出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We estimate the running coupling constant of the strong interactions within the nonperturbative
framework of lattice QCD in Landau gauge. Our calculation is based on the ghost-gluon vertex
which in the particular case of Landau gauge allows for a definition of as in a MOM scheme
solely in terms of the gluon and ghost dressing functions. As a first step we investigate the zero
and two-flavour case and report here on preliminary results.
