rho rho scattering revisited with coupled channels of pseudoscalar mesons

The rho rho scattering has been studied by two groups which both claimed a dynamical generated scalar meson, most likely to be f(0)(1370). Here we investigate the influence of coupled channels of pseudoscalar mesons, i.e., pi pi and (K) over barK, on this dynamical generated scalar state. With the coupled-channel effect included, the pole and partial decay widths are found to be more close to PDG values for f(0)(1500).