Measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda mu(+)nu(mu)
文献类型：期刊论文
| 作者 | BESIII Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2017 |
| 卷号 | 767页码:42-47 |
| 关键词 | Lambda(+)(c) Semi-leptonic decay Absolute branching fraction BESIII |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2017.01.047 |
| 文献子类 | Article |
| 英文摘要 | We report the first measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda mu(+)nu(mu).This measurement is based on a sample of e+e(-) annihilation data produced at a center-of-mass energy root s = 4.6 GeV, collected with the BESIII detector at the BEPCII storage rings. The sample corresponds to an integrated luminosity of 567 pb(-1). The branching fraction is determined to be B( Lambda(+)(c) -> Lambda mu(+)nu(mu)) = (3.49 +/- 0.46( stat) +/- 0.27( syst))%. In addition, we calculate the ratio B( Lambda(+)(c) -> Lambda mu(+)nu(mu))/B(Lambda(+)(c) -> Lambda e(+)nu(e) to be 0.96 +/- 0.16( stat) +/- 0.04( syst). (C) 2017 The Author(s). Published by Elsevier B.V. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | SEMILEPTONIC DECAYS ; CHARMED BARYONS ; HEAVY-QUARK ; PREDICTIONS ; MODEL |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000397861700008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284383]  |
| 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 | BESIII Collaboration. Measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda mu(+)nu(mu)[J]. PHYSICS LETTERS B,2017,767:42-47. |
| APA | BESIII Collaboration.(2017).Measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda mu(+)nu(mu).PHYSICS LETTERS B,767,42-47. |
| MLA | BESIII Collaboration."Measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda mu(+)nu(mu)".PHYSICS LETTERS B 767(2017):42-47. |
入库方式： OAI收割
来源：高能物理研究所
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