First Observation of a Superdeformed Band in the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">N</mi><mo>,</mo><mi mathvariant="italic">Z</mi><mspace></mspace><mi mathvariant="italic">≈</mi><mspace></mspace><mn>40</mn></math></span> Mass Region

C. Baktash; D. M. Cullen; J. D. Garrett; C. J. Gross; N. R. Johnson; W. Nazarewicz; D. G. Sarantites; J. Simpson; T. R. Werner

doi:10.1103/PhysRevLett.74.1946

First Observation of a Superdeformed Band in the $N, Z \approx 40$ Mass Region

C. Baktash, D. M. Cullen, J. D. Garrett, C. J. Gross, N. R. Johnson, W. Nazarewicz, D. G. Sarantites, J. Simpson, and T. R. Werner

Phys. Rev. Lett. 74, 1946 – Published 13 March 1995

Abstract

A high-spin rotational band of ten transitions between 1305 and 2641 keV with a nearly constant moment of inertia $J^{(2)} = 27 ħ^{2} M eV^{- 1}$ has been observed and is tentatively assigned to $^{83}$ Sr. The properties of this band are in excellent agreement with theoretical calculations which predict the onset of superdeformation in and around $^{83}$ Sr at spins $I \approx 35 ħ$ . These results establish a new region of superdeformation in medium-mass nuclei with particle numbers $N, Z \approx 40$ .

Received 7 October 1994

DOI:https://doi.org/10.1103/PhysRevLett.74.1946

Authors & Affiliations

C. Baktash¹, D. M. Cullen¹, J. D. Garrett¹, C. J. Gross¹, N. R. Johnson¹, W. Nazarewicz^1,2,3, D. G. Sarantites⁴, J. Simpson⁵, and T. R. Werner^1,3,6

¹Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6371
²Joint Institute for Heavy Ion Research, Oak Ridge, Tennessee 37831
³Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
⁴Washington University, St. Louis, Missouri 63130
⁵Daresbury Laboratory, Warrington, WA4 4AD, United Kingdom
⁶Institute of Theoretical Physics, Warsaw University, PL-00-681 Warsaw, Poland