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Identification of b-quark jets with the CMS experiment
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | JOURNAL OF INSTRUMENTATION
 |
| 出版日期 | 2013 |
| 卷号 | 8 |
| 通讯作者 | Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
| 英文摘要 | At the Large Hadron Collider, the identification of jets originating from b quarks is important for searches for new physics and for measurements of standard model processes. A variety of algorithms has been developed by CMS to select b-quark jets based on variables such as the impact parameters of charged-particle tracks, the properties of reconstructed decay vertices, and the presence or absence of a lepton, or combinations thereof. The performance of these algorithms has been measured using data from proton-proton collisions at the LHC and compared with expectations based on simulation. The data used in this study were recorded in 2011 at root s = 7TeV for a total integrated luminosity of 5.0 fb(-1). The efficiency for tagging b-quark jets has been measured in events from multijet and t-quark pair production. CMS has achieved a b-jet tagging efficiency of 85% for a light-parton misidentification probability of 10% in multijet events. For analyses requiring higher purity, a misidentification probability of only 1.5% has been achieved, for a 70% b-jet tagging efficiency. |
| 学科主题 | Instruments & Instrumentation |
| 类目[WOS] | Instruments & Instrumentation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317462400020 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213508]  |
| 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. Identification of b-quark jets with the CMS experiment[J]. JOURNAL OF INSTRUMENTATION,2013,8. |
| APA | CMS Collaboration.(2013).Identification of b-quark jets with the CMS experiment.JOURNAL OF INSTRUMENTATION,8. |
| MLA | CMS Collaboration."Identification of b-quark jets with the CMS experiment".JOURNAL OF INSTRUMENTATION 8(2013). |
入库方式： OAI收割
来源：高能物理研究所
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