New Test of Lorentz Invariance Using the MICROSCOPE Space Mission

We use data from the T-SAGE instrument on board the MICROSCOPE space mission to search for Lorentz violation in matter-gravity couplings as described by the Lorentz violating standard model extension (SME) coefficients ({\overline{a}}_{\mathrm{eff}}{)}_{\ensuremath{\mu}}^{w} where (\ensuremath{\mu}=T X Y Z and (w=e p n for the electron, proton, and neutron. One of the phenomenological consequences of a nonzero value of...