Indirect Search for Dark Matter with the KM3NeT Neutrino Telescope

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F24%3A00389334" target="_blank" >RIV/68407700:21670/24:00389334 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.22323/1.444.1377" target="_blank" >https://doi.org/10.22323/1.444.1377</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.444.1377" target="_blank" >10.22323/1.444.1377</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Indirect Search for Dark Matter with the KM3NeT Neutrino Telescope

Popis výsledku v původním jazyce

Neutrino telescopes aim to detect dark matter indirectly by observing the neutrinos produced by pair-annihilations or decays of weakly interacting massive particles (WIMPs). A signal excess of neutrinos resulting from the pair-annihilation of WIMPs can be detected in regions where large amounts of dark matter might accumulate. One possible source is the Sun, where WIMPs are expected to accumulate due to their scatterings in the dense core of the star. The dark matter halo of the Milky Way is another possible close dark matter container. The KM3NeT observatory is composed of two undersea Cherenkov neutrino telescopes (ORCA and ARCA) located in two sites in the Mediterranean Sea, offshore of France and Italy. The two detector configurations are optimised for the detection of neutrinos of different energies, which allows the search for WIMPs in a wide mass range, from the GeV to the TeV scale. In this contribution, searches for WIMP annihilations in the Galactic Centre and the Sun are presented. An unbinned likelihood method is used to discriminate the signal from the background in a 300-day livetime sample of the ARCA detector, and a 543-day sample of the ORCA detector. The limits on the velocity-averaged pair-annihilation cross section of WIMPs are computed for five different primary annihilation channels. For the ORCA analysis, the limits on the spin-dependent and spin-independent scattering cross sections are given for three annihilation channels.

Název v anglickém jazyce

Indirect Search for Dark Matter with the KM3NeT Neutrino Telescope

Popis výsledku anglicky

Neutrino telescopes aim to detect dark matter indirectly by observing the neutrinos produced by pair-annihilations or decays of weakly interacting massive particles (WIMPs). A signal excess of neutrinos resulting from the pair-annihilation of WIMPs can be detected in regions where large amounts of dark matter might accumulate. One possible source is the Sun, where WIMPs are expected to accumulate due to their scatterings in the dense core of the star. The dark matter halo of the Milky Way is another possible close dark matter container. The KM3NeT observatory is composed of two undersea Cherenkov neutrino telescopes (ORCA and ARCA) located in two sites in the Mediterranean Sea, offshore of France and Italy. The two detector configurations are optimised for the detection of neutrinos of different energies, which allows the search for WIMPs in a wide mass range, from the GeV to the TeV scale. In this contribution, searches for WIMP annihilations in the Galactic Centre and the Sun are presented. An unbinned likelihood method is used to discriminate the signal from the background in a 300-day livetime sample of the ARCA detector, and a 543-day sample of the ORCA detector. The limits on the velocity-averaged pair-annihilation cross section of WIMPs are computed for five different primary annihilation channels. For the ORCA analysis, the limits on the spin-dependent and spin-independent scattering cross sections are given for three annihilation channels.

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

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

38th International Cosmic Ray Conference (ICRC2023)

ISBN

—

ISSN

1824-8039

e-ISSN

1824-8039

Počet stran výsledku

10

Strana od-do

1-10

Název nakladatele

PoS - Proceedings of Science, Sissa Medialab srl

Místo vydání

Trieste

Místo konání akce

Nagoya

Datum konání akce

26. 7. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—