  We investigate simplified models of dark matter with scalar mediators at
hadron colliders using the final state topology with 2 jets and missing energy.
These models can arise in a wide variety of BSM scenarios including the
possibility of the mediator mixing with the Higgs. Our aim is first to
determine the projected reach of the LHC and the future circular hadron
collider for excluding such models. Secondly, we use the kinematic
distributions to extract information on mediator masses. At the 13 TeV LHC we
can probe mediator masses up to 750 GeV, and at a 100 TeV collider the reach is
increased to 2.5 TeV mediators. We also explain how individual models with
different values of mediator masses can be differentiated from each other.
