Home > Research > Publications & Outputs > Measurement of the top quark mass in $\boldsymb...

Electronic data

  • PhysRevD

    Rights statement: © 2012 American Physical Society

    Final published version, 156 KB, PDF document


Text available via DOI:

View graph of relations

Measurement of the top quark mass in $\boldsymbol{\ppbar}$ collisions using events with two leptons

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Article number051103(R)
<mark>Journal publication date</mark>26/09/2012
<mark>Journal</mark>Physical Review D
Issue number5
Number of pages8
Publication StatusPublished
<mark>Original language</mark>English


We present a measurement of the top quark mass ($m_t$) in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV using $t\bar{t}$ events with two leptons ($ee$, $e\mu$, or $\mu\mu$) and accompanying jets in $4.3 fb^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron collider. We analyze the kinematically underconstrained dilepton events by integrating over their neutrino rapidity distributions. We reduce the dominant systematic uncertainties from the calibration of jet energy using a correction obtained from $t\bar{t}$ events with a final state of a single lepton plus jets. We also correct jets in simulated events to replicate the quark flavor dependence of the jet response in data. We measure $m_t = 173.7 \pm 2.8\thinspace(\rm stat) \pm 1.5\thinspace(\rm syst)$ GeV and combining with our analysis in 1 fb$^{-1}$ of preceding data we measure $m_t = 174.0 \pm 2.4\thinspace(\rm stat) \pm 1.4\thinspace(\rm syst)$ GeV. Taking into account statistical and systematic correlations, a combination with the D0 matrix element result from both data sets yields $m_t = 173.9 \pm 1.9\thinspace(\rm stat) \pm 1.6\thinspace(\rm syst)$ GeV.

Bibliographic note

© 2012 American Physical Society 5 pages, 1 figure, submitted to Phys. Rev. Letters