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KM3NeT is a multi-purpose neutrino observatory under construction in the Mediterranean Sea. It is composed of two Cherenkov detectors with different designs, ranging from high-statistic measurement of atmospheric neutrino fluxes in the 1–100 GeV energy range, up to the typical fluxes of extraterrestrial neutrinos from 100 GeV to 10 PeV. An overview of the first results is presented here. KM3NeT/ORCA observes muon neutrino disappearance with more than 6 standard deviations and performs a precision measurement of atmospheric oscillation parameters. KM3NeT/ARCA surveys the sky in search for sources of extraterrestrial neutrinos, also participating in a prompt multi-messenger program including the search for correlations of neutrinos with gravitational waves. The KM3NeT science case also comprehends indirect search for physics beyond the Standard Model appearing through modifications induced to the oscillation probabilities (non-standard interactions, neutrino decay, quantum decoherence), and indirect searches for dark matter.

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The KM3NeT Neutrino Telescope: Results from First Data

  • 会议论文

  • 发表日期：

    2025年

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  • Sara Rebecca Gozzini

摘要

KM3NeT is a multi-purpose neutrino observatory under construction in the Mediterranean Sea. It is composed of two Cherenkov detectors with different designs, ranging from high-statistic measurement of atmospheric neutrino fluxes in the 1–100 GeV energy range, up to the typical fluxes of extraterrestrial neutrinos from 100 GeV to 10 PeV. An overview of the first results is presented here. KM3NeT/ORCA observes muon neutrino disappearance with more than 6 standard deviations and performs a precision measurement of atmospheric oscillation parameters. KM3NeT/ARCA surveys the sky in search for sources of extraterrestrial neutrinos, also participating in a prompt multi-messenger program including the search for correlations of neutrinos with gravitational waves. The KM3NeT science case also comprehends indirect search for physics beyond the Standard Model appearing through modifications induced to the oscillation probabilities (non-standard interactions, neutrino decay, quantum decoherence), and indirect searches for dark matter.