Measurement of the top quark mass using proton-proton data at √s=7 and 8 TeV
By V. Khachatryan, M. Besançon, F. Couderc, Marcus Dejardin, D. Denegri, B. Fabbro, J. Faure, C. Favaro, F. Ferri, S. Ganjour and 86 more. 2016
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A new set of measurements of the top quark mass are presented, based on the proton-proton data recorded by the CMS experiment at the LHC at sqrt(s) = 8 TeV corresponding to a luminosity of 19.7 inverse femtobarns. The top quark mass is measured using the lepton+jets, all-jets and dilepton decay channels, giving values of 172.35 +/- 0.16 (stat) +/- 0.48 (syst) GeV, 172.32 +/- 0.25 (stat) +/- 0.59 (syst) GeV, and 172.82 +/- 0.19 (stat) +/- 1.22 (syst) GeV, respectively. When combined with the published CMS results at sqrt(s) = 7 TeV, they provide a top quark mass measurement of 172.44+/- 0.13 (stat) +/- 0.47 (syst) GeV. The top quark mass is also studied as a function of the event kinematical properties in the lepton+jets decay channel. No indications of a kinematic bias are observed and the collision data are consistent with a range of predictions from current theoretical models of ttbar production.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/de1c0d74eff9178e2be440b7b6618cb7a6736f5e
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In Nuclear and High Energy Physics
Citations in the corpus
- Update of the global electroweak fit and constraints on two-Higgs-doublet models (2018, methodology): “Among these are the first determination of the W boson mass at the LHC by the ATLAS collaboration [23], new combined results of the top quark mass by the LHC experiments [14, 20], a new combination of measurements of the effective leptonic electroweak mixing angles from the Tevatron experiments [24]”