2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/221522The issue of Gamow-Teller sum rule in atomic nuclei is reexamined in the framework of a relativistic description of nuclei. It is shown that the total Gamow-Teller strength in the nucleon sector is reduced by about 12% as compared to the prediction of a non-relativistic description. This reduction is due to the antinucleon degrees of freedom.REVTeX4, no figures, change contentNuclear Theorytext