Rios, G.Hanhart, ChristophPeláez Sagredo, José Ramón2023-06-202023-06-202011978-0-7354-0899-910.1063/1.3575125https://hdl.handle.net/20.500.14352/45620ISSN: 0094-243X ©2011 American Institute of Physics 978-0-7354-0899-9. International Conference on Quark Confinement and the Hadron Spectrum (9. 2010. Madrid).We review the N_c and m_π dependence of the rho(770) and σ (or f_0(600) resonances generated with the Inverse Amplitude Method. The σ N_c behavior is at odds with being dominantly a q̅q̅ state, but there is a hint of a subdominant q̅q̅o component with a mass above 1 GeV. We find fair agreement with lattice results for the chiral extrapolation of the ρ mass, and that the ρ π π coupling is almost m_π independent whereas the σ π π depends strongly on m_π.engbook parthttp://dx.doi.org/10.1063/1.3575125http://scitation.aip.orgopen access51-73Scalar mesonsChiral Lagrangian1/Nc expansionFísica-Modelos matemáticosFísica matemática