Primordial black holes (PBHs) can form as a result of primordial scalar perturbations at small scales. This PBH formation scenario has associated gravitational wave (GW) signatures from second-order GWs induced by the primordial curvature perturbation, and from GWs produced during an early PBH dominated era. We investigate the ability of next generation GW experiments, including BBO, LISA, and CE, to probe this PBH formation scenario in a wide mass range. Measuring the stochastic GW background with GW observatories can constrain the allowed parameter space of PBHs for masses 109 – 1027 g. We also discuss possible GW sources from an unconstrained region where light PBHs (< 109 g) temporarily dominate the energy density of the universe before evaporating. Here we show how PBH formation impacts the reach of GW observatories to the primordial power spectrum and provide constraints implied by existing PBH bounds.
Kozaczuk, Jonathan, et al. "Signals of primordial black holes at gravitational wave interferometers." Physical Review. D., vol. 105, no. 12, Jun. 2022. https://doi.org/10.1103/physrevd.105.123023
Kozaczuk, Jonathan, Lin, Tongyan, and Villarama, Ethan, "Signals of primordial black holes at gravitational wave interferometers," Physical Review. D. 105, no. 12 (2022), https://doi.org/10.1103/physrevd.105.123023
@article{osti_1980117,
author = {Kozaczuk, Jonathan and Lin, Tongyan and Villarama, Ethan},
title = {Signals of primordial black holes at gravitational wave interferometers},
annote = {Primordial black holes (PBHs) can form as a result of primordial scalar perturbations at small scales. This PBH formation scenario has associated gravitational wave (GW) signatures from second-order GWs induced by the primordial curvature perturbation, and from GWs produced during an early PBH dominated era. We investigate the ability of next generation GW experiments, including BBO, LISA, and CE, to probe this PBH formation scenario in a wide mass range. Measuring the stochastic GW background with GW observatories can constrain the allowed parameter space of PBHs for masses 109 – 1027 g. We also discuss possible GW sources from an unconstrained region where light PBHs (9 g) temporarily dominate the energy density of the universe before evaporating. Here we show how PBH formation impacts the reach of GW observatories to the primordial power spectrum and provide constraints implied by existing PBH bounds.},
doi = {10.1103/physrevd.105.123023},
url = {https://www.osti.gov/biblio/1980117},
journal = {Physical Review. D.},
issn = {ISSN 2470-0010},
number = {12},
volume = {105},
place = {United States},
publisher = {American Physical Society (APS)},
year = {2022},
month = {06}}
Badurina, Leonardo; Buchmueller, Oliver; Ellis, John
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 380, Issue 2216https://doi.org/10.1098/rsta.2021.0060