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(-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.

T. Aaltonen, V. Abazov, B. Abbott, B. Acharya, M. Adams, T. Adams, et al. (2012). Combination of the top-quark mass measurements from the Tevatron collider. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 86, 092003-1-092003-31 [10.1103/PhysRevD.86.092003].

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

BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2012

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(-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.
2012
T. Aaltonen, V. Abazov, B. Abbott, B. Acharya, M. Adams, T. Adams, et al. (2012). Combination of the top-quark mass measurements from the Tevatron collider. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 86, 092003-1-092003-31 [10.1103/PhysRevD.86.092003].
T. Aaltonen;V. Abazov;B. Abbott;B. Acharya;M. Adams;T. Adams;G. Alexeev;G. Alkhazov;A. Alton;B. Álvarez González;G. Alverson;S. Amerio;D. Amidei;A. An...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/152449
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