Alternate Models of Particle-Core Coupling inBi209

Abstract

Energy levels in ${}_{}{}^{209}{}_{}{}^{}\mathrm{Bi}$ excited by nonresonant scattering of 16.10-MeV protons are compared with levels reached by scattering from a group of isobaric analog resonances at $E_p=14.95\mathrm{}$ MeV. The nonresonant results are sensitive to the parentage of ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ core excitations in the levels of ${}_{}{}^{209}{}_{}{}^{}\mathrm{Bi}$, while the resonant data provide information about the ${}_{}{}^{210}{}_{}{}^{}\mathrm{Bi}$ parentage.