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Explaining the GeV excess with exploding black holes

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arxiv 2305.13434 v2 pith:HD5CW3TR submitted 2023-05-22 astro-ph.HE hep-ph

Zachary S. C. Picker , Alexander Kusenko This is my paper · ORCID
classification astro-ph.HEhep-ph
keywords blackexcessholesagreesavoidingcollapseconstraintsdark
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abstract

Black holes may form in present-day collapse of microscopic structures of dark matter. We show that, if microstructure black holes (MSBH) with mass $m\sim 10^{13}~g$ are produced, the spectrum of gamma rays from their evaporation agrees remarkably well with the GeV excess observed by Fermi Gamma-ray Space Telescope, while still avoiding all observational constraints. We also discuss the generic requirements for MSBHs to explain the GeV excess.

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Cited by 1 Pith paper

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  1. Black Holes from Fermi Ball Collapse

    astro-ph.CO 2024-11 conditional novelty 6.0 of 10

    With a quartic scalar self-coupling, dark-sector Fermi balls saturate early and become compact enough to collapse into primordial black holes.

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