From scalar to string confinement - art. no. 094021

We outline a connection between scalar quark confinement, a phenomenologica lly successful concept heretofore lacking fundamental justification, and QC D. Although scalar confinement does not follow from QCD, there is an intere sting and close relationship between them. We develop a simple model interm ediate between scaler confinement and the QCD string for illustrative purpo ses. Finally, we find analytically the bound state spectrum of the light de grees of freedom for a spinless, massless quark in scalar, time-component v ector, and string confinement through semi-classical quantization.