The XIX International Conference on Topics in Astroparticle and Underground Physics (TAUP2025)

Neutrino-Oxygen interaction measurement at the Supernova neutrino energy regime with Spallation Neutron Source in Oak Ridge National Laboratory

27 Aug 2025, 18:00

2h

International Conference Center

Poster Neutrino Physics and Astrophysics Poster session

Speaker

Masayuki Harada (ICRR, The University of Tokyo)

Description

Neutrino observations from nearby supernova (SN) bursts in underground detectors, such as Super-Kamiokande and future Hyper-Kamiokande, play a key role in understanding the SN explosion mechanism.
However, the neutrino-oxygen interaction in a few tens of MeV, which is the target energy region of SN neutrinos, is not well measured, and the neutrino information cannot be fully obtained from the precious SN burst. Therefore, a detailed understanding of this reaction is essential to maximizing supernova neutrino observations.
A new neutrino cross-section measurement is proposed using the Spallation Neutrino Source (SNS) in Oak Ridge National Laboratory (ORNL).
This poster reports the current results of a prototype test in Kamioka, Japan, and prospects for the ORNL measurement plan.