1. Coexistence of octupole deformation and beta and gamma vibrational bands in 148Ce
- Author
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Wang, EH, Brewer, NT, Hamilton, JH, Ramayya, AV, Yzaguirre, WA, Hwang, JK, Liu, SH, Luo, YX, Rasmussen, JO, Zhu, SJ, Ter-Akopian, GM, and Oganessian, Yu Ts
- Subjects
Nuclear and Plasma Physics ,Synchrotrons and Accelerators ,Physical Sciences ,Astronomical and Space Sciences ,Atomic ,Molecular ,Nuclear ,Particle and Plasma Physics ,Quantum Physics ,Nuclear & Particles Physics ,Astronomical sciences ,Nuclear and plasma physics ,Particle and high energy physics - Abstract
From γ-γ-γ and γ-γ-γ-γ coincidence studies of spontaneous fission of 252Cf, new high spin states in 148Ce were identified. The octupole bands with s=+1 and s=−1 are expanded with spins with 28+ and 18−, respectively. Importantly, a 1γ vibrational band has been established up to 14+ and a 1β vibrational band up to 6+. The levels in γ and β bands in 148Ce are compared systematically to those in neighboring 150Nd and 152Sm isotones. This comparison informs the role of deformation and shape transition in this mass region. New 3− and 5− members of the s=+1 octupole band were observed.
- Published
- 2021