标题： μ子信号电荷在AugerPrime地下μ子探测器中的研究 显示英文标题

标题： Muon Signal Charge in the Underground Muon Detector of AugerPrime

摘要： 地下缪子探测器是皮埃尔·奥热观测站的一个组成部分，它具有量热检测模式，该模式根据信号电荷测量来估计缪子的数量。 这一贡献提供了校准程序的概述，回顾了之前发表的策略，并识别出用于估计垂直缪子平均电荷的触发器引入的偏差。 我们证明，校准地下探测器需要仔细考虑穿透粒子在物质中的相互作用。 在基于塑料闪烁体的设备中，能量沉积以及因此记录的电荷，会显著受到缪子穿过介质时周围地面产生的次级电子的影响。 为了减轻这种影响，我们提出了一种新的校准策略，以确保无偏的缪子估计器。 该方法已应用于2019年至2024年收集的数据。 显示英文摘要

摘要： The Underground Muon Detector of the Pierre Auger Observatory features a calorimetric detection mode that estimates the number of muons based on signal charge measurements. This contribution provides an overview of the calibration procedure, revisiting the previously published strategy and identifying a bias introduced by the triggers used to estimate the mean charge deposited by a vertical muon. We demonstrate that calibrating underground detectors requires careful consideration of the interactions of penetrating particles through matter. In devices based on plastic scintillators, energy deposition, and thus the recorded charge, is significantly affected by knock-on electron production in the surrounding ground as muons traverse the medium. To mitigate this effect, we propose a new calibration strategy that ensures an unbiased muon estimator. This approach is applied to data collected from 2019 to 2024.