27–31 Oct 2025
Brown University
US/Eastern timezone

Measurements of the CP structure of Higgs-boson couplings with the ATLAS detector

28 Oct 2025, 11:00
17m
Brown University

Brown University

Rhode Island School of Design (RISD), 20 Washington Pl, Providence, RI 02903, United States
Precision Higgs measurements Single Higgs measurements and calculations

Speaker

Simen Hellesund (University of Bergen (NO))

Description

The Standard Model predicts the Higgs boson to be a CP-even scalar, but CP-odd contributions to its interactions with vector bosons and quarks are not yet strongly constrained. Various Higgs boson production and decay processes provide valuable tools to investigate the CP nature of these interactions. This talk presents the most recent measurements of the CP properties of Higgs boson interactions with vector bosons, performed by the ATLAS experiment using proton-proton collision data collected at sqrt(s) =13 TeV. These results offer important constraints on possible CP-violating effects, advancing our understanding of Higgs boson dynamics.

Presentation materials