论文标题
基于Atlas硬件的端盖MUON触发器以未来升级
ATLAS hardware-based Endcap Muon Trigger for future upgrades
论文作者
论文摘要
LHC预计将在2022年至2024年将其3次跑步提高到14 tev。计划从2022年到2024年。进行3次运行后，计划进行高亮度LHC（HL-LHC）计划的升级，并且该操作将于2027年开始，并在2027年开始，将瞬时性速度提高至5.0-7.5倍-7.5倍-7.5倍 - 次数为5.0倍。计划对ATLAS触发系统进行连续升级，以应对高事件率并保持物理接受。在运行3前的长时间关闭期间，将安装新的检测器以提高触发性能。从运行3引入了新的触发逻辑，结合了位于磁场外的检测器的信息，并在磁场内安装了新的检测器，以降低触发速率。为了处理来自各种检测器的数据，已经开发了一个新的触发处理器板并提出了设计。在HL-LHC的升级期间，计划升级基于第一级硬件的零件的触发和读数系统。全粒状信息将被转移到触发处理器板上，该委员会可以在基于硬件的系统中进行更多的离线轨道重建。为了处理全粒度信息并执行基于硬件的轨道重建，触发处理器板将实施一个FPGA，其中包含数百对收发器和庞大的内存资源。还将介绍基于硬件的端盖MUON触发器的预期性能和HL-LHC中的预期性能。
The LHC is expected to increase its center-of-mass energy from 13 TeV to 14 TeV for Run 3 scheduled from 2022 to 2024. After Run 3, upgrades for the High-Luminosity-LHC (HL-LHC) programme are planned and the operation will start in 2027, increasing the instantaneous luminosity to 5.0 -- 7.5 times its nominal luminosity. Continuous upgrades of the ATLAS trigger system are planned to cope with the high event rate and to keep the physics acceptance. During the long shutdown period before Run 3, new detectors will be installed to improve the trigger performance. New trigger logic, combining information from detectors located outside of the magnetic field and new detectors installed inside the magnetic field, are introduced from Run 3 to reduce the trigger rate. In order to handle data from the various detectors, a new trigger processor board has been developed and the design is presented. During the upgrade for HL-LHC, the trigger and readout systems of the first level hardware-based part are planned to be upgraded. Full-granularity information will be transferred to the trigger processor board which enables more off-line like track reconstruction in the hardware-based system. To handle the full-granularity information and perform the hardware-based track reconstruction, the trigger processor board will implement an FPGA with hundreds of pairs of transceivers and huge memory resources. Expected performance for the hardware-based endcap muon trigger in Run 3 and HL-LHC will also be presented.
