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The CMS trigger system
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | JOURNAL OF INSTRUMENTATION
 |
| 出版日期 | 2017 |
| 卷号 | 12页码:10120 |
| 关键词 | Trigger concepts and systems (hardware and software) Trigger detectors Data acquisition circuits |
| ISSN号 | 1748-0221 |
| DOI | 10.1088/1748-0221/12/01/P01020 |
| 文献子类 | Article |
| 英文摘要 | This paper describes the CMS trigger system and its performance during Run 1 of the LHC. The trigger system consists of two levels designed to select events of potential physics interest from a GHz (MHz) interaction rate of proton-proton (heavy ion) collisions. The first level of the trigger is implemented in hardware, and selects events containing detector signals consistent with an electron, photon, muon, tau lepton, jet, or missing transverse energy. A programmable menu of up to 128 object-based algorithms is used to select events for subsequent processing. The trigger thresholds are adjusted to the LHC instantaneous luminosity during data taking in order to restrict the output rate to 100 kHz, the upper limit imposed by the CMS readout electronics. The second level, implemented in software, further refines the purity of the output stream, selecting an average rate of 400 Hz for offline event storage. The objectives, strategy and performance of the trigger system during the LHC Run 1 are described. |
| WOS关键词 | MUON SYSTEM ; CALORIMETER ; PERFORMANCE ; DETECTOR ; TRACK ; LHC |
| WOS研究方向 | Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000395769600020 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284316]  |
| 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. The CMS trigger system[J]. JOURNAL OF INSTRUMENTATION,2017,12:10120. |
| APA | CMS Collaboration.(2017).The CMS trigger system.JOURNAL OF INSTRUMENTATION,12,10120. |
| MLA | CMS Collaboration."The CMS trigger system".JOURNAL OF INSTRUMENTATION 12(2017):10120. |
入库方式： OAI收割
来源：高能物理研究所
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