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Snowmass2021 Cosmic Frontier White Paper:Primordial Black Hole Dark Matter

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arxiv 2203.08967 v2 pith:EFD3FCXM submitted 2022-03-16 hep-ph astro-ph.CO

classification hep-phastro-ph.CO
keywords pbhsblackdarkfuturematterobservationalphysicsprimordial
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Primordial Black Holes (PBHs) are a viable candidate to comprise some or all of the dark matter and provide a unique window into the high-energy physics of the early universe. This white paper discusses the scientific motivation, current status, and future reach of observational searches for PBHs. Future observational facilities supported by DOE, NSF, and NASA will provide unprecedented sensitivity to PBHs. However, devoted analysis pipelines and theoretical modeling are required to fully leverage these novel data. The search for PBHs constitutes a low-cost, high-reward science case with significant impact on the high energy physics community.

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Forward citations

Cited by 3 Pith papers

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

  1. Opening up New Parameter Space for Sterile Neutrino Dark Matter

    hep-ph 2025-05 conditional novelty 8.0 of 10

    A new production channel, nu_a + nu_a -> nu_s + nu_s, mediated by a heavy scalar, can generate the observed sterile neutrino dark matter abundance independently of active-sterile mixing.

  2. Gravitational wave signatures of primordial black hole accretion during early matter domination

    hep-ph 2025-05 conditional novelty 6.0 of 10

    PBHs that form in a radiation era and accrete during an early matter era could produce a two-peak GW background detectable by LISA or BBO for asteroid-mass PBHs as all of dark matter.

  3. PBH formation and Gravitational Waves as Multi-messenger Signals of First-order Phase Transitions

    hep-ph 2026-07 conditional novelty 5.0 of 10

    False-vacuum collapse during first-order phase transitions can form PBHs and emit GWs across a broad parameter range, and MeV-scale classically conformal U(1)_{B-L} symmetry breaking has the largest region where both ...

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