Search for rare or forbidden decays of the $D^0$ meson

J. P. Lees, V. Poireau, V. Tisserand +234

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type $D^0\to h^{\prime -}{h}^{-}{\ell }^{\prime +}{\ell }^{+}$…