Implications of Configuration Mixing in The Chiral Quark Model With SU(3) and Axial U(1) Breakings for Nucleon Spin-Flavor Structure

Abstract

The implications of Chiral Quark Model with SU(3) and axial U(1) symmetry breakings as well as configuration mixing generated by one gluon exchange forces ($\chi$QM${}_{gcm}$) are discussed in context of proton flavor and spin structure as well as hyperon $\beta$-decay data. Apart from reproducing the success of $\chi$QM with symmetry breaking, it is able to improve upon the agreement with data in several cases such as, $G_A/G_V,{\Delta }_8,<A_1^p>$ dependent on spin polarization functions and ($\frac{2\bar{s}}{u+d}$), ($\frac{2\bar{s}}{\bar{u}+\bar{d}}$) and f_s involving the quark distribution functions.

Comments: 11 pages and 3 tables