Neutrino astrophysics with Hyper-Kamiokande

[摘要] Hyper-Kamiokande (Hyper-K) is a proposed next generation underground large water Cherenkov detector. The detector consists of 1 Mt pure water tank with surrounding 99,000 newly developed photo sensors, providing fiducial volume of 0.56 Mt. The energies, positions and directions of charged particles produced by neutrino interactions are detected using its Cherenkov light in water. Our detector will be located at deep underground to reduce the cosmic muon flux and its spallation products, which is a dominant background at the low energy analysis. Hyper-K will play a considerable role in the next neutrino physics frontier, even in the neutrino astrophysics. The detection with large statistics of astrophysical neutrons, i.e., solar neutrino, supernova burst neutrino and supernova relic neutrino, will be remarkable information for both of particle physics and astrophysics.

[发布机构] Department of Physics, Kobe University, 1-1 Rokko-dai, Nada, Kobe, Hyogo, Japan^1

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Cherenkov light;Neutrino astrophysics;Neutrino interactions;Neutrino physics;Solar neutrino;Spallation products;Supernova relic neutrinos;Water Cherenkov detectors