Stochastic vacuum model and dual theory: a comparison in the context of the heavy quarkonia potential

Abstract

The $Q \bar{Q}$ semirelativistic interaction in QCD can be expressed in terms of the Wilson loop and its functional derivatives. In this framework we discuss the complete (velocity and spin dependent) $1/m^2$ potential in the stochastic vacuum model and in the dual theory.

4 pages, sprocl.sty required, talk given at the International Conference "Quark Confinement and the Hadron Spectrum II",Como 26-29June 1996