Dark photon search in the mass range between 1.5 and 3.4 GeV/c
文献类型：期刊论文
| 作者 | BESIII Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2017 |
| 卷号 | 774页码:252-257 |
| 关键词 | Dark photon search Initial state radiation BESIII |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2017.09.067 |
| 文献子类 | Article |
| 英文摘要 | Using a data set of 2.93 fb taken at a center-of-mass energy root s = 3.773 GeV with the BESIII detector at the BEPCII collider, we perform a search for an extra U(1) gauge boson, also denoted as a dark photon. We examine the initial state radiation reactions e(+)e(-) -> e(+)e(-) gamma(ISR) and e(+)e(-) -> mu(+)mu(-) gamma(ISR) for this search, where the dark photon would appear as an enhancement in the invariant mass distribution of the leptonic pairs. We observe no obvious enhancement in the mass range between 1.5 and 3.4 GeV/c(2) and set a 90% confidence level upper limit on the mixing strength of the dark photon and the Standard Model photon. We obtain a competitive limit in the tested mass range. (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 | ELECTRON-BEAM-DUMP ; KLOE EXPERIMENT ; VECTOR BOSON ; FLAVOR FACTORIES ; CROSS-SECTION ; U-GAMMA ; E(+)E(-) ; DECAYS ; PI(0) ; LIMIT |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000414973200037 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284555]  |
| 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. Dark photon search in the mass range between 1.5 and 3.4 GeV/c[J]. PHYSICS LETTERS B,2017,774:252-257. |
| APA | BESIII Collaboration.(2017).Dark photon search in the mass range between 1.5 and 3.4 GeV/c.PHYSICS LETTERS B,774,252-257. |
| MLA | BESIII Collaboration."Dark photon search in the mass range between 1.5 and 3.4 GeV/c".PHYSICS LETTERS B 774(2017):252-257. |
入库方式： OAI收割
来源：高能物理研究所
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