Search for a cosmic point-like neutrino source from the direction of the ultra-high-energy event KM3-230213A

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00389193" target="_blank" >RIV/68407700:21670/25:00389193 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.22323/1.501.1110" target="_blank" >https://doi.org/10.22323/1.501.1110</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.501.1110" target="_blank" >10.22323/1.501.1110</a>

Result language
angličtina
Original language name
Search for a cosmic point-like neutrino source from the direction of the ultra-high-energy event KM3-230213A
Original language description
On February 13, 2023, the KM3NeT/ARCA neutrino telescope detected an ultra-high-energy neutrino event, KM3-230213A, with an estimated energy of approximately 220 PeV - the most energetic neutrino ever observed. This unprecedented event marks a significant milestone in the field of astroparticle physics, offering new insights into the potential sources of these extreme astrophysical phenomena. In this work, we present a follow-up analysis aimed at identifying a potential cosmic point-like neutrino source associated with KM3-230213A. We perform a dedicated search for a cluster of neutrino events in the direction of KM3-230213A using data from KM3NeT/ARCA, KM3NeT/ORCA, ANTARES and IceCube. In order to assess the potential spatial clustering of neutrino events around KM3-230213A, we employ either an ON/OFF technique or a maximum-likelihood method. This contribution presents the methodology, the datasets used, the event selection criteria, and the statistical methods applied. We discuss the results in the context of multi-messenger astrophysics, highlighting their implications for the origin of the ultra-high-energy neutrino KM3-230213A.
Czech name
—
Czech description
—

Project
<a href="/en/project/LM2023063" target="_blank" >LM2023063: Laboratoire Souterrain de Modane – participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
39th International Cosmic Ray Conference (ICRC2025)
ISBN
—
ISSN
1824-8039
e-ISSN
—
Number of pages
13
Pages from-to
1-13
Publisher name
PoS - Proceedings of Science, Sissa Medialab srl
Place of publication
Trieste
Event location
Geneva
Event date
Jul 14, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

Similar results(10)