Low spin states in Yb162 and the X(5) critical point symmetry

E. A. McCutchan, N. V. Zamfir, M. A. Caprio, R. F. Casten, H. Amro, C. W. Beausang, D. S. Brenner, A. A. Hecht, C. Hutter, S. D. Langdown, D. A. Meyer, P. H. Regan, J. J. Ressler, and A. D. Yamamoto
Phys. Rev. C 69, 024308 – Published 26 February 2004

Abstract

Excited, nonyrast states in Yb162 were populated through β+ϵ decay and studied through off-beam, β-delayed γ-ray spectroscopy at the Yale moving tape collector. New coincidence data provided evidence for a substantial revision of the previous level scheme and the elimination of a previously reported first excited 0+ state. The revised level scheme of Yb162 is compared to the predictions of the X(5) critical point symmetry. Good agreement is obtained for most energies while significant discrepancies exist with the current values of intraband B(E2) values.

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  • Received 30 September 2003

DOI:https://doi.org/10.1103/PhysRevC.69.024308

©2004 American Physical Society

Authors & Affiliations

E. A. McCutchan1, N. V. Zamfir1, M. A. Caprio1, R. F. Casten1, H. Amro1, C. W. Beausang1, D. S. Brenner2, A. A. Hecht1, C. Hutter1,3,*, S. D. Langdown1,4, D. A. Meyer1, P. H. Regan1,4, J. J. Ressler1, and A. D. Yamamoto1,4

  • 1Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520, USA
  • 2Clark University, Worcester, Massachusetts 01610, USA
  • 3Technische Universität Darmstadt, 64289 Darmstadt, Germany
  • 4University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom

  • *Present address: Institut für Theoretische Festkörperphysik, Universität Karlsruhe, D-76128 Karlsruhe, Germany.

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Vol. 69, Iss. 2 — February 2004

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