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

Harleen Dahiya, Manmohan Gupta

Published 2000-03-22, updated 2000-11-30Version 2

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.