Measurement of the Inclusive Electron and Muon Cross-sections in Proton-Proton Collisions at √s = 7 TeV with the ATLAS Detector

A measurement of the inclusive differential cross-sections of electron and muon production in proton-proton collisions at a centre -of-mass energy of /sqrt{s} = 7 TeV is presented. From a data sample of 1.4 pb-1 collected by the ATLAS detector at the Large Hadron Collider, we present electron and muon cross-sections as a function of transverse momentum, pT , in the range 7 < pT < 26 GeV and within pseudorapidity |eta| < 2.0, correcting for all known detector effects. In addition, muons are studied in an extended kinematic range of 4 < pT < 100 GeV and |eta| < 2.5. The measurements are found to be in good agreement with theoretical predictions for heavy flavour production obtained from Fixed Order NLO calculations with Next-to-Leading-Log large-pT resummation.