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30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

Search for low-energy Borexino's signals from fast radio bursts

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Astrophysical neutrinos Poster

Speaker

Alexander Derbin (Petersburg Nuclear Physics Institute NRC KI)

Description

Search for low-energy Borexino's signals from fast radio bursts.
A.V. Derbin for the Borexino collaboration
The search for neutrino events in correlation with 42 most intense fast radio bursts (FRBs) has been performed using the Borexino data. We have searched for signals with visible energies above 250 keV within a time window of ±1000 s corresponding to the detection time of a particular FRB. We also applied an alternative approach based on searching for specific shapes of neutrino-electron scattering spectra in the full exposure spectrum of the Borexino detector. In particular, two incoming neutrino spectra were considered: the monoenergetic line and the spectrum expected from supernovae. The same spectra were considered for electron antineutrinos detected through the inverse beta-decay reaction. No statistically significant excess over the background was observed. As a result, the strongest upper limits on FRB-associated neutrino fluences of all flavors have been obtained in the 0.5 − 50 MeV neutrino energy range.

Collaboration Borexino collaboration

Primary authors

Alexander Derbin (Petersburg Nuclear Physics Institute NRC KI) Borexino collaboration

Presentation materials