The Proton Spin Structure in Skyrme Type Models

Abstract

It is demonstrated how in the soliton approach to baryons a small but non-vanishing matrix element of the axial singlet current is obtained. Furthermore it is shown that these models also provide a mechanism to disentangle the ``matter" and ``glue" contributions to this matrix element. Numerical results indeed exhibit a cancellation between these two components. However, the magnitudes of both turn out to be significantly smaller than unity.

4 pages, LaTeX, UNITU-THEP-12/1993 Talk presented at the 13${}^{\mathrm{th}}$ PANIC meeting, Perugia, June 28${}^{\mathrm{th}}$-July 3${}^{\mathrm{nd}}$ 1993