Behavior of the Excited Deformed Band and Search for Shape Isomerism in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Hg</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>184</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

J. D. Cole; J. H. Hamilton; A. V. Ramayya; W. G. Nettles; H. Kawakami; E. H. Spejewski; M. A. Ijaz; K. S. Toth; E. L. Robinson; K. S. R. Sastry; J. Lin; F. T. Avignone; W. H. Brantley; P. V. G. Rao

doi:10.1103/PhysRevLett.37.1185

Behavior of the Excited Deformed Band and Search for Shape Isomerism in ${}^{184}{Hg}$

J. D. Cole, J. H. Hamilton, A. V. Ramayya, W. G. Nettles, H. Kawakami, E. H. Spejewski, M. A. Ijaz, K. S. Toth, E. L. Robinson, K. S. R. Sastry, J. Lin, F. T. Avignone, W. H. Brantley, and P. V. G. Rao

Phys. Rev. Lett. 37, 1185 – Published 1 November 1976

Abstract

The new isotope ${}^{184}{Tl}$ has been identified with $T_{\frac{1}{2}} = 11 \pm 1$ sec and the levels in ${}^{184}{Hg}$ investigated from its decay. The $0^{+}$ band head of a deformed band was found to drop to 375 keV in agreement with theoretical predictions. The mean life of the 375-keV $0^{+}$ level was measured to be 0.9 ± 0.3 nsec which is a factor of 10 faster than theoretically predicted for a shape-isomeric $E 2$ transition.

Received 7 July 1976

DOI:https://doi.org/10.1103/PhysRevLett.37.1185

Authors & Affiliations

J. D. Cole^†, J. H. Hamilton^†, A. V. Ramayya^†, W. G. Nettles^†, and H. Kawakami^*,†

Physics Department, Vanderbilt University, Nashville, Tennessee 37325

E. H. Spejewski^‡

UNISOR, Oak Ridge, Tennessee 37830

M. A. Ijaz

Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

K. S. Toth^§

Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

E. L. Robinson

University of Alabama in Birmingham, Birmingham, Alabama 35294

K. S. R. Sastry

University of Massachusetts, Amherst, Massachusetts 01002

J. Lin

Tennessee Technological University, Cookeville, Tennessee 38501

F. T. Avignone

University of South Carolina, Columbia, South Carolina 29028

W. H. Brantley

Furman University, Greenville, South Carolina 29613

P. V. G. Rao

Emory University, Atlanta, Georgia 30322

^*On leave from the Institute for Nuclear Studies, Tokyo, Japan.
^†Work supported in part by a grant from the Energy Research and Development Administration.
^‡UNISOR is a consortium of fourteen institutions and is supported by them and by the U. S. Energy Research and Development Administration.
^§Research sponsored by the U. S. Energy Research and Development Administration under contract with Union Carbide Corporation.