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A Search for Correlated Low-energy Electron Antineutrinos in KamLAND with Gamma-Ray Bursts
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<jats:title>Abstract</jats:title>
<jats:p>We present the results of a time-coincident event search for low-energy electron antineutrinos in the KamLAND detector with gamma-ray bursts (GRBs) from the Gamma-ray Coordinates Network and Fermi Gamma-ray Burst Monitor. Using a variable coincidence time window of ±500 s plus the duration of each GRB, no statistically significant excess above the background is observed. We place the world’s most stringent 90% confidence level upper limit on the electron antineutrino fluence below 17.5 MeV. Assuming a Fermi–Dirac neutrino energy spectrum from the GRB source, we use the available redshift data to constrain the electron antineutrino luminosity and effective temperature.</jats:p>
Date issued
2022-03-01Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Citation
Winslow, Lindley. 2022. "A Search for Correlated Low-energy Electron Antineutrinos in KamLAND with Gamma-Ray Bursts." The Astrophysical Journal, 927 (1).
Version: Final published version