Observation of $B\to D^{(\ast )}{K}^{-}{K}_S^0$ decays using the 2019-2022 Belle II data sample

Belle II Collaboration, F. Abudinén, I. Adachi +575

We present a measurement of the branching fractions of four $B^{0,-}\to D^{(\ast )+,0}{K}^{-}{K}_S^0$ decay modes. The measurement is based on data from SuperKEKB electron-positron colli…