标题： 用相对论气泡壁填充暗物质领域 显示英文标题

标题： Populating dark sectors with relativistic bubble walls

摘要： 在本次演讲中，我们提出了一种在第一类相变期间产生暗物质的机制，该机制通过气泡壁与等离子体量子的碰撞发生。 我们将首先研究暗物质通过可重整化算符产生的可能性。 我们将观察到，在这种情况下，暗物质的质量可能远大于相变尺度，并具有较大的初始速度，这使得暗物质今天可能是温暖的。 然后，我们将转向更现实的场景，其中暗物质领域是隔离的，其与可见领域（包括标准模型）的相互作用来源于五维和六维算符。 在此范围内，我们也发现这种暗物质通常今天是重的且温暖的。 我们分别研究了弱耦合和强耦合的暗物质领域，在后者的情况下，我们关注胶球暗物质，它表现出非常不同的现象学特性。 为了全面起见，我们还系统地计算了暗物质领域的冻结注入产生，并将其与气泡-等离子体暗物质丰度进行比较。 所有分析结果都整理成一张表格，呈现在这篇论文中。 显示英文摘要

摘要： In this talk, we present a mechanism of Dark Matter production during first order phase transitions and happening via the collision of the bubble wall and plasma quanta. We will first study the possibility that the dark matter is produced via a renormalisable operator. We will observe that in this context the DM can be much heavier than the scale of the phase transition and has a large initial velocity, leading to the possibility of the DM to be warm today. We will then turn to more realistic scenarios where the Dark Matter sector is secluded and its interaction with the visible sector (including the Standard Model) originates from dimension-five and dimension-six operators. In this regime, we also find that such DM is typically heavy and warm today. We study separately the cases of weakly and strongly coupled dark sectors, where, in the latter case, we focus on glueball DM, which turns out to have very distinct phenomenological properties. For completeness, we also systematically compute the Freeze-In production of the dark sector and compare it with the bubble-plasma DM abundances. All the analytical results are collected in a table presented in this paper.