Chirality of <math xmlns="http://www.w3.org/1998/Math/MathML"><mmultiscripts><mi>Sb</mi><mprescripts></mprescripts><none></none><mn>115</mn></mmultiscripts></math>: Further evidence for a new chiral island in the neutron-rich <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>A</mi><mo>≈</mo><mn>120</mn></mrow></math> mass region

G. Y. Li (李广有; S. Y. Wang (王守宇; Y. Zheng (郑云; W. Z. Xu (许文政; E. H. Wang (王恩宏; H. F. Bai (白洪斐; G. S. Li (李广顺; B. Qi (亓斌; C. Liu (刘晨; X. C. Han (韩星池; S. Wang (王硕; D. P. Sun (孙大鹏; Z. Q. Li (李志泉; H. Jia (贾慧; X. L. Luo (罗晓丽; Y. J. Li (李英健; X. Liu (刘鑫; S. W. Wei (魏苏伟; X. Xiao (肖骁; S. Q. Zuo (左思琪; L. Zhu (祝霖; H. Y. Zhang (张弘燚; X. G. Wu (吴晓光; C. B. Li (李聪博; H. Y. Wu (吴鸿毅; T. X. Li (李天晓; M. Zheng (郑敏; Z. H. Zhao (赵子豪; C. Y. He (贺创业; M. L. Liu (柳敏良

doi:10.1103/zd23-wc7l

Chirality of ${}^{115}{Sb}$ : Further evidence for a new chiral island in the neutron-rich $A \approx 120$ mass region

G. Y. Li (李广有)¹, S. Y. Wang (王守宇)^1,2,*, Y. Zheng (郑云)³, W. Z. Xu (许文政)¹, E. H. Wang (王恩宏)^1,2, H. F. Bai (白洪斐)¹, G. S. Li (李广顺)⁴, B. Qi (亓斌)^1,2, C. Liu (刘晨)^1,2 et al.

X. C. Han (韩星池)^1,2, S. Wang (王硕)^1,2, D. P. Sun (孙大鹏)^1,2, Z. Q. Li (李志泉)^1,2, H. Jia (贾慧)⁵, X. L. Luo (罗晓丽)¹, Y. J. Li (李英健)¹, X. Liu (刘鑫)¹, S. W. Wei (魏苏伟)¹, X. Xiao (肖骁)¹, S. Q. Zuo (左思琪)¹, L. Zhu (祝霖)¹, H. Y. Zhang (张弘燚)¹, X. G. Wu (吴晓光)³, C. B. Li (李聪博)³, H. Y. Wu (吴鸿毅)^6,7, T. X. Li (李天晓)³, M. Zheng (郑敏)³, Z. H. Zhao (赵子豪)^3,8, C. Y. He (贺创业)³, and M. L. Liu (柳敏良)⁴

¹Shandong Provincial Key Laboratory of Nuclear Science, Nuclear Energy Technology and Comprehensive Utilization, Weihai Frontier Innovation Institute of Nuclear Technology, School of Nuclear Science, Energy and Power Engineering, Shandong University, Shandong 250061, China
²WeiHai Research Institute of Industrial Technology of Shandong University, Weihai 264209, China
³China Institute of Atomic Energy, Beijing 102413, China
⁴Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
⁵School of Science, Harbin Institute of Technology, Weihai 264209, China
⁶Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China
⁷School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
⁸College of Physics, Jilin University, Changchun 130012, China

^*Contact author: sywang@sdu.edu.cn

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Phys. Rev. C 112, 054309 – Published 12 November, 2025

DOI: https://doi.org/10.1103/zd23-wc7l

Abstract

High-spin states in ${}^{115}{Sb}$ were populated using the reaction ${}^{109}{Ag}$ ( ${}^{12}C, α 2 n$ ) at a beam energy of 54 MeV. A new $Δ I = 1$ negative parity rotational band with several linking transitions to the existing negative-parity band has been identified. Based on the experimental results and their comparison with the relativistic mean-field and multiparticle plus rotor model calculations, a chiral character of the two bands based on the $π g_{9 / 2}^{- 1} \otimes υ h_{11 / 2} d_{3 / 2}$ configuration is proposed. This observation provides further evidence for a new chiral island in the neutron-rich $A \approx$ 120 mass region.

Physical Review C

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Chirality of ${}^{115}{Sb}$ : Further evidence for a new chiral island in the neutron-rich $A \approx 120$ mass region

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Chirality of Sb115: Further evidence for a new chiral island in the neutron-rich A≈120 mass region

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Chirality of ${}^{115}{Sb}$ : Further evidence for a new chiral island in the neutron-rich $A \approx 120$ mass region