W and Z Production in pp Collisions at 7 TeV with the ATLAS Experiment at the LHC

2010/10/31 by V. Martinez Outschoorn, Outschoorn, V. Martinez
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1011.0164

openalex publication_date 2010/10/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The observation of W and Z bosons and a measurement of the production cross sections in proton proton collisions at E_CM = 7 TeV are presented using data from the ATLAS experiment at the LHC. Results are based on 118 W -> lnu and 125 Z/gamma* -> ll (l=e,mu) candidate events corresponding to an integrated luminosity of about 17 nb^-1 and 225 nb^-1 respectively. The measured values of sigma_W x BR(W -> lnu) = 9.3 ± 0.9 (stat) ± 0.6 (syst) ± 1.0 (lumi) nb and sigma_Z/gamma* x BR(Z/gamma* -> ll, 66

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