Higgs-Portal Dark Matter for GeV Gamma-Ray Excess
arXiv:1504.06944
Abstract
We present Higgs-Portal dark matter (DM) models to explain the reported Galactic Center GeV gamma-ray excess. Naive effective theories are inconsistent with direct detection constraint for the relevant parameter range. Simple extended models with dark gauge symmetries can easily accommodate the gamma-ray excess through the Higgs-Portal coupling while satisfying various constraints.
4 pages, 4 figures, proceeding of the 2nd Toyama Workshop on "Higgs as a Probe of New Physics 2015", 11-15 February 2015