Test of a composition-dependent force by a free-fall interferometer
- 24 April 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (17) , 1941-1944
- https://doi.org/10.1103/physrevlett.62.1941
Abstract
We have obtained an experimental null result for a possible composition-dependent force by a newly developed Galilean method in which we measured the acceleration difference between two objects freely falling simultaneously in a vacuum chamber. The data on two pairs of objects, an aluminum-copper pair and an aluminum-carbon pair, indicate ‖ξ‖λ if baryon coupling and a simple model of the Earth is assumed.Keywords
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