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X-rays constraints on sub-GeV Dark Matter

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arxiv 2309.10043 v2 pith:LAXONEHC submitted 2023-09-18 hep-ph astro-ph.COastro-ph.HE

Jordan Koechler This is my paper · ORCID
classification hep-phastro-ph.COastro-ph.HE
keywords constraintsdarkmatterrangex-raysambientannihilatingcompton
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We present updated constraints on 'light' Dark Matter (DM) particles with masses between 1 MeV and 5 GeV. In this range, we can expect DM-produced $e^\pm$ pairs to up-scatter low-energy ambient photons in the Milky Way via the Inverse Compton process, and produce a flux of X-rays that can be probed by a range of space observatories. Using diffuse X-ray data from XMM-Newton, INTEGRAL, NuSTAR and Suzaku, we compute the strongest constraints to date on annihilating DM for 200 MeV $< m_{\rm DM} <$ 5 GeV and decaying DM for 100 MeV $< m_{\rm DM} <$ 5 GeV.

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Cited by 3 Pith papers

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