论文标题
在较强的重力镜片下搜索类似轴突的颗粒
Searching for axion-like particles under strong gravitational lenses
论文作者
论文摘要
我们建立了强力引力透镜系统作为轴突样颗粒（ALP）的鲁棒探针 - 暗物质的候选者。光子与阿尔卑斯山的微小相互作用会引起双折射。重力镜头极化物体的多个图像允许双折射测量，减轻系统学和天体物理依赖性。我们将此新方法应用于镜头系统类B1152+199，并约束alp-photon耦合$ \ le 9.2 \ times 10^{ - 11}} \，{\ rm gev}^{ - 1} { - 1} \ 1} \ textrm {te} （$ 95 \％$ c.l.）对于$ 3.6 \ times 10^{ - 21} \，{\ rm ev} $和$ 4.6 \ times 10^{ - 18} \，{\ rm ev} $。 A larger sample will improve the constraints.
We establish strong gravitational lens systems as robust probes of axion-like particles (ALPs) -- a candidate for dark matter. A tiny interaction of photons with ALPs induces birefringence. Multiple images of gravitationally lensed polarised objects allow differential birefringence measurement, alleviating systematics and astrophysical dependencies. We apply this novel method to the lens system CLASS B1152+199 and constrain ALP-photon coupling $\le 9.2\times 10^{-11}\, {\rm GeV}^{-1} \textrm{ to } 7.7\times 10^{-8}\, {\rm GeV}^{-1}$ ($95\%$ C.L.) for ALP mass between $3.6\times 10^{-21} \,{\rm eV}$ and $4.6 \times 10^{-18} \,{\rm eV}$. A larger sample will improve the constraints.
