Quark sea flavor asymmetries in the spin−32+ decuplet baryons

Abstract

The implications of the quark sea generation through the chiral fluctuations have been studied in the context of quark flavor distribution functions for the $\text{spin}\ensuremath{-}{(3/2)}^{+}$ decuplet baryons. The chiral constituent quark model allows a simple and intuitive method to investigate the principle features of the hadron structure and is able to qualitatively generate the requisite amount of quark sea. It is also known to provide a satisfactory justification for the chiral symmetry breaking and SU(3) symmetry breaking. In light of the recent developments to test the mechanism for the quark sea generation, the quark sea asymmetries $\overline{d}\ensuremath{-}\overline{u}$, $\overline{d}/\overline{u}$ and the fraction of a particular quark ${F}_{q}^{{B}^{*}}=({q}^{{B}^{*}}+{\overline{q}}^{{B}^{*}}/{\ensuremath{\sum}}_{q}({q}^{{B}^{*}}+{\overline{q}}^{{B}^{*}}))$ have been studied for the $\text{spin}\ensuremath{-}{(3/2)}^{+}$ decuplet baryons. The suppression factors estimating the strange quark content with respect to the nonstrange quarks in the $\mathrm{\ensuremath{\Delta}}$ baryons and the suppression factors estimating the $u$ and $d$ quark contents with respect to the strange quarks in ${\mathrm{\ensuremath{\Omega}}}^{\ensuremath{-}}$ baryons have also been discussed.