2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185072We use the method of thermal QCD sum rules to investigate the effects of temperature on the neutron electric dipole moment d_n induced by the vacuum \barθ-angle. Then, we analyze and discuss the thermal behaviour of the ratio {d_n \over \barθ} in connection with the restoration of the strong CP symmetry breaking.09 pages, 01 eps_figure, typos corrected, few sentences added for section 4, results and conclusion unchangedHigh Energy Physics - Phenomenologytext