We report a measurement of the branching fractions for (B) over bar -> D-(*)(pi)center dot(-)(nu) over bar (center dot) decays based on 341.1 fb(-1) of data collected at the Upsilon(4S) resonance with the BABAR detector at the SLAC 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--> D-0 center dot(-)(nu) over bar (center dot))=(2.33 +/- 0.09(stat)+/- 0.09(syst))%, B(B--> D-*0 center dot(-)(nu) over bar (center dot))=(5.83 +/- 0.15(stat)+/- 0.30(syst))%, B((nu) over bar (0)-> D+center dot(-)(nu) over bar (center dot))=(2.21 +/- 0.11(stat)+/- 0.12(syst))%, B((nu) over bar (0)-> D*+center dot(-)(nu) over bar (center dot))=(5.49 +/- 0.16(stat)+/- 0.25(syst))%, B(B--> D+pi(-)center dot(-)(nu) over bar (center dot))=(0.42 +/- 0.06(stat)+/- 0.03(syst))%, B(B--> D*+pi(-)center dot(-)(nu) over bar (center dot))=(0.59 +/- 0.05(stat)+/- 0.04(syst))%, B((nu) over bar (0)-> D-0 pi(+)center dot(-)(nu) over bar (center dot))=(0.43 +/- 0.08(stat)+/- 0.03(syst))%, and B((nu) over bar (0)-> D-*0 pi(+)center dot(-)(nu) over bar (center dot))=(0.48 +/- 0.08(stat)+/- 0.04(syst))%.

Measurement of the branching fractions of exclusive (B)over-bar -> D-(*)(pi)l(-)(nu)over-bar(l) decays in events with a fully reconstructed b meson / Aubert, B., Bona, M., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, J.g., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G.s., Battaglia, M., Brown, D.n., BUTTON SHAFER, J., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 100:(2008), pp. 151802-151802. [10.1103/physrevlett.100.151802]

Measurement of the branching fractions of exclusive (B)over-bar -> D-(*)(pi)l(-)(nu)over-bar(l) decays in events with a fully reconstructed b meson

CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2008

Abstract

We report a measurement of the branching fractions for (B) over bar -> D-(*)(pi)center dot(-)(nu) over bar (center dot) decays based on 341.1 fb(-1) of data collected at the Upsilon(4S) resonance with the BABAR detector at the SLAC 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--> D-0 center dot(-)(nu) over bar (center dot))=(2.33 +/- 0.09(stat)+/- 0.09(syst))%, B(B--> D-*0 center dot(-)(nu) over bar (center dot))=(5.83 +/- 0.15(stat)+/- 0.30(syst))%, B((nu) over bar (0)-> D+center dot(-)(nu) over bar (center dot))=(2.21 +/- 0.11(stat)+/- 0.12(syst))%, B((nu) over bar (0)-> D*+center dot(-)(nu) over bar (center dot))=(5.49 +/- 0.16(stat)+/- 0.25(syst))%, B(B--> D+pi(-)center dot(-)(nu) over bar (center dot))=(0.42 +/- 0.06(stat)+/- 0.03(syst))%, B(B--> D*+pi(-)center dot(-)(nu) over bar (center dot))=(0.59 +/- 0.05(stat)+/- 0.04(syst))%, B((nu) over bar (0)-> D-0 pi(+)center dot(-)(nu) over bar (center dot))=(0.43 +/- 0.08(stat)+/- 0.03(syst))%, and B((nu) over bar (0)-> D-*0 pi(+)center dot(-)(nu) over bar (center dot))=(0.48 +/- 0.08(stat)+/- 0.04(syst))%.
2008
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the branching fractions of exclusive (B)over-bar -> D-(*)(pi)l(-)(nu)over-bar(l) decays in events with a fully reconstructed b meson / Aubert, B., Bona, M., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, J.g., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G.s., Battaglia, M., Brown, D.n., BUTTON SHAFER, J., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 100:(2008), pp. 151802-151802. [10.1103/physrevlett.100.151802]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/228039
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