1. RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama 351-0198
2. Center for Nuclear Science, University of Tokyo, Wako, Saitama 351-0198
3. Laboratoire de Physique Corpusculaire de Caen, LPC/ISMRA, 6, Boulevard du Marechal Juin, 14050 Caen Cedex, France
4. Advanced Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555
5. Department of Chemistry, Niigata University, Ikarashi, Niigata 950-2181
6. University of Tsukuba, Tsukuba, Ibaraki 305-8577
7. Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
8. Flerov Laboratory of Nuclear Reactions, Joint Institute of Nuclear Research, RU-141 980 Dubna, Russia
9. Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China
10. School of Physics, Peking University, Beijing 100871, China
11. Department of Physics, Yamagata University, Shirakawa, Yamagata 990-8560