Measurement of the branching fractions for B(0) -> Ds(*+)pi(-) and B(0) -> D(s)(*-)K(+) decays

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题名:	Measurement of the branching fractions for B(0) -> Ds(+)pi(-) and B(0) -> D(s)(-)K(+) decays
作者:	Joshi,NJ;Aziz,T;Trabelsi,K;Adachi,I;Aihara,H;Arinstein,K;Aulchenko,V;Aushev,T;Bakich,AM;Balagura,V;Barberio,E;Bay,A;Belous,K;Bhardwaj,V;Bischofberger,M;Bondar,A;Bozek,A;Bracko,M;Browder,TE;Chang,MC;Chang,P;Chao,Y;Chen,A;Chen,P;Cheon,BG;Cho,IS;Choi,Y;Dalseno,J;Das,A;Dolezal,Z;Drasal,Z;Drutskoy,A;Eidelman,S;Gabyshev,N;Goldenzweig,P;Golob,B;Ha,H;Haba,J;Han,BY;Hayasaka,K;Hayashii,H;Hazumi,M;Horii,Y;Hoshi,Y;Hou,WS;Hsiung,YB;Hyun,HJ;Iijima,T;Inami,K;Itoh,R;Iwabuchi,M;Iwasaki,M;Iwasaki,Y;Julius,T;Kang,JH;Kawasaki,T;Kim,HJ;Kim,HO;Kim,JH;Kim,SK;Kim,YI;Kim,YJ;Kinoshita,K;Ko,BR;Kodys,P;Kreps,M;Krizan,P;Krokovny,P;Kuhr,T;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lee,MJ;Lee,SH;Li,J;Liu,C;Liu,Y;Liventsev,D;Louvot,R;Matyja,A;McOnie,S;Miyabayashi,K;Miyazaki,Y;Mizuk,R;Mori,T;Nakano,E;Nakao,M;Natkaniec,Z;Neubauer,S;Nishida,S;Nishimura,K;Nitoh,O;Ogawa,S;Ohshima,T;Okuno,S;Olsen,SL;Pakhlova,G;Park,CW;Park,H;Park,HK;Petric,M;Piilonen,LE;Poluektov,A;Ryu,S;Sahoo,H;Sakai,K;Sakai,Y;Schneider,O;Schwanda,C;Schwartz,AJ;Senyo,K;Sevior,ME;Shapkin,M;Shen,CP;Shiu,JG;Shwartz,B;Singh,JB;Smerkol,P;Sokolov,A;Solovieva,E;Stanic,S;Staric,M;Stypula,J;Sumiyoshi,T;Taylor,GN;Teramoto,Y;Uehara,S;Unno,Y;Uno,S;Usov,Y;Varner,G;Varvell,KE;Vervink,K;Wang,CH;Wang,MZ;Wang,P;Wang,XL;Watanabe,Y;Wedd,R;Wiechczynski,J;Won,E;Yabsley,BD;Yamashita,Y;Yamauchi,M;Zhang,CC;Zhang,ZP;Zhilich,V;Zivko,T;Zupanc,A;Zyukova,O
贡献者:	物理學系
日期:	2010
上传时间:	2012-06-11 10:43:51 (UTC+8)
出版者:	國立中央大學
摘要:	We present a study of B(0) -> D(s)(+)pi(-) and B(0) -> D(s)(-)K(+) decays based on a sample of 657 x 10(6) B (B) over bar events collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the branching fractions to be B(B(0) -> D(s)(+)pi(-)) = (1.75 +/- 0.34(stat) +/- 0.17(syst) +/- 0.11(B)) x 10(-5) and B(B(0) -> D(s)(-)K(+)) = (2.02 +/- 0.33(stat) +/- 0.18(syst) +/- 0.13(B)) x 10(-5), with significances of 6.1 and 8.0 standard deviations, respectively. The first uncertainty is statistical, the second is due to the experimental systematics, and the third is from uncertainties in the D(s)(+) decay branching fractions. From our measurements, we obtain the most precise determination so far of R(Dpi), where R(Dpi) is the ratio between amplitudes of the doubly Cabibbo-suppressed decay B(0) -> D(+)pi(-) and the Cabibbo-favored B(0) -> D(-)pi(+) decay.
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理學系] 期刊論文

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