Testing Lorentz symmetry with planetary orbital dynamics

Abstract

Planetary ephemerides are a very powerful tool to constrain deviations from\nthe theory of General Relativity using orbital dynamics. The effective field\ntheory framework called the Standard-Model Extension (SME) has been developed\nin order to systematically parametrize hypothetical violations of Lorentz\nsymmetry (in the Standard Model and in the gravitational sector). In this\ncommunication, we use the latest determinations of the supplementary advances\nof the perihelia and of the nodes obtained by planetary ephemerides analysis to\nconstrain SME coefficients from the pure gravity sector and also from\ngravity-matter couplings. Our results do not show any deviation from GR and\nthey improve current constraints. Moreover, combinations with existing\nconstraints from Lunar Laser Ranging and from atom interferometry gravimetry\nallow us to disentangle contributions from the pure gravity sector from the\ngravity-matter couplings.\n