1. Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973, USA
2. Physics Department, Wesleyan University, Middletown, Connecticut 06457, USA
3. Department of Engineering Science, The Pennsylvania State University, State College, Pennsylvania 16802, USA
4. Department of Physics, Brown University, Providence, Rhode Island 02912, USA
5. Nuclear Physics Institute of CAS, 25068 Rez, Prague, Czech Republic
6. Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
7. Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan