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Aubert, B. et al. (2004) Determination of the Branching Fraction for B→Xcℓν Decays and of |Vcb| from Hadronic-Mass and Lepton-Energy Moments. Physical Review Letters, 93 (1). 011803. ISSN 0031-9007
Metadata only available from this repository.Abstract
We determine the inclusive B→Xcℓν branching fraction, Bcℓν, the Cabibbo-Kobayashi-Maskawa matrix element |Vcb|, and other heavy-quark parameters from a simultaneous fit to moments of the hadronic-mass and lepton-energy distributions in semileptonic B-meson decays, measured as a function of the lower limit on the lepton energy, using data recorded with the BABAR detector. Using heavy-quark expansions (HQEs) to order 1/mb3, we extract Bceν=(10.61±0.16exp±0.06HQE)% and |Vcb|=(41.4±0.4exp±0.4HQE±0.6th)×10-3. The stated errors refer to the experimental, HQE, and additional theoretical uncertainties.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Schools: | School of Applied Sciences |
| Depositing User: | Sharon Beastall |
| Date Deposited: | 06 Apr 2011 12:51 |
| Last Modified: | 06 Apr 2011 12:51 |
| URI: | http://eprints.hud.ac.uk/id/eprint/10045 |
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