Reconciling $G_A/G_V,<r_n^2>$ and ${\mu }_{p,n}$ in Chiral Quark Model with one Gluon Generated Configuration Mixing

Abstract

The spin polarization functions $(\Delta u,\Delta d,\Delta s)$ for proton are calculated in the chiral quark model ($\chi$QM) with SU(3) symmetry breaking as well as configuration mixing generated by one gluon exchange forces for the NMC and the most recent E866 data. Besides reproducing the spin polarization functions $\Delta u,\Delta d,\Delta s$ as well as $G_A/G_V$, it can accomodate nucleon magnetic moments and neutron charge radius as well, thus resolving the compatibility problem of these parameters which could not be achieved in constituent quark models.

Comments: 10 latex pages with 2 tables, revised in the light of latest data