arXiv:1409.1653·v2·Nuclear Theory
SU(3)-flavour breaking in octet baryon masses and axial couplings
Manuel E. Carrillo-Serrano🇦🇺 · Ian C. Cloët🇺🇸 · Anthony W. Thomas🇦🇺
Abstract
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%.
Comments: 9 pages, 6 figures