The $K{\bar{K}}^{\ast }$ interaction in the unitary coupled-channel approximation

Da-Ming Wan, Si-Yu Zhao, Bao-Xi Sun

The $K{\bar{K}}^{\ast }$ interaction Lagrangian is constructed when the $SU(3)$ hidden gauge symmetry is taken into account, and then the $K{\bar{K}}^{\ast }$ potential is obtained. In the low ene…