Extending KM3NeT’s Point-Source Searches to Lower Energies with KM3NeT/ORCA
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00389218" target="_blank" >RIV/68407700:21670/25:00389218 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.22323/1.501.1026" target="_blank" >https://doi.org/10.22323/1.501.1026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.501.1026" target="_blank" >10.22323/1.501.1026</a>
Alternative languages
Result language
angličtina
Original language name
Extending KM3NeT’s Point-Source Searches to Lower Energies with KM3NeT/ORCA
Original language description
Neutrino telescopes play a key role in multi-messenger astrophysics, providing unique insights into the still-unclear processes in our Universe and its active sources. With the goal of shedding light on these mysteries, the KM3NeT collaboration is deploying a deep-sea Cherenkov neutrino telescope in the Mediterranean Sea. It comprises two detectors: identical in their design but differing by size and density. KM3NeT/ARCA, off the coast of Sicily, is optimised for high energies in the TeV-PeV range to observe astrophysical neutrinos. KM3NeT/ORCA, off the coast of Toulon (France), is designed to detect GeV–TeV atmospheric neutrinos to study oscillations and mass ordering, thereby also detecting low-energy astrophysical neutrinos and extending KM3NeT’s reach to sources at lower energies than those accessible to KM3NeT/ARCA. This contribution presents the expected performances for the detection of point-like sources using the data collected by KM3NeT/ORCA from February 2020 to September 2023. For the first time, KM3NeT/ORCA data are used to perform a binned likelihood analysis, improving KM3NeT’s sensitivity to softer spectra and enhancing the prospects for detecting neutrino sources across a wider energy range. The discovery potential and sensitivity of KM3NeT/ORCA to point sources for different spectral assumptions and over the full sky are reported. As a first application of this analysis, the direction of KM3-230213A, the ultra-high energy event recently observed by KM3NeT, is inspected, and unblinding results from the surrounding region are presented.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
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)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
39th International Cosmic Ray Conference (ICRC2025)
ISBN
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ISSN
1824-8039
e-ISSN
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Number of pages
11
Pages from-to
1-11
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
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