Comment on "Chiral Corrections in Hadron Spectroscopy"
arXiv:hep-ph/9902278
Abstract
It is shown that the principal pattern in baryon spectroscopy, which is associated with the flavor-spin dependent hyperfine interaction, is due to the spontaneous breaking of chiral symmetry in QCD and thus cannot be addressed by chiral perturbation theory, which is based on the explicit chiral symmetry breaking.
LaTeX, 4 pp