PHOTOPRODUCTION OF L=1 BARYONS - QUARK-MODEL VERSUS LARGE N-C QCD - ART. NO. 053005

We consider the electromagnetic decays of the orbitally excited SU(6) 70-plet baryons, to compare the predictions of the naive quark model w ith those of large-N-c QCD. The helicity amplitudes measured in N pho toproduction are computed in a large-N-c effective field theory, based on a Hartree approximation, and the amplitudes are fit to the current experimental data. Our results indicate that the success of the naive quark model predictions cannot be explained by large-N-c arguments al one. This is consistent with the conclusions of an earlier study of th e N-->N pi decays that utilized the same approach. [S0556-2821(98)054 17-4].