@Article{KumarNuneYada:2019:ReTeCM,
author = "Kumar, Suresh and Nunes, Rafael da Costa and Yadav, Santosh
Kumar",
affiliation = "{BITS Pilani} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {BITS Pilani}",
title = "Dark sector interaction: a remedy of the tensions between CMB and
LSS data",
journal = "European Physical Journal C",
year = "2019",
volume = "79",
number = "7",
pages = "e576",
month = "July",
abstract = "The well-known tensions on the cosmological parameters H0 and
sigma 8 within the Lambda CDM cosmology shown by the Planck-CMB
and LSS data are possibly due to the systematics in the data or
our ignorance of some new physics beyond the Lambda CDM model. In
this letter, we focus on the second possibility, and investigate a
minimal extension of the Lambda CDM model by allowing a coupling
between its dark sector components (dark energy and dark matter).
We analyze this scenario with Planck-CMB, KiDS and HST data, and
find that the H0 and sigma 8 tensions disappear. In the joint
analyses with Planck, HST and KiDS data, we find non-zero coupling
in the dark sector up to 99% CL. Thus, we find a strong
statistical support from the observational data for an interaction
in the dark sector of the Universe while solving the H0 and sigma
8 tensions simultaneously.",
doi = "10.1140/epjc/s10052-019-7087-7",
url = "http://dx.doi.org/10.1140/epjc/s10052-019-7087-7",
issn = "1434-6044",
language = "en",
targetfile = "kumar_dark.pdf",
urlaccessdate = "22 maio 2024"
}