KM3NeT’s sensitivity to the next core-collapse supernova

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

KM3NeT’s sensitivity to the next core-collapse supernova

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

KM3NeT’s sensitivity to the next core-collapse supernova

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/LM2023063" target="_blank" >LM2023063: Podzemní laboratoř LSM - účast České republiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

39th International Cosmic Ray Conference (ICRC2025)

ISBN

—

ISSN

1824-8039

e-ISSN

—

Počet stran výsledku

11

Strana od-do

1-11

Název nakladatele

PoS - Proceedings of Science, Sissa Medialab srl

Místo vydání

Trieste

Místo konání akce

Geneva

Datum konání akce

14. 7. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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