Szczegóły publikacji
Opis bibliograficzny
Observation of an ultra-high-energy cosmic neutrino with KM3NeT / S. Aiello, [et al.], P. KALACZYŃSKI, [et al.] // Nature ; ISSN 0028-0836 . — 2025 — vol. 638, s. 376–382, [13]. — Bibliogr. s. 381, [387], Abstr. — Publikacja dostępna online od: 2025-02-12. --- Author correction: Nature. - 2025 vol. 640 s. E3 DOI: 10.1038/s41586-025-08836-z (dostęp: \URL{https://www-1nature-1com-1q5yy4oe4001b.wbg2.bg.agh.edu.pl/articles/s41586-025-08836-z.pdf}). — P. Kalaczyński - dod. afiliacja: AstroCeNT, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw
Autorzy (286)
- AGHKalaczyński Piotr
- Aiello S.
Dane bibliometryczne
| ID BaDAP | 158909 |
|---|---|
| Data dodania do BaDAP | 2025-04-16 |
| Tekst źródłowy | URL |
| DOI | 10.1038/s41586-024-08543-1 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Nature |
Abstract
The detection of cosmic neutrinos with energies above a teraelectronvolt (TeV) offers a unique exploration into astrophysical phenomena1-3. Electrically neutral and interacting only by means of the weak interaction, neutrinos are not deflected by magnetic fields and are rarely absorbed by interstellar matter: their direction indicates that their cosmic origin might be from the farthest reaches of the Universe. High-energy neutrinos can be produced when ultra-relativistic cosmic-ray protons or nuclei interact with other matter or photons, and their observation could be a signature of these processes. Here we report an exceptionally high-energy event observed by KM3NeT, the deep-sea neutrino telescope in the Mediterranean Sea4, which we associate with a cosmic neutrino detection. We detect a muon with an estimated energy of 120^+110_-60 petaelectronvolts (PeV). In light of its enormous energy and near-horizontal direction, the muon most probably originated from the interaction of a neutrino of even higher energy in the vicinity of the detector. The cosmic neutrino energy spectrum measured up to now5-7 falls steeply with energy. However, the energy of this event is much larger than that of any neutrino detected so far. This suggests that the neutrino may have originated in a different cosmic accelerator than the lower-energy neutrinos, or this may be the first detection of a cosmogenic neutrino8, resulting from the interactions of ultra-high-energy cosmic rays with background photons in the Universe.
