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Combination of the top-quark mass measurements from the Tevatron collider
Baringer, Philip S. Bean, Alice Chen, G. Clutter, Justace Randall Sekaric, Jadranka Wilson, Graham Wallace Aaltonen, T. Abazov, V. M. Abbott, B. Acharya, B. S.
Baringer, Philip S.
Bean, Alice
Chen, G.
Clutter, Justace Randall
Sekaric, Jadranka
Wilson, Graham Wallace
Aaltonen, T.
Abazov, V. M.
Abbott, B.
Acharya, B. S.
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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 quarkâs mass in different final states for integrated luminosities of up to 5.8ââfb(â1). 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 173.18Âħ0.56â(stat)Âħ0.75â(syst)ââGeV or 173.18Âħ0.94ââGeV, which has a precision of Âħ0.54%, making this the most precise determination of the top-quark mass.
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This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.092003.
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2012-11-01
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Americal Physical Society
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Aaltonen, T. et al. (2012). "Combination of the top-quark mass measurements from the Tevatron collider." Physical Review D, 86(9):92003. http://www.dx.doi.org/10.1103/PhysRevD.86.092003.