The ${}_{}{}^{210}{}_{}{}^{}\mathrm{Pb}(p,d){}_{}{}^{209}{}_{}{}^{}\mathrm{Pb}$ reaction has been studied at an energy of 20.6 MeV in the angular range 13-17°. The objectives of the work were twofold. First, the fragmentation of the two-particle-one-hole ${{\nu }_{0^{+}}}^2{{\nu }_{{\mathrm{nl}}_j}}^{-1\mathrm{}}$ strength up to an excitation in ${}_{}{}^{209}{}_{}{}^{}\mathrm{Pb}$ of 5.3 MeV was investigated and compared with the corresponding ${{\nu }_{{\mathrm{nl}}_j}}^{-1\mathrm{}}$ strength in ${}_{}{}^{207}{}_{}{}^{}\mathrm{Pb}$ as reported in a recent study of the ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}\mathrm{}(p,d)\mathrm{}$ reaction at 20 and 22 MeV. Second, the microscopic structure of the valence neutrons ${{\nu }_{0^{+}}}^2$ in the ground state of ${}_{}{}^{210}{}_{}{}^{}\mathrm{Pb}$ was investigated by measuring the spectroscopic factors for pickup to the six low-lying neutron single-particle states in ${}_{}{}^{209}{}_{}{}^{}\mathrm{Pb}$.

• Received 24 July 1970

DOI:https://doi.org/10.1103/PhysRevC.3.349