论文标题
一阶相变和域壁的重力波
Gravitational Waves from first-order phase transition and domain wall
论文作者
论文摘要
在许多粒子物理模型中，在离散对称性破裂后的相变过程中可以形成域壁。我们研究了复杂的单线扩展标准模型框架中的情况，在该场景中，可以根据隐藏的标量质量以及额外的重型希格斯和SM Higgs质量之间的混合而发生强烈的一阶相变。引力波谱是典型的两峰形状，即未来的基于空间的干涉仪可以探测强一级相变的幅度和峰值，并且从域壁衰减的峰附近探测，远远超出了当前PTA的功能，以及未来的SKA。
In many particle physics models, domain wall can form during the phase transition process after discrete symmetry breaking. We study the scenario within a complex singlet extended Standard Model framework, where a strongly first order phase transition can occur depending on the hidden scalar mass and the mixing between the extra heavy Higgs and the SM Higgs mass. The gravitational wave spectrum is of a typical two-peak shape, the amplitude and the peak from the strongly first order phase transition is able to be probed by the future space-based interferometers, and the one locates around the peak from the domain wall decay is far beyond the capability of the current PTA, and future SKA.
