Fast Radio Burst Sources and Neutrinos

The KM3NeT experiment is a next-generation neutrino telescope and particle physics detector, consisting of the ORCA and ARCA detectors, organised as 3D arrays of light sensors, and immersed in the depths of the Mediterranean Sea. Identical in their design but differing in scale, ORCA aims at detecting neutrinos in the GeV-TeV range, while ARCA will focus on higher energies in the TeV-PeV range. Both detectors can contribute to the study of astrophysical multi-messenger phenomena. Among the latter, Fast Radio Bursts (FRB) sources are good candidates for multi-messenger emissions due to the huge energy involved in their bursts. However, neutrino emissions from FRB sources are poorly constrained by models, which do not exclude temporal coincidences and motivate a search across both detector energy ranges. In this contribution, I will present the results of a multi-messenger analysis intended to search for spatial and temporal coincidences of astrophysical neutrino signals from the ARCA and ORCA detectors with FRBs. Sources were selected from several published FRB catalogues, taking into account the date and location of the observed bursts. The results of the correlation search conducted in KM3NeT for more than 250 FRBs is provided, setting a limit on the neutrino fluxes for each source.