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Updated: Jun 30, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Lorentz Symmetry Violations from Matter-Gravity Couplings with Lunar Laser Ranging
A Bourgoin1, C Le Poncin-Lafitte2, A Hees3
1Dipartimento di Ingegneria Industriale, University of Bologna, via fontanelle 40, Forlì, Italy.
Abstract:
The standard-model extension (SME) is an effective field theory framework aiming at parametrizing any violation to the Lorentz symmetry (LS) in all sectors of physics. In this Letter, we report the first direct experimental measurement of SME coefficients performed simultaneously within two sectors of the SME framework using lunar laser ranging observations. We consider the pure gravitational sector and the classical point-mass limit in the matter sector of the minimal SME. We report no deviation from general relativity and put new realistic stringent constraints on LS violations improving up to 3 orders of magnitude previous estimations.
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