论文标题
CP侵入三吉格斯 - doublet型号的暗物质与$ S_3 $对称性
Dark matter in a CP-violating three-Higgs-doublet model with $S_3$ symmetry
论文作者
论文摘要
尽管粒子物理学的标准模型取得了成功，但仍有一些理论预测尚未在实验上完全确定，还有一些无法在其理论框架内拟合的实验观察结果，因此需要超出标准模型的物理学。其中之一是一种假设的非昏暗形式 - 暗物质。具有扩展标量电动扇形的模型产生合理的暗物质候选。在本文中，我们研究了一个特定的模型C-III-A，来自$ s_3 $ -smmetric的三-HIGGS-DOUBLET模型的家族。该模型由两个有源SU（2）双重组和一个惰性组成。后者是由于$ \ mathbb {z} _2 $对称性的惰性，该对称幸存在$ s_3 $的破裂中，并且可以容纳暗物质粒子。我们基于理论和实验约束来数字探索模型。对参数空间进行了多次连续检查后，我们发现了一个可行的暗物质质量区域$ [6.5; \，44.5]〜\ text {gev} $。该区域与已提出的类似希格斯的暗物质状态大不相同：著名的惰性双线模型和具有三个标量双线的模型，带有一个或两个惰性双重球。此外，C-III-A模型允许自发违反CP。
In spite of the success of the Standard Model of Particle Physics, there are some theoretical predictions which are not yet fully established experimentally as well as some experimental observations which cannot be fitted within its theoretical framework, thus requiring physics beyond the Standard Model. One of these is a hypothetical non-luminous form of matter - dark matter. Models with an extended scalar electroweak sector yield plausible dark matter candidates. In this paper we study a specific model, C-III-a, from a family of $S_3$-symmetric three-Higgs-doublet models. The model consists of two active SU(2) doublets and an inert one. The latter is inert due to a $\mathbb{Z}_2$ symmetry that survives the breaking of $S_3$, and would accommodate a dark matter particle. We explore the model numerically, based on theoretical and experimental constraints. After applying a number of successive checks over the parameter space we found a viable dark matter mass region in the range $[6.5;\,44.5]~\text{GeV}$. This region is drastically different from the Higgs-like dark matter states that have been proposed: the well-known Inert Doublet Model and models with three scalar doublets, with one or two inert doublets. Furthermore, the C-III-a model allows for spontaneous CP violation.
