Null Test of the Gravitational Inverse Square Law

Details Null Test of the Gravitational Inverse Square Law Null Test of the Gravitational Inverse Square Law

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phrvl..49.1745c&link_type=abstract

Physical Review Letters, Volume 49, Issue 24, December 13, 1982, pp.1745-1748

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39

Other Topics In General Relativity And Gravitation

Scientific paper

An experiment has been performed to demonstrate a new source-independent null test of the inverse square law of gravitation. A single-axis superconducting gravity gradiometer was rotated into three orthogonal orientations to measure the Laplacian of the gravitational potential produced by a 1600-kg lead pendulum at an average distance of 2.3 m. The result is that if one assumes a potential of the form ϕ(r)=-(GMr)[1+αexp(-μr)], the value of α is + 0.024+/-0.036 at μ-1=1 m.

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