The Gell-Mann–Okubo mass relation among baryons from fully-dynamical mixed-action lattice QCD

We explore the Gell-Mann–Okubo mass relation among the octet baryons using fully-dynamical, mixed-action (domain-wall on rooted-staggered) lattice QCD calculations at a lattice spacing of b∼0.125 fmb∼0.125 fm and pion masses of mπ∼mπ∼ 290, 350, 490 and 590 MeV590 MeV. Deviations from the Gell-Mann–Okubo mass relation are found to be small at each quark mass.