The use of many-body methods for the calculation of meson-like spectra O.A. Rico-Trejo, T. Yépez-Martínez, P.O. Hess and O. Civitarese EPJ Web Conf., 333 (2025) 02004 Published online: 01 August 2025 DOI: 10.1051/epjconf/202533302004