皮埃尔·奥热观测台表面探测器阵列的触发与孔径
天体物理仪器与方法
2014-07-03 v1
摘要
皮埃尔·奥热观测台（Pierre Auger Observatory）的表面探测器阵列由 1600 个水切伦科夫探测器组成，用于研究由超高能宇宙射线产生的广延大气簇射（EAS）。我们描述了触发层级结构，从在大量背景（主要是随机单宇宙射线μ子）中于单个探测器层面识别候选簇射，到选择真实事件并剔除随机符合。此类触发使得表面探测器阵列能够完全有效地探测能量高于 eV 的 EAS，适用于 0 至 60 之间的所有天顶角，且不受撞击点位置和初级粒子质量的影响。在这些能量和角度范围内，表面阵列的曝光量可以纯粹基于几何接受度来确定。
引用
@article{arxiv.1111.6764,
title = {Trigger and Aperture of the Surface Detector Array of the Pierre Auger Observatory},
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journal= {arXiv preprint arXiv:1111.6764},
year = {2014}
}
备注
29 pages, 12 figures