1995/08/18 by L. Ya. Glozman, L.Ya Glozman, D. O. Riska +1 · 2 citations
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/0370-2693(95)01369-5
published as Phys.Lett. B366 (1996) 305-310 · Latex 7 p, no figures
arxiv created 1995/08/18 · openalex publication_date 1996/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The constituent quark model can explain the strong selectivity of the Nη decay branching ratios of the nucleon resonances if the fine structure interaction between the constituent quarks is described in terms of Goldstone boson exchange. This chiral quark model predicts that the resonances N(1535), N(1710), Λ(1670), Σ(1750), which have mixed flavor and spin symmetry [21]FS [21]F [21]S wavefunctions in lowest order, should have large Nη branching ratios, while Nη decay of the other resonances that have different flavor-spin symmetry should be strongly suppressed in agreement with the experimental branching ratios.