abstract: Recent measurements by the currently operating long baseline neutrino oscillation experiments, T2K and NOvA, show weak evidence for CP violation in neutrino oscillations. Higher statistics experiments will be necessary in order to make a convincing discovery and precise determination of the CP violating phase $\delta_CP$. Hyper-Kamiokande (Hyper-K), a next generation underground water Cherenkov detector, is the logical continuation of the highly successful program of neutrino physics at Super-Kamiokande and T2K. The detector is an order of magnitude larger than Super-Kamiokande, with the same photo-coverage, but largely improved photodetectors. Hyper-K will also be capable of searching for proton decay, and observing atmospheric neutrinos and neutrinos from astronomical sources. The status of the current long baseline measurements at T2K and projected sensitivities at Hyper-K will be reviewed and the on-going R&D efforts to realise Hyper-K will be presented.