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Ultralight Primordial Black Holes

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arxiv 2405.00546 v1 pith:JLYBUVOK submitted 2024-05-01 astro-ph.HE gr-qchep-ph

classification astro-ph.HEgr-qchep-ph
keywords evaporationblackholessignificantstopsultralightaroundcharged
verification ladder T0 review T1 audit T2 compute T3 formal

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The fate of ultralight black holes depends on whether or not evaporation stops at or around the Planck scale. If evaporation stops, the general expectation is that a population of Planck-scale will be left over, possibly including a significant fraction of electrically charged relics. If evaporation does not stop, a runaway "explosion" would occur, with significant and potentially detectable high-energy emission. Here, I review both possibilities, with an emphasis on current status and future detection prospects.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Comprehensively Constraining Ultra-Light Primordial Black Holes Through Relic Formation and Early Mergers

    astro-ph.CO 2025-06 conditional novelty 6.0 of 10

    Ultra-light primordial black holes that evaporate before Big Bang nucleosynthesis can still be probed through Planck-mass relics and early binary mergers, leaving a narrow window where relics make up all dark matter.

  2. Picolensing as a Probe of Primordial Black Hole Dark Matter

    astro-ph.HE 2024-11 conditional novelty 5.0 of 10

    Asteroid-mass primordial black hole dark matter could be probed by picolensing of gamma-ray bursts, but only with detector separations of at least Earth-L2 distance once realistic GRB size uncertainties are included.

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