Strong clustering of primordial black holes from Affleck-Dine mechanism

Abstract

Primordial black hole (PBH) is a fascinating candidate for the origin of binary merger events observed by LIGO-Virgo collaboration. The spatial distribution of PBHs at formation is an important feature to estimate the merger rate. We investigate the clustering of PBHs formed by Affleck-Dine (AD) baryogenesis, where dense baryon bubbles collapse to form PBHs. We found that formed PBHs show a strong clustering due to the stochastic dynamics of the AD field. Including the clustering, we evaluate the merger rate and isocurvature perturbations of PBHs, which show significant deviations from those without clustering.

18 pages, 7 figures

References in corpus (19)

• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• Primordial Black Holes as Dark Matter
• Cosmic microwave background limits on accreting primordial black holes
• The merger rate of primordial-black-hole binaries
• CMB bounds on disk-accreting massive Primordial Black Holes
• Gravitational Wave signatures of inflationary models from Primordial Black Hole Dark Matter
• Primordial Black Holes Confront LIGO/Virgo data: Current situation
• Constraints on the induced gravitational wave background from primordial black holes
• Testing scenarios of primordial black holes being the seeds of supermassive black holes by ultracompact minihalos and CMB $\mu$-distortions
• Solving puzzles of GW150914 by primordial black holes
• The Clustering Evolution of Primordial Black Holes
• Inhomogeneous baryogenesis, cosmic antimatter, and dark matter
• Primordial black holes as biased tracers
• Signatures of non-gaussianity in the isocurvature modes of primordial black hole dark matter
• Primordial black hole merger rates: distributions for multiple LIGO observables
• Supermassive black holes formed by direct collapse of inflationary perturbations
• The Minimum Testable Abundance of Primordial Black Holes at Future Gravitational-Wave Detectors
• Constraining the Initial Primordial Black Hole Clustering with CMB-distortion
• Angular correlation as a novel probe of supermassive primordial black holes

Cited by in corpus (5)

• Primordial black holes as a dark matter candidate in theories with supersymmetry and inflation
• Revisiting the Affleck-Dine mechanism for primordial black hole formation
• Primordial Black Hole Formation via Inverted Bubble Collapse
• Hot primordial regions with anomalous hydrogenless chemical composition
• Dynamics and merger rate of primordial black holes in a cluster