학술논문
Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII
Document Type
article
Author
M. Ablikim; M.N. Achasov; P. Adlarson; S. Ahmed; M. Albrecht; R. Aliberti; A. Amoroso; M.R. An; Q. An; X.H. Bai; Y. Bai; O. Bakina; R. Baldini Ferroli; I. Balossino; Y. Ban; K. Begzsuren; N. Berger; M. Bertani; D. Bettoni; F. Bianchi; J. Bloms; A. Bortone; I. Boyko; R.A. Briere; H. Cai; X. Cai; A. Calcaterra; G.F. Cao; N. Cao; S.A. Cetin; J.F. Chang; W.L. Chang; G. Chelkov; D.Y. Chen; G. Chen; H.S. Chen; M.L. Chen; S.J. Chen; X.R. Chen; Y.B. Chen; Z.J. Chen; W.S. Cheng; G. Cibinetto; F. Cossio; X.F. Cui; H.L. Dai; X.C. Dai; A. Dbeyssi; R.E. de Boer; D. Dedovich; Z.Y. Deng; A. Denig; I. Denysenko; M. Destefanis; F. De Mori; Y. Ding; C. Dong; J. Dong; L.Y. Dong; M.Y. Dong; X. Dong; S.X. Du; Y.L. Fan; J. Fang; S.S. Fang; Y. Fang; R. Farinelli; L. Fava; F. Feldbauer; G. Felici; C.Q. Feng; J.H. Feng; M. Fritsch; C.D. Fu; Y. Gao; Y.G. Gao; I. Garzia; P.T. Ge; C. Geng; E.M. Gersabeck; A. Gilman; K. Goetzen; L. Gong; W.X. Gong; W. Gradl; M. Greco; L.M. Gu; M.H. Gu; S. Gu; Y.T. Gu; C.Y. Guan; A.Q. Guo; L.B. Guo; R.P. Guo; Y.P. Guo; A. Guskov; T.T. Han; W.Y. Han; X.Q. Hao; F.A. Harris; N. Hüsken; K.L. He; F.H. Heinsius; C.H. Heinz; T. Held; Y.K. Heng; C. Herold; M. Himmelreich; T. Holtmann; G.Y. Hou; Y.R. Hou; Z.L. Hou; H.M. Hu; J.F. Hu; T. Hu; Y. Hu; G.S. Huang; L.Q. Huang; X.T. Huang; Y.P. Huang; Z. Huang; T. Hussain; W. Ikegami Andersson; W. Imoehl; M. Irshad; S. Jaeger; S. Janchiv; Q. Ji; Q.P. Ji; X.B. Ji; X.L. Ji; Y.Y. Ji; H.B. Jiang; X.S. Jiang; J.B. Jiao; Z. Jiao; S. Jin; Y. Jin; M.Q. Jing; T. Johansson; N. Kalantar-Nayestanaki; X.S. Kang; R. Kappert; M. Kavatsyuk; B.C. Ke; I.K. Keshk; A. Khoukaz; P. Kiese; R. Kiuchi; R. Kliemt; L. Koch; O.B. Kolcu; B. Kopf; M. Kuemmel; M. Kuessner; A. Kupsc; M.G. Kurth; W. Kühn; J.J. Lane; J.S. Lange; P. Larin; A. Lavania; L. Lavezzi; Z.H. Lei; H. Leithoff; M. Lellmann; T. Lenz; C. Li; C.H. Li; Cheng Li; D.M. Li; F. Li; G. Li; H. Li; H.B. Li; H.J. Li; J.L. Li; J.Q. Li; J.S. Li; Ke Li; L.K. Li; Lei Li; P.R. Li; S.Y. Li; W.D. Li; W.G. Li; X.H. Li; X.L. Li; Xiaoyu Li; Z.Y. Li; H. Liang; Y.F. Liang; Y.T. Liang; G.R. Liao; L.Z. Liao; J. Libby; C.X. Lin; D.X. Lin; B.J. Liu; C.X. Liu; D. Liu; F.H. Liu; Fang Liu; Feng 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; L. Liu; M.H. Liu; P.L. Liu; Q. Liu; S.B. Liu; Shuai Liu; T. Liu; W.M. Liu; X. Liu; Y. Liu; Y.B. Liu; Z.A. Liu; Z.Q. Liu; X.C. Lou; F.X. Lu; H.J. Lu; J.D. Lu; J.G. Lu; X.L. Lu; Y. Lu; Y.P. Lu; C.L. Luo; M.X. Luo; P.W. Luo; T. Luo; X.L. Luo; S. Lusso; X.R. Lyu; F.C. Ma; H.L. Ma; L.L. Ma; M.M. Ma; Q.M. Ma; R.Q. Ma; R.T. Ma; X.X. Ma; X.Y. Ma; F.E. Maas; M. Maggiora; S. Maldaner; S. Malde; Q.A. Malik; A. Mangoni; Y.J. Mao; Z.P. Mao; S. Marcello; Z.X. Meng; J.G. Messchendorp; G. Mezzadri; T.J. Min; R.E. Mitchell; X.H. Mo; Y.J. Mo; N.Yu. Muchnoi; H. Muramatsu; S. Nakhoul; Y. Nefedov; F. Nerling; I.B. Nikolaev; Z. Ning; S. Nisar; S.L. Olsen; Q. Ouyang; S. Pacetti; X. Pan; Y. Pan; A. Pathak; P. Patteri; M. Pelizaeus; H.P. Peng; K. Peters; J. Pettersson; J.L. Ping; R.G. Ping; R. Poling; V. Prasad; H. Qi; H.R. Qi; K.H. Qi; M. Qi; T.Y. Qi; S. Qian; W.B. Qian; Z. Qian; C.F. Qiao; L.Q. Qin; X.P. Qin; X.S. Qin; Z.H. Qin; J.F. Qiu; S.Q. Qu; K.H. Rashid; K. Ravindran; C.F. Redmer; A. Rivetti; V. Rodin; M. Rolo; G. Rong; Ch. Rosner; M. Rump; H.S. Sang; A. Sarantsev; Y. Schelhaas; C. Schnier; K. Schoenning; M. Scodeggio; D.C. Shan; W. Shan; X.Y. Shan; J.F. Shangguan; M. Shao; C.P. Shen; H.F. Shen; P.X. Shen; X.Y. Shen; H.C. Shi; R.S. Shi; X. Shi; X.D. Shi; J.J. Song; W.M. Song; Y.X. Song; S. Sosio; S. Spataro; K.X. Su; P.P. Su; F.F. Sui; G.X. Sun; H.K. Sun; J.F. Sun; L. Sun; S.S. Sun; T. Sun; W.Y. Sun; X. Sun; Y.J. Sun; Y.K. Sun; Y.Z. Sun; Z.T. Sun; Y.H. Tan; Y.X. Tan; C.J. Tang; G.Y. Tang; J. Tang; J.X. Teng; V. Thoren; W.H. Tian; I. Uman; B. Wang; C.W. Wang; D.Y. Wang; H.J. Wang; H.P. Wang; K. Wang; L.L. Wang; M. Wang; M.Z. Wang; Meng Wang; W. Wang; W.H. Wang; W.P. Wang; X. Wang; X.F. Wang; X.L. Wang; Y. Wang; Y.D. Wang; Y.F. Wang; Y.Q. Wang; Y.Y. Wang; Z. Wang; Z.Y. Wang; Ziyi Wang; Zongyuan Wang; D.H. Wei; P. Weidenkaff; F. Weidner; S.P. Wen; D.J. White; U. Wiedner; G. Wilkinson; M. Wolke; L. Wollenberg; J.F. Wu; L.H. Wu; L.J. Wu; X. Wu; Z. Wu; L. Xia; H. Xiao; S.Y. Xiao; Z.J. Xiao; X.H. Xie; Y.G. Xie; Y.H. Xie; T.Y. Xing; G.F. Xu; Q.J. Xu; W. Xu; X.P. Xu; Y.C. Xu; F. Yan; L. Yan; W.B. Yan; W.C. Yan; Xu Yan; H.J. Yang; H.X. Yang; L. Yang; S.L. Yang; Y.X. Yang; Yifan Yang; Zhi Yang; M. Ye; M.H. Ye; J.H. Yin; Z.Y. You; B.X. Yu; C.X. Yu; G. Yu; J.S. Yu; T. Yu; C.Z. Yuan; L. Yuan; X.Q. Yuan; Y. Yuan; Z.Y. Yuan; C.X. Yue; A. Yuncu; A.A. Zafar; X. Zeng; Y. Zeng; A.Q. Zhang; B.X. Zhang; Guangyi Zhang; H. Zhang; H.H. Zhang; H.Y. Zhang; J.J. Zhang; J.L. Zhang; J.Q. Zhang; J.W. Zhang; J.Y. Zhang; J.Z. Zhang; Jianyu Zhang; Jiawei Zhang; L.Q. Zhang; Lei Zhang; S. Zhang; S.F. Zhang; Shulei Zhang; X.D. Zhang; X.Y. Zhang; Y. Zhang; Y.H. Zhang; Y.T. Zhang; Yan Zhang; Yao Zhang; Yi Zhang; Z.H. Zhang; Z.Y. Zhang; G. Zhao; J. Zhao; J.Y. Zhao; J.Z. Zhao; Lei Zhao; Ling Zhao; M.G. Zhao; Q. Zhao; S.J. Zhao; Y.B. Zhao; Y.X. Zhao; Z.G. Zhao; A. Zhemchugov; B. Zheng; J.P. Zheng; Y. Zheng; Y.H. Zheng; B. Zhong; C. Zhong; L.P. Zhou; Q. Zhou; X. Zhou; X.K. Zhou; X.R. Zhou; A.N. Zhu; J. Zhu; K. Zhu; K.J. Zhu; S.H. Zhu; T.J. Zhu; W.J. Zhu; Y.C. Zhu; Z.A. Zhu; B.S. Zou; J.H. Zou
Source
Physics Letters B, Vol 817, Iss , Pp 136328- (2021)
Subject
Language
English
ISSN
0370-2693
Abstract
The electromagnetic process e+e−→pp¯ is studied with the initial-state-radiation technique using 7.5 fb−1 of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/c2 using the pp¯ invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.