WISPLC: Search for Dark Matter with LC Circuit
WISPLC: Search for Dark Matter with LC Circuit
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WISPLC：用 LC 电路寻找暗物质
DOI：
10.1103/physrevd.106.023003
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发表时间：
2021
影响因子：
6.4
通讯作者：
D. Horns
中科院分区：
文献类型：
--
作者：
Zhongyue Zhang;Dr Oindrila Ghosh;D. Horns
对暗物质搜索的关注已经扩展到包括低质量粒子，如轴子或类轴子粒子，以及在QCD内外扩展现象学景观的新理论方案，在最近几十年也引起了额外的兴趣。假设暗物质是由轴子组成的，在螺线管磁场的存在下，它们会感应出一个位移电流，从而产生一个环形磁场。LC电路弱相互作用细长粒子探测（WISPLC）是一种精确的直接探测实验，将在以前未探索的部分参数空间中搜索轻暗物质候选者，如轴子粒子。我们提出了两种检测方案的信号在拾取回路捕获这个环形磁场的磁通量。WISPLC工作在一个宽带和一个谐振方案，其中一个LC电路用于增强信号与预期的Q因子$\sim 10^4$。考虑到探测器的不可约通量噪声，我们估计在10 ^{-11}$ eV到10 ^{-6}$ eV的轴子质量范围内，实验的灵敏度可达到约10^{-15} GeV ^{-1}$g_{a\gamma\gamma}的可探测轴子-光子耦合，使得探测由弦理论激发的超轻轴子的质量范围成为可能。WISPLC实验资金充足，目前处于建设阶段。
The focus on dark matter search has expanded to include low-mass particles such as axions or axion-like particles, and novel theoretical schemes extending the phenomenological landscape, within QCD and beyond, also garnered additional interest in recent decades. Assuming dark matter is composed of axions, in presence of a solenoidal magnetic field, they induce a displacement current that gives rise to a toroidal magnetic field. The Weakly Interacting Slender Particle detection with LC circuit (WISPLC) is a precision direct detection experiment that will search for light dark matter candidates such as axion-like particles in parts of the parameter space previously unexplored. We present two detection schemes of the signal in a pickup loop capturing the flux of this toroidal magnetic field. WISPLC operates in a broadband and a resonant scheme where a LC circuit is used to enhance the signal with an expected Q factor $\sim 10^4$. Taking into account the irreducible flux noise of the detector, we estimate the sensitivity of the experiment in the axion mass range between $10^{-11}$ eV and $10^{-6}$ eV to reach a detectable axion-photon coupling of $g_{a\gamma\gamma}\approx 10^{-15}~\mathrm{GeV}^{-1}$, making it possible to probe mass ranges corresponding to ultralight axions motivated by string theory. The WISPLC experiment is fully funded and currently in the construction phase.