2013/12/10 by Elaine C. F. S. Fortes, E. C. F. S. Fortes, M. D. Tonasse
Physics and Astronomy · #Annihilation #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Geometry #Higgs boson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Pseudoscalar #Quark #Scalar (mathematics) #Standard Model (mathematical formulation) #hep-ph
paper · pdf · doi:10.1103/physrevd.89.016015
Version submitted and accepted for publication in PRD
arxiv created 2013/12/10 · openalex publication_date 2014/01/13 · arxiv updated 2015/06/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study an extended B\ensuremath-L model, which has in its structure four neutral scalars. In this model, a representative set of parameters enable us to conclude that one of these scalars is a promising candidate for low-mass dark matter. We introduce a Z2 symmetry, which ensures the stability of the dark matter. The dominant annihilation process will be through the s channel of the Scalar boson exchange in bb. So, this is also a Higgs-portal dark matter model, but the Higgs decay to dark matter is suppressed and meets the constraints from invisible decays of the Higgs boson. The model is also in agreement with the constraints established by the XENON100, CoGeNT, and CDMS experiments, matching the relic abundance and the cross section with the nucleon.