Effect of Sigma-beam Asymmetry Data on Fits to Single Pion   Photoproduction off Neutron
  We investigate the influence of new GRAAL Sigma-beam asymmetry measurements on the neutron in multipole fits to the single-pion photoproduction database. Results are compared to those found with the addition of a double-polarization quantity associated with the sum rule. 
I.I. Strakovsky, R.A. Arndt, W.J. Briscoe, M.W. Paris, R.L. Workman   (GWU)
nucl-th hep-ex hep-ph nucl-ex