QUARK DYNAMICS AND SPIN STRUCTURE IN THE CHIRAL CHROMODIELECTRIC MODEL

The dynamical structure of the nucleon is studied in the chiral version of the chromodielectric model. The color-dielectric field and the meson clouds are described by hedgehog coherent states. Standard projection techniques are used to construct zero-linear-momentum eigenstates with the nucleon quantum numbers of angular momentum and isospin. Both the unpolarized and the polarized quark distribution functions are computed. Results are in good agreement with the data and a noticeable improvement with respect to the predictions of the non-chiral model is observed.