2003/06/20 by Jun He, Yubing Dong, Yu-Bing Dong · 2 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum chaos and dynamical systems #nucl-th
paper · pdf · doi:10.1016/s0375-9474(03)01604-x
published as Nucl.Phys. A725 (2003) 201-210 · 11 pages, no figure, accepted by Nucl. Phys. A
arxiv created 2003/06/20 · openalex publication_date 2003/07/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In this paper, we calculate the masses and mixing angles of L=1 negative parity N* resonances in an extended GBE (Goldstone-boson-exchange model) with harmonic-oscillator wave functions. By using those mixing angles, we get their photoproduction amplitudes, and compare them with experimental data and the results of OPE (one-pion-exchange model), OPsE (only pseudoscalar meson exchange model), and OGE (one-gluon-exchange model). We find that the extended GBE gives right internal wave functions. It is essential to extend GBE to include not only pseudoscalar meson exchanges but also vector meson exchanges.