Recent Belle II results on time-dependent CP violation and charm physics

Sumitted to PubDB: 2023-05-25

Category: Talk, Visibility: Public

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Authors	Jakub Kandra
Date	May 14, 2023
Belle II Number	BELLE2-TALK-CONF-2023-062
Abstract	Measurements of time dependent CP violation are chief goals of the Belle II physics program. Comparisons of penguin-dominated b-> qqbar s to tree-dominated b-> ccbar s results allow for stringent tests of CKM unitarity that are sensitive to non-SM physics, but require excellent vertexing capabilities. After presenting recent world-leading results on charm-hadron lifetimes that demonstrate the Belle II vertexing performance, we report on results on B0->Kspi0, B0->KsKsKs, and B0->phiKs 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.
Conference	34th Rencontres de Blois 2023 - Particle Physics and Cosmology