Search for direct stop pair production in single lepton events at sqrt(s) = 8 TeV at ATLAS

by Ben Nachman (SLAC National Accelerator Laboratory (US))

Thursday 24 Jan 2013, 11:00 → 12:00 Europe/Zurich

4/2-011 - TH common room (CERN)

We present a search for top squark pair production in events with a single isolated electron or muon, jets, and large missing transverse energy. At least one of the jets is required to be identified as originating from a b-quark and events are required to have large transverse mass. The data sample used corresponds to an integrated luminosity of 14 fb-1 of pp collisions, collected in 2012 by the ATLAS experiment at the LHC, at a centre-of-mass energy of 8 TeV. No significant excess in data is observed above the expected standard model backgrounds. The results are interpreted in the context of models of top squark pair production where the top squarks decay either to a top quark and a neutralino or to a bottom quark and a chargino.