[Ye, Jingbo; Liu, Tiankuan; Liu, Chonghan; Zhou, Wei; Gong, Datao; Sun, Quan] Southern Methodist Univ, Dept Phys, Dallas, TX 75275 USA.
[Zhang, Guangyu; Wang, Jian; Yang, Dongxu] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
[Deng, Binwei] Hubei Polytech Univ, Huangshi 435003, Hubei, Peoples R China.
[Xiao, Le; Zhou, Wei; Sun, Xiangming; Di, Guo; You, Bihui; Liu, Jun] Cent China Normal Univ, Dept Phys, Wuhan 430079, Hubei, Peoples R China.
[Hu-Guo, Christine; Valin, Isabelle; Morel, Frederic] UDS, IN2P3/, CNRS, Inst PluridisciplinaireHubert Curien, 23 Rue Loess,BP 28, F-67037 Strasbourg, France.