arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.11408hep-ph
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用Lilith-2从Higgs测量中约束新物理

Constraining new physics from Higgs measurements with Lilith-2

Marius Bertrand, Sabine Kraml, Tran Quang Loc, Dao Thi Nhung, Le Duc Ninh

摘要:

Lilith是一个公共的Python库,用于限制来自希格斯信号强度测量的新物理。Lilith 2.0版附带了一个广泛的XML数据库,其中包括36/fb的ATLAS和CMS运行2 Higgs结果,以及运行1结果。代码和数据库都从Lilith-1.1中使用的普通高斯近似扩展到使用可变高斯和泊松似然。此外,Lilith-2可以利用任意维数的相关矩阵。我们将报告这些新事物和正在进行的发展。如何处理相关性和不确定性的重要性将通过实施的实验结果的详细验证来证明。此外,我们显示的影响,全球适合减少希格斯耦合,2 HDMs的I型和II型,和无形的希格斯衰变。该程序在GitHub上公开提供,可用于约束广泛的新物理场景。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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