Institution: | 1. Department of Physics, Kyushu University, Hakozaki, 812, Fukuoka, Japan 2. Japan Atomic Energy Research Institute, Tokai, 319-11, Ibaragi, Japan 3. RIKEN, Wako-shi, 351-01, Saitama, Japan 4. Institute of Modern Physics Academia Sinica, Nanchang Load, Lanzhou, China 5. National Institute of Radiological Sciences, Inage, 263, Chiba, Japan 6. Faculty of Education, Chiba University, 263, Chiba, Japan 7. Faculty of Natural Science, Chiba Institute of Technology, Narashino, 275, Chiba, Japan 8. The Graduate School of Nagatsuda, Tokyo Institute of Technology, Yokohama, 227, Kanagawa, Japan 9. Korea Atomic Energy Research Institute, 305-353, Daejeon, Korea 10. Department of Physics, Seoul National University, 151-742, Seoul, Korea 11. Center for Mathematical Sciences, University of Aizu, Aizuwakamatsu, 965, Fukushima, Japan
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