Search for long-lived particles using delayed jets and missing transverse momentum with proton-proton collisions at $\sqrt{s}$ = 13 TeV

A search for long-lived particles decaying to delayed jets and missing transverse momentum is presented. The analysis is performed using a data set of 137 $\textrm{fb}^{-1}$ of $\sqrt{s} = 13$ TeV proton-proton collisions recorded by the CMS experiment. Candidate signal events containing delayed jets are identified using the timing capabilities of the CMS Electromagnetic Calorimeter. The results of the search are consistent with the background prediction and are interpreted using a gauge-mediated supersymmetry breaking reference model. Masses up to 2500 and 2150 GeV are excluded for proper decay lengths of 1 m and 30 m respectively.