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Multiple excitation modes in 163Hf

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Rachita Yadav
  • J.C. Ma
  • J.C. Marsh
  • Q. A. Ijaz
  • R. V. F. Janssens
  • MP Carpenter
  • C.R. Hoffman
  • T Lauritsen
  • S. Zhu
  • F.G. Kondev
  • G. Gürdal
  • Gudrun Bertram Hagemann
  • D.J. Hartley
  • L. L. Riedinger
  • S. Mukhopadhyay
Excited states of Hf163 were populated using the Zr94(Ge74,5n) reaction and the decay γ rays were measured with the Gammasphere spectrometer. Two previously known bands were extended to higher spins, and nine new bands were identified. In addition to bands associated with three- and five-quasiparticle configurations, two γ−vibrational bands coupled to the i13/2 excitation were also observed. The lowest level of a newly identified, negative-parity band is proposed to be the ground state of the nucleus. A systematic delay of the high-spin proton crossing frequency with increasing quadrupole deformation from Hf162 to Hf172 was established. Extensive band searches failed to reveal a triaxial, strongly deformed structure in Hf163 similar to the one observed in several nuclei around A∼165.
OriginalsprogEngelsk
Artikelnummer054325
TidsskriftPhysical Review C (Nuclear Physics)
Vol/bind90
ISSN0556-2813
DOI
StatusUdgivet - 19 nov. 2014

ID: 128692260