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arXiv 1708.09282hep-ex
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LHCb粒子识别的新策略

Novel strategies at LHCb for particle identification

Fabio Ferrari

摘要:

大型强子对撞机(LHC)的LHCb实验正在对风味部门进行高精度测量。粒子识别(PID)探测器的出色性能以及新数据采集技术的开发对于应对LHC运行2带来的日益严峻的挑战至关重要。从运行1到运行2,LHCb粒子识别性能的数据驱动校准方法发生了显著变化,现在直接在LHCb高水平触发器中选择校准样品。数据采集范例的这种变化使得能够收集关于运行1的更大的校准样本,从而获得对系统效应研究有用的低水平检测器信息,同时保持运行1观察到的相同(或改善)PID性能。

英文摘要:

The LHCb experiment at the Large Hadron Collider (LHC) is performing high precision measurements in the flavour sector. An excellent performance of the particle identification (PID) detectors as well as the development of new data taking techniques are of fundamental importance in order to cope with increasingly harder challenges posed by the LHC Run 2. The approach of data-driven calibration of particle identification performance at LHCb has changed significantly from Run 1 to Run 2 and calibration samples are now selected directly in the LHCb high-level trigger. This change of data-taking paradigm enables larger calibration samples with respect to Run 1 to be collected, giving access to low-level detector informations useful for studies of systematic effects, while retaining the same (or improving) the PID performances observed Run 1.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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