Search for supersymmetry at 13 TeV in final states with two same-sign leptons or at least three leptons and jets using "pp" collisions recorded with the ATLAS detector

A search for strongly produced supersymmetric particles decaying into final states with multiple energetic jets and either two isolated leptons ("e" or "\mu") with the same electric charge or at least three isolated leptons is presented in this proceeding. To extend its sensitivity, the search uses jets originating from b-quarks, missing transverse momentum, and other observables. The analysis uses 13.2 fb"^{-1}" of proton-proton collision data at "\sqrt{s}" = 13 TeV recorded with the ATLAS detector at the LHC. Results are interpreted in the framework of simplified models featuring gluino and squark production.