作为银河系暗光子射电望远镜的谐振腔
Cavity as Radio Telescope for Galactic Dark Photon
AI总结：
本文提出用超导射频谐振腔作为射电望远镜探测银河系暗光子背景，通过每日信号变化区分偏振，并获得了暗光子与光子动力学混合系数迄今最严格的限制，开辟了多信使间接探测暗物质的新途径。
摘要：
暗光子作为通过额外阿贝尔规范群对标准模型的最小扩展，可能源自暗物质衰变或湮灭，并以相对论性速度在银河系中传播，从而构成银河系暗光子背景。暗光子的产生通常倾向于特定的偏振模式，这些模式依赖于暗物质与暗光子之间的相互作用。我们引入一个框架，利用谐振腔来探测和区分这些偏振，利用暗光子各向异性分布和地球自转所导致的预期信号的每日变化。我们使用超导射频腔进行实验搜寻，这些腔以其极高的品质因数而著称，证明它们是观测银河系暗光子的有效望远镜。该方法建立了迄今为止对暗光子与电磁光子之间动力学混合系数最严格的限制，从而开辟了通过多信使天文学间接搜寻暗物质的新途径。
英文摘要：
Dark photons, as a minimal extension of the Standard Model through an additional Abelian gauge group, may propagate relativistically across the galaxy, originating from dark matter decay or annihilation, thereby contributing to a galactic dark photon background. The generation of dark photons typically favors certain polarization modes, which are dependent on the interactions between dark matter and dark photons. We introduce a framework in which a resonant cavity is utilized to detect and differentiate these polarizations, leveraging the daily variation in expected signals due to the anisotropic distribution of dark photons and the rotation of the Earth. We conduct an experimental search using superconducting radio-frequency cavities, noted for their exceptionally high quality factors, proving them to be effective telescopes for observing galactic dark photons. This approach establishes the most stringent limits yet on the kinetic mixing coefficient between dark photons and electromagnetic photons, thereby unveiling a novel avenue for the indirect search for dark matter via multi-messenger astronomy.
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。
