Heavy Quarks from QCD Spectral Sum Rules

Abstract

This is a short review of the present status of the dynamics of the heavy quarks extracted from QCD spectral sum rules. We discuss the determination of the ``perturbative" quark mass, the decay constants of the $D$ and $B$ mesons, the form factors of the semileptonic and radiative decays of the $B$ mesons, the slope of the Isgur--Wise function and the emerged value of $V_{cb}$. We mention shortly some properties of the hybrid and $B_c$ mesons.

Comments: CERN-TH 7277/94, Updated version. Latex file (run twice). Talk given at the {\it XXIXth Rencontre de Moriond on `` QCD and High Energy Hadronic Interactions"}, Méribel, Haute-Savoie, 19--26th March 1994 and at the {\it Rencontre entre experimentateurs et theoriciens sur ``la violation de CP"}, Orsay, 6--7th May 1994