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Electromagnetic properties of pseudo-Nilsson bands in 185Os

  • C. WheldonEmail author
  • A. E. Stuchbery
  • A. N. Wilson
  • G. D. Dracoulis
  • A. M. Bruce
  • R. A. Bark
  • A. P. Byrne
  • F. M. Prados-Estevez
  • G. J. Lane
  • C.-B. Moon
  • J. N. Orce
  • R. Wood
Article

Abstract.

New data have been obtained for 185Os following the 176Yb(13C,4n)185Os reaction, extendingthe pseudo-Nilsson \(\frac{1}{2}^{-},\frac{3}{2}^{-}[\mathaccent126{4}\mathaccent126{1}\mathaccent126{1}]\) doublet structure and the \(\frac{7}{2}^{-}[\mathaccent126{4}\mathaccent126{0}\mathaccent126{4}]\) band to significantly higher spins. Gamma-ray branching ratio data have been analysed to obtain extensive B(M1) and B(E2) ratios for intraband and interband transitions. The data are compared with particle-rotor calculations based on the pseudo-Nilsson potential and the Woods-Saxon potential. The results indicate that the pseudo-Nilsson approximation provides a good description of the \(\frac{1}{2}^{-}\), \(\frac{3}{2}^{-}[\mathaccent126{4}\mathaccent126{1}\mathaccent126{1}]\) bands up to the first band crossing;the difference in magnitude between the model predictions and data for the \(\frac{7}{2}^{-}[\mathaccent126{4}\mathaccent126{0}\mathaccent126{4}]\) band may be attributed to a lower deformation for the higher-K structure.

Keywords

Model Prediction Good Description Interband Transition Electromagnetic Property Ratio Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • C. Wheldon
    • 1
    • 2
    Email author
  • A. E. Stuchbery
    • 3
  • A. N. Wilson
    • 3
  • G. D. Dracoulis
    • 3
  • A. M. Bruce
    • 4
  • R. A. Bark
    • 3
  • A. P. Byrne
    • 3
    • 5
  • F. M. Prados-Estevez
    • 4
  • G. J. Lane
    • 3
  • C.-B. Moon
    • 3
    • 6
  • J. N. Orce
    • 4
  • R. Wood
    • 1
  1. 1.Department of PhysicsUniversity of SurreyUK
  2. 2.Kernphysik IIGesellschaft für SchwerionenforschungDarmstadtGermany
  3. 3.Department of Nuclear Physics, Research School of Physical Sciences and EngineeringThe Australian National UniversityCanberraAustralia
  4. 4.School of EngineeringUniversity of BrightonBrightonUK
  5. 5.Joint appointment with Department of Physics, The Faculties Australian National UniversityCanberraAustralia
  6. 6.Department of PhysicsHoseo UniversityChung-NamRepublic of Korea

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