Measurements of the electron and muon inclusive cross-sections in proton-proton collisions at √s=7TeV with the ATLAS detector

Abstract

This Letter presents measurements of the differential cross-sections for inclusive electron and muon production in proton-proton collisions at a centre-of-mass energy of s=7TeV, using data collected by the ATLAS detector at the LHC. The muon cross-section is measured as a function of pT in the range 4 <2.5. In addition the electron and muon cross-sections are measured in the range 7 <2.0, excluding 1.37 <1.52. Integrated luminosities of 1.3pb-1 and 1.4pb-1 are used for the electron and muon measurements, respectively. After subtraction of the W/Z/γ* contribution, the differential cross-sections are found to be in good agreement with theoretical predictions for heavy-flavour production obtained from Fixed Order NLO calculations with NLL high-pT resummation, and to be sensitive to the effects of NLL resummation. © 2011 CERN.