Theory Seminars

CPT violation in the top sector

by Nathaniel Sherrill

Europe/Madrid
IFAE Seminar Room (In-Person)

IFAE Seminar Room

In-Person

Description

CPT invariance is among the most fundamental principles in physics. I will discuss the first model-independent assessment of CPT violation in top quarks. A CPT-violating asymmetry is defined and compared with measurements of the top-antitop kinematical mass difference from the ATLAS and CMS Collaborations. As a result, the temporal component of a CPT-violating background field is restricted to the interval [-0.13, 0.29] GeV at 95% confidence level. I will also discuss analysis strategies for probing the remaining unconstrained vector components. 

 

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