Competing Shapes And Alignments In Neutron-Rich Hf Nuclei

Journal Article · Mon May 12 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2939307· OSTI ID:21143358

Chowdhury, P; Tandel, U S; Tandel, S K ^[1]; Cline, D; Wu, C -Y ^[2]; Carpenter, M P; Janssens, R V. F.; Khoo, T L; Lauritsen, T; Lister, C J; Seweryniak, D; Zhu, S ^[3]

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1. Department of Physics, University of Massachusetts Lowell, Lowell MA 01854 (United States)
2. Nuclear Structure Research Laboratory, University of Rochester, Rochester NY 14627 (United States)
3. Argonne National Laboratory, Argonne, IL 60439 (United States)

The talk will focus on spin-dependent competition between oblate and prolate shape minima in the potential energy landscape of {sup 180}Hf (the most neutron-rich stable isotope), mediated via the alignment of valence nucleons. Results of a prompt spectroscopic study, using deep inelastic reactions with Gammasphere and CHICO, bombarding a thin {sup 232}Th target with a {sup 180}Hf beam {approx}25% above the Coulomb barrier, will be presented. Nucleon alignments in both prolate and oblate minima will be discussed, as well as the favoring of oblate collective rotation at high spins, observed through a mixing with gamma vibrations built on the prolate shape.

• OSTI ID: 21143358
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1012; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB FIELD
DEEP INELASTIC SCATTERING
GAMMA SPECTROSCOPY
HAFNIUM 180
HAFNIUM 180 TARGET
HIGH SPIN STATES
NEUTRONS
NUCLEAR STRUCTURE
POTENTIAL ENERGY
SPIN
THORIUM 232
THORIUM 232 TARGET