Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 30: Flavour Physics 3

T 30.1: Vortrag

Dienstag, 22. März 2022, 16:15–16:30, T-H15

Time-Dependent Charge-Parity Violation at Belle II — •Caspar Schmitt — Max-Planck Institute for Physics, Munich, Germany

Overconstraining the unitarity triangle of the Cabibbo-Kobayashi-Maskawa mixing matrix by precision measurements is an essential test for the description of weak currents in the standard model (SM) of particle physics. We thereby test our present understanding of charge-parity (CP) violation in the quark sector and search for CP violation beyond the SM, necessary to explain the observed baryon-asymmetry in the universe.

We present time-dependent measurements of CP violation and flavor mixing in the B meson system using data from the Belle II Experiment. We introduce the measurement principles of time-dependent analyses at B factories and put emphasis on our latest analysis of flavor mixing in the neutral B meson system. In particular, we focus on the treatment and estimation of uncertainties resulting from residual background processes.