Shape coexistence in Hg186 and the decay of Tl186

J. D. Cole, A. V. Ramayya, J. H. Hamilton, H. Kawakami, B. van Nooijen, W. G. Nettles, L. L. Riedinger, F. E. Turner, C. R. Bingham, H. K. Carter, E. H. Spejewski, R. L. Mlekodaj, W. D. Schmidt-Ott, E. F. Zganjar, K. S. R. Sastry, F. T. Avignone, III, K. S. Toth, and M. A. Ijaz
Phys. Rev. C 16, 2010 – Published 1 November 1977
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Abstract

Details of the identification of Tl186 and its decay to Hg186 as investigated with an isotope separator are presented. Conversion electrons, γ, γγ, and eγ studies establish two bands in Hg186; one built on a near-spherical ground state and one on a more strongly deformed shape with a band head at 522 keV. The levels are discussed in the framework of recent theoretical calculations.

RADIOACTIVITY Tl186, Tlm186 from Ta181(O16,11n), E=145 MeV; W182(N14,10n), E=168 MeV; mass separated radioactivities. Measured T12, Eγ, Ece, Iγ, Ice, γγ coin, eγ coin, ICC, Hg186 deduced levels, I, π, multipolarities.

  • Received 20 June 1977

DOI:https://doi.org/10.1103/PhysRevC.16.2010

©1977 American Physical Society

Authors & Affiliations

J. D. Cole*,∥, A. V. Ramayya, J. H. Hamilton, H. Kawakami†,∥, B. van Nooijen‡,∥, and W. G. Nettles

  • Physics Department, Vanderbilt University, Nahsville, Tennessee 37235

L. L. Riedinger, F. E. Turner, and C. R. Bingham

  • Physics Department, University of Tennessee, Knoxville, Tennessee 37203

H. K. Carter**, E. H. Spejewski**, R. L. Mlekodaj**, and W. D. Schmidt-Ott§,**

  • UNISOR, Oak Ridge, Tennessee 37830

E. F. Zganjar

  • Physics Department, Louisiana State University, Baton Rouge, Louisiana 70803

K. S. R. Sastry

  • Physics Department, University of Massachusetts, Amherst, Massachusetts 01002

F. T. Avignone, III

  • Physics Department, University of South Carolina, Columbia, South Carolina 29208

K. S. Toth††

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37830

M. A. Ijaz

  • Physics Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24060

  • *Present address: Delft Technological University, Delft, Netherlands.
  • On leave from Institute for Nuclear Study, Tokyo, Japan.
  • Present address: Delft Technological University, Delft, Netherlands.
  • §Present address: Universität Göttingen, Göttingen, Germany.
  • Supported in part by grants from the National Science Foundation and the Energy Research and Development Administration.
  • Supported in part by separate University of Tennessee and Louisiana State University contracts.
  • **UNISOR is a consortium of the University of Alabama in Birmingham, Emory University, Furman University, Georgia Institute of Technology, University of Kentucky, Louisiana State University, University of Massachusetts, ORNL, Oak Ridge Associated Universities, University of South Carolina, University of Tennessee, Tennessee Technological University, Vanderbilt University, and Virginia Polytechnic Institute and State University and is supported by them and the U.S. ERDA.
  • ††Research supported by the U. S. ERDA under contract with Union Carbide.

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Vol. 16, Iss. 5 — November 1977

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