Tests of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math> symmetry in entangled <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi mathvariant="normal">Ξ</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>−</mml:mo><mml:msup><mml:mover accent="true"><mml:mi mathvariant="normal">Ξ</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover><mml:mn>0</mml:mn></mml:msup></mml:math> pairs

M. Ablikim(Institute of High Energy Physics), М. Н. Ачасов(Siberian Branch of the Russian Academy of Sciences), P. Adlarson(Uppsala University), X. Ai(Zhengzhou University), R. Aliberti(Johannes Gutenberg University Mainz), A. Amoroso(University of Turin), M. R. An(Liaoning Normal University), Q. An(University of Science and Technology of China), Y. Bai(Southeast University), O. Bakina(Joint Institute for Nuclear Research), I. Balossino(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), Y. Ban(Peking University), V. Batozskaya(National Centre for Nuclear Research), K. Begzsuren(Institute of Physics and Technology), N. Berger(Johannes Gutenberg University Mainz), M. Berlowski(National Centre for Nuclear Research), M. Bertani(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), D. Bettoni(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), F. Bianchi(University of Turin), E. Bianco(University of Turin), A. Bortone(University of Turin), I. Boyko(Joint Institute for Nuclear Research), R. A. Briere(Carnegie Mellon University), A. Brueggemann(University of Münster), H. Cai(Wuhan University), X. Cai(Institute of High Energy Physics), A. Calcaterra(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), G. F. Cao(Institute of High Energy Physics), N. Cao(Institute of High Energy Physics), S. A. Çetin(Istinye University), J. F. Chang(Institute of High Energy Physics), T. T. Chang(Xinyang Normal University), W. L. Chang(Institute of High Energy Physics), G. R.(Nankai University), G. Chelkov(Joint Institute for Nuclear Research), C. Chen(Nankai University), Chao Chen(Nankai University), G. Chen(Institute of High Energy Physics), Haifeng Chen(Institute of High Energy Physics), M. L. Chen(Institute of High Energy Physics), S. J. Chen(Nanjing University), S. M. Chen(Nanjing University), T. Chen(Institute of High Energy Physics), Xiaoyan Chen(Institute of Modern Physics), X. T. Chen(Institute of Modern Physics), Y. B. Chen(Jilin University), Y. Q. Chen(Jilin University), Z. J. Chen(Hunan University), W. S. Cheng(University of Turin), S. K. Choi(Chung-Ang University), X. Chu(Nankai University), G. Cibinetto(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), S. C. Coen(Ruhr University Bochum), F. Cossio(University of Turin), J. J. Cui(Shandong University), H. L. Dai(Institute of High Energy Physics), J. P. Dai(Yunnan University), A. Dbeyssi(Johannes Gutenberg University Mainz), R. E. de Boer(Ruhr University Bochum), D. Dedovich(Joint Institute for Nuclear Research), Z. Y. Deng(Institute of High Energy Physics), A. Denig(Johannes Gutenberg University Mainz), I. Denysenko(Joint Institute for Nuclear Research), M. Destefanis(University of Turin), F. De Mori(University of Turin), B. Ding(University of Jinan), X. X. Ding(Peking University), Y. Ding(Liaoning University), Y. Ding(Liaoning University), J. Dong(Institute of High Energy Physics), L. Y. Dong(Institute of High Energy Physics), M. Y. Dong(Institute of High Energy Physics), X. Dong(Wuhan University), M. C. Du(Institute of High Energy Physics), S. X. Du(Zhengzhou University), Z. H. Duan(Nanjing University), P. Egorov(Joint Institute for Nuclear Research), Y. L. Fan(Wuhan University), J. Fang(Institute of High Energy Physics), S. S. Fang(Institute of High Energy Physics), Wenxing Fang(Institute of High Energy Physics), Y. Fang(Institute of High Energy Physics), R. Farinelli(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), L. Fava(Università degli Studi del Piemonte Orientale “Amedeo Avogadro”), F. Feldbauer(Ruhr University Bochum), G. Felici(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), C. Q. Feng(University of Science and Technology of China), J. H. Feng(Sun Yat-sen University), K. Fischer(University of Oxford), M. Fritsch(Ruhr University Bochum), C. Fritzsch(University of Münster), C. D. Fu(Institute of High Energy Physics), J. Fu(University of Chinese Academy of Sciences), Y. W. Fu(Institute of High Energy Physics), He Gao(University of Chinese Academy of Sciences), Yang Gao(University of Science and Technology of China), Yang Gao(University of Science and Technology of China), S. Garbolino(University of Turin), I. Garzia(University of Ferrara), P. T. Ge(Wuhan University), Z. W. Ge(Nanjing University), C. Geng(Sun Yat-sen University), E. M. Gersabeck(University of Manchester), A. Gilman(University of Oxford), K. Goetzen(GSI Helmholtz Centre for Heavy Ion Research), L. Gong(Liaoning University), W. X. Gong(Institute of High Energy Physics), W. Gradl(Johannes Gutenberg University Mainz), S. Gramigna(University of Ferrara), M. Greco(University of Turin), M. H. Gu(Institute of High Energy Physics), Y. T. Gu(Guangxi University), C. Y. Guan(Institute of High Energy Physics), Z. L. Guan(Henan University of Technology), A. Q. Guo(Institute of Modern Physics), L. B. Guo(Nanjing Normal University), M. J. Guo(Shandong University), R. P. Guo(Shandong Normal University), Y. P. Guo(Fudan University), A. Guskov(Joint Institute for Nuclear Research), T. T. Han(Shandong University), W. Y. Han(Liaoning Normal University), X. Q. Hao(Henan Normal University), F. A. Harris(University of Hawaiʻi at Mānoa), K. K. He(Soochow University), K. L. He(Soochow University), F. H. Heinsius(Ruhr University Bochum), C. H. Heinz(Johannes Gutenberg University Mainz), Y. K. Heng(Institute of High Energy Physics), C. Herold(Suranaree University of Technology), T. Holtmann(Ruhr University Bochum), P. C. Hong(Fudan University), G. Y. Hou(Institute of High Energy Physics), X. T. Hou(Institute of High Energy Physics), Y. R. Hou(University of Chinese Academy of Sciences), Z. L. Hou(Institute of High Energy Physics), H. M. Hu(Institute of High Energy Physics), J. F. Hu(South China Normal University), T. Hu(Institute of High Energy Physics), Y. Hu(Institute of High Energy Physics), G. S. Huang(University of Science and Technology of China), K. X. Huang(Sun Yat-sen University), L. Q. Huang(Institute of Modern Physics), X. T. Huang(Shandong University), Y. Huang(Institute of High Energy Physics), T. Hussain(University of the Punjab), N. Hüsken(Johannes Gutenberg University Mainz), W. Imoehl(Indiana University Bloomington), M. Irshad(University of Science and Technology of China), P. Jackson(Indiana University Bloomington), S. Jaeger(Ruhr University Bochum), S. Janchiv(Institute of Physics and Technology), J. H. Jeong(Chung-Ang University), Q. P. Ji(Institute of High Energy Physics), Q. P. Ji(Institute of High Energy Physics), X. B. Ji(Institute of High Energy Physics), X. L. Ji(Institute of High Energy Physics), Y. Y. Ji(Shandong University), X. Q. Jia(Shandong University), Z. Jiao(University of Science and Technology of China), P. C. Jiang(Peking University), S. S. Jiang(Liaoning Normal University), T. J. Jiang(Hangzhou Normal University), X. S. Jiang(Institute of High Energy Physics), Y. Jiang(University of Chinese Academy of Sciences), J. B. Jiao(Shandong University), Z. Jiao(Huangshan University), S. Jin(Nanjing University), Y. Jin(University of Jinan), M. Q. Jing(Institute of High Energy Physics), T. Johansson(Uppsala University), X. K.(Institute of High Energy Physics), S. Kabana(University of Tarapacá), N. Kalantar-Nayestanaki(University of Groningen), X. L. Kang(Liaoning University), X. S. Kang(Liaoning University), R. Kappert(University of Groningen), M. Kavatsyuk(University of Groningen), B. C. Ke(Zhengzhou University), A. Khoukaz(University of Münster), R. Kiuchi(Institute of High Energy Physics), R. Kliemt(GSI Helmholtz Centre for Heavy Ion Research), O. B. Kolcu(Istinye University), B. Kopf(Ruhr University Bochum), M. Kuessner(Ruhr University Bochum), A. Kupść(Uppsala University), W. Kühn(Justus-Liebig-Universität Gießen), J. J. Lane(University of Manchester), P. Larin(Johannes Gutenberg University Mainz), A. Lavania(Indian Institute of Technology Madras), L. Lavezzi(University of Turin), T. T. Lei(University of Science and Technology of China), Z. H. Lei(University of Science and Technology of China), H. Leithoff(Johannes Gutenberg University Mainz), M. Lellmann(Johannes Gutenberg University Mainz), T. Lenz(Johannes Gutenberg University Mainz), C. Li(University of Science and Technology of China), C. Li(University of Science and Technology of China), C. H. Li(University of Science and Technology of China), Cheng Li(University of Science and Technology of China), D. M. Li(Zhengzhou University), F. Li(Institute of High Energy Physics), G. Li(Institute of High Energy Physics), H. Li(University of Science and Technology of China), H. B. Li(University of Science and Technology of China), H. J. Li(University of Science and Technology of China), H. N. Li(University of Science and Technology of China), Hui Li(University of Science and Technology of China), J. R. Li(Shandong University), J. S. Li(Shandong University), J. W. Li(Shandong University), K. L. Li(Institute of High Energy Physics), Ke Li(Institute of High Energy Physics), L. J Li(Beijing Institute of Petrochemical Technology), L. K. Li(Beijing Institute of Petrochemical Technology), Lei Li(Beijing Institute of Petrochemical Technology), M. H. Li(Nankai University), P. R. Li(Lanzhou University), Q. X. Li(Shandong University), S. X. Li(Fudan University), T. Li(Shandong University), W. D. Li(Institute of High Energy Physics), W. G. Li(Institute of High Energy Physics), X. H. Li(University of Science and Technology of China), X. L. Li(University of Science and Technology of China), Xiaoyu Li(University of Science and Technology of China), Y. G. Li(Peking University), Z. J. Li(Guangxi University), Z. X. Li(Guangxi University), C. Liang(Nanjing University), H. Liang(University of Science and Technology of China), H. Liang(University of Science and Technology of China), H. Liang(University of Science and Technology of China), Y. F. Liang(Sichuan University), Y. T. Liang(Sichuan University), G. R. Liao(Guangxi Normal University), L. Z. Liao(Shandong University), J. Libby(Indian Institute of Technology Madras), A. Limphirat(Suranaree University of Technology), D. X. Lin(Institute of Modern Physics), T. Lin(Institute of High Energy Physics), B. J. Liu(Wuhan University), B. X. Liu(Wuhan University), C. Liu(Jilin University), C. X. Liu(Jilin University), F. H. Liu(Shanxi University), Fang Liu(Shanxi University), Feng Liu(Shanxi University), G. M. Liu(South China Normal University), H. Liu(Guangxi University), H. B. Liu(Guangxi University), H. M. Liu(Guangxi University), Huanhuan Liu(Guangxi University), Huihui Liu(Guangxi University), J. B. Liu(University of Science and Technology of China), J. L. Liu(University of Science and Technology of China), J. Y. Liu(University of Science and Technology of China), K. Liu(Liaoning University), K. Y. Liu(Liaoning University), Ke Liu(Liaoning University), L. Liu(University of Science and Technology of China), L. C. Liu(University of Science and Technology of China), Lu Liu(University of Science and Technology of China), M. H. Liu(Fudan University), P. L. Liu(Institute of High Energy Physics), Q. Liu(University of Chinese Academy of Sciences), S. B. Liu(University of Science and Technology of China), T. Liu(Fudan University), W. K. Liu(University of Science and Technology of China), W. M. Liu(University of Science and Technology of China), X. Liu(Lanzhou University), Y. Liu(Nankai University), Y. Liu(Nankai University), Y. B. Liu(Nankai University), Z. A. Liu(Shandong University), Z. Q. Liu(Shandong University), X. Lou(Institute of High Energy Physics), F. X. Lu(Sun Yat-sen University), H. J. Lü(Huangshan University), J. G. Lü(Institute of High Energy Physics), X. L. Lu(Institute of High Energy Physics), Y. Lu(Central South University), Yi Lu(Central South University), Z. H. Lu(Institute of High Energy Physics), C. L. Luo(Nanjing Normal University), M. X. Luo(Zhejiang University), T. Luo(Fudan University), X. L. Luo(Institute of High Energy Physics), X. R. Lyu(University of Chinese Academy of Sciences), Y. F. Lyu(Nankai University), F. C.(Liaoning University), H. L.(Institute of High Energy Physics), J. L.(Institute of High Energy Physics), L. L.(Shandong University), M. M.(Institute of High Energy Physics), Q. M.(Institute of High Energy Physics), R. Q.(Institute of High Energy Physics), R. T.(University of Chinese Academy of Sciences), X. Y.(Institute of High Energy Physics), Y. Ma(Peking University), Y. M.(Institute of Modern Physics), F. E. Maas(Johannes Gutenberg University Mainz), M. Maggiora(University of Turin), S. Malde(University of Oxford), Q. A. Malik(University of the Punjab), A. Mangoni(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), Y. J. Mao(Peking University), Z. P. Mao(Institute of High Energy Physics), S. Marcello(University of Turin), Z. X. Meng(University of Jinan), J. G. Messchendorp(University of Groningen), G. Mezzadri(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), H. Miao(Institute of High Energy Physics), T. J. Min(Nanjing University), R. E. Mitchell(Indiana University Bloomington), X. H. Mo(Institute of High Energy Physics), N. Yu. Muchnoi(Siberian Branch of the Russian Academy of Sciences), Y. Nefedov(Joint Institute for Nuclear Research), F. Nerling(Johannes Gutenberg University Mainz), I. B. Nikolaev(Siberian Branch of the Russian Academy of Sciences), Z. Ning(Institute of High Energy Physics), S. Nisar(COMSATS University Islamabad), Y. Niu(Shandong University), S. L. Olsen(University of Chinese Academy of Sciences), Q. Ouyang(Institute of High Energy Physics), S. Pacetti(University of Perugia), X. Pan(Soochow University), Y. Pan(Southeast University), A. Pathak(Jilin University), P. Patteri(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), Y. P. Pei(University of Science and Technology of China), M. Pelizaeus(Ruhr University Bochum), H. P. Peng(University of Science and Technology of China), Κ. Peters(GSI Helmholtz Centre for Heavy Ion Research), J. L. Ping(Nanjing Normal University), R. G. Ping(Institute of High Energy Physics), S. Plura(Johannes Gutenberg University Mainz), S. Pogodin(Joint Institute for Nuclear Research), V. Prasad(University of Tarapacá), F. Z. Qi(Institute of High Energy Physics), H. R. Qi(University of Science and Technology of China), H. R. Qi(University of Science and Technology of China), M. Qi(Nanjing University), T. Y. Qi(Fudan University), S. Qian(Institute of High Energy Physics), W. B. Qian(University of Chinese Academy of Sciences), C. F. Qiao(University of Chinese Academy of Sciences), J. J. Qin(University of South China), L. Q. Qin(Guangxi Normal University), X. P. Qin(Shandong University), X. S. Qin(Shandong University), H. R. Qi(Institute of High Energy Physics), J. F. Qiu(Institute of High Energy Physics), S. Q. Qu(Tsinghua University), C. F. Redmer(Johannes Gutenberg University Mainz), K. J. Ren(Liaoning Normal University), A. Rivetti(University of Turin), V. Rodin(University of Groningen), M. Rolo(University of Turin), G. Rong(Institute of High Energy Physics), Ch. Rosner(Johannes Gutenberg University Mainz), S. N. Ruan(Nankai University), N. Salone(National Centre for Nuclear Research), A. Sarantsev(Joint Institute for Nuclear Research), Y. Schelhaas(Johannes Gutenberg University Mainz), K. Schoenning(Uppsala University), M. Scodeggio(University of Ferrara), K. Y. Shan(Fudan University), W. Shan(Hunan Normal University), X. Y. Shan(University of Science and Technology of China), J. F. Shangguan(Soochow University), L. G. Shao(Institute of High Energy Physics), M. Shao(University of Science and Technology of China), C. P. Shen(Fudan University), H. F. Shen(Institute of High Energy Physics), W. H. Shen(University of Chinese Academy of Sciences), X. Y. Shen(Institute of High Energy Physics), B. A. Shi(University of Chinese Academy of Sciences), H. C. Shi(University of Science and Technology of China), J. L. Shi(Fudan University), J. Y. Shi(Fudan University), Q. Q. Shi(Soochow University), R. S. Shi(Institute of High Energy Physics), X. Shi(Institute of High Energy Physics), J. J. Song(Henan Normal University), T. Z. Song(Sun Yat-sen University), W. M. Song(Jilin University), Y. J. Song(Peking University), Y. X. Song(Peking University), S. Sosio(University of Turin), S. Spataro(University of Turin), F. Stieler(Johannes Gutenberg University Mainz), Y. J. Su(University of Chinese Academy of Sciences), G. B. Sun(Wuhan University), G. X. Sun(Wuhan University), H. K. Sun(Institute of High Energy Physics), H. K. Sun(Institute of High Energy Physics), J. F. Sun(Henan Normal University), Kuan Sun(Tsinghua University), L. Sun(Wuhan University), S. S. Sun(Institute of High Energy Physics), T. Sun(Institute of High Energy Physics), W. Y. Sun(Jilin University), Y. Sun(University of Science and Technology of China), Y. J. Sun(University of Science and Technology of China), Y. Z. Sun(University of Science and Technology of China), Z. T. Sun(Shandong University), Y. X. Tan(University of Science and Technology of China), C. J. Tang(Sichuan University), G. Y. Tang(Institute of High Energy Physics), J. Tang(Sun Yat-sen University), Y. A. Tang(Wuhan University), L. Y. Tao(University of South China), Q. T. Tao(Hunan University), M. Tat(University of Oxford), J. X. Teng(University of Science and Technology of China), V. Thoren(Uppsala University), W. H. Tian(Sun Yat-sen University), W. H. Tian(Sun Yat-sen University), Y. Tian(Institute of Modern Physics), Z. F. Tian(Wuhan University), I. Uman(Near East University), S. J. Wang(Shandong University), B. Wang(University of Science and Technology of China), B. L. Wang(University of Science and Technology of China), Bo Wang(University of Science and Technology of China), C. W. Wang(Nanjing University), D. Y. Wang(Peking University), F. Wang(University of South China), H. J. Wang(Institute of High Energy Physics), H. P. Wang(Institute of High Energy Physics), J. P. Wang(Shandong University), K. Wang(Institute of High Energy Physics), L. L. Wang(Institute of High Energy Physics), Meng Wang(Shandong University), Meng Wang(Shandong University), S. Wang(Shandong University), S. Wang(Shandong University), T. Wang(Nankai University), T. J. Wang(Nankai University), W. Wang(University of Science and Technology of China), W. Wang(University of Science and Technology of China), W. P. Wang(University of Science and Technology of China), X. Wang(Liaoning Normal University), X. F. Wang(Liaoning Normal University), X. J. Wang(Liaoning Normal University), X. L. Wang(Liaoning Normal University), Y. Wang(North China Electric Power University), Y. D. Wang(North China Electric Power University), Y. F. Wang(North China Electric Power University), Y. H. Wang(North China Electric Power University), Y. N. Wang(North China Electric Power University), Y. Q. Wang(North China Electric Power University), Yaqian Wang(North China Electric Power University), Yi Wang(North China Electric Power University), Z. Wang(Institute of High Energy Physics), Z. L. Wang(Institute of High Energy Physics), Z. Y. Wang(Institute of High Energy Physics), Ziyi Wang(Institute of High Energy Physics), D. H. Wei(University of Science and Technology Liaoning), D. H. Wei(University of Science and Technology Liaoning), F. Weidner(University of Münster), S. P. Wen(Institute of High Energy Physics), C. W. Wenzel(Ruhr University Bochum), U. Wiedner(Ruhr University Bochum), G. Wilkinson(University of Oxford), M. Wolke(Uppsala University), L. Wollenberg(Ruhr University Bochum), C. Wu(Liaoning Normal University), J. F. Wu(Institute of High Energy Physics), L. H. Wu(Institute of High Energy Physics), L. J. Wu(Institute of High Energy Physics), X. Wu(Jilin University), X. Wu(Jilin University), Y. Wu(University of Science and Technology of China), Y. J. Wu(University of Science and Technology of China), Z. Wu(Institute of High Energy Physics), L. Xia(University of Science and Technology of China), X. M. Xian(Liaoning Normal University), T. Xiang(Peking University), D. Xiao(Lanzhou University), G. Y. Xiao(Nanjing University), H. Xiao(Fudan University), S. Y. Xiao(Institute of High Energy Physics), Y. L. Xiao(Fudan University), Z. J. Xiao(Nanjing Normal University), Changsheng Xie(Nanjing University), X. H. Xie(Peking University), Y. G. Xie(Shandong University), Y. G. Xie(Shandong University), Y. H. Xie(Shandong University), Z. P. Xie(University of Science and Technology of China), T. Y. Xing(Institute of High Energy Physics), C. F. Xu(Sun Yat-sen University), C. J. Xu(Sun Yat-sen University), G. F. Xu(Institute of High Energy Physics), H. Y. Xu(University of Jinan), Q. Xu(Hangzhou Normal University), Q. N. Xu(Hangzhou Normal University), W. Xu(University of Jinan), W. L. Xu(University of Jinan), X. P. Xu(Soochow University), Y. C. Xu(Yantai University), Z. P. Xu(University of Chinese Academy of Sciences), Z. S. Xu(University of Chinese Academy of Sciences), F. Yan(Fudan University), L. Yan(Fudan University), W. B. Yan(University of Science and Technology of China), W. C. Yan(University of Science and Technology of China), Xu Yan(Institute of High Energy Physics), H. J. Yang(Shanghai Jiao Tong University), H. L. Yang(Shanghai Jiao Tong University), H. X. Yang(Shanghai Jiao Tong University), Tao Yang(Institute of High Energy Physics), Y. Yang(Nankai University), Y. F. Yang(Nankai University), Yifan Yang(Nankai University), Yifan Yang(Nankai University), Z. W. Yang(Lanzhou University), Z. P. Yao(Shandong University), Meng Ye(Institute of High Energy Physics), M. H. Ye(Institute of High Energy Physics), J. H. Yin(Institute of High Energy Physics), Z. Y. You(Sun Yat-sen University), B. X. Yu(Institute of High Energy Physics), C. X. Yu(Nankai University), G. Yu(Institute of High Energy Physics), J. S. Yu(Hunan University), T. Yu(University of South China), X. D. Yu(Peking University), C. Z. Yuan(Institute of High Energy Physics), L. Yuan(Beihang University), S. C. Yuan(Institute of High Energy Physics), X. Q. Yuan(Institute of High Energy Physics), Y. Yuan(Institute of High Energy Physics), Z. Y. Yuan(Sun Yat-sen University), C. X. Yue(Liaoning Normal University), A. A. Zafar(University of the Punjab), F. R. Zeng(Shandong University), X. Zeng(Fudan University), Y. Zeng(Hunan University), Yu Zeng(Hunan University), X. Y. Zhai(Jilin University), Y. C. Zhai(Shandong University), Y. H. Zhan(Sun Yat-sen University), A. Q. Zhang(Institute of High Energy Physics), B. L. Zhang(Institute of High Energy Physics), B. X. Zhang(Institute of High Energy Physics), D. H. Zhang(Nankai University), G. Y. Zhang(Henan Normal University), H. Zhang(University of Science and Technology of China), H. H. Zhang(University of Science and Technology of China), H. H. Zhang(University of Science and Technology of China), H. Q. Zhang(University of Science and Technology of China), H. Y. Zhang(University of Science and Technology of China), J. J. Zhang(Nanjing Normal University), J. L. Zhang(Nanjing Normal University), J. Q. Zhang(Nanjing Normal University), J. W. Zhang(Nanjing Normal University), J. X. Zhang(Nanjing Normal University), J. Y. Zhang(Nanjing Normal University), J. Z. Zhang(Nanjing Normal University), Jianyu Zhang(Nanjing Normal University), Jiawei Zhang(Nanjing Normal University), L. M. Zhang(Sun Yat-sen University), L. Q. Zhang(Sun Yat-sen University), Lei Zhang(Sun Yat-sen University), P. Zhang(Institute of High Energy Physics), Q. Y. Zhang(Liaoning Normal University), Shuihan Zhang(Hunan University), Shulei Zhang(Hunan University), X. D. Zhang(North China Electric Power University), Xiang Zhang(North China Electric Power University), X. Y. Zhang(North China Electric Power University), X. Y. Zhang(North China Electric Power University), Yanfei Zhang(University of Science and Technology of China), Yanfei Zhang(University of Science and Technology of China), Y. T. Zhang(University of Science and Technology of China), Y. H. Zhang(University of Science and Technology of China), Yan Zhang(University of Science and Technology of China), Yao Zhang(University of Science and Technology of China), Z. H. Zhang(Jilin University), Z. L. Zhang(Jilin University), Z. Y. Zhang(Jilin University), Z. Y. Zhang(Jilin University), G. Zhao(Institute of High Energy Physics), J. Zhao(Liaoning Normal University), J. Y. Zhao(Liaoning Normal University), Jijun Zhao(Liaoning Normal University), Lei Zhao(University of Science and Technology of China), Ling Zhao(University of Science and Technology of China), M. G. Zhao(Nankai University), Q. Zhao(Zhengzhou University), Y. B. Zhao(Institute of Modern Physics), Y. X. Zhao(Institute of Modern Physics), Z. G. Zhao(University of Science and Technology of China), A. Zhemchugov(Joint Institute for Nuclear Research), B. Zheng(University of South China), J. P. Zheng(Institute of High Energy Physics), W. J. Zheng(Institute of High Energy Physics), Y. Zheng(University of Chinese Academy of Sciences), B. Zhong(Nanjing Normal University), X. Zhong(Sun Yat-sen University), H. Zhou(Shandong University), L. P. Zhou(Institute of High Energy Physics), Xiaoyu Zhou(University of Science and Technology of China), X. K. Zhou(University of Science and Technology of China), X. R. Zhou(University of Science and Technology of China), X. Y. Zhou(University of Science and Technology of China), Y. Z. Zhou(Fudan University), Jiang Zhu(Nankai University), K. J. Zhu(Institute of High Energy Physics), K. J. Zhu(Institute of High Energy Physics), L. Zhu(Jilin University), L. Zhu(Jilin University), S. H. Zhu(University of Science and Technology Liaoning), S. Q. Zhu(University of Science and Technology Liaoning), T. J. Zhu(Fudan University), W. J. Zhu(Fudan University), Y. C. Zhu(University of Science and Technology of China), Z. A. Zhu(Institute of High Energy Physics), J. H. Zou(Institute of High Energy Physics), J. Zu(University of Science and Technology of China)
Physical review. D/Physical review. D.
August 23, 2023
Cited by 37Open Access
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Abstract

The J/ψ → Ξ0Ξ ̄ 0 process and subsequent decays are investigated using (10087 pm 44) x10^6 J/ψ events collected at the BESIII experiment. The decay parameters of Ξ0 and Ξ ̄ 0 are simultaneously measured to be α = −0.3750 pm 0.0034 pm 0016, α ̄ Ξ = 0.3790 pm 0.0034 pm 0.0021, φΞ = 0.0051 pm 0.0096 pm 0.0018 rad, φ ̄ Ξ = −0.0053 pm 0.0097 pm 0.0019 rad with unprecedented accuracies, where the first and the second uncertainties are statistical and systematic, respectively. The most precise values for CP asymmetry observables of Ξ0 decay are obtained to be AΞCP = (−5.4 pm 6.5 pm 3.1) x 10^-3 and DeltaPhi_CP = (−0.1 pm 6.9 pm 0.9) 10^-3 rad. For the first time, the weak and strong phase differences are determined to be ξP − ξS = (0.0 pm 1.7 pm 0.2)x10^-2 rad, which are the most precise results for any weakly decaying baryon. These results will play important roles in the studies of the CP violations and polarizations for the strange, charmed, and beauty baryons.


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