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Coexisting oblate and strongly triaxial structures in 191Pt

  • T. KutsarovaEmail author
  • C. Schück
  • E. Gueorguieva
  • A. Minkova
  • I. Zartova
  • F. Hannachi
  • A. Korichi
  • A. Lopez-Martens
Article

Abstract.

Excited states in 191Pt have been populated using the reaction 186W + 11B at 85MeV beam energy. Gamma-ray coincidences were measured using the EUROGAM-II spectrometer array. The level scheme has been extended considerably. Evidence for favoured structures of highly triaxial shape with γ ∼ -90° coexisting with oblate structures has been obtained by comparison with total Routhian surface and cranked shell model calculations. The presence of proton excitations in both positive- and negative-parity states has been confirmed.

PACS.

29.30.Kv X- and γ-ray spectroscopy 23.20.Lv γ transitions and level energies 21.60.Ev Collective models 27.80.+w 190 ⩽ A ⩽ 219 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2004

Authors and Affiliations

  • T. Kutsarova
    • 1
    Email author
  • C. Schück
    • 2
  • E. Gueorguieva
    • 3
  • A. Minkova
    • 4
    • 1
  • I. Zartova
    • 4
  • F. Hannachi
    • 2
  • A. Korichi
    • 2
  • A. Lopez-Martens
    • 2
  1. 1.INRNE-BASSofiaBulgaria
  2. 2.CSNSMIN2P3-CNRSOrsayFrance
  3. 3.iThemba Laboratory for Accelerator Based SciencesSomerset WestSouth Africa
  4. 4.Faculty of PhysicsUniversity of SofiaSofiaBulgaria

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