WIDG Seminar: Arianna García Caffaro, Yale, "Probing the Higgs CP Structure and Quantifying QCD Systematics in Jet Substructure Techniques"
Since the Higgs boson’s discovery in 2012, the High Energy Physics community has centered its efforts on thoroughly studying this particle’s properties. As a step towards that goal, the ATLAS Collaboration has undertaken a study of the CP nature of the Higgs Yukawa coupling to the tau lepton. A Run 2 analysis has measured the CP mixing angle to be 9 ± 16°, excluding the pure CP-odd Higgs hypothesis at 3.4σ. The next iteration of this analysis with partial Run 3 data is underway.