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A Search for Correlated Low-energy Electron Antineutrinos in KamLAND with Gamma-Ray Bursts
Name
Abe_2022_ApJ_927_69.pdf
Description
Published version
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609.93 KB
Format
Adobe PDF
Checksum (MD5)
4a635221a17e876badc986322c6232a4
Author(s)
Winslow, Lindley
Date Issued
March 1, 2022
Journal
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
Abstract
Abstract
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.
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.
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
10.3847/1538-4357/ac4e7e
