QUALIPHIDE实验对隐光子暗物质的宽带直接探测约束
Wideband Direct Detection Constraints on Hidden Photon Dark Matter with the QUALIPHIDE Experiment
AI总结：
该研究利用QUALIPHIDE低温光谱装置，通过量子极限放大技术对20-30微电子伏特隐光子暗物质进行直接探测，将动力学混合参数约束至略高于10^-12。
摘要：
我们报告了使用低温发射器-接收器-放大器光谱装置对质量在20-30微电子伏特之间的隐光子暗物质存在的直接探测约束，该装置是QUALIPHIDE（量子极限暗光子实验）的第一代设计。金属碟片通过隐光子动力学混合将转换光子源引导至喇叭天线，该天线与C波段动力学电感行波参量放大器耦合，提供接近量子极限的噪声性能。我们首次将动力学混合参数“chi”的探测下限推进至略高于10^-12，覆盖该区域内大多数隐光子质量。这些结果不仅对新的暗物质参数空间施加了严格约束，也是宽带量子极限放大在天体粒子物理应用中的首次演示。
英文摘要：
We report direction detection constraints on the presence of hidden photon dark matter with masses between 20-30 ueV using a cryogenic emitter-receiver-amplifier spectroscopy setup designed as the first iteration of QUALIPHIDE (QUantum LImited PHotons In the Dark Experiment). A metallic dish sources conversion photons from hidden photon kinetic mixing onto a horn antenna which is coupled to a C-band kinetic inductance traveling wave parametric amplifier, providing for near quantum-limited noise performance. We demonstrate a first probing of the kinetic mixing parameter "chi" to just above 10^-12 for the majority of hidden photon masses in this region. These results not only represent stringent constraints on new dark matter parameter space but are also the first demonstrated use of wideband quantum-limited amplification for astroparticle applications
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