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Article Dans Une Revue Physics Letters B Année : 2016

Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting

V.M. Abazov
  • Fonction : Auteur
E. Kajfasz
P. Pétroff
  • Fonction : Auteur
  • PersonId : 830346

Résumé

We measure the top quark mass in dilepton final states of top-antitop events in proton-antiproton collisions at sqrt(s) = 1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb^-1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the statistical uncertainties. We also improve the calibration of jet energies using the calibration determined in top-antitop to lepton+jets events, which reduces the otherwise limiting systematic uncertainty from the jet energy scale. The measured top quark mass is mt = 173.32 +/- 1.36(stat) +/- 0.85(syst) GeV.

Dates et versions

in2p3-01187316 , version 1 (26-08-2015)

Identifiants

Citer

V.M. Abazov, U. Bassler, M. Besançon, G. Bernardi, D. Brown, et al.. Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting. Physics Letters B, 2016, 752, pp.18-26. ⟨10.1016/j.physletb.2015.10.086⟩. ⟨in2p3-01187316⟩
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