Results 101 to 110 of about 143,913 (244)

Scalar field fluctuations and the production of dark matter

Journal of Cosmology and Astroparticle Physics
Abstract One of the simplest possible candidates for dark matter is a stable scalar singlet beyond the Standard Model. If its mass is below the Hubble scale during inflation, long-wavelength modes of this scalar will be excited during inflation, and their subsequent evolution may lead to the correct relic density of dark matter.
Marcos A. G. García, Wenqi Ke, Yann Mambrini, Keith A. Olive, Sarunas Verner   +4 more
openalex   +3 more sources

Unified Dark Energy-Dark Matter model with Inverse Quintessence

, 2013
We consider a model where both dark energy and dark matter originate from the coupling of a scalar field with a non-conventional kinetic term to, both, a metric measure and a non-metric measure.
Ansoldi, Stefano, Guendelman, Eduardo I.
core   +1 more source

Connecting low scale seesaw for neutrino mass to inelastic sub-GeV dark matter with Abelian gauge symmetry

Nuclear Physics B, 2021
Motivated by the recently reported excess of electron recoil events by the XENON1T experiment, we propose low scale seesaw scenarios for light neutrino masses within U(1)X gauge extension of the standard model that also predicts stable as well as long ...
Debasish Borah, Satyabrata Mahapatra, Narendra Sahu   +2 more
doaj   +1 more source

Two-scalar-field model for the interaction of dark energy and dark matter [PDF]

Physical Review D, 2012
Version to match the one published in Physical Review D, 8 pages, 11 ...
Pedro Carrilho, Jorge Páramos, Orfeu Bertolami   +2 more
openaire   +3 more sources

Scalar dark matter induced oscillation of a permanent-magnet field

Physical Review D, 2023
9 pages, 1 ...
I. M. Bloch, D. Budker, V. V. Flambaum, I. B. Samsonov, A. O. Sushkov, O. Tretiak   +5 more
openaire   +5 more sources

Three fluid cosmological model using Lie and Noether symmetries

, 2011
We employ a three fluid model in order to construct a cosmological model in the Friedmann Robertson Walker flat spacetime, which contains three types of matter dark energy, dark matter and a perfect fluid with a linear equation of state.
Paliathanasis, Andronikos, Tsamparlis, Michael   +1 more
core   +1 more source

Baryogenesis via dark matter-induced symmetry breaking in the early Universe

Physics Letters B, 2017
We put forward a new proposal for generating the baryon asymmetry of the universe by making use of the dynamics of a U(1) scalar field coupled to dark matter.
Jeremy Sakstein, Mark Trodden
doaj   +1 more source

Sub-horizon Perturbation Behavior in Extended Quintessence

, 2002
In the general context of scalar-tensor theories, we consider a model in which a scalar field coupled to the Ricci scalar in the gravitational sector of the Lagrangian, is also playing the role of an ``Extended Quintessence'' field, dominating the energy
Amendola, Arbey, Baccigalupi, Bartolo, Borriello, C. Baccigalupi, Carroll, Chiba, Chiba, Esposito-Farese, F. Perrotta, Faraoni, Flores, Guzman, Hu, Lokas, Matos, Moore, Padmanabhan, Perlmutter, Perrotta, Perrotta, Riazuelo, Riazuelo, Riess, Riess, Torres, Uzan, Wetterich   +28 more
core   +2 more sources

Neutrino masses and mixed dark matter from doublet and singlet scalars

Journal of High Energy Physics
We consider the extension of the Standard Model with an inert scalar doublet, three right-handed neutrinos, and singlet scalar fields, φ and S. In this model, neutrino masses are zero in the limit of the unbroken Z 4 discrete symmetry.
Jongkuk Kim, Seong-Sik Kim, Hyun Min Lee, Rojalin Padhan   +3 more
doaj   +1 more source

Cosmological Constraints on Bose-Einstein-Condensed Scalar Field Dark Matter [PDF]

, 2013
Despite the great successes of the cold dark matter (CDM) model in explaining a wide range of observations of the global evolution and the formation of galaxies and large-scale structure in the Universe, the origin and microscopic nature of dark matter ...
Bohua Li, T. Rindler-Daller, P. Shapiro
semanticscholar   +1 more source