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Quadrupole moment measurement of the highly deformed πg9/2⊗νh11/2 band in 130Pr

  • F.G. Kondev
  • M.A. Riley
  • T.B. Brown
  • R.M. Clark
  • M. Devlin
  • P. Fallon
  • D.J. Hartley
  • I.M. Hibbert
  • D.T. Joss
  • D.R. LaFosse
  • R.W. Laird
  • F. Lerma
  • M. Lively
  • P.J. Nolan
  • N.J. O'Brien
  • E.S. Paul
  • J. Pfohl
  • D.G. Sarantites
  • R.K. Sheline
  • S.L. Shepherd
  • J. Simpson
  • R. Wadsworth
Short notes

Abstract:

The quadrupole moment for the πg9/2⊗νh11/2 band in the 130>Pr nucleus has been measured using the Doppler-shift attenuation method. A centroid shift analysis was carried out and a value of Q0=6.1±0.4 eb, corresponding to an axial prolate deformation of β2=0.35(3), has been determined. This is the first direct experimental confirmation of the deformation-driving character of the πg9/2 orbital in an odd-odd nucleus in the A≃135 superdeformed region.

PACS:21.10.Tg Lifetimes – 21.10.Re Collective levels – 23.20.Lv Gamma transitions and level energies – 27.60.+j 90 ≤ A ≤ 149 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • F.G. Kondev
    • 1
  • M.A. Riley
    • 1
  • T.B. Brown
    • 1
  • R.M. Clark
    • 2
  • M. Devlin
    • 3
  • P. Fallon
    • 2
  • D.J. Hartley
    • 1
  • I.M. Hibbert
    • 4
  • D.T. Joss
    • 5
  • D.R. LaFosse
    • 3
  • R.W. Laird
    • 1
  • F. Lerma
    • 3
  • M. Lively
    • 1
  • P.J. Nolan
    • 5
  • N.J. O'Brien
    • 4
  • E.S. Paul
    • 5
  • J. Pfohl
    • 1
  • D.G. Sarantites
    • 3
  • R.K. Sheline
    • 1
  • S.L. Shepherd
    • 5
  • J. Simpson
    • 6
  • R. Wadsworth
    • 4
  1. 1.Department of Physics, Florida State University, Tallahassee, FL 32306, USAUS
  2. 2.Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USAUS
  3. 3.Department of Chemistry, Washington University, St. Louis, MO 63130, USAUS
  4. 4.Department of Physics, University of York, Heslington, York Y01 5DD, UKGB
  5. 5.Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UKGB
  6. 6.CCLRC, Daresbury Laboratory, Daresbury, Warrington WA4 4AD, UKGB

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