多信使天体粒子物理：通过GRB GW170817A的时延分析对轻量带电暗物质的第一项约束
The Multi-Messenger Astroparticle Physics: the First Constraint on Light Millicharged Dark Matter via Time-Delay Analysis of GRB GW170817A
AI总结：
通过GRB GW170817A的时延分析，首次对轻量带电暗物质进行了严格约束，参数ε上限为10^-14。
摘要：
多信使天体粒子物理提供了一种探测超出标准模型新物理的新方法。我们提出探测能够与电磁相互作用的轻量暗物质。具体而言，我们从GW170817的多信使观测中推导出对带电暗物质的新约束。在中子星合并事件GW170817中，观测到伽马射线暴（GRB）比引力波发射延迟约1.7秒。利用这一延迟，我们对暗物质参数空间进行了约束，考虑了宇宙大尺度结构。对于暗物质质量低于10^-15 eV的情况，参数ε被约束在10^-14以下，代表迄今为止最严格的限制。
英文摘要：
The multi-messenger astroparticle physics provides a new approach to probe the new physics beyond the Standard Model. We propose to probe the light dark matter which can interact with electromagnetic interaction. To be concrete, we derive the new constraint on the millicharged dark matter from the multi-messenger observations of GW170817. In the neutron star merger event GW170817, the first detection of a gamma-ray burst (GRB) delayed by approximately 1.7 seconds relative to the gravitational wave emission was observed. Utilizing this delay, we constrain the parameter space of the millicharged dark matter within the large-scale structure of the Universe. For dark matter mass below $10^{-15}$ eV, the parameter $ε$ is constrained to be less than $10^{-14}$, representing the most stringent limits achieved to date.
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