Multi-component dark matter through a radiative Higgs portal

  • Anthony DiFranzo
  • Gopolang Mohlabeng
Open Access
Regular Article - Theoretical Physics


We study a multi-component dark matter model where interactions with the Standard Model are primarily via the Higgs boson. The model contains vector-like fermions charged under SU(2) W × U(1) Y and under the dark gauge group, U(1)′. This results in two dark matter candidates. A spin-1 and a spin-\( \frac{1}{2} \) candidate, which have loop and tree-level couplings to the Higgs, respectively. We explore the resulting effect on the dark matter relic abundance, while also evaluating constraints on the Higgs invisible width and from direct detection experiments. Generally, we find that this model is highly constrained when the fermionic candidate is the predominant fraction of the dark matter relic abundance.


Beyond Standard Model Cosmology of Theories beyond the SM Higgs Physics 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2017

Authors and Affiliations

  1. 1.Theoretical Physics DepartmentFermilabBataviaU.S.A.
  2. 2.Department of Physics and AstronomyUniversity of CaliforniaIrvineU.S.A.
  3. 3.Department of Physics and AstronomyRutgers UniversityPiscatawayU.S.A.
  4. 4.Department of Physics and AstronomyUniversity of KansasLawrenceU.S.A.

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