Results 11 to 20 of about 1,630,167 (297)
Fundamental Interactions, 2007 The nature of the main constituents of the mass of the universe is one of the outstanding riddles of cosmology and astro-particle physics. Current models explaining the evolution of the universe, and measurements of the various components of its mass ...
Zacek, Viktor
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Dark Energy and Dark Matter [PDF]
Physics Letters B, 2003 It is a puzzle why the densities of dark matter and dark energy are nearly equal today when they scale so differently during the expansion of the universe. This conundrum may be solved if there is a coupling between the two dark sectors. In this paper we
A. Riotto +30 more
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Physical Review D, 2021 5 pages, 3 appendices, 7 ...
Cristina Mondino +3 more
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Dark matter and dark radiation [PDF]
Physical Review D, 2009 14 pages, 6 figures Updated equations and ...
Ackerman, Lotty +3 more
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The Identification of Dark Matter, 2000 Abstract: The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self‐
Sikivie, P., Kinney, W.
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Proceedings of the National Academy of Sciences, 2014 The evidence for the dark matter (DM) of the hot big bang cosmology is about as good as it gets in natural science. The exploration of its nature is now led by direct and indirect detection experiments, to be complemented by advances in the full range of cosmological tests, including judicious consideration of the rich phenomenology of galaxies.
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Indo-European Linguistics, 2015 The assumption of a root *√k̑u̯el ‘dark, black’ offers new possible etymologies for Arm. šaɫax, Gk. πηλός, Toch. B kwele, Hitt. kuu̯aliu-, Gk. κύλα, Lat. culex, and Lat. color, whose derivational background will be dealt with in the course of this paper.
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Modified dark matter: Relating dark energy, dark matter and baryonic matter [PDF]
International Journal of Modern Physics D, 2018 Modified dark matter (MDM) is a phenomenological model of dark matter, inspired by gravitational thermodynamics. For an accelerating universe with positive cosmological constant ([Formula: see text]), such phenomenological considerations lead to the emergence of a critical acceleration parameter related to [Formula: see text].
Edmonds, Douglas +4 more
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Radiative muon mass models and (g − 2) μ
Journal of High Energy Physics, 2021 Recent measurements of the Higgs-muon coupling are directly probing muon mass generation for the first time. We classify minimal models with a one-loop radiative mass mechanism and show that benchmark models are consistent with current experimental ...
Michael J. Baker +2 more
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Dark matter from a dark connection [PDF]
Modern Physics Letters A, 2021 In the first part of this note, we observe that a non-Riemannian piece in the affine connection (a “dark connection”) leads to an algebraically determined, conserved, symmetric 2-tensor in the Einstein field equations that is a natural dark matter candidate. The only other effect it has, is through its coupling to standard model fermions via covariant
Das, Ranit, Krishnan, Chethan
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