Abstract
Medium and high-spin states in Ce133 were investigated using the Cd116(Ne22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of ∼22.8 MeV and spin 93/2. Eleven bands of quadrupole transitions and two new dipole bands are identified. The connections to low-lying states of the previously known, high-spin triaxial bands were firmly established, thus fixing the excitation energy and, in many cases, the spin parity of the levels. Based on comparisons with cranked Nilsson-Strutinsky calculations and tilted axis cranking covariant density functional theory, it is shown that all observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.
| Original language | English |
|---|---|
| Article number | 054317 |
| Journal | Physical Review C |
| Volume | 93 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 12 2016 |
Funding
This work was supported in part by the U.S. National Science Foundation Grants No. PHY07-58100, No. PHY-0822648, No. PHY-1068192, and No. PHY-1419765, and the U.S. Department of Energy, Office of Nuclear Physics, under Grant No. DE-FG02-94ER40834 (UM) and Contract No. DE-AC02-06CH11357 (ANL). This research used resources of ANL's ATLAS facility, which is a DOE Office of Science User Facility.