Cross section measurement of t-channel single top quark production in pp collisions at
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2017 |
| 卷号 | 772页码:752-776 |
| 关键词 | CMS Physics Top quark |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2017.07.047 |
| 文献子类 | Article |
| 英文摘要 | The cross section for the production of single top quarks in the t channel is measured in proton- proton collisions at 13TeV with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of 2.2fb(-1). The event selection requires one muon and two jets where one of the jets is identified as originating from a bottom quark. Several kinematic variables are then combined into a multivariate discriminator to distinguish signal from background events. A fit to the distribution of the discriminating variable yields a total cross section of 238 +/- 13 (stat)+/- 29(syst) pband a ratio of top quark and top antiquark production of Rt-ch.= 1.81 +/- 0.18 (stat)+/- 0.15(syst). From the total cross section the absolute value of the CKM matrix element Vtbis calculated to be 1.05 +/- 0.07 (exp)+/- 0.02(theo). All results are in agreement with the standard model predictions. (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 | PARTON DISTRIBUTIONS ; LHC |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000411369700108 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284337]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 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 | CMS Collaboration. Cross section measurement of t-channel single top quark production in pp collisions at[J]. PHYSICS LETTERS B,2017,772:752-776. |
| APA | CMS Collaboration.(2017).Cross section measurement of t-channel single top quark production in pp collisions at.PHYSICS LETTERS B,772,752-776. |
| MLA | CMS Collaboration."Cross section measurement of t-channel single top quark production in pp collisions at".PHYSICS LETTERS B 772(2017):752-776. |
入库方式： OAI收割
来源：高能物理研究所
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