Probing CPT invariance with top quarks at the LHC
arXiv:2405.12162
Abstract
The first model-independent sensitivity to CPT violation in the top-quark sector is extracted from ATLAS and CMS measurements of the top and antitop kinematical mass difference. We find that the temporal component of a CPT-violating background field interacting with the top-quark vector current is restricted within the interval GeV at 95% confidence level.
6 pages, journal version