Search for Sterile Neutrinos with KM3NeT/ORCA and ANTARES

• Main Authors: Domi,, A., Coelho, Joao A.B.
• Other Authors: 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), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), Istituto Nazionale di Fisica Nucleare (INFN), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2019
• Subjects: [SDU]Sciences of the Universe [physics]; [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]; Orca
• Online Access: https://hal.in2p3.fr/in2p3-02282598; https://hal.in2p3.fr/in2p3-02282598/document; https://hal.in2p3.fr/in2p3-02282598/file/Poster_ICRC-Domi.pdf

International audience Neutrino Telescopes such as ANTARES and KM3NeT are promising candidates to probeexotic oscillation phenomena such as sterile neutrinos. ANTARES (Astronomy with a NeutrinoTelescope and Abyss Environmental RESearch) is the largest deep-sea neutrino telescope inoperation, covering an area of 0.01 km3and taking data since 2007. KM3NeT in totality ismuch more extended than ANTARES and it is under construction in the Mediterranean Sea.When completed, it will consist of two separate detectors: ARCA (Astroparticle Research withCosmics in the Abyss), optimised for high-energy neutrino astronomy, and ORCA (OscillationResearch with Cosmics in the Abyss) for neutrino oscillation studies with atmospheric neutrinos.ORCA will have an effective mass of 8 Mtons and a low neutrino energy detection threshold of1 GeV. For this reason it is a promising candidate to study neutrinos properties. Here we presentthe upper limits from ANTARES and sensitivities of ORCA to sterile neutrinos in the (3+1)model.