论文标题
对异国旋转相关性相互作用的新约束
New Constraints on Exotic Spin-Velocity-Dependent Interactions
论文作者
论文摘要
对新的“第五”力的实验搜索引起了很多关注，因为它们允许测试标准模型的理论扩展。在这里，我们通过使用K-rb-$^{21} $ ne共磁力仪和一个具有高核密度的钨环，报告了对可能的第五力，特别是自旋依赖性力的新实验搜索。利用共磁性计的高灵敏度，第五力量的伪磁场被测量为$ <7 $ \。这为中子核子和质子核子相互作用的耦合常数设定了新的限制，范围为$ \ ge 0.1 $ m。耦合常数限制被确定为$ | g_v^n | <6.6 \ times 10^{ - 11} $和$ | g_v^p | <3.0 \ 3.0 \ times 10^{ - 10} $，它们比新的等级boson和标准模型之间的天文学和宇宙学限制要高于天文学和宇宙学的限制，例如z $'$'$'$'$'$'$'$'$'$'$'
Experimental searches for new, "fifth" forces are attracting a lot of attention because they allow to test theoretical extensions to the standard model. Here, we report a new experimental search for possible fifth forces, specifically spin-and-velocity dependent forces, by using a K-Rb-$^{21}$Ne co-magnetometer and a tungsten ring featuring a high nucleon density. Taking advantage of the high sensitivity of the co-magnetometer, the pseudomagnetic field from the fifth force is measured to be $<7$\,aT. This sets new limits on coupling constants for the neutron-nucleon and proton-nucleon interactions in the range of $\ge 0.1$ m. The coupling constant limits are established to be $|g_V^n|<6.6\times 10^{-11}$ and $|g_V^p|<3.0\times 10^{-10}$, which are more than one order of magnitude tighter than astronomical and cosmological limits on the coupling between the new gauge boson such as Z$'$ and standard model particles.
