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Combination of the top-quark mass measurements from the Tevatron collider

Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.
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Abstract
The top quark is the heaviest known elementary particle, with a mass about 40 times larger than the mass of its isospin partner, the bottom quark. It decays almost 100% of the time to a W boson and a bottom quark. Using top-antitop pairs at the Tevatron proton-antiproton collider, the CDF and D0 Collaborations have measured the top quark’s mass in different final states for integrated luminosities of up to 5.8  fb[superscript -1]. This paper reports on a combination of these measurements that results in a more precise value of the mass than any individual decay channel can provide. It describes the treatment of the systematic uncertainties and their correlations. The mass value determined is 173.18±0.56 (stat)±0.75 (syst)  GeV or 173.18±0.94  GeV, which has a precision of ±0.54%, making this the most precise determination of the top-quark mass.
Date issued
2012-11
URI
http://hdl.handle.net/1721.1/76191
Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Combination of the Top-quark Mass Measurements from the Tevatron Collider.” Physical Review D 86.9 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918

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