Feliciano de Soto Borrero
(Universidad Pablo de Olavide)
04/06/2019, 17:45
(25'+5')
The non-renormalization of the ghost-gluon vertex offers a precise recipe to determine the running of $\alpha_s$ from gluon and ghost propagators in lattice-QCD (in the Taylor renormalization scheme). A non-perturvative analysis of this running allows obtaining $\Lambda_{\rm \overline{MS}}$ which determines the value of the coupling at the $Z_0$-pole mass, $\alpha_{\rm...