Speaker
Description
KM3NeT is a multi-purpose neutrino observatory under construction in the Mediterranean Sea. It is composed of two Cherenkov detectors with different designs: ORCA, a compact and dense detector optimised for the high-statistic measurement of atmospheric neutrino physics in the 1-100 GeV energy range, and ARCA, instrumenting a cubic kilometre to catch fluxes of extraterrestrial neutrinos from 100 GeV to 10 PeV. The two detectors have a final configuration comprising 115 and 230 detection lines, respectively. With its modular layout, partial configurations of KM3NeT take data promptly upon deployment. An overview of the first results will be presented. ORCA observes muon neutrino disappearance with more than 6 standard deviations and performs a precision measurement of atmospheric oscillation parameters. 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. Both the ARCA and ORCA detectors search for neutrinos produced in pair annihilations of dark matter, thanks to their view of the Milky Way Centre. Other new physics effects are studied through modifications induced to the oscillation probabilities: results on non-standard interactions, neutrino decay and quantum decoherence as measured by a ORCA are discussed here.
| Track type | Neutrino Physics |
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