Test of the gravitational inverse-square law at 0.4- to 1.4-m mass separations

Details Test of the gravitational inverse-square law at 0.4- to 1.4-m mass separations Test of the gravitational inverse-square law at 0.4- to 1.4-m mass separations

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvd..47.1290g&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 47, Issue 4, 15 February 1993, pp.1290-1297

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Other Topics In General Relativity And Gravitation

Scientific paper

Using a superconducting gravimeter, we have measured the force on a spherical shell of Nb due to the presence of a spherical mass M that is periodically moved up and down on an elevator underneath the gravimeter. Over a distance range from 0.4 to 1.4 m Newton's inverse square law is verified to a precision of +/-1%. At a 95% confidence level, our data restrict the coupling constant α of a non-Newtonian Yukawa potential to be ||α||<0.012G for Yukawa ranges from 0.2 to 2.0 m.

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