TY - JOUR AU - Peláez Sagredo, José Ramón PY - 2014 DO - 10.1051/epjconf/20147303003 SN - 2100-014X UR - https://hdl.handle.net/20.500.14352/35023 T2 - EPJ Web of Conferences AB - In this talk I will very briefly comment on the major revision of the σ or f_0(500) meson in the Review of Particle Physics, driven by new data and rigorous dispersive studies. The long debate on the mass, width and very existence of this meson is... LA - eng PB - E D P Sciences KW - Chiral perturbation-theory KW - Pi-pi scattering KW - High-statistics KW - Gev-c KW - Decay KW - EquationSpanish Research contract TI - Present status of the f_0(500) or σ meson TY - journal article VL - 73 ER -