Simplified dark matter models with a spin-2 mediator at the LHC

International audienceFollowing the LHC DM working group proposal, a simplified Dark Matter model approachhas been widely adopted for the interpretation of LHC Run-II searches. In particularmodels with s-channel spin-1 and spin-0 mediators have been studied in detail. Inthis talk I will discuss the LHC phenomenology of the less explored spin-2 mediatorscenario, presenting constraints on the model parameter space from the current 13 TeVLHC data. I will show the complementarity among different searches, in particularmonojet and multijet plus missing energy searches and resonance searches. Foruniversal couplings of the mediator to standard model particles, dilepton (anddiphoton) resonance searches provide the strongest constraints for mediator massesabove 200 (500) GeV. Missing energy searches are competitive only in the low-massregion. They can, however, be more important in non-universal coupling scenariosand/or when the coupling of the mediator to dark matter is much larger than itscouplings to SM particles