论文标题
引力波和希格斯质量
Gravitational waves and the Higgs mass
论文作者
论文摘要
最简单的模型之一，允许具有electroweak（EW）强的一阶相变（SFOPT），而观察到的质量为125 GEV的Higgs是标准模型（SM）的单元扩展。我们讨论了SM的复杂单线扩展的两个不同阶段。如果Singlet的真空期望值为零（VEV），则情况与没有SFOPT的SM完全相同。但是，当单线获取VEV时，可以使用SFOPT，从而产生Lisa可检测到的重力波（GWS）。该模型还提供了候选暗物质。我们研究了SM粒子对GWS频谱强度的影响。事实证明，在实验测量值的一个标准偏差之内，希格斯玻色子和顶级夸克质量的变化对GWS可检测性前景具有明显的影响。
One of the simplest models that allows for an electroweak (EW) strong first order phase transition (SFOPT) while having a Higgs with the observed mass of 125 GeV is the singlet extension of the Standard Model (SM). We discuss two different phases of a complex singlet extension of the SM. If the singlet has a zero vacuum expectation value (VEV) the situation is exactly the same as in the SM with no SFOPT. However, when the singlet acquires a VEV, a SFOPT is possible, giving rise to detectable gravitational waves (GWs) by LISA. The model also provides a dark matter candidate. We have studied the impact of the SM particle masses on the strength of the GWs spectrum. It turns out that the variation of the Higgs boson and top quark masses within one standard deviation of the experimentally measured value has a noticeable impact on GWs detectability prospects.
