Measurement of the top quark pair production cross-section based on a statistical combination of measurements of dilepton and single-lepton final states at √s = 7 TeV with the ATLAS detector

We present a measurement of the top quark pair production cross-section based on a statistical combination of measurements using dilepton final states with 0.70 fb−1 of data and single-lepton final states with 35 pb−1 of data. The measured cross-section, which is in good agreement with the Standard Model prediction, is: σtt ̄ = 176 ± 5 (stat.) +13 -10 (syst.) ± 7 (lumi.) pb.