# Search for neutrino counterparts of gravitational-wave events detected by LIGO and Virgo during run O2 with the ANTARES telescope

Abstract : An offline search for a neutrino counterpart to gravitational-wave (GW) events detected during the second observation run (O2) of Advanced-LIGO and Advanced-Virgo performed with ANTARES data is presented. In addition to the search for long tracks induced by $\nu _\mu$ (${\overline{\nu }}_{\mu }$) charged current interactions, a search for showering events induced by interactions of neutrinos of any flavour is conducted. The severe spatial and time coincidence provided by the gravitational-wave alert allows regions above the detector horizon to be probed, extending the ANTARES sensitivity over the entire sky. The results of this all-neutrino-flavour and all-sky time dependent analysis are presented. The search for prompt neutrino emission within ±500 s around the time of six GW events yields no neutrino counterparts. Upper limits on the neutrino spectral fluence and constraints on the isotropic energy radiated via high-energy neutrinos (from a few TeV to a few tens of PeV) are set for each GW event analysed.
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https://hal.archives-ouvertes.fr/hal-03171550
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Submitted on : Tuesday, June 21, 2022 - 3:37:46 PM
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### Citation

A. Albert, M. André, M. Anghinolfi, G. Anton, M. Ardid, et al.. Search for neutrino counterparts of gravitational-wave events detected by LIGO and Virgo during run O2 with the ANTARES telescope. Eur.Phys.J.C, 2020, 80 (5), pp.487. ⟨10.1140/epjc/s10052-020-8015-6⟩. ⟨hal-03171550⟩

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