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arXiv · hep-ph/0512058

Four-Loop Decoupling Relations for the Strong Coupling

Y. Schroder·M. Steinhauser
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Abstract

We compute the matching relation for the strong coupling constant within the framework of QCD up to four-loop order. This allows a consistent five-loop running (once the $β$ function is available to this order) taking into account threshold effects. As a side product we obtain the effective coupling of a Higgs boson to gluons with five-loop accuracy.

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Y. Schroder, M. Steinhauser. 2005-12-05. Four-Loop Decoupling Relations for the Strong Coupling. https://doi.org/10.1088/1126-6708%2F2006%2F01%2F051

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