2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/143133The quadratic divergences caused by Yukawa interactions in the standard theory of elementary particle physics is shown to be removed by introducing finite-mass complex-ghost regulator fields. In this modification of the standard theory, its manifest covariance, renormalizability, gauge invariance and unitarity are retained, and no new observable particles are introduced.6 pagesHigh Energy Physics - Theorytext