论文标题
热挤压模型中的胶球
Glueballs in a Thermal Squeezeout Model
论文作者
论文摘要
已经表明，一阶限制相过渡可以极大地改变遗物的深色物质丰度，因为只有沉重的深色夸克将深色扇区限制。我们研究了一个具有Z'门户网站到标准模型的模型的现象学。我们发现，在这种设置中，深色粘合球长期存在，并在衰减标准模型后稀释了暗物质的丰度。有了这种效果，可获得正确的遗物丰度，而深色物质质量最多可达$ \ MATHCAL {O}（10^6）$ 〜TEV。我们发现，尽管直接检测和对撞机搜索已经排除了参数空间的一部分，但仍有一个可行场景的广泛空间可以通过将来的实验来探测。
It has been shown that a first order confinement phase transition can drastically change the relic dark matter abundance in confining dark sectors with only heavy dark quarks. We study the phenomenology of one such model with a Z' portal to Standard Model. We find that dark glueballs are long-lived in this setup and dilute the dark matter abundance after their decay to Standard Model. With this effect, the correct relic abundance is obtained with dark matter masses up to $\mathcal{O}(10^6)$~TeV. We find that while a part of the parameter space is already ruled out by direct detection and collider searches, there is still a broad space of viable scenarios that can be probed by future experiments.
