Measurement of the top-quark mass in t[overline t] events with lepton+jets final states in pp collisions at √s = 7 TeV
Name
10.1007%2FJHEP12(2012)105.pdf
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812.74 KB
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Author(s)
CMS Collaboration
Apyan, Aram
Bauer, Gerry P
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Dutta, Valentina
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Date Issued
December 2012
Journal
Journal of High Energy Physics
Publisher
Springer Nature
Citation
Chatrchyan, S.et al. “Measurement of the top-quark mass in t[overline t] events with lepton+jets final states in pp collisions at √s = 7 TeV.” Journal of High Energy Physics 2012, 12 (December 2012): 105 © 2012 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
The mass of the top quark is measured using a sample of t̄t 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 t̄t hypothesis. The top-quark mass is determined simultaneously with the jet energy scale (JES), constrained by the known mass of the W boson in q̄q decays, to be 173.49 ± 0.43 (stat. + JES) ±0.98 (syst.) GeV. © 2012 CERN for the benefit of the CMS collaboration.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Attribution 4.0 International (CC BY 4.0)
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DOI of Published Version
https://doi.org/10.1007/JHEP12(2012)105
