论文标题
用Lilith-2从HIGGS测量中限制新物理学
Constraining new physics from Higgs measurements with Lilith-2
论文作者
论文摘要
莉莉丝（Lilith）是一个公共Python库，用于从HIGGS信号强度测量中限制新物理学。 Lilith的2.0版配备了广泛的XML数据库，其中包括Atlas和CMS运行2 36/Fb的HIGGS结果，此外，Run 1结果。代码和数据库都从Lilith-1.1中使用的普通高斯近似延伸到使用可变的高斯和泊松可能性。此外，Lilith-2可以利用任意维度的相关矩阵。我们将报告这些新颖性和正在进行的发展。通过详细验证实施的实验结果，将证明如何处理相关性和不确定性的重要性。此外，我们展示了减少Higgs耦合，I型和II型2HDM的全局拟合的影响，以及无形的Higgs衰变。该程序在GitHub上公开可用，可用于限制广泛的新物理场景。
Lilith is a public Python library for constraining new physics from Higgs signal strength measurements. Version 2.0 of Lilith comes with an extensive XML database which includes the ATLAS and CMS Run 2 Higgs results for 36/fb, in addition the the Run 1 results. Both the code and the database were extended from the ordinary Gaussian approximation employed in Lilith-1.1 to using variable Gaussian and Poisson likelihoods. Moreover, Lilith-2 can make use of correlation matrices of arbitrary dimension. We will report on these novelties and ongoing developments. The importance of how correlations and uncertainties are treated will be demonstrated by means of detailed validations of the implemented experimental results. Moreover, we show the effects for global fits of reduced Higgs couplings, 2HDMs of Type I and Type II, and invisible Higgs decays. The program is publicly available on GitHub and can be used to constrain a wide class of new physics scenarios.
