2000/10/30 by L. Theußl, L. Theussl, R. F. Wagenbrunn +2 · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1007/s100500170042
published as Eur.Phys.J. A12 (2001) 91-101 · 17 pages, 6 eps figures
arxiv created 2000/10/30 · openalex publication_date 2001/09/01 · arxiv updated 2009/12/01 · openalex created_date 2017/10/20 · openalex updated_date 2026/07/28
πand ηdecay modes of light baryon resonances are investigated within a chiral quark model whose hyperfine interaction is based on Goldstone-boson exchange. For the decay mechanism a modified version of the 3P0 model is employed. Our primary aim is to provide a further test of the recently proposed Goldstone-boson-exchange constituent quark model. We compare the predictions for πand ηdecay widths with experiment and also with results from a traditional one-gluon-exchange constituent quark model. The differences between nonrelativistic and semirelativistic versions of the constituent quark models are outlined. We also discuss the sensitivity of the results on the parametrization of the meson wave function entering the 3P0 model.