Measurement of $B\to D_s^{(\ast )}K\pi$ branching fractions

The Belle Collaboration, J. Wiechczynski, T. Lesiak

We report a measurement of the exclusive $B^{+}$ meson decay to the $D_s^{(\ast )-}{K}^{+}{\pi }^{+}$ final state using $657\times 10^{6}B\overline{B}$ pairs collected at the ${\rm Y}(4S)$ resonance w…