Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
文献类型：期刊论文
| 作者 | ATLAS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2018 |
| 卷号 | 784页码:173-191 |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.07.035 |
| 文献子类 | Article |
| 英文摘要 | The observation of Higgs boson production in association with a top quark pair (t (t) over barH), based on the analysis of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider, is presented. Using data corresponding to integrated luminosities of up to 79.8 fb(-1), and considering Higgs boson decays into b (b) over bar, WW*, tau(+)tau(-), gamma gamma, and ZZ*, the observed significance is 5.8 standard deviations, compared to an expectation of 4.9 standard deviations. Combined with the t (t) over barH searches using a dataset corresponding to integrated luminosities of 4.5 fb(-1) at 7 TeV and 20.3 fb(-1) at 8 TeV, the observed (expected) significance is 6.3 (5.1) standard deviations. Assuming Standard Model branching fractions, the total t (t) over barH production cross section at 13 TeV is measured to be 670 +/- 90(stat.)(-100)(+110)(syst.) fb, in agreement with the Standard Model prediction. (c) 2018 The Author(s). Published by Elsevier B.V. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | SEARCH |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000445781600029 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286373]  |
| 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 | ATLAS Collaboration. Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector[J]. PHYSICS LETTERS B,2018,784:173-191. |
| APA | ATLAS Collaboration.(2018).Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector.PHYSICS LETTERS B,784,173-191. |
| MLA | ATLAS Collaboration."Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector".PHYSICS LETTERS B 784(2018):173-191. |
入库方式： OAI收割
来源：高能物理研究所
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