Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC
Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC
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DOI：
10.1088/1748-0221/14/04/p04013
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发表时间：
2019-04-01
影响因子：
1.3
通讯作者：
Zhou, Y.
中科院分区：
文献类型：
--
作者：
Aaij, R.;Akar, S.;Zhou, Y.
LHCb合作重新设计了其触发器，使完全离线探测器重建能够实时执行。再加上探测器的实时对准和校准，以及使实时处理过程中产生的高级物理对象持久存在的软件基础设施，这种重新设计使实时分析在第二次运行期间得以广泛部署。我们描述了第二次运行触发和实时重建的设计，并对LHCB物理计划的一个代表性样本进行了数据驱动的性能测量。
The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the high-level physics objects produced during real-time processing, this redesign enabled the widespread deployment of real-time analysis during Run 2. We describe the design of the Run 2 trigger and real-time reconstruction, and present data-driven performance measurements for a representative sample of LHCb's physics programme.