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2-Higgs-Doublet模型的规范无关重整化

Gauge-independent Renormalization of the 2-Higgs-Doublet Model

Marcel Krause, Robin Lorenz, Margarete Muhlleitner, Rui Santos, Hanna Ziesche

摘要:

2-Higgs-Doublet模型(2 HDM)属于标准模型(SM)Higgs扇区的最简单的扩展,符合理论和实验的限制。为了能够正确地研究希格斯玻色子的实验数据,并在长期内区分SM之外的可能模型,必须在理论方面提供对希格斯玻色子玻色子观测值的精确预测。这需要包括更高阶的校正。在这项工作中,我们详细调查的重正化的2 HDM,计算高阶修正的先决条件。我们特别注意的混合角的重整化$α$和$β$,对角化的希格斯质量矩阵,并进入所有希格斯观测。本文研究了各种重整化方案对样本过程$H^\pm \to W^\pm h/H$和$H \to ZZ$的次前导阶修正的影响。基于我们的发现,我们将提出一个重整化方案,这是在同一时间的过程无关,规范无关和数值稳定。

英文摘要:

The 2-Higgs-Doublet Model (2HDM) belongs to the simplest extensions of the Standard Model (SM) Higgs sector that are in accordance with theoretical and experimental constraints. In order to be able to properly investigate the experimental Higgs data and, in the long term to distinguish between possible models beyond the SM, precise predictions for the Higgs boson observables have to be made available on the theory side. This requires the inclusion of the higher order corrections. In this work, we investigate in detail the renormalization of the 2HDM, a pre-requisite for the computation of higher order corrections. We pay particular attention to the renormalization of the mixing angles $α$ and $β$, which diagonalize the Higgs mass matrices and which enter all Higgs observables. The implications of various renormalization schemes in next-to-leading order corrections to the sample processes $H^\pm \to W^\pm h/H$ and $H \to ZZ$ are investigated. Based on our findings, we will present a renormalization scheme that is at the same time process independent, gauge independent and numerically stable.

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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