| NUCLEAR PHYSICS |
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Proposed Chiral Doublet Bands in 98Tc |
DING Huai-Bo1,2, ZHU Sheng-Jiang1, WANG Jian-Guo1, GU Long1, XU Qiang1, XIAO Zhi-Gang1, YEOHA Eing-Yee1, ZHANG Ming1, ZHU Li-Hua3, WU Xiao-Guang3, LIU Ying3, HE Chuang-Ye3, WANG Lie-Lin3, PAN Bo3, LI Guang-Sheng3 |
| 1Department of Physics, Tsinghua University, Beijing 100084 230/F, No.101 Shaoyaoju Beili, Chaoyang District, Beijing 100029 3China Institute of Atomic Energy, Beijing 102413 |
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| Cite this article: |
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DING Huai-Bo, ZHU Sheng-Jiang, WANG Jian-Guo et al 2010 Chin. Phys. Lett. 27 072501 |
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Abstract High spin states in odd-odd 98Tc nuclei are studied by in-beam γ-ray spectroscopy with the 96Zr(6Li, 4n) fusion-evaporation reaction at a beam energy of 35 MeV. The previous level scheme is updated. A band based on 1090.7 keV is expanded, and another band based on 1920.6 keV is newly identified. The observed two negative parity bands in 98Tc are proposed to be a pair of chiral doublet bands with the configuration πg9/2  νh11/2. The evidence supporting the assignment of the chiral doublet bands is discussed. Signature splitting and signature inversion are observed in the πg9/2 ν h11/2 band in 98Tc.
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| Keywords:
25.85.Ca
21.10.Re
23.20.Lv
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Received: 30 March 2010
Published: 28 June 2010
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