Sensitivity for astrophysical neutrino searches with KM3NeT-ORCA

• Main Authors: Wasseige, G.De, Kouchner, A., Molla, M. Colomer, Dornic, D., Hallmann, S.
• Other Authors: AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Instituto de Fisica Corpuscular (IFIC), Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC)-Universitat de València (UV), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander Universität Erlangen-Nürnberg = University of Erlangen-Nuremberg (FAU)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2019
• Subjects: [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]; Orca
• Online Access: https://hal.in2p3.fr/in2p3-02282653; https://hal.in2p3.fr/in2p3-02282653/document; https://hal.in2p3.fr/in2p3-02282653/file/4-poster-NMO_ICRC_2019-GDW_infradev.pdf

International audience The KM3NeT facility, the next generation of large neutrino detectors, is currently being deployedin the Mediterranean Sea. KM3NeT will consist of two ARCA ("Astroparticle Research withCosmics in the Abyss") building blocks, optimized for very high-energy astrophysical neutrinos,and of the ORCA one ("Oscillation Research with Cosmics in the Abyss"). While ORCA hasoriginally been designed to study neutrino oscillations using atmospheric neutrinos, this densearray may also be used for astrophysical neutrino searches. We present a first estimate of thesensitivity for GeV–100GeV neutrino searches in time/space coincidence with GW alerts sentby the LIGO and Virgo collaborations (LVC). We use the final configuration of ORCA, i.e.ORCA-115 detection units, to estimate the sensitivity of ORCA to gravitational wave events thatmay be detected by LVC during O3