PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Quark and Lepton Flavour Physics
Branching fractions and CP asymmetries in $B$ decays through $b\to c$ process at Belle
K. Smith
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Pre-published on: December 07, 2022
Published on:
Abstract
We report results of the branching fractions for a number of charm B decays including $\bar{B}^{0} \to D^{*+}\pi^{-}$, $\bar{B}^{0} \to D^{*+}K^{-}$, $\bar{B}^{0} \to D^{+}\pi^{-}$ and $\bar{B}^{0} \to D^{+}K^{-}$ 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 $\mathcal{B}(B^{+} \to D^{*+}_s(\eta,K^0_S)/D^{+}(\eta,K^0_S))$ and the time-dependent CP asymmetry in $B^0 \to \eta_c K^0_S$.
The latter measurement provides information on $\sin2\phi_1$.
DOI: https://doi.org/10.22323/1.414.0716
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