| Affiliation: | (1) Department of Physics, Yamanashi University, 400 Kofu, Japan;(2) Department of Applied Physics and Chemistry, Fukui Institute of Technology, 910 Fukui, Japan;(3) Department of Physics, Saitama University, 338 Urawa, Japan;(4) Faculty of Science and Engineering, Aoyama Gakuin University, 157 Setagaya, Tokyo, Japan;(5) Institute for Cosmic Ray Research, University of Tokyo, 188 Tanashi, Tokyo, Japan;(6) Faculty of Science and Technology, Kinki University, 577 Kowakae, Osaka, Japan;(7) Department of Physics, Kochi University, 780 Kochi, Japan;(8) Instituto de Investigaciones Fisicas, Universidad Mayor de San Andres, La Paz, Bolivia |
