论文标题
使用基于自旋的放大器，轴心窗口内的轴和轴颗粒的限制
Limits on axions and axionlike particles within the axion window using a spin-based amplifier
论文作者
论文摘要
搜索轴突和轴突状的颗粒可能会保留钥匙，以解锁我们宇宙的一些最深的难题，例如暗物质和暗能量。在这里，我们使用最近证明的基于自旋的放大器来限制动机良好的``轴窗）'（1 $ $ $ $ ev-1 meV），通过搜索偏振电子和中子旋转之间的异国间自旋旋转相互作用。关键要素是使用超极化的长寿命$^{129} $ XE核自旋作为外来相互作用产生的假磁场的放大器。使用这样的旋转传感器，我们在耦合常数$ g_p^e g_p^n $的乘积上获得了直接上限。基于自旋的放大器技术可以扩展到搜索标准模型之外的各种假设粒子。
Searches for the axion and axionlike particles may hold the key to unlocking some of the deepest puzzles about our universe, such as dark matter and dark energy. Here we use the recently demonstrated spin-based amplifier to constrain such hypothetical particles within the well-motivated ``axion window'' (1 $μ$eV-1 meV) through searching for an exotic spin-spin interaction between polarized electron and neutron spins. The key ingredient is the use of hyperpolarized long-lived $^{129}$Xe nuclear spins as an amplifier for the pseudomagnetic field generated by the exotic interaction. Using such a spin sensor, we obtain a direct upper bound on the product of coupling constants $g_p^e g_p^n$. The spin-based amplifier technique can be extended to searches for a wide variety of hypothetical particles beyond the Standard Model.
