Light-quark and gluon jet discrimination in collisions at root s=7 TeV with the ATLAS detector
文献类型：期刊论文
| 作者 | ATLAS collaboration |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2014 |
| 卷号 | 74期号:8 |
| 关键词 | Z-DECAYS MULTIPLICITY |
| 通讯作者 | Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France. |
| 英文摘要 | A likelihood-based discriminant for the identification of quark- and gluon-initiated jets is built and validated using 4.7 fb of proton-proton collision data at collected with the ATLAS detector at the LHC. Data samples with enriched quark or gluon content are used in the construction and validation of templates of jet properties that are the input to the likelihood-based discriminant. The discriminating power of the jet tagger is established in both data and Monte Carlo samples within a systematic uncertainty of 10-20 %. In data, light-quark jets can be tagged with an efficiency of while achieving a gluon-jet mis-tag rate of in a range between and for jets in the acceptance of the tracker. The rejection of gluon-jets found in the data is significantly below what is attainable using a Pythia 6 Monte Carlo simulation, where gluon-jet mis-tag rates of 10 % can be reached for a 50 % selection efficiency of light-quark jets using the same jet properties. |
| 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:000340948500001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213760]  |
| 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. Light-quark and gluon jet discrimination in collisions at root s=7 TeV with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(8). |
| APA | ATLAS collaboration.(2014).Light-quark and gluon jet discrimination in collisions at root s=7 TeV with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,74(8). |
| MLA | ATLAS collaboration."Light-quark and gluon jet discrimination in collisions at root s=7 TeV with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 74.8(2014). |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。