Abstract
A modification in the (harmonic) kernel of a QCD-oriented Bethe-Salpeter equation known for good fits to and spectroscopy gives a comprehensive description of , , and systems. The new assumptions are (i) proportionality of the "reduced" spring constant to () and (ii) the replacement . These provide a more direct QCD motivation for confinement and effect a smooth transition from harmonic () to linear () confinement.
- Received 5 March 1986
DOI:https://doi.org/10.1103/PhysRevLett.57.290
©1986 American Physical Society