Description of ¹⁵⁸Er at Ultrahigh Spin in Nuclear Density Functional Theory

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Physical Review C

OSTI ID:1091694

Afanasjev, A. V. ^[1]; Shi, Yue ^[2]; Nazarewicz, Witold ^[3]

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1. Mississippi State University/JIHIR, ORNL
2. Peking University
3. UTK/ORNL/University of Warsaw

Rotational bands in 158Er at ultrahigh spin have been studied in the framework of relativistic and nonrelativistic nuclear density-functional theories. Consistent results are obtained across the theoretical models used but some puzzles remain when confronted with experiment. Namely, the many-body configurations which provide good description of experimental transition quadrupole moments and dynamic moments of inertia require substantial increase of the spins of observed bands as compared with experimental estimates, which are still subject to large uncertainties. If, however, the theoretical spin assignments turned out to be correct, experimental band 1 in 158Er would be the highest spin structure ever observed.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1091694
• Journal Information: Physical Review C, Vol. 86, Issue 3
• Country of Publication: United States
• Language: English