2020/11/30 by Nicolás Bernal, Óscar Zapata · 76 citations
Physics and Astronomy · #Astronomy #Astrophysics #Binary black hole #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Gravitation #Gravitational wave #Hawking radiation #Particle physics #Physics #Primordial black hole #Universe #hep-ph
paper · pdf · doi:10.1016/j.physletb.2021.136129
published in Physics Letters B 815, 136129 (Elsevier BV) · 5 pages, 2 figures. V2: matches accepted version in PLB
openalex created_date 2020/11/09 · arxiv created 2021/02/04 · openalex publication_date 2021/02/06 · arxiv updated 2021/02/10 · openalex updated_date 2026/08/05
Dark matter (DM) interacting only gravitationally with the standard model could have been produced in the early universe by Hawking evaporation of primordial black holes (PBH). This mechanism is viable in a large range of DM mass, spanning up to the Planck scale. However, DM is also unavoidably produced by the irreducible UV gravitational freeze-in. We show that the latter mechanism sets strong bounds, excluding large regions of the parameter space favored by PBH production.