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| 題名: | Observation of D(+) -> K(+)eta(()'()) and Search for CP Violation in D(+) -> pi(+)eta(()'()) Decays |
| 作者: | Won,E;Ko,BR;Adachi,I;Aihara,H;Arinstein,K;Asner,DM;Aushev,T;Bakich,AM;Barberio,E;Bay,A;Bhardwaj,V;Bhuyan,B;Bischofberger,M;Bondar,A;Bozek,A;Bracko,M;Brodzicka,J;Browder,TE;Chang,P;Chen,A;Chen,P;Cheon,BG;Chilikin,K;Cho,IS;Cho,K;Choi,SK;Choi,Y;Dalseno,J;Danilov,M;Dolezal,Z;Drasal,Z;Drutskoy,A;Eidelman,S;Fast,JE;Gaur,V;Gabyshev,N;Garmash,A;Goh,YM;Golob,B;Haba,J;Hara,T;Hayasaka,K;Hayashii,H;Horii,Y;Hoshi,Y;Hou,WS;Hsiung,YB;Hyun,HJ;Iijima,T;Inami,K;Ishikawa,A;Itoh,R;Iwabuchi,M;Iwasaki,Y;Iwashita,T;Joshi,NJ;Julius,T;Kang,JH;Katayama,N;Kawasaki,T;Kichimi,H;Kim,HJ;Kim,HO;Kim,JB;Kim,JH;Kim,KT;Kim,MJ;Kim,SK;Kim,YJ;Kinoshita,K;Kobayashi,N;Koblitz,S;Kodys,P;Korpar,S;Krizan,P;Kumita,T;Kuzmin,A;Kwon,YJ;Lange,JS;Lee,MJ;Lee,SH;Li,J;Li,Y;Libby,J;Lim,CL;Liu,C;Liu,Y;Liventsev,D;Louvot,R;McOnie,S;Miyabayashi,K;Miyata,H;Miyazaki,Y;Mizuk,R;Mohanty,GB;Nagasaka,Y;Nakano,E;Nakao,M;Nakazawa,H;Natkaniec,Z;Neubauer,S;Nishida,S;Nishimura,K;Nitoh,O;Ogawa,S;Ohshima,T;Okuno,S;Olsen,SL;Onuki,Y;Pakhlov,P;Pakhlova,G;Park,H;Park,HK;Park,KS;Pestotnik,R;Petric,M;Piilonen,LE;Rohrken,M;Ryu,S;Sahoo,H;Sakai,K;Sakai,Y;Sanuki,T;Schneider,O;Schwanda,C;Schwartz,AJ;Senyo,K;Seon,O;Sevior,ME;Shen,CP;Shibata,TA;Shiu,JG;Simon,F;Singh,JB;Smerkol,P;Sohn,YS;Sokolov,A;Solovieva,E;Stanic,S;Staric,M;Sumihama,M;Sumiyoshi,T;Suzuki,S;Tatishvili,G;Teramoto,Y;Trabelsi,K;Uchida,M;Uehara,S;Uglov,T;Unno,Y;Uno,S;Usov,Y;Vahsen,SE;Varner,G;Vinokurova,A;Wang,CH;Wang,MZ;Wang,P;Watanabe,M;Watanabe,Y;Williams,KM;Yabsley,BD;Yamashita,Y;Yamauchi,M;Zhang,ZP;Zhilich,V;Zhulanov,V;Zupanc,A;Zyukova,O |
| 貢獻者: | 物理學系 |
| 關鍵詞: | BELLE |
| 日期: | 2011 |
| 上傳時間: | 2012-06-11 10:51:00 (UTC+8) |
| 出版者: | 國立中央大學 |
| 摘要: | We report the first observation of the doubly Cabibbo-suppressed decays D(+) -> K(+)eta(()'()) using a 791 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D(+) -> pi(+)eta(()'()) decays are B(D(+) -> K(+)eta) / B(D(+) -> pi(+)eta) =(3.06 +/- 0.43 +/- 0.14)% and B(D(+) -> K(+)eta')/B(D(+)->pi(+)eta') = (3.77 +/- 0.39 +/- 0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D(+) decays, delta(TA), is (72 +/- 9)degrees or (288 +/- 9)degrees. We also report the most precise measurements of CP asymmetries to date: A(CP)(D+->pi+eta) = (+1.74 +/- 1.13 +/- 0.19)% and A(CP)(D+->pi+eta') = (-0.12 +/- 1.12 +/- 0.17)%. |
| 關聯: | PHYSICAL REVIEW LETTERS |
| 顯示於類別: | [物理學系] 期刊論文
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