Quark orbital angular momentum of ground-state octet baryons

Here we study the quark orbital angular momentum of ground octet baryons employing an extended chiral constituent model, within which baryon wave functions are taken to be superposition traditional $qqq$ and $qqqq\overline{q}$ higher Fock components. Coupling between two configurations is estimated using $^{3}P_{0}$ quark-antiquark creation mechanism, corresponding coupling strength determined by fitting sea flavor asymmetry nucleon. The obtained numerical results show that nucleon, $\mathrm{\ensuremath{\Sigma}}, \mathrm{\ensuremath{\Lambda}}$, $\mathrm{\ensuremath{\Xi}}$ hyperons, in range 0.10--0.30. In addition, all hyperons a little bit smaller than And spin fractions intrinsic could up $60%$ present model.