Novel and self-consistency analysis of the QCD running coupling ${\alpha }_s(Q)$ in both the perturbative and nonperturbative domains

Qing Yu, Hua Zhou, Xu-Dong Huang +2

The QCD coupling ${\alpha }_s$ is the most important parameter for achieving precise QCD predictions. By using the well measured effective coupling ${\alpha }_s^{g_1}(Q)$ defined from the Bjorke…