Affiliation: | 1. RIKEN (The Institute of Physical and Chemical Research), 351-0198, Wako-shi, Saitama, Japan 2. Niigata University, 950-2181, Niigata, Japan 3. Institute of High Energy Physics, Chinese Academy of Science, 100039, Beijing, P.R. China 4. Institute of Modern Physics, Chinese Academy of Science, 730000, Lanzhou, P.R. China 5. University of Tsukuba, 305-8577, Tsukuba-shi, Ibaragi, Japan
|