2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48791We derive a thermal effective action for soft fields in the broken phase of the electroweak theory in the limit of a strongly interacting Higgs sector. This action is just the proper generalization of the hard thermal loop effective action of a Yang-Mills theory when there is a Higgs mechanism and for a heavy Higgs boson. One can obtain from this action the thermal corrections to the masses of the W, Z and the photon.5 pages, uses sprocl.sty. Talk given at SEWM98, December 98, CopenhagenHigh Energy Physics - Phenomenologytext