KM3NeT’s sensitivity to the next core-collapse supernova

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00389260" target="_blank" >RIV/68407700:21670/25:00389260 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.22323/1.501.1037" target="_blank" >https://doi.org/10.22323/1.501.1037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.501.1037" target="_blank" >10.22323/1.501.1037</a>

Result language
angličtina
Original language name
KM3NeT’s sensitivity to the next core-collapse supernova
Original language description
Core-collapse supernovae (CCSNe), the collapse of supermassive stars, have a significant impact on the dynamics of galaxies but their underlying mechanism is still only partially understood. These phenomena, however, produce short and extremely intense neutrino bursts, which could be used to probe the dynamics of the CCSN cores. However, such neutrinos would be detected only for CCSNe occurring in the Milky Way or its satellite galaxies, which are expected to occur around twice per century. It is therefore necessary to maximise the detection potential of all sensitive neutrino experiments, including very-large-scale water Cherenkov detectors, primarily aimed at GeV-PeV neutrino detection. In this contribution, we present a new CCSN search using the KM3NeT neutrino detector. In this search, we consider KM3NeT’s Digital Optical Modules (DOMs) as standalone detectors for MeV-scale CCSN neutrinos. We define observables that characterize the pattern of activated photomultipliers on a single DOM, and use them to distinguish CCSN neutrinos from radioactivity and atmospheric muon backgrounds. With this search strategy, KM3NeT could currently probe the majority of CCSN candidates in the Milky Way and, once finished, would be sensitive to all potential galactic supernovae.
Czech name
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Czech description
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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
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ISSN
1824-8039
e-ISSN
—
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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