论文标题
ADMX-ORPHEUS首次搜索70 $μ$ EV暗光子暗物质：详细的设计，操作和分析
ADMX-Orpheus First Search for 70 $μ$eV Dark Photon Dark Matter: Detailed Design, Operations, and Analysis
论文作者
论文摘要
暗物质占宇宙中物质的85％和其能量密度的27％，但我们不知道什么包括暗物质。暗物质可能是由轴或暗光子组成的，两者都可以使用称为卤素的超敏感微波腔检测到。 ADMX使用的卤素由以TM $ _ {010} $模式运行的圆柱腔组成，并且对QCD轴敏感，质量为几美元$ $ $ ev。但是，这种卤素设计变得更具挑战性，无法实施更高的质量。这是因为较高的质量需要较小的直径腔，因此减少了降低检测到的信号功率的检测体积。 ADMX-ORPHEUS通过在高阶模式下操作可调节的，介电的腔来减轻此问题，从而使检测量保持较大。本文介绍了首届ADMX-ORPHEUS DARK PHOTON搜索的设计，操作，分析和结果，介于65.5 $μ$ EV（15.8 GHz）和69.3 $ $ $ $ eV（16.8 GHz）之间，以及用于轴承搜索的未来方向和探索更多参数空间。
Dark matter makes up 85% of the matter in the universe and 27% of its energy density, but we do not know what comprises dark matter. It is possible that dark matter may be composed of either axions or dark photons, both of which can be detected using an ultra-sensitive microwave cavity known as a haloscope. The haloscope employed by ADMX consists of a cylindrical cavity operating at the TM$_{010}$ mode and is sensitive to the QCD axion with masses of few $μ$eV. However, this haloscope design becomes challenging to implement for higher masses. This is because higher masses require smaller-diameter cavities, consequently reducing the detection volume which diminishes the detected signal power. ADMX-Orpheus mitigates this issue by operating a tunable, dielectrically-loaded cavity at a higher-order mode, allowing the detection volume to remain large. This paper describes the design, operation, analysis, and results of the inaugural ADMX-Orpheus dark photon search between 65.5 $μ$eV (15.8 GHz) and 69.3 $μ$eV (16.8 GHz), as well as future directions for axion searches and for exploring more parameter space.
