1. An improved limit for Γee of X(3872) and Γee measurement of ψ(3686)
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Ablikim, M.Institute of High Energy Physics, Beijing, 100049, People's Republic of China, Achasov, M.N.(G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk, 630090, Russia), Ai, X.C.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Albayrak, O.(Carnegie Mellon University, Pittsburgh, PA, 15213, USA), Albrecht, M.(Bochum Ruhr-University, Bochum, D-44780, Germany), Ambrose, D.J.(University of Rochester, Rochester, NY, 14627, USA), Amoroso, A.(University of Turin, Turin, I-10125, Italy), An, F.F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), An, Q.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Bai, J.Z.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Baldini Ferroli, R.(INFN Laboratori Nazionali di Frascati, Frascati, I-00044, Italy), Ban, Y.(Peking University, Beijing, 100871, People's Republic of China), Bennett, D.W.(Indiana University, Bloomington, IN, 47405, USA), Bennett, J.V.(Carnegie Mellon University, Pittsburgh, PA, 15213, USA), Bertani, M.(INFN Laboratori Nazionali di Frascati, Frascati, I-00044, Italy), Bettoni, D.(INFN Sezione di Ferrara, Ferrara, I-44122, Italy), Bian, J.M.(University of Minnesota, Minneapolis, MN, 55455, USA), Bianchi, F.(University of Turin, Turin, I-10125, Italy), Boger, E.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Bondarenko, O.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Boyko, I.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Briere, R.A.(Carnegie Mellon University, Pittsburgh, PA, 15213, USA), Cai, H.(Wuhan University, Wuhan, 430072, People's Republic of China), Cai, X.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Cakir, O.(Istanbul Aydin University, Sefakoy, Istanbul, 34295, Turkey), Calcaterra, A.(INFN Laboratori Nazionali di Frascati, Frascati, I-00044, Italy), Cao, G.F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Cetin, S.A.(Dogus University, Istanbul, 34722, Turkey), Chang, J.F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Chelkov, G.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Chen, G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Chen, H.S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Chen, H.Y.(Beihang University, Beijing, 100191, People's Republic of China), Chen, J.C.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Chen, M.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Chen, S.J.(Nanjing University, Nanjing, 210093, People's Republic of China), Chen, X.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Chen, X.R.(Lanzhou University, Lanzhou, 730000, People's Republic of China), Chen, Y.B.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Cheng, H.P.(Huangshan College, Huangshan, 245000, People's Republic of China), Chu, X.K.(Peking University, Beijing, 100871, People's Republic of China), Cibinetto, G.(INFN Sezione di Ferrara, Ferrara, I-44122, Italy), Cronin-Hennessy, D.(University of Minnesota, Minneapolis, MN, 55455, USA), Dai, H.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Dai, J.P.(Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China), Dbeyssi, A.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Dedovich, D.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Deng, Z.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Denig, A.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Denysenko, I.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Destefanis, M.(University of Turin, Turin, I-10125, Italy), De Mori, F.(University of Turin, Turin, I-10125, Italy), Ding, Y.(Liaoning University, Shenyang, 110036, People's Republic of China), Dong, C.(Nankai University, Tianjin, 300071, People's Republic of China), Dong, J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Dong, L.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Dong, M.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Du, S.X.(Zhengzhou University, Zhengzhou, 450001, People's Republic of China), Duan, P.F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Fan, J.Z.(Tsinghua University, Beijing, 100084, People's Republic of China), Fang, J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Fang, S.S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Fang, X.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Fang, Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Fava, L.(University of Eastern Piedmont, Alessandria, I-15121, Italy), Feldbauer, F.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Felici, G.(INFN Laboratori Nazionali di Frascati, Frascati, I-00044, Italy), Feng, C.Q.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Fioravanti, E.(INFN Sezione di Ferrara, Ferrara, I-44122, Italy), Fritsch, M.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Fu, C.D.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Gao, Q.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Gao, X.Y.(Beihang University, Beijing, 100191, People's Republic of China), Gao, Y.(Tsinghua University, Beijing, 100084, People's Republic of China), Gao, Z.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Garzia, I.(INFN Sezione di Ferrara, Ferrara, I-44122, Italy), Geng, C.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Goetzen, K.(GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, D-64291, Germany), Gong, W.X.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Gradl, W.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Greco, M.(University of Turin, Turin, I-10125, Italy), Gu, M.H.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Gu, Y.T.(GuangXi University, Nanning, 530004, People's Republic of China), Guan, Y.H.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Guo, A.Q.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Guo, L.B.(Nanjing Normal University, Nanjing, 210023, People's Republic of China), Guo, Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Guo, Y.P.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Haddadi, Z.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Hafner, A.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Han, S.(Wuhan University, Wuhan, 430072, People's Republic of China), Han, Y.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Hao, X.Q.(Henan Normal University, Xinxiang, 453007, People's Republic of China), Harris, F.A.(University of Hawaii, Honolulu, HI, 96822, USA), He, K.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), He, Z.Y.(Nankai University, Tianjin, 300071, People's Republic of China), Held, T.(Bochum Ruhr-University, Bochum, D-44780, Germany), Heng, Y.K.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Hou, Z.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Hu, C.(Nanjing Normal University, Nanjing, 210023, People's Republic of China), Hu, H.M.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Hu, J.F.(University of Turin, Turin, I-10125, Italy), Hu, T.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Hu, Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Huang, G.M.(Central China Normal University, Wuhan, 430079, People's Republic of China), Huang, G.S.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Huang, H.P.(Wuhan University, Wuhan, 430072, People's Republic of China), Huang, J.S.(Henan Normal University, Xinxiang, 453007, People's Republic of China), Huang, X.T.(Shandong University, Jinan, 250100, People's Republic of China), Huang, Y.(Nanjing University, Nanjing, 210093, People's Republic of China), Hussain, T.(University of the Punjab, Lahore, 54590, Pakistan), Ji, Q.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ji, Q.P.(Nankai University, Tianjin, 300071, People's Republic of China), Ji, X.B.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ji, X.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Jiang, L.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Jiang, L.W.(Wuhan University, Wuhan, 430072, People's Republic of China), Jiang, X.S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Jiao, J.B.(Shandong University, Jinan, 250100, People's Republic of China), Jiao, Z.(Huangshan College, Huangshan, 245000, People's Republic of China), Jin, D.P.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Jin, S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Johansson, T.(Uppsala University, Box 516, Uppsala, SE-75120, Sweden), Julin, A.(University of Minnesota, Minneapolis, MN, 55455, USA), Kalantar-Nayestanaki, N.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Kang, X.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Kang, X.S.(Nankai University, Tianjin, 300071, People's Republic of China), Kavatsyuk, M.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Ke, B.C.(Carnegie Mellon University, Pittsburgh, PA, 15213, USA), Kliemt, R.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Kloss, B.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Kolcu, O.B.(Dogus University, Istanbul, 34722, Turkey), Kopf, B.(Bochum Ruhr-University, Bochum, D-44780, Germany), Kornicer, M.(University of Hawaii, Honolulu, HI, 96822, USA), Kühn, W.(Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen, D-35392, Germany), Kupsc, A.(Uppsala University, Box 516, Uppsala, SE-75120, Sweden), Lai, W.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Lange, J.S.(Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen, D-35392, Germany), Lara, M.(Indiana University, Bloomington, IN, 47405, USA), Larin, P.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Leng, C.(INFN, Turin, I-10125, Italy), Li, C.H.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, Cheng(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Li, D.M.(Zhengzhou University, Zhengzhou, 450001, People's Republic of China), Li, F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, H.B.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, J.C.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, Jin(Seoul National University, Seoul, 151-747, Republic of Korea), Li, K.(Hangzhou Normal University, Hangzhou, 310036, People's Republic of China), Li, K.(Shandong University, Jinan, 250100, People's Republic of China), Li, Lei(Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China), Li, P.R.(University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China), Li, T.(Shandong University, Jinan, 250100, People's Republic of China), Li, W.D.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, W.G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, X.L.(Shandong University, Jinan, 250100, People's Republic of China), Li, X.M.(GuangXi University, Nanning, 530004, People's Republic of China), Li, X.N.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Li, X.Q.(Nankai University, Tianjin, 300071, People's Republic of China), Li, Z.B.(Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China), Liang, H.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Liang, Y.F.(Sichuan University, Chengdu, 610064, People's Republic of China), Liang, Y.T.(Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen, D-35392, Germany), Liao, G.R.(Guangxi Normal University, Guilin, 541004, People's Republic of China), Lin, D.X.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Liu, B.J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, C.X.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, F.H.(Shanxi University, Taiyuan, 030006, People's Republic of China), Liu, Fang(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, Feng(Central China Normal University, Wuhan, 430079, People's Republic of China), Liu, H.B.(GuangXi University, Nanning, 530004, People's Republic of China), Liu, H.H.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, H.H.(Henan University of Science and Technology, Luoyang, 471003, People's Republic of China), Liu, H.M.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, J.P.(Wuhan University, Wuhan, 430072, People's Republic of China), Liu, J.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, K.(Tsinghua University, Beijing, 100084, People's Republic of China), Liu, K.Y.(Liaoning University, Shenyang, 110036, People's Republic of China), Liu, L.D.(Peking University, Beijing, 100871, People's Republic of China), Liu, P.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, Q.(University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China), Liu, S.B.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Liu, X.(Lanzhou University, Lanzhou, 730000, People's Republic of China), Liu, X.X.(University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China), Liu, Y.B.(Nankai University, Tianjin, 300071, People's Republic of China), Liu, Z.A.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, Zhiqiang(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Liu, Zhiqing(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Loehner, H.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Lou, X.C.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Lu, H.J.(Huangshan College, Huangshan, 245000, People's Republic of China), Lu, J.G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Lu, R.Q.(Hunan University, Changsha, 410082, People's Republic of China), Lu, Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Lu, Y.P.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Luo, C.L.(Nanjing Normal University, Nanjing, 210023, People's Republic of China), Luo, M.X.(Zhejiang University, Hangzhou, 310027, People's Republic of China), Luo, T.(University of Hawaii, Honolulu, HI, 96822, USA), Luo, X.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Lv, M.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Lyu, X.R.(University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China), Ma, F.C.(Liaoning University, Shenyang, 110036, People's Republic of China), Ma, H.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ma, L.L.(Shandong University, Jinan, 250100, People's Republic of China), Ma, Q.M.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ma, S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ma, T.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ma, X.N.(Nankai University, Tianjin, 300071, People's Republic of China), Ma, X.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Maas, F.E.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Maggiora, M.(University of Turin, Turin, I-10125, Italy), Malik, Q.A.(University of the Punjab, Lahore, 54590, Pakistan), Mao, Y.J.(Peking University, Beijing, 100871, People's Republic of China), Mao, Z.P.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Marcello, S.(University of Turin, Turin, I-10125, Italy), Messchendorp, J.G.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Min, J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Min, T.J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Mitchell, R.E.(Indiana University, Bloomington, IN, 47405, USA), Mo, X.H.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Mo, Y.J.(Central China Normal University, Wuhan, 430079, People's Republic of China), Morales Morales, C.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Moriya, K.(Indiana University, Bloomington, IN, 47405, USA), Muchnoi, N.Yu.(G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk, 630090, Russia), Muramatsu, H.(University of Minnesota, Minneapolis, MN, 55455, USA), Nefedov, Y.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Nerling, F.(Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Nikolaev, I.B.(G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk, 630090, Russia), Ning, Z.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Nisar, S.(COMSATS Institute of Information Technology, Lahore, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan), Niu, S.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Niu, X.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Olsen, S.L.(Seoul National University, Seoul, 151-747, Republic of Korea), Ouyang, Q.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Pacetti, S.(INFN, University of Perugia, Perugia, I-06100, Italy), Patteri, P.(INFN Laboratori Nazionali di Frascati, Frascati, I-00044, Italy), Pelizaeus, M.(Bochum Ruhr-University, Bochum, D-44780, Germany), Peng, H.P.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Peters, K.(GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, D-64291, Germany), Pettersson, J.(Uppsala University, Box 516, Uppsala, SE-75120, Sweden), Ping, J.L.(Nanjing Normal University, Nanjing, 210023, People's Republic of China), Ping, R.G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Poling, R.(University of Minnesota, Minneapolis, MN, 55455, USA), Pu, Y.N.(Hunan University, Changsha, 410082, People's Republic of China), Qi, M.(Nanjing University, Nanjing, 210093, People's Republic of China), Qian, S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Qiao, C.F.(University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China), Qin, L.Q.(Shandong University, Jinan, 250100, People's Republic of China), Qin, N.(Wuhan University, Wuhan, 430072, People's Republic of China), Qin, X.S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Qin, Y.(Peking University, Beijing, 100871, People's Republic of China), Qin, Z.H.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Qiu, J.F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Rashid, K.H.(University of the Punjab, Lahore, 54590, Pakistan), Redmer, C.F.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Ren, H.L.(Hunan University, Changsha, 410082, People's Republic of China), Ripka, M.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Rong, G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Ruan, X.D.(GuangXi University, Nanning, 530004, People's Republic of China), Santoro, V.(INFN Sezione di Ferrara, Ferrara, I-44122, Italy), Sarantsev, A.(Joint Institute for Nuclear Research, Moscow region, Dubna, 141980, Russia), Savrié, M.(University of Ferrara, Ferrara, I-44122, Italy), Schoenning, K.(Uppsala University, Box 516, Uppsala, SE-75120, Sweden), Schumann, S.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Shan, W.(Peking University, Beijing, 100871, People's Republic of China), Shao, M.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Shen, C.P.(Beihang University, Beijing, 100191, People's Republic of China), Shen, P.X.(Nankai University, Tianjin, 300071, People's Republic of China), Shen, X.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Sheng, H.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Song, W.M.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Song, X.Y.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Sosio, S.(University of Turin, Turin, I-10125, Italy), Spataro, S.(University of Turin, Turin, I-10125, Italy), Sun, G.X.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Sun, J.F.(Henan Normal University, Xinxiang, 453007, People's Republic of China), Sun, S.S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Sun, Y.J.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Sun, Y.Z.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Sun, Z.J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Sun, Z.T.(Indiana University, Bloomington, IN, 47405, USA), Tang, C.J.(Sichuan University, Chengdu, 610064, People's Republic of China), Tang, X.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Tapan, I.(Uludag University, Bursa, 16059, Turkey), Thorndike, E.H.(University of Rochester, Rochester, NY, 14627, USA), Tiemens, M.(KVI-CART, University of Groningen, Groningen, NL-9747 AA, The Netherlands), Toth, D.(University of Minnesota, Minneapolis, MN, 55455, USA), Ullrich, M.(Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen, D-35392, Germany), Uman, I.(Dogus University, Istanbul, 34722, Turkey), Varner, G.S.(University of Hawaii, Honolulu, HI, 96822, USA), Wang, B.(Nankai University, Tianjin, 300071, People's Republic of China), Wang, B.L.(University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China), Wang, D.(Peking University, Beijing, 100871, People's Republic of China), Wang, D.Y.(Peking University, Beijing, 100871, People's Republic of China), Wang, K.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, L.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, L.S.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, M.(Shandong University, Jinan, 250100, People's Republic of China), Wang, P.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, P.L.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, Q.J.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, S.G.(Peking University, Beijing, 100871, People's Republic of China), Wang, W.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, X.F.(Tsinghua University, Beijing, 100084, People's Republic of China), Wang, Y.D.(INFN Laboratori Nazionali di Frascati, Frascati, I-00044, Italy), Wang, Y.F.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, Y.Q.(Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, Mainz, D-55099, Germany), Wang, Z.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, Z.G.(Institute of High Energy Physics, Beijing, 100049, People's Republic of China), Wang, Z.H.(University of Science and Technology of China, Hefei, 230026, People's Republic of China), Wang, Z.Y.(Institute of High Energy Physics, Beijing, 100049, 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- Subjects
Nuclear and High Energy Physics ,X(3872) ,BESIII ,Charmonium spectroscopy ,Γ ,ee ,ψ(3686) ,Γee ,lcsh:Physics ,lcsh:QC1-999 - Abstract
Using the data sets taken at center-of-mass energies above 4 GeV by the BESIII detector at the BEPCII storage ring, we search for the reaction e+eââγISRX(3872)âγISRÏ+ÏâJ/Ï via the Initial State Radiation technique. The production of a resonance with quantum numbers JPC=1++ such as the X(3872) via single photon e+eâ annihilation is forbidden, but is allowed by a next-to-leading order box diagram. We do not observe a significant signal of X(3872) , and therefore give an upper limit for the electronic width times the branching fraction ÎeeX(3872)B(X(3872)âÏ+ÏâJ/Ï)
- Published
- 2015