Limits on dark matter annihilation in prompt cusps from the isotropic gamma-ray background
Jul 24, 2023
13 pages
Published in:
- Phys.Rev.D 109 (2024) 8, 083512
- Published: Apr 11, 2024
e-Print:
- 2307.13023 [astro-ph.HE]
DOI:
- 10.1103/PhysRevD.109.083512 (publication)
View in:
Citations per year
Abstract: (APS)
Recent studies indicate that thermally produced dark matter will form highly concentrated, low-mass cusps in the early universe that often survive until the present. While these cusps contain a small fraction of the dark matter, their high density significantly increases the expected -ray flux from dark matter annihilation, particularly in searches of large angular regions. We utilize 14 years of Fermi-LAT data to set strong constraints on dark matter annihilation through a detailed study of the isotropic -ray background, excluding with 95% confidence dark matter annihilation to final states for dark matter masses below 120 GeV.Note:
- 13 pages, 12 figures; accepted by PRD
- dark matter: annihilation
- gamma ray: background
- dark matter: mass
- gamma ray: flux
- density: high
- GeV
- GLAST
References(71)
Figures(11)
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