DIRECTMEASUREMENTOFTHETOPQUARKMASS

Abstract

▪ Abstract We review the direct measurements of the top quark mass M t using the sample of [Formula: see text] events collected by the DØ and CDF experiments at Fermilab. Measurements using events in the lepton plus jets, dilepton, and all-hadronic [Formula: see text] decay modes are reviewed, as is the combination of the results to yield the current world average M t = 174.3 ± 3.2 (stat.) ± 4.0 (syst.) GeV/c 2 . We close by estimating the precision attainable with future data sets at Fermilab and the Large Hadron Collider.