CMS CollaborationCiftciR.2019-10-272019-10-2720121126-67081126-6708https://doi.org/10.1007/JHEP12(2012)105https://hdl.handle.net/11454/24760The mass of the top quark is measured using a sample of t¯t candidate events with one electron or muon and at least four jets in the final state, collected by CMS in pp collisions at ?s =7 TeV at the LHC. A total of 5174 candidate events is selected from data corresponding to an integrated luminosity of 5.0 fb-1. For each event the mass is reconstructed from a kinematic fit of the decay products to a t¯t hypothesis. The top-quark mass is determined simultaneously with the jet energy scale (JES), constrained by the known mass of the W boson in q¯q decays, to be 173.49 ± 0.43 (stat. + JES) ±0.98 (syst.) GeV. © 2012 CERN for the benefit of the CMS collaboration.en10.1007/JHEP12(2012)105info:eu-repo/semantics/openAccessHadron-Hadron ScatteringArticle201212N/A