Possible Shape Transition in the Yrast Band of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Fe</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>56</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

N. Bendjaballah; J. Delaunay; T. Nomura; H. J. Kim

doi:10.1103/PhysRevLett.36.1536

Possible Shape Transition in the Yrast Band of ${}^{56}{Fe}$

N. Bendjaballah, J. Delaunay, T. Nomura, and H. J. Kim

Phys. Rev. Lett. 36, 1536 – Published 28 June 1976

Abstract

Spin and parity assignments and lifetime measurements on high-spin states of ${}^{56}{Fe}$ have been made by $γ$ -ray spectroscopy in various reactions. The results show that the first $6^{+}$ and $8^{+}$ states are not members of the ground-state rotational band with prolate deformation, indicating a sudden change in nuclear shape at $J > 4$ along the yrast band of ${}^{56}{Fe}$ .

Received 17 February 1976

DOI:https://doi.org/10.1103/PhysRevLett.36.1536

Authors & Affiliations

N. Bendjaballah^*, J. Delaunay, and T. Nomura^†

Département de Physique Nucléaire, Centre d'Etudes Nucléaires de Saclay, 91190 Gif-sur-Yvette, France

H. J. Kim^‡

Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

^*On leave of absence from Institut d'Etudes Nucléaires, Alger, Algeria.
^†On leave of absence from Institute of Physical and Chemical Research, Saitama, Japan.
^‡Operated by Union Carbide Corporation for the U. S. Energy Research and Development Administration.