论文标题
重力冻结在额外尺寸的温暖暗物质
Warm dark matter from a gravitational freeze-in in extra dimensions
论文作者
论文摘要
我们在额外的维度上研究了重力相互作用的暗物质的冻结。专注于仅在五维模型中通过重力与SM相互作用的最小暗物质候选者，我们发现大量的暗物质和kaluza-klein graviton块可以导致观察到的遗物密度。质量的首选值和相互作用的强度使得在陆地实验中很难测试这种情况。但是，参数空间的重要部分导致了温暖的暗物质，可以通过宇宙学和天体物理观测来测试。
We study the freeze-in of gravitationally interacting dark matter in extra dimensions. Focusing on a minimal dark matter candidate that only interacts with the SM via gravity in a five-dimensional model we find that a large range of dark matter and Kaluza-Klein graviton masses can lead to the observed relic density. The preferred values of the masses and the strength of the interaction make this scenario very hard to test in terrestrial experiments. However, significant parts of the parameter space lead to warm dark matter and can be tested by cosmological and astrophysical observations.
