TY - JOUR
T1 - The KM3NeT ultra-high-energy event
AU - KM3NeT Collaboration
AU - Bouasla, Amani Besma
AU - Attallah, Reda
AU - Adriani, O.
AU - Albert, A.
AU - Alhebsi, A. R.
AU - Alshalloudi, S.
AU - Alshamsi, M.
AU - Alves Garre, S.
AU - Ameli, F.
AU - Andre, M.
AU - Aphecetche, L.
AU - Ardid, M.
AU - Ardid, S.
AU - Aublin, J.
AU - Badaracco, F.
AU - Bailly-Salins, L.
AU - Baret, B.
AU - Bariego-Quintana, A.
AU - Barnard, M.
AU - Becherini, Y.
AU - Bendahman, M.
AU - Benfenati Gualandi, F.
AU - Benhassi, M.
AU - Benoit, D. M.
AU - Beňušová, Z.
AU - Berbee, E.
AU - Berti, E.
AU - Bertin, V.
AU - Betti, P.
AU - Biagi, S.
AU - Boettcher, M.
AU - Bonanno, D.
AU - Bondì, M.
AU - Bottai, S.
AU - Bouasla, A. B.
AU - Boumaaza, J.
AU - Bouta, M.
AU - Bouwhuis, M.
AU - Bozza, C.
AU - Bozza, R. M.
AU - Brânzaş, H.
AU - Bretaudeau, F.
AU - Breuhaus, M.
AU - Bruijn, R.
AU - Brunner, J.
AU - Bruno, R.
AU - Buis, E.
AU - Buompane, R.
AU - Burriel, I.
AU - Tully, C.
N1 - Publisher Copyright:
© Copyright owned by the author(s)
PY - 2025/12/30
Y1 - 2025/12/30
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/105029050732
UR - https://www.scopus.com/pages/publications/105029050732#tab=citedBy
U2 - 10.22323/1.501.1018
DO - 10.22323/1.501.1018
M3 - Conference article
AN - SCOPUS:105029050732
SN - 1824-8039
VL - 501
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 1018
T2 - 39th International Cosmic Ray Conference, ICRC 2025
Y2 - 15 July 2025 through 24 July 2025
ER -