Chiral perturbation theory confronted with experiment

Abstract

The general framework and the present status of the low energy theory of the standard model are briefly reviewed. Recent applications to a few topic of interest for the determinations of Vud and of Vus are discussed

Talk given at the DAPHNE 2004 Workshop, Frascati, June 7 - 11, 2004; 9 pages, uses frascatiphys.sty