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arXiv 2408.02668hep-ph
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利用1000公里基线干涉仪寻找暗物质

Searching for dark matter with a 1000 km baseline interferometer

Daniel Gavilan-Martin, Grzegorz Lukasiewicz, Mikhail Padniuk, Emmanuel Klinger, Magdalena Smolis, Nataniel L. Figueroa, Derek F. Jackson Kimball, Alexander O. S… 展开作者

Daniel Gavilan-Martin, Grzegorz Lukasiewicz, Mikhail Padniuk, Emmanuel Klinger, Magdalena Smolis, Nataniel L. Figueroa, Derek F. Jackson Kimball, Alexander O. Sushkov, Szymon Pustelny, Dmitry Budker, Arne Wickenbrock

AI总结:

利用位于德国与波兰的1000公里基线原子干涉仪,搜寻类轴子粒子暗物质,未发现信号,但将ALP-中子与质子耦合的实验限制提升了三个数量级。

摘要:

类轴子粒子(ALPs)源于对标准模型的合理扩展,可能构成暗物质。ALP暗物质将表现为以(目前未知的)频率振荡的场。该频率与ALP质量成线性关系,合理范围在10^-22至10 eV/c^2之间。这促使了宽带搜索方法的发展。我们报告了利用一台干涉仪直接搜寻ALP暗物质的结果,该干涉仪由两台原子K-Rb-^3He共磁力计组成,分别位于德国美因茨和波兰克拉科夫。我们利用ALP场预期的时空相干特性,探测了覆盖九个数量级质量范围的所有ALP梯度-自旋相互作用。未发现ALP信号存在的显著证据。因此,我们对ALP-中子、ALP-质子和ALP-电子耦合设定了新的上限,分别低至g_aNN<10^-9 GeV^-1、g_aPP<10^-7 GeV^-1和g_aee<10^-6 GeV^-1。这些限制将先前的中子和质子耦合实验室约束最多改善了三个数量级。

英文摘要:

Axion-like particles (ALPs) arise from well-motivated extensions to the Standard Model and could account for dark matter. ALP dark matter would manifest as a field oscillating at an (as of yet) unknown frequency. The frequency depends linearly on the ALP mass and plausibly ranges from $10^{-22}$ to $10$ eV/$c^2$. This motivates broadband search approaches. We report on a direct search for ALP dark matter with an interferometer composed of two atomic K-Rb-$^3$He comagnetometers, one situated in Mainz, Germany, and the other in Kraków, Poland. We leverage the anticipated spatio-temporal coherence properties of the ALP field and probe all ALP-gradient-spin interactions covering a mass range of nine orders of magnitude. No significant evidence of an ALP signal is found. We thus place new upper limits on the ALP-neutron, ALP-proton and ALP-electron couplings reaching below $g_{aNN}<10^{-9}$ GeV$^{-1}$, $g_{aPP}<10^{-7}$ GeV$^{-1}$ and $g_{aee}<10^{-6}$ GeV$^{-1}$, respectively. These limits improve upon previous laboratory constraints for neutron and proton couplings by up to three orders of magnitude.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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