Search for dark matter production in association with a hadronically decaying vector boson at the ATLAS experiment

	Dark matter (DM) could be produced at the LHC if it interacts weakly with the standard model (SM) particles. We present the search for DM candidates in association with a vector boson decaying hadronically based on 36.1 fb−1 data recorded with the ATLAS detector at the LHC at a center-of-mass energy of 13 TeV. In addition to this, we also present yet unexplored hypothesis of a new vector boson Z′ produced in association with DM candidates using the same data sample. No significant excess over the SM prediction is observed. Results are interpreted in terms of limits on invisible Higgs boson decays into DM particles, constraints on the parameter space of the simplified vector-mediator model, and a generic upper limit on the visible cross section for W/Z+DM production. Results of the Z′+DM search are shown in the framework of several simplified-model scenarios involving DM production in association with the Z′ boson.