Quark masses from Lattice QCD

por Leonardo Giusti (Scuola Normale Superiore - Pisa Italy)

jueves 19 feb. 1998 12:00 → 13:00 Europe/Madrid

Sala Seminarios (Dpto. de Fisica Teorica (UVEG))

We describe the definitions of quark masses extracted fron the Vector and the Axial Vector Ward Identities. We discuss their renormalization on the lattice using perturbative and non-perturbative procedures. We report the results obtained from Lattice QCD simulations in the quenched approximation with the Wilson and the tree-level improved SW-Clover fermionic actions. We compare the results obtained with the two methods and we study the $O(a)$ dependence of the quark masses for both actions.