Search for third generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector

Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A search for pair-produced third generation scalar leptoquarks is presented, using proton-proton collisions at <jats:inline-formula> <jats:tex-math>$ \sqrt{s}=7 $</jats:tex-math> </jats:inline-formula> TeV at the LHC. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 4.7 fb<jats:sup>−1</jats:sup>. Each leptoquark is assumed to decay to a tau lepton and a <jats:italic>b</jats:italic>-quark with a branching fraction equal to 100%. No statistically significant excess above the Standard Model expectation is observed. Third generation leptoquarks are therefore excluded at 95% confidence level for masses less than 534GeV. </jats:p>