Volume 444 -
38th International Cosmic Ray Conference (ICRC2023) -
Neutrino Astronomy & Physics (NU)
Update on the search for supernova neutrino bursts with the LVD experiment
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Pre-published on:
July 25, 2023
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Abstract
The Large Volume Detector (LVD) at INFN Gran Sasso National Laboratory (Italy) is a 1 kt liquid scintillator neutrino observatory, mainly designed to study neutrinos from gravitational stellar collapses. It has full efficiency for the detection of supernova neutrino bursts in the whole Galaxy. In this contribution we summarize the results of the last run, lasting from 2014, January 1st to 2023, March 3rd for a total live time of 3338 days. No supernova neutrino burst has been observed in this data set. Considering all previously published results since 1992 for a total live-time of 10673 days, the upper limit on the supernova rate up to distances of 25 kpc is 0.078 $y^{−1}$ at 90% c.l..
DOI: https://doi.org/10.22323/1.444.0982
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.