Spin polarizabilities of the nucleon

Abstract

Spin polarizabilities of the nucleon are discussed in the framework of fixed-t and backward-angle dispersion relations, chiral perturbation theory, and the non-relativistic quark model. Calculations with the dispersion relations generally confirm findings from HBChPT and disagree with a recent experimental result from LEGS for the backward spin polarizability.

6 pages, 1 table, sprocl.sty. Minor typos are corrected. Talk at the Conference "Mesons and Light Nuclei", Prague-Pruhonice, Aug 31 - Sep 4, 1998; to appear in proceedings