Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence
文献类型：期刊论文
| 作者 | BaBar Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2006 |
| 卷号 | 96期号:22 |
| 关键词 | MESON DECAYS HIGH-ENERGY SPECTRUM PHYSICS |
| 通讯作者 | Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France. |
| 英文摘要 | We report two novel determinations of vertical bar V-ub vertical bar with reduced model dependence, based on measurements of the mass distribution of the hadronic system in semileptonic B decays. Events are selected by fully reconstructing the decay of one B meson and identifying a charged lepton from the decay of the other B meson from Y(4S) -> B (B) over bar events. In one approach, we combine the inclusive (B) over bar -> X(u)l (v) over bar rate, integrated up to a maximum hadronic mass m(X) < 1.67 GeV/c(2), with a measurement of the inclusive B -> X-s gamma photon energy spectrum. We obtain vertical bar V-ub vertical bar = (4.43 +/- 0.38(stat) +/- 0.25(syst) +/- 0.29(theo)) x 10(-3). In another approach we measure the total (B) over bar -> X(u)l (v) over bar rate over the full phase space and find vertical bar V-ub vertical bar = 3.84 +/- 0.70(stat) +/- 0.30(syst) +/- 0.10(theo)) x 10(-3). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238161400013 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212666]  |
| 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. Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence[J]. PHYSICAL REVIEW LETTERS,2006,96(22). |
| APA | BaBar Collaboration.(2006).Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence.PHYSICAL REVIEW LETTERS,96(22). |
| MLA | BaBar Collaboration."Determinations of vertical bar V-ub vertical bar from inclusive semileptonic B decays with reduced model dependence".PHYSICAL REVIEW LETTERS 96.22(2006). |
入库方式： OAI收割
来源：高能物理研究所
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