WISPy暗物质的碟形天线探测器：方向分辨率小质量限制
Dish Antenna Searches for WISPy Dark Matter: Directional Resolution Small Mass Limitations
摘要：
隐藏的光子和类轴子暗物质可以使用球形反射表面来检测，例如碟形天线设置将一些暗物质粒子转换成光子并将它们集中在检测器上。这些设置可用于执行测量暗物质动量分布的定向搜索。我们简要地回顾了光子分布的预期检测与这样的天线和方向性的射线近似分辨率。此外，我们考虑政权$m_{DM} \lesssim (R_{sp}\,v_{DM})^{-1}$，这种近似不再成立，由于光子波长超过预期的分布宽度。我们讨论了这如何影响预期的分布和实验的影响。
英文摘要：
Hidden photon and axion-like dark matter may be detected using spherical reflective surfaces such as dish antenna setups converting some of the dark matter particles into photons and concentrating them on a detector. These setups may be used to perform directional searches measuring the dark matter momentum distribution. We briefly review the photon distribution one expects to detect with such an antenna and directional resolution in ray approximation. Furthermore we consider the regime $m_{DM} \lesssim (R_{sp}\,v_{DM})^{-1}$ where this approximation does not hold anymore due to the photon wavelength exceeding the expected distribution widths. We discuss how this affects the expected distributions and experimental implications.
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