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

Abstract

A search for supersymmetry is presented based on events with at least one photon, multiple jets, and large missing transverse momentum produced in proton-proton collisions at a center-of-mass energy of s√=13 TeV. The data correspond to an integrated luminosity of 35.9 fb−1 and were recorded by the CMS detector in 2016 at the LHC. The analysis characterizes signal-like events by categorizing the data into various signal regions based on the number of jets, the number of b-tagged jets, and missing transverse momentum. No significant excess of events is observed with respect to expectations from standard model processes. Limits are placed on gluino, top squark, and neutralino masses using several simplified models of pair production of supersymmetric particles with gauge-mediated supersymmetry breaking. Depending on the model and the mass of the next-to-lightest supersymmetric particle, gluino masses as large as 2120 GeV and top squark masses as large as 1230 GeV are excluded.