β-Delayed γ Emissions of 26P and Its Mirror Asymmetry

作者：Hao Jian, Yufeng Gao, F. C. Dai, J. J. Liu, Xinxing Xu, Cenxi Yuan, Kazunari Kaneko, Yang Sun, Pengfei Liang, Guozhu Shi, L. J. Sun, L. Xayavong, Chengjian Lin, Jenny Lee, Zhihuan Li, Y. Y. Yang, Pengjie Li, Rui Fan, Sixian Zha, Hao-Fan Zhu, Jinhai Li, Qirui Gao, Zhaozhan Zhang, Ruofu Chen, J. Wang, Dong-Xi Wang, H. y. Wu, K. Wang, Y. H. Lam, Fangfang Duan, Peng Ma, Zhihao Gao, Qiang Hu, Zhen Bai, Jun-Bing Ma, Jian-Guo Wang, Fu-Peng Zhong, C. Wu, Diwen Luo, Y. Jiang, Yang Liu, D. S. Hou, Li Ren, Nan-Ru Ma, Weihu Ma, Gongming Yu, Dipika Patel, Shuya Jin, Yufeng Wang, Yuechao Yu, Qingwu Zhou, Peng Wang, Liyuan Hu, Xiang Wang, Hong-Liang Zang, Qingqing Zhao, L. Yang, Peiwei Wen, Feng Yang, Huiming Jia, Gaolong Zhang, Min Pan, Xiaoyu Wang, Haohan Sun, M. Wang, Zhengguo Hu, Xin‐Hui Zhou, Yuhu Zhang, X. Xu, Minliang Liu, H. J. Ong, Weiqing Yang · 发表于：Symmetry · 年份：2021 · DOI：10.3390/sym13122278 · 被引用次数：10 · 研究领域：Nuclear physics research studies、Quantum Chromodynamics and Particle Interactions、Neutrino Physics Research

The study of the origin of asymmetries in mirror β decay is extremely important to understand the fundamental nuclear force and the nuclear structure. The experiment was performed at the National Laboratory of Heavy Ion Research Facility in Lanzhou (HIRFL) to measure the β-delayed γ rays of 26P by silicon array and Clover-type high-purity Germanium (HPGe) detectors. Combining with results from the β decay of 26P and its mirror nucleus 26Na, the mirror asymmetry parameter δ ( ≡ft+/ft−− 1) was determined to be 46(13)% for the transition feeding the first excited state in the daughter nucleus. Our independent results support the conclusion that the large mirror asymmetry is close to the proton halo structure in 26P.