1995/09/30 by S. Takeuchi, Sachiko Takeuchi · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.53.6619
published as Phys.Rev.D53:6619-6631,1996 · 26 pages, LaTeX, 3 uuencoded figures
arxiv created 1995/10/01 · openalex publication_date 1996/06/01 · arxiv updated 2014/11/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The effects of the spin-orbit and the tensor parts of the instanton-induced interaction on the excited positive-and negative-parity nonstrange baryons and on the two-nucleon systems are investigated. The spin-orbit force from the instanton-induced interaction cancels most of that from the one-gluon exchange in the excited baryons while the spin-orbit force in the nucleon systems remains strong after the inclusion of the instanton-induced interaction. The model including the spin-orbit and the tensor terms of the instanton-induced interaction as well as the one-gluon exchange is found to reproduce successfully the excited baryon mass spectrum and the scattering phase shifts of two nucleons in the spin-triplet relative P-wave state.