Measurement of the top-quark mass in all-jets t[bar over t] events in pp collisions at √s =7 TeV
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Chatrchyan-2014-Measurement of the top-quark mass.pdf
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Author(s)
Apyan, Aram
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Kim, Y.
Klute, Markus
Lai, Yue Shi
Date Issued
April 2014
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of the Top-Quark Mass in All-Jets t[bar over t] Events in pp Collisions at √s =7 TeV.” Eur. Phys. J. C 74, no. 4 (April 2014). © 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 t[bar over t] candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at √s = 7 TeV in 2011 and corresponds to an integrated luminosity of 3.54 fb[superscript -1]. The mass is reconstructed for each event employing a kinematic fit of the jets to a t[bar over t] hypothesis. The top-quark mass is measured to be 173.49 ± 0.69 (stat.) ± 1.21 (syst.) GeV. A combination with previously published measurements in other decay modes by CMS yields a mass of 173.54 ± 0.33 (stat.) ± 0.96 (syst.) GeV.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. School of Science
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-014-2758-x
