2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148986A Higgs-Yukawa system in a broken phase and Euclidean solutions are investigated. Although it has been believed that there are no Euclidean solutions in the broken phase in 4-dimension, we find numerically ones in the phase due to the effect of a strong Yukawa coupling. The complex Yukawa coupling is necessary for the stability of the solution. The extension to a complex Higgs-Yukawa system is also investigated.10 pages, 6 figures, LatexHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext