Search for octupole correlations in neutron-rich {sup 148}Ce nucleus

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.054316· OSTI ID:20771537

Chen, Y J; Sakhaee, M; Che, X L; Ding, H B; Li, M L ^[1]; Zhu, S J ^[1]; Hamilton, J H; Ramayya, A V; Hwang, J K; Li, K ^[2]; Luo, Y X ^[2]; Rasmussen, J O; Lee, I Y ^[3]

---

1. Department of Physics, Tsinghua University, Beijing 100084 (China)
2. Department of Physics, Vanderbilt University, Nashville, Tennessee 37235 (United States)
3. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

New transitions and levels in {sup 148}Ce have been observed in a {gamma}-{gamma}-{gamma} coincidence study from the spontaneous fission of {sup 252}Cf with Gammasphere detector array. The ground band has been extended up to I{sup {pi}}=22{sup +}, and side bands are extended with {delta}I=2 stretched transitions and {delta}I=1 crossing transitions. The observed level scheme is interpreted in terms of possible octupole correlations. Two sets of interwined positive- and negative- parity bands with the simplex quantum numbers s={+-}1 are suggested. The results of B(E1)/B(E2) branching ratios indicate that the octupole correlations in {sup 148}Ce are strong.

• OSTI ID: 20771537
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevC.73.054316; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BRANCHING RATIO
CALIFORNIUM 252
CERIUM 148
CORRELATIONS
E1-TRANSITIONS
E2-TRANSITIONS
HIGH SPIN STATES
ISOSPIN
NEUTRONS
OCTUPOLES
PARITY
PROBABILITY
QUANTUM NUMBERS
SPONTANEOUS FISSION