High spin states of the odd-odd nucleus 122^Ⅰ have been investigated via the fusion- evaporation reaction 116^Cd(11^B, 5n) at a beam energy of 68 MeV. The yrast band is extended up to Ⅰ^π= (29+). The band termination at Ⅰ^π= (22^+) reported in previous studies is confirmed and interpreted as arising from a shape change from collective prolate to noncollective oblate according to Total-Routhian-Surface (TRS) calculations. In addition, the Ⅰ^π=(29^+) state is assigned to the [πh^11/2 (πg7/2)^2]23/2- [(vhll/2)^3 (vd5/2)^2]35/2- configuration corresponding to the full alignment of all valance nucleons outside the semi-closed shell.
Single-particle resonance states of 122Zr are studied in the real stabilization method within the framework of relativistic mean field theory. Two effcient methods are adopted to extract the resonance energy and width of 122Zr. The results are compared with those obtained from the analytic continuation in the coupling approach and scattering phase-shift methods.
The high-spin states of 159Lu were populated by fusion-evaporation reaction 144Sm (19F, 4n) with beam energy 106 MeV. A new level scheme was established, which consists of the yrast band with negative parity, the octupole vibration band based on the states and quasipartical band with positive parity. The high spin states of 159Lu were discussed by systemic characteristics.