论文标题
搜索具有精确磁力测定法的自旋依赖性第五力
Search of spin-dependent fifth forces with precision magnetometry
论文作者
论文摘要
旋转依赖性的五力与超出标准模型之外的粒子有关。特别是，光伪量阶级玻色子介导远距离力，使质量与自旋相互作用。可以通过定期改变源质量和旋转集合之间的距离来进行这些相互作用的搜索，以调节力强度并使用精确的磁力测定技术检测。在我们的设置中，该力是由室温引导质量引起的，并在4.2 \ K的顺磁晶体中检测到，其磁化是由基于鱿鱼的磁力计监测的，其灵敏度为$ 53 \，\ mathrm {at/\ sqrt {hz}}} $。我们的测量将最严格的约束放在范围1 \，cm至10 \，m和10 \，km至300 \，km中的自旋质量相互作用上，将现有限制提高到两个以上的数量级。我们表明，该实验技术可能会进一步利用，以探索第五力量参数空间的广阔区域，其相互作用范围比几厘米更长。
Spin-dependent fifth-forces are associated with particles beyond the standard model. In particular, light pseudo-scalar bosons mediate long-range forces, allowing mass to interact with spins. The search of these interactions can be performed by periodically varying the distance between a source mass and a spin ensemble, in order to modulate the force intensity and detect it with precision magnetometry techniques. In our setup the force arises from room temperature lead masses and is detected in a paramagnetic crystal at 4.2\,K, whose magnetisation is monitored by a SQUID-based magnetometer with the sensitivity of $53\,\mathrm{aT/\sqrt{Hz}}$. Our measurement places the most stringent constraints on a spin-mass interaction in the ranges 1\,cm to 10\,m and 10\,km to 300\,km, improving existing limits up to more than two orders of magnitude. We show that this experimental technique may be further leveraged to explore a vast region of the fifth force's parameter space, with an interaction range longer than a few centimetres.
