Abstract
We write the four-point Green function in QCD in the Feynman-Schwinger representation and show that all the dynamical information is contained in the Wilson loop average. We work out the QED case in order to obtain the usual Bethe-Salpeter kernel. Finally we discuss the QCD case in the nonperturbative regime giving some insight into the nature of the interaction kernel.
| Original language | English |
|---|---|
| Pages (from-to) | 1445-1454 |
| Number of pages | 10 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 56 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1997 |
| Externally published | Yes |