Identification of triaxial strongly deformed bands in Hf-168

R. B. Yadav, W. C. Ma, G. B. Hagemann, Ragnar Bengtsson, Hans Ryde, H. Amro, A. Bracco, M. P. Carpenter, J. Domscheit, S. Frattini, D. J. Hartley, B. Herskind, H. Hubel, R. V. F. Janssens, T. L. Khoo, F. G. Kondev, T. Lauritsen, C. J. Lister, B. Million, S. OdegardL. L. Riedinger, K. A. Schmidt, S. Siem, G. Sletten, P. G. Varmette, J. N. Wilson, Y. C. Zhang

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20 Citations (SciVal)

Abstract

Possible decay pathways associated with three candidates for triaxial strongly deformed (TSD) bands in Hf-168 have been investigated. The spin and excitation energy of the strongest band, TSD1, were determined approximately based on gamma-ray coincidence relationships. Discrete links were established for the second band. The overall agreement between the observed properties of the bands and cranking calculations using the ULTIMATE CRANKER code provides strong support for an interpretation where band TSD1 is associated with a TSD minimum, (epsilon(2),gamma)similar to(0.43,20(degrees)), involving the pi(i(13/2))(2) and the nu(j(15/2)) high-j orbitals. This constitutes the first identification of a TSD band in Hf isotopes, which has been long-predicted by theoretical studies. The second band is understood as being associated with a near-prolate shape and a deformation enhanced with respect to the normal deformed bands. It is proposed to be built on the pi(i(13/2)h(9/2))circle times nu(i(13/2))(2) configuration.
Original languageEnglish
JournalPhysical Review C (Nuclear Physics)
Volume78
Issue number4
DOIs
Publication statusPublished - 2008

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Nuclear Physics (Faculty of Science) (011013004), Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

  • Subatomic Physics
  • Physical Sciences

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