论文标题
两个组成的暗物质模型及其相关的引力波
A Two-Component Dark Matter Model and its Associated Gravitational Waves
论文作者
论文摘要
我们考虑了标准模型的扩展，该标准模型解释了MUON $ G-2 $张力和中微子群众，并详细研究暗物质现象学。所考虑的模型包括w imp和fimp标量暗物质候选者，从而引起了两个组成的暗物质情景。我们讨论了生产的不同机制和机制，包括新型的冻结半生产，并表明WIMP和FIMP共同组成了当今观察到的遗物密度。额外的标量字段的存在允许一阶的相变。我们检查真空状态的演变，并讨论与一阶相变相关的随机重力波信号。我们表明，可以通过将来的重力波实验来探测重力波信号，该引力波可以用作互补检测信号。
We consider an extension of the Standard Model that accounts for the muon $g-2$ tension and neutrino masses and study in detail dark matter phenomenology. The model under consideration includes a WIMP and a FIMP scalar dark matter candidates and thus gives rise to two-component dark matter scenarios. We discuss different regimes and mechanisms of production, including the novel freeze-in semi-production, and show that the WIMP and FIMP together compose the observed relic density today. The presence of the extra scalar fields allows phase transitions of the first order. We examine the evolution of the vacuum state and discuss stochastic gravitational wave signals associated with the first-order phase transition. We show that the gravitational wave signals may be probed by future gravitational wave experiments which may serve as a complementary detection signal.
