论文标题
Kaluza-klein fifd暗物质在扭曲的额外维度中
Kaluza-Klein FIMP Dark Matter in Warped Extra-Dimensions
论文作者
论文摘要
我们首次研究暗物质（DM）是由微弱相互作用的巨大颗粒（FIMP）制成的，在额外维度的randall-sundrum场景中与标准模型粒子相互作用。我们假设暗物质和标准模型都位于IR-Brane中，并且仅通过引力介体（即重力，Kaluza-Klein Gravitons和Radion）相互作用。我们发现，在早期的宇宙中，DM可以通过两个主要过程生成：直接冻结和顺序冻结。观察到的DM遗物丰度的区域在很大程度上与宇宙学和对撞机的边界兼容。
We study for the first time the case in which Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the standard model particles in an extra-dimensional Randall-Sundrum scenario. We assume that both the dark matter and the standard model are localized in the IR-brane and only interact via gravitational mediators, namely the graviton, the Kaluza-Klein gravitons and the radion. We found that in the early Universe DM could be generated via two main processes: the direct freeze-in and the sequential freeze-in. The regions where the observed DM relic abundance is produced are largely compatible with cosmological and collider bounds.
