Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 68: Higgs Physics VIII (CP)
T 68.4: Vortrag
Donnerstag, 3. April 2025, 17:00–17:15, ZHG105
Search for CP violation in the tau Yukawa coupling with CMS Run 3 data — •Mathilde Witt1,2, Andrea Cardini3, Elisabetta Gallo2, Anne-Catherine Le Bihan1, Océane Poncet1, Alexei Raspereza2, Gourab Saha1, and Stepan Zakharov2 — 1Institut pluridisciplinaire Hubert Curien, Strasbourg, France — 2Deutsches Elektronen-Synchrotron, Hamburg. Germany — 3Universidad de Oviedo, Oviedo, Spain
Following the discovery of the Higgs boson in 2012 by the ATLAS and CMS Collaborations, studies are required to investigate its Charge-Parity (CP) properties in the Yukawa interaction with tau leptons. This talk presents an ongoing master’s thesis in the µ a1 decay channel. Different reconstruction techniques are implemented in the µ a1 channel to enhance the sensitivity to the CP properties of the Higgs boson to investigate whether its properties are CP-even, CP-odd, or CP-mixed. The a1 channel denotes the decay τ → ντ π π π. The data were collected with the CMS detector during 2022-2023 at √s = 13.6 TeV, corresponding to an integrated luminosity of 63 fb−1
Keywords: Higgs; CP; Tau