On the Ï(1020)f_0(980) S-wave scattering and the Y(2175) resonance
arXiv:0906.0222 · doi:10.1103/PhysRevD.80.054011
Abstract
We have studied the Ï(1020)f_0(980) S-wave scattering at energies around threshold employing chiral Lagrangians coupled to vector mesons through minimal coupling. The interaction kernel is obtained by considering the f_0(980) as a K\bar{K} bound state. The Y(2175) resonance is generated in this approach by the self-interactions between the Ï(1020) and the f_0(980) resonances. We are able to describe the e^+e^-\to Ï(1020)f_0(980) recent scattering data to test experimentally our scattering amplitudes, concluding that the Y(2175) resonance has a large Ï(1020)f_0(980) meson-meson component.
20 pages, 8 figures