Determination of vertical bar V-cb vertical bar using the semileptonic decay (B)over-bar0 -> D*(+)e(-)(nu)over-bar
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2002 |
| 卷号 | 526期号:3--4页码:247-257 |
| 关键词 | (B)OVER-BAR->D((ASTERISK))L(NU)OVER-BAR FORM-FACTORS MODEL-INDEPENDENT EXTRACTION BRANCHING FRACTIONS DISPERSIVE BOUNDS CONSTRAINTS |
| 通讯作者 | Abe, K (reprint author), KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan. |
| 英文摘要 | We present a measurement of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element \V-cb\ using a 10.2 fb(-1) data sample recorded at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. By extrapolating the differential decay width of the (B) over bar (0) --> D*(+)e(-)(v) over bar decay to the kinematic limit at which the D*(+) is at rest with respect to the (B) over bar (0,) we extract the product of \V-cb\ with the normalization of the decay form factor F(1), \V-cb\F(1) = (3.54 +/- 0.19 +/- 0.18) x 10(-2), where the first error is statistical and the second is systematic. A value Of \V-cb\ = (3.88 +/- 0.21 +/- 0.20 +/- 0.19) x 10(-2) is obtained using a theoretical calculation of F(l), where the third error is due to the theoretical uncertainty in the value of F(l). The branching fraction B((B) over bar (0) --> D*(+)e(-) (v) over bar) is measured to be (4.59 +/- 0.23 +/- 0.40) x 10(-2). (C) 2002 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000173827100008 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212171]  |
| 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 | Belle Collaboration. Determination of vertical bar V-cb vertical bar using the semileptonic decay (B)over-bar0 -> D*(+)e(-)(nu)over-bar[J]. PHYSICS LETTERS B,2002,526(3--4):247-257. |
| APA | Belle Collaboration.(2002).Determination of vertical bar V-cb vertical bar using the semileptonic decay (B)over-bar0 -> D*(+)e(-)(nu)over-bar.PHYSICS LETTERS B,526(3--4),247-257. |
| MLA | Belle Collaboration."Determination of vertical bar V-cb vertical bar using the semileptonic decay (B)over-bar0 -> D*(+)e(-)(nu)over-bar".PHYSICS LETTERS B 526.3--4(2002):247-257. |
入库方式： OAI收割
来源：高能物理研究所
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