Comparing Constraints from Dark Matter Studies to Invisible Higgs Searches at CMS

Evidence for dark matter constitutes a strong motivation for searches for physics beyond the Standard Model (BSM). Current dark matter experiments strongly constrain the regions of parameter space in which dark matter particles might reside. These constraints guide searches for dark matter through production channels at collider experiments, e.g. at the Large Hadron Collider (LHC). Using MadDM and MadGraph software, we conduct computational analyses on a simple Higgs portal model, in which a Standard Model (SM) Higgs boson decays to two scalar dark matter particles. We synthesize existing experimental constraints, from relic density and direct detection data, with estimates of the Higgs to invisible decay branching ratios at the LHC. We find a region of dark matter particle mass and Yukawa coupling values which may fall within the future plans for the detection capability of the HL-LHC.