Using three small-eccentricity relativistic binary pulsars, this paper obtains order-of-magnitude upper limits on SME matter-gravity coefficients for neutrons, protons, and electrons.
Gravitational Searches for Lorentz Violation with Matter and Astrophysics
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This contribution to the CPT'16 proceedings summarizes recent tests of Lorentz violation in the pure-gravity sector with cosmic rays and reviews recent progress in matter-gravity couplings.
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Lorentz-violating matter-gravity couplings in small-eccentricity binary pulsars
Using three small-eccentricity relativistic binary pulsars, this paper obtains order-of-magnitude upper limits on SME matter-gravity coefficients for neutrons, protons, and electrons.