Multi-Quasiparticle States in Odd-Odd I-118
- Authors
- Moon, C. -B.; Lee, C. S.; Oshima, M.; Toh, Y.; Goto, J.; Hatsukawa, Y.; Kimura, A.; Koizumi, M.; Osa, A.; Komatsubara, T.; Miyakawa, K.
- Issue Date
- Oct-2008
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Nuclear reactions; Cd-110(C-12, p3n)I-118; In-beam gamma-ray spectroscopy; Nuclear structure; Collective bands; Total Routhian surfaces calculations; Cranked shell model
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.53, no.4, pp 1844 - 1847
- Pages
- 4
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 53
- Number
- 4
- Start Page
- 1844
- End Page
- 1847
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/23602
- DOI
- 10.3938/jkps.53.1844
- ISSN
- 0374-4884
- Abstract
- The excited states of the doubly odd nucleus I-118 have been studied by using in-beam gamma-ray spectroscopy with the Cd-110(C-12, p3n) reaction at E-lab = 80 MeV. We have established several multi-quasi particle states associated with different proton and neutron quasiparticle configurations. A I-pi = 14(-) level at 2561 keV was newly observed and found to be associated with the pi h(11/2)nu d(5/2) configuration coupled to a pair of protons in the g(7/2) orbital. TRS calculations for the 14(-) level indicated a favored oblate state based on the fully aligned four-quasiparticle pi[h(11/2)(g(7/2))(2)](23/2)-nu[d(5/2)](5/2+) configuration. Another energetically favored state I-pi = 24(-) at 6216 keV could be interpreted as a noncollective oblate state from the fully aligned six-quasiparicle pi[h(11/2)(g(7/2))(2)](23/2)-nu[d(5/2)(h(11/2))(2)](25/2+) configuration. No Delta = 1 side band of the same parity as the pi h(11/2)nu h(11/2) band was observed while a side band built on the pi g(9/2 nu)h(11/2) configuration was considered to be caused by the gamma vibration coupling.
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