标题： 一阶相变中增强的暗物质丰度 显示英文标题

标题： Enhanced Dark Matter Abundance in First-Order Phase Transitions

摘要： 我们提出一种新的情景，以获得热学下产生的暗物质的正确剩余丰度。 此情景利用温度$T_{\rm PT}$处的强一阶相变，产生暗物质质量$m$。 在破缺相中的冻结可以产生当前观测界限和理论约束所允许区域内的期望丰度对于$10^2 T_{\rm PT} \lesssim m \lesssim 10^4 T_{\rm PT}$。 我们表明伴随的引力波足够强，可以被许多即将开展和提出的实验检测到。 这与暗物质的间接搜索相结合，为这类模型提供了一种多信使探测方法。 未来的积极信号有助于重建控制相变的势能，并揭示潜在的粒子物理实现。 显示英文摘要

摘要： We propose a novel scenario to obtain the correct relic abundance for thermally under-produced dark matter. This scenario utilizes a strongly first-order phase transition at temperature $T_{\rm PT}$ that gives rise to dark matter mass $m$. Freeze-out in the broken phase can yield the desired abundance in the entire region currently allowed by observational bounds and theoretical constraints for $10^2 T_{\rm PT} \lesssim m \lesssim 10^4 T_{\rm PT}$. We show that the accompanying gravitational waves are strong enough to be detected by many upcoming and proposed experiments. This, in tandem with dark matter indirect searches, provides a multi-messenger probe of such models. Positive signals in the future can help reconstruct the potential governing the phase transition and shed light on an underlying particle physics realization.