Searching for a $D\bar{D}$ bound state with the $\psi (3770)\to \gamma D^0{\bar{D}}^0$ decay

Lianrong Dai, Genaro Toledo, Eulogio Oset

We perform a calculation of the mass distribution in the $\psi (3770)\to \gamma D\bar{D}$ decay, studying both the $D^{+}{D}^{-}$ and $D^0{\bar{D}}^0$ decays. The electromagnetic interaction is…