Collective rotation and vibration in neutron-rich {sup 180,182}Hf nuclei
- Department of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854 (United States)
High-spin states in neutron-rich {sup 180}Hf and {sup 182}Hf nuclei were populated through inelastic and transfer reactions with a {sup 136}Xe beam incident on a thin {sup 180}Hf target, and investigated using particle-{gamma} coincidence techniques. New collective band structures were observed, and previously known rotational and vibrational bands in these nuclei were extended to higher angular momenta. No obvious nucleon alignment was observed in the ground state band of either nucleus up to ({Dirac_h}/2{pi}){omega}=0.43 MeV, a significant delay compared to lighter even-even Hf isotopes. Woods-Saxon cranking calculations were performed to predict the nature of the first band crossings and shape evolution in {sup 180,182}Hf.
- OSTI ID:
- 20995118
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 75, Issue 3; Other Information: DOI: 10.1103/PhysRevC.75.034305; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Shape coexistence effects of super- and hyperdeformed configurations in rotating nuclei II. Nuclei with 42 {le} Z {le} 56 and 74 {le} Z {le} 92
LIFETIMES OF 4+ AND 2+ STATES IN THE ROTATIONAL NUCLEI Dy$sup 162$, Er$sup 166$, Er$sup 168$, AND Hf$sup 18$$sup 0$