Speaker
Dr
Katsuki Hiraide
(Kamioka Observatory, ICRR, the University of Tokyo)
Description
A new era of the gravitational-wave astronomy has recently begun with multi-messenger observations. There are some theoretical predictions that binary neutron-star mergers emit neutrinos with energies similar to those of supernova burst neutrinos. Ton-scale liquid-xenon detectors for direct dark matter searches also have the potential to observe galactic supernova neutrino via coherent elastic neutrino-nucleus scattering (CEvNS). The XMASS-I detector located the Kamioka underground laboratory uses 832 kg of liquid-xenon in its active volume and was stably taking data since November 2013 for more than 5 years, hoping such a rare event to be observed. Using these data, we performed a follow-up search for event bursts correlated with gravitational-wave events. We looked for event bursts without assuming any particular burst model. The results were also interpreted in terms of neutrino fluence. In this talk, we will report results from this search.
Primary author
Dr
Katsuki Hiraide
(Kamioka Observatory, ICRR, the University of Tokyo)
