/ hep-ex FERMILAB-PUB-15-338-E

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

Pages: 10

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.

Note: *Temporary entry*; 10 pages, 2 figures, 2 tables, subm. to Phys. Lett. B

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