Diffractive Production of Nucleon Resonances at 14 GeV and at ISR Energies

In a 14 GeV/c hybrid bubble chamber experiment studying the + reactions x-p + s'(na+) and r&p + r?(pa+r-) we observe marked similarities in the shapes of the recoiling mass spectra to those + found in pp -t p(nx ) and pp -t p(p'rr +IT ) at ISR energies. We discuss these similarities as well as absolute cross sections in terms of factorization. * Work supported by U.S. Energy Research and Development Administration. ?Present address: Mons University, Mons,Belgium t?Present address: CERN, Geneva, Switzerland tttPresent address: DESY, Hamburg, Germany +Present address: Iowa State University, Ames, Iowa (Submitted for Publication)