论文标题
超轻矢量暗物质搜索带有引力波检测器的辅助长度通道
Ultralight vector dark matter search with auxiliary length channels of gravitational wave detectors
论文作者
论文摘要
最近，通过测量引力波探测器的臂腔的振荡长度变化，对寻找超轻暗物质的搜索有了极大的关注。尽管引力波检测器对于测量差分长度变化非常敏感，但对暗物质的敏感性在很大程度上被减弱，因为暗物质的效果主要是臂腔测试量的共同点。在这里，我们建议使用辅助长度通道，以测量功率和信号回收腔长度的变化和差异米歇尔森干涉仪长度。可以通过利用辅助干涉仪比两个臂腔更不对称的事实来增强对暗物质的敏感性。 We show that the sensitivity to $U(1)_{B-L}$ gauge boson dark matter with masses below $7\times 10^{-14}$ eV can be greatly enhanced when our method is applied to a cryogenic gravitational wave detector KAGRA, which employs sapphire test masses and fused silica auxiliary mirrors.我们表明，kagra可以探测质量超过$ 1.5 \ times 10^{ - 14} $ eV的未探索参数空间的数量级，而没有对现有干涉仪进行任何修改。
Recently, a considerable amount of attention has been given to the search for ultralight dark matter by measuring the oscillating length changes in the arm cavities of gravitational wave detectors. Although gravitational wave detectors are extremely sensitive for measuring the differential arm length changes, the sensitivity to dark matter is largely attenuated, as the effect of dark matter is mostly common to arm cavity test masses. Here, we propose to use auxiliary length channels, which measure the changes in the power and signal recycling cavity lengths and the differential Michelson interferometer length. The sensitivity to dark matter can be enhanced by exploiting the fact that auxiliary interferometers are more asymmetric than two arm cavities. We show that the sensitivity to $U(1)_{B-L}$ gauge boson dark matter with masses below $7\times 10^{-14}$ eV can be greatly enhanced when our method is applied to a cryogenic gravitational wave detector KAGRA, which employs sapphire test masses and fused silica auxiliary mirrors. We show that KAGRA can probe more than an order of magnitude of unexplored parameter space at masses around $1.5 \times 10^{-14}$ eV, without any modifications to the existing interferometer.
