The Hyper-Kamiokande Experiment
Francesca Di Lodovico · Journal of Physics Conference Series · 2016
The Hyper-Kamiokande experiment is a proposed next generation underground water Cherenkov detector.The baseline design of Hyper-Kamiokande is based on the highly successful Super-Kamiokande experiment, taking full advantage of a well-proven technology.It will serve as the far detector of a long baseline neutrino oscillation experiment envisioned for the upgraded J-PARC beam, and as a detector capable of observing -far beyond the sensitivity of the Super-Kamiokande detector -proton decays, atmospheric neutrinos, and neutrinos from astronomical origins.Assuming a total exposure of 7.5 MW × 10 7 sec integrated proton beam power (corresponding to 1.56 × 10 22 protons on target with a 30 GeV proton beam) to a 2.5-degree off-axis neutrino beam, it is expected that the leptonic CP phase δ CP can be determined to better than 19 degrees for all possible values of δ CP , and CP violation can be established with a statistical significance of more than 3 σ (5 σ ) for 76% (58%) of the δ CP parameter space.Using both ν e appearance and ν µ disappearance data, the expected 1σ uncertainty of sin 2 θ 23 is 0.015(0.006)for sin 2 θ 23 = 0.5(0.45).