Quantum gravity: Observational constraints on a pair of Yukawa terms

Details Quantum gravity: Observational constraints on a pair of Yukawa terms Quantum gravity: Observational constraints on a pair of Yukawa terms

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phrvd..36.2374s&link_type=abstract

Physical Review D (Particles and Fields), Volume 36, Issue 8, 15 October 1987, pp.2374-2380

Physics

33

Scientific paper

Measurements of gravity in mines that indicate the existence of a very weak intermediate-range force, causing a mutual repulsion of masses at separations up to 1 or 2 km, are used to examine the possibility that we are observing not a single force but a small difference between two forces, each comparable to ``normal'' gravity but of opposite signs. Constraints are imposed also by satellite and lunar reflector data and by measurements of the gravitational constant using a hydroelectric reservoir. Ranges of the opposing forces up to 450 km are permitted, provided the repulsive force is stronger by about 1% of gravity and its range is slightly shorter than that of the attractive force. If the forces are baryon-number dependent then gravity differences apparent in the von Eötvös data for various materials are also compatible with these conclusions.

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