Results 51 to 60 of about 41,122 (294)
Pulsar timing residual induced by ultralight vector dark matter
European Physical Journal C: Particles and Fields, 2020 We study the ultralight vector dark matter with a mass around $$10^{-23}\,\mathrm {eV}$$ 10-23eV . The vector field oscillating coherently on galactic scales induces oscillations of the spacetime metric with a frequency around nHz, which is detectable by
Kimihiro Nomura, Asuka Ito, Jiro Soda
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Detectability of ultralight scalar field dark matter with gravitational-wave detectors [PDF]
Physical Review D, 2018 An ultralight scalar field is one of the dark matter candidates. If it couples with Standard Model particles, it oscillates mirrors in gravitational-wave detectors and generates detectable signals.
S. Morisaki, T. Suyama
semanticscholar +1 more source
Scalar field dark matter: behavior around black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2011 15 pages, 21 eps figures.
Cruz-Osorio, A. +2 more
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One‐parametric description for scalar field dark matter potentials [PDF]
Astronomische Nachrichten, 2021 AbstractWe study the cosmological evolution for a scalar field dark matter model, by considering a parameterization of the evolution equations that allow us to unify in a single parameter a family of potentials: quadratic (free case), trigonometric (Axion‐like case), and hyperbolic.
Cedeño, Francisco X. Linares +1 more
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Scalar fields as dark matter in spiral galaxies [PDF]
Classical and Quantum Gravity, 1999 5 pages, RevTeX, eight eps figures.
Guzmán, F. Siddhartha, Matos, Tonatiuh
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Cosmic microwave background constraints on coupled dark matter
Physics Letters B, 2015 We study CMB constraints on a scenario where a fraction of dark matter is non-minimally coupled to a massless scalar field and dark energy is in the form of a cosmological constant.
Sophie C.F. Morris, Anne M. Green
doaj +1 more source
Physics Letters B, 2016 We consider a resonant SIMP dark matter in models with two singlet complex scalar fields charged under a local dark U(1)D. After the U(1)D is broken down to a Z5 discrete subgroup, the lighter scalar field becomes a SIMP dark matter which has the ...
Soo-Min Choi, Hyun Min Lee
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Symmetron scalar fields: Modified gravity, dark matter, or both? [PDF]
Physical Review D, 2019 27 pages, 4 figures.
Burrage, Clare +3 more
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Higgs Portal Inflation with Fermionic Dark Matter
EPJ Web of Conferences, 2018 We discuss the inflationary model presented in [1], involving a gauge singlet scalar field and fermionic dark matter added to the standard model. Either the Higgs or the singlet scalar could play the role of the inflaton, and slow roll is realized ...
Aravind Aditya +2 more
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The inflaton portal to dark matter
Journal of High Energy Physics, 2017 We consider the possibility that the inflaton is part of the dark sector and interacts with the standard model through a portal interaction with a heavy complex scalar field in equilibrium with the standard model at high energies.
Lucien Heurtier
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