1. Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
2. RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
3. Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
4. GSI Helmholtz Center for Heavy Ion Research GmbH, 64291 Darmstadt, Germany
5. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
6. Institut de Physique Nucleáire Orsay, 15 Rue, Georges, Clemenceau 91400 Orsay, France
7. Department of Physics, Kyoto University, Kyoto 606-8502, Japan
8. Faculty of Engineering, University of Miyazaki, Miyazaki 889-2192, Japan
9. Cyclotron and Radioisotope Center, Tohoku University, Sendai 980-8578, Japan
10. Department of Physics, Tohoku University, Sendai 980-8578, Japan
11. Department of Physics, Osaka City University, Osaka 558-8585, Japan
12. Center for Nuclear Study, The University of Tokyo, Wako, Saitama 351-0198, Japan
13. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan