论文标题
检测具有手性磁效应的轴轴暗物质
Detecting axion dark matter with chiral magnetic effects
论文作者
论文摘要
我们表明，由于（中）轴向异常，暗物质轴或类似轴突状的颗粒（ALP）在沿外部磁场的导体中自发交替交替，从而意识到手性磁效应（CME）。我们提出了一个新的实验，以测量该电流以检测暗物质轴或ALP。这些诱导的电流是电子培养基效应，与轴突或ALP耦合直接成正比，这取决于其显微镜物理。在实验设置中，一个由于CME和真空电流引起的电流总和，这是由于异常的轴突 - 光子耦合而引起的。与后者相比，CME电流通常是电子速度的一个因子，除非轴突或ALP偶联与电子的偶联比其与光子的偶联大得多，以补偿Fermi速度抑制。但是，我们发现重新利用当前操作和计划的轴突卤素可能具有良好的敏感性来探测CME电流。
We show that dark matter axions or axion-like particles (ALP) induce spontaneously alternating electric currents in conductors along the external magnetic fields due to the (medium) axial anomaly, realizing the chiral magnetic effects (CME). We propose a new experiment to measure this current to detect the dark matter axions or ALP. These induced currents are the electron medium effects, directly proportional to the axion or ALP coupling to electrons, which depends on their microscopic physics. In the experimental setup one measures the sum of the electric current due to CME and the vacuum current due to the anomalous axion-photon coupling. The CME current is in general subdominant by a factor of the Fermi velocity of electrons, compared to latter, unless the axion or ALP coupling to electrons is much bigger than its coupling to photons to compensate the Fermi velocity suppression. However, we find that repurposing the currently operating and planned axion haloscopes may have good sensitivity to probe the CME current.
