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

Abstract : 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-01187316
Contributor : Sylvie Flores <>
Submitted on : Wednesday, August 26, 2015 - 3:23:20 PM
Last modification on : Thursday, November 19, 2020 - 1:01:38 PM

### Citation

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, Elsevier, 2016, 752, pp.18-26. ⟨10.1016/j.physletb.2015.10.086⟩. ⟨in2p3-01187316⟩

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