Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2011 |
| 期号 | 7 |
| 关键词 | COLLIDER DETECTOR EVENTS FERMILAB DECAY |
| 通讯作者 | Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
| 英文摘要 | The t (t) over bar production cross section and top quark mass are measured in proton-proton collisions at root s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb(-1) collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is sigma(tt) - 168 +/- 18 (stat:) +/- 14 (syst:) +/- 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass m(top) is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m(top) = 175.5 +/- 4.6 (stat:) +/- 4: 6 (syst:) GeV/c(2). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000293741400049 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213093]  |
| 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. Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(7). |
| APA | CMS Collaboration.(2011).Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev.JOURNAL OF HIGH ENERGY PHYSICS(7). |
| MLA | CMS Collaboration."Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev".JOURNAL OF HIGH ENERGY PHYSICS .7(2011). |
入库方式： OAI收割
来源：高能物理研究所
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