Speaker
Description
We investigate the three-body $PPV$ and $PVV$ systems, where $P$ denotes a pseudoscalar meson and $V$ denotes a vector meson. The Faddeev equations are solved within the fixed-center approximation, while the underlying two-body $PP$, $PV$ and $VV$ interactions are determined from the chiral unitary approach. Strong interactions among these mesons produce obvious resonance structures in the modulus squared of the three-body scattering amplitude, indicating the possible formation of exotic hadron states. We also conduct a theoretical study of the hidden charm $D\bar{D}K$ three-body system. The obtained results are consistent with previous theoretical predictions and support the presence of an excited hidden-charm kaon state, $K_{c\bar{c}}(4180)$, with quantum numbers $I(J^P) = \frac{1}{2}(0^-)$ and a mass of approximately $4180$ MeV. These findings provide theoretical guidance for future experimental searches for exotic hadrons in three-meson systems.
