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    题名: Measurement of the form factors of the decay B(0) -> D*(-) l(+) v(l) and determination of the CKM matrix element vertical bar V(cb)vertical bar
    作者: Dungel,W;Schwanda,C;Adachi,I;Aihara,H;Aushev,T;Aziz,T;Bakich,AM;Balagura,V;Barberio,E;Bischofberger,M;Bozek,A;Bracko,M;Browder,TE;Chang,P;Chao,Y;Chen,A;Chen,P;Cheon,BG;Chistov,R;Cho,IS;Cho,K;Choi,KS;Choi,Y;Dalseno,J;Drutskoy,A;Eidelman,S;Ha,H;Haba,J;Hayashii,H;Horii,Y;Hoshi,Y;Hou,WS;Iijima,T;Inami,K;Iwabuchi,M;Iwasaki,Y;Joshi,NJ;Julius,T;Kang,JH;Kawasaki,T;Kim,HJ;Kim,HO;Kim,JH;Kim,MJ;Kim,YJ;Kinoshita,K;Ko,BR;Krizan,P;Krokovny,P;Kuhr,T;Kumita,T;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lee,MJ;Lee,SH;Li,J;Limosani,A;Liu,C;Liu,Y;Liventsev,D;Louvot,R;Matyja,A;McOnie,S;Miyata,H;Mizuk,R;Mohanty,GB;Mori,T;Nakano,E;Nakao,M;Natkaniec,Z;Neubauer,S;Nishida,S;Nitoh,O;Nozaki,T;Ohshima,T;Okuno,S;Olsen,SL;Pakhlova,G;Park,CW;Park,H;Park,HK;Petric,M;Piilonen,LE;Prim,M;Rohrken,M;Rozanska,M;Ryu,S;Sahoo,H;Sakai,K;Sakai,Y;Schneider,O;Schwartz,AJ;Senyo,K;Sevior,ME;Shiu,JG;Singh,JB;Smerkol,P;Sokolov,A;Stanic,S;Staric,M;Sumiyoshi,T;Suzuki,S;Tanaka,S;Taylor,GN;Teramoto,Y;Trabelsi,K;Uehara,S;Uglov,T;Unno,Y;Uno,S;Urquijo,P;Varner,G;Varvell,KE;Vervink,K;Wang,CH;Wang,P;Watanabe,M;Watanabe,Y;Wedd,R;Williams,KM;Won,E;Yamashita,Y;Zander,D;Zhang,ZP;Zhou,P;Zhulanov,V;Zivko,T
    贡献者: 物理學系
    关键词: SEMILEPTONIC DECAY;HEAVY MESONS;MONTE-CARLO;BELLE;IDENTIFICATION;SYMMETRY;DETECTOR;KEKB
    日期: 2010
    上传时间: 2012-06-11 10:44:10 (UTC+8)
    出版者: 國立中央大學
    摘要: This article describes a determination of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V(cb)vertical bar from the decay B(0) -> D*(-) l(+) v(l) using 711 fb(-1) of Belle data collected near the Y(4S) resonance. We simultaneously measure the product of the form factor normalization F(1) and the matrix element vertical bar V(cb)vertical bar as well as the three parameters rho(2), R(1)(1) and R(2)(1), which determine the form factors of this decay in the framework of the heavy quark effective theory. The results, based on about 120 000 reconstructed B(0) -> D*(-) l(+) v(l) decays, are rho(2) = 1.214 +/- 0.034 +/- 0.009, R(1)(1) = 1.401 +/- 0.034 +/- 0.018, R(2)(1) = 0.864 +/- 0.024 +/- 0.008 and F(1)vertical bar V(cb)vertical bar = (34.6 +/- 0.2 +/- 1.0) x 10(-3). The branching fraction of B(0) -> D*(-) l(+) v(l) is measured at the same time; we obtain a value of B(0) -> D*(-) l(+) v(l) = (4.58 +/- 0.03 +/- 0.26)%. The errors correspond to the statistical and systematic uncertainties. These results give the most precise determination of the form factor parameters and F(1)vertical bar V(cb)vertical bar to date. In addition, a direct, model-independent determination of the form factor shapes has been carried out.
    關聯: PHYSICAL REVIEW D
    显示于类别:[物理學系] 期刊論文

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