| Article | |
| Report number | arXiv:2307.13633 |
| Title | How well do we know the primordial black hole abundance: The crucial role of nonlinearities when approaching the horizon |
| Related title | How Well Do We Know the Primordial Black Hole Abundance? The Crucial Role of Non-Linearities when Approaching the Horizon |
| Author(s) | De Luca, Valerio (Pennsylvania U.) ; Kehagias, Alex (Natl. Tech. U., Athens ; CERN) ; Riotto, Antonio (Geneva U.) |
| Publication | 2023-09-15 |
| Imprint | 2023-07-25 |
| Number of pages | 12 |
| Note | 12 pages, 3 figures. v2: matching published version |
| In: | Phys. Rev. D 108 (2023) 063531 |
| DOI | 10.1103/PhysRevD.108.063531 (publication) |
| Subject category | hep-th ; Particle Physics - Theory ; hep-ph ; Particle Physics - Phenomenology ; gr-qc ; General Relativity and Cosmology ; astro-ph.CO ; Astrophysics and Astronomy |
| Abstract | We discuss the non-linear corrections entering in the calculation of the primordial black hole abundance from the non-linear radiation transfer function and the determination of the true physical horizon crossing. We show that the current standard techniques to calculate the abundance of primordial black holes suffer from uncertainties and argue that the primordial black hole abundance may be much smaller than what routinely considered. This would imply, among other consequences, that the interpretation of the recent pulsar timing arrays data from scalar-induced gravitational waves may not be ruled out because of an overproduction of primordial black holes. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2023-2024 American Physical Society |
Corresponding record in: Inspire
Záznam vytvorený 2023-08-04, zmenený 2023-11-24
