Galilean test for the fifth force

descriptionPublicationkeyboard_double_arrow_right Article 10 Aug 1987 English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 59, pages 609-612 (issn: 0031-9007,

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Authors: Niebauer, T. M.; McHugh, M. P.; Faller, J. E.;

doi: 10.1103/physrevlett.59.609

pmid: 10035824

Galilean test for the fifth force

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Abstract

We have carried out a direct free-fall experiment to measure the differential acceleration between two different materials (copper and uranium) falling in the Earth's gravitational field. The differential acceleration was measured to be less than 5 parts in 10/sup 10/ of the normal gravitational acceleration. This null result puts new limits on the strength and range of the proposed fifth force.

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