High-spin states and signature inversion in 78Br.

摘要: High-spin states in {sup 78}Br have been studied up to an excitation energy of approximately 6 MeV and a spin 17{h_bar} using the 70}Zn({sup 11}B,3{ital n}){sup reaction at beam 45 MeV. The properties observed rotational bands, including moments inertia, signature splitting, inversion, are discussed within context cranked shell model. It is shown that cranked-shell-model calculations able reproduce experimentally inversion positive-parity yrast bands odd-odd isotopes 74,76,78}Br, which permits assignments quasiparticle configurations these bands. {copyright} {ital 1996 American Physical Society.}