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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 titleHow 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



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 Запись создана 2023-08-04, последняя модификация 2023-11-24


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