2013/10/31 by T. G. Steele, Zhi-Wei Wang, D. Contreras +2
Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Electroweak interaction #Higgs boson #Light dark matter #Particle physics #Particle physics theoretical and experimental studies #Physics #Scalar (mathematics) #Scalar field dark matter #Standard Model (mathematical formulation) #Symmetry breaking #hep-ph
paper · pdf · doi:10.1103/physrevlett.112.171602
published as Phys. Rev. Lett. 112 (2014) 171602 · 5 pages one figure. v3 contains extended discussion and updated references
openalex publication_date 2014/04/30 · arxiv created 2014/05/21 · arxiv updated 2014/07/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the generation of dark matter mass via radiative electroweak symmetry breaking in an extension of the conformal standard model containing a singlet scalar field with a Higgs portal interaction. Generating the mass from a sequential process of radiative electroweak symmetry breaking followed by a conventional Higgs mechanism can account for less than 35% of the cosmological dark matter abundance for dark matter mass M(s)>80 GeV. However, in a dynamical approach where both Higgs and scalar singlet masses are generated via radiative electroweak symmetry breaking, we obtain much higher levels of dark matter abundance. At one-loop level we find abundances of 10%-100% with 106 GeV<M(s)<120 GeV. However, when the higher-order effects needed for consistency with a 125 GeV Higgs mass are estimated, the abundance becomes 10%-80% for 80 GeV<M(s)<96 GeV, representing a significant decrease in the dark matter mass. The dynamical approach also predicts a small scalar-singlet self-coupling, providing a natural explanation for the astrophysical observations that place upper bounds on dark matter self-interaction. The predictions in all three approaches are within the M(s)>80 GeV detection region of the next generation XENON experiment.