New high-spin band structures in {sup 184}Hg

Journal Article · Tue Aug 01 00:00:00 EDT 1995 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.52.595· OSTI ID:112987

Deng, J K; Ma, W C; Hamilton, J H; Ramayya, A V; Kormicki, J; Gao, W B; Zhao, X; Shi, D T ^[1]; Lee, I Y; Garrett, J D; Johnson, N R; Winchell, D; Halbert, M; Baktash, C ^[2]

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1. Physics Department, Vanderbilt University, Nashville, Tennessee 37235 (United States)
2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

The high-spin states in {sup 184}Hg have been investigated via the {sup 154}Gd ({sup 32}S,4{ital n}) reaction at a beam energy of 160 MeV, with an array of Compton suppressed Ge detectors in the Spin Spectrometer at HHIRF. The ground state oblate band and excited prolate band were extended to 10{sup +} and 26{sup +}, respectively, and seven new bands are observed. A new band with odd spins, 13 to 25, has a much larger moment of inertia than the other bands in {sup 184}Hg. Two of the new bands feed the prolate excited band and are interpreted as quadrupole vibrational bands. Also, two new signature partner bands are observed for which the configuration of {nu}{ital i}{sub 13/2}{ital f}{sub 7/2} is proposed. The similarity of the band with odd spins to the band with intermediate deformation ({beta}{sub 2}{similar_to}0.34) in {sup 186}Hg, and signature partner bands to the bands observed in 104 isotones {sup 180}Os and {sup 182}Pt, is discussed.

• DOE Contract Number: FG05-88ER40407; AC05-84OR21400
• OSTI ID: 112987
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 52; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
66 PHYSICS
EXCITED STATES
GADOLINIUM 154 TARGET
GROUND STATES
HIGH SPIN STATES
HIGH-PURITY GE DETECTORS
MERCURY 184
MOMENT OF INERTIA
OSMIUM 180
PLATINUM 182
SPECTROMETERS
SULFUR 32 REACTIONS