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arXiv 2108.01094hep-ph
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从模型到SMEFT再返回?

From Models to SMEFT and Back?

Ilaria Brivio, Sebastian Bruggisser, Emma Geoffray, Wolfgang Kilian, Michael Krämer, Michel Luchmann, Tilman Plehn, Benjamin Summ

摘要:

我们提出了一个全球性的分析希格斯和弱电部门,在SMEFT框架和匹配的UV完成。作为紫外模型,我们使用的三重态扩展的电弱规范部门。匹配在一个循环中执行,采用函数方法。在SFITTER分析中,我们特别注意由匹配引起的理论不确定性。我们的研究结果突出了SMEFT和模型特定的分析之间的互补性。

英文摘要:

We present a global analysis of the Higgs and electroweak sector, in the SMEFT framework and matched to a UV-completion. As the UV-model we use the triplet extension of the electroweak gauge sector. The matching is performed at one loop, employing functional methods. In the SFitter analysis, we pay particular attention to theory uncertainties arising from the matching. Our results highlight the complementarity between SMEFT and model-specific analyses.

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