Precision dispersive approaches versus unitarized chiral perturbation theory for the lightest scalar resonances $$σ /f_0(500) $$ and $$κ /K_0^(700) - Peláez, José R.; Rodas, Arkaitz; Ruiz de Elvira, Jacobo (The European physical journal. ST, Special topics, 2021)
Keywords: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS