The lightest baryon octet is studied within a covariant and confining Nambu--Jona-Lasinio model. By solving the relativistic Faddeev equations including scalar and axialvector diquarks, we determine the masses and axial charges for \Delta S = 0 transitions. For the latter the degree of violation of SU(3) symmetry arising because of the strange spectator quark(s) is found to be up to 10%.
@article{arxiv.1409.1653,
title = {SU(3)-flavour breaking in octet baryon masses and axial couplings},
author = {Manuel E. Carrillo-Serrano and Ian C. Cloët and Anthony W. Thomas},
journal= {arXiv preprint arXiv:1409.1653},
year = {2015}
}