The Korean Physical Society 06130 22, Teheran-ro 7-gil, Gangnam-gu, Seoul, Republic of Korea 610 Representation : Tae Won NOH TEL: 02-556-4737 FAX: 02-554-1643 E-mail : webmaster@kps.or.kr Copyright(C) KPS, All rights reserved.
30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

Neutron signals from atmospheric neutrino interactions in SK-Gd

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Atmospheric neutrinos Poster

Description

Detecting neutron capture gamma-rays following a charged lepton signal has long been a crucial technique in identifying antineutrino charged current interactions. Since August 2020, the Super-Kamiokande detector has loaded 0.01w% of Gd, the element known to be highly effective in capturing neutrons and emitting gamma-rays, to improve its antineutrino identification capability. Using the 2-years of atmospheric neutrino data taken during the first phase of SK-Gd and a semi-tuned simulation, we verify that neutrino-induced neutrons are captured by the dissolved Gd as expected, and report on our current understanding of the gamma-ray signals from Gd-neutron captures.

Collaboration Super-Kamiokande

Primary author

Seungho Han (ICRR, Univ. of Tokyo)

Presentation Materials