Measurement of the leptonic decay width of J/psi using initial state radiation
文献类型：期刊论文
| 作者 | BESIII Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2016 |
| 卷号 | 761页码:98 |
| 关键词 | J/psi resonance Electronic width Initial state radiation BESIII |
| DOI | 10.1016/j.physletb.2016.08.011 |
| 英文摘要 | Using a data set of 2.93 fb(-1) taken at a center-of-mass energy of root s = 3.773 GeV with the BESIII detector at the BEPCII collider, we measure the process e(+) e(-) -> J/psi gamma -> mu(+)mu(-)gamma and determine the product of the branching fraction and the electronic width B-mu mu . Gamma(ee) = (333.4 +/- 2.5(stat) +/- 4.4(sys)) eV. Using the earlier-published BESIII result for B-mu mu = (5.973 +/- 0.007(stat) +/- 0.037(sys))%, we derive the J/psi electronic width Gamma(ee) = (5.58 +/- 0.05(stat) +/- 0.08(sys)) keV. (C) 2016 The Author(s). Published by Elsevier B.V. |
| 语种 | 英语 |
| WOS记录号 | WOS:000384469900016 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/260969]  |
| 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 leptonic decay width of J/psi using initial state radiation[J]. PHYSICS LETTERS B,2016,761:98. |
| APA | BESIII Collaboration.(2016).Measurement of the leptonic decay width of J/psi using initial state radiation.PHYSICS LETTERS B,761,98. |
| MLA | BESIII Collaboration."Measurement of the leptonic decay width of J/psi using initial state radiation".PHYSICS LETTERS B 761(2016):98. |
入库方式： OAI收割
来源：高能物理研究所
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