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TLDR
In this paper, the authors studied the process e +e −→J/ψπ +π - with initial-state-radiation events produced at the PEP-II asymmetric-energy collider.Abstract:
We study the process e +e -→J/ψπ +π - with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integrated luminosity of 454fb -1. We investigate the J/ψπ +π - mass distribution in the region from 3.5 to 5.5GeV/c2. Below 3.7GeV/c2 the ψ(2S) signal dominates, and above 4GeV/c2 there is a significant peak due to the Y(4260). A fit to the data in the range 3.74-5.50GeV/c2 yields a mass value 4245±5(stat)±4(syst)MeV/c2 and a width value 114-15+16(stat) ±7(syst)MeV for this state. We do not confirm the report from the Belle Collaboration of a broad structure at 4.01GeV/c2. In addition, we investigate the π +π - system which results from Y(4260) decay. © 2012 American Physical Society.read more
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Tan,J.H. von Wimmersperg-Toeller,Sau Lan Wu,Zongfu Yu,H. A. Neal +634 more
Observation of a charged charmoniumlike structure in e+ e- → (D* D*)± π∓ at √s = 4.26 GeV.
M. Ablikim,M. N. Achasov,Xiaocong Ai,O. Albayrak,D. J. Ambrose,Fenfen An,Q. An,J. Z. Bai,R. Baldini Ferroli,Y. Ban,Jürgen Becker,J. V. Bennett,M. Bertani,J. M. Bian,E. Boger,O. Bondarenko,Igor Boyko,R. A. Briere,V. V. Bytev,H. Cai,X. Cai,O. Cakir,A. Calcaterra,G. F. Cao,Serkant Ali Cetin,J. F. Chang,G. A. Chelkov,G. F. Chen,H. S. Chen,J. C. Chen,M. L. Chen,S. J. Chen,Xiao Dong Chen,Y. B. Chen,H. P. Cheng,Y. P. Chu,D. Cronin-Hennessy,H. L. Dai,J. P. Dai,D. V. Dedovich,Z. Y. Deng,A. G. Denig,I. Denysenko,M. Destefanis,W. M. Ding,Y. Ding,L. Y. Dong,M. Y. Dong,S. X. Du,J. Fang,S. S. Fang,L. Fava,C. Q. Feng,P. Friedel,C. D. Fu,J. L. Fu,O. Fuks,Q. Gao,Y.N. Gao,C. Geng,K. Goetzen,W. X. Gong,W. Gradl,Mario Greco,M. H. Gu,Y. T. Gu,Y. H. Guan,A. Q. Guo,L. B. Guo,T. Guo,Y. P. Guo,Y. L. Han,F. A. Harris,K. L. He,Miao He,Z. Y. He,T. Held,Y. K. Heng,Z. L. Hou,C. Hu,H. M. Hu,Jifeng Hu,T. Hu,Guangming Huang,G. S. Huang,J. S. Huang,L. Huang,X. T. Huang,Yucheng Huang,Yanping Huang,Talib Hussain,C. S. Ji,Q. P. Ji,Q. P. Ji,X. B. Ji,X. L. Ji,L. L. Jiang,X. S. Jiang,J. B. Jiao,Z. Jiao,D. P. Jin,S. Jin,F. F. Jing,Nasser Kalantar-Nayestanaki,M. Kavatsyuk,B. Kopf,M. Kornicer,W. Kühn,W. Lai,J. S. Lange,M. Lara,P. Larin,M. Leyhe,C. H. Li,Cheng Li,Cui Li,D. M. Li,F. Li,G. Li,H. B. Li,J. C. Li,K. Li,Lei Li,Q. J. Li,S. L. Li,W. D. Li,W. G. Li,Xingguo Li,X. N. Li,X. Q. Li,X. R. Li,Z. B. Li,H. Liang,Y. F. Liang,Y. T. Liang,G. R. Liao,X. T. Liao,D. X. Lin,B. J. Liu,Chuan Liu,C. X. Liu,Fu-Hu Liu,Fang Liu,Feng Liu,H. B. Liu,H. B. Liu,Huihui Liu,H. M. Liu,Hang Liu,J. P. Liu,Kai Liu,K. Y. Liu,Kai Liu,P. L. Liu,Q. Liu,S. B. Liu,X. Liu,Y. B. Liu,Z. A. Liu,Zhiqiang Liu,Zhiqing Liu,H. Loehner,Xuanhong Lou,G. R. Lu,H. J. Lu,J. G. Lu,Qi-Wen Lü,Xiao-Tong Lu,Y. P. Lu,C. L. Luo,M. X. Luo,Tao Luo,X. L. Luo,M. Lv,C. L. Ma,F. C. Ma,H. L. Ma,Q. M. Ma,S. Ma,T. Ma,X. Y. Ma,F. E. Maas,M. Maggiora,Q. A. Malik,Y. J. Mao,Z. P. Mao,J. G. Messchendorp,J. Min,T. J. Min,R. E. Mitchell,X. H. Mo,Y. J. Mo,H. Moeini,C. Morales Morales,K. Moriya,N. Yu. Muchnoi,H. Muramatsu,Y. Nefedov,C. Nicholson,I. B. Nikolaev,Z. Ning,S. L. Olsen,Q. Ouyang,S. Pacetti,Joong-Won Park,M. Pelizaeus,Haiping Peng,Krisztian Peters,Jialun Ping,R. G. Ping,R. Poling,E. Prencipe,M. Qi,S. Qian,Cong-Feng Qiao,L. Q. Qin,X. S. Qin,Yang Qin,Z. H. Qin,J. F. Qiu,K. H. Rashid,G. Rong,Xiangdong Ruan,A. Sarantsev,B. D. Schaefer,M. Shao,C. P. Shen,X. Y. Shen,H. Y. Sheng,M. R. Shepherd,W. M. Song,X. Y. Song,S. Spataro,B. Spruck,D. H. Sun,G. X. Sun,J. F. Sun,S. S. Sun,Y. J. Sun,Y. Z. Sun,Z. J. Sun,Zhe Sun,C. J. Tang,X. Tang,I. Tapan,E. H. Thorndike,D. Toth,M. Ullrich,I. Uman,G. S. Varner,B. Q. Wang,Dayong Wang,D. Y. Wang,Ke Wang,L. L. Wang,L. S. Wang,Meng Wang,P. L. Wang,P. L. Wang,Qun-Yao Wang,Shan Wang,Xuejun Wang,X. L. Wang,Y. D. Wang,Y. F. Wang,Y. Q. Wang,Zujian Wang,Z. G. Wang,Z. Y. Wang,D. H. Wei,Jian Wei,P. Weidenkaff,Q. G. Wen,S. P. Wen,Michael Werner,Ulrich Wiedner,L. H. Wu,N. Wu,Sanfeng Wu,Wei Wu,Z. Wu,L. G. Xia,Y. X. Xia,Z. J. Xiao,Y. G. Xie,Q. L. Xiu,G. F. Xu,G. M. Xu,Q. J. Xu,Qiunan Xu,X. P. Xu,Zhenli Xu,Feng Xue,Z. Xue,Li Yan,W. B. Yan,Y. H. Yan,H. X. Yang,Yang Yang,Y. X. Yang,Heng-Yun Ye,M. H. Ye,M. H. Ye,B. X. Yu,C. X. Yu,Hai Yu,Jie Yu,S. P. Yu,C. Z. Yuan,Y. Yuan,A. A. Zafar,A. Zallo,S. L. Zang,Y. Zeng,B. X. Zhang,B. Y. Zhang,Chi Zhang,C. C. Zhang,D. H. Zhang,H. H. Zhang,H. Y. Zhang,J. Q. Zhang,J. W. Zhang,J. Y. Zhang,J. Z. Zhang,LiLi Zhang,Rui Zhang,S. H. Zhang,Xuantong Zhang,X. Y. Zhang,Y. Zhang,Y. H. Zhang,Zhiqing Zhang,Zhenyu Zhang,Zhenghao Zhang,Gang Zhao,HongSheng Zhao,J. W. Zhao,K. X. Zhao,Lei Zhao,Ling Zhao,M. G. Zhao,Q. Zhao,Shujun Zhao,T. C. Zhao,X. H. Zhao,Y. B. Zhao,Z. G. Zhao,A. Zhemchugov,B. Zheng,Jianping Zheng,Y. H. Zheng,B. Zhong,L. P. Zhou,Xiang Zhou,X. K. Zhou,X. R. Zhou,C. Zhu,K. J. Zhu,K. J. Zhu,Shou-hua Zhu,Xiaofeng Zhu,Y. C. Zhu,Y. M. Zhu,Y. S. Zhu,Z. A. Zhu,J. Zhuang,B. S. Zou,J. H. Zou +368 more
Observation of a Narrow Charmoniumlike State in Exclusive B±→K±π+π-J/ψ Decays
Suyong Choi,S. L. Olsen,Kazuo Abe,T. Abe,I. Adachi,Byoung Sup Ahn,Hiroaki Aihara,K. Akai,M. Akatsu,M. Akemoto,Y. Asano,Tsukasa Aso,V.M. Aulchenko,T. Aushev,A. M. Bakich,Yong Ban,S. Banerjee,A. Bondar,A. Bozek,M. Bračko,Jolanta Brodzicka,T. E. Browder,P. Chang,Y. Chao,K. F. Chen,Byung Gu Cheon,R. Chistov,Y. Choi,Young-Il Choi,M. Danilov,L. Y. Dong,A. Drutskoy,Semen Eidelman,V. Eiges,J.W. Flanagan,Chikara Fukunaga,Kazuro Furukawa,N. Gabyshev,T. J. Gershon,B. Golob,H. Guler,R. Guo,C. Hagner,F. Handa,T. Hara,N. C. Hastings,H. Hayashii,Masashi Hazumi,L. Hinz,Y. Hoshi,W. S. Hou,Y. B. Hsiung,Y. B. Hsiung,H. C. Huang,T. Iijima,K. Inami,A. Ishikawa,R. Itoh,M. Iwasaki,Y. Iwasaki,J. H. Kang,S. U. Kataoka,N. Katayama,H. Kawai,T. Kawasaki,H. Kichimi,Eiji Kikutani,H. J. Kim,Hyunwoo Kim,Jung-Hyun Kim,Seong Keun Kim,K. Kinoshita,Haruyo Koiso,Patrick Koppenburg,S. Korpar,P. Križan,P. Krokovny,Suneel Kumar,A.S. Kuzmin,J. S. Lange,G. Leder,S. H. Lee,T. Lesiak,S. W. Lin,D. Liventsev,J. MacNaughton,Gobinda Majumder,F. Mandl,Daniel Robert Marlow,T. Matsumoto,Shinichiro Michizono,Toshihiro Mimashi,W. A. Mitaroff,K. Miyabayashi,H. Miyake,D. Mohapatra,G. R. Moloney,T. Nagamine,Yasushi Nagasaka,T. Nakadaira,Takashi Nakamura,M. Nakao,Z. Natkaniec,S. Nishida,O. Nitoh,T. Nozaki,S. Ogawa,Y. Ogawa,K. Ohmi,Yukiyoshi Ohnishi,T. Ohshima,Norihito Ohuchi,Katsunobu Oide,T. Okabe,S. Okuno,W. Ostrowicz,H. Ozaki,H. Palka,H. K. Park,N. Parslow,L. E. Piilonen,Hiroyuki Sagawa,S. Saitoh,Y. Sakai,T. R. Sarangi,M. Satapathy,A. Satpathy,O. Schneider,A. J. Schwartz,S. Semenov,K. Senyo,Rolf Seuster,M. E. Sevior,H. Shibuya,Tetsuo Shidara,B. Shwartz,V.A. Sidorov,N. Soni,S. Stanič,S. Stanič,M. Starič,Akira Sugiyama,T. Sumiyoshi,S. Y. Suzuki,F. Takasaki,K. Tamai,N. Tamura,M. H. Tanaka,Masafumi Tawada,G. N. Taylor,Y. Teramoto,T. Tomura,K. Trabelsi,T. Tsukamoto,S. Uehara,K. Ueno,Y. Unno,S. Uno,G. S. Varner,Kevin Varvell,C. C. Wang,C. H. Wang,J. G. Wang,Y. Watanabe,E. Won,B. D. Yabsley,Yasuhiko Yamada,A. Yamaguchi,Y. Yamashita,H. Yanai,Heyoung Yang,J. Ying,M. Yoshida,C. C. Zhang,Zhenyu Zhang,D. Žontar +175 more
Observation of a Charged Charmoniumlike Structure Z(c) (4020) and Search for the Z(c) (3900) in e(+)e(-) -> pi(+) pi(-)h(c)
M. Ablikim,M. N. Achasov,O. Albayrak,D. J. Ambrose,Fenfen An,Q. An,J. Z. Bai,R. Baldini Ferroli,Y. Ban,Jürgen Becker,J. V. Bennett,M. Bertani,J. M. Bian,E. Boger,O. Bondarenko,Igor Boyko,S. Braun,R. A. Briere,V. V. Bytev,H. Cai,X. Cai,O. Cakir,A. Calcaterra,A. Calcaterra,G. F. Cao,Serkant Ali Cetin,J. F. Chang,G. A. Chelkov,G. F. Chen,H. S. Chen,J. C. Chen,M. L. Chen,S. J. Chen,X. R. Chen,Y. B. Chen,H. P. Cheng,X. K. Chu,Y. P. Chu,D. Cronin-Hennessy,H. L. Dai,J. P. Dai,D. V. Dedovich,Z. Y. Deng,A. G. Denig,I. Denysenko,M. Destefanis,M. Destefanis,W. M. Ding,Y. Ding,L. Y. Dong,M. Y. Dong,S. X. Du,J. Fang,S. S. Fang,L. Fava,L. Fava,C. Q. Feng,P. Friedel,C. D. Fu,J. L. Fu,O. Fuks,Y.N. Gao,C. Geng,K. Goetzen,W. X. Gong,W. Gradl,M. Greco,M. Greco,M. H. Gu,Y. T. Gu,Y. H. Guan,A. Q. Guo,L. B. Guo,T. Guo,Y. P. Guo,Y. L. Han,F. A. Harris,K. L. He,Miao He,Z. Y. He,T. Held,Y. K. Heng,Z. L. Hou,C. Hu,H. M. Hu,Jifeng Hu,T. Hu,Guangming Huang,G. S. Huang,J. S. Huang,L. Huang,X. T. Huang,Yucheng Huang,Talib Hussain,C. S. Ji,Q. P. Ji,Q. P. Ji,X. B. Ji,X. L. Ji,L. L. Jiang,X. S. Jiang,J. B. Jiao,Z. Jiao,D. P. Jin,S. Jin,F. F. Jing,Nasser Kalantar-Nayestanaki,M. Kavatsyuk,B. Kloss,B. Kopf,M. Kornicer,W. Kuehn,W. Lai,J. S. Lange,M. Lara,P. Larin,M. Leyhe,C. H. Li,Cheng Li,Cui Li,D. Li,D. M. Li,F. Li,G. Li,H. B. Li,J. C. Li,K. Li,Lei Li,N. Li,P. R. Li,Q. J. Li,W. D. Li,W. G. Li,Xingguo Li,X. N. Li,X. Q. Li,X. R. Li,Z. B. Li,H. Liang,Y. F. Liang,Y. T. Liang,G. R. Liao,D. X. Lin,B. J. Liu,Chuan Liu,C. X. Liu,Fu-Hu Liu,Fang Liu,Feng Liu,H. B. Liu,Huihui Liu,H. M. Liu,J. P. Liu,Kai Liu,K. Y. Liu,P. L. Liu,Q. Liu,S. B. Liu,X. Liu,Y. B. Liu,Z. A. Liu,Zhiqiang Liu,Zhiqing Liu,H. Loehner,X. C. Lou,G. R. Lu,H. J. Lu,J. G. Lu,Xiao-Tong Lu,Y. P. Lu,C. L. Luo,M. X. Luo,Tao Luo,X. L. Luo,M. Lv,F. C. Ma,H. L. Ma,Q. M. Ma,S. Ma,T. Ma,X. Y. Ma,F. E. Maas,M. Maggiora,M. Maggiora,Q. A. Malik,Y. J. Mao,Z. P. Mao,J. G. Messchendorp,J. Min,T. J. Min,R. E. Mitchell,X. H. Mo,H. Moeini,C. Morales Morales,K. Moriya,N. Yu. Muchnoi,H. Muramatsu,Y. Nefedov,I. B. Nikolaev,Z. Ning,S. Nisar,S. L. Olsen,Q. Ouyang,S. Pacetti,J. W. Park,M. Pelizaeus,Haiping Peng,Krisztian Peters,Jialun Ping,R. G. Ping,R. Poling,E. Prencipe,M. Qi,S. Qian,Cong-Feng Qiao,L. Q. Qin,X. S. Qin,Yang Qin,Z. H. Qin,J. F. Qiu,K. H. Rashid,C. F. Redmer,M. Ripka,G. Rong,Xiangdong Ruan,A. Sarantsev,S. Schumann,W. Shan,M. Shao,C. P. Shen,X. Y. Shen,H. Y. Sheng,M. R. Shepherd,W. M. Song,X. Y. Song,S. Spataro,S. Spataro,B. Spruck,G. X. Sun,J. F. Sun,S. S. Sun,Y. J. Sun,Y. Z. Sun,Z. J. Sun,Zhe Sun,C. J. Tang,X. Tang,I. Tapan,E. H. Thorndike,D. Toth,M. Ullrich,I. Uman,G. S. Varner,B. Q. Wang,Dayong Wang,D. Y. Wang,Ke Wang,L. L. Wang,L. S. Wang,Meng Wang,P. L. Wang,P. L. Wang,Qun-Yao Wang,Shan Wang,Xuejun Wang,X. L. Wang,Y. D. Wang,Y. F. Wang,Y. Q. Wang,Zujian Wang,Z. G. Wang,Z. H. Wang,Z. Y. Wang,D. H. Wei,Jian Wei,P. Weidenkaff,Q. G. Wen,S. P. Wen,Michael Werner,Ulrich Wiedner,L. H. Wu,N. Wu,Sanfeng Wu,Wei Wu,Z. Wu,L. G. Xia,Y. X. Xia,Z. J. Xiao,Y. G. Xie,Q. L. Xiu,G. F. Xu,Q. J. Xu,Qiunan Xu,X. P. Xu,Zhenli Xu,Z. Xue,Li Yan,W. B. Yan,W. C. Yan,Y. H. Yan,H. X. Yang,Yang Yang,Y. X. Yang,Y. Z. Yang,Heng-Yun Ye,M. H. Ye,M. H. Ye,B. X. Yu,C. X. Yu,Hai Yu,Jie Yu,S. P. Yu,C. Z. Yuan,W. L. Yuan,Y. Yuan,A. A. Zafar,A. Zallo,S. L. Zang,Y. Zeng,B. X. Zhang,B. Y. Zhang,Chi Zhang,C. B. Zhang,C. C. Zhang,D. H. Zhang,H. H. Zhang,H. Y. Zhang,J. Q. Zhang,J. W. Zhang,J. Y. Zhang,J. Z. Zhang,LiLi Zhang,S. H. Zhang,Xuantong Zhang,X. Y. Zhang,Y. Zhang,Y. H. Zhang,Z. P. Zhang,Zhenyu Zhang,Zhenghao Zhang,Gang Zhao,J. W. Zhao,Lei Zhao,Ling Zhao,M. G. Zhao,Q. Zhao,Shujun Zhao,T. C. Zhao,X. H. Zhao,Y. B. Zhao,Z. G. Zhao,A. Zhemchugov,B. Zheng,Jianping Zheng,Y. H. Zheng,B. Zhong,L. P. Zhou,Xiang Zhou,X. K. Zhou,X. R. Zhou,K. J. Zhu,K. J. Zhu,Xiaofeng Zhu,Y. C. Zhu,Y. S. Zhu,Z. A. Zhu,J. Zhuang,B. S. Zou,J. H. Zou +368 more