Standard Model Baryon Number Violation Seeded by Black Holes

Autor:	De Luca, V., Franciolini, G., Kehagias, A., Riotto, A.
Rok vydání:	2021
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2021.136454
Popis:	We show that black holes with a Schwarzschild radius of the order of the electroweak scale may act as seeds for the baryon number violation within the Standard model via sphaleron transitions. The corresponding rate is faster than the one in the pure vacuum and baryon number violation around black holes can take place during the evolution of the universe after the electroweak phase transition. We show however that this does not pose any threat for a pre-existing baryon asymmetry in the universe. Comment: 6 pages, 2 figures. v2: matching published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2102.07408 View this record from Arxiv