ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

The KM3NeT ultra-high-energy event

NázevTitle
The KM3NeT ultra-high-energy eventThe KM3NeT ultra-high-energy event
Druh výsledkuResult type
Příspěvek ve sborníkuProceedings paper
AutořiAuthors
A.B. Bouasla, R. Attallah, O. Adriani, A. Albert, Z. Beňušová, E. Eckerová, Ľ. Krupa, F. Mamedov, M. Petropavlova, Y. Shitov, I. Štekl
Klíčová slovaKeywords
KM3NeT, neutrino telescope, ultra-high-energy
KonferenceConference
39th International Cosmic Ray Conference (Geneva, Switzerland, 2025-07-14)
DOIDOI
10.22323/1.501.1018
Časopis / citaceJournal / citation
In: Proceedings of 39th International Cosmic Ray Conference — PoS(ICRC2025), Sissa Medialab, 2025, pp. 1018 · ISSN 1824-8039
RokYear
2025
JazykLanguage
eng
ZáznamyRecords
ProjektProject
LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026); Laboratoire Souterrain de Modane - účast ČRLaboratoire Souterrain de Modane – participation of the Czech Republic
CitovánoCited by
1 (INSPIRE-HEP)
2026: 1
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

A neutrino event of exceptional energy, in the hundreds of PeV regime, was detected with the KM3NeT-ARCA detector. At the time of the detection, on February 13, 2023, the ARCA detector consisted of 21 detection lines, about 10% of the total volume of the full planned detector. This ultra-high-energy event lies in an unexplored energy range where cosmic neutrinos have been predicted but never observed until now. The KM3NeT Collaboration has considered several hypotheses regarding the possible origin of this event, though no clear indication has been found yet. In this contribution, the details of the event energy and direction reconstruction, together with the investigated hypotheses on its nature, will be reported.

A neutrino event of exceptional energy, in the hundreds of PeV regime, was detected with the KM3NeT-ARCA detector. At the time of the detection, on February 13, 2023, the ARCA detector consisted of 21 detection lines, about 10% of the total volume of the full planned detector. This ultra-high-energy event lies in an unexplored energy range where cosmic neutrinos have been predicted but never observed until now. The KM3NeT Collaboration has considered several hypotheses regarding the possible origin of this event, though no clear indication has been found yet. In this contribution, the details of the event energy and direction reconstruction, together with the investigated hypotheses on its nature, will be reported.

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