Level structure of odd-odd Sb134 populated in the β decays of Sn134,135

J. Shergur, A. Wöhr, W. B. Walters, K.-L. Kratz, O. Arndt, B. A. Brown, J. Cederkall, I. Dillmann, L. M. Fraile, P. Hoff, A. Joinet, U. Köster, and B. Pfeiffer
Phys. Rev. C 71, 064321 – Published 28 June 2005

Abstract

The level structure of odd-odd Sb134 has been studied at CERN/ISOLDE following the β decay of Sn134 and the β-delayed neutron decay of Sn135. Elemental and isobaric separation were accomplished by use of a resonance ionization laser ion source and an on-line mass separator, respectively. Both γ-ray singles and γγ coincidence data were taken as a function of time. New levels at 279, 441, 555, 617, and 1385 keV have been identified and given proposed spin and parity assignments of 7, 5, 6, 4, and 5, respectively, following β-delayed neutron decay of 7/2 Sn135. New 1 levels have been identified at 1900, 2170, and 2430 keV following the β decay of 0+ Sn134. The resulting level structures are compared to shell-model calculations using the CD Bonn interaction and scaled and unscaled Kuo-Herling interactions developed for the Pb208 region. Remarkably enough, the unscaled Kuo-Herling interaction provides the best fit for the levels below 1 MeV.

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  • Received 21 December 2004

DOI:https://doi.org/10.1103/PhysRevC.71.064321

©2005 American Physical Society

Authors & Affiliations

J. Shergur1,2, A. Wöhr1,3, W. B. Walters1, K.-L. Kratz4, O. Arndt4, B. A. Brown5, J. Cederkall6, I. Dillmann4, L. M. Fraile6,7, P. Hoff8, A. Joinet6, U. Köster6, and B. Pfeiffer4

  • 1Department of Chemistry, University of Maryland, College Park, Maryland, 20742-2021, USA
  • 2Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 3Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556
  • 4Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany
  • 5Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA
  • 6ISOLDE, PH Department, CERN, CH-1211 Genève 23, Switzerland
  • 7Departamento de Física Atómica Molecular y Nuclear, Universidad Complutense, E-28030 Madrid, Spain
  • 8Department of Chemistry, University of Oslo, NO-1163 Oslo, Norway

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Vol. 71, Iss. 6 — June 2005

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