Measurement of the branching fractions of exclusive B̄ → D/D */D(*)πℓ-̄νℓ decays in events tagged by a fully reconstructed B meson

Author(s): Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, JP; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A; Garra Tico, J; Grauges, E; Lopez, L; Palano, A; Pappagallo, M; Eigen, G; Stugu, B; Sun, L; Abrams, GS; Battaglia, M; Brown, DN; Button-Shafer, J; Cahn, RN; Groysman, Y; Jacobsen, RG; Kadyk, JA; Kerth, LT; Kolomensky, YG; Kukartsev, G; Lopes Pegna, D; Lynch, G; Mir, LM; Orimoto, TJ; Osipenkov, IL; Ronan, MT; Tackmann, K; Tanabe, T; Wenzel, WA; Del Amo Sanchez, P; Hawkes, CM; Watson, AT; Koch, H; Schroeder, T; Walker, D; Asgeirsson, DJ; Cuhadar-Donszelmann, T; Fulsom, BG; Hearty, C; Mattison, TS; McKenna, JA; Khan, A; Saleem, M; Teodorescu, L; Blinov, VE; Bukin, AD; Druzhinin, VP; Golubev, VB; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Todyshev, KY; Bondioli, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, AJ; Lund, P; Mandelkern, M; Martin, EC; Stoker, DP; Abachi, S; Buchanan, C; Foulkes, SD; Gary, JW; Liu, F; Long, O; Shen, BC; Vitug, GM; Zhang, L; Paar, HP; Rahatlou, S; Sharma, V; Berryhill, JW; Campagnari, C; Cunha, A | Abstract: We present a measurement of the branching fractions for B → D/D * /D( * )πl-νl decays based on 341.1 fb-1 of data collected at the γ(4S) resonance with the BABAR detector at the PEP-II e + e - storage rings. Events are tagged by fully reconstructing one of the B mesons in a hadronic decay mode. We obtain B(B- → D0l-νl) = (2.33 ± 0.09 (stat.) ± 0.09 (syst.))%, B(B- → D * 0l-νl) = (5.83±0.15 (stat.)±0.30 (syst.))%, B(B0 → D+l-νl) = (2.21±0.11 (stat.)±0.12 (syst.))%, B(B0 → D * +l-νl) = (5.49 ± 0.16 (stat.) ± 0.25 (syst.))%, B(B- → D+π-l-νl) = (0.42 ± 0.06 (stat.) ± 0.03 (syst.))%, B(B- → D * +π-l-νl) = (0.59±0.05 (stat.)±0.04 (syst.))%, B(B0 → D * π+l- νl) = (0.43±0.08 (stat.)±0.03 (syst.))% and B(B0 → D * 0π+l-νl) = (0.48±0.08 (stat.)±0.04 (syst.))%.