Can baryon asymmetry be explained by a large initial value before inflation?

Autor:	Murai, Kai, Takahashi, Fuminobu, Yamada, Masaki, Yin, Wen
Rok vydání:	2023
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	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. Comment: 4 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2307.03049 Zobrazit plný text záznamu View this record from Arxiv