论文标题
发条/线性dilaton额外维度中的FIMP暗物质
FIMP Dark Matter in Clockwork/Linear Dilaton Extra-Dimensions
论文作者
论文摘要
我们研究了暗物质（DM）是由微弱相互作用的巨大颗粒（FIMP）制成的，只是在发条/线性dilaton（CW/LD）模型的框架中与标准模型粒子相互作用。我们在这里限制DM颗粒是标量场的情况。本文扩展了我们先前对FIMP的研究Randall-Sundrum（RS）扭曲额外维度的研究。在RS情况下，在CW/LD模型中，我们发现参数空间的一个重要区域可以在MEV范围内使用标量DM质量复制观察到的DM遗物丰度，重新加热从10 GEV到$ 10^{9} $ GEV不等。我们在两个额外维度模型中评论结果的相似之处。
We study the possibility that Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the Standard Model particles in the framework of a Clockwork/Linear Dilaton (CW/LD) model. We restrict here to the case in which the DM particles are scalar fields. This paper extends our previous study of FIMP's in Randall-Sundrum (RS) warped extra-dimensions. As it was the case in the RS scenario, also in the CW/LD model we find a significant region of the parameter space in which the observed DM relic abundance can be reproduced with scalar DM mass in the MeV range, with a reheating temperature varying from 10 GeV to $10^{9}$ GeV. We comment on the similarities of the results in both extra-dimensional models.
