2010/09/30 by Patrick Draper, Tao Liu, Carlos E. M. Wagner +2 · 3 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #astro-ph.CO #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevlett.106.121805
published as Phys.Rev.Lett.106:121805,2011 · 4 pages, 4 figures, final version for Phys. Rev. Lett
openalex publication_date 2011/03/24 · arxiv created 2011/11/11 · arxiv updated 2011/11/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We study a limit of the nearly Peccei-Quinn-symmetric next-to-minimal supersymmetric standard model possessing novel Higgs and dark matter (DM) properties. In this scenario, there naturally coexist three light singletlike particles: a scalar, a pseudoscalar, and a singlinolike DM candidate, all with masses of order 0.1-10 GeV. The decay of a standard model-like Higgs boson to pairs of the light scalars or pseudoscalars is generically suppressed, avoiding constraints from collider searches for these channels. For a certain parameter window annihilation into the light pseudoscalar and exchange of the light scalar with nucleons allow the singlino to achieve the correct relic density and a large direct-detection cross section consistent with the DM direct-detection experiments, CoGeNT and DAMA/LIBRA, preferred region simultaneously. This parameter space is consistent with experimental constraints from LEP, the Tevatron, Υ, and flavor physics.