Inelastic proton scattering via isobaric analog resonances allows derivation of rather complete information about neutron particle-hole states. We applied this method to the doubly-magic nucleus 208 Pb by measuring angular distributions of the reaction 208 Pb(p, p ) on top of the isobaric analog resonances in 209 Bi with the Q3D magnetic spectrograph at München. We identify the six states of the i 11/2 f 5/2 multiplet and the four states of the i 11/2 p 3/2 multiplet in the energy range 4.6 MeV < E x < 5.3 MeV. Firm spin assignments for the 10 states are given, most of them new. Additional measurements of the reaction 207 Pb(d, p) confirm the assignments. A new state at E x = 5239 keV has a dominant proton particle-hole structure with spin 4 − .

With the Q3D magnetic spectrograph of the Maier-Leibnitz-Laboratorium at München at a resolution of about 3 keV, angular distributions and excitation functions of the reaction 208 Pb(p,p ) were measured at some scattering angles 20 • -138 • for several proton energies 14.8-18.1 MeV. All seven known isobaric analog resonances in 209 Bi are covered. By the excitation near the j 15/2 intruder resonance in 209 Bi, several new positive parity states in 208 Pb with excitation energies 4.6-6.2 MeV are identified by comparison of the mean cross section to the known single particle widths. The dominant configuration for 27 positive parity states is determined and compared to the schematic shell model.

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