Results 131 to 140 of about 143,913 (244)

Non-minimal coupling of scalar fields in the dark sector and generalization of the top-hat collapse

open access: yesEuropean Physical Journal C: Particles and Fields
In this article we propose a new way to handle interactions between two scalar fields, in the cosmological backdrop, where one scalar field oscillates rapidly in the cosmological time scale while the other one evolves without showing any periodic ...
Priyanka Saha   +2 more
doaj   +1 more source

Dark Matter and Baryon Asymmetry from the very Dawn of Universe

open access: yesEPJ Web of Conferences, 2018
We discuss a possibility of universally producing dark matter and baryon charge at inflation. For this purpose, we introduce a complex scalar field with the mass exceeding the Hubble rate during the last e-folds of inflation.
Ramazanov Sabir
doaj   +1 more source

Dark Matter from self-dual gauge/Higgs dynamics

open access: yesJournal of High Energy Physics, 2019
We show that a new gauge group with one new scalar leads to automatically stable Dark Matter candidates. We consider theories where the Higgs phase is dual to the confined phase: it is known that SU (2) gauge theories with a scalar doublet (like the ...
Dario Buttazzo   +4 more
doaj   +1 more source

Scalar field dark matter with two components: Combined approach from particle physics and cosmology [PDF]

open access: green, 2022
Eréndira Gutiérrez-Luna   +7 more
openalex   +1 more source

Quantum instability of the Cauchy horizon in a charged de-Sitter spacetime with dark matter

open access: yesEuropean Physical Journal C: Particles and Fields
The strong cosmic censorship conjecture (SCCC) requires that spacetime cannot be extended beyond the Cauchy horizon. This ensures the predictability of spacetime.
Shun Jiang, Jie Jiang
doaj   +1 more source

Home - About - Disclaimer - Privacy