A comprehensive real-time analysis model at the LHCb experiment
A comprehensive real-time analysis model at the LHCb experiment
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DOI：
10.1088/1748-0221/14/04/p04006
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发表时间：
2019-03
影响因子：
1.3
通讯作者：
R. Aaij;S. Benson;S. Neubert;E. Govorkova;O. Lupton;M. Vesterinen;R. Matev;C. Fitzpatrick;H. Schreiner;A. Pearce;M. Cian;A. Dziurda;S. Stahl
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文献类型：
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作者：
R. Aaij;S. Benson;S. Neubert;E. Govorkova;O. Lupton;M. Vesterinen;R. Matev;C. Fitzpatrick;H. Schreiner;A. Pearce;M. Cian;A. Dziurda;S. Stahl
针对高能物理实验提出了一种改进的实时数据处理策略，并介绍了其在大型强子对撞机底夸克实验（LHCb）中的应用。简化的事件模型不仅允许像以前那样保存触发触发信号的候选事件，还允许保存事件中任意一组其他重建对象或原始对象。与为每个触发保存完整原始探测器数据的传统模型相比，在给定输出数据带宽的情况下，这允许更高的触发率，同时适应包容性触发并保留数据挖掘能力。讨论了该模型在物理研究范围上的增益以及在计算资源方面的节省，以及在大型强子对撞机第三次运行中更广泛应用它的前景。
An evolved real-time data processing strategy is proposed for high-energy physics experiments, and its implementation at the LHCb experiment is presented. The reduced event model allows not only the signal candidate firing the trigger to be persisted, as previously available, but also an arbitrary set of other reconstructed or raw objects from the event. This allows for higher trigger rates for a given output data bandwidth, when compared to the traditional model of saving the full raw detector data for each trigger, whilst accommodating inclusive triggers and preserving data mining capabilities. The gains in physics reach and savings in computing resources already made possible by the model are discussed, along with the prospects of employing it more widely for Run 3 of the Large Hadron Collider.