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Precision measurement of the branching fraction of J/ψ→K+K− via <mml:math xmlns:mml="http://www.w3.org/1998/Math/...

Authors
M. Ablikim,Q. An
P. Adlarson,X. Ji,R. Aliberti,A. Amoroso,M. An,Yukui Zhang,Z. Qin,T. Ma,Y. Ban,Hongliang Bao,V. Batozskaya,K. Begzsuren,N. Berger,M. Berłowski,M. Bertani,C. Bozzi,F. Bianchi,E. Bianco,A. Bortone,I. Boyko,R. Briere,Angela Brueggemann,Ö. Çakır,D. Campana,A. Calcaterra,G. Cao,N. Cao,S. Cetin,J. Chang,W. Chang,G. R.,G. Chelkov,C. Chen,Chao Chen,G. Chen,H. Chen,M. Chen,S. Chen,T. Chen,X. Chen,Y. Chen,Ying Chen,Z. Chen,S. Choi,G. Cibinetto,S. Coen,F. Cossio,J. Cui,H. Dai,J. Dai,A. Dbeyssi,R. Boer,J. Regie,Z. Deng,M. Distler,I. Denysenko,M. Destefanis,M. Greco,B. Ding,X. Ding,Y. Ding,J. Dong,L. Dong,M. Dong,X. Dong,M. Du,S. Du,Zhaoyun Duan,P. Egorov,Y. Fan,Jiyu Fang,S. Fang,W. Fang,M. Fanti,Y. Fang,R. Farinelli,J. Messchendorp,F. Feldbauer,G. Felici,C. Feng,Jianghe Feng,Y. Feng,K Fischer,M. Fritsch,C. Fu,A. Torreira,Y. Fu,Shixuan Du,Y. Gao,Yang Gao,S. Garbolino,I. Garzia,P. Ge,Zhiwei Ge,C. Geng,E. Gersabeck,A. Gilman,K. Goetzen,W. Gradl,W. Gong,S. Gramigna,M. Gu,Yu Gu,C. Guan,Z. Guan,A. Guo,L. Guo,M. Guo,A. Guskov,J. Gutiérrez,K. Han,T. Han,W. Han,X. Hao,K. He,C. Heinz,Y. Heng,C. Herold,T. Holtmann,P. Hong,G. Hou,X. Hou,Y. Hou,Z. Hou,B. Hu,H. Hu,J. Hu,T. Hu,Y. Hu,G. Huang,K. Huang,L. Huang,X. Huang,Y. Huang,T. Hussain,N. Hüsken,N. Wiesche,M. Irshad,J. Jackson,S. Jaeger,S. Janchiv,Jae Jeong,Q. Ji,Y. Ji,Xiaoqing Jia,Z. Jia,H. Jiang,P. Jiang,S. Jiang,T. Jiang,X. Jiang,Y. Jiang,J. Jiao,Z. Jiao,J. Pena,Yi Jin,M. Jing,X. Jing,T. Johansson,X. K.,S. Jin,N. Kalantar‐Nayestanaki,Meng Wang,X. Kang,M. Kavatsyuk,R. Kliemt,V. Khachatryan,A. Khoukaz,B. Kopf,J. Lange,J. Lane,P. Larin,T. Lei,M. Lellmann,F. Maas,T. Lenz,Q. Li,C. Li,Cheng Li,D. Li,F. Li,G. Li,H. Li,Hui Li,J. Li,L. Li,Mingxi Li,S. Li,T. Li,W. Li,X. Li,Xiaoyu Li,Y. Li,Z. Li,Chaohui Liang,Liang Han,Y. Liang,G. Liao,L. Liao,Yi Liao,J. Libby,A. Limphirat,D. Lin,T. Lin,B. Liu,C. Liu,F. Liu,Fang Liu,Feng Liu,G. Liu,Бо Лю,H. Liu,Huanhuan Liu,Huihui Liu,J. Liu,Kai Liu,L. Liu,M. Liu,P. Liu,Q. Liu,S. Liu,Ting Liu,W. Liu,X. Liu,Y. Liu,Z. Liu,X. Lou,F. Lu,H. Lu,J. Lu,X. Lu,Yi Lu,Y. Lu,Zhun ,C. Luo,M. Luo,P. Luo,X. Luo,X. Lyu,Y. Lyu,Wei Wang,H. L.,J. L.,L. L.,M. M.,F. C.,R. Q.,X. Y.,Y. M.,M. Maggiora,G. Manca,A. Mangoni,Z. Mao,S. Marcello,H. Muramatsu,G. Mezzadri,Miao Hu,T. Min,R. Mitchell,B. Moses,N. Muchnoi,J. Muskalla,Y. Nefedov,F. Nerling,Z. Ning,S. Nisar,Q. Niu,W. Niu,Yunyun Niu,S. Olsen,S. Pacetti,X. Pan,Yi Pan,A. Pathak,P. Patteri,Y. Pei,M. Pelizaeus,H. Peng,Y. Peng,Κ. Peters,J. Ping,R. Poling,S. Plura,Vishnu Prasad,F. Qi,H. Qi,T. Qi,S. Qian,W. Qian,C. Qiao,J. Qin,L. Qin,X. Qin,J. Qiu,S. Qu,C. Redmer,K. Ren,A. Rivetti,M. Rolo,G. Rong,S. Ruan,N. Salone,Y. Schelhaas,M. Scodeggio,K. Shan,W. Shan,X. Shan,J. Shangguan,L. Shao,M. Shao,C. Shen,H. Shen,W. Shen,X. Shen,B. Shi,S. Spataro,J. Shi,Q. Shi,J. Song,T. Song,Y. Song,F. Stieler,Y. Su,G. Sun,Hao Sun,H. Sun,J. Sun,Kuan Sun,L. Sun,S. Sun,T. Sun,W. Sun,Y. Sun,Z. Sun,Y. Tan,C. Tang,G. Tang,J. Tang,Y. Tang,L. Tao,Q. Tao,T. Szumlak,J. Teng,V. Thoren,W. Tian,Y. Tian,Z. Tian,I. Uman,Yu Wan,Shijie Wang,Bo Wang,Bohan Wang,C. Wang,D. Wang,F. Wang,H. Wang,J. Wang,K. Wang,L. Wang,M. Wang,N. Wang,S. Wang,T. Wang,W. Wang,X. Wang,Y. Wang,Yaqian Wang,Yi Wang,Z. Wang,U. Wiedner,D. Wei,S. Wen,C. Wenzel,G. Wilkinson,M. Wolke,L. Wollenberg,Y. Wu,J. Wu,X. Xie,L. Wu,X. Wu,Yongjin Wu,Z. Wu,M. Wielers,X. Xian,T. Xiang,D. Xiao,G. Xiao,S. Xiao,Y. Xiao,Z. Xiao,Changsheng Xie,Y. Xie,Zhipeng Xie,T. Xing,C. Xu,G. Xu,H. Xu,Q. Xu,Qing Xu,W. Wiedenmann,W. Xu,B. Yabsley,Y. Xu,Zhipeng Xu,Zeshui Xu,F. Golf,L. Xu,M. Yamauchi,W. Yan,Xu Yan,H. Yang,Tao Yang,Yifan Yang,Y. Yang,Zhe Yang,Z. Yao,M. Ye,J. Yin,Z. You,C. Yuan,C. Yu,Geum Yu,T. Yu,Xudong Yu,S. Yuan,Y. Yuan,Z. Yuan,Chuan Yue,A. Zafar,F. Zeng,S. Zeng,X. Zeng,Y. Zeng,Yu‐Jia Zeng,X. Zhai,Yuling Zhai,Y. Zhan,A. Zhang,B. Zhang,D. Zhang,G. Zhang,H. Zhang,J. Zhang,Junwei Zhang,Jianyu Zhang,L. Zhang,Lei Zhang,P. Zhang,Qing Zhang,Shuihan Zhang,Shulei Zhang,X. Zhang,Yi Zhang,Y. Zhang,Yan Zhang,Yao Zhang,Z. Zhang,G. Zhao,E. Yazgan,J. Zhao,Lei Zhao,Ling Zhao,R. Zhao,S. Zhao,A. Zhemchugov,Y. Zhao,Z. Zhao,B. Zheng,J. Zheng,W. Zheng,Y. Zheng,B. Zhong,X. Zhong,D. Zanzi,L. Zhou,Xuyu Zhou,X. Zhou,Y. Zhou,J. Zhu,Kai Zhu,K. Zhu,Lei Zhu,L. Zhu,S. Zhu,T. Zhu,W. Zhu,Y. Zhu,Z. Zhu,J. Zou,Jean Zu,O. Çakır,Jianmeng Dong,Marcello Fanti,L. Fava
+495 authors
,Haibo Liu
Published
Aug 8, 2024
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Abstract

Using a sample of 448.1×106 ψ(2S) events collected with the BESIII detector, we perform a study of the decay J/ψK+K via ψ(2S)π+πJ/ψ. The branching fraction of J/ψK+K is determined to be BK+K=(3.072±0.023(stat)±0.050(syst))×104, which is consistent with previous measurements but with significantly improved precision. Published by the American Physical Society 2024

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