Primordial Black Holes Are True Vacuum Nurseries

Autor:	Hamaide, Louis, Heurtier, Lucien, Hu, Shi-Qian, Cheek, Andrew
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2024.138895
Popis:	The Hawking evaporation of primordial black holes (PBH) reheats the Universe locally, forming hot spots that survive throughout their lifetime. We propose to use the temperature profile of such hot spots to calculate the decay rate of metastable vacua in cosmology, avoiding inconsistencies inherent to the Hartle-Hawking or Unruh vacuum. We apply our formalism to the case of the electroweak vacuum stability and find that a PBH energy fraction $\beta > 7\times 10^{-80} (M/g)^{3/2}$ is ruled out for black holes with masses $0.8 g < M < 10^{15} g$. Comment: 7 pages, 3 figures. Prepared for submission to PRL
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2311.01869 Zobrazit plný text záznamu View this record from Arxiv