TY - JOUR

T1 - Dark matter dilution scenarios in the early universe

AU - Chaudhuri, Arnab

AU - Khlopov, Maxim Y.

N1 - The work of A. C. is funded by RSF Grant 19-42-02004. The research by M. K. has been supported by the grant of the Russian Science Foundation (Project No-18-1200213-P). Publisher Copyright: © 2021 World Scientific Publishing Company.

PY - 2021/12/1

Y1 - 2021/12/1

N2 - 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.

AB - 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.

KW - dark matter

KW - electroweak phase transition

KW - Elementary particles

KW - primordial black holes

UR - http://www.scopus.com/inward/record.url?scp=85121100516&partnerID=8YFLogxK

U2 - 10.1142/S0218271821400083

DO - 10.1142/S0218271821400083

M3 - Article

AN - SCOPUS:85121100516

VL - 30

JO - International Journal of Modern Physics D

JF - International Journal of Modern Physics D

SN - 0218-2718

IS - 16

M1 - 2140008

ER -