Equivalence of Active and Passive Gravitational Mass Tested with Lunar Laser Ranging
Abstract
LLR measures the distance between observatories on Earth and retro-reflectors on Moon since 1969. In this paper, we study the possible violation of the equality of passive and active gravitational mass (ma/mp), for Aluminium (Al) and Iron (Fe), using LLR data. Our new limit of 3.9·10-14 is about 100 times better than that of Bartlett and Van Buren [1986] reflecting the benefit of the many years of LLR data.
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