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Deviations from axial symmetry in 181Os

Zs. Podolyák, S. Al-Garni, R.F. Casten, J.R Cooper, D.M. Cullen, A. Dewald, R. Krücken, H. Newman, J.N. Orce, C.J. Pearson, C. Ur, R. Venturelli, S. Vincent, C. Wheldon, P.M. Walker, F.R. Xu, A. Yamamoto, and N.V. Zamfir
Phys. Rev. C 66, 011304(R) – Published 31 July 2002
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Abstract

Lifetimes of rotational states built on the 7/2[514] and 1/2[521] Nilsson single-particle orbitals in 181Os have been measured using the coincidence recoil-distance method. The experimentally determined quadrupole moment, assuming axial symmetry, is 20% larger for the 7/2[514] band compared with the 1/2[521] band. The difference can be understood as an effect of triaxiality. Total Routhian surface calculations show deviations from axial symmetry for both bands, leading to good agreement between theory and experiment.

  • Received 10 May 2002

DOI:https://doi.org/10.1103/PhysRevC.66.011304

©2002 American Physical Society

Authors & Affiliations

Zs. Podolyák1, S. Al-Garni1, R.F. Casten2, J.R Cooper2,*, D.M. Cullen3, A. Dewald4, R. Krücken2, H. Newman1,2, J.N. Orce5, C.J. Pearson1, C. Ur6,†, R. Venturelli6, S. Vincent1, C. Wheldon7,‡, P.M. Walker1, F.R. Xu1,§, A. Yamamoto1, and N.V. Zamfir2,8,†

  • 1Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
  • 2A.W. Wright Nuclear Structure Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06520
  • 3Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
  • 4Institut für Kernphysik, Univesität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany
  • 5School of Engineering, University of Brighton, Brighton BN2 4GJ, United Kingdom
  • 6Dipartimento di Fisica and INFN, Sezione di Padova, Padova, Italy
  • 7Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
  • 8Clark University, Worchester, Massachusetts 01610

  • *Present address: Lawrence Livermore National Laboratory, Livermore, CA.
  • Permanent address: Institute of Physics and Nuclear Engineering, Bucharest, Romania.
  • Present address: Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
  • §Permanent address: Department of Technical Physics, Peking University, Beijing 100871, China.

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Vol. 66, Iss. 1 — July 2002

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