Constraints on mediator-based dark matter and scalar dark energy models using s$$ \sqrt{s} $$ = 13 TeV pp collision data collected by the ATLAS detector
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2019)142
Abstract: A bstractConstraints on selected mediator-based dark matter models and a scalar dark energy model using up to 37 fb−1s$$ \sqrt{s} $$ = 13 TeV pp collision data collected by the ATLAS detector at the LHC… read more here.
Keywords: dark matter; collision data; tev collision; sqrt tev ... See more keywords
Dark energy beyond quintessence: constraints from the swampland
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2019)070
Abstract: A bstractThe string theory swampland proposes that there is no UV-completion for an effective field theory with an exact (metastable) de Sitter vacua, thereby ruling out standard ΛCDM cosmology if the conjecture is taken seriously.… read more here.
Keywords: energy beyond; quintessence; dark energy; energy ... See more keywords
Dark energy without fine tuning
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2019)044
Abstract: Abstract We present a two-field model that realises inflation and the observed density of dark energy today, whilst solving the fine-tuning problems inherent in quintessence models. One field acts as the inflaton, generically driving the… read more here.
Keywords: field; without fine; dark energy; energy ... See more keywords
An interacting new holographic dark energy in the framework of fractal cosmology
Sign Up to like & getrecommendations! Published in 2018 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-018-3454-3
Abstract: In this paper, we study an interacting holographic dark energy model in the framework of fractal cosmology. The features of fractal cosmology could pass ultraviolet divergencies and also make a better understanding of the universe… read more here.
Keywords: cosmology; model; dark energy; holographic dark ... See more keywords
Local dark energy in the Sculptor Filament of galaxies
Sign Up to like & getrecommendations! Published in 2020 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-020-03840-3
Abstract: Two dozens of different mass galaxies observed at distances less than 10 Mpc from the Local Group are organized in the elongated structure known as the Sculptor Filament. We use recent Hubble Space Telescope data… read more here.
Keywords: sculptor filament; dark energy; local dark; energy ... See more keywords
Higher-Dimensional Anisotropic Modified Holographic Ricci Dark Energy Cosmological Model in Lyra Manifold
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DOI: 10.1007/s10511-021-09686-z
Abstract: We used modified holographic Ricci dark energy to find anisotropic LRS Bianchi type I cosmological model in five-dimensions based on Lyra geometry. The exact solutions of the Einstein field equations were obtained by using hybrid… read more here.
Keywords: energy; holographic ricci; dark energy; modified holographic ... See more keywords
Dynamics of a spherically symmetric inhomogeneous coupled dark energy model with coupling term proportional to non relatvistic matter
Sign Up to like & getrecommendations! Published in 2017 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-017-2321-9
Abstract: The quasi-local scalar variables approach is applied to a spherically symmetric inhomogeneous Lemaître–Tolman–Bondi metric containing a mixture of non-relativistic cold dark matter and coupled dark energy with constant equation of state. The quasi-local coupling term… read more here.
Keywords: energy; matter; quasi local; dark energy ... See more keywords
Phase space analysis of Tsallis agegraphic dark energy
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DOI: 10.1007/s10714-021-02823-1
Abstract: Based on the generalized Tsallis entropy and holographic hypothesis, the Tsallis agegraphic dark energy (TADE) was proposed by introducing the timescale as infrared cutoff. In this paper, we analyze the evolution of the universe in… read more here.
Keywords: agegraphic dark; tsallis agegraphic; dark; model ... See more keywords
Whether Lyra’s Manifold Itself is aHidden Source of Dark Energy
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3417-4
Abstract: In the course of investigation of some interesting cosmic string universes in the five dimensional Lyra manifold it is excitingly found that the geometry itself of Lyra manifold behaves as a new source of dark… read more here.
Keywords: source dark; dark energy; lyra manifold; energy ... See more keywords
On the Mean Density of Matter in the Universe and Dark Energy
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DOI: 10.1007/s11182-017-1164-x
Abstract: On the basis of the special relativity theory (SRT), the mean density of matter in the Universe is calculated with the relativistic kinetic energy of receding galaxies taken into account. Within the framework of the… read more here.
Keywords: matter universe; mean density; density; dark energy ... See more keywords
Nonlinear power spectrum in clustering and smooth dark energy models beyond the BAO scale
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Astrophysics and Astronomy"
DOI: 10.1007/s12036-019-9584-3
Abstract: We study the nonlinear effects of the clustering and smooth quintessence. We present numerical and also approximate semi-analytical expressions of nonlinear power spectrum both for clustering and smooth dark energy models beyond the Baryon Acoustic… read more here.
Keywords: dark energy; nonlinear power; energy models; power spectrum ... See more keywords