标题： 宇宙射线与MATHUSLA探测器的搜索 显示英文标题

标题： Cosmic-ray searches with the MATHUSLA detector

摘要： 所提出的MATHUSLA探测器作为研究宇宙射线物理的工具，通过测量广延大气簇射的性能进行了介绍。 MATHUSLA探测器设计用于观察和研究在CERN的HL-LHC数据采集期间，CMS探测器质子-质子相互作用点产生的长寿命粒子的衰变。 所提出的MATHUSLA探测器将由许多层长闪烁条组成，这些条无法测量每根条上的多个击中，并且在多个击中情况下无法正确报告击中坐标。 这项研究表明，添加一层具有模拟和数字读出的RPC探测器显著增强了MATHUSLA测量空气簇射前沿带电粒子局部密度和到达时间的能力。 我们讨论了所提出的MATHUSLA探测器配备额外的RPC探测器层可以解决的宇宙射线物理中的开放问题，并通过与其他测量PeV能量范围宇宙射线的空气簇射设施进行比较来总结。 显示英文摘要

摘要： The performance of the proposed MATHUSLA detector as an instrument for studying the physics of cosmic rays by measuring extensive air showers is presented. The MATHUSLA detector is designed to observe and study the decay of long-lived particles produced at the pp interaction point of the CMS detector at CERN during the HL-LHC data-taking period. The proposed MATHUSLA detector will be composed of many layers of long scintillating bars that cannot measure more than one hit per bar and correctly report the hit coordinate in case of multiple hits. This study shows that adding a layer of RPC detectors with both analogue and digital readout significantly enhances the capabilities of MATHUSLA to measure the local densities and arrival times of charged particles at the front of air showers. We discuss open issues in cosmic-ray physics that the proposed MATHUSLA detector with an additional layer of RPC detectors could address and conclude by comparing with other air-shower facilities that measure cosmic rays in the PeV energy range.