Determination of the branching fraction for B -> X(c)l nu decays and of vertical bar V-cb vertical bar from hadronic-mass and lepton-energy moments
文献类型：期刊论文
| 作者 | BaBar Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2004 |
| 卷号 | 93期号:1 |
| 关键词 | SEMILEPTONIC-B MESON DECAYS QCD DISTRIBUTIONS EXPANSION BEAUTY |
| 通讯作者 | Aubert, B (reprint author), Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France. |
| 英文摘要 | We determine the inclusive B-->X(c)lnu branching fraction, B-clnu, the Cabibbo-Kobayashi-Maskawa matrix element \V-cb\, 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/m(b)(3), we extract B-cenu=(10.61+/-0.16(exp)+/-0.06(HQE))% and \V-cb\=(41.4+/-0.4(exp)+/-0.4(HQE)+/-0.6(th))x10(-3). The stated errors refer to the experimental, HQE, and additional theoretical uncertainties. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222390900010 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212407]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | BaBar Collaboration. Determination of the branching fraction for B -> X(c)l nu decays and of vertical bar V-cb vertical bar from hadronic-mass and lepton-energy moments[J]. PHYSICAL REVIEW LETTERS,2004,93(1). |
| APA | BaBar Collaboration.(2004).Determination of the branching fraction for B -> X(c)l nu decays and of vertical bar V-cb vertical bar from hadronic-mass and lepton-energy moments.PHYSICAL REVIEW LETTERS,93(1). |
| MLA | BaBar Collaboration."Determination of the branching fraction for B -> X(c)l nu decays and of vertical bar V-cb vertical bar from hadronic-mass and lepton-energy moments".PHYSICAL REVIEW LETTERS 93.1(2004). |
入库方式： OAI收割
来源：高能物理研究所
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