Branching fractions and CP asymmetries in B decays through b -> c processes at Belle

Sumitted to PubDB: 2022-11-19

Category: Proceeding, Visibility: Public

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Authors	Kim Smith
Date	Nov. 15, 2022
Belle II Number	BELLE2-CONF-PROC-2022-021
Abstract	We report results of the branching fractions for a number of charm B decays including $\APBzero \to \PD^{+}\Ppiminus$, $\APBzero \to \PD^{+}\PKminus$, $\APBzero \to \PDplus\Ppiminus$ and $\APBzero \to \PDplus\PKminus$ all measured using $772\times 10^6$ B-meson pairs recorded by the Belle experiment at the KEKB asymmetric-energy $e^+e^-$ collider. The measurements provide a precise test of QCD factorisation. We also report preliminary results for the branching fraction $\mathcal{B}(\PBplus \to \PD^{(*)}_s(\Peta,\PKs)/\PDplus(\Peta,\PKs))$ and the time-dependent CP asymmetry in $\PB \to \Petac\PKs$. The latter measurement provides information on $\sin2\phi_1$.