Search for $C$ violation in the decay $\eta \to {\pi }^0+e^{+}+e^{-}$ with WASA-at-COSY

P. Adlarson, W. Augustyniak, W. Bardan +90

We report on the investigation of the rare decay $\eta \to {\pi }^0+{\text{e}}^{+}+{\text{e}}^{-}$ which is of interest to study both $C$ violation in the electromagnetic interaction and to…