Search for Correlated High Energy Cosmic Ray Events with CHICOS
Search for Correlated High Energy Cosmic Ray Events with CHICOS
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使用 CHICOS 搜索相关的高能宇宙射线事件
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
G. Yodh
中科院分区：
文献类型：
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作者：
B. Carlson;E. Brobeck;C. Jillings;M. B. Larson;T. Lynn;R. Mckeown;J. Hill;B. Falkowski;R. Seki;J. Sepikas;G. Yodh
我们展示了对加州高中宇宙射线观测站 (CHICOS) 阵列收集的高能宇宙射线数据（初级 E > 10^14 eV）中时间相关性的搜索结果。研究了分布在 400 km^2 区域内 60 个探测器站点的数据，以寻找相距超过 1 km、重合时间从 1 µs 到 1 s 不等的孤立事件的证据。除了在小于 10 µs 的重合时间观察到 2.9σ 过量之外，结果与不存在过量重合的情况一致。我们将重合概率的上限报告为重合时间的函数。
We present the results of a search for time correlations in high energy cosmic ray data (primary E > 10^14 eV) collected by the California HIgh school Cosmic ray ObServatory (CHICOS) array. Data from 60 detector sites spread over an area of 400 km^2 were studied for evidence of isolated events separated by more than 1 km with coincidence times ranging from 1 µs up to 1 s. The results are consistent with the absence of excess coincidences except for a 2.9σ excess observed for coincidence times less than 10 µs. We report upper limits for the coincidence probability as a function of coincidence time.