Article

Collective rotation and vibration in neutron-rich<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Hf</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>180</mml:mn><mml:mo>,</mml:mo><mml:mn>182</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>nuclei

E. Ngijoi-YogoDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAS. K. TandelDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAG. MukherjeeDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAI. ShestakovaDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAP. ChowdhuryDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAC. Y. WuDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAD. ClineDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAA. B. HayesDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAR. TengDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAR. M. ClarkDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAP. FallonDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAA. O. MacchiavelliDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAK. VetterDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAF. G. KondevDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAS. D. LangdownDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAP. M. WalkerDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAC. WheldonDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USAD. M. CullenDepartment of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA

Physical Review Cjournal2007lv

ABI

Abstract

High-spin states in neutron-rich $^{180}\mathrm{Hf}$ and $^{182}\mathrm{Hf}$ nuclei were populated through inelastic and transfer reactions with a $^{136}\mathrm{Xe}$ beam incident on a thin $^{180}\mathrm{Hf}$ target, and investigated using particle-\ensuremath{\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 $\ensuremath{\hbar}\ensuremath{\omega}=0.43$ 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 $^{180,182}\mathrm{Hf}$.

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Topics

Nuclear physics research studies Rare-earth and actinide compounds Advanced NMR Techniques and Applications

Identifiers

DOI: 10.1103/physrevc.75.034305

Citations and references

Cited by 033 references

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