%0 Journal Article
%A Peláez Sagredo, José Ramón
%A Ríos, R.
%T Nature of the f_0(600) scalar meson from its N_c dependence at two loops in unitarized chiral perturbation theory
%D 2006
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/51723
%X By using unitarized two-loop chiral perturbation theory partial waves to describe pion-pion scattering we find that the dominant component of the lightest scalar meson does not follow the q q̅ dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggests that a subdominant q q̅ component of the f_0(600) possibly originates around  1 GeV.
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