Standard

Particle Dark Matter Density and Entropy Production in the Early Universe. / Chaudhuri, Arnab; Khlopov, Maxim Yu; Porey, Shiladitya.

In: Symmetry, Vol. 14, No. 2, 271, 02.2022.

Research output: Contribution to journal › Article › peer-review

Harvard

Chaudhuri, A, Khlopov, MY & Porey, S 2022, 'Particle Dark Matter Density and Entropy Production in the Early Universe', Symmetry, vol. 14, no. 2, 271. https://doi.org/10.3390/sym14020271

APA

Chaudhuri, A., Khlopov, M. Y., & Porey, S. (2022). Particle Dark Matter Density and Entropy Production in the Early Universe. Symmetry, 14(2), [271]. https://doi.org/10.3390/sym14020271

Vancouver

Chaudhuri A, Khlopov MY, Porey S. Particle Dark Matter Density and Entropy Production in the Early Universe. Symmetry. 2022 Feb;14(2):271. doi: 10.3390/sym14020271

Author

Chaudhuri, Arnab ; Khlopov, Maxim Yu ; Porey, Shiladitya. / Particle Dark Matter Density and Entropy Production in the Early Universe. In: Symmetry. 2022 ; Vol. 14, No. 2.

BibTeX

@article{eef6c0fcd6cd408198a781d6af0b34c6,
title = "Particle Dark Matter Density and Entropy Production in the Early Universe",
abstract = "Dark Matter (DM) density is reduced if entropy production takes place after DM particles abundance is frozen out in the early universe. We study a possibility of such reduction due to entropy production in the electroweak phase transition (EWPT).We compare scenarios of entropy production in the standard model (SM) and its simplest extension, the two-Higgs doublet model (2HDM). Assuming the EWPT is of second order in the SM scenario and the first order in the 2HDM, we calculate the entropy release in these scenarios and the corresponding dilution of preexisting DM density in the early universe. We find the effect of dilution in EWPT significant for confrontation with observations of any form of possible DM (including primordial black holes (PBHs)), which is frozen out, decoupled, frozen in, or formed before EWPT.",
keywords = "Dark matter, Electroweak phase transition, Entropy",
author = "Arnab Chaudhuri and Khlopov, {Maxim Yu} and Shiladitya Porey",
note = "Funding Information: Funding: The work of S.P. and A.C. is funded by RSF Grant 19-42-02004. The research by M.K. was supported by the Ministry of Science and Higher Education of the Russian Federation under Project “Fundamental problems of cosmic rays and dark matter”, No. 0723-2020-0040. Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2022",
month = feb,
doi = "10.3390/sym14020271",
language = "English",
volume = "14",
journal = "Symmetry",
issn = "2073-8994",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "2",

}

RIS

TY - JOUR

T1 - Particle Dark Matter Density and Entropy Production in the Early Universe

AU - Chaudhuri, Arnab

AU - Khlopov, Maxim Yu

AU - Porey, Shiladitya

N1 - Funding Information: Funding: The work of S.P. and A.C. is funded by RSF Grant 19-42-02004. The research by M.K. was supported by the Ministry of Science and Higher Education of the Russian Federation under Project “Fundamental problems of cosmic rays and dark matter”, No. 0723-2020-0040. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2022/2

Y1 - 2022/2

N2 - Dark Matter (DM) density is reduced if entropy production takes place after DM particles abundance is frozen out in the early universe. We study a possibility of such reduction due to entropy production in the electroweak phase transition (EWPT).We compare scenarios of entropy production in the standard model (SM) and its simplest extension, the two-Higgs doublet model (2HDM). Assuming the EWPT is of second order in the SM scenario and the first order in the 2HDM, we calculate the entropy release in these scenarios and the corresponding dilution of preexisting DM density in the early universe. We find the effect of dilution in EWPT significant for confrontation with observations of any form of possible DM (including primordial black holes (PBHs)), which is frozen out, decoupled, frozen in, or formed before EWPT.

AB - Dark Matter (DM) density is reduced if entropy production takes place after DM particles abundance is frozen out in the early universe. We study a possibility of such reduction due to entropy production in the electroweak phase transition (EWPT).We compare scenarios of entropy production in the standard model (SM) and its simplest extension, the two-Higgs doublet model (2HDM). Assuming the EWPT is of second order in the SM scenario and the first order in the 2HDM, we calculate the entropy release in these scenarios and the corresponding dilution of preexisting DM density in the early universe. We find the effect of dilution in EWPT significant for confrontation with observations of any form of possible DM (including primordial black holes (PBHs)), which is frozen out, decoupled, frozen in, or formed before EWPT.

KW - Dark matter

KW - Electroweak phase transition

KW - Entropy

UR - http://www.scopus.com/inward/record.url?scp=85124468260&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/e7861f2d-6c01-3b4b-b520-5441a998c3e4/

U2 - 10.3390/sym14020271

DO - 10.3390/sym14020271

M3 - Article

AN - SCOPUS:85124468260

VL - 14

JO - Symmetry

JF - Symmetry

SN - 2073-8994

IS - 2

M1 - 271

ER -

ID: 35550829