Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - NU - Neutrino
Supernova Neutrinos search with the LVD experiment: the 2019 update
C.F. Vigorito,* G. Bruno, W. Fulgione, A. Molinario
*corresponding author
Full text: pdf
Pre-published on: 2019 July 22
Published on:
Abstract
The Large Volume Detector (LVD) at the INFN Gran Sasso National
Laboratory, Italy, is a neutrino observatory designed
to study low energy neutrinos from gravitational stellar
collapses. The detector, 1 kton of liquid scintillator, is sensitive to core-collapse supernovae via neutrino
burst detection with 100\% efficiency over the Galaxy.
In this paper we summarize the results of the last run, lasting from 2014, January
1$^{st}$ to 2019, June 6$^{th}$ for a total live time of $1978$ days.
In the lack of a positive observation in this data set and including all previously published results since 1992 for a total of 9313 days, the upper limit on the rate of core collapse and
failed supernova explosions out to distances of 25 kpc is $0.09$ year$^{-1}$ at 90\% c.l..
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