Observation of B(+) -> (D)over-bar*(0)tau(+) v(tau) and evidence for B(+) -> (D)over-bar(0)tau(+) v(tau) at Belle

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题名:	Observation of B(+) -> (D)over-bar*(0)tau(+) v(tau) and evidence for B(+) -> (D)over-bar(0)tau(+) v(tau) at Belle
作者:	Bozek,A;Rozanska,M;Adachi,I;Aihara,H;Arinstein,K;Aulchenko,V;Aushev,T;Aziz,T;Bakich,AM;Bhardwaj,V;Bischofberger,M;Bondar,A;Bracko,M;Browder,TE;Chao,Y;Chen,A;Cheon,BG;Cho,IS;Choi,KS;Choi,Y;Dalseno,J;Dolezal,Z;Drasal,Z;Drutskoy,A;Dungel,W;Eidelman,S;Goldenzweig,P;Golob,B;Ha,H;Hara,K;Hasegawa,Y;Hayashii,H;Higuchi,T;Horii,Y;Hoshi,Y;Hou,WS;Hyun,HJ;Iijima,T;Inami,K;Iwabuchi,M;Iwasaki,Y;Joshi,NJ;Kang,JH;Kapusta,P;Kawai,H;Kawasaki,T;Kichimi,H;Kiesling,C;Kim,HO;Kim,JH;Kim,MJ;Kim,SK;Kim,YJ;Ko,BR;Korpar,S;Krizan,P;Krokovny,P;Kuhr,T;Kumita,T;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lee,MJ;Lee,SH;Li,J;Liventsev,D;Louvot,R;Matyja,A;McOnie,S;Miyata,H;Miyazaki,Y;Mizuk,R;Mohanty,GB;Nakano,E;Nakao,M;Nakazawa,H;Neubauer,S;Nishida,S;Nitoh,O;Nozaki,T;Ogawa,S;Ohshima,T;Okuno,S;Olsen,SL;Ostrowicz,W;Pakhlov,P;Pakhlova,G;Park,CW;Park,HK;Pestotnik,R;Petric,M;Piilonen,LE;Sahoo,H;Sakai,Y;Schneider,O;Schumann,J;Schwanda,C;Schwartz,AJ;Senyo,K;Shiu,JG;Shwartz,B;Sinha,R;Smerkol,P;Sokolov,A;Solovieva,E;Staric,M;Stypula,J;Sumiyoshi,T;Taylor,GN;Teramoto,Y;Tikhomirov,I;Trabelsi,K;Uehara,S;Unno,Y;Uno,S;Varner,G;Varvell,KE;Vervink,K;Wang,CH;Wang,MZ;Wang,P;Watanabe,Y;Wedd,R;Won,E;Yabsley,BD;Yamashita,Y;Zhulanov,V;Zivko,T;Zupanc,A
贡献者:	物理學系
关键词:	BRANCHING RATIO;MESON DECAYS
日期:	2010
上传时间:	2012-06-11 10:44:33 (UTC+8)
出版者:	國立中央大學
摘要:	We present measurements of B(+) -> (D) over bar(0)tau(+) v(tau) and B(+) -> (D) over bar (0)tau(+) v(tau) decays in a data sample of 657 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find 446(-56)(+58) B(+) -> (D) over bar(0)tau(+) v(tau) events with a significance of 8.1 standard deviations, and 146(-41)(+42) B(+) -> (D) over bar (0)tau(+) v(tau) events with a significance of 3.5 standard deviations. The latter signal provides the first evidence for this decay mode. The measured branching fractions are B(B(+) -> (D) over bar*(0)tau(+) v(tau)) = (2.12(-0.27)(+0.28) (stat) +/- 0.29(syst))% and B(B(+) -> (D) over bar (0)tau(+) v(tau) ) = (0.77 +/- 0.22(stat) +/- 0.12(syst))%.
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理學系] 期刊論文

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