Navigating the zoo of CP observables in the top-Yukawa coupling

by Marco Menen (University of Hannover)

Thursday 7 May 2026, 10:00 → 12:00 Europe/Berlin

Kreuzbergweg 24/0.052 (FTD) - Präsentationsraum (FTD)

Abstract: 

Deviations from the CP-even nature of the Higgs boson as predicted by the SM would be a clear indication of new physics. 
Despite significant experimental progress since its discovery, current measurements of the Higgs boson couplings often leave room for sizeable CP-violating effects.
In this talk, I discuss different ways of constraining the CP structure of the top-Yukawa coupling, which is well accessible at the LHC. 
For this, I focus on various approaches of constructing CP-sensitive observables, such as combinations of kinematics, asymmetries, and ML-based discriminants. 
Their potential benefits and challenges are discussed, and prospects for future measurements are outlined. 

 

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