Search for displaced vertexes arising from decays of new, heavy particles in 7 TeV pp collisions in ATLAS

We present the results of a search for neutralinos decaying at a significant distance from their production point into charged hadrons and a high momentum muon, forming displaced vertexes. The analysis was performed with $33 pb^{-1}$ of pp collision data collected by the ATLAS experiment at the LHC in 2010 at $sqrt{s}$= 7 TeV. The poster will show some highlights of the analysis.