Speaker
Description
Time-dependent measurements of CP violation are chief goals of the Belle II physics program. Comparison between penguin-dominated $b \to q\bar qs$ and tree-dominated $b \to c \bar cs$ results allows for stringent tests of CKM unitarity that are sensitive to non-SM physics.
This program requires excellent vertexing capabilities. After presenting recent world-leading results on charm-hadron lifetimes that demonstrate the Belle II vertexing performance, we report on recent results on $B^0 \to K_S \pi^0$, $B^0 \to K_S K_S K_S$, and $B^0 \to \phi K_S$ decays. In addition, a novel algorithm to identify the flavor of neutral charm mesons is presented that effectively doubles the sample size for many measurements of CP violation and flavor mixing.
