Chiral Symmetry, Heavy Quark Symmetry and Bound States

Abstract

I investigate the bound state problems of lowest-lying mesons and heavy mesons. Chiral symmetry is essential when one consider lowest-lying mesons. Heavy quark symmetry plays an central role in considering the semi-leptonic form factors of heavy mesons. Various properties based on the symmetries are revealed using Bethe-Salpeter equations.

Comments: 86 pages + 15 uuencoded eps and ps figures, LaTeX