Relative lifetimes, and the closely related quadrupole moments (Q[subscript]i values), of the
six superdeformed (SD) bands in �������Hg and the yrast SD band in �������Hg were determined
by a Doppler-shift attenuation method measurement. The experiment was performed
using the Gammasphere array and Lawrence Berkeley National Laboratory's 88-inch
Cyclotron. The Q[subscript]i values, which are a sensitive probe of the nuclear shape, of all the
�������Hg SD bands were found to be similar. This is the first accurate determination of the Q,
values of SD bands in an odd-A nucleus in the mass-190 region. Additionally, evidence is
presented for an unexpected difference in the Q[subscript]i values of the �������Hg and �������Hg SD bands.
There is an indication that the Q[subscript]i value of the �������Hg yrast SD band is approximately 15
percent greater that the Q[subscript]i values of the �������Hg SD bands. The results provide information
on the shape-driving effects of orbitals in the mass-190 region and imply that the
deformations of bands with identical transition energies are not necessarily the same. / Graduation date: 1997
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/34133 |
| Date | 06 May 1997 |
| Creators | Busse, Brian Craig |
| Contributors | Krane, Kenneth S. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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