Search for Sterile Neutrinos with KM3NeT/ORCA and ANTARES
Résumé
Neutrino Telescopes such as ANTARES and KM3NeT are promising candidates to probe
exotic oscillation phenomena such as sterile neutrinos. ANTARES (Astronomy with a Neutrino
Telescope and Abyss Environmental RESearch) is the largest deep-sea neutrino telescope in
operation, covering an area of 0.01 km3
and taking data since 2007. KM3NeT in totality is
much 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 with
Cosmics in the Abyss), optimised for high-energy neutrino astronomy, and ORCA (Oscillation
Research 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 of
1 GeV. For this reason it is a promising candidate to study neutrinos properties. Here we present
the upper limits from ANTARES and sensitivities of ORCA to sterile neutrinos in the (3+1)
model.
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