Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run
文献类型：期刊论文
| 作者 | ATLAS collaboration |
| 刊名 | JOURNAL OF INSTRUMENTATION
 |
| 出版日期 | 2013 |
| 卷号 | 8 |
| 关键词 | LIQUID ARGON CALORIMETER LHC |
| 通讯作者 | Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany. |
| 英文摘要 | This paper presents a summary of beam-induced backgrounds observed in the ATLAS detector and discusses methods to tag and remove background contaminated events in data. Trigger-rate based monitoring of beam-related backgrounds is presented. The correlations of backgrounds with machine conditions, such as residual pressure in the beam-pipe, are discussed. Results from dedicated beam-background simulations are shown, and their qualitative agreement with data is evaluated. Data taken during the passage of unpaired, i.e. non-colliding, proton bunches is used to obtain background-enriched data samples. These are used to identify characteristic features of beam-induced backgrounds, which then are exploited to develop dedicated background tagging tools. These tools, based on observables in the Pixel detector, the muon spectrometer and the calorimeters, are described in detail and their efficiencies are evaluated. Finally an example of an application of these techniques to a monojet analysis is given, which demonstrates the importance of such event cleaning techniques for some new physics searches. |
| 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:000322572900015 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213572]  |
| 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. Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run[J]. JOURNAL OF INSTRUMENTATION,2013,8. |
| APA | ATLAS collaboration.(2013).Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run.JOURNAL OF INSTRUMENTATION,8. |
| MLA | ATLAS collaboration."Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run".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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