Constraining velocity-dependent Lorentz/CPT-violations using Lunar Laser Ranging
Abstract
The possibility for Lorentz/CPT-breaking, which is motivated by unification theories, can be systematically tested within the standard-model extension framework. In the pure gravity sector, the mass dimension 5 operators produce new Lorentz and CPT-breaking terms in the 2-body equations of motion that depend on the relative velocity of the bodies. In this Letter, we report new constraints on 15 independent SME coefficients for Lorentz/CPT-violations with mass dimension 5 using lunar laser ranging. We perform a global analysis of lunar ranging data within the SME framework using more than 26,000 normal points between 1969 and 2018. We also perform a jackknife analysis in order to provide realistic estimates of the systematic uncertainties. No deviation from Lorentz/CPT symmetries is reported. In addition, when fitting simultaneously for the 15 canonical SME coefficients for Lorentz/CPT-violations, we improve up to three orders of magnitude previous post-fit constraints from radio pulsars.
Keywords
Cite
@article{arxiv.2011.06641,
title = {Constraining velocity-dependent Lorentz/CPT-violations using Lunar Laser Ranging},
author = {A. Bourgoin and S. Bouquillon and A. Hees and C. Le Poncin-Lafitte and Q. G. Bailey and J. J. Howard and M. -C. Angonin and G. Francou and J. Chabé and C. Courde and J. -M. Torre},
journal= {arXiv preprint arXiv:2011.06641},
year = {2021}
}
Comments
8 pages, 1 figure