Friday, May 5, 2002, 16:00
WHGA Auditorium
Prof. M. Lüscher, CERN
Abstract:
While the lagrangian of the theory of the strong interactions looks
deceptively simple, the physics it describes changes qualitatively as
one moves up the energy scale. The lattice formulation of QCD,
numerical simulations and standard perturbation theory (Feynman
diagrams) are the tools that allow one to understand this phenomenon
and thus to relate the properties of the theory at high energies
(where quarks and gluons are the important degrees of freedom) to the
world of mesons and nucleons.