Common origin of warm dark matter and dark radiation
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2020/12/024
Abstract: We consider a cosmological scenario where a relativistic particle and a stable massive particle are simultaneously produced from the decay of a late-decaying particle after Big-Bang Nucleosynthesis but before matter-radiation equality. The relativistic and massive… read more here.
Keywords: common origin; cosmology; matter; dark ... See more keywords
Systematic study of background cosmology in unitary Poincaré gauge theories with application to emergent dark radiation and H0 tension
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.024048
Abstract: We propose a one-parameter extension to $\Lambda$CDM, expected to strongly affect cosmological tensions. An effective dark radiation component in the early universe redshifts away as hot dark matter, then quintessence, tracking the dominant equation-of-state parameter… read more here.
Keywords: dark radiation; cosmology; gauge; systematic study ... See more keywords
Two Sides of the Same Coin: Sterile Neutrinos and Dark Radiation, Status and Perspectives
Sign Up to like & getrecommendations! Published in 2022 at "Universe"
DOI: 10.3390/universe8030175
Abstract: The presence of light sterile neutrinos is one of the unanswered questions of particle physics. The cosmological counterpart is represented by dark radiation, i.e., any form of radiation present in the early Universe besides photons… read more here.
Keywords: two sides; dark radiation; physics; status ... See more keywords