论文标题
在2HDM面对未来Z＆Higgs工厂的强大一阶electeroweak eartoweak阶段过渡
Strong first order electroweak phase transition in 2HDM confronting future Z & Higgs factories
论文作者
论文摘要
可以通过扩展具有额外标量的标准模型（SM）Higgs扇区来进行一阶electroweak相变。相同的新物理学可以通过提供额外的CP违规和SPHALERON过程来解释宇宙的物质抗对称性。在本文中，我们研究了I型和II型两个HIGGS Doublet模型（2HDM）中强的一阶电子相变（SFOEWPT）的存在。我们专注于SFOEWPT的需求如何限制非SM Higgs的光谱。通过参数空间扫描，我们发现SFOEWPT提出了少于higgs $ m_ {a/h/h/h^\ pm} $的上限，该限制小于1 TEV。高温膨胀和希格斯真空升高用于分析我们的结果。我们还研究了Higgs的SFOEWPT和$ Z $ - Pole Precision测量的探测能力，并在未来的Higgs和$ Z $工厂的一环级别上进行了测量。以及理论约束，较大的环校正需要$ m_a \ of m_ {h^\ pm}> m_h $，以满足II类型2HDM的SFOEWPT条件。
The electroweak phase transition can be made first order by extending the Standard Model (SM) Higgs sector with extra scalars. The same new physics can explain the matter-antimatter asymmetry of the universe by supplying an extra source of CP violation and sphaleron processes. In this paper we study the existence of a strong first order electroweak phase transition (SFOEWPT) in the type-I and type-II two Higgs doublet models (2HDM). We focus on how the SFOEWPT requirement constraints the spectrum of non-SM Higgs. Through a parameter space scan, we find that SFOEWPT suggests upper limits on the masses of heavy Higgs $m_{A/H/H^\pm}$, which is less than 1 TeV. High temperature expansion and Higgs vacuum uplifting is used for an analytical understanding of our results. We also study the probe ability on SFOEWPT from Higgs and $Z$-pole precision measurements at the one-loop level at future Higgs & $Z$ factories. And together with theoretical constraints, sizeable loop corrections require $m_A \approx m_{H^\pm} > m_H$ to meet SFOEWPT condition in Type-II 2HDM.
