Determination of the QCD $\Lambda$-parameter and the accuracy of perturbation theory at high energies

Mattia Dalla Brida, Patrick Fritzsch, Tomasz Korzec +3

We discuss the determination of the strong coupling ${\alpha }_{\overline{\mathrm{MS}}}^{}(m_{\mathrm{Z}})$ or equivalently the QCD $\Lambda$-parameter. Its determination requires the use of perturb…