Search for supersymmetry in events with jets and missing transverse momentum in proton-proton collisions at 13 TeV

A search for supersymmetry is performed in all-hadronic events with large missing transverse momentum produced in proton-proton collisions at $\sqrt{s}=13$~TeV. The data sample, corresponding to an integrated luminosity of 12.9~fb$^{-1}$, was collected with the CMS detector at the CERN LHC in 2016. The data are examined in search regions of jet multiplicity, tagged bottom quark jet multiplicity, missing transverse momentum, and the scalar sum of jet transverse momenta. The observed numbers of events in all search regions are found to be consistent with the expectations from standard model processes. Exclusion limits are presented for simplified supersymmetric models of gluino pair production and direct squark-antisquark production. For a massless, weakly interacting, lightest neutralino, lower limits on the gluino mass from around 1620 to 1750~GeV are obtained, depending on the assumed gluino decay mechanism. The corresponding limit on the squark mass varies between around 780 and 1150~GeV, depending on the assumed flavor of the squark. These results extend previous limits.