Study of the electromagnetic structure of hadrons will enter a new era with
the advent of CEBAF. We can distinguish two areas in which we can expect a
renaissance of physics activity and results. The first is the area of
baryon resonances, which entails the detailed exploration of N and
resonances of the nucleon. The primary goal is to establish in
detail the photocoupling amplitudes to individual resonances. By
unraveling the separated Q
dependences and spin structure one will
confront microscopic models of resonance production with complete
information on the baryon resonances. The second area is that of
spectroscopic searches, wherein one seeks predicted but undiscovered
resonances and ``exotics." Such states may be accessible for the first time
at CEBAF. Experimental searches in this area have the potential to
identify predicted states of baryons and mesons which have eluded detection
until now.
It should be emphasized that the electromagetic probe is a uniquely precise tool for the exploration of hadron structure. It is the best possible tool for mapping the spatial and spin structure of the nucleon resonances and the mesons. Vastly improved experimental facilities are now nearing completion. We will have polarized beams, high-power polarized targets, large acceptance detectors, and high resolution coincidence spectrometers. Running the program of experiments developed in the last few years is clearly the most pressing need in this area of physics.