VIRTUAL ONLY: Neutrino Seminar Series – Super-Kamiokande Gadolinium Project (SK-Gd) for Supernova Neutrino Hunting

  • March 31, 2022, 1:00 pm US/Central

This week we are pleased to host Hiroyuki Sekiya from ICRR, University of Tokyo, who will give a seminar on the Super-Kamiokande Gadolinium Project (SK-Gd) for Supernova Neutrino Hunting. Please join us on Thursday at 1 PM Central Time.

The 50k m3 water Cherenkov detector Super-Kamiokande (SK) has been in operation for over 25 years and continues to provide measurements and constraints on various topics in particle physics and astroparticle physics. To extend SK’s reach of measurements to the diffuse supernova neutrino background (DSNB), 0.01% gadolinium (Gd) was added to the detector’s pure water in 2020; the presence of Gd enhances the detector’s ability to identify and distinguish antineutrino-induced events from the background via the coincidence detection of neutrons from inverse beta decay reactions. This also improves the performance of SK during a supernova explosion in our galaxy. It also makes it possible to detect neutrinos prior to a supernova explosion and thus provide a warning of a supernova explosion.
In this talk, I will give an overview of the upgraded hardware of SK-Gd, the results of the DSNB search in the pure water phase, the status of SK-Gd, the preparation for the next supernova explosion in our galaxy, and the prospects of the SK-Gd project.
Thank you,
Sophie, Tanaz, Vedran