Excited states in 208 Pb have been studied by measuring ␥ rays in time coincidence with reaction charged particles. 208 Pb states were produced with both the 207 Pb(d, p) 208 Pb and 209 Bi(t,␣) 208 Pb reactions. The energy resolution of the particle spectra of 100 keV allowed a rough determination of level excitation, which then was determined with high resolution from the coincident ␥ decay measured in Ge detectors. Many new ␥ transitions have been found and previously unresolved multiplets of states resolved. The data give spectroscopic factors for neutron transfer and proton pickup. Spins and parities of levels could be deduced from their ␥ decays. A least squares fit of all ␥ energies gave very precise ͑0.1 keV͒ level energies. All states predicted by the shell model below 4.6 MeV are now found and their spins determined unambiguously.
͓S0556-2813͑97͒03009-4͔PACS number͑s͒: 21.60. Cs, 23.20.Lv, 25.45.Hi, 27.80.ϩw
II. THE 209 Bi"t,␣␥… 208 Pb EXPERIMENT
A. Design of the experiment and proceduresThe 209 Bi(t,␣␥) 208 Pb reaction was used to excite levels in 208 Pb. Due to the huge positive energy balance of this
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