I report a new extraction of nucleon resonance couplings using
pi-photoprodution data on the neutron. The world database for the process
gamma n-->pi-p above 1 GeV has quadrupled with the addition of new
differential cross sections from CLAS at Jefferson Lab in Hall B.
Differential cross sections from CLAS have been improved with a new
final-state interaction determination using a diagrammatic technique
taking into account the NN and piN final-state interaction amplitudes.
Resonance couplings have been extracted and compared to previous
determinations. With the addition of these new cross sections, significant
changes are seen in the high-energy behavior of the SAID cross sections
and amplitudes.

Refs:
W. Chen, et al, submitted to Phys. Rev. C; arXiv:1203.4412 [hep-ph]
W. Chen, el al. (CLAS Collaboration), Phys. Rev. Lett. 103, 012301 (2009).
V.E. Tarasov, W.J. Briscoe, H. Gao, A.E. Kudryavtsev, and IIS,
      Phys. Rev. C 84, 035203 (2011).