Measurement of the branching fraction of the $B^0\to K_S^0{\pi }^0\gamma$ decay using 190 fb${}^{-1}$ of Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +590

We report the measurement of the branching fraction of the $B^0\to K_S^0{\pi }^0\gamma$ decay in $e^{+}{e}^{-}\to {\rm Y}(4S)\to B\overline{B}$ data recorded by the Belle II experiment at the Sup…