Constraining velocity-dependent Lorentz/CPT-violations using Lunar Laser Ranging

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 th...

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Bibliographic Details
Published in:arXiv.org 2020-11
Main Authors: Bourgoin, A, Bouquillon, S, Hees, A, C Le Poncin-Lafitte, Bailey, Q G, Howard, J J, M -C Angonin, Francou, G, Chabé, J, Courde, C, J -M Torre
Format: Article
Language:English
Subjects:
Equations of motion
Laser ranging
Pulsars
Violations
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2011.06641