The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2
The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2
复制标题
LHC 运行 2 期间，ATLAS 内部探测器在 13 TeV 的 pp 碰撞中触发性能
DOI：
10.1140/epjc/s10052-021-09920-0
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Aad G
中科院分区：
文献类型：
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作者：
Aad G
讨论了2016-2018年大型强子对撞机ATLAS实验数据采集期间高电平触发器的内探测器触发器的设计和性能。在2016年，2017年和2018年，ATLAS探测器分别记录了35.6fb-1，46.9fb-1和60.6fb-1的质子-质子碰撞数据，质心能量为13 TeV。为了处理13 TeV碰撞所预期的每个束团交叉的非常高的相互作用多重性，在2013年至2015年大型强子对撞机长期关闭期间，重新设计了内部探测器触发器。概述了这些发展，并讨论了触发器中的μ子，电子，τ和b-喷气签名的跟踪性能。具有这些极端相互作用多重性的内部探测器触发器的高性能表明，内部探测器跟踪如何继续处于触发器性能的核心，并且对于启用ATLAS物理程序至关重要。
The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016–2018 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded 35.6fb-1, 46.9fb-1, and 60.6fb-1 respectively of proton–proton collision data at a centre-of-mass energy of 13 TeV. In order to deal with the very high interaction multiplicities per bunch crossing expected with the 13 TeV collisions the inner detector trigger was redesigned during the long shutdown of the Large Hadron Collider from 2013 until 2015. An overview of these developments is provided and the performance of the tracking in the trigger for the muon, electron, tau and b-jet signatures is discussed. The high performance of the inner detector trigger with these extreme interaction multiplicities demonstrates how the inner detector tracking continues to lie at the heart of the trigger performance and is essential in enabling the ATLAS physics programme.