Abstract
A new sum rule for the backward spin polarizability of the nucleon, is derived from a backward-angle dispersion relation. Taking into account single-pion and multipion photoproduction in the s channel up to the energy and resonances in the t channel with mass below it is found for the proton and neutron that and respectively, in units of
- Received 14 September 1998
DOI:https://doi.org/10.1103/PhysRevC.59.1064
©1999 American Physical Society