AI 中文总结
本研究利用等离子体激元增强的直接探测方法，结合SENSEI和DAMIC-M数据，推导90%置信水平的排除极限，对轻自相互作用暗物质的部分参数空间形成约束。
AI 中文摘要
轻暗物质模型常引入轻媒介子以促进其与标准模型的相互作用，若该媒介子足够轻，可诱导暗物质粒子间的长程自相互作用，为小尺度结构异常提供合理解决方案。然而，传统探测器难以实现轻自相互作用暗物质（SIDM）的直接探测。本研究探讨高能宇宙射线加速的轻SIDM在硅探测器中的探测灵敏度，利用电子集体激发，结合公开的SENSEI和DAMIC-M电离数据，推导得到90%置信水平的排除极限，该约束可覆盖部分受银河系小尺度结构异常青睐的轻SIDM参数空间。
英文摘要
Models of light dark matter often invoke a light mediator to facilitate interactions with the Standard Model. If sufficiently light, this mediator can induce long-range self-interactions among dark matter particles, offering a compelling resolution to small-scale structure anomalies. However, direct detection of light self-interacting dark matter (SIDM) remains challenging for conventional detectors. In this work, we investigate the sensitivity of searches for light SIDM accelerated by high-energy cosmic rays in silicon detectors. Leveraging the electronic collective excitations, we derive 90\% C.L. exclusion limits using public SENSEI and DAMIC-M ionization data. Our constraints can cover a portion of the light SIDM parameter space favored by galactic small-scale anomalies.
Comments7pages, 3 figures
