Neutron Particle Hole Structure inPb208

Abstract

The ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}(p, p^{\prime })$ reaction was studied at twelve energies between 14 and 18 MeV, using a magnetic spectrograph placed at 90°. Excitation energies of states in ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ have been measured up to 7-MeV. Spectra taken on analog resonances in ${}_{}{}^{209}{}_{}{}^{}\mathrm{Bi}$ exhibit many preferentially populated particle-hole states in ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$. Qualitative information about the structure of these states is given.