β-Delayed γ Emissions of 26P and Its Mirror Asymmetry
2021; Multidisciplinary Digital Publishing Institute; Volume: 13; Issue: 12 Linguagem: Inglês
10.3390/sym13122278
ISSN2073-8994
AutoresHao Jian, Yufeng Gao, F. C. Dai, J. J. Liu, Xinxing Xu, Cenxi Yuan, Kazunari Kaneko, Yang Sun, Pengfei Liang, G. Z. Shi, L. J. Sun, L. Xayavong, C. J. Lin, Jenny Lee, Zhihuan Li, Y. Y. Yang, Pengjie Li, Rui Fan, S. X. Zha, Hao-Fan Zhu, Jinhai Li, Qirui Gao, Zhaozhan Zhang, Chen Ruo-Fu, 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, Jianguo Wang, Fu-Peng Zhong, C. Wu, D. W. Luo, Y. Jiang, Yang Liu, D. S. Hou, Li Ren, Nan-Ru Ma, Wei-Hu Ma, Gongming Yu, Dipika Patel, Shuya Jin, Yijie Wang, Yuechao Yu, Qingwu Zhou, Peng Wang, Liyuan Hu, Xiang Wang, Hong-Liang Zang, Qing-Qing Zhao, L. Yang, Peiwei Wen, Feng Yang, H. M. 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,
Tópico(s)Neutrino Physics Research
ResumoThe 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.
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