Model-agnostic interpretation of the first KM3NeT Ultra-High-Energy event within the Global Neutrino Landscape
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.
Authors
- M. Lamoureux (ORCID: https://orcid.org/0000-0002-8860-5826)
- Jonathan Mauro (ORCID: https://orcid.org/0009-0005-9324-7970)
- C. Argüelles (ORCID: https://orcid.org/0000-0003-4186-4182)
- Alex Wen (ORCID: https://orcid.org/0009-0009-4869-7867)
- Nicholas Kamp
- Per Arne Sevle Myhr
- Gwenhaël W. de Wasseige
Publication Details
- Published
- 2025-09-24
- DOI
- https://doi.org/10.22323/1.501.1117
- Primary Topic
- Astrophysics and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
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