Four-loop moments of the heavy quark vacuum polarization function in perturbative QCD
arXiv:hep-ph/0604234 · doi:10.1140/epjc/s2006-02610-y
Abstract
New results at four-loop order in perturbative QCD for the first two Taylor coefficients of the heavy quark vacuum polarization function are presented. They can be used to perform a precise determination of the charm- and bottom-quark mass. Implications for the value of the quark masses are briefly discussed.
8 pages, 13 figures; final version accepted for publication in the journal