Coleman-Weinberg dynamics of ultralight scalar dark matter and GeV-scale right-handed neutrinos
Year: 2024
Type: article
Abstract: A bstract We consider an extension of the Standard Model by three singlet fermions and one singlet real scalar field. The scalar is an ultralight dark matter candidate whose abundance is set by dynamically induced misalignment from the Higgs portal. We focus on parameter space where the Coleman-Weinberg potential both fixes the dark matter relic abundance, and predicts the mass scale of right-handed neutrinos. The model prefers scalar masses in the range of 10 μ eV ≲ m ϕ ≲ 10 meV, and can be tested via direct searches for a light scalar (e.g. fifth force tests), or by searching for right-handed neutrinos in laboratory experiments.
Source: Journal of High Energy Physics
Authors: Clara Murgui, Ryan Plestid
Institution: California Institute of Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G1099677550, G1895126726, G2595738051, RESEARCH ACCOMPLISHMENTS AND GOALS OF THE THEORETICAL HIGH ENERGY PHYSICS GROUP, G638484911, G716412294, Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics, G8046890258, RESEARCH ACCOMPLISHMENTS AND GOALS OF THE THEORETICAL HIGH ENERGY PHYSICS GROUP, G86560745, G8740175630
OpenAlex ID: W4401824409