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M I C R O S C O P E limits on the strength of a new force with comparisons to gravity and electromagnetism

Fayet, Pierre

Extremely weak new forces could lead to apparent violations of the equivalence principle. The MICROSCOPE experiment implies that the relative strength of a new long-range force, compared with gravity, is constrained to |α_{¯ g}|<3.2 ×10^-11 , 2.3 ×10^-13 , 2.2 ×10^-13 , 6.7 ×10^-13 , and 1.5 ×10

General study of chameleon fifth force in gravity space experiments

Bergé, Joel; Pernot-Borràs, Martin; Uzan, Jean-Philippe +1 more

In this article we investigate the profile of the scalar field of a scalar-tensor theory subject to the chameleon mechanism in the context of gravity space missions like the MICROSCOPE experiment. We analyze the experimental situations for models with an inverse power-law potential that can in principle induce a fifth force inside the satellite, a…