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arxiv: hep-ph/0604234 · v2 · submitted 2006-04-26 · ✦ hep-ph

Four-loop moments of the heavy quark vacuum polarization function in perturbative QCD

K. G. Chetyrkin , J. H. K\"uhn , C. Sturm This is my paper
classification ✦ hep-ph
keywords quarkfour-loopfunctionheavyperturbativepolarizationvacuumbottom-quark
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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.

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