Formula_1331

\[\bar{\alpha}_{s}\left(Q^{2} / \mu^{2}, \alpha_{s}\right)=\frac{\alpha_{s}}{1+\alpha_{s} \beta_{1} \ln \left(Q^{2} / \mu^{2}\right)}, \quad \beta_{1}=\frac{11}{4 \pi}-\frac{n}{6 \pi},\]