Speaker
Alberto Ramos Martinez
(CERN)
Description
Relating the value of the strong coupling at the electroweak
scale with the experimental value of hadronic quantities is a
theoretical challenge that requires a non-perturbative formulation of
the strong interactions. Lattice QCD provides an adequate theoretical
framework to attack this problem. Our collaboration has developed a
systematic strategy to connect non-perturbatively the low energy
region of QCD with its high energy perturbative domain. After many
years of applications to the pure gauge theory and two-flavour theory,
we have applied this strategy to the three flavour theory. This study
allow us to determine $\alpha_s(M_Z)$ in a controlled and precise
fashion.
Primary author
Alberto Ramos Martinez
(CERN)