SUSY Searches at ATLAS in Multilepton Final States with Jets and Missing Transverse Energy

Results are presented from a search for supersymmetric signals in multilepton final states at ATLAS – with three or more leptons, jets, and moderate missing transverse energy in the final state. In this channel very low levels of Standard Model backgrounds are expected. In a data sample with integrated luminosity of 34 pb−1 no significant excess of multilepton events is observed. Limits are placed on parameters of the minimal supergravity framework, and in a phenomenological supersymmetric parameter space.