Hyper-Kamiokande (Hyper-K), the successor to Super-Kamiokande, represents a significant advancement in water Cherenkov detector technology. With a fiducial volume of 188 kilotons and enhanced photodetector systems, Hyper-K is poised to address several key questions in neutrino physics and astrophysics. Located 600 meters underground to reduce cosmic-ray interference, Hyper-K aims to explore various neutrino phenomena, including CP violation in neutrinos, precise measurements of neutrino oscillations, and searches for proton decay.

Of particular importance is its potential in neutrino astrophysics. Hyper-K will provide precise measurements of solar neutrinos, supernova burst neutrinos, and the diffuse supernova neutrino background (SRN). These measurements will yield insights into stellar evolution and supernova dynamics, including testing models that predict neutrino flux modulations caused by supernova core motions. Additionally, Hyper-K’s ability to detect supernova relic neutrinos will contribute to our understanding of star formation rates and the history of supernova explosions in the universe.

This presentation will discuss the physics potential of Hyper-K, highlighting its role in pushing the frontiers of both particle and astrophysical neutrino research.