Study of ! K S decay at B elle

D.Epifanov,I.Adachi,H.Aihara,K.Arinstein, V.Aulchenko,T.Aushev,A.M .Bakich,V.Balagura, E.Barberio,I.Bedny,K.Belous,U.Bitenc ,I.Bizjak, A.Bondar,A.Bozek,M .Bra cko,T.E.Browder, Y.Chao,A.Chen,K.-F.Chen,W .T.Chen, B.G.Cheon,C.-C.Chiang,R.Chistov,I.-S.Cho, Y.Choi,Y.K.Choi,J.Dalseno,M .Dash, A.Drutskoy,S.Eidelm an,G.Gokhroo,B.Golob, H.Ha,J.Haba,K.Hayasaka,H.Hayashii,M .Hazum i, D.He ernan ,T.Hokuue,Y.Hoshi,W .-S.Hou, Y.B.Hsiung,H.J.Hyun,T.Iijim a,K.Ikado,K.Inam i, A.Ishikawa,R.Itoh,M .Iwasaki,Y.Iwasaki, D.H.Kah,H.Kaji,J.H.Kang,H.Kawai, T.Kawasaki,H.Kichim i,H.O.Kim ,S.K.Kim , Y.J.Kim ,P.Kri zan,P.Krokovny,R.Kum ar, C.C.Kuo,A.Kuzm in,Y.-J.Kwon,J.S.Lee, M .J.Lee,S.E.Lee,T.Lesiak,J.Li,A.Lim osani, S.-W .Lin,Y.Liu,D.Liventsev,F.M andl,D.M arlow , T.M atsum oto,A.M atyja,S.M cOnie ,T.M edvedeva, H.M iyata,Y.M iyazaki,R.M izuk,G.R.M oloney, T.M ori,E.Nakano,M .Nakao,H.Nakazawa, Z.Natkaniec,S.Nishida,O.Nitoh,S.Ogawa, T.Ohshim a,Y.Onuki,W .Ostrowicz,H.Ozaki, P.Pakhlov,G.Pakhlova,H.Palka,C.W .Park,H.Park, K.S.Park,L.S.Peak,R.Pestotnik,L.E.Piilonen, A.Poluektov,H.Sahoo,Y.Sakai,O.Schneider, R.Seidl,K.Senyo,M .E.Sevior,M .Shapkin, H.Shibuya,B.Shwartz,A.Sokolov,A.Som ov,N.Soni,