Gravitation Physics at BGPL
P. E. Boynton, R. M. Bonicalzi, A. M. Kalet, A. M. Kleczewski, J. K. Lingwood, K. J. McKenney, M. W. Moore, J. H. Steffen, E. C. Berg, W. D. Cross, R. D. Newman, R. E. Gephart
Abstract
We report progress on a program of gravitational physics experiments using cryogenic torsion pendula undergoing large-amplitude torsion oscillation. This program includes tests of the gravitational inverse square law and of the weak equivalence principle. Here we describe our ongoing search for inverse-square-law violation at a strength down to 10-5 of standard gravity. The low-vibration environment provided by the Battelle Gravitation Physics Laboratory (BGPL) is uniquely suited to this study.
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