论文标题
信号区域的结合与Madanalysis中的全面和简化的可能性5
Signal region combination with full and simplified likelihoods in MadAnalysis 5
论文作者
论文摘要
重新解释研究中不相交的信号区域的统计组合使用了分析的更多数据，并提供了比单个信号区域方法更强大的结果。我们介绍了Madanalysis 5中信号区域组合的实现和使用，通过两种方法：使用ATLAS协作提供的JSON-Serialialise格式的PYHF软件包的接口，以及使用CMS协作提供的协方差矩阵的简化似然计算。通过与公共分析数据库进行了4个地图集的官方质量限制和5个CMS分析的官方质量限制相比，Madanalysis 5的官方质量限制进行了比较。目前可获得信号区域组合，以及2.）。
The statistical combination of disjoint signal regions in reinterpretation studies uses more of the data of an analysis and gives more robust results than the single signal region approach. We present the implementation and usage of signal region combination in MadAnalysis 5 through two methods: an interface to the pyhf package making use of statistical models in JSON-serialised format provided by the ATLAS collaboration, and a simplified likelihood calculation making use of covariance matrices provided by the CMS collaboration. The gain in physics reach is demonstrated 1.) by comparison with official mass limits for 4 ATLAS and 5 CMS analyses from the Public Analysis Database of MadAnalysis 5 for which signal region combination is currently available, and 2.) by a case study for an MSSM scenario in which both stops and sbottoms can be produced and have a variety of decays into charginos and neutralinos.
