High spin states in 71Ga Supported by the National Natural Science Foundation of China (U1932209, 11975315, U1867210, 11905134), the Leading Innovation Project under Grant (LC192209000701, LC202309000201), the Continuous Basic Scientific Research Project (BJ20002501, WDJC-2019-13), China National Nuclear Corporation (FA18000201),Chinese Physics C

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High spin states in 71Ga Supported by the National Natural Science Foundation of China (U1932209, 11975315, U1867210, 11905134), the Leading Innovation Project under Grant (LC192209000701, LC202309000201), the Continuous Basic Scientific Research Project (BJ20002501, WDJC-2019-13), China National Nuclear Corporation (FA18000201)
Chinese Physics C ( IF 3.6 ) Pub Date : 2021-07-26 , DOI: 10.1088/1674-1137/ac0098
Jian Zhong _{1,

2} , Li-Tao Deng _{1,

2} , Shi-Peng Hu ₁ , Xiao-Guang Wu ₂ , P. C. Srivastava ₃ , A. Saxena ₃ , Guang-Sheng Li ₂ , Yun Zheng ₂ , Cong-Bo Li ₂ , Qi-Ming Chen ₂ , Chuang-Ye He ₂ , Wen-Kui Zhou ₂ , Bao-Ji Zhu ₂ , Qi-Wen Fang ₂ , Hui Hua ₄ , Jun-Jie Sun ₄ , Hui-Bin Sun ₁ , Lin Gan ₁ , Hai-Ge Zhao ₁ , Qi Luo ₁ , Zheng-Xin Wu ₁

Affiliation

Excited states in the odd-A nucleus ⁷¹Ga have been studied via the ⁷⁰Zn(⁷Li, $\alpha2n$ )⁷¹Ga fusion-evaporation reaction with incident beam energies of 30 and 35 MeV. The level scheme is established up to spin $I^{\pi}$ = (29/2⁺) and an excitation energy $\sim$ 6.6 MeV. A previously known sequence built on the 9/2⁺ state is extended as a novel rotational band originating from the $\nu (g_{9/2}^2)$ alignment. Furthermore, a negative-parity sequence is also reported. The observed energy levels of ⁷¹Ga have been interpreted in the framework of the nuclear shell model (SM).

更新日期：2021-07-26

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