论文标题
Mathusla测试架
The MATHUSLA Test Stand
论文作者
论文摘要
测量了LHC $ pp $碰撞的MUON碰撞率达到地面交互点以上的表面，并将其与$ W $和$ w $和$ Z $ BOSON的衰减的预期利率以及$ b $ - $ b $ - 和$ c $ QUARK JETS进行了比较。此外，在LHC中没有光束循环的时期收集的数据提供了对宇宙射线非弹性反向散射的背景的测量，该背景与模拟预测相比。数据记录在2018年的2.5 $ \ times $ 2.5 $ \ times $ 6.5〜 $ \ $ \ rm {m}^3 $ active Mathusla测试架检测器探测器单元，由两个闪烁机组成，一个在顶部，一个在底部，一个在底部，将触发器的6层分组为三层，分组为三$（x $）。使用了选择向上轨道和向下轨道的触发器。
The rate of muons from LHC $pp$ collisions reaching the surface above the ATLAS interaction point is measured and compared with expected rates from decays of $W$ and $Z$ bosons and $b$- and $c$-quark jets. In addition, data collected during periods without beams circulating in the LHC provide a measurement of the background from cosmic ray inelastic backscattering that is compared to simulation predictions. Data were recorded during 2018 in a 2.5 $\times$ 2.5 $\times$ 6.5~$\rm{m}^3$ active volume MATHUSLA test stand detector unit consisting of two scintillator planes, one at the top and one at the bottom, which defined the trigger, and six layers of RPCs between them, grouped into three $(x,y)$-measuring layers separated by 1.74 m from each other. Triggers selecting both upward-going tracks and downward-going tracks were used.
