A.Ozawa1, T.Kobayashi1, H.Sato1, D.Hirata1, I.Tanihata1, O.Yamakawa2, K.Omata3, K.Sugimoto4, D.Olson3, W.Christie5, H.Wieman5 Inst.of Physical and Chemical Res. (RIKEN1 Japan2 Institute for Nuclear Study, Univ. of Tokyo, Tanashi3 Osaka Univ., Osaka4 Univ. of Calif. Lawrence Berkeley Lab., Berkeley, CA5
Physics Letters,Section B334(1994)18