论文标题
MACH-ZEHNDER干涉仪的Millicharge暗物质检测
Millicharge Dark Matter Detection with Mach-Zehnder Interferometer
论文作者
论文摘要
如果黑暗扇区存在并通过$ U（1）$混合与标准模型进行通信，则可能会影响到暗区域的物质场，所谓的Millicharge颗粒（MCP）。此外，最高的MCP可能是暗物质颗粒。最近，已经证明，MCP将被地球放慢并捕获。结果，与太阳系中的暗物质相比，地下累积的MCP的数量密度通过几个数量级增强。在这项研究中，我们建议使用Mach-Zehnder（MZ）激光干涉仪通过检测光子的相移来检测地球结合的MCP。我们表明，对于MCPS啤酒的质量大于$ 1 $ GEV，如果数字密度大于$ 1〜 \ rm {cm^{ - 3}} $，则探测混合参数$ε$的敏感性可能达到$ 10^{ - 11} $。
If the dark sector exists and communicates with Standard Model through the $U(1)$ mixing, it is possible that electromagnetism would have influence on matter fields in dark sector, so-called millicharge particles (mCPs). Furthermore, the highest mCPs could be dark matter particles. Recently it has been shown that the mCPs would be slowed down and captured by the earth. As a result, the number density of accumulated mCPs underground is enhanced by several orders of magnitude as compared to that of dark matter in our solar system. In this study, we propose to use the Mach-Zehnder (MZ) laser interferometer to detect earth bound mCPs through the detection of phase shifts of photons. We show that, for mass of mCPs lager than $1$ GeV, the sensitivity of probing the mixing parameter $ε$ could reach as low as $10^{-11}$ if number density is larger than $1~\rm{cm^{-3}}$.
