http://arxiv.org/abs/1907.03019
The experiment on recording neutrino bursts operates since the mid-1980. As the target, we use two parts of the facility with the total mass of 240 tons. The current status of the experiment and some results related to the investigation of background events and the stability of facility operation are presented. Over the period of June 30, 1980 to December 31, 2018, the actual observational time is 33.02 years. No candidate for the stellar core collapse has been detected during the observation period. An upper bound of the mean frequency of core collapse supernovae in our Galaxy is 0.070 year$^{-1}$ (90\% CL).
Y. Novoseltsev, M. Boliev, I. Dzaparova, et. al.
Tue, 9 Jul 19
30/81
Comments: Submitted to Astropart.Phys