Speaker
Shintaro Miki
(Kamioka obs., ICRR, Univ. of Tokyo)
Description
Super-Kamiokande (SK) is the world-largest water Cherenkov detector located at Kamioka mine in Japan. In 2020, we dissolved gadolinium sulfate in the SK water and started SK-Gd phase, where neutron detection efficiency and resolution for neutron capture vertex are improved. In this study, we developed a new atmospheric neutrino reconstruction algorithm using the capture vertex information of the neutrons originating from neutrino reaction. Neutron momentum is estimated from its displacement from its generation vertex to its capture vertex, and used to reconstruct neutrino direction and energy. The algorithm and its performance will be reported.
Primary author
Shintaro Miki
(Kamioka obs., ICRR, Univ. of Tokyo)
