Speaker
Description
The Hyper-Kamiokande (Hyper-K) is the third generation of underground water Cherenkov detectors in Japan. It will serve as: (1) the far detector for a long-baseline neutrino oscillation experiment for the upgraded, to 1.3 MW power, J-PARC muon neutrino/antineutrino beam, and (2) a detector capable of observing proton decays, atmospheric neutrinos, and neutrinos from astronomical sources. Hyper-K will be a cylindrical tank with a water depth of 71 m and a diameter of 68 m. The fiducial region of the detector, with a mass of 186 kton, will be instrumented with 20,000 20-inch photomultipliers (PMTs) and 800 multi-PMT modules, each containing 19 3-inch PMTs. The experiment is under construction, and the excavation and tests of detector components are ongoing. The beginning of operation is scheduled for the end of 2027. The research program, including sensitivities to different processes and recent developments of the Hyper-K experiment, will be presented.