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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
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Scalar fields in Cosmology: dark matter and inflation [PDF]
Journal of Physics: Conference Series, 2016 Scalar fields have been widely used in cosmology during the last three decades, but it is until now that we have been able to fully understand their role as possible major matter components for the evolution of the Universe. Here we briefly present recent studies on scalar fields that show how their intrinsic properties are translated into observables ...
L. Arturo Ureña–López
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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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Searching for Scalar Field Dark Matter with LIGO
Physical Review LettersWe report on a direct search for scalar field dark matter using data from LIGO’s third observing run. We analyze the coupling of size oscillations of the interferometer’s beam splitter and arm test masses that may be caused by scalar field dark matter.
Alexandre Göttel +6 more
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FERMIONIC AND SCALAR FIELDS AS SOURCES OF INTERACTING DARK MATTER–DARK ENERGY [PDF]
International Journal of Modern Physics D, 2011 From a variational action with nonminimal coupling with a scalar field and classical scalar and fermionic interaction, cosmological field equations can be obtained. Imposing a Friedmann–Lemaître–Robertson–Walker (FLRW) metric, the equations lead directly to a cosmological model consisting of two interacting fluids, where the scalar field fluid is ...
Lepe, Samuel +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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Oscillating scalar-field dark matter in supergravity [PDF]
Journal of High Energy Physics, 2001 We show that an oscillating scalar field in supergravity of mass of the order of $\sim$ TeV with a nonzero vacuum expectation value ($\sim 10^{10}$ GeV) can be a candidate of cold dark matter (CDM). To avoid the gravitino problem, we need a low reheating temperature after the primordial inflation.
Seto, Osamu +2 more
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Advances in High Energy Physics, 2017 We investigate matter creation processes during the reheating period of the early Universe, by using the thermodynamic of open systems. The Universe is assumed to consist of the inflationary scalar field, which, through its decay, generates relativistic ...
Juntong Su +2 more
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The continuous tower of scalar fields as a system of interacting dark matter–dark energy
Physics Letters B, 2015 This paper aims to introduce a new parameterisation for the coupling Q in interacting dark matter and dark energy models by connecting said models with the Continuous Tower of Scalar Fields model.
Paulo Santos
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interplay between black holes and ultralight dark matter: analytic solutions
Journal of High Energy Physics, 2023 Dark matter (DM) can consist of a scalar field so light that DM particles in the galactic halo are best described by classical waves. We investigate how these classical solutions are influenced by the presence of a non-rotating supermassive black hole at
Bruno Bucciotti, Enrico Trincherini
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