Measurements of the top-quark mass using charged particle tracking

Details Measurements of the top-quark mass using charged particle tracking Measurements of the top-quark mass using charged particle tracking

2009-10-06

arxiv.org/abs/0910.0969v1

Phys.Rev.D81:032002,2010

Physics

High Energy Physics

High Energy Physics - Experiment

submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.81.032002

We present three measurements of the top-quark mass in the lepton plus jets channel with approximately 1.9 fb-1 of integrated luminosity collected with the CDF II detector using quantities with minimal dependence on the jet energy scale. One measurement exploits the transverse decay length of b-tagged jets to determine a top-quark mass of 166.9+9.5-8.5 (stat) +/- 2.9 (syst) GeV/c2, and another the transverse momentum of electrons and muons from W-boson decays to determine a top-quark mass of 173.5+8.8-8.9 (stat) +/- 3.8 (syst) GeV/c2. These quantities are combined in a third, simultaneous mass measurement to determine a top-quark mass of 170.7 +/- 6.3 (stat) +/- 2.6 (syst) GeV/c2.

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