泊松分布事件的符合检验
A Coincidence Null Test for Poisson-Distributed Events
摘要：
当用多个传感器观测瞬态事件时，通常需要确定重合事件的重要性。我们推导出一个通用的零测试的任意数量的传感器的原型检测问题的独立泊松分布事件的引力波探测器，如LIGO和处女座的动机。在这些探测器中，瞬态事件可以由记录干涉信号和周围物理环境的无数通道见证。我们将我们的零检验应用于一组广泛的模拟引力波事件以及一个真实的引力波探测，以确定哪些辅助通道见证和不见证真实的引力波，因此在构建否决权时使用哪些是安全的。我们还描述了我们的方法如何可以用来研究检测器的文物及其来源，以及量化的统计独立性的候选GW信号从辅助通道中观察到的噪声文物。
英文摘要：
When transient events are observed with multiple sensors, it is often necessary to establish the significance of coincident events. We derive a universal null test for an arbitrary number of sensors motivated by the archetypal detection problem for independent Poisson-distributed events in gravitational-wave detectors such as LIGO and Virgo. In these detectors, transient events may be witnessed by myriad channels that record interferometric signals and the surrounding physical environment. We apply our null test to a broad set of simulated gravitational-wave events as well as to a real gravitational-wave detection to determine which auxiliary channels do and do not witness real gravitational waves, and therefore which are safe to use when constructing vetoes. We also describe how our approach can be used to study detector artifacts and their origin, as well as to quantify the statistical independence of candidate GW signals from noise artifacts observed in auxiliary channels.
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