Correction to Goldstein Equation from the Gluon Condensate Diagram
- Received Date: 1991-10-05
Abstract: An exact Goldstein solution of the Bethe-Salpeter equation for a vanishing total four-momentum in the ladder approximation of the free gluon exchange and the gloun condensating correction is discussed in detail. We find that the gluon condensate correction makes a pair of quark-antiquark more likely to form a bound state.