Speaker
Description
Using the Fixed Center Approximation to Faddeev equations we have investigated the $DKK$ and $DK\bar{K}$ three-body systems, with the input of two-body interactions obtained from the chiral unitary approach, and considering that the $D^*_{s0}(2317)$, generated from the $DK$ interaction, acts as the heavy cluster. For the $DK\bar{K}$ system we have found evidence of a state with $I(J^P)=1/2(0^-)$ and mass about $2833 - 2858$ MeV, above the $D^*_{s0}(2317)\bar{K}$ threshold. Our findings indicate that this state is dominated by a $Df_0(980)$ component, and it could be searched for in the $\pi \pi D$ invariant mass. Our results also corroborate with different approaches from the literature, using Sum Rules and Faddeev equations without the FCA approximation. On the other hand, no clear bound states or resonances were found in the exotic $DKK$ system.
