标题： 使用MICROSCOPE空间实验搜寻QCD耦合轴子暗物质 显示英文标题

标题： Search for QCD coupled axion dark matter with the MICROSCOPE space experiment

摘要： 与量子色动力学（QCD）耦合的轴子暗物质会导致不同组成测试质量之间的微分加速度不为零。 等效原理的检验，如最近的MICROSCOPE空间任务，对此类信号敏感。 我们使用MICROSCOPE实验最终发布的数据，来搜索这种效应。 我们没有发现与暗物质模型一致的阳性信号，并且对轴子-胶子耦合设置了上限，对于轴子质量在$10^{-17}$eV 到$10^{-13}$eV 范围内的改进了现有的实验室界限，最多提高了两个数量级。 显示英文摘要

摘要： Axion dark matter coupled via QCD induces a non-zero differential acceleration between test masses of different composition. Tests of the equivalence principle, like the recent MICROSCOPE space mission, are sensitive to such a signal. We use the final released data of the MICROSCOPE experiment, to search for this effect. We find no positive signal consistent with the dark matter model, and set upper limits on the axion-gluon coupling that improve existing laboratory bounds by up to two orders of magnitude for axion masses in the $10^{-17}$ eV to $10^{-13}$ eV range.