Our people

I conduct research in particle physics and neutrino astronomy using Super-Kamiokande (SK) and Hyper-Kamiokande (HK). In SK, I am responsible for the water system, and by adding gadolinium to the ultrapure water, we dramatically improved the detection efficiency for low-energy electron antineutrinos originating from supernova explosions. This enables us to pursue the discovery of the diffuse supernova neutrino background and to elucidate the mechanism of supernova explosions. For HK, which is currently under construction, I am primarily responsible for the readout electronics system that records signals from photomultiplier tubes. By leveraging HK—whose fiducial mass is more than eight times larger than that of SK—we will test grand unified theories with the world’s best sensitivity through searches for nucleon decay.