标准模型的单重标量和2 HDM扩展：CP破坏和来自$(g-2)_μ$和$e$ EDM的约束
Singlet scalar and 2HDM extensions of the Standard Model: CP-violation and constraints from $(g-2)_μ$ and $e$EDM
摘要：
我们研究了标准模型流行的标量扩展，即单重扩展，2-Higgs双峰模型（2 HDM）和单重标量扩展。我们专注于添加标量的贡献的μ子的异常磁矩，$(g-2)_μ$在CP破坏的存在下，和电偶极矩的电子（$e$ EDM）在这些模型中。在没有CP破坏的情况下，CP偶标量和CP奇标量对μ子的反常磁矩的贡献符号相反，因此这些模型通常需要非常轻的标量来解释在$(g-2)_μ$中观察到的差异。我们研究了CP破坏对μ子反常磁矩的影响及其与$e$ EDM约束的相容性。我们表明，鉴于目前的状态的全球范围内的一套约束应用于所有值的$\cotβ$，在CP违反标量扩展，不存在可行的参数空间，既符合$a_μ$和$e$ EDM界限。
英文摘要：
We study popular scalar extensions of the Standard Model, namely the singlet extension, the 2-Higgs doublet model (2HDM) and its extension by a singlet scalar. We focus on the contributions of the added scalars to the anomalous magnetic moment of the muon, $(g-2)_μ$ in the presence of CP-violation, and the electric dipole moment of the electron ($e$EDM) in these models. In the absence of CP-violation, CP-even and CP-odd scalars contribute with an opposite sign to the anomalous magnetic moment of the muon and as a result these models generally require very light scalars to explain the observed discrepancy in $(g-2)_μ$. We study the effect of CP-violation on the anomalous magnetic moment of the muon and its compatibility with the $e$EDM constraints. We show that given the current status of the global set of constraints applied on all values of $\cotβ$, in the CP-violating scalar extensions, there exist no viable parameter space in agreement with both $a_μ$ and $e$EDM bounds.
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