1Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, Japan 2Institute for Cosmic Ray Research, University of Tokyo, Tanashi, Tokyo 188, Japan 3Computing Research Center, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305, Japan 4Center for Computational Physics, University of Tsukuba, Tsukuba, Ibaraki 305, Japan 5Institute of Particle and Nuclear Studies, H...