Precise measurement of the top quark mass in the dilepton channel at D0

Abstract

We measure the top quark mass (mt) in ppbar collisions at a center of mass energy of 1.96 TeV using dilepton ttbar->W+bW-bbar->l+nubl-nubarbbar events, where l denotes an electron, a muon, or a tau that decays leptonically. The data correspond to an integrated luminosity of 5.4 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider. We obtain mt = 174.0 +- 1.8(stat) +- 2.4(syst) GeV, which is in agreement with the current world average mt = 173.3 +- 1.1 GeV. This is currently the most precise measurement of mt in the dilepton channel.

7 pages, 4 figures

References in corpus (6)

• PYTHIA 6.4 Physics and Manual
• Measurement of the inclusive jet cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$
• The Matrix Element Method and its Application to Measurements of the Top Quark Mass
• Measurement of spin correlation in ttbar production using dilepton final states
• Top quark mass measurement using the template method at CDF
• Measurement of the top quark mass at CDF using the "neutrino $\varphi$ weighting" template method on a lepton plus isolated track sample

Cited by in corpus (14)

• Combination of CDF and DO results on the mass of the top quark using up to 5.8~fb-1 of data
• Asymmetries in top quark pair production at hadron colliders
• Simultaneous measurement of forward-backward asymmetry and top polarization in dilepton final states from $t\bar{t}$ production at the Tevatron
• Electron and Photon Identification in the D0 Experiment
• Measurement of the top quark mass in $\boldsymbol{\ppbar}$ collisions using events with two leptons
• Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting
• Using the (Modified) Matrix Element Method to constrain $L_{\mu }-L_{\tau }$ Interactions
• Search for a Higgs boson in the diphoton final state using the full CDF data set from proton-antiproton collisions at \surds = 1.96 TeV
• Precision measurements of the top quark mass from the Tevatron in the pre-LHC era
• Top Quark Physics at the Tevatron
• Measurement of the Top Quark Mass Using the Matrix Element Technique in Dilepton Final States
• Measurements of the Production, Decay and Properties of the Top Quark: A Review
• Top Quark Physics at the Tevatron
• Top-Quark Mass Measurement in the Dilepton Channel Using {\it in situ} Jet Energy Scale Calibration