2009/12/23 by Kingman Cheung, Tzu-Chiang Yuan
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1016/j.physletb.2010.01.062
published as Phys.Lett.B685:182-184,2010 · 6 pages, 1 figure
arxiv created 2009/12/23 · openalex publication_date 2010/01/29 · arxiv updated 2010/04/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/02
With the assumption that the dominant diagram in supersymmetry for the spin-independent cross section of the dark matter particle is due to Higgs boson exchange, we obtain an upper limit on the Higgs-dark-matter coupling based on the new result of the CDMSII Collaborations. Based on the assumption that the Higgs boson can kinematically decay into a pair of the dark matter particles as it is likely that the dark matter particle is rather light from the measured recoil energies, we obtain an upper limit on the invisible width of the Higgs boson. Numerically it is less than 20–120 MeV for mh≃120–180 GeV. Implications for Higgs boson search are also discussed.