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arXiv 1908.08923hep-ph
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通过形状分析探索希格斯玻色子对产生中的反常耦合

Exploring anomalous couplings in Higgs boson pair production through shape analysis

Matteo Capozi, Gudrun Heinrich

摘要:

我们分类形状的希格斯玻色子对不变的质量分布$m_{hh}$,计算在NLO与全顶夸克质量的依赖性,并可视化不同类别的形状与底层的耦合参数空间。我们的研究是基于非线性有效场论框架下的一个与希格斯玻色子玻色子对产生相关的五维参数空间。我们使用两种方法:基于预定义形状类型的分析和基于无监督学习的形状聚类分类。我们发现,我们的方法的基础上无监督学习是能够捕捉形状特征非常好,因此允许更详细的研究异常耦合的影响相比,更传统的方法,以形状分析的$m_{hh}$形状。

英文摘要:

We classify shapes of Higgs boson pair invariant mass distributions $m_{hh}$, calculated at NLO with full top quark mass dependence, and visualise how distinct classes of shapes relate to the underlying coupling parameter space. Our study is based on a five-dimensional parameter space relevant for Higgs boson pair production in a non-linear Effective Field Theory framework. We use two approaches: an analysis based on predefined shape types and a classification into shape clusters based on unsupervised learning. We find that our method based on unsupervised learning is able to capture shape features very well and therefore allows a more detailed study of the impact of anomalous couplings on the $m_{hh}$ shape compared to more conventional approaches to a shape analysis.

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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