Threshold Effects on the QCD Coupling $α_{\overline{MS}}$

Details Threshold Effects on the QCD Coupling $α_{\overline{MS}}$ Threshold Effects on the QCD Coupling $α_{\overline{MS}}$

1994-09-22

arxiv.org/abs/hep-ph/9409390v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, PITHA 94/31

Scientific paper

The matching condition which determines the effect of a heavy quark threshold
on the running of the QCD coupling $\alpha_{\overline{MS}}$ is reviewed. The
matching scale is arbitrary to some extent. However, this affects the value of
$\alpha_{\overline{MS}}$ away from the threshold region only marginally.

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