Modeling electromagnetic form factors of light and heavy pseudoscalar mesons

Abstract

The electromagnetic form factors of light and heavy pseudoscalar mesons are calculated within two covariant constituent-quark models, a light-front and a dispersion relation approach. We investigate the details and physical origins of the model dependence of various hadronic observables: the weak decay constant, the charge radius and the elastic electromagnetic form factor.

6 pages, 4 figures, use revtex4. Figure 2 and references are corrected. Acknoledgments are added