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

Sumitted to PubDB: 2023-07-31

Category: Talk, Visibility: Public

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Authors	Michele Veronesi
Date	July 17, 2023
Belle II Number	BELLE2-TALK-CONF-2023-104
Abstract	Time-dependent measurements of CP violation are chief goals of the Belle II physics program. Comparison between penguin-dominated b ->qqbars and tree-dominated b -> ccbars 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 B0->Ks,pi0; B0->Ks,Ks,Ks; and B0->phi,Ks 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	31st International Symposium on Lepton Photon Interactions at High Energies