Abstract : The behavior of the low-transfer vertex for baryon-baryon-meson interaction and threshold effects plays an important role for the spin-orbit interaction in baryons. If treated correctly they are capable of explaining, at least schematically, the order and importance of spin-orbit splittings in L=1 baryons as well as partial and total widths.
B. Silvestre-Brac, C. Gignoux. Unitary effects in spin-orbit splitting of p-wave baryons. Physical Review D, American Physical Society, 1991, 43, pp.3699-3708. ⟨10.1103/PhysRevD.43.3699⟩. ⟨in2p3-00004233⟩