High-spin states of the semimagic nucleus 151Tm

High-spin states of the semimagic nucleus have been studied in the 96Ru(58Ni, 3p) reaction. The level scheme has been substantially extended to excitation energies of up to 12 MeV. More than 50 new γ-ray transitions and 40 new levels have been identified. Configuration Interaction Shell Model (CISM) calculations were performed in the full proton model space and compared with the experimental results. Four new sequences above the fully aligned state have been established, including proton excitations across the Z = 64 subshell and possible neutron excitations across the N = 82 shell gap.