We present a measurement of the top quark mass in $p\overline{p}$ collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider. The data were collected by the D0 experiment corresponding to an integrated luminosity of $9.7\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. The matrix element technique is applied to $t\overline{t}$ events in the final state containing leptons (electrons or muons) with high transverse momenta and at least two jets. The calibration of the jet energy scale determined in the $\mathrm{lepton}+\text{jets}$ final state of $t\overline{t}$ decays is applied to jet energies. This correction provides a substantial reduction in systematic uncertainties. We obtain a top quark mass of ${m}_{t}=173.93\ifmmode\pm\else\textpm\fi{}1.84\text{ }\text{ }\mathrm{GeV}$.
Tópico:
Particle physics theoretical and experimental studies