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arXiv 1803.01249hep-ph
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作为暗物质候选者的Radion

The Radion as a Dark Matter Candidate

Fayez Abu-Ajamieh

摘要:

本文研究了一类具有尺度不变性自发破缺的Randall-Sundrum(RS)模型。这类模型实现了Continuo-Pomarol-Rattazzi(CPR)机制,通过外部接近边缘的尺度破坏算子的小运行来实现SBSI,该算子导致与小运行抑制的物质耦合的轻介子/辐射子。我表明,对于Radion质量$\lesssim 1$ KeV,它可以作为一个暗物质(DM)的候选人,具有比宇宙年龄更长的寿命,并表明从大型强子对撞机,非牛顿引力和类轴子粒子(ALP)搜索的实验范围允许这样的Radion的存在。

英文摘要:

I study a class of Randall-Sundrum (RS) models with Spontaneous Breaking of Scale Invariance (SBSI). This class of models implements the Contino-Pomarol-Rattazzi (CPR) mechanism to achieve SBSI through the small running of an external close-to-marginal scale-breaking operator that leads to a light dilaton/radion with couplings to matter suppressed by the small running. I show that for radion masses $\lesssim 1$ KeV, it can serve as a Dark Matter (DM) candidate, with a lifetime longer than the age of the universe, and show that the experimental bounds from LHC, Non-Newtonian Gravity and Axion-Like Particle (ALP) searches allow for the existence of such a radion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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