Phys. Rev. Lett. 87, 111101 (2001) [4 pages]

A New Determination of G Using Two Methods

Abstract

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T. J. Quinn^1,*, C. C. Speake², S. J. Richman^1,†, R. S. Davis¹, and A. Picard¹
¹Bureau International des Poids et Mesures, Pavillon de Breteuil, F-92312 Sèvres Cedex, France
²School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom

Received 12 February 2001; published 27 August 2001

We present the results of a measurement of G made with a torsion-strip balance used in two substantially independent ways. The two results agree to within their respective uncertainties; the correlation coefficient of the two methods is -0.18. The result is G = 6.67559(27)×10^-11m³kg^-1s^-2 with a standard uncertainty of 4.1 parts in 10⁵. Our result is 2 parts in 10⁴ higher than the recent result of Gundlach and Merkowitz.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.87.111101

DOI:

10.1103/PhysRevLett.87.111101

PACS:

04.80.Cc, 06.20.Jr

^*Corresponding author.Email address: tquinn@bipm.org

^†Current address: REO Inc., 1855 S. 57th Court, Boulder, CO 80301.

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Phys. Rev. Lett. 87, 111101 (2001) [4 pages]

A New Determination of G Using Two Methods