Probing the dark matter density evolution law with large scale structures

Kamal Bora; R. F. L. Holanda; Shantanu Desai

doi:10.1140/epjc/s10052-021-09421-0

2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2021) 81: 596
https://doi.org/10.1140/epjc/s10052-021-09421-0

Regular Article - Theoretical Physics

Probing the dark matter density evolution law with large scale structures

Kamal Bora¹^a, R. F. L. Holanda²^,3^,4 and Shantanu Desai¹

¹ Department of Physics, Indian Institute of Technology, Hyderabad, 502285, Kandi, Telangana, India
² Departamento de Física, Universidade Federal do Rio Grande do Norte, 59072-970, Natal, Rio Grande do Norte, Brazil
³ Departamento de Física, Universidade Federal de Campina Grande, 58429-900, Campina Grande, PB, Brazil
⁴ Departamento de Física, Universidade Federal de Sergipe, 49100-000, Aracaju, SE, Brazil

^a ph18resch11003@iith.ac.in

Received: 6 May 2021
Accepted: 4 July 2021
Published online: 9 July 2021

Abstract

We propose a new method to explore a possible departure from the standard time evolution law for the dark matter density. We looked for a violation of this law by using a deformed evolution law, given by $ρ_{c} (z) \propto {(1 + z)}^{3 + ϵ}$ $\rho _c(z) \propto (1+z)^{3+\epsilon }$ , and then constrain $ϵ$ $\epsilon$ . The dataset used for this purpose consists of Strong Gravitational Lensing data obtained from SLOAN Lens ACS, BOSS Emission-line Lens Survey, Strong Legacy Survey SL2S, and SLACS; along with galaxy cluster X-ray gas mass fraction measurements obtained using the Chandra Telescope. Our analyses show that $ϵ$ $\epsilon$ is consistent with zero within 1 $σ$ $\sigma$ c.l., but the current dataset cannot rule out with high confidence level interacting models of dark matter and dark energy.

© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.