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Precision top quark mass measurement in the lepton + jets topology in p anti-p collisions at $\sqrt{s}=$ 1.96-TeV

Publication ,  Journal Article
Abulencia, ; A, ; others,
Published in: Phys. Rev. Lett.
2006

We report two measurements of the top quark mass M_top using the CDF II detector at the Fermilab Tevatron in a 318 pb-1 data sample observed in the lepton + jets final state. One method uses an event-based likelihood technique resulting in M_top = 173.2+2.6_-2.4 (stat.) +/- 3.2 (syst.) GeV/c2 or 173.2+4.1_-40 GeV/c2. The second method reconstructs a top quark mass in each event using the measured invariant mass of the hadronically decaying W boson to constrain the jet energy scale to obtain a value for M_top of 173.5+3.7_-3.6 (stat.) +/- 1.3 (syst.) GeV/c2 or 173.5+3.9_-3.8 GeV/c2. We take the latter, which is more precise, as our result.

Duke Scholars

Published In

Phys. Rev. Lett.

Publication Date

2006

Volume

96

Start / End Page

022004

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

Published In

Phys. Rev. Lett.

Publication Date

2006

Volume

96

Start / End Page

022004

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences