Measurements of CPT Violation at LHCb
Jeroen van Tilburg (for the LHCb Collaboration)

TL;DR
This paper reports precise measurements of CPT violation and Lorentz symmetry breaking in B meson mixing at LHCb, setting new bounds on SME coefficients and advancing tests of fundamental symmetries.
Contribution
The study provides the first high-precision measurements of SME coefficients related to CPT and Lorentz violation in B meson systems at LHCb.
Findings
Significantly improved bounds on SME coefficients.
High-precision measurements enabled by B meson boost.
Confirmation of CPT symmetry within experimental sensitivity.
Abstract
Recent measurements of CPT violation and Lorentz symmetry breaking in mixing and mixing, obtained from data taken by the LHCb experiment, are highlighted. The results are expressed in terms of the Standard-Model Extension (SME) coefficients, which incorporate both CPT and Lorentz violation. Due to the large boost of the mesons at LHCb, the SME coefficients can be determined with high precision. The bounds on these coefficients are improved significantly compared to previous measurements.
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