2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191336Mass shifts induced by one-loop fluctuations of semi-local self-dual vortices are computed. The procedure is based on canonical quantization and heat kernel/ zeta function regularization methods. The issue of the survival of the classical degeneracy in the semi-classical regime is explored.Latex file, 8 pages, Added References, version to appear in Journal of Physics A, Special Issue QFEXT07High Energy Physics - Theorytext