Aubert, B; Bona, M; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, JP; Poireau, V; Tisserand, V; Zghiche, A; Grauges, E; Palano, A; Chen, JC; Qi, ND; Rong, G; Wang, P; Zhu, YS; Eigen, G; Ofte, I; Stugu, B; Abrams, GS; Battaglia, M; Brown, DN; Button-Shafer, J; Cahn, RN; Charles, E; Gill, MS; Groysman, Y; Jacobsen, RG; Kadyk, JA; Kerth, LT; Kolomensky, Yu G; Kukartsev, G; Lynch, G; Mir, LM; Orimoto, TJ; Pripstein, M; Roe, NA; Ronan, MT; Wenzel, WA; del Amo Sanchez, P; Barrett, M; Ford, KE; Hart, AJ; Harrison, TJ; Hawkes, CM; Watson, AT; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Peters, K; Schroeder, T; Steinke, M; Boyd, JT; Burke, JP; Cottingham, WN; Walker, D; Asgeirsson, DJ; Cuhadar-Donszelmann, T; Fulsom, BG; Hearty, C; Knecht, NS; Mattison, TS; McKenna, JA; Khan, A; Kyberd, P; Saleem, M; Sherwood, DJ; Teodorescu, L; Blinov, VE; Bukin, AD; Druzhinin, VP; Golubev, VB; Onuchin, AP; Serednyakov, SI; Skovpen, Yu I; Solodov, EP; Todyshev, K Yu; Bondioli, M; Bruinsma, M; Chao, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, AJ

doi:10.1103/physrevd.74.091105

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Measurement of the ratio B(B+→Xeν)/B(B0→Xeν)

2006

Aubert, B;
Bona, M;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
Tisserand, V;
Zghiche, A;
Grauges, E;
Palano, A;
Chen, JC;
Qi, ND;
Rong, G;
Wang, P;
Zhu, YS;
Eigen, G;
Ofte, I;
Stugu, B;
Abrams, GS;
Battaglia, M;
Brown, DN;
Button-Shafer, J;
Cahn, RN;
Charles, E;
Gill, MS;
Groysman, Y;
Jacobsen, RG;
Kadyk, JA;
Kerth, LT;
Kolomensky, Yu G;
Kukartsev, G;
Lynch, G;
Mir, LM;
Orimoto, TJ;
Pripstein, M;
Roe, NA;
Ronan, MT;
Wenzel, WA;
del Amo Sanchez, P;
Barrett, M;
Ford, KE;
Hart, AJ;
Harrison, TJ;
Hawkes, CM;
Watson, AT;
Held, T;
Koch, H;
Lewandowski, B;
Pelizaeus, M;
Peters, K;
Schroeder, T;
Steinke, M;
Boyd, JT;
Burke, JP;
Cottingham, WN;
Walker, D;
Asgeirsson, DJ;
Cuhadar-Donszelmann, T;
Fulsom, BG;
Hearty, C;
Knecht, NS;
Mattison, TS;
McKenna, JA;
Khan, A;
Kyberd, P;
Saleem, M;
Sherwood, DJ;
Teodorescu, L;
Blinov, VE;
Bukin, AD;
Druzhinin, VP;
Golubev, VB;
Onuchin, AP;
Serednyakov, SI;
Skovpen, Yu I;
Solodov, EP;
Todyshev, K Yu;
Bondioli, M;
Bruinsma, M;
Chao, M;
Curry, S;
Eschrich, I;
Kirkby, D;
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et al.

Published Web Location

https://doi.org/10.1103/physrevd.74.091105

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Abstract

We report measurements of the inclusive electron momentum spectra in decays of charged and neutral B mesons, and of the ratio of semileptonic branching fractions B(B+→Xeν) and B(B0→Xeν). These were performed on a sample of 231×106 BB̄ events recorded with the BABAR detector at the Υ(4S) resonance. Events are selected by fully reconstructing a hadronic decay of one B meson and identifying an electron among the decay products of the recoiling B̄ meson. We obtain B(B+→Xeν)/B(B0→Xeν)=1. 074±0.041(stat)±0.026(syst). © 2006 The American Physical Society.

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Measurement of the ratio B(B+→Xeν)/B(B0→Xeν)

Published Web Location