Search for supersymmetry using hadronic top quark tagging in 13 TeV pp collisions

A search is presented for supersymmetry in all-hadronic events with missing transverse momentum and tagged top quarks. The data sample was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$ of proton-proton collisions at a center-of-mass energy of $13\,\mathrm{TeV}$. Search regions are defined using the multiplicity of bottom and top quark candidates, the presence of an imbalance in transverse momentum, and the hadronic energy in the event. With no statistically significant excess of events observed beyond the expected contributions from the standard model, we set exclusion limits at the $95\%$ confidence level on the masses of new particles in the context of simplified models of direct and gluino-mediated top squark production. For direct top squark production with decays to a top quark and a neutralino, top squark masses up to $1020\,\mathrm{GeV}$ and neutralino masses up to $430\,\mathrm{GeV}$ are excluded. Gluino masses up to $2040\,\mathrm{GeV}$ and neutralino masses up to $1150\,\mathrm{GeV}$ are excluded for models of gluino pair production where each gluino decays to a top-antitop quark pair and a neutralino.