Measurement of the decay B(0) -> pi(-) l(+) nu and determination of vertical bar V(ub)vertical bar

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题名:	Measurement of the decay B(0) -> pi(-) l(+) nu and determination of vertical bar V(ub)vertical bar
作者:	Ha,H;Won,E;Adachi,I;Aihara,H;Aziz,T;Bakich,AM;Balagura,V;Barberio,E;Bay,A;Belous,K;Bhardwaj,V;Bhuyan,B;Bischofberger,M;Bondar,A;Bozek,A;Bracko,M;Browder,TE;Chao,Y;Chen,A;Chen,P;Cheon,BG;Chiang,CC;Cho,IS;Cho,K;Choi,KS;Choi,Y;Dalseno,J;Danilov,M;Dolezal,Z;Drutskoy,A;Dungel,W;Eidelman,S;Gabyshev,N;Golob,B;Haba,J;Hayasaka,K;Hayashii,H;Horii,Y;Hoshi,Y;Hou,WS;Hsiung,YB;Hyun,HJ;Iijima,T;Inami,K;Itoh,R;Iwabuchi,M;Iwasaki,Y;Joshi,NJ;Julius,T;Kang,JH;Kawasaki,T;Kiesling,C;Kim,HJ;Kim,HO;Kim,MJ;Kim,SK;Kim,YJ;Kinoshita,K;Ko,BR;Korpar,S;Krizan,P;Kuhr,T;Kumita,T;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lange,JS;Lee,MJ;Lee,SH;Li,Y;Limosani,A;Liu,C;Liu,Y;Liventsev,D;Louvot,R;McOnie,S;Miyabayashi,K;Miyata,H;Miyazaki,Y;Mohanty,GB;Mori,T;Nagasaka,Y;Nakano,E;Nakao,M;Nakazawa,H;Natkaniec,Z;Neubauer,S;Nishida,S;Nishimura,K;Nitoh,O;Nozaki,T;Ogawa,S;Ohshima,T;Okuno,S;Olsen,SL;Pakhlov,P;Pakhlova,G;Park,CW;Park,H;Park,HK;Pestotnik,R;Petri,M;Piilonen,LE;Rohrken,M;Ryu,S;Sahoo,H;Sakai,Y;Schneider,O;Schwanda,C;Schwartz,AJ;Senyo,K;Sevior,ME;Shapkin,M;Shen,CP;Shiu,JG;Simon,F;Smerkol,P;Sohn,YS;Sokolov,A;Stanic,S;Staric,M;Sumiyoshi,T;Teramoto,Y;Trabelsi,K;Uehara,S;Uglov,T;Unno,Y;Uno,S;Vahsen,SE;Varner,G;Varvell,KE;Vossen,A;Wang,CH;Wang,MZ;Wang,P;Watanabe,M;Watanabe,Y;Yamashita,Y;Zhang,ZP;Zhou,P;Zhulanov,V;Zivko,T;Zupanc,A
贡献者:	物理學系
关键词:	FORM-FACTORS;MESON DECAYS;MONTE-CARLO;HEAVY;SYMMETRY;PHYSICS;SHAPES
日期:	2011
上传时间:	2012-06-11 10:49:42 (UTC+8)
出版者:	國立中央大學
摘要:	We present a measurement of the charmless semileptonic decay B(0) -> pi(-) l(+) nu using a data sample containing 657 x 10(6) B (B) over bar events collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider operating near the Y(4S) resonance. We determine the total branching fraction of the decay, B(B(0) -> pi(-) l(+) nu) = (1.49 +/- 0.04(stat) +/- 0.07(syst)) x 10(-)4. We also report a new precise measurement of the differential decay rate and extract the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V(ub)vertical bar using model-independent and model-dependent approaches. From a simultaneous fit to the measured differential decay rate and lattice QCD results, we obtain vertical bar V(ub)vertical bar (3.43 +/- 0: 33) x 10(-3), where the error includes both experimental and theoretical uncertainties.
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理學系] 期刊論文

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