Precision top-quark mass measurement in the lepton + jets topology in <script type="math/tex">p\overline{p}</script> collisions at <script type="math/tex">\sqrt{s}</script>=1.96 TeV

Abulencia, A.; Van Remortel, N.; et al.

doi:10.1103/PHYSREVLETT.96.022004

Title

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

Author

Abulencia, A.

Van Remortel, N.

et al.

Institution/Organisation

CDF Collaboration

Abstract

We report two measurements of the top-quark mass Mtop using the CDF II detector at the Fermilab Tevatron in a 318 pb-1 data sample of tt̅ events in the lepton+jets final state. One method uses an event-based likelihood technique resulting in Mtop=173.2-2.4+2.6(stat)±3.2(syst) GeV/c2 or 173.2-4.0+4.1 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 Mtop of 173.5-3.6+3.7(stat)±1.3(syst) GeV/c2 or 173.5-3.8+3.9 GeV/c2. We take the latter, which is more precise, as our result.

Language

English

Source (journal)

Physical review letters. - New York, N.Y., 1958, currens

Publication

New York, N.Y. : American Physical Society , 2006

ISSN

0031-9007 [print]

1079-7114 [online]

DOI

10.1103/PHYSREVLETT.96.022004

Volume/pages