论文标题
CMS 2阶段升级的高级触发器
The High-Level Trigger for the CMS Phase-2 Upgrade
论文作者
论文摘要
高亮度LHC（HL-LHC）将在高能量物理学中引入一个新时代。 HL-LHC实验条件需要瞬时亮度$ 7.5 \ times 10^{34} $ cm $ $^{ - 2} $ s $ s $^{ - 1} $，每束交叉（堆积）最多200次同时碰撞。为了应对这些条件，CMS检测器将在所谓的2期升级中进行一系列改进。特别是，数据采集和高级触发器（DAQ-HLT）的升级将必须解决更高的事件率和更复杂的事件。在本文中，我们将讨论HLT升级的各个方面，详细介绍了在线重建的开发，简化HLT菜单的构建，表征和计时/费率测量，HLT中异质体系结构的作用以及工作计划以及工作计划和阶段-2阶段2。
The High-Luminosity LHC (HL-LHC) will usher in a new era in high-energy physics. The HL-LHC experimental conditions entail an instantaneous luminosity of up to $7.5 \times 10^{34}$ cm$^{-2}$ s$^{-1}$ and up to 200 simultaneous collisions per bunch crossing (pileup). To cope with those conditions, the CMS detector will undergo a series of improvements, in what is known as the Phase-2 upgrade. In particular, the upgrade of the Data Acquisition and of the High-Level Trigger (DAQ-HLT) will have to address a much higher event rate and more complex events. In this paper, we will discuss the aspects of the HLT upgrade, detailing the development of the online reconstruction, the construction, characterisation and timing/rate measurement of a simplified HLT menu, the role of heterogeneous architectures in the HLT and the plan of work and milestones until the beginning of Phase-2.
