SEA CONTRIBUTIONS TO SPIN 1 2 BARYON STRUCTURE, MAGNETIC-MOMENTS, ANDSPIN DISTRIBUTION/

We treat the baryon as a composite system made out of a ''core'' of th ree quarks (as in the standard quark model) surrounded by a ''sea'' (o f gluons and q (q) over bar-pairs) which is specified by its total qua ntum numbers like flavor, spin and color. Specifically, we assume the sea to be a flavor octet with spin 0 or 1 but no color. The general wa ve function for spin 1/2 baryons with such a sea component is given. A pplication to the magnetic moments is considered. Numerical analysis s hows that a scalar (spin 0) sea with an admixture of a vector (spin 1) sea can provide very good fits to the magnetic moment data using expe rimental errors. These fit also give reasonable values for the spin di stributions of the proton and neutron.