K. Nishikawa

TL;DR: In this article, the authors investigated the possibility of building a large underground cavern there to install a 100 kton class Giant Liquid Argon Time Projection Chamber (TPC) detector for a neutrino oscillation and proton decay experiment and found that the Okinoshima Island site is a good candidate site for such an observatory.

TL;DR: In this article, the differential cross section for the lepton trident production in the Coulomb field of nucleus is calculated using a standard technique of quantum electrodynamics, where eight diagrams are taken into account in calculation.

TL;DR: The JSNS$^{2}$ (J-PARC Sterile Neutrino Search at J PARC Spallation Neutron Source) experiment as mentioned in this paper aims to search for neutrino oscillations over a 24\,m short baseline at JPARC.

TL;DR: In this article, the results of accelerator neutrino experiments are reviewed with emphasis on facilities and instrumentations, and the measurements of the last of the three mixing angles, CP-violation phase and mass hierarchy of the mass eigen-states are discussed.

TL;DR: The T2K (Tokai to Kamioka) neutrino experiment has been proposed in this paper, where neutrinos were detected in the lepton sector in the first stage and CP violation was investigated with a larger water Cherenkov detector in the future.