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

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...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2006-10, Vol.48 (1), p.107-110
Main Authors: Chetyrkin, K.G., Kühn, J.H., Sturm, C.
Format: Article
Language:English
Subjects:
Charm (particle physics)
Polarization
Quantum chromodynamics
Quarks
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Summary: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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s2006-02610-y