Sensitivity of primordial black hole abundance on the reheating phase

2018/06/30 by Rong-Gen Cai, Tong-Bo Liu, Shao-Jiang Wang
Physics and Astronomy · #Abundance (ecology) #Amplitude #Astronomy #Astrophysics #Binary black hole #Biology #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Ecology #Galaxies: Formation, Evolution, Phenomena #Inflation (cosmology) #Inflection point #Monochromatic color #Optics #Physics #Primordial black hole #Sensitivity (control systems) #astro-ph.CO #gr-qc #hep-ph

paper · pdf · doi:10.1103/physrevd.98.043538

published as Phys. Rev. D 98, 043538 (2018) · v1, 8 pages, 4 figures, two columns; v2, 9 pages, 4 figures, two columns, references added, submitted to Phys.Rev.D; v3, Phys.Rev.D accepted, title changed and reheating history choices also changed according to referee's suggestion

arxiv created 2018/08/23 · openalex publication_date 2018/08/31 · arxiv updated 2018/09/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We investigate the sensitivity of the reheating history to the abundance of primordial black holes (PBHs). Contrary to the monochromatic case of the mass fraction of PBHs, the reheating era with different e-foldings and equations of state can have a substantial impact on the abundance of PBHs with an extended mass fraction. We demonstrate explicitly this reheating sensitivity in an illustrative model of single-field inflation with a quasi-inflection point, and find that both the peak position and amplitude of the extended mass fraction as well as the abundance of PBHs in DM can vary by many orders of magnitude, which adds another layer of uncertainty to the PBH scenarios as dark matter.

Citations

• Limits on the Macho content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
• ϕ2inflation at its endpoint
• Big Bang Nucleosynthesis Predictions for Precision Cosmology
• Particle dark matter: evidence, candidates and constraints
• A direct empirical proof of the existence of dark matter
• NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
• Observation of Gravitational Waves from a Binary Black Hole Merger
• Did LIGO detect dark matter?
• The clustering of massive Primordial Black Holes as Dark Matter: Measuring their mass distribution with advanced LIGO
• LIGO GRAVITATIONAL WAVE DETECTION, PRIMORDIAL BLACK HOLES, AND THE NEAR-IR COSMIC INFRARED BACKGROUND ANISOTROPIES
• A new direction for dark matter research: intermediate-mass compact halo objects
• Results from a Search for Dark Matter in the Complete LUX Exposure
• Primordial black holes from single field models of inflation
• Primordial black holes and slow-roll violation
• Quantum diffusion during inflation and primordial black holes
• English and Spanish Translation of Zwicky's (1933) The Redshift of Extragalactic Nebulae
• Planck 2015 results. XIII. Cosmological parameters