Measurement of e+e−→ϕπ+π− cross sections at center-of-mass energies from 2.00 to 3.08 GeV
M. Ablikim,М. Н. Ачасов,P. Adlarson,R. Aliberti,A. Amoroso,M. R. An,Q. An,Y. Bai,O. Bakina,I. Balossino,Y. Ban,V. Batozskaya,K. Begzsuren,N. Berger,M. Berlowski,M. Bertani,D. Bettoni,F. Bianchi,E. Bianco,J. Bloms,A. Bortone,I. R. Boyko,R. A. Briere,A. Brueggemann,H. Cai,X. Cai,A. Calcaterra,G. F. Cao,N. Cao,S. A. Çetin,J. F. Chang,T. T. Chang,W. L. Chang,G. R.,G. Chelkov,C. Chen,Chao Chen,G. Chen,H. S. Chen,M. L. Chen,S. J. Chen,S. M. Chen,T. Chen,X. R. Chen,X. T. Chen,Y. B. Chen,Y. Q. Chen,Z. J. Chen,W. S. Cheng,S. K. Choi,X. K. Chu,G. Cibinetto,S. C. Coen,F. Cossio,J. J. Cui,H. L. Dai,J. P. Dai,A. Dbeyssi,R. E. de Boer,D. Dedovich,Z. Y. Deng,A. Denig,I. Denysenko,M. Destefanis,F. De Mori,B. Ding,Xiaoning Ding,Y. Ding,Y. Ding,J. Dong,L. Y. Dong,M. Y. Dong,X. Dong,S. X. Du,Zhe Duan,P. Egorov,Y. L. Fan,J. Fang,S. S. Fang,W. Fang,Y. Fang,R. Farinelli,L. Fava,F. Feldbauer,G. Felici,C. Q. Feng,J. H. Feng,K. M. Fischer,M. Fritsch,C. Fritzsch,C. D. Fu,Y. Fu,He Gao,Yang Gao,Yang Gao,S. Garbolino,I. Garzia,P. Ge,Z. W. Ge,C. Geng,E. M. Gersabeck,A. Gilman,K. Goetzen,L. Gong,W. X. Gong,W. Gradl,S. Gramigna,M. Greco,M. H. Gu,Y. T. Gu,C. Y. Guan,Z. L. Guan,A. Q. Guo,L. B. Guo,R. P. Guo,Y. P. Guo,A. Guskov,X. Hou,W. Y. Han,X. Q. Hao,F. A. Harris,K. K. He,K. L. He,F. H. Heinsius,C. Heinz,Y. K. Heng,C. Herold,T. Holtmann,P. C. Hong,G. Y. Hou,Y. R. Hou,Z. L. Hou,H. M. Hu,J. Hu,T. Hu,Y. Hu,G. S. Huang,K. X. Huang,L. Q. Huang,X. T. Huang,Y. Huang,T. Hussain,N. Hüsken,W. Imoehl,M. Irshad,J. Jackson,S. Jaeger,S. Janchiv,J. H. Jeong,Q. Ji,Q. Ji,X. B. Ji,X. L. Ji,Y. Y. Ji,Z. K. Jia,P. C. Jiang,S. S. Jiang,T. J. Jiang,X. S. Jiang,Y. Jiang,J. B. Jiao,Z. Jiao,S. Jin,Y. Jin,M. Q. Jing,T. Johansson,X. K.,S. Kabana,N. Kalantar‐Nayestanaki,X. L. Kang,X. S. Kang,R. Kappert,M. Kavatsyuk,B. C. Ke,A. Khoukaz,R. Kiuchi,R. Kliemt,L. Koch,O. B. Kolcu,B. Kopf,M. Kuessner,A. Kupść,W. Kühn,J. J. Lane,J. S. Lange,P. Larin,A. Lavania,L. Lavezzi,Lei Tang,Z. H. Lei,H. Leithoff,M. Lellmann,T. Lenz,C. Li,C. Li,C. H. Li,Cheng Li,D. M. Li,F. Li,G. Li,H. Li,H. B. Li,H. J. Li,H. N. Li,Hui Li,J. R. Li,J. S. Li,J. W. Li,Ké Li,L. J. Li,L. K. Li,Lei Li,M. H. Li,P. R. Li,S. X. Li,T. Li,W. D. Li,W. G. Li,X. H. Li,X. L. Li,Xiaoyü Li,Y. G. Li,Z. J. Li,Z. X. Li,Z. Y. Li,Chao Liang,Han Liu,Han Liu,Han Liu,Y. F. Liang,Y. T. Liang,G. R. Liao,L. Z. Liao,J. Libby,A. Limphirat,D. X. Lin,Tao Lin,B. J. Liu,B. X. Liu,C. Liu,C. X. Liu,D. Liu,F. H. Liu,Fang Liu,Feng Liu,G. M. Liu,H. Liu,H. B. Liu,H. M. Liu,Huanhuan Liu,Huihui Liu,J. B. Liu,J. L. Liu,J. Y. Liu,K. Liu,K. Y. Liu,Ke Liu,Lu Liu,L. C. Liu,Lu Liu,M. H. Liu,P. L. Liu,Q. Liu,S. B. Liu,T. Liu,W. K. Liu,W. M. Liu,X. Liu,Yong Liu,Y. B. Liu,Z. A. Liu,Z. Q. Liu,X. Lou,F. X. Lu,H. J. Lü,J. G. Lü,X. L. Lu,Y. P. Lu,Y. P. Lu,Z. H. Lu,C. L. Luo,M. X. Luo,T. Luo,X. L. Luo,X. R. Lyu,Y. F. Lyu,F. C.,H.L. Ma,J. L.,L. L.,M. M.,Q. M.,R. Q.,R. T.,X. Y.,Y. Ma,F. E. Maas,M. Maggiora,S. Maldaner,S. Malde,A. Mangoni,Y. J. Mao,Z. P. Mao,S. Marcello,Z. Meng,J. G. Messchendorp,G. Mezzadri,H. Miao,T. J. Min,R. E. Mitchell,X. H. Mo,N. Yu. Muchnoi,Y. Nefedov,F. Nerling,I. B. Nikolaev,Z. Ning,S. Nisar,Y. Niu,S. L. Olsen,Q. Ouyang,S. Pacetti,X. Pan,Y. Pan,A. Pathak,P. Patterí,Y. P. Pei,M. Pelizaeus,H. Peng,K. Peters,J. L. Ping,R. G. Ping,S. Plura,S. Pogodin,V. Prasad,F. Z. Qi,H. R. Qi,H. R. Qi,M. Qi,T. Y. Qi,S. Qian,W. Qian,C. F. Qiao,J. Qin,Qin Liu,X. P. Qin,X. S. Qin,Z. H. Qin,J. F. Qiu,S. Q. Qu,C. F. Redmer,K. J. Ren,A. Rivetti,V. Rodin,M. Rolo,G. Rong,Ch. Rosner,S. N. Ruan,N. Salone,A. Sarantsev,Y. Schelhaas,K. Schoenning,M. Scodeggio,K. Y. Shan,W. Shan,X. Y. Shan,J. F. Shangguan,L. G. Shao,M. Shao,C. P. Shen,H. F. Shen,W. H. Shen,X. Y. Shen,B. A. Shi,H. C. Shi,J. L. Shi,J. Y. Shi,Q. Q. Shi,R. S. Shi,X. Shi,J. J. Song,T. Z. Song,W. M. Song,Y. J. Song,Y. X. Song,S. Sosio,S. Spataro,F. Stieler,Y. J. Su,G. B. Sun,G. X. Sun,H. K. Sun,H. K. Sun,J. F. Sun,K. Sun,L. Sun,S. S. Sun,T. Sun,W. Y. Sun,Y. J. Sun,Y. J. Sun,Y. Z. Sun,Z. T. Sun,Y. X. Tan,C. J. Tang,G. Y. Tang,J. Tang,Y. A. Tang,L. Y Tao,Q. T. Tao,Martin Duy Tat,J. X. Teng,V. Thoren,W. H. Tian,W. H. Tian,Y. Tian,Zhen Tian,I. Uman,B. Wang,B. L. Wang,B L Wang,C. W. Wang,D. Y. Wang,Fan Wang,H. J. Wang,H. P. Wang,K. Wang,L. L. Wang,M. Wang,Meng Wang,S. Wang,S. Wang,T. Wang,T. J. Wang,W. Wang,W. Wang,W. H. Wang,W. P. Wang,X. Wang,X. F. Wang,X. J. Wang,X. L. Wang,Y. Wang,Y. D. Wang,Y. F. Wang,Y. H. Wang,Y. N. Wang,Y. Q. Wang,Yaqian Wang,Yi Wang,Z. Wang,Z. L. Wang,Z. Y. Wang,Ziyi Wang,D. H. Wei,D. H. Wei,F. Weidner,S. P. Wen,C. W. Wenzel,U. Wiedner,G. Wilkinson,M. Wolke,L. Wollenberg,C. Wu,Jian Wu,L. H. Wu,L. J. Wu,X. Wu,X. Wu,Y. Wu,Y. Wu,Z. Wu,L. Xia,X. M. Xian,T. Xiang,D. Xiao,G. Y. Xiao,H. Xiao,S. Y. Xiao,Y. L. Xiao,Z. J. Xiao,Changsheng Xie,X. H. Xie,Y. Xie,Y. Xie,Y. Xie,Z. P. Xie,T. Y. Xing,Chun Xu,C. Xu,G. F. Xu,Heng Xu,Q. J. Xu,W. Xu,X. P. Xu,Y. C. Xu,Z. P. Xu,Zhe Xu,F. Yan,L. Yan,W. B. Yan,W. C. Yan,Xu Yan,H. J. Yang,H. L. Yang,H. X. Yang,Tao Yang,Yifan Yang,Yifan Yang,Yifan Yang,Yifan Yang,Zhi Yang,M. Ye,M. H. Ye,J. H. Yin,You Zhou,B. X. Yu,C. X. Yu,G. Yu,T. Yu,X. D. Yu,C. Z. Yuan,L. Yuan,S. Yuan,X. Q. Yuan,Y. Yuan,Z. Y. Yuan,C. X. Yue,A. A. Zafar,F. R. Zeng,X. Zeng,Y. Zeng,Y. Zeng,X. Y. Zhai,Y. H. Zhan,A. Q. Zhang,B. L. Zhang,B. X. Zhang,D. H. Zhang,G. Y. Zhang,H. Zhang,H. H. Zhang,H. H. Zhang,H. Q. Zhang,H. Y. Zhang,J. J. Zhang,J. L. Zhang,J. Q. Zhang,J. W. Zhang,J. X. Zhang,J. Y. Zhang,J. Z. Zhang,Jianyu Zhang,Jiawei Zhang,L. M. Zhang,L. Q. Zhang,Lei Zhang,P. Zhang,Q. Y. Zhang,Shuihan Zhang,Shulei Zhang,X. D. Zhang,X. M. Zhang,X. Y. Zhang,X. Y. Zhang,Y. Zhang,Y. T. Zhang,Y. H. Zhang,Yan Zhang,Yao Zhang,Z. H. Zhang,Z. L. Zhang,Z. Y. Zhang,Z. Y. Zhang,G. Zhao,J. Z. Zhao,J. Zhao,J. Zhao,Zhao Liu,Ling Zhao,M. G. Zhao,S. J. Zhao,Y. B. Zhao,Y. X. Zhao,Z. Zhao,A. Zhemchugov,B. Zheng,J. P. Zheng,W. J. Zheng,Y. Zheng,B. Zhong,X. Zhong,H. Zhou,Zhou Li,X. Y. Zhou,X. K. Zhou,X. R. Zhou,X. Y. Zhou,Y. Z. Zhou,Jiang Zhu,K. Zhu,K. Zhu,L. X. Zhu,L. X. Zhu,S. H. Zhu,S. Q. Zhu,T. J. Zhu,W. J. Zhu,Y. Zhu,Z. A. Zhu,J. H. Zou,J. Zu
Physical review（2023）
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摘要
Using data corresponding to an integrated luminosity of 651 pb−1 accumulated at 22 center-of-mass energies from 2.00 to 3.08 GeV by the BESIII experiment, the process e+e−→ϕπ+π− is studied. The cross sections for e+e−→ϕπ+π− are consistent with previous results, but with improved precision. To measure the mass and width of the structure observed in the cross section line shape, a combine fit is performed after enhancing the contribution from ϕf0(980). The fit reveals a structure with the mass of M=2178±20±5 MeV/c2 and the width of Γ=140±36±16 MeV, where the first uncertainties are statistical and the second ones are systematic.Received 28 December 2021Accepted 18 July 2023DOI:https://doi.org/10.1103/PhysRevD.108.032011Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasParticle interactionsParticles & Fields
