2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54733The standard MS renormalization prescription is inadequate for dealing with multiscale problems. To illustrate this, we consider the computation of the effective potential in the Higgs-Yukawa model. It is argued that the most natural way to deal with this problem is to introduce a 2-scale renormalization group. We review various ways of implementing this idea and consider to what extent they fit in with the notion of heavy particle decoupling.talk given at RG96, Dubna: 6 pages: LaTeX with sprocl.styHigh Energy Physics - Theorytext