Kaon Photoproduction in a Confining and Covariant Diquark Model

Abstract

Baryons are modeled as bound states of scalar or axialvector diquarks and a constituent quark which interact through quark exchange. This description results as an approximation to the relativistic Faddeev equation for three quarks. The corresponding effective Bethe-Salpeter equation is solved, and fully four-dimensional wave functions for both octet and decuplet baryons are obtained. Confinement of quarks and diquarks is incorporated by modifying their propagators. Results are given for kaon photoproduction which is one of the applications currently under investigation in this model.

4 pages, 2 figures; uses menu99.cls; talk given by R. Alkofer at Eighth International Symposium on Meson-Nucleon Physics and the structure of the nucleon (MENU99), Zuoz, Engadine, Switzerland August 15-21, 1999