Four-loop moments of the heavy quark vacuum polarization function in perturbative QCD
High Energy Physics - Phenomenology
2009-01-07 v2
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.
Cite
@article{arxiv.hep-ph/0604234,
title = {Four-loop moments of the heavy quark vacuum polarization function in perturbative QCD},
author = {K. G. Chetyrkin and J. H. Kühn and C. Sturm},
journal= {arXiv preprint arXiv:hep-ph/0604234},
year = {2009}
}
Comments
8 pages, 13 figures; final version accepted for publication in the journal