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| CMS-TOP-11-015 ; CERN-PH-EP-2012-250 | ||
| Measurement of the top-quark mass in $ \mathrm{ t \bar{t} } $ events with lepton+jets final states in pp collisions at $\sqrt{s}$ = 7 TeV | ||
| CMS Collaboration | ||
| 12 September 2012 | ||
| J. High Energy Phys. 12 (2012) 105 | ||
| Abstract: The mass of the top quark is measured using a sample of $t\bar{t}$ candidate events with one electron or muon and at least four jets in the final state, collected by CMS in pp collisions at $\sqrt{s}$ = 7 TeV at the LHC. A total of 5174 candidate events is selected from data corresponding to an integrated luminosity of 5.0 inverse femtobarns. For each event the mass is reconstructed from a kinematic fit of the decay products to a $t\bar{t}$ 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 anti-q decays, to be 173.49 $\pm$ 0.43 (stat.+JES) $\pm$ 0.98 (syst.) GeV. | ||
| Links: e-print arXiv:1209.2319 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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