Search for new physics in the all-hadronic final state with the MT2 variable

A search for new physics is performed using events with jets and a large transverse momentum imbalance, as measured through the $M_{T2}$ variable. The results are based on a sample of proton-proton collisions collected in 2016 at a center-of-mass energy of 13 TeV with the CMS detector and corresponding to an integrated luminosity of $35.9~\mathrm{fb}^{-1}$. No excess above the standard model background is observed. The results are interpreted as limits on the masses of potential new particles in a variety of simplified models of R-parity conserving supersymmetry. Depending on the details of the model, $95\%$ CL lower limits on the gluino and light-flavor squark masses are placed up to $2025$ and $1550~\mathrm{GeV}$, respectively. In the case of top (bottom) squarks, the mass limits are as high as $1070~(1175)~\mathrm{GeV}$.