Timo van Ritbergen

TL;DR: In this paper, the analytic relation between the MS and the pole quark masses is computed to O(α s 3 ) in QCD and the accuracy of the large β 0 approximation is critically examined and the implications of the obtained relation for semileptonic B decay are discussed.

TL;DR: The order α s 2 contribution to the inclusive semileptonic decay width of a b quark Γ(b→X u e ν e ) was calculated analytically for zero mass u quarks as discussed by the authors.

TL;DR: A brief overview of the relation between the MS quark mass and the pole quark masses at the third order of Quantum Chromodynamics can be found in this paper, where a 3-loop result for the quark wave function renormalization factor Z2 in the on-shell scheme is discussed.