Search for supersymmetry in events with large missing transverse momentum and two leptons in proton-proton collisions at 7 TeV with the ATLAS detector

In 2010, the Large Hadron Collider (LHC) at CERN opened up a new regime for probing physics beyond the Standard Model. The search for various manifestations of Supersimmetry is one of the main tasks of the LHC experiments. First searches for the production of supersymmetric particles yielding large missing transverse momentum and two isolated leptons in the final state are presented. The full data sample collected in 2010 by the ATLAS experiment in LHC proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 35 pb-1, has been analyzed. Depending on model assumptions, limits on the squark mass between 450 and 690 GeV for squarks approximately degenerate in mass with gluinos have been set