Lee J G, Adelberger E G, Cook T S, Fleischer S M, Heckel B R
Center for Experimental Nuclear Physics and Astrophysics, Box 354290, University of Washington, Seattle, Washington 98195-4290 USA.
Phys Rev Lett. 2020 Mar 13;124(10):101101. doi: 10.1103/PhysRevLett.124.101101.
We tested the gravitational 1/r^{2} law using a stationary torsion-balance detector and a rotating attractor containing test bodies with both 18-fold and 120-fold azimuthal symmetries that simultaneously tests the 1/r^{2} law at two different length scales. We took data at detector-attractor separations between 52 μm and 3.0 mm. Newtonian gravity gave an excellent fit to our data, limiting with 95% confidence any gravitational-strength Yukawa interactions to ranges <38.6 μm.
我们使用一个静止的扭秤探测器和一个旋转的吸引体来测试引力的1/r²定律，该吸引体包含具有18重和120重方位对称性的测试物体，能同时在两个不同长度尺度上测试1/r²定律。我们在探测器与吸引体间距为52μm至3.0mm之间采集了数据。牛顿引力对我们的数据拟合得非常好，以95%的置信度将任何引力强度的汤川相互作用限制在范围<38.6μm内。
