Proton-Particle, Neutron-Hole Multiplets in BI208

The reactions ${\mathrm{Pb}}^{207}({\mathrm{He}}^3,d){\mathrm{Bi}}^{208}$ and ${\mathrm{Bi}}^{209}\mathrm{}(d,t)\mathrm{}{\mathrm{Bi}}^{208}$ are found to excite the single-proton states coupled to the $3p_{\frac{1}{2}}$ neutron hole in ${\mathrm{Pb}}^{208}$ and the single-neutron hole states coupled to the $h_{\frac{9}{2}}$ proton added to ${\mathrm{Pb}}^{208}$, respectively. Each particle-hole configuration forms a multiplet of states. Nine such multiplets have been identified, most of them for the first time. Tentative spin assignments based on intensities are proposed; a comparison with theoretical calculations gives remarkable agreement.