The structure of high spin states in ¹⁸⁴Hg and ¹⁸⁶Hg

Authors

W. C. Ma, Vanderbilt University
A. V. Ramayya, Vanderbilt University
J. H. Hamilton, Vanderbilt University
S. J. Robinson, Vanderbilt University
J. D. Cole, Louisiana State University
E. F. Zganjar, Louisiana State University
E. H. Spejewski, Oak Ridge Associated Universities
R. Bengtsson, Joint Institute for Heavy Ion Research
W. Nazarewicz, Joint Institute for Heavy Ion Research
J. Y. Zhang, Joint Institute for Heavy Ion Research

Document Type

Article

Publication Date

2-13-1986

Abstract

The structure of 184Hg has been studied through the 156Gd(32S, 4n) reaction. The spins of the levels up to 18+ were established by measuring directional correlation ratios from oriented nuclei. Mean lifetimes of the levels from 8+ to 18+ were measured by the Doppler shift attenuation method. The deduced |β2| values are nearly constant to indicate a stable nuclear shape. The deformed band (up to tentative spin 24+) shows two upbendings at h {combining short stroke overlay}ω ∼ 0.26 MeV and h {combining short stroke overlay}ω ∼ 0.33 MeV. Cranked shell-model calculations suggest that these band-crossings can be associated with vi 13 2 and πh 9 2 pairs at prolate shape. A new interpretation of previously reported band structures in 186Hg is given. © 1986.

Publication Source (Journal or Book title)

Physics Letters B

First Page

277

Last Page

282

Recommended Citation

Ma, W., Ramayya, A., Hamilton, J., Robinson, S., Cole, J., Zganjar, E., Spejewski, E., Bengtsson, R., Nazarewicz, W., & Zhang, J. (1986). The structure of high spin states in ¹⁸⁴Hg and ¹⁸⁶Hg. Physics Letters B, 167 (3), 277-282. https://doi.org/10.1016/0370-2693(86)90345-X