Limits on the Low-Energy Electron Antineutrino Flux from the Brightest GRB of All Time
T. Araki, S. Chauhan, K. Chiba, T. Eda, M. Eizuka, Y. Funahashi, A., Furuto, A. Gando, Y. Gando, S. Goto, T. Hachiya, K. Hata, K. Ichimura, H., Ikeda, K. Inoue, K. Ishidoshiro, Y. Kamei, N. Kawada, Y. Kishimoto, M. Koga,, A. Marthe, Y. Matsumoto, T. Mitsui, H. Miyake, D. Morita
TL;DR
This paper sets upper limits on the electron antineutrino flux from the brightest gamma-ray burst, GRB221009A, in the 1.8-200 MeV range, using KamLAND, and compares these limits to IceCube results.
Contribution
It provides the first flux limits for electron antineutrinos from GRB221009A in the MeV range using KamLAND, expanding the energy spectrum coverage for GRB neutrino searches.
Findings
No excess neutrino events observed coincident with the GRB.
Upper flux limits are established for various time windows.
Results are compared with IceCube's higher-energy neutrino limits.
Abstract
The electron antinuetrino flux limits are presented for the brightest gamma-ray burst (GRB) of all time, GRB221009A, over a range of 1.8-200 MeV using the Kamioka Liquid Scintillator Anti Neutrino Detector (KamLAND). Using a variety of time windows to search for electron antineutrinos coincident with the GRB, we set an upper limit on the flux under the assumption of various neutrino source spectra. No excess was observed in any time windows ranging from seconds to days around the event trigger time. The limits are compared to the results presented by IceCube.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsGamma-ray bursts and supernovae · Neutrino Physics Research · Astrophysics and Cosmic Phenomena