Searching for SUSY with tau-leptons at ATLAS" (by Anthony Rose)

A search for Supersymmetry (SUSY) in events with large missing transverse
momentum, jets, and at least one hadronically decaying tau lepton, with
zero or one additional light lepton (e/mu), has been performed using 4.7
fb-1 of proton-proton collision data at sqrt(s) = 7 TeV recorded with the
ATLAS detector at the Large Hadron Collider. No excess above the Standard
Model background expectation is observed and a 95 % confidence level (CL)
visible cross-section upper limit for new phenomena is set. In the
framework of gauge-mediated SUSY-breaking models (GMSB), exclusion limits
on the GMSB mass scale lambda are set at 54 TeV in the regions where the
stau is
the next-to-lightest SUSY particle (tan beta > 20). These limits provide
the
most stringent tests to date of GMSB models in a large part of the
parameter space considered.