Model-agnostic interpretation of the first KM3NeT Ultra-High-Energy event within the Global Neutrino Landscape
Year: 2025
Type: conference-paper
Abstract: On February 13th, 2023, the KM3NeT/ARCA telescope detected a neutrino candidate with an estimated energy in the hundreds of PeVs. We review the observation of this ultra-high- energy neutrino in light of observations above tens of PeV from the IceCube and Pierre Auger observatories. Furthermore, we discuss how the ultra-high-energy data were fit together with the IceCube measurements at lower energies, either with a single power law or with a broken power law, allowing for the presence of a new component in the spectrum. Finally, we present the prospects that may lead to resolving this apparent discrepancy and better characterise the neutrino landscape at ultra-high energies.
DOI: 10.22323/1.501.1117
Institutions: UCLouvain, Harvard University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: National Science Foundation, Belgian American Educational Foundation, European Commission, Agence Nationale de la Recherche, Grantová Agentura České Republiky, Fonds De La Recherche Scientifique - FNRS, Centre National de la Recherche Scientifique, Shota Rustaveli National Science Foundation, Région Normandie, HORIZON EUROPE Framework Programme, Labex UnivEarthS, Institut National de Physique Nucléaire et de Physique des Particules
Awards: G1323502114, G1571383463, Towards full implementation of the KM3NeT Research Infrastructure, G434337789, G4583304758, G4656594441, G4862615579, G5602316953, G7240651115, G7773004148, G7799207878, Demonstration of Ability to Establish the Mass Ordering of Neutrinos in the Sea, Université de Paris, Earth - Planets - Universe: observation, modeling, transfer, G8930446
OpenAlex ID: W4414481865
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