T.Abbott1,Y.Akiba2,D.Beavis3,M.A.Bloomer4,P.D.Bond3, C.Chasman3,Z.Chen3,Y.Y.Chu3,B.A.Cole4,J.B.Costales4, H.J.Crawford5,J.B.Cumming3,R.Debbe3,J.Engelage5, S.Y.Fung1,L.Grodzins4,S.Gushue3,H.Hamagaki2,O.Hansen3, R.Hayano6,S.Hayashi2,S.Homma2,H.Z.Huang4,Y.Ikeda2, I.Juricic7,J.Kang1,S.Kaufman8,K.Kimura9,K.Kitamura10, K.Kurita7,R.J.Ledoux4,M.J.Levine3,Y.Miake3,R.J.Morse4, B.Moskowitz3,S.Nagamiya7,J.Olness3,C.G.Parsons4, L.P.Remsberg3,D.Roehrich3,H.Sakurai6,M.Sarabura4, A.Shor10,P.Stankus7,S.G.Steadman4,G.S.F.Stephans4, T.Sugitate10,M.Tanaka3,M.J.Tannenbaum3,M.Torikoshi2,3, J.H.Van.Dijk3,F.Videbaek8,M.Vient1,P.Vincent3, O.Vossnack7,E.Vulgaris4,V.Vutsadakis4,W.A.Watson Iii3, H.E.Wegner3,D.S.Woodruff4,Y.D.Wu7,W.Zajc7 United States of America1 Institute for Nuclear Study, Univ. of Tokyo, Tanashi2 Brookhaven National Laboratory, Upton, NY3 Massachusetts Institute of Technology, Cambridge, MA4 United States of America5 Univ. of Tokyo, Tokyo6 Columbia University, New York, NY7 Argonne National Laboratory, Argonne, IL8 Kyushu Univ., Fukuoka9 Hiroshima Univ., Hiroshima and Higashi-Hiroshima10
Physics Letters,Section B271(1991)447