Abstract
Motivated by a variety of theories that predict new effects, we tested the gravitational law at separations between 10.77 mm and using two different 10-fold azimuthally symmetric torsion pendulums and rotating 10-fold symmetric attractors. Our work improves upon other experiments by up to a factor of about 100. We found no deviation from Newtonian physics at the 95% confidence level and interpret these results as constraints on extensions of the standard model that predict Yukawa or power-law forces. We set a constraint on the largest single extra dimension (assuming toroidal compactification and that one extra dimension is significantly larger than all the others) of and on two equal-sized large extra dimensions of Yukawa interactions with are ruled out at 95% confidence for Extra-dimensions scenarios stabilized by radions are restricted to unification masses regardless of the number of large extra dimensions. We also provide new constraints on power-law potentials with k between 2 and 5 and on the couplings of pseudoscalars with
- Received 5 May 2004
DOI:https://doi.org/10.1103/PhysRevD.70.042004
©2004 American Physical Society