Associative Memory Pattern Matching for the L1 Track Trigger of CMS at the HL-LHC
Associative Memory Pattern Matching for the L1 Track Trigger of CMS at the HL-LHC
复制标题
HL-LHC 上 CMS 的 L1 轨道触发器的关联内存模式匹配
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
G. Fedi
中科院分区：
文献类型：
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作者：
G. Fedi
高亮度LHC（HL-LHC）将提供高达5 × 10 34 cm −2 s −1的亮度，平均每个束团交叉约140次重叠质子-质子碰撞。这些极端的连环相撞条件对触发系统提出了严格的要求，以便能够科普由此产生的事件发生率。HL-LHC CMS升级的一个关键组成部分是一个轨道触发系统，能够识别已经在第一级触发的横向动量超过2 GeV/c的轨道。在这里，我们提出了一个原型系统的实施的状态，基于关联存储器定制ASIC和现代现场可编程门阵列（FPGA）设备的组合，其目的是展示基于最先进技术的概念，并指导必要的研发工作的最终系统。
The High Luminosity LHC (HL-LHC) will deliver a luminosity of up to 5 × 10 34 cm −2 s −1 , with an average of about 140 overlapping proton-proton collisions per bunch crossing. These extreme pileup conditions place stringent requirements on the trigger system to be able to cope with the resulting event rates. A key component of the CMS upgrade for HL-LHC is a track trigger system, able to identify tracks with transverse momenta above 2 GeV/c already at the first-level trigger. We present here the status of the implementation of a prototype system, based on the combination of Associative Memory custom ASIC and modern Field Programmable Gate Array (FPGA) devices, with the purpose to demonstrate the concept based on state-of-the-art technologies, and to direct the efforts of the necessary R&D toward a final system.