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Title: | Measurement of the Branching Fractions of Exclusive ¯¯¯B→D(*)(π)l−¯νl Decays in Events with a Fully Reconstructed B Meson |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 16-Apr-2008 |
Publisher: | American Physical Society |
Abstract: | We report a measurement of the branching fractions for ¯¯¯ B → D ( * ) ( π ) ℓ − ¯ ν ℓ decays based on 341.1 fb − 1 of data collected at the Υ ( 4 S ) 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 ℓ − ¯ ν ℓ ) = ( 2.33 ± 0.09 stat ± 0.09 syst ) % , B ( B − → D * 0 ℓ − ¯ ν ℓ ) = ( 5.83 ± 0.15 stat ± 0.30 syst ) % , B ( ¯¯¯ B 0 → D + ℓ − ¯ ν ℓ ) = ( 2.21 ± 0.11 stat ± 0.12 syst ) % , B ( ¯¯¯ B 0 → D * + ℓ − ¯ ν ℓ ) = ( 5.49 ± 0.16 stat ± 0.25 syst ) % , B ( B − → D + π − ℓ − ¯ ν ℓ ) = ( 0.42 ± 0.06 stat ± 0.03 syst ) % , B ( B − → D * + π − ℓ − ¯ ν ℓ ) = ( 0.59 ± 0.05 stat ± 0.04 syst ) % , B ( ¯¯¯ B 0 → D 0 π + ℓ − ¯ ν ℓ ) = ( 0.43 ± 0.08 stat ± 0.03 syst ) % , and B ( ¯¯¯ B 0 → D * 0 π + ℓ − ¯ ν ℓ ) = ( 0.48 ± 0.08 stat ± 0.04 syst ) % . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.100.151802 |
It is part of: | Physical Review Letters, 2008, vol. 100, num. 15, p. 151802 |
URI: | http://hdl.handle.net/2445/140341 |
Related resource: | https://doi.org/10.1103/PhysRevLett.100.151802 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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