[1] Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Beihang Univ, Beijing 100191, Peoples R China
[3] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China
[4] Ruhr Univ Bochum, D-44780 Bochum, Germany
[5] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[6] Cent China Normal Univ, Wuhan 430079, Peoples R China
[7] China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China
[8] COMSATS Inst Informat Technol, Lahore 54000, Pakistan
[9] GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia
[10] GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany
[11] Guangxi Normal Univ, Guilin 541004, Peoples R China
[12] Guangxi Univ, Nanning 530004, Peoples R China
[13] Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China
[14] Helmholtz Inst Mainz, D-55099 Mainz, Germany
[15] Henan Normal Univ, Xinxiang 453007, Peoples R China
[16] Henan Univ Sci & Technol, Luoyang 471003, Peoples R China
[17] Huangshan Coll, Huangshan 245000, Peoples R China
[18] Hunan Univ, Changsha 410082, Hunan, Peoples R China
[19] Indiana Univ, Bloomington, IN 47405 USA
[20] INFN Lab Nazl Frascati, I-00044 Frascati, Italy
[21] Ist Nazl Fis Nucl, I-06100 Perugia, Italy
[22] Univ Perugia, I-06100 Perugia, Italy
[23] INFN Sez Ferrara, I-44122 Ferrara, Italy
[24] Univ Ferrara, I-44122 Ferrara, Italy
[25] Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany
[26] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia
[27] Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany
[28] Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands
[29] Lanzhou Univ, Lanzhou 730000, Peoples R China
[30] Liaoning Univ, Shenyang 110036, Peoples R China
[31] Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China
[32] Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China
[33] Nankai Univ, Tianjin 300071, Peoples R China
[34] Peking Univ, Beijing 100871, Peoples R China
[35] Seoul Natl Univ, Seoul 151747, South Korea
[36] Shandong Univ, Jinan 250100, Peoples R China
[37] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China
[38] Shanxi Univ, Taiyuan 030006, Peoples R China
[39] Sichuan Univ, Chengdu 610064, Peoples R China
[40] Soochow Univ, Suzhou 215006, Peoples R China
[41] Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China
[42] Tsinghua Univ, Beijing 100084, Peoples R China
[43] Istanbul Aydin Univ, TR-34295 Istanbul, Turkey
[44] Dogus Univ, TR-34722 Istanbul, Turkey
[45] Uludag Univ, TR-16059 Bursa, Turkey
[46] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[47] Univ Hawaii, Honolulu, HI 96822 USA
[48] Univ Minnesota, Minneapolis, MN 55455 USA
[49] Univ Rochester, Rochester, NY 14627 USA
[50] Univ Sci & Technol China, Hefei 230026, Peoples R China