γ-ray spectroscopy of proton neutron-hole nucleus 208Bi from deep inelastic heavy ion reactions

gamma Rays in the pinu(-1) nucleus Bi-208 have been studied at the Gammasphere using deep-inelastic reactions induced by a 305-MeV Ca-48 beam on a thick Pb-208 target. Previously unknown yrast gamma-ray cascades above the 10(-) millisecond isomer in Bi-208 were identified in cross coincidence with known gamma rays from complementary potassium products. Yrast and near-yrast levels up to 5.6 MeV in Bi-208 have been located, and they are interpreted in light of earlier charged particle spectroscopy results, and with the help of shell model calculations.