论文标题
CMS MUON检测器的背景:使用PP碰撞数据的仿真和测量
Background in the CMS muon detectors: simulation and measurements with pp collision data
论文作者
论文摘要
LHC的CMS MUON系统由不同的检测器技术构建。 LHC Run-2期间不同MUON检测器中背景命中率的测量对于评估房间的寿命及其车载电子设备的寿命至关重要,因此对于HL-LHC的系统性能的预期性能。此外,使用仿真对背景进行准确的建模也很重要,因为对2阶段升级的预期辐射背景的估计只能依赖于正在安装新检测器的区域中基于蒙特卡洛的预测。讨论了使用LHC Run-2期间收集的数据以及在CERN高强度Gamma辐照设施GIF ++的目前理解,以及在Fluka和Geant4模拟中提高背景建模的准确性的工作。
The CMS muon system at the LHC is built of different detector technologies. The measurement of the background hit rates in the different muon detectors during the LHC Run-2 is of prime importance for an assessment of the longevity of the chambers and their on-board electronics, and therefore for the expected performance of the system at HL-LHC. Moreover, an accurate modelling of the backgrounds using simulations is also critical, as an estimation of the expected radiation background for the Phase-2 upgrade can only rely on Montecarlo-based predictions in the regions where new detectors are being installed. The present understanding of the backgrounds measured with data collected during the LHC Run-2, as well as at CERN high-intensity gamma irradiation facility, GIF++, is discussed, together with the work made to improve the accuracy of the background modelling in Fluka and GEANT4 simulations.