Precise measurement of the top-quark mass from lepton+jets events at D0

Abstract

We report a measurement of the mass of the top quark in lepton+jets final states of ppbar->ttbar data corresponding to 2.6 fb^{-1} of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider. Using a matrix element method, we combine an insitu jet energy calibration with our standard jet energy scale derived in studies of γ+jet and dijet events and employ a novel flavor-dependent jet response correction to measure a top-quark mass of mt = 176.01 +/- 1.64 GeV. Combining this result with our previous result obtained on an independent data set, we measure a top-quark mass of mt = 174.94 +/- 1.49 GeV for a total integrated luminosity of 3.6 fb^{-1}.

19 pages, accepted by Phys. Rev. D

References in corpus (8)

• PYTHIA 6.4 Physics and Manual
• MCFM for the Tevatron and the LHC
• Design and Implementation of the New D0 Level-1 Calorimeter Trigger
• b-Jet Identification in the D0 Experiment
• Measurement of the W boson mass
• Measurement of the top quark mass in the lepton+jets final state with the matrix element method
• The D0 Silicon Microstrip Tracker
• Precise measurement of the top quark mass from lepton+jets events at D0

Cited by in corpus (23)

• Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP
• Combination of the top-quark mass measurements from the Tevatron collider
• A likelihood-based reconstruction algorithm for top-quark pairs and the KLFitter framework
• Precision measurement of the top-quark mass in lepton+jets final states
• Measurement of differential $t\bar{t}$ production cross sections in $p\bar{p}$ collisions
• Lorentz and CPT Violation in Top-Quark Production and Decay
• Direct measurement of the mass difference between top and antitop quarks
• Measurement of the mass difference between top and antitop quarks
• Measurement of the top quark mass in $\boldsymbol{\ppbar}$ collisions using events with two leptons
• Precision measurement of the top-quark mass in lepton+jets final states
• The Top Quark
• Measurement of the ratio of differential cross sections σ(ppbar -> Z + b jet)/σ(ppbar -> Z + jet) in ppbar collisions at sqrt(s)=1.96 TeV
• Measurement of the inclusive $t\bar{t}$ production cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV and determination of the top quark pole mass
• Precision measurements of the top quark mass from the Tevatron in the pre-LHC era
• Search for the standard model Higgs boson in $\mathbf{\ell }\mathbf{\nu }$+jets final states in 9.7~fb${}^{-1}$ of $\mathbf{p}\bar{\mathbf{p}}$ collisions with the D0 detector
• Top Quark Physics at the Tevatron
• Resolving Combinatorial Ambiguities in Dilepton $t\bar{t}$ Event Topologies with Neural Networks
• Acceleration of matrix element computations for precision measurements
• Measurements of the Production, Decay and Properties of the Top Quark: A Review
• Measurement of the ratio of inclusive cross sections $\sigma (p\bar{p}\to Z+2b\text{jets})/\sigma (p\bar{p}\to Z+\text{2 jets})$ in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Top Quark Physics at the Tevatron
• Review of recent measurements in the top quark sector at the Tevatron
• Top-Quark Mass Measurement in the Dilepton Channel Using {\it in situ} Jet Energy Scale Calibration