1. RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198
2. Department of Physics, Saitama University, Sakura-ku, Saitama 338-8570
3. Center for Instrumental Analysis, Niigata University, Ikarashi, Niigata 950-2181
4. Center for Nuclear Study, University of Tokyo Wako Branch, Wako, Saitama 351-0198
5. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195
6. Department of Chemistry, Niigata University, Ikarashi, Niigata 950-2181
7. University of Tsukuba, Tsukuba, Ibaraki 305-8571
8. Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
9. Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China