Measurement of the e+e−→π+π− cross section between 600 and 900 MeV using initial state radiation

X. Ai,O. Albayrak,M. Albrecht,D. Ambrose,A. Amoroso,Q. An,J. Bai,R. Ferroli,Y. Ban,D. Bennett,J. Bennett,M. Bertani,D. Bettoni,J. Bian,F. Bianchi,E. Boger,I. Boyko,R. Briere,H. Cai,X. Cai,Ö. Çakır,A. Calcaterra,G. Cao,S. Çetin,J. Chang,G. Chelkov,G. Chen,H.S. Chen,H.Y. Chen,J.C. Chen,M.L. Chen,S.J. Chen,X. Chen,X.R. Chen,Y.B. Chen,H. Cheng,X. Chu,G. Cibinetto,H. Dai,J. Dai,A. Dbeyssi,D. Dedovich,Z. Deng,A. Denig,I. Denysenko,M. Destefanis,Y. Ding,C. Dong,J. Dong,L. Dong,M. Dong,S. Du,Pengfei Duan,Engin Eren,J. Fan,J. Fang,S. Fang,Xin Fang,Y. Fang,L. Fava,F. Feldbauer,G. Felici,C. Feng,E. Fioravanti,M. Fritsch,C. Fu,Q. Gao,X. Gao,Y. Gao,Z. Gao,I. Garzia,K. Goetzen,W. Gong,W. Gradl,M. Greco,M. Gu,Y. Gu,Y. Guan,A. Guo,L. Guo,Y. Guo,Z. Haddadi,A. Hafner,Shuo Han,X. Hao,F. Harris,K. He,X. He,T. Held,Y. Heng,Z. Hou,Chenguo Hu,H. Hu,J. Hu,Y. Hu,G. Huang,J. Huang,X. Huang,Y. Huang,T. Hussain,Q. Ji,X. Ji,L. Jiang,X. Jiang,J. Jiao,Z. Jiao,D. Jin,S. Jin,T. Johansson,A. Julin,N. Kalantar-Nayestanaki,X. Kang,M. Kavatsyuk,B. Ke,P. Kiese,R. Kliemt,B. Kloss,O. Kolcu,B. Kopf,M. Kornicer,W. Kühn,A. Kupść,J. Lange,M. Lara,P. Larin,C. Leng,C. Li,Cheng Li,D.M. Li,F. Li,F.Y. Li,G. Li,H.B. Li,J.C. Li,Jin Li,K. Li,Lei Li,P. Li,T. Li,W.D. Li,W.G. Li,X.L. Li,X.M. Li,X.N. Li,X.Q. Li,Z.B. Li,Hai‐Wei Liang,Yong‐Min Liang,Y. Liang,G. Liao,D. Lin,B.J. Liu,C.X. Liu,F. Liu,Fang Liu,Feng Liu,H.B. Liu,H.H. Liu,H.M. Liu,J. Liu,K. Liu,J.P. Liu,J.Y. Liu,K.Y. Liu,L.D. Liu,P.L. Liu,Q. Liu,S.B. Liu,X. Liu,Y.B. Liu,Z.A. Liu,Zhiqing Liu,H. Loehner,X. Lou,H. Lu,J. Lu,Y. Lu,C. Luo,M. Luo,T. Luo,Xinyu Luo,X.R. Lyu,Wei Li,H. L.,L.L. Ma,Q. Ma,T. Ma,Xiao-Dong Ma,X. Ma,F. Maas,M. Maggiora,Y. Mao,Z. Mao,S. Marcello,J. Messchendorp,J. Min,R. Mitchell,X. Mo,Yunfei Mo,C. Morales,K. Moriya,N. Muchnoi,H. Muramatsu,Y. Nefedov,F. Nerling,I. Nikolaev,Z. Ning,S. Nisar,S. Niu,X. Niu,S. Olsen,Q. Ouyang,S. Pacetti,P. Patteri,M. Pelizaeus,H. Peng,Κ. Peters,J. Pettersson,J.L. Ping,R. Ping,R. Poling,V. Prasad,M. Qi,S. Qian,C.F. Qiao,L. Qin,N. Qin,X. Qin,Zhonghua Qin,J. Qiu,X. Shi,C. Redmer,M. Ripka,G. Rong,Ch. Rosner,X. Ruan,V. Santoro,A. Sarantsev,M. Savrié,K. Schoenning,S. Schumann,Weijun Shan,M. Shao,C.P. Shen,Pu Shen,X. Shen,H. Sheng,W. Song,M. Shepherd,Xianrang Song,S. Sosio,S. Spataro,Gang Sun,J. Sun,S.S. Sun,Y. Sun,Yipeng Sun,Z. Sun,Chencheng Tang,X. Tang,I. Tapan,E. Thorndike,M. Tiemens,M. Ullrich,I. Uman,G.S. Varner,B. Wang,D. Wang,D.Y. Wang,K. Wang,L.L. Wang,L.S. Wang,M. Wang,P. Wang,P.L. Wang,S.G. Wang,Wei Wang,X.F. Wang,Y.D. Wang,Y.F. Wang,Y.Q. Wang,Z. Wang,Z.G. Wang,Z.H. Wang,Z.Y. Wang,T. Weber,D. Wei,Jibo Wei,P. Weidenkaff,S. Wen,U. Wiedner,M. Wolke,L. Wu,Z. Wu,L. Xia,Yudong Xia,D. Xiao,H. Xiao,Z.J. Xiao,Y. Xie,Q.L. Xiu,G. Xu,L. Xu,Q. Xu,Xiaolong Xu,L. Yan,W. Yan,Y.H. Yan,H.J. Yang,H.X. Yang,L. Yang,Yifan Yang,M. Ye,M.H. Ye,J. Yin,B. Yu,C. Yu,J. Yu,C. Yuan,W. Yuan,Yanan Yuan,A. Yuncu,A. Zafar,A. Zallo,Y. Zeng,B.X. Zhang,B.Y. Zhang,C. Zhang,C.C. Zhang,D.H. Zhang,H. Zhang,H.Y. Zhang,J.J. Zhang,J.L. Zhang,J.Q. Zhang,J.W. Zhang,J.Y. Zhang,J.Z. Zhang,K. Zhang,L. Zhang,X.Y. Zhang,Z. Zhang,Yidan Zhang,Y.H. Zhang,Y.T. Zhang,Shouxin Zhang,Z.H. Zhang,Z.P. Zhang,Z.Y. Zhang,Gang Zhao,J.W. Zhao,J. Zhao,Lei Zhao,Ling Zhao,Minggang Zhao,Q. Zhao,Q.W. Zhao,T.C. Zhao,Y. Zhao,Z. Zhao,A. Zhemchugov,B. Zheng,J. Zheng,W.J. Zheng,Y. Zheng,B. Zhong,L. Zhou,X. Zhou,X.R. Zhou,Xiaokang Zhou,K. Zhu,S. Zhu,S.H. Zhu,Xiaoyu Zhu,Y. Zhu,Y.S. Zhu,Z. Zhu,J. Zhuang,L. Zotti,B. Zou,J. Zou,O. Çakır,S. Eidelman,Xuyang Gao,S. Han