High spin structure of 117I |
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Authors: | C-B Moon T Komatsubara T Shizuma Y Sasaki H Ishiyama T Jumatsu K Furuno |
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Institution: | (1) Department of Physics, Hoseo University, Chung-Nam 336-795, Korea, KR;(2) Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-8577, Japan, JP |
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Abstract: | High-spin states in 117I have been studied via the 103Rh(18O, 4n) reaction at a beam energy of 85 MeV. Many deformed rotational bands built on the proton h11/2, g7/2, and g9/2 orbitals have been identified. Among them, an unfavoured rotational band and a quasi-gamma band based on the h11/2 state have been newly observed. Moreover, positive-parity states above Iπ= 35/2+ reported in the previous work have been rearranged. Several energetically favoured states have been assigned to noncollective
oblate states based on various quasiparticle configurations with β2≈ 0.18–0.19 and γ= 60°.
Received: 1 March 1999 |
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Keywords: | PACS:21 10 Re Collective levels – 27 60 +j 90 ≤ A ≤ 149 |
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