Hybrid and Conventional Baryons in the Flux-Tube and Quark Models

Abstract

The status of conventional baryon flux-tubes and hybrid baryons is reviewed. Recent surprises are that a model prediction indicates that hybrid baryons are very weakly produced in glue-rich Psi decays, and an analysis of electro-production data concludes that the Roper resonance is not a hybrid baryon. The baryon decay flux-tube overlap has been calculated in the flux-tube model, and is discussed here. The behavior of the overlap follows naive expectations.

Comments: Invited plenary talk presented at the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2004), 29 August - 4 September, Beijing, China. LaTeX, 11 (encapsulated) postscript figures, 6 pages