2012/12/21 by Y. Bai, Yang Bai, V. Barger +3 · 34 citations
Physics and Astronomy · #Astrophysics #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Fermi Gamma-ray Space Telescope #Higgs boson #Large Hadron Collider #Line (geometry) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #astro-ph.HE #hep-ph
paper · pdf · doi:10.1103/physrevd.88.015008
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 88(1) (American Physical Society) · 6 pages, 4 figures
arxiv created 2012/12/21 · openalex publication_date 2013/07/08 · arxiv updated 2013/07/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study a two-Higgs-doublet model augmented by a scalar dark matter particle that provides an excellent fit to the LHC Higgs data and the Fermi-LAT 135 GeV line. The heavy CP-even Higgs boson, which predominantly mediates annihilation and scattering, must have a coupling to weak gauge bosons at or below percent level to suppress the continuum gamma-ray spectrum below the limit from the Fermi-LAT data and the antiproton spectrum constrained by the PAMELA data. Discovering or excluding this CP-even Higgs boson at the LHC with a mass between 265 and 280 GeV is a crucial test of this scenario.