Proton spin structure and the low-energy pp -> pp eta' reaction

Abstract

Gluonic degrees of freedom induce a contact term in the effective chiral Lagrangian description of the low-energy pp -> pp eta' reaction. The strength of this contact term is, in part, related to the amount of spin carried by polarised gluons in a polarised proton.

Comments: 2 pages, LaTeX, talk at DIS 2000, Liverpool, April 2000