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Scientific article
English

Measurement of the top quark mass in the lepton + jets channel using the lepton transverse momentum

ContributorsCDF Collaboration
Published inPhysics letters. B, vol. 698, no. 5, p. 371-379
Publication date2011
Abstract

This Letter reports a measurement of the top quark mass, MtopMtop, in data from pp collisions at √s=1.96 TeV corresponding to 2.7 fb−1 of integrated luminosity at the Fermilab Tevatron using the CDF II detector. Events with the lepton+jets topology are selected. An unbinned likelihood is constructed based on the dependence of the lepton transverse momentum, PTPT, on MtopMtop. A maximum likelihood fit to the data yields a measured mass Mtop=176.9±stat8.0±syst2.7 GeV/c2Mtop=176.9±8.0stat±2.7syst GeV/c2. In this measurement, the contribution by the jet energy scale uncertainty to the systematic error is negligible. The result provides an important consistency test for other MtopMtop measurements where explicit use of the jet energy is made for deriving the top quark mass.

Keywords
  • Top quark mass
  • Lepton momentum spectrum
Citation (ISO format)
CDF Collaboration. Measurement of the top quark mass in the lepton + jets channel using the lepton transverse momentum. In: Physics letters. B, 2011, vol. 698, n° 5, p. 371–379. doi: 10.1016/j.physletb.2011.03.041
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ISSN of the journal0370-2693
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