2017/07/31 by Qian-Fei Xiang, Xiao-Jun Bi, Peng-Fei Yin +2 · 30 citations
Physics and Astronomy · #Boson #Collider #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Electron #Electroweak interaction #Higgs boson #Higgs sector #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Positron #Standard Model (mathematical formulation) #Yukawa potential #hep-ph
paper · pdf · doi:10.1103/physrevd.97.055004
published in Physical review. D/Physical review. D. 97(5) (American Physical Society) · 30 pages, 14 figures; minor revisions to match the published version
openalex created_date 2017/07/21 · openalex publication_date 2018/03/06 · arxiv created 2018/03/07 · arxiv updated 2018/03/08 · openalex updated_date 2026/08/06
We study the impact of fermionic dark matter (DM) on projected Higgs precision measurements at the Circular Electron Positron Collider (CEPC), including the one-loop effects on the e+e^\ensuremath-\ensuremath→Zh cross section and the Higgs boson diphoton decay, as well as the tree-level effects on the Higgs boson invisible decay. As illuminating examples, we discuss two UV-complete DM models, whose dark sector contains electroweak multiplets that interact with the Higgs boson via Yukawa couplings. The CEPC sensitivity to these models and current constraints from DM detection and collider experiments are investigated. We find that there exist some parameter regions where the Higgs measurements at the CEPC will be complementary to current DM searches.