TY - JOUR AU - Peláez Sagredo, José Ramón PY - 2004 DO - 10.1142/S0217732304016160 SN - 0217-7323 UR - https://hdl.handle.net/20.500.14352/51732 T2 - Modern physics letters A AB - By means of unitarized Chiral Perturbation Theory it is possible to obtain a remarkable description of meson-meson scattering amplitudes up to 1.2 GeV, and generate poles associated to scalar and vector resonances. Since Chiral Perturbation Theory is... LA - eng M2 - 2879 PB - World Scientific Publ Co Pte Ltd KW - π-π-scattering KW - Inverse amplitude method KW - Multi-quark hadrons KW - Kpi scattering KW - Phase-shift KW - One-loop KW - Meson KW - Sigma KW - Resonances KW - Decays TI - Light scalars as tetraquarks or two-meson states from large N_c and unitarized Chiral Perturbation Theory TY - journal article VL - 198 ER -