Measurements of W and Z boson production in pp collisions at √s = 5.02  TeV with the ATLAS detector

Measurements of fiducial integrated and differential cross sections for inclusive W⁺, W⁻ and Z boson production are reported. They are based on 25.0±0.5pb⁻¹ of pp collision data at √s = 5.02 TeV collected with the ATLAS detector at the CERN Large Hadron Collider. Electron and muon decay channels are analysed, and the combined W⁺, W⁻ and Z integrated cross sections are found to be σ_W+=2266±9 (stat)±29 (syst)±43 (lumi) pb, σ_W-=1401±7 (stat)±18 (syst)±27 (lumi) pb, and σ_Z=374.5±3.4 (stat)±3.6 (syst)±7.0 (lumi) pb, in good agreement with next-to-next-to-leading-order QCD cross-section calculations. These measurements serve as references for Pb+Pb interactions at the LHC at √sNN = 5.02 TeV.