M.Fukuda1,K.Asahi1,T.Ichihara1,N.Inabe1,M.Ishihara1, T.Kubo1,H.Kumagai1,T.Nakagawa1,I.Tanihata1,M.Adachi2, M.Koguchi2,H.Sagawa3,S.Shimoura3 Cyclotron Lab., Inst. of Phys.+ Chem. Res., Saitama1 Tokyo Inst.of Technology, Tokyo2 Univ. of Tokyo, Tokyo3
errorX(1989)X