Structure of $KK{K}^{bar}$–$K\pi \pi$–$K\pi \eta$ Three-Body Resonance and Partial Decay Widths of $KK\left(14601460\right)$

Using the complex-scaling method, we discuss the coupled-channel $KK{K}^{bar}$–$K\pi \pi$–$K\pi \eta$ three-body resonance and determine the resonance pole with KK, $K{K}^{bar}$–$\pi \pi$, $K{K}^{bar}$–$\pi \eta$ and $K\pi$ two-body potentials describing two-body scattering properties and $f^0$ and $a^0$ resonances. It is shown that the three-body resonance can be interpreted as K(1460). To estimate the partial decay widths of this three-body resonance, we calculate the partial-wave components in the resonance wave function and evaluate roughly the partial decay widths in $K^{\ast }\pi$, $\epsilon K$ and $\rho K$ modes. We find that additional p-wave components are needed to explain the experimental partial decay widths of K(1460).