A Measurement of the Branching Fractions of Exclusive $\bar{B} \to D^{()}(\pi)l^-\bar{\nu}_l$ Decays in Events with a Fully Reconstructed B Meson

A Measurement of the Branching Fractions of Exclusive $\bar{B} \to D^{()}(\pi)l^-\bar{\nu}_l$ Decays in Events with a Fully Reconstructed B Meson

We report a measurement of the branching fractions for Bbar -> D(*)(pi)l-nubar decays based on 341.1 fb-1 of data collected at the Upsilon(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...

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Veröffentlicht in:Physical review letters 2008, Vol.100
Hauptverfasser: Aubert, B., Bona, M., Karyotakis, Y., P. Lees, J., 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., S. Abrams, G., Battaglia, M., N. Brown, D., Button-Shafer, J., N. Cahn, R., G. Jacobsen, R., A. Kadyk, J., T. Kerth, L., G. Kolomensky, Yu, Kukartsev, G., Lynch, G., L. Osipenkov, I., T. Ronan, M., Tackmann, K., Tanabe, T., Wenzel, W.A., del Amo Sanchez, P., M. Hawkes, C., Soni, N., T. Watson, A., Koch, H., Schroeder, T., Walker, D., J. Asgeirsson, D., Cuhadar-Donszelmann, T., G. Fulsom, B., Hearty, C., S. Mattison, T., A. Mckenna, J., Barrett, M., Khan, A., Saleem, M., Teodorescu, L., E. Blinov, V., D. Bukin, A., R. Buzykaev, A., P. Druzhinin, V., B. Golubev, V., P. Onuchin, A., I. Serednyakov, S., I. Skovpen, Yu, P. Solodov, E., Yu. Todyshev, K., Bondioli, M., Curry, S., Eschrich, I., Kirkby, D., J. Lankford, A., Lund, P., Mandelkern, M., C. Martin, E., P. Stoker, D., Abachi, S., Buchanan, C., W. Gary, J., Liu, F., Long, O., C. Shen, B., M. Vitug, G., Yasin, Z., Zhang, L., P. Paar, H., Rahatlou, S., Sharma, V., Campagnari, C., M. Hong, T., Kovalskyi, D., D. Richman, J., W. Beck, T., M. Eisner, A., J. Flacco, C., Heusch, C.A., Kroseberg, J., S. Lockman, W., Schalk, T., A. Schumm, B., Seiden, A., G. Wilson, M., O. Winstrom, L., Chen, E., H. Cheng, C., Doll, D.A., Echenard, B., Fang, F.
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Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:We report a measurement of the branching fractions for Bbar -> D(*)(pi)l-nubar decays based on 341.1 fb-1 of data collected at the Upsilon(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-nubar) = (2.33 +/- 0.09(stat.) +/- 0.09(syst.))%, B(B- -> D*0l-nubar) = (5.83 +/- 0.15(stat.) +/- 0.30(syst.))%, B(B0bar -> D+l-nubar) = (2.21 +/- 0.11(stat.) +/- 0.12(syst.))%, B(B0bar -> D*+l-nubar) = (5.49 +/- 0.16(stat.) +/- 0.25(syst.))%, B(B- -> D+pi-l-nubar) = (0.42 +/- 0.06(stat.) +/- 0.03(syst.))%, B(B- -> D*+pi-l-nubar) = (0.59 +/- 0.05(stat.) +/- 0.04(syst.))%, B(B0bar -> D0pi+l-nubar) = (0.43 +/- 0.08(stat.) +/- 0.03(syst.))%, and B(B0bar -> D*0pi+l-nubar) = (0.48 +/- 0.08(stat.) +/- 0.04(syst.))%.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.100.151802