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APS » Journals » Phys. Rev. D » Volume 74 » Issue 8
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Phys. Rev. D 74, 082001 (2006) [25 pages]

Measurement of Newton’s gravitational constant

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St. Schlamminger*, E. Holzschuh†, W. Kündig‡, F. Nolting§, R. E. Pixley**, J. Schurr††, and U. Straumann
Physik-Institut der Universität Zürich, CH-8057 Zürich, Switzerland

Received 12 June 2006; published 4 October 2006

A precision measurement of the gravitational constant G has been made using a beam balance. Special attention has been given to determining the calibration, the effect of a possible nonlinearity of the balance and the zero-point variation of the balance. The equipment, the measurements, and the analysis are described in detail. The value obtained for G is 6.674 252(109)(54)×10-11  m3 kg-1 s-2. The relative statistical and systematic uncertainties of this result are 16.3×10-6 and 8.1×10-6, respectively.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.74.082001
DOI:
10.1103/PhysRevD.74.082001
PACS:
04.80.−y, 06.20.Jr

*Present address: University of WA, Seattle, WA, USA.

†Deceased

‡Deceased

§Present address: Paul Scherrer Institut, Villigen, Switzerland.

**Electronic address: ralph.pixley@freesurf.ch

††Present address: Physikalisch Technische Bundesanstalt, Braunschweig, Germany.

 
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