Search for Tens of MeV Neutrinos associated with Gamma-Ray Bursts in Super-Kamiokande

Abstract

A search for neutrinos produced in coincidence with Gamma-Ray Bursts(GRB) was conducted with the Super-Kamiokande (SK) detector. Between December 2008 and March 2017, the Gamma-ray Coordinates Network recorded 2208 GRBs that occurred during normal SK operation. Several time windows around each GRB were used to search for coincident neutrino events. No statistically significant signal in excess of the estimated backgrounds was detected. The ${\bar{\nu }}_e$ fluence in the range from 8 MeV to 100 MeV in positron total energy for ${\bar{\nu }}_e+p\to e^{+}+n$ was found to be less than $5.07\times 10^5$ cm${}^{-2}$ per GRB in 90\% C.L. Upper bounds on the fluence as a function of neutrino energy were also obtained.

arXiv comment29 pages, 16 figures, 5 tables, accepted by PTEP

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• Gamma Ray Bursts
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• Gravitational waves, neutrino emissions, and effects of hyperons in binary neutron star mergers
• Search for neutrinos from Gamma-Ray Bursts using Super-Kamiokande