The $\sigma$ and $\rho$ coupling constants for the charmed and beauty mesons

Hee-Jin Kim, Hyun-Chul Kim

We investigate the $\sigma$ and $\rho$ coupling constants for the $DD$ and $D^{\ast }{D}^{\ast }$ interactions, based on correlated $2\pi$ exchange in the $DD$ and $D^{\ast }{D}^{\ast }$ interactions. Starting from the…