Speaker
Mr
Miguel Albaladejo
(U. Murcia)
Description
The interactions between the f_0(980) and a_0(980) scalar resonances and the lightest pseudoscalar mesons are studied. The interacting kernels are obtained without including any ad hoc free parameter, thanks to previous results on the nature of the lightest scalar resonances as dynamically generated from the rescattering of S-wave two-meson scattering. The amplitudes are then unitarized, and the final S-wave amplitudes are obtained. The resulting interactions are found to be very rich and generate a large amount of pseudoscalar resonances that we associate with the K(1460), \pi(1300), \pi(1800), \eta(1475) and X(1835). The exotic channels I=3/2 and I=1 are also considered. The former could be also resonant, in agreement with a previous prediction.
