Light Vector Resonances in the Effective Chiral Lagrangian for Heavy Mesons

Abstract

We modify a chiral effective lagrangian recently suggested to describe interactions of the light pseudoscalars with mesons containing a heavy quark, so as to incorporate light vector resonances, such as $\rho$, etc. The modification uses the hidden gauge symmetry approach. As a preliminary example we present an application to the semileptonic $D\to K^{\star }$ decay.

Comments: 12 pages 3 figures (not included), LaTeX (style article), UGVA-DPT 1992/07-780, BARI-TH/92-116