论文标题
使用回声方法搜索轴心流
Searching for axion streams with the echo method
论文作者
论文摘要
斧头暗物质回声技术，在参考文献中提出。 [1]，旨在通过检测来自环境轴线暗物质刺激的衰减的电磁回声来搜索轴线暗物质，与无线电 - 微波外发出的光束相互作用。在这项工作中，我们以太阳系中存在的细粒流的形式考虑了与标准光晕模型（SHM）的偏差，并将其用作轴突回波方法的目标，该方法证明对特定的局部轴心暗物质相位空间分布非常敏感。我们表明，流的极小分散体有利于回声方法的性能，从而提高了其在轴 - 光子耦合的敏感性，相对于各向同性SHM，它最多可达两个数量级。我们还讨论了靶向高密度暗物质头发时形成的可能性，当细粒溪流聚焦于内地的重力场。
The axion dark matter echo technique, proposed in Ref. [1], aims to search for axion dark matter by detecting the electromagnetic echo coming from stimulated decay of ambient axion dark matter interacting with a radio-microwave outgoing beam. In this work we consider deviations from the standard halo model (SHM) in the form of fine grained streams that are present in the solar system and use them as a target for the axion echo method, which demonstrates to be very sensitive to particular local axion dark matter phase space distributions. We show that the extremely small dispersion of the streams works in favor of the echo method performance, improving its sensitivity in the axion-photon coupling up to two orders of magnitude, with respect to the isotropic SHM. We also discuss the possibility of targeting high density dark matter hairs formed when fine grained streams focus by the inner Earth's gravitational field.
