This report presents the detection framework and a proposal for a pilot table-top experiment (supported by simulations and preliminary test results) for adoption into narrow mass range light Cold Dark Matter (CDM) searches, specifically for axions or Axion-Like Particles (ALPs) in a resonant cavity-based scheme. The novelty of this proposal lies in an attempt to concentrate searches corresponding to specific axion masses of interest (coinciding with recent proposals), using multiple cavities in a symmetric scheme, instead of using noisy and complicated tuning mechanisms, and in reduction of associated hardware by employing simpler underlying instrumentation instead of heterodyne mode of detection, by means of a low-noise ac amplification and dc phase-sensitive detection scheme, in order to make a viable and compact table-top experiment possible. These simplifications could possibly be valuable in substantially reducing detection hardware, experiment complexities (and associated noise) and long run-times, while maintaining low noise similar to conventional axion searches. The feasibility of proposed scheme and the experiment design are demonstrated with some calculations, simulations and preliminary tests with artificial axion signals injected into the cavities. The technique and ideas reported here have significant potential to be developed into a small-scale table-top, narrow-range, dark matter axion/ALP spectroscopy experiment, in addition to aiding in the on-going resonant cavity-based and broadband experiments.

中文翻译：

---

窄质量范围浅冷暗物质颗粒搜索的桌面试验实验

本报告介绍了检测框架和用于台式实验的提议（由模拟和初步测试结果支持），以用于窄质量范围光冷暗物质（CDM）搜索，尤其是针对轴或类似轴的粒子（ALP） ）的谐振腔为基础的方案。该建议的新颖性在于尝试集中搜索与特定轴突相关的质量（与最近的建议一致），在对称方案中使用多个空腔，而不是使用嘈杂和复杂的调整机制，并通过减少相关硬件通过低噪声交流放大和直流，采用更简单的基础仪器代替外差检测方式相敏感检测方案，以使可行且紧凑的台式实验成为可能。这些简化可能在实质上减少检测硬件，降低实验复杂性（以及相关的噪声）和延长运行时间的同时，还可以保持类似于常规轴突搜索的低噪声，可能具有宝贵的价值。通过将人工轴突信号注入腔体中进行一些计算，模拟和初步测试，证明了该方案和实验设计的可行性。除协助正在进行的基于谐振腔的和宽带实验外，此处报道的技术和想法还具有开发到小型台式，窄范围暗物质轴突/ ALP光谱实验的巨大潜力。