Search for Dark Matter Decay in Nearby Galaxy Clusters and Galaxies with IceCube - INSPIRE

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Search for Dark Matter Decay in Nearby Galaxy Clusters and Galaxies with IceCube

IceCube

Collaboration

Jul 25, 2023

11 pages

Published in:

PoS ICRC2023 (2023) 1378

Contribution to:

- ICRC2023
, 1378

Published: Jul 25, 2023

e-Print:

2308.04833 [astro-ph.HE]

DOI:

10.22323/1.444.1378

Report number:

PoS-ICRC2023-1378

Experiments:

ICECUBE

View in:

ADS Abstract Service

reference search4 citations

Citations per year

Abstract: (SISSA)

Dark matter could decay into Standard Model particles producing neutrinos directly or indirectly. The resulting flux of neutrinos from these decays could be detectable at neutrino telescopes and would be associated with massive celestial objects where dark matter is expected to be accumulated. Recent observations of high-energy astrophysical neutrinos at IceCube might hint at a signal produced by the decay of TeV to PeV scale dark matter. This analysis searches for neutrinos from decaying dark matter in nearby galaxy clusters and galaxies. We focus on dark matter masses from 10 TeV to 1 EeV and four decay channels:

\nu\bar{\nu}

,

\tau^{+}\tau^{-}

,

W^{+}W^{-}

,

b\bar{b}

. Three galaxy clusters, seven dwarf galaxies, and the Andromeda galaxy are chosen as targets and stacked within the same source class. A well-established IceCube data sample is used, which contains 11 years of upward-going track-like events. In this contribution, we present preliminary results of the analysis.

Note:

Presented at the 38th International Cosmic Ray Conference (ICRC2023). See arXiv:2307.13047 for all IceCube contributions

galaxy: cluster
neutrino: flux
dark matter: mass
dark matter: decay
neutrino: detector
neutrino: UHE
IceCube
TeV

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Figures(6)

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IceCube-Gen2 Collaboration PoS ICRC(these proceedings) 994. Full Author List: IceCube

Collaboration R. Abbasi17
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M. Ackermann63
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J. Adams18
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S.K. Agarwalla40