2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45504We reanalyze the problem of the cosmological constant associated with the phase transition in a self-interacting scalar theory. It is pointed out that the generally accepted ``triviality'' of $(λΦ^4)_4$ implies a first-order phase transition. As a consequence, Spontaneous Symmetry Breaking can be consistent with zero cosmological constant if one assumes that it vanishes in the symmetric phase $<Φ>=0$.11 pages, RevTeXHigh Energy Physics - Phenomenologytext