NUCLEON OBSERVABLES AND LOOP DIAGRAMS IN CAVITY QCD

Using a technique which is based on dimensional regularization, loop c orrections to vertex diagrams of a massless quark moving in a spherica l cavity are calculated in an arbitrary covariant gauge. Including the finite one-gluon-exchange diagrams, the corrections to the magnetic m oments, vector and axial vector coupling constants, and the various r. m.s. radii of the nucleon are evaluated to order alpha(S). The results are compared with experimental data and previous calculations. (C) 19 96 Academic Press, Inc.