Study of the $DK K$ and $DK bar{K}$ systems

Using the Fixed Center Approximation to Faddeev equations we have investigated the $DKK$ and $DKbar{K}$ three-body systems, considering that the $D^*_{s0}(2317)$ acts as the heavy cluster in both cases, generated from the $DK$ interaction in isospin 0. For the $DKbar{K}$ system we have found evidence of a state with $I(J^P)=1/2(0^-)$ and mass about $2833 - 2858$ MeV, above the threshold of $D^*_{s0}(2317)bar{K}$. Our results indicate that this state is dominated by a $Df_0(980)$ component, then it could be searched for in the $pi pi D$ invariant mass. On the other hand, no clear evidence related to a state from the $DKK$ interaction is found.