Can baryon asymmetry be explained by a large initial value before inflation?
Cosmology and Nongalactic Astrophysics
2023-07-07 v1 High Energy Physics - Phenomenology
Abstract
We show that the baryon asymmetry of the Universe cannot be explained by a large initial value before inflation because it inevitably predicts correlated baryon isocurvature perturbations that are already excluded by cosmic microwave background observations. Similar arguments can generally be applied to some models of dark matter.
Cite
@article{arxiv.2307.03049,
title = {Can baryon asymmetry be explained by a large initial value before inflation?},
author = {Kai Murai and Fuminobu Takahashi and Masaki Yamada and Wen Yin},
journal= {arXiv preprint arXiv:2307.03049},
year = {2023}
}
Comments
4 pages