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| 題名: | First Measurement of Inclusive B -> X(s)eta Decays |
| 作者: | Nishimura,K;Browder,TE;Adachi,I;Aihara,H;Arinstein,K;Aushev,T;Bakich,AM;Balagura,V;Barberio,E;Belous,K;Bhardwaj,V;Bischofberger,M;Bondar,A;Bozek,A;Bracko,M;Chang,MC;Chao,Y;Chen,A;Chen,KF;Chen,P;Cheon,BG;Chiang,CC;Cho,IS;Choi,Y;Dalseno,J;Danilov,M;Dolezal,Z;Drutskoy,A;Eidelman,S;Gabyshev,N;Golob,B;Ha,H;Haba,J;Hara,T;Hayasaka,K;Hayashii,H;Horii,Y;Hoshi,Y;Hou,WS;Hyun,HJ;Iijima,T;Inami,K;Itoh,R;Iwabuchi,M;Iwasaki,Y;Joshi,NJ;Julius,T;Kang,JH;Kapusta,P;Kawai,H;Kawasaki,T;Kichimi,H;Kiesling,C;Kim,HJ;Kim,HO;Kim,MJ;Kim,YJ;Kinoshita,K;Ko,BR;Kodys,P;Korpar,S;Krizan,P;Kumita,T;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lange,JS;Lee,MJ;Lee,SH;Li,J;Liu,C;Liu,Y;Liventsev,D;Louvot,R;Matyja,A;McOnie,S;Miyabayashi,K;Miyata,H;Miyazaki,Y;Mohanty,GB;Mori,T;Nakano,E;Nakao,M;Nakazawa,H;Natkaniec,Z;Nishida,S;Ogawa,S;Ohshima,T;Olsen,SL;Ostrowicz,W;Pakhlova,G;Park,CW;Park,H;Park,HK;Park,KS;Pestotnik,R;Petric,M;Piilonen,LE;Rohrken,M;Ryu,S;Sahoo,H;Sakai,Y;Schneider,O;Schwanda,C;Schwartz,AJ;Senyo,K;Seon,O;Sevior,ME;Shapkin,M;Shen,CP;Shiu,JG;Simon,F;Smerkol,P;Sokolov,A;Solovieva,E;Staric,M;Sumiyoshi,T;Suzuki,S;Teramoto,Y;Trabelsi,K;Uehara,S;Uglov,T;Unno,Y;Uno,S;Varner,G;Varvell,KE;Vervink,K;Wang,CH;Wang,MZ;Wang,P;Watanabe,Y;Wicht,J;Williams,KM;Won,E;Yamashita,Y;Yamauchi,M;Zhang,CC;Zhang,ZP;Zhou,P;Zhulanov,V;Zivko,T;Zupanc,A;Zyukova,O |
| 貢獻者: | 物理學系 |
| 日期: | 2010 |
| 上傳時間: | 2012-06-11 10:42:50 (UTC+8) |
| 出版者: | 國立中央大學 |
| 摘要: | We report a first measurement of inclusive B -> X(s)eta decays, where X(s) is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657 x 10(6)B (B) over bar pairs accumulated with the Belle detector at the KEKB e(+)e(-) collider. For M(X1) < 2.6 GeV/c(2), we measure a branching fraction of [26.1 +/- 3.0(stat)(-2.1)(+1.9)(syst)(-7.1)(+4.0)(model)] x 10(-5) and a direct CP asymmetry of A(CP) = 0.13 +/- 0.04(-0.03)(+0.02). Over half of the signal occurs in the range M(X2) > 1.8 GeV/c(2). |
| 關聯: | PHYSICAL REVIEW LETTERS |
| 顯示於類別: | [物理學系] 期刊論文
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