Standard Model Baryon Number Violation Seeded by Black Holes
Cosmology and Nongalactic Astrophysics
2021-06-23 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
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.
Cite
@article{arxiv.2102.07408,
title = {Standard Model Baryon Number Violation Seeded by Black Holes},
author = {V. De Luca and G. Franciolini and A. Kehagias and A. Riotto},
journal= {arXiv preprint arXiv:2102.07408},
year = {2021}
}
Comments
6 pages, 2 figures. v2: matching published version