Search for the semileptonic decays ${\Xi }_c^0\to {\Xi }^0{\ell }^{+}{\ell }^{-}$ at Belle

Belle Collaboration, J. X. Cui, Y. B. Li +163

Using the full data sample of 980 ${\mathrm{fb}}^{-1}$ collected with the Belle detector at the KEKB asymmetric energy electron-positron collider, we report the results of the first…