The bands in : possible antimagnetic rotation

M. Wang; W. J. Sun; B. H. Sun; J. Li; L. H. Zhu; Y. Zheng; G. L. Zhang; L. C. He; W. W. Qu; F. Wang; T. F. Wang; C. Xiong; C. Y. He; G. S. Li; J. L. Wang; X. G. Wu; S. H. Yao; C. B. Li; H. W. Li; S. P. Hu; J. J. Liu

doi:10.1140/epja/s10050-020-00039-6

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2024 Impact factor 2.8

Hadrons and Nuclei

Eur. Phys. J. A (2020) 56: 31
https://doi.org/10.1140/epja/s10050-020-00039-6

Regular Article – Experimental Physics

The $\varDelta I=2$ bands in $^{109}\hbox {In}$ : possible antimagnetic rotation

M. Wang¹, W. J. Sun², B. H. Sun¹^,3^*, J. Li², L. H. Zhu¹^,3, Y. Zheng⁴, G. L. Zhang¹^,3, L. C. He¹, W. W. Qu¹^,5, F. Wang¹, T. F. Wang¹^,3, C. Xiong¹, C. Y. He⁴, G. S. Li⁴, J. L. Wang⁴, X. G. Wu⁴, S. H. Yao⁴, C. B. Li², H. W. Li², S. P. Hu⁶ and J. J. Liu⁶

¹ School of Physics, Beihang University, Beijing, 100191, China
² College of Physics, Jilin University, Changchun, 130012, China
³ Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Beihang University, Beijing, 100083, China
⁴ China Institute of Atomic Energy, Beijing, 102413, China
⁵ State Key Laboratory of Radiation Medicine and Protection,School of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, China
⁶ College of Physics and Energy, Shenzhen University, Shenzhen, 518060, China

^* e-mail: bhsun@buaa.edu.cn

Received: 24 September 2019
Accepted: 3 December 2019
Published online: 4 February 2020

Abstract

The high-spin structure of $^{109}\hbox {In}$ was investigated with the $^{100}\hbox {Mo}(^{14}\hbox {N},\, 5\hbox {n})^{109}\hbox {In}$ fusion-evaporation reaction at CIAE, Beijing. Eleven new $\gamma$ -rays of $^{109}\hbox {In}$ were identified, by which the bandheads of the $\varDelta \textit{I}$ = 2 rotational bands were confirmed. The configurations were assigned with the help of the systematic discussion. Furthermore, the rotational bands are compared with the tilted-axis cranking calculations based on a relativistic mean-field approach. The rotational bands involving the 1p1h excitation to the $\pi d_{5/2}$ and $\pi g_{7/2}$ orbitals are suggested as candidates for antimagnetic rotation based on the theoretical results.