TY - JOUR AU - Oset, E. AU - Peláez Sagredo, José Ramón AU - Roca, L. PY - 2003 DO - 10.1103/PhysRevD.67.073013 SN - 0556-2821 UR - https://hdl.handle.net/20.500.14352/51740 T2 - Physical review D AB - We improve the calculations of the η→π⁰ϒϒ decay within the context of meson chiral Lagrangians. We use a chiral unitary approach for the... LA - eng PB - Amer Physical Soc KW - Photon-photon collisions KW - Jona-lasinio model KW - Perturbation-theory KW - Radiative decay KW - Njl model KW - One-loop KW - Meson KW - ϒ-ϒ->π π₀ KW - Symmetry KW - η->π-0-ϒ-ϒ TI - Η → π⁰ ϒ ϒ decay within a chiral unitary approachη TY - journal article VL - 67 ER -