Dark matter dilution scenarios in the early universe

Autor:	Chaudhuri, Arnab, Khlopov, Maxim Yu.
Rok vydání:	2021
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.1142/S0218271821400083
Popis:	When the vacuum like energy of the Higgs potential within the standard model undergoes electroweak phase transition, an influx of entropy into the primordial plasma can lead to a significant dilution of frozen out dark matter density that was already present before the onset of the phase transition. The same effect can take place, if the early Universe was dominated by primordial black holes of small mass, evaporating before the period of Big Bang Nucleosynthesis. In this paper we calculate the dilution factor for the above mentioned scenarios. Comment: 12 pages, 2 figures. arXiv admin note: text overlap with arXiv:1711.01801, arXiv:2001.11219
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2110.15854 Zobrazit plný text záznamu View this record from Arxiv