2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/207878We investigate the renormalization of N=2 SUSY L-G models with central charge $c=3p/(2+p)$ perturbed by an almost marginal chiral operator. We calculate the renormalization of the chiral fields up to $gg{^*}$ order and of nonchiral fields up to $g(g^{*})$ order. We propose a formulation of the nonrenormalization theorem and show that it holds in the lowest nontrivial order. It turns out that, in this approximation, the chiral fields can not get renormalized $Φ^{k}=Φ^{k}_{0}$. The $β$ function then remains unchanged $β=εgr$.26 p. (the revised version)High Energy Physics - Theorytext