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The KM3NeT collaboration is constructing two last-generation underwater neutrino telescopes in two abyssal sites of the Mediterranean Sea. The scientific goal is to identify high-energy cosmic neutrinos, instrumenting a kilometer cube detection volume. Both telescopes are Cherenkov detectors based on the same detection technology but with different geometrical layouts. Thanks to such two installations, KM3NeT can cover a large neutrino energy range thus addressing various science topics. ARCA (Astroparticle Research with Cosmics in the Abyss), 100 km offshore Portopalo di Capopassero (Sicily) and at a depth of 3500 m, is designed for the detection of high-energy astrophysical neutrinos in the energy range of TeV-PeV; ORCA (Oscillation Research with Cosmics in the Abyss), 40 km offshore Toulon (France) and at a depth of 2500 m, is optimised for the detection of atmospheric neutrinos starting from few GeV. In this proceeding, an overview of the technology developed for the construction of the telescopes and their current status will be presented. The expected performance of the full detectors and some preliminary results obtained with the first deployed detection units will be reviewed.

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The KM3NeT Underwater Neutrino Telescope

  • 会议论文

  • 出版模式：

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  • 发表日期：

    2026年

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  • Immacolata Carmen Rea

摘要

The KM3NeT collaboration is constructing two last-generation underwater neutrino telescopes in two abyssal sites of the Mediterranean Sea. The scientific goal is to identify high-energy cosmic neutrinos, instrumenting a kilometer cube detection volume. Both telescopes are Cherenkov detectors based on the same detection technology but with different geometrical layouts. Thanks to such two installations, KM3NeT can cover a large neutrino energy range thus addressing various science topics. ARCA (Astroparticle Research with Cosmics in the Abyss), 100 km offshore Portopalo di Capopassero (Sicily) and at a depth of 3500 m, is designed for the detection of high-energy astrophysical neutrinos in the energy range of TeV-PeV; ORCA (Oscillation Research with Cosmics in the Abyss), 40 km offshore Toulon (France) and at a depth of 2500 m, is optimised for the detection of atmospheric neutrinos starting from few GeV. In this proceeding, an overview of the technology developed for the construction of the telescopes and their current status will be presented. The expected performance of the full detectors and some preliminary results obtained with the first deployed detection units will be reviewed.