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arXiv · 1207.2442

Torsion-balance tests of the weak equivalence principle

T. A. Wagner·S. Schlamminger·J. H. Gundlach·E. G. Adelberger
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Abstract

We briefly summarize motivations for testing the weak equivalence principle and then review recent torsion-balance results that compare the differential accelerations of beryllium-aluminum and beryllium-titanium test body pairs with precisions at the part in $10^{13}$ level. We discuss some implications of these results for the gravitational properties of antimatter and dark matter, and speculate about the prospects for further improvements in experimental sensitivity.

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T. A. Wagner, S. Schlamminger, J. H. Gundlach, E. G. Adelberger. 2012-07-10. Torsion-balance tests of the weak equivalence principle. https://doi.org/10.1088/0264-9381%2F29%2F18%2F184002

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