Search for supersymmetry in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ in final states with high-momentum Z bosons and missing transverse momentum

A search for physics beyond the standard model in events with highly Lorentz-boosted Z bosons and missing transverse momentum is presented. The analysed proton-proton collision data, corresponding to an integrated luminosity of $137~\mathrm{fb}^{-1}$, were recorded at $\sqrt{s}=13~\mathrm{TeV}$ by the CMS experiment. The search utilizes wide-cone jets to identify quark pairs from Z boson decays. Backgrounds from standard model processes are suppressed by requirements on the jet mass and missing transverse momentum. No significant excess in the event yield is observed beyond the number of background events expected from the standard model. An exclusion limit on the mass of gluinos - supersymmetric partners of gluons - as large as $1920~\mathrm{GeV}$ is set at $95\%$ confidence level within the framework of simplified model spectra.